CN219539292U - Anti-falling device for safety rope of tower crane cat ladder - Google Patents
Anti-falling device for safety rope of tower crane cat ladder Download PDFInfo
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- CN219539292U CN219539292U CN202320537682.4U CN202320537682U CN219539292U CN 219539292 U CN219539292 U CN 219539292U CN 202320537682 U CN202320537682 U CN 202320537682U CN 219539292 U CN219539292 U CN 219539292U
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Abstract
The utility model provides an anti-falling device for a safety rope of a tower crane crawling ladder, which comprises a safety anti-falling base shell and a safety anti-falling self-locking structure, wherein the safety anti-falling base shell and the safety anti-falling self-locking structure are integrally and fixedly installed together, the safety anti-falling self-locking structure is fixedly installed inside the safety anti-falling base shell, and the safety anti-falling base shell is fixedly hung on the tower crane crawling ladder. The self-locking safety rope of the safety anti-falling self-locking structure is small in contact area with the safety rope, small in abrasion coefficient and capable of guaranteeing the roughness of the surface of the safety rope for a long time conveniently, and secondly, the self-locking safety rope of the safety anti-falling self-locking structure is locked by the self-locking safety anti-falling self-locking structure instead of being clamped, so that the safety rope resists the downward pulling force generated by falling of subsequent workers through the friction force generated by winding turns of the self-locking safety anti-falling self-locking safety rope, and the whole mode bears the downward pulling force coefficient strongly and is more stable.
Description
Technical Field
The utility model belongs to the technical field of safety rope anti-falling, and particularly relates to an anti-falling device for a safety rope of a tower crane cat ladder.
Background
The tower crane is a lifting device which is most commonly used on a building site, is also called as a tower crane, is used for hoisting raw materials for construction such as steel bars, wood ridges, concrete, steel pipes and the like for construction by lengthening one section by one section, and is an indispensable device on the site. The tower crane work belongs to high-altitude operation, and it is particularly important to ensure the safety of staff. At present, the self-locking structure in the safety rope safety hook is fixed through the mode of friction clamping with the safety rope, when not to its safety rope self-locking operation, the safety rope still with the wearing and tearing contact of self-locking structure large tracts of land, the safety rope is worn and pressed from both sides tightly by the self-locking structure for a long time, tiny fracture and surperficial smoothness can appear in the subregion of safety rope, the holistic clamping effect can seriously be influenced in this glossy subregion of wearing and tearing, the lower pulling force coefficient of holistic bearing can be influenced, tensile stability is not good under the holistic bearing, secondly, the long-time clamp safety rope that presss from both sides, the possibility of fracture also can appear in the safety rope.
Therefore, the utility model of the anti-falling device for the safety rope of the tower crane cat ladder is very necessary.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an anti-falling device for a safety rope of a tower crane crawling ladder, which comprises a safety anti-falling base shell and a safety anti-falling self-locking structure, wherein the safety anti-falling base shell and the safety anti-falling self-locking structure are integrally and fixedly arranged together, the safety anti-falling self-locking structure is fixedly arranged in the safety anti-falling base shell, and the safety anti-falling base shell is fixedly hung on the tower crane crawling ladder.
Preferably, the safety anti-falling base body shell comprises an anti-falling shell, a safety hanging hook, a safety rope hole, a safety rope, a safety hanging hook, a guide rail groove, compression springs and a directional roller group, wherein the safety hanging hook is fixed at the top of the upper part of the anti-falling shell, the safety rope hole is formed in the lower part of the anti-falling shell, the safety rope penetrates out of the anti-falling shell through the safety rope hole and is fixedly connected with the safety hanging hook, the directional roller group is fixedly installed in the anti-falling shell, the guide rail groove is formed in the anti-falling shell, and two compression springs are fixedly installed in the guide rail groove.
Preferably, the guide rail groove is correspondingly formed in the inner wall of the anti-falling shell, one end of the compression spring is connected with the inner wall of the guide rail groove, and the other end of the compression spring is connected with the safety anti-falling self-locking structure.
Preferably, the safe anti-falling self-locking structure comprises a directional shaft body, a clockwork spring, a winding and unwinding outer cylinder, rotating pulley teeth, movable pulley teeth, a limiting block and a linear sliding block, wherein the winding and unwinding outer cylinder is fixedly arranged on the directional shaft body through the clockwork spring, and the rotating pulley teeth are fixedly arranged below the winding and unwinding outer cylinder; the other ends of the two compression springs are fixedly connected with two sides of the linear sliding block, the linear sliding block is slidably mounted in the guide rail groove, the movable pulley teeth are fixedly mounted on the linear sliding block, a limit block is horizontally and fixedly mounted on one side of each movable pulley tooth, and the edges of two ends of each rotary pulley tooth and each movable pulley tooth are provided with gear teeth meshed with each other.
Preferably, both ends of the directional shaft body are fixedly arranged on the inner wall of the anti-falling machine shell, the outer part of the directional shaft body is fixedly connected with the inner end of the clockwork spring, and the outer end of the clockwork spring is fixedly connected with the winding and unwinding outer cylinder.
Preferably, the two ends of the rotating sliding wheel teeth are rotatably arranged on the inner wall of the anti-crash shell through bearings, the rotating sliding wheel teeth and the movable sliding wheel teeth have the same structure, and the directional rolling wheel group is positioned between the lower parts of the rotating sliding wheel teeth and the movable sliding wheel teeth in a linear sliding block reset state.
Compared with the prior art, the utility model has the following beneficial effects:
the safety rope is small in contact area and small in abrasion coefficient in the continuous pulling process, the surface roughness of the safety rope can be conveniently guaranteed for a long time, and secondly, the self-locking safety rope mode of the safety anti-falling self-locking structure is not a clamping mode, but is used for locking the safety anti-falling self-locking structure, so that the safety rope resists the downward pulling force generated by falling of subsequent workers through friction force generated by winding turns of the safety rope, and the mode is strong in overall bearing of the downward pulling force coefficient and more stable.
Drawings
Fig. 1 is a schematic view of a partially sectioned structure of an assembled device of the present utility model.
Fig. 2 is a schematic view of a partial enlarged structure at a of fig. 1 according to the present utility model.
In the figure:
the anti-falling base body shell 1, the anti-falling machine shell 11, the safety hanging hook 12, the safety rope hole 13, the safety rope 14, the safety hanging hook 15, the guide rail groove 16, the compression spring 17, the directional roller group 18, the safety anti-falling self-locking structure 2, the directional shaft body 21, the clockwork spring 22, the retractable outer cylinder 23, the rotary sliding gear teeth 24, the movable sliding gear teeth 25, the limiting block 26 and the linear sliding block 27.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
In the description of the embodiments, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 2:
the utility model provides an anti-falling device for a safety rope of a tower crane crawling ladder, which comprises a safety anti-falling base shell 1 and a safety anti-falling self-locking structure 2, wherein the safety anti-falling base shell 1 and the safety anti-falling self-locking structure 2 are integrally and fixedly arranged together, the safety anti-falling self-locking structure 2 is fixedly arranged in the safety anti-falling base shell 1, and the safety anti-falling base shell 1 is fixedly suspended on the tower crane crawling ladder.
Examples
Specifically, the safety anti-falling base body shell 1 comprises an anti-falling shell 11, a safety hanging hook 12, a safety rope hole 13, a safety rope 14, a safety hanging hook 15, a guide rail groove 16, a compression spring 17 and a directional roller group 18, wherein a maintenance door is installed on the anti-falling shell 11 through bolt tightening, the maintenance door is a door plate made of rectangle, a maintenance window matched with the anti-falling shell 11 is formed in the anti-falling shell 11, the anti-falling shell 11 is fixed at the top of the anti-falling shell 11, the safety rope hole 13 is formed in the lower part of the anti-falling shell 11, the safety rope 14 penetrates out of the anti-falling shell 11 through the safety rope hole 13 and is fixedly connected with the safety hanging hook 15, the safety hanging hook 15 is buckled with a binding safety rope belt of a tower crane worker, the directional roller group 18 is fixedly installed in the anti-falling shell 11, two ends of the directional roller group 18 are fixedly installed above the safety rope hole 13 through bearings, a ring groove is formed in the directional roller group 18, the ring groove is matched with the safety rope 14, extension and the anti-falling shell 14 can be limited, the situation that the safety rope 14 is extended out and the guide rail 16 is relatively wound in the process of extending and the winding, and the compression spring 17 is fixedly installed in the guide rail groove 16.
Specifically, the guide rail groove 16 is correspondingly formed in the inner wall of the anti-falling casing 11, the guide rail groove 16 is a rectangular groove, a linear guide rail base is mounted on the inner wall of the guide rail groove 16, the linear guide rail base and the safety anti-falling self-locking structure 2 are assembled together, one end of the compression spring 17 is connected with the inner wall of the guide rail groove 16, and the other end of the compression spring 17 is connected with the safety anti-falling self-locking structure 2.
