Pulling device for automobile maintenance

Abstract

The utility model belongs to the field of automobile maintenance, discloses an automobile maintenance pulling device, and aims to solve the problems that an existing pulling device fixes parts in a clamping mode, the fixing mode is not suitable for different types of parts, and the applicability is poor. A first screw rod and two second screw rods are arranged on the mounting plate, the two second screw rods penetrate through the two sides of the mounting plate respectively and are in threaded fit, the first screw rod penetrates through the middle of the mounting plate and is provided with a first limiting structure, a first nut is rotationally mounted on the top surface of the mounting plate, and the first screw rod penetrates through the nut and is in threaded fit with the nut; the first screw rod penetrates through a movable plate and is in clearance fit with the movable plate, a second nut is rotationally installed on the top face of the movable plate, and the first screw rod penetrates through the second nut and is in threaded fit with the second nut. The clamping jaw is arranged and can be suitable for parts of different shapes, adjustment and lifting of the clamping jaw are completed through the first screw rod, the structure is simpler, and production and manufacturing are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of automobile repair, and specifically relates to an automobile repair lifting device. Background Technology

[0002] With the development of technology and the improvement of people's living standards, automobiles have become widely used. Since the parts in the engine compartment of a car are prone to failure, they need to be repaired or maintained. However, since many parts such as pins and clips are installed tightly, it is difficult to remove them using pliers, tweezers or other tools alone. Therefore, a puller is needed to complete the task.

[0003] In the prior art, Chinese patent with publication number CN222308728U discloses a lifting device for automobile repair. This prior art fixes parts by clamping, but this fixing method is not applicable to different types of parts and has poor applicability. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an automotive repair lifting device. This automotive repair lifting device is equipped with grippers that can be used for parts of different shapes. The adjustment and lifting of the grippers are accomplished by the first screw, which makes the structure simpler and easier to manufacture.

[0005] The technical solution adopted by this automotive repair lifting device to solve its technical problems is as follows:

[0006] A car repair lifting device is provided, including a mounting plate. The mounting plate has a first screw and two second screws. The two second screws pass through both sides of the mounting plate and are threaded together. The first screw passes through the middle of the mounting plate and has a first limiting structure. A first nut is rotatably mounted on the top surface of the mounting plate, and the first screw passes through the first nut and is threaded together. The first screw passes through a movable plate and is clearance-fitted. A second nut is rotatably mounted on the top surface of the movable plate, and the first screw passes through the second nut and is threaded together. A mounting block is fixedly mounted on the lower end of the first screw. One end of a connecting rod is hinged to each side of the movable plate, and the other end of the connecting rod is hinged to one end of a gripper. The middle of the gripper is hinged to the mounting block.

[0007] Furthermore, a base plate is rotatably mounted on the lower end of the second screw.

[0008] Furthermore, the first limiting structure includes a first limiting groove and a first limiting block. The first limiting groove is formed on the outer periphery of the first screw, and the first limiting block is fixedly installed in the through hole of the first screw through the mounting plate. The first limiting block is located in the first limiting groove and slides in fit.

[0009] Furthermore, a transmission structure is provided between the first nut and the second screw, which causes the first screw and the second screw to rotate in opposite directions.

[0010] Furthermore, the transmission structure includes three gears, one of which is fixedly installed on the outer periphery of the first nut, the second screw passes through the other two gears respectively, the other two gears are rotatably installed on the top surface of the mounting plate, and a second limiting structure is provided between the second screw and the corresponding gear, and the three gears mesh in sequence.

[0011] Furthermore, the second limiting structure includes a second limiting groove and a second limiting block. The second limiting groove is opened on the outer periphery of the second screw, and the second limiting block is fixedly installed in the mounting hole of the gear. The second limiting block is located in the second limiting groove and is slidably engaged.

[0012] Furthermore, a handle is fixedly installed at the upper end of the second screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model exemplifies an automotive repair lifting device. The user aligns the gripper with the component to be pulled out. By rotating the second screw, the second nut moves downwards, causing the movable plate to move downwards. This downward movement of the movable plate, via a connecting rod, causes one end of the gripper to flip, thus moving the lower end of the gripper inwards. This clamps the component securely. Rotating the two second screws downwards allows the lower ends of the second screws to contact the corresponding contact surfaces. Rotating the first nut causes the first screw to move upwards, enabling the gripper to pull out the component. Compared to existing technologies, this utility model features grippers, making it suitable for components of different shapes. The adjustment and lifting of the grippers are both accomplished via the first screw, resulting in a simpler structure and easier manufacturing.

