A power tower installation and maintenance anti-falling safety device

Abstract

The application relates to the field of power tower installation and maintenance, in particular to a falling-prevention safety device for power tower installation and maintenance, which comprises a protective ring for being sleeved on a human body, a one-way lock buckle slidably connected to a guide rail of a power tower and a connecting buffer assembly connected between the protective ring and the one-way lock buckle; the protective ring comprises an outer ring connected with the connecting buffer assembly, an inner ring for being sleeved on the human body and a buffer connected between the outer ring and the inner ring. The application has the effects of reducing the instantaneous impact force on the staff, reducing the staff injury probability and reducing the overall land occupation space.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power tower installation and maintenance, in particular to a power tower installation and maintenance anti-falling safety device. BACKGROUND

[0002] In overhead cable maintenance, in order to avoid the falling accidents of workers, anti-falling equipment needs to be set. Since the existing anti-falling equipment is usually hung on the guide rail of a hanging basket or a power pole tower, the instantaneous force on the anti-falling equipment is very large in the moment when the worker falls, which causes the anti-falling equipment to be easily damaged. Moreover, when the anti-falling equipment is subjected to the instantaneous force, the instantaneous force on the worker through the safety belt connected to the worker is very large, which easily causes the worker to be injured.

[0003] Currently, elevators or lifting chairs are also used as safety protection for high-altitude work, and the use of elevators or lifting chairs as anti-falling devices occupies a large space and has a large limitation on the installation environment. SUMMARY

[0004] In order to reduce the instantaneous impact force on the worker, reduce the probability of worker injury, and reduce the overall space occupied, the present application provides a power tower installation and maintenance anti-falling safety device.

[0005] The power tower installation and maintenance anti-falling safety device provided by the present application adopts the following technical solution:

[0006] A power tower installation and maintenance anti-falling safety device, comprising a protective ring for being sleeved on a human body, a one-way lock buckle slidingly connected to a power tower guide rail, and a connecting buffer assembly connected between the protective ring and the one-way lock buckle.

[0007] The protective ring comprises an outer ring connected to the connecting buffer assembly, an inner ring sleeved on the human body, and a buffer member connected between the outer ring and the inner ring.

[0008] By adopting the above technical solution, the protective ring comprises an outer ring and an inner ring, and a buffer member is arranged between the outer ring and the inner ring, which can absorb part of the impact energy when the worker falls and reduce the harm to the body. The one-way lock buckle is slidingly connected to the power tower guide rail, which ensures that the device can move freely in the normal working state, and is quickly locked when falling occurs to prevent further sliding down. The connecting buffer assembly is designed by combining the mounting cylinder, the connecting rod, and the second buffer spring, which can provide additional buffering effect when the worker falls, further disperse the impact force, and protect the safety of the worker. The power tower installation and maintenance anti-falling safety device can effectively reduce the instantaneous impact force on the worker when falling, thereby significantly reducing the risk of injury.

[0009] Optionally, the inner ring comprises a connecting plate connected with the buffer and a movable ring rotatably connected inside the connecting plate, and the buffer is located between the outer ring and the connecting plate.

[0010] By adopting the above technical scheme, when the worker falls accidentally, the buffer can significantly reduce the influence of instantaneous force on the human body, thereby effectively protecting the life safety of the worker. Meanwhile, the rotatable connection between the connecting plate and the movable ring enables the worker to rotate relative to the connecting plate according to the force generated by falling, so as to adapt to the buffer during falling.

[0011] Optionally, the buffer comprises a first buffer spring fixed between the inner wall of the outer ring and the outer wall of the connecting plate, and a plurality of first buffer springs are arranged along the circumference of the outer ring, and an auxiliary support is further arranged between the outer ring and the connecting plate.

