Cable Puller and Exercise Device Thereof

Description

TECHNICAL FIELD

The present invention relates to the technical field of fitness equipment, in particular to a cable puller and an exercise device thereof.

BACKGROUND

In recent years, some free-weight exercises have been replaced by the use of fitness equipment. These machines usually try to simulate the movements of various free-weight exercises, and sometimes they can be used to simulate multiple exercises with a compact machine.

At present, for example, U.S. Pat. No. 9,302,139 discloses “Slidable Bar and Carriage Exercise Assembly”, which includes a Smith bar as a part of a multi-functional trainer, and uses the Smith bar instead of free weight to use optional weight stacking to resist motion resistance; another example, U.S. Pat. No. 1,152,420, discloses an “Exercise machine”, which simulates natural movements and increases the freedom of movement of some exercises in a compact machine.

The above-mentioned exercisers usually provide a limited number of available exercise programs for specific muscle groups, and the programs themselves are usually limited by the range and types of exercises that users can perform, and the functionality is relatively simple; for example, U.S. Pat. No. 8,968,164 discloses “Exercise apparatus and method with sliding handle assembly”, which has a pulley block with adjustable directions to realize exercise actions with different force postures, thus increasing the functionality of the exerciser.

Although many exercisers with multi-function and flexible use have been put forward in the prior art, users always hope that newer exercisers be provided, and they can adjust and switch exercise posture or force application angle at will according to their own needs during training.

Based on the above problems, there is a need to propose a cable puller, which has multiple degrees of freedom rotating shafts and is used to perform multiple exercise programs on a single machine to enhance the strength of the core. Users can exercise at any angle according to their own needs.

SUMMARY

The present invention provides a cable puller used for being mounted on a frame to be connected with a steel cable and comprising a pulley block, an attachment sleeve, a positioning disc, an arm seat, an arm and a pulley seat;

• • wherein the pulley seat is rotatably arranged on one end of the arm, an end of the arm far away from the pulley seat is rotatably arranged on the arm seat, and the arm is provided with a first bolt; the arm seat is provided with a plurality of insertion holes for inserting the first bolt along a rotation direction of the arm; the arm seat is circumferentially rotatably arranged in a central position of a positioning disc; the arm seat is provided with a second bolt, and the positioning disc is provided with a plurality of positioning holes arranged in a circumferential direction for inserting the second bolt; the positioning disc is fixedly arranged on an attachment sleeve; and the attachment sleeve is provided with a third bolt and can be selectively positioned to a plurality of vertical positions of the frame through the third bolt.

The present invention further provides a cable puller used for being mounted on a frame to be connected with a steel cable and comprising a pulley block, an attachment sleeve, a first steering mechanism, a second steering mechanism, an arm and a pulley seat;

• • wherein the attachment sleeve is provided with a bolt and can be selectively positioned into a plurality of vertical positions of the frame through the bolt;
  • the first steering mechanism is arranged on the attachment sleeve and is suitable for a circumferential rotation, and can be selectively positioned to a plurality of fixed rotation positions;
  • the second steering mechanism is arranged on the first steering mechanism and is suitable for rotating in a limited angle, and can be selectively positioned to a plurality of fixed rotation positions in the limited angle;
  • one end of the arm is arranged on the second steering mechanism and rotates together with the second steering mechanism; and
  • the pulley seat is rotatably arranged on one end of the arm far away from the second steering mechanism.

The present invention further provides an exercise device, comprising a frame that is fixedly arranged, a cable puller for being mounted on the frame to be connected with a steel cable and a pulley block;

• • wherein, the cable puller comprises an attachment sleeve, a positioning disc, an arm seat, an arm and a pulley seat;
  • the pulley seat is rotatably arranged on one end of the arm, an end of the arm far away from the pulley seat is rotatably arranged on the arm seat, and the arm is provided with a first bolt; the arm seat is provided with a plurality of insertion holes for inserting the first bolt along a rotation direction of the arm; the arm seat is circumferentially rotatably arranged in a central position of a positioning disc; the arm seat is provided with a second bolt, and the positioning disc is provided with a plurality of positioning holes arranged in a circumferential direction for inserting the second bolt; the positioning disc is fixedly arranged on an attachment sleeve; and the attachment sleeve is provided with a third bolt and can be selectively positioned to a plurality of vertical positions of the frame through the third bolt.

BRIEF DESCRIPTION OF DRAWINGS

In order to explain the technical scheme of this application more clearly, the drawings needed in the implementation will be briefly introduced below. Obviously, the drawings described below are only some implementations of this application. For those skilled in the art, other drawings can be obtained according to these drawings without creative work.

FIG. 1 is a schematic diagram of the overall structure of the exercise device of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the cable puller of the present invention;

FIG. 3 is another schematic diagram of the overall structure of the cable puller of the present invention;

FIG. 4 is a schematic diagram of the partial structure of the cable puller of the present invention;

FIG. 5 is a schematic structural diagram of the first steering mechanism of the cable puller of the present invention;

FIG. 6 is a schematic structural diagram of the second steering mechanism of the cable puller of the present invention;

FIG. 7 is a schematic structural diagram of the arm of the cable puller of the present invention;

FIG. 8 is a schematic structural diagram of the pulley yoke of the cable puller of the present invention.

REFERENCE SIGNS

Frame (10); Cable puller (20); Attachment sleeve (300); Pulley block (400); Positioning disc (210); Arm seat (220); Arm (230); Pulley seat (240); Pulley yoke (410); Third bolt (211); Positioning hole (212); Connecting cylinder (213); First threading hole (214); Second bolt (221); Insertion hole (222); Rotating shaft (223); Arc-shaped plate (224); Arc-shaped groove (225); Limit post (226); First bolt (231); Pillow block (232); Second threading hole (233); Third pulley (241); Fourth pulley (242); Hand pull-ring (243); Stopper (244); First pulley (411); Second pulley (412).

DESCRIPTION OF EMBODIMENTS

In the following, the technical scheme in the embodiment of the application will be clearly and completely described with reference to the drawings in the embodiment of the application. Obviously, the described embodiment is only a part of the embodiment of the application, but not the whole embodiment. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of this application.

Reference to “an example” or “an embodiment” herein means that a particular feature, structure or characteristic described in connection with an embodiment or an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

In this specification, for the sake of convenience, words and expressions indicating orientation or positional relationship such as “middle”, “upper”, “lower”, “front”, “rear”, “vertical”, “horizontal”, “top”, “inner” and “outer” are used to illustrate the positional relationship of constituent elements with reference to the attached drawings, only for the convenience of description. The positional relationship of the constituent elements is appropriately changed according to the direction of the described constituent elements. Therefore, it is not limited to the words and expressions described in the specification, and can be replaced appropriately according to the situation.

The present invention provides a cable puller 20, as shown in FIGS. 2 to 8, which is used for connecting a steel cable to a frame 10, and comprises a pulley block 400, an attachment sleeve 300, a positioning disc 210, an arm seat 220, an arm 230 and a pulley seat 240;

• • the pulley seat 240 is rotatably arranged on one end of the arm 230, and the end of the arm 230 far away from the pulley seat 240 is rotatably arranged on the arm seat 220; the arm 230 is provided with the first bolt 231, and the arm seat 220 is provided with a plurality of insertion holes 222 for inserting the first bolt 231 along the rotation direction of the arm 230, and the arm seat 220 is rotatably arranged at the central position of the positioning disc 210; the arm seat 220 is provided with a second bolt 221, and the positioning disc 210 is provided with a plurality of positioning holes 212 arranged in the circumferential direction for the second bolt 221 to be inserted; the positioning disc 210 is fixedly arranged on the attachment sleeve 300, and the attachment sleeve 300 is provided with a third bolt 211 and can be selectively positioned at a plurality of vertical positions of the frame 10 through the third bolt 211.

