Folding armrest and running machine

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a folding handrail and a treadmill, and the folding handrail comprises a fixed seat body, a movable seat body and a connecting rod, the movable handrail rotates around the center line of the rotating center hole through the rotating assembly; the control assembly comprises a control handle rotationally connected to the mounting cavity and a movable lifting block rotationally connected with the control handle; and the bolt assembly comprises a bolt pipe, an elastic piece and a bolt axially arranged in the bolt pipe in a sliding mode, the first end of the bolt downwards stretches out of the bolt pipe and is inserted into one bolt hole, and the second end of the bolt stretches out of the bolt pipe and is rotationally connected with the movable lifting block. According to the utility model, the unlocking switching state is convenient through the control assembly, the working state and the storage state of the movable armrest are kept by inserting the bolt into the bolt hole, the problem that the armrest part of the treadmill occupies a large space is effectively solved, and the whole treadmill is convenient to carry, store and place.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a folding handrail and a treadmill. Background Art

[0002] A treadmill is a piece of sports and fitness equipment, usually consisting of a rolling sports platform and an armrest with a control panel. Users can stand on the treadmill and perform aerobic exercises such as running, walking or brisk walking by adjusting the speed and slope, thereby performing indoor aerobic exercise.

[0003] The folding parts of the folding treadmills in the prior art are mostly at the uprights and the base frame, such as the Chinese patent documents (CN202920889U and CN202569298U). Although the problems of transportation and storage have been solved to a certain extent, the armrest assembly needs to be removed to save transportation space, which makes transportation and assembly inconvenient, and the parts become loose after multiple assemblies. Utility Model Content

[0004] The utility model aims to provide a foldable armrest and a treadmill, which effectively solves the problem that the armrest part of the treadmill occupies a large space and facilitates the transportation and storage of the entire treadmill.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Folding armrests, including:

[0007] The fixed seat body has an inclined mounting portion, the mounting portion is provided with a rotation center hole and at least two latch holes, and the latch holes are distributed at the same diameter circle position of the rotation center hole;

[0008] A movable armrest having an installation chamber that passes through from top to bottom;

[0009] A rotating assembly is arranged between the fixed seat body and the movable armrest, and the movable armrest rotates around the center line of the rotating center hole through the rotating assembly;

[0010] A control assembly, comprising a control handle rotatably connected to the installation chamber and a movable lifting block rotatably connected to the control handle;

[0011] The latch assembly comprises a latch tube fixed on the movable armrest, an elastic member extending and retracting along the axial direction of the latch tube, and a latch slidably arranged in the latch tube, wherein the elastic member acts in a direction such that the first end of the latch extends downwardly out of the latch tube and is inserted into one of the latch holes, and the second end of the latch extends out of the latch tube and is rotatably connected to the movable lifting block;

[0012] The rotation center line of the control handle relative to the movable armrest, the rotation center line of the movable lifting block relative to the control handle, and the rotation center line of the latch relative to the movable lifting block are parallel to each other, and the rotation center line of the control handle relative to the movable armrest is above and behind the rotation center line of the movable lifting block relative to the control handle.

[0013] Preferably, the two latch holes are symmetrically distributed one in front and one behind.

[0014] Preferably, the rotating assembly comprises a rotating shaft and a plane bearing, the rotating shaft is fixedly mounted on a side of the movable armrest close to the fixed seat body, and the rotating shaft is rotatably arranged in the rotating center hole through the plane bearing.

[0015] Preferably, one end of the rotating shaft extending into the rotating center hole is also connected to a limiting block.

[0016] Preferably, the latch tube has an upper opening and a lower opening connected in a straight line, the latch is a stepped shaft structure with a shoulder, the elastic member is located between the shoulder of the latch and the upper opening of the latch tube and inside the latch tube, the second end of the latch extends through the upper opening and is rotatably connected to the movable lifting block.

[0017] Preferably, the elastic member is a compression spring.

[0018] Preferably, a through hole is formed at the second end of the latch pin, and a first pin shaft is provided on the movable lifting block, and the first pin shaft is loosely fitted in the through hole.

[0019] Preferably, the movable lifting block has an F-shaped structure.

[0020] Preferably, the movable lifting block and the operating handle are movably connected via a second pin shaft.