Specifically, the safety anti-falling self-locking structure 2 comprises a safety anti-falling self-locking structure 2, wherein the safety anti-falling self-locking structure 2 comprises a directional shaft body 21, a clockwork spring 22, a winding and unwinding outer cylinder 23, a rotary sliding wheel tooth 24, a movable sliding wheel tooth 25, a limiting block 26 and a linear sliding block 27, the winding and unwinding outer cylinder 23 is fixedly arranged on the directional shaft body 21 through the clockwork spring 22, and the rotary sliding wheel tooth 24 is fixedly arranged below the winding and unwinding outer cylinder 23; the other ends of the two compression springs 17 are fixedly connected with two sides of a linear sliding block 27, the linear sliding block 27 is slidably arranged in a guide rail groove 16, a movable sliding wheel tooth 25 is fixedly arranged on the linear sliding block 27, a limit block 26 is horizontally and fixedly arranged on one side of the movable sliding wheel tooth 25, the edges of two ends of the rotary sliding wheel tooth 24 and the movable sliding wheel tooth 25 are provided with mutually meshed wheel teeth, and the safety rope 14 is respectively wound on the winding and unwinding outer cylinder 23 and the rotary sliding wheel tooth 24.
Specifically, both ends of the directional shaft body 21 are fixedly arranged on the inner wall of the anti-falling casing 11, the outer part of the directional shaft body 21 is fixedly connected with the inner end of the clockwork spring 22, the outer end of the clockwork spring 22 is fixedly connected with the winding and unwinding outer cylinder 23, the winding and unwinding outer cylinder 23 is an I-shaped outer cylinder, the starting end of the safety rope 14 is wound on the winding and unwinding outer cylinder 23, and the safety hook 15 is fixedly arranged on the terminal end of the safety rope 14.
Specifically, the two ends of the rotating pulley teeth 24 are rotatably installed on the inner wall of the anti-falling shell 11 through bearings, the rotating pulley teeth 24 and the movable pulley teeth 25 are identical in structure, the directional pulley group 18 is located between the lower parts of the fixed pulley teeth 24 and the movable pulley teeth 25 in a reset state of the linear sliding block 27, the rotating pulley teeth 24 and the movable pulley teeth 25 are pulleys made in an I shape, the middle of the movable pulley teeth 25 is a smooth surface, the safety rope 14 is wound in contact with the smooth surface, the number of turns of the safety rope 14 wound on the rotating pulley teeth 24 is not less than 5, the movable pulley teeth 25 cannot rotate, a limit block 26 on the movable pulley teeth 25 can play a good limit role, the limit block 26 can resist the inner side surface of the anti-crash shell 11, and the moving impact stress of the movable pulley teeth 25 is reduced to be too large, so that the situation that the rotating pulley teeth 24 and the movable pulley teeth 25 are damaged due to collision is caused.
Examples
The defects or problems in the prior art are mainly solved by the structure of the safety anti-falling self-locking structure 2: when a worker needs to climb or work on a ladder of a tower crane, the safety suspension hook 12 of the safety anti-falling base body shell 1 is preferentially fixed above the tower crane ladder, at this time, the safety hook 15 of the safety anti-falling base body shell 1 is buckled and fixed with the safety rope belt of the worker, in the process of climbing displacement of the worker, the worker drives the safety rope 14 to be continuously pulled out through the safety hook 15, the safety rope 14 drives the rotating pulley teeth 24 of the safety anti-falling self-locking structure 2 to rotate, in the process, the pull-down force generated by the safety rope 14 is smaller than the spring pull force of the compression spring 17, the moving pulley teeth 25 do not displace, the self-locking anti-falling function is not realized, the rotating pulley teeth 24 drive the winding and unwinding outer barrel 23 through the safety rope 14 (the safety rope 14 of the winding and unwinding outer barrel 23 can also be rewound onto the rotating pulley teeth 24), at this time, the winding and unwinding of the spring 23 tightens the spring 22, after the pull-down force of the safety rope 14 disappears, the winding and unwinding outer barrel 23 drives the safety rope 14 to be gradually contracted and reset, if the pull-down coefficient of the safety rope 14 is excessively large (the number of turns of the workers is large), the winding the safety rope 14 is larger than the pull-down coefficient, the pull force generated by the rotating pulley teeth is generated by the winding the safety rope, the rotating pulley teeth 25 is opposite to the moving pulley teeth, and the moving pulley teeth 25 is stopped, and the rotating pulley teeth are rotated, and the rotating pulley teeth of the winding and the safety rope is kept.
