Aerial work maintenance safety protection device

Abstract

The application relates to a high-altitude operation maintenance safety protection device which comprises a fall protector and a safety rope lifter, a first safety rope is arranged below the fall protector, a hook is arranged below the first safety rope, a rope clasp is arranged above the fall protector, a second safety rope is arranged above the rope clasp, the safety rope lifter is arranged above the second safety rope, and the second safety rope is connected with the safety rope lifter; the application has the advantages of reasonable structure, high safety, active self-help function and reduced secondary injury risk.

Description

Technical Field

[0001] The invention belongs to the technical field of aerial work tools, and in particular relates to a safety protection device for aerial work maintenance. Background Art

[0002] With the development of science and technology, the use of electrical appliances is increasing, resulting in an increasing consumption of electricity. In high-altitude high-voltage overhead lines, in order to ensure the normal operation of the overhead lines, it is necessary to regularly inspect and maintain the electrical components thereon; in order to ensure the safety of maintenance personnel when working at height, a safety rope is one of the most commonly used protection methods for high-altitude operations. One end is hooked on a fixed object, and the other end is fixed to the maintenance personnel's body belt, which can effectively reduce the risk of maintenance personnel falling from heights; the length of the existing safety rope is fixed, and the height of the overhead line is very high, which causes the maintenance personnel to fall and trigger the safety rope. Due to the lack of leverage, the maintenance personnel are often suspended in mid-air, resulting in the maintenance personnel can only passively wait for rescue and cannot implement self-rescue, thereby greatly increasing the risk of secondary injury to the maintenance personnel; therefore, it is very necessary to provide a high-altitude operation maintenance safety protection device with a reasonable structure, high safety, active self-rescue function, and reduced secondary injury risk. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a high-altitude maintenance safety protection device with a reasonable structure, high safety, active self-rescue function and reduced risk of secondary injury.

[0004] The object of the present invention is achieved as follows: a high-altitude maintenance safety protection device includes a fall arrester and a safety rope hoist, a first safety rope is provided below the fall arrester, and a hook is provided below the first safety rope; a rope clamp is provided above the fall arrester, a second safety rope is provided above the rope clamp, a safety rope hoist is provided above the second safety rope, and the second safety rope is connected to the safety rope hoist.

[0005] The fall arrester comprises a shell, a ratchet is arranged inside the shell, a steel belt is arranged inside the ratchet, and a pawl is arranged below the ratchet.

[0006] The safety rope lifter includes frames on left and right sides, and a limit rod and a connecting rod are respectively provided on the upper and lower sides of the inner side of the frame. A first bracket is provided below the limit rod, and a trigger guide wheel is provided on the inner side of the first bracket. The first bracket is connected to the frame through a first shaft.

[0007] A group of trigger side plates are provided below the first bracket. The trigger side plates are connected by connecting rods, and a pressure-sensitive trigger plate is provided inside the trigger side plates.

[0008] A second bracket is provided below the trigger side plate, a transmission guide wheel group is provided inside the second bracket, and the second bracket is connected to the frame through a second shaft.

[0009] A supporting plate is provided below the second bracket, a lower ridge is provided at the bottom of the supporting plate, a supporting plate is provided below the supporting plate, and an inner groove is provided inside the supporting plate corresponding to the lower ridge.

[0010] A built-in motor power guide wheel is arranged on the right side below the frame, and a limited guide wheel is arranged above the built-in motor power guide wheel.

[0011] Adjustment frames are provided on the front and rear sides below the frame, and a number of positioning holes are evenly arranged inside the adjustment frame from top to bottom. The positioning holes are semi-waist-shaped structures and the openings are tilted downward; a positioning rod is provided inside the positioning hole, and the positioning rod is connected to the first shaft rod through a spring.

[0012] The pressure-sensitive trigger plate forms a series circuit with the built-in motor power guide wheel, the power supply and the controller, and controls the built-in motor power guide wheel to perform corresponding rotational movement.

[0013] The series circuit formed between the pressure-sensitive trigger plate, the built-in motor power guide wheel, the power supply and the controller has two states, corresponding to the two movements of the built-in motor power guide wheel; State 1: when the pressure-sensitive trigger plate is subjected to external pressure, the built-in motor power guide wheel is controlled to rotate counterclockwise; State 2: when the pressure-sensitive trigger plate is not subjected to external pressure, the built-in motor power guide wheel is controlled to rotate clockwise.

