High-place operation anti-falling safety device for open field
By designing high-altitude work fall-proof safety devices for open fields, the problem of lack of fast and safe seat belt suspension points at the construction site and the poor anti-fall effect of existing seat belts is solved, and a fast erecting, safe and reliable construction environment is achieved, and the safety of users is ensured through buffering force.
Patent Information
- Application Number
- CN202421389930.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The construction site lacks fast and safe seat belt suspension points, the existing seat belts have poor anti-falling effect, and emergency stopping has a great reaction force on the human body, which poses safety hazards.
A high-altitude work fall-proof safety device is designed for open fields, including brackets, seat belts and fall-proof components. The bracket can be arranged according to construction needs. The seat belt can be quickly suspended and cushioned through pulleys, pulleys and protective vests. The anti-fall assembly can achieve high-speed rotation pulley stop through the outer limit ring, inner lock wheel and limit spring.
It provides a fast-set, safe and reliable safety suspension point, which improves the safety of construction personnel, reduces construction costs, and slows down to static through buffering force, further ensuring the safety of users.
Smart Images
Figure CN222828969U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of construction safety protection, and particularly relates to a high-altitude operation anti-falling safety device used in open areas. Background Art
[0002] At present, in the field of construction, the safety belts of construction workers are mostly hung on scaffolding. When there is no scaffolding at the construction site, or the scaffolding has been dismantled, construction workers usually set up temporary hanging points on the building by themselves. For scaffolding as a safety belt hanging point, the scaffolding erection and dismantling cycle is long, and more materials are consumed; for setting up temporary hanging points on the building, it will cause damage to the original building, and the stability of the hanging point is difficult to ensure, which poses a great safety hazard.
[0003] In addition, the existing safety belts have poor anti-falling effect, and the emergency braking after falling will exert a large reaction force on the user, which may cause personal injury. Utility Model Content
[0004] The purpose of the utility model is to provide a safety device for preventing falling at heights during work in open areas, so as to solve the problems in the above-mentioned background technology that the construction site lacks quick and safe safety belt hanging points, the safety belt has a poor anti-fall effect, and the emergency stop exerts a large force on the human body.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A fall prevention safety device for high-altitude operations in open areas, comprising a bracket, a safety belt and an anti-fall assembly; the bracket comprises a base, a column and a crossbeam; the base is fixed on the ground; the column is fixed on the base; the crossbeam is fixedly connected to the column; the safety belt comprises a belt wheel, a pull rope and a protective vest; the belt wheel is arranged at the bottom of the column; the pull rope is wound on the belt wheel; the protective vest is connected to the outer end of the pull rope; an elastic rope is arranged between the outer end of the pull rope and the protective vest; the anti-fall assembly is arranged on the belt wheel.
[0007] Furthermore, the anti-fall component includes an outer limit ring, an inner locking wheel and a limit spring; both ends of the rotating shaft of the belt pulley are rotatably connected to the column respectively; the outer limit ring is fixed on the column, and a slot is arranged at intervals on its inner side; the inner locking wheel is fixed on the rotating shaft of the belt pulley and is located inside the outer limit ring, and arc-shaped claws are arranged at intervals on its outer edge, one end of the arc-shaped claw is movably connected to the inner locking wheel, and the other end is connected to the inner locking wheel through a limit spring; the outer end of the arc-shaped claw is adapted to the shape of the slot of the outer limit ring.
[0008] Furthermore, the safety belt also includes a first pulley and a second pulley; the first pulley is arranged at the connection position between the crossbeam and the column; the second pulley is arranged at the end of the crossbeam; and the pull rope is wound around the first pulley and the second pulley.
[0009] Furthermore, the base is a concrete column and is buried in the ground.
[0010] Furthermore, an anti-pull-back buckle is provided below the crossbeam, and the pull rope is passed through the anti-pull-back buckle.
[0011] Furthermore, a rod body is arranged inside the limit spring.
[0012] Furthermore, at least one elastic rope is provided; and the protective vests and the elastic ropes are provided in one-to-one correspondence.
