CN218040420U

CN218040420U - Small bus quick connecting device for changing protection screen of transformer substation

Info

Publication number: CN218040420U
Application number: CN202221913033.1U
Authority: CN
Inventors: 王玉财; 王振锋; 李志远; 李洋; 邵李斌; 郭军慷; 潘鑫; 贺雨欣
Original assignee: Ningdong Power Supply Co Of State Grid Ningxia Electric Power Co
Current assignee: Ningdong Power Supply Co Of State Grid Ningxia Electric Power Co
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-13
Anticipated expiration: 2032-07-22

Abstract

A small bus quick connecting device for replacing a protection screen of a transformer substation comprises a left clamping component, a right clamping component and a temporary connecting wire, wherein the left clamping component and the right clamping component are identical in structure, the left clamping component comprises a clamping assembly, an elastic guide assembly and a pressing assembly, one end of the clamping assembly is open, the other end of the clamping assembly is hinged, the pressing assembly comprises an upper pressing rod and a lower pressing rod, one end of the upper pressing rod is fixedly connected with the upper part, close to a hinged end, of the clamping assembly, one end of the lower pressing rod is fixedly connected with the lower part, close to the hinged end, of the clamping assembly, and the upper end and the lower end of the elastic guide assembly are respectively and correspondingly connected with the upper pressing rod and the lower pressing rod; when using, will go up simultaneously and press the depression bar, press down the depression bar extrusion, can make the centre gripping subassembly open, press the depression bar on loosening, press down behind the depression bar, can make the centre gripping subassembly closed, it is fixed with the little generating line centre gripping on two adjacent protection screens, accomplish the interim short circuit operation of little generating line fast, it is consuming time to have shortened the wiring.

Description

Small bus quick connecting device for changing protection screen of transformer substation

Technical Field

The utility model relates to a transformer substation overhauls technical field, especially relates to a transformer substation changes little generating line quick connecting device for protection screen.

Background

And the small bus of the transformer substation is positioned above the protection screens and used for providing the secondary voltage of the voltage transformer for the protection measurement and control devices in each protection screen. Usually the voltage busbars are connected together on top of a protective screen. When the protection screen needs to be replaced in a whole screen mode, the small bus needs to be cut off, and then the protection screen needing to be replaced is removed. In order to prevent the voltage loss of the protection devices in the adjacent protection screens, the small bus bars above the adjacent protection screens of the protection screens to be replaced are usually required to be temporarily shorted together by using temporary shorting wires. The mode that adopts at present is on-the-spot interim wiring usually, but the little generating line of on-the-spot interim short circuit is consuming time longer, and for electrified short circuit, has the risk of secondary voltage short circuit.

Disclosure of Invention

In order to solve the technical problems in the prior art, it is necessary to provide a quick connection device for a small bus for replacing a protection screen of a transformer substation.

The utility model provides a transformer substation changes little generating line quick connecting device for protection screen, includes left part clamping component, right part clamping component and is used for connecting the wire that faces of a clamping component, right part clamping component intercommunication, left part clamping component, right part clamping component's structure is the same, left part clamping component includes centre gripping subassembly, elastic guide subassembly, presses the subassembly, the one end of centre gripping subassembly is opened, and the other end of centre gripping subassembly is articulated, press the subassembly including last press the depression bar, press the depression bar down, it is located the top of centre gripping subassembly hinged end to go up the depression bar, goes up the one end of press the depression bar and the upper portion fixed connection that the centre gripping subassembly is close to the hinged end with the centre gripping subassembly, press the depression bar down in the below of centre gripping subassembly hinged end, press the one end of depression bar and the lower part fixed connection that the centre gripping subassembly is close to the hinged end down, the upper end and the lower extreme of elastic guide subassembly correspond respectively with last press the depression bar and lower extreme and be connected, will be pressed the depression bar, press the depression bar down simultaneously, upper and lower pole, press the depression bar, down the depression bar to move relatively, can form the extrusion to elastic guide subassembly, make the centre gripping subassembly, can loosen the centre gripping subassembly, press the backward.

Preferably, the clamping assembly comprises an upper clamping jaw and a lower clamping jaw, the upper clamping jaw and the lower clamping jaw are arranged oppositely, one end of the upper clamping jaw is hinged with one end of the lower clamping jaw on the same side, and the upper clamping jaw and the lower clamping jaw can be opened or closed.