The shape of the attachment sleeve 300 is a hollow cuboid, and one side of the attachment sleeve 300 is provided with a pull rod. When a person holds the pull rod on the attachment sleeve 300, the attachment sleeve 300 can slide up and down on the vertical rod of the frame 10, and the vertical rod is provided with circular holes at equal intervals on the front and back. After the attachment sleeve 300 slides to the required height, the third bolt 211 passes through the attachment sleeve 300 and is inserted into the circular hole to complete the position fixation of the attachment sleeve 300.

The positioning hole 212 can be a round hole or a square hole, and the length of the third bolt 211 can be increased, so that the pin can also pass through the hole behind the attachment sleeve 300, so that the positioning disc 210 can be more firmly connected with the attachment sleeve 300.

The pulley block 400 includes a first pulley 411 and a second pulley 412, and a pulley yoke 410 is fixedly arranged on the positioning disc 210. The first pulley 411 is rotatably arranged on the pulley yoke 410, and the arm 230 is hinged with the arm seat 220 through the rotating shaft 223, and the second pulley 412 is rotatably arranged on the rotating shaft 223.

This design allows the first pulley 411 to rotate smoothly when it is pulled by the cable, which greatly reduces the frictional resistance and improves the efficiency of energy transmission. At the same time, the position and angle of the first pulley 411 are designed so that the cable can pass through in a better path to avoid unnecessary bending and wear.

As shown in FIG. 3 and FIG. 4, a rotatable connecting cylinder 213 is arranged at the center of the positioning disc 210. The connecting cylinder 213 passes through the front and back faces of the positioning disc 210, and the arm seat 220 is arranged on the connecting cylinder 213 at one end of the front face of the positioning disc 210 and rotates together with the connecting cylinder 213. The pulley yoke 410 is fixedly arranged on the back face of the positioning disc 210, and the first pulley 411 is arranged on the pulley yoke 410 corresponding to the first threading hole 214.

At the center of the positioning disc 210, a rotatable connecting cylinder 213 is designed. The arm seat 220 is arranged on the connecting cylinder 213 and rotates with the connecting cylinder 213, so that the arm seat 220 can rotate 360 degrees circumferentially on the positioning disc 210, providing more angle choices. In order to match the eccentric arrangement of the second bolt 221, a series of positioning holes 212 evenly distributed in the circumferential direction are formed in the positioning disc 210. When it is necessary to adjust the rotation position of the arm seat 220, the user only needs to pull out the second bolt 221 from the current positioning hole 212, move it to the target position along the circumferential track on the positioning disc 210 and insert it into the positioning hole 212. In this process, the close cooperation between the second bolt 221 and the positioning hole 212 ensures that the arm seat 220 can be accurately positioned to any of a plurality of preset rotation positions. This selective positioning mechanism not only improves the flexibility of the cable puller 20, but also enables users to quickly adjust the position of the arm seat 220 according to different work requirements to achieve the best effect. As shown in FIG. 5, the second bolt 221 is eccentrically arranged on the arm seat 220 relative to the rotation center of the arm seat 220, and the positioning disc 210 is provided with a plurality of positioning holes 212 arranged in the circumferential direction for the second bolt 221 to be inserted, and the arm seat 220 can be selectively positioned to any one of a plurality of rotation positions through the second bolt 221.

As shown in FIG. 5, two parallel arc-shaped plates 224 are formed on the arm seat 220. On one side of the arc-shaped plate 224, a plurality of insertion holes 222 for inserting the first bolt 231 are formed along the rotation direction of the arm 230, and on the other side of the arc-shaped plate 224, an arc-shaped groove 225 is formed. A limit post 226 is connected to the arm seat 220, and the limit post 226 is slidably arranged in the arc-shaped groove 225.

As a bridge connecting the main body of the cable puller 20 and the second pulley 412, the arm 230 has high flexibility and stability. The arm 230 is hinged with the arm seat 220 through the rotating shaft 223. This connection not only gives the arm 230 the necessary degree of freedom, but also limits its flexible swing in a certain range to adapt to different working scenes through the cooperation of the arc-shaped groove 225 and the limit post 226. It also ensures the stability of the arm 230 when it is stressed and prevents the arm 230 from loosening or being damaged due to vibration or impact.

