CN214479044U

CN214479044U - Solid insulation totally-enclosed medium voltage switchgear

Info

Publication number: CN214479044U
Application number: CN202023189774.3U
Authority: CN
Inventors: 陆尖
Original assignee: Zhenjiang Dianliang New Material Import And Export Co ltd
Current assignee: Zhenjiang Dianliang New Material Import And Export Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-10-22
Anticipated expiration: 2030-12-26

Abstract

The utility model discloses a solid insulation totally-enclosed medium voltage switchgear, which comprises a shell, wherein the bottom inside the shell is provided with an insulation bin, the top of the insulation bin is provided with a closed fuse, one side of the top of the closed fuse is provided with a self-resetting fuse, and one side of the top of the closed fuse, which is far away from the self-resetting fuse, is provided with a sealing bin; the utility model discloses a control button, a spring, the clamp plate, the connecting rod, the cock ring, under the cooperation of sleeve and warning light, the gaseous content of the inside SF of warning staff cylinder that can be timely, when the gaseous content of the inside SF of cylinder is not enough, the inside atmospheric pressure of cylinder can reduce, because cock ring and telescopic sealed effect, when the inside atmospheric pressure of cylinder reduces, the spring can slowly reset and is pressing clamp plate and connecting rod decline, when descending a certain distance, the clamp plate can be pressing control button then start the warning light and remind the gaseous not enough in the staff cylinder.

Description

Solid insulation totally-enclosed medium voltage switchgear

Technical Field

The utility model relates to a cubical switchboard technical field specifically is a totally closed medium voltage switchgear of solid insulation.

Background

With the rapid development of 10kV medium-voltage power transmission and transformation in China, the requirements on the stability and safety of medium-voltage power equipment are higher and higher;

the prior device has the following defects:

most of the existing switch equipment is insulated by using SF6, but the switch equipment is difficult to detect when the gas filled with SF6 is used up; the existing switch equipment is provided with an air box with SF6, so that air leakage is caused, and if the air box leaks out, the environment can be polluted; existing switchgear is basically sealed, and if SF6 gas leaks out, the gas in the interior of the switchgear cannot be pumped out, and when the compartment door is opened, the gas can be directly diffused into the air, and the environment is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a solid insulation totally-enclosed medium voltage switchgear to solve the problems that most of the existing switchgear in the background art is insulated by using SF6, but the gas filled with SF6 is difficult to be detected when the gas is used up; the existing switch equipment is provided with an air box with SF6, so that air leakage is caused, and if the air box leaks out, the environment can be polluted; the existing switch equipment is basically sealed, if SF6 gas leaks out, the gas in the switch cabinet can not be pumped out, and when the bin door is opened, the gas can be directly diffused to the air, and the environment is affected.

In order to achieve the above object, the utility model provides a following technical scheme: a solid insulation totally-enclosed medium voltage switchgear comprises a shell, wherein an insulation bin is arranged at the bottom inside the shell, a closed fuse is arranged at the top of the insulation bin, a self-recovery fuse is arranged on one side of the top of the closed fuse, a sealing bin is arranged on one side, away from the self-recovery fuse, of the top of the closed fuse, an air cylinder is arranged on one side of the bottom inside the sealing bin, an installation bin is arranged on one side of the top of the air cylinder, a spring is arranged at the top inside the installation bin, a pressing plate is arranged at the bottom of the spring, a connecting rod is arranged in the middle of the bottom of the pressing plate, a control button is arranged on one side of the bottom inside the installation bin, a sleeve is arranged on one side of the top inside the air cylinder, the connecting rod and the sleeve are mutually matched, a plug ring is arranged at the bottom outside the connecting rod, and an opening is arranged on one side of the top of the air cylinder, the top of the through hole is provided with an air outlet pipe, an air pump is arranged between an air inlet and an air outlet of the air outlet pipe, one side of the top of the shell is provided with a prompt lamp, the middle of one side of the shell is provided with an air inlet pipe, one side of the air inlet pipe is provided with an air bag, the bottom of one side of the shell is provided with an air vent pipe, one side of one end of the shell is hinged with a bin gate, the middle of one side of one end of the bin gate is provided with a sealing block A, one end of the sealing block A is provided with a plurality of groups of bolts, the middle of one side of one end of the shell is provided with a slot A, the inside of the slot A is provided with a plurality of groups of magnets, the sealing block A is mutually matched with the slot A, the middle of one side of one end of the shell, far away from the slot A, is provided with a slot C, one side of one end of the bin gate, far away from the sealing block A, is provided with a sealing block B, and the slot C are mutually matched, the top and the bottom symmetry of door one end are provided with the sealing ring, the inside one side of sealing ring articulates there is hinge bar B, one side of hinge bar B articulates there is hinge bar A, one side of the bottom at hinge bar A top is provided with the slider, the top and the bottom symmetry of casing one end are provided with slot B, slot B is located slot B's inside.

