CN213035808U - Hub clamping device - Google Patents

Abstract

The embodiment of the utility model discloses hub clamping device, include: a main body; a guide assembly connected with the main body; the two clamping jaw assemblies are arranged on the guide assembly, are respectively positioned on two opposite sides of the main body and are used for being clamped on the wheel hub; the traction module is arranged on the main body and is connected with the jaw assemblies on two sides, and the two jaw assemblies are symmetrical about the central axis of the traction module; the traction module is used for driving the other jaw assembly to synchronously move the same distance towards the traction module when one jaw assembly is stressed and moves towards the direction close to the traction module, so that the central axis of the traction module is always coincided with the central axis of the hub. Therefore, only two jaw assemblies need to be pulled to be matched with the size of the hub, the two jaw assemblies can be quickly installed on the hub, installation time is saved, meanwhile, the central axis of the traction module coincides with the central axis of the hub, and accurate positioning of wheels is facilitated.

Description

Hub clamping device

Technical Field

The embodiment of the utility model provides a relate to car technical field, especially relate to a hub clamping device.

Background

The automobile is an important transportation tool which is indispensable in people's life, and the driving performance of the automobile is closely related to the life safety of people. In order to ensure the driving performance of the automobile, parts on the automobile need to be calibrated regularly or according to requirements after leaving the factory, and in the calibration process, an auxiliary calibration device needs to be attached to a wheel of the automobile through a hub clamping device for assisting the positioning of a calibration device of the automobile or assisting the calibration device of the automobile to position the wheel.

In the process of implementing the invention, the inventor of the invention finds that: currently, the existing hub clamping device is usually installed between the tire and the hub by repeatedly screwing the screw to adjust the position of the claw. However, such a hub clamping device is time consuming to install and inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an embodiment of the utility model provides a.

The embodiment of the utility model provides a solve its technical problem and adopt following technical scheme:

a hub clamping device comprising:

a main body;

a guide assembly connected to the main body;

the two jaw assemblies are arranged on the guide assembly, are respectively positioned on two opposite sides of the main body, can move along the guide assembly, and are used for being clamped on a hub so that the hub clamping device is attached to the hub;

the traction module is arranged on the main body and is connected with two jaw assemblies, the two jaw assemblies are positioned on two sides of the traction module, and the two jaw assemblies are symmetrical about the central axis of the traction module;

when one jaw assembly is stressed and moves towards the direction close to the traction module, the traction module drives the other jaw assembly to synchronously move towards the direction close to the traction module for the same distance, so that the traction module is always positioned at the centers of the two jaw assemblies, and the central axis of the traction module is always coincided with the central axis of the hub.

Optionally, the guide assembly includes a first guide post, a second guide post and two connecting pieces, one of the two ends of the connecting piece is connected with one end of the first guide post and one end of the second guide post, the other of the two ends of the connecting piece is connected with the other end of the first guide post and the other end of the second guide post, wherein the main body is fixedly mounted in the middle of the first guide post and the second guide post, and the two jaw assemblies are close to or away from each other along the first guide post and the second guide post.

Optionally, the guide assembly includes a guide rail and at least two sliding blocks, the sliding blocks are mounted on the guide rail and slide along the guide rail, the main body is mounted in the middle of the guide rail, and at least one sliding block is mounted on each of the two jaw assemblies.

Optionally, the jaw assembly includes a base, at least one extension arm, and at least one jaw, the base is connected with the extension arm, one jaw is correspondingly installed on one extension arm, the base is connected with the guide assembly, and the base moves along the guide assembly.

Optionally, the traction module includes rotor plate, first connecting rod and second connecting rod, the rotor plate rotationally install in the main part, first connecting rod and the one end of second connecting rod all with the rotor plate is connected, the other end of first connecting rod with one the jack catch subassembly is connected, the other end of second connecting rod with another the jack catch subassembly is connected.

Optionally, the locking mechanism further comprises a locking module, the locking module is mounted on the main body, and the locking module is used for locking the traction module so that the jaw assembly clamps the hub.

Optionally, the locking module includes a sawtooth rack, a pawl assembly, a limit rod and a handle, the sawtooth rack is mounted on the rotating plate, one end of the limit rod is connected with the pawl assembly, the other end of the limit rod is rotatably connected to the main body, the pawl assembly is connected with the handle, and one end of the handle is rotatably mounted on the main body;

when the handle rotates, the pawl assembly moves along with the handle, when the pawl assembly is meshed with the sawtooth rack, the rotating plate is in a locking state, and when the pawl assembly is separated from the sawtooth rack, the rotating plate is in an unlocking state.

Optionally, the sawtooth strip and the rotating plate are integrally formed.