[0015] 2. In an example of this utility model, a car repair lifting device has a base plate that can contact the contact surface, thereby providing a moving support function.

[0016] 3. In an example of this utility model, an automotive repair lifting device is provided, wherein the first limiting block and the first limiting groove can limit the first screw, thereby preventing the first screw from rotating relative to the mounting plate, and without affecting the up-and-down movement of the first screw.

[0017] 4. The automobile repair lifting device of this utility model can make the first nut and the second screw rotate synchronously through the transmission structure. When the first screw moves upward, the second screw can drive the mounting plate to move upward, making it more convenient to use.

[0018] 5. An example of this utility model is a car repair lifting device. Rotating one of the second screws can drive the first nut and the other second screw to rotate through the second limiting structure. The transmission device has a simple structure and is easy to use.

[0019] 6. An example of this utility model is a car repair lifting device, which enables the second screw to rotate synchronously with the gear through the second limiting groove and the second limiting block, without affecting the up and down movement of the second screw.

[0020] 7. In an example of this utility model, a car repair lifting device has a handle that provides a point of leverage for the user, making it easy for the user to rotate the second screw. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Mounting plate; 2. First screw; 3. Second screw; 4. First nut; 5. Movable plate; 6. Second nut; 7. Mounting plate; 8. Connecting rod; 9. Clamp; 10. Base plate; 11. Gear; 12. Rotary handle. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figure 1As shown, an automotive repair lifting device includes a mounting plate 1, on which a first screw 2 and two second screws 3 are provided. The two second screws 3 respectively penetrate both sides of the mounting plate 1 and are threaded together. The first screw 2 penetrates the middle of the mounting plate 1 and is provided with a first limiting structure. A first nut 4 is rotatably mounted on the top surface of the mounting plate 1, through which the first screw 2 passes and is threaded together. The first screw 2 also penetrates a movable plate 5 with a clearance fit. A second nut 6 is rotatably mounted on the top surface of the movable plate 5, through which the first screw 2 passes and is threaded together. A mounting block 7 is fixedly mounted on the lower end of the first screw 2. One end of a connecting rod 8 is hinged to each of the four sides of the movable plate 5, and the other end of the connecting rod 8 is hinged to one end of a gripper 9. The gripper has a Z-shaped structure, and the middle of the gripper 9 is hinged to the mounting block 7. The user aligns the gripper 9 with the part to be pulled out, and rotates the second screw 6 to move the second nut 6 downward. The downward movement of the second nut 6 moves the movable plate 5 downward, which in turn causes one end of the gripper 9 to flip via the connecting rod 8, thereby moving the lower end of the gripper 9 inward and clamping the part in place. Rotating the two second screws 3 downward allows the lower end of the second screws 3 to contact the corresponding contact surface. Rotating the first nut 4 moves the first screw 2 upward, allowing the part to be pulled out by the gripper 9. Compared with the prior art, this utility model is equipped with grippers 9, which can be used for parts of different shapes. The adjustment and lifting of the grippers 9 are all completed by the first screw 2, making the structure simpler and easier to manufacture.

[0027] like Figure 1 As shown, in a further preferred embodiment, a base plate 10 is rotatably mounted on the lower end of the second screw 3. The base plate 10 can contact the contact surface, thereby providing a moving support function.

[0028] like Figure 1 As shown, in a further preferred embodiment, the first limiting structure includes a first limiting groove and a first limiting block. The first limiting groove is formed on the outer periphery of the first screw 2, and the first limiting block is fixedly installed in the through hole of the first screw 2 through the mounting plate 1. The first limiting block is located in the first limiting groove and is slidably engaged. The first limiting block and the first limiting groove can limit the movement of the first screw 2, preventing the first screw 2 from rotating relative to the mounting plate 1, while not affecting the up-and-down movement of the first screw 2.

