Safety protection device for high-altitude operation maintenance

Abstract

The invention relates to a high-altitude operation maintenance safety protection device which comprises a falling protector and a safety rope lifter, a first safety rope is arranged below the falling protector, and a hook is arranged below the first safety rope; a rope clamping ring is arranged above the falling protector, a second safety rope is arranged above the rope clamping ring, a safety rope lifter is arranged above the second safety rope, and the second safety rope is connected with the safety rope lifter; the device has the advantages that the structure is reasonable, the safety is high, the active self-rescue function is realized, and the secondary injury risk is reduced.

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, more and more electrical appliances are used, which makes the consumption of electricity more and more. 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 high altitude, safety rope is one of the most commonly used protection methods for high-altitude work. One end is hung on a fixed object through a hook, and the other end is fixed to the full-body laces on the maintenance personnel, which can effectively reduce the risk of high-altitude falls of maintenance personnel; 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. Because there is no leverage, the maintenance personnel are often suspended in the air, causing the maintenance personnel to passively wait for rescue and unable to 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 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 secondary injury risk.

[0004] The objective of the present invention is achieved in this way: a safety protection device for aerial work maintenance comprises a fall arrester and a safety rope hoist, a first safety rope is arranged below the fall arrester, and a hook is arranged below the first safety rope; a rope clamp is arranged above the fall arrester, a second safety rope is arranged above the rope clamp, a safety rope hoist is arranged 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 ratchet pawl is arranged below the ratchet.

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

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

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

[0009] A support plate is arranged below the second bracket, a lower convex edge is arranged at the bottom of the support plate, a support plate is arranged below the support plate, and an inner groove is arranged inside the support plate corresponding to the lower convex edge.

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

[0011] Adjustment frames are arranged on both 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 inclined downward; a positioning rod is arranged 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 movements.

[0013] The series circuit formed between the pressure-sensitive trigger plate and 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 one: when the pressure-sensitive trigger plate is subjected to external pressure, the built-in motor power guide wheel is controlled to rotate counterclockwise; state two: 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] The beneficial effects of the present invention are as follows: the present invention is a safety protection device for aerial work maintenance. 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 passively waiting for rescue, and at the same time, secondary injuries to the maintenance personnel in the suspended state are effectively avoided; 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 activities 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, realization of active self-rescue function, and reduction of 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 of aerial work.

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

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

[0018] Figure 4 A three-dimensional diagram of a safety rope hoist of a high-altitude maintenance safety protection device of 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 of.

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

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

[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 convex 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 in conjunction with 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 arranged below the fall arrester 1, and a hook 3 is arranged below the first safety rope 2; a rope clamp 4 is arranged above the fall arrester 1, a second safety rope 5 is arranged above the rope clamp 4, a safety rope hoist 6 is arranged 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 aerial work maintenance. 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 power guide wheel 615 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 passively waiting for rescue, and at the same time, the secondary injury to the maintenance personnel in the suspended state is effectively avoided; 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, and then the maximum range of movement of the maintenance personnel can be always guaranteed after the safety protection device is triggered; the present invention has the advantages of reasonable structure, high safety, realization of active self-rescue function, and reduction of 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 arranged below the fall arrester 1, and a hook 3 is arranged below the first safety rope 2; a rope clamp 4 is arranged above the fall arrester 1, a second safety rope 5 is arranged above the rope clamp 4, a safety rope hoist 6 is arranged 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 comprises a housing 11 , a ratchet 12 is arranged inside the housing 11 , a steel belt 13 is arranged inside the ratchet 12 , and a pawl 14 is arranged 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 arranged on the upper and lower sides of the inner side of the frame 61. A first bracket 64 is arranged below the limit rod 62, and a trigger guide wheel 65 is arranged on the inner side of the first bracket 64. The first bracket 64 is connected to the frame 61 through a first shaft rod 66.