[0013] The utility model has the following beneficial effects:
[0014] 1. The utility model provides a fall prevention safety device for high-altitude operations in open areas. The bracket can be arranged according to construction needs, is simple to set up, and is easy to reuse. It avoids setting up temporary hanging points on buildings, ensures the safety of users, improves work efficiency, and reduces construction costs.
[0015] 2. The utility model provides a fall prevention safety device for high-altitude operations in open areas. When the fall prevention component locks the belt wheel, the upward force received by the human body is buffered by the elastic rope, and the user will not stop falling immediately. The worker is slowly decelerated by the elastic force generated by the elastic rope until it decelerates to a stationary state, further ensuring the safety of the user.
[0016] 3. The utility model provides a fall prevention safety device for high-altitude operations in open areas. When the belt wheel rotates at normal speed or does not rotate, the arc-shaped claw fits with the inner locking wheel under the constraint of the limit spring. At this time, the arc-shaped claw and the groove of the outer limit ring do not contact each other, and there is no interference with the movement of the belt wheel; when the belt wheel rotates at high speed, the centrifugal force of the arc-shaped claw is greater than the constraint force of the limit spring, the end of the arc-shaped claw separates from the inner locking wheel, and as it rotates, it is embedded in the groove of the outer limit ring, the inner locking wheel is stuck and cannot continue to rotate, and the rotating shaft of the belt wheel stops rotating accordingly, achieving braking and anti-falling, and the anti-falling effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the anti-falling safety device involved in the utility model;
[0018] Figure 2 For this utility model Figure 1 Side view of
[0019] Figure 3It is a structural schematic diagram of the anti-falling component involved in the utility model.
[0020] In the figure: 1- bracket, 11- base, 12- column, 13- beam, 2- safety belt, 21- belt pulley, 22- first pulley, 23- second pulley, 24- pull rope, 25- protective vest, 26- anti-pull-back buckle, 3- anti-fall assembly, 31- outer limit ring, 32- inner locking wheel, 33- limit spring. DETAILED DESCRIPTION
[0021] 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.
[0022] like Figure 1 , 2 As shown, the utility model provides a fall prevention safety device for high-altitude operations in open areas, including a bracket 1, a safety belt 2 and an anti-fall assembly 3; the bracket 1 includes a base 11, a column 12 and a crossbeam 13; the base 11 is fixed on the ground; the column 12 is fixed on the base 11; the crossbeam 13 is fixedly connected to the column 12, and the combined structure of the two is L-shaped; the safety belt 2 includes a belt wheel 21, a first pulley 22, a second pulley 23, a pull rope 24 and a protective vest 25; the belt wheel 21 is arranged at the bottom of the column 12; the first pulley 22 is arranged at the connection position between the crossbeam 13 and the column 12; the second pulley 23 is arranged at the end of the crossbeam 13; the pull rope 24 is wound on the belt wheel 21, and the other end passes around the first pulley 22 and the second pulley 23; the protective vest 25 is connected to the outer end of the pull rope 24; the anti-fall assembly 3 is arranged on the belt wheel 21, and when the belt wheel 21 rotates at a faster speed, the belt wheel 21 is locked to prevent the user from falling quickly.
[0023] The base 11 is a concrete column and is buried in the ground. The specific size of the bracket 1 is designed according to the environment. The height of the column 12 is determined by the height of the working surface, usually 5m higher than the working surface; the length of the beam 13 depends on the horizontal distance between the column 12 and the working surface, and its length does not exceed the maximum bending moment that the connection between the column 12 and the beam 13 can withstand.
[0024] The pull rope 24 is a steel wire rope, and an elastic rope is arranged between the outer end thereof and the protective vest 25. When the anti-fall component 3 locks the belt winding wheel 21, the upward force received by the human body is buffered by the elastic rope, and the user will not stop falling immediately. The worker is subjected to the elastic force generated by the elastic rope, and slowly decelerates until it decelerates to a stationary state, further ensuring the safety of the user. Preferably, multiple elastic ropes can be arranged according to construction needs to provide safety protection for multiple users. An anti-pull-back buckle 26 is arranged below the crossbeam 13, and the pull rope 24 is inserted into the anti-pull-back buckle 26 to prevent the pull rope 24 from being pulled up in the reverse direction.
