Wheel hub clamping device

Abstract

The present invention relates to the field of automobile technology, and provides a wheel hub clamping device, comprising a main body, a clamping assembly, and a traction assembly. Two clamping assemblies are respectively installed on the main body, and the traction assembly is respectively connected to the two clamping assemblies. The traction assembly can adjust the extension amplitude of the clamping assembly, so that the two clamping assemblies move relative to the main body at the same time, and the displacement of the two clamping assemblies relative to the traction assembly is the same. When the two clamping assemblies are respectively clamped on the tire, the central axis of the installation module can be made to coincide with the central axis of the wheel hub, thereby achieving precise positioning between the wheel hub clamping device and the wheel hub, and the installation operation process is simple and fast.

Description

[Technical field]

[0001] The invention relates to the technical field of automobiles, and in particular to a wheel hub clamping device. [Background technology]

[0002] During the process of automobile maintenance (such as four-wheel alignment and ADAS calibration), various auxiliary equipment needs to be installed on the wheel hub. The wheel hub clamping device needs to be accurately positioned when installed on the wheel hub, but the existing wheel hub clamping devices are divided into two categories, one is that they can be installed quickly but cannot be accurately positioned, and the other is that they can be accurately positioned but the installation operation is complicated and the installation time is long. [Summary of the invention]

[0003] In order to solve the above technical problems, an embodiment of the present invention provides a wheel hub clamping device, which can be accurately positioned with the wheel hub and has a simple installation method.

[0004] The embodiment of the present invention solves the technical problem by adopting the following technical solution:

[0005] A wheel hub clamping device is provided, comprising:

[0006] A main body, wherein the main body is provided with a mounting module, and the mounting module is used to connect an external device;

[0007] Two clamping assemblies, the two clamping assemblies are respectively connected to opposite ends of the main body, the two clamping assemblies are used to clamp the tire of the wheel so that the wheel hub clamping device is attached to the wheel, and the two clamping assemblies can be extended relative to the main body to reach the edge of the tire; and

[0008] A traction assembly, the traction assembly is mounted on the main body, the traction assembly is respectively connected to the two clamping assemblies, and the traction assembly is used to adjust the extension amplitude of the clamping assembly;

[0009] Wherein, when the two clamping assemblies are respectively clamped on the tire, the main body abuts against the wheel hub of the wheel, and the central axis of the mounting module coincides with the central axis of the wheel hub.

[0010] Optionally, it is characterized in that the traction assembly is located in the middle of the main body, and the traction assembly includes a rotating wheel, a traction member and a reset member;

[0011] The rotating wheel is rotatably connected to the main body;

[0012] The traction member connects the rotating wheel and the clamping assembly, and the rotating wheel is used to accommodate the traction member so that the traction member can adapt to the movement of the clamping assembly;

[0013] The resetting member is used to generate a pulling force on the clamping assembly through the traction member when an external force pulls the clamping assembly to move in a direction away from the traction assembly.

[0014] Optionally, one end of the traction member is connected to the clamping assembly, and the other end of the traction member is wrapped around the rotating wheel and fixed to the rotating wheel.

[0015] Optionally, there are two reset members, which are disposed at opposite ends of the rotating wheel.

[0016] Optionally, the reset member is elastic and mounted on the rotating wheel. When the rotating wheel is rotated by an external force, the reset member is deformed to generate a pulling force on the traction member. After the external force is released, the reset member restores its deformation to accommodate the traction member back into the rotating wheel.

[0017] Optionally, the reset member is a torsion spring, and two ends of the torsion spring are respectively connected to the main body and the rotating wheel.

[0018] Optionally, the traction assembly further comprises a fixing frame, and the fixing frame is fixed to the main body;

[0019] The fixing frame is provided with an installation space, the rotating wheel and the resetting member are both accommodated in the installation space, and one end of the traction member extends to the outside of the installation space and is connected to the clamping assembly.

[0020] Optionally, the fixing frame is provided with two positioning columns;

[0021] The traction assembly further includes two fixed pulleys, each of which is sleeved on a corresponding one of the positioning columns;

[0022] The middle part of each traction member is wound around a corresponding fixed pulley, so that the ends of the two traction members facing away from the rotating wheel are located on the same straight line.

[0023] Optionally, the clamping assembly is pivotable relative to the body.

[0024] Optionally, it is characterized in that the clamping assembly comprises a connecting rod and a clamping rod, the connecting rod is pivotally mounted on the main body, and the clamping rod is pivotally connected to the connecting rod;

[0025] A clamping claw is provided at one end of the clamping rod away from the connecting rod, and the clamping claw is used for clamping the tire.

[0026] Optionally, the clamping assembly further comprises a handle, wherein the handle is disposed on the clamping rod, and the handle is pulled externally to provide external force.

[0027] Optionally, the wheel hub clamping device further comprises a locking assembly;

[0028] The locking assembly is connected to the traction assembly, and is used to lock the traction assembly to the main body to limit the rotation of the traction assembly relative to the main body, so that the clamping assembly clamps the tire.

[0029] Optionally, the locking device comprises a locking rod and a brake module matched with the locking rod, the locking rod is fixedly connected to the rotating wheel, and the brake module is arranged on the main body;

[0030] When external force pulls the traction member to drive the rotating wheel to rotate, the locking rod rotates with the rotating wheel. When the clamping assembly is clamped on the tire, the locking rod is rotated in the opposite direction of the rotation of the rotating wheel to the position of the brake module by the external force. The brake module limits the displacement of the locking rod so that the traction member tightens the clamping assembly, thereby causing the clamping assembly to clamp the tire.

[0031] Optionally, the wheel hub clamping device further comprises a stretching assembly, wherein the stretching assembly is arranged between the clamping assembly and the traction member;

[0032] The stretching assembly is elastic. When the locking rod is rotated in the opposite direction of the rotation of the rotating wheel by an external force, the stretching assembly provides elastic force to enable the clamping assembly to clamp the tire.

