An inverter replacement hoisting tool
By designing a pulley block and clamping assembly for inverter replacement hoisting, the problem of difficult replacement caused by the large size and weight of inverters was solved, and convenient and safe hoisting of inverters was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CGN NEW ENERGY BENGBU CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
Inverters are difficult for workers to replace due to their large size and weight.
An inverter replacement hoisting fixture including a pulley block and a clamping assembly was designed. The pulley block uses a combination of fixed and movable pulleys with a rope to reduce the lifting force, and the clamping assembly is fixed to the bracket by clamps and screws, thus enabling convenient hoisting of the inverter.
This reduces the labor intensity of lifting inverters and improves the convenience and safety of inverter replacement.
Smart Images
Figure CN224512999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inverter installation technology, specifically to an inverter replacement hoisting tool. Background Technology
[0002] An inverter is a power electronic device that converts direct current (DC) to alternating current (AC). It modulates and transforms DC power through internal circuits (such as inverter bridges, control logic, and filter circuits) to output AC power that meets the requirements, thereby satisfying the needs of different electrical devices. It plays a very important role. When an inverter is damaged, it needs to be replaced. However, because inverters are large in size and weight, it is difficult for workers to replace them. Therefore, there is a need to provide a hoisting tool for inverter replacement. Utility Model Content
[0003] The purpose of this invention is to provide an inverter replacement hoisting tool to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An inverter replacement hoisting fixture includes: A pulley system, comprising a fixed pulley and a movable pulley hooked on a connecting ring, and a pull rope disposed on the fixed pulley and the movable pulley, wherein pulling the pull rope causes the movable pulley to move; The clamping assembly includes a clamping base plate, a plate disposed at one end of the clamping base plate, a threaded tube disposed at the other end of the clamping base plate, a screw inserted into the threaded tube, and a clamping plate disposed on the screw. When the connecting ring is sleeved on the clamping base plate, rotating the screw causes the plate and the clamping plate to fix the clamping base plate on the clamping platform.
[0005] Preferably, the connecting ring includes a U-shaped rod, a connecting ring body disposed on the U-shaped rod, and a connecting rod inserted into the connecting ring body.
[0006] Preferably, both the fixed pulley and the movable pulley include symmetrically arranged side plates, a rotating pulley and a rope-receiving rod arranged between the side plates, a hook arranged on the side plate, an anti-detachment plate arranged on the hook, and a return spring arranged between the hook and the anti-detachment plate.
[0007] Preferably, the U-shaped rod is sleeved on the clamping base plate, and the hook corresponding to the fixed pulley is connected to the connecting rod.
[0008] Preferably, one end of the pull rope is connected to the rope receiving rod of the fixed pulley, and the other end passes through the rotating pulley of the movable pulley and rests on the rotating pulley of the fixed pulley.
[0009] Compared with the prior art, the beneficial effects of this utility model are: This invention reduces the pulling force required for users to lift the inverter by setting up a pulley system, making the inverter easier to lift. The clamping components allow the pulley system to be easily fixed to various brackets, making installation and fixation convenient. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the clamping assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the fixed pulley or movable pulley of this utility model; Figure 5 This is a structural schematic diagram of the fixed pulley or movable pulley of this utility model from another perspective.
[0011] In the diagram: 1. Clamping base plate; 2. Plate; 3. Threaded tube; 4. Screw; 5. Clamping plate; 6. Pull rope; 7. U-shaped rod; 8. Connecting ring; 9. Connecting rod; 10. Side plate; 11. Rotating pulley; 12. Rope receiving rod; 13. Hook; 14. Anti-detachment plate; 15. Return spring. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Please see Figures 1 to 5 This utility model provides a technical solution: An inverter replacement hoisting fixture includes: The pulley system includes a fixed pulley and a movable pulley hooked on a connecting ring, and a pull rope 6 set on the fixed pulley and the movable pulley. Pulling the pull rope 6 causes the movable pulley to move.
[0014] The connecting ring includes a U-shaped rod 7, a connecting ring body 8, and a connecting rod 9. The connecting ring body 8 is mounted on the U-shaped rod 7 and is fixedly connected to the U-shaped rod 7 by welding or other means. There are two connecting ring bodies 8, located at both ends of the U-shaped rod 7. The connecting rod 9 is inserted into the connecting ring body 8 and passes through both connecting ring bodies 8. Baffles are provided at both ends of the connecting rod 9 to prevent the connecting rod 9 from detaching from the connecting ring body 8.
