Climbing and anti-falling device for tower crane

Abstract

The utility model discloses a kind of climbing anti-falling devices for tower crane hoist, belong to the technical field of anti-falling device, including anti-falling device main part, the threading groove is equipped in anti-falling device main part, further including adjusting device, the adjusting device is installed in threading groove inner wall one side, the adjusting device includes adjusting groove, the adjusting groove is opened in threading groove inner wall one side, adjusting block is slidably connected in the adjusting groove, screw hole is opened in the one side of adjusting block, and adjusting groove inner wall one side is opened with through-hole, and the through-hole inner wall is rotatably connected with adjusting rod;In the utility model, by setting adjusting device, by rotating knob, so that knob drives adjusting rod to rotate, so that the thread groove of adjusting rod outer wall rotates in the screw hole in adjusting block, further makes the thread groove drive adjusting block to move, so that adjusting block adjusts the space in threading groove, further makes threading groove satisfy the use demand of different size rope, to improve the device application range.

Description

Technical Field

[0001] This utility model belongs to the field of fall arrestor technology, and in particular relates to a climbing fall arrestor for tower cranes. Background Technology

[0002] Climbing fall arrestors are individual fall protection devices designed specifically for workers working at heights. They are mainly used in the power, petroleum, communications, shipbuilding, and construction industries to prevent workers from falling during climbing. Their core function is to automatically lock in the event of an accidental fall to ensure safety.

[0003] Chinese utility model application No. 202023105493.5 discloses a fall arrestor, including a first base and a second base that are connected and detachable, with a locking structure between them; a first track groove is provided on the inner side of the first base, and a second track groove is provided on the inner side of the second base, with the two sides of the lifeline track falling into the first track groove and the second track groove respectively; an inclined locking groove with an open upper end and a closed lower end is provided in the first base, and a locking component is provided in the inclined locking groove. The locking component includes a locking wedge that disengages from the inclined locking groove by inertia when the fall arrestor falls, and the disengaged locking wedge is embedded in the wedge between the fall arrestor and the lifeline track to achieve locking. However, in actual use, because the inner diameter of the cable threading hole inside the fall arrestor is fixed, different fall arrestors need to be replaced when using different sizes of ropes, resulting in a limited range of application for this device. Utility Model Content

[0004] The purpose of this utility model is to provide a climbing fall arrest device for tower cranes in order to solve the problem of the limited applicability of traditional fall arresters.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a climbing and falling prevention device for tower cranes, comprising a fall prevention device body, wherein a wire groove is provided inside the fall prevention device body, and further comprising an adjustment device, wherein the adjustment device is installed on one side of the inner wall of the wire groove; The adjusting device includes an adjusting groove, which is located on one side of the inner wall of the wire-passing groove. An adjusting block is slidably connected in the adjusting groove. A threaded hole is provided on one side of the adjusting block, and a through hole is provided on one side of the inner wall of the adjusting groove. An adjusting rod is rotatably connected to the inner wall of the through hole. A threaded groove is provided on the outer wall of the adjusting rod, and the outer wall of the threaded groove is threadedly connected to the inner wall of the threaded hole. The position of the adjusting block is adjusted by rotating the adjusting rod.

[0006] As a further description of the above technical solution: The adjusting block has two sliding grooves, which are located on both sides of the threaded hole. The sliding grooves are slidably connected to sliding rods, one end of which is connected to one side of the inner wall of the adjusting groove.

[0007] As a further description of the above technical solution: The adjusting block has a side groove on one side, and a bracket is slidably connected to the inner wall of the side groove. A roller is rotatably connected inside the bracket, and two first springs are connected to the other side of the bracket. The other end of the first spring is connected to one side of the inner wall of the side groove.

[0008] As a further description of the above technical solution: Two fixing grooves are provided on one side of the inner wall of the side groove, and a fixing rod is slidably connected in the fixing groove. The other end of the fixing rod is connected to one side of the bracket, and the first spring is sleeved on the outside of the fixing rod.

[0009] As a further description of the above technical solution: The fall arrestor body is equipped with a protective device, which includes a movable groove. The movable groove is opened on one side of the fall arrestor body. A protective plate is slidably connected in the movable groove. Two second springs are connected to one side of the protective plate. The other end of the second spring is connected to one side of the inner wall of the movable groove.

[0010] As a further description of the above technical solution: A toggle groove is provided on one side of the inner wall of the movable groove, and a toggle block is slidably connected in the toggle groove. One side of the toggle block is connected to one side of the protective plate.

[0011] As a further description of the above technical solution: The protective plate has a support groove, and a support rod is slidably connected in the support groove. The other end of the support rod is connected to one side of the inner wall of the movable groove, and a second spring is sleeved on the outside of the support rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, by setting an adjustment device, by rotating the knob, the knob drives the adjustment rod to rotate, thereby causing the threaded groove on the outer wall of the adjustment rod to rotate in the threaded hole in the adjustment block, and then the threaded groove drives the adjustment block to move, so that the adjustment block adjusts the space in the threading groove, thereby making the threading groove meet the usage requirements of ropes of different sizes, thereby improving the applicability of the device.

