A wheel hub clamp mechanism for a tire changer that facilitates positioning

Abstract

This utility model discloses a wheel hub clamping mechanism for a tire changer that facilitates positioning in the field of automotive repair equipment. It includes a tire changer workbench connecting seat, a support housing, a first positioning sleeve, and a second positioning sleeve. The support housing is fixedly connected to the top of the tire changer workbench connecting seat. The first positioning sleeve is fixedly connected to the middle of the top of the support housing. The second positioning sleeve is slidably connected to the outer wall of the first positioning sleeve. A fixing plate is fixedly connected between the right sides of the inner sidewall of the support housing. This wheel hub clamping mechanism facilitates wheel hub positioning, reduces the inner wall forces between the wheel hub clamps and the wheel hub in different directions during the inner support fixing process, thus making the wheel hub less susceptible to damage. It improves the efficiency of the wheel hub clamping mechanism and makes it easy to remove the wheel hub and tire from the wheel hub clamping mechanism after tire replacement, facilitating use.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair equipment technology, specifically to a wheel hub clamping mechanism for a tire changer that is easy to position. Background Technology

[0002] With the continuous development of my country's economy and the increasing improvement of people's living standards, automobiles have become an indispensable means of transportation. Car tires and rims are important components of automobiles. When car tires are old or damaged, they need to be repaired or replaced. This requires the use of a tire changer, also known as a tire changer or tire remover, which is used to install and remove car tires. It can change tires for different vehicles such as cars, motorcycles, and heavy trucks. The tire changer requires a rim clamping mechanism to clamp and fix the rim.

[0003] Currently, in the use of wheel hub clamping mechanisms, due to their simple structure, most of them simply place the tire and wheel hub directly on the platform and fix them by moving the clamping tool outward to support the inner wall of the wheel hub. Because it is not convenient to position the wheel hub, the wheel hub will suffer significant frictional damage during the inner support fixing process due to the different forces exerted on the inner wall of the wheel hub clamp in different directions. This makes the wheel hub easily damaged and reduces the efficiency of the wheel hub clamping mechanism. At the same time, it is inconvenient to remove the wheel hub and tire after changing the tire, which makes it inconvenient to use. Therefore, we propose a wheel hub clamping mechanism for a tire changer that is easy to position. Utility Model Content

[0004] The purpose of this invention is to provide a wheel hub clamping mechanism for a tire changer that is easy to position, in order to solve the problems mentioned in the background art. The existing wheel hub clamping mechanisms are simple in structure, and most of them place the tire and wheel hub directly on the platform and fix it by moving the clamping tool outward to support the inner wall of the wheel hub. Because it is not convenient to position the wheel hub, the wheel hub will be subject to greater friction damage during the inner support fixing process due to the different forces between the wheel hub clamp and the inner wall of the wheel hub in different directions. This makes the wheel hub easily damaged, reduces the efficiency of the wheel hub clamping mechanism, and makes it inconvenient to remove the wheel hub and tire after the tire is changed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheel hub clamping mechanism for a tire changer that facilitates positioning, comprising a tire changer workbench connecting seat, a support housing, a first positioning sleeve, and a second positioning sleeve. The support housing is fixedly connected to the top of the tire changer workbench connecting seat. The first positioning sleeve is fixedly connected to the middle of the top of the support housing. The second positioning sleeve is slidably connected to the outer side wall of the first positioning sleeve. A fixing plate is fixedly connected between the right sides of the inner side wall of the support housing. A motor is fixedly connected to the middle of the right side wall of the fixing plate, and the output end of the motor passes through the middle of the right side wall of the fixing plate and extends to the left side of the fixing plate. A bidirectional lead screw is fixedly connected to the output end of the motor, and the bidirectional lead screw is rotatably connected to the middle of the left side wall of the inner cavity of the support housing. An electric telescopic rod is fixedly connected to the middle of the bottom of the inner cavity of the first positioning sleeve. Sliding grooves are opened in the middle of the left and right sides of the inner side wall of the second positioning sleeve. A limit ring is sleeved on the lower side of the outer side wall of the second positioning sleeve.

