Automobile pretreatment back door lifting tool

By designing an adjustment component to move the threaded seat within the limiting slide, the position adjustment of the fixed frame is achieved, solving the problem that the existing automotive front-end door lifting tooling support rod cannot be adapted to different vehicle models, thus achieving adaptation to different vehicle models.

CN224531082UActive Publication Date: 2026-07-21CHONGQING CORNERSTONE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING CORNERSTONE MASCH CO LTD
Filing Date
2025-07-03
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The support rods of existing automotive front-end handling tailgate lifting fixtures are usually one-piece and cannot be adjusted in length, which makes them unsuitable for different vehicle models with varying tailgate heights, widths, and installation point positions.

Method used

A tooling fixture for lifting the tailgate of a car front-end processing vehicle was designed, including a handle, a fixing bracket, a butterfly bolt, and an adjustment component. The adjustment component consists of a fixed support rod, a fixed seat, a limiting slide, a threaded seat, a movable support rod, a screw, and a rotating component. The rotating component drives the screw to rotate, thereby moving the threaded seat within the limiting slide and adjusting the mounting point and length of the fixing bracket to adapt to different vehicle models.

Benefits of technology

It enables telescopic adjustment based on the mounting point position of the tailgate of different car models, adapting to the tailgate of different car models and solving the problem of the inability to adjust the length of the support rod.

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Abstract

The utility model relates to the technical field of automobile pretreatment, specifically relates to a kind of automobile pretreatment back door lifting tool frock, including handle, fixed frame and butterfly bolt, further include adjusting assembly, adjusting assembly includes fixed support, fixed seat, limit sliding bracket, threaded seat, moving support, screw rod and rotating member, fixed support is fixedly connected with handle, fixed seat is fixedly connected with fixed support, limit sliding bracket is fixedly connected with fixed seat, threaded seat is slidably connected with limit sliding bracket, moving support is fixedly connected with threaded seat and fixed frame respectively, screw rod is connected with fixed seat by rotating member, and is threadedly connected with threaded seat, rotating member is arranged on fixed seat, and is connected with screw rod, the movement of threaded seat can drive the movement of fixed frame on moving support, so that the mounting point of fixed frame can be correspondingly telescopic adjusting support according to the back door mounting point position of different vehicle models, to further enable the length of it to be adjusted to correspond to adapt to different vehicle models.
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Description

Technical Field

[0001] This utility model relates to the field of automotive pre-treatment technology, and in particular to an automotive pre-treatment tailgate lifting fixture. Background Technology

[0002] Automotive pretreatment refers to a series of treatment processes performed on the surface of the car body before electrophoretic coating. Since operators cannot touch the tailgate, a lifting device needs to be designed to support or lift the tailgate to prevent operators from touching it.

[0003] In the prior art, a car front-end tailgate lifting fixture is usually used to support or lift the car tailgate. The car front-end tailgate lifting fixture is usually composed of a handle, a support rod and a fixing frame for fixing the tailgate. The handle and the support rod support and lift the tailgate fixed by the fixing frame.

[0004] However, the support rods of existing lifting devices are usually integral, and the height, width and installation point position of the tailgate of different car models vary significantly, which makes it impossible to adjust the length of the support rods in existing lifting devices to adapt to different car models. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting tool for the tailgate of an automobile front-end processing vehicle, which aims to solve the problem that the support rod of the existing lifting tool is usually an integral piece, while the tailgate height, width and installation point position of different car models are significantly different, making it impossible to adjust the length of the support rod in the existing lifting tool to adapt to different car models.

[0006] To achieve the above objectives, this utility model provides a car front-end tailgate lifting fixture, including a handle, a fixing bracket, and a butterfly bolt. The fixing bracket is located on one side of the handle, and the butterfly bolt is mounted on the fixing bracket.

[0007] It also includes adjustment components,

[0008] The adjustment assembly includes a fixed support rod, a fixed seat, a limiting slide, a threaded seat, a movable support rod, a screw, and a rotating component. The fixed support rod is fixedly connected to the handle and located on one side of the handle. The fixed seat is fixedly connected to the fixed support rod and located on one side of the fixed support rod. The limiting slide is fixedly connected to the fixed seat and located on one side of the fixed seat. The threaded seat is slidably connected to the limiting slide and located on one side of the limiting slide. The movable support rod is fixedly connected to both the threaded seat and the fixed seat, and is located on the side of the threaded seat closer to the fixed seat. The screw is connected to the fixed seat via the rotating component and is threadedly connected to the threaded seat, and is located on the side of the fixed seat closer to the threaded seat. The rotating component is mounted on the fixed seat and connected to the screw.

[0009] The rotating component includes a rotating rod and a rotating head. The rotating rod is rotatably connected to the fixed base and fixedly connected to the screw, and is located on the side of the fixed base closer to the screw. The rotating head is fixedly connected to the rotating rod and is located on the side of the rotating rod away from the screw.

[0010] The rotating component further includes a limiting ring, which is fixedly connected to the rotating rod and located on the side of the rotating rod near the fixed base.

[0011] The rotating component further includes a locking seat and a locking bolt. The locking seat is fixedly connected to the fixed seat and is located on one side of the fixed seat. The locking bolt is disposed on the locking seat and abuts against the limiting ring.

[0012] The adjustment assembly further includes a limiting frame, which is fixedly connected to the limiting slide and located on one side of the limiting slide.

[0013] This utility model discloses a tailgate lifting fixture for automobiles. When the operator needs to adjust the position of the fixed frame, the operator drives the screw to rotate through the rotating component. Under the directional limiting effect of the screw thread and the limiting slide, the screw rotation can drive the threaded seat to move along the longitudinal direction of the limiting slide within the limiting slide. Thus, the movement of the threaded seat can drive the fixed frame on the moving support rod to move, so that the mounting point of the fixed frame can be adjusted to correspond to the tailgate mounting point position of different vehicle models, thereby allowing the length of the support rod to be adjusted to adapt to different vehicle models. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Fig. 1 This is a schematic diagram of the structure of the automotive front-treatment tailgate lifting fixture according to the first embodiment of this utility model.

[0016] Fig. 2 This is a structural schematic diagram of the limiting slide of the first embodiment of this utility model.

[0017] Fig. 3 This is a schematic diagram of the structure of the adjustment component according to the first embodiment of this utility model.

[0018] In the diagram: 101-Handle, 102-Fixed bracket, 103-Butterfly bolt, 104-Fixed support rod, 105-Fixed seat, 106-Limiting slide, 107-Threaded seat, 108-Moving support rod, 109-Screw, 110-Limiting bracket, 111-Rotating rod, 112-Rotating head, 113-Limiting ring, 114-Locking seat, 115-Locking bolt. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] The first embodiment of this application is as follows:

[0021] Please see Figs. 1 to 3 ,in Fig. 1 This is a schematic diagram of the structure of the automotive front-treatment tailgate lifting fixture according to the first embodiment of this utility model. Fig. 2 This is a structural schematic diagram of the limiting slide of the first embodiment of this utility model. Fig. 3 This is a schematic diagram of the structure of the adjustment component according to the first embodiment of this utility model.

[0022] This utility model provides a lifting fixture for a car front-end tailgate, including a handle 101, a fixing frame 102, a butterfly bolt 103, and an adjustment assembly. The adjustment assembly includes a fixed support rod 104, a fixed seat 105, a limiting slide 106, a threaded seat 107, a movable support rod 108, a screw 109, a rotating component, and a limiting frame 110. The rotating component includes a rotating rod 111, a rotating head 112, a limiting ring 113, a locking seat 114, and a locking bolt 115. This solution addresses the problem that existing lifting fixtures typically use a single-piece support rod, while the tailgate height, width, and installation point positions vary significantly across different car models. This prevents the support rod in existing lifting fixtures from being adjusted in length to suit different car models. Therefore, this solution can be used when the length of the lifting fixture support rod needs to be adjusted.

