CN210228928U - Special back protection device of overhead earth wire reinforcement - Google Patents
Special back protection device of overhead earth wire reinforcement Download PDFInfo
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- CN210228928U CN210228928U CN201920518751.0U CN201920518751U CN210228928U CN 210228928 U CN210228928 U CN 210228928U CN 201920518751 U CN201920518751 U CN 201920518751U CN 210228928 U CN210228928 U CN 210228928U
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Abstract
The utility model discloses a special back protection device for overhead ground wire reinforcement, which comprises a pulley and an insulating protection rope, wherein one end of the insulating protection rope is connected with a bearing hook, and the bearing hook is fastened on the personal safety belt of an operator; the other end of the insulation protection rope is connected with a movable wedge-shaped U ring, and the movable wedge-shaped U ring is connected with the first fixed pin shaft and is screwed down by a nut; two ends of the first fixed pin shaft are respectively connected with a fixed support and a fixed pulley opening support, and an opening movable pin shaft is connected to the fixed pulley opening support; a connecting shaft for installing a pulley is arranged between the fixed support and the fixed pulley opening support, and the pulley is wound on the overhead ground wire. This special back protection device of overhead earth wire reinforcement makes high altitude reinforcement earth wire safety, effectual obtaining the guarantee, guarantees that personnel reduce the distance of falling in the process of falling, ensures personnel's safe operation.
Description
Technical Field
The utility model relates to an utensil technical field is maintained in the overhead earth wire maintenance, especially relates to a special back protection device of overhead earth wire reinforcement.
Background
In recent years, with the common application of galvanized steel strands and aluminum-clad steel strands on overhead ground wires of power transmission lines with voltage levels of 500kV and above, broken strands of the ground wires become the most important defect and fault in operation and maintenance, damage treatment is performed on the overhead ground wires, the operation difficulty is high, operating personnel lack powerful support points on the wires and the ground wires are easy to break off, so that the risk of personnel falling is caused.
According to the traditional operation mode, a plurality of insulating ropes with certain lengths are butted or cut to connect an operator and a wire end to serve as the back protection of the operator according to the terrain. The defects of the method are as follows: when the local line is broken, the personnel fall, and the hanging point of the back protection rope on the lead is taken as a central point to do free falling motion with the arc radius. Therefore, the falling height is 2 times of the distance between the back protection rope and the lead, which is enough to cause personal injury or overlarge impact force to cause personal casualty. Even when the working point with the close wire-to-ground distance falls in some places, the distance between the wire and the ground is smaller than that of the back protection rope of the person, and the person falls to the ground to cause casualties.
The operation method for eliminating the shortage of the ground wire by utilizing the overhead ground wire flying vehicle is an overhead maintenance operation with highest danger and low safety coefficient in the power industry at present. The current safest method is to power off, remove the old ground wire and erect the new ground wire at the same time, and then recover the running state. However, the power failure time of the people is long, and the industrial and agricultural production is seriously influenced.
With the progress of science and technology, an operation mode of 'curtain method' defect elimination and maintenance of an overhead ground wire is provided, but the defect exists in the operation of uninterrupted maintenance of a high-voltage line, and the defects are that the structure is complex, the operation is inconvenient, and great potential safety hazards exist in electrified operation. In addition, the operation mode is easy to abrade the ground wire, and is certainly an unselectable mode for the overhead ground wire exposed to the field for a long time.
Therefore, a special tool for solving the defects existing in the existing overhead ground wire reinforcement needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a special back protection device of overhead ground wire reinforcement to solve the problem that above-mentioned prior art exists, make high altitude reinforcement ground wire safety, effectual obtaining guarantee, guarantee personnel reduce the distance of falling in the process of falling, ensure personnel's safe operation.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a special back protection device for overhead ground wire reinforcement, which comprises a pulley and an insulating protection rope, wherein one end of the insulating protection rope is connected with a bearing hook, and the bearing hook is fastened on a personal safety belt of an operator; the other end of the insulation protection rope is connected with a movable wedge-shaped U ring, and the movable wedge-shaped U ring is connected with the first fixed pin shaft and is screwed down by a nut; two ends of the first fixed pin shaft are respectively connected with a fixed support and a fixed pulley opening support, and an opening movable pin shaft is connected to the fixed pulley opening support; and a connecting shaft for mounting the pulley is arranged between the fixed support and the fixed pulley opening support, and the pulley is wound on the overhead ground wire.
Preferably, the bearing hook is further provided with a locking buckle, and the bearing hook is fastened on a personal safety belt of an operator and locked by the locking buckle.
Preferably, the other end between the fixed pulley opening support and the fixing is also connected with a second fixed pin shaft.
Preferably, the outer side of the pulley is connected with a pulley locking clamp, and the pulley locking clamp is connected with the fixed support and has a certain gap distance with the pulley.