[0006] As a further description of the above technical solution:

[0007] The top of the support housing has a limiting hole in the middle of the left and right sides, and the limiting hole is rectangular in shape.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the bidirectional lead screw is connected to two first sliders, and the first sliders pass through the inner cavity of the limiting hole and extend to the top of the support housing. A support plate is fixedly connected to the top of the first sliders, and a clamping block is fixedly connected to the middle of the top of the support plate.

[0010] As a further description of the above technical solution:

[0011] A buffer pad is fixedly connected to the right side wall of the inner cavity of the left clamping block and the left side wall of the inner cavity of the right clamping block. The buffer pad is made of rubber.

[0012] As a further description of the above technical solution:

[0013] A second slider is fixedly connected to the lower middle of the left and right side walls of the outer side wall of the first positioning sleeve, and the second slider is slidably connected to the inner cavity of the groove.

[0014] As a further description of the above technical solution:

[0015] A guide block is fixedly connected to the top of the second positioning sleeve, and the guide block is made of aluminum alloy.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The wheel hub clamping mechanism of this easy-to-position tire changer extends by means of an electric telescopic rod, which drives the second positioning sleeve to move upward, thereby extending the overall length of the first and second positioning sleeves. Then, the second positioning sleeve, with the help of a guide block, passes through the center hole of the wheel hub to position the wheel. This makes the wheel hub clamping mechanism easy to position the wheel hub, reduces the inner wall force between the wheel hub clamp and the wheel hub in different directions during the inner support fixing process, thus making the wheel hub less prone to damage and improving the efficiency of the wheel hub clamping mechanism.

[0018] 2. The wheel hub clamping mechanism of this easy-to-position tire changer, through the first positioning sleeve and the second positioning sleeve, passes through the center hole of the wheel hub with the help of the guide block, and then extends through the electric telescopic rod. The electric telescopic rod drives the second positioning sleeve to move upward, causing the limiting ring to contact the wheel spoke in the wheel hub. Then, through the wheel spoke and the extension of the electric telescopic rod, the wheel hub moves upward away from the support housing. This makes it easy to remove the wheel hub and tire from the wheel hub clamping mechanism after the tire is changed, making it convenient for use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a wheel hub clamping mechanism for a tire changer that is easy to position, as proposed in this utility model.

[0020] Figure 2 This is a partial three-dimensional structural diagram of a wheel hub clamping mechanism for a tire changer that is easy to position, as proposed in this utility model.

[0021] Figure 3 This is a front view schematic diagram of a wheel hub clamp mechanism for a tire changer that is easy to position, as proposed in this utility model.

[0022] Figure 4 This is a front sectional view of the hub clamp mechanism of a tire changer that is easy to position, as proposed in this utility model.

[0023] Figure 5 This utility model proposes a wheel hub clamping mechanism for a tire changer that facilitates positioning. Figure 4 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 100, tire changer workbench connecting seat; 200, support housing; 210, limiting hole; 220, fixing plate; 230, motor; 240, double-acting lead screw; 250, slider; 260, support plate; 270, clamping block; 280, buffer pad; 300, first positioning sleeve; 310, electric telescopic rod; 320, slider; 400, second positioning sleeve; 410, slide groove; 420, limiting ring; 430, guide block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] This utility model provides a wheel hub clamping mechanism for a tire changer that facilitates positioning of the wheel hub and removal of the wheel and tire from the clamping mechanism. Please refer to [link to relevant documentation]. Figure 1-5 It includes a tire changer workbench connecting seat 100, a support housing 200, a first positioning sleeve 300, and a second positioning sleeve 400;

[0029] Please refer to it again. Figure 1-5 The tire changer workbench connecting seat 100 is used to support the support housing 200, the first positioning sleeve 300, and the second positioning sleeve 400.

[0030] Please refer to it again. Figure 1-5A fixing plate 220 is fixedly connected between the right sides of the inner sidewall of the support housing 200. The fixing plate 220 is used to support the motor 230. The motor 230 is fixedly connected to the middle of the right sidewall of the fixing plate 220, and the output end of the motor 230 passes through the middle of the right sidewall of the fixing plate 220 and extends to the left side of the fixing plate 220. The output end of the motor 230 is fixedly connected to a bidirectional lead screw 240, and the bidirectional lead screw 240 is rotatably connected to the middle of the left sidewall of the inner cavity of the support housing 200. The motor 230 is used to drive the bidirectional lead screw 240 to rotate and drive the first slider 250 to drive the support plate 260 to move relatively left and right. The support housing 200 is fixedly connected to the top of the tire changer workbench connecting seat 100. The support housing 200 is used to support the first positioning sleeve 300 and the second positioning sleeve 400.

