Pulley clamping jaw structure and fitness equipment

Abstract

The utility model discloses a pulley jack catch structure and fitness equipment, the pulley jack catch structure comprises a jack catch body and a pulley assembly, the jack catch body comprises a first jack catch, a second jack catch, a pressing piece, a connecting piece and an elastic piece, the two ends of the pressing piece are respectively suitable for being rotatably connected with one end of the first jack catch and one end of the second jack catch around the vertical direction; the connecting piece is rotationally connected with the other end of the first clamping jaw and the other end of the second clamping jaw in the vertical direction, when force is applied to the pressing piece, the first clamping jaw and the second clamping jaw tend to be opened relatively so as to loosen the pipe body, and at the moment, the elastic piece stores energy; when the pressing piece is not stressed, the elastic piece releases energy, the first clamping jaw and the second clamping jaw rotate in the relative tightening direction, meanwhile, the pressing piece starts to reset, and when the first clamping jaw and the second clamping jaw are tightened, the clamping jaw bodies are attached to the pipe body, and stopping of the clamping jaw bodies is achieved. The pulley assembly is installed on the clamping jaw body so as to change along with the position of the clamping jaw body, position adjustment is achieved, and training at different angles is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, specifically to a pulley claw structure and fitness equipment. Background Technology

[0002] The pulleys of strength training equipment are usually fixed in one position with screws. When adjusting, the screws need to be adjusted first, and then the equipment can be adjusted. Most strength training equipment on the market has a fixed training angle and cannot adjust or quickly adjust the position of the pulleys to adapt to different training angles. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and to provide a pulley claw structure and fitness equipment.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Option 1: A pulley chuck structure, including...

[0006] The jaw body includes a first jaw, a second jaw, a pressing member, a connecting member, and an elastic member. The two ends of the pressing member are respectively adapted to be rotatably connected to one end of the first jaw and the second jaw in a vertical direction. The connecting member is respectively rotatably connected to the other end of the first jaw and the second jaw in a vertical direction. The pressing member is adapted to move towards the connecting member when force is applied, causing the first jaw and the second jaw to open relative to each other. The elastic member is adapted to store energy when the first jaw and the second jaw are open relative to each other, and to release energy when the pressing member is not under force, causing the first jaw and the second jaw to tighten relative to each other and resetting the pressing member.

[0007] A pulley assembly, which is mounted on the claw body.

[0008] Option 2, based on Option 1, involves two connectors, located on the upper and lower sides of the first and second claws, respectively.

[0009] Option 3, based on Option 1, further includes a first fastening component, which includes a first nut and a first bolt. The first bolt is adapted to pass through the first claw and the connector and be threadedly connected to the first nut, and / or pass through the second claw and the connector and be threadedly connected to the first nut.

[0010] Option 4, based on Option 1, the elastic element includes a first leg, a second leg, and a connecting end connecting the first leg and the second leg. The connecting end is clamped between the first claw and the connecting member, and / or between the second claw and the connecting member. The first claw and the second claw are respectively provided with a first insertion hole and a second insertion hole suitable for the first leg and the second leg to be inserted.

[0011] Option 5, based on Option 1, the pressing component includes a first component and a second component, one end of the first component and one end of the second component are rotatably connected about the vertical direction, and the other ends of the first component and the second component are respectively rotatably connected about the first claw and the second claw about the vertical direction.

[0012] Option 6, based on Option 5, involves having two of each of the first and second components. The two first components are located on the upper and lower sides of the first and second jaws, respectively, and the two second components are located on the upper and lower sides of the first and second jaws, respectively.

[0013] Option 7, based on Option 5, further includes a second fastening component, which includes a second nut and a second bolt. The second bolt is adapted to pass through the first claw, the second claw, and the first or second piece and then be threadedly connected to the second nut.

[0014] Option 8, based on Option 6, further includes a third fastening component, which includes a third nut and a third bolt. The third bolt is adapted to pass through the first piece, the pulley assembly, and the second piece in sequence and then be threadedly connected to the third nut.

