Safety suspension device for substation maintenance

Abstract

The utility model discloses a safety suspension device for power transformation maintenance, which belongs to the technical field of power transformation maintenance and comprises a buffer cylinder, a movable disc and four guide rods are respectively connected in the buffer cylinder in a sliding manner, a connecting disc is arranged below the buffer cylinder, and four guide sleeves are fixedly connected to the inner wall of the buffer cylinder. The top end of the buffer cylinder is fixedly connected with a first connecting ring, and the bottom face of the connecting disc is fixedly connected with a second connecting ring. According to the safety suspension device for substation maintenance, through mutual cooperation of a buffer cylinder, a guide rod, a connecting disc, a second connecting ring, a first connecting ring, a movable disc, a first damper, a tension spring, a second damper, a compression spring and a guide sleeve, the first connecting ring can be in butt joint with other fixing structures; the second connecting ring can be in butt joint with a related structure of the safety belt in high-altitude operation, so that when the safety belt is subjected to large pulling force in a short time, all the guide rods can slide up and down in the guide sleeve, and meanwhile the movable disc can slide up and down in the buffer cylinder.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of substation maintenance, and particularly relates to a substation maintenance safety suspension device. BACKGROUND

[0002] Substation maintenance is to check, maintain, repair and debug electrical equipment in a substation to ensure the safe and stable operation of the equipment and guarantee the normal power supply of the power system. When substation maintenance is performed in a high-altitude operation scene, a safety belt is used by maintenance personnel, and a corresponding safety suspension device is used for suspension of the safety belt.

[0003] The utility model with the authorized publication number CN209790656U discloses a substation maintenance safety belt suspension device. The device is connected with a cable through a connecting device, and a buffer device is arranged to generate a buffer force and reduce the harm to maintenance personnel. The sliding rod is arranged in the middle of the buffer device, and the four supporting rods moving downward are arranged around the sliding rod. In this way, the direction of the spring elastic force and the direction of the force generated when the maintenance personnel falls are on the same straight line, thereby maximizing the buffer force provided to the maintenance personnel. The sliding unit arranged in the device makes the sliding direction of the supporting rod and the base and the direction of the force on the same straight line, thereby improving the protection effect.

[0004] The above technical solution has a certain buffering effect, but the buffering is realized by a simple spring structure. The spring bounces back and forth, and lacks a protection structure that can improve the stability of the buffer, which leads to unstable buffering, increases the risk of high-altitude operation, and makes the safety of the suspension device general.

[0005] Therefore, the present application provides a substation maintenance safety suspension device to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the present application is to solve the problem that the prior art lacks a protection structure that can improve the stability of the buffer, which leads to unstable buffering, increases the risk of high-altitude operation, and makes the safety of the suspension device general. The present application provides a substation maintenance safety suspension device.

[0007] To achieve the above purpose, the present application adopts the following technical solution:

[0008] The utility model provides a power transformation overhauls safety suspension device, including buffer cylinder, the inside of buffer cylinder is slidably connected with movable disc and four guide bar respectively, the lower part of buffer cylinder is provided with connecting disc, the inner wall of buffer cylinder is fixedly connected with four guide bush, the top of buffer cylinder is fixedly connected with first connecting ring, the bottom surface of connecting disc is fixedly connected with second connecting ring, the inner top wall of buffer cylinder is fixedly connected with two first damper, the outer surface of each first damper is equipped with tension spring, the inner bottom wall of buffer cylinder is fixedly connected with second damper, and the outer surface of second damper is equipped with compression spring.

[0009] Preferably, the top end of each guide rod is fixedly connected with the bottom surface of the movable disc, the bottom end of each guide rod is fixedly connected with the upper surface of the connecting disc, the inside of each guide bush is slidably connected with the outer surface of the guide rod, the telescopic end of each first damper is fixedly connected with the upper surface of the movable disc, the two ends of each tension spring are in contact with the upper surface of the movable disc and the inner top wall of the buffer cylinder respectively, the telescopic end of the second damper is fixedly connected with the bottom surface of the movable disc, the two ends of the compression spring are in contact with the bottom surface of the movable disc and the inner bottom wall of the buffer cylinder respectively, the outer side of the buffer cylinder is provided with a fixed shell, and the upper surface of the fixed shell is fixedly connected with a third connecting ring.

[0010] Preferably, the upper side of the fixed shell is provided with a steel cable, and the two ends of the steel cable are fixedly connected with the outer surface of the third connecting ring and the outer surface of the first connecting ring respectively.

[0011] Preferably, the inner wall of the fixed shell is threadedly connected with four threaded rods, the inside of the fixed shell is provided with four anti-skid top discs, and the side face of each anti-skid top disc close to the threaded rod is fixedly connected with the end of the threaded rod close to the anti-skid top disc.

[0012] Preferably, the inside of each threaded rod is slidably connected with a handgrip rod, and the two ends of each handgrip rod are fixedly connected with a limiting disc.

