Patent application title:

BED RAIL CONNECTING ASSEMBLY AND BED RAIL

Publication number:

US20250113923A1

Publication date:
Application number:

18/484,201

Filed date:

2023-10-10

Smart Summary: A bed rail connecting assembly helps attach bed rails securely. It has two main parts called the first and second rail connecting pieces, along with a locking mechanism. When the locking mechanism is locked, it keeps the two pieces from rotating relative to each other. If an external force is applied, the locking mechanism can be released, allowing the two pieces to rotate. This design makes it easier to adjust or remove the bed rails when needed. πŸš€ TL;DR

Abstract:

The present disclosure provides a bed rail connecting assembly and a bed rail, which relates to the technical field of bed rails. The bed rail connecting assembly includes a first rail connecting piece, a second rail connecting piece and a locking assembly. When the locking assembly is at the locked position, the locking assembly is configured to limit the first rail connecting piece and the second rail connecting piece to hinder relative rotation between the first rail connecting piece and the second rail connecting piece. When the locking assembly moves to the released position under the action of an external force, the locking assembly releases the first rail connecting piece and the second rail connecting piece to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

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Classification:

A47C21/08 »  CPC main

Attachments for beds, e.g. sheet holders, bed-cover holders ; Ventilating, cooling or heating means in connection with bedsteads or mattresses Devices for prevention against falling-out, e.g. detachable sidewalls

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of bed rails, and particularly, to a bed rail connecting assembly and a bed rail.

BACKGROUND

A bed rail is a protective fence arranged on a side surface of a crib or an adult bed to prevent an infant or young child from turning over and falling off the crib while sleeping or playing, which plays a role of protecting the infant or young child.

In most cases, traditional bed rails are fixedly connected. The bed rail would occupy a large space area when being unfolded. It is very inconvenient to store the bed rail because the bed rail cannot be folded.

SUMMARY

The present disclosure aims to overcome the drawbacks and shortcomings in the prior art, and provides a bed rail connecting assembly and a bed rail. A first rail connecting piece and a second rail connecting piece are arranged between a first rail and a second rail, and a connecting state between the first rail connecting piece and the second rail connecting piece changes due to cooperation between a locking assembly and an operating member, so that the first rail and the second rail can be rotatably folded, which facilitates storage.

The technical solution of the present disclosure is as follows: A bed rail connecting assembly, including a first rail connecting piece, a second rail connecting piece, and a locking assembly, wherein the first rail connecting piece and the second rail connecting piece are rotatably connected; the locking assembly moves between a locked position and a released position; when the locking assembly is at the locked position, the locking assembly is configured to limit the first rail connecting piece and the second rail connecting piece to hinder relative rotation between the first rail connecting piece and the second rail connecting piece; and when the locking assembly moves to the released position under the action of an external force, the locking assembly releases the first rail connecting piece and the second rail connecting piece to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

Preferably, the locking assembly is movably arranged on the first rail connecting piece; the second rail connecting piece is provided with an abutment port; the abutment port is arranged at one end, close to the first rail connecting piece, of the second rail connecting piece; when the locking assembly is at the locked position, the locking assembly abuts against the abutment port to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece; and when the locking assembly moves to the released position under the action of the external force, the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

Preferably, the second rail connecting piece is provided with a second limiting portion; the first rail connecting piece is provided with a first limiting portion; and the first limiting portion is configured to abut against the second limiting portion to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece in a first rotation direction.

Preferably, the first rail connecting piece is provided with a cavity for movement. One end, corresponding to an abutment port, of the locking assembly is a first opening. The locking assembly is arranged in the cavity for movement.

Preferably, the locking assembly includes a locking member arranged in the cavity for movement and a locked position elastic member; one end of the locked position elastic member is connected to an end surface, far from the second rail connecting piece, of the locking member, and the other end is connected to an inner wall of the cavity for movement; the locked position clastic member drives the locking member to move towards the locked position; when the locking assembly is at the locked position, the locked position elastic member drives the locking member to enable the locking member to abut against the abutment port; and when the locking assembly moves to the released position under the action of the external force, the locked position elastic member undergoes elastic deformation, and the locking member is separated from the abutment port.

Preferably, the bed rail connecting assembly further includes an operating member used in conjunction with the locking member; the operating member drives the locking member to move; and when the locking member moves to the released position, the locked position clastic member undergoes elastic deformation, and the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

Preferably, the first rail connecting piece is provided with a second opening; the second opening is communicated with the cavity for movement; one end, opposite to the second opening, of the locking member is a first guide slope; one side, corresponding to the first guide slope, of the operating member is a second guide slope; the second guide slope slidably abuts against the first guide slope; and when the operating member pushes the locking member to move, the second guide slope slides along the first guide slope to enable the locking member to move towards the released position.

