Overhaul lifting appliance for iron tower maintenance

Abstract

The utility model relates to the technical field of iron tower maintenance, and discloses a maintenance lifting appliance for iron tower maintenance, which comprises a lifting box, lifting rings for hanging lifting ropes are fixedly arranged at four corners of the top of the lifting box, a door body is hinged at the hollow part of the front surface of the lifting box, and a handle is fixedly arranged on the side of the door body. Protective straps hooped on the waist of a maintainer are arranged in the hanging box, curved steel wire ropes are fixedly mounted between the opposite sides of the protective straps and the inner walls of the two sides of the hanging box, and auxiliary protective assemblies are arranged at the ends of the protective straps; the waist of a maintainer can be conveniently hooped by opening the first strap and the second strap, the first strap and the second strap are fastened and connected by screwing the fastening bolt, the protective strap can be stably hooped at the waist of the maintainer, and the protective effect can be achieved by using the telescopic spring-shaped bent steel wire rope as a safety rope for connection. And maintenance personnel can walk freely and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of iron tower maintenance, in particular to a maintenance hoisting device used for iron tower maintenance. Background Art

[0002] Power towers are a very important component of the power system. The towers bear the transmission task of high-voltage lines. However, since the towers are built outdoors, they will be affected by many natural factors, which will cause various problems in the power towers, and thus the power towers need to be maintained and repaired in a timely and effective manner.

[0003] For example, a hanger for high-altitude maintenance of iron towers disclosed in the Chinese patent with publication number CN218290378U includes a hanger body and an upper lifting ring, a front fixing plate is fixedly installed on the front side of the hanger body, a front connecting frame is fixedly installed on the surface of the front fixing plate, a rotating groove is provided on the side of the front connecting frame, a clamping plate is rotatably connected inside the rotating groove, and the two clamping plates rotate in opposite directions. The hanger for high-altitude maintenance of iron towers described in the utility model makes two worms rotate in opposite directions, and the worms mesh with the transmission turbine at the upper end of the connecting shaft to drive the whole rotation composed of the transmission turbine, the connecting shaft and the clamping plate, thereby driving the two clamping plates to rotate in opposite directions, so that the two clamping plates are clamped on the tower body, and the turbine worm transmission has a reverse self-locking characteristic, so that the two clamping plates are fixed on the tower body, so as to avoid the hanger body from swinging back and forth due to the sudden strong wind during maintenance, which affects the health and safety of the personnel inside the hanger body.

[0004] In the process of implementing this application, the inventor discovered that there are at least the following problems in this technology: Although the above technical solution can prevent the hanger from swinging back and forth due to wind during maintenance, the maintenance personnel inside the hanger have no protection measures. When they are hoisted to a high altitude to perform maintenance and repairs on the tower, there are still certain safety hazards. Therefore, further improvements can be made. Utility Model Content

[0005] In order to solve the above-mentioned problems, the utility model provides the following technical solutions: a maintenance hoist for tower maintenance, comprising a hoisting box, wherein the four corners of the top of the hoisting box are fixedly installed with hoisting rings for hanging hoisting ropes, a door body is hinged at the hollow front part of the hoisting box, and handles are fixedly installed on the sides of the door body, and the interior of the hoisting box is provided with a protective hoop for hooping the waist of the maintenance personnel, and bent steel wire ropes are fixedly installed between the opposite side of the protective hoop and the inner walls of the two sides of the hoisting box, and auxiliary protection components are provided at the ends of the protective hoop.

[0006] As an optimization, the protective strap includes a first strap and a second strap with two ends hinged together, the other ends of the first strap and the second strap are provided with holes, fastening bolts are inserted into the holes, and the other ends of the fastening bolts are screwed with nuts, and the other ends of the first strap and the second strap can be fastened and connected together by screwing the nut and the fastening bolt, so that the protective strap can be stably clamped around the waist of the maintenance personnel.

[0007] As an optimization, the curved steel wire rope is in the shape of a spiral spring, and its ends are respectively fixedly mounted on the middle of the outer sides of the first hoop and the second hoop. The curved steel wire rope serves as a safety rope for the maintenance personnel located between the first hoop and the second hoop, and its spiral spring-shaped design allows the maintenance personnel to move freely without restriction.

