CN215378726U - High-voltage cable intermediate head protection device for bypass operation - Google Patents
High-voltage cable intermediate head protection device for bypass operation Download PDFInfo
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- CN215378726U CN215378726U CN202121777984.6U CN202121777984U CN215378726U CN 215378726 U CN215378726 U CN 215378726U CN 202121777984 U CN202121777984 U CN 202121777984U CN 215378726 U CN215378726 U CN 215378726U
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Abstract
The utility model discloses a high-voltage cable intermediate joint protection device for bypass operation, which comprises an upper box body and a lower box body which are hinged, and is characterized in that: go up box, lower box lid and form the protection box that is used for protecting intermediate head after closing, be formed with a plurality of through wires holes on two sides that the protection box corresponds, it is fixed with flexible inner panel to go up box, lower box internal correspondence, sets up cable junction in the protection box, and the interference fit that the lock box passes through cable joint and flexible inner panel seals cable junction, avoids irrelevant operation personnel to pull out and inserts the cable, prevents that dust, rainwater and winged insect from getting into hookup location, and can prevent to connect and the better protection of box damage, sets up the induced voltage that produces on the metal box when earth bolt eliminates high-voltage operation, has improved live working security.
Description
Technical Field
The utility model relates to the field of power equipment, in particular to a high-voltage cable intermediate joint protection device for bypass operation.
Background
The safe operation of electric power is an important factor for ensuring national economic safety and social stability. The improvement of power supply reliability and the reduction of power failure are necessary requirements for normal development of national economy, so that live working is more and more important in detection and maintenance of current power transmission and distribution equipment.
Live working is a working method for overhauling a power line and equipment without power failure. The principle is that after a new branch is established by connecting a group of bypass cables in parallel in a circuit, a part to be operated is disconnected, the new branch supplies power normally, the operation part is connected back after the operation is completed, the new branch is disconnected and removed, and the old branch continues to supply power. In some cases, in actual operation, two access points of a bypass cable are far away from each other, the length of the required cable is long, but the problems that the transportation, the winding and unwinding, the storage and the like of the overlong cable are difficult exist, and the operation is usually completed by connecting a plurality of cables with conventional lengths in series through an intermediate connector at present. And the junction of cable joint and intermediate head is comparatively weak part among the cable run, and live working generally goes on outdoors, and joint department can receive external factors's influences such as rainwater, dust, irrelevant operation personnel, in case break down in the work progress, easily takes place conflagration, explosion accident, not only causes the operation line to have a power failure, still can harm personal safety. The intermediate joint protection device used in the bypass operation at present is not popular enough, and is relatively blank to the joint protection device who is applicable to the high-pressure operating mode, and the cable joint protection device who is applicable to low pressure bypass operation on the market can't eliminate the induced voltage of production on the box during high-pressure operation, has the potential safety hazard under the high-pressure operating mode.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above problems, the present invention adopts the following technical solutions.
The utility model provides a high tension cable intermediate head protection device for bypass operation, includes articulated last box, lower box that sets up, its characterized in that: the upper box body and the lower box body are covered to form a protective box body for protecting the intermediate joint, a plurality of threading holes are formed on two corresponding side surfaces of the protective box body, flexible inner plates are correspondingly fixed in the upper box body and the lower box body, the flexible inner plates are attached to the inner walls of the upper box body and the lower box body, the flexible inner plate is provided with a plurality of flexible clapboards which divide the flexible inner plate into a plurality of joint protection channels corresponding to the threading holes, the middle joint is arranged in the joint protection channels, the flexible inner plate is provided with a wire outlet hole groove edge which is clamped on the corner of the threading hole, the cable connectors connected with the two ends of the intermediate connector penetrate through the threading hole and are sealed and fixed by the flexible inner plate, the flexible inner plate is provided with a hollow hole for the contact between the intermediate joint and the protection box body, and the protection box body is provided with a grounding bolt.
Furthermore, one side of the upper box body and one side of the lower box body are hinged, and the other side, corresponding to the hinged side, of the upper box body and the lower box body is fixed through a lock catch.
The lock catch adopts the existing common structure, and the connecting mode of the lock catch and the protective box body also adopts the existing structure, so that the upper box body and the lower box body can be conveniently opened and closed.
Further, a handle is arranged on the protection box body.
The handle adopts current structure, and its connected mode with the protection box also adopts current structure, and convenient better transport protection box, it is more convenient to transport.
Furthermore, the diameter of the cable joint from the threading hole to the joint with the middle joint is gradually increased, and the diameter of the threading hole is smaller than the maximum diameter of the cable joint in the protection box body.
Go up box, lower box closed locking back cable junction part and can't be taken out by the protection in the box, can avoid irrelevant operation personnel to pull out the cable junction position after the box lock locking and insert, reduce accident potential.
Furthermore, the two ends of the flexible inner plate are clamped and fixed with the clamping fins on the protection box body through the partition plate grooves, so that the flexible inner plate can be assembled and disassembled better.