Preferably, the bottom of the connecting rod is provided with a clamping bead.

Preferably, one side of the control button is provided with a protective plug.

Preferably, the sealing ring, the sealing block a and the sealing block B are all made of rubber material.

Preferably, one side of one end of the bin gate is provided with a pull handle.

Preferably, the surface of the shell is coated with an antirust coating.

Compared with the prior art, the beneficial effects of the utility model are that: the solid insulated totally-enclosed medium voltage switchgear;

1. under the coordination of the control button, the spring, the pressing plate, the connecting rod, the plug ring, the sleeve and the prompting lamp, the content of SF gas in the air cylinder can be timely reminded to workers, when the content of the SF gas in the air cylinder is insufficient, the air pressure in the air cylinder can be reduced, due to the sealing effect of the plug ring and the sleeve, when the air pressure in the air cylinder is reduced, the spring can be slowly reset to press the pressing plate and the connecting rod to descend, and when the air pressure in the air cylinder descends to a certain distance, the pressing plate can press the control button and then start the prompting lamp to remind the workers of insufficient gas in the air cylinder;

2. the sealing device has the advantages that the sealing effect can be achieved through the matching of the sealing block A, the bolt, the slot A, the magnet, the hinge rod A, the sealing ring, the sliding block, the hinge rod B, the sealing block B and the slot C, when gas inside the shell leaks, the gas can be prevented from leaking outside, meanwhile, the stability of cabin door connection can be improved through the matching of the hinge rod B, the hinge rod A and the sliding block, and the situation that the cabin door cannot be closed due to looseness of a hinge part of the cabin door can be prevented;

3. under the cooperation through control button and gasbag, when SF gas reveals, only need open control button, just can take out the inside gas of casing through other air exhaust device, can observe the inside gaseous content of casing through the gasbag, if during the extraction the gasbag become flat just indicate the inside gas of casing to be taken out totally.

Drawings

FIG. 1 is an opening view of a door at a housing of the present invention;

fig. 2 is a front sectional view of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a front sectional view of the cylinder of the present invention;

fig. 5 is an enlarged schematic view of a structure in fig. 4 according to the present invention.

In the figure: 1. a housing; 2. an air inlet pipe; 3. an air bag; 4. a breather pipe; 5. an insulating bin; 6. a closed fuse; 7. a cylinder; 8. installing a bin; 9. sealing the bin; 10. a warning light; 11. an air outlet pipe; 12. an air pump; 13. a self-resetting fuse; 14. a port; 15. a control button; 16. a spring; 17. pressing a plate; 18. a connecting rod; 19. a magnet; 20. a plug ring; 21. a sleeve; 22. a slot A; 23. a slot B; 24. a slider; 25. a hinge rod A; 26. a seal ring; 27. a hinge lever B; 28. a sealing block A; 29. a bolt; 30. a bin gate; 31. a sealing block B; 32. and a slot C.

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.

Referring to fig. 1-5, the present invention provides an embodiment: a solid insulation totally-enclosed medium-voltage switchgear comprises a shell 1, an insulation bin 5 is arranged at the bottom inside the shell 1, a closed fuse 6 is arranged at the top of the insulation bin 5, a self-recovery fuse 13 is arranged on one side of the top of the closed fuse 6, a seal bin 9 is arranged on one side, away from the self-recovery fuse 13, of the top of the closed fuse 6, a cylinder 7 is arranged on one side of the bottom inside the seal bin 9, an installation bin 8 is arranged on one side of the top of the cylinder 7, a spring 16 is arranged at the top inside the installation bin 8, a pressing plate 17 is arranged at the bottom of the spring 16, a connecting rod 18 is arranged in the middle of the bottom of the pressing plate 17, a control button 15 is arranged on one side of the bottom inside the installation bin 8, a sleeve 21 is arranged on one side of the top inside the cylinder 7, the connecting rod 18 and the sleeve 21 are mutually matched, a plug ring 20 is arranged at the bottom outside the connecting rod 18, and a through hole 14 is arranged on one side of the top of the cylinder 7, an air outlet pipe 11 is arranged at the top of a through opening 14, an air suction pump 12 is arranged between an air inlet and an air outlet of the air outlet pipe 11, a prompt lamp 10 is arranged at one side of the top of a shell 1 and can improve the warning effect, an air inlet pipe 2 is arranged in the middle of one side of the shell 1, an air bag 3 is arranged at one side of the air inlet pipe 2, an air vent pipe 4 is arranged at the bottom of one side of the shell 1, a bin door 30 is hinged to one side of one end of the shell 1, a sealing block A28 is arranged in the middle of one side of one end of the bin door 30, a plurality of groups of bolts 29 are arranged at one end of the sealing block A28, a slot A22 is arranged in the middle of one side of one end of the shell 1, a plurality of magnets 19 are arranged in the slot A22, a slot A3872 and a sealing block A28 are mutually matched, a slot C3874 is arranged in the middle of one side of one end of the shell 1 far away from the slot A22, a sealing block B31 is arranged at one side of the slot B31 and is mutually matched with a slot C32, the top and the bottom symmetry of door 30 one end are provided with sealing ring 26, and one side of the inside of sealing ring 26 articulates there is articulated rod B27, and one side of articulated rod B27 articulates there is articulated rod A25, and one side of the bottom at articulated rod A25 top is provided with slider 24, and the top and the bottom symmetry of casing 1 one end are provided with slot B23, and slot B23 is located the inside of slot B23.

The prompting lamp 10, the air pump 12, the insulating bin 5, the closed fuse 6 and the self-resetting fuse 13 in the device are the prior art, and the composition structure and the connection mode of the device are completely the same as those of the prior device.

Furthermore, the bottom of the connecting rod 18 is provided with a clamping bead to prevent the connecting rod 18 from excessively rising.

Further, a protective plug is arranged on one side of the control button 15 to prevent air leakage.

Furthermore, the sealing ring 26, the sealing block A28 and the sealing block B31 are all made of rubber materials, and the sealing effect is good.

Furthermore, a pull handle is arranged on one side of one end of the bin gate 30, so that the bin gate 30 can be conveniently pulled.

Further, the surface of the shell 1 is coated with an antirust coating to prevent the surface of the shell 1 from rusting.

The working principle is as follows: the electric parts of the device are all powered by an external power supply, when the SF6 gas content in the cylinder 7 is insufficient, the air pressure in the cylinder 7 can be reduced, due to the sealing effect of the plug ring 20 and the sleeve 21, when the air pressure in the cylinder 7 is reduced, the spring 16 can be slowly reset to press the pressing plate 17 and the connecting rod 18 to descend, and when the air pressure descends to a certain distance, the pressing plate 17 can press the control button 15 to start the prompting lamp 10 to remind a worker of the insufficient gas in the cylinder 7;

when the bin door is closed, the hinge rod B27 can slowly attach to the sealing ring 26, when the hinge rod B27 is completely attached to the sealing ring 26, the hinge rod A25 is pushed to slide in the slot B23, finally, the hinge rod A25 and the hinge rod B27 are folded and overlapped together, the sealing ring 26 is inserted into the slot B23, the sealing block B31 is inserted into the slot C32, and when the sealing block A28 is inserted into the slot A22, the bolt 29 is attracted by the magnet 19, so that the bin door 30 is fixed;

when SF6 gas leaks, the control button 15 is only needed to be opened, the gas in the shell 1 can be pumped out through other air pumping devices, the content of the gas in the shell 1 can be observed through the air bag 3, and if the air bag 3 is deflated during the pumping, the gas in the shell 1 is pumped out completely.

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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A solid insulated totally enclosed medium voltage switchgear, comprising a housing (1), characterized in that: the bottom of the inside of the shell (1) is provided with an insulating bin (5), the top of the insulating bin (5) is provided with a closed fuse (6), one side of the top of the closed fuse (6) is provided with a self-resetting fuse (13), one side of the top of the closed fuse (6), which is far away from the self-resetting fuse (13), is provided with a sealing bin (9), one side of the bottom of the inside of the sealing bin (9) is provided with a cylinder (7), one side of the top of the cylinder (7) is provided with an installation bin (8), the top of the inside of the installation bin (8) is provided with a spring (16), the bottom of the spring (16) is provided with a pressing plate (17), the middle of the bottom of the pressing plate (17) is provided with a connecting rod (18), one side of the bottom of the inside of the installation bin (8) is provided with a control button (15), one side of the top of the inside of the cylinder (7) is provided with a sleeve (21), the connecting rod (18) and the sleeve (21) are mutually adaptive, a plug ring (20) is arranged at the bottom of the outer side of the connecting rod (18), an opening (14) is arranged on one side of the top of the cylinder (7), an air outlet pipe (11) is arranged at the top of the opening (14), an air suction pump (12) is arranged between an air inlet and an air outlet of the air outlet pipe (11), a prompt lamp (10) is arranged on one side of the top of the shell (1), an air inlet pipe (2) is arranged in the middle of one side of the shell (1), an air bag (3) is arranged on one side of the air inlet pipe (2), a vent pipe (4) is arranged at the bottom of one side of the shell (1), a bin gate (30) is hinged to one side of one end of the shell (1), a sealing block A (28) is arranged in the middle of one side of one end of the bin gate (30), and a plurality of groups of bolts (29) are arranged at one end of the sealing block A (28), the middle of one side of one end of the shell (1) is provided with a slot A (22), a plurality of groups of magnets (19) are arranged inside the slot A (22), the sealing block A (28) and the slot A (22) are mutually matched, the middle of one side of the shell (1) far away from the slot A (22) is provided with a slot C (32), one side of one end of the bin door (30) far away from the sealing block A (28) is provided with a sealing block B (31), the sealing block B (31) and the slot C (32) are mutually matched, the top and the bottom of one end of the bin door (30) are symmetrically provided with sealing rings (26), one side of the inside of the sealing ring (26) is hinged with a hinged rod B (27), one side of the hinged rod B (27) is hinged with a hinged rod A (25), one side of the bottom of the top of the hinged rod A (25) is provided with a sliding block (24), and the top and the bottom of one end of the shell (1) is symmetrically provided with a slot B (23), the slot B (23) is located inside the slot B (23).

2. A solid insulated fully enclosed medium voltage switchgear according to claim 1, characterized in that: the bottom of the connecting rod (18) is provided with a clamping bead.

3. A solid insulated fully enclosed medium voltage switchgear according to claim 1, characterized in that: and a protective plug is arranged on one side of the control button (15).

4. A solid insulated fully enclosed medium voltage switchgear according to claim 1, characterized in that: the sealing ring (26), the sealing block A (28) and the sealing block B (31) are all made of rubber materials.

5. A solid insulated fully enclosed medium voltage switchgear according to claim 1, characterized in that: one side of one end of the bin gate (30) is provided with a pull handle.

6. A solid insulated fully enclosed medium voltage switchgear according to claim 1, characterized in that: the surface of the shell (1) is coated with an antirust coating.