Preferably, the locking assembly is provided with a fixed slot; one side, corresponding to the fixed slot, of the operating member is a fixed rod; and the fixed rod is inserted into the fixed slot and moves in the fixed slot.

Preferably, the fixed rod is provided with a buckle; a limiting slot is arranged on a side wall of the cavity for movement; and the buckle slides in the limiting slot.

Preferably, one end, close to the second rail connecting piece, of the first rail connecting piece is an insertion slot; the insertion slot is communicated with the cavity for movement; lugs are arranged on two sides of the insertion slot; and a connecting end of the second rail connecting piece is arranged in the insertion slot and is rotatably connected to the lugs.

The present disclosure also provides a bed rail, including: a first rail connecting piece, a second rail connecting piece, and a locking assembly, wherein the first rail connecting piece and the second rail connecting piece are rotatably connected; the locking assembly moves between a locked position and a released position; when the locking assembly is at the locked position, the locking assembly is configured to limit the first rail connecting piece and the second rail connecting piece to hinder relative rotation between the first rail connecting piece and the second rail connecting piece; when the locking assembly moves to the released position under the action of an external force, the locking assembly releases the first rail connecting piece and the second rail connecting piece to allow the relative rotation between the first rail connecting piece and the second rail connecting piece; a first bed rail, wherein the first bed rail is connected to one end, far from the second rail connecting piece, of the first rail connecting piece; and a second bed rail, wherein the second bed rail is connected to one end, far from the first rail connecting piece, of the second rail connecting piece.

Preferably, the locking assembly is movably arranged on the first rail connecting piece; the second rail connecting piece is provided with an abutment port; the abutment port is arranged at one end, close to the first rail connecting piece, of the second rail connecting piece; when the locking assembly is at the locked position, the locking assembly abuts against the abutment port to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece; and when the locking assembly moves to the released position under the action of the external force, the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

Preferably, the second rail connecting piece is provided with a second limiting portion; the first rail connecting piece is provided with a first limiting portion; and the first limiting portion is configured to abut against the second limiting portion to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece in a first rotation direction.

Preferably, the first rail connecting piece is provided with a cavity for movement, and the locking assembly is movably arranged in the cavity for movement and moves between the locked position and the released position.

Preferably, the locking assembly includes a locking member arranged in the cavity for movement and a locked position elastic member; one end of the locked position elastic member is connected to an end surface, far from the second rail connecting piece, of the locking member, and the other end is connected to an inner wall of the cavity for movement; the locked position elastic member drives the locking member to move towards the locked position; when the locking assembly is at the locked position, the locked position elastic member drives the locking member to enable the locking member to abut against the abutment port; and when the locking assembly moves to the released position under the action of the external force, the locked position elastic member undergoes elastic deformation, and the locking member is separated from the abutment port.

Preferably, the bed rail connecting assembly further includes an operating member used in conjunction with the locking member; the operating member drives the locking member to move; and when the locking member moves to the released position, the locked position elastic member undergoes elastic deformation, and the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

Preferably, the first rail connecting piece is provided with a second opening; the second opening is communicated with the cavity for movement; one end, opposite to the second opening, of the locking member is a first guide slope; one side, corresponding to the first guide slope, of the operating member is a second guide slope; the second guide slope slidably abuts against the first guide slope; and when the operating member pushes the locking member to move, the second guide slope slides along the first guide slope to enable the locking member to move towards the released position.

Preferably, the locking assembly is provided with a fixed slot; one side, corresponding to the fixed slot, of the operating member is a fixed rod; and the fixed rod is inserted into the fixed slot and moves in the fixed slot.

Preferably, the fixed rod is provided with a buckle; a limiting slot is arranged on a side wall of the cavity for movement; and the buckle slides in the limiting slot.

Preferably, one end, close to the second rail connecting piece, of the first rail connecting piece is an insertion slot; the insertion slot is communicated with the cavity for movement; lugs are arranged on two sides of the insertion slot; and a connecting end of the second rail connecting piece is arranged in the insertion slot and is rotatably connected to the lugs.

