CN203038806U - Switch apparatus for explosion-proof electric device and explosion-proof electric device - Google Patents
Switch apparatus for explosion-proof electric device and explosion-proof electric device Download PDFInfo
- Publication number
- CN203038806U CN203038806U CN 201220696775 CN201220696775U CN203038806U CN 203038806 U CN203038806 U CN 203038806U CN 201220696775 CN201220696775 CN 201220696775 CN 201220696775 U CN201220696775 U CN 201220696775U CN 203038806 U CN203038806 U CN 203038806U
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- CN
- China
- Prior art keywords
- electrical apparatus
- explosive atmospheres
- switch shaft
- housing
- switching device
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- 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.)
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Abstract
The utility model discloses a switch apparatus for an explosion-proof electric device. The switch apparatus for the explosion-proof electric device comprises a switch shaft, a compression spring, a stopping part and a switch circuit board, wherein the switch shaft passes through a housing of the explosion-proof electric device. A first end of the switch shaft is arranged in the housing and a second end of the switch shaft is mounted outside of the housing. The compression spring is used for driving the second end of the switch shaft to be far from the housing. The stopping part is used for preventing the first end of the switch shaft from retreating from the housing. The switch circuit board is fixed inside of the housing. A switch button on the switch circuit board is aligned with the first end of the switch shaft. The switch shaft touches the switch circuit board mounted on the housing by deformation of the compression spring to realize switch-on and switch-off. The switch apparatus for the explosion-proof electric device provided by the utility model has a simple and reasonable structure.
Description
Technical field
The utility model relates to for the switching device of electrical apparatus for explosive atmospheres and electrical apparatus for explosive atmospheres, especially the switching device of the electrical apparatus for explosive atmospheres used of colliery.
Background technology
At present, various electrical apparatus for explosive atmospheres are provided with electrical switchgear, and have keypress function.Yet, because the complex structure of switching device, and reasonable inadequately, electrical apparatus for explosive atmospheres is out of order easily, can not satisfies requirement of explosion proof.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of switching device for electrical apparatus for explosive atmospheres, and it is simple and reasonable for structure.
The utility model is achieved through the following technical solutions: a kind of switching device for electrical apparatus for explosive atmospheres, and described switching device for electrical apparatus for explosive atmospheres comprises:
Switch shaft is arranged on the housing of described electrical apparatus for explosive atmospheres, and first end of described switch shaft is positioned at the inside of described housing, and second end of described switch shaft is positioned at the outside of described housing;
The compression spring is used for ordering about second end of described switch shaft away from described housing;
Backstopping assembly is used for preventing that first end of described switch shaft from withdrawing from described housing; And
Switching circuit board be fixed on the inboard of described housing, and the switch key on the described switching circuit board aligns with first end of described switch shaft.
As further improvement in the technical proposal, described switching device for electrical apparatus for explosive atmospheres also comprises installation base, and described installation base is arranged in described housing, and described installation base is provided with the installing hole that cooperates with described switch shaft.
As further improvement in the technical proposal, described installation base is connected with described housing seal.
As further improvement in the technical proposal, an end of the outside that is positioned at described housing of described installation base is provided with the accommodation hole of second end that holds described switch shaft.
As further improvement in the technical proposal, described compression spring housing is located on the described switch shaft, and described compression spring is positioned at described accommodation hole.
As further improvement in the technical proposal, described backstopping assembly is split washer, and first end of described switch shaft is provided with the draw-in groove with described split washer clamping.
As further improvement in the technical proposal, described switch shaft is the copper post.
As further improvement in the technical proposal, described switching circuit board is fixed on described housing inboard by screw bolt and nut.
The utility model also provides a kind of electrical apparatus for explosive atmospheres, and described electrical apparatus for explosive atmospheres comprises the above-mentioned switching device that is used for electrical apparatus for explosive atmospheres.
As further improvement in the technical proposal, described electrical apparatus for explosive atmospheres is the flame-proof mine lithium-ions battery.