[0033] Optionally, each of the stretching components comprises an elastic member, a push rod and a casing;

[0034] The push rod is provided with a shaft shoulder, the sleeve shell is provided with a stepped surface inside, the elastic member is sleeved on the push rod and accommodated in the sleeve shell, and the two ends of the elastic member abut against the shaft shoulder and the stepped surface respectively;

[0035] The push rod is connected to the traction member, and the sleeve is connected to the clamping assembly.

[0036] Optionally, the stretching assembly further comprises a pressing block;

[0037] One end of the pressing block is connected to the sleeve shell, and the other end of the pressing block is rotatably connected to the clamping assembly.

[0038] Optionally, the main body includes a shell and a base, and the shell is connected to the base;

[0039] The clamping assembly is connected to the base, and the braking module is arranged on the shell.

[0040] Optionally, the number of the braking modules is at least two, and at least two of the braking modules are located at different positions that the locking rod passes when rotating in the opposite direction of the rotating wheel, so that the stretching assembly provides different elastic forces.

[0041] Optionally, the braking module is a card slot, and a connecting mechanism is provided between the card slots at different positions, so that the locking rod can be rotated to the position of the card slots at different positions through the connecting mechanism.

[0042] Optionally, the communication mechanism is a communication groove communicated with the card slot, the locking rod passes through the communication groove, and the locking rod can rotate in the communication groove;

[0043] The depth of the card slot is greater than the depth of the connecting slot;

[0044] The locking rod includes a fixing rod and a handle, wherein the fixing rod is fixedly connected to the rotating wheel, the handle passes through the connecting groove, and the handle is connected to the fixing rod in an angle-adjustable manner so that the handle can be displaced between the connecting groove and the clamping groove.

[0045] Optionally, the shell and the base form a concave cavity with one side open, and the traction assembly is accommodated in the concave cavity;

[0046] The mounting module is arranged on the bottom surface of the shell, wherein the bottom surface of the shell is a surface facing away from the opening thereof.

[0047] Optionally, the bottom surface of the shell is symmetrical in shape, and the mounting module is installed at the center of the bottom surface.

[0048] Optionally, an abutment seat is provided at one end of the shell facing away from the bottom surface, and the abutment seat is used to abut the end surface of the wheel hub when the clamping assembly clamps the tire.

[0049] Optionally, the base is made of elastic material.

[0050] Compared with the prior art, in an embodiment of the present invention, the two clamping assemblies are respectively installed on the main body, and the traction assembly is respectively connected to the two clamping assemblies. The traction assembly can make the two clamping assemblies move relative to the main body at the same time, and the displacement of the two clamping assemblies relative to the central axis of the mounting module is the same. When the two clamping assemblies are respectively clamped on the tire, the central axis of the mounting module can be made to coincide with the central axis of the wheel hub, thereby achieving precise positioning between the wheel hub clamping device and the wheel hub, and the installation operation process is simple and fast.

Brief Description of the Drawings

[0051] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0052] Figure 1 A schematic structural diagram of a wheel hub clamping device provided in one embodiment of the present invention;

[0053] Figure 2 for Figure 1 A schematic structural diagram of the main body of the wheel hub clamping device shown;

[0054] Figure 3 for Figure 2 An exploded view of the main body shown;

[0055] Figure 4 for Figure 3 An enlarged view of point A of the subject shown;

[0056] Figure 5 for Figure 1 The schematic structural diagram of the wheel hub clamping device from another perspective is shown, wherein some components are omitted;

[0057] Figure 6 for Figure 5 A schematic structural diagram of a traction assembly of a wheel hub clamping device shown;

[0058] Figure 7 for Figure 6 An exploded view of the towing assembly shown;

[0059] Figure 8 for Figure 7 An exploded view of the rotating wheel of the traction assembly is shown;

[0060] Fig. 9 for Figure 5 A schematic structural diagram of a clamping assembly of a hub clamping device shown;

[0061] Fig.10 for Figure 1 A schematic structural diagram of a locking assembly of a wheel hub clamping device shown;

[0062] Fig.11 for Figure 1 The schematic structural diagram of the wheel hub clamping device from another perspective is shown, wherein some components are omitted;

[0063] Fig.12 for Figure 1 A schematic structural diagram of another state of the wheel hub clamping device shown, wherein some components are omitted;

[0064] Fig.13 for Fig.12 An exploded schematic diagram of the stretching assembly of the hub clamping device shown;

[0065] Fig.14 for Fig.13 A cross-sectional view of the tensile assembly is shown. [Specific implementation method]

[0066] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom" etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0067] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0068] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0069] See also Figure 1 One embodiment of the present invention provides a wheel hub clamping device 100, comprising: a main body 10, a traction assembly 20 and a clamping assembly 30. The number of the clamping assemblies 30 is two, the two clamping assemblies 30 are respectively connected to the main body 10, the two clamping assemblies 30 can be extended relative to the main body 10, and the clamping assemblies 30 are used to clamp the tire of the wheel. The traction assembly 20 is installed on the main body 10, the traction assembly 20 is respectively connected to the two clamping assemblies 30, and the traction assembly 20 is used to adjust the extension range of the two clamping assemblies 30.

[0070] The main body 10 is provided with a mounting module, which is used to connect an external device. The mounting module is provided with a central axis X. Preferably, the two clamping assemblies 30 are symmetrically arranged relative to the central axis X. The traction assembly 20 can pull the two clamping assemblies 30 to move relative to the main body 10 at the same time, and the displacement of the two clamping assemblies 30 relative to the central axis X is the same, so that when the two clamping assemblies 30 are respectively clamped on the edges of the tire, the central axis X coincides with the central axis of the wheel hub.

[0071] See also Figures 2 to 4 The main body 10 includes a base 11 and a shell 12, and the base 11 is fixed to the shell 12. The clamping assembly 30 is installed on the base 11, the pulling assembly 20 is accommodated in the shell 12, and the mounting module is arranged on the shell 12.

