Small box fixture anti-falling device

Abstract

This utility model relates to a fall prevention device for small box clamps in the field of aluminum electrolysis technology. It includes a wrench assembly with a hook plate. The upper end of the hook plate is rotatably connected to the lower part of the wrench assembly via a pivot. The lower end of the hook plate has a receiving groove. A locking assembly is fitted to the hook plate, comprising a fixing frame, a roller, and a linkage rod. The fixing frame is fixed to the upper part of the wrench assembly and connected to the roller via a connecting rod. The lower end of the linkage rod is fixedly connected to the hook plate and is angled to correspond to the roller. This utility model effectively improves the safety of the device, significantly reducing equipment damage and personal injury caused by falls. While ensuring safety, it does not add extra operating steps, ensuring efficient and continuous production and avoiding a decrease in production efficiency due to safety measures. The purely mechanical design has no electrical components, possesses excellent dust resistance and high-temperature resistance, high reliability, and significantly reduces maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum electrolysis technology, specifically relating to a device for preventing small box clamps from falling. Background Technology

[0002] In the aluminum electrolysis production process, the multi-functional wrench assembly used in the torsion and pulling mechanism relies on the coordinated operation of the wrench head, hanging plate, and U-shaped clamp to loosen and tighten the small box clamps. During the loosening process of the small box clamps, there is a possibility that the small box clamps may fall. When a 20 kg small box clamp falls from a height of 2 meters, the impact force can reach 120 kg, which can easily cause devastating injuries to personnel and equipment. Although existing technologies have equipped them with fall-prevention hook plates based on the principle of self-weight (such as...) Figure 2 As shown, the hook plate has a receiving groove, which can be used to catch the small box clamp in case of malfunction. However, this device has obvious limitations. It is greatly affected by the wear of the wrench assembly components and human error, and cannot completely eliminate the risk of the small box clamp falling accidentally. Therefore, a small box clamp anti-fall device is urgently needed to solve the above technical problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a small box clamp anti-fall device, including a wrench assembly. The wrench assembly is fitted with a hook plate. The upper end of the hook plate is rotatably connected to the lower part of the frame of the wrench assembly via a rotating shaft. The lower end of the hook plate is provided with a receiving groove. The hook plate is fitted with a locking assembly, which includes a fixing frame, a roller, and a linkage rod. The fixing frame is fixed to the upper part of the wrench assembly and is fixedly connected to a connecting rod. The lower end of the connecting rod is connected to the roller. The linkage rod is inclined and its lower end is fixedly connected to the hook plate. The upper end of the linkage rod extends away from the wrench assembly, and the linkage rod and roller correspond vertically.

[0004] Preferably, the hook plate is connected to a spring, with the lower end of the spring connected to the middle of the hook plate and the upper end of the spring connected to a wrench assembly above the hook plate.

[0005] Preferably, there are two hook plates, which are symmetrically arranged. The two hook plates are rotatably connected to both sides of the wrench assembly via rotating shafts. Each hook plate is connected to a spring, and a connecting plate is fixedly connected between the two hook plates. The linkage rod is fixed at the center of the connecting plate.

[0006] Preferably, the spring is a tension spring.

[0007] Preferably, the wrench assembly includes a frame, a vertical telescopic rod, a connecting frame, and a U-shaped fork plate. The fixed end of the vertical telescopic rod is fixedly connected to the frame, the telescopic end of the vertical telescopic rod is vertically downward and connected to the connecting frame, and the U-shaped fork plate is connected to the lower end of the connecting frame.

[0008] Preferably, the vertical telescopic rod is a hydraulic rod.

[0009] Preferably, the fixing frame is fixedly connected to the machine frame, and the upper end of the spring is connected to the connecting frame.

[0010] This utility model also includes other components that enable the anti-fall device of the small box clamp to function properly, such as the control components for the vertical telescopic rod and the control components for the hydraulic cylinder, which are all conventional technologies in the field. In addition, devices or components not limited in this utility model, such as the frame, the small box clamp, the hydraulic cylinder, the U-shaped fork plate, and the spring, all adopt conventional technologies and conventional equipment in the field.

[0011] Working principle: During operation, the vertical telescopic rod drives the U-shaped fork plate to move downward, and the U-shaped fork plate locks the clamping shaft of the trolley clamp. The wrench assembly loosens the trolley clamp, and then the vertical telescopic rod retracts. The U-shaped fork plate drives the trolley clamp to move upward. The hook plate and the linkage rod fixedly connected to the hook plate move upward with the wrench assembly. During the upward movement, the roller contacts the linkage rod, and the roller pushes the hook plate connected to the linkage rod to rotate around the pivot. The receiving groove of the hook plate extends into the bottom of the small box clamp and cooperates with the clamping shaft to form a stable forced locking state.

