Lifting frame for automobile maintenance

By introducing an anti-sway structure into the automotive repair lifting device, and using a rotating rod, a limiting rod, and a balance plate to distribute the engine's weight, the instability problem caused by chain swaying is solved, thereby improving the stability and safety of engine lifting.

CN223950640UActive Publication Date: 2026-02-27GUIZHOU ELECTROMECHANICAL VOCATIONAL & TECH COLLEGE (GUIZHOU ELECTRONIC INFORMATION TECHNICIAN COLLEGE)
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Patent Information

Application Number
CN202520744314.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-02-27
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

Existing automotive repair hoisting equipment suffers from chain swaying and instability when hoisting engines, increasing the risk of collisions and damage, reducing repair efficiency, and posing safety hazards.

Method used

The anti-sway structure includes a rotating rod, a limiting rod, and a balance plate. The weight of the engine is distributed by the lifting belt, and the position of the limiting rod is fixed by the locking ring and the threaded rod, forming a stable locking structure to ensure the stability of the lifting.

Benefits of technology

It effectively reduces engine sway, lowers the chance of collision damage, eliminates safety threats, improves the stability and safety of the hoisting process, and avoids accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile maintenance, and discloses an automobile maintenance lifting frame which comprises a lifting frame body, an anti-shaking structure is arranged on the right side of the lifting frame body, and the lifting frame body comprises a large lifting arm and a lifting chain. The anti-shaking structure comprises rotating rods installed on the two sides of the large hoisting arm, limiting rods rotationally connected to the outer portions of the rotating rods and balance plates connected between the hoisting chains. Through the design of an anti-shaking structure, two lifting belts are adopted to share the gravity of an engine, compared with a single chain, stress is more uniform, the shaking trend caused by gravity concentration is effectively reduced, a balance rod and a balance plate act synergistically, the lifting stability is preliminarily maintained structurally, a limiting rod is rotated to a mounting block, a locking ring is connected with a rotating rod, and the stability of the engine is improved. And the position of the limiting rod is rapidly and preliminarily fixed, so that the shaking of the engine in the hoisting process is greatly reduced, and the collision and damage probability of the engine is effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of automotive repair technology, and in particular to an automotive repair hoisting frame. Background Technology

[0002] Cars have gradually become the most convenient means of transportation for daily travel. With the improvement of my country's economic level, more and more families are choosing to purchase cars. With the increasing popularity of cars, the car repair industry has also ushered in rapid development. Car repair is a general term for car maintenance and repair. It refers to the use of technical means to troubleshoot a car that has a malfunction, find the root cause of the malfunction, and take corresponding measures to eliminate the malfunction so that the car can be restored to a certain performance and safety standard. In car repair work, for example, when repairing the engine, it is necessary to use a crane to lift it out.

[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art: In the engine hoisting process of the existing device, relying solely on chain pulling has obvious drawbacks. The engine is heavy, and the upward pulling force will cause the chain to sway, resulting in an extremely unstable hoisting process. This instability brings many adverse effects: On the one hand, it increases the risk of engine collision damage, which may cause dents or scratches on its outer shell, and internal precision parts may also be misaligned due to vibration, seriously affecting subsequent normal use; on the other hand, it poses serious safety hazards to maintenance personnel. The strong inertial force generated by the chain swing can easily cause injury or death if it collides with surrounding equipment or personnel. In addition, due to the chain swaying, maintenance personnel have to frequently adjust the chain position and hoisting rhythm, which undoubtedly prolongs the operation time and greatly reduces the overall maintenance efficiency.

[0004] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the present invention proposes the following basic technical solution: an automobile repair hoisting frame, including a hoisting frame body, wherein an anti-sway structure is provided on the right side of the hoisting frame body, and the hoisting frame body includes a hoisting boom and a hoisting chain;

[0006] The anti-sway structure includes rotating rods installed on both sides of the hoisting boom, limit rods rotatably connected to the outside of the rotating rods, and a balance plate connected to the hoisting chain.

[0007] Preferably, the top of the balance plate is provided with two mounting blocks and a balance bar is installed in the middle of the mounting blocks.

[0008] Preferably, the bottom of the balance plate is provided with two equidistant lifting straps, and the ends of the rotating rods that are far away from each other are provided with threaded grooves.

[0009] Preferably, the inner wall of the screw groove is threadedly connected with a locking ring, the locking ring is threadedly connected with the rotating rod and can limit the position of the limiting rod.

[0010] Preferably, the bottom of the two limiting rods and the inner wall of the mounting block on both sides of the balance plate are provided with threaded holes, and the inner wall of the threaded hole is threadedly connected with a threaded rod.

[0011] Preferably, the outer wall of the limiting rod and outside the threaded hole are further provided with a mounting hole, and the mounting hole is internally provided with a spring piece.

[0012] Preferably, the outer wall of the threaded rod is threadedly connected with a nut, and a gasket is arranged between the nut and the spring piece.

[0013] The beneficial effects of the utility model are:

[0014] Through the design of the anti-shaking structure, the engine gravity is shared by two lifting belts, the stress is more uniform compared with single chain, the shaking trend caused by gravity concentration is effectively reduced, the balance rod and the balance plate cooperate, the stability of lifting is preliminarily maintained from the structure, the limiting rod is preliminarily fixed in position by rotating the limiting rod to the mounting block and connecting the locking ring with the rotating rod, the position of the limiting rod is prevented from shaking at will, then the threaded rod is screwed into the threaded hole, the position of the rotating rod is double-protected, the limiting effect is avoided due to displacement of the rotating rod, at the same time, the nut is rotated to drive the gasket to press the spring piece, the reaction force generated by the spring piece under pressure pushes the nut, the nut is closely attached to the threaded rod, a stable locking structure is formed, so that the limiting rod is firmly fixed, after the position of the limiting rod is determined, the position of the balance plate is also stable, the shaking of the engine during lifting is greatly reduced, in this way, the probability of engine damage due to collision is effectively reduced, the safety threat of inertial force of chain swing to surrounding equipment and personnel is eliminated, and injury accidents are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the embodiment one of the utility model Figure 1 ;

[0016] Figure 2 It is the front view of the utility model

[0017] Figure 3 It is the overall structure diagram of the utility model Figure 2 ;

[0018] Figure 4 It is the schematic diagram of the anti-shaking structure.

[0019] BRIEF DESCRIPTION OF DRAWINGS:

[0020] 1. Lifting frame body; 11. Lifting boom; 12. Lifting chain; 2. Anti-sway structure; 21. Rotating rod; 22. Limiting rod; 23. Balance plate; 24. Mounting block; 25. Balance bar; 26. Lifting strap; 27. Locking ring; 28. Threaded rod; 29. ​​Spring plate. Detailed Implementation

[0021] The following will be combined with the appendix Figure 1 To be continued Figure 4 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly. Example 1

[0023] Please see Figure 1 - Figure 4 As shown, this embodiment provides an automotive repair hoisting frame, including a hoisting frame body 1. An anti-sway structure 2 is provided on the right side of the hoisting frame body 1. The hoisting frame body 1 includes a hoisting boom 11 and a hoisting chain 12. It is worth noting that the hoisting frame body 1 mentioned throughout the text is an existing device. The hoisting boom 11 and the hoisting chain 12 described in the text are both part of the hoisting frame body 1. The description of the hoisting boom 11 and the hoisting chain 12 is to make it easier to display the anti-sway structure. However, this does not mean that the hoisting frame body 1 only includes the hoisting boom 11 and the hoisting chain 12. It also includes cylinders, etc. These belong to the prior art and will not be described in detail.

[0024] The anti-sway structure 2 includes rotating rods 21 installed on both sides of the lifting boom 11, a limiting rod 22 rotatably connected to the outside of the rotating rods 21, and a balance plate 23 connected to the lifting chain 12. The balance plate 23 is connected to the lifting chain 12 through a hook modified by the balance plate 23 itself. This connection method makes subsequent replacement more convenient, and this connection method is a common method.

[0025] The utility model discloses a consider the existing device when hoisting, because single chain is easy to produce the wobble, therefore, through the design of anti -shaking structure 2, adopts two hoisting belts 26 to share the engine gravity, compared with single chain stress is more uniform, effectively reduces the wobble tendency caused by gravity concentration, balance bar 25 and balance plate 23 synergistic effect, from the structure preliminary maintain the stability of hoisting, and rotating limit rod 22 to mounting block 24, through locking ring 27 and swivel rod 21 connection, fast preliminary fixed limit rod 22 position, prevent its casual wobble, then, screw rod 28 is screwed into the threaded hole, double guarantee swivel rod 21 position fixed, avoid the displacement of swivel rod 21 influence limiting effect, at the same time, rotate the nut and drive the gasket extrude spring piece 29, spring piece 29 under the pressure of the reaction force of propelling nut, make the nut and screw rod 28 closely, form the stable locking structure, thereby firmly fixed limit rod 22, limit rod 22 position is determined, the position of balance plate 23 also follows firm, greatly reduce the wobble of engine in the hoisting process, in this way, effectively reduce the engine knock damage probability, eliminate the safety threat of chain swing inertia force to surrounding equipment and personnel, avoid the casualty accident. Example 2