[0013] 2. In this utility model, by setting up a protective device, by moving the lever, the lever moves the protective plate, which in turn squeezes the second spring, and then the main body of the fall arrester is locked onto the surface of the rope. Then the lever is released, and the protective plate is reset by the rebound of the second spring to protect the side of the cable groove, so as to prevent the main body of the fall arrester from slipping when moving and affecting the safety of use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a climbing and fall prevention device for tower cranes proposed in this utility model; Figure 2 This is a schematic diagram of the adjustment device structure of a climbing and fall prevention device for tower cranes proposed in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the adjusting block of a climbing anti-fall device for tower cranes proposed in this utility model; Figure 4 This is a schematic diagram of the protective device structure of a climbing anti-fall device for tower cranes proposed in this utility model.

[0015] Legend: 1. Fall arrestor body; 2. Threading groove; 3. Adjustment device; 301. Adjusting rod; 302. Threaded groove; 303. Sliding rod; 304. Adjusting groove; 305. Through hole; 306. Adjusting block; 307. Side groove; 308. Fixing groove; 309. Threaded hole; 310. Bracket; 311. Roller; 312. Fixing rod; 313. First spring; 314. Sliding groove; 4. Protective device; 401. Support rod; 402. Second spring; 403. Toggle block; 404. Protective plate; 405. Toggle groove; 406. Movable groove. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4This utility model provides a technical solution: a climbing fall prevention device for tower cranes, including a fall prevention device body 1, a wire groove 2 inside the fall prevention device body 1, and an adjustment device 3 installed on one side of the inner wall of the wire groove 2. The adjustment device 3 includes an adjustment groove 304, which is opened on one side of the inner wall of the wire groove 2. An adjustment block 306 is slidably connected in the adjustment groove 304. A threaded hole 309 is opened on one side of the adjustment block 306, and a through hole 305 is opened on one side of the inner wall of the adjustment groove 304. An adjustment rod 301 is rotatably connected to the inner wall of the through hole 305. A threaded groove 302 is opened on the outer wall of the adjustment rod 301, and the outer wall of the threaded groove 302 is threadedly connected to the inner wall of the threaded hole 309. The position of the adjustment block 306 is adjusted by rotating the adjustment rod 301. Two sliding grooves 314 are provided in the block 306, and the two sliding grooves 314 are located on both sides of the threaded hole 309. A sliding rod 303 is slidably connected to the sliding groove 314. One end of the sliding rod 303 is connected to one side of the inner wall of the adjusting groove 304. A side groove 307 is provided on one side of the adjusting block 306. A bracket 310 is slidably connected to the inner wall of the side groove 307. A roller 311 is rotatably connected in the bracket 310. Two first springs 313 are connected to the other side of the bracket 310. The other end of the first spring 313 is connected to one side of the inner wall of the side groove 307. Two fixing grooves 308 are provided on one side of the inner wall of the side groove 307. A fixing rod 312 is slidably connected in the fixing groove 308. The other end of the fixing rod 312 is connected to one side of the bracket 310. The first spring 313 is sleeved on the outside of the fixing rod 312.

[0018] In a specific implementation, by setting an adjustment device 3, rotating a knob causes the adjustment rod 301 to rotate, thereby causing the adjustment rod 301 to rotate within the threaded hole 309. This causes the threaded groove 302 on the outer wall of the adjustment block 306 to move within the threaded hole 309, thus moving the adjustment block 306. The adjustment block 306 then moves within the cable threading groove 2, adjusting the space within the groove. This allows the cable threading groove 2 to accommodate ropes of different sizes, enabling the fall arrestor body 1 to achieve automatic locking during a fall using the eccentric cam braking principle. Its core structure includes a braking gear and a safety rope slide. When the human body moves upward, the braking gear does not rotate. When falling downward, the eccentric cam will drive the locking mechanism to quickly lock the safety rope and prevent further fall. This technology is existing technology and does not need to be described in detail. By setting rollers 311, when the fall arrestor body 1 moves upward, the elasticity of the first spring 313 causes the first spring 313 to drive the rollers 311 to move outward through the bracket 310 and to fit against the rope surface. By rolling the rollers 311 on the rope surface, the friction of the fall arrestor body 1 when moving upward is reduced, which facilitates the movement of the fall arrestor body 1.

[0019] The main body 1 of the fall arrester is equipped with a protective device 4. The protective device 4 includes a movable groove 406, which is located on one side of the main body 1 of the fall arrester. A protective plate 404 is slidably connected in the movable groove 406. Two second springs 402 are connected to one side of the protective plate 404. The other end of the second springs 402 is connected to one side of the inner wall of the movable groove 406. A toggle groove 405 is provided on one side of the inner wall of the movable groove 406. A toggle block 403 is slidably connected in the toggle groove 405. One side of the toggle block 403 is connected to one side of the protective plate 404. A support groove is provided in the protective plate 404. A support rod 401 is slidably connected in the support groove. The other end of the support rod 401 is connected to one side of the inner wall of the movable groove 406. The second springs 402 are sleeved on the outside of the support rod 401.