[0013] Preferably, the lower side of the connecting disc is provided with a shackle body, the inner wall of the shackle body is threadedly connected with a hand-tightening limiting bolt, and the outer surface of the hand-tightening limiting bolt is in contact with the inner wall of the second connecting ring.

[0014] In summary, the technical effects and advantages of the present application are:

[0015] Through the cooperation of the buffer cylinder, the guide rod, the connecting disc, the second connecting ring, the first connecting ring, the movable disc, the first damper, the tension spring, the second damper, the compression spring and the guide sleeve, the first connecting ring can be docked with other fixed structures, and the second connecting ring can be docked with the safety belt related structure in the high-altitude operation, so that when the safety belt is subjected to a large pulling force in a short time, each guide rod can slide up and down inside the guide sleeve, and the movable disc can slide up and down inside the buffer cylinder, so that the cooperation of the first damper and the tension spring and the second damper and the compression spring can greatly increase the stability of the movable disc sliding in the buffer cylinder, thereby ensuring the external safety belt buffering effect while greatly improving the stability and safety of the entire suspension device, avoiding the problem that the lack of a protective structure capable of improving the buffering stability leads to unstable buffering, which increases the risk of high-altitude operation and makes the safety of the suspension device general. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional overall structure schematic view of the power transformation maintenance safety suspension device of the utility model;

[0017] Figure 2 It is a sectional three-dimensional structure schematic view of the buffer cylinder of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the buffer cylinder from the bottom;

[0019] Figure 4 It is a sectional three-dimensional structure schematic view of the fixed shell of the utility model.

[0020] In the drawing: 1, buffer cylinder; 2, guide rod; 3, connecting disc; 4, second connecting ring; 5, first connecting ring; 6, movable disc; 7, first damper; 8, tension spring; 9, second damper; 10, compression spring; 11, guide sleeve; 12, fixed shell; 13, third connecting ring; 14, steel cable; 15, shackle body; 16, hand-tightening limiting bolt; 17, threaded rod; 18, anti-skid top disc; 19, handgrip; 20, limiting disc. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] REFERENCE Figures 1-4The utility model provides a kind of substation overhauling safety suspension device, including buffer cylinder 1, the inside of buffer cylinder 1 is slidably connected with movable disc 6 and four guide rods 2 respectively, the lower of buffer cylinder 1 is provided with connecting disc 3, the top of each guide rod 2 is fixedly connected with the bottom surface of movable disc 6, the bottom of each guide rod 2 is fixedly connected with the upper surface of connecting disc 3, the outside of buffer cylinder 1 is provided with fixed shell 12, the upper surface of fixed shell 12 is fixedly connected with third connecting ring 13, by being provided with fixed shell 12, it is convenient to cooperate other fixed structures and fix the entire device on the pole or channel steel structure of aerial work, by being provided with third connecting ring 13, buffer cylinder 1 can be connected with other structure.

[0023] The inner wall of buffer cylinder 1 is fixedly connected with four guide sleeves 11, the inside of each guide sleeve 11 is slidably connected with the outer surface of guide rod 2, the top of buffer cylinder 1 is fixedly connected with first connecting ring 5, the upper of fixed shell 12 is provided with steel cable 14, the both ends of steel cable 14 are fixedly connected with the outer surface of third connecting ring 13 and the outer surface of first connecting ring 5 respectively, by being provided with steel cable 14, its tensile strength is strong, can connect first connecting ring 5 and third connecting ring 13, and then the flexible connection of buffer cylinder 1 and fixed shell 12 can be realized.

[0024] The bottom of connecting disc 3 is fixedly connected with second connecting ring 4, the inner top wall of buffer cylinder 1 is fixedly connected with two first dampers 7, the telescopic end of each first damper 7 is fixedly connected with the upper surface of movable disc 6, the inner wall of fixed shell 12 is threadedly connected with four threaded rods 17, the inside of fixed shell 12 is provided with four anti-skid top discs 18, the side surface of each anti-skid top disc 18 close to threaded rod 17 is fixedly connected with the end of threaded rod 17 close to anti-skid top disc 18, by being provided with threaded rod 17, it can threadedly travel along the inner wall of fixed shell 12, and then the mutual approach or away of four anti-skid top discs 18 can be controlled, so that the fixing of entire suspension device is realized after the outer surface of pole or channel steel structure in aerial work is clamped by four anti-skid top discs 18.

[0025] The outer surface of each first damper 7 is sleeved with tension spring 8, the both ends of each tension spring 8 are respectively in contact with the upper surface of movable disc 6 and the inner top wall of buffer cylinder 1, the inner bottom wall of buffer cylinder 1 is fixedly connected with second damper 9, the telescopic end of second damper 9 is fixedly connected with the bottom surface of movable disc 6, the inside of each threaded rod 17 is slidably connected with handgrip rod 19, the both ends of each handgrip rod 19 are fixedly connected with limiting disc 20, by being provided with handgrip rod 19, it can reciprocatingly slide along the inside of threaded rod 17, so that threaded rod 17 is conveniently screwed under the structure of handgrip longer handgrip rod 19, by being provided with limiting disc 20, handgrip rod 19 can be prevented from sliding out of the inside of threaded rod 17.

