Stair Climber with Adjustable Slope

Description

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of Chinese Patent Application No. 202422950111.0 filed on Dec. 2, 2024, the contents of which are incorporated herein by reference in their entirety.

TECHNICAL FIELD

The application relates to the technical field of stair climbers, and in particular to a stair climber with an adjustable slope.

BACKGROUND

During fitness training, fitness equipment is required for auxiliary exercise. A stair-climbing simulation fitness apparatus (stair climber) belongs to a type of fitness equipment. However, when using existing stair-climbing simulation fitness apparatuses, a slope for stair climbing cannot be adjusted or is inconvenient to adjust. Functions are single, which fail to meet different fitness needs of users, resulting in poor use experience.

SUMMARY

In order to solve at least one aspect of the foregoing problems, the application provides a stair climber with an adjustable slope, including: an inclined support frame and a pedal frame assembly. where lower ends of both the support frame and the pedal frame assembly are used for support on a ground, and a sliding sleeve is fixedly arranged at an upper end of the pedal frame assembly, the sliding sleeve slidably sleeves the support frame, a positioning mechanism is arranged between the sliding sleeve and the support frame, the positioning mechanism includes a first positioning hole, a second positioning hole, and a positioning pin, the first positioning hole is formed in the support frame, a plurality of first positioning holes are provided and distributed in a length direction of the support frame, the second positioning hole is formed in the sliding sleeve, and the positioning pin is detachably connected to the first positioning hole; and during positioning, the second positioning hole is aligned with one of the first positioning holes, and the positioning pin penetrates through the second positioning hole and is correspondingly connected to the aligned first positioning hole. The stair climber with an adjustable slope according to the application can correspondingly adjust the stair-climbing slope and a position of a handlebar according to exercise demands, has a plurality of exercise modes to meet different exercise demands, features convenient adjustment operations, and provides excellent use experience.

Optionally, one end of the positioning pin is provided with a rotating handle, the positioning pin is in threaded connection with the first positioning hole, the positioning pin is provided with external threads, and the first positioning hole is internally provided with internal threads corresponding to the external threads.

Optionally, the sliding sleeve is connected to a first hinge shaft, the pedal frame assembly is provided with a hinge bracket hinged to the first hinge shaft, a connecting plate is arranged on the first hinge shaft, the connecting plate is provided with a first through hole, the pedal frame assembly is provided with a first threaded hole and a first hand-tightened bolt, one end of the first hand-tightened bolt penetrates through the first through hole and is in threaded connection with the first threaded hole, and the first through hole is an oblong hole.

Optionally, the pedal frame assembly includes a pedal bracket and two pedal components slidably arranged on the pedal bracket, the pedal component includes a sliding frame and a pedal, the sliding frame is slidably arranged on the pedal bracket, the pedal is hinged to the sliding frame through a second hinge shaft, a positioning latch is detachably inserted between the pedal and the sliding frame, the sliding frame is provided with a second through hole corresponding to the positioning latch, the pedal is provided with a third through hole corresponding to the positioning latch, a plurality of third through holes are provided and distributed along a circular arc trajectory, a circle center of the circular arc trajectory coincides with an axis of the second hinge shaft, one of the third through holes is aligned with the second through hole, and the positioning latch penetrates through the second through hole and the aligned third through hole to position the pedal and the sliding frame.

Optionally, one end of the positioning latch is provided with a spring-loaded positioning ball, and an other end of the positioning latch is provided with a pull ring.

Optionally, the sliding frame is rotatably provided with a first roller and a second roller, the first rollers is arranged on an upper side of the pedal bracket, and the second roller is arranged on a lower side of the pedal bracket.

Optionally, the pedal bracket includes two parallel support rods, two sliding frames are provided and are respectively arranged on the two support rods, an upper portion of the support rod is provided with a connecting column and a rotatable third roller, a lower portion of the support rod is rotatably provided with a fourth roller, an elastic rope is arranged on the support rod, one end of the elastic rope is connected to the connecting column and an other end of the elastic rope is wound around the fourth roller before being connected to the sliding frame, a rigid rope is arranged between the two support rods, and one end of the rigid rope is connected to one of the sliding frames and is wound around the two third rollers before being connected to the other sliding frame.

Optionally, an upper portion of the support frame is provided with a connecting rod and a handlebar, the connecting rod is connected between the support frame and the handlebar, a lower portion of the handlebar is hinged to an upper portion of the connecting rod, the handlebar is provided with a fourth through hole and a fifth through hole, the connecting rod is provided with a second threaded hole corresponding to the fourth through hole and a third threaded hole corresponding to the fifth through hole, a second hand-tightened bolt is detachably arranged on the connecting rod, and when the fourth through hole is aligned with the second threaded hole, the second hand-tightened bolt penetrates through the fourth through hole and is in threaded connection with the second threaded hole; and when the fifth through hole is aligned with the third threaded hole, the second hand-tightened bolt penetrates through the fifth through hole and is in threaded connection with the third threaded hole.