[0012] By adopting the above technical scheme, the first buffer spring can rapidly absorb part of the impact force when the worker falls, thereby reducing the harm to the worker. Meanwhile, the plurality of first buffer springs are arranged along the circumference of the outer ring, so as to ensure that the impact force in each direction can be effectively dispersed, thereby further improving the safety. The arrangement of the auxiliary support enhances the structural stability between the inner ring and the outer ring, thereby avoiding deformation or failure during force receiving, so as to ensure the reliability and service life of the whole device.

[0013] Optionally, the auxiliary support comprises a first support rod hinged to the outer wall of the connecting plate, a second support rod hinged to the outer wall of the connecting plate, and a support spring fixed between the first support rod and the second support rod, the support spring being connected to the ends of the first support rod and the second support rod away from the connecting plate, and the inner wall of the outer ring being provided with an embedding groove for the ends of the first support rod and the second support rod away from the connecting plate to be embedded and slid.

[0014] By adopting the above technical scheme, when the worker falls, the first support rod and the second support rod will press the support spring and slide in the embedding groove to move away from each other, thereby increasing the overall rigidity and stability of the protection ring, and also increasing the buffer to the human body, effectively dispersing and absorbing the instantaneous impact force, and reducing the harm to the worker.

[0015] Optionally, the outer wall of the movable ring is fixed with a slide rail with a circular cross section, and the outer wall of the connecting plate is provided with a sliding groove for the slide rail to be embedded and slid.

[0016] By adopting the technical scheme, the movable ring can rotate freely in the connecting plate, so that the force generated by the worker during movement on the anti-falling safety device is effectively dispersed, and the damage risk caused by instantaneous impact is reduced. At the same time, the design of the sliding rail and the sliding groove improves the stability and reliability of the whole device, ensuring that the worker's safety can be quickly responded to in case of an accident.

[0017] Optionally, the connecting plate is in a whole circular arc shape, and a plurality of the connecting plates are arranged at intervals around the axis of the inner ring; the movable ring comprises a first ring in a semicircular arc shape and a second ring in a semicircular arc shape, the inner arc surfaces of the first ring and the second ring oppositely form a complete circle, one end of the first ring and the second ring is hingedly connected, and the other end of the first ring and the second ring is provided with a connecting assembly for fixing the relative positions of the first ring and the second ring.

[0018] By adopting the technical scheme, the connection between the first ring and the second ring is realized, and the opening and closing of the inner ring are realized, so that the inner ring can be quickly sleeved on the human body or taken off from the human body.

[0019] Optionally, the connecting assembly comprises a fixed block fixed at one end of the first ring, the first ring is provided with a fixed groove for embedding the fixed block at one end of the first ring, a locking groove is formed in the inner wall of the fixed groove, and a fixing member for fixing the position of the fixed block in the fixed groove is installed in the locking groove.

[0020] By adopting the technical scheme, the position of the fixed block in the fixed groove can be fixed by the fixing member by embedding the fixed block in the fixed groove, and the fixing of the first ring and the second ring is realized.

[0021] Optionally, the fixing member comprises a locking block slidingly connected in the locking groove and a force spring fixed between the locking groove groove bottom and the locking block, a rotating rod is rotatably connected in the second ring, a pull rope is fixed to the rotating rod, the other end of the pull rope penetrates the locking groove groove bottom and is connected with the locking block, and one end of the rotating rod extends out of one side of the second ring.

[0022] By adopting the technical scheme, when the first ring and the second ring are closed, the fixed block is embedded in the fixed groove, and the locking block is automatically clamped in the locking groove under the action of the force spring, so that the fixed block is firmly locked, and the fixed block is prevented from loosening due to accidental vibration or impact. At the same time, through the cooperation of the rotating rod and the pull rope, the operator can conveniently and quickly unlock the locking block, so that the fixed block is out of the locked state, the movable ring can be quickly opened, and the operation convenience of the device is improved.