[0026] The outer surface of the second damper 9 is sleeved with a compression spring 10, both ends of the compression spring 10 are in contact with the bottom surface of the movable disc 6 and the inner bottom wall of the buffer cylinder 1 respectively, the lower part of the connecting disc 3 is provided with a shackle body 15, the inner wall of the shackle body 15 is threadedly connected with a hand-tightening limiting bolt 16, the outer surface of the hand-tightening limiting bolt 16 is in contact with the inner wall of the second connecting ring 4, through the setting of the shackle body 15 and the hand-tightening limiting bolt 16, the second connecting ring 4 can be docked, and after the hand-tightening limiting bolt 16 is detached from the shackle body 15, the shackle body 15 is convenient to dock with the external safety belt.

[0027] The working principle of the utility model is: in use, first, the fixed shell 12 is sleeved on the top of the rod-shaped or channel steel structure during aerial work, then the hand-holding rods 19 are held and each threaded rod 17 is twisted, so that the four anti-skid top discs 18 are tightly pressed against the outer surface of the top of the rod-shaped or channel steel structure during aerial work, so that the fixing of the whole suspension device is realized, and the hand-tightening limiting bolt 16 and the shackle body 15 are disassembled to fix and dock the safety belt required during aerial work, so that when the safety belt is subjected to a large pulling force in a short time, each guide rod 2 slides up and down in the guide sleeve 11, and the movable disc 6 slides up and down in the buffer cylinder 1, so that the cooperation of the first damper 7 and the tension spring 8 and the second damper 9 and the compression spring 10 can greatly increase the stability of the movable disc 6 sliding in the buffer cylinder 1, so as to ensure the buffering effect of the external safety belt and greatly improve the stability and safety of the whole suspension device.

[0028] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A safe suspension device for power transformation maintenance, comprising a buffer cylinder (1), characterized in that: The inner part of the buffer cylinder (1) is slidably connected with a movable disc (6) and four guide rods (2), the lower part of the buffer cylinder (1) is provided with a connecting disc (3), the inner wall of the buffer cylinder (1) is fixedly connected with four guide sleeves (11), the top end of the buffer cylinder (1) is fixedly connected with a first connecting ring (5), the bottom surface of the connecting disc (3) is fixedly connected with a second connecting ring (4), the inner top wall of the buffer cylinder (1) is fixedly connected with two first dampers (7), the outer surface of each first damper (7) is sleeved with a tension spring (8), the inner bottom wall of the buffer cylinder (1) is fixedly connected with a second damper (9), and the outer surface of the second damper (9) is sleeved with a compression spring (10).

2. The safe suspension device for substation maintenance according to claim 1, characterized in that: The top end of each guide rod (2) is fixedly connected with the bottom surface of the movable disc (6), the bottom end of each guide rod (2) is fixedly connected with the upper surface of the connecting disc (3), the inner part of each guide sleeve (11) is slidably connected with the outer surface of the guide rod (2), the telescopic end of each first damper (7) is fixedly connected with the upper surface of the movable disc (6), the two ends of each tension spring (8) are in contact with the upper surface of the movable disc (6) and the inner top wall of the buffer cylinder (1) respectively, the telescopic end of the second damper (9) is fixedly connected with the bottom surface of the movable disc (6), the two ends of the compression spring (10) are in contact with the bottom surface of the movable disc (6) and the inner bottom wall of the buffer cylinder (1) respectively, the outer side of the buffer cylinder (1) is provided with a fixed shell (12), and the upper surface of the fixed shell (12) is fixedly connected with a third connecting ring (13).

3. The safe suspension device for substation maintenance according to claim 2, characterized in that: The upper part of the fixed shell (12) is provided with a steel cable (14), and the two ends of the steel cable (14) are fixedly connected with the outer surface of the third connecting ring (13) and the outer surface of the first connecting ring (5) respectively.

4. The safe suspension device for substation maintenance according to claim 2, characterized in that: The inner wall of the fixed shell (12) is threadedly connected with four threaded rods (17), and the inner part of the fixed shell (12) is provided with four anti-skid top discs (18), and the side face of each anti-skid top disc (18) close to the threaded rod (17) is fixedly connected with one end of the threaded rod (17) close to the anti-skid top disc (18).

5. The safe suspension device for substation maintenance according to claim 4, characterized in that: The inner part of each threaded rod (17) is slidably connected with a hand holding rod (19), and the two ends of each hand holding rod (19) are fixedly connected with a limiting disc (20).

6. The safe suspension device for substation maintenance according to claim 1, characterized in that: The lower part of the connecting disc (3) is provided with an unloading buckle body (15), the inner wall of the unloading buckle body (15) is threadedly connected with a hand screw limiting bolt (16), and the outer surface of the hand screw limiting bolt (16) is in contact with the inner wall of the second connecting ring (4).

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