[0014] Beneficial effects of the present invention: The present invention is a safety protection device for high-altitude maintenance work. During use, according to whether the second safety rope is in a bent state in the initial state or in a straightened state when subjected to force, the built-in motor power guide wheel is triggered to rotate in the corresponding direction, and then when the maintenance personnel falls and is in a suspended state, the present invention can be automatically triggered and the maintenance personnel can be lifted up, so that they can find a leverage point to achieve self-rescue without having to passively wait for rescue. At the same time, it effectively avoids secondary injuries to the maintenance personnel in a suspended state; when the present invention is triggered, the total length between the first safety rope and the second safety rope thereon will not change before and after the triggering, and will not be shortened due to the triggering of the safety protection device, and then the maximum range of movement of the maintenance personnel can always be guaranteed after the safety protection device is triggered; the present invention has the advantages of reasonable structure, high safety, active self-rescue function and reduced secondary injury risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a front view of a safety protection device for maintenance work at height.

[0016] Figure 2 The present invention is a schematic diagram of the internal structure of a fall arrester of a high-altitude maintenance safety protection device.

[0017] Figure 3 A three-dimensional diagram of a safety rope hoist for a high-altitude maintenance safety protection device according to the present invention Figure 1 .

[0018] Figure 4 A three-dimensional diagram of a safety rope hoist for a high-altitude maintenance safety protection device according to the present invention Figure 2 .

[0019] Figure 5 For the present invention Figure 4 Front view of .

[0020] Figure 6 For the present invention Figure 4 rear view.

[0021] Figure 7 For the present invention Figure 3 side view.

[0022] Figure 8 For the present invention Figure 4 side view.

[0023] In the figure: 1, fall arrester 11, shell 12, ratchet 13, steel belt 14, pawl 2, first safety rope 3, hook 4, rope clamp 5, second safety rope 6, safety rope hoist 61, frame 62, limit rod 63, connecting rod 64, first bracket 65, trigger guide wheel 66, first shaft rod 67, trigger side plate 68, connecting rod 69, pressure-sensitive trigger plate 610, second bracket 611, transmission guide wheel group 612, second shaft rod 613, support plate 6131, lower ridge 614, support plate 6141, inner groove 615, built-in motor power guide wheel 616, limit guide wheel 617, adjustment frame 618, positioning hole 619, positioning rod 620, spring. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings. Example

[0025] like Figure 1-8As shown, a safety protection device for aerial work maintenance includes a fall arrester 1 and a safety rope hoist 6. A first safety rope 2 is provided below the fall arrester 1, and a hook 3 is provided below the first safety rope 2; a rope clamp 4 is provided above the fall arrester 1, a second safety rope 5 is provided above the rope clamp 4, a safety rope hoist 6 is provided above the second safety rope 5, and the second safety rope 5 is connected to the safety rope hoist 6.

[0026] The present invention is a safety protection device for high-altitude maintenance work. During use, according to whether the second safety rope 5 is in a bent state in the initial state or in a straightened state when subjected to force, the built-in motor-powered guide wheel 615 is triggered to rotate in the corresponding direction. Then, when the maintenance personnel falls and is in a suspended state, the present invention can be automatically triggered and the maintenance personnel can be lifted up, so that they can find a leverage point to achieve self-rescue without having to passively wait for rescue. At the same time, it effectively avoids secondary injuries to the maintenance personnel in a suspended state. When the present invention is triggered, the total length between the first safety rope 2 and the second safety rope 5 thereon will not change before and after the triggering, and will not be shortened due to the triggering of the safety protection device. Then, after the safety protection device is triggered, the maximum range of movement of the maintenance personnel can always be guaranteed. The present invention has the advantages of reasonable structure, high safety, active self-rescue function, and reduced secondary injury risk. Example

[0027] like Figure 1-8 As shown, a safety protection device for aerial work maintenance includes a fall arrester 1 and a safety rope hoist 6. A first safety rope 2 is provided below the fall arrester 1, and a hook 3 is provided below the first safety rope 2; a rope clamp 4 is provided above the fall arrester 1, a second safety rope 5 is provided above the rope clamp 4, a safety rope hoist 6 is provided above the second safety rope 5, and the second safety rope 5 is connected to the safety rope hoist 6.