[0015] Option 9, based on Option 1, the pulley assembly includes a wheel body, a mounting component, an assembly part, and a fourth fastening component. The assembly part is adapted to rotate relative to the pressing component in a vertical direction. The mounting component and the assembly part are rotatably connected in a horizontal direction. The fourth fastening component includes a fourth nut and a fourth bolt. The fourth bolt is adapted to pass through the assembly part and the mounting component and then be threadedly connected to the fourth bolt. The wheel body is adapted to be rotatably connected to the mounting component.

[0016] Option 10: A fitness device comprising a tube, a rope, and a claw structure as described in any one of Options 1 to 9, wherein the claw body is adapted to be fitted onto the tube, and when the first claw and the second claw are open relative to each other, the claw body is adapted to slide relative to the tube, and the first claw and the second claw are adapted to be tightened relative to each other to press against the tube, so that the claw body stops relative to the tube, and the rope is adapted to cooperate with the pulley assembly.

[0017] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0018] 1. In Scheme 1 and its preferred embodiments, a pulley chuck structure includes a chuck body and a pulley assembly.

[0019] The jaw body includes a first jaw, a second jaw, a pressing member, a connecting member, and an elastic member. Both ends of the pressing member are adapted to be rotatably connected to one end of the first jaw and the second jaw in a vertical direction, respectively. The connecting member is rotatably connected to the other end of the first jaw and the second jaw in a vertical direction, so that the pressing member, the first jaw, the connecting member, and the second jaw are sequentially connected end-to-end to form a sleeve hole that can be fitted onto the tube body. When force is applied to the pressing member, the pressing member moves towards the connecting member, and the pressing member transmits the force to the first jaw and the second jaw. The first and second jaws rotate relative to the pressing and connecting parts, and tend to open relative to each other to loosen the tube. At this time, the elastic element stores energy. When the pressing part is not under force, the elastic element releases energy and acts on the first and second jaws to make them rotate in a relatively tightening direction. At the same time, the pressing part begins to reset due to being linked by the first and second jaws. When the first and second jaws tighten, they fit against the tube, realizing the stopping of the jaw body. This method is simpler and more efficient than screw adjustment.

[0020] The pulley assembly is installed on the gripper body so that its position changes with the position of the gripper body, thereby achieving position adjustment to enable training at different angles.

[0021] 2. In Scheme 2 and its preferred embodiments, there are two connectors, which are located on the upper and lower sides of the first and second jaws, respectively. By increasing the number of connectors and reasonably setting the position of the connectors, the connection strength and stability during use are increased.

[0022] 3. In Scheme 3 and its preferred embodiments, the chuck body further includes a first fastening component, which includes a first nut and a first bolt. The first bolt is adapted to pass through the first chuck and the connector and be threaded to the first nut, and / or pass through the second chuck and the connector and be threaded to the first nut, thereby realizing the rotational connection between the first chuck and the connector, and / or the rotational connection between the second chuck and the connector, and the degree of rotational tightness between the two can be adjusted by adjusting the first nut.

[0023] 4. In Scheme 4 and its preferred embodiments, the elastic element includes a first leg, a second leg, and a connecting end connecting the first leg and the second leg. The connecting end is clamped between the first claw and the connecting member, and / or between the second claw and the connecting member, to fix the position of the elastic element. The first claw and the second claw are respectively provided with a first insertion hole and a second insertion hole suitable for the insertion of the first leg and the second claw, so that the elastic element and the first claw and the second claw can transmit force to each other, and the first claw and the second claw can be controlled by a single elastic element, which is more convenient.

[0024] 5. In Scheme 5 and its preferred embodiments, the pressing component includes a first component and a second component. One end of the first component and one end of the second component are rotatably connected in a vertical direction. The other end of the first component and the other end of the second component are respectively rotatably connected in a vertical direction to the first claw and the second claw. By splitting the pressing component, the pressing component is easier to apply force, and the first claw and the second claw can be tightened more, thereby improving the docking effect.

[0025] 6. In Scheme 6 and its preferred embodiments, there are two first pieces and two second pieces. The two first pieces are located on the upper and lower sides of the first claw and the second claw, respectively, and the two second pieces are located on the upper and lower sides of the first claw and the second claw, respectively. By increasing the number of first pieces and second pieces and reasonably setting the positions of the first pieces and second pieces, the connection strength and stability during use are increased.

