Electric top bracing device for repairing automobile collision deformation

Abstract

The application relates to the technical field of automobile repair tools, and discloses an electric jacking device for repairing automobile collision deformation, which comprises an outer shell body, a power unit is arranged in the outer shell body, front and rear flange covers are fixed to the two ends of the outer shell body through screws, a handle is detachably connected and arranged on the lower surface of the outer shell body, a rechargeable battery is connected and arranged at the lower end of the handle through buckling, a control switch is arranged on the handle, and a jacking mechanism is arranged on the power output end of the power unit. The electric motor driving combined with the screw transmission structure can realize fast and stable linear jacking action, greatly improves the repairing efficiency, reduces the labor intensity of the operator, the jacking pipe is provided with a limiting sliding groove on the outer side, and the limiting screw on the guide sleeve is matched, axial deviation in the jacking process is effectively prevented, the accuracy of the jacking direction is ensured, and secondary damage to the vehicle body is avoided.

Description

Technical Field

[0001] This application relates to the field of automotive repair tools, and in particular to an electric jack for repairing automotive collision deformation. Background Technology

[0002] In the field of automotive collision repair, localized deformation of the vehicle body due to an accident is a common problem. During the repair process, it is usually necessary to restore the dented or deformed sheet metal parts to their original shape. Traditional repair methods mainly rely on hydraulic jacks, manual screw jacks, or simple lever tools, all of which have significant limitations in operation. Hydraulic jacks require a manual pump to provide pressure, making the operation cumbersome, resulting in slow jacking speeds, and the risk of hydraulic oil leakage can lead to unstable pressure maintenance. While manual screw jacks do not require hydraulic oil, they rely entirely on manual rotation for adjustment, which is inefficient, especially in confined spaces or scenarios requiring continuous fine-tuning.

[0003] Therefore, there is an urgent need for an electric-driven, stable, portable, and easy-to-operate automotive collision deformation repair support device to improve repair efficiency and quality. Utility Model Content

[0004] This application proposes an electric jacking device for repairing automotive collision deformation in order to solve the above-mentioned problems.

[0005] The technical solution of this application is implemented as follows:

[0006] An electric jacking device for repairing automotive collision deformation includes a housing, a power unit installed inside the housing, a front flange cover and a rear flange cover fixed to both ends of the housing by screws, a handle detachably connected to the lower surface of the housing, a rechargeable battery connected to the lower end of the handle by a snap-fit, a control switch connected in series between the power unit and the rechargeable battery on the handle, an ejection mechanism driven by the power output end of the power unit, a guide sleeve threadedly connected to the outer end face of the front flange cover, the ejection mechanism installed inside the guide sleeve, a limiting screw installed on the side wall of the guide sleeve to ensure smooth extension and retraction of the ejection mechanism, and a front end cap threadedly installed at the end of the guide sleeve away from the front flange cover to cooperate with the ejection mechanism.

[0007] Furthermore, the power unit includes a mounting bracket fixed inside the housing, a motor electrically connected to the control switch is fixed on one side of the mounting bracket, and a striking block driven by the motor is fixed on the other side of the mounting bracket. The ejection mechanism is installed at the power output end of the striking block.

[0008] Furthermore, the ejection mechanism includes an ejection tube slidably installed in the guide sleeve. A limiting groove is formed on the outer wall of the ejection tube along the length direction to cooperate with the limiting screw. A sliding sleeve is integrally formed at one end of the ejection tube near the outer shell and slidably installed in the guide sleeve. A screw is rotatably installed in the sliding sleeve. One end of the screw passes through the front flange cover and is inserted into the power output end of the impact block.

[0009] Furthermore, a front auxiliary module is detachably connected to the end of the ejector tube away from the outer casing.

[0010] Furthermore, a rear auxiliary module is detachably connected to the rear flange cover, and the rear auxiliary module includes a rear top block.

[0011] Furthermore, the rear auxiliary module also includes an extension rod, which is detachably connected and installed between the rear top block and the rear flange cover.