[0021] The utility model also provides a treadmill, comprising a column and the folding armrest, wherein the fixed seat body is fixedly installed on the top of the column.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The foldable armrest of the utility model comprises a fixed seat body and a movable armrest, the movable armrest rotates relative to the fixed seat body through a rotating assembly, and the fixed seat body is also provided with a latch hole for locking the movable armrest, the movable armrest is provided with a latch assembly and a control assembly for controlling the latch displacement of the latch assembly, the control assembly is convenient for unlocking and switching states, and the working state and the storage state of the movable armrest are maintained by inserting the latch into the latch hole, and there is no need to disassemble the armrest when moving or storing, which effectively solves the problem that the armrest part of the treadmill occupies a large space and is convenient for carrying and storing the entire treadmill.

[0024] Furthermore, the control component of the utility model adopts a control handle and a movable lifting block. The control handle is rotatably set on the movable armrest, and the movable lifting block is rotatably connected to the control handle and the pin respectively. In this way, the pin can be axially displaced through the control handle, which is convenient and labor-saving to operate, and the control handle and the movable lifting block have a compact structure and take up little space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of the folding armrest of the utility model in a working state.

[0026] Figure 2 It is a structural schematic diagram of the folding armrest of the utility model in the storage state.

[0027] Figure 3 It is a structural schematic diagram of the folding armrest of the utility model.

[0028] Figure 4 It is a schematic diagram of the internal structure of the control component and the latch component of the utility model.

[0029] Figure 5 This is a front view of the folding armrest of the utility model in the working state.

[0030] Figure 6 This is a front view of the folding armrest of the utility model in the unlocked state.

[0031] Markings in the figure: 100, folding armrest; 200, column; 10, fixed seat; 11, rotating center hole; 12, latch hole; 20, movable armrest; 31, rotating shaft; 32, nut; 41, latch; 42, latch tube; 51, control handle; 52, movable lifting block; 101, first pin shaft; 102, second pin shaft; 103, third pin shaft. DETAILED DESCRIPTION

[0032] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0033] like Figure 1-Figure 6 As shown, this embodiment provides a treadmill, including a column 200 located at the front side of the treadmill and a folding armrest 100 arranged at the top of the column 200. The folding armrest 100 can present different states, such as a working state of horizontal unfolding arrangement and a storage state of upward folding arrangement.

[0034] The folding armrest 100 of this embodiment includes a fixed seat body 10 and a movable armrest 20. As one example of the fixed seat body 10, the fixed seat body 10 includes a U-shaped seat and a mounting portion located at the top of the U-shaped seat. The U-shaped seat is fixedly mounted on the top of the column 200 by welding or other conventional methods. The mounting portion faces the movable armrest 20 and is tilted. The mounting portion is provided with a rotation center hole 11 and two latch holes 12. The latch holes 12 are distributed at the same diameter circle position of the rotation center hole 11, that is, the hole spacing between each latch hole 12 and the rotation center hole 11 is the same, so that when the movable armrest 20 rotates around the center line of the rotation center hole 11, the latch 41 can still be matched and inserted into the corresponding latch hole 12. The two latch holes 12 are symmetrically distributed one in front and one in the back. When the latch 41 is inserted into the front latch hole 12, the folding armrest 100 is in a storage state, and when the latch 41 is inserted into the rear latch hole 12, the folding armrest 100 is in a working state.

[0035] A rotating assembly is provided between the movable armrest 20 and the fixed seat body 10. Specifically, the rotating assembly includes a rotating shaft 31 and a plane bearing. The rotating shaft 31 is fixedly installed on the side of the movable armrest 20 close to the fixed seat body 10. The rotating shaft 31 is rotatably set in the rotating center hole 11 through the plane bearing. The rotating shaft 31 is coaxially arranged with the rotating center hole 11, so that the movable armrest 20 can be rotated around the center line of the rotating center hole 11 through the rotating assembly.

[0036] In addition, to prevent the rotating shaft 31 from falling off from the rotating center hole 11, the rotating shaft 31 of this embodiment extends into the rotating center hole 11 and then extends into the U-shaped seat, and the end of the rotating shaft 31 has an external thread and is threadedly connected with a nut 32, and the nut 32 is used as a limit block to further limit the axial displacement of the rotating shaft 31 relative to the rotating center hole 11, thereby further enhancing the structural stability. In addition, a nylon washer can be arranged between the mounting portion and the movable armrest 20, and the nylon washer is sleeved outside the rotating shaft 31.