[0015] Both the fixed pulley and the movable pulley include a side plate 10, a rotating pulley 11, a rope connecting rod 12, a hook 13, an anti-detachment plate 14, and a return spring 15. There are two side plates 10. The rotating pulley 11 is located between the side plates 10 and is rotatably connected to the side plates 10 by means of a rotating shaft and bearings. The rope connecting rod 12 is also located between the side plates 10 and is fixedly connected to the side plates 10 by welding. The hook 13 is located on the side plate 10 and is fixedly connected to the side plate 10 by means of bolts or welding. The anti-detachment plate 14 is located on the hook 13 and is rotatably connected to the hook 13 by means of a rotating shaft. The return spring 15 is located between the hook 13 and the anti-detachment plate 14 and is sleeved on the rotating shaft of the anti-detachment plate 14. The return spring 15 is a torsion spring, and its two ends abut against the hook 13 and the anti-detachment plate 14 respectively, so that the anti-detachment plate 14 abuts against the hook 13.
[0016] The U-shaped rod 7 is sleeved on the clamping base plate 1, and the hook 13 corresponding to the fixed pulley is sleeved on the connecting rod 9.
[0017] One end of the pull rope 6 is connected to the rope receiving rod 12 of the fixed pulley and passes over the rotating pulley 11 of the movable pulley. After the movable pulley is placed on the pull rope, the pull rope is then placed back on the rotating pulley 11 of the fixed pulley. The pull rope 6 can be wound several times between the movable pulley and the fixed pulley according to the set weight of the inverter to be lifted, thereby reducing the lifting force.
[0018] The clamping assembly includes a clamping base plate 1, a mounting plate 2, a threaded tube 3, a screw 4, and a clamping plate 5. The mounting plate 2 is disposed at one end of the clamping base plate 1 and is fixedly connected to the clamping base plate 1 by welding or other means. The threaded tube 3 is disposed at the other end of the clamping base plate 1 and is fixedly connected to the clamping base plate 1 by welding or other means. The screw 4 is inserted into the threaded tube 3, and the threads on the screw 4 and the threads in the threaded tube 3 are engaged. When the screw 4 is rotated, the screw 4 will move along the threaded tube 3. The clamping plate 5 is disposed at the other end of the screw 4 and is fixedly connected to the screw 4 by welding or other means.
[0019] Working principle: When in use, after the U-shaped rod 7 is sleeved on the clamping base plate 1, the screw 4 is rotated so that the plate 2 and the clamping plate 5 fix the clamping base plate 1 on the clamping platform. The clamping platform can be a bracket on the inverter frame or a special hoisting frame. Then, the hook 13 of the movable pulley is connected to the inverter, and the pull rope 6 is pulled to move the movable pulley and lift the inverter.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An inverter replacement hoisting tool characterized by comprising: include: A pulley system, comprising a fixed pulley and a movable pulley hooked on a connecting ring, and a pull rope disposed on the fixed pulley and the movable pulley, wherein pulling the pull rope causes the movable pulley to move; The clamping assembly includes a clamping base plate, a plate disposed at one end of the clamping base plate, a threaded tube disposed at the other end of the clamping base plate, a screw inserted into the threaded tube, and a clamping plate disposed on the screw. When the connecting ring is sleeved on the clamping base plate, rotating the screw causes the plate and the clamping plate to fix the clamping base plate on the clamping platform.
2. The inverter replacement hoisting tool of claim 1, wherein: The connecting ring includes a U-shaped rod, a connecting ring body disposed on the U-shaped rod, and a connecting rod inserted into the connecting ring body.
3. The inverter replacement hoisting tool of claim 2, wherein: Both the fixed pulley and the movable pulley include symmetrically arranged side plates, a rotating pulley and a rope-receiving rod arranged between the side plates, a hook arranged on the side plate, an anti-detachment plate arranged on the hook, and a return spring arranged between the hook and the anti-detachment plate.
4. The inverter replacement hoisting tool of claim 3, wherein: The U-shaped rod is sleeved on the clamping base plate, and the hook corresponding to the fixed pulley is connected to the connecting rod.
5. The inverter replacement hoisting tool of claim 4, wherein: One end of the pull rope is connected to the rope receiving rod of the fixed pulley, and the other end passes through the rotating pulley of the movable pulley and rests on the rotating pulley of the fixed pulley.