After the adoption of the above technical solutions, the present disclosure has the beneficial effects: In the present disclosure, a first rail connecting piece and a second rail connecting piece are arranged between a first rail and a second rail, and a connecting state between the first rail connecting piece and the second rail connecting piece changes due to cooperation between a locking assembly and an operating member, so that the first rail and the second rail can be rotatably folded, which facilitates storage.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the accompanying drawings used in the embodiments. The drawings in the following description are only some embodiments of the present disclosure. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

The present disclosure is further described below in detail in combination with the accompanying drawings and embodiments.

FIG. 1 is a schematic diagram of an entire structure of the present disclosure;

FIG. 2 is a sectional view of a partial structure of a locking assembly at a locked position according to the present disclosure;

FIG. 3 is a sectional view of a partial structure of a locking assembly at a released position in a first rotation direction according to the present disclosure;

FIG. 4 is a sectional view of a partial structure in a second rotation direction corresponding to FIG. 3 according to the present disclosure;

FIG. 5 is an exploded view of a partial structure of the present disclosure;

FIG. 6 is a schematic exploded diagram corresponding to FIG. 4 according to the present disclosure;

FIG. 7 is a schematic exploded diagram of a locking assembly of the present disclosure;

FIG. 8 is a schematic structural diagram of a locking member of the present disclosure;

FIG. 9 is a sectional view of a buckle and a limiting slot according to the present disclosure;

FIG. 10 is an exploded view of an entire structure according to the present disclosure; and

FIG. 11 is a top view of a partial structure of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure is further described below in detail in combination with the accompanying drawings and embodiments.

This specific embodiment is only an explanation of the present disclosure, and it is not a limitation to the present disclosure. After reading this specification, those skilled in the art can make modifications to this embodiment that do not create any contribution as needed, but the modifications shall be protected by the patent law within the scope of the claims of the present disclosure.

This embodiment further provides a bed rail, including a bed rail connecting assembly, a first bed rail 5, and a second bed rail 6.

The bed rail connecting assembly includes: a first rail connecting piece 1, a second rail connecting piece 2, a locking assembly 3, and an operating member 4. The first rail connecting piece 1 and the second rail connecting piece 2 are rotatably connected. The locking assembly moves between a locked position and a released position. When the locking assembly is at the locked position, the locking assembly 3 can limit the first rail connecting piece 1 and the second rail connecting piece 2, so that the first rail connecting piece 1 and the second rail connecting piece 2 cannot rotate. When the locking assembly moves to the released position under the action of an external force, the locking assembly releases the first rail connecting piece 1 and the second rail connecting piece 2 to cause the first rail connecting piece 1 and the second rail connecting piece 2 to rotate relatively.

The first rail connecting piece 1 is provided with a cavity 11 for movement. The locking assembly 3 is arranged in the cavity 11 for movement. Furthermore, the locking assembly 3 can slide back and forth in the cavity 11 for movement. The locking assembly 3 moves in the cavity 11 for movement to achieve switching between the locked position and the released position to change a connecting state between the first rail connecting piece 1 and the second rail connecting piece 2. The second rail connecting piece 2 is provided with an abutment port 21. The abutment port 21 is arranged at one end, close to the first rail connecting piece 1, of the second rail connecting piece 2. When the locking assembly 3 is at the locked position, the locking assembly 3 abuts against the abutment port 21 to limit the relative rotation between the first rail connecting piece 1 and the second rail connecting piece 2. When the locking assembly 3 moves to the released position under the action of an external force, the locking assembly 3 is separated from the abutment port 21, and the locking assembly 3 moves towards a side away from the second rail connecting piece 2, so as to allow the relative rotation between the first rail connecting piece 1 and the second rail connecting piece 2.

The second rail connecting piece 2 is provided with a second limiting portion 23. The first rail connecting piece 1 is provided with a first limiting portion 19. The first limiting portion 19 is arranged on a lower side of the second limiting portion 23 and abuts against the second limiting portion 23 to hinder the relative rotation between the first rail connecting piece 1 and the second rail connecting piece 2 in a first rotation direction. The first rotation direction is the direction of the arrow in FIG. 3, and the direction of the arrow is the same as the first rotation direction. When the locking assembly 3 moves to the released position under the action of the external force, the first rail connecting piece 1 and the second rail connecting piece 2 can only rotate relatively in a second rotation direction. The second rotation direction is the direction of the arrow in FIG. 4, and the direction of the arrow is the same as the second rotation direction.

