CN115607871B - Electric power overhauls protector - Google Patents

Abstract

The invention discloses an electric power overhaul protecting device, which comprises a waistband and an anti-falling box; waistband: the left end of the waistband is provided with a button; anti-falling box: the lower end of the inner part of the waistband is provided with a buffer mechanism, the lower ends of the buffer mechanism are symmetrically bolted with safety ropes, and the lower ends of the two safety ropes are fixedly bolted with connecting components which are correspondingly arranged at the two ends of the waistband respectively. The electric power overhauling protection device can automatically wind the winding and unwinding belt, overhauls the workers are not affected, the internal structure is more firmly connected, the workers falling down can be slowly lowered, the workers are prevented from being pulled by the waistband due to inertia when falling down at a high speed, and the use is safer.

Description

Electric maintenance protection device

technical field

The invention relates to the technical field of electric power maintenance, in particular to an electric power maintenance protection device.

Background technique

Power maintenance is an important part of ensuring normal power supply services. Since circuit cables are usually erected at high altitudes, it is usually necessary to use ladders or other tools for high-altitude operations during electrical power maintenance. Due to the relatively narrow working space, the work is difficult and dangerous. This will lead to the danger of workers falling from high altitudes. Among various accidents in the power system, falling accidents are one of the most important casualties today. Therefore, ensuring the safety of construction workers working at heights is a must The top priority of safe production work. Nowadays, electric workers usually use safety ropes and belts to fix themselves with the external structure when performing high-altitude power maintenance, so as to avoid falling, but the safety ropes and belts are exposed to the outside when they are used, which is easy to affect the staff. The progress of maintenance, and the staff will be injured by the belt due to inertia when they accidentally fall, which is not safe enough to use.

The Chinese patent application whose publication number is CN112688228A discloses a kind of anti-falling tool belt for high-altitude power work, including a storage box, a handle tool holder and a belt, the storage box includes a box body and a box cover, and the box cover includes a support Ring, transparent soft tube and elastic ring, the upper and lower ends of the transparent soft tube are respectively connected with the elastic ring and the supporting ring, the mouth of the elastic ring is closed by a seal, and the tool holder with handle includes a handle Ring, support block, rope body and permanent magnet block, the first electromagnet and the first battery pack are arranged in the block body, the first switch is arranged on the outer wall of the block body, and one end of the rope body Fixed with the handle ring or the block body, several permanent magnet blocks are respectively fixed on the middle section of the rope body, and the box body and the block body are respectively fixed on the belt, which does not affect the line of sight of the electric maintenance personnel and is effective Avoid fasteners from falling out, and avoid long ropes moving around freely and affecting the normal work of electric maintenance personnel. However, this patent is used to prevent the falling of working tools and ensure safe construction.

The Chinese patent whose publication number is CN213374829U discloses a kind of power maintenance anti-falling device, which includes a safety belt for preventing falling. One side of the back side is respectively fixedly connected with a fixed block, and the interior of the two fixed blocks is movably connected with a fixed belt through a shaft, and one end of the two fixed belts is movably connected with a limit plate through a shaft, and the limit plate There are two bearing belts connected through the joints in the interior. The waist of the staff can be restrained by setting the secondary protective connection belt outside the safety belt for fall prevention. The fixed belt and the receiving belt are used to cooperate with the connecting plate, positioning plate and electromagnet at the same time, which is convenient for the secondary protection of the staff. , to avoid the problem that the staff accidentally disengages from the seat belt or makes an operation error during work, resulting in a safety accident caused by falling, and improves the safety of the device. However, this patented anti-fall device is for secondary protection when the staff accidentally breaks away from the safety belt or makes a wrong operation during work, and does not consider the situation that the anti-fall device will injure the staff.