[0012] By adopting the above technical solution, the beneficial effects of this application are as follows:

[0013] 1. The motor-driven screw transmission structure enables fast and stable linear ejection, which greatly improves repair efficiency and reduces the labor intensity of operators. The limit groove on the outside of the ejection tube cooperates with the limit screw on the guide sleeve to effectively prevent axial displacement during ejection, ensure the accuracy of the ejection direction, and avoid secondary damage to the vehicle body.

[0014] 2. The device adopts a modular design with detachable auxiliary modules at both the front and rear ends. Different shaped top blocks or extension rods can be flexibly replaced according to the actual repair location, which significantly improves the tool's adaptability and ease of use. The overall structure is compact, and the handle integrates a rechargeable battery and control switch. It is simple to operate, easy to carry, and particularly suitable for use in vehicle repair scenarios with limited space. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the main sectional view of this application;

[0017] Figure 2 This is the front view of this application;

[0018] Figure 3This is the first perspective view of this application;

[0019] Figure 4 This is the second perspective view of this application;

[0020] Figure 5 This is a top view of this application;

[0021] Figure 6 This is a circuit structure block diagram of this application.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Outer casing; 2. Power unit; 21. Mounting bracket; 22. Motor; 23. Strike block; 3. Handle; 4. Rechargeable battery; 5. Control switch; 51. Switch; 6. Front flange cover; 61. Guide sleeve; 62. Front end cover; 63. Limit screw; 7. Rear flange cover; 8. Ejection mechanism; 81. Screw; 82. Sliding sleeve; 83. Ejection tube; 84. Limiting groove; 9. Rear auxiliary module; 91. Rear ejector block; 92. Extension rod; 10. Front auxiliary module. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] like Figures 1-6As shown, an electric jacking device for repairing automotive collision deformation includes a housing 1, a power unit 2 installed inside the housing 1, a front flange cover 6 and a rear flange cover 7 fixed to both ends of the housing 1 by screws, a handle 3 connected to the lower surface of the housing 1 by screws, and a rechargeable battery 4 (12-24V lithium battery) connected to the lower end of the handle 3 by a snap-fit ​​connection. A control switch 5 connected in series between the power unit 2 and the rechargeable battery 4 is installed on the handle 3, and a forward / reverse switch 51 is installed on the handle 3 corresponding to the position of the control switch 5. The switch 51 is a forward / reverse control switch similar to that of a pistol drill or an electric wrench. An ejection mechanism 8 is installed at the power output end of the power unit 2. A guide sleeve 61 is threadedly installed on the outer end face of the front flange cover 6. The ejector mechanism 8 is installed inside the guide sleeve 61. Two limit screws 63 are installed on the side wall of the guide sleeve 61 to ensure the smooth extension and retraction of the ejector mechanism 8. The limit screws 63 are installed along the axial direction of the guide sleeve 61. The limit screws 63 cooperate with the limit structure on the ejector mechanism 8 to prevent the ejector mechanism 8 from rotating during the extension and retraction process, ensuring smooth linear movement and improving the ejection accuracy. A front cover 62 that cooperates with the ejector mechanism 8 is threadedly installed on the end of the guide sleeve 61 away from the front flange cover 6. The front cover 62 is threadedly connected for easy disassembly, which facilitates regular maintenance or replacement of parts of the ejector mechanism 8 and extends the service life of the device.