[0031] Please refer to it again. Figure 1-5 An electric telescopic rod 310 is fixedly connected to the bottom center of the inner cavity of the first positioning sleeve 300. The electric telescopic rod 310 is used to drive the second positioning sleeve 400 to move up and down. The first positioning sleeve 300 is fixedly connected to the top center of the support housing 200. The first positioning sleeve 300 is used to support the second positioning sleeve 400.

[0032] Please refer to it again. Figure 1-5 The inner sidewall of the second positioning sleeve 400 has a groove 410 in the middle of the left and right sides. The groove 410 is used to limit the second slider 320. A limiting ring 420 is sleeved on the lower side of the outer sidewall of the second positioning sleeve 400. The limiting ring 420 is used to support the spokes after the second positioning sleeve 400 passes through the center hole of the hub. The second positioning sleeve 400 is slidably connected to the outer sidewall of the first positioning sleeve 300. The second positioning sleeve 400 is used to position the hub by passing through the center hole of the hub.

[0033] Please refer to it again. Figure 1-5 The top of the support housing 200 has a limiting hole 210 in the middle of the left and right sides. The limiting hole 210 is rectangular in shape and can limit the first slider 250 through the rectangular limiting hole 210.

[0034] Please refer to it again. Figure 1-5 Two first sliders 250 are connected to the outer wall of the bidirectional lead screw 240. The first sliders 250 pass through the inner cavity of the limiting hole 210 and extend to the top of the support housing 200. A support plate 260 is fixedly connected to the top of the first sliders 250. A clamping block 270 is fixedly connected to the middle of the top of the support plate 260. The first sliders 250 are subjected to force and cooperate with the support plate 260 to drive the clamping block 270 to internally support and fix the wheel hub.

[0035] Please refer to it again. Figure 1-5A buffer pad 280 is fixedly connected to the right side wall of the inner cavity of the left clamping block 270 and the left side wall of the inner cavity of the right clamping block 270. The buffer pad 280 is made of rubber material. The buffer pad 280 made of rubber material has high cushioning and anti-slip properties, and can protect the contact surface between the clamping block 270 and the wheel hub.

[0036] Please refer to it again. Figure 1-5 The second slider 320 is fixedly connected to the middle of the lower side of the left and right side walls of the outer side wall of the first positioning sleeve 300, and the second slider 320 is slidably connected to the inner cavity of the slide groove 410. The second slider 320 can cooperate with the slide groove 410 to restrict the linear up and down movement of the second positioning sleeve 400.

[0037] Please refer to it again. Figure 1-5 The top of the second positioning sleeve 400 is fixedly connected to a guide block 430, which is made of aluminum alloy. The guide block 430 made of aluminum alloy has high corrosion resistance and strength.

[0038] In summary, by extending the electric telescopic rod 310, the second positioning sleeve 400 is driven to move upward, thereby extending the overall length of the first positioning sleeve 300 and the second positioning sleeve 400. Then, the second positioning sleeve 400, with the help of the guide block 430, passes through the center hole of the wheel hub to position the wheel roller. This makes it easier for the wheel hub clamping mechanism to position the wheel hub, reduces the inner wall force between the wheel hub clamp and the wheel hub in different directions during the inner support fixing process, thus making the wheel hub less prone to damage and improving the efficiency of the wheel hub clamping mechanism.

[0039] In summary, by having the first positioning sleeve 300 and the second positioning sleeve 400 pass through the center hole of the wheel hub with the help of the guide block 430, and then the electric telescopic rod 310 extends, driving the electric telescopic rod 310 to drive the second positioning sleeve 400 to move upward, driving the limiting ring 420 to contact the spokes in the wheel hub. Then, by the spokes and the extension of the electric telescopic rod 310, the wheel hub moves upward away from the support housing 200, thus making it easy to remove the wheel hub and tire from the wheel hub clamping mechanism after the tire is changed, which is convenient for use.