Preferably, the upper clamping pincers and the lower clamping pincers have the same structure, each upper clamping pincers comprises an arc-shaped portion, a hinge portion and a straight portion, and the hinge portions and the straight portions are connected to the two sides of the arc-shaped portions respectively and form an integrated structure.

Preferably, the flat portion is provided with a falling-off prevention member.

Preferably, the surface of the anti-falling part is provided with a groove, and two end parts of the anti-falling part are provided with protruding stop blocks.

Preferably, the upper pressing rod and the lower pressing rod have the same structure, a guide pipe is fixedly arranged on the upper pressing rod, and the guide pipe is positioned on one side of the upper pressing rod, which is close to the upper clamping pliers.

Preferably, one end of the upper pressing rod, which is far away from the guide tube, is provided with an anti-slip sleeve.

Preferably, the elastic guide assembly comprises a guide rod and a spring, the guide rod is of an arc-shaped structure, two end portions of the guide rod are respectively inserted into guide tubes on the upper pressing rod and the lower pressing rod and are in sliding connection with the guide tubes, the spring is sleeved on the guide rod, and the two end portions of the spring are respectively in contact with the guide tubes on the upper pressing rod and the lower pressing rod.

Preferably, two end parts of the guide rod are respectively and fixedly provided with a limiting plate, and the limiting plates are positioned on one side of the guide pipe, which is far away from the spring.

According to the technical scheme, the utility model provides a little generating line quick connecting device for transformer substation replacement protection screen, including left part clamping part, right part clamping part, and be used for the adjacent wire that connects part clamping part, right part clamping part intercommunication, left part clamping part, the structure of right part clamping part is the same, left part clamping part includes the centre gripping subassembly, the elastic guide subassembly, press the subassembly, the one end of centre gripping subassembly is opened, the other end of centre gripping subassembly is articulated, press the subassembly and include last press bar, lower press bar, go up press bar and be located the top of centre gripping subassembly hinged end, the one end of going up press bar and the upper portion fixed connection that the centre gripping subassembly is close to the hinged end, lower press bar is located the below of centre gripping subassembly hinged end, the one end of lower press bar and the lower portion fixed connection that the centre gripping subassembly is close to the hinged end, the upper end and the lower end of elastic guide subassembly respectively correspond with last pole and lower press bar and be connected; the utility model discloses when using, the while is with last press the depression bar, press the depression bar extrusion down, go up press the depression bar, press the depression bar removal in opposite directions down, can form the extrusion to elasticity direction subassembly, make the centre gripping subassembly can open, thereby can conveniently get into the centre gripping subassembly with the little generating line on two adjacent protection screens of the protection screen that will demolish, press the depression bar on loosening, press down behind the depression bar down, go up press the depression bar, press down the depression bar reverse movement under elasticity direction subassembly's effect, make the centre gripping subassembly can be closed, thereby it is quick fixed with the little generating line centre gripping on two adjacent protection screens, thereby accomplish the interim short circuit operation of little generating line fast, it is consuming time to have shortened interim short circuit little generating line, the risk of secondary voltage short circuit has been reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the left clamping member of the present invention.

Fig. 3 is a schematic view of the structure of the upper clamping pliers and the upper pressing rod of the present invention.

Fig. 4 is a schematic structural view of the upper holding clamp of the present invention.