[0072] The base 11 includes a base 110 and two supporting parts 112, and the two supporting parts 112 are respectively arranged on the base 110. The base 110 is fixedly connected to the housing 12, and the two supporting parts 112 are symmetrically arranged relative to the central axis X. The base 11 is also provided with two support rod shafts 114, which are respectively connected to the two supporting parts 112, each of which corresponds to one of the supporting parts 112, and each of which is respectively connected to a corresponding clamping assembly 30. The axis of the support rod shaft 114 is perpendicular to the central axis X.

[0073] The shell 12 is circular and concave, and a concave cavity with one side opening is provided inside the shell 12, and the traction assembly 20 is installed in the concave cavity. The shell 12 includes a bottom plate 120 and a side plate 122, and the bottom plate 120 is connected to one end of the side plate 122, and the bottom plate 120 and the side plate 122 are enclosed to form the concave cavity, and the opening of the concave cavity is provided at one end of the side plate 122 away from the bottom plate 120. The base 11 is installed at the other end of the side plate 122, and the base 11 is provided in the concave cavity. In this embodiment, the end surface of the shell 12 at one end of which the bottom plate 120 is provided is defined as the bottom surface of the shell 12, and the end surface of the shell 12 at one end of which the opening of the concave cavity is provided is defined as the opening surface of the shell 12, wherein when the wheel hub clamping device 100 is clamped on the tire, the opening surface of the shell 12 faces the wheel hub, and the back surface of the shell 12 is away from the wheel hub.

[0074] It is understandable that in some other embodiments, the structure of the shell 12 can also be an elliptical concave structure, a long beam structure, a rectangular plate structure, etc., as long as it can provide installation positions for the clamping assembly 30 and the traction assembly 20.

[0075] A positioning through hole 1200 is provided in the middle of the base plate 120, and the positioning through hole 1200 passes through the base plate 120. In the present embodiment, the positioning through hole 1200 is the installation module, and the central axis of the positioning through hole 1200 is the central axis X. The positioning through hole 1200 is used to install various auxiliary calibration equipment, and the auxiliary calibration equipment can be a target with a calibration image, a laser used to locate the vehicle calibration equipment or used in conjunction with the vehicle calibration equipment, a reflective device, etc., which are not limited here. When the wheel hub clamping device 100 is clamped on the wheel, the positioning through hole 1200 is aligned with the center of the wheel hub, that is, the central axis of the positioning through hole 1200 coincides with the central axis of the wheel hub. In the embodiment of the present application, the coincidence of the two central axes can be understood as the positioning hole is at the center of the wheel hub, so as to ensure that the auxiliary calibration device is installed at the center of the wheel hub, and to ensure the accuracy of the calibration calculation of the vehicle by the calibration device. The bottom plate 120 is set to a symmetrical shape, such as a circle, an ellipse, a rectangle, etc. In the present embodiment, the bottom plate 120 is a circle, and the central axis of the positioning through hole 1200 coincides with the central axis of the bottom plate 120 .

[0076] In some other embodiments, in order to strengthen the installation between the auxiliary calibration device and the wheel hub clamping device 100, the installation module may further include a reinforcement structure. For example, a protrusion accommodating the positioning through hole 1200 is extended from the shell 12 in a direction away from the base 11, and a reinforcing structure perpendicular to the central axis of the positioning through hole 1200 is provided on the protrusion. When the auxiliary calibration device is installed in the positioning through hole 1200, the auxiliary calibration device and the positioning through hole 1200 can be fastened and abutted by the reinforcing device. Of course, the reinforcement structure may be implemented in other ways; or the reinforcement structure is provided at the auxiliary calibration device end, or the installation between the wheel hub clamping device 100 and the auxiliary calibration device may be reinforced by independent accessories. The specific implementation of the reinforcement structure is not limited in this application.

[0077] The side plate 122 is provided with two mounting grooves 1220, which penetrate the side plate 122 to connect the concave cavity with the outside, and the position of each mounting groove 1220 corresponds to the position of one of the supporting parts 112. The mounting grooves 1220 are used for the clamping assembly 30 to pass through to connect to the base 11.

[0078] The side plate 122 is also provided with a connecting groove 1222 and a clamping groove 1224, and the connecting groove 1222 and the two clamping grooves 1224 are all through the side plate 122. The connecting groove 1222 is an arc-shaped groove, and the two clamping grooves 1224 are provided on one side of the connecting groove 1222, and the two clamping grooves 1224 are respectively connected to the connecting groove 1222. Each clamping groove 1224 is also provided with a clamping block 1226, and the clamping block 1226 is located at the connection between the clamping groove 1224 and the connecting groove 1222.

[0079] In this embodiment, the base 11 and the housing 12 are separate components, and the base 11 is assembled with the clamping assembly 30 and then installed on the housing 12, which can facilitate the installation of the clamping assembly 30. It can be understood that in some other embodiments, the base 11 and the housing 12 can also be integrally provided, or the base 11 can also be omitted, and the clamping assembly 30 is directly installed on the housing 12.

[0080] The main body 10 also includes an abutment seat 13, which is arranged on the shell 12, and the abutment seat 13 is arranged at one end of the side plate 122 away from the bottom plate 120. The abutment seat 13 is made of a material with relatively low hardness, for example, it is made of elastic materials such as plastic, rubber, and silicone. When the wheel hub clamping device 100 is clamped on the tire, the abutment seat 13 abuts against the end face of the wheel hub, which can prevent the rigid shell 12 from directly contacting the wheel hub and damaging the wheel hub surface. In this embodiment, in order to adapt to the structural shape of the shell 12, the abutment seat 13 is set to a circular ring shape. It can be understood that in some other embodiments, the abutment seat 13 can also be set to other shapes according to actual conditions, such as an elliptical ring shape, a rectangular ring shape, a long strip shape, etc., as long as the shape of the abutment seat 13 is compatible with the shape of the shell 12.