[0023] Optionally, the connecting and buffering assembly comprises a plurality of locking members and a connecting cylinder connected between two adjacent locking members, each locking member comprises a mounting cylinder, a connecting rod slidingly connected to two ends of the mounting cylinder, and a sliding plate fixed to one end of each connecting rod located in the mounting cylinder, an installation groove is formed in the mounting cylinder for embedding and sliding of the sliding plate, and a second buffering spring is fixed between the end of the installation groove and the sliding plate and between the two sliding plates.

[0024] By adopting the above technical scheme, the connecting and buffering assembly can effectively absorb and relieve the instantaneous impact force generated when the worker falls, preventing the impact force from being directly transmitted to the protective ring, thereby protecting the worker's body from injury. At the same time, the multi-stage buffering structure further enhances the overall stability and reliability of the device, reducing the risk of damage to the anti-falling equipment during use.

[0025] Optionally, the one-way lock buckle comprises a sliding seat, the sliding seat is U-shaped as a whole, limit columns are fixed to the inner sides of the opposite two inner side walls of the U-shaped sliding seat, a sliding space for embedding the power tower rail is formed between the limit columns and the bottom of the U-shaped groove of the sliding seat, a locking plate is hinged to the bottom of the U-shaped groove of the sliding seat, a locking space in communication with the sliding space is formed in one end of the locking plate located in the U-shaped groove of the sliding seat, the other end of the locking plate located outside the sliding seat is used for connecting with the connecting and buffering assembly, a torsional spring is installed at the hinge shaft of the locking plate, and under the action of the torsional spring, the locking plate and the bottom of the U-shaped groove of the sliding seat are arranged at an angle to make the locking space and the sliding space staggered to lock the power tower rail.

[0026] By adopting the above technical scheme, the U-shaped structure of the sliding seat and the sliding space formed by the limit columns ensure that the one-way lock buckle can smoothly move along the power tower rail while maintaining good directivity. The locking plate and the bottom of the U-shaped groove of the sliding seat are arranged at an angle, and the locking space and the sliding space are staggered by the action of the torsional spring, thereby effectively locking the power tower rail and preventing derailment due to accidental situations. The connection mode of the connecting and buffering assembly and the locking plate allows the worker to rotate the locking plate by the connecting and buffering assembly during climbing to drive the sliding seat to slide on the power tower rail or release the fixed relationship between the sliding seat and the power tower rail.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By providing the connecting and buffering assembly, part of the impact force can be absorbed and dispersed when the worker falls, significantly reducing the instantaneous force on the anti-falling equipment, thereby prolonging the service life of the anti-falling equipment;

[0029] 2. The design of the protective ring, especially the buffer between the inner ring and the outer ring and the auxiliary support, can effectively reduce the instantaneous impact force on the body of the worker and reduce the risk of injury caused by instantaneous impact;

[0030] 3. The structure design of the one-way lock makes the device have good locking performance on the power tower guide rail, has small size, is convenient to carry and install, and is suitable for various complex working environments. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the present application.

[0032] Figure 2 is a schematic diagram for embodying the structure of the one-way lock.

[0033] Figure 3 is a schematic diagram for embodying the structure of the connecting buffer assembly.

[0034] Figure 4 is a schematic diagram for embodying the structure of the auxiliary support.

[0035] Figure 5 is a schematic diagram for embodying the structure of the connecting assembly.

[0036] BRIEF DESCRIPTION OF DRAWINGS: 1, protective ring; 11, outer ring; 111, third ring; 112, fourth ring; 113, safety pin; 114, embedded groove; 12, inner ring; 121, connecting plate; 1211, sliding rail; 122, movable ring; 1221, first ring; 1222, second ring; 13, sliding groove; 14, buffer; 141, first buffer spring; 15, auxiliary support; 151, first support rod; 152, second support rod; 153, support spring; 154, connecting ball; 16, connecting assembly; 161, fixed block; 162, fixed groove; 163, locking groove; 164, fixing piece; 1641, locking block; 1642, tension spring; 1643, sliding groove; 165, rotating rod; 166, pull rope; 2, one-way lock; 21, sliding seat; 22, limiting column; 23, sliding space; 24, locking plate; 25, locking space; 3, connecting buffer assembly; 31, locking piece; 311, mounting cylinder; 312, connecting rod; 313, sliding plate; 314, mounting groove; 315, second buffer spring; 32, connecting cylinder; 33, third buffer spring; 34, climbing buckle; 35, safety ring; DETAILED DESCRIPTION

[0037] The following will be combined with the Figures 1-5 The present application is further described in detail.

[0038] The embodiment of the present application discloses a kind of anti-falling safety device for power tower installation and maintenance. Referring toFigure 1 The anti-falling safety device for power tower installation and maintenance comprises a protective ring 1 for being sleeved on a human body, a one-way lock buckle 2 slidably connected to a power tower guide rail, and a connecting buffer assembly 3 connected between the protective ring 1 and the one-way lock buckle 2. In use, the one-way lock buckle 2 is directly installed on the power tower guide rail, and the protective ring 1 is sleeved on the human body. During the work of the worker, the one-way lock buckle 2 can slide upward on the power tower guide rail. If the worker falls accidentally, the one-way lock buckle 2 can be clamped on the power tower guide rail and cannot slide downward from the power tower guide rail. The instantaneous force generated by the worker is buffered by the connecting buffer assembly 3, thereby reducing the instantaneous force on the worker and reducing the harm to the worker,

[0039] Referring to Figure 1 and Figure 2 The one-way lock buckle 2 comprises a sliding seat 21 in the shape of a whole U. Limiting columns 22 are fixedly connected to the inner walls of the U-shaped sliding seat 21. The limiting columns 22 and the bottom of the U-shaped sliding seat 21 form a sliding space 23 for embedding the power tower guide rail. In use, the sliding seat 21 is directly sleeved on the power tower guide rail, so that the power tower guide rail passes through the sliding space 23 to enable the sliding seat 21 to slide on the power tower guide rail.

[0040] The locking plate 24 is hinged at the bottom of the U-shaped groove of the sliding seat 21, one end of the locking plate 24 is located in the U-shaped groove of the sliding seat 21, the other end of the locking plate 24 is located outside the sliding seat 21, and the connecting buffer assembly 3 is connected to the end of the locking plate 24 located outside the sliding seat 21. A locking space 25 in communication with the sliding space 23 is formed at the end of the locking plate 24 located in the U-shaped groove of the sliding seat 21, and the power tower rail is arranged in the locking space 25. Meanwhile, a torsion spring is installed on the hinge shaft of the locking plate 24, and the locking plate 24 is arranged at an angle with one side of the bottom of the U-shaped groove of the sliding seat 21 under the elastic force of the torsion spring, so that one side of the locking space 25 abuts against the power tower rail, and the greater the force applied to the locking plate 24 to rotate the locking plate 24, the greater the clamping force between the locking plate 24 and the power tower rail, thereby fixing the position of the sliding seat 21 on the power tower rail. When the sliding seat 21 is installed on the power tower rail, the end of the locking plate 24 located outside the sliding seat 21 is inclined downward under the action of the torsion spring to fix the position of the sliding seat 21 on the power tower rail. When the worker moves up, the worker will rotate the locking plate 24 by the connecting buffer assembly 3 and overcome the elastic force of the torsion spring, and when the locking plate 24 is rotated to be perpendicular to the sliding seat 21, the locking space 25 is in communication with the sliding space 23 at this time, and the worker can smoothly slide the sliding seat 21 on the power tower rail. When the worker falls accidentally or when the worker stops climbing, the force applied to the locking plate 24 disappears, and the locking plate 24 is reset under the action of the torsion spring to fix the position of the sliding seat 21 on the power tower rail.

[0041] The connecting buffer assembly 3 is connected between the protective ring 1 and the locking plate 24, and includes a plurality of locking pieces 31 connected end to end, each locking piece 31 including a mounting cylinder 311, a connecting rod 312 slidingly connected to both ends of the mounting cylinder 311, and a sliding plate 313 fixed to one end of each connecting rod 312 located in the mounting cylinder 311, and a mounting groove 314 is formed in the mounting cylinder 311 for the sliding plate 313 to embed and slide, and a second buffer spring 315 is fixed between each sliding plate 313 and the end of the mounting groove 314. The relative positions of the connecting rod 312 and the mounting cylinder 311 are fixed under the elastic force of the second buffer spring 315 in the normal state, and when the worker falls, the two connecting rods 312 will move away from each other, and at this time, the two sliding plates 313 will press the two second buffer springs 315 away from each other, and the two buffer springs will provide a buffer for the connecting rod 312, reducing the hard impact caused by the connecting plate 121 directly abutting against the end of the mounting groove 314, and achieving the buffering of the worker.

[0042] The connecting and buffering assembly 3 further comprises a connecting cylinder 32 connected between the two adjacent locking members 31, the two ends of the connecting cylinder 32 are respectively screwed with the connecting rods 312 on the two locking members 31, and the connecting cylinder 32 is internally processed with left and right threads. When the connecting cylinder 32 is rotated, the two connecting rods 312 can be driven to relatively approach or relatively move away, so that the two locking members 31 are connected, and the distance between the two locking members 31 can be adjusted as needed, so that the overall length of the connecting and buffering assembly 3 is adjusted.

[0043] In order to avoid that the two sliding plates 313 relatively approach in the normal state, the third buffering spring 33 is fixed between the two sliding plates 313 in the same mounting groove 314, so that the positions of the two sliding plates 313 in the mounting groove 314 are fixed under the elastic force of the second buffering spring 315 and the third buffering spring 33.

[0044] Referring to Figure 1 and Figure 2 The carabiner 34 is further fixed on the two locking members 31 at both ends, and the safety ring 35 is fixed on the end of the locking plate 24 outside the sliding seat 21 and on the protective ring 1, and the two carabiners 34 at both ends of the connecting and buffering assembly 3 are respectively hooked on the safety rings 35 on the locking plate 24 and the protective ring 1, so that the connection and fixation of the connecting and buffering assembly 3 are realized.

[0045] Referring to Figure 1 and Figure 4 The protective ring 1 comprises the outer ring 11 connected with the connecting and buffering assembly 3, the inner ring 12 sleeved on the human body, and the buffering member 14 connected between the outer ring 11 and the inner ring 12, and the safety ring 35 is fixed on the outer wall of the outer ring 11.

[0046] The inner ring 12 comprises the connecting plate 121 connected with the buffering member 14 and the movable ring 122 rotationally connected inside the connecting plate 121, the connecting plate 121 fixes the relative position with the outer ring 11 through the buffering member 14, and the movable ring 122 is used for sleeving on the human body, and when the worker falls, the movable ring 122 can be driven to rotate relative to the connecting plate 121 to adapt to the impact on the human body. The connecting plate 121 is in a whole circular arc shape, and a plurality of connecting plates 121 are arranged in a circumferential direction around the movable ring 122.

[0047] The sliding rail 1211 with a circular cross section is fixed on the inner wall of the connecting plate 121, and the sliding groove 13 for embedding and sliding the sliding rail 1211 is formed at the outer arc surface of the movable ring 122, and the rotation cooperation between the movable ring 122 and the connecting plate 121 is realized through the cooperation between the sliding rail 1211 and the sliding groove 13.

[0048] Referring to Figure 4The buffer 14 comprises a first buffer spring 141 fixed between the inner wall of the outer ring 11 and the outer wall of the connecting plate 121, and a plurality of the first buffer springs 141 are arranged along the circumference of the outer ring 11. When the worker falls, the first buffer spring 141 can also play a buffering role on the worker, reducing the impact on the worker. At the same time, an auxiliary support 15 is arranged between the outer ring 11 and the connecting plate 121, which can limit the buffering direction of the connecting plate 121.

[0049] The auxiliary support 15 is also arranged along the inner wall of the outer ring 11 in a plurality of circumferential intervals.

[0050] The auxiliary support 15 comprises a first support rod 151 hinged to the outer wall of the connecting plate 121, a second support rod 152 hinged to the outer wall of the connecting plate 121, and a support spring 153 for fixing the relative position between the first support rod 151 and the second support rod 152. The support spring 153 is located at the end of the first support rod 151 and the second support rod 152 away from the connecting rod 312, and an embedding groove 114 is formed in the inner wall of the outer ring 11 for the end of the first support rod 151 and the second support rod 152 to embed and slide. The end of the first support rod 151 and the second support rod 152 away from the connecting plate 121 is fixed with a connecting ball 154, and the first support rod 151 and the second support rod 152 are embedded in the embedding groove 114 through the connecting ball 154. The support spring 153 is provided with two, and the two support springs 153 are respectively located between the end of the embedding groove 114 and the connecting ball 154. Under normal circumstances, the connecting ball 154 at the end of the first support rod 151 and the connecting ball 154 at the end of the second support rod 152 are given a relative close force under the elastic force of the support spring 153, so as to fix the relative position of the outer ring 11 and the inner ring 12 and support the inner ring 12. When the worker falls to drive the inner ring 12 to deviate to one side, the first buffer spring 141 on the side is compressed, and the end of the first support rod 151 and the second support rod 152 away from the connecting plate 121 is far away from each other and presses the support spring 153, realizing the buffering of the human body.

[0051] Referring to Figure 1 and Figure 4 The movable ring 122 comprises a first ring 1221 in the shape of a semicircular arc and a second ring 1222 in the shape of a semicircular arc, one end of the first ring 1221 and the second ring 1222 are hinged, and the other end is provided with a connecting assembly 16 for fixing the relative position of the two. Through the connecting assembly 16, the end of the first ring 1221 and the second ring 1222 away from the hinge shaft of the two can be fixed or separated, so as to realize the opening and closing of the inner ring 12.

[0052] Referring to Figure 5The connecting assembly 16 comprises a fixed block 161 fixed to one end of the first ring 1221, a fixed groove 162 provided at one end of the second ring 1222 for embedding the fixed block 161, and a locking groove 163 provided on the inner walls of the fixed groove 162, and a fixing member 164 installed in each locking groove 163 for fixing the position of the fixed block 161 in the fixed groove 162.

[0053] Specifically, the fixing member 164 comprises a locking block 1641 slidingly connected in the locking groove 163 and a force spring 1642 fixed between the bottom of the locking groove 163 and the locking block 1641, and a sliding groove 1643 provided at the opposite sides of the fixed block 161 for embedding the two locking blocks 1641. The locking block 1641 is wedge-shaped, and the wedge-shaped slope of the locking block 1641 faces the side of the opening of the fixed groove 162. Under normal circumstances, the locking block 1641 extends out of the fixed groove 162 under the elastic force of the force spring 1642. When the end portions of the first ring 1221 and the second ring 1222 abut, the fixed block 161 is embedded in the fixed groove 162, and the fixed block 161 also pushes the locking block 1641 to be embedded in the locking groove 163 through the wedge-shaped slope of the locking block 1641. When the fixed block 161 is completely embedded in the fixed groove 162, the sliding groove 1643 is in communication with the locking groove 163. At this time, the locking block 1641 also slides into the sliding groove 1643 under the elastic force of the force spring 1642, thereby fixing the position of the fixed block 161 in the fixed groove 162, and achieving the buckling of the first ring 1221 and the second ring 1222.

[0054] The rotating rod 165 is rotatably connected to the second ring 1222, and the pull rope 166 is fixed to the rotating rod 165. One end of the pull rope 166 is connected to the end of the locking block 1641 facing the force spring 1642 through the bottom of the locking groove 163. When it is necessary to open the inner ring 12 to release the fixed relationship between the first ring 1221 and the second ring 1222, the rotating rod 165 can be directly rotated. At this time, the rotating rod 165 can wind the pull rope 166 on the rotating rod 165, and the pull rope 166 can also embed the locking block 1641 in the locking groove 163 and press the force spring 1642, thereby releasing the fixed relationship of the fixed block 161. The two pull ropes 166 are arranged along the length direction of the rotating rod 165, and the two pull ropes 166 are respectively connected to the two locking blocks 1641 on the opposite sides of the fixed groove 162. When the rotating rod 165 is rotated, the two locking blocks 1641 can be simultaneously embedded in the locking groove 163, so as to release the cooperation relationship between the first ring 1221 and the second ring 1222.

[0055] Referring to Figure 1The outer ring 11 comprises a third ring 111 in semicircular arc shape and a fourth ring 112 in semicircular arc shape, the third ring 111 and the fourth ring 112 are hinged at one end and are fixed at the other end by a safety pin 113, so as to realize opening and closing of the outer ring 11.

[0056] The implementation principle of the anti-falling safety device for power tower installation and maintenance is as follows: in use, the worker can directly sleeve the first ring 1221 and the second ring 1222 on the human body, and relatively close the end of the first ring 1221 and the second ring 1222 away from the hinged shaft of itself, so that the fixing block 161 is embedded into the fixing groove 162, and the locking block 1641 is embedded into the locking groove 163 under the elastic force of the elastic force spring 1642, the fixing of the first ring 1221 and the second ring 1222 is realized, and the inner ring 12 is sleeved on the human body. At this time, the inner ring 12 also drives the third ring 111 and the fourth ring 112 away from the end of the hinged shaft of itself to relatively close, until the third ring 111 and the fourth ring 112 abut, and then the third ring 111 and the fourth ring 112 are fixed by the safety pin 113. Then the worker directly sleeves the sliding seat 21 on the power tower guide rail, and the worker can directly climb to the power tower to install and maintain the power tower, and the worker also drives the locking plate 24 to extrude the torsion spring in the process of climbing, so that the sliding seat 21 can smoothly slide along the length direction of the power tower guide rail. When the worker falls accidentally, the locking plate 24 locks the power tower guide rail to fix the position of the sliding seat 21 on the power tower guide rail. At this time, the two sliding plates 313 will slide in the installation cylinder 311 and move away from each other, extruding the second buffer spring 315, and the movable ring 122 will also extrude the first buffer spring 141, realizing the buffering of the human body and reducing the damage of instantaneous force to the human body.

[0057] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A fall arrest safety device for installation and maintenance of a power tower, characterized by: The utility model provides a protective ring (1) for setting on the human body, a one-way lock (2) slidingly connected on the guide rail of the electric power tower and a connecting buffer assembly (3) connected between the protective ring (1) and the one-way lock (2) are included. The protective ring (1) includes an outer ring (11) connected with the connecting buffer assembly (3), an inner ring (12) for setting on the human body and a buffer (14) connected between the outer ring (11) and the inner ring (12). The inner ring (12) includes a connecting plate (121) connected with the buffer (14) and a movable ring (122) rotatably connected inside the connecting plate (121), and the buffer (14) is located between the outer ring (11) and the connecting plate (121). The buffer (14) includes a first buffer spring (141) fixed between the inner wall of the outer ring (11) and the outer wall of the connecting plate (121), and a plurality of first buffer springs (141) are arranged along the circumference of the outer ring (11), and an auxiliary support (15) is further arranged between the outer ring (11) and the connecting plate (121). The auxiliary support (15) includes a first support rod (151) hinged to the outer wall of the connecting plate (121), a second support rod (152) hinged to the outer wall of the connecting plate (121) and a support spring (153) fixed between the first support rod (151) and the second support rod (152), the support spring (153) is connected to the ends of the first support rod (151) and the second support rod (152) away from the connecting plate (121), and an embedding groove (114) is formed in the inner wall of the outer ring (11) for embedding and sliding the ends of the first support rod (151) and the second support rod (152) away from the connecting plate (121). A slide rail (1211) with a circular cross section is fixed to the outer wall of the movable ring (122), and a sliding groove (13) is formed in the outer wall of the connecting plate (121) for embedding and sliding the slide rail (1211). The connecting plate (121) is in the shape of a circular arc as a whole, a plurality of connecting plates (121) are arranged at intervals around the axis of the inner ring (12), the movable ring (122) includes a first ring (1221) in the shape of a semicircular arc and a second ring (1222) in the shape of a semicircular arc, the inner arc surfaces of the first ring (1221) and the second ring (1222) face each other to form a complete circle, one end of the first ring (1221) and the second ring (1222) is hinged, and the other end of the first ring (1221) and the second ring (1222) is provided with a connecting assembly (16) for fixing the relative positions of the first ring (1221) and the second ring (1222).

2. The anti-falling safety device for power tower installation and maintenance according to claim 1, characterized in that: The connecting assembly (16) comprises a fixed block (161) fixed to one end of the first ring (1221), the second ring (1222) is provided with a fixed groove (162) for embedding the fixed block (161) at one end facing the first ring (1221), a locking groove (163) is formed on the inner wall of the fixed groove (162), and a fixing member (164) for fixing the position of the fixed block (161) in the fixed groove (162) is arranged in the locking groove (163).

3. The anti-falling safety device for power tower installation and maintenance according to claim 2, characterized in that: The fixing member (164) comprises a locking block (1641) slidingly connected in the locking groove (163) and a force applying spring (1642) fixed between the bottom of the locking groove (163) and the locking block (1641), a rotating rod (165) is rotatably connected in the second ring (1222), a pull rope (166) is fixed to one end of the rotating rod (165), the other end of the pull rope (166) penetrates the bottom of the locking groove (163) and is connected with the locking block (1641), and one end of the rotating rod (165) extends out of one side of the second ring (1222).

4. The anti-falling safety device for power tower installation and maintenance according to claim 1, characterized in that: The connecting buffer assembly (3) comprises a plurality of locking members (31) and a connecting barrel (32) connected between adjacent two locking members (31), the locking member (31) comprises a mounting barrel (311), a connecting rod (312) slidingly connected at both ends of the mounting barrel (311), and a sliding plate (313) fixed to one end of each connecting rod (312) located in the mounting barrel (311), an installation groove (314) for embedding and sliding of the sliding plate (313) is formed in the mounting barrel (311), and a second buffer spring (315) is fixed between the end of the installation groove (314) and the sliding plate (313) and between the two sliding plates (313).

5. The anti-falling safety device for power tower installation and maintenance according to claim 4, characterized in that: The one-way lock (2) comprises a sliding seat (21), the sliding seat (21) is in the shape of U as a whole, limit columns (22) are fixed to the opposite two inner side walls of the U-shaped sliding seat (21), a sliding space (23) for embedding the power tower guide rail is formed between the limit columns (22) and the bottom of the U-shaped groove of the sliding seat (21), a locking plate (24) is hinged to the bottom of the U-shaped groove of the sliding seat (21), a locking space (25) in communication with the sliding space (23) is formed at one end of the locking plate (24) located in the U-shaped groove of the sliding seat (21), the other end of the locking plate (24) located outside the sliding seat (21) is used for connecting with the connecting buffer assembly (3), a torsional spring is arranged on the hinged shaft of the locking plate (24), and under the action of the torsional spring, the locking plate (24) and the bottom of the U-shaped groove of the sliding seat (21) are arranged at an included angle to make the locking space (25) and the sliding space (23) staggered to lock the power tower guide rail.

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