The locking assembly 3 includes a locking member 31 arranged in the cavity 11 for movement and a locked position elastic member 32. One end of the locked position elastic member 32 is connected to an end surface, far from the second rail connecting piece 2, of the locking member 31, and the other end is connected to an inner wall of the cavity 11 for movement. When the locking assembly 3 is at the locked position, an elastic reset force generated by the abutment between the locked position elastic member 32 and the inner wall of the cavity 11 for movement pushes the locking assembly 3 to abut against the abutment port. When the locking assembly 3 moves to the released position under the action of the external force, the locked position elastic member 32 is compressed to generate an elastic reset force, and the locking member 31 is separated from the abutment port 21.

The function of the operating member 4 is to push the locking member 31 to move towards the side away from the second rail connecting piece 2 under the action of the external force, and the locking member 31 is separated from the abutment port 21. The locked position elastic member 32 is compressed to generate the elastic reset force. The first rail connecting piece 1 and the second rail connecting piece 2 rotate relative to each other. If there is no operating member 4, a user needs to operate the locking member 31, the first rail connecting piece 1, and the second rail connecting piece 2 with both hands, which is very inconvenient to usc.

The first rail connecting piece 1 is also provided with a second opening 16. The second opening 16 is communicated with the cavity 11 for movement. The function of the second opening 16 is to provide insertion for the operating member 4. One end, opposite to the second opening 16, of the locking member 31 is a first guide slope 33. One side, corresponding to the first guide slope 33, of the operating member 4 is a second guide slope 42. When the operating member 4 is inserted into the second opening 16, the second guide slope 42 is in contact with the first guide slope 33. As the first guide slope 33 and the second guide slope 42 can match each other, the first guide slope 33 moves towards the end away from the second rail connecting piece 2 while the second guide slope 42 moves downwards, until the locking assembly 3 moves to the released position.

The locking assembly 3 is also provided with a fixed slot 35. A side, corresponding to the fixed slot 35, of the operating member 4 is a fixed rod 41. A size of the fixed rod 41 matches a size of the fixed slot 35. The fixed rod 41 is inserted into the fixed slot 35 and slides in the fixed slot 35. The fixed slot 35 provides a space for insertion of the fixed rod 41, which limits the fixed rod 41 to only move up and down, not horizontally, in the fixed slot 35. In this embodiment, there are two fixed slots 35 which are symmetrically arranged on two sides of the locking member 31, and there are two fixed rods 41 which respectively correspond to the fixed slots 35.

The fixed rod 41 is further provided with a buckle 43. A limiting slot 15 is arranged on a side wall of the cavity 11 for movement. When the operating member 4 is inserted into the second opening 16, the locked position elastic member 32 is compressed to generate the clastic reset force. In this case, the clastic reset force causes the locking assembly 3 to move towards a direction close to the second rail connecting piece 2. Due to the cooperation between the first guide slope 33 and the second guide slope 42, the operating member 4 will have a trend of moving upwards. In this case, the trend that the operating member 4 move upwards needs to be canceled by an external force to prevent the operating member 4 from being popped out. When the external force disappears, the operating member 4 moves upwards, and an inner wall of the limiting slot 15 abuts against the buckle 43 to cause the operating member 4 to stop moving upwards.

Through holes 12 are formed in positions, corresponding to the fixed slots 35, at a bottom of the first rail connecting piece 1. The through holes 12 are configured to insert a fixed rod 41.

An end, close to the second rail connecting piece 2, of the first rail connecting piece 1 is an insertion slot 13. The first rail connecting piece 1 and the second rail connecting piece 2 rotate around a circle center represented by a center portion of the insertion slot 13. The insertion slot 13 is communicated with the cavity 11 for movement. Lugs 14 are arranged on two sides of the insertion slot 13. A connecting end of the second rail connecting piece 2 is arranged in the insertion slot 13 and is rotatably connected to the lugs 14.

The first bed rail 5 is connected to an end, far from the second rail connecting piece 2, of the first rail connecting piece 1. The second bed rail 6 is connected to an end, far from the first rail connecting piece 1, of the second rail connecting piece 2. A first through cavity 17 is arranged in the first rail connecting piece 1. A second through cavity 24 is arranged in the second rail connecting piece 2. The first rail connecting piece 17 is configured to accommodate the first bed rail 5, and the second through cavity 24 is configured to accommodate the second bed rail 6. In this embodiment, inner diameters of both the first through cavity 17 and the second through cavity 24 are less than or equal to outer diameters of both the first bed rail 5 and the second bed rail 6, so as to facilitate insertion of the first bed rail 5 and the second bed rail 6 into the first bed rail connecting piece 1 and the second bed rail connecting piece 2, and the first bed rail 5 and the second bed rail 6 are partially connected into the first through cavity 17 and the second through cavity 24.

In this embodiment, the first bed rail 5 and the second bed rail 6 are detachably connected to the first rail connecting piece 1 and the second rail connecting piece 2. The first bed rail 5 and the first rail connecting piece 1 are respectively provided with a first screw hole 51 and a second screw hole 18. The first screw hole 51 and the second screw hole 18 are communicated with each other and have the same size. The first screw hole 51 and the second screw hole 18 are provided with first screws. The first bed rail 5 and the first rail connecting piece 1 are detachably connected through the threaded connection principle. The second bed rail 6 and the second rail connecting piece 2 are respectively provided with a third screw hole 61 and a fourth screw hole 25. The third screw hole 61 and the fourth screw hole 25 are communicated with each other and have the same size. The third screw hole 61 and the fourth screw hole 25 are provided with second screws. The second bed rail 6 and the second rail connecting piece 2 are detachably connected through the threaded connection principle. In other embodiments, the first bed rail 5, the second bed rail 6, the first rail connecting piece 1, and the second rail connecting piece 2 can also be detachably connected in any manner of snap connection, hinging, riveting, and the like.

The foregoing description is merely illustrative of the preferred embodiments of the present disclosure and is not intended to limit the present disclosure, but it is intended that any modifications, equivalents, substitutions, and modifications made within the spirit and principles of the present disclosure be embraced within the scope of the present disclosure.

Claims

What is claimed is:

1. A bed rail connecting assembly, comprising a first rail connecting piece, a second rail connecting piece, and a locking assembly, wherein the first rail connecting piece and the second rail connecting piece are rotatably connected; the locking assembly moves between a locked position and a released position;

when the locking assembly is at the locked position, the locking assembly is configured to limit the first rail connecting piece and the second rail connecting piece to hinder relative rotation between the first rail connecting piece and the second rail connecting piece; and

when the locking assembly moves to the released position under the action of an external force, the locking assembly releases the first rail connecting piece and the second rail connecting piece to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

2. The bed rail connecting assembly according to claim 1, wherein the locking assembly is movably arranged on the first rail connecting piece; the second rail connecting piece is provided with an abutment port; the abutment port is arranged at one end, close to the first rail connecting piece, of the second rail connecting piece; when the locking assembly is at the locked position, the locking assembly abuts against the abutment port to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece; and when the locking assembly moves to the released position under the action of the external force, the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

3. The bed rail connecting assembly according to claim 1, wherein the second rail connecting piece is provided with a second limiting portion; the first rail connecting piece is provided with a first limiting portion; and the first limiting portion is configured to abut against the second limiting portion to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece in a first rotation direction.

4. The bed rail connecting assembly according to claim 2, wherein the first rail connecting piece is provided with a cavity for movement, and the locking assembly is movably arranged in the cavity for movement and moves between the locked position and the released position.

5. The bed rail connecting assembly according to claim 4, wherein the locking assembly comprises a locking member arranged in the cavity for movement and a locked position elastic member; one end of the locked position elastic member is connected to an end surface, far from the second rail connecting piece, of the locking member, and the other end is connected to an inner wall of the cavity for movement; the locked position elastic member drives the locking member to move towards the locked position; when the locking assembly is at the locked position, the locked position elastic member drives the locking member to enable the locking member to abut against the abutment port; and when the locking assembly moves to the released position under the action of the external force, the locked position elastic member undergoes clastic deformation, and the locking member is separated from the abutment port.

6. The bed rail connecting assembly according to claim 5, wherein the bed rail connecting assembly further comprises an operating member used in conjunction with the locking member; the operating member drives the locking member to move; and when the locking member moves to the released position, the locked position elastic member undergoes elastic deformation, and the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

7. The bed rail connecting assembly according to claim 6, wherein the first rail connecting piece is provided with a second opening; the second opening is communicated with the cavity for movement; one end, opposite to the second opening, of the locking member is a first guide slope; one side, corresponding to the first guide slope, of the operating member is a second guide slope; the second guide slope slidably abuts against the first guide slope; and when the operating member pushes the locking member to move, the second guide slope slides along the first guide slope to enable the locking member to move towards the released position.

8. The bed rail connecting assembly according to claim 7, wherein the locking assembly is provided with a fixed slot; one side, corresponding to the fixed slot, of the operating member is a fixed rod; and the fixed rod is inserted into the fixed slot and moves in the fixed slot.

