CN211455604U

CN211455604U - High-voltage grounding switch in ring main unit user

Info

Publication number: CN211455604U
Application number: CN202020508912.0U
Authority: CN
Inventors: 郑刘亮; 郑雪婷; 余希
Original assignee: Murge Electric Co ltd
Current assignee: Murge Electric Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-09-08
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a high-voltage grounding switch in a ring main unit user, which comprises an installation bottom frame and a rotating shaft; a rectangular plate is installed on the installation underframe through a screw, a row of post insulators are installed on the rectangular plate, and static contacts are installed at the top ends of the post insulators; a wire slot protection plate for penetrating a connecting wire is fixed on the rear end face of the mounting underframe; the rotating shaft is in rotating fit with the left and right flanging surfaces of the mounting underframe, and a confluence copper pipe is further mounted on the rotating shaft through a connecting plate; a row of moving contacts are arranged on the confluence copper pipe; therefore, the post insulator can be replaced independently and is very convenient, and the grounding energy storage rod for grounding and releasing static electricity is influenced by the structure of the middle rotary crank arm in the rectangular notch formed in the mounting chassis, so that the structure is more stable and not easy to deviate when rotating along with the rotating shaft, and the structure is more reasonable than the prior art.

Description

High-voltage grounding switch in ring main unit user

Technical Field

The utility model relates to an earthing switch makes technical field, specifically is a high-pressure earthing switch in looped netowrk cabinet user.

Background

The earthing switch is an earthing protection device widely applied to various switch cabinets in the power transmission and distribution industry, and is used for protecting equipment and personal safety during equipment maintenance. The earthing switch used on the existing high-voltage switch cabinet is common, namely, the structure is provided with an installation underframe, a fixed contact, a moving contact, a post insulator, a rotating shaft and a spring device, the post insulator is fixed on the installation underframe, the fixed contact is arranged at the end part of the post insulator, the rotating shaft is arranged on the installation underframe, the moving contact knife is connected with the rotating shaft, and the spring device is connected with a moving contact connecting lever to drive the moving contact connecting lever.

The above described earthing switch structure has some drawbacks: 1. receive its structural influence, the assembly is in the less miniature cubical switchboard kind of some cabinets bodies, can't satisfy service condition, and insulating level can't satisfy promptly. 2. If the force is operated by the third operating mechanism, the operation cannot be performed. 3. After the grounding switch is arranged in the cabinet body, if the post insulator needs to be replaced, the whole grounding switch needs to be detached, which is very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-voltage earthing switch in looped netowrk cabinet user to solve current earthing switch and receive its structural influence, assemble in the less miniature cubical switchboard of some cabinets bodies kind, can't satisfy service condition, insulating level can't satisfy promptly. If the force is operated by the third operating mechanism, the operation cannot be performed. The earthing switch is arranged behind the cabinet body, if the post insulator needs to be replaced, the replacement is very inconvenient, and the whole earthing switch needs to be detached.

In order to achieve the above object, the utility model provides a following technical scheme: a high-voltage grounding switch in a ring main unit user comprises an installation underframe and a rotating shaft; a rectangular plate is installed on the installation underframe through a screw, a row of post insulators are installed on the rectangular plate, and static contacts are installed at the top ends of the post insulators; a wire slot protection plate for penetrating a connecting wire is fixed on the rear end face of the mounting underframe; the rotating shaft is in rotating fit with the left and right flanging surfaces of the mounting underframe, and a confluence copper pipe is further mounted on the rotating shaft through a connecting plate; a row of moving contacts are arranged on the confluence copper pipe; the moving contact and a static contact arranged at the top end of the post insulator form a one-to-one correspondence in front and back positions; the outer end of the rotating shaft is provided with a connecting rod through a pin shaft, and the connecting rod is connected with a long connecting rod which extends backwards in a mode of assembling the pin shaft at the bottom.

Further: the right side of the installation chassis is provided with a rectangular notch structure, and the notch structure is upwards communicated with a rectangular plate installed on the bottom surface of the inner cavity of the installation chassis.

Further: the bottom of the right side area of the rotating shaft is welded with a crank arm, and the crank arm is positioned in a notch formed in the bottom surface of the right side of the installation chassis.

Further: the bottom of the crank arm is connected with a grounding energy storage rod through a pin shaft, and the grounding energy storage rod is provided with a sliding groove with a rectangular opening structure.

Further: the left side of the long connecting rod is welded with a sliding column, the sliding column is in sliding fit with the sliding groove formed in the grounding energy storage rod, and a pressure spring is further welded on the inner end face of the sliding column and the inner end face of the grounding energy storage rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the miniaturized installation of being convenient for of structure is at less type cubical switchboard, and the power value cooperation is more reasonable, and the long connecting rod of outside linkage action can control movable contact speed and static contact switch-on and separation simultaneously, improves work efficiency, the operation of being convenient for to the outside long connecting rod that this kind of operating means realized, can effectual and third party operating device cooperation, safe and reliable, the stable performance, the assembly is simple. Because the post insulator is installed on the chassis through the internal connection board, therefore can change alone when changing the post insulator, it is very convenient to this structure is used for ground connection release static's ground connection energy storage pole, receives the structure influence in the rectangle notch that well rotation turning arm seted up on the installation chassis, and consequently it is when rotatory action along with the pivot, and is more steady, difficult skew, and the structure is more reasonable than prior art.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the right side plan structure of the present invention, which is drawn from fig. 1;

fig. 3 is a schematic left side view plane structure diagram of the linkage mechanism in the notch bottom surface region at the position of the pressure spring drawn out from fig. 1.

In the figure: 1. installing a bottom frame; 2. a rotating shaft; 3. static contact; 4. a post insulator; 5. a confluence copper pipe; 6. a moving contact; 7. a wire slot protection plate; 8. a long connecting rod; 801. a traveler; 9. a connecting rod; 10. a grounded energy storage pin; 11. a grounded energy storage rod; 1101. a chute; 12. a pressure spring; 13. a crank arm.

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.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a high-voltage grounding switch in a ring main unit user comprises an installation underframe 1 and a rotating shaft 2; a rectangular plate is installed on the installation underframe 1 through a screw, a row of post insulators 4 are installed on the rectangular plate, and static contacts 3 are installed at the top ends of the post insulators 4; a wire slot protection plate 7 for penetrating a connecting wire is fixed on the rear end surface of the installation underframe 1; the rotating shaft 2 is matched with the left and right flanging surfaces of the installation underframe 1 in a rotating way, and a confluence copper pipe 5 is also installed on the rotating shaft 2 through a connecting plate; a row of moving contacts 6 are arranged on the confluence copper pipe 5; the moving contact 6 and the static contact 3 arranged at the top end of the post insulator 4 form a one-to-one correspondence in front and back positions; the outer end of the rotating shaft 2 is provided with a connecting rod 9 through a pin shaft, the connecting rod 9 is connected with a long connecting rod 8 which extends backwards in a mode of assembling the pin shaft at the bottom, when the long connecting rod 8 is pressed down, the connecting rod 9 can rotate synchronously, finally, the rotating shaft 2 can drive the confluence copper pipe 5 at the top to rotate synchronously, and the movable contact 6 on the confluence copper pipe 5 is combined with and separated from the static contact 3.

It is only: rectangular notch structure has been seted up on the right side of installation chassis 1, and the notch structure makes progress the rectangular plate of straight-through installation chassis 1 inner chamber bottom surface installation, and this notch is as shown in fig. 1, has constituted the regional groove that supplies the rotatory action of turning arm 13, and fig. 1 can find out, and the regional bottom welding in right side of pivot 2 has turning arm 13, and turning arm 13 is located the notch that 1 right side bottom surface of installation chassis was seted up, consequently can see out, turning arm 13 is along with the synchronous rotatory action of pivot 2.

It is only: as shown in fig. 2 and 3, the bottom of the crank arm 13 is further connected to the grounding energy storage rod 11 through a pin, the grounding energy storage rod 11 is provided with a sliding slot 1101 with a rectangular opening structure, the left side of the long connecting rod 8 is welded with a sliding column 801, the sliding column 801 is in sliding fit with the sliding slot 1101 arranged on the grounding energy storage rod 11, and the sliding column 801 and the inner end surface of the grounding energy storage rod 11 are further welded with a compression spring 12, so that as long as the long connecting rod 8 is pressed by an external third-party mechanism, the sliding column 801 at the inner end will slide in the sliding slot 1101 on the grounding energy storage rod 11, and as the long connecting rod 8 continues to be pressed, the grounding energy storage rod 11 with a rotation effect will contact with the ground to release static electricity, on the contrary, the long connecting rod 8 loses the pressing action of the third-party mechanism, the sliding column 801 at the inner end will slide in the sliding slot 1101 on the grounding energy storage rod 11 in, the long connecting rod 8 continues to ascend and swing under the influence of the resetting action of the compression spring 12, so that the grounding energy storage rod 11 with the rotation effect is separated from the ground, and the application characteristic of electrostatic discharge is lost.

