Adjustable portable lifeline

Abstract

The utility model discloses an adjustable portable lifeline, and relates to the technical field of building construction, the adjustable portable lifeline comprises a steel wire rope and a tightener assembly, one end of the steel wire rope is connected with the tightener assembly, the tightener assembly comprises a machine body, a built-in lifting hook, a winding shaft, a ratchet wheel, a limiting pin, a wrench and a pawl, the machine body is externally connected with the built-in lifting hook, and the ratchet wheel is connected with the built-in lifting hook. And a winding shaft is rotationally mounted in the machine body. According to the adjustable portable lifeline, by arranging a lifting hook assembly, the two ends of a steel wire rope are rolled into rope knots and fixed through rope clamps, firstly, the rope knots at one end of the steel wire rope penetrate through a horseshoe-shaped shackle, and a screw penetrates through a connecting hole in the upper end of an opening of the shackle and then sequentially penetrates through lifting lugs at the root of a hook tip; when in use, the rope knot is simple and convenient to disassemble and assemble, the disassembly process of the rope clip can be omitted, and the rope clip is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an adjustable and convenient lifeline. Background Art

[0002] At present, in the process of construction, falling accidents from heights are the most common and dangerous of the "five major injuries" on construction sites. To prevent falling accidents from heights, we must not only improve workers' safety awareness, but also provide workers with a safe working environment. When working at heights, we require workers to wear safety belts and hang them on reliable hanging points. Usually, we will choose lifelines (wire ropes) as the hanging points for safety belts. Compared with fixed types (expansion bolts, G-type clamps, tension bolts, welded pull rings, etc.), lifelines have the advantages of a large horizontal operating range, less environmental restrictions, and reduced frequency of hook removal.

[0003] However, during the use of the above-mentioned lifeline, the lifeline and the end hanging point are usually connected by a rope clip, which makes it troublesome for workers to install and disassemble. At the same time, the workers' safety knowledge and loading and unloading levels are uneven, which can easily lead to poor installation quality of the lifeline. In addition, when laying a large-span lifeline, it is difficult to straighten it due to the deadweight of the wire rope, resulting in excessive sag of the lifeline and reducing the bearing capacity of the wire rope. Therefore, it is necessary to optimize the design of the lifeline based on the existing standards and improve known defects to ensure the installation quality and bearing capacity of the lifeline.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an adjustable and convenient lifeline is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable and convenient lifeline to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable and convenient lifeline, comprising a wire rope and a tensioner assembly, one end of the wire rope is connected to the tensioner assembly, the tensioner assembly comprises a body, a built-in hook, a winding shaft, a ratchet, a limit pin, a wrench and a pawl, the body is connected to the outside with a built-in hook, and the body has a winding shaft rotatably installed inside, a ratchet is coaxially connected to the side of the winding shaft, and the circumferential gear teeth of the ratchet are engaged with the limit pin, a wrench is rotatably installed in the middle of the ratchet, and a pawl is provided in the middle of the wrench.

[0007] Furthermore, one end of the machine body is connected to an adjacent tower through a self-contained hook, and the other end of the winding shaft is connected to a steel wire rope through a small hook.

[0008] Furthermore, the root of the wrench is rotatably matched with the center of the ratchet, and the middle of the wrench is engaged with the circumferential gear teeth of the ratchet through the pawl.

[0009] Furthermore, the two ends of the steel wire rope are tied into a knot, and the knot is fixed to the steel wire rope through a rope clamp.

[0010] Furthermore, the other end of the steel wire rope is connected to a hook assembly, and the hook assembly includes a shackle and a connecting hole. The shackle is a horseshoe-shaped structure, and the connecting hole is opened through the upper and lower ends of the shackle opening.

[0011] Furthermore, the hook assembly also includes a hook tip and a lifting ear. The shackle is externally connected to a hook tip, and the hook tip is connected to an adjacent tower. A lifting ear is integrally fixed to the root of the hook tip, and the center hole of the lifting ear coincides with the center axis of the upper and lower connecting holes.

[0012] Furthermore, the hook assembly also includes a screw and a nut, the screws are inserted into the connection holes at the upper and lower ends, and the nuts are threadedly fixed to the ends of the screws.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model uses the setting of the hook assembly to tie the two ends of the wire rope into a knot and fix them through a rope clamp. First, the knot at one end of the wire rope is passed through the horseshoe-shaped shackle, and after the screw rod passes through the connecting hole at the upper end of the shackle opening, it passes through the lifting ear at the root of the hook tip in turn, and then passes through the connecting hole at the lower end of the shackle opening and is fixed by a nut. Finally, a reliable connection is established between the hook tip and the adjacent tower connection point. When in use, the knot is easy to disassemble and assemble, and the disassembly process of the rope clamp can be omitted, which is more convenient to use.