[0023] In this embodiment, the fixing bracket 102 is mounted on the handle 101, and there are two butterfly bolts 103. The two butterfly bolts 103 are mounted on the fixing bracket 102. The butterfly bolts 103 can be used to fix the back door to the fixing bracket 102 by cooperating with the through hole reserved in the back door, and the back door on the fixing bracket 102 can be lifted by the handle 101.

[0024] The fixed support rod 104 is fixedly connected to the handle 101 and located on one side of the handle 101. The fixed seat 105 is fixedly connected to the fixed support rod 104 and located on one side of the fixed support rod 104. The limiting slide 106 is fixedly connected to the fixed seat 105 and located on one side of the fixed seat 105. The threaded seat 107 is slidably connected to the limiting slide 106 and located on one side of the limiting slide 106. The movable support rod 108 is fixedly connected to the threaded seat 107 and the fixed frame 102 respectively, and the movable support rod 108 is located on the side of the threaded seat 107 closer to the fixed frame 102. The screw 109 is connected to the fixed seat 105 through the rotating member. The rotating component is threadedly connected to the threaded seat 107 and located on the side of the fixed seat 105 near the threaded seat 107. The fixed support rod 104 is welded to the handle 101, and the fixed seat 105 is welded to the fixed support rod 104. The limiting slide 106 is welded to the fixed seat 105 and has a limiting slide groove. The threaded seat 107 is slidably connected to the limiting slide 106. The limiting slide 106 can connect, support, and directionally limit the movement of the threaded seat 107. One end of the moving support rod 108 is welded to the threaded seat 107, and the fixed frame 102 is welded to the other end of the moving support rod 108. At one end, the movement of the threaded seat 107 can drive the fixed frame 102 on the movable support rod 108 to move. The screw 109 is connected to the fixed seat 105 through the rotating member, which can drive the screw 109 to rotate. The screw 109 is threadedly connected to the threaded seat 107. Under the directional limiting effect of the thread of the screw 109 and the limiting slide 106, the rotation of the screw 109 can drive the threaded seat 107 to move within the limiting slide 106 along the longitudinal direction of the limiting slide 106. The rotating member is disposed on the fixed seat 105 and connected to the screw 109. The component can drive the screw 109 to rotate, thus enabling the operator to adjust the position of the fixed bracket 102 by rotating the component to drive the screw 109 to rotate. Through the thread of the screw 109 and the directional limiting action of the limiting slide 106 on the threaded seat 107, the rotation of the screw 109 can drive the threaded seat 107 to move within the limiting slide 106 along its length. This movement of the threaded seat 107 can then move the fixed bracket 102 on the moving support rod 108, allowing the mounting point of the fixed bracket 102 to be adjusted according to the tailgate mounting point position of different vehicle models.This allows for length adjustment to accommodate different car models.

[0025] Secondly, the rotating rod 111 is rotatably connected to the fixed base 105 and fixedly connected to the screw 109, and is located on the side of the fixed base 105 closer to the screw 109; the rotating head 112 is fixedly connected to the rotating rod 111 and is located on the side of the rotating rod 111 away from the screw 109. The rotating rod 111 is rotatably connected inside the fixed base 105, and the fixed base 105 provides support for the rotating rod 111 when it rotates. The screw 109 is welded to one end of the rotating rod 111, and the rotating head 112 is welded to the other end of the rotating rod 111. By having the operator drive the rotating head 112 to rotate, the screw 109 can be driven to rotate.

[0026] Meanwhile, the limiting ring 113 is fixedly connected to the rotating rod 111 and is located on the side of the rotating rod 111 close to the fixed seat 105. The limiting ring 113 is welded to the rotating rod 111 and limits its rotation within the fixed seat 105. The limiting ring 113 can prevent the rotating rod 111 from shifting or coming out of the fixed seat 105 when it rotates within the fixed seat 105.