Optionally, the pawl subassembly includes movable block, pawl and connecting piece, the movable block with the gag lever post is connected, the one end of pawl rotationally install in the movable block, the other end of pawl is used for colluding grabs the sawtooth rack, the one end of connecting piece with the movable block is connected, the other end of connecting piece with the handle is connected.

Optionally, the connecting piece is a tension spring, one end of the tension spring is connected with the movable block, and the other end of the tension spring is connected with the handle.

Optionally, the main body is provided with a lifting block;

the locking module further comprises a torsion spring, the torsion spring is mounted on the movable block, one end of the torsion spring is abutted against the movable block, the other end of the torsion spring is abutted against the pawl, and the torsion spring is used for providing pressure towards the sawtooth strip for the pawl;

when the pawl moves towards the direction of the lifting block, so that the lifting block is inserted between the pawl and the sawtooth strip, and the pawl and the sawtooth strip are separated, the rotating plate is in an unlocking state, and when the pawl moves towards the direction far away from the lifting block, so that the pawl and the sawtooth strip are not separated by the lifting block any more, the pawl moves towards the sawtooth strip and is meshed with the sawtooth strip under the action of the torsion spring, so that the rotating plate is in a locking state.

Optionally, the locking module still includes the connecting axle, the handle is equipped with first spout and second spout, first spout with the second spout symmetry set up in the both sides of handle, the connecting axle install in first spout with between the second spout, the extension spring is connected the connecting axle rotates the handle, so that the connecting axle in first spout and slide in the second spout, thereby the pulling the movable block drives the pawl removes.

Optionally, the locking module further comprises a limiting block, one end of the limiting block is rotatably connected with the main body, and the other end of the limiting block is rotatably connected with the handle.

Optionally, the hub clamping device further comprises a restoring member, one end of the restoring member is fixed to the main body, and the other end of the restoring member is connected to the pawl.

The embodiment of the utility model provides a beneficial effect is: the embodiment of the utility model provides a pair of hub clamping device, include: a main body; a guide assembly connected to the main body; the two jaw assemblies are arranged on the guide assembly, are respectively positioned on two opposite sides of the main body, can move along the guide assembly, and are used for being clamped on a hub so that the hub clamping device is attached to the hub; the traction module is arranged on the main body and is connected with two jaw assemblies, the two jaw assemblies are positioned on two sides of the traction module, and the two jaw assemblies are symmetrical about the central axis of the traction module; when one jaw assembly is stressed and moves towards the direction close to the traction module, the traction module drives the other jaw assembly to synchronously move towards the direction close to the traction module for the same distance, so that the traction module is always positioned at the centers of the two jaw assemblies, and the central axis of the traction module is always coincided with the central axis of the hub. Therefore, a user only needs to pull two claw assemblies and the hub are matched in size, the two claw assemblies can be quickly installed on the hub, installation time is saved, and meanwhile the central axis of the traction module is overlapped with the central axis of the hub, so that accurate positioning of wheels is facilitated.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic structural view of a hub holding device according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle of FIG. 1;

FIG. 3 is an exploded view of the body of FIG. 1;

FIG. 4 is an assembled schematic view of the guide assembly and jaw assembly of FIG. 1;

FIG. 5 is a schematic diagram of a portion of the structure of FIG. 1;

FIG. 6 is a schematic diagram of a portion of the structure of FIG. 5;

FIG. 7 is a schematic diagram of a portion of the structure of FIG. 2;

FIG. 8 is a schematic view of a portion of the structure of FIG. 7;

FIG. 9 is a schematic structural view of the pawl assembly of FIG. 8;

fig. 10 is a schematic view of the handle of fig. 8 in another position.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like as used herein are used in the description to indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

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

As shown in fig. 1-2, the present invention provides a hub clamping device 900, which comprises a main body 100, a guide assembly 200, two jaw assemblies 300 and a traction module 400, wherein the guide assembly 200 is connected to the main body 100, the two jaw assemblies 300 are mounted to the guide assembly 200 and can move along the guide assembly 200, the traction module 400 is mounted to the main body 100, and the traction module 400 is connected to the two jaw assemblies 300. Wherein the two jaw assemblies 200 are respectively located at opposite sides of the body 100 and the traction module 400, and the two jaw assemblies 300 are symmetrical about a central axis of the traction module 400.

When one of the jaw assemblies 300 is forced and moves in a direction approaching the traction module 400, the traction module 400 drives the other jaw assembly 300 to move synchronously in a direction approaching the traction module 400 by the same distance, so that the traction module 400 is always at the center of the two jaw assemblies 300, and the central axis of the traction module 400 is always coincident with the central axis of the hub.

Referring to fig. 3, for the main body 100, the main body 100 is provided with an installation module, the installation module is used for connecting an external device, the installation module is provided with a central axis X, and preferably, the two jaw assemblies 300 are symmetrically arranged relative to the central axis X. The traction module 400 can pull two jaw assemblies 300 to move relative to the main body 100 at the same time, and the two jaw assemblies 300 have the same displacement relative to the central axis X, so that when the two jaw assemblies 300 are respectively clamped on a hub, the central axis X coincides with the central axis of the hub. In some embodiments, the mounting module may be an annular convex ring extending from the housing 120 in a direction away from the traction module 400, the annular convex ring is provided with a through hole for mounting the auxiliary calibration device, a central axis of the through hole is the central axis X, and the central axis X coincides with a central axis of the traction module 400. Of course, the installation module may be implemented in other ways, and is not limited to the structure of the annular collar mentioned herein, as long as the auxiliary calibration device can be fixed to the clamping device 900, and the specific implementation of the installation module is not limited in this application.

It will be appreciated that the auxiliary alignment device may be a target with an alignment image, a laser for positioning or cooperating with the vehicle alignment device, a light reflecting device, etc., and is not limited herein. When the hub clamping device 900 is clamped on a hub, the center of the traction module is aligned with the center of the hub, that is, the central axis of the traction module 400 coincides with the central axis of the hub, and the central axis of the installation module also coincides with the central axis of the hub.

The main body 100 includes a housing 110, a mounting plate 120, and a cover 130, wherein the mounting plate 120 is fixedly mounted to the housing 110, the cover 130 is detachably mounted to the housing 110, the guide assembly 200 is coupled to the mounting plate 120, the traction module 400 is mounted to the mounting plate 120, and the mounting module is mounted to the housing 110. In other embodiments, the housing cover 130 may be omitted, i.e., the main body 100 is composed of the housing 110 and the mounting plate 120. Of course, in some embodiments, the housing 110 and the cover 130 can be omitted, and the main body 100 is the mounting plate 120, and the mounting module is disposed on the mounting plate 120.

The housing 110 includes a bottom plate 111 and a surrounding plate 112, the bottom plate 111 is connected to the surrounding plate 112 to form a receiving space, and the mounting plate 120 is mounted on the bottom plate 111 and received in the receiving space. The surrounding plate 112 has a first opening 1121, a second opening 1122 and a third opening 1123, the first opening 1121 and the second opening 1122 are symmetrically disposed on two sides of the housing 110, and the third opening 1123 is located between the first opening 1121 and the second opening 1122.

The mounting plate 120 is mounted on the base plate 111, the mounting plate 120 includes a base plate 121, a first receiving portion 122 and a second receiving portion 123, the first receiving portion 122 and the second receiving portion 123 are both connected to the base plate 121, and the first receiving portion 122 and the second receiving portion 123 are symmetrically disposed on both sides of the base plate 121. The base plate portion 121 is provided with a central shaft portion 1211, a first convex pillar 1212, a second convex pillar 1213, a third convex pillar 1214 and a lifting block 1215, the central shaft portion 1211 is located at the center of the base plate portion 121, and the first convex pillar 1212, the second convex pillar 1213, the third convex pillar 1214 and the lifting block 1215 are all located at one side of the base plate portion 121; the first receiving portion 122 is provided with a first through groove 1221 and a first guide groove 1222, the first through groove 1221 is disposed on one side of the first receiving portion 122 facing the center of the base plate portion 121, and the first guide groove 1222 is disposed on one side of the first receiving portion 122 away from the base plate portion 121; the second receiving portion 123 is provided with a second through groove 1231 and a second guide groove 1232, the second through groove 1231 is disposed on a side of the second receiving portion 1231 facing the center of the base plate portion 121, and the second guide groove 1222 is disposed on a side of the second receiving portion 123 away from the base plate portion 121.

Specifically, in use, the mounting plate 120 is fixedly connected to the housing 110, the first receiving portion 122 is embedded in the first opening 1121, the second receiving portion 123 is embedded in the second opening 1122, and the housing cover 130 is detachably covered on the housing 110 to close the accommodating space, so as to protect the traction module 400 accommodated in the accommodating space and prevent the external environment from directly acting on the traction module 400.

