CN203325791U - High-voltage vacuum circuit breaker direct-acting sealing device - Google Patents

High-voltage vacuum circuit breaker direct-acting sealing device Download PDF

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Publication number
CN203325791U
CN203325791U CN2013203582113U CN201320358211U CN203325791U CN 203325791 U CN203325791 U CN 203325791U CN 2013203582113 U CN2013203582113 U CN 2013203582113U CN 201320358211 U CN201320358211 U CN 201320358211U CN 203325791 U CN203325791 U CN 203325791U
Authority
CN
China
Prior art keywords
vacuum circuit
moving contact
circuit breaker
aeration tank
adapter sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2013203582113U
Other languages
Chinese (zh)
Inventor
顾如清
郭卫春
季建
胡元敏
赵创乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI ZHONGKE ELECTRIC EQUIPMENT CO Ltd
Original Assignee
WUXI ZHONGKE ELECTRIC EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI ZHONGKE ELECTRIC EQUIPMENT CO Ltd filed Critical WUXI ZHONGKE ELECTRIC EQUIPMENT CO Ltd
Priority to CN2013203582113U priority Critical patent/CN203325791U/en
Application granted granted Critical
Publication of CN203325791U publication Critical patent/CN203325791U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a high-voltage vacuum circuit breaker direct-acting sealing device. The high-voltage vacuum circuit breaker direct-acting sealing device comprises a vacuum circuit breaker box. An insulating pull rod is installed in the vacuum circuit breaker box, wherein one end of the insulating pull rod is installed with a connecting sleeve through a connecting pin. The high-voltage vacuum circuit breaker direct-acting sealing device further comprises an air inflation box connected with a vacuum circuit breaker. A moving contact for driving the rectilinear motion of the air inflation box is installed in the air inflation box through a transmission mechanism, wherein the moving contact passes through the air inflation box and connected with the connecting sleeve. A flange sleeve is installed on the moving contact located outside the air inflation box, and a bellows is further installed on the outer circumferential surface of the moving contact, wherein the bellows is located between the connecting sleeve and the flange sleeve. According to the utility model, the bellows direct-acting moving sealing technology is utilized, and the structure of component parts including the connecting sleeve, the bellows and the flange sleeve and a seal ring is adopted, so the air in the air inflation box will not be leaked by the vacuum circuit breaker moving contact during the rectilinear motion process so as to ensure the pressure of the air inflation box, so that internal electrical elements are in normal operation under the pressure so as to provide a guarantee for the electrical performance of electrical equipment.

Description

High-pressure vacuum breaker Direct Action Type sealing device
Technical field
The utility model relates to sealing device, the high-pressure vacuum breaker Direct Action Type dynamic sealing device that especially a kind of explosion-proof electrical appliance product that controlled by automation complete set of equipments control system for the colliery industry is used.
Background technology
The colliery industry, in each process of the production of mining, coal separation processing, transportation and storage, often may be revealed or various flammable explosive gas and the various dust of shedding that overflow.This class material, with after air mixes, may become the mixture with explosion hazard, when the concentration of mixture reaches the explosion ratio scope, once occur that burning things which may cause a fire disaster can set off an explosion and the serious accident such as breaking out of fire.Therefore the electric equipment used in the hazardous environment of colliery industry all must possess explosion-proof performance.
The mine explosion-suppression positive voltage high-voltage distribution is a kind of electrical apparatus for explosive atmospheres, and it adopts the positive pressure type structure, and electric elements all are installed in aeration tank, guarantees the projecting pressure of pressure of aeration tank internal protection gas, in order to avoid explosive mixture enters in aeration tank.When normal operation, the numerical value that aeration tank air pressure is certain higher than atmospheric pressure, when inflating loading pressure lower than certain numerical value, send at once and report to the police or cut off the electricity supply.The spark of device interior, electric arc do not allow to outside, to release from any gap.
Be provided with vacuum circuit-breaker in the mine explosion-suppression positive voltage high-voltage distribution, vacuum circuit-breaker has the outer operating mechanism transmission moving contact of aeration tank, the moving contact motion mode is rectilinear motion, moving contact is connected with bellows component, thus moving contact needs in motion process and aeration tank between form the Direct Action Type movable sealing.In prior art, realize that the straight shell type dynamic seal of this function is comprised of sealing ring and seal groove, under different movable sealing conditions, the seal form adopted is different.Its shortcoming is: produce at the volley the wearing and tearing between gap between straight shell type dynamic seal and sealing ring, in use sealing property reduces, and easily produces the existence of gas leakage.
The utility model content
The applicant is unreliable for sealing in above-mentioned existing production technology, easily produce the shortcomings such as gas leak phenomenon, a kind of high-pressure vacuum breaker Direct Action Type sealing device rational in infrastructure is provided, thereby improves the sealing property between aeration tank and moving contact, sealing is reliable, can not produce the phenomenon of gas leakage.
The technical scheme that the utility model adopts is as follows:
A kind of high-pressure vacuum breaker Direct Action Type sealing device, comprise the vacuum circuit-breaker casing, in described vacuum circuit-breaker casing, insulated tension pole is installed, and an end of described insulated tension pole is equipped with adapter sleeve by connecting pin; Also comprise the aeration tank be connected with vacuum circuit-breaker, in described aeration tank, by transmission mechanism, be equipped with and drive its straight-line moving contact, described moving contact is connected with adapter sleeve through aeration tank; Be positioned on the moving contact of aeration tank outer end the flange cover is installed, bellows also is installed on the outer circumference surface of described moving contact, described bellows is between adapter sleeve and flange cover.
As further improvement in the technical proposal:
The structure of described adapter sleeve is: comprise the adapter sleeve body, cylindrical structural is extended respectively at the two ends of described adapter sleeve, one end cylindrical structural is connected with an end of insulated tension pole, be provided with external screw thread on the outer circumference surface of the cylindrical structural of the other end, be provided with the internal thread be connected with its external screw thread on described moving contact;
Described flange puts and has seal groove that sealing ring is installed and the screwed hole fastening with aeration tank, and described flange cover is anchored on the wall of aeration tank by sealing ring, set bolt, nut, spring washer.
The beneficial effects of the utility model are as follows:
The utility model utilizes bellows Direct Action Type dynamic sealing technology, adopt the structure of adapter sleeve, bellows, flange cover building block and sealing ring, make movable contact of vacuum circuit breaker can not make the Leakage Gas in aeration tank in the rectilinear motion process, guarantee the pressure of aeration tank, make the normally operation under pressure of inner electric elements, for the electric property of electric equipment provides safeguard.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The structural representation that Fig. 2 is the utility model Direct Action Type dynamic sealing assembly (partial sectional view).
The A that Fig. 3 is Fig. 2 is to view.
The structural representation (partial sectional view) on aeration tank that is installed on that Fig. 4 is the utility model Direct Action Type dynamic sealing assembly.
Wherein: 1, adapter sleeve; 2, bellows; 3, flange cover; 4, aeration tank; 5, sealing ring; 6, set bolt; 7, nut; 8, spring washer; 9, connecting pin; 10, insulated tension pole; 11, vacuum circuit-breaker casing; 12, moving contact; 13, transmission mechanism; 14, seal groove; 15, screwed hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the high-pressure vacuum breaker Direct Action Type sealing device of the present embodiment, comprise vacuum circuit-breaker casing 11, insulated tension pole 10 is installed in vacuum circuit-breaker casing 11, an end of insulated tension pole 10 is equipped with adapter sleeve 1 by connecting pin 9; Also comprise the aeration tank 4 be connected with vacuum circuit-breaker, in aeration tank 4, by transmission mechanism 13, be equipped with and drive its straight-line moving contact 12, moving contact 12 is connected with adapter sleeve 1 through aeration tank 4; Be positioned on the moving contact 12 of aeration tank 4 outer ends flange cover 3 is installed, bellows 2 also is installed on the outer circumference surface of moving contact 12, bellows 2 is between adapter sleeve 1 and flange cover 3.
The structure of adapter sleeve 1 is: comprise adapter sleeve 1 body, cylindrical structural is extended respectively at the two ends of adapter sleeve 1, one end cylindrical structural is connected with an end of insulated tension pole 10, be provided with external screw thread on the outer circumference surface of the cylindrical structural of the other end, be provided with the internal thread be connected with its external screw thread on moving contact 12.
Have the seal groove 14 of installation sealing ring 5 and the screwed hole 15 fastening with aeration tank 4 on flange cover 3, flange cover 3 is anchored on the wall of aeration tank 4 by sealing ring 5, set bolt 6, nut 7, spring washer 8.
The utility model is rational in infrastructure, form the self-action dynamic sealing assembly by adapter sleeve 1, bellows 2, flange cover 3, it is easy for installation, connect reliable, and cooperatively interacting by self-action dynamic sealing assembly and sealing ring 5, make movable contact of vacuum circuit breaker 12 more effectively guarantee the pressure of aeration tank 4 interior gases in straight-line process, and the gas in aeration tank 4 is not leaked.
Above description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection range of the present utility model, can be done any type of modification.