[0015] 2. The utility model sets a tensioner assembly, and secondly, directly mounts the other end of the wire rope on the winding shaft, or indirectly connects the rope knot to the winding shaft through a small hook. When in use, pull the wrench to drive the ratchet through the pawl, and then the winding shaft inside the machine body rotates, so as to achieve the purpose of tightening the wire rope. Since the tensioner assembly is externally connected with a built-in hook, the two ends of the wire rope can be conveniently hung on the reliable connection points of adjacent towers, which also simplifies the disassembly process. The lifeline is tightened by the tensioner assembly to reduce the influence of the sag of the wire rope on the bearing capacity of the lifeline. At the same time, the tensioner assembly has a simple and stable structure and light weight, and has little influence on the overall stability and bearing capacity of the lifeline, thereby solving the problems of difficult loading and unloading of the lifeline in the prior art and poor bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the hook assembly of the utility model;

[0018] Figure 3This is a schematic diagram of the structure of the tightener assembly of the utility model.

[0019] In the figure: 1. Wire rope; 2. Rope knot; 3. Rope clip; 4. Hook assembly; 401. Shackle; 402. Connecting hole; 403. Hook tip; 404. Lifting ear; 405. Screw rod; 406. Nut; 5. Tensioner assembly; 501. Machine body; 502. Self-contained hook; 503. Winding shaft; 504. Ratchet; 505. Limit pin; 506. Wrench; 507. Pawl. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figures 1 to 3 As shown, an adjustable and convenient lifeline includes a steel wire rope 1 and a tightener assembly 5. The two ends of the steel wire rope 1 are tied into a knot 2, and the knot 2 is fixed to the steel wire rope 1 through a rope clamp 3. One end of the steel wire rope 1 is connected with the tightener assembly 5. The tightener assembly 5 includes a body 501, a self-contained hook 502, a winding shaft 503, a ratchet 504, a limit pin 505, a wrench 506 and a ratchet 507. The body 501 is externally connected with the self-contained hook 5 02, and a winding shaft 503 is rotatably installed inside the machine body 501, one end of the machine body 501 is connected to the adjacent tower through a self-contained hook 502, and the other end of the winding shaft 503 is connected to the wire rope 1 through a small hook, and a ratchet 504 is coaxially connected to the side of the winding shaft 503, and the circumferential gear teeth of the ratchet 504 are engaged with a limit pin 505, and a wrench 506 is rotatably installed in the middle of the ratchet 504, and a ratchet pawl is provided in the middle of the wrench 506 507, the root of the wrench 506 is rotatably matched with the center of the ratchet 504, and the middle of the wrench 506 is engaged with the circumferential gear teeth of the ratchet 504 through the pawl 507, and the other end of the wire rope 1 is directly mounted on the winding shaft 503, or the knot 2 is indirectly connected to the winding shaft 503 through a small hook. When in use, the wrench 506 is pulled to drive the ratchet 504 through the pawl 507, thereby rotating the winding shaft 503 inside the body 501, so as to achieve the purpose of tightening the wire rope 1. Since the tensioner assembly 5 is externally connected with the built-in hook 502, the two ends of the wire rope 1 can be conveniently hung on the reliable connection points of the adjacent towers, and the disassembly process is also simplified. The lifeline is tightened by the tensioner assembly 5, and the influence of the sag of the wire rope 1 on the bearing capacity of the lifeline is reduced. At the same time, the tensioner assembly 5 has a simple and stable structure and a light weight, and has little influence on the overall stability and bearing capacity of the lifeline.

[0022] like Figure 1 to Figure 2As shown, the other end of the wire rope 1 is connected with a hook assembly 4, which includes a shackle 401 and a connecting hole 402. The shackle 401 is a horseshoe-shaped structure, and the connecting hole 402 is penetrated through the upper and lower ends of the shackle 401. The hook assembly 4 also includes a hook tip 403 and a lifting ear 404. The shackle 401 is externally connected with a hook tip 403, and the hook tip 403 is connected to an adjacent tower. The root of the hook tip 403 is integrally fixed with a lifting ear 404, and the middle hole of the lifting ear 404 coincides with the middle axis of the upper and lower connecting holes 402. The hook assembly 4 also includes a screw 405 and a nut 406. Screws 405 are inserted into the connecting holes 402 at the lower ends, and nuts 406 are threadedly fixed at the ends of the screws 405. The knot 2 at one end of the wire rope 1 is passed through the horseshoe-shaped shackle 401. After the screw 405 passes through the connecting hole 402 at the upper end of the opening of the shackle 401, it passes through the ear 404 at the root of the hook tip 403 in turn, and then passes through the connecting hole 402 at the lower end of the opening of the shackle 401 and is fixed by the nut 406. After that, a reliable connection is established between the hook tip 403 and the adjacent tower connection point, so that the knot 2 can be easily disassembled and assembled, and the disassembly process of the rope clamp 3 can be omitted, which is more convenient to use.