[0027] In addition, the locking seat 114 is fixedly connected to the fixed seat 105 and is located on one side of the fixed seat 105; the locking bolt 115 is disposed on the locking seat 114 and abuts against the limiting ring 113; the locking seat 114 is welded to the fixed seat 105; the locking seat 114 has a threaded hole; the locking bolt 115 is disposed on the locking seat 114; by turning the locking bolt 115, the locking bolt 115 can be screwed into the locking seat 114 and pass through the fixed seat 105 to abut against the limiting ring 113; thereby, the rotation of the rotating rod 111 can be locked when necessary by the abutment of the locking bolt 115.

[0028] Finally, the limiting frame 110 is fixedly connected to the limiting slide 106 and is located on one side of the limiting slide 106. The limiting frame 110 is welded to the limiting slide 106. The limiting frame 110 can limit the threaded seat 107 that moves within the limiting slide 106, thereby preventing the threaded seat 107 from moving out of the limiting frame 110 when it moves within the limiting slide 106.

[0029] When using the automotive front-end tailgate lifting fixture of this embodiment, if the operator needs to adjust the position of the fixed frame 102, the operator drives the screw 109 to rotate through the rotating component. Under the directional limiting effect of the thread of the screw 109 and the limiting slide 106 on the threaded seat 107, the rotation of the screw 109 can drive the threaded seat 107 to move along the longitudinal direction of the limiting slide 106 within the limiting slide 106. Thus, the movement of the threaded seat 107 can drive the fixed frame 102 on the moving support rod 108 to move, so that the mounting point of the fixed frame 102 can be adjusted to correspond to the tailgate mounting point position of different vehicle models, thereby allowing its length to be adjusted to adapt to different vehicle models.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A tooling for lifting a tailgate in an automotive pre-treatment system, comprising a handle, a fixing bracket, and a butterfly bolt, wherein the fixing bracket is located on one side of the handle, and the butterfly bolt is disposed on the fixing bracket, characterized in that, It also includes adjustment components, The adjustment assembly includes a fixed support rod, a fixed seat, a limiting slide, a threaded seat, a movable support rod, a screw, and a rotating component. The fixed support rod is fixedly connected to the handle and located on one side of the handle. The fixed seat is fixedly connected to the fixed support rod and located on one side of the fixed support rod. The limiting slide is fixedly connected to the fixed seat and located on one side of the fixed seat. The threaded seat is slidably connected to the limiting slide and located on one side of the limiting slide. The movable support rod is fixedly connected to both the threaded seat and the fixed seat, and is located on the side of the threaded seat closer to the fixed seat. The screw is connected to the fixed seat via the rotating component and is threadedly connected to the threaded seat, and is located on the side of the fixed seat closer to the threaded seat. The rotating component is mounted on the fixed seat and connected to the screw.

2. The automotive pre-treatment tailgate lifting fixture as described in claim 1, characterized in that, The rotating component includes a rotating rod and a rotating head. The rotating rod is rotatably connected to the fixed base and fixedly connected to the screw, and is located on the side of the fixed base closer to the screw. The rotating head is fixedly connected to the rotating rod and is located on the side of the rotating rod away from the screw.

3. The automotive pre-treatment tailgate lifting fixture as described in claim 2, characterized in that, The rotating component also includes a limiting ring, which is fixedly connected to the rotating rod and located on the side of the rotating rod near the fixed base.

4. The automotive pre-treatment tailgate lifting fixture as described in claim 3, characterized in that, The rotating component also includes a locking seat and a locking bolt. The locking seat is fixedly connected to the fixed seat and is located on one side of the fixed seat. The locking bolt is disposed on the locking seat and abuts against the limiting ring.

5. The automotive pre-treatment tailgate lifting fixture as described in claim 1, characterized in that, The adjustment assembly also includes a limiting frame, which is fixedly connected to the limiting slide and located on one side of the limiting slide.