Hinge for folding device

Abstract

The utility model discloses a hinge for a folding device, and belongs to the field of treadmills. A hinge for a folding device comprises a first folding frame, a second folding frame and a hinge assembly, and the first folding frame and the second folding frame are connected through the hinge assembly. The hinge assembly comprises a first hinge frame, a second hinge frame, a main connecting shaft, a first crank and a second crank. A first kidney-shaped hole is formed in the first hinge frame, and a second kidney-shaped hole is formed in the second hinge frame. The first cranks and the second cranks are the same in structure, the number of the first cranks is two, the main connecting shaft penetrates through the first cranks and the second cranks, and the first cranks and the second cranks are in rotating contact relative to the main connecting shaft. The hinge for the folding device has the beneficial effects that the hinge for the folding device is provided, so that the front running board support and the rear running board support of the treadmill can be folded along the hinged position, and the occupied space of the folded treadmill in the vertical direction is small.

Description

Technical Field

[0001] The present application relates to the field of treadmills, and more particularly, to a hinge for a folding device. Background Art

[0002] Running, as a national sport for strengthening the body, enables people to exercise and relax after busy work. Treadmills can allow people to meet their running needs without leaving home, and are loved by more and more people. However, the existing treadmills are large in both volume and floor area. If the space at home is insufficient, it will affect indoor activities. Although there are various foldable treadmills on the market, most of them are only folded between the handrail and the running board or the running board is also flipped and erected, still occupying a large space and being inconvenient to store.

[0003] Now a hinge for a folding device is provided. Summary of the Utility Model

[0004] The content part of the present application is used to introduce concepts in a brief form, and these concepts will be described in detail in the following detailed implementation part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] To solve the technical problems mentioned in the above background art part, some embodiments of the present application provide a hinge for a folding device, including: a first folding frame and a second folding frame, and the first folding frame and the second folding frame form the base of the treadmill;

[0006] It is characterized in that: a hinge assembly is provided between the first folding frame and the second folding frame, and the first folding frame and the second folding frame are connected through the hinge assembly;

[0007] The hinge assembly includes: a first hinge frame, a second hinge frame, a main connecting shaft, a first crank, and a second crank;

[0008] Among them, the first hinge frame and the second hinge frame have the same structure and are symmetrically arranged. A first waist-shaped hole is provided on the first hinge frame, and a second waist-shaped hole is provided on the second hinge frame; the first crank and the second crank have the same structure and there are two first cranks and two second cranks respectively. The main connecting shaft passes through the first crank and the second crank respectively, and the first crank and the second crank are in rotational contact with the main connecting shaft respectively;

[0009] A first insertion shaft is rotatably connected to the second crank;

[0010] A second insertion shaft is rotatably connected to the first crank;

[0011] Two connecting plates are provided and are symmetrically rotatably connected to the main connecting shaft;

[0012] The third waist-shaped hole is provided at one end of the connecting plate;

[0013] The fourth waist-shaped hole is provided at the other end of the connecting plate;

[0014] The first movable shaft is rotatably connected to the first crank and the first movable shaft is slidably connected within the fourth waist-shaped hole;

[0015] The second movable shaft is rotatably connected to the second crank and the second movable shaft is slidably connected within the third waist-shaped hole.

[0016] Further, both ends of the first insertion shaft are fixedly connected to the two side walls of the first hinge frame respectively, and both ends of the second insertion shaft are fixedly connected to the two side edges of the second hinge frame respectively.

[0017] Further, there are two first waist-shaped holes which are symmetrically arranged on the first hinge frame. Both ends of the first movable shaft pass through the fourth waist-shaped holes on both sides and extend into the first waist-shaped holes on both sides. The outer arc surface of the first movable shaft is in sliding contact with the hole wall of the first waist-shaped hole.

[0018] Further, there are two second waist-shaped holes which are symmetrically arranged on the second hinge frame. Both ends of the second movable shaft pass through the third waist-shaped holes on both sides and extend into the second waist-shaped holes on both sides. The outer arc surface of the first movable shaft is in sliding contact with the hole wall of the first waist-shaped hole, and the outer arc surface of the second movable shaft is in sliding contact with the hole wall of the second waist-shaped hole.

[0019] Further, the two first cranks are arranged in a staggered manner with the two second cranks respectively, and the side wall of the first crank is in sliding contact with the side wall of the adjacent second crank.

[0020] Further, a plurality of mounting holes are provided on both the first hinge frame and the second hinge frame, and the mounting holes are symmetrically arranged on the side walls of the first hinge frame and the second hinge frame.

[0021] Further, the hinge assembly further includes:

[0022] The first protective frame is fixedly connected to the first hinge frame;

[0023] The second protective frame is fixedly connected to the second hinge frame;

[0024] Wherein, the first protective frame and the second protective frame have the same structure and the first protective frame and the second protective frame are provided with jacks corresponding to the mounting holes. The first protective frame is fixedly connected to the first folding frame by bolts, and the second protective frame is fixedly connected to the second folding frame by bolts.

[0025] Furthermore, both the first protective frame and the second protective frame are U-shaped frames. The first articulated frame is movably installed in the U-shaped space of the first protective frame, and the second articulated frame is movably installed in the U-shaped space of the second protective frame.

[0026] Furthermore, the first articulated frame and the second articulated frame are symmetrically arranged, and there is a gap between the first articulated frame and the second articulated frame that provides the first articulated frame and the second articulated frame to rotate circumferentially around the axis of the main joint shaft simultaneously.

[0027] Furthermore, through the hinge assembly, the first folding frame can be flipped relative to the second folding frame within a range of 0 - 180° around the axis of the main joint shaft.

[0028] The beneficial effect of this application is as follows: A hinge for a folding device is provided, enabling the front running board bracket and the rear running board bracket of a treadmill to be folded along the hinge joint. After folding, the treadmill occupies less space in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation to this application.

[0030] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and components are not necessarily drawn to scale.

[0031] In the drawings:

[0032] Figure 1 is the overall schematic diagram according to the embodiment of this application;

[0033] Figure 2 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the first articulated frame;

[0034] Figure 3 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the hinge assembly;

[0035] Figure 4 is Figure 3 the overall bottom view of

[0036] Figure 5 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the connecting plate;

[0037] Figure 6 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the first crank.

[0038] Reference Numerals:

[0039] 11. First folding frame; 12. Second folding frame; 13. First protective frame; 14. Second protective frame; 15. First hinge frame; 16. Second hinge frame; 17. First waist-shaped hole; 18. Second waist-shaped hole; 19. Connecting plate; 20. Third waist-shaped hole; 21. First movable shaft; 22. Second movable shaft; 23. First insertion shaft; 24. Second insertion shaft; 25. First crank; 26. Second crank; 27. Main connecting shaft; 28. Fourth waist-shaped hole; 29. Mounting hole. Detailed implementation manner

[0040] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0041] In addition, it should be noted that only parts related to the relevant invention are shown in the drawings for the convenience of description. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0042] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0043] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0044] The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0045] Refer to Figures 1-6 , A hinge for a folding device, comprising: a first folding frame 11 and a second folding frame 12;

[0046] The first folding frame 11 and the second folding frame 12 form the base of the treadmill; a hinge assembly is provided between the first folding frame 11 and the second folding frame 12, and the first folding frame 11 and the second folding frame 12 are connected through the hinge assembly; through the hinge assembly, the first folding frame 11 can be flipped relative to the second folding frame 12 within a range of 0 - 180° around the axis of its own main connecting shaft 27.

[0047] The hinge assembly includes: a first hinge frame 15, a second hinge frame 16, a main connecting shaft 27, a first crank 25, a second crank 26, a first insertion shaft 23, a second insertion shaft 24, a connecting plate 19, a first movable shaft 21, a second movable shaft 22, a first protective frame 13, and a second protective frame 14.

[0048] The first hinge frame 15 and the second hinge frame 16 have the same structure and are symmetrically arranged. There are two first waist-shaped holes 17 which are symmetrically arranged on the first hinge frame 15, and there are two second waist-shaped holes 18 which are symmetrically arranged on the second hinge frame 16.