[0081] Please also read Figures 5 and 6The traction assembly 20 is arranged in the middle of the main body 10, and the traction assembly 20 includes a fixed frame 21, a rotating wheel 22, a reset member 23 and a traction member 24. The fixed frame 21 is fixedly mounted on the main body 10, the rotating wheel 22 is rotatably connected to the fixed frame 21, the reset member 23 is connected between the rotating wheel 22 and the fixed frame 21, and the traction member 24 is connected between the rotating wheel 22 and the clamping assembly 30. The rotating wheel 22 is mounted in the middle of the main body 10, and the rotating wheel 22 can rotate relative to the main body 10. The rotating wheel 22 is used to accommodate the traction member 24 so that the traction member 24 can adapt to the movement of the clamping assembly 30. When an external force acts on the clamping assembly 30 to move it in a direction away from the traction assembly 20, the reset member 23 is used to generate a pulling force on the clamping assembly 30 through the traction member 24, so that after the external force is removed, the clamping assembly 30 moves in the direction of the traction assembly 20 under the action of the pulling force, and can be reset to the position when there is no external force, which is convenient for the removal and installation of the wheel hub device on the wheel. In this embodiment, the central axis of the positioning through hole 1200 coincides with the central axis of the traction assembly 20. Here, the coincidence of the two central axes means that the traction assembly is aligned with the center of the wheel hub to ensure that the positioning hole is aligned with the center of the wheel hub, that is, the central axis of the positioning through hole 1200, the central axis of the traction assembly 20 and the central axis of the wheel hub coincide. It can be understood that the coincidence of the above three central axes described in this application, or two of the three central axes, does not require strict coincidence, and a certain error is allowed, that is, each central axis can deviate by a certain angle, as long as it does not affect the calculation and calibration accuracy of the vehicle calibration equipment. Alternatively, the three central axes may deviate by a certain angle, which is compensated by other means, such as calibration calculation algorithms, etc. Here, the coincidence of the central axes described in the present application includes the above-mentioned various situations.

[0082] Please also read Figures 6 to 8The fixing frame 21 includes a first fixing frame 210 and a second fixing frame 212. The first fixing frame 210 is fixedly mounted on the bottom plate 120, and the second fixing frame 212 is connected to the first fixing frame 210. The first fixing frame 210 includes a first substrate 2100 and two positioning posts 2102. The first substrate 2100 is fixed on the bottom plate 120. The two positioning posts 2102 extend from the first substrate 2100 toward the second fixing frame 212, and the two positioning posts 2102 are symmetrical with respect to the central axis X. The second fixing frame 212 includes a second substrate 2120 and two supporting plates 2122. One end of the two supporting plates 2122 is connected to the second substrate 2120, and the other end of the two supporting plates 2122 is connected to the first fixing frame 210. An installation space is provided between the first substrate 2100 and the second substrate 2120, the rotating wheel 22 and the reset member 23 are provided in the installation space, and one end of the traction member 24 extends from the rotating wheel 22 to the outside of the installation space. It is understandable that the number of the support plates 2122 can be increased or decreased according to actual conditions, such as being set to one or three, and it is only necessary to make the number of the support plates 2122 at least one. It is understandable that in some other embodiments, the positions of the first fixing frame 210 and the second fixing frame 212 can be interchanged, for example, the second substrate 2120 of the second fixing frame 212 is installed on the bottom plate 120, and the first fixing frame 210 is installed on two of the support plates 2122.

[0083] The rotating wheel 22 includes a pulley 220 and two rotating shafts 222, the two rotating shafts are respectively connected to the two ends of the pulley 220, and the axis of the pulley 220 and the axes of the two rotating shafts 222 are both coincident with the central axis X. The rotating shaft 222 is a stepped shaft, and each of the rotating shafts 222 includes a first shaft portion 2220 and a second shaft portion 2222, and the diameter of the first shaft portion 2220 is greater than the diameter of the second shaft portion 2222. The first shaft portion 2220 of each rotating shaft 222 is fixedly mounted in the inner hole of the pulley 220, and the second shaft portion 2222 of each rotating shaft 222 extends from the first shaft portion 2220 thereof in a direction away from the pulley 220. The second shaft portion 2222 of one of the rotating shafts 222 is rotatably connected to the first fixing frame 210, and the second shaft portion 2222 of the other rotating shaft 222 is rotatably connected to the second fixing frame 212. The two rotating shafts 222 can drive the pulley 220 to rotate relative to the fixing frame 21. One of the rotating shafts 222 is further provided with an extension shaft portion 2224, and the extension shaft portion 2224 extends from the second shaft portion 2222 of one of the rotating shafts 222 in a direction away from the first shaft portion 2220 thereof. In this embodiment, one of the rotating shafts 222 provided with the extension shaft portion 2224 is connected to the first fixing frame 210, and the extension shaft portion 2224 passes through the first substrate 2100. In some other embodiments, one of the rotating shafts 222 provided with the extension shaft portion 2224 may also be connected to the second fixing frame 212, and the extension shaft portion 2224 passes through the second substrate 2120. It is understandable that the belt pulley 220 may be in a cylindrical shape, an elliptical shape, etc., as long as the rotating wheel 22 has a rotational characteristic. Preferably, the belt pulley 220 is cylindrical.

[0084] The reset member 23 is elastic. When the rotating wheel 22 is rotated by an external force, the reset member 23 is deformed to generate a pulling force on the traction member 24. After the external force on the rotating wheel 22 is released, the reset member 23 recovers its deformation to accommodate the traction member 24 back into the rotating wheel 22. There are two reset members 23. The two reset members 23 are respectively sleeved on the second shaft portions 2222 of the two rotating shafts 222. Each reset member 23 corresponds to one rotating shaft 222. One end of each reset member 23 is fixedly connected to the first shaft portion 2220 of the corresponding rotating shaft 222. The other end of one reset member 23 is fixedly connected to the first fixing frame 210, and the other end of the other reset member 23 is fixedly connected to the second fixing frame 212. In this embodiment, the reset member 23 is a torsion spring. The two torsion springs are respectively arranged at the two ends of the rotating wheel 22. The two ends of the rotating wheel 22 can simultaneously apply a pulling force to the two ends of the rotating wheel 22 to ensure the force balance of the rotating wheel 22. It is understandable that in some other embodiments, the reset member 23 may also be a spring or other elastic part that can apply tension. It is understandable that the number of the reset members 23 may also be increased or decreased according to actual needs, such as one, three, etc., as long as the reset member 23 can satisfy the tension applied to the rotating wheel 22.

