Arm button mechanism and fitness equipment

Abstract

The utility model relates to the technical field of fitness equipment, in particular to an arm button mechanism and fitness equipment, comprising a button, a button reset mechanism, a link mechanism and a pull rod, the button reset mechanism is used for resetting the button; the first end of the connecting rod mechanism is rotationally connected with the key base, and the key is mounted on the connecting rod mechanism; the first end of the pull rod is rotationally connected with the second end of the connecting rod mechanism, and the second end of the pull rod is connected with the arm rotation limiting mechanism. By pressing the key, the connecting rod mechanism pulls the arm rotation limiting mechanism backwards through the pull rod, so that the arm rotation limiting mechanism is separated from the gear matched with the arm rotation limiting mechanism, the operation is simple, and the structure is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to an arm key mechanism and a fitness equipment. Background Art

[0002] When the arm of the fitness equipment is not in use, it needs to be locked, and when in use, it needs to be unlocked to achieve rotation. Therefore, in order to facilitate use, a key mechanism that is easy to operate is required to achieve the above functions. Summary of the Utility Model

[0003] The utility model solves the problems in the related art, and provides an arm key mechanism and a fitness equipment. By pressing the key, the link mechanism will pull the arm rotation limiting mechanism backward through the pull rod, so that the arm rotation limiting mechanism disengages from the gear with which it cooperates. The operation is simple and the structure is reliable.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions: an arm key mechanism and a fitness equipment, including:

[0005] A key;

[0006] A key reset mechanism for resetting the key;

[0007] A link mechanism, the first end of which is rotatably connected to the key base, and the key is installed on the link mechanism;

[0008] A pull rod, the first end of which is rotatably connected to the second end of the link mechanism, and the second end of the pull rod is connected to the arm rotation limiting mechanism.

[0009] As a preferred solution, the arm rotation limiting mechanism includes a sliding engaging tooth, an engaging tooth pull shaft, an arm throat, and a return spring. The sliding engaging tooth is installed on the engaging tooth pull shaft through two steel balls. The engaging tooth pull shaft is connected to the second end of the pull rod. One end of the arm throat close to the pull rod is connected with a spring support plate. The return spring is sleeved on the pull rod and supported by the spring support plate.

[0010] As a preferred solution, the link mechanism includes a first pressing link and a first rotating link. The first pressing link is provided with a key. The first end of the first pressing link is rotatably connected to the key base. The second end of the first pressing link is rotatably connected to the first end of the first rotating link. The second end of the first rotating link is connected to the pull rod, and the third end of the first rotating link is rotatably connected to the key base.

[0011] As a preferred solution, a key installation part is formed on the first pressing link, a waist-shaped hole is formed in the key installation part, and the key is installed in the waist-shaped hole through a first spring and a link pin.

[0012] As a preferred solution, the linkage mechanism includes a second pressing link and a second rotating link, and a button is installed on the second pressing link; a first end of the second pressing link is rotatably connected to a button base, a second end of the second pressing link is rotatably connected to a first end of the second rotating link, a second end of the second rotating link is rotatably connected to a pull rod, and a third end of the second rotating link is rotatably connected to the button base.

[0013] As a preferred solution, an installation hole is formed in the second pressing link, and an installation protrusion for being installed in the installation hole is formed at the bottom of the button.

[0014] As a preferred solution, the second pressing link is a V-shaped structure formed by two support rods. A connection end of the two support rods is the first end, and separated ends of the two support rods are the second end. The first end of the second pressing link is rotatably installed on the button base through a pin shaft, and a fixing block is installed on the pin shaft.

[0015] As a preferred solution, the second rotating link includes a first arm, a second arm, a third arm and a fourth arm connected at one end. A connection end of each arm is rotatably installed on the button base through a pin shaft. The first arm and the second arm are rotatably connected to the two support rods at the second end of the second pressing link. A second spring is installed between the third arm and the fixing block, and the fourth arm is rotatably connected to the pull rod.

[0016] As a preferred solution, it further includes an arm tube body, and the arm tube body is detachably connected to the button base.

[0017] On the other hand, the present utility model further provides a fitness device, including the arm button mechanism as described above.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: by pressing the button, the linkage mechanism will pull the arm rotation limiting mechanism backward through the pull rod, so that the arm rotation limiting mechanism disengages from the gear with which it cooperates. The operation is simple and the structure is reliable. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present utility model;

[0020] Figure 2 is the structural schematic diagram of Embodiment 1 of the present utility model with the arm tube body removed;

[0021] Figure 3 is the connection relationship schematic diagram of the linkage mechanism, the button and the pull rod in Embodiment 1 of the present utility model;

[0022] Figure 4It is a schematic structural diagram of the arm rotation limiting mechanism of the present utility model;

[0023] Figure 5 is Figure 4 the A-A sectional view in

[0024] Figure 6 It is a schematic structural diagram of the overall structure of Embodiment 2 of the present utility model;

[0025] Figure 7 It is a schematic structural diagram of Embodiment 2 of the present utility model with the arm tube removed;

[0026] Figure 8 It is a schematic structural diagram of the link mechanism in Embodiment 2 of the present utility model;

[0027] Figure 9 It is a schematic diagram of the positional relationship between the engaging tooth pull shaft and the steel ball of the present utility model (locked);

[0028] Figure 10 It is a schematic diagram of the positional relationship between the engaging tooth pull shaft and the steel ball of the present utility model (unlocked).