Claims (3)

1. a high-pressure vacuum breaker Direct Action Type sealing device, it is characterized in that: comprise vacuum circuit-breaker casing (11), insulated tension pole (10) is installed in described vacuum circuit-breaker casing (11), and an end of described insulated tension pole (10) is equipped with adapter sleeve (1) by connecting pin (9); Also comprise the aeration tank (4) be connected with vacuum circuit-breaker, in described aeration tank (4), by transmission mechanism (13), be equipped with and drive its straight-line moving contact (12), described moving contact (12) is connected with adapter sleeve (1) through aeration tank (4); Be positioned on the moving contact (12) of aeration tank (4) outer end flange cover (3) is installed, bellows (2) also is installed on the outer circumference surface of described moving contact (12), described bellows (2) is positioned between adapter sleeve (1) and flange cover (3).
2. high-pressure vacuum breaker Direct Action Type sealing device as claimed in claim 1, it is characterized in that: the structure of described adapter sleeve (1) is: comprise adapter sleeve (1) body, cylindrical structural is extended respectively at the two ends of described adapter sleeve (1), one end cylindrical structural is connected with an end of insulated tension pole (10), be provided with external screw thread on the outer circumference surface of the cylindrical structural of the other end, described moving contact is provided with the internal thread be connected with its external screw thread on (12).
3. high-pressure vacuum breaker Direct Action Type sealing device as claimed in claim 1, it is characterized in that: have the seal groove (14) of installation sealing ring (5) and the screwed hole (15) fastening with aeration tank (4) on described flange cover (3), described flange cover (3) is anchored on the wall of aeration tank (4) by sealing ring (5), set bolt (6), nut (7), spring washer (8).
CN2013203582113U 2013-06-21 2013-06-21 High-voltage vacuum circuit breaker direct-acting sealing device Expired - Fee Related CN203325791U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203582113U CN203325791U (en) 2013-06-21 2013-06-21 High-voltage vacuum circuit breaker direct-acting sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203582113U CN203325791U (en) 2013-06-21 2013-06-21 High-voltage vacuum circuit breaker direct-acting sealing device

Publications (1)

Publication Number Publication Date
CN203325791U true CN203325791U (en) 2013-12-04

Family

ID=49665103

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203582113U Expired - Fee Related CN203325791U (en) 2013-06-21 2013-06-21 High-voltage vacuum circuit breaker direct-acting sealing device

Country Status (1)

Country Link
CN (1) CN203325791U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103854916A (en) * 2014-03-19 2014-06-11 无锡开辟科技有限公司 Combined direct-acting sealing device for breaker
CN103311048B (en) * 2013-06-21 2016-03-16 无锡中科电气设备有限公司 High-pressure vacuum breaker Direct Action Type sealing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103311048B (en) * 2013-06-21 2016-03-16 无锡中科电气设备有限公司 High-pressure vacuum breaker Direct Action Type sealing device
CN103854916A (en) * 2014-03-19 2014-06-11 无锡开辟科技有限公司 Combined direct-acting sealing device for breaker

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131204

Termination date: 20180621