[0028] The fall arrester 1 includes a housing 11 , a ratchet 12 is provided inside the housing 11 , a steel belt 13 is provided inside the ratchet 12 , and a pawl 14 is provided below the ratchet 12 .

[0029] The safety rope hoist 6 includes a frame 61 on the left and right sides, and a limit rod 62 and a connecting rod 63 are respectively provided on the upper and lower sides of the inner side of the frame 61. A first bracket 64 is provided below the limit rod 62, and a trigger guide wheel 65 is provided on the inner side of the first bracket 64. The first bracket 64 is connected to the frame 61 through a first shaft 66.

[0030] In this embodiment, the limiting plate is used to limit the first bracket.

[0031] In this embodiment, two first shafts are provided, wherein one first shaft is used to connect the first bracket and the frame; the other first shaft is used to connect the two first brackets and is connected to the positioning rod through a spring.

[0032] A set of trigger side plates 67 are provided below the first bracket 64 . The trigger side plates 67 are connected by connecting rods 68 . A pressure-sensitive trigger plate 69 is provided inside the trigger side plates 67 .

[0033] A second bracket 610 is provided below the trigger side plate 67 , a transmission guide wheel assembly 611 is provided inside the second bracket 610 , and the second bracket 610 is connected to the frame 61 via a second shaft 612 .

[0034] In this embodiment, two second shafts are provided, wherein one second shaft is used for connecting the second bracket to the frame; and the other second shaft is used for connecting the two second brackets.

[0035] A support plate 613 is provided below the second bracket 610 , a lower ridge 6131 is provided at the bottom of the support plate 613 , a support plate 614 is provided below the support plate 613 , and an inner groove 6141 is provided inside the support plate 614 corresponding to the lower ridge 6131 .

[0036] A built-in motor power guide wheel 615 is provided on the right side below the frame 61 , and a limit guide wheel 616 is provided above the built-in motor power guide wheel 615 .

[0037] Adjustment frames 617 are provided on both the front and rear sides below the frame 61. Several positioning holes 618 are evenly arranged inside the adjustment frame 617 from top to bottom. The positioning holes 618 are semi-waist-shaped structures and the openings are tilted downward; a positioning rod 619 is provided inside the positioning hole 618, and the positioning rod 619 is connected to the first shaft rod 66 by a spring 620.

[0038] In this embodiment, the positioning hole in the adjustment frame is used to facilitate the adjustment of the position of the positioning rod in the adjustment frame, thereby adjusting the spring pre-tension, and then adjusting the force required for the downward movement of the first bracket. The force required to trigger the present invention is adjusted according to actual usage requirements, making it easy to adapt to different users and greatly improving the practicality and versatility of the device.

[0039] The pressure-sensitive trigger plate 69 forms a series circuit with the built-in motor power guide wheel 615, the power supply and the controller, and controls the built-in motor power guide wheel 615 to rotate accordingly.

[0040] The series circuit formed between the pressure-sensitive trigger plate 69, the built-in motor power guide wheel 615, the power supply and the controller has two states, corresponding to the two movements of the built-in motor power guide wheel 615; State 1: When the pressure-sensitive trigger plate 69 is subjected to external pressure, the built-in motor power guide wheel 615 is controlled to rotate counterclockwise; State 2: When the pressure-sensitive trigger plate 69 is not subjected to external pressure, the built-in motor power guide wheel 615 is controlled to rotate clockwise.

[0041] In this embodiment, the working principle of the present invention is as follows: when the second safety rope is not subjected to force, it is always in a bent state under the action of the support plate and the supporting plate. The supporting plate engages with the lower ridge of the support plate through the inner groove, thereby providing stable support for the second bracket and the transmission guide wheel assembly. Even if the second safety rope is subjected to a relatively light force, the built-in motor-powered guide wheel will not be triggered, thereby effectively avoiding the hidden danger of misoperation.

