CN212811088U - All-insulation all-sealed inflatable ring network switch equipment with fuse combined electrical apparatus - Google Patents
All-insulation all-sealed inflatable ring network switch equipment with fuse combined electrical apparatus Download PDFInfo
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- CN212811088U CN212811088U CN202021739879.9U CN202021739879U CN212811088U CN 212811088 U CN212811088 U CN 212811088U CN 202021739879 U CN202021739879 U CN 202021739879U CN 212811088 U CN212811088 U CN 212811088U
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- pressure relief
- rubber gasket
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- sleeve
- circular plate
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Abstract
The utility model relates to a looped netowrk cabinet technical field, specifically speaking discloses a full insulation totally enclosed inflatable looped netowrk switchgear with fuse combination electrical apparatus, including the looped netowrk cabinet body, be equipped with the gas tank in the looped netowrk cabinet body, be equipped with the pressure release hole on the gas tank, be equipped with the pressure release section of thick bamboo on the gas tank, pressure release section of thick bamboo inner wall is equipped with rubber packing ring mount pad, is equipped with rubber packing ring mounting groove on the rubber packing ring mount pad, is equipped with the rubber packing ring in the rubber packing ring mounting; a sleeve is sleeved outside the pressure relief cylinder, a sealing mechanism used for sealing the pressure relief hole is arranged at an opening at the upper end part of the sleeve, the sealing mechanism comprises circular plates, and a plurality of connecting blocks for connecting the circular plates and the sleeve are arranged at the edges of the circular plates; the bottom end face of the circular plate is provided with an annular groove matched with the rubber gasket mounting groove, and the bottom end of the circular plate abuts against the rubber gasket. The utility model discloses automatic pressure release has not only been realized to it is comparatively convenient installing and maintaining, the promotion of preferred has been to the leakproofness of gas tank simultaneously.
Description
Technical Field
The utility model relates to a looped netowrk cabinet technical field, specifically speaking relates to a full insulation totally enclosed inflatable looped netowrk switchgear with fuse combined electrical apparatus.
Background
In a power supply system, a high-voltage inflatable ring main unit is a very common electrical device, the existing ring main unit is mostly provided with a ring main unit air chamber, SF6 gas with certain pressure is filled in the ring main unit air chamber, and the safe operation of the ring main unit is ensured through the strong insulating capability and arc extinguishing capability of the ring main unit; when an arc fault occurs in the ring main unit air chamber, the air pressure in the ring main unit air chamber is suddenly increased, and in order to weaken the pressure of the air on the ring main unit air chamber and ensure the personal safety of operators, an explosion-proof pressure relief device is arranged on the ring main unit air chamber so that the air can be rapidly exhausted from the ring main unit air chamber; the existing ring main unit is generally provided with a pressure relief hole, the pressure relief device generally comprises an explosion-proof membrane for blocking the pressure relief hole and an explosion-proof needle capable of puncturing the explosion-proof membrane, when the air pressure in the ring main unit is higher, the explosion-proof membrane is ejected towards the direction of the explosion-proof needle, so that the needle point of the explosion-proof needle punctures the explosion-proof membrane, the purpose of pressure relief is further achieved, and the explosion-proof membrane cannot be recycled after being punctured.
The patent document with the publication number of CN210273138U discloses an explosion-proof structure of high-pressure inflatable looped netowrk cabinet, and it is including setting up the spliced pole on the looped netowrk cabinet, run through on the looped netowrk cabinet and be equipped with the pressure release hole, be equipped with the through-hole with pressure release hole matched with on the spliced pole, the through-hole is installed with the pressure release hole is concentric, the upper end of spliced pole is equipped with the closing plate, fixedly connected with and the through-hole sealed piece of installation that cooperatees on the lateral wall of closing plate near spliced pole one side, be equipped with elasticity canceling release. Although the utility model discloses a solve the sealed defect that damages easily appear of filling up among the traditional looped netowrk cabinet, when the use of reality, the air chamber is sealed to what unable preferred, and the air in the air chamber is probably flowed from the gap between closing plate and the spliced pole.
SUMMERY OF THE UTILITY MODEL
Carry out the defect sealed to the pressure release hole of air chamber to the unable preferred of ordinary looped netowrk cabinet explosion-proof construction that exists among the prior art, the utility model provides a totally insulated totally enclosed inflatable looped netowrk switchgear with fuse combined electrical apparatus. It can realize the function that the air chamber pressure release hole of preferred carries out sealedly.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve:
a full-insulation full-sealing inflatable ring network switch device with a fuse combined electrical appliance comprises a ring network cabinet body, wherein an air box is arranged in the ring network cabinet body, a pressure relief hole is formed in the air box, a pressure relief cylinder with an inner cavity matched with the pressure relief hole is arranged on the air box, the inner wall of the upper end part of the pressure relief cylinder is inwards shrunk to form a circular rubber gasket mounting seat, a rubber gasket mounting groove is formed in the rubber gasket mounting seat, and a rubber gasket is arranged in the rubber gasket mounting groove; a sleeve with an inner wall in clearance fit with the outer side wall of the pressure relief cylinder is sleeved outside the pressure relief cylinder, a sealing mechanism used for sealing the pressure relief hole is arranged at an opening at the upper end part of the sleeve, the sealing mechanism comprises a circular plate in clearance fit with the pressure relief cylinder, and a plurality of connecting blocks for connecting the circular plate and the sleeve are arranged at the edge of the circular plate; the bottom end face of the circular plate is provided with an annular groove matched with the rubber gasket mounting groove, and the bottom end of the circular plate abuts against the rubber gasket; the outer side wall of the bottom end portion of the sleeve is outwards expanded along the circumferential direction of the outer side wall to form an expansion portion, a plurality of expansion portion through holes are formed in the expansion portion and are arranged along the circumferential direction of the expansion portion, a plurality of screw holes are formed in the air box and are located right below the expansion portion through holes, half-thread bolts which penetrate through the expansion portion through holes and are matched with the screw holes are arranged in the screw holes, and springs used for abutting the circular plate on the rubber gasket are arranged on the half-thread bolts.
The utility model discloses automatic pressure release has not only been realized to it is comparatively convenient to install and maintain, simultaneously because the setting of annular groove and rubber packing ring mounting groove, the promotion of preferred to the leakproofness of gas tank, has avoided the gas in the gas tank to flow from the pressure release mouth.
Preferably, the upper end of the half-thread bolt is provided with a thread, the upper end of the half-thread bolt is provided with a nut matched with the thread, one end of the spring abuts against the nut, and the other end of the spring abuts against the expansion part.
Through the utility model discloses a setting of screw thread and nut had both avoided the plectane not enough to the pressure of rubber packing ring and had leaded to the gas in the gas tank to flow from the pressure release hole, had avoided the plectane too big and lead to unable comparatively stable pressure release to the pressure of rubber packing ring again.
Preferably, the number of the through holes of the expansion part is 4-6.
Through the utility model discloses a setting of expansion portion through-hole quantity, this all insulation totally enclosed inflatable looped netowrk switchgear that has fuse combination electrical apparatus of promotion that can the preferred is stability when using.
Preferably, the sum of the depth value of the annular groove and the thickness value of the rubber gasket is 0.2 cm-0.5 cm more than the depth value of the rubber gasket mounting groove.
Through with the utility model provides an annular groove's the depth value and the thickness value sum of rubber packing ring set up to more 0.2cm ~ 0.5cm than rubber packing ring mounting groove depth value, can make the edge of plectane can be comparatively stable seal a pressure release section of thick bamboo.
Preferably, the outer side wall of the pressure relief cylinder is provided with a convex block positioned right below the connecting block, the convex block is provided with a convex block through hole, and the connecting block is provided with an optical axis in clearance fit with the convex block through hole.
Through the utility model discloses a setting of lug, lug through-hole and optical axis can avoid the sleeve to take place to rock when removing on a pressure release section of thick bamboo to the promotion of preferred sleeve stability when removing on a pressure release section of thick bamboo.
Drawings
Fig. 1 is a schematic structural diagram of an all-insulated all-sealed inflatable ring network switchgear with a fuse combination in embodiment 1.
Fig. 2 is a partial structural schematic view of the gas tank in embodiment 1.
Fig. 3 is a partial cross-sectional view of the air box of fig. 1.
Fig. 4 is a schematic structural view of a portion a in fig. 3.
Fig. 5 is a schematic structural view of the sleeve in fig. 2.
The names of the parts indicated by the numerical references in the drawings are as follows:
110. a ring main unit body; 210. a gas tank; 220. a sleeve; 230. a circular plate; 240. connecting blocks; 250. an expansion section; 260. a half-threaded bolt; 270. a spring; 280. a nut; 310. a pressure relief vent; 320. a screw hole; 330. a thread; 410. a pressure relief cylinder; 420. a rubber gasket mount; 430. a rubber gasket mounting groove; 440. a rubber gasket; 450. an annular groove; 460. a bump; 470. a bump through hole; 480. an optical axis; 510. the expansion part is provided with a through hole.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a fully insulated and fully sealed inflatable ring network switch device with a fuse combination, which includes a ring network cabinet body 110, an air tank 210 is disposed in the ring network cabinet body 110, a pressure relief hole 310 is disposed on the air tank, a pressure relief cylinder 410 is disposed on the air tank 210, an inner cavity of the pressure relief cylinder is matched with the pressure relief hole 310, an inner wall of an upper end portion of the pressure relief cylinder 410 is inwardly contracted to form a circular rubber gasket mounting seat 420, a rubber gasket mounting groove 430 is disposed on the rubber gasket mounting seat 420, and a rubber gasket 440 is disposed in the rubber gasket mounting groove 430; a sleeve 220 with an inner wall in clearance fit with the outer side wall of the pressure relief cylinder 410 is sleeved outside the pressure relief cylinder 410, a sealing mechanism for sealing the pressure relief hole 310 is arranged at an opening at the upper end of the sleeve 220, the sealing mechanism comprises a circular plate 230 in clearance fit with the pressure relief cylinder 410, and a plurality of connecting blocks 240 for connecting the circular plate 230 with the sleeve are arranged at the edge of the circular plate 230; the bottom end surface of the circular plate 230 is provided with an annular groove 450 matched with the rubber gasket mounting groove 430, and the bottom end of the circular plate 230 abuts against the rubber gasket 440; the outer side wall of the bottom end portion of the sleeve 220 is outwardly expanded along the circumferential direction thereof to form an expansion portion 250, a plurality of expansion portion through holes 510 are formed in the expansion portion 250 along the circumferential direction of the expansion portion 250, a plurality of screw holes 320 are formed in the air box 210 and located right below the expansion portion through holes 510, half-thread bolts 260 which penetrate through the expansion portion through holes 510 and are matched with the screw holes 320 are arranged in the screw holes 320, and springs 270 for tightly abutting the circular plate 230 against the rubber gasket 440 are arranged on the half-thread bolts 260.
When the fully insulated and fully sealed inflatable ring network switchgear with the fuse combined electrical apparatus in this embodiment is installed, the rubber gasket 440 is first placed in the rubber gasket installation groove 430, then the sleeve 220 is sleeved on the pressure relief cylinder 410, then the spring 270 is placed on the expansion portion 250, and finally the half-thread bolt 260 is screwed up to install the sleeve 220 on the air box 210. When high-pressure gas is generated in the gas tank 210, the sleeve 220 is jacked up by the high-pressure gas, so that the circular plate 230 moves to the upper end of the pressure relief cylinder 410, and the high-pressure gas flows out from the upper end of the pressure relief cylinder 410, thereby realizing pressure relief; after the pressure in the air tank 210 drops, the sleeve 220 drives the circular plate 230 to move downward due to the elastic force of the spring 270, so that the edge of the circular plate 230 abuts against the rubber gasket 440 to seal the air tank 210. Compared with the explosion-proof structure of the high-voltage inflatable ring main unit in the comparison document, the fully-insulated fully-sealed inflatable ring main unit with the fuse combined electrical apparatus in the embodiment not only realizes automatic pressure relief, but also is convenient to install and maintain, and simultaneously, due to the arrangement of the annular groove 450 and the rubber gasket mounting groove 430, the sealing performance of the gas tank 210 is improved better, and the gas in the gas tank 210 is prevented from flowing out of the pressure relief opening 310.
In this embodiment, the upper end of the half-threaded bolt 260 has a thread 330, the upper end of the half-threaded bolt 260 has a nut 280 engaged with the thread 330, one end of the spring 270 abuts against the nut 280, and the other end of the spring 270 abuts against the expansion portion 250.
Through the arrangement of the screw 330 and the nut 280 in the embodiment, the nut 280 can be screwed to adjust the compression amount of the spring 270, so that the problem that the air in the air tank 210 flows out from the pressure relief hole 310 due to insufficient pressure of the circular plate 230 on the rubber gasket 440 is avoided, and the problem that the air cannot be stably relieved due to overlarge pressure of the circular plate 230 on the rubber gasket 440 is also avoided.
In this embodiment, the number of the through holes 510 of the expansion portion is 4 to 6.
Through the arrangement of the number of the through holes 510 of the expansion portion in the embodiment, the situation that the circular plate 230 cannot be well abutted against the rubber gasket 440 due to the insufficient number of the springs 270 can be avoided, so that the stability of the fully-insulated and fully-sealed inflatable ring network switch device with the fuse combination electrical apparatus is better improved when the switch device is used.
In this embodiment, the sum of the depth value of the annular groove 450 and the thickness value of the rubber gasket 440 is 0.2cm to 0.5cm greater than the depth value of the rubber gasket mounting groove 430.
By setting the sum of the depth of the annular groove 450 and the thickness of the rubber gasket 440 to be 0.2cm to 0.5cm greater than the depth of the rubber gasket mounting groove 430 in this embodiment, the edge of the circular plate 230 can better abut against the rubber gasket 440, so that the edge of the circular plate 230 can more stably seal the pressure relief cylinder 410.
In this embodiment, a bump 460 located right below the connection block 240 is disposed on an outer side wall of the pressure relief cylinder 410, a bump through hole 470 is disposed on the bump 460, and an optical axis 480 in clearance fit with the bump through hole 470 is disposed on the connection block 240.
Through the arrangement of the protrusion 460, the protrusion through hole 470 and the optical axis 480 in the embodiment, the sleeve 220 can be prevented from shaking when moving on the pressure relief cylinder 410, so that the stability of the sleeve 220 when moving on the pressure relief cylinder 410 is improved.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a full insulation totally enclosed inflatable looped netowrk switchgear with fuse combined electrical apparatus, includes looped netowrk cabinet body (110), is equipped with air tank (210) in looped netowrk cabinet body (110), is equipped with pressure release hole (310) on the air tank, its characterized in that: a pressure relief cylinder (410) with an inner cavity matched with the pressure relief hole (310) is arranged on the air box (210), the inner wall of the upper end part of the pressure relief cylinder (410) is inwards contracted to form a circular rubber gasket mounting seat (420), a rubber gasket mounting groove (430) is arranged on the rubber gasket mounting seat (420), and a rubber gasket (440) is arranged in the rubber gasket mounting groove (430); a sleeve (220) with the inner wall in clearance fit with the outer side wall of the pressure relief cylinder (410) is sleeved outside the pressure relief cylinder (410), a sealing mechanism used for sealing the pressure relief hole (310) is arranged at an opening at the upper end part of the sleeve (220), the sealing mechanism comprises a circular plate (230) in clearance fit with the pressure relief cylinder (410), and a plurality of connecting blocks (240) for connecting the circular plate (230) and the sleeve are arranged at the edge of the circular plate (230); the bottom end surface of the circular plate (230) is provided with an annular groove (450) matched with the rubber gasket mounting groove (430), and the bottom end part of the circular plate (230) is abutted against the rubber gasket (440); the lateral wall of sleeve (220) bottom portion outwards expands along its circumference and forms expansion portion (250), be equipped with expansion portion through-hole (510) that a plurality of set up along expansion portion (250) circumference on expansion portion (250), be equipped with a plurality of screw (320) that are located under expansion portion through-hole (510) on gas tank (210), be equipped with in screw (320) and pass expansion portion through-hole (510) and with screw (320) matched with half thread bolt (260), be equipped with on half thread bolt (260) and be used for supporting spring (270) tight on rubber packing ring (440) with plectane (230).
2. The fully insulated and fully sealed inflatable ring network switchgear with the fuse combination apparatus as claimed in claim 1, wherein: the upper end of the half-thread bolt (260) is provided with threads (330), the upper end of the half-thread bolt (260) is provided with a nut (280) matched with the threads (330), one end of the spring (270) abuts against the nut (280), and the other end of the spring (270) abuts against the expansion part (250).
3. The fully insulated and fully sealed inflatable ring network switchgear with the fuse combination apparatus as claimed in claim 1, wherein: the number of the expansion part through holes (510) is 4-6.
4. The fully insulated and fully sealed inflatable ring network switchgear with the fuse combination apparatus as claimed in claim 1, wherein: the sum of the depth value of the annular groove (450) and the thickness value of the rubber gasket (440) is 0.2 cm-0.5 cm more than the depth value of the rubber gasket mounting groove (430).
5. The fully insulated and fully sealed inflatable ring network switchgear with the fuse combination apparatus as claimed in claim 1, wherein: the outer side wall of the pressure relief cylinder (410) is provided with a convex block (460) located right below the connecting block (240), the convex block (460) is provided with a convex block through hole (470), and the connecting block (240) is provided with an optical axis (480) in clearance fit with the convex block through hole (470).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021739879.9U CN212811088U (en) | 2020-08-19 | 2020-08-19 | All-insulation all-sealed inflatable ring network switch equipment with fuse combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021739879.9U CN212811088U (en) | 2020-08-19 | 2020-08-19 | All-insulation all-sealed inflatable ring network switch equipment with fuse combined electrical apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN212811088U true CN212811088U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021739879.9U Active CN212811088U (en) | 2020-08-19 | 2020-08-19 | All-insulation all-sealed inflatable ring network switch equipment with fuse combined electrical apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114465152A (en) * | 2022-01-17 | 2022-05-10 | 上海众杰电力科技有限公司 | Gas tank of gas insulated switchgear and processing technology thereof |
-
2020
- 2020-08-19 CN CN202021739879.9U patent/CN212811088U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114465152A (en) * | 2022-01-17 | 2022-05-10 | 上海众杰电力科技有限公司 | Gas tank of gas insulated switchgear and processing technology thereof |
| CN114465152B (en) * | 2022-01-17 | 2024-03-22 | 上海众杰电力科技有限公司 | Gas tank of gas insulated switchgear and processing technology thereof |
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