[0026] 7. In Scheme 7 and its preferred embodiments, the chuck body further includes a second fastening component. The second fastening component includes a second nut and a second bolt. The second bolt is adapted to pass through the first chuck, the second chuck, and the first or second piece and then be threadedly connected to the second nut to realize the rotational connection of the first chuck, the second chuck, and the first piece, or the rotational connection of the first chuck, the second chuck, and the second piece. The rotation tightness can be adjusted by adjusting the second nut.

[0027] 8. In Scheme 8 and its preferred embodiments, the chuck body further includes a third fastening assembly, which includes a third nut and a third bolt. The third bolt is adapted to pass through the first piece, the pulley assembly, and the second piece in sequence before being threadedly connected to the third nut to achieve a rotational connection between the second piece and the first piece, and also to install the pulley assembly. Furthermore, the tightness of rotation can be adjusted by adjusting the third nut.

[0028] 9. In Scheme Nine and its preferred embodiments, the pulley assembly includes a wheel body, a mounting component, an assembly part, and a fourth fastening assembly. The assembly part is adapted to rotate relative to the pressing component in a vertical direction, allowing the angle of the assembly part to be adjusted relative to the pressing component. The mounting component is rotatably connected to the assembly part in a horizontal direction, allowing the angle of the mounting component to be adjusted relative to the assembly part. The fourth fastening assembly includes a fourth nut and a fourth bolt. The fourth bolt is adapted to pass through the assembly part and the mounting component and then be threadedly connected to the fourth bolt, completing the rotational connection between the two. The tightness of rotation can be adjusted by adjusting the fourth nut. The wheel body is adapted to be rotatably connected to the mounting component, thereby preventing severe wear caused by hard friction.

[0029] 10. In Scheme 10 and its preferred embodiments, a fitness device includes a tube, a rope, and the aforementioned claw structure. The claw body is adapted to be fitted onto the tube. When the first claw and the second claw are relatively open, the claw body is adapted to slide relative to the tube to achieve adjustment. The first claw and the second claw are adapted to be relatively tightened to press against the tube, so that the claw body stops relative to the tube. The rope is adapted to cooperate with the pulley assembly to achieve steering or other purposes. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a perspective view of the pulley and pawl structure in Example 1;

[0032] Figure 2 This is a top view of the pulley and pawl structure in Embodiment 1;

[0033] Figure 3 This is a front view of the pulley and pawl structure in Embodiment 1;

[0034] Figure 4 This is a perspective view of the elastic element in Embodiment 1;

[0035] Figure 5 This is a three-dimensional view of the fitness equipment in Example 1.

[0036] Explanation of key figure labels:

[0037] Claw body 10; First claw 1; First insertion hole 11; Second claw 2; Second insertion hole 21; Pressing member 3; First component 31; Second component 32; Connecting member 4; Elastic member 5; First support leg 51; Second support leg 52; Connecting end 53; Spring body 531; First fastening assembly 6; First nut 61; First bolt 62; Second fastening assembly 7; Second nut 71; Second bolt 72; Third fastening assembly 8; Third nut 81; Third bolt 82;

[0038] Pulley assembly 20; wheel body 91; mounting component 92; assembly part 93; fourth fastening assembly 94; fourth nut 941; fourth bolt 942;

[0039] Tube body 30. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0041] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0042] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.

[0043] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0044] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0045] Example 1

[0046] refer to Figures 1-4 A pulley chuck structure includes a chuck body 10 and a pulley assembly 20.

[0047] refer to Figures 1-3 The claw body 10 includes a first claw 1, a second claw 2, a pressing member 3, a connecting member 4, an elastic member 5, a first fastening assembly 6, a second fastening assembly 7, and a third fastening assembly 8. The pressing member 3, the first claw 1, the connecting member 4, and the second claw 2 are connected end to end to form a sleeve hole that can be fitted onto the tube body 30.

[0048] The two ends of the pressing member 3 are respectively adapted to be rotatably connected to one end of the first claw 1 and the second claw 2 in the vertical direction. In this embodiment, the pressing member 3 includes a first part 31 and a second part 32. One end of the first part 31 and one end of the second part 32 are rotatably connected in the vertical direction. In this embodiment, the first part 31 and the second part 32 are connected by a third fastening assembly 8. Specifically, the third fastening assembly 8 includes a third nut 81 and a third bolt 82. The third bolt 82 is adapted to pass through the first part 31, the pulley assembly 20 and the second part 32 in sequence and then be threadedly connected to the third nut 81 to achieve the corresponding installation. For the exposed part of the third bolt 82, a sleeve or a sealing gasket can be used to cover it to prevent wear or damage caused by exposure. The same applies to other fastening assemblies.

[0049] The other end of the first piece 31 and the other end of the second piece 32 are respectively rotatably connected to the first jaw 1 and the second jaw 2 in a vertical direction. In this embodiment, the above connection is achieved by the second fastening assembly 7. Specifically, the second fastening assembly 7 includes a second nut 71 and a second bolt 72. The second bolt 72 is adapted to pass through the first jaw 1, the second jaw 2, and the first piece 31 or the second piece 32 and then be threadedly connected to the second nut 71. In this embodiment, there are two sets of the second fastening assembly 7. One second bolt 72 is adapted to pass through the first jaw 1, the second jaw 2, and the first piece 31 and then be threadedly connected to a second nut 71. The other second bolt 72 is adapted to pass through the first jaw 1, the second jaw 2, and the second piece 32 and then be threadedly connected to another second nut 71. There are two first pieces 31 and two second pieces 32, and both the first pieces 31 and the second piece 32 are arc-shaped. The two first pieces 31 are located on the upper and lower sides of the first jaw 1 and the second jaw 2, respectively, and the two second pieces 32 are located on the upper and lower sides of the first jaw 1 and the second jaw 2, respectively.

[0050] The first claw 1 and the second claw 2 are also arc-shaped. In this embodiment, there are two of each first claw 1 and second claw 2, with the two first claws 1 stacked together and the two second claws 2 stacked together. The first claw 1 and the second claw 2 are respectively provided with a first insertion hole 11 and a second insertion hole 21 extending in the vertical direction.

[0051] The connector 4 is also arc-shaped, and the connector 4 is rotatably connected to the other end of the first claw 1 and the second claw 2 in a vertical direction; there are two connectors 4, which are located on the upper and lower sides of the first claw 1 and the second claw 2 respectively.

[0052] refer to Figure 4 The elastic element 5 is a torsion spring, comprising a first leg 51, a second leg 52, and a connecting end 53 connecting the first leg 51 and the second leg 52. The connecting end 53 includes two spring bodies 531, which are helical. In this embodiment, the two spring bodies 531 are respectively clamped between the first claw 1 and the connecting member 4, and between the second claw 2 and the connecting member 4. In other embodiments, only one spring body 531 may be used, clamped between the first claw 1 and the connecting member 4 or between the second claw 2 and the connecting member 4. The first leg 51 and the second leg 52 are respectively adapted to be inserted into the first socket 11 and the second socket 21. In other embodiments, two elastic elements 5 may be provided, one elastic element 5 connecting the first claw 1 and the connecting member 4, and the other elastic element 5 connecting the second claw 2 and the connecting member 4.

[0053] refer to Figures 1-3 The first fastening assembly 6 includes a first nut 61 and a first bolt 62. In this embodiment, there are two first fastening assemblies 6. One first bolt 62 passes through the connector 4, spring body 531, first claw 1, and connector 4 in sequence before being threaded to a first nut 61. The other first bolt 62 passes through the connector 4, another spring body 531, second claw 2, and connector 4 in sequence before being threaded to another first nut 61. It should be understood that the connector 4, first claw 1, second claw 2, and elastic member 5 can also be connected by a set of first fastening assemblies 6. In other embodiments, the first bolt 62 can also be adapted to pass through the first claw 1 and connector 4 before being threaded to the first nut 61, and the connection method of the second claw 2 and connector 4 can be other.

[0054] The pressing member 3 is adapted to move toward the connecting member 4 when subjected to force, so that the first claw 1 and the second claw 2 open relative to each other due to the rotation of the connecting member 4 and the pressing member 3, thereby increasing the distance between the first claw 1 and the second claw 2.

[0055] The elastic element 5 is installed on the connector 4, the first claw 1 and the second claw 2. When the first claw 1 and the second claw 2 are relatively open, the first support leg 51 and the second support leg 52 are far away from the spring body 531, so the elastic element 5 starts to store energy. When the pressing member 3 is not under force, the elastic element 5 releases energy so that the first claw 1 and the second claw 2 are relatively tightened and the pressing member 3 is reset.

[0056] A pulley assembly 20 is mounted on the claw body 10. The pulley assembly 20 includes a wheel body 91, a mounting member 92, a fitting 93, and a fourth fastening assembly 94. The fitting 93 is adapted to rotate relative to the pressing member 3 in a vertical direction. The mounting member 92 is rotatably connected to the fitting 93 in a horizontal direction. The fourth fastening assembly 94 includes a fourth nut 941 and a fourth bolt 942. The fourth bolt 942 is adapted to pass through the fitting 93 and the mounting member 92 and then be threadedly connected to the fourth bolt 942. The wheel body 91 is adapted to rotate with the mounting member 92 in a horizontal direction, wherein the vertical and horizontal directions are perpendicular to each other. The wheel body 91 is provided with an annular groove for accommodating a rope.

[0057] Compared with the prior art, this embodiment has the following beneficial effects:

[0058] In one exemplary embodiment, a pulley chuck structure includes a chuck body 10 and a pulley assembly 20.

[0059] The jaw body 10 includes a first jaw 1, a second jaw 2, a pressing member 3, a connecting member 4, and an elastic member 5. Both ends of the pressing member 3 are adapted to be rotatably connected to one end of the first jaw 1 and the second jaw 2 in a vertical direction. The connecting member 4 is rotatably connected to the other end of the first jaw 1 and the second jaw 2 in a vertical direction, so that the pressing member 3, the first jaw 1, the connecting member 4, and the second jaw 2 are sequentially connected end-to-end to form a sleeve hole that can be fitted onto the tube body 30. When force is applied to the pressing member 3, the pressing member 3 moves towards the connecting member 4, and the pressing member 3 transmits the force to the first jaw 1 and the second jaw 2. The first claw 1 and the second claw 2 rotate relative to the pressing member 3 and the connecting member 4, and tend to open relative to each other to loosen the tube body 30. At this time, the elastic member 5 stores energy. When the pressing member 3 is not under force, the elastic member 5 releases energy and acts on the first claw 1 and the second claw 2 to make the first claw 1 and the second claw 2 rotate in the direction of relative tightening. At the same time, the pressing member 3 begins to reset due to being linked by the first claw 1 and the second claw 2. When the first claw 1 and the second claw 2 tighten, they fit against the tube body 30, realizing the stopping of the claw body 10. This method is simpler and more efficient than screw adjustment.

[0060] The pulley assembly 20 is installed on the gripper body 10 so that its position changes with the position of the gripper body 10 to achieve position adjustment and enable training at different angles.

[0061] In one exemplary embodiment, there are two connectors 4, which are located on the upper and lower sides of the first claw 1 and the second claw 2, respectively. By increasing the number of connectors 4 and reasonably setting the position of the connectors 4, the connection strength and stability during use are increased.

[0062] In one exemplary embodiment, the jaw body 10 further includes a first fastening component 6, which includes a first nut 61 and a first bolt 62. The first bolt 62 is adapted to pass through the first jaw 1 and the connector 4 and be threadedly connected to the first nut 61, and / or pass through the second jaw 2 and the connector 4 and be threadedly connected to the first nut 61, thereby realizing the rotational connection between the first jaw 1 and the connector 4, and / or the rotational connection between the second jaw 2 and the connector 4, and the degree of rotational tightness between the two can be adjusted by adjusting the first nut 61.

[0063] In one exemplary embodiment, the elastic element 5 includes a first leg 51, a second leg 52, and a connecting end 53 connecting the first leg 51 and the second leg 52. The connecting end 53 is clamped between the first claw 1 and the connecting member 4, and / or between the second claw 2 and the connecting member 4, to fix the position of the elastic element 5. The first claw 1 and the second claw 2 are respectively provided with a first insertion hole 11 and a second insertion hole 21 suitable for the insertion of the first leg 51 and the second leg 52, so that the elastic element 5 transmits force to the first claw 1 and the second claw 2, and the first claw 1 and the second claw 2 can be controlled by a single elastic element 5, which is more convenient.