[0026] As Figure 4 - Figure 4 The utility model discloses a consider the existing device when hoisting, because single chain is easy to produce the wobble, therefore, through the design of anti -shaking structure 2, adopts two hoisting belts 26 to share the engine gravity, compared with single chain stress is more uniform, effectively reduces the wobble tendency caused by gravity concentration, balance bar 25 and balance plate 23 synergistic effect, from the structure preliminary maintain the stability of hoisting, and rotating limit rod 22 to mounting block 24, through locking ring 27 and swivel rod 21 connection, fast preliminary fixed limit rod 22 position, prevent its casual wobble, then, screw rod 28 is screwed into the threaded hole, double guarantee swivel rod 21 position fixed, avoid the displacement of swivel rod 21 influence limiting effect, at the same time, rotate the nut and drive the gasket extrude spring piece 29, spring piece 29 under the pressure of the reaction force of propelling nut, make the nut and screw rod 28 closely, form the stable locking structure, thereby firmly fixed limit rod 22, limit rod 22 position is determined, the position of balance plate 23 also follows firm, greatly reduce the wobble of engine in the hoisting process, in this way, effectively reduce the engine knock damage probability, eliminate the safety threat of chain swing inertia force to surrounding equipment and personnel, avoid the casualty accident.

[0027] The two mounting blocks 24 arranged on the top of the balance plate 23 and the balance bar 25 arranged in the middle of the balance plate 23, in combination with the two hoisting belts 26 symmetrically arranged on the bottom, can effectively disperse the gravity of the engine, the balance bar 25 can provide certain support and balance effect in the horizontal direction, so that the whole hoisting system is kept stable in the horizontal direction; and the symmetrically arranged hoisting belts 26 disperse the gravity from the vertical direction, avoiding the inclination and shaking caused by single-point force, so as to ensure that the engine is more stable during hoisting, the mounting hole arranged outside the threaded hole of the outer wall of the limiting rod 22 and the spring sheet 29 arranged inside, in combination with the nut and the gasket, utilize the elastic reaction force of the spring sheet 29 to make the nut and the threaded rod 28 closely fit, this elastic fastening mode can not only compensate the loosening caused by factors such as vibration during hoisting, but also further improve the stability and reliability of the structure.

[0028] It is worth noting that the specific fixing steps of the limiting rod 22 are as follows:

[0029] Firstly, the limiting rod 22 is rotated to the mounting block 24, so that the position of the limiting rod 22 corresponds to that of the mounting block 24, then the locking ring 27 is screwed into the threaded groove of the rotating rod 21, the position of the limiting rod 22 is preliminarily fixed through the threaded connection between the locking ring 27 and the rotating rod 21, so as to prevent it from shaking at will, then the threaded rod 28 is screwed into the threaded hole on the limiting rod 22 and the mounting block 24, forming a double protection, further fixing the position of the rotating rod 21, avoiding the influence of the displacement of the rotating rod 21 on the limiting effect, finally, the nut is screwed into the outside of the threaded rod 28, the gasket is placed between the nut and the spring sheet 29, then the nut drives the gasket to press the spring sheet 29, the spring sheet 29 generates a reaction force under pressure, pushing the nut and the threaded rod 28 to closely fit, forming a stable locking structure, so as to firmly fix the limiting rod 22.

[0030] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.

Claims

1. A car repair hoisting frame, comprising a hoisting frame body (1), characterized in that: The hoisting frame body (1) is provided with an anti-sway structure (2) on the right side. The hoisting frame body (1) includes a hoisting boom (11) and a hoisting chain (12). The anti-sway structure (2) includes a rotating rod (21) installed on both sides of the hoisting boom (11), a limiting rod (22) rotatably connected to the outside of the rotating rod (21), and a balance plate (23) connected to the hoisting chain (12).

2. The automobile repair hoisting frame according to claim 1, characterized in that: The top of the balance plate (23) is provided with two mounting blocks (24) and a balance bar (25) is installed in the middle of the mounting blocks (24).

3. The automotive repair hoisting frame according to claim 2, characterized in that: The bottom of the balance plate (23) is provided with two equidistant lifting straps (26), and the ends of the rotating rods (21) that are far away from each other are provided with threaded grooves.

4. The automobile repair hoisting frame according to claim 3, characterized in that: The inner wall of the threaded groove is threaded with a locking ring (27), which can limit the position of the limiting rod (22) while being threadedly connected to the rotating rod (21).

5. The automotive repair hoisting frame according to claim 4, characterized in that: The bottom of the two limiting rods (22) and the sides of the balance plate (23) and the inner wall of the mounting block (24) are provided with threaded holes, and the inner wall of the threaded holes is threaded with threaded rods (28).

6. The automotive repair hoisting frame according to claim 5, characterized in that: The outer wall of the limiting rod (22) and outside the threaded hole is provided with an installation hole, and a spring plate (29) is installed inside the installation hole.

7. The automotive repair hoisting frame according to claim 6, characterized in that: The threaded rod (28) is externally threaded with a nut and a washer is provided between the nut and the spring plate (29).