CN203026400U - Mining explosive-proof type comprehensive protection device for electric coal drill - Google Patents
Mining explosive-proof type comprehensive protection device for electric coal drill Download PDFInfo
- Publication number
- CN203026400U CN203026400U CN 201220721963 CN201220721963U CN203026400U CN 203026400 U CN203026400 U CN 203026400U CN 201220721963 CN201220721963 CN 201220721963 CN 201220721963 U CN201220721963 U CN 201220721963U CN 203026400 U CN203026400 U CN 203026400U
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- Prior art keywords
- connecting rod
- explosion
- cam
- proof
- proof housing
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- Expired - Fee Related
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Abstract
The utility model relates to a mining explosive-proof type comprehensive protection device for an electric coal drill. The mining explosive-proof type comprehensive protection device for the electric coal drill comprises an electric device element, an explosive-proof shell, an interlocking device and a base, wherein a round shell cover is arranged at the front end of the explosive-proof shell; a limiting opening is arranged at the edge of the round shell cover; the interlocking device is mounted on the explosive-proof shell, and comprises a connecting rod for controlling the explosive-proof shell to open and close, a spring, a U-shaped fixing base, a rotary handle, a cam for controlling the connecting rod to stretch and a knob switch; the cam is connected with the outer side of the knob switch; the root of the rotary handle is fixed on the cam; the fixing base is fixed on the lateral wall of the explosive-proof shell between the round shell cover and the cam; the connecting rod is mounted on the U-shaped fixing base; the spring is located inside the U-shaped fixing base and is sleeved on the connecting rod; and the outer end of the connecting rod corresponds to the limiting opening in the round shell cover, and the inner end of the connecting rod is elastically abutted against the lateral wall face of the cam through the spring. The mining explosive-proof type comprehensive protection device for the electric coal drill has the advantages of novel structure, good using effect and high security.
Description
Technical field
The utility model relates to a kind of electric coal drill comprehensive protector that is used under coal mine.
Background technology
The switch of the driving electric elements on present flame-proof mine electric coal drill comprehensive protector and the cap opening and closing device on explosion-proof housing are separate; structure is single; operation is not interlocked and is pind down independent of one another, if the human operational error just easily brings huge potential safety hazard.When switch was closed, cap was opened, and so easily damaged the electric elements in comprehensive protector, and explosion-proof housing does not have explosion-proof; And when the cap open mode, if the electric elements in comprehensive protector