Hoisting device for automobile part quenching

Abstract

The utility model relates to a hoisting device for quenching automobile parts, and aims to solve the technical problems that a chain is easy to shake when no automobile parts are hung as a current hook is exposed outside when not in use, the hook at the lower end of the chain is easy to hurt the head of a human body and the like, and the potential safety hazard of higher safety exists. A lifting lug is welded to the top of the I-shaped steel, a chain is connected to the bottom of the I-shaped steel, a protective cylinder is connected to the bottom of the chain, rectangular holes are formed in the two ends of the protective cylinder, a connecting shaft is rotationally connected between the two sides of an inner cavity of the protective cylinder, a pull rod is installed in the middle of the connecting shaft, and a hook is installed at the bottom of the pull rod. According to the safety protection device, when the safety protection device is not used, the hook is contained in the protection barrel, meanwhile, the outer side of the protection barrel is flexible by being matched with the protection pad, and therefore the situation that when the hook is not used, the hook is arranged on the outer side, and consequently a person is prone to being hurt by collision is avoided, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of quenching of automotive parts, specifically a hoisting device for quenching automotive parts. Background Technology

[0002] According to publicly available patent CN221625620U, a lifting device for quenching automotive parts relates to the field of automotive parts quenching technology. This lifting device includes an I-beam, with a lifting lug fixedly installed on the upper surface of the I-beam and a connecting ring fixedly installed on the lower surface. In the process of developing this invention, the inventors discovered that at least the following problems remain unresolved in the prior art: By connecting a steel cylinder to a sliding rod with a wire rope, when the hook is lifting an automotive part, the steel cylinder moves the soft rubber sleeve upwards, preventing the heated automotive part from being damaged by excessively high temperatures. However, when the hook is not... When hoisting automotive parts, the steel cylinder moves downwards due to its own weight, causing the soft rubber sleeve to move downwards as well. This ensures that when the lower end of the device collides with a person's body, the soft rubber sleeve makes contact with the body first, achieving flexible contact. This allows the soft rubber sleeve to move automatically up and down according to the working conditions, eliminating the need for manual operation and improving the device's safety and convenience. However, traditional hooks are exposed when not in use, causing the chain to sway when no automotive parts are suspended, potentially leading to the hook at the lower end of the chain hitting a person's head, posing a significant safety hazard. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a lifting device for quenching automotive parts. This device solves the technical problem that when the hook is not in use, it is exposed on the outside, which makes the chain prone to shaking when there is no suspended automotive parts. Consequently, the hook at the lower end of the chain may hit the head of the human body, posing a significant safety hazard.

[0004] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a lifting device for quenching automotive parts is designed, including an I-beam, a lifting lug welded to the top of the I-beam, a chain connected to the bottom of the I-beam, a protective cylinder connected to the bottom of the chain, rectangular holes at both ends of the protective cylinder, a connecting shaft rotatably connected between the two sides of the inner cavity of the protective cylinder, a pull rod installed in the middle of the connecting shaft, a hook installed at the bottom of the pull rod, torsion springs provided on the outside of the connecting shaft on both sides of the pull rod, and a protective pad installed on the outside of the protective cylinder.

[0005] Preferably, connecting discs are sleeved on both outer sides of the connecting shaft, and both connecting discs are connected to the inner wall of the protective cylinder. An arc-shaped limiting groove is opened at the opposite end of each of the two connecting discs. A limiting rod is slidably connected in each of the two arc-shaped limiting grooves, and both limiting rods are connected to the pull rod.

[0006] Preferably, a through hole is provided on one side of the inner side of the arc-shaped limiting groove, and fixing bolts are provided through both ends of the protective cylinder. A threaded hole is provided on one side of the outer side of the limiting rod, and the fixing bolt is threadedly connected to the through hole and the threaded hole.

[0007] Preferably, the arc of the arc-shaped limiting groove is 180°, and the inner cavity size of the arc-shaped limiting groove is adapted to the outer size of the limiting rod.

[0008] Preferably, the height of the rectangular hole is greater than the length of the connection between the pull rod and the hook.

[0009] Preferably, the length of the fixing bolt is greater than the distance between the outer side of the protective cylinder and the threaded hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model combines a protective cylinder, a rectangular hole, a connecting shaft, a pull rod, a torsion spring, and other structures. The connecting shaft rotates the hook 180° vertically downwards from the rectangular hole, while simultaneously tensioning the torsion spring. This allows the hook to suspend and move automotive parts requiring quenching for quenching. When the hook is not in use, the torsion spring automatically rotates the hook through the rectangular hole to the inside of the protective cylinder, thus storing the hook in the protective cylinder when not in use. The protective pad ensures the outer side of the protective cylinder is flexible, preventing the hook from being easily injured by bumping into people when not in use, thereby improving safety.

[0012] 2. This utility model combines a limiting rod and a limiting groove. The limiting rod guides the movement within the arc-shaped limiting groove, ensuring that the hook is vertically downward and aligned with the protective cylinder and chain during use. This facilitates the suspension of automotive parts and allows the hook to be completely stored inside the protective cylinder when not in use. This prevents the hook from rotating too much or too little, which could result in the hook being unable to provide collision protection on the outside of the protective cylinder.

[0013] 3. This utility model combines a fixing bolt and a threaded hole. When the hook is in use, the fixing bolt is screwed into the threaded hole by turning the thread, thereby limiting the position of the hook during use and improving the stability of the hook during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the protective cylinder and the hook of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the hook, connecting shaft, and limiting rod of this utility model;

[0017] Figure 4 This is a schematic diagram of the connecting disc structure of this utility model.