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

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

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

[0033] A second bracket 610 is disposed below the trigger side plate 67 , a transmission guide wheel set 611 is disposed 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 shaft rods are provided, wherein one second shaft rod is used for connecting the second bracket to the frame; and the other second shaft rod is used for connecting two second brackets.

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

[0036] A built-in motor power guide wheel 615 is arranged on the right side below the frame 61 , and a limit guide wheel 616 is arranged 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, and a number of positioning holes 618 are evenly arranged from top to bottom inside the adjustment frame 617. The positioning holes 618 are semi-waist-shaped structures and the openings are inclined 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 position of the positioning rod in the adjustment frame is conveniently adjusted through the positioning hole 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, which is convenient for different users and greatly improves 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 perform corresponding rotation.

[0040] The series circuit formed between the pressure-sensitive trigger plate 69 and 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 respectively; state one: 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 two: 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 support plate, and the support plate is engaged with the lower convex edge of the support plate through the inner groove, so as to provide stable support for the second bracket and the transmission guide wheel group. Even when the second safety rope is subjected to a relatively light force, the built-in motor power guide wheel will not be triggered to move, thereby effectively avoiding the hidden danger of misoperation; 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, contact the pressure-sensitive trigger plate and apply a certain pressure to the pressure-sensitive trigger plate, thereby triggering the series circuit formed between the pressure-sensitive trigger plate and 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 they find a leverage point 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.

[0042] The present invention is a safety protection device for aerial work maintenance. 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 power guide wheel 615 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 passively waiting for rescue, and at the same time, the secondary injury to the maintenance personnel in the suspended state is effectively avoided; 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, and then the maximum range of movement of the maintenance personnel can be always guaranteed after the safety protection device is triggered; the present invention has the advantages of reasonable structure, high safety, realization of active self-rescue function, and reduction of 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 arranged below the fall arrester, and a hook is arranged below the first safety rope; a rope clamp is arranged above the fall arrester, and a second safety rope is arranged above the rope clamp, and a safety rope hoist is arranged above the second safety rope, and the second safety rope is connected to the safety rope hoist.

2. A high-altitude maintenance safety protection device as claimed in 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 high-altitude maintenance safety protection device as claimed in claim 1, characterized in that: The safety rope hoist includes frames on left and right sides, and limit rods and connecting rods are respectively arranged on the upper and lower sides of the inner side of the frame. A first bracket is arranged below the limit rod, and a trigger guide wheel is arranged on the inner side of the first bracket. The first bracket is connected to the frame through a first shaft rod.

4. A high-altitude maintenance safety protection device as claimed in claim 3, characterized in that: A group of trigger side plates are arranged below the first bracket, the trigger side plates are connected by connecting rods, and a pressure-sensitive trigger plate is arranged inside the trigger side plates.

5. A high-altitude maintenance safety protection device as claimed in claim 4, characterized in that: A second bracket is arranged below the trigger side plate, a transmission guide wheel group is arranged inside the second bracket, and the second bracket is connected to the frame through a second shaft rod.

6. A high-altitude maintenance safety protection device as claimed in claim 5, characterized in that: A support plate is arranged below the second bracket, a lower convex edge is arranged at the bottom of the support plate, a support plate is arranged below the support plate, and an inner groove is arranged inside the support plate corresponding to the lower convex edge.

7. A high-altitude maintenance safety protection device as claimed in claim 5, characterized in that: A built-in motor power guide wheel is arranged on the right side below the frame, and a limited position guide wheel is arranged above the built-in motor power guide wheel.

8. A high-altitude maintenance safety protection device as claimed in claim 7, characterized in that: Adjustment frames are arranged on both 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 inclined downward; a positioning rod is arranged inside the positioning hole, and the positioning rod is connected to the first shaft rod through a spring.

9. A high-altitude maintenance safety protection device as claimed in claim 7, characterized in that: 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 movements.

10. A high-altitude maintenance safety protection device as claimed in claim 9, characterized in that: 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 respectively; 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.

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