Safety rope self-rescue device

Abstract

The utility model discloses a safety rope self-rescue device which comprises a locking ratchet wheel, a ratchet wheel swing arm, a shell and a self-rescue rope. The locking ratchet wheel is installed in the shell in a one-way rotating mode, one end of the ratchet wheel swing arm is installed in the shell in a rotating mode, the other end of the ratchet wheel swing arm abuts against one ratchet of the locking ratchet wheel, and the safety rope penetrates through the shell and is connected with the ratchets of the ratchet wheel swing arm in a clamped mode. One end of the self-rescue rope is arranged in the shell, the other end of the self-rescue rope extends to the position below the shell and forms a pedal part, and the two feet of a constructor are connected with the pedal parts of the self-rescue rope of the pair of safety rope self-rescue devices. The utility model relates to the technical field of building construction equipment, and can solve the problem that constructors need to wait for rescue after accidentally falling during construction in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a safety rope self-rescue device. Background Art

[0002] In construction and other high-altitude working environments, construction workers need to wear safety ropes during the construction process to ensure the safety of the construction. However, due to emergency situations such as equipment failure and accidents, construction workers may suddenly fall. Since the construction workers are suspended in the air by safety ropes after falling, they need to wait for rescue, which poses certain safety hazards. Long-term suspension will also cause physical discomfort to the construction workers. Therefore, it is necessary to provide a safety rope self-rescue device that can solve the problem in the prior art that construction workers need to wait for rescue after accidentally falling during construction. Summary of the invention

[0003] The utility model aims to provide a safety rope self-rescue device, which can solve the problem in the prior art that construction workers need to wait for rescue after accidentally falling during construction.

[0004] The utility model is achieved in this way:

[0005] A safety rope self-rescue device comprises a locking ratchet, a ratchet swing arm, a shell and a self-rescue rope; the locking ratchet can be rotatably installed in the shell in one direction, one end of the ratchet swing arm can be rotatably installed in the shell, the other end of the ratchet swing arm abuts against one of the ratchet teeth of the locking ratchet, the safety rope passes through the shell and is engaged with the ratchet teeth of the ratchet swing arm; one end of the self-rescue rope is arranged in the shell, the other end of the self-rescue rope extends to the bottom of the shell and forms a footrest, and the feet of the construction workers are connected to a pair of footrests of the self-rescue rope of the safety rope self-rescue device.

[0006] The shell includes a fixed part, a telescopic part and a connecting rod; one end of a pair of connecting rods is fixedly connected to both sides of one end of the telescopic part close to the fixed part, and the pair of connecting rods can be slidably inserted into the fixed part and locked and fixed so that the telescopic part is movably connected to the fixed part; the locking ratchet is arranged in the telescopic part, and the ratchet swing arm and one end of the self-rescue rope are arranged in the fixed part.

[0007] The fixing part, the telescopic part and a pair of connecting rods are enclosed to form an annular structure for the safety rope to pass through.

[0008] A fixed shaft is arranged inside the fixed part, one end of the self-rescue rope is fixedly connected to the fixed shaft, and the self-rescue rope can be wound around the fixed part.

[0009] The pedal part is annular in structure, so that the feet of construction workers can be placed in the pedal part of the annular structure.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model is provided with a self-rescue rope, which provides support for construction workers when they stand through the footrest of the annular structure, and can provide a fulcrum for the construction workers to climb upward along the self-rescue rope after the construction workers fall, which is conducive to the self-rescue of the construction workers, reduces the time of waiting for rescue, and even eliminates the need to wait for rescue, reduces the potential risks and discomfort of construction workers in a suspended state, and effectively reduces the accident rate of high-altitude operations.

[0012] 2. The utility model is provided with a locking ratchet, and the unidirectional rotation characteristic of the locking ratchet is utilized to ensure that the entire safety rope self-rescue device is reliably installed and locked on the safety rope, and will not slip off the safety rope when subjected to gravity. It can be used to assist construction workers in self-rescue when they accidentally fall and trigger the safety belt protection, which is beneficial to reducing the accident rate of high-altitude operations.

[0013] 3. The utility model has small size, light weight, is easy to carry and store, is easy to install, can be operated with one hand, has high flexibility in use, strong durability, and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the safety rope self-rescue device of the utility model (working state);

[0015] Figure 2 It is a structural schematic diagram of the safety rope self-rescue device of the utility model (non-working state);

[0016] Figure 3 It is a schematic diagram of the installation of a safety rope self-rescue device of the utility model.

[0017] In the figure, 1 is a locking ratchet, 2 is a ratchet swing arm, 3 is a housing, 301 is a fixed part, 302 is a telescopic part, 303 is a connecting rod, 304 is a fixed shaft, 4 is a self-rescue rope, 401 is a pedal part, and 5 is a safety rope. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Please see attached Figure 1 To Attachment Figure 3A safety rope self-rescue device comprises a locking ratchet 1, a ratchet swing arm 2, a shell 3 and a self-rescue rope 4; the locking ratchet 1 is rotatably mounted in the shell 3 through a wheel axle, one end of the ratchet swing arm 2 is rotatably mounted in the shell 3 through a rotating shaft, the other end of the ratchet swing arm 2 is abutted against one of the ratchet teeth of the locking ratchet 1, and the safety rope 5 passes through the shell 3 and is engaged with the ratchet teeth of the ratchet swing arm 2; one end of the self-rescue rope 4 is arranged in the shell 3, and the other end of the self-rescue rope 4 extends to the bottom of the shell 3 and is formed with a footrest 401, and the feet of the construction worker are connected to a pair of footrests 401 of the self-rescue rope 4 of the safety rope self-rescue device.

[0020] By utilizing the unidirectional rotation characteristic of the ratchet, the locking ratchet 1 has a counterclockwise unidirectional rotation function as shown in the figure after installation, so that the housing 3 can only move upward along the safety rope 5. The ratchet swing arm 2 has a small amplitude rotation function after being installed through the rotating shaft, which can be used to limit the clockwise rotation of the locking ratchet 1 and allow the ratchet teeth of the locking ratchet 1 to pass through the ratchet swing arm 2 when the ratchet teeth rotate counterclockwise as shown in the figure, and the ratchet swing arm 2 can be rotated and reset by its own weight or torsion spring after the ratchet teeth pass.

[0021] The self-rescue rope 4 provides support for the construction workers when they are standing through the foot pedal part 401, and transmits the gravity of the construction workers to the outer shell 3. In conjunction with the one-way rotation function of the locking ratchet 1, the ratchet teeth of the locking ratchet 1 can clamp the safety rope 5 after being subjected to force, thereby preventing the outer shell 3 from falling along the safety rope 5 after the construction workers step on the foot pedal part 401. The greater the gravity of the construction workers, the better the locking effect of the locking ratchet 1 on the safety rope 5.

[0022] The locking ratchet 1 and the ratchet swing arm 2 are both made of 7050 aluminum alloy, which is light in weight, high in structural strength and strong in carrying capacity; the self-rescue rope 4 can adopt an aramid static rope with a diameter of 10 mm, and the length of the self-rescue rope 4 can be adaptively selected according to actual use requirements, preferably 1.5 m.

[0023] Please see attached Figure 1 and attached Figure 2 The shell 3 includes a fixed part 301, a telescopic part 302 and a connecting rod 303; one end of a pair of connecting rods 303 is fixedly connected to both sides of one end of the telescopic part 302 close to the fixed part 301, and the pair of connecting rods 303 can be slidably inserted into the fixed part 301 and fastened and fixed by bolts, so that the telescopic part 302 is movably connected to the fixed part 301; the locking ratchet 1 is arranged in the telescopic part 302, and the ratchet swing arm 2 and one end of the self-rescue rope 4 are arranged in the fixed part 301.

[0024] Preferably, a pair of guide rails may be provided in the fixed portion 301, so that the pair of connecting rods 303 can be slidably inserted in the pair of guide rails, ensuring stable insertion and sliding of the telescopic portion 302 and the fixed portion 301, and convenient and simple disassembly. The fixed portion 301, the telescopic portion 302 and the connecting rod 303 may be made of 7050 aluminum alloy with a thickness of 6 mm, with high structural strength and strong bearing capacity.

[0025] Please see attached Figure 2 The fixing portion 301, the telescopic portion 302 and a pair of connecting rods 303 form an annular structure for the safety rope 5 to pass through.

[0026] The length of the connecting rod 303 can be adaptively selected according to the diameter of the safety rope 5 to ensure that the safety rope 5 can pass through the annular structure.

[0027] Please see attached Figure 1 A fixed shaft 304 is provided in the fixed part 301 , one end of the self-rescue rope 4 is fixedly connected to the fixed shaft 304 , and the self-rescue rope 4 can be wound around the fixed part 301 .