[0008] As an optimization, the auxiliary protection component includes a straight steel wire rope fixedly installed at the ends of the first hoop and the second hoop, a buckle frame is fixedly installed at the end of the straight steel wire rope away from the first hoop, a bracket is fixedly installed on the top of the buckle frame, a gear is rotatably connected to the top of the buckle frame and located in the bracket, a rotating rod passing through the top wall of the bracket is fixedly installed in the center of the gear, and a locking part that can slide and retract into the buckle frame is provided on the outside of the buckle frame.

[0009] As an optimization, the locking part includes a U-shaped buckle frame, and the two sides of the buckle frame are of different lengths. The long side is hollow inside and slidably connected in the bracket, and a rack plate is fixedly installed on the inner wall of one side of the hollow long side. The rack plate is meshingly connected with the gear, and the short side is slidably inserted in the slide groove. The gear is driven to rotate by rotating the rotating rod, and then the short side of the buckle frame is driven by the rack plate to be inserted into the buckle frame, so that it will be stuck on the angle steel beam of the iron tower.

[0010] As an optimization, dovetail bars are fixedly installed on both sides of the short side of the buckle frame corresponding to the two sides of the slide groove, and the dovetail bars slide along the two sides of the slide groove to improve stability.

[0011] As an optimization, a fixing seat is fixedly installed on the top of the buckle frame, and the internal thread of the fixing seat is connected to a screw rod. The end of the screw rod close to the gear is rotatably connected to a clamping block, and the clamping block slides and abuts against the top side of the buckle frame. The screw rod is rotated in the fixing seat by twisting, and the clamping block is driven along the top side of the buckle frame close to the gear, so that the clamping block is stuck on the outside of the gear, which plays a limiting role and further improves stability.

[0012] The beneficial effects of the utility model are:

[0013] 1. The maintenance hoist used for tower maintenance can be conveniently hooped around the waist by breaking open the first hoop and the second hoop, and then the fastening bolts are turned to fasten the first hoop and the second hoop, so that the protective hoop can be stably hooped around the waist of the maintenance personnel, and then the retractable spring-shaped curved steel wire rope is used as a safety rope to connect, which can play a protective role and is convenient for the maintenance personnel to move around freely.

[0014] 2. The inspection and maintenance hoist used for tower maintenance will drive the gear by rotating the rotating rod, and then drive the long side of the buckle frame to slide through the rack plate meshing with the gear, so the short side of the buckle frame will be pushed into the buckle frame and buckled on the outside of the angle steel. At the same time, turning the screw will make the block slide close to the gear, and then drive the block to be stuck on the outside of the gear, so it will play a limiting role to limit the rotation of the gear. At this time, the straight steel wire rope can be used as a backup safety rope to further protect the safety personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the protective hoop of the utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary protection structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the explosion of the auxiliary protection structure of the utility model.

[0019] In the figure: 1. hanging box; 2. lifting ring; 3. door body; 4. handle; 5. protective hoop; 6. bent wire rope; 7. auxiliary protection component; 8. first hoop; 9. second hoop; 10. fastening bolt; 11. straight wire rope; 12. buckle frame; 13. bracket; 14. slide groove; 15. gear; 16. rotating rod; 17. buckle frame; 18. rack plate; 19. dovetail bar; 20. fixing seat; 21. screw; 22. block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2A maintenance hoist for tower maintenance, comprising a hoisting box 1, wherein the four corners of the top of the hoisting box 1 are fixedly provided with hoisting rings 2 for hanging hoisting ropes, a door body 3 is hingedly connected to the front hollow of the hoisting box 1, and a handle 4 is fixedly provided on the side of the door body 3, and a protective hoop 5 is provided inside the hoisting box 1 to be clamped around the waist of the maintenance personnel, and a curved steel wire rope 6 is fixedly provided between the opposite side of the protective hoop 5 and the inner walls of both sides of the hoisting box 1, and an auxiliary protection component 7 is provided at the end of the protective hoop 5;

[0022] See also Figure 1-2 The protective band 5 includes a first band 8 and a second band 9 with two ends hinged together. The other ends of the first band 8 and the second band 9 are provided with holes, in which fastening bolts 10 are inserted. The other ends of the fastening bolts 10 are provided with nuts for screwing. By screwing the nuts and the fastening bolts 10, the other ends of the first band 8 and the second band 9 are fastened and connected together, so that the protective band 5 can be stably clamped around the waist of the maintenance personnel.