[0064] In one exemplary embodiment, the pressing member 3 includes a first member 31 and a second member 32. One end of the first member 31 and one end of the second member 32 are rotatably connected in a vertical direction. The other end of the first member 31 and the other end of the second member 32 are respectively rotatably connected in a vertical direction to the first claw 1 and the second claw 2. By splitting the pressing member 3, it is easier to apply force to the pressing member 3, and the first claw 1 and the second claw 2 can be tightened more, thereby improving the docking effect.

[0065] In one exemplary embodiment, there are two first pieces 31 and two second pieces 32. The two first pieces 31 are located on the upper and lower sides of the first claw 1 and the second claw 2, respectively, and the two second pieces 32 are located on the upper and lower sides of the first claw 1 and the second claw 2, respectively. By increasing the number of first pieces 31 and second pieces 32 and reasonably setting the positions of the first pieces 31 and second pieces 32, the connection strength and stability during use are increased.

[0066] In one exemplary embodiment, the jaw body 10 further includes a second fastening component 7, which includes a second nut 71 and a second bolt 72. The second bolt 72 is adapted to pass through the first jaw 1, the second jaw 2, and the first piece 31 or the second piece 32 and then be threadedly connected to the second nut 71 to realize the rotational connection of the first jaw 1, the second jaw 2, and the first piece 31, or the rotational connection of the first jaw 1, the second jaw 2, and the second piece 32. The tightness of rotation can be adjusted by adjusting the second nut 71.

[0067] In one exemplary embodiment, the chuck body 10 further includes a third fastening assembly 8, which includes a third nut 81 and a third bolt 82. The third bolt 82 is adapted to pass sequentially through the first piece 31, the pulley assembly 20, and the second piece 32 before being threadedly connected to the third nut 81, thereby achieving a rotational connection between the second piece 32 and the first piece 31, and also enabling the installation of the pulley assembly 20. Furthermore, the tightness of the rotation can be adjusted by adjusting the third nut 81.

[0068] In one exemplary embodiment, the pulley assembly 20 includes a wheel body 91, a mounting member 92, an assembly 93, and a fourth fastening assembly 94. The assembly 93 is adapted to rotate relative to the pressing member 3 in a vertical direction, allowing the angle of the assembly 93 relative to the pressing member 3 to be adjusted. The mounting member 92 is rotatably connected to the assembly 93 in a horizontal direction, allowing the angle of the mounting member 92 relative to the assembly 93 to be adjusted. The fourth fastening assembly 94 includes a fourth nut 941 and a fourth bolt 942. The fourth bolt 942 is adapted to pass through the assembly 93 and the mounting member 92 and then be threadedly connected to complete the rotational connection between the two. The tightness of the rotation can be adjusted by adjusting the fourth nut 941. The wheel body 91 is adapted to be rotatably connected to the mounting member 92, thereby preventing severe wear caused by hard friction.

[0069] Example 2

[0070] refer to Figure 5 A fitness device includes a tube body 30, a rope body, and the aforementioned claw structure. The claw body 10 has a sleeve hole suitable for fitting into the tube body 30. The pressing member 3 initially has a gap with the tube body 30 to facilitate pressing, while the connecting member 4 can abut against the tube body 30 to increase the contact surface and improve stability. When the first claw 1 and the second claw 2 are relatively open, the claw body 10 is suitable for sliding relative to the tube body 30 to adjust the position of the pulley assembly 20. The first claw 1 and the second claw 2 are suitable for relatively tightening to press against the tube body 30, causing the claw body 10 to stop relative to the tube body 30, thereby completing the stable use after adjustment. The rope body is suitable for cooperating with the wheel 91 of the pulley assembly 20 to achieve steering or other purposes.

[0071] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A pulley jaw structure, characterized by: The utility model relates to a kind of clamping device, including Clamping body (10), it includes first clamping jaw (1), second clamping jaw (2), pressing piece (3), connecting piece (4) and elastic piece (5), both ends of the pressing piece (3) are suitable for being connected around vertical direction rotation with one end of the first clamping jaw (1) and the second clamping jaw (2) respectively, the connecting piece (4) is connected around vertical direction rotation with the other end of the first clamping jaw (1) and the second clamping jaw (2) respectively;The pressing piece (3) is suitable for moving towards the connecting piece (4) direction when being forced to make the first clamping jaw (1) and the second clamping jaw (2) relatively open;The elastic piece (5) is suitable for storing energy when the first clamping jaw (1) and the second clamping jaw (2) are relatively open, and releases energy when the pressing piece (3) is not forced, to make the first clamping jaw (1) and the second clamping jaw (2) relatively close, and make the pressing piece (3) reset; Pulley assembly (20) is installed to the clamping body (10).