Further, the hollowed-out hole is the rectangular hole that corresponds with the intermediate head, and the length of rectangular hole is greater than the length of intermediate head, makes things convenient for the intermediate head to adjust the position in the protection box, and it is more convenient to use.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) the threading hole is sealed by the flexible inner plate, so that dust, rainwater and winged insects can be effectively prevented from entering the connecting position, the sealing property of the connection between the protective box body and the cable joint is improved, and the intermediate joint can be better protected;
(2) the flexible inner plate can well separate each group of intermediate joints and cable joints, can prevent collision damage among the joints and between the joints and the protective box body, and can better protect the intermediate joints and the cable joints;
(3) according to the utility model, the middle box body is in contact with the protection box body, and the grounding bolt is arranged on the protection box body, so that the induced voltage generated on the metal box body during high-voltage operation can be eliminated, and the safety of live-wire operation is improved;
(4) the utility model adopts the structural arrangement of the flexible inner plate, so that the structure of the protective box body is simpler, and the manufacturing of the protective box body is more facilitated.
Drawings
FIG. 1 is a schematic three-dimensional structure of the present invention in an unfolded state;
FIG. 2 is a schematic three-dimensional structure of the present invention in a closed state;
FIG. 3 is a schematic view of the flexible inner panel construction of the present invention;
description of reference numerals: 1-upper box body, 2-handle, 3-flexible inner plate, 301-flexible baffle, 302-wire outlet hole groove edge, 303-hollow hole, 304-baffle groove, 305-arc binding surface, 4-cable joint, 5-middle joint, 6-grounding bolt, 7-lower box body and 8-lock catch.
Detailed Description
The utility model is further described with reference to specific embodiments and the accompanying drawings.
Example 1
As shown in fig. 1-3: the embodiment provides a high tension cable intermediate head protection device for bypass operation, including articulated last box 1, lower box 7 that sets up, its characterized in that: the upper box body 1 and the lower box body 7 are covered to form a protective box body for protecting the intermediate joint 5, a plurality of threading holes are formed on two corresponding side surfaces of the protective box body, flexible inner plates 3 are correspondingly fixed in the upper box body 1 and the lower box body 7, the flexible inner plates 3 are attached to the inner walls of the upper box body 1 and the lower box body 7, a plurality of flexible partition plates 301 are arranged on the flexible inner plates 3, the flexible inner plates 3 are divided into a plurality of joint protection channels corresponding to the threading holes by the flexible partition plates 301, the intermediate joint 5 is arranged in the joint protection channels, wire outlet groove edges 302 clamped on the corners of the threading holes are formed on the flexible inner plates 3, the clamping structure connection mode of the wire outlet groove edges 302 and the corners of the threading holes adopts the existing connection mode which is well known by technicians in the field and is not described in detail herein, and arc-shaped attaching surfaces 305 corresponding to the cable joints 4 are formed on the wire outlet groove edges 302, cable joint 4 that 5 both ends of intermediate head are connected passes through the through wires hole and seals fixedly through flexible inner panel 3, and after the lock, cable joint 4 closely laminates sealedly with wire hole groove limit 302, be formed with the fretwork hole 303 that is used for supplying intermediate head 5 and protection box contact on the flexible inner panel 3, be provided with earth bolt 6 on the protection box, flexible inner panel 3 is the flexible material preparation of current insulation.
One side of the upper box body 1 and one side of the lower box body 7 are hinged, and the other side, corresponding to the hinged side, of the upper box body 1 and the lower box body 7 is fixed through a lock catch 8. The lock catch 8 adopts the existing common structure, and the connecting mode of the lock catch and the protective box body also adopts the existing structure, so that the upper box body 1 and the lower box body 7 can be conveniently opened and closed.
The protective box body is provided with a handle 2. Handle 2 adopts current structure, and its connected mode with the protection box also adopts current structure, and convenient better transport protection box, it is more convenient to transport.
The diameter of the cable joint 4 from the threading hole to the joint with the middle joint 5 is gradually increased, and the diameter of the threading hole is smaller than the maximum diameter of the cable joint 4 in the protective box body. Go up box, lower box closed locking back cable junction part and can't be taken out by the protection in the box, can avoid irrelevant operation personnel to pull out the cable junction position after the box lock locking and insert, reduce accident potential.
The two ends of the flexible inner plate 3 are clamped and fixed with clamping fins on the protective box body through the partition plate grooves 304, so that the flexible inner plate 3 can be assembled and disassembled better, and the structures of the partition plate grooves 304 and the clamping fins adopt the existing structures well known by the technical personnel in the field, and are not described in detail herein.
The hollowed-out hole 303 is a rectangular hole corresponding to the intermediate joint 5, the length of the rectangular hole is larger than that of the intermediate joint, the position of the intermediate joint can be adjusted in the protective box conveniently, and the use is more convenient.