9. The bed rail connecting assembly according to claim 8, wherein the fixed rod is provided with a buckle; a limiting slot is arranged on a side wall of the cavity for movement; and the buckle slides in the limiting slot.

10. The bed rail connecting assembly according to claim 4, wherein one end, close to the second rail connecting piece, of the first rail connecting piece is an insertion slot; the insertion slot is communicated with the cavity for movement; lugs are arranged on two sides of the insertion slot; and a connecting end of the second rail connecting piece is arranged in the insertion slot and is rotatably connected to the lugs.

11. A bed rail, comprising:

a first rail connecting piece, a second rail connecting piece, and a locking assembly, wherein the first rail connecting piece and the second rail connecting piece are rotatably connected; the locking assembly moves between a locked position and a released position;

when the locking assembly is at the locked position, the locking assembly is configured to limit the first rail connecting piece and the second rail connecting piece to hinder relative rotation between the first rail connecting piece and the second rail connecting piece;

when the locking assembly moves to the released position under the action of an external force, the locking assembly releases the first rail connecting piece and the second rail connecting piece to allow the relative rotation between the first rail connecting piece and the second rail connecting piece;

a first bed rail, wherein the first bed rail is connected to one end, far from the second rail connecting piece, of the first rail connecting piece; and

a second bed rail, wherein the second bed rail is connected to one end, far from the first rail connecting piece, of the second rail connecting piece.

12. The bed rail according to claim 11, wherein the locking assembly is movably arranged on the first rail connecting piece; the second rail connecting piece is provided with an abutment port; the abutment port is arranged at one end, close to the first rail connecting piece, of the second rail connecting piece; when the locking assembly is at the locked position, the locking assembly abuts against the abutment port to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece; and when the locking assembly moves to the released position under the action of the external force, the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

13. The bed rail according to claim 11, wherein the second rail connecting piece is provided with a second limiting portion; the first rail connecting piece is provided with a first limiting portion; and the first limiting portion is configured to abut against the second limiting portion to hinder the relative rotation between the first rail connecting piece and the second rail connecting piece in a first rotation direction.

14. The bed rail according to claim 12, wherein the first rail connecting piece is provided with a cavity for movement, and the locking assembly is movably arranged in the cavity for movement and moves between the locked position and the released position.

15. The bed rail according to claim 14, wherein the locking assembly comprises a locking member arranged in the cavity for movement and a locked position elastic member; one end of the locked position elastic member is connected to an end surface, far from the second rail connecting piece, of the locking member, and the other end is connected to an inner wall of the cavity for movement; the locked position elastic member drives the locking member to move towards the locked position; when the locking assembly is at the locked position, the locked position elastic member drives the locking member to enable the locking member to abut against the abutment port; and when the locking assembly moves to the released position under the action of the external force, the locked position elastic member undergoes elastic deformation, and the locking member is separated from the abutment port.

16. The bed rail according to claim 15, wherein the bed rail connecting assembly further comprises an operating member used in conjunction with the locking member; the operating member drives the locking member to move; and when the locking member moves to the released position, the locked position elastic member undergoes elastic deformation, and the locking assembly is separated from the abutment port to allow the relative rotation between the first rail connecting piece and the second rail connecting piece.

17. The bed rail according to claim 16, wherein the first rail connecting piece is provided with a second opening; the second opening is communicated with the cavity for movement; one end, opposite to the second opening, of the locking member is a first guide slope; one side, corresponding to the first guide slope, of the operating member is a second guide slope; the second guide slope slidably abuts against the first guide slope; and when the operating member pushes the locking member to move, the second guide slope slides along the first guide slope to enable the locking member to move towards the released position.

18. The bed rail according to claim 17, wherein the locking assembly is provided with a fixed slot; one side, corresponding to the fixed slot, of the operating member is a fixed rod; and the fixed rod is inserted into the fixed slot and moves in the fixed slot.

19. The bed rail according to claim 18, wherein the fixed rod is provided with a buckle; a limiting slot is arranged on a side wall of the cavity for movement; and the buckle slides in the limiting slot.

20. The bed rail according to claim 14, wherein one end, close to the second rail connecting piece, of the first rail connecting piece is an insertion slot; the insertion slot is communicated with the cavity for movement; lugs are arranged on two sides of the insertion slot; and a connecting end of the second rail connecting piece is arranged in the insertion slot and is rotatably connected to the lugs.

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