Referring to fig. 4, the guide assembly 200 includes a first guide post 210, a second guide post 220 and two connecting pieces 230, two ends of one connecting piece 230 are respectively connected to one ends of the first guide post 210 and the second guide post 220, two ends of the other connecting piece 230 are respectively connected to the other ends of the first guide post 210 and the second guide post 220, wherein the main body 100 is fixedly mounted in the middle of the first guide post 210 and the second guide post 220, and the two jaw assemblies 100 are close to or far away from each other along the first guide post 210 and the second guide post 220. Specifically, when the mounting device is used, the first guide posts 210 are mounted between the first guide slots 1222 and the second guide slots 1232 and fixed to the mounting plate 120 by fixing pieces (not shown), similarly, the second guide posts 230 are mounted between the first guide slots 1222 and the first guide slots 1232 of another group, and the first guide posts 210 and the second guide posts 220 are symmetrically arranged. Preferably, the first guide post 210 and the second guide post 220 are saddle-shaped so that the fixing piece is fitted to the shape of the first guide post 210 and the second guide post 220, and the first guide post 210 and the second guide post 220 can be closely attached to the mounting plate 120.

In some embodiments, the guiding assembly 200 may be a combination of a guide rail and a sliding block, in addition to the combination of the first guiding column 210, the second guiding column 220 and the connecting piece 230, and specifically, the guiding assembly includes a guide rail (not shown) and at least two sliding blocks (not shown), the sliding blocks are mounted on the guide rail and slide along the guide rail, the main body 100 is mounted in the middle of the guide rail, and at least one sliding block is mounted on each of the two jaw assemblies 300. Therefore, under the action of the traction module, when one of the jaw assemblies 300 slides on the guide rail through one of the sliding blocks, the other jaw assembly 300 slides on the guide rail through the other sliding block by the same distance.

Referring to fig. 4, the jaw assembly 300 includes a base 310, at least one extension arm 320, and at least one jaw 330, the base 310 is connected to the extension arm 320, the jaw 330 is correspondingly mounted to the extension arm 320, the base 310 is connected to the guide assembly 200, and the base 310 moves along the guide assembly 200. Specifically, the base 310 is provided with two guiding holes 311, and the two guiding holes 311 are used for installing the first guiding column 210 and the second guiding column 220, that is, the first guiding column 210 sequentially passes through one guiding hole 311 of the two jaw assemblies 300, the second guiding column 220 sequentially passes through the other guiding hole 311 of the two jaw assemblies 300, and then the first guiding column 210 and the second guiding column 220 are connected through the two connecting pieces 230. Thereby, the coupling of the jaw assembly 300 to the guide assembly 200 is achieved, and the jaw 330 moves with the sliding of the base 310. In this embodiment, the number of the extension arms 320 of one of the jaw assemblies 300 is two, the number of the jaws 330 is also two, and the two jaws 330 are correspondingly mounted on the two extension arms 320 one by one and symmetrically arranged. Therefore, when the hub clamping device 900 is mounted on the hub, the hub is clamped together by the four jaws 330 of the four extension arms 320, so as to ensure that the centers of the two jaw assemblies 300 are aligned with the center of the hub.

Referring to fig. 5 and 6, the traction module 400 includes a rotation plate 410, a first link 420 and a second link 430, the rotation plate 410 is rotatably mounted on the main body 100, one end of each of the first link 420 and the second link 430 is connected to the rotation plate 410, the other end of the first link 420 is connected to one of the jaw assemblies 300, and the other end of the second link 420 is connected to the other jaw assembly 300. Specifically, a connection hole 411 is disposed at the center of the connection plate 410, and the connection plate 410 is sleeved on the central shaft 1211 through the connection hole 411 and connected through a bolt. One end of the first link 420 is connected to the rotating plate 410, the other end of the first link 420 is connected to the base 310 of one of the jaw assemblies 300, one end of the second link 430 is connected to the rotating plate 410, and the other end of the second link 430 is connected to the base 310 of the other jaw assembly 300.

It will be appreciated that the lengths of the first link 420 and the second link 430 may be the same length, but may also be different lengths, for example: when the length of the first link 420 is longer than that of the second link 430, the distance from one end of the first link 420 to the center of the rotating plate 410 is longer than that from one end of the second link 430 to the center of the rotating plate 410, so that when the rotating plate 410 rotates, the other end of the first link 420 pulls one of the jaw assemblies 300 to move by the same distance as the other end of the second link 430 pulls the other jaw assembly 300 to move, thereby ensuring that the centers of the two jaw assemblies 300 coincide with the center of the traction module 400.

Preferably, the first link 420 and the second link 430 have the same length, and the distance between one end of the first link 420 and the center of the rotating plate 410 and the distance between one end of the second link 430 and the center of the rotating plate 410 are the same, so that it is better to ensure that the two jaw assemblies 300 move the same distance by the traction module 400. It should be noted that, when two jaw assemblies 300 are installed on the guide assembly 200, the distance from the base 310 of the two jaw assemblies 300 to the center of the rotating plate 410 is ensured to be the same, so that after one jaw assembly 300 moves, the central axis of the rotating plate 410 is located at the center of the two jaw assemblies 300 after the other jaw assembly 300 moves under the action of the traction module 400.

Through the structure, when the hub clamping device 900 is installed on a hub, a user pulls one of the jaw assemblies 300 to move, the other jaw assembly 300 moves by the same distance under the action of the traction module 400, and when the opening range of the two jaw assemblies 300 is adjusted to be matched with the overall dimension of the hub, the two jaws 330 of the two jaw assemblies 300 are inserted into the installation gap between the hub and a tire, so that the hub clamping device 900 can be quickly installed on the hub, and the wheel is positioned and measured.

Referring to fig. 7-10, in some embodiments, the hub gripping device 900 further includes a locking module 500, the locking module 500 is mounted to the body 100, and the locking module 500 is used for locking the traction module 400 to enable the jaw assembly 300 to grip the hub. In this embodiment, the locking module 500 is mounted to the mounting plate 120.

The locking module 500 comprises a sawtooth rack 510, a pawl component 520, a limiting rod 530 and a handle 540, wherein the sawtooth rack 510 is installed on the rotating plate 410, one end of the limiting rod 530 is connected with the pawl component 520, the other end of the limiting rod 530 is rotatably connected with the main body 100, the pawl component 300 is connected with the handle 540, and one end of the handle 540 is rotatably installed on the main body 100. When the handle 540 is rotated, the pawl assembly 520 moves with the handle 540, and when the pawl assembly 520 engages the sawtooth rack 510, the rotating plate 410 is in a locked state, and when the pawl assembly 520 is separated from the sawtooth rack 510, the rotating plate 410 is in an unlocked state.

Specifically, the saw-toothed strip 510 is installed at a side portion of the rotating plate 410, and the saw teeth of the saw-toothed strip 510 are arranged in a direction away from the rotating plate 410. One end of the limiting rod 530 is hinged to the pawl assembly 520, the other end of the limiting rod 530 is sleeved on the central shaft 1211 of the mounting plate 120, and the overall length of the limiting rod 530 is greater than the rotation radius of the rotating plate 410. The handle 540 is rotatably hinged to the first protrusion 1212 of the rotating plate 410. Therefore, when the handle 540 rotates around the central axis of the first protruding pillar 1212 as the rotation center, the handle 540 drives the pawl assembly 520 to move, so as to indirectly drive the pawl assembly 520 to move, and the pawl assembly 520 engages or does not engage with the sawtooth rack 510.

In some embodiments, the sawtooth strip 510 and the rotating plate 410 are integrally formed, that is, a plurality of sawteeth are formed at the side end of the rotating plate 410 to form the sawtooth strip 510. Of course, the sawtooth rack 510 and the rotating plate 410 may also be independently disposed, and in this embodiment, the sawtooth rack 510 and the rotating plate 410 are integrally formed, so as to reduce the assembly difficulty of the clamping device 900 and ensure the accuracy of the assembly of the pawl assembly 520 and the sawtooth rack 510.

Referring to fig. 9, in some embodiments, the pawl assembly 520 includes a movable block 521, a pawl 522 and a connecting member 523, the movable block 521 is connected to the limiting rod 530, one end of the pawl 522 is rotatably mounted to the movable block 521, the other end of the pawl 522 is used for hooking and grabbing the sawtooth rack 510, one end of the connecting member 523 is connected to the movable block 521, and the other end of the connecting member 523 is connected to the handle 540. In this embodiment, the whole shape of movable block 521 is the U-shaped, and it includes first lug part 5211, second lug part 5212 and arc portion 5213, the one end of arc portion 5213 with first lug part 5211 is connected, the other end of arc portion 5213 with second lug part 5212 is connected, first lug part 5211 and second lug part 5212 interval sets up to form an accommodation space, wherein, be equipped with installation department 52111 on the first lug part 5211, arc portion 5213 is equipped with connecting hole 52131. The pawl 522 is rotatably installed between the first lug part 5211 and the second lug part 5212, and may be installed on the movable block 521 by sequentially passing through the first lug part 5211, the pawl 522 and the second lug part 5212 through an installation shaft, or the first lug part 5211 or the second lug part 5212 extends into the accommodation space to form a position for installing the pawl 522. One end of the connecting member 523 is connected to the movable block 521, and the other end of the connecting member 523 is connected to the handle 540.