[0026] In another preferred embodiment of the present invention, the power unit 2 includes a mounting bracket 21 fixed inside the outer casing 1. A motor 22 electrically connected to the control switch 5 is fixed to one side of the mounting bracket 21, and a striking block 23, which is drive-connected to the motor 22, is fixed to the other side of the mounting bracket 21. An ejection mechanism 8 is installed at the power output end of the striking block 23. The striking block 23 uses the striking block assembly disclosed in patent publication number CN212601569U, used to increase the torque of the motor 22 driving the screw 81 to rotate. Specifically, the power output shaft of the motor 22 is directly connected to the striking block 23. The striking block includes a drive shaft with a central hole, an impact spring, and... An impact block has an impact cylinder connected to a drive shaft for mounting gears. The impact block has a through-hole stepped hole, and its end face has a positioning groove for embedding one end of an impact spring. A middle washer is placed in the positioning groove. The end of the drive shaft passes through the stepped hole, and a rubber washer is placed on the end face of the impact cylinder. The impact spring is sleeved on the drive shaft and positioned between the rubber washer and the middle washer. A connecting shaft is located in the center hole of the drive shaft, and a connecting groove is formed on its end face. Multiple mounting grooves are formed on the outer wall of the connecting shaft, and V-shaped spring pieces are placed in each mounting groove, with the end points of the V-shaped spring pieces extending out of the mounting grooves. A rubber support pad is placed between the V-shaped spring pieces and the mounting grooves. In use, the motor output shaft of motor 22 is connected to the connecting shaft of the impact block through the connecting groove. The end of the connecting shaft is embedded in the center hole of the drive shaft and connected to the drive shaft. The apex of the V-shaped spring plate will overlap with the inner wall of the center hole of the drive shaft under its elastic force and the elastic support of the rubber support pad, ensuring the reliability of the connection between the connecting shaft and the drive shaft. This ensures that the connecting shaft can reliably drive the drive shaft to rotate, and the drive shaft drives the screw 81 to rotate to perform the operation, thereby providing sufficient support force to cope with the high resistance scenario in automobile collision deformation repair. This design reduces the wear caused by the direct drive connection of the motor output shaft to the screw.

[0027] In another preferred embodiment of the present invention, the ejection mechanism 8 includes an ejection tube 83 slidably mounted within a guide sleeve 61. A limiting groove 84, which mates with a limiting screw 63, is formed along the length of the outer wall of the ejection tube 83. A sliding sleeve 82, slidably mounted within the guide sleeve 61, is integrally formed at one end of the ejection tube 83 near the outer casing 1. A screw 81 is rotatably mounted within the sliding sleeve 82. One end of the screw 81 passes through the front flange cover 6 and is inserted into the power output end of the striking block 23. Specifically, the screw 81 and the striking block 23 are connected via a spline or square shaft to ensure reliable torque transmission and prevent slippage. The sliding sleeve 82 and the guide sleeve 61 are slidably mounted with a clearance fit, which reduces wear and ensures smooth linear movement of the ejection tube 83. The mating structure of the limiting groove 84 and the limiting screw 63 not only prevents rotation but also limits the stroke range of the ejection tube 83, preventing excessive ejection that could damage the equipment or cause a safety accident.

[0028] In another preferred embodiment of the present invention, the end of the ejector tube 83 furthest from the outer casing 1 is detachably connected to a front auxiliary module 10. Specifically, the detachable connection is a threaded connection or a quick-clamp connection, which facilitates the replacement of front auxiliary modules 10 with different shapes, such as flat tops, concave tops, or pointed tops, to meet the repair needs of different collision deformation parts. This modular design improves the applicability and flexibility of the device, enabling operators to quickly adjust the support contact points according to the specific deformation, thereby improving repair efficiency.

[0029] In another preferred embodiment of the present invention, a rear auxiliary module 9 is detachably connected to the rear flange cover 7. The rear auxiliary module 9 includes a rear top block 91. As a further optimization, the rear auxiliary module 9 also includes an extension rod 92, which is detachably connected between the rear top block 91 and the rear flange cover 7. Specifically, the detachable connection is a threaded connection. The rear top block 91 provides a stable support surface to prevent the device from sliding or tilting during the support process. The extension rod 92 extends the overall length of the device to adapt to deformation repair scenarios of different depths, such as operation inside a vehicle frame or in a narrow space, enhancing the versatility and practicality of the device.

[0030] The working principle of this application is as follows: the operator holds the device and places it inside the deformation area of ​​the vehicle, so that the rear auxiliary module 9 contacts the vehicle beam or the ground and other stable parts, the front auxiliary module 10 is aligned with the deformation position to be repaired, the control switch 5 on the handle 3 is turned on, the rechargeable battery 4 supplies power to the motor 22, the motor 22 outputs torque and directly transmits it to the striking block 23.

[0031] The striking block 23 transmits the rotational motion of the motor 22 to the screw 81 that is plugged into it. The screw 81 is screwed into the sliding sleeve 82 that is slidably installed in the guide sleeve 61. Since the sliding sleeve 82 and the ejector tube 83 are integrally formed, and the ejector tube 83 forms a sliding constraint with the limiting screw 63 on the guide sleeve 61 through the limiting groove 84 on its outer wall, the rotational motion of the screw 81 will be converted into the linear extension or retraction motion of the ejector tube 83.

[0032] As the ejector tube 83 gradually extends, the front auxiliary module 10 applies a continuous pushing force to the deformed part until the deformed part returns to the expected shape. During this process, the cooperation between the limit screw 63 and the limit slide 84 ensures the straightness and stability of the ejector tube 83's movement, avoiding twisting or deviation. After the support is completed, the direction of the motor 22 can be changed by switching the forward and reverse rotation switch 51, which allows the ejector tube 83 to retract, making it easy to remove the device from the repair position.

[0033] The circuit connections involved in this application are conventional methods used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They belong to widely used prior art.

[0034] Components not described in detail in this article are existing technologies.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electric jacking device for repairing automotive collision deformation, characterized in that: The device includes an outer shell (1), inside which a power unit (2) is installed. A front flange cover (6) and a rear flange cover (7) are fixed to both ends of the outer shell (1) by screws. A handle (3) is detachably connected to the lower surface of the outer shell (1). A rechargeable battery (4) is installed at the lower end of the handle (3) by a snap-fit ​​connection. A control switch (5) is installed on the handle (3) and connected in series between the power unit (2) and the rechargeable battery (4). An ejection mechanism (8) is installed at the power output end of the power unit (2). A guide sleeve (61) is installed on the outer end face of the front flange cover (6) by a threaded connection. The ejection mechanism (8) is installed inside the guide sleeve (61). A limiting screw (63) is installed on the side wall of the guide sleeve (61) to ensure the smooth extension and retraction of the ejection mechanism (8). A front end cover (62) that cooperates with the ejection mechanism (8) is installed at the end of the guide sleeve (61) away from the front flange cover (6) by a thread.

2. The electric jacking device for repairing automotive collision deformation according to claim 1, characterized in that: The power unit (2) includes a mounting bracket (21) fixed inside the outer casing (1). A motor (22) electrically connected to the control switch (5) is fixed on one side of the mounting bracket (21), and a striking block (23) driven by the motor (22) is fixed on the other side of the mounting bracket (21). The ejection mechanism (8) is installed at the power output end of the striking block (23).

3. The electric jacking device for repairing automotive collision deformation according to claim 2, characterized in that: The ejection mechanism (8) includes an ejection tube (83) that is slidably installed in the guide sleeve (61). A limiting groove (84) that is fitted to the limiting screw (63) is formed on the outer wall of the ejection tube (83) along the length direction. A sliding sleeve (82) that is slidably installed in the guide sleeve (61) is integrally formed at one end of the ejection tube (83) near the outer shell (1). A screw (81) is rotatably installed in the sliding sleeve (82). One end of the screw (81) passes through the front flange cover (6) and is inserted into the power output end of the striking block (23).

4. The electric jacking device for repairing automotive collision deformation according to claim 3, characterized in that: The end of the ejector tube (83) away from the outer casing (1) is detachably connected to a front auxiliary module (10).

5. The electric jacking device for repairing automotive collision deformation according to claim 1, characterized in that: A rear auxiliary module (9) is detachably connected to the rear flange cover (7), and the rear auxiliary module (9) includes a rear top block (91).

6. The electric jacking device for repairing automotive collision deformation according to claim 5, characterized in that: The rear auxiliary module (9) also includes an extension rod (92), which is detachably connected between the rear top block (91) and the rear flange cover (7).

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