CN202564093U - Mining electrical equipment switch protection device - Google Patents
Mining electrical equipment switch protection device Download PDFInfo
- Publication number
- CN202564093U CN202564093U CN2012201973758U CN201220197375U CN202564093U CN 202564093 U CN202564093 U CN 202564093U CN 2012201973758 U CN2012201973758 U CN 2012201973758U CN 201220197375 U CN201220197375 U CN 201220197375U CN 202564093 U CN202564093 U CN 202564093U
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- CN
- China
- Prior art keywords
- switch
- travel switch
- output signal
- protection device
- cover plate
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a mining electrical equipment switch protection device. The mining electrical equipment switch protection device is composed of a higher-level flameproof electrical switch, a lower-level flameproof electrical switch, a travel switch, and output signal lines. The travel switch is fixed at the joint position of an upper cover plate and a flameproof surface in the wiring cavity of the lower-level flameproof electrical switch, the height of the travel switch is flush with the flameproof surface, and an elastic return make contact on the travel switch is in contact with the upper cover plate. One end of each output signal line is connected with the normally open and normally closed contacts of the travel switch, and the other end of each output signal line is connected with the blocking contacts of gas, electricity or wind electricity in the higher-level flameproof electrical switch. The mining electrical equipment switch protection device of the utility model is suitable for underground coal mines, had advantages of simple structure and easy utilization, and can be used to ensure the personal safety of workers and improve the reliability and security of underground power supply systems.
Description
Technical field
The utility model relates to a kind of protective device of mining electric equipment switch.
Background technology
Because colliery electric power system complex structure, supply load is of a great variety, area distribution is wide, load operation place complicated geological condition, and exists hazardous mediums such as gas, coal dust, water, and electric equipment is a most important ring in the electric power system.
" three open one anti-" be meant to uncap and report to the police or uncovering power-off or the locking and prevent the non-full-time personnel operation of uncapping without authorization of uncapping, and the electric equipment switch that uses of mine does not have " three open one prevents " function at present." three open one prevents " is the basis with protection personal safety and assurance electric power system reliability; Report to the police or the uncovering power-off or the locking of uncapping through uncapping; Can make operating personnel when hotline maintenance switch wire connection cavity (box) cover plate; Power supply in wire connection cavity (box) cover plate is cut off, guarantee that personnel overhaul under the situation of safety.If there are not " three open one anti-", and during misoperation, just possibly cause personal injury or enormous economic loss, even the consequence of bringing on a disaster property.
Summary of the invention
The purpose of the utility model provides a kind of uncapping and reports to the police or uncovering power-off or the locking and prevent uncap the without authorization mining electric equipment switching protective device of operation of non-full-time personnel of uncapping.
The mining electric equipment switching protective device of the utility model is made up of higher level's flame proof electric switch, subordinate's flame proof electric switch, travel switch and output signal line; Travel switch is fixed in the joint of interior upper cover plate of subordinate's flame proof electric switch wire connection cavity and explosion suppresion surface; Height flushes with explosion suppresion surface; The make contact that returns elastically on the travel switch contacts with upper cover plate; One end of output signal line is connected with the normally-open normally-close point of travel switch, and the locking contact of gas, electricity or wind-powered electricity generation in the other end and the higher level's flame proof electric switch is connected.
The mine electric power supply system has the branch of the superior and the subordinate usually, and the upper cover plate of switch wire connection cavity (box) is closely linked through bolt and explosion suppresion surface.The utility model utilizes this characteristic; In the wire connection cavity (box) of subordinate's switch, fix a travel switch near the upper cover plate junction; Height maintains an equal level with explosion suppresion surface, is connected with the interior gas of (or normally closed) point and higher level's switch, electricity (or wind) the locking contact of often opening of dedicated signal lines with travel switch.Like this, when the upper cover plate of wire connection cavity (box) was raised, travel switch triggered, and higher level's switch just can have a power failure and locking immediately, and subordinate's switch integral body is not charged, thereby realized the function of " three open prevents ".
The mining electric equipment switching protective device of the utility model is applicable under the coal mine, and is simple in structure, easy to use, can guarantee staff's personal safety, improves underground power supply system reliability, fail safe.
Description of drawings
Below in conjunction with accompanying drawing the mining electric equipment switching protective device of utility model is further described.
Fig. 1 is the structural representation of the mining electric equipment switching protective device of the utility model.
Embodiment
A kind of mining electric equipment switching protective device; Comprise higher level's flame proof electric switch 1, subordinate's flame proof electric switch 2, travel switch 3 and output signal line 4; Travel switch 3 is fixed in the joint of interior upper cover plate 5 of subordinate's flame proof electric switch 2 wire connection cavities and explosion suppresion surface 6; Height flushes with explosion suppresion surface 6; The make contact 7 that returns elastically on the travel switch 3 contacts with upper cover plate 5, and an end of output signal line 4 is connected with the normally-open normally-close point 8 of travel switch 3, and the locking contact 9 of gas, electricity or wind-powered electricity generation in the other end and the higher level's flame proof electric switch 1 is connected.
Like this, when the upper cover plate 5 of subordinate's flame proof electric switch 2 was raised, travel switch 3 triggered, and higher level's flame proof electric switch 1 just can have a power failure and locking immediately, and subordinate's flame proof electric switch 2 integral body are not charged, thereby realized the function of " three open prevents ".
Claims (1)
1. mining electric equipment switching protective device; Comprise higher level's flame proof electric switch (1), subordinate's flame proof electric switch (2), travel switch (3) and output signal line (4); It is characterized in that: travel switch (3) is fixed in the joint of interior upper cover plate (5) of subordinate's flame proof electric switch (2) wire connection cavity and explosion suppresion surface (6); Height flushes with explosion suppresion surface (6); The make contact (7) that returns elastically on the travel switch (3) contacts with upper cover plate (5); One end of output signal line (4) is connected with the normally-open normally-close point (8) of travel switch (3), and the locking contact (9) of gas, electricity or wind-powered electricity generation in the other end and the higher level's flame proof electric switch (1) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201973758U CN202564093U (en) | 2012-05-04 | 2012-05-04 | Mining electrical equipment switch protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201973758U CN202564093U (en) | 2012-05-04 | 2012-05-04 | Mining electrical equipment switch protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564093U true CN202564093U (en) | 2012-11-28 |
Family
ID=47213721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201973758U Expired - Fee Related CN202564093U (en) | 2012-05-04 | 2012-05-04 | Mining electrical equipment switch protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467249A (en) * | 2014-12-26 | 2015-03-25 | 常州市盛和电子有限公司 | Anti-explosion housing power-off protection device |
-
2012
- 2012-05-04 CN CN2012201973758U patent/CN202564093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467249A (en) * | 2014-12-26 | 2015-03-25 | 常州市盛和电子有限公司 | Anti-explosion housing power-off protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130504 |