It can be understood that the connecting member 523 may be a rod-shaped connecting rod, in which one end of the connecting rod is hinged to the movable block 521, and the other end of the connecting rod is hinged to the handle; of course, the connecting member 523 may also be a tension spring, one end of the tension spring is connected to the connecting hole 52131 of the movable block 521, and the other end of the tension spring is connected to the handle 540. In this embodiment, the connecting member 523 is a tension spring. Therefore, when the handle 540 rotates in a direction away from the pawl 522, that is, the handle 540 rotates in a preset direction, the handle 540 gradually stretches the tension spring, and when the handle 540 rotates until the pawl 522 engages with the sawtooth rack 510, the handle 540 still rotates in the preset direction and stretches the tension spring, so that the rotating plate 410 has a tendency to rotate in the preset direction, and therefore the rotating plate 410 drives the two jaw assemblies 300 to move closer to the center through the first connecting rod 420 and the second connecting rod 430, so that the jaws 330 on both sides of the traction module 400 clamp the hub together. In this embodiment, the preset direction is a counterclockwise direction.

In some embodiments, the locking module 500 further comprises a torsion spring 550, the torsion spring 550 is mounted on the movable block 521, one end of the torsion spring 550 abuts against the movable block 521, and the other end of the torsion spring 550 abuts against the pawl 522, and the torsion spring 550 is used for providing a pressure to the pawl 522 towards the sawtooth rack 510. Specifically, the torsion spring 550 is sleeved on the mounting portion 52111, one end of the torsion spring 550 abuts against the arc portion 5213, and the other end of the torsion spring 550 abuts against the pawl 522.

When the pawl 522 is moved in the direction of the lifting block 1215 to insert the lifting block 1215 between the pawl 522 and the toothed rack 510, and separate the pawl 522 and the toothed rack 510, the rotating plate 410 is in the unlocked state, and when the pawl 522 is moved in the direction away from the lifting block 1215 to release the pawl 522 and the toothed rack 510 from the lifting block 1215, the pawl 522 is moved toward the toothed rack 510 and engages the toothed rack 510 under the action of the torsion spring 550 to lock the rotating plate 410.

In some embodiments, the locking module 500 further includes a connecting shaft 560, the handle 540 is provided with a first sliding groove 541 and a second sliding groove 542, the first sliding groove 541 and the second sliding groove 542 are symmetrically disposed at two sides of the handle 540, the connecting shaft 560 is installed between the first sliding groove 541 and the second sliding groove 542, the connecting member 523 is connected to the connecting shaft 560, and the handle 540 is rotated to enable the connecting shaft 560 to slide in the first sliding groove 541 and the second sliding groove 542, so as to pull the movable block 521 to drive the pawl 522 to move. It can be understood that when the handle 540 is rotated in the predetermined direction, the connecting shaft 560 gradually moves to the ends of the first sliding groove 541 and the second sliding groove 542, the handle 540 continues to rotate in the predetermined direction, and the pawl 522 engages with the sawtooth rack 510, so as to drive the rotating plate 410 to rotate, so that the two jaw assemblies 300 clamp the hub together.

In some embodiments, the locking module 500 further comprises a stopper 570, one end of the stopper 570 is rotatably connected to the main body 100, and the other end of the stopper 570 is rotatably connected to the handle 540. Specifically, one end of the limiting block 570 is connected to the second protruding pillar 1213 of the mounting plate 120, and the other end of the limiting block 570 is hinged to the handle 540. Understandably, when the pawl 522 engages the sawtooth rack 510, the handle 540 is continuously rotated, when the center of the second protruding column 1213, the connecting point of the movable block 521 and the limiting rod 530, and the center of the connecting shaft 560 are in the same straight line, the movable block 521, the limiting rod 530, the limiting block 570, and the handle 540 are in a locked state, the handle 440 continuously rotates along the preset direction, the tension spring is straightened and bounced, at this time, the two jaw assemblies 300 are tightly clamped with the hub, and when the tension spring rotates along the direction opposite to the preset direction, the tension spring gradually recovers and deforms, so that the locking module is gradually unlocked.

In some embodiments, the locking module 500 further comprises a return member 580, one end of the return member 580 is fixed to the body 100, and the other end of the return member 580 is connected to the pawl 522. In this embodiment, a rotating shaft (not shown) is connected to the pawl 522, one end of the restoring member 580 is connected to the third protrusion 1214, and the other end of the restoring member 580 is connected to the rotating shaft of the pawl 522.

It will be appreciated that when the handle 540 is rotated in the predetermined direction, the return member 580 is gradually stretched, and when the handle 540 is rotated in a direction opposite to the predetermined direction, the return member 580 is gradually deformed to pull the pawl 522 toward the lifting block 1215, thereby accelerating the unlocking of the traction module 400 by the locking module 500. When the pulling force provided by the restoring member 580 is removed, the restoring member 580 is restored to its original shape, and the lifting block 1215 is inserted between the pawl 522 and the sawtooth rack 510.