[0037] In this embodiment, a vertically penetrating installation chamber is provided on one side of the movable armrest 20 close to the fixed seat body 10, and a latch assembly and a control assembly are arranged in the installation chamber.

[0038] The control component includes a control handle 51 and a movable lifting block 52, and the control handle 51 is rotatably connected to the installation chamber. Specifically: a third pin hole is opened on the control handle 51, and third mounting holes are opened at the two side walls of the installation chamber corresponding to the position of the third pin hole. The third pin shaft 103 passes through the third pin hole and extends out from the third mounting holes on both sides, and then the third pin shaft 103 is restricted and fixed on the movable armrest 20 by a retaining spring, so that the control handle 51 can be rotationally controlled around the third pin shaft 103. For the convenience of operation, the control handle 51 extends out of the installation chamber. The user only needs to operate the control handle 51 to drive the control handle 51 to rotate, and then drive the movable lifting block 52 to move, thereby realizing the displacement of the pin 41 in the pin tube 42.

[0039] The movable lifting block 52 has an F-shaped structure, and the bottom of the movable lifting block 52 is rotatably connected to the control handle 51. Specifically, a second pin hole is also provided on the control handle 51, and second mounting holes are respectively provided at the positions of the movable lifting block 52 corresponding to the second pin holes. The second pin shaft 102 passes through the second pin hole and extends out from the second mounting holes on both sides, and then the second pin shaft 102 is restricted and fixed on the control handle 51 by a retaining spring. In this way, the movable lifting block 52 can adaptively rotate around the second pin shaft 102, thereby ensuring the linear lifting action of the movable lifting block 52 on the pin 41.

[0040] The latch assembly includes a latch tube 42, an elastic member and a latch 41. The latch tube 42 is fixed on the movable armrest 20 in front of the installation chamber and has an upper opening and a lower opening connected in a straight line. The aperture of the upper opening is smaller than the aperture of the lower opening, and the latch 41 is a stepped shaft structure, which can be specifically composed of a large-diameter shaft section and a small-diameter shaft section. A shoulder is formed at the junction of the large-diameter shaft section and the small-diameter shaft section. The diameter of the large-diameter shaft section matches the aperture of the latch hole 12 and is not larger than the lower opening of the latch tube 42. The large-diameter shaft section is axially slidably fitted in the latch tube 42 and extends from the lower opening, and the diameter of the small-diameter shaft section matches the aperture of the upper opening and extends through the upper opening.

[0041] The end of the large diameter shaft section away from the small diameter shaft section is the first end of the latch 41, and the end of the small diameter shaft section away from the large diameter shaft section is the second end of the latch 41. The second end of the latch 41 extends out of the latch tube 42 and is rotatably connected to the movable lifting block 52. Specifically: a through hole is provided at the second end of the latch 41, and a first pin hole is provided on the movable lifting block 52. The first pin shaft 101 is clearance-fitted with the through hole and extends out of the first pin hole, and then the first pin shaft 101 is restricted and fixed on the movable lifting block 52 by a retaining spring. In this way, the latch 41 can adaptively rotate around the first pin shaft 101 to avoid movement interference, so that the latch 41 can be lifted and returned in a straight line along the latch tube 42.

[0042] In this embodiment, the center axis of the first pin shaft 101 serves as the rotation center line of the latch 41 relative to the movable lifting block 52, the center axis of the second pin shaft 102 serves as the rotation center line of the movable lifting block 52 relative to the control handle 51, and the center axis of the third pin shaft 103 serves as the rotation center line of the control handle 51 relative to the movable armrest 20. The center axes of the first pin shaft 101, the second pin shaft 102 and the third pin shaft 103 are parallel to each other, and the rotation center line of the control handle 51 relative to the movable armrest 20 is above and behind the rotation center line of the movable lifting block 52 relative to the control handle 51. This not only realizes the linkage between the control handle 51, the movable lifting block 52 and the latch 41, but also improves the control experience and saves effort.