Optionally, a lower portion of the connecting rod is hinged to the upper portion of the support frame, and the connecting rod and the support frame are positioned by a third hand-tightened bolt.

Optionally, a lower end of the support frame is provided with first universal feet, and a lower end of the pedal frame assembly is provided with second universal feet.

Compared with the prior art, the stair climber with an adjustable slope according to the application can correspondingly adjust the stair-climbing slope and the position of the handlebar according to exercise demands, features convenient adjustment operations, and provides excellent use experience. At various stair-climbing slopes, the pedals can be adjusted to a horizontal state according to the exercise demands for stable stepping. One end of the positioning latch is provided with the spring-loaded positioning ball. The positioning latch is positioned through the spring-loaded positioning ball after being inserted, thereby preventing accidental detachment of the positioning latch and ensuring reliable use. The other end of the positioning latch is provided with the pull ring, and the pull ring facilitates disassembly of the positioning latch. The position of the handlebar can be adjusted as required for stable support by the user. The stair climber is classified into a ladder mode, a slope mode, and a skiing mode according to the stair-climbing slope from large to small. In the ladder mode and the slope mode, the second hand-tightened bolt penetrates through the fourth through hole and is in threaded connection with the second threaded hole. In the skiing mode, the second hand-tightened bolt penetrates through the fifth through hole and is in threaded connection with the third threaded hole, and the plurality of exercise modes are achieved to meet different exercise demands. The lower end of the support frame is provided with the first universal feet, and the lower end of the pedal frame assembly is provided with the second universal feet, thereby allowing both the support frame and the pedal frame assembly to be stably supported on the ground at different stair-climbing slope levels, preventing tipping, and ensuring reliable use.

BRIEF DESCRIPTION OF FIGURES

FIG. 1 is a schematic structural diagram of a stair climber with an adjustable slope in a ladder mode according to the application;

FIG. 2 is a schematic structural diagram of a bottom of a stair climber with an adjustable slope according to the application;

FIG. 3 is an enlarged view of Part A in FIG. 2;

FIG. 4 is an enlarged view of Part B in FIG. 2;

FIG. 5 is a schematic structural diagram of first positioning holes of a stair climber with an adjustable slope according to the application;

FIG. 6 is a schematic structural diagram of a second positioning hole of a stair climber with an adjustable slope according to the application;

FIG. 7 is a schematic structural diagram of a connecting plate of a stair climber with an adjustable slope according to the application;

FIG. 8 is a schematic structural diagram of a handlebar of a stair climber with an adjustable slope according to the application;

FIG. 9 is a schematic structural diagram of a third through hole of a stair climber with an adjustable slope according to the application;

FIG. 10 is a schematic structural diagram of a stair climber with an adjustable slope in a slope mode according to the application;

FIG. 11 is a schematic structural diagram of a stair climber with an adjustable slope in a skiing mode according to the application; and

FIG. 12 is a schematic structural diagram of a positioning latch of a stair climber with an adjustable slope according to the application.

Corresponding component names for reference numerals in the figures are as follows: 1—support frame, 101—first positioning hole, 2—pedal frame assembly, 20—hinge bracket, 201—first threaded hole, 202—first hand-tightened bolt, 21—sliding sleeve, 211—second positioning hole, 212—first hinge shaft, 213—connecting plate, 2131—first through hole, 22—pedal bracket, 220—support rod, 221—connecting column, 222—third roller, 223—fourth roller, 23—sliding frame, 231—second through hole, 24—pedal, 241—third through hole, 25—second hinge shaft, 26—positioning latch, 261—spring-loaded positioning ball, 262—pull ring, 27—first roller, 28—second roller, 291—elastic rope, 292—rigid rope, 3—positioning pin, 301—rotating handle, 4—connecting rod, 41—second threaded hole, 43—second hand-tightened bolt, 5—handlebar, 51—fourth through hole, 52—fifth through hole, 6—third hand-tightened bolt, 7—first universal foot, and 8—second universal foot.

DETAILED DESCRIPTION

In order to make the foregoing objectives, features, and advantages of the application more apparent and easier to understand, specific embodiments of the application will be described in detail with reference to the accompanying drawings.

In the descriptions of the application, it should be understood that terms “upper”, “lower”, etc. indicate orientations or positional relationships based on orientations or positional relationships during the normal usage of a product.

Terms such as “first” and “second” are used merely for the purpose of description, and shall not be construed as indicating or implying relative importance or implying a quantity of indicated technical features. Therefore, the feature restricted by “first” or “second” may explicitly indicate or implicitly include at least one of such features.