2. A pulley jaw structure as claimed in claim 1, wherein: The connecting piece (4) is two, and is located on the upper and lower sides of the first clamping jaw (1) and the second clamping jaw (2) respectively.

3. A pulley jaw structure as claimed in claim 1, wherein: The clamping body (10) further includes first fastening assembly (6), the first fastening assembly (6) includes first nut (61) and first bolt (62), the first bolt (62) is suitable for being connected with the first nut (61) after being penetrated through the first clamping jaw (1) and the connecting piece (4) with the first nut (61) threaded connection, and / or is connected with the first nut (61) after being penetrated through the second clamping jaw (2) and the connecting piece (4) with the first nut (61) threaded connection.

4. A pulley jaw structure as claimed in claim 1, wherein: The elastic piece (5) includes first support leg (51), second support leg (52) and the connecting end (53) connecting the first support leg (51) and the second support leg (52), the connecting end (53) is clamped between the first clamping jaw (1) and the connecting piece (4), and / or between the second clamping jaw (2) and the connecting piece (4), and the first clamping jaw (1) and the second clamping jaw (2) are respectively provided with first jack (11) and second jack (21) suitable for the first support leg (51) and the second support leg (52) are inserted.

5. A pulley jaw structure as claimed in claim 1, wherein: The pressing piece (3) includes first piece (31) and second piece (32), one end of the first piece (31) and one end of the second piece (32) are connected around vertical direction rotation, the other end of the first piece (31) and the other end of the second piece (32) are connected around vertical direction rotation with the first clamping jaw (1) and the second clamping jaw (2) respectively.

6. A pulley jaw structure as claimed in claim 5, wherein: The first piece (31) and the second piece (32) are two, two first pieces (31) are respectively located on the upper and lower sides of the first clamping jaw (1) and the second clamping jaw (2), and two second pieces (32) are respectively located on the upper and lower sides of the first clamping jaw (1) and the second clamping jaw (2).

7. A pulley jaw structure as claimed in claim 5, wherein: The claw body (10) further comprises a second fastening assembly (7), the second fastening assembly (7) comprising a second nut (71) and a second bolt (72), the second bolt (72) being adapted to pass through the first claw (1), the second claw (2) and the first piece (31) or the second piece (32) and be screwed with the second nut (71).

8. A pulley jaw structure as claimed in claim 6, wherein: The claw body (10) further comprises a third fastening assembly (8), the third fastening assembly (8) comprising a third nut (81) and a third bolt (82), the third bolt (82) being adapted to pass through the first piece (31), the pulley assembly (20) and the second piece (32) in sequence and be screwed with the third nut (81).

9. A pulley jaw structure as claimed in claim 1, wherein: The pulley assembly (20) comprises a wheel body (91), a mounting piece (92) and an assembling piece (93) and a fourth fastening assembly (94), the assembling piece (93) being adapted to rotate around the vertical direction relative to the pressing piece (3), the mounting piece (92) being rotationally connected with the assembling piece (93) around the horizontal direction, the fourth fastening assembly (94) comprising a fourth nut (941) and a fourth bolt (942), the fourth bolt (942) being adapted to pass through the assembling piece (93) and the mounting piece (92) and be screwed with the fourth bolt (942), the wheel body (91) being adapted to be rotationally connected with the mounting piece (92).

10. An exercise apparatus characterized by: A pulley claw structure comprising a tube body (30), a rope body and a claw body (10) as claimed in any one of claims 1-9, the claw body (10) being adapted to be sleeved on the tube body (30), the first claw (1) and the second claw (2) being adapted to be opened relative to each other, the claw body (10) being adapted to slide relative to the tube body (30), the first claw (1) and the second claw (2) being adapted to be tightened to press against the tube body (30) so as to stop the claw body (10) relative to the tube body (30), the rope body being adapted to cooperate with the pulley assembly (20).

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