[0049] The first crank 25 and the second crank 26 have the same structure and there are two first cranks 25 and two second cranks 26 respectively. The two first cranks 25 are arranged in a staggered manner with the two second cranks 26 respectively, and the side wall of the first crank 25 is in sliding contact with the side wall of the adjacent second crank 26. The main connecting shaft 27 penetrates through the first crank 25 and the second crank 26 respectively, and the first crank 25 and the second crank 26 are in rotational contact with the main connecting shaft 27 respectively;

[0050] The first insertion shaft 23 is rotatably connected to the second crank 26, and both ends of the first insertion shaft 23 are fixedly connected to the two side walls of the first hinge frame 15 respectively; the second insertion shaft 24 is rotatably connected to the first crank 25, and both ends of the second insertion shaft 24 are fixedly connected to the two side edges of the second hinge frame 16 respectively. There are two connecting plates 19 which are symmetrically arranged and rotatably connected to the main connecting shaft 27. A third waist-shaped hole 20 is provided at one end of the connecting plate 19, and a fourth waist-shaped hole 28 is provided at the other end of the connecting plate 19, and the third waist-shaped hole 20 and the fourth waist-shaped hole 28 are symmetrically arranged and have the same shape.

[0051] The first movable shaft 21 is rotatably connected to the first crank 25 and is slidably connected in the fourth waist-shaped hole 28. Both ends of the first movable shaft 21 pass through the fourth waist-shaped holes 28 on both sides and extend into the first waist-shaped holes 17 on both sides. The outer arc surface of the first movable shaft 21 is in sliding contact with the hole wall of the first waist-shaped hole 17. The second movable shaft 22 is rotatably connected to the second crank 26 and is slidably connected in the third waist-shaped hole 20. Both ends of the second movable shaft 22 pass through the third waist-shaped holes 20 on both sides and extend into the second waist-shaped holes 18 on both sides. The outer arc surface of the first movable shaft 21 is in sliding contact with the hole wall of the first waist-shaped hole 17, and the outer arc surface of the second movable shaft 22 is in sliding contact with the hole wall of the second waist-shaped hole 18.

[0052] A plurality of mounting holes 29 are provided on both the first hinge bracket 15 and the second hinge bracket 16, and the positions of the mounting holes 29 are symmetrically arranged on the side walls of the first hinge bracket 15 and the second hinge bracket 16. The first protective frame 13 is fixedly connected to the first hinge bracket 15, and the second protective frame 14 is fixedly connected to the second hinge bracket 16. The first protective frame 13 and the second protective frame 14 have the same structure, and both the first protective frame 13 and the second protective frame 14 are U-shaped frames. The first protective frame 13 and the second protective frame 14 are provided with insertion holes corresponding to the mounting holes 29. The first protective frame 13 is fixedly connected to the first folding frame 11 by bolts, and the second protective frame 14 is fixedly connected to the second folding frame 12 by bolts. The first hinge bracket 15 is movably installed in the U-shaped space of the first protective frame 13, and the second hinge bracket 16 is movably installed in the U-shaped space of the second protective frame 14. The first hinge bracket 15 and the second hinge bracket 16 are symmetrically arranged, and there is a gap between the first hinge bracket 15 and the second hinge bracket 16 to provide the first hinge bracket 15 and the second hinge bracket 16 to rotate circumferentially around the axis of the main connecting shaft 27 at the same time.

[0053] Working or installation process:

[0054] Splice the first folding frame 11 and the second folding frame 12, and there is a mounting groove at the splicing position of the first folding frame 11 and the second folding frame 12 to provide space for installing the hinge assembly. Place the assembled hinge assembly in the mounting groove, and insert a bolt into the insertion hole on one side of the first protective frame 13 and make the bolt sequentially pass through the mounting holes 29 on both sides of the first protective frame 13 in the hinge assembly. One end of the bolt extends out of the insertion hole on the other side of the first protective frame 13. Rotate the bolt so that the bolt extending out of the insertion hole on the other side of the first protective frame 13 is threadedly connected to and fixed to the first folding frame 11; repeat the above operation and make the second protective frame 14 and the second folding frame 12 be fixedly connected by bolts, so that the first folding frame 11 and the second folding frame 12 are connected by the hinge assembly, and the first folding frame 11 can be flipped relative to the second folding frame 12 within the range of 0-180°.

[0055] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are mutually replaced with the technical features (but not limited to) disclosed in the embodiments of the present disclosure that have similar functions to form a technical solution.

Claims

1. Hinge for a folding device, comprising: A first folding frame (11) and a second folding frame (12), and the first folding frame (11) and the second folding frame (12) form the base of the treadmill; It is characterized in that: a hinge assembly is provided between the first folding frame (11) and the second folding frame (12), and the first folding frame (11) and the second folding frame (12) are connected through the hinge assembly; The hinge assembly includes: a first hinge frame (15), a second hinge frame (16), a main connecting shaft (27), a first crank (25), and a second crank (26); Wherein, the first hinge frame (15) and the second hinge frame (16) have the same structure and are symmetrically arranged. A first waist-shaped hole (17) is provided on the first hinge frame (15), and a second waist-shaped hole (18) is provided on the second hinge frame (16); the first crank (25) and the second crank (26) have the same structure and there are two first cranks (25) and two second cranks (26) respectively. The main connecting shaft (27) penetrates through the first crank (25) and the second crank (26) respectively, and the first crank (25) and the second crank (26) are in rotational contact with the main connecting shaft (27) respectively; A first insertion shaft (23) is rotatably connected to the second crank (26); a second insertion shaft (24) is rotatably connected to the first crank (25); Two connecting plates (19) are symmetrically arranged and rotatably connected to the main connecting shaft (27); a third waist-shaped hole (20) is provided at one end of the connecting plate (19); A fourth waist-shaped hole (28) is provided at the other end of the connecting plate (19); A first movable shaft (21) is rotatably connected to the first crank (25) and the first movable shaft (21) is slidably connected in the fourth waist-shaped hole (28); A second movable shaft (22) is rotatably connected to the second crank (26) and the second movable shaft (22) is slidably connected in the third waist-shaped hole (20).

2. The hinge for a folding device according to claim 1, characterized in that: Both ends of the first insertion shaft (23) are fixedly connected to the two side walls of the first hinge frame (15), and both ends of the second insertion shaft (24) are fixedly connected to the two side edges of the second hinge frame (16).

3. The hinge for a folding device according to claim 2, characterized in that: There are two first waist-shaped holes (17) which are symmetrically arranged on the first hinge frame (15). Both ends of the first movable shaft (21) pass through the fourth waist-shaped holes (28) on both sides and extend into the first waist-shaped holes (17) on both sides. The outer arc surface of the first movable shaft (21) is in sliding contact with the hole wall of the first waist-shaped hole (17).

4. The hinge for a folding device according to claim 3, characterized in that: There are two of the second waist-shaped holes (18), which are symmetrically arranged on the second hinge bracket (16). Both ends of the second movable shaft (22) pass through the third waist-shaped holes (20) on both sides and extend into the second waist-shaped holes (18) on both sides. The outer arc surface of the first movable shaft (21) is in sliding contact with the hole wall of the first waist-shaped hole (17), and the outer arc surface of the second movable shaft (22) is in sliding contact with the hole wall of the second waist-shaped hole (18).

5. The hinge for a folding device according to claim 4, wherein: The two first cranks (25) are arranged in a staggered manner with respect to the two second cranks (26), and the side wall of the first crank (25) is in sliding contact with the side wall of the adjacent second crank (26).

6. The hinge for a folding device according to claim 1, wherein: A plurality of mounting holes (29) are provided on both the first hinge bracket (15) and the second hinge bracket (16), and the mounting holes (29) are symmetrically arranged on the side walls of the first hinge bracket (15) and the second hinge bracket (16).

7. The hinge for a folding device according to claim 6, wherein: The hinge assembly further includes: A first protective frame (13) fixedly connected to the first hinge bracket (15); a second protective frame (14) fixedly connected to the second hinge bracket (16); wherein, the first protective frame (13) and the second protective frame (14) have the same structure, and the first protective frame (13) and the second protective frame (14) are provided with insertion holes corresponding to the mounting holes (29). The first protective frame (13) is fixedly connected to the first folding frame (11) by bolts, and the second protective frame (14) is fixedly connected to the second folding frame (12) by bolts.

8. The hinge for a folding device according to claim 7, wherein: Both the first protective frame (13) and the second protective frame (14) are U-shaped frames. The first hinge bracket (15) is movably installed in the U-shaped space of the first protective frame (13), and the second hinge bracket (16) is movably installed in the U-shaped space of the second protective frame (14).

9. The hinge for a folding device according to claim 8, wherein: The first hinge bracket (15) and the second hinge bracket (16) are symmetrically arranged, and there is a gap between the first hinge bracket (15) and the second hinge bracket (16) that provides for the first hinge bracket (15) and the second hinge bracket (16) to rotate circumferentially about the axis of the main connection shaft (27) simultaneously.

10. The hinge for a folding device according to claim 9, wherein: The hinge assembly enables the first folding frame (11) to flip relative to the second folding frame (12) within a range of 0 - 180° about the axis of the main connection shaft (27).

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