The utility model discloses for prior art gain following technological effect:
the utility model provides a special back protection device of overhead earth wire reinforcement, simple structure, installation are simple and easy, easy operation, the requirement of overhead earth wire large-span, remote repair operation can be satisfied to the safety protection coefficient height, make the operation personnel can play the specialized tool of protection in the high altitude of ground wire repair, provide strong guarantee and technical support for maintaining good transmission line safety and stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Figure 1 is a front view of a back protection device;
figure 2 is a side view of the back protection device;
figure 3 is a schematic view of the mounting of the back protection device;
FIG. 4 is a force exploded view of the pulley;
wherein, 1 insulating protective rope; 2, a pulley; 3, a movable wedge-shaped U ring; 4, a load-bearing hook; 5, locking buckles; 6, fixing a first pin shaft; 7, a nut; 8 fixing a pulley opening bracket; 9, opening a movable pin shaft; 10 fixing a second pin shaft; 11 fixing the bracket; 12, a pulley locking clamp; 13 an operator; 14 pulling the rope.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a special back protection device of overhead ground wire reinforcement to solve the problem that above-mentioned prior art exists, make high altitude reinforcement ground wire safety, effectual obtaining guarantee, guarantee personnel reduce the distance of falling in the process of falling, ensure personnel's safe operation.
Based on the structure, the utility model provides a special back protection device for overhead ground wire reinforcement, including a pulley and an insulating protection rope, wherein one end of the insulating protection rope is connected with a bearing hook, and the bearing hook is fastened on the personal safety belt of the operator; the other end of the insulation protection rope is connected with a movable wedge-shaped U ring, and the movable wedge-shaped U ring is connected with the first fixed pin shaft and is screwed down by a nut; two ends of the first fixed pin shaft are respectively connected with a fixed support and a fixed pulley opening support, and an opening movable pin shaft is connected to the fixed pulley opening support; a connecting shaft for installing a pulley is arranged between the fixed support and the fixed pulley opening support, and the pulley is wound on the overhead ground wire.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to figures 1-4, wherein figure 1 is a front view of the back protection device; figure 2 is a side view of the back protection device; figure 3 is a schematic view of the mounting of the back protection device; fig. 4 is a force exploded view of the pulley.
As shown in fig. 1-4, the utility model provides a special back protection device for overhead ground wire reinforcement, which comprises an insulating protection rope 1; a pulley 2; a movable wedge U-shaped ring 3; a bearing hook 4; a locking buckle 5; a first fixed pin shaft 6; a nut 7; a fixed pulley opening bracket 8; a movable pin shaft 9 is opened; a second fixed pin shaft 10; a fixed bracket 11; a pulley latching clip 12. One end of the insulating protection rope 1 is connected with a bearing hook 4; the bearing hook 4 is buckled on a personal safety belt of an operator 13 and is locked by the locking buckle 5, and a traction rope 14 also hangs downwards on the body of the operator 13; in addition, one end of the insulation protection rope 1 is connected with a movable wedge-shaped U ring 3; the movable wedge-shaped U ring 3 is connected with the fixed pin shaft 6 and is screwed down by a nut 7 to be placed and fall off; one end of the first fixed pin shaft 6 is connected with the fixed support 11, and the other end of the first fixed pin shaft is connected with the fixed pulley opening support 8; the fixed pulley opening bracket 8 is connected with an opening movable pin shaft 9, and the effect achieved by the fixed pulley opening bracket is opening and locking; the fixed pulley opening bracket 8 and the fixed bracket 11 are connected with the pulley 2; the pulley 2 is connected with a pulley locking clamp 12, and the two are mutually matched for use. When the pulley 2 bears vertical downward gravity, force is transmitted to the pulley locking clamp 12 instantly, the pulley locking clamp 12 sends an instruction to lock the pulley 2 in time, the pulley 2 is prevented from sliding continuously, and the operation safety of ground wire defect elimination maintenance of overhead ground wire reinforcement personnel is guaranteed.
The lower ends of the fixed pulley opening bracket 8 and the fixed bracket 11 are also connected with a second fixed pin shaft 10; the main function is to balance the fixed pulley opening bracket 8 and the fixed bracket 11 and prevent the pulley from running off.
The pulley locking clamp 12 is connected with the pulley 2, when the pulley 2 slides down too fast, the pulley locking clamp 12 sends an instruction to stop the pulley 2 to rotate as long as the pulley is subjected to external impact force, and when the external impact force is eliminated, the pulley starts to rotate again. Similarly, when a reinforcing operator falls off or carelessly falls off underground at a reinforcing operation position, the pulley 2 is impacted, information can be transmitted to the pulley locking clamp 12, the pulley locking clamp 12 immediately sends an instruction to lock the pulley 2, after the operator is rescued, the gravity borne by the pulley 2 is relieved, the pulley 2 can rotate freely, the risk of falling of the operator is protected, and the normal operation of the tool can be ensured.
The utility model discloses for prior art gain following technological effect:
the utility model provides a pair of special back protection device of overhead earth wire reinforcement, through when the operation of disappearing such as reinforcing at overhead earth wire reinforcement or ground wire joint, will the utility model discloses connect at operation personnel 13 and be on a parallel with another overhead earth wire position of operation ground wire. When an operator suddenly drops, the safety belt on the operator pulls the insulating protection rope 1 downwards, the insulating protection rope 1 enables the pulley 2 to rapidly have a downward force under the action of impact load, information can be transmitted to the pulley locking clamp 12, the pulley locking clamp 12 immediately sends out an instruction to drive the inner-periphery convex surface of the pulley 2, and the inner-periphery convex surface and the pulley 2 form a relative reaction force. Along with the falling movement of the gravity acceleration, the fixed brackets 11 at the two ends of the pulley 2 tightly push the pulley locking clamp 12, and the friction force between the pulley locking clamps 12 at the two ends and the pulley 2 arranged in the gap between the two ends is increased instantly. If the friction force of the pulley locking clamp 12 is larger than the gravity of an operator, the pulley 2 can be locked on the overhead ground wire after sliding down for a certain distance, and self-locking is realized. After the person is rescued, the insulation protection rope 1 on the falling person is released, the friction force between the locking clamps at the two ends of the pulley and the pulley 2 arranged in the gap between the locking clamps and the pulley is reduced, and the pulley 2 can rotate freely. On the premise of ensuring the personal safety of operators on the overhead ground wire to the maximum extent, the ground wire repairing work is rapidly, accurately and efficiently carried out, the high falling caused by the overhead ground wire repairing or joint reinforcing and the front conflict with the complex operation procedures are avoided, and meanwhile, the effects of reducing the labor intensity of the operators and ensuring the safe operation of a power grid and the personal operation safety are achieved.
This special back protection device of overhead earth wire reinforcement can satisfy the characteristics of overhead earth wire reinforcement large-span, remote repair simultaneously, according to the ground wire repair and the reinforcement of operation point topography height difference journey degree difference, has improved the utility model discloses an on-the-spot suitability.
Further, the utility model discloses can guarantee that the operation personnel is taking place under the condition of falling to pulley 2 is the motion of freely falling of circular arc radius as the center, reduces the height of falling. Meanwhile, under the cooperation of the pulley locking clamp 12, when the pulley 2 is impacted by falling of a person, the pulley stops rotating (self-locking) and is locked at a certain position to prevent secondary damage; after rescuing the personnel that fall, the power that the pulley received is eliminated, and the pulley begins to rotate again, still can with the utility model discloses withdraw ground wire cross arm department, strengthened the utility model discloses a last working ability.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. The utility model provides a special back protection device of overhead earth wire reinforcement which characterized in that: the safety belt comprises a pulley and an insulating protection rope, wherein one end of the insulating protection rope is connected with a bearing hook, and the bearing hook is fastened on a personal safety belt of an operator; the other end of the insulation protection rope is connected with a movable wedge-shaped U ring, and the movable wedge-shaped U ring is connected with the first fixed pin shaft and is screwed down by a nut; two ends of the first fixed pin shaft are respectively connected with a fixed support and a fixed pulley opening support, and an opening movable pin shaft is connected to the fixed pulley opening support; and a connecting shaft for mounting the pulley is arranged between the fixed support and the fixed pulley opening support, and the pulley is wound on the overhead ground wire.
2. The special back protection device for overhead ground wire reinforcement according to claim 1, characterized in that: the bearing hook is further provided with a locking buckle, and the bearing hook is fastened on a personal safety belt of an operator and locked by the locking buckle.
3. The special back protection device for overhead ground wire reinforcement according to claim 1, characterized in that: the other end between fixed pulley opening support and the fixed still is connected and is provided with fixed pin axle.
4. The special back protection device for overhead ground wire reinforcement according to claim 1, characterized in that: the outer side of the pulley is connected with a pulley locking clamp, and the pulley locking clamp is connected with the fixed support and has a certain gap distance with the pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518751.0U CN210228928U (en) | 2019-04-17 | 2019-04-17 | Special back protection device of overhead earth wire reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518751.0U CN210228928U (en) | 2019-04-17 | 2019-04-17 | Special back protection device of overhead earth wire reinforcement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210228928U true CN210228928U (en) | 2020-04-03 |
Family
ID=69968728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920518751.0U Active CN210228928U (en) | 2019-04-17 | 2019-04-17 | Special back protection device of overhead earth wire reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210228928U (en) |
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2019
- 2019-04-17 CN CN201920518751.0U patent/CN210228928U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yunnan Yinghao Technology Co.,Ltd. Assignor: CSG EHV TRANSMISSION COMPANY BOSE BUREAU Contract record no.: X2023990000196 Denomination of utility model: A special back protection device for reinforcement of overhead ground wire Granted publication date: 20200403 License type: Common License Record date: 20230209 |
|
| EE01 | Entry into force of recordation of patent licensing contract |