[0029] like Figure 1 As shown, in a further preferred embodiment, a transmission structure is provided between the first nut 4 and the second screw 3, which causes the first screw 2 and the second screw 3 to rotate in opposite directions. This transmission structure allows the first nut 4 and the second screw 3 to rotate synchronously, enabling the second screw 3 to move the mounting plate 1 upwards when the first screw 2 moves upwards, making it more convenient to use.

[0030] like Figure 1 As shown, in a further preferred embodiment, the transmission structure includes three gears 11. One gear 11 is fixedly mounted on the outer periphery of the first nut 4, and the second screw 3 passes through the other two gears 11 respectively. The other two gears 11 are rotatably mounted on the top surface of the mounting plate 1. A second limiting structure is provided between the second screw 3 and the corresponding gear 11, and the three gears 11 mesh sequentially. Rotating one of the second screws 3 causes the first nut 4 and the other second screw 3 to rotate through the second limiting structure. This transmission device has a simple structure and is easy to use.

[0031] like Figure 1 As shown, in a further preferred embodiment, the second limiting structure includes a second limiting groove and a second limiting block. The second limiting groove is formed on the outer periphery of the second screw 3, and the second limiting block is fixedly installed in the mounting hole of the gear 11. The second limiting block is located in the second limiting groove and slides within it. The second limiting groove and the second limiting block enable the second screw 3 to rotate synchronously with the gear 11 without affecting the up-and-down movement of the second screw 3.

[0032] like Figure 1 As shown, in a further preferred embodiment, a handle 12 is fixedly mounted on the upper end of the second screw 3. The handle 12 provides a point of leverage for the user, making it easy for the user to rotate the second screw 3.

[0033] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0034] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A vehicle maintenance pulling device, comprising a mounting plate (1) provided with a first screw rod (2) and two second screw rods (3), characterized in that, Two second screws (3) are respectively threaded through two sides of the mounting plate (1) and are in threaded cooperation, the first screw (2) is threaded through the middle of the mounting plate (1) and is provided with a first limiting structure, the top surface of the mounting plate (1) is rotatably installed with a first nut (4), the first screw (2) passes through the first nut (4) and is in threaded cooperation, the first screw (2) is threaded through an activity plate (5) and is in clearance cooperation, the top surface of the activity plate (5) is rotatably installed with a second nut (6), the first screw (2) passes through the second nut (6) and is in threaded cooperation, the lower end of the first screw (2) is fixedly installed with a mounting block (7), the periphery of the activity plate (5) is respectively hingedly connected to one end of a connecting rod (8), the other end of the connecting rod (8) is hingedly connected to one end of a clamping jaw (9), and the middle part of the clamping jaw (9) is hingedly connected to the mounting block (7).

2. The automobile maintenance pulling device according to claim 1, characterized in that, The lower end of the second screw (3) is rotatably installed with a bottom plate (10).

3. The automobile maintenance pulling device according to claim 1, characterized in that, The first limiting structure comprises a first limiting groove and a first limiting block, the first limiting groove is opened in the outer periphery of the first screw (2), and the first limiting block is fixedly installed in the through hole of the first screw (2) threaded through the mounting plate (1), and the first limiting block is located in the first limiting groove and is in sliding cooperation.

4. The apparatus according to claim 1, wherein the apparatus is characterized by: The transmission structure is arranged between the first nut (4) and the second screw (3), and the transmission structure enables the first screw (2) and the second screw (3) to rotate in opposite directions.

5. The apparatus according to claim 4, wherein the apparatus is characterized by: The transmission structure comprises three gears (11), one of the gears (11) is fixedly installed on the outer periphery of the first nut (4), the second screw (3) passes through the other two gears (11) respectively, the other two gears (11) are rotatably installed on the top surface of the mounting plate (1), the second limiting structure is arranged between the second screw (3) and the corresponding gear (11), and the three gears (11) are in meshing.

6. The apparatus according to claim 5, wherein the apparatus is characterized by: The second limiting structure comprises a second limiting groove and a second limiting block, the second limiting groove is opened in the outer periphery of the second screw (3), and the second limiting block is fixedly installed in the mounting hole of the gear (11), and the second limiting block is located in the second limiting groove and is in sliding cooperation.

7. The device according to any one of claims 1 to 6, characterized in that, The upper end of the second screw (3) is fixedly installed with a handle (12).

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