The threading hole of the embodiment is sealed by the flexible inner plate, so that dust, rainwater and winged insects can be effectively prevented from entering the connecting position, the sealing property of the connection between the protection box body and the cable joint is improved, and the intermediate joint can be better protected;
the flexible inner plate can well separate each group of intermediate joints from cable joints, can prevent collision and damage among the joints and between the joints and the protective box body, and can better protect the intermediate joints and the cable joints;
the middle box body is in contact with the protection box body, and the grounding bolt is arranged on the protection box body, so that the induced voltage generated on the metal box body during high-voltage operation can be eliminated, and the safety of live-wire operation is improved;
this embodiment adopts the structural setting of flexible inner panel, can make the structure of protection box simpler, more is favorable to the manufacturing of protection box.
Example 2
This embodiment provides a high tension cable intermediate head protection device for bypass operation, does further improvement on embodiment 1's basis, go up box 1, the articulated setting in one side of lower box 7, go up box 1, the opposite side that corresponds with articulated side on the lower box 7 and adopt two built-in magnet to inhale fixedly, open, closed more convenient, the appearance is more pleasing to the eye moreover.
Example 3
The present embodiment is different from embodiment 1 in that a handle is not provided to a protection box body of the present embodiment.
Example 4
This embodiment provides a high tension cable intermediate head protection device for bypass operation, and this implementation is to make further improvement on embodiment 1's basis, go up flexible inner panel 3 in box 1, the lower box 7 and all be formed with the semicircle type recess that corresponds with cable joint, two semicircle type recess lids close the back, can realize the sealed to cable joint.
Example 5
The present embodiment provides a high-voltage cable intermediate head protection device for bypass operation, and the difference between the present embodiment and embodiment 1 lies in that the flexible inner plate 3 of the present embodiment does not have a surface attached to the bottom wall of the upper box 1 and the bottom wall of the lower box 7, and can also achieve corresponding functions, and save more materials.
Example 6
This embodiment provides a high tension cable intermediate head protection device for bypass operation, and this implementation is further improved on the basis of embodiment 1, and the last box 1 of this example, lower box 7 all adopt stainless steel matter to make, and corrosion resistance is better, and life is longer.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a high tension cable intermediate head protection device for bypass operation, includes articulated last box (1), lower box (7) that set up, its characterized in that: the cable connector protection box is characterized in that a protection box body used for protecting an intermediate connector (5) is formed after the upper box body (1) and the lower box body (7) are covered, a plurality of threading holes are formed on two corresponding side surfaces of the protection box body, flexible inner plates (3) are correspondingly fixed in the upper box body (1) and the lower box body (7), the flexible inner plates (3) are attached to the inner walls of the upper box body (1) and the lower box body (7), a plurality of flexible partition plates (301) are arranged on the flexible inner plates (3), the flexible inner plates (3) are divided into a plurality of connector protection channels corresponding to the threading holes by the flexible partition plates (301), the intermediate connector (5) is arranged in the connector protection channels, wire outlet groove edges (302) clamped on corner corners of the threading holes are formed on the flexible inner plates (3), cable connectors (4) connected with two ends of the intermediate connector (5) penetrate through the threading holes and are sealed and fixed through the flexible inner plates (3), the flexible inner plate (3) is provided with a hollow hole (303) for the contact between the intermediate joint (5) and the protection box body, and the protection box body is provided with a grounding bolt (6).
2. The apparatus for protecting the intermediate joint of a high-voltage cable for bypass operation as claimed in claim 1, wherein: one side of the upper box body (1) and one side of the lower box body (7) are hinged, and the other side, corresponding to the hinged side, of the upper box body (1) and the lower box body (7) is fixed through a lock catch (8).
3. The apparatus for protecting the intermediate joint of a high-voltage cable for bypass operation as claimed in claim 1, wherein: the protection box body is provided with a handle (2).
4. The apparatus for protecting the intermediate joint of a high-voltage cable for bypass operation as claimed in claim 1, wherein: the diameter of the cable joint (4) from the threading hole to the joint with the intermediate joint (5) is gradually increased, and the diameter of the threading hole is smaller than the maximum diameter of the cable joint (4) in the protective box.
5. The apparatus for protecting the intermediate joint of a high-voltage cable for bypass operation as claimed in claim 1, wherein: and the two ends of the flexible inner plate (3) are clamped and fixed with clamping fins on the protective box body through the partition plate grooves (304).
6. The apparatus for protecting the intermediate joint of a high-voltage cable for bypass operation as claimed in claim 1, wherein: the hollow hole (303) is a rectangular hole corresponding to the intermediate joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121777984.6U CN215378726U (en) | 2021-08-02 | 2021-08-02 | High-voltage cable intermediate head protection device for bypass operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121777984.6U CN215378726U (en) | 2021-08-02 | 2021-08-02 | High-voltage cable intermediate head protection device for bypass operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215378726U true CN215378726U (en) | 2021-12-31 |
Family
ID=79613786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121777984.6U Active CN215378726U (en) | 2021-08-02 | 2021-08-02 | High-voltage cable intermediate head protection device for bypass operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215378726U (en) |
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2021
- 2021-08-02 CN CN202121777984.6U patent/CN215378726U/en active Active
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