[0012] When the operation is completed and the small box clamp needs to be reset, the vertical telescopic rod extends, the U-shaped fork plate moves the trolley clamp downward, and the hook plate and the linkage rod fixed to the hook plate move downward with the wrench assembly. During the downward movement, the roller and the linkage rod separate continuously, and the spring quickly pulls the hook plate away from the wrench assembly. The hook plate is automatically pulled up, effectively avoiding collision with the anode hook.

[0013] The present invention has the following beneficial effects: (1) Effective safety improvement: Through the forced locking function of the mechanical structure, the risk of small box clamp falling is effectively eliminated, a safety line is built for personnel and equipment, and the inherent safety of production is realized. It effectively overcomes traditional safety hazards such as equipment wear and human error, and greatly reduces equipment damage and personal injury caused by falling.

[0014] (2) Improved production efficiency: The device and equipment work closely together in normal operation process, ensuring safety without adding extra operation steps, ensuring high efficiency and continuity of production, and avoiding a decrease in production efficiency due to safety protection measures.

[0015] (3) Reduced maintenance costs: Purely mechanical design with no electrical components, it has excellent dust resistance and high temperature resistance, high reliability, and significantly reduces maintenance costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1This is a schematic diagram of the anti-fall device for the small box clamp in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a small box clamp anti-fall device in the prior art.

[0019] In the diagram: 1. Fixed frame; 2. Connecting rod; 3. Linkage rod; 4. Connecting plate; 5. Hook plate; 6. U-shaped fork plate; 7. Small box clamp; 8. Rotating shaft; 9. Frame; 10. Vertical telescopic rod; 11. Connecting frame; 12. Spring; 13. Roller; 14. Clamping shaft; 15. Receiving groove. Detailed Implementation

[0020] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0021] Example

[0022] like Figure 1 As shown, this utility model provides a small box clamp 7 anti-fall device, including a wrench assembly, the wrench assembly is equipped with a hook plate 5, the upper end of the hook plate 5 is rotatably connected to the lower part of the frame of the wrench assembly through a rotating shaft 8, the lower end of the hook plate 5 is provided with a receiving groove 15, the hook plate 5 is equipped with a locking assembly, the locking assembly includes a fixing frame 1, a roller 13 and a linkage rod 3, the fixing frame 1 is fixedly fixed to the upper part of the wrench assembly, the fixing frame 1 is fixedly connected to a connecting rod 2, the lower end of the connecting rod 2 is connected to the roller 13, the linkage rod 3 is inclined, the lower end of the linkage rod 3 is fixedly connected to the hook plate 5, the upper end of the linkage rod 3 extends away from the wrench assembly, and the linkage rod 3 and the roller 13 are vertically corresponding.

[0023] The hook plate 5 is connected to a spring 12. The lower end of the spring 12 is connected to the middle of the hook plate 5, and the upper end of the spring 12 is connected to the wrench assembly above the hook plate 5. The spring design enables the hook plate to have an automatic reset function. After the equipment moves away from the upper limit, the protective device automatically unlocks, eliminating the need for additional manual operation and ensuring smooth production.

[0024] Two hook plates 5 are provided, and the two hook plates 5 are symmetrically arranged. The two hook plates 5 are rotatably connected to the two sides of the wrench assembly through the rotating shaft 8. The two hook plates 5 are respectively connected to springs 12. A connecting plate 4 is fixedly connected between the two hook plates 5. The linkage rod 3 is fixed at the center of the connecting plate 4.

[0025] The spring 12 is a tension spring 12.

[0026] The wrench assembly includes a frame 9, a vertical telescopic rod 10, a connecting frame 11, and a U-shaped fork plate 6. The fixed end of the vertical telescopic rod 10 is fixedly connected to the frame 9, and the telescopic end of the vertical telescopic rod 10 is vertically downward connected to the connecting frame 11. The U-shaped fork plate 6 is connected to the lower end of the connecting frame 11.

[0027] The vertical telescopic rod 10 is a hydraulic rod.

[0028] The fixed frame 1 is fixedly connected to the frame 9, and the upper end of the spring 12 is connected to the connecting frame 11.

