Anti-unhooking circulating water plate filter screen hoisting tool

Abstract

The utility model discloses a kind of anti-unhooking circulating water plate type filter screen hoisting tools, including frame body and stem, rectangular groove is equipped in stem lower, cavity is equipped between frame body and stem, frame body top is equipped with hanging rod, hanging rod both sides are equipped with hoisting mechanism, the pull rod of hoisting mechanism is vertically equipped in frame body top, rectangular rod is equipped in rectangular groove, rectangular rod and rectangular groove are equipped with shaft connection between, rectangular rod bottom is equipped with hook, steel wire rope is equipped in cavity, steel wire rope is connected with pull rod and rectangular rod. Crane is connected with frame body, the bottom end of two stem is contacted with the top end of filter screen plate by controlling crane, pull steel wire rope on ground to control rectangular rod and hook rotation, make hook hang in the lifting lug at the top end of filter screen plate, hoist filter screen plate as a whole, do not need to be connected with lifting lug in filter screen plate top end by artificial entering circulating water forebay using lifting rope, avoid personnel to be caused to drown accident in maintenance process due to step empty, reduce maintenance cycle, improve maintenance efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting tool technology, specifically relating to a hoisting tool for a circulating water plate filter screen that prevents detachment. Background Technology

[0002] The circulating water forebay is an important structure in a circulating water system, typically located upstream of the cooling tower or circulating water pump. Its main function is to store the cooled circulating water and provide a stable water source for the circulating water pump.

[0003] The filter screen in the circulating water forebay is prone to clogging during unit operation, resulting in insufficient water pump output. It is necessary to lift the filter screen out for cleaning. However, due to the high water level in the forebay, the filter screen hook is submerged, making it impossible to hang the wire rope. It is necessary to manually enter and hang the wire rope on the lifting lug of the filter screen. However, manual entry to hang the rope is risky. During maintenance, personnel often have drowning accidents due to stepping into empty spaces, resulting in low maintenance efficiency and increased costs for the filter screen. Utility Model Content

[0004] The purpose of this invention is to provide a hoisting tool for circulating water plate filters that prevents detachment, in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hoisting tool for a circulating water plate filter screen with anti-detachment capability includes a frame and rods symmetrically arranged at the bottom of the frame. The lower part of each rod has a rectangular groove extending through both sides. A cavity is formed between the frame and the rods, with two open ends respectively located on the top surface of the frame and the side wall of the rod. A hanging rod is positioned at the center of the top surface of the frame, and hoisting mechanisms are symmetrically arranged on both sides of the hanging rod. Each hoisting mechanism includes a pull rod, a wire rope, a rectangular rod, a hook, and a pivot. The pull rod is vertically inserted into the top surface of the frame, and the rectangular rod is inserted into the rectangular groove. A pivot connects the insertion end of the rectangular rod to the side wall of the rectangular groove. A hook is positioned at the bottom of the exit end of the rectangular rod. The wire rope is inserted into the cavity, and both ends of the wire rope are connected to the pull rod and the exit end of the rectangular rod, respectively.

[0006] To further realize this utility model, metal ring I and metal ring II are respectively provided at both ends of the wire rope. Metal ring I is sleeved on the tie rod and fixedly connected, and metal ring II is inserted through the protruding end of the rectangular rod. The two ends of the wire rope are fixedly connected to the outer surfaces of the rectangular rod and the tie rod respectively by means of metal ring I and metal ring II.

[0007] To further realize this utility model, a coil spring is sleeved on the rotating shaft, one end of the coil spring is fixedly connected to the inner wall of the rectangular groove, and the other end is fixedly connected to the rotating shaft.

[0008] To further realize this utility model, the pull rod has a threaded structure, and a threaded ring is sleeved on the pull rod, with the threaded ring positioned below the metal ring I.

[0009] To further realize this utility model, symmetrical protrusions are provided on the outer periphery of the threaded ring. The protrusions facilitate hand gripping and leveraging to twist or push the threaded ring to control its movement on the outer surface of the pull rod.

[0010] To further realize this utility model, a rubber block is provided at the top of the pull rod.

[0011] To further realize this utility model, anti-wear rings are respectively provided in the opening on the top surface of the cavity and the opening on the side wall of the rod. The anti-wear rings prevent wear between the rod, frame and wire rope when the outer surface of the wire rope contacts the connection between the rod and the frame, thereby improving the service life of the hoisting structure.

[0012] To further realize this utility model, a washer is provided between the threaded ring and the top surface of the frame, and the washer is sleeved on the outer circumference of the pull rod. When the threaded ring is pressed down, the rubber washer presses the bottom end of the washer tightly against the top of the frame, making it more secure to the top of the frame. This prevents the threaded ring from accidentally sliding or rotating, and avoids the wire rope from loosening and causing the hook to come off.

[0013] To further realize this utility model, several support rods are provided between the hook and the rectangular rod. The support rods can support and reinforce the side of the hook near the rectangular rod, improve the structural strength of the hook's outer surface, and minimize the risk of surface breakage and deformation during hoisting after the hook is connected to the lifting lug.

[0014] To further realize this utility model, grooves are symmetrically provided on both sides of the rubber block. Holding the rubber block at the grooves on both sides of its bottom end makes it easier to pull the rubber block to control the movement of the lever and prevents the hand from slipping.

[0015] The advantages of this utility model compared to the prior art are as follows: When it is necessary to inspect and repair the filter screen inside the circulating water forebay, the crane is connected to the frame of this utility model. The crane is controlled to make the bottom ends of the two rods contact the top of the filter screen. The rectangular rod and hook are rotated by pulling the steel wire rope on the outside of the two rods on the ground, so that the hook is hooked at the lifting lug at the top of the filter screen, thereby lifting the filter screen as a whole. It is not necessary to manually enter the circulating water forebay to connect the lifting rope to the lifting lug at the top of the filter screen, avoiding drowning accidents caused by personnel stepping into the hole during the inspection process, reducing the inspection cycle and improving the inspection efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model (showing the cross-sectional layout of the rectangular rod). Figure 3 This is a schematic diagram of the rectangular rod, wire rope, hook, pivot, and coil spring in this utility model. Figure 4 This is a diagram showing the working state of this utility model.

[0017] The meanings of the reference numerals in the attached diagram are as follows: 1. Frame; 2. Rod; 3. Rectangular groove; 4. Cavity; 5. Hanging rod; 6. Pull rod; 7. Wire rope; 8. Rectangular rod; 9. Hook; 10. Shaft; 12. Metal ring I; 13. Metal ring II; 14. Coil spring; 15. Threaded ring; 16. Protruding rod; 17. Rubber block; 18. Anti-wear ring; 19. Washer ring; 20. Support rod; 21. Groove; 22. Filter screen plate; 23. Lifting lug. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1-4 As shown, a circulating water plate filter hoisting tool for preventing detachment includes a frame 1 and rods symmetrically arranged at the bottom of the frame 1. A rectangular groove 3 is provided on both sides of the lower part of the rod 2. A cavity 4 is provided between the frame 1 and the rods 2. The two open ends of the cavity 4 are respectively located on the top surface of the frame 1 and the side wall of the rod 2. Anti-wear rings are respectively provided in the opening of the cavity 4 on the top surface of the frame 1 and the opening of the cavity 4 on the side wall of the rod 2. 18. A hanging rod 5 is installed at the center of the top surface of the frame 1. A hoisting mechanism is symmetrically arranged on both sides of the hanging rod 5. The hoisting mechanism includes a tie rod 6, a wire rope 7, a rectangular rod 8, a hook 9, and a rotating shaft 10. The tie rod 6 is vertically inserted into the top surface of the frame 1. The rectangular rod 8 is inserted into the rectangular groove 3. The rotating shaft 10 is inserted between the inserted end of the rectangular rod 8 and the side wall of the rectangular groove 3. A coil spring 14 is sleeved on the rotating shaft 10. One end of the coil spring 14 is fixedly connected to the inner wall of the rectangular groove 3. The other end is fixedly connected to the rotating shaft 10. A hook 9 is provided at the bottom of the through end of the rectangular rod 8. The wire rope 7 is passed through the cavity 4. The two ends of the wire rope 7 are respectively passed through the anti-wear ring 18. Metal ring I 12 and metal ring II 13 are respectively provided at the two ends of the wire rope 7. Metal ring I 12 is sleeved on the pull rod 6 and fixedly connected. Metal ring II 13 is passed through the through end of the rectangular rod 8. The two ends of the wire rope 7 are respectively connected to the pull rod 6 and the through end of the rectangular rod 8. The pull rod 6 has a threaded structure. A threaded ring 15 is sleeved on the pull rod 6. The threaded ring 15 is located below the metal ring I 12. A washer 19 is provided between the threaded ring 15 and the top surface of the frame 1. The washer 19 is sleeved on the outer periphery of the pull rod 6. A protruding rod 16 is symmetrically provided on the outer periphery of the threaded ring 15. A rubber block 17 is provided at the top of the pull rod 6. Grooves 21 are symmetrically provided on both sides of the rubber block 17. Several support rods 20 are provided between the hook 9 and the rectangular rod 8.

[0020] When using this invention to lift the filter screen plate 22, the crane is controlled to hook the hanging rod 5, causing the frame 1 to descend. After the bottom ends of the two rods 2 contact the top end of the filter screen plate 22, the two pull rods 6 are pulled from the top of the frame 1, causing the steel wire rope 7 to move upward along the cavity 4 of the rods 2 and the frame 1 until the steel wire rope 7 can no longer be pulled. During the pulling process, the steel wire rope 7 pulls the through end of the rectangular rod 8, causing the through end of the rectangular rod 8 to rotate around the pivot 10, causing the coil spring 14 to deform. The rectangular rod 8 causes the hook 9 to rotate upward, inserting the hook 9 into the lifting lug 23 at the top of the filter screen plate 22 and hooking it in place. After the filter screen plate 22 is stably connected to the hook 9, the protruding rod 16 is held and the threaded ring 15 is rotated to move it downward along the thread on the outer surface of the pull rod 6. Move until the bottom surface of the threaded ring 15 is pressed tightly against the top surface of the frame 1, thereby restricting the position of the tie rod 6 on the frame 1. Start the control crane to lift the frame 1. Use the two hooks 9 to cooperate with the lifting lugs 23 at the top of the filter screen plate 22 to lift the filter screen plate 22. After the maintenance is completed, put the filter screen plate 22 into the circulating water fore-pool. After the filter screen plate 22 is installed, rotate the threaded ring 15 at the two tie rods 6 to move the threaded ring 15 away from the top surface of the frame 1. As the hooks 9 are released, the coil spring 14 gradually returns to its original state. The rectangular rod 8 and the hooks 9 rotate out from the lifting lugs 23. At the same time, the tie rod 6 will slide towards the inner wall of the frame 1 under the pull of the wire rope 7. Then operate the control crane to lift the frame 1 away from the inside of the circulating water fore-pool.

Claims

1. A hoisting tool for a circulating water plate filter screen that prevents detachment, characterized in that: The system includes a frame (1) and symmetrically arranged poles (2) at the bottom of the frame (1). The lower part of the poles (2) is provided with rectangular grooves (3) that pass through both sides. A cavity (4) is provided between the frame (1) and the poles (2). The two open ends of the cavity (4) are respectively opened on the top surface of the frame (1) and the side wall of the poles (2). A hanging rod (5) is provided in the center of the top surface of the frame (1). A hoisting mechanism is symmetrically arranged on both sides of the hanging rod (5). The hoisting mechanism includes a tie rod (6) and a wire rope (7). The frame consists of a rectangular rod (8), a hook (9), and a pivot (10). The pull rod (6) is vertically inserted into the top surface of the frame (1). The rectangular rod (8) is inserted into the rectangular groove (3). The pivot (10) is inserted between the insertion end of the rectangular rod (8) and the side wall of the rectangular groove (3). The bottom of the insertion end of the rectangular rod (8) is provided with a hook (9). The wire rope (7) is inserted into the cavity (4). The two ends of the wire rope (7) are connected to the pull rod (6) and the insertion end of the rectangular rod (8), respectively.

2. The anti-disengagement circulating water plate filter hoisting tool as described in claim 1, characterized in that: The two ends of the wire rope (7) are respectively provided with metal ring I (12) and metal ring II (13). Metal ring I (12) is sleeved on the pull rod (6) and fixedly connected, and metal ring II (13) is inserted through the end of the rectangular rod (8).

3. The anti-disengagement circulating water plate filter hoisting tool as described in claim 1 or 2, characterized in that: A coil spring (14) is fitted on the rotating shaft (10). One end of the coil spring (14) is fixedly connected to the inner wall of the rectangular groove (3), and the other end is fixedly connected to the rotating shaft (10).

4. The anti-disengagement circulating water plate filter hoisting tool as described in claim 3, characterized in that: The pull rod (6) has a threaded structure, and a threaded ring (15) is fitted on the pull rod (6). The threaded ring (15) is located below the metal ring I (12).

5. The anti-disengagement circulating water plate filter hoisting tool as described in claim 4, characterized in that: The outer periphery of the threaded ring (15) is symmetrically provided with protrusions (16).

6. The anti-disengagement circulating water plate filter hoisting tool as described in claim 5, characterized in that: A rubber block (17) is provided on the top of the pull rod (6).

7. The anti-disengagement circulating water plate filter hoisting tool as described in claim 6, characterized in that: Anti-wear rings (18) are respectively provided in the opening on the top surface of the cavity (4) and the opening on the side wall of the rod (2).

8. The anti-disengagement circulating water plate filter hoisting tool as described in claim 7, characterized in that: A washer (19) is provided between the threaded ring (15) and the top surface of the frame (1), and the washer (19) is sleeved on the outer periphery of the tie rod (6).

9. The anti-disengagement circulating water plate filter hoisting tool as described in claim 8, characterized in that: Several support rods (20) are provided between the hook (9) and the rectangular rod (8).

10. The anti-disengagement circulating water plate filter hoisting tool as described in claim 9, characterized in that: The rubber block (17) has grooves (21) symmetrically arranged on both sides.

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