CN202405143U - Explosion-proof lighting switch - Google Patents
Explosion-proof lighting switch Download PDFInfo
- Publication number
- CN202405143U CN202405143U CN2011205488174U CN201120548817U CN202405143U CN 202405143 U CN202405143 U CN 202405143U CN 2011205488174 U CN2011205488174 U CN 2011205488174U CN 201120548817 U CN201120548817 U CN 201120548817U CN 202405143 U CN202405143 U CN 202405143U
- Authority
- CN
- China
- Prior art keywords
- lower cover
- explosion
- cover
- chamber lid
- lighting switch
- 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 - Lifetime
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- Switch Cases, Indication, And Locking (AREA)
Abstract
An explosion-proof lighting switch solves the problems of poor explosion proofing and instability in connection of a cavity cover and a lower cover of an existing explosion-proof lighting switch, and comprises an upper cover, the cavity cover and the lower cover. The cavity cover and the lower cover are in threaded connection, the cavity cover is provided with an external thread, and the lower cover is provided with an internal thread matched with the external thread of the cavity cover. The cavity cover and the lower cover are in threaded connection, so that the explosion-proof lighting switch is better in tightness and more stable in explosion proofing performance, and strength of the explosion-proof lighting switch is improved to some extent.
Description
Technical field
The utility model relates to appliance field, is specifically related to a kind of anti-blast light switch.
Background technology
We know, in the electrified epoch, all are a mass of various electrical equipment in each family, and the bound naturally switch of electrical equipment is arranged.Switch is to be used for the element of make-and-break contact, is applied in various electronic equipments, the household electrical appliance.Anti-blast light switch then is the hazardous area that is used in imflammable gas, dust existence, needs a safety, realizes the break-make of circuit reliably.Mostly the chamber lid of existing anti-blast light switch is to be connected by screw with lower cover, leans on seal to seal.Owing in special occasions, use, screw is prone to be corroded, and is loosening, causes the intensity of sealing property and anti-blast light switch to reduce, and has great potential safety hazard.
Summary of the invention
For solving problem in the background technology, the utility model provides a kind of good seal performance, connects reliable anti-blast light switch.
The technical scheme of the utility model is: a kind of anti-blast light switch, comprise loam cake, chamber lid and lower cover, and adopt between described chamber lid and the lower cover to be threaded.
As a kind of improvement of the utility model, described chamber covers and is provided with external screw thread, described down cover to be provided with the chamber cover the internal thread that external screw thread matches.
Another kind as the utility model improves, and also is provided with sealing ring between described chamber lid and the lower cover.
The beneficial effect of the utility model is, adopts between chamber lid and the lower cover to be threaded, and sealing property is better, and explosion-proof performance is more stable, has also increased the intensity of anti-blast light switch to a certain extent.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Among the figure, loam cake 1, chamber lid 2, lower cover 3, sealing ring 4.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
By shown in Figure 1, a kind of anti-blast light switch comprises loam cake 1, chamber lid 2 and lower cover 3, adopts between described chamber lid 2 and the lower cover 3 to be threaded.And chamber lid 2 is provided with external screw thread, and described lower cover 3 is provided with internal thread and matches with the external screw thread that the chamber is covered on 2.Also be provided with sealing ring 4 between described chamber lid 2 and the lower cover 3.Adopt between chamber lid and the lower cover to be threaded, sealing property is better, and explosion-proof performance is more stable, has also increased the intensity of anti-blast light switch to a certain extent.While is the sealing function of combination seal circle also, plays the function of double shielding.
Every technical staff's notice: though the utility model is described according to above-mentioned embodiment; But the invention thought of the utility model is not limited in this utility model; The repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (3)
1. an anti-blast light switch comprises loam cake (1), chamber lid (2) and lower cover (3), it is characterized in that: adopt between said chamber lid (2) and the lower cover (3) to be threaded.
2. anti-blast light switch according to claim 1 is characterized in that described chamber lid (2) is provided with external screw thread, and described lower cover (3) is provided with chamber lid (2) and goes up the internal thread that external screw thread matches.
3. anti-blast light switch according to claim 1 and 2 is characterized in that also being provided with sealing ring (4) between described chamber lid (2) and the lower cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205488174U CN202405143U (en) | 2011-12-24 | 2011-12-24 | Explosion-proof lighting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205488174U CN202405143U (en) | 2011-12-24 | 2011-12-24 | Explosion-proof lighting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405143U true CN202405143U (en) | 2012-08-29 |
Family
ID=46702775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205488174U Expired - Lifetime CN202405143U (en) | 2011-12-24 | 2011-12-24 | Explosion-proof lighting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405143U (en) |
-
2011
- 2011-12-24 CN CN2011205488174U patent/CN202405143U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |