CN202817357U - Explosion-proof plugs with an insulation sleeve - Google Patents
Explosion-proof plugs with an insulation sleeve Download PDFInfo
- Publication number
- CN202817357U CN202817357U CN 201220426171 CN201220426171U CN202817357U CN 202817357 U CN202817357 U CN 202817357U CN 201220426171 CN201220426171 CN 201220426171 CN 201220426171 U CN201220426171 U CN 201220426171U CN 202817357 U CN202817357 U CN 202817357U
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- plug
- conductive
- explosion
- spring
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Abstract
An explosion-proof plug with an insulation sleeve comprises a plug base body, an outer conduction wire group arranged outside the plug base body and connected with a conductive spring group, and a conductive plug group with a front end extending outside the plug base body, wherein the final end of the conductive plug group and the final end of the conductive spring group form a conductive contact group, the middle end of the conductive contact group is provided with a worm wheel connected with a worm push rod by a gear worm, a spring is arranged on one side of the conductive spring group, one end of the spring is fixedly connected with one end of the conductive spring group, the other end of the spring is fixedly connected with the plug base body, and the conductive contact group is sealed in the insulation sleeve. The explosion-proof plug with an insulation sleeve has features of simple and compact structure, low manufacturing cost, convenient maintenance, reliable sealing, high safety performance, wide application range, and long service life. The explosion-proof plug is used to effectively prevent the outside air from entering into the inner part of the plug, and conveniently prevent the surrounding flammable and explosive gas, dust from being ignited and detonated by electric spark generated when a switch is closed or open.
Description
Technical field
The utility model relates to a kind of explosion-proof plug that is provided with insulating case.
Background technology
Plug is a kind of electric parts very commonly used, but the flame-proof switch that is specifically designed to the Different high risk sites that is rich in flammable explosive gas, dust is also considerably less.Although existing explosion-proof plug also has and the similar function of existing ordinary plug, it can not show a candle to existing ordinary plug and socket break-make convenience, and functional reliability is low, and the scope of application is less.
Chinese patent 200720183096.5 discloses a kind of electric switch, comprises pedestal, NC fixed contact, NO fixed contact, moving contact, push bar assembly, back-moving spring, protective cover and terminal screw that push bar assembly is resetted; Described worm screw push bar assembly comprises that knob, worm screw and an end are arranged on push rod and the other end and are arranged on action shell fragment on the moving contact; Also comprise the pressure open circuit part that is arranged on the rotatable certain angle in the pedestal; Described push bar assembly also comprises the catch bar of forcing the open circuit part to rotate for promoting; Described pressure open circuit part comprises roll shaft, is used for forcing to promote the pressure open circuit pushing block of moving contact and being used for being pushed the force rod that bar promotes.Its manufacturing cost is high, and push bar assembly is fragile, and functional reliability is relatively poor.
The utility model content
The technical problems to be solved in the utility model is, overcomes the defects that prior art exists, and provides a kind of functional reliability high, the explosion-proof plug that is provided with insulating case applied widely.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of explosion-proof plug that is provided with insulating case, comprise plug body, plug body is provided with one group of external wire group outward, the external wire group is connected with the electroconductive elastic sheet group, conductive plug group head end stretches out outside the plug body, conductive plug group end and electroconductive elastic sheet group end consist of the conductive contact group, the electroconductive elastic sheet group is connected with the worm screw push rod by the worm gear that is connected on it, electroconductive elastic sheet group one side is provided with spring, spring one end and electroconductive elastic sheet group one end are connected, the spring other end and plug body are connected, and the sealing of conductive contact group is located in the insulating case.
Further, described insulating case is preferably rubber sleeve.
Further, described push rod is preferably the worm screw push rod.
Further, described worm screw push rod end should be provided with knob.