[0023] Working principle: When using this adjustable and convenient lifeline, the two ends of the steel wire rope 1 are tied into a knot 2 and fixed by a rope clip 3. First, the knot 2 at one end of the steel wire rope 1 is passed through the horseshoe-shaped shackle 401, and the screw 405 is passed through the connecting hole 402 at the upper end of the opening of the shackle 401, and then passed through the ear 404 at the root of the hook tip 403 in turn, and then passed through the connecting hole 402 at the lower end of the opening of the shackle 401, and fixed by the nut 406, and then the hook tip 403 is reliably connected with the adjacent tower connection point, so that the disassembly and assembly of the knot 2 is simple, and the disassembly process of the rope clip 3 can be omitted, which is more convenient to use. Secondly, the other end of the steel wire rope 1 is directly mounted on the winding shaft 503, or the knot 2 is indirectly connected to the winding shaft 503 through a small hook. When in use, the wrench 506 is pulled to drive the ratchet 504 through the pawl 507, thereby rotating the winding shaft 503 inside the body 501, thereby achieving the purpose of tightening the wire rope 1. Since the tensioner assembly 5 is externally connected with the self-contained hook 502, the two ends of the wire rope 1 can be conveniently hung on the reliable connection points of the adjacent tower, which also simplifies the disassembly process. The lifeline is tightened by the tensioner assembly 5 to reduce the influence of the sag of the wire rope 1 on the bearing capacity of the lifeline. At the same time, the tensioner assembly 5 has a simple and stable structure and a light weight, and has little influence on the overall stability and bearing capacity of the lifeline, thereby solving the problems of the difficulty of loading and unloading of the lifeline in the prior art and poor bearing capacity.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An adjustable and convenient lifeline, characterized in that: The invention comprises a steel wire rope (1) and a tensioner assembly (5), wherein one end of the steel wire rope (1) is connected to the tensioner assembly (5), and the tensioner assembly (5) comprises a body (501), a self-contained hook (502), a winding shaft (503), a ratchet (504), a limit pin (505), a wrench (506) and a pawl (507). The body (501) is externally connected to the self-contained hook (502), and the winding shaft (503) is rotatably mounted inside the body (501), a ratchet (504) is coaxially connected to the side of the winding shaft (503), and the circumferential gear teeth of the ratchet (504) are engaged with the limit pin (505), a wrench (506) is rotatably mounted in the middle of the ratchet (504), and a pawl (507) is arranged in the middle of the wrench (506).

2. The adjustable portable lifeline according to claim 1, characterized in that: One end of the machine body (501) is connected to an adjacent tower via a self-contained hook (502), and the other end of the winding shaft (503) is connected to a steel wire rope (1) via a small hook.

3. The adjustable portable lifeline according to claim 1, characterized in that: The root of the wrench (506) is rotatably matched with the center of the ratchet (504), and the middle of the wrench (506) is engaged with the circumferential gear teeth of the ratchet (504) through the pawl (507).

4. The adjustable portable lifeline according to claim 1, characterized in that: The two ends of the steel wire rope (1) are tied into a knot (2), and the knot (2) is fixed to the steel wire rope (1) via a rope clamp (3).

5. The adjustable portable lifeline according to claim 1, characterized in that: The other end of the steel wire rope (1) is connected to a hook assembly (4), and the hook assembly (4) comprises a shackle (401) and a connecting hole (402). The shackle (401) is a horseshoe-shaped structure, and the connecting hole (402) is formed through the upper and lower openings of the shackle (401).

6. The adjustable portable lifeline according to claim 5, characterized in that: The hook assembly (4) further comprises a hook tip (403) and a lifting lug (404); the shackle (401) is externally connected with the hook tip (403), and the hook tip (403) is connected to an adjacent tower; the root of the hook tip (403) is integrally fixed with a lifting lug (404), and the middle hole of the lifting lug (404) coincides with the middle axis of the upper and lower connecting holes (402).

7. The adjustable portable lifeline according to claim 5, characterized in that: The hook assembly (4) further comprises a screw (405) and a nut (406), wherein the screw (405) is inserted into the connection holes (402) at the upper and lower ends, and the nut (406) is threadedly fixed at the end of the screw (405).

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