[0029] In the figure:

[0030] 1. Button, 11. First spring, 12. Link pin, 2. Link mechanism, 21. First pressing link, 22. First rotating link, 23. Second pressing link, 24. Second rotating link, 25. Fixed block, 26. Second spring, 3. Pull rod, 4. Arm rotation limiting mechanism, 41. Sliding engaging tooth, 42. Engaging tooth pull shaft, 43. Arm throat, 44. Return spring, 45. Steel ball, 46. Spring support plate, 5. Button base, 6. Arm tube. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0035] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations will be made for the spatial relative descriptions used here.

[0036] In addition, it should be noted that the use of terms such as "first", "second" etc. to limit components is merely for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present utility model.

[0037] Embodiment 1

[0038] As Figures 1 to 5 shown, an arm key mechanism and a fitness device include a key 1, a key reset mechanism, a link mechanism 2, and a pull rod 3. The key reset mechanism is used for resetting the key 1; the first end of the link mechanism 2 is rotatably connected to the key base 5, and the key 1 is installed on the link mechanism 2; the first end of the pull rod 3 is rotatably connected to the second end of the link mechanism 2, and the second end of the pull rod 3 is connected to the arm rotation limit mechanism 4. Then, when the key 1 is pressed downward, the link mechanism 2 drives the pull rod 3 to pull the arm rotation limit mechanism 4 on one side of the key 1 to disengage it from the engaged gear.

[0039] In one embodiment, the arm rotation limit mechanism 4 includes a sliding engagement tooth 41, an engagement tooth pull shaft 42, an arm throat 43, and a return spring 44. The sliding engagement tooth 41 is installed in the arm throat 43 and is installed on the engagement tooth pull shaft 42 through two steel balls 45. Specifically, accommodation grooves for accommodating the steel balls 45 are provided on both the upper and lower sides of the sliding engagement tooth 41; the engagement tooth pull shaft 42 is connected to the second end of the pull rod 3, and the specific structure of the engagement tooth pull shaft 42 is as Figure 9 and 10As shown, it includes a first cylindrical portion. Both ends of the first cylindrical portion are connected to a second cylindrical portion and a third cylindrical portion through frustum-shaped structures. The diameter of the first cylindrical portion is smaller than the diameters of the second cylindrical portion and the third cylindrical portion. A section of the side of the third cylindrical portion for installing the pull rod 3 is cut off to form a plane, and a pin shaft for installing the pull rod 3 is formed on this plane. The steel balls 45 slide back and forth as the engaging tooth pull shaft 42 moves back and forth. Among them, as Figure 9 shown, when in the locked state, the steel balls 45 are located in the third cylindrical portion. When in the unlocked state, as Figure 10 shown, the steel balls 45 are located in the first cylindrical portion; one end of the arm throat 43 close to the pull rod 3 is connected to a spring support plate 46. The return spring 44 is sleeved on the pull rod 3 and supported by the spring support plate 46, then it is in the locked state, and the sliding engaging tooth 41 is in the protruding state, which will lock the gear that cooperates with it. When the button 1 is pressed, the link mechanism 2 will pull the sliding engaging tooth 41 away from the side of the arm rotation limiting mechanism 4 through the pull rod 3, so that the sliding engaging tooth 41 disengages from the gear that cooperates with it. When the button 1 is released, under the action of the return spring 44, the sliding engaging tooth 41 resets.

[0040] In this embodiment, the link mechanism 2 includes a first pressing link 21 and a first rotating link 22 with a triangular structure. The button 1 is installed on the first pressing link 21. Specifically, a button installation portion is formed on the first pressing link 21, and a waist-shaped hole is opened on the button installation portion. The button 1 is installed in the waist-shaped hole through a first spring 11 (i.e., the button reset mechanism) and a link pin 12. The function of the first spring 11 is to reset the button 1. The first end of the first pressing link 21 is rotatably connected to the mounting plate on the button base 5 through screws and nuts; a waist-shaped hole is opened at the second end of the first pressing link 21, and the first end of the first rotating link 22 is installed in the waist-shaped hole through screws and nuts; the second end of the first rotating link 22 is connected to the pull rod 3 through a pull rod fixing screw, and the third end of the first rotating link 22 is rotatably connected to the mounting plate on the button base 5 through screws and nuts. Then, when the button 1 is pressed downward, the first pressing link 21 drives the first rotating link 22 to pull the pull rod 3 away from the side of the arm rotation limiting mechanism 4.

[0041] In one embodiment, it further includes an arm tube body 6, and the arm tube body 6 is detachably connected to the button base 5 by means of a buckle.