The utility model is simple in structure, compact, and low cost of manufacture is easy to maintenance. sealing is reliable, and security performance is high, and is applied widely, long service life.Use the utility model, can effectively completely cut off ambient atmos and enter plug inside, the electric spark that is conducive to avoid switch closure, generation when disconnecting ignites, ignites on every side flammable explosive gas, dust.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
With reference to Fig. 1, present embodiment comprises plug body 4, be provided with one group of external wire group 1 outside the plug body 4, external wire group 1 is connected with electroconductive elastic sheet group 2, conductive plug group 7 head ends stretch out outside the plug body 4, conductive plug group 7 terminal and electroconductive elastic sheet group 2 terminal formation conductive contact groups 8, electroconductive elastic sheet group 2 is connected mutually with worm gear 10, worm gear push rod 5 one sides are provided with spring 3, spring 3 one ends are connected mutually with worm gear push rod 5, spring 3 other ends and plug body 4 are connected, and 8 sealings of conductive contact group are located in the insulating case 6.
Described insulating case 6 is rubber sleeve.
Described push rod 5 is the worm screw push rod.
Described worm screw push rod 5 ends are provided with knob 5-1.
During with the explosion-proof plug insertion socket of the utility model, rotary worm push rod 5,9 is for being connected in the worm screw part on 5.Under the impetus of worm screw push rod 5, make the worm gear 10 on the electroconductive elastic sheet group 2 that axial displacement occur, conductive tips does not contact with conductive plug group 7 ends in the drive 2, and namely electroconductive elastic sheet group 2 disconnects with conductive contact group 8.Behind the explosion-proof plug insertion socket with the utility model, reverse rotation worm screw push rod 5, worm screw push rod 5 drives that worm gear 10 on the electroconductive elastic sheet groups 2 is oppositely mobile to make 2 contact conduction with 8 conductive contact, and spring 3 is so that 2,8 contact fit clearance more tight and the elimination worm and gear.
Under the seal protection effect of rubber group 6, conductive contact group 8 does not contact with outside air, can play explosion-proof.The utility model is by the rubber seal technology, so that the isolated ambient atmos of contact, is conducive to the electric spark avoiding switch closure, produce when disconnecting igniting, igniting on every side flammable explosive gas, dust.
Claims (4)
1. explosion-proof plug that is provided with insulating case, comprise plug body, it is characterized in that, plug body is provided with one group of external wire group outward, the external wire group is connected with the electroconductive elastic sheet group, conductive plug group head end stretches out outside the plug body, conductive plug group end and electroconductive elastic sheet group end consist of the conductive contact group, the electroconductive elastic sheet group is connected with the worm screw push rod by worm gear on it, electroconductive elastic sheet group one side is provided with spring, spring one end and electroconductive elastic sheet group one end are connected, and the spring other end and plug body are connected, and the sealing of conductive contact group is located in the insulating case.
2. the explosion-proof plug that is provided with insulating case according to claim 1 is characterized in that, described insulating case is rubber sleeve.
3. the explosion-proof plug that is provided with insulating case according to claim 1 and 2 is characterized in that, described push rod is the worm screw push rod.
4. the explosion-proof plug that is provided with insulating case according to claim 1 and 2 is characterized in that, described push rod end is provided with knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426171 CN202817357U (en) | 2012-08-27 | 2012-08-27 | Explosion-proof plugs with an insulation sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426171 CN202817357U (en) | 2012-08-27 | 2012-08-27 | Explosion-proof plugs with an insulation sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817357U true CN202817357U (en) | 2013-03-20 |
Family
ID=47876177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220426171 Expired - Fee Related CN202817357U (en) | 2012-08-27 | 2012-08-27 | Explosion-proof plugs with an insulation sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801041A (en) * | 2012-08-27 | 2012-11-28 | 刘立文 | Anti-explosion plug |
-
2012
- 2012-08-27 CN CN 201220426171 patent/CN202817357U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801041A (en) * | 2012-08-27 | 2012-11-28 | 刘立文 | Anti-explosion plug |
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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 |
Granted publication date: 20130320 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |