WO2021254370A1 - Hub clamping device - Google Patents

Abstract

A hub clamping device comprises a main body, clamping assemblies and a traction assembly. Two clamping assemblies are respectively installed at the main body. The traction assembly is respectively connected to the two clamping assemblies. The traction assembly can adjust a degree of extension of the clamping assemblies, such that the two clamping assemblies simultaneously move relative to the main body, and the two clamping assemblies have the same amount of movement relative to the traction assembly. When the two clamping assemblies are respectively engaged with a tire, a central axis of an installation module coincides with a central axis of a hub, thereby realizing precise positioning between the hub clamping device and the hub. The device can be installed and operated easily and quickly.

Description

Wheel hub clamping device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 202010555978.X, and the application name is "a wheel clamping device" on June 17, 2020, the entire content of which is incorporated into this application by reference middle.

Technical field

This application relates to the field of automobile technology, and in particular to a wheel hub clamping device.

Background technique

In the process of car maintenance (for example, four-wheel alignment, ADAS calibration process), various auxiliary equipment needs to be installed on the wheel hub. The hub clamping device needs to be accurately positioned when installed on the hub, but the existing hub clamping devices are divided into two types, one is that can be installed quickly but cannot be accurately positioned, and the other is that can be accurately positioned but the installation operation is complicated and the installation time is long. .

Summary of the invention

In order to solve the above technical problem, the embodiment of the present invention provides a wheel hub clamping device, which can be accurately positioned with the wheel hub, and the installation method is simple and convenient.

The following technical solutions are adopted in the embodiments of the present invention to solve the technical problems:

A wheel hub clamping device is provided, which includes:

A main body, the main body is provided with an installation module, and the installation module is used to connect an external device;

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

A traction assembly, the traction assembly is installed on the main body, the traction assembly is respectively connected to the two clamping assemblies, and the traction assembly is used to adjust the extent of extension of the clamping assembly;

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

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 restoring member;

The rotating wheel is rotatably connected to the main body;

The traction member is connected to the rotating wheel and the clamping assembly, and the rotating wheel is used for accommodating the traction member so that the traction member can adapt to the movement of the clamping assembly;

The resetting member is used for generating a pulling force on the clamping assembly through the traction member after the clamping assembly is moved away from the traction assembly by the external force.

Optionally, 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.

Optionally, the number of the resetting pieces is two, and the two resetting pieces are provided at opposite ends of the rotating wheel.

Optionally, the resetting member is elastic and installed on the rotating wheel. When the rotating wheel is rotated by an external force, the resetting member is deformed to generate a pulling force on the traction member. After the external force is released, The restoring member recovers from deformation so that the traction member is housed back into the rotating wheel.

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

Optionally, 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 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.

Optionally, the fixing frame is provided with two positioning posts;

The traction assembly further includes two fixed pulleys, each of the fixed pulleys is sleeved on a corresponding one of the positioning posts;

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

Optionally, the clamping assembly can pivot relative to the main body.

Optionally, it is characterized in that the clamping assembly includes 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 ；

A clamping jaw is provided at one end of the clamping rod away from the connecting rod, and the clamping jaw is used for clamping the tire.

Optionally, the clamping assembly further includes a handle, the handle is disposed on the clamping rod, and the handle is pulled by the outside to provide an external force.

Optionally, the wheel hub clamping device further includes a locking component;

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

Optionally, the locking device includes a locking lever and a braking module that cooperates with the locking lever, the locking lever is fixedly connected to the rotating wheel, and the braking module is disposed on the main body;

Wherein, when the external force pulls the traction member to drive the rotating wheel to rotate, the locking rod rotates with the rotating wheel, and when the clamping assembly is clamped to the tire, the locking rod is subjected to The external force rotates in the opposite direction of the rotation of the rotating wheel to the position where the brake module is located. The clamping assembly clamps the tire.

Optionally, the wheel hub clamping device further includes a stretching assembly, and the stretching assembly is disposed between the clamping assembly and the traction member;

The stretching assembly has elasticity. 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 so that the clamping assembly can clamp the tire.

Optionally, each of the stretching components includes an elastic member, a push rod, and a casing;

The push rod is provided with a shaft shoulder, the sleeve is provided with a stepped surface, the elastic member is sleeved on the push rod and is accommodated in the sleeve, and both ends of the elastic member abut against each other The shaft shoulder and the stepped surface;

The push rod is connected with the traction member, and the sleeve is connected with the clamping assembly.

Optionally, the stretching assembly further includes a pressing block;

One end of the pressure block is connected to the casing, and the other end of the pressure block is rotatably connected to the clamping assembly.

Optionally, the main body includes a housing and a base, and the housing is connected to the base;

The clamping assembly is connected to the base, and the braking module is arranged on the housing.

Optionally, the number of the brake modules is at least two, and at least two of the brake modules are located at different positions when the locking rod rotates in the opposite direction of the rotation of the rotating wheel, so that the The stretching components provide different elastic forces.