[0085] There are two traction members 24, one end of each of which is fixedly connected to the pulley 220, and the two traction members 24 can be wound together and accommodated on the pulley 220. Preferably, the connection point between the two traction members 24 and the pulley 220 is located on a diameter of the pulley 220. The other end of each traction member 24 is connected to a corresponding clamping assembly 30. The traction member 24 can be a strong cloth belt, a steel wire rope, or other solid wire that can be wound around the pulley 220, and the traction member 24 can be elastic or inelastic. The length of the traction member 24 can be suitable for the maximum tire radius, or the length of the traction member 24 is determined as needed. In this embodiment, the traction member 24 is a cloth belt, one end of which is fixed and tied to the outer wall of the pulley 220, and the other end is connected to the clamping assembly 30. When the rotating wheel 22 rotates in the first direction, the two traction members 24 are synchronously separated from the pulley 220; when the rotating wheel 22 rotates in the second direction, the two traction members 24 are synchronously wound around the pulley 220, and each traction member 24 can pull a corresponding clamping assembly 30 to move toward the direction of the central axis X, so that the two clamping assemblies 30 move synchronously relative to the traction assembly 20. The second direction is opposite to the first direction, for example, the first direction is clockwise and the second direction is counterclockwise, or the first direction is counterclockwise and the second direction is clockwise.

[0086] Specifically, when external force is applied to the clamping jaw assembly 30 and causes it to move in a direction away from the rotating wheel 22, the rotating wheel 22 rotates in a first direction relative to the main body 10 to release the traction member 24 while compressing the reset member 23; when the clamping assembly 300 is not affected by external force, the reset member 23 will restore its deformation and drive the rotating wheel 22 to rotate in a second direction, and the rotating wheel 22 will reel in the traction member 24 to pull the clamping assembly 30 to move in the direction of the rotating wheel 22.

[0087] It should be noted that, in some other embodiments, the fixing frame 21 may also be omitted, and the two rotating shafts 222 of the rotating wheel 22 may be directly and rotatably connected to the main body 10, and the two ends of the reset member 23 are respectively connected to the rotating wheel 22 and the main body 10.

[0088] In some embodiments, the traction assembly 20 further includes two fixed pulleys 25, which are respectively mounted on the first fixing frame 210, and each fixed pulley 25 is sleeved on a corresponding positioning column 2102. Each fixed pulley 25 abuts against the middle of a corresponding traction member 24, and each traction member 24 is wound around a corresponding fixed pulley 25, so that the ends of the two traction members 24 away from the rotating wheel 22 are located on the same straight line, so as to prevent the ends of the traction members 24 away from the rotating wheel 22 from being directly led out from the tangential direction of the rotating wheel 22 and connected to the clamping assembly 30.

[0089] Please also read Figure 5 and Fig. 9 The clamping assembly 30 is rotatably connected to the main body 10 , and two clamping assemblies 30 are respectively disposed on both sides of the base 11 , and the two clamping assemblies 30 can rotate relative to the main body 10 .

[0090] The clamping assembly 30 includes a connecting rod 31 and a clamping rod 32, and one end of the connecting rod 31 and one end of the clamping rod 32 are rotatably connected. The other end of the connecting rod 31 passes through the mounting groove 1220 and is connected to the base 11. The connecting rod 31 is rotatably connected to the support rod shaft 114. The connecting rod 31 can rotate relative to the main body 10 around the axis of the support rod shaft 114, thereby driving the clamping rod 32 to rotate. The rotation range of the connecting rod 31 is limited by the two side walls of the support portion 112. When the connecting rod 31 rotates to abut against the support portion 112, it cannot continue to rotate. Preferably, the rotation angle range of the connecting rod 31 does not exceed 90 degrees. The other end of the clamping rod 32 is provided with a hook-shaped clamping claw, and the clamping claw is used to clamp the tire. The connecting rod 31 and the clamping rod 32 form an acute angle when the traction assembly is accommodated in the rotating wheel, so that when the clamping rod 32 rotates relative to the connecting rod 31, the clamping claws of the two clamping rods 32 can extend relative to each other.

[0091] The middle part of the connecting rod 31 is connected to the traction assembly 20, and the traction assembly 20 can apply a pulling force to the connecting rod 31 to make the clamping assembly 30 rotate relative to the main body 10. Specifically, the connecting rod 31 of each clamping assembly 30 is connected to a corresponding one of the traction members 24. Apply external force to the clamping rod 32 to extend it, and the clamping rod 32 moves in the direction away from the traction assembly 20. The clamping rod 32 drives the connecting rod 31 to rotate in the direction away from the traction assembly 20. The traction member 24 pulls the rotating wheel 22 to rotate, and the reset member 23 is compressed. When the main body 10 is abutted against the wheel hub and the clamping claw clamps the tire, the external force is removed to restore the deformation of the reset member 23, thereby providing a reverse rotation force for the rotating wheel 22. If the reverse rotation force is large enough, the reset member 23 can pull the connecting rod 31 to rotate in the direction of the traction assembly 20 through the traction member 24, and the connecting rod 31 drives the clamping assembly 30 to move in the direction of the rotating wheel 22, so that the clamping claw is clamped on the tire.

[0092] It is understandable that in some other embodiments, the clamping assembly 30 can also be other mechanisms, for example, a fixing member and a sliding member cooperating with the fixing member are provided, the fixing member can guide the sliding member to move relative to the fixing member, the fixing member is fixed to the main body 10, one end of the sliding member is connected to the traction member 24, and a clamping claw is provided at the other end of the sliding member, and the traction assembly 20 can pull the sliding member to move relative to the traction member 24 so that the clamping claw of the sliding member clamps the tire. The fixing member and the sliding member can be a guide rail and a slider, respectively, or can be a fixed sleeve and a slide bar, respectively, or can be other sliding mechanisms.

[0093] The clamping assembly 30 also includes a handle 33, and the handle 33 is provided on the clamping rod 32, so that the user can hold it to apply external force to the clamping assembly 30. In this embodiment, the handle 33 is a rubber sleeve mounted on the clamping rod 32, and the rubber sleeve is made of flexible materials such as plastic and rubber, so that the user can hold it more comfortably when saluting. It can be understood that in some other embodiments, the handle 33 can be a raised structure provided on the clamping rod 32, or the handle 33 can also be provided as a semi-annular structure, and the two ends of the handle 33 of the semi-annular structure are respectively connected to the clamping rod 32, so that the user can easily apply external force through the handle 33.

[0094] Please also read Figures 10 to 12 The wheel hub clamping device 100 further includes a locking device, which includes a locking rod 40 and a brake module matched with the locking rod. The locking rod 40 is connected between the rotating wheel 22 and the brake module, and the brake module is arranged on the main body 10. When the external force pulls the traction member 24 to drive the rotating wheel 22 to rotate, the locking rod 40 rotates with the rotating wheel. When the clamping assembly 30 is clamped on the tire, the locking rod 40 is rotated in the opposite direction of the rotation of the rotating wheel by the external force to the position where the brake module is located. The brake module limits the displacement of the locking rod 40, so that the traction member 24 tightens the clamping assembly 30, and then the clamping assembly 30 clamps the tire. Optionally, the traction member 24 can be made of elastic material, which can flexibly cooperate with the reverse rotation of the locking rod 40 to provide elastic tension to tighten the clamping assembly 30.

[0095] Optionally, the number of the brake modules is two or more. Taking the number of the brake modules as two as an example, the brake modules are located in the space through which the locking rod 40 passes, and the two brake modules are located at different positions in the space, so that when the locking rod 40 rotates to two different positions, different locking forces are applied to the rotating wheel 22, thereby enabling the device to be suitable for tires of different sizes and determining the brake module that cooperates with the locking rod 40. A communication mechanism is also provided between the two or more brake modules, so that the locking rod 40 can be rotated to the brake modules at different positions through the communication mechanism.

[0096] The brake module is the slot 1224 on the housing 12, and the communication mechanism is the communication slot 1222 on the housing 12. The communication slot 1222 is arranged along the circumferential direction of the housing 12, so that the locking rod 40 can rotate around the central axis of the rotating wheel 22 in the communication slot 1222. The communication slot 1222 is connected to the slot 1224. As shown in the figure, the depth of the slot 1224 is greater than the depth of the communication slot 1222, wherein the depth direction of the slot 1224 and the communication slot 1222 is the axial direction of the housing 12, so that when the locking rod 40 moves in the communication slot 1222, it can be moved into the slot 1224 by external force, and then the depth wall of the slot 1224 limits the displacement of the locking rod 40, so that the locking rod 40 is locked to the brake module. Alternatively, the braking module further includes the block 1226 disposed between the slot 1224 and the communicating slot 1222 , and the block 1226 can be used to restrict the locking rod within the slot 1224 .

[0097] Optionally, in order to make the locking rod 40 cooperate better with the brake module or make the movement of the locking rod 40 more flexible, the locking rod 40 includes a fixed rod 41 and a handle 42, the fixed rod 41 and the handle 42 are connected by the hinge 43, and the handle 42 can rotate relative to the fixed rod 41, so that the angle between the handle 42 and the fixed rod 41 can be adjusted, and then the handle 42 can be more easily moved to the slot 1224 under the action of external force. One end of the fixed rod 41 is fixedly connected to the extension shaft 2224 of one of the rotating shafts 222, and the other end of the fixed rod 41 is connected to the hinge 43. One end of the handle 42 is connected to the hinge 43, and the handle 42 passes through the connecting groove 1222, so as to provide a hand-held portion for the user. When the rotating wheel 22 rotates, the handle 42 can rotate with the rotating wheel 22 under the drive of the fixed rod 41, and the handle 42 can also move in the opposite direction under the external force applied in the opposite direction until it is stuck in the slot 1224.

[0098] For example, when an external force is applied to the clamping assembly 30 to pull the rotating wheel 22 to rotate in the clockwise direction, the rotating wheel 22 drives the locking rod 40 to rotate clockwise in the connecting groove 1222, wherein the arc length of the connecting groove 1222 along the circumference can be determined based on the tire size, such as its length can be suitable for the maximum tire size, or its length is set to be sufficient not to hinder the arc rotation of the connecting groove 1222; after the clamping assembly 30 is clamped on the tire, an external force is applied to The locking rod 40 is rotated counterclockwise in the connecting groove 1222, which can drive the rotating wheel 22 to slightly rotate counterclockwise in the opposite direction to tighten the traction member 24, thereby tightening the clamping assembly 30, and further clamping the tire with the clamping assembly 30; when the locking rod 40 is rotated to the position of the clamping groove 1224, the handle 42 is pressed into the clamping groove 1224, so that the locking rod 40 is confined in the clamping groove 1224, thereby locking the rotating wheel 22. Specifically, as Fig.11 As shown in , the locking rod 40 is located in the connecting groove 1222, and the rotating wheel 22 is not locked; Fig.12 As shown in the figure, the locking rod 40 is located in one of the slots 1224 and is locked in the block 1226, and the rotating wheel 22 is locked. The locking of the rotating wheel 22 can further enhance the stability of the hub clamping device attached to the wheel, keep the relative position unchanged, and thus accurately position the mounting module.

[0099] It should be noted that the locking rod 40 and the brake module included in the locking device also include other matching methods. For example, the implementation of the locking rod is not limited to the above-mentioned rod-shaped structure. The brake module can be arranged on the inner wall or outer wall of the shell instead of being arranged on the connecting groove on the shell. The locking rod and the brake module only need to provide tension for the reverse braking rotation of the rotating wheel so that the clamping assembly clamps the tire.

[0100] Please also read Figure 12 to Figure 14 The wheel hub clamping device 100 also includes a stretching assembly 50, which is arranged between the clamping assembly 30 and the traction assembly 20. The stretching assembly 50 is elastic. When the locking rod 40 is driven by an external force to rotate the rotating wheel 22, the stretching assembly 50 provides elastic force to enable the clamping assembly 30 to clamp the tire and prevent the traction component from being easily damaged due to excessive reverse tension.

[0101] There are two stretching assemblies 50, each of which is connected between a corresponding traction member 24 and a corresponding clamping assembly 30. Each stretching assembly 50 includes an elastic member 51, a push rod 52, a casing 53, and a pressing block 54. The elastic member 51 is sleeved on the push rod 52, the elastic member 51 and the push rod 52 are accommodated in the casing 53, and one end of the pressing block 54 is connected to the casing 53. The elastic member 51 may be a spring.

[0102] The push rod 52 is a stepped shaft, and a shoulder is provided between the large end and the small end of the push rod 52. The small end of each push rod 52 extends to the outside of the casing 53 toward the direction of the traction assembly 20, and is connected to a corresponding traction member 24. The casing 53 is hollow, and a stepped hole is provided inside the casing 53. The stepped hole includes a large diameter hole and a small diameter hole, and a stepped surface is provided between the large diameter hole and the small diameter hole. The elastic member 51 is sleeved on the small end of the push rod 52 and accommodated in the large diameter hole of the casing 53. The two ends of the elastic member 51 are respectively in contact with the shoulder of the push rod 52 and the stepped surface in the casing 53. When the traction member 24 pulls the push rod 52 to move toward the rotating wheel 22, the elastic member 51 is compressed. Preferably, the diameter of the large end of the push rod 52 is larger than the diameter of the small diameter hole of the casing 53 , so as to prevent the push rod 52 from being completely stretched out of the casing 53 by the traction member 24 .

[0103] The pressing block 54 is also a stepped shaft, the small end of the pressing block 54 is arranged in the sleeve 53, the shoulder of the pressing block 54 abuts against one end of the sleeve 53, and the large end of each pressing block 54 is rotatably connected to a corresponding connecting rod 31. The pressing block 54 is arranged at one end of the sleeve 53 away from the traction assembly 20 to limit the travel range of the push rod 52 and prevent the push rod 52 from escaping from the sleeve 53 in the direction away from the traction assembly 20. It can be understood that in some embodiments, the pressing block 54 can also be omitted, and the end of the sleeve 53 away from the traction assembly 20 is directly connected to the connecting rod 31 of the clamping assembly 30.

[0104] For example, when the clamping assembly 30 is clamped on the tire, an external force is applied to the locking rod 40 to rotate it in the counterclockwise direction, and the locking rod 40 drives the rotating wheel 22 to rotate, and the push rod 52 is pulled toward the rotating wheel 22 by the traction member 24. After the elastic member 51 is compressed, an elastic force is applied to the sleeve 53, so that the clamping assembly 30 connected to the sleeve 53 is subjected to a pulling force in the direction of the rotating wheel 22, thereby further tightening the clamping assembly 30. The tensioning assembly 50 is provided so that the locking rod 40 has more displacement when rotating, so as to reach the positions corresponding to different brake modules, so that the clamping force of the clamping assembly 30 on the tire can be adjusted.

[0105] In the above example, when the number of the brake modules is two or more, the locking rod 40 can cooperate with the first brake module it reaches when rotating counterclockwise, or cooperate with other brake modules it reaches later according to the clamping force requirements.

[0106] It is understandable that in some other embodiments, the stretching assembly 50 may also be other structures, for example, it may be set as only an elastic element, which may be a spring, an elastic rope, etc., and the two ends of the elastic element are respectively connected to the traction member 24 and the clamping assembly 30, or it may be set as other structures with elastic force, which are not limited here.

[0107] Compared with the prior art, in the embodiment of the present invention, one end of the two traction members 24 is respectively connected to the rotating wheel 22, and the other end of each traction member 24 is connected to a corresponding clamping assembly 30 through a corresponding stretching assembly 50. The rotation of the rotating wheel 22 can make the displacement of the two clamping assemblies 30 the same. When the two clamping assemblies 30 are clamped on a diameter of the tire, the central axis X coincides with the central axis of the wheel hub, thereby achieving precise positioning between the wheel hub clamping device 100 and the wheel hub, and making the installation operation process between the wheel hub clamping device 100 and the tire simple and fast.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wheel hub clamping device, characterized in that: include: A main body, wherein the main body is provided with a mounting module, and the mounting module is used to connect an external device; Two clamping assemblies, the two clamping assemblies are respectively connected to opposite ends of the main body, the two clamping assemblies are used to clamp the tire of the wheel so that the wheel hub clamping device is attached to the wheel, and the two clamping assemblies can be extended relative to the main body to reach the edge of the tire; as well as A traction assembly, the traction assembly is mounted on the main body, the traction assembly is respectively connected to the two clamping assemblies, and the traction assembly is used to adjust the extension amplitude of the clamping assembly; Wherein, when the two clamping assemblies are respectively clamped on the tire, the main body abuts against the wheel hub of the wheel, and the central axis of the mounting module coincides with the central axis of the wheel hub; The traction assembly is located in the middle of the main body, and the traction assembly includes a rotating wheel, a traction member and a reset member; The rotating wheel is rotatably connected to the main body; The traction member connects the rotating wheel and the clamping assembly, and the rotating wheel is used to accommodate the traction member so that the traction member can adapt to the movement of the clamping assembly; The reset member is used to generate a pulling force on the clamping assembly through the traction member when an external force pulls the clamping assembly to move in a direction away from the traction assembly; One end of the traction member is connected to the clamping assembly, and the other end of the traction member is wound around the rotating wheel and fixed to the rotating wheel; The traction assembly further includes a fixing frame, and the fixing frame is fixed to the main body; The fixing frame is provided with an installation space, the rotating wheel and the reset member are both accommodated in the installation space, and one end of the traction member extends to the outside of the installation space and is connected to the clamping assembly; The wheel hub clamping device also includes a locking assembly; The locking assembly is connected to the traction assembly, and the locking assembly is used to lock the traction assembly to the main body to limit the rotation of the traction assembly relative to the main body, so that the clamping assembly clamps the tire; The locking assembly comprises a locking rod and a brake module matched with the locking rod, the locking rod is fixedly connected to the rotating wheel, and the brake module is arranged on the main body; When external force pulls the traction member to drive the rotating wheel to rotate, the locking rod rotates with the rotating wheel. When the clamping assembly is clamped on the tire, the locking rod is rotated in the opposite direction of the rotation of the rotating wheel to the position of the brake module by the external force. The brake module limits the displacement of the locking rod so that the traction member tightens the clamping assembly, thereby causing the clamping assembly to clamp the tire.