[0029] During operation, the vertical telescopic rod 10 drives the U-shaped fork plate 6 to move downwards, and the U-shaped fork plate 6 locks the clamping shaft 14 of the trolley clamp. The wrench assembly loosens the trolley clamp, and then the vertical telescopic rod 10 retracts. The U-shaped fork plate 6 drives the trolley clamp to move upwards, and the hook plate 5 and the linkage rod 3 fixedly connected to the hook plate 5 move upwards with the wrench assembly. During the upward movement, the roller 13 contacts the linkage rod 3, and the roller 13 pushes the hook plate 5 connected to the linkage rod 3 to rotate around the rotating shaft 8. When it reaches the upper position, the receiving groove 15 of the hook plate 5 extends into the bottom of the small box clamp 7 and cooperates with the clamping shaft 14 to form a stable forced locking state.

[0030] When the operation is completed and the small box clamp 7 needs to be reset, the vertical telescopic rod 10 extends, the U-shaped fork plate 6 drives the trolley clamp to move down, the hook plate 5 and the linkage rod 3 fixedly connected to the hook plate 5 move down with the wrench assembly. During the downward movement (i.e., disengaging from the upper limit position), the roller 13 and the linkage rod 3 continuously separate, and the spring 12 automatically pulls up the hook plate 5, effectively avoiding deformation caused by collision with the anode hook.

[0031] In this embodiment, effective safe production is achieved by using the inherent hydraulic stroke of the equipment as a trigger signal to automate protective actions, completely eliminating the dependence on personnel attention and operational precision, and achieving an intelligent interlocking mechanism.

[0032] Rigid locking technology is adopted, which forces the device into an irreversible locking state the moment it reaches the upper limit, thus preventing the occurrence of danger from the source.

[0033] It has an automatic reset function. After the equipment moves away from the upper limit, the protective device (hook plate) will automatically unlock, without the need for additional manual operation, thus ensuring smooth production.

[0034] The hydraulic cylinders, wrench assemblies, hook plates, U-shaped forks, etc. involved in the anti-fall devices of the small box clamps in the above-mentioned embodiments are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structure and principle, please refer to the product manual or existing technical data, which are all existing technologies.

[0035] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A small box clamp anti-fall device, comprising a wrench assembly, wherein the wrench assembly is fitted with a hook plate (5), the upper end of the hook plate (5) is rotatably connected to the lower part of the wrench assembly via a pivot (8), and the lower end of the hook plate (5) is provided with a receiving groove (15), characterized in that: The hook plate (5) is equipped with a locking assembly, which includes a fixing frame (1), a roller (13) and a linkage rod (3). The fixing frame (1) is fixed on the upper part of the wrench assembly. The fixing frame (1) is fixedly connected to a connecting rod (2). The lower end of the connecting rod (2) is connected to the roller (13). The linkage rod (3) is inclined. The lower end of the linkage rod (3) is fixedly connected to the hook plate (5). The upper end of the linkage rod (3) extends away from the wrench assembly. The linkage rod (3) and the roller (13) are vertically corresponding.

2. The small pocket clamp anti-falling device according to claim 1, characterized in that: The hook plate (5) is connected to a spring (12), the lower end of the spring (12) is connected to the middle part of the hook plate (5), and the upper end of the spring (12) is connected to the wrench assembly above the hook plate (5).

3. The anti-fall device for the small box clamp according to claim 2, characterized in that: There are two hook plates (5), which are symmetrically arranged. The two hook plates (5) are rotatably connected to the two sides of the wrench assembly through a rotating shaft (8). The two hook plates (5) are connected to springs (12) respectively. A connecting plate (4) is fixedly connected between the two hook plates (5). The linkage rod (3) is fixed at the center of the connecting plate (4).

4. The small pocket clamp anti-falling device according to claim 2, characterized in that: The spring (12) is a tension spring (12).

5. The small pocket clamp anti-falling device according to claim 2, characterized in that: The wrench assembly includes a frame (9), a vertical telescopic rod (10), a connecting frame (11), and a U-shaped fork plate (6). The fixed end of the vertical telescopic rod (10) is fixedly connected to the frame (9), and the telescopic end of the vertical telescopic rod (10) is vertically downward connected to the connecting frame (11). The U-shaped fork plate (6) is connected to the lower end of the connecting frame (11).

6. The small pocket clamp anti-falling device according to claim 5, characterized in that: The vertical telescopic rod (10) is a hydraulic rod.

7. The small pocket clamp anti-falling device according to claim 5, characterized in that: The fixed frame (1) is fixedly connected to the frame (9), and the upper end of the spring (12) is connected to the connecting frame (11).

Images