Contents of the invention

In order to overcome the defects of the prior art, the present invention provides a protective device for electric power maintenance, which can automatically rewind the take-up and unwind belt without affecting the maintenance of the staff, the internal structure is more firmly connected, and it can also protect the fallen staff. Slow down, to avoid the staff being pulled by the belt due to inertia when falling at high speed, it is safer to use, and can effectively solve the problems in the background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a protective device for electric power maintenance, including a belt and an anti-fall box;

Belt: There is a mesh buckle at the left end of the belt;

Anti-fall box: There is a buffer mechanism at the lower end of the buffer mechanism, and the lower end of the buffer mechanism is symmetrically bolted with a safety rope. Rewinding is convenient for the staff to overhaul, the internal structure is more firmly connected, and it can also slow down the falling staff, so as to prevent the staff from being pulled by the belt due to inertia when the staff falls at high speed, and it is safer to use;

The buffer mechanism includes a first pulley, a first fixed shaft and a buffer belt, the first fixed shaft is arranged at the inner lower end of the anti-fall box, the middle part of the first fixed shaft is connected with the first pulley in rotation, the first fixed The outer surface of the shaft is symmetrically provided with a second clockwork spring, and the outer ends of the second clockwork spring are fixedly connected with the inner wall of the groove on the inner arc surface of the first pulley, and the inside of the first pulley is wound with a buffer belt. The inner end of the buffer belt is fixedly connected with the first pulley, and the lower end of the buffer belt passes through the strip groove at the lower end of the anti-fall box and is symmetrically bolted with a safety rope at the end to facilitate the retraction of the buffer belt.

Further, the inner upper end of the anti-fall box is provided with a second fixed shaft, the middle part of the second fixed shaft is rotatably connected with a second pulley, and the middle part of the outer surface of the second fixed shaft is provided with a first clockwork spring. The outer end of the clockwork spring is fixedly connected with the inner wall of the second pulley, the inside of the second pulley is wound with a retractable belt, the inner end of the retractable belt is fixedly connected with the second pulley, and the upper end of the retractable belt wears Pass through the bar-shaped opening on the upper end of the anti-fall box and be provided with a fixed ring at the end to facilitate the retracting and unwinding of the retractable belt.

Further, the groove inside the first pulley is symmetrically slidably connected with an internal thread ring, and the two internal thread rings are fixedly connected by a spring that is movably sleeved in the middle of the first fixed shaft, and the left and right sides of the first fixed shaft The threaded teeth that are threadedly connected with the inner threaded ring are arranged symmetrically, which can play a buffering role for the outward release of the buffer zone.

Further, the screw thread directions at the left and right ends of the first fixed shaft are opposite, which facilitates the synchronous movement of the two internal thread rings.

Further, the groove provided on the inner arc surface of the first pulley is evenly provided with a limit groove, and the outer surface of the internal thread ring is evenly provided with a limit projection that is slidably connected with the limit groove, so as to limit the internal thread ring. bit effect.

Further, the connecting assembly includes a fixing plate and a connecting ring, the fixing plates are located inside the belt, the four corners of the fixing plate are fixedly connected to the belt through rivets, the rear end of the connecting ring passes through the opening corresponding to the front end of the belt and It is fixedly connected with the middle part of the fixed plate corresponding to the same side, and the lower end of the safety rope is bound and fixed in the middle part of the corresponding connecting ring on the same side, so that the connection is more firm.

Further, the belt includes a belt body, the belt body is made of PBO fiber, and a backing plate is arranged in the center of the belt body.