[0025] like Figure 3 As shown, the anti-fall component 3 includes an outer limit ring 31, an inner locking wheel 32 and a limit spring 33; both ends of the rotating shaft of the belt pulley 21 are rotatably connected to the column 12 respectively; the outer limit ring 31 is fixedly arranged on the column 12, and a slot is arranged at intervals on its inner side; the inner locking wheel 32 is fixedly arranged on the rotating shaft of the belt pulley 21, and is located inside the outer limit ring 31, and an arc-shaped claw is arranged at intervals on its outer edge, one end of the arc-shaped claw is movably connected to the inner locking wheel 32, and the other end is connected to the inner locking wheel 32 through a limit spring 33; the outer end of the arc-shaped claw is adapted to the shape of the slot of the outer limit ring 31. When the belt pulley 21 rotates at normal speed or does not rotate, the arc-shaped claw fits with the inner locking wheel 32 under the constraint of the limit spring 33. At this time, the arc-shaped claw and the slot of the outer limit ring 31 do not contact each other, and there is no interference with the movement of the belt pulley 21. When the belt pulley 21 rotates at high speed, the centrifugal force of the arc-shaped claw is greater than the constraint force of the limit spring 33, and the end of the arc-shaped claw separates from the inner locking wheel 32, and as it rotates, it is embedded in the slot of the outer limit ring 31, and the inner locking wheel 32 is stuck and cannot continue to rotate, and the rotating shaft of the belt pulley 21 stops rotating, thereby achieving braking and anti-falling. Preferably, a rod body is set in the limit spring 33 to ensure the movement trajectory of the limit spring 33.
[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A safety device for preventing falling at high places used in open areas, characterized in that: The invention comprises a support (1), a safety belt (2) and an anti-falling component (3); the support (1) comprises a base (11), a column (12) and a crossbeam (13); the base (11) is fixedly mounted on the ground; the column (12) is fixedly mounted on the base (11); the crossbeam (13) is fixedly connected to the column (12); the safety belt (2) comprises a belt pulley (21), a pull rope (24) and a protective vest (25); the belt pulley (21) is arranged at the bottom of the column (12); the pull rope (24) is wound around the belt pulley (21); the protective vest (25) is connected to the outer end of the pull rope (24); an elastic rope is arranged between the outer end of the pull rope (24) and the protective vest (25); the anti-falling component (3) is arranged on the belt pulley (21); The anti-falling assembly (3) comprises an outer limiting ring (31), an inner locking wheel (32) and a limiting spring (33); both ends of the rotating shaft of the belt winding wheel (21) are rotatably connected to the column (12) respectively; the outer limiting ring (31) is fixedly mounted on the column (12), and a slot is arranged at intervals on the inner side thereof; the inner locking wheel (32) is fixedly mounted on the rotating shaft of the belt winding wheel (21) and is located inside the outer limiting ring (31), and arc-shaped claws are arranged at intervals on the outer edge thereof, one end of the arc-shaped claw is movably connected to the inner locking wheel (32), and the other end is connected to the inner locking wheel (32) via the limiting spring (33); the outer end of the arc-shaped claw is adapted to the shape of the slot of the outer limiting ring (31).
2. The anti-falling safety device for high-altitude operations in open areas according to claim 1 is characterized in that: The safety belt (2) further comprises a first pulley (22) and a second pulley (23); the first pulley (22) is arranged at a connection position between the crossbeam (13) and the column (12); the second pulley (23) is arranged at an end of the crossbeam (13); and the pull rope (24) is wound around the first pulley (22) and the second pulley (23).
3. The anti-falling safety device for high-altitude operations in open areas according to claim 1 is characterized in that: The base (11) is a concrete column and is buried in the ground.
4. The anti-falling safety device for high-altitude operations in open areas according to claim 1 is characterized in that: An anti-pull-back buckle (26) is provided below the crossbeam (13), and the pull rope (24) is inserted into the anti-pull-back buckle (26).
5. The anti-falling safety device for high-altitude operations in open areas according to claim 1 is characterized in that: A rod body is arranged inside the limit spring (33).
6. The anti-falling safety device for high-altitude operations in open areas according to claim 1 is characterized in that: At least one elastic rope is provided; the protective vest (25) and the elastic rope are provided in a one-to-one correspondence.