As shown in FIGS. 6 and 7, one end of the arm 230 is provided with a pillow block 232, and a pulley seat 240 is rotatably arranged on one end of the arm 230 far away from the arm seat 220; the second pulley 412 is rotatably arranged in the middle of the rotating shaft 223, and both ends of the rotating shaft 223 extend outward and sequentially pass through the arm seat 220 and the pillow block 232, and the arm seat 220 is hinged with the pillow block 232 through the rotating shaft 223.

The axis of the connecting cylinder 213 is provided with a first threading hole 214 that passes therethrough, and the axis of the arm 230 is provided with a second threading hole 233 that passes therethrough. A third pulley 241 and a fourth pulley 242 are rotatably connected to the pulley seat 240, and a gap between the third pulley 241 and the fourth pulley 242 through which a steel cable can pass is reserved.

The cable puller also includes a steel cable, which bypasses the first pulley 411 and the second pulley 412 and passes through the first threading hole 214 and the second threading hole 233 in turn from the frame 10 and passes out between the third pulley 241 and the fourth pulley 242. As shown in FIG. 8, one end where the steel cable passes through is provided with a hand pull-ring 243, and the hand pull-ring 243 is provided with a stopper 244 for limiting the retraction of the steel cable.

The cable puller 20 is provided with a plurality of steering mechanisms, such as a steerable arm seat 220, a steerable arm seat 230 and a steerable pulley seat 240, so that the cable puller 20 has a plurality of rotating shafts with degrees of freedom, different application angles can be selected on a single machine, and different fitness equipment are arranged on the hand pull-ring 243, so that the cable puller 20 can change different application postures to carry out fitness exercises, and the core strength can be enhanced by executing a plurality of exercise programs, so that users can exercise at any angle according to their own needs.

The present invention further provides a cable puller 20, as shown in FIG. 2 to FIG. 8, which is used for being mounted on the frame 10 to be connected with a steel cable, and includes a pulley block 400, an attachment sleeve 300, a first steering mechanism, a second steering mechanism, an arm 230 and a pulley seat 240;

• • the attachment sleeve 300 is provided with a bolt and can be selectively positioned into a plurality of vertical positions of the frame 10 through the bolt;
  • the first steering mechanism is arranged on the attachment sleeve 300 and is suitable for a circumferential rotation, and can be selectively positioned to a plurality of fixed rotation positions;
  • the second steering mechanism is arranged on the first steering mechanism and is suitable for rotating in a limited angle, and can be selectively positioned to a plurality of fixed rotation positions in the limited angle;
  • one end of the arm 230 is arranged on the second steering mechanism and rotates together with the second steering mechanism; and
  • the pulley seat 240 is rotatably arranged on one end of the arm 230 far away from the second steering mechanism.

The shape of the attachment sleeve 300 is a hollow cuboid, and one side of the attachment sleeve 300 is provided with a pull rod. When a person holds the pull rod on the attachment sleeve 300, the attachment sleeve 300 can slide up and down on the vertical rod of the frame 10, and the vertical rod is provided with circular holes at equal intervals on the front and back. After the attachment sleeve 300 slides to the required height, the third bolt 211 passes through the attachment sleeve 300 and is inserted into the circular hole to complete the position fixation of the attachment sleeve 300.

As shown in FIGS. 3 and 4, the rotation plane of the first steering mechanism is spatially perpendicular to the rotation plane of the second steering mechanism, and the rotation plane of the second steering mechanism is spatially perpendicular to the rotation plane of the pulley seat 240.

As shown in FIG. 5, the first steering mechanism includes a positioning disc 210 fixedly arranged on the attachment sleeve 300 and an arm seat 220 arranged at the center of the positioning disc 210. The arm seat 220 is rotatably connected with the positioning disc 210 and can rotate circumferentially on the positioning disc 210. The arm seat 220 is provided with a second bolt 221, and the positioning disc 210 is provided with a plurality of positioning holes 212 arranged circumferentially for the insertion of the second bolt 221. The arm seat 220 positions the arm seat 220 in any one of the plurality of positioning holes 212 through the second bolt 221.