Optionally, the brake module is a card slot, and a communication mechanism is provided between the card slots in different positions, so that the locking rod can be rotated to the position of the card slot in different positions through the communication mechanism.

Optionally, the communicating mechanism is a communicating groove communicating with the card groove, the locking rod passes through the communicating groove, and the locking rod is rotatable in the communicating groove;

The depth of the card slot is greater than the depth of the communication slot;

The locking rod includes a fixed rod and a handle, the fixed rod is fixedly connected to the rotating wheel, the handle passes through the communication groove, and the handle is angle-adjustably connected to the fixed rod to make the The handle can be displaced between the communicating groove and the card groove.

Optionally, the housing and the base form a concave cavity with an open side, and the traction component is accommodated in the concave cavity;

The bottom surface of the housing is provided with the installation module, wherein the bottom surface of the housing is the side facing away from the opening.

Optionally, the bottom surface of the housing has a symmetrical shape, and the installation module is installed at the center of the bottom surface.

Optionally, an end of the housing facing away from the bottom surface is provided with an abutment seat, and the abutment seat is used for abutting against the end surface of the wheel hub when the clamping assembly clamps the tire.

Optionally, the base is made of elastic material.

Compared with the prior art, in the embodiment of the present invention, the two clamping assemblies are respectively mounted on the main body, the traction assembly is connected to the two clamping assemblies, and the traction assembly can enable the two clamping assemblies. The two clamping components move relative to the main body at the same time, and the displacement of the two clamping components relative to the central axis of the mounting module is the same, when the two clamping components are respectively clamped on the tire , The central axis of the installation module can be overlapped with the central axis of the hub, so as to realize the precise positioning between the hub clamping device and the hub, and the installation operation process is simple and fast.

Description of the drawings

One or more embodiments are exemplified by the accompanying drawings. These exemplified descriptions do not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings are denoted as similar elements, unless there are special Affirm that the figures in the attached drawings do not constitute a limit of proportions.

Fig. 1 is a schematic structural diagram of a wheel hub clamping device provided by one of the embodiments of the present invention;

2 is a schematic diagram of the structure of the main body of the hub clamping device shown in FIG. 1;

Figure 3 is an exploded view of the main body shown in Figure 2;

Fig. 4 is an enlarged view of the main body shown in Fig. 3 at A;

Fig. 5 is a schematic structural view of the wheel hub clamping device shown in Fig. 1 from another perspective, in which some elements are omitted;

Fig. 6 is a schematic structural diagram of the traction assembly of the hub clamping device shown in Fig. 5;

Figure 7 is an exploded view of the traction assembly shown in Figure 6;

Figure 8 is an exploded view of the rotating wheel of the traction assembly shown in Figure 7;

FIG. 9 is a schematic structural diagram of the clamping assembly of the wheel hub clamping device shown in FIG. 5;

Fig. 10 is a schematic structural diagram of the locking assembly of the wheel hub clamping device shown in Fig. 1;

Fig. 11 is a schematic structural view of the wheel hub clamping device shown in Fig. 1 from another perspective, in which some elements are omitted;

Fig. 12 is a schematic structural view of another state of the hub clamping device shown in Fig. 1, in which some elements are omitted;

Fig. 13 is an exploded schematic view of the stretching assembly of the wheel hub clamping device shown in Fig. 12;

Fig. 14 is a cross-sectional view of the stretching assembly shown in Fig. 13.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as being "fixed to" another element, it can be directly on the other element, or there can be one or more elements in between. When an element is said to be "connected" to another element, it can be directly connected to the other element, or there may be one or more intervening elements in between. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present invention. The invention and simplified description do not indicate or imply that the pointed device or element 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.

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

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

Please refer to FIG. 1, one embodiment of the present invention provides a wheel hub clamping device 100, including a main body 10, a traction assembly 20 and a clamping assembly 30. The number of the clamping assembly 30 is two, and the two clamping assemblies 30 are respectively connected to the main body 10, and the two clamping assemblies 30 are respectively extendable relative to the main body 10. The assembly 30 is used to clamp the tires of the wheels. 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 extent of extension of the two clamping assemblies 30.

A mounting module is provided on the main body 10, and the mounting module is used to connect an external device. The mounting module is provided with a central axis X. Preferably, the two clamping assemblies 30 are relative to the central axis X. Symmetrical setting. 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 When the clamping assembly 30 is respectively clamped on the edge of the tire, the central axis X coincides with the central axis of the wheel hub.

Please refer to FIGS. 2 to 4, the main body 10 includes a base 11 and a casing 12, and the base 11 is fixed to the casing 12. The clamping assembly 30 is installed on the base 11, the traction assembly 20 is housed in the casing 12, and the installation module is arranged on the casing 12.

The base 11 includes a base 110 and two supporting parts 112, and the two supporting parts 112 are respectively provided on the base 110. The base 110 is fixedly connected to the housing 12, and the two supporting parts 112 are symmetrically arranged with respect to the central axis X. The base 11 is also provided with two support rod rotation shafts 114, the two support rod rotation shafts 114 are respectively connected to the two support portions 112, and each support rod rotation shaft 114 is opposite to one support portion 112. Correspondingly, each of the supporting rod shafts 114 is respectively connected to a corresponding clamping assembly 30. Wherein, the axis of the support rod shaft 114 is perpendicular to the central axis X.

The housing 12 has a circular inner concave shape, a concave cavity with an opening is provided inside the housing 12, and the traction assembly 20 is installed in the concave cavity. The housing 12 includes a bottom plate 120 and a side plate 122. The bottom plate 120 is connected to one end of the side plate 122. The bottom plate 120 and the side plate 122 form the concave cavity. The opening of the shaped cavity is provided at an end of the side plate 122 facing 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 arranged in the concave cavity. In this embodiment, the end surface of the housing 12 provided with the bottom plate 120 is defined as the bottom surface of the housing 12, and the end surface of the housing 12 provided with the opening of the concave cavity The end surface defines the opening surface of the casing 12, wherein when the hub clamping device 100 is clamped on the tire, the opening surface of the casing 12 faces the hub, and the back surface of the casing 12 is away from the hub.

It is understandable that in some other embodiments, the structure of the housing 12 may also be an elliptical concave structure, a long beam-shaped structure, a rectangular plate-shaped structure, etc., as long as the clamping assembly can be provided. The installation positions of 30 and traction assembly 20 are sufficient.

A positioning through hole 1200 is provided in the middle of the bottom plate 120, and the positioning through hole 1200 penetrates the bottom plate 120. In this 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. The auxiliary calibration equipment can be a target with a calibration image, a laser used for positioning the vehicle calibration equipment or used in conjunction with the vehicle calibration equipment, a reflector, etc., It is not limited here. When the hub clamping device 100 is clamped on the wheel, the positioning through hole 1200 is aligned with the center of the hub, that is, the central axis of the positioning through hole 1200 coincides with the central axis of the hub. In the embodiment of the present application, the overlap of the two central axes can be understood In order to locate the hole at the center of the wheel hub, to ensure that the auxiliary calibration device is installed in the center of the wheel hub, and to ensure the accuracy of the calibration calculation for the vehicle by the calibration device. Wherein, the bottom plate 120 is set in a symmetrical shape, such as a circle, an ellipse, a rectangle, etc., in this embodiment, the bottom plate 120 is a circle, and the central axis of the positioning through hole 1200 and the The central axes of the bottom plate 120 coincide.

In some other embodiments, for the installation between the rigid auxiliary calibration equipment and the wheel hub clamping device 100, the installation module may also include a reinforcement structure, for example, a distance away from the base 11 from the housing 12 The protrusions extending in the direction of the positioning through hole 1200 are provided with a fixing structure perpendicular to the central axis of the positioning through hole 1200. When the auxiliary calibration device is installed in the positioning through hole 1200, the fixing device can be used to make The auxiliary calibration device is tightly abutted with the positioning through hole 1200. Of course, the reinforcement structure can be implemented in other ways; or the reinforcement structure can be arranged at the side of the auxiliary calibration equipment, or the hub clamping device 100 and the auxiliary calibration device can be reinforced by independent accessories. The installation of the room is not limited in this application for the specific realization of the reinforcement structure.

The side plate 122 is provided with two installation grooves 1220, the installation groove 1220 penetrates the side plate 122 to communicate the concave cavity with the outside, and the position of each installation groove 1220 is respectively connected to one The position of the supporting portion 112 corresponds. The mounting groove 1220 is used for the clamping assembly 30 to pass through to connect to the base 11.

The side plate 122 is further provided with a communication groove 1222 and a clamping groove 1224, and the communication groove 1222 and the two clamping grooves 1224 both penetrate the side plate 122. The communication groove 1222 is an arc-shaped groove, two of the clamping grooves 1224 are provided on one side of the communication groove 1222, and the two clamping grooves 1224 are respectively communicated with the communication groove 1222. Each of the card slots 1224 is further provided with a card block 1226, and the card block 1226 is located at the connection between the card slot 1224 and the communication slot 1222.

In this embodiment, the base 11 and the housing 12 are separate components, and the base 11 and the clamping assembly 30 are assembled and then mounted on the housing 12 to facilitate the clamping. Installation of component 30. It can be understood that, in some other embodiments, the base 11 and the housing 12 may also be integrally provided, or the base 11 may also be omitted, and the clamping assembly 30 is directly mounted on the壳12上。 Housing 12 on.

The main body 10 further includes an abutment seat 13, the abutment seat 13 is provided on the housing 12, and the abutment seat 13 is provided on an end of the side plate 122 facing away from the bottom plate 120. The abutment seat 13 is made of a material with a lower hardness, for example, made of elastic materials such as plastic, rubber, or silicone. When the hub clamping device 100 is clamped on the tire, the abutment seat 13 abuts on the end surface of the hub, which can prevent the rigid housing 12 from directly contacting the hub and damaging the surface of the hub. In this embodiment, in order to adapt to the structural shape of the housing 12, the abutment seat 13 is arranged in an annular shape. It is understandable that, in some other embodiments, the abutment seat 13 can also be set in other shapes according to actual conditions, such as an elliptical ring, a rectangular ring, a long strip, etc., and only the abutment seat 13 The shape of 13 can be adapted to the shape of the housing 12.

Please also refer to FIGS. 5 to 6, the traction assembly 20 is disposed in the middle of the main body 10, and the traction assembly 20 includes a fixing frame 21, a rotating wheel 22, a reset piece 23 and a traction piece 24. The fixing frame 21 is fixedly installed on the main body 10, the rotating wheel 22 is rotatably connected to the fixing frame 21, and the reset member 23 is connected between the rotating wheel 22 and the fixing frame 21 The traction member 24 is connected between the rotating wheel 22 and the clamping assembly 30. Wherein, the rotating wheel 22 is installed in the middle of the main body 10, the rotating wheel 22 is rotatable relative to the main body 10, and the rotating wheel 22 is used to receive the traction member 24 so that the traction member 24 Adapt to the movement of the clamping assembly 30. When an external force acts on the clamping assembly 30 to move in a direction away from the traction assembly 20, the resetting member 23 is used to generate a pulling force on the clamping assembly 30 through the traction member 24 so that the external force After the cancellation, the clamping assembly 30 moves in the direction of the traction assembly 20 under the pulling force, and can be reset to the position when there is no external force, which facilitates the disassembly and installation of the 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 hub to ensure that the positioning hole is aligned with the center of the 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 hub coincide. It is understandable that the three central axes described in this application, or the overlap of two of the three central axes, do not require strict coincidence, and certain errors are allowed, that is, the central axes can be deviated 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 can be deviated by a certain angle, which can be compensated by other methods, such as calibration calculation algorithms. Here, the overlap of the central axes described in this application includes the above-mentioned various situations.

6 to 8 together, the fixing frame 21 includes a first fixing frame 210 and a second fixing frame 212, the first fixing frame 210 is fixedly installed on the bottom plate 120, and the second fixing frame 212 Connect with the first fixing frame 210. The first fixing frame 210 includes a first substrate 2100 and two positioning pillars 2102. The first substrate 2100 is fixed on the bottom plate 120. The two positioning pillars 2102 respectively face from the first substrate 2100. The second fixing frame 212 extends in the direction, and the two positioning posts 2102 are symmetrical with respect to the central axis X. The second fixing frame 212 includes a second base plate 2120 and two supporting plates 2122. One ends of the two supporting plates 2122 are respectively connected to the second base plate 2120, and the other ends of the two supporting plates 2122 are respectively connected to the second base plate 2120. The first fixing frame 210 is described. An installation space is provided between the first base plate 2100 and the second base plate 2120, the rotating wheel 22 and the restoring member 23 are provided in the installation space, and one end of the traction member 24 extends from the rotating wheel 22 Extend to the outside of the installation space. It can be understood that the number of the support plates 2122 can be increased or decreased according to actual conditions, for example, it can be set to one or three, and the number of the support plates 2122 can be 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 base plate 2120 of the second fixing frame 212 is installed On the bottom plate 120, the first fixing frame 210 is installed on the two supporting plates 2122.

The rotating wheel 22 includes a pulley 220 and two rotating shafts 222. The two rotating shafts are respectively connected to two ends of the pulley 220. The axis of the pulley 220 and the two rotating shafts 222 The axes are all coincident with the central axis X. The rotating shaft 222 is a stepped shaft, and each rotating shaft 222 includes a first shaft portion 2220 and a second shaft portion 2222. The diameter of the first shaft portion 2220 is larger than the diameter of the second shaft portion 2222. The first shaft portion 2220 of each rotating shaft 222 is fixedly installed in the inner hole of the pulley 220, and the second shaft portion 2222 of each rotating shaft 222 is derived from the first shaft portion. 2220 extends 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 The fixed frame 212, the two rotating shafts 222 can drive the pulley 220 to rotate relative to the fixed frame 21. One of the rotation 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 rotation 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 implementations, In an example, 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 base plate 2120. It is understandable that the shape of the pulley 220 can be cylindrical, elliptical, etc., as long as the rotating wheel 22 has a rotation characteristic. Preferably, the pulley 220 is cylindrical.

The resetting member 23 is elastic. When the rotating wheel 22 is rotated by an external force, the resetting member 23 is deformed to generate a pulling force on the traction member 24. After the external force received by the rotating wheel 22 is released, the The restoring member 23 recovers from deformation so that the traction member 24 is housed back into the rotating wheel 22. The number of the resetting member 23 is two, and the two resetting members 23 are respectively sleeved on the second shaft portions 2222 of the two rotating shafts 222, and each resetting member 23 is connected to one The rotating shaft 222 corresponds. One end of each of the resetting members 23 is fixedly connected to the first shaft portion 2220 of the corresponding one of the rotating shafts 222, and the other end of one of the resetting members 23 is fixedly connected to the first fixing frame 210, The other end of the other resetting member 23 is fixedly connected to the second fixing frame 212. In this embodiment, the restoring member 23 is a torsion spring, and the two torsion springs are respectively provided at both ends of the rotating wheel 22, and a pulling force can be applied to both ends of the rotating wheel 22 at the same time to ensure that the The force of the rotating wheel 22 is balanced. It is understandable that, in some other embodiments, the restoring member 23 may also be a spring or other elastic parts that can apply tension. It is understandable that the number of the resetting members 23 can also be increased or decreased according to actual needs, such as one, three, etc., as long as the resetting members 23 can satisfy the pulling force applied to the rotating wheel 22.

The number of the traction member 24 is two, and one ends of the two traction members 24 are respectively fixedly connected to the pulley 220, and the two traction members 24 can be wound and housed on the pulley 220 together. 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 respectively connected with a corresponding one of the clamping assemblies 30. Wherein, the traction member 24 may be a strong cloth belt, a steel wire rope, or other solid wires that can be wound around the pulley 220, and the traction member 24 may be elastic or inelastic. The length of the traction member 24 may be suitable for the maximum tire radius, or the length of the traction member 24 may be determined as required. In this embodiment, the traction member 24 is a cloth belt, one end of the cloth belt 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 pulleys 220. The pulley 220, and each of the traction members 24 can pull a corresponding one of the clamping assemblies 30 to move toward the direction of the central axis X, so that the two clamping assemblies 30 are relative to the traction assembly The movement of 20 is synchronized. Wherein, 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.

Specifically, when an external force is applied to the clamping jaw assembly 30 and moves in a direction away from the rotating wheel 22, the rotating wheel 22 rotates relative to the main body 10 in a first direction to release the traction member 24 while compressing the restoring member 23; when the clamping assembly 300 is not affected by external force, the restoring member 23 will resume deformation, driving the rotating wheel 22 to rotate in the second direction, and the rotating wheel 22 will retract The pulling member 24 is rolled to pull the clamping assembly 30 to move in the direction of the rotating wheel 22.

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 can be directly connected to the main body 10 rotatably, and the reset The two ends of the piece 23 are respectively connected to the rotating wheel 22 and the main body 10.

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

Please refer to FIGS. 5 and 9 together, the clamping assembly 30 is rotatably connected to the main body 10, the two clamping assemblies 30 are respectively provided on both sides of the base 11, and the two clamps The holding assembly 30 can rotate with respect to the main body 10 respectively.

The clamping assembly 30 includes a connecting rod 31 and a clamping rod 32, 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 supporting rod shaft 114, and the connecting rod 31 can go around the supporting rod. The axis of the rotating shaft 114 rotates relative to the main body 10 to drive the clamping rod 32 to rotate. Wherein, the rotation range of the connecting rod 31 is restricted by the two side walls of the supporting portion 112. When the connecting rod 31 rotates until the supporting portion 112 abuts, it cannot continue to rotate. Preferably, the 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 jaw for clamping the tire. The connecting rod 31 and the clamping rod 32 are at an acute angle when the traction assembly is housed in the rotating wheel, so that when the clamping rod 32 rotates relative to the connecting rod 31, the two clamping rods The clamping jaws of 32 can be relatively extended.

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 traction member 24. Applying an external force to the clamping rod 32 to extend it, the clamping rod 32 moves in a direction away from the traction assembly 20, and the clamping rod 32 drives the connecting rod 31 to move 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 abuts against the hub and the clamping jaws hold the tire, the external force is removed to make the reset member 23 Deformation is restored to provide a reverse rotation force for the rotating wheel 22. If the reverse rotation force is large enough, the resetting member 23 can pull the connecting rod 31 through the traction member 24 to rotate toward the traction assembly 20, The connecting rod 31 drives the clamping assembly 30 to move in the direction of the rotating wheel 22, so that the clamping jaws are clamped on the tire.

It is understandable that, in some other embodiments, the clamping assembly 30 may also be other mechanisms, for example, a fixing part and a sliding part that cooperates with the fixing part are provided, and the fixing part can guide the sliding part. Moving relative to the fixing part, the fixing part is fixed to the main body 10, one end of the sliding part is connected to the traction part 24, and the other end of the sliding part is provided with a clamping claw, and the traction assembly 20 can be pulled The sliding member moves relative to the traction member 24 so that the clamping jaws of the sliding member clamp the tire. Wherein, the fixed part and the sliding part may be a guide rail and a sliding block respectively, or may be a fixed sleeve and a sliding rod respectively, or may also be other sliding mechanisms.

The clamping assembly 30 further includes a handle 33 provided on the clamping rod 32 to facilitate the user to hold and apply external force to the clamping assembly 30. In this embodiment, the handle 33 is a rubber sleeve sleeved on the clamping rod 32, and the rubber sleeve is made of flexible materials such as plastic, rubber, etc., so that the user can hold and give more comfort. It is understandable that, in some other embodiments, the handle 33 may be a protruding structure provided on the clamping rod 32, or the handle 33 may also be provided in a semi-annular structure or a semi-annular structure. Both ends of the handle 33 are respectively connected to the clamping rod 32 so that the user can conveniently apply external force through the handle 33.

Please refer to FIGS. 10 to 12 together. The wheel hub clamping device 100 further includes a locking device. The locking device includes a locking rod 40 and a brake module that cooperates with the locking rod. The 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 an 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 to the tire, the locking rod 40 Receiving an external force, it rotates in the opposite direction of the rotation of the rotating wheel to the position of the brake module, and the brake module restricts the displacement of the locking rod 40, so that the traction member 24 tightens the clamping assembly 30, so that the clamping assembly 30 clamps the tire. Optionally, the traction member 24 may be made of an 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.

Optionally, the number of brake modules is two or more. Taking the number of brake modules as two as an example, the brake modules are located in the space passed by the locking rod 40, and two The braking module is 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 making the device applicable For tires of different sizes, a brake module to be matched with the locking rod 40 is determined. A communication mechanism is also provided between two or more of the brake modules, so that the locking rod 40 can be rotated to the brake modules in different positions through the communication mechanism.

Wherein, the brake module is the slot 1224 on the housing 12, and the communication mechanism is the communication groove 1222 on the housing 12. The communicating groove 1222 is arranged along the circumferential direction of the housing 12 so that the locking rod 40 can rotate in the communicating groove 1222 around the central axis of the rotating wheel 22. The communicating groove 1222 communicates with the clamping groove 1224. As shown in the figure, the depth of the clamping groove 1224 is greater than the depth of the communicating groove 1222, wherein the depth direction of the clamping groove 1224 and the communicating groove 1222 is The axial direction of the housing 12, so that when the locking rod 40 moves in the communicating groove 1222, it can be moved into the groove 1224 by an external force, and the depth wall of the groove 1224 restricts the The displacement of the locking rod 40 realizes that the locking rod 40 is locked to the brake module. Alternatively, the brake module further includes the clamping block 1226 arranged between the clamping slot 1224 and the communicating groove 1222, and the clamping block 1226 can be used to restrict the locking rod in the clamping slot 1224 .

Optionally, in order to make the locking rod 40 better cooperate with the brake module, or to 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 be rotated relative to the fixed rod 41, so that the angle between the handle 42 and the fixed rod 41 can be adjusted, thereby The handle 42 can be moved to the slot 1224 more easily under the action of external force. One end of the fixed rod 41 is fixedly connected with the extension shaft portion 2224 of one of the rotating shafts 222, and the other end of the fixed rod 41 is connected with the hinge 43. One end of the handle 42 is connected to the hinge 43. The handle 42 passes through the communicating groove 1222 to provide a hand-held part for the user. When the rotating wheel 22 rotates, the handle 42 can be fixed in the fixed position. Driven by the rod 41, with the rotation of the rotating wheel 22, the handle 42 can also be moved in the reverse direction by the external force applied in the reverse direction until it is locked in the slot 1224.

For example, when an external force is applied to the clamping assembly 30 to pull the rotating wheel 22 to rotate in a clockwise direction, the rotating wheel 22 drives the locking rod 40 to rotate clockwise in the communicating groove 1222, wherein The arc length of the communicating groove 1222 along the circumference can be determined based on the tire size, for example, its length can be suitable for the largest tire size, or its length can be set enough not to hinder the arc rotation of the communicating groove 1222; when the clamping After the assembly 30 is clamped in the tire, an external force is applied to the locking rod 40 to rotate in the counterclockwise direction in the communicating groove 1222, and the rotating wheel 22 can be driven to rotate slightly counterclockwise in the reverse direction to tighten the The traction member 24 tightens the clamping assembly 30 and further enables the clamping assembly 30 to clamp the tire; when the locking rod 40 rotates to the position of the clamping groove 1224, the handle 42 is pressed Into the slot 1224, so that the locking rod 40 is restricted in the slot 1224, so that the rotating wheel 22 is locked. Specifically, as shown in FIG. 11, the locking rod 40 is located in the communicating groove 1222, and the rotating wheel 22 is not locked; as shown in FIG. 12, the locking rod 40 is located at a place In the card slot 1224 and locked in the card block 1226, the rotating wheel 22 is locked. The locking of the rotating wheel 22 can further enhance the stability of the wheel hub clamping device attached to the wheel and keep the relative position unchanged, thereby enabling precise positioning of the mounting module.

It should be noted that the locking rod 40 and the brake module included in the locking device also include other ways of cooperation. For example, the realization of the locking rod is not limited to the above-mentioned rod-shaped structure, and the brake module can be provided On the inner or outer wall of the shell, instead of the communication groove provided on the shell, the locking rod and the brake module only need to realize the tension that can provide the reverse braking rotation of the rotating wheel so that the clamping assembly can clamp the tire. .

Please refer to FIGS. 12 to 14 together. The wheel hub clamping device 100 further includes a stretching assembly 50. The stretching assembly 50 is disposed between the clamping assembly 30 and the traction assembly 20. The extension assembly 50 has elasticity. When the locking rod 40 is driven by the external force to rotate the rotating wheel 22, the extension assembly 50 provides elastic force so that the clamping assembly 30 can clamp the tire and avoid the traction member. Excessive reverse pulling force can cause damage easily.

The number of the stretching assembly 50 is two, and each stretching assembly 50 is respectively connected between a corresponding one of the traction member 24 and a corresponding one of the 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, and the elastic member 51 and the push rod 52 is housed in the casing 53, and one end of the pressure block 54 is connected to the casing 53. Wherein, the elastic member 51 may be a spring.

The push rod 52 is a stepped shaft, a shoulder is provided between the large end and the small end of the push rod 52, and the small end of each push rod 52 extends in the direction of the traction assembly 20 to the sleeve. The shell 53 is outside and connected to the corresponding traction member 24. The casing 53 is hollow, and the casing 53 is provided with a stepped hole inside. 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 is received in the large-diameter hole of the casing 53, and both ends of the elastic member 51 abut against the push rod 52. When the traction member 24 pulls the push rod 52 to move toward the rotating wheel 22 on the shaft shoulder and the stepped surface in the casing 53, 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 sleeve 53 to prevent the push rod 52 from being completely stretched out of the sleeve 53 by the traction member 24.

The pressure block 54 is also a stepped shaft. The small end of the pressure block 54 is provided in the casing 53, and the shoulder of the pressure block 54 abuts against one end of the casing 53, each of the The large end of the pressing block 54 is rotatably connected to the corresponding one of the connecting rods 31. The pressure block 54 is provided at an end of the casing 53 away from the traction assembly 20 to limit the stroke range of the push rod 52 and prevent the push rod 52 from separating from the traction assembly 20 in a direction away from the traction assembly 20. Set of 53. It is understandable that, in some embodiments, the pressing block 54 may also be omitted, and the end of the casing 53 away from the traction assembly 20 is directly connected to the connecting rod 31 of the clamping assembly 30 .

For example, when the clamping assembly 30 is clamped on the tire, an external force is applied to the locking rod 40 to rotate in a counterclockwise direction, and the locking rod 40 drives the rotating wheel 22 to rotate, passing the The traction member 24 pulls the push rod 52 to move in the direction of the rotating wheel 22, and the elastic member 51 is compressed and then applies an elastic force to the casing 53, so that the The clamping assembly 30 receives a pulling force in the direction of the rotating wheel 22 to further tighten the clamping assembly 30. The setting of the stretching assembly 50 can make the locking rod 40 have more displacement when rotating, so as to reach the corresponding positions of different brake modules, so that the clamping assembly 30 to the tire can be adjusted. Hold on.

In the above example, when the number of brake modules is two or more, when the locking rod 40 rotates counterclockwise, it can cooperate with the first brake module it reaches, or according to the clamping force It needs to cooperate with other brake modules that will arrive thereafter.

It is understandable that, in some other embodiments, the stretching assembly 50 may also have other structures, for example, only one elastic element may be provided, and the elastic element may be a spring, an elastic cord, etc., both ends of the elastic element The traction member 24 and the clamping assembly 30 may be connected separately, or other structures with elastic force may be provided, which is not limited here.

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 passes through a corresponding stretching assembly 50. Connect a corresponding clamping assembly 30, 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 exactly coincides with the central axis of the hub, so that precise positioning between the hub clamping device 100 and the hub can be achieved, and the installation operation between the hub clamping device 100 and the tire can be simple and fast.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; under the idea of the present invention, the technical features of the above embodiments or different embodiments can also be combined. The steps can be implemented in any order, and there are many other variations in the different aspects of the present invention as described above. For the sake of brevity, they are not provided in details; although the present invention has been described in detail with reference to the foregoing embodiments, the ordinary person in the art The technical personnel should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the implementations of the present invention Examples of the scope of technical solutions.

Claims (24)

1. A wheel hub clamping device is characterized in that it comprises:

   A main body, the main body is provided with an installation module, and the installation module is used to connect an external device;

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

   A traction assembly, the traction assembly is installed on the main body, the traction assembly is respectively connected to the two clamping assemblies, and the traction assembly is used to adjust the extent of extension of the clamping assembly;

   Wherein, when the two clamping components are respectively clamped on the tire, the main body abuts against the hub of the wheel, and the central axis of the mounting module coincides with the central axis of the hub.
2. The wheel hub clamping device according to claim 1, wherein 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 is connected to the rotating wheel and the clamping assembly, and the rotating wheel is used for accommodating the traction member so that the traction member can adapt to the movement of the clamping assembly;

   The resetting member is used for generating a pulling force on the clamping assembly through the traction member after the clamping assembly is moved away from the traction assembly by the external force.
3. The wheel hub clamping device according to claim 2, wherein 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.
4. The wheel hub clamping device according to claim 3, wherein the number of the resetting parts is two, and the two resetting parts are provided at opposite ends of the rotating wheel.
5. The wheel hub clamping device according to claim 4, wherein the resetting member is elastic and is installed on the rotating wheel, and when the rotating wheel is rotated by an external force, the resetting member is deformed to generate an alignment After the pulling force of the traction member and the external force are released, the resetting member resumes deformation so that the traction member is housed back into the rotating wheel.
6. The wheel hub clamping device according to claim 4, wherein the restoring member is a torsion spring, and two ends of the torsion spring are respectively connected to the main body and the rotating wheel.
7. The wheel hub clamping device according to claim 2, wherein the traction assembly further comprises 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 restoring member are both accommodated in the installation space, and one end of the traction member extends to the outside of the installation space to be connected to the clamping assembly.
8. The wheel hub clamping device according to claim 7, wherein the fixing frame is provided with two positioning posts;

   The traction assembly further includes two fixed pulleys, each of the fixed pulleys is sleeved on a corresponding one of the positioning posts;

   The middle part of each traction member is wound around a corresponding fixed pulley, so that the ends of the two traction members away from the rotating wheel are located on the same straight line.
9. The wheel hub clamping device according to claim 2, wherein the clamping assembly is pivotable relative to the main body.
10. The wheel hub clamping device according to claim 9, wherein the clamping assembly includes a connecting rod and a clamping rod, the connecting rod is pivotally mounted on the main body, and the clamping rod is pivotable Rotatably 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.
11. The wheel hub clamping device according to claim 10, wherein the clamping assembly further comprises a handle, the handle is disposed on the clamping rod, and the handle is pulled by the outside to provide an external force.
12. The hub clamping device according to any one of claims 2-11, wherein the hub clamping device further comprises a locking component;

    The locking component is connected to the traction component, and the locking component is used to lock the traction component to the main body, so as to limit the rotation of the traction component relative to the main body, so that the clamping The assembly clamps the tire.
13. The wheel hub clamping device according to claim 12, wherein the locking device comprises a locking rod and a braking module matched with the locking rod, and the locking rod is fixedly connected with the rotating wheel, The braking module is arranged on the main body;

    Wherein, when the external force pulls the traction member to drive the rotating wheel to rotate, the locking rod rotates with the rotating wheel, and when the clamping assembly is clamped to the tire, the locking rod is subjected to The external force rotates in the opposite direction of the rotation of the rotating wheel to the position where the brake module is located. The clamping assembly clamps the tire.
14. The wheel hub clamping device according to claim 13, wherein the wheel hub clamping device further comprises a stretching assembly, and the stretching assembly is disposed between the clamping assembly and the traction member;

    The stretching assembly has elasticity. 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 so that the clamping assembly can clamp the tire.
15. The wheel hub clamping device according to claim 14, wherein each of the stretching components includes an elastic member, a push rod and a casing;

    The push rod is provided with a shoulder, the sleeve is provided with a stepped surface, the elastic member is sleeved on the push rod and is accommodated in the sleeve, and both ends of the elastic member abut against each other The shaft shoulder and the stepped surface;

    The push rod is connected with the traction member, and the sleeve is connected with the clamping assembly.
16. The wheel hub clamping device according to claim 15, wherein the stretching assembly further comprises a pressure block;

    One end of the pressure block is connected to the casing, and the other end of the pressure block is rotatably connected to the clamping assembly.
17. The wheel hub clamping device according to claim 14, wherein the main body comprises a shell and a base, and the shell is connected with the base;

    The clamping assembly is connected to the base, and the braking module is arranged on the housing.
18. The wheel hub clamping device according to claim 17, wherein the number of the brake modules is at least two, and at least two of the brake modules are located at the position where the locking rod rotates toward the rotating wheel. It passes through different positions when rotating in the opposite direction, so that the stretching assembly provides different elastic forces.
19. The wheel hub clamping device according to claim 18, wherein the brake module is a slot, and a communication mechanism is provided between the slot in different positions, so that the locking rod passes through the communication mechanism The position of the card slot that is rotated to a different position.
20. The wheel hub clamping device according to claim 19, wherein the communicating mechanism is a communicating groove communicating with the card groove, the locking rod passes through the communicating groove, and the locking rod can Rotating in the communicating groove;

    The depth of the card slot is greater than the depth of the communication slot;

    The locking rod includes a fixed rod and a handle, the fixed rod is fixedly connected to the rotating wheel, the handle passes through the communication groove, and the handle is angle-adjustably connected to the fixed rod to make the The handle can be displaced between the communication groove and the card groove.
21. The wheel hub clamping device according to claim 17, wherein the housing and the base form a concave cavity with an open side, and the traction assembly is accommodated in the concave cavity;

    The bottom surface of the casing is provided with the installation module, wherein the bottom surface of the casing is the side facing away from the opening.
22. 22. The wheel hub clamping device according to claim 21, wherein the bottom surface of the housing has a symmetrical shape, and the mounting module is installed at the center of the bottom surface.
23. The wheel hub clamping device according to claim 22, wherein the end of the housing facing away from the bottom surface is provided with an abutment seat, and the abutment seat is used for abutting when the clamping assembly is holding the tire. The end face of the hub.
24. The wheel hub clamping device according to claim 23, wherein the base is made of an elastic material.

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