[0043] The elastic member is located between the axial shoulder of the latch 41 and the upper opening of the latch tube 42 and inside the latch tube 42. The elastic member is a compression spring that can be extended and retracted along the axial direction of the latch tube 42. The action direction of the elastic member causes the first end of the latch 41 to extend downward out of the latch tube 42 and insert into one of the latch holes 12.

[0044] The folding and unfolding process of the folding armrest 100 of this embodiment is as follows: in the working state, the movable armrest 20 is arranged horizontally, and the latch 41 is inserted into the lower latch hole 12. When it is to be switched to the storage state, the following unlocking process is performed: push the control handle 51 forward, so that the control handle 51 rotates forward and upward around the third pin shaft 103 and drives the movable lifting block 52 to rotate backward and upward around the second pin shaft 102, and at the same time, the latch 41 rotates around the first pin shaft 101 and is pulled upward along the axial direction of the latch tube 42, thereby releasing the plug-in relationship between the latch 41 and the latch hole 12. At this time, the movable armrest 20 can be rotated 180 degrees around the rotating shaft 31 to the upper latch hole 12, and the control handle 51 is released. The latch 41 is inserted into the upper latch hole 12 to achieve plug-in limit, and it is in the storage state of folding upward. On the contrary, when switching from the storage state to the working state, after executing the unlocking process as above, the movable armrest 20 is rotated to the lower latch hole 12, the control handle 51 is released, and the latch 41 is inserted into the lower latch hole 12 to achieve the plug-in limit.

[0045] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. Folding armrest, characterized in that: include: The fixed seat body has an inclined mounting portion, the mounting portion is provided with a rotation center hole and at least two latch holes, and the latch holes are distributed at the same diameter circle position of the rotation center hole; A movable armrest having an installation chamber that passes through from top to bottom; A rotating assembly is arranged between the fixed seat body and the movable armrest, and the movable armrest rotates around the center line of the rotating center hole through the rotating assembly; A control assembly, comprising a control handle rotatably connected to the installation chamber and a movable lifting block rotatably connected to the control handle; The latch assembly comprises a latch tube fixed on the movable armrest, an elastic member extending and retracting along the axial direction of the latch tube, and a latch slidably arranged in the latch tube, wherein the elastic member acts in a direction such that the first end of the latch extends downwardly out of the latch tube and is inserted into one of the latch holes, and the second end of the latch extends out of the latch tube and is rotatably connected to the movable lifting block; The rotation center line of the control handle relative to the movable armrest, the rotation center line of the movable lifting block relative to the control handle, and the rotation center line of the latch relative to the movable lifting block are parallel to each other, and the rotation center line of the control handle relative to the movable armrest is above and behind the rotation center line of the movable lifting block relative to the control handle.

2. The folding armrest according to claim 1, characterized in that: The two latch holes are symmetrically distributed one in front and one in the back.

3. The folding armrest according to claim 1, characterized in that: The rotating assembly comprises a rotating shaft and a plane bearing. The rotating shaft is fixedly mounted on a side of the movable armrest close to the fixed seat body, and the rotating shaft is rotatably arranged in the rotating center hole through the plane bearing.

4. The folding armrest according to claim 3, characterized in that: One end of the rotating shaft extending into the rotating center hole is also connected to a limiting block.

5. The folding armrest according to claim 1, characterized in that: The latch tube has an upper opening and a lower opening connected in a straight line. The latch is a stepped shaft structure with a shoulder. The elastic member is located between the shoulder of the latch and the upper opening of the latch tube and inside the latch tube. The second end of the latch extends out through the upper opening and is rotatably connected to the movable lifting block.

6. The folding armrest according to claim 5, characterized in that: The elastic member is a compression spring.

7. The folding armrest according to claim 5, characterized in that: A through hole is formed at the second end of the latch pin, and a first pin shaft is provided on the movable lifting block, and the first pin shaft is loosely fitted in the through hole.

8. The folding armrest according to claim 1, characterized in that: The movable lifting block has an F-shaped structure.

9. The folding armrest according to claim 1, characterized in that: The movable lifting block is movably connected to the operating handle via a second pin shaft.

10. A treadmill, characterized in that: It comprises a column and a folding armrest as claimed in any one of claims 1 to 9, wherein the fixed seat body is fixedly installed on the top of the column.

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