[0040] In practical use, those skilled in the art first install the tire changer workbench connecting seat 100 on the tire changer main workbench, and electrically connect the motor 230 and the electric telescopic rod 310 to the control terminal of the tire changer. Then, operate the control terminal of the tire changer to start the extension of the electric telescopic rod 310. The electric telescopic rod 310 then drives the second positioning sleeve 400 to move upward, extending the overall length of the first positioning sleeve 300 and the second positioning sleeve 400. Then, align the center hole of the wheel hub with the guide block 430 and insert it until the limiting ring 420 contacts the spokes of the wheel hub. Then, start the electric telescopic rod 310 to retract until the bottom of the wheel hub contacts the top of the support housing 200. Then, start the motor 230. The double-acting screw 240 is rotated, causing the first slider 250 to move the support plate 260 to the left and right respectively, until the clamping block 270 contacts the inner wall of the wheel hub to support and fix the wheel hub. Then, the tire is removed and replaced. After the tire replacement is completed, the motor 230 is started first. The motor 230 drives the double-acting screw 240 to rotate, causing the first slider 250 to move the support plate 260 inward. Then, the electric telescopic rod 310 is activated to extend. The electric telescopic rod 310 drives the second positioning sleeve 400 to move upward, causing the limiting ring 420 to contact the spokes of the wheel hub. During this process, the electric telescopic rod 310 continues to extend until the wheel hub is away from the support housing 200. Finally, the wheel hub can be removed.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wheel hub clamp mechanism of a tire changing machine for facilitating positioning, characterized by: The device includes a tire changer workbench connecting seat (100), a support housing (200), a first positioning sleeve (300), and a second positioning sleeve (400). The support housing (200) is fixedly connected to the top of the tire changer workbench connecting seat (100). The first positioning sleeve (300) is fixedly connected to the middle of the top of the support housing (200). The second positioning sleeve (400) is slidably connected to the outer wall of the first positioning sleeve (300). A fixing plate (220) is fixedly connected between the right sides of the inner sidewall of the support housing (200). A motor (230) is fixedly connected to the middle of the right sidewall of the fixing plate (220). The output end of the motor (230) passes through the middle of the right side wall of the fixed plate (220) and extends to the left side of the fixed plate (220). The output end of the motor (230) is fixedly connected to a bidirectional lead screw (240), and the bidirectional lead screw (240) is rotatably connected to the middle of the left side wall of the inner cavity of the support housing (200). An electric telescopic rod (310) is fixedly connected to the middle of the bottom of the inner cavity of the first positioning sleeve (300). A sliding groove (410) is opened in the middle of the left and right sides of the inner side wall of the second positioning sleeve (400). A limit ring (420) is sleeved on the lower side of the outer side wall of the second positioning sleeve (400).

2. A hub clamp mechanism for a tire changing machine that facilitates positioning according to claim 1, wherein: The top of the support housing (200) has a limiting hole (210) in the middle of the left and right sides, and the limiting hole (210) is rectangular in shape.

3. A hub clamp mechanism for a tire changing machine that facilitates positioning according to claim 2, wherein: The outer wall of the bidirectional lead screw (240) is connected to two first sliders (250), and the first sliders (250) penetrate the inner cavity of the limiting hole (210) and extend to the top of the support housing (200). The top of the first sliders (250) is fixedly connected to a support plate (260), and the top middle of the support plate (260) is fixedly connected to a clamping block (270).

4. A hub clamp mechanism for a tire changing machine that facilitates positioning according to claim 3, wherein: A buffer pad (280) is fixedly connected to the right side wall of the inner cavity of the left clamping block (270) and the left side wall of the inner cavity of the right clamping block (270). The buffer pad (280) is made of rubber.

5. A hub clamp mechanism for a tire changing machine that facilitates positioning according to claim 1, wherein: The second slider (320) is fixedly connected to the middle of the lower side of the left and right side walls of the outer side wall of the first positioning sleeve (300), and the second slider (320) is slidably connected to the inner cavity of the slide groove (410).

6. A wheel clamp mechanism for a tire changing machine that facilitates positioning according to claim 1, wherein: The top of the second positioning sleeve (400) is fixedly connected to a guide block (430), which is made of aluminum alloy.

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