Compared with the prior art, the advantage of this design lies in:

the device is arranged on equipment by utilizing an installation underframe 1, a wiring harness accessed from a wire groove protection plate 7 on the installed equipment is connected to a confluence copper pipe 5, because a post insulator 4 arranged on the bottom surface of an inner cavity of the installation underframe 1 is fixed on the bottom surface of the inner cavity of the installation underframe 1 through a screw, the post insulators 4 are convenient to install and replace, the device is superior to the prior similar structure, a long connecting rod 8 can be matched with an external third party pressing mechanism for use, and a rod piece can control all moving contacts 6 in the device to be separated from and combined with static contacts 3 on all the post insulators 4, so the device is convenient to operate, and as shown in figures 1 to 3, the device is different from the prior art in that when the long connecting rod 8 is pressed down, the device is linked through a connecting rod mechanism consisting of a sliding column 801, a connecting rod 9, a grounding energy storage pin 10, a grounding energy storage rod 11, a sliding chute 1101, finally with ground connection energy storage pole 11 and ground contact, realize electrostatic discharge to receive pressure spring 12 rebound force down, when losing outside third party pressure actuating mechanism and press the dynamic effect, along with long connecting rod 8 receives the influence of pressure spring 12 action of resetting, continues to raise upward the swing, thereby can make the ground connection energy storage pole 11 and the ground separation of rotation effect, loses this application characteristic of electrostatic discharge. In addition, the crank arm 13 which rotates in the structure is positioned in a rectangular notch formed on the installation underframe 1, so that the crank arm rotates along with the rotating shaft 2 more stably.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high voltage earthing switch in looped netowrk cabinet user, includes installation chassis (1) and pivot (2), its characterized in that: a rectangular plate is installed on the installation underframe (1) through a screw, a row of post insulators (4) are installed on the rectangular plate, and static contacts (3) are installed at the top ends of the post insulators (4); a wire slot protection plate (7) for penetrating a connecting wire is fixed on the rear end face of the installation underframe (1); the rotating shaft (2) is in rotating fit with the left and right flanging surfaces of the mounting underframe (1), and a confluence copper pipe (5) is further mounted on the rotating shaft (2) through a connecting plate; a row of moving contacts (6) are arranged on the confluence copper pipe (5); the moving contact (6) and a static contact (3) arranged at the top end of the post insulator (4) form a one-to-one correspondence in front and back positions; the outer end of the rotating shaft (2) is provided with a connecting rod (9) through a pin shaft, and the connecting rod (9) is connected with a long connecting rod (8) which extends backwards in a mode of assembling the pin shaft at the bottom.

2. The high voltage grounding switch in the ring main unit user as claimed in claim 1, wherein: the right side of the installation chassis (1) is provided with a rectangular notch structure, and the notch structure is upwards communicated with a rectangular plate installed on the bottom surface of the inner cavity of the installation chassis (1).

3. The high voltage grounding switch in the ring main unit user as claimed in claim 1, wherein: the bottom of the right side area of the rotating shaft (2) is welded with a crank arm (13), and the crank arm (13) is positioned in a notch formed in the bottom surface of the right side of the installation chassis (1).

4. The high voltage grounding switch in the ring main unit user as claimed in claim 3, wherein: the bottom of the crank arm (13) is connected with a grounding energy storage rod (11) through a pin shaft, and a sliding groove (1101) with a rectangular opening structure is formed in the grounding energy storage rod (11).

5. The high voltage grounding switch in the ring main unit user as claimed in claim 4, wherein: the left side of the long connecting rod (8) is welded with a sliding column (801), the sliding column (801) is in sliding fit with the sliding groove (1101) formed in the grounding energy storage rod (11), and the inner end faces of the sliding column (801) and the grounding energy storage rod (11) are further welded with a compression spring (12).