Referring to FIG. 1 to FIG. 12, an embodiment of the application provides a stair climber with an adjustable slope, including: an inclined support frame 1 and a pedal frame assembly 2. Lower ends of both the support frame 1 and the pedal frame assembly 2 are used for support on a ground. A sliding sleeve 21 is fixedly arranged at an upper end of the pedal frame assembly 2, and the sliding sleeve 21 slidably sleeves the support frame 1. A positioning mechanism is arranged between the sliding sleeve 21 and the support frame 1. The positioning mechanism includes a first positioning hole 101, a second positioning hole 211, and a positioning pin 3. The first positioning hole 101 is formed in the support frame 1. A plurality of first positioning holes 101 are provided and distributed in a length direction of the support frame 1. The second positioning hole 211 is formed in the sliding sleeve 21. The positioning pin 3 is detachably connected to the first positioning hole 101. In this embodiment, three first positioning holes 101 are provided, located in an upper portion, a middle portion, and a lower portion of the support frame 1 respectively, thereby achieving three-level adjustment of the stair-climbing slope as required. During positioning, the second positioning hole 211 is aligned with one of the first positioning holes 101, and the positioning pin 3 penetrates through the second positioning hole 211 and is correspondingly connected to the aligned first positioning hole 101. The stair climber with an adjustable slope according to the application can correspondingly adjust the stair-climbing slope and a position of a handlebar according to exercise demands, has a plurality of exercise modes to meet different exercise demands, features convenient adjustment operations, and provides excellent use experience.

Referring to FIG. 1 to FIG. 9, one end of the positioning pin 3 is provided with a rotating handle 301 for convenient disassembly and assembly during adjustment, facilitating operations. The positioning pin 3 is in threaded connection with the first positioning hole 101, the positioning pin 3 is provided with external threads, and the first positioning hole 101 is internally provided with internal threads corresponding to the external threads. The sliding sleeve 21 is connected to a first hinge shaft 212, and the pedal frame assembly 2 is provided with a hinge bracket 20 hinged to the first hinge shaft 212. A connecting plate 213 is arranged on the first hinge shaft 212, and the connecting plate 213 is provided with a first through hole 2131. The pedal frame assembly 2 is provided with a first threaded hole 201 and a first hand-tightened bolt 202. One end of the first hand-tightened bolt 202 penetrates through the first through hole 2131 and is in threaded connection with the first threaded hole 201. The first through hole 2131 is an oblong hole, thereby allowing adaptive rotation between the sliding sleeve 21 and the pedal frame assembly 2 during stair-climbing slope adjustment. The pedal frame assembly 2 includes a pedal bracket 22 and two pedal components slidably arranged on the pedal bracket 22. The pedal components are used for simulating stair-climbing actions by stepping on with the left and right feet of the user. The pedal component includes a sliding frame 23 and a pedal 24. The sliding frame 23 is slidably arranged on the pedal bracket 22, and the pedal 24 is hinged to the sliding frame 23 through a second hinge shaft 25. A positioning latch 26 is detachably inserted between the pedal 24 and the sliding frame 23. The sliding frame 23 is provided with a second through hole 231 corresponding to the positioning latch 26, and the pedal 24 is provided with a third through holes 241 corresponding to the positioning latch 26. A plurality of third through holes 241 are provided and distributed along a circular arc trajectory. A circle center of the circular arc trajectory coincides with an axis of the second hinge shaft 25. One of the third through holes 241 is aligned with the second through hole 231, and the positioning latch 26 penetrates through the second through hole 231 and the aligned third through hole 241 to position the pedal 24 and the sliding frame 23. At various stair-climbing slopes, the pedal 24 can be adjusted to a horizontal state according to exercise demands for stable stepping. In this embodiment, three third through holes 241 are provided, corresponding to three different modes respectively.

Referring to FIG. 9 and FIG. 12, one end of the positioning latch 26 is provided with a spring-loaded positioning ball 261. The positioning latch 26 is positioned through the spring-loaded positioning ball 261 after being inserted, thereby preventing accidental detachment of the positioning latch 26 and ensuring reliable use. An other end of the positioning latch 26 is provided with a pull ring 262, and the pull ring facilitates disassembly of the positioning latch 26. The sliding frame 23 is rotatably provided with a first roller 27 and a second roller 28. In this embodiment, two first rollers 27 are provided, and the two first rollers 27 and the second roller 28 are distributed in a triangular vertex position, providing a stable and reliable structure. The first rollers 27 are arranged on an upper side of the pedal bracket 22, and the second roller 28 is arranged on a lower side of the pedal bracket 22, ensuring smooth sliding of the sliding frame.

Referring to FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 9, the pedal bracket 22 includes two parallel support rods 220. The two sliding frames 23 are provided and are respectively arranged on the two support rods 220. An upper portion of the support rod 220 is provided with a connecting column 221 and a rotatable third roller 222. A lower portion of the support rod 220 is rotatably provided with a fourth roller 223. An elastic rope 291 is arranged on the support rod 220, one end of the elastic rope 291 is connected to the connecting column 221 and an other end of the elastic rope 291 is wound around the fourth roller 223 before being connected to the sliding frame 23. A rigid rope 292 is arranged between the two support rods 220, one end of the rigid rope 292 is connected to one of the sliding frames 23 and is wound around two third rollers 222 before being connected to the other sliding frame 23. The rigid rope 292 can allow the two pedals to alternately slide up and down, simulating the stair-climbing actions. The elastic rope 291 exerts a downward diagonal elastic force on the sliding frame, keeping the rigid rope 292 in a tensioned state and improving the continuity of the stair-climbing actions.

Referring to FIG. 1, FIG. 2, FIG. 7, and FIG. 8, an upper portion of the support frame 1 is provided with a connecting rod 4 and a handlebar 5. The handlebar 5 facilitates hand support for a user to maintain balance when the user takes the stair-climbing exercise, ensuring use safety. The connecting rod 4 is connected between the support frame 1 and the handlebar 5. A lower portion of the handlebar 5 is hinged to an upper portion of the connecting rod 4. The handlebar 5 is provided with a fourth through hole 51 and a fifth through hole 52. The connecting rod 4 is provided with a second threaded hole 41 corresponding to the fourth through hole 51 and a third threaded hole 42 corresponding to the fifth through hole 52. A second hand-tightened bolt 43 is detachably arranged on the connecting rod 4. When the fourth through hole 51 is aligned with the second threaded hole 41, the second hand-tightened bolt 43 penetrates through the fourth through hole 51 and is in threaded connection with the second threaded hole 41. When the fifth through hole 52 is aligned with the third threaded hole 42, the second hand-tightened bolt 43 penetrates through the fifth through hole 52 and is in threaded connection with the third threaded hole 42, thereby allowing adjustment of a position of the handlebar 5 as required for stable support by the user. The stair climber is classified into a ladder mode, a slope mode, and a skiing mode according to the stair-climbing slope from large to small. In the ladder mode and the slope mode, the second hand-tightened bolt 43 penetrates through the fourth through hole 51 and is in threaded connection with the second threaded hole 41. In the skiing mode, the second hand-tightened bolt 43 penetrates through the fifth through hole 52 and is in threaded connection with the third threaded hole 42. A lower portion of the connecting rod 4 is hinged to the upper portion of the support frame 1, and the connecting rod 4 and the support frame 1 are positioned by a third hand-tightened bolt 6. After disassembling the third hand-tightened bolt 6, the connecting rod 4 and the support frame 1 can be rotated and folded to facilitate storage.

Referring to FIG. 1, a lower end of the support frame 1 is provided with first universal feet 7, and a lower end of the pedal frame assembly 2 is provided with second universal feet 8, thereby allowing both the support frame 1 and the pedal frame assembly 2 to be stably supported on the ground at different stair-climbing slope levels, preventing tipping, and ensuring reliable use.

The stair climber with an adjustable slope according to the application can correspondingly adjust the stair-climbing slope and the position of the handlebar according to exercise demands, features convenient adjustment operations, and provides excellent use experience. At various stair-climbing slopes, the pedals can be adjusted to the horizontal state according to the exercise demands for stable stepping. One end of the positioning latch is provided with the spring-loaded positioning ball. The positioning latch is positioned through the spring-loaded positioning ball after being inserted, thereby preventing accidental detachment of the positioning latch and ensuring reliable use. The other end of the positioning latch is provided with the pull ring, and the pull ring facilitates disassembly of the positioning latch. The position of the handlebar can be adjusted as required for stable support by the user. The stair climber is classified into the ladder mode, the slope mode, and the skiing mode according to the stair-climbing slope from large to small. In the ladder mode and the slope mode, the second hand-tightened bolt penetrates through the fourth through hole and is in threaded connection with the second threaded hole. In the skiing mode, the second hand-tightened bolt penetrates through the fifth through hole and is in threaded connection with the third threaded hole, and the plurality of exercise modes are achieved to meet different exercise demands. The lower end of the support frame is provided with the first universal feet, and the lower end of the pedal frame assembly is provided with the second universal feet, thereby allowing both the support frame and the pedal frame assembly to be stably supported on the ground at different stair-climbing slope levels, preventing tipping, and ensuring reliable use.

The foregoing descriptions are only preferred implementations of the application. It should be noted that those of ordinary skill in the art may also make several improvements and modifications without departing from the technical principles of the application, and such improvements and modifications should also be considered as the protection scope of the application.