The beneficial effects of the utility model are: switch shaft is installed on the housing, deflection by the compression spring touches switching circuit board, the realization unlatching closure that is installed on the housing, and the switching device for electrical apparatus for explosive atmospheres of the present utility model is simple and reasonable for structure.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, below especially exemplified by embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation according to the switching device that is used for electrical apparatus for explosive atmospheres of an embodiment of the present utility model.
Fig. 2 is the structural representation after the switch shaft of the switching device that is used for electrical apparatus for explosive atmospheres of Fig. 1 assembles with the compression spring.
Fig. 3 is the cut-away illustration at switch shaft place of the switching device that is used for electrical apparatus for explosive atmospheres of Fig. 1.
Fig. 4 is the package assembly schematic diagram of the switching device that is used for electrical apparatus for explosive atmospheres of Fig. 1.
Embodiment
Introduce the specific embodiment of the switching device for electrical apparatus for explosive atmospheres of the present utility model below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, described switching device for electrical apparatus for explosive atmospheres comprises switch shaft 1, compression spring 2, backstopping assembly 4 and switching circuit board 5.Wherein, switch shaft 1 is arranged on the housing 3 of described electrical apparatus for explosive atmospheres, and first end of described switch shaft 1 is positioned at the inside of described housing 3, and second end of described switch shaft 1 is positioned at the outside of described housing 3.The compression spring is used for ordering about second end of described switch shaft 1 away from described housing 3.Backstopping assembly 4 is used for preventing that first end of described switch shaft from withdrawing from described housing.Switching circuit board 5 is fixed on 3 inboard of described housing, and the switch key (not shown) on the described switching circuit board 5 aligns with first end of described switch shaft 1.Those of ordinary skills have known the structure of the switch key on the switching circuit board 5, do not give unnecessary details.
In addition, described switching device for electrical apparatus for explosive atmospheres also comprises installation base 7.Described installation base 7 is arranged in described housing 3, and described installation base 7 is provided with the installing hole (not label) that cooperates with described switch shaft 1, and switch shaft 1 is inserted in this installing hole.Wherein, described installation base 7 preferably is tightly connected with described housing 3.Preferably, an end of the outside that is positioned at described housing 3 of described installation base 7 is provided with the accommodation hole 8 of second end that holds described switch shaft.As shown in Figures 2 and 3, described compression spring 2 is set on the described switch shaft 1, and described compression spring 2 is positioned at described accommodation hole 8.
As shown in Figures 2 and 3, described backstopping assembly 4 is split washer 4, and first end of described switch shaft 1 is provided with the draw-in groove 6 with described split washer 4 clampings.
In this specific embodiment, described switch shaft 1 is the copper post.Switch shaft 1 is selected the fine copper material for use, in order to have good abrasion resistance.
Assembling process at the switching device that is used for electrical apparatus for explosive atmospheres at first is enclosed within described compression spring 2 on the switch shaft 1; Then described switch shaft 1 is packed in the installing hole of installation base 7 of described housing 3, and utilize split washer 4 fixing; At last, utilize bolt, nut and pad that switching circuit board 5 is fixed on housing 3 inboard 4 mounting hole site that arrange.
According to the switching device for electrical apparatus for explosive atmospheres of the present utility model, by selecting the compression spring with better elastic variable for use, switching device is quick on the draw.And switch shaft is selected the fine copper material for use, has good abrasion resistance.Switch shaft is installed on the housing by split washer, forms explosion-proof layer by the fit clearance with housing then.Switch shaft touches the switch key, the realization that are installed in the switching circuit board on the housing by the deflection that will compress spring and opens closed.That switching device for electrical apparatus for explosive atmospheres of the present utility model has at least is simple and reasonable for structure, easy for installation, use the advantage reliable, that explosion-proof performance is good, can be widely used on the various explosion-proof electrifications.
Above embodiment has been described in detail the utility model, and formation is to restriction of the present utility model but these are not.Protection range of the present utility model is not limited with above-mentioned execution mode, as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (10)
1. switching device that is used for electrical apparatus for explosive atmospheres is characterized in that described switching device for electrical apparatus for explosive atmospheres comprises:
Switch shaft is arranged on the housing of described electrical apparatus for explosive atmospheres, and first end of described switch shaft is positioned at the inside of described housing, and second end of described switch shaft is positioned at the outside of described housing;
The compression spring is used for ordering about second end of described switch shaft away from described housing;
Backstopping assembly is used for preventing that first end of described switch shaft from withdrawing from described housing; And
Switching circuit board be fixed on the inboard of described housing, and the switch key on the described switching circuit board aligns with first end of described switch shaft.
2. the switching device for electrical apparatus for explosive atmospheres according to claim 1, it is characterized in that, described switching device for electrical apparatus for explosive atmospheres also comprises installation base, and described installation base is arranged in described housing, and described installation base is provided with the installing hole that cooperates with described switch shaft.
3. the switching device for electrical apparatus for explosive atmospheres according to claim 2 is characterized in that, described installation base is connected with described housing seal.
4. the switching device for electrical apparatus for explosive atmospheres according to claim 2 is characterized in that, an end of the outside that is positioned at described housing of described installation base is provided with the accommodation hole of second end that holds described switch shaft.
5. the switching device for electrical apparatus for explosive atmospheres according to claim 4 is characterized in that, described compression spring housing is located on the described switch shaft, and described compression spring is positioned at described accommodation hole.
6. the switching device for electrical apparatus for explosive atmospheres according to claim 2 is characterized in that, described backstopping assembly is split washer, and first end of described switch shaft is provided with the draw-in groove with described split washer clamping.
7. the switching device for electrical apparatus for explosive atmospheres according to claim 1 is characterized in that, described switch shaft is the copper post.
8. the switching device for electrical apparatus for explosive atmospheres according to claim 1 is characterized in that, described switching circuit board is fixed on described housing inboard by screw bolt and nut.
9. an electrical apparatus for explosive atmospheres is characterized in that, described electrical apparatus for explosive atmospheres comprises each described switching device for electrical apparatus for explosive atmospheres of claim 1 to 8.
10. electrical apparatus for explosive atmospheres according to claim 9 is characterized in that, described electrical apparatus for explosive atmospheres is the flame-proof mine lithium-ions battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696775 CN203038806U (en) | 2012-12-17 | 2012-12-17 | Switch apparatus for explosion-proof electric device and explosion-proof electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696775 CN203038806U (en) | 2012-12-17 | 2012-12-17 | Switch apparatus for explosion-proof electric device and explosion-proof electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038806U true CN203038806U (en) | 2013-07-03 |
Family
ID=48690903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696775 Expired - Fee Related CN203038806U (en) | 2012-12-17 | 2012-12-17 | Switch apparatus for explosion-proof electric device and explosion-proof electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421804A (en) * | 2013-08-19 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | LED explosion-proof firefighting emergency lamp |
| CN106531524A (en) * | 2016-11-28 | 2017-03-22 | 北京瑞赛长城航空测控技术有限公司 | Explosive-proof rotary knob mechanism |
-
2012
- 2012-12-17 CN CN 201220696775 patent/CN203038806U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421804A (en) * | 2013-08-19 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | LED explosion-proof firefighting emergency lamp |
| CN104421804B (en) * | 2013-08-19 | 2018-05-18 | 深圳市海洋王照明工程有限公司 | The explosion-proof fire emergency lamps of LED |
| CN106531524A (en) * | 2016-11-28 | 2017-03-22 | 北京瑞赛长城航空测控技术有限公司 | Explosive-proof rotary knob mechanism |
| CN106531524B (en) * | 2016-11-28 | 2019-05-31 | 北京瑞赛长城航空测控技术有限公司 | Flame proof Knob mechanisms |
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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: 20130703 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |