Foldable pedal structure and stair machine

Abstract

The foldable pedal structure comprises a connecting base and a pedal assembly, the front side of the connecting base and the front side of the pedal assembly are hinged together, the pedal assembly is located above the connecting base, supporting legs are supported between the connecting base and the pedal assembly, the supporting legs support the pedal assembly upwards so that an included angle can be formed between the pedal assembly and the connecting base, and the pedal assembly is connected with the connecting base. The supporting leg is provided with a first end and a second end which are used for supporting the connecting base and the pedal assembly respectively, the first end of the supporting leg is hinged to one of the connecting base and the pedal assembly, and the second end of the supporting leg is detachably connected to the other one of the connecting base and the pedal assembly. After the second ends of the supporting legs are disconnected, the pedal assembly can rotate and be folded relative to the connecting base, and therefore a better folding effect is achieved.

Description

Technical Field

[0001] The utility model relates to a stair climber, in particular to a foldable footrest structure and a stair climber. Background Art

[0002] At present, people pay more and more attention to their physical health, and therefore pay more and more attention to fitness exercises. Among them, mountain climbing is a good fitness exercise. However, outdoor fitness is subject to weather, environment or time restrictions. At present, there are various fitness equipment for people to use indoors, such as stair machines. Exercisers step on the pedals on both sides with their feet alternately to exert force to form an upward climbing movement state, simulating climbing stairs and mountain climbing.

[0003] For example, the stair climbing fitness device disclosed in Chinese utility model patent CN201143357Y specifically includes: a bracket, an inclined guide rail set on the bracket, left and right foot pedal assemblies, an elastic assembly and a linkage mechanism that can link the left and right foot pedal assemblies. The bracket includes a front bracket and a rear bracket pivotally connected together at the upper ends. The front bracket is provided with four support rods, which are divided into two groups on the left and right. The inclined guide rails are placed on the inner sides of the two support rods in the same group. The left and right foot pedal assemblies are provided with a foot pedal, and the bottom of the foot pedal is provided with a first shaft rod. The two ends of the first shaft rod are respectively connected to a pulley, and the pulley is slid in the guide rail; one end of the elastic assembly is connected to the bottom of the bracket, and the other end is connected to the left and right foot pedal assemblies.

[0004] The existing stair climbing fitness equipment has the following problems: when the front and rear brackets are folded, the left and right foot pedal assemblies themselves cannot be folded and are always in an unfolded state for pedaling. The unfolded left and right foot pedal assemblies protrude from the front bracket, affecting the overall folding effect. Utility Model Content

[0005] Based on the fact that when the front and rear supports of the above-mentioned stair climbing fitness machine are folded, the foot pedal assembly itself cannot be folded, and the unfolded foot pedal assembly protrudes from the front support, affecting the overall folding effect, the utility model provides a foldable foot pedal structure and a stair machine having the foot pedal structure.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a foldable footrest structure, including a connecting seat and a pedal assembly hinged together at the front side, the pedal assembly is located above the connecting seat, and a supporting foot is supported between the connecting seat and the pedal assembly, the supporting foot props up the pedal assembly upward to form an angle between the pedal assembly and the connecting seat, the supporting foot has a first end and a second end for supporting the connecting seat and the pedal assembly respectively, the first end of the supporting foot is hinged to one of the connecting seat and the pedal assembly, and the second end of the supporting foot is detachably connected to the other of the connecting seat and the pedal assembly, and after the second end of the supporting foot is disconnected, the pedal assembly can be rotated and folded relative to the connecting seat.

[0007] A further preferred technical solution of the present invention is: the pedal assembly includes a pedal fixing seat, the first end of the supporting foot is hinged to the bottom of the rear side of the pedal fixing seat, and the second end of the supporting foot is detachably connected to the top surface of the connecting seat.

[0008] A further preferred technical solution of the present invention is: a positioning protrusion is provided at the second end of the supporting foot, a positioning hole corresponding to the positioning protrusion is provided on the top surface of the connecting seat, and the positioning protrusion is inserted into the positioning hole to connect the second end of the supporting foot to the connecting seat.

[0009] A further preferred technical solution of the present invention is: a connecting plate extending laterally is provided on the second end of the supporting leg, a first connecting hole is provided on the connecting plate, and a second connecting hole is correspondingly provided on the top surface of the connecting seat. When the second end of the supporting leg is supported on the top surface of the connecting seat, the first connecting hole and the second connecting hole are docked, and the screw passes through the first connecting hole and is threadedly connected to the second connecting hole.

[0010] A further preferred technical solution of the present invention is: when the supporting foot is supported between the connecting seat and the pedal assembly, the supporting foot is perpendicular to the top surface of the connecting seat, and the connecting plate is parallel to the top surface of the connecting seat.

[0011] A further preferred technical solution of the present invention is: both sides of the footrest fixing seat have side edges extending downward, the front side of the connecting seat is inserted between the two side edges, and is hinged to the front sides of the two side edges through a first hinge shaft, the first end of the supporting foot is inserted between the two side edges, and is hinged to the rear sides of the two side edges through a second hinge shaft, and an accommodating space is formed between the two side edges. In the folded state, the footrest fixing seat rotates relative to the connecting seat to the top of the connecting seat and covers the accommodating space.

[0012] A further preferred technical solution of the present invention is that when in the folded state, the connecting seat is located between the first hinge shaft and the second hinge shaft.

[0013] A further preferred technical solution of the present invention is: the positioning protrusion is extended along the length direction of the supporting foot and is arranged at the second end of the supporting foot, there are two positioning protrusions, and the top surface of the connecting seat is provided with positioning holes with the same number as the positioning protrusions.

[0014] A further preferred technical solution of the present invention is: a first roller group and a second roller group are installed on the connecting seat, and a slideway for the slide bar of the stair machine to pass through is formed between the first roller group and the second roller group.

[0015] Another topic: stair climbers, including foldable footrest structures.

[0016] Compared with the prior art, the advantage of the present invention is that the front sides of the connecting seat and the pedal assembly are hinged together, and a supporting foot is supported between the connecting seat and the pedal assembly, the first end of the supporting foot is hinged to one of the connecting seat and the pedal assembly, and the second end of the supporting foot is detachably connected to the other of the connecting seat and the pedal assembly. This patent can release the support of the supporting foot on the pedal assembly by disconnecting the second end of the supporting foot, so that the pedal assembly can be rotated relative to the connecting seat to fold the foot structure, so that the stair machine can achieve a better folding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0018] Figure 1 Schematic diagram of the overall structure of the stair machine;

[0019] Figure 2 This is an exploded view of the pedal structure;

[0020] Figure 3 This is an overall schematic diagram of the pedal structure in the unfolded state;

[0021] Figure 4 for Figure 3 Schematic cross-section diagram;

[0022] Figure 5 A diagram showing the state of the pedal structure when the second end of the supporting foot is disconnected from the connecting seat;

[0023] Figure 6 It is a schematic diagram of the pedal structure in a folded state;

[0024] Figure 7 for Figure 6 Schematic cross-section diagram.

[0025] In the figure: 1. Foot pedal; 2. Foot pedal fixing seat; 3. Front bracket; 4. Sliding rod; 5. Rear bracket; 6. Second roller group; 7. First roller group; 8. Connecting seat; 9. Accommodating space; 10. Side; 11. Top surface; 12. Second connecting hole; 13. Positioning hole; 14. Support foot; 15. Positioning protrusion; 16. Connecting plate; 17. First connecting hole; 18. Screw; 19. First hinge axis; 20. Second hinge axis; 21. First end; 22. Second end. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0028] Figure 1-Figure 7 As shown, the stair machine includes a bracket and a footrest structure. The bracket includes a front bracket 3 and a rear bracket 5. The upper end of the front bracket 3 is pivotally connected to the rear bracket 5 so that the front bracket 3 and the rear bracket 5 can be opened to both sides or folded toward the middle. The front bracket 3 includes two sliding bars 4 set on the left and right. The two footrest structures are respectively slidably set on the two sliding bars 4 for the user to step on them alternately for exercise.

[0029] The difference of this patent lies in the improvement of the footrest structure so that the footrest structure can be folded. The other components of the stair machine are the same as the existing ones, such as the elastic component and the linkage mechanism that can link the two footrest structures. This embodiment will not be elaborated in detail.

[0030] Figure 2-Figure 7 As shown, the pedal structure includes a connecting seat 8 and a pedal assembly hinged together at the front side. The pedal assembly is located above the connecting seat 8. The pedal assembly can be rotated downward to cover or rotated upward to unfold relative to the connecting seat 8 below. A supporting foot 14 is supported between the connecting seat 8 and the pedal assembly. The supporting foot 14 supports the pedal assembly upward to the unfolded state, so that an angle is formed between the pedal assembly and the connecting seat 8. The supporting foot 14 has a first end 21 and a second end 22 for supporting the connecting seat 8 and the pedal assembly respectively. The first end 21 of the supporting foot 14 is hinged to the connecting seat 8 and the pedal assembly. On one of them, the second end 22 of the supporting foot 14 is detachably connected to the connecting seat 8 and the other of the pedal assembly. The supporting foot 14 is supported between the pedal assembly and the connecting seat 8, so that the pedal assembly remains in an unfolded state for the user to step on. After the second end 22 of the supporting foot 14 is disconnected, the support of the supporting foot 14 on the pedal assembly is released, so that the pedal assembly can be rotated relative to the connecting seat 8 and covered on the top of the connecting seat 8, thereby realizing the overall folding of the footrest structure, so that the footrest structure will not protrude too much when the stair machine is folded, thereby achieving a better folding effect.

[0031] Figure 1As shown, preferably, the pedal assembly includes a footrest fixing seat 2 and a foot pedal 1 for stepping on, the foot pedal 1 is fixed to the top of the footrest fixing seat 2, the first end 21 of the supporting foot 14 is hinged to the bottom of the rear side of the footrest fixing seat 2, and the second end 22 of the supporting foot 14 is detachably connected to the top surface 11 of the connecting seat 8 to support the pedal assembly above.

[0032] Figure 2 、 Figure 5 As shown, the second end 22 of the supporting foot 14 is provided with a positioning protrusion 15, and a positioning hole 13 corresponding to the positioning protrusion 15 is provided on the top surface 11 of the connecting seat 8. The positioning protrusion 15 is inserted into the positioning hole 13 to form a connection between the second end 22 of the supporting foot 14 and the connecting seat 8.

[0033] Preferably, the positioning protrusion 15 is extended along the length direction of the supporting foot 14 and is arranged at the second end 22 of the supporting foot 14. There are two positioning protrusions 15, and the two positioning protrusions 15 are distributed on the left and right and are arranged on the second end 22 of the supporting foot 14. The top surface 11 of the connecting seat 8 is provided with positioning holes 13 with the same number as the positioning protrusions 15. By inserting the positioning protrusions 15 into the corresponding positioning holes 13, the second end 22 of the supporting foot 14 is connected to the connecting seat 8, so that the supporting foot 14 is supported between the pedal assembly and the connecting seat 8.

[0034] Figure 3 、 Figure 5 As shown, in order to prevent the positioning protrusion 15 from disengaging from the positioning hole 13 during use, the second end 22 of the support leg 14 is fixed to the top surface 11 of the connecting base 8 by a screw 18. Specifically, a connecting plate 16 extending laterally is provided on the second end 22 of the support leg 14. The connecting plate 16 is provided with a first connecting hole 17. The top surface 11 of the connecting base 8 is provided with a corresponding second connecting hole 12. When the second end 22 of the support leg 14 is supported on the top surface 11 of the connecting base 8, the first connecting hole 17 and the second connecting hole 12 are aligned. The screw 18 passes through the first connecting hole 17 and is threadedly connected to the second connecting hole 12, thereby fixing the second end 22 of the support leg 14 to the connecting base 8. The connecting plate 16 is located between the two positioning protrusions 15.

[0035] Figure 4 As shown, preferably, when the supporting foot 14 is supported between the connecting seat 8 and the pedal assembly, the supporting foot 14 is perpendicular to the top surface 11 of the connecting seat 8, and the connecting plate 16 is parallel to the top surface 11 of the connecting seat 8, which facilitates the installation of the screw 18.

[0036] Figure 2 、 Figure 3 、 Figure 6As shown, both sides of the pedal fixing seat 2 have side edges 10 extending downward, the front side of the connecting seat 8 is inserted between the two side edges 10, and is hinged to the front sides of the two side edges 10 through a first hinge shaft 19, the first end 21 of the supporting foot 14 is inserted between the two side edges 10, and is hinged to the rear sides of the two side edges 10 through a second hinge shaft 20, and an accommodating space 9 is formed between the two side edges 10. When in the folded state, the pedal fixing seat 2 is rotated downward relative to the connecting seat 8 until the top of the connecting seat 8 is covered in the accommodating space 9, so as to achieve a better folding effect and make the pedal structure smaller in size after folding.

[0037] Figure 6 、 Figure 7 As shown, preferably, in the folded state, the connecting seat 8 is located between the first hinge axis 19 and the second hinge axis 20.

[0038] Figure 1 As shown, the first roller group 7 and the second roller group 6 are installed on the connecting seat 8, and a slideway is formed between the first roller group 7 and the second roller group 6 for the slide bar 4 of the stair machine to pass through. The first roller group 7 and the second roller group 6 are slidably arranged on the upper and lower sides of the slide bar 4, and the connecting seat 8 is slidably connected to the slide bar 4, and the connecting seat 8 can slide up and down along the slide bar 4.

[0039] When the stair climber needs to be folded, the front bracket 3 and the rear bracket 5 are rotated toward the middle to fold up, and then the screws 18 connecting the connecting plate 16 and the connecting seat 8 are unscrewed, and the positioning protrusion 15 of the second end 22 of the supporting foot 14 is pulled out from the positioning hole 13 on the top surface 11 of the connecting seat 8. Then, the footrest fixing base 2 is rotated downward to cover the top of the connecting seat 8, so that the top of the connecting seat 8 is accommodated in the accommodating space 9, and the folding is completed.

[0040] To sum up, the pedal structure can be divided into two states: unfolded and folded. When unfolded, the positioning protrusion of the second end 22 of the supporting foot 14 is inserted into the corresponding positioning hole 13 on the connecting seat 8, and the first connecting hole 17 of the connecting plate 16 is docked with the second connecting hole 12 and connected by screws 18. When folded, unscrew the screws 18, pull the positioning protrusion out of the positioning hole 13, and the pedal assembly is rotated downward to cover the top of the connecting seat 8.

[0041] The detachable connection structure between the support foot 14 and the connecting seat 8 of this patent is not limited to the above-mentioned connection method. Conventional detachable fixed connection methods are applicable to this patent. For example, the connection can be achieved only by plugging the positioning protrusion 15 into the positioning hole 13, or only by fixing the connecting plate 16 and the top surface 11 with screws 18, or by connecting through a pin shaft.

[0042] The above describes the foldable footrest structure and stair climber provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art may, without departing from the principles of the present invention, make various improvements and modifications to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A foldable footrest structure, characterized in that: The pedal assembly includes a connecting seat and a pedal assembly hinged together at the front side, the pedal assembly is located above the connecting seat, and a support foot is supported between the connecting seat and the pedal assembly, the support foot props up the pedal assembly upward so that an angle is formed between the pedal assembly and the connecting seat, the support foot has a first end and a second end for supporting the connecting seat and the pedal assembly respectively, the first end of the support foot is hinged to one of the connecting seat and the pedal assembly, and the second end of the support foot is detachably connected to the other of the connecting seat and the pedal assembly, and the pedal assembly can be rotated and folded relative to the connecting seat after the second end of the support foot is disconnected.

2. The foldable footrest structure according to claim 1, characterized in that: The pedal assembly includes a pedal fixing seat, a first end of the supporting foot is hinged to the bottom of the rear side of the pedal fixing seat, and a second end of the supporting foot is detachably connected to the top surface of the connecting seat.

3. The foldable footrest structure according to claim 2, characterized in that: The second end of the supporting foot is provided with a positioning protrusion, and the top surface of the connecting seat is provided with a positioning hole corresponding to the positioning protrusion. The positioning protrusion is inserted into the positioning hole to connect the second end of the supporting foot to the connecting seat.

4. The foldable footrest structure according to claim 2 or 3, characterized in that: A connecting plate extending laterally is provided on the second end of the supporting leg, and a first connecting hole is provided on the connecting plate. A second connecting hole is correspondingly provided on the top surface of the connecting seat. When the second end of the supporting leg is supported on the top surface of the connecting seat, the first connecting hole and the second connecting hole are docked, and the screw passes through the first connecting hole and is threadedly connected to the second connecting hole.

5. The foldable footrest structure according to claim 4, characterized in that: When the supporting foot is supported between the connecting seat and the pedal assembly, the supporting foot is perpendicular to the top surface of the connecting seat, and the connecting plate is parallel to the top surface of the connecting seat.

6. The foldable footrest structure according to claim 2, characterized in that: The two sides of the pedal fixing seat have side edges extending downward, the front side of the connecting seat is inserted between the two side edges, and is hinged to the front sides of the two side edges through a first hinge shaft, the first end of the supporting foot is inserted between the two side edges, and is hinged to the rear sides of the two side edges through a second hinge shaft, and an accommodating space is formed between the two side edges. In the folded state, the pedal fixing seat rotates relative to the connecting seat until the top of the connecting seat covers the accommodating space.

7. The foldable footrest structure according to claim 6, characterized in that: In the folded state, the connecting seat is located between the first hinge axis and the second hinge axis.

8. The foldable footrest structure according to claim 3, characterized in that: The positioning protrusion is extended along the length direction of the supporting foot and is arranged at the second end of the supporting foot. There are two positioning protrusions, and the top surface of the connecting seat is provided with positioning holes with the same number as the positioning protrusions.

9. The foldable footrest structure according to claim 1, characterized in that: A first roller group and a second roller group are installed on the connecting seat, and a slideway for the slide bar of the stair machine to pass through is formed between the first roller group and the second roller group.

10. Stair climbing machine, characterized in that, The invention comprises the foldable pedal structure according to any one of claims 1 to 9.

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