In the figure: the clamping device comprises a left clamping part 01, a clamping assembly 11, an upper clamping jaw 111, an arc-shaped part 1111, a hinge part 1112, a straight part 1113, a retaining piece 1114, a groove 1115, a convex stop 1116, a lower clamping jaw 112, an elastic guide assembly 12, a guide rod 121, a spring 122, a limiting plate 123, a pressing assembly 13, an upper pressing rod 131, a lower pressing rod 132, a guide pipe 133, an anti-skidding sleeve 134, a right clamping part 02 and an adjacent lead 03.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", "lower", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a transformer substation changes little generating line quick connecting device for protection screen, including left part clamping component 01, right part clamping component 02, face joint conductor 03 can be with a clamping component, right part clamping component 02 intercommunication. The structure that left part clamping component 01, right part clamping component 02 adopted is the same, and wherein, left part clamping component 01 includes centre gripping subassembly 11, elasticity direction subassembly 12, presses subassembly 13, and centre gripping subassembly 11's one end is opened, and centre gripping subassembly 11's the other end is articulated, makes the open one end of centre gripping subassembly 11 can freely open or close. The pressing assembly 13 includes an upper pressing rod 131 and a lower pressing rod 132, the upper pressing rod 131 is located above the hinged end of the clamping assembly 11, one end of the upper pressing rod 131 is fixedly connected to the upper portion of the clamping assembly 11 close to the hinged end, the lower pressing rod 132 is located below the hinged end of the clamping assembly 11, one end of the lower pressing rod 132 is fixedly connected to the lower portion of the clamping assembly 11 close to the hinged end, and the upper end and the lower end of the elastic guide assembly 12 are respectively connected to the upper pressing rod 131 and the lower pressing rod 132 correspondingly. When using, can be simultaneously with last press down depression bar 131, press down depression bar 132 extrusion, make and go up press down depression bar 131, press down depression bar 132 and remove in opposite directions, form the extrusion to elasticity direction subassembly 12, force elasticity direction subassembly 12 shrink, and the open one end of centre gripping subassembly 11 can open, thereby can conveniently get into centre gripping subassembly 11 with the little generating line on the adjacent two protection screens of protection screen that need demolish, press down depression bar 131 on loosening, press down behind depression bar 132, go up press down depression bar 131, press down the backward movement under elasticity direction subassembly 12's restoring force effect of pole 132 down, make the open one end of centre gripping subassembly 11 closed, it is fixed with the little generating line centre gripping on two adjacent protection screens, realize accomplishing the interim short circuit operation of little generating line fast, it is consuming time to have shortened interim short circuit little generating line greatly, the risk of secondary voltage short circuit has been reduced.

In one embodiment, the clamping assembly 11 includes an upper clamping jaw 111 and a lower clamping jaw 112, the upper clamping jaw 111 and the lower clamping jaw 112 are disposed opposite to each other, and one end of the upper clamping jaw 111 is hinged to one end of the lower clamping jaw 112 on the same side, so that the upper clamping jaw 111 and the lower clamping jaw 112 can be opened or closed. The upper and

lower clamping jaws

111, 112 have the same structure, the upper clamping jaw 111 includes an arc portion 1111, a hinge portion 1112, and a straight portion 1113, and the hinge portion 1112 and the straight portion 1113 are respectively connected to two sides of the arc portion 1111 and form an integrated structure. Wherein, go up centre gripping pincers 111, down arc portion 1111 on the centre gripping pincers 112 back to being in the same place, can form circular or oval structure, to the little generating line of circular structure, can make the outer wall formation contact of arc portion 1111 abundant and little generating line, improve area of contact greatly, can improve the steadiness of connecting the centre gripping promptly, have and to reduce the wire virtual position probability of connecting, greatly reduced the risk of secondary voltage short circuit. Wherein, be provided with anticreep spare 1114 on straight portion 1113, last centre gripping pincers 111, lower centre gripping pincers 112 are closed together, and straight portion 1113 on last centre gripping pincers 111, the lower centre gripping pincers 112 also can carry out the centre gripping to the little generating line and fix, in addition, after last centre gripping pincers 111, lower centre gripping pincers 112 are closed together, also can connect the centre gripping to platelike position, can improve the selection and connect the variety. The surface of anticreep piece 1114 is equipped with recess 1115, can improve the friction, is provided with protruding dog 1116 at two tip of anticreep piece 1114, when carrying out centre gripping fixed connection, can prevent that the position of centre gripping from breaking away from straight portion 1113, improves the steadiness of connecting greatly. After clamping and fixing, the convex stoppers 1116 on the upper clamping jaw 111 and the lower clamping jaw 112 can be aligned together, and the convex stoppers 1116 are made of copper materials, so that the upper clamping jaw 111 and the lower clamping jaw 112 form a closed loop, and the connection conduction stability is further improved.

In one embodiment, the upper pressing rod 131 and the lower pressing rod 132 have the same structure, a guide tube 133 is fixedly disposed on the upper pressing rod 131, and the guide tube 133 is located on a side of the upper pressing rod 131 close to the upper clamping jaw 111. An anti-slip sleeve 134 is disposed at one end of the upper pressing rod 131 away from the guide tube 133, so that when the upper pressing rod 131 and the lower pressing rod 132 are squeezed simultaneously, the comfort of holding the upper pressing rod 131 and the lower pressing rod 132 by a hand of a user can be improved, and slipping can be prevented.