[0042] When the maintenance personnel falls, the fall arrester quickly brakes and locks the maintenance personnel, leaving them in a suspended state. At this time, the second safety rope is straightened due to the force, forcing the trigger guide wheel to move downward, contacting the pressure-sensitive trigger plate and applying a certain pressure to the pressure-sensitive trigger plate, thereby triggering the series circuit formed between the pressure-sensitive trigger plate, the built-in motor power guide wheel, the power supply and the controller, and controlling the built-in motor power guide wheel to rotate counterclockwise, lifting the maintenance personnel. When the maintenance personnel finds a fulcrum to save themselves, the first bracket and the trigger guide wheel are driven to recover under the action of the spring force, and no longer apply pressure to the pressure-sensitive trigger plate, thereby releasing the trigger state.

[0043] The present invention is a safety protection device for high-altitude maintenance work. During use, according to whether the second safety rope 5 is in a bent state in the initial state or in a straightened state when subjected to force, the built-in motor-powered guide wheel 615 is triggered to rotate in the corresponding direction. Then, when the maintenance personnel falls and is in a suspended state, the present invention can be automatically triggered and the maintenance personnel can be lifted up, so that they can find a leverage point to achieve self-rescue without having to passively wait for rescue. At the same time, it effectively avoids secondary injuries to the maintenance personnel in a suspended state. When the present invention is triggered, the total length between the first safety rope 2 and the second safety rope 5 thereon will not change before and after the triggering, and will not be shortened due to the triggering of the safety protection device. Then, after the safety protection device is triggered, the maximum range of movement of the maintenance personnel can always be guaranteed. The present invention has the advantages of reasonable structure, high safety, active self-rescue function, and reduced secondary injury risk.

Claims

1. A safety protection device for high-altitude maintenance work, which includes a fall arrester and a safety rope hoist, characterized in that: A first safety rope is provided below the fall arrester, and a hook is provided below the first safety rope; a rope clamp is provided above the fall arrester, a second safety rope is provided above the rope clamp, a safety rope hoist is provided above the second safety rope, and the second safety rope is connected to the safety rope hoist; The safety rope hoist includes a frame on the left and right sides, a limit rod and a connecting rod are respectively provided on the upper and lower sides of the inner side of the frame, a first bracket is provided below the limit rod, a trigger guide wheel is provided inside the first bracket, and the first bracket is connected to the frame through a first shaft; A set of trigger side plates is provided below the first bracket, the trigger side plates are connected by connecting rods, and a pressure-sensitive trigger plate is provided inside the trigger side plates; A built-in motor-powered guide wheel is provided on the right side below the frame, and a limited guide wheel is provided above the built-in motor-powered guide wheel; The pressure-sensitive trigger plate forms a series circuit with the built-in motor power guide wheel, the power supply and the controller, and controls the built-in motor power guide wheel to rotate accordingly; The series circuit formed between the pressure-sensitive trigger plate, the built-in motor-powered guide wheel, the power supply, and the controller has two states, corresponding to the two movements of the built-in motor-powered guide wheel. State 1: When the pressure-sensitive trigger plate is subjected to external pressure, the built-in motor-powered guide wheel is controlled to rotate counterclockwise. State 2: When the pressure-sensitive trigger plate is not subjected to external pressure, the built-in motor power guide wheel is controlled to rotate clockwise.

2. A safety protection device for high-altitude maintenance work according to claim 1, characterized in that: The fall arrester comprises a shell, a ratchet is arranged inside the shell, a steel belt is arranged inside the ratchet, and a pawl is arranged below the ratchet.

3. A safety protection device for high-altitude maintenance work according to claim 1, characterized in that: A second bracket is provided below the trigger side plate, a transmission guide wheel group is provided inside the second bracket, and the second bracket is connected to the frame through a second shaft.

4. A safety protection device for high-altitude maintenance work according to claim 3, characterized in that: A supporting plate is provided below the second bracket, a lower ridge is provided at the bottom of the supporting plate, a supporting plate is provided below the supporting plate, and an inner groove is provided inside the supporting plate corresponding to the lower ridge.

5. A safety protection device for high-altitude maintenance work according to claim 1, characterized in that: Adjustment frames are provided on the front and rear sides below the frame, and a number of positioning holes are evenly arranged inside the adjustment frame from top to bottom. The positioning holes are semi-waist-shaped structures and the openings are tilted downward; a positioning rod is provided inside the positioning hole, and the positioning rod is connected to the first shaft rod through a spring.

Images