[0042] Embodiment 2

[0043] As Figures 4 - 10As shown, different from Embodiment 1, the link mechanism 2 in this embodiment includes a second pressing link 23 and a second rotating link 24. A button 1 is installed on the second pressing link 23. Specifically, two mounting holes are formed in the second pressing link 23, and mounting protrusions for mounting in the mounting holes are formed at the bottom of the button 1. The first end of the second pressing link 23 is rotatably connected to the button base 5, the second end of the second pressing link 23 is rotatably connected to the first end of the second rotating link 24, the second end of the second rotating link 24 is rotatably connected to the pull rod 3, and the third end of the second rotating link 24 is rotatably connected to the button base 5.

[0044] In one embodiment, the second pressing link 23 is a V-shaped structure formed by two struts. The connecting end of the two struts is the first end, and the separated ends of the two struts are the second end. The first end of the second pressing link 23 is rotatably installed on the button base 5 through a pin shaft, and a fixing block 25 is installed on the pin shaft.

[0045] In one embodiment, the second rotating link 24 includes a first arm, a second arm, a third arm, and a fourth arm connected at one end. The connecting ends of the respective arms are rotatably installed on the button base 5 through a pin shaft. The first arm and the second arm are rotatably connected to the two struts at the second end of the second pressing link 23. A second spring 26 (i.e., the button reset mechanism) is installed between the third arm and the fixing block 25. The function of the second spring 26 is also used to reset the button 1. The fourth arm is rotatably connected to the pull rod 3.

[0046] Embodiment 3

[0047] On the other hand, the present invention also provides a fitness device, including the arm button mechanism in Embodiment 1 or Embodiment 2.

[0048] The above are the preferred embodiments of the present invention. Those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvements, substitutions, or variations made by those skilled in the art based on the present invention fall within the protection scope of the present invention.

Claims

1. An arm key mechanism, characterized in that, Comprising: A button (1); A button reset mechanism for resetting the button (1); A link mechanism (2), the first end of the link mechanism (2) is rotatably connected to the button base (5), and the button (1) is installed on the link mechanism (2); A pull rod (3), the first end of the pull rod (3) is rotatably connected to the second end of the link mechanism (2), and the second end of the pull rod (3) is connected to the arm rotation limiting mechanism (4).

2. The arm button mechanism according to claim 1, wherein: The arm rotation limiting mechanism (4) includes a sliding engagement tooth (41), an engagement tooth pull shaft (42), an arm throat (43), and a return spring (44). The sliding engagement tooth (41) is installed on the engagement tooth pull shaft (42) through two steel balls (45). The engagement tooth pull shaft (42) is connected to the second end of the pull rod (3). One end of the arm throat (43) close to the pull rod (3) is connected to a spring support plate (46). The return spring (44) is sleeved on the pull rod (3) and supported by the spring support plate (46).

3. The arm key mechanism according to claim 2, characterized in that: The link mechanism (2) includes a first pressing link (21) and a first rotating link (22). The button (1) is installed on the first pressing link (21). The first end of the first pressing link (21) is rotatably connected to the button base (5). The second end of the first pressing link (21) is rotatably connected to the first end of the first rotating link (22). The second end of the first rotating link (22) is connected to the pull rod (3), and the third end of the first rotating link (22) is rotatably connected to the button base (5).

4. The arm button mechanism according to claim 3, characterized in that: A button installation portion is formed on the first pressing link (21), and a kidney-shaped hole is opened in the button installation portion. The button (1) is installed in the kidney-shaped hole through a first spring (11) and a link pin (12).

5. The arm key mechanism according to claim 2, wherein: The link mechanism (2) includes a second pressing link (23) and a second rotating link (24). The button (1) is installed on the second pressing link (23). The first end of the second pressing link (23) is rotatably connected to the button base (5). The second end of the second pressing link (23) is rotatably connected to the first end of the second rotating link (24). The second end of the second rotating link (24) is rotatably connected to the pull rod (3), and the third end of the second rotating link (24) is rotatably connected to the button base (5).

6. The arm button mechanism according to claim 5, wherein: An installation hole is opened in the second pressing link (23), and an installation protrusion for installing in the installation hole is formed at the bottom of the button (1).

7. The arm button mechanism according to claim 5, wherein: The second pressing link (23) is a V-shaped structure formed by two struts. The connection end of the two struts is the first end, and the separated ends of the two struts are the second ends. The first end of the second pressing link (23) is rotatably installed on the button base (5) through a pin shaft, and a fixing block (25) is installed on the pin shaft.

8. The arm key mechanism according to claim 7, wherein: The second rotating link (24) includes a first arm, a second arm, a third arm, and a fourth arm that are connected at one end. The connecting ends of the arms are rotatably mounted on the key base (5) through a pin shaft. The first arm and the second arm are rotatably connected to the two rods at the second end of the second pressing link (23). A second spring (26) is installed between the third arm and the fixed block (25). The fourth arm is rotatably connected to the pull rod (3).

9. The arm button mechanism according to claim 1, characterized in that: It further includes an arm tube body (6), and the arm tube body (6) is detachably connected to the key base (5).

10. A fitness equipment, characterized in that: It includes the arm key mechanism according to any one of claims 1 to 9.

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