A rotatable connecting cylinder 213 is arranged at the center of the positioning disc 210. The connecting cylinder 213 passes through the front and back faces of the positioning disc 210, and the axis of the connecting cylinder 213 is provided with a first threading hole 214 that passes therethrough. The arm seat 220 is arranged at the front end of the positioning disc 210 on the connecting cylinder 213 and rotates together with the connecting cylinder 213. At the center of the positioning disc 210, a rotatable connecting cylinder 213 is designed. The arm seat 220 is arranged on the connecting cylinder 213 and rotates with the connecting cylinder 213, so that the arm seat 220 can rotate 360 degrees circumferentially on the positioning disc 210, providing more angle choices. In order to match the eccentric arrangement of the second bolt 221, a series of positioning holes 212 evenly distributed in the circumferential direction are formed in the positioning disc 210. When it is necessary to adjust the rotation position of the arm seat 220, the user only needs to pull out the second bolt 221 from the current positioning hole 212, move it to the target position along the circumferential track on the positioning disc 210 and insert it into the positioning hole 212. In this process, the close cooperation between the second bolt 221 and the positioning hole 212 ensures that the arm seat 220 can be accurately positioned to any of a plurality of preset rotation positions. This selective positioning mechanism not only improves the flexibility of the cable puller 20, but also enables users to quickly adjust the position of the arm seat 220 according to different work requirements to achieve the best effect.

In some embodiments (not shown), the positioning hole 212 can be a round hole or a square hole, and the length of the third bolt 211 can be increased, so that the pin can also pass through the hole behind the attachment sleeve 300, so that the positioning disc 210 can be more firmly connected with the attachment sleeve 300.

As shown in FIG. 6, the second steering mechanism includes a pillow block 232 arranged at one end of the arm 230, and the pillow block 232 is hinged with the arm seat 220 through a rotating shaft 223. The pillow block 232 is provided with a first bolt 231, and two parallel arc-shaped plates 224 are formed on the arm seat 220. The arc-shaped plate 224 on one side is provided with an arc-shaped groove 225, and the arm seat 220 is connected with a limit post 226. The limit post 226 is slidably arranged in the arc-shaped groove 225 to limit the rotation range of the arm 230, and the arc-shaped plate 224 on the other side is provided with a plurality of insertion holes 222 for inserting the first bolt 231 along the rotation direction of the arm 230.

As a bridge connecting the main body of the cable puller 20 and the second pulley 412, the arm 230 has high flexibility and stability. The arm 230 is hinged with the arm seat 220 through the rotating shaft 223. This connection not only gives the arm 230 the necessary degree of freedom, but also limits its flexible swing in a certain range to adapt to different working scenes through the cooperation of the arc-shaped groove 225 and the limit post 226. It also ensures the stability of the arm 230 when it is stressed and prevents the arm 230 from loosening or being damaged due to vibration or impact.

A pulley yoke 410 is fixedly arranged on the reverse side of the positioning disc 210, and the pulley block 400 includes a first pulley 411 arranged on the pulley yoke 410. Both ends of the rotating shaft 223 extend outward and are sequentially connected with the arm seat 220 and the pillow block 232, and the pulley block 400 includes a second pulley 412 rotatably arranged in the middle of the rotating shaft 223.

This design allows the first pulley 411 to rotate smoothly when it is pulled by the cable, which greatly reduces the frictional resistance and improves the efficiency of energy transmission. At the same time, the position and angle of the first pulley 411 are designed so that the cable can pass through in a better path to avoid unnecessary bending and wear.

The axis of the connecting cylinder 213 is provided with a first threading hole 214, and the axis of the arm 230 is provided with a second threading hole 233. A third pulley 241 and a fourth pulley 242 are rotatably connected to the pulley seat 240, and a gap between the third pulley 241 and the fourth pulley 242 through which a steel cable can pass is reserved.

The cable puller further includes a steel cable, which passes through the pulley block 400 in turn from the frame 10 and passes out between the third pulley 241 and the fourth pulley 242. One end through which the steel cable passes is provided with a hand pull-ring 243, and the hand pull-ring 243 is provided with a stopper 244 for limiting the retraction of the steel cable.

The cable puller 20 is provided with a plurality of steering mechanisms, such as a steerable arm seat 220, a steerable arm seat 230 and a steerable pulley seat 240, so that the cable puller 20 has a plurality of rotating shafts with degrees of freedom, different application angles can be selected on a single machine, and different fitness equipment are arranged on the hand pull-ring 243, so that the cable puller 20 can change different application postures to carry out fitness exercises, and the core strength can be enhanced by executing a plurality of exercise programs, so that users can exercise at any angle according to their own needs.

The present invention further provides an exercise device, which includes a frame 10 which is fixedly arranged, and a cable puller 20 which is used for being mounted to a steel cable to be connected to the frame 10 in any of the above embodiments, wherein a plurality of pulley seats are arranged on the frame 10, and the frame 10 can be fixed on a horizontal ground by bolts;

• • the cable puller 20 comprises a frame 10, an attachment device and a connecting steel cable. A plurality of pulley blocks 400 are arranged on the frame 10. The attachment device comprises an attachment sleeve 300, a positioning disc 210, an arm seat 220, an arm 230 and a pulley seat 240. The frame 10 is fixed on the horizontal ground by bolts, and the connecting steel cable passes through the pulley blocks 400 arranged in the frame 10, and finally passes out of the pulley seat 240 in the attachment device and is connected with the end of the handle. The shape of the attachment sleeve 300 is a hollow cuboid, and one side of the attachment sleeve 300 is provided with a pull rod. Holding the pull rod on the attachment sleeve 300, the attachment sleeve 300 can slide up and down on the vertical rod of the frame 10. Large circular holes are equidistantly arranged on the front and rear surfaces of the vertical rod, and small circular holes are equidistantly arranged on the left and right surfaces. Pulley blocks 400 are arranged on both sides of the positioning disc 210, the arm seat 220 is fixed on the outside of the pulley blocks 400 on one side of the positioning disc 210, the arm 230 is connected with the arm seat 220, and the arm 230 is connected with the pulley seat 240.

The cable puller 20 includes an attachment sleeve 300, a positioning disc 210, an arm seat 220, an arm 230 and a pulley seat 240.

The pulley seat 240 is rotatably arranged on one end of the arm 230, and the end of the arm 230 far away from the pulley seat 240 is rotatably arranged on the arm seat 220, and the arm 230 is provided with the first bolt 231; the arm seat 220 is provided with a plurality of insertion holes 222 for inserting the first bolt 231 along the rotation direction of the arm 230, and the arm seat 220 is rotatably arranged at the central position of the positioning disc 210. The arm seat 220 is provided with a second bolt 221, and the positioning disc 210 is provided with a plurality of positioning holes 212 arranged in the circumferential direction for inserting the second bolt 221. The positioning disc 210 is fixedly arranged on the attachment sleeve 300, and the attachment sleeve 300 is provided with a third bolt 211 and can be selectively positioned at a plurality of vertical positions of the frame 10 through the third bolt 211.

The exercise device further comprises a steel cable and a load, wherein the steel cable sequentially passes through the pulley block 400 along the frame 10 and goes out from the pulley seat 240, and the end where the steel cable passes out is provided with a hand pull-ring 243, and the hand pull-ring 243 is provided with a stopper 244 for limiting the steel cable from retracting into the pulley seat 240.

The cable puller 20 is provided with a plurality of steering mechanisms, such as a steerable arm seat 220, a steerable arm seat 230 and a steerable pulley seat 240, so that the cable puller 20 has a plurality of rotating shafts with degrees of freedom, different application angles can be selected on a single machine, and different fitness equipment are arranged on the hand pull-ring 243, so that the cable puller 20 can change different application postures to carry out fitness exercises, and the core strength can be enhanced by executing a plurality of exercise programs, so that users can exercise at any angle according to their own needs.

The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme composed of any combination of the above technical features. It should be pointed out that for those skilled in the art, several improvements and embellishments can be made without departing from the principle of the present invention, and these improvements and embellishments are also regarded as the protection scope of the present invention.