In one embodiment, the elastic guide assembly 12 includes a guide rod 121 and a spring 122, the guide rod 121 has an arc structure, an inner hole of the guide tube 133 matches the arc structure formed by the guide rod 121, two ends of the guide rod 121 are inserted into the guide tubes 133 of the upper pressing rod 131 and the lower pressing rod 132, respectively, the guide rod 121 can slide freely in the guide tube 133, the spring 122 is sleeved on the guide rod 121, and two ends of the spring 122 are in contact with the guide tubes 133 of the upper pressing rod 131 and the lower pressing rod 132, respectively, when the upper pressing rod 131 and the lower pressing rod 132 are pressed simultaneously, the guide tube 133 presses the spring 122 to deform and contract the spring 122, and two ends of the guide rod 121 slide along the guide tube 133 to extend the two ends of the guide rod 121 to the outside of the guide tube 133, at this time, the clamping assembly 11 will expand, after the upper pressing rod 131 and the lower pressing rod 132 are released, the spring 122 will recover to push against the upper pressing rod 131 and the lower pressing rod 132 to move, so that the clamping assembly 11 is closed, and the bus can be fixed.

In one embodiment, two end portions of the guide rod 121 are respectively fixedly provided with a position limiting plate 123, and the position limiting plate 123 is located on a side of the guide tube 133 away from the spring 122. Due to the existence of the limiting plate 123, the force for restoring the deformation of the spring 122 can be limited, and the small bus is prevented from being excessively extruded.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a little generating line quick connecting device for protection screen is changed to transformer substation which characterized in that: the clamping assembly comprises an upper pressing rod and a lower pressing rod, the upper pressing rod and the lower pressing rod are respectively connected with the upper pressing rod and the lower pressing rod, the upper pressing rod and the lower pressing rod are extruded simultaneously, the upper pressing rod and the lower pressing rod move oppositely, the elastic guide assembly can enable the clamping assembly to move reversely under the action of the elastic guide assembly, and the clamping assembly can be closed to enable the clamping assembly to move reversely.

2. The small bus quick connecting device for the substation replacement protective screen according to claim 1, characterized in that: the clamping assembly comprises an upper clamping jaw and a lower clamping jaw, the upper clamping jaw and the lower clamping jaw are arranged oppositely, one end of the upper clamping jaw is hinged with one end of the lower clamping jaw on the same side, and the upper clamping jaw and the lower clamping jaw can be opened or closed.

3. The small bus quick connecting device for the substation replacement protective screen according to claim 2, characterized in that: the structure of going up centre gripping pincers, lower centre gripping pincers is the same, it includes arc portion, articulated portion, straight portion to go up the centre gripping pincers, articulated portion and straight portion connect respectively in the both sides of arc portion to form the integral type structure.

4. The small bus quick connecting device for the substation replacement protective screen according to claim 3, characterized in that: an anti-falling part is arranged on the straight part.

5. The small bus quick connecting device for the substation replacement protective screen according to claim 4, characterized in that: the surface of the anti-falling part is provided with a groove, and two end parts of the anti-falling part are provided with protruding stop blocks.

6. The small bus quick connecting device for the substation replacement protective screen according to claim 2, characterized in that: the structure of the upper pressing rod and the lower pressing rod is the same, a guide pipe is fixedly arranged on the upper pressing rod, and the guide pipe is positioned on one side, close to the upper clamping pincers, of the upper pressing rod.

7. The small bus quick connecting device for the substation replacement protective screen according to claim 6, characterized in that: and an anti-skidding sleeve is arranged at one end, far away from the guide pipe, of the upper pressing rod.

8. The small bus quick connecting device for the substation replacement protective screen according to claim 6, characterized in that: the elastic guide assembly comprises a guide rod and a spring, the guide rod is of an arc-shaped structure, two end portions of the guide rod are respectively inserted into guide pipes on the upper pressing rod and the lower pressing rod and are in sliding connection with the guide pipes, the spring is sleeved on the guide rod, and the two end portions of the spring are respectively contacted with the guide pipes on the upper pressing rod and the lower pressing rod.

9. The small bus quick connecting device for the substation replacement protection screen according to claim 8, characterized in that: and two end parts of the guide rod are respectively and fixedly provided with a limiting plate, and the limiting plates are positioned on one side of the guide pipe, which is far away from the spring.