2. The wheel hub clamping device according to claim 1, characterized in that: The number of the reset members is two, and the two reset members are arranged at two opposite ends of the rotating wheel.

3. The wheel hub clamping device according to claim 2, characterized in that: The reset member is elastic and mounted on the rotating wheel. When the rotating wheel is rotated by an external force, the reset member is deformed to generate a pulling force on the traction member. After the external force is released, the reset member recovers its deformation to accommodate the traction member back into the rotating wheel.

4. The wheel hub clamping device according to claim 2, characterized in that: The reset member is a torsion spring, and two ends of the torsion spring are respectively connected to the main body and the rotating wheel.

5. The wheel hub clamping device according to claim 4, characterized in that: The fixing frame is provided with two positioning columns; The traction assembly further includes two fixed pulleys, each of which is sleeved on a corresponding one of the positioning columns; The middle part of each traction member is wound around a corresponding fixed pulley, so that the ends of the two traction members facing away from the rotating wheel are located on the same straight line.

6. The wheel hub clamping device according to claim 1, characterized in that: The clamping assembly is pivotable relative to the body.

7. The wheel hub clamping device according to claim 6, characterized in that: The clamping assembly comprises a connecting rod and a clamping rod, wherein the connecting rod is pivotally mounted on the main body, and the clamping rod is pivotally connected to the connecting rod; A clamping claw is provided at one end of the clamping rod away from the connecting rod, and the clamping claw is used for clamping the tire.

8. The wheel hub clamping device according to claim 7, characterized in that: The clamping assembly also includes a handle, which is arranged on the clamping rod and is pulled externally to provide external force.

9. The wheel hub clamping device according to claim 1, characterized in that: The wheel hub clamping device further comprises a stretching assembly, wherein the stretching assembly is arranged between the clamping assembly and the traction member; The stretching assembly is elastic. When the locking rod is rotated in the opposite direction of the rotation of the rotating wheel by an external force, the stretching assembly provides elastic force to enable the clamping assembly to clamp the tire.

10. The wheel hub clamping device according to claim 9, characterized in that: Each of the stretching components includes an elastic member, a push rod and a sleeve shell; The push rod is provided with a shaft shoulder, the sleeve shell is provided with a stepped surface inside, the elastic member is sleeved on the push rod and accommodated in the sleeve shell, and the two ends of the elastic member abut against the shaft shoulder and the stepped surface respectively; The push rod is connected to the traction member, and the sleeve is connected to the clamping assembly.

11. The wheel hub clamping device according to claim 10, characterized in that: The stretching assembly also includes a pressing block; One end of the pressing block is connected to the sleeve shell, and the other end of the pressing block is rotatably connected to the clamping assembly.

12. The wheel hub clamping device according to claim 9, characterized in that: The main body comprises a shell and a base, and the shell is connected to the base; The clamping assembly is connected to the base, and the braking module is arranged on the shell.

13. The wheel hub clamping device according to claim 12, characterized in that: The number of the braking modules is at least two, and at least two of the braking modules are located at different positions that the locking rod passes when rotating in the opposite direction of the rotating wheel, so that the stretching assembly provides different elastic forces.

14. The wheel hub clamping device according to claim 13, characterized in that: The brake module is a card slot, and a connecting mechanism is provided between the card slots at different positions, so that the locking rod can be rotated to the position of the card slots at different positions through the connecting mechanism.

15. The wheel hub clamping device according to claim 14, characterized in that: The communication mechanism is a communication groove communicated with the card slot, the locking rod passes through the communication groove, and the locking rod can rotate in the communication groove; The depth of the card slot is greater than the depth of the connecting slot; The locking rod includes a fixing rod and a handle, wherein the fixing rod is fixedly connected to the rotating wheel, the handle passes through the connecting groove, and the handle is connected to the fixing rod in an angle-adjustable manner so that the handle can be displaced between the connecting groove and the clamping groove.

16. The wheel hub clamping device according to claim 12, characterized in that: The shell and the base form a concave cavity with one side open, and the traction assembly is accommodated in the concave cavity; The mounting module is arranged on the bottom surface of the shell, wherein the bottom surface of the shell is a surface facing away from the opening thereof.

17. The wheel hub clamping device according to claim 16, characterized in that: The bottom surface of the housing is symmetrical in shape, and the mounting module is mounted at the center of the bottom surface.

18. The wheel hub clamping device according to claim 17, characterized in that: An abutment seat is provided at one end of the shell body away from the bottom surface, and the abutment seat is used to abut the end surface of the wheel hub when the clamping assembly clamps the tire.

19. The wheel hub clamping device according to claim 18, characterized in that: The base is made of elastic material.

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