[0023] See also Figure 1-2 The bent steel wire rope 6 is in the shape of a spiral spring, and its ends are fixedly mounted on the middle of the outer sides of the first hoop 8 and the second hoop 9 respectively. The bent steel wire rope 6 serves as a safety rope for the maintenance personnel between the first hoop 8 and the second hoop 9, and its spiral spring-shaped design allows the maintenance personnel to move freely without restriction.

[0024] See also Figure 3-4 The auxiliary protection component 7 includes a straight steel wire rope 11 fixedly mounted at the ends of the first hoop 8 and the second hoop 9, a buckle frame 12 is fixedly mounted at one end of the straight steel wire rope 11 away from the first hoop 8, a bracket 13 is fixedly mounted on the top of the buckle frame 12, a gear 15 is rotatably connected to the top of the buckle frame 12 and located in the bracket 13, a rotating rod 16 penetrating the top wall of the bracket 13 is fixedly mounted at the center of the gear 15, and a locking member that can slide and retract into the buckle frame 12 is provided on the outer side of the buckle frame 12;

[0025] See also Figure 3-4 The lock fastener includes a U-shaped buckle frame 17, and the two sides of the buckle frame 17 are of different lengths. The long side is hollow inside and slidably connected in the bracket 13. A rack plate 18 is fixedly installed on the inner wall of one side of the hollow long side. The rack plate 18 is meshed and connected with the gear 15. The short side is slidably inserted in the slide groove 14. The gear 15 is driven to rotate by rotating the rotating rod 16, and then the short side of the buckle frame 17 is driven to be inserted into the buckle frame 12 through the rack plate 18, so that it will be stuck on the angle steel beam of the iron tower; dovetail strips 19 are fixedly installed on both sides of the short side of the buckle frame 17 corresponding to the two sides of the slide groove 14, and the dovetail strips 19 slide along the two sides of the slide groove 14 to improve stability;

[0026] See also Figure 3-4A fixing seat 20 is fixedly installed on the top of the buckle frame 12, and a screw 21 is connected to the internal thread of the fixing seat 20. A block 22 is rotatably connected to the end of the screw 21 close to the gear 15. The block 22 slides against the top side of the buckle frame 12. By twisting the screw 21 and rotating it in the fixing seat 20, the block 22 is driven to approach the gear 15 along the top side of the buckle frame 12, so that the block 22 is stuck on the outside of the gear 15, which plays a limiting role and further improves stability.

[0027] When in use, first open the door body 3 through the handle 4, then enter the hanging box 1, then open the first hoop 8 and the second hoop 9 and hoop around the waist, then turn the fastening bolt 10 to connect and fix the first hoop 8 and the second hoop 9 together, then the curved steel wire rope 6 as a safety rope can be used to protect the maintenance personnel, and because the curved steel wire rope 6 is in the shape of a stretchable spring, it is convenient for the maintenance personnel to move around freely during maintenance and inspection;

[0028] At the same time, the buckle frame 12 is buckled onto the angle steel beam of the iron tower, and then the rotating rod 16 is rotated to drive the gear 15 to rotate, and then the long side of the buckle frame 17 is driven to slide through the rack plate 18 meshing with the gear 15, so the short side of the buckle frame 17 will be inserted into the buckle frame 12 and buckled on the outside of the angle steel, and then the screw 21 in the fixed seat 20 is rotated to drive the clamping block 22 to slide along the top side of the buckle frame 12 close to the gear 15, and then it will be stuck in the clamping teeth of the gear 15, so it will play a limiting role to limit the rotation of the gear 15, thereby improving the stability. At this time, it can be used as a spare safety rope to protect the maintenance personnel.

[0029] To summarize, the maintenance hoist used for tower maintenance can be conveniently hooped around the waist by prying apart the first hoop 8 and the second hoop 9, and then the fastening bolts 10 are tightened to connect the first hoop 8 and the second hoop 9, so that the protective hoop 5 can be stably hooped around the waist of the maintenance personnel, and then connected by the retractable spring-shaped curved steel wire rope 6 as a safety rope, which can play a protective role and is convenient for the maintenance personnel to move around freely.

[0030] By rotating the rotating rod 16, the gear 15 will be driven, and then the long side of the buckle frame 17 will be driven to slide through the rack plate 18 meshing with the gear 15, so the short side of the buckle frame 17 will be pushed into the buckle frame 12 and buckled on the outside of the angle steel. At the same time, turning the screw rod 21 will make the block 22 slide close to the gear 15, and then drive the block 22 to be stuck on the outside of the gear 15, so it will play a limiting role to limit the rotation of the gear 15. At this time, the straight steel wire rope 11 can be used as a backup safety rope to further protect the safety personnel.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The standard parts used in the utility model can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0033] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A maintenance hoist for iron tower maintenance, comprising a hoisting box (1), characterized in that: The four corners of the top of the hanging box (1) are fixedly provided with lifting rings (2) for hanging lifting ropes, the front hollow part of the hanging box (1) is hinged with a door body (3), the side of the door body (3) is fixedly provided with a handle (4), the interior of the hanging box (1) is provided with a protective hoop (5) for circumscribing the waist of the maintenance personnel, and a bent steel wire rope (6) is fixedly provided between the opposite side of the protective hoop (5) and the inner walls of both sides of the hanging box (1), and the end of the protective hoop (5) is provided with an auxiliary protection component (7).

2. The maintenance hanger for tower maintenance according to claim 1, characterized in that: The protective strap (5) comprises a first strap (8) and a second strap (9) whose two ends are hinged together, the other ends of the first strap (8) and the second strap (9) are provided with holes, in which fastening bolts (10) are inserted, and the other ends of the fastening bolts (10) are screwed with nuts.

3. The maintenance hanger for tower maintenance according to claim 2 is characterized in that: The curved steel wire rope (6) is in the shape of a spiral spring, and its ends are respectively fixedly mounted on the middle of the outer sides of the first hoop (8) and the second hoop (9).

4. The maintenance hanger for tower maintenance according to claim 1, characterized in that: The auxiliary protection component (7) comprises a straight steel wire rope (11) fixedly mounted on the ends of the first hoop (8) and the second hoop (9); a buckle frame (12) is fixedly mounted on the end of the straight steel wire rope (11) away from the first hoop (8); a bracket (13) is fixedly mounted on the top of the buckle frame (12); a gear (15) is rotatably connected to the top of the buckle frame (12) and located inside the bracket (13); a rotating rod (16) penetrating the top wall of the bracket (13) is fixedly mounted at the center of the gear (15); and a locking member that can slide and retract into the buckle frame (12) is provided on the outer side of the buckle frame (12).

5. The maintenance hanger for tower maintenance according to claim 4, characterized in that: The locking member comprises a U-shaped buckle frame (17), and the two sides of the buckle frame (17) are of different lengths, the long side is hollow inside and is slidably connected in the bracket (13), a rack plate (18) is fixedly installed on the inner wall of one side of the hollow long side, the rack plate (18) is meshedly connected with the gear (15), and the short side is slidably inserted in the slide groove (14).

6. The maintenance hanger for tower maintenance according to claim 5, characterized in that: Dovetail strips (19) are fixedly mounted on both sides of the short side of the buckle frame (17) corresponding to both sides of the slide groove (14).

7. The maintenance hanger for tower maintenance according to any one of claims 4 to 6, characterized in that: A fixing seat (20) is fixedly mounted on the top of the buckle frame (12); a screw rod (21) is internally threadedly connected to the fixing seat (20); a clamping block (22) is rotatably connected to one end of the screw rod (21) close to the gear (15); and the clamping block (22) is slidably abutted against the top side of the buckle frame (12).

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