By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.
Claims (6)
1. The utility model provides a tower crane cat ladder safety rope is with preventing weighing down device, its characterized in that, including safe anti-weighing down base member shell (1) and safe anti-weighing down self-locking structure (2), safe anti-weighing down base member shell (1) and safe anti-weighing down self-locking structure (2) integral type fixed mounting are in the same place, safe anti-weighing down self-locking structure (2) fixed mounting is in the inside of safe anti-weighing down base member shell (1), and safe anti-weighing down base member shell (1) is fixed to be hung on the tower crane cat ladder.
2. The fall arrest device for a safety rope of a tower crane cat ladder according to claim 1, wherein: the safety anti-falling base body shell (1) comprises an anti-falling shell (11), a safety hanging hook (12), a safety rope hole (13), a safety rope (14), a safety lifting hook (15), a guide rail groove (16), a compression spring (17) and a directional roller group (18), wherein the safety hanging hook (12) is fixed at the top of the upper portion of the anti-falling shell (11), the safety rope hole (13) is formed in the lower portion of the anti-falling shell (11), the safety rope (14) penetrates out of the anti-falling shell (11) through the safety rope hole (13) to be fixedly connected with the safety lifting hook (15), the directional roller group (18) is fixedly installed in the anti-falling shell (11), the guide rail groove (16) is formed in the anti-falling shell (11), and two compression springs (17) which are opposite are fixedly installed in the guide rail groove (16).
3. The fall arrest device for a safety rope of a tower crane cat ladder according to claim 2, wherein: the guide rail groove (16) is correspondingly formed in the inner wall of the anti-falling shell (11), one end of the compression spring (17) is connected with the inner wall of the guide rail groove (16), and the other end of the compression spring (17) is connected with the safety anti-falling self-locking structure (2).
4. The fall arrest device for a safety rope of a tower crane cat ladder according to claim 1, wherein: the safe anti-falling self-locking structure (2) comprises a directional shaft body (21), a clockwork spring (22), a winding and unwinding outer cylinder (23), rotating pulley teeth (24), movable pulley teeth (25), a limiting block (26) and a linear sliding block (27), wherein the winding and unwinding outer cylinder (23) is fixedly installed on the directional shaft body (21) through the clockwork spring (22), and the rotating pulley teeth (24) are fixedly installed below the winding and unwinding outer cylinder (23); the other ends of the two compression springs (17) are fixedly connected with two sides of the linear sliding block (27), the linear sliding block (27) is slidably mounted in the guide rail groove (16), the movable sliding wheel teeth (25) are fixedly mounted on the linear sliding block (27), a limit block (26) is horizontally and fixedly mounted on one side of the movable sliding wheel teeth (25), and the edges of two ends of the rotary sliding wheel teeth (24) and the movable sliding wheel teeth (25) are provided with mutually meshed wheel teeth.
5. The fall arrest device for a safety rope of a tower crane cat ladder according to claim 4, wherein: the two ends of the directional shaft body (21) are fixedly arranged on the inner wall of the anti-crash shell (11), the outer part of the directional shaft body (21) is fixedly connected with the inner end of the clockwork spring (22), and the outer end of the clockwork spring (22) is fixedly connected with the winding and unwinding outer cylinder (23).
6. The fall arrest device for a safety rope of a tower crane cat ladder according to claim 4, wherein: the two ends of the rotary sliding wheel teeth (24) are rotatably arranged on the inner wall of the anti-falling machine shell (11) through bearings, and the rotary sliding wheel teeth (24) and the movable sliding wheel teeth (25) have the same structure; the directional roller group (18) is positioned between the rotary sliding wheel teeth (24) and the lower parts of the movable sliding wheel teeth (25) in the reset state of the linear sliding block (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320537682.4U CN219539292U (en) | 2023-03-20 | 2023-03-20 | Anti-falling device for safety rope of tower crane cat ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320537682.4U CN219539292U (en) | 2023-03-20 | 2023-03-20 | Anti-falling device for safety rope of tower crane cat ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219539292U true CN219539292U (en) | 2023-08-18 |
Family
ID=87705117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320537682.4U Active CN219539292U (en) | 2023-03-20 | 2023-03-20 | Anti-falling device for safety rope of tower crane cat ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219539292U (en) |
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2023
- 2023-03-20 CN CN202320537682.4U patent/CN219539292U/en active Active
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