[0018] In the diagram: 1. I-beam; 11. Lifting lug; 12. Chain; 2. Protective cylinder; 21. Rectangular hole; 22. Protective pad; 23. Connecting plate; 24. Arc-shaped limiting groove; 25. Through hole; 3. Pull rod; 31. Hook; 32. Connecting shaft; 33. Limiting rod; 34. Threaded hole; 4. Torsion spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Example 1: A hoisting device for quenching automotive parts, see [link / reference] Figures 1 to 4 The system includes an I-beam 1, with a lifting lug 11 welded to its top. A chain 12 is connected to the bottom of the I-beam 1, and a protective cylinder 2 is connected to the bottom of the chain 12. Rectangular holes 21 are provided at both ends of the protective cylinder 2. A connecting shaft 32 is rotatably connected between the two sides of the inner cavity of the protective cylinder 2. A pull rod 3 is installed in the middle of the connecting shaft 32, and a hook 31 is installed at the bottom of the pull rod 3. The height of the rectangular hole 21 is greater than the length connecting the pull rod 3 and the hook 31. Torsion springs 4 are provided on the outside of the connecting shaft 32 on both sides of the pull rod 3. A protective cylinder 2 is installed on the outside of the protective cylinder 2. During operation, the protective pad 22 rotates the hook 31 vertically downward through the rectangular hole 21 via the connecting shaft 32, while simultaneously tensioning the torsion spring 4. This allows the hook 31 to suspend and move the automotive parts requiring quenching for quenching. When the hook 31 is not in use, the elastic force of the torsion spring 4 automatically rotates the hook 31 through the rectangular hole 21 to the inside of the protective cylinder 2, thus storing the hook 31 in the protective cylinder 2 when not in use. At the same time, the protective pad 22 makes the outer side of the protective cylinder 2 flexible, thereby preventing the hook 31 from being placed on the outside when not in use and easily causing injury to personnel, thus improving safety.

[0021] For details, see Figure 3 and Figure 4The connecting shaft 32 has connecting discs 23 on both outer sides, and both connecting discs 23 are connected to the inner wall of the protective cylinder 2. An arc-shaped limiting groove 24 is provided at one opposite end of each connecting disc 23. A limiting rod 33 is slidably connected within each arc-shaped limiting groove 24, and both limiting rods 33 are connected to the pull rod 3. The arc of the arc-shaped limiting groove 24 is 180°, and the inner cavity size of the arc-shaped limiting groove 24 is adapted to the outer size of the limiting rod 33. The limiting rod 33 guides the movement within the arc-shaped limiting groove 24, ensuring that the hook 31 is vertically downward and aligned with the protective cylinder 2 and the chain 12 during use. This facilitates the suspension of automotive parts and allows the hook 31 to be completely stored inside the protective cylinder 2 when not in use, preventing the hook 31 from rotating too much or too little and thus failing to provide collision protection on the outside of the protective cylinder 2.

[0022] Further, see Figure 2 and Figure 3 The inner side of the arc-shaped limiting groove 24 is provided with a through hole 25. Both ends of the protective cylinder 2 are provided with fixing bolts. The outer end of the limiting rod 33 is provided with a threaded hole 34. The length of the fixing bolt is greater than the distance between the outer side of the protective cylinder 2 and the threaded hole 34. The fixing bolt is threadedly connected to the threaded hole 34 through the through hole 25. When the hook 31 is in use, the fixing bolt is screwed into the threaded hole 34 by turning the thread, thereby limiting the hook 31 during use and improving the stability of the hook 31 during use.

[0023] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0024] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A quenching device for automobile parts, comprising an I-beam (1), characterized in that, The top of the I-shaped steel (1) is welded with a lifting lug (11), the bottom of the I-shaped steel (1) is connected with a chain (12), the bottom of the chain (12) is connected with a protective cylinder (2), the both ends of the protective cylinder (2) are provided with rectangular holes (21), the inner cavity of the protective cylinder (2) is rotatably connected with connecting shafts (32) between the both sides, the middle of the connecting shaft (32) is installed with a pull rod (3), the bottom of the pull rod (3) is installed with a hook (31), the outer part of the connecting shaft (32) on the both sides of the pull rod (3) is provided with torsional springs (4), and the outer side of the protective cylinder (2) is installed with protective pads (22).

2. The hoisting device for quenching of automobile parts according to claim 1, characterized in that, The outer part of the connecting shaft (32) is sleeved with connecting discs (23) on the both sides, the connecting discs (23) are connected with the inner wall of the protective cylinder (2), the opposite ends of the connecting discs (23) are provided with arc-shaped limiting grooves (24), the limiting grooves (24) are slidably connected with limiting rods (33), and the limiting rods (33) are connected with the pull rod (3).

3. The hoisting device for quenching of automobile parts according to claim 2, wherein The inner side of the arc-shaped limiting groove (24) is provided with a perforation (25), the both ends of the protective cylinder (2) are penetrated with fixing bolts, the outer side of the limiting rod (33) is provided with a threaded hole (34), and the fixing bolt is screwed with the threaded hole (34) through the perforation (25).

4. The hoisting device for quenching of automobile parts according to claim 2, wherein The arc of the arc-shaped limiting groove (24) is 180°, and the inner cavity size of the arc-shaped limiting groove (24) is matched with the outer size of the limiting rod (33).

5. The hoisting device for quenching of automobile parts according to claim 1, wherein The height of the rectangular hole (21) is greater than the length of the pull rod (3) and the hook (31).

6. The hoisting device for quenching of automobile parts according to claim 3, wherein The length of the fixing bolt is greater than the distance between the outer side of the protective cylinder (2) and the threaded hole (34).

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