Referring again to fig. 1, in some embodiments, the hub clamping device 900 further includes a handle 600, the handle 600 is mounted to the jaw assembly 300, and the handle 600 is pulled externally to provide an external force for moving the jaw assembly 300. In this embodiment, the handle 600 is mounted on the base 310 of the jaw assembly 300, and when in use, a user only needs to hold the handle and pull the handle toward or away from the main body 100 to drive the jaw assembly 300 to approach or move away from the main body 100.

When the device is installed and used, a user only needs to move one of the jaw assemblies 300, and under the action of the traction module 400, the rotating plate 410 rotates around the central axis of the main body 100 by a certain angle, so as to drive the other jaw assembly 300 to move by the same distance. Treat two claw assembly 300 the open range adaptation of jack catch 330 behind the overall dimension of wheel hub, only need with two claw assembly 300 the jack catch 330 joint in the installation gap in the middle of wheel hub and the tire, can with wheel hub clamping device 900 depends on the wheel. Further, in order to improve the stability between the clamping device 900 and the wheel, the hub clamping device 900 is further provided with a locking module 500, specifically, a user only needs to break the handle 540, so that the movable block 521, the limiting rod 530, the limiting block 570 and the handle 540 are in a locked state, so that the locking module 500 is in a fully locked state, during the movement of the handle 540, the pawl 522 is disengaged from the lifting block 1215, and engages with the sawtooth rack 510, then the tension spring is stretched, after the tension spring is straightened, the handle 540 continues to rotate, the pawl 522 drives the rotating plate 410 to rotate, the two pawl assemblies 300 slightly move towards the central axis of the main body, so that the hub clamping device 900 better clamps the hub, and when the handle 540 is in a locked state, when the handle 540 is released, the locking module 500 will remain locked without any external force. Wherein, two jaw assemblies 300 are symmetrically disposed at both sides of the body 100 and are symmetrical about a central axis of the body 100. In addition, the two clamping jaw assemblies 200 are indirectly connected with the rotating plate 410 through two symmetrically arranged connecting rods, so that the two clamping jaw assemblies 300 can be ensured to move for the same distance at any time, and the central axis of the main body 100 is ensured to be coincident with the central axis of the hub when the clamping device 900 is installed on the wheel. It can be understood that when the hub clamping device 900 needs to be detached from the wheel, the hub clamping device 900 can be detached from the wheel only by rotating the handle in the direction opposite to the preset direction to unlock the locking module 500, and then releasing the claws 330 of the two claw assemblies 300 to be taken out from the mounting gap, so that the hub clamping device 900 can be conveniently mounted and dismounted.

An embodiment of the utility model provides a pair of hub clamping device 900, include: a main body 100; a guide assembly 200 coupled to the body 100; two jaw assemblies 300 installed on the guide assembly 200, wherein the two jaw assemblies 300 are respectively located at two opposite sides of the main body 100, the two jaw assemblies 300 can move along the guide assembly 200, and the jaw assemblies 300 are used for being clamped to a hub, so that the hub clamping device 900 is attached to the hub; a traction module 400 installed on the body 100, the traction module 100 being connected with two jaw assemblies 300, the two jaw assemblies 300 being located at both sides of the traction module 400, and the two jaw assemblies 300 being symmetrical about a central axis of the traction module 400; wherein, when one of the jaw assemblies 300 is forced and moves towards the direction approaching the traction module 400, the traction module 400 drives the other jaw assembly 300 to move synchronously towards the direction approaching the traction module 400 by the same distance, so that the traction module 400 is always at the center of the two jaw assemblies 300, and the central axis of the traction module 400 is always coincident with the central axis of the hub. Therefore, a user only needs to pull two claw assemblies 300 to be matched with the hub in size, so that the two claw assemblies 300 can be quickly installed on the hub, installation time is saved, and meanwhile, the central axis of the traction module 400 is overlapped with the central axis of the hub, and accurate positioning of wheels is facilitated.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (15)

1. A hub clamping device, comprising:

a main body;

a guide assembly connected to the main body;

the two jaw assemblies are arranged on the guide assembly, are respectively positioned on two opposite sides of the main body, can move along the guide assembly, and are used for being clamped on a hub so that the hub clamping device is attached to the hub; the traction module is arranged on the main body and is connected with two jaw assemblies, the two jaw assemblies are positioned on two sides of the traction module, and the two jaw assemblies are symmetrical about the central axis of the traction module;

when one jaw assembly is acted by external force and moves towards the direction close to the traction module, the traction module drives the other jaw assembly to synchronously move for the same distance towards the direction close to the traction module, so that the traction module is always positioned at the centers of the two jaw assemblies, and the central axis of the traction module is always coincided with the central axis of the hub.

2. The hub clamping device of claim 1, wherein the guiding assembly comprises a first guiding post, a second guiding post and two connecting pieces, two ends of one connecting piece are respectively connected with one end of the first guiding post and one end of the second guiding post, two ends of the other connecting piece are respectively connected with the other end of the first guiding post and the other end of the second guiding post, wherein the main body is fixedly arranged in the middle of the first guiding post and the second guiding post, and the two clamping jaw assemblies are close to or far away from each other along the first guiding post and the second guiding post.

3. The hub clamping device of claim 1 wherein said guide assembly includes a guide rail and at least two blocks, said blocks being mounted to said guide rail and being slidable along said guide rail, said body being mounted to a central portion of said guide rail, and at least one of said blocks being mounted to each of said jaw assemblies.

4. The hub clamping device of claim 1 wherein said jaw assembly includes a base, at least one extension arm and at least one jaw, said base being connected to said extension arm, one said jaw being correspondingly mounted to one said extension arm, said base being connected to said guide assembly and said base moving along said guide assembly.

5. The hub clamping device of claim 1 wherein the traction module includes a rotation plate rotatably mounted to the body, a first link and a second link, each of the first link and the second link having one end connected to the rotation plate, the first link having another end connected to one of the jaw assemblies, the second link having another end connected to the other jaw assembly.

6. The hub clamping device of claim 1 further comprising a handle mounted to said jaw assembly, said handle being externally pulled to provide an external force for movement of said jaw assembly.

7. The hub clamping device of claim 5 further comprising a locking module mounted to the body, the locking module for locking the traction module to secure the jaw assembly to the hub.

8. The hub clamping device of claim 7, wherein the locking module comprises a sawtooth rack, a pawl assembly, a limit rod and a handle, the sawtooth rack is mounted on the rotating plate, one end of the limit rod is connected with the pawl assembly, the other end of the limit rod is rotatably connected with the main body, the pawl assembly is connected with the handle, and one end of the handle is rotatably mounted on the main body;

when the handle rotates, the pawl assembly moves along with the handle, when the pawl assembly is meshed with the sawtooth rack, the rotating plate is in a locking state, and when the pawl assembly is separated from the sawtooth rack, the rotating plate is in an unlocking state.

9. The hub clamping device of claim 8 wherein said serrated bar is integrally formed with said rotor plate.

10. The hub clamping device of claim 8 wherein the pawl assembly comprises a movable block, a pawl and a connecting member, the movable block is connected to the limiting rod, one end of the pawl is rotatably mounted to the movable block, the other end of the pawl is used for hooking and grabbing the sawtooth rack, one end of the connecting member is connected to the movable block, and the other end of the connecting member is connected to the handle.

11. The hub clamping device of claim 10 wherein the connecting member is a tension spring, one end of the tension spring is connected to the movable block, and the other end of the tension spring is connected to the handle.

12. The hub clamping device of claim 10 wherein the body is provided with a lifting block;

the locking module further comprises a torsion spring, the torsion spring is mounted on the movable block, one end of the torsion spring is abutted against the movable block, the other end of the torsion spring is abutted against the pawl, and the torsion spring is used for providing pressure towards the sawtooth strip for the pawl;

when the pawl moves towards the direction of the lifting block, so that the lifting block is inserted between the pawl and the sawtooth strip, and the pawl and the sawtooth strip are separated, the rotating plate is in an unlocking state, and when the pawl moves towards the direction far away from the lifting block, so that the pawl and the sawtooth strip are not separated by the lifting block any more, the pawl moves towards the sawtooth strip and is meshed with the sawtooth strip under the action of the torsion spring, so that the rotating plate is in a locking state.

13. The hub clamping device of claim 10, wherein the locking module further comprises a connecting shaft, the handle is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are symmetrically arranged on two sides of the handle, the connecting shaft is installed between the first sliding groove and the second sliding groove, the connecting member is connected with the connecting shaft, and the handle is rotated to enable the connecting shaft to slide in the first sliding groove and the second sliding groove, so that the movable block is pulled to drive the pawl to move.

14. The hub clamping device of claim 8, wherein the locking module further comprises a limiting block, one end of the limiting block is rotatably connected with the main body, and the other end of the limiting block is rotatably connected with the handle.

15. The hub clamping device of claim 8 wherein the locking module further comprises a return member, one end of the return member being secured to the body and the other end of the return member being connected to the pawl.

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