In the high-altitude operation of electric power maintenance, due to the relatively narrow working space, the operation is difficult and dangerous, and a little carelessness will cause a fall accident. The safety belt is worn by the operator when working at a high place to prevent the operator from happening to Personal protective equipment for falling and protecting operators from or reducing injuries caused by falling. The safety belt is composed of a belt, safety rope, various metal accessories, etc. The requirements for its use are: 1. Where it is 2 meters above the ground All work carried out should be regarded as high-altitude operations, and safety belts should be used for high-altitude operations; 2. Safety belts should be hung high and low, and should be hung on poles, solid components, or steel frames or wire ropes specially used for hanging safety belts. 3. When the seat belt is hung, it must be confirmed that the load-bearing part of the suspension point is firm before it can be hung; there are also patents such as CN213374829U, CN203235198U and CN206964915U, which mainly use specific protection principles and protection structures to ensure maintenance during operation Personal safety of personnel, preventing falls from heights caused by untightened seat belt buckles, deformation of hooks, or unreliable attachment points during the operation process, so as to prevent in advance and provide safe and reliable protection for staff. There are also some power maintenance protection devices that are mainly used to prevent power tools from falling to prevent safety accidents, such as patents CN112688228A, CN215025472U, CN209628863U, CN111037527B and CN114794713A, which mainly solve the problem of easy access to power tools at any time during high-altitude work. Improves work efficiency and securely holds when not in use. Therefore, the existing protection devices for power maintenance can basically meet the requirements for preventing the fall of operating tools and operators. Occasionally, the problem of injury to the staff during the fall prevention process, especially the situation of waist sprains, occurs from time to time in power maintenance operations. The prior art A buffer is installed on the seat belt, and the seat belt and the buffer are used in combination. When a fall accident occurs, the seat belt can firstly prevent the operator from falling, and use the joint action of the seat belt, safety rope, and metal accessories to pull the operator, so that If you do not fall, the impact force will be generated due to the quality of the human body itself and the height of the fall. The greater the mass of the human body and the greater the falling distance, the greater the impact on the human body. The important function of the seat belt is to pass through the safety Ropes, safety belts, buffers and other devices absorb the impact force, and the impact force that exceeds the limit of the impact force of the human body is passed through the tensile deformation of the safety rope, seat belt, and the deformation, friction, and destruction of the internal components of the buffer. Absorb, so that the final impact on the human body is below the safety limit, so as to protect the workers from falling and reduce the impact damage. In addition, the safety rope and waist belt of the existing electric safety belt are exposed to the outside during use, which easily affects the maintenance progress of the staff.

The invention provides an anti-drop protection device for electric power maintenance, which is comfortable in contact with the human body and has a long service life. Without affecting the maintenance progress of the staff, it solves the problem that the staff will be injured by the belt due to inertia when they accidentally fall problem, as detailed below:

1. In the present invention, the fixed ring at the upper end of the retractable belt is fixedly connected with the external safety hook. With the movement of the staff, the second pulley in the middle of the second fixed shaft rotates to retract the retractable belt. The second fixed shaft and The first clockwork spring between the second pulleys can automatically rewind the take-up and release belt under the action of elastic force, which is convenient for staff to carry out maintenance and is more convenient to use. When the staff accidentally falls, the retractable belt on the outside of the second pulley is quickly released, and at the same time, the first pulley in the middle of the first fixed shaft rotates to release the buffer belt, and the second mainspring rotates while the first pulley rotates. The spring is elastically deformed, and at the same time, the two limit grooves inside the first pulley rotate synchronously under the limit action of the limit groove. The two internal thread rings approach each other along the limit groove while rotating, and the spring is continuously compressed, so that the resistance of the internal thread ring rotation increases continuously, and then plays a buffering role in the rotation of the first pulley, preventing the staff from running at high speed. When it falls, it will be pulled by the belt due to inertia, so it is safer to use. The power inspection and protection device of the present invention can automatically rewind the take-up and release belt without affecting the inspection and maintenance of the staff, the internal structure connection is more firm, and it can also slow down the falling staff, so as to avoid the inertia caused by the staff falling at high speed. Pulled by the belt, it is safer to use.

2. The four corners of the fixing plate of the present invention are fixedly connected to the belt through rivets, the rear end of the connecting ring passes through the opening corresponding to the front end of the belt and is fixedly connected to the middle part of the fixing plate corresponding to the same side, and the lower ends of the safety rope correspond to the same side respectively The connecting ring is fixed and bolted, making the connection between the connecting ring and the belt more secure.

3. The material of the safety belt in the prior art is polyester material or nylon material. Although these materials have sufficient mechanical strength and wear resistance, they are relatively tight to people's waist, uncomfortable in contact with the human body, and heavy. bulky. The belt of the present invention includes a belt body, the belt body is covered with a coat, and the belt body is made of PBO fiber. The strength, modulus, heat resistance, aging resistance, impact resistance and friction resistance of PBO fiber It is light and soft, easy to weave, comfortable in contact with the human body, and light to wear; the inner center of the belt body is provided with a backing plate to support the waist of the staff and prevent the human body from being strangled. too tight.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is one of the plane sectional structural schematic diagrams of the belt of the present invention;

Fig. 3 is a schematic diagram of the internal sectional structure of the anti-fall box of the present invention;

Fig. 4 is a side sectional structural schematic diagram of the buffer mechanism of the present invention;

Fig. 5 is the second schematic diagram of the planar cross-sectional structure of the waist belt of the present invention.

In the figure: 1 belt, 2 connection assembly, 21 fixed plate, 22 connection ring, 3 mesh buckle, 4 backing plate, 5 anti-fall box, 6 buffer mechanism, 61 first pulley, 62 internal thread ring, 63 first Fixed shaft, 64 spring, 65 limit slot, 66 buffer belt, 7 second fixed shaft, 71 first spring, 8 second pulley, 9 retractable belt, 10 fixed ring, 11 second spring, 12 safety ropes, 13 belt body, 14 sheath.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

Please refer to Figures 1-4, this embodiment provides a technical solution: a power maintenance protection device, including a belt 1 and an anti-fall box 5;

Belt 1: The belt 1 includes the belt body 13, which is made of PBO fiber. The density of the PBO fiber is 1.54-1.55g/cm ³ , the breaking strength is 3.7-3.9N/tex, and the breaking elongation is 3-3.5 %, the moisture regain rate is 1-2%, the inner center of the belt body is provided with a backing plate 4, the left end of the belt 1 is provided with a mesh buckle 3, which is convenient for the connection and fixing of the two ends of the belt 1, and the inner center of the belt 1 There is a backing plate 4 at the place to support the waist of the staff;

Anti-falling box 5: the inner lower end is provided with a buffer mechanism 6, and the lower end of the buffer mechanism 6 is symmetrically bolted with a safety rope 12, and the lower ends of the two safety ropes 12 are respectively fixed and bolted to the connecting components 2 provided at the two ends of the waist belt 1, The connecting assembly 2 includes a fixing plate 21 and a connecting ring 22, the fixing plates 21 are all located inside the belt 1, the four corners of the fixing plate 21 are fixedly connected with the belt 1 through rivets, and the rear end of the connecting ring 22 passes through the corresponding front end of the belt 1. The opening is fixedly connected with the corresponding fixed plate 21 middle part on the same side, and the lower end of the safety rope 12 is bound and fixed on the corresponding connecting ring 22 middle part on the same side, so that the connection between the connecting ring 22 and the waist belt 1 is more firm.

The inner upper end of the anti-fall box 5 is provided with a second fixed shaft 7, and the middle part of the second fixed shaft 7 is rotatably connected with a second pulley 8, and the middle part of the outer surface of the second fixed shaft 7 is provided with a first clockwork spring 71. The outer end of a clockwork spring 71 is fixedly connected with the inner wall of the second pulley 8, the inside of the second pulley 8 is wound with a retractable belt 9, and the inner end of the retractable belt 9 is fixedly connected with the second pulley 8 , the upper end of the retractable belt 9 passes through the bar-shaped opening on the upper end of the fall prevention box 5 and is provided with a fixing ring 10 at the end. When overhauling at high altitude, the fixing ring 10 at the upper end of the retractable belt 9 is fixedly connected with the external safety hook , as the staff moves, the second pulley 8 in the middle of the second fixed shaft 7 rotates to retract the retractable belt 9, and the first clockwork spring 71 between the second fixed shaft 7 and the second pulley 8 Under the action of elastic force, the take-up and release belt 9 can be automatically rewound, which is convenient for staff to carry out maintenance.

The buffer mechanism 6 includes a first pulley 61, a first fixed shaft 63 and a buffer belt 66. The first fixed shaft 63 is arranged at the inner lower end of the anti-fall box 5, and the middle part of the first fixed shaft 63 is rotatably connected with the first pulley 61. , the outer surface of the first fixed shaft 63 is left and right symmetrically provided with the second clockwork spring 11, and the outer end of the second clockwork spring 11 is fixedly connected with the groove inner wall of the inner arc surface of the first pulley 61, and the first belt pulley The inside of the wheel 61 is wound with a buffer belt 66, the inner end of the buffer belt 66 is fixedly connected with the first pulley 61, and the lower end of the buffer belt 66 passes through the bar-shaped groove at the lower end of the anti-fall box 5 and is symmetrically bolted at the end. There is a safety rope 12, and the internal groove of the first pulley 61 is symmetrically slidably connected with an internal thread ring 62, and the two internal thread rings 62 are fixedly connected by a spring 64 movably sleeved in the middle of the first fixed shaft 63. The middle part of the fixed shaft 63 is left and right symmetrically provided with threaded teeth that are threadedly connected with the internally threaded ring 62. The threaded threads at the left and right ends of the first fixed shaft 63 are in opposite directions. Bit groove 65, the outer surface of internally threaded ring 62 is evenly provided with the limit projection that is slidably connected with limit groove 65, and when the staff accidentally drops, the retractable belt 9 on the outside of the second pulley 8 is put away quickly, and simultaneously The first belt pulley 61 in the middle part of the first fixed shaft 63 rotates so that the buffer belt 66 is put out. When the first belt pulley 61 rotates, the second clockwork spring 11 is elastically deformed. The two limit slots 65 inside the pulley 61 rotate synchronously, because the internally threaded ring 62 is connected with the left and right symmetrically arranged threads in the middle of the first fixed shaft 63, so the two internally threaded rings 62 rotate along the limit position. The grooves 65 are close to each other, and the spring 64 is continuously compressed, so that the resistance to the rotation of the internal thread ring 62 is continuously increased, and then the rotation of the first pulley 61 is buffered to prevent the staff from being caught by the belt due to inertia when falling at high speed. 1 strain.

The working principle of a protective device for electric power maintenance provided by the present invention is as follows: the worker wraps the belt 1 around the waist, and then inserts the end of the belt 1 into the interior of the mesh buckle 3 to connect the end of the belt 1 Fixed, then two safety ropes 12 at the lower end of the buffer belt 66 are fixedly bolted to the corresponding connecting ring 22 on the same side, and when overhauling at high altitude, the fixed ring 10 at the upper end of the retractable belt 9 is fixedly connected with the external safety hook, along with The movement of the staff, the second pulley 8 in the middle of the second fixed shaft 7 rotates to retract the retractable belt 9, and the first clockwork spring 71 between the second fixed shaft 7 and the second pulley 8 acts on the elastic force. The retractable belt 9 can be automatically rewound, which is convenient for the staff to carry out maintenance; when the staff accidentally drops, the retractable belt 9 on the outside of the second pulley 8 is quickly released, and the first fixed shaft 63 middle part A pulley 61 rotates to make the buffer belt 66 outside. When the first pulley 61 rotates, the second clockwork spring 11 is elastically deformed. The limit groove 65 rotates synchronously, because the inner thread ring 62 is connected with the left and right symmetrical screw threads in the middle of the first fixed shaft 63, so the two inner thread rings 62 approach each other along the limit groove 65 while rotating, and the spring 64 is pressed Continuous compression, so that the resistance to the rotation of the internal thread ring 62 increases continuously, and then plays a buffering role in the rotation of the first pulley 61, preventing the staff from being pulled by the belt 1 due to inertia when the staff falls at a high speed, and at the same time the back of the belt 1 The backing plate 4 at the end can support the waist of the staff, making it safer to use.

Example 2

This embodiment of the power maintenance protection device is basically the same as that of Embodiment 1, and the similarities will not be repeated. Some differences are: referring to Figure 5, the belt 1 includes a belt body 13, which is made of PBO fiber, and the inside of the belt body The backing plate 4 is arranged in the center, and the outer periphery of the belt body 13 is covered with a sheath 14. The material of the sheath is moisture-proof silk thread. The moisture-proof silk thread is soft and elastic, wear-resistant, light in weight, high in tensile strength, good in heat resistance, and insulating. With excellent performance, it can protect the belt body and further improve the comfort of the belt in contact with the human body.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of the present invention in the same way.

Claims (3)

1. A protective device for electric power maintenance, characterized in that it includes a belt (1) and an anti-fall box (5); Belt (1): a mesh buckle (3) is provided at the left end of the belt (1); Anti-falling box (5): the inner lower end is provided with a buffer mechanism (6), and the lower end of the buffer mechanism (6) is symmetrically bolted with a safety rope (12), and the lower ends of the two safety ropes (12) are connected with the waist belt (1) respectively. The connecting components (2) set correspondingly at both ends are fixed and bolted; The buffer mechanism (6) includes a first pulley (61), a first fixed shaft (63) and a buffer belt (66), and the first fixed shaft (63) is arranged at the inner lower end of the anti-fall box (5) , the middle part of the first fixed shaft (63) is rotatably connected with a first pulley (61), and the outer surface of the first fixed shaft (63) is left and right symmetrically provided with a second clockwork spring (11), and the second clockwork spring ( 11) The outer end of the first pulley (61) is fixedly connected to the inner wall of the groove on the inner arc surface, and the inside of the first pulley (61) is wound with a buffer belt (66), and the inner end of the buffer belt (66) The head is fixedly connected with the first pulley (61), and the lower end of the buffer belt (66) passes through the strip groove at the lower end of the anti-fall box (5) and is symmetrically bolted with a safety rope (12) at the end; The inner upper end of the anti-fall box (5) is provided with a second fixed shaft (7), and the middle part of the second fixed shaft (7) is rotatably connected with a second pulley (8), and the outer part of the second fixed shaft (7) The middle part of the side is provided with a first clockwork spring (71), the outer end of the first clockwork spring (71) is fixedly connected with the inner wall of the second pulley (8), and the inside of the second pulley (8) is wound with a Unwind the belt (9), the inner end of the retractable belt (9) is fixedly connected with the second pulley (8), the upper end of the retractable belt (9) passes through the bar-shaped opening on the upper end of the anti-fall box (5) and A fixing ring (10) is provided at the end; The inner groove of the first pulley (61) is symmetrically slidably connected with an internal thread ring (62), and the spring ( 64) Fixed connection, the middle part of the first fixed shaft (63) is symmetrically provided with threaded teeth that are threaded with the internal thread ring (62); The screw thread directions at the left and right ends of the first fixed shaft (63) are opposite; A limit groove (65) is evenly provided in the groove provided on the inner arc surface of the first pulley (61), and a limit protrusion is evenly provided on the outer surface of the inner threaded ring (62) to slide and connect with the limit groove (65). piece. 2. The protection device for power maintenance according to claim 1, characterized in that, the connection assembly (2) includes a fixing plate (21) and a connecting ring (22), and the fixing plate (21) is located on the belt Inside (1), the four corners of the fixing plate (21) are fixedly connected to the belt (1) through rivets, and the rear end of the connecting ring (22) passes through the opening corresponding to the front end of the belt (1) and is fixed to the corresponding opening on the same side. The middle part of the plate (21) is fixedly connected, and the lower end of the safety rope (12) is bound and fixed in the middle part of the corresponding connecting ring (22) on the same side. 3. A protection device for electric power maintenance according to claim 1 or 2, characterized in that, the belt (1) includes a belt body (13), and the belt body (13) is made of PBO fiber, the A backing plate (4) is arranged in the center of the waist belt body.

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