[0020] In a specific implementation, by setting up a protective device 4, by moving the toggle block 403, the toggle block 403 drives the protective plate 404 to move, causing the protective plate 404 to slide in the movable groove 406 and squeeze the second spring 402, causing the second spring 402 to generate a rebound force. The support rod 401 supports the second spring 402 to prevent the second spring 402 from bending during compression and affecting its rebound effect. Then, the fall arrestor body 1 is clamped onto the rope surface. After the clamping is completed, the toggle block 403 is released, allowing the protective plate 404 to reset due to the rebound of the second spring 402, so that the protective plate 404 extends out to cover the side of the cable groove 2 for protection, preventing the fall arrestor body 1 from slipping during movement and affecting the safety of use.

[0021] Working principle: In use, by rotating the knob, the knob drives the adjusting rod 301 to rotate, causing the threaded groove 302 on the outer wall of the adjusting rod 301 to rotate within the threaded hole 309. Through threaded transmission, the adjusting block 306 moves, adjusting the space within the cable groove 2. This allows the fall arrestor body 1 to adjust the clamping space according to the rope size, thus meeting the needs of ropes of different sizes. Then, by moving the lever 403, the lever 403 moves the protective plate 404 to one side, causing the protective plate 404 to compress the second spring 402, generating a rebound force. The fall arrestor body 1 is then installed on the rope surface. After releasing the lever 403, the protective plate 404 is reset by the rebound force of the second spring 402, thus protecting the rope installation position and preventing the fall arrestor body 1 from slipping and affecting its use when moving upwards.

[0022] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A climbing fall arrestor for tower cranes, comprising a fall arrestor body (1), wherein the fall arrestor body (1) is provided with a wire groove (2), characterized in that, Also includes: Adjustment device (3), the adjustment device (3) is installed on one side of the inner wall of the wire groove (2); The adjusting device (3) includes an adjusting groove (304), which is located on one side of the inner wall of the wire groove (2). An adjusting block (306) is slidably connected in the adjusting groove (304). A threaded hole (309) is provided on one side of the adjusting block (306), and a through hole (305) is provided on one side of the inner wall of the adjusting groove (304). An adjusting rod (301) is rotatably connected to the inner wall of the through hole (305). A threaded groove (302) is provided on the outer wall of the adjusting rod (301). The outer wall of the threaded groove (302) is threadedly connected to the inner wall of the threaded hole (309). The position of the adjusting block (306) is adjusted by rotating the adjusting rod (301).

2. The climbing and fall prevention device for tower cranes according to claim 1, characterized in that, The adjusting block (306) has two sliding grooves (314) inside, and the two sliding grooves (314) are located on both sides of the threaded hole (309), and the sliding grooves (314) are slidably connected to a sliding rod (303), one end of the sliding rod (303) being connected to one side of the inner wall of the adjusting groove (304).

3. The climbing and fall prevention device for tower cranes according to claim 1, characterized in that, The adjusting block (306) has a side groove (307) on one side. A bracket (310) is slidably connected to the inner wall of the side groove (307). A roller (311) is rotatably connected inside the bracket (310). Two first springs (313) are connected to the other side of the bracket (310). The other end of the first spring (313) is connected to one side of the inner wall of the side groove (307).

4. A climbing and fall prevention device for tower cranes according to claim 3, characterized in that, Two fixing grooves (308) are provided on one side of the inner wall of the side groove (307), and a fixing rod (312) is slidably connected in the fixing groove (308). The other end of the fixing rod (312) is connected to one side of the bracket (310), and the first spring (313) is sleeved on the outside of the fixing rod (312).

5. A climbing and fall prevention device for tower cranes according to claim 1, characterized in that, The main body (1) of the fall arrester is provided with a protective device (4). The protective device (4) includes a movable groove (406). The movable groove (406) is opened on one side of the main body (1) of the fall arrester. A protective plate (404) is slidably connected in the movable groove (406). Two second springs (402) are connected to one side of the protective plate (404). The other end of the second spring (402) is connected to one side of the inner wall of the movable groove (406).

6. A climbing and fall prevention device for tower cranes according to claim 5, characterized in that, A toggle groove (405) is provided on one side of the inner wall of the movable groove (406), and a toggle block (403) is slidably connected in the toggle groove (405). One side of the toggle block (403) is connected to one side of the protective plate (404).

7. A climbing and fall prevention device for tower cranes according to claim 5, characterized in that, The protective plate (404) has a support groove, and a support rod (401) is slidably connected in the support groove. The other end of the support rod (401) is connected to one side of the inner wall of the movable groove (406), and the second spring (402) is sleeved on the outside of the support rod (401).

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