[0028] Preferably, the fixed shaft 304 can be made of 7050 aluminum alloy with a diameter of 100 mm, which is light in weight, high in structural strength, and strong in bearing capacity, thereby ensuring the reliable connection of the self-rescue rope 4. The self-rescue rope 4 can be wound around the fixed portion 301 for easy storage and carrying.

[0029] Please see attached Figure 1 To Attachment Figure 3 The footrest portion 401 is in an annular structure, so that the feet of the construction workers can be inserted into the footrest portion 401 of the annular structure.

[0030] The size of the annular structure of the pedal portion 401 can be adaptively adjusted according to actual use requirements to ensure that the feet of construction workers can be worn in the annular structure and are not easy to fall out.

[0031] Please see attached Figure 1 To Attachment Figure 3 , the usage method and working principle of the utility model are:

[0032] The telescopic part 302 is moved away from the fixed part 301 through the pair of connecting rods 303, so that the safety rope 5 passes through the annular structure formed by the fixed part 301, the telescopic part 302 and the pair of connecting rods 303. The telescopic part 302 is pushed toward the fixed part 301, and the pair of connecting rods 303 are inserted into the fixed part 301, so that the ratchet teeth of the locking ratchet 1 can clamp the safety rope 5, and the end of the ratchet swing arm 2 abuts against the ratchet teeth of the locking ratchet 1. The pair of connecting rods 303 and the fixed part 301 are locked by bolts to ensure that the safety rope self-rescue device is locked on the safety rope 5 in one direction.

[0033] A pair of safety rope self-rescue devices are installed on the safety rope 5 in the same way, and the heights of the pair of safety rope self-rescue devices are kept roughly the same as much as possible.

[0034] After the safety belt on the construction worker is reliably connected to the safety rope 5, the construction worker can insert his feet into the footrest 401 of the pair of safety rope self-rescue devices to stand. Due to the one-way rotation characteristic of the ratchet, the housing 3 can only move upward along the safety rope 5, and the ratchet limits the downward movement of the housing 3, thereby ensuring that the housing 3 can be reliably fixed on the safety rope 5 and does not fall off after bearing the gravity of the construction worker.

[0035] After a construction worker falls and triggers the safety belt protection, the pedal part 401 bears the construction worker's gravity, so that the locking ratchet 1 is effectively locked on the safety rope 5. The construction worker can climb up through the self-rescue rope 4 to achieve the purpose of self-rescue, reducing the time waiting for rescue, or even eliminating the need to wait for rescue.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safety rope self-rescue device, characterized by: The invention comprises a locking ratchet (1), a ratchet swing arm (2), a housing (3) and a self-rescue rope (4); the locking ratchet (1) can be rotatably mounted in the housing (3); one end of the ratchet swing arm (2) can be rotatably mounted in the housing (3); the other end of the ratchet swing arm (2) is in contact with one of the ratchet teeth of the locking ratchet (1); a safety rope (5) passes through the housing (3) and is engaged with the ratchet teeth of the ratchet swing arm (2); one end of the self-rescue rope (4) is arranged in the housing (3); the other end of the self-rescue rope (4) extends to the bottom of the housing (3) and forms a pedal portion (401); the feet of the construction worker are connected to the pedal portions (401) of the self-rescue rope (4) of a pair of safety rope self-rescue devices.

2. The safety rope self-rescue device according to claim 1 is characterized in that: The housing (3) comprises a fixed portion (301), a telescopic portion (302) and a connecting rod (303); one end of a pair of connecting rods (303) is fixedly connected to both sides of one end of the telescopic portion (302) close to the fixed portion (301); the pair of connecting rods (303) can be slidably inserted into the fixed portion (301) and locked and fixed, so that the telescopic portion (302) and the fixed portion (301) are movably connected; the locking ratchet (1) is arranged in the telescopic portion (302), and the ratchet swing arm (2) and one end of the self-rescue rope (4) are arranged in the fixed portion (301).

3. The safety rope self-rescue device according to claim 2 is characterized in that: The fixing portion (301), the telescopic portion (302) and the pair of connecting rods (303) enclose and form an annular structure through which the safety rope (5) passes.

4. The safety rope self-rescue device according to claim 2 or 3, characterized in that: A fixed shaft (304) is provided in the fixed portion (301), one end of the self-rescue rope (4) is fixedly connected to the fixed shaft (304), and the self-rescue rope (4) can be wound around the fixed portion (301).

5. The safety rope self-rescue device according to claim 1 is characterized in that: The pedal part (401) is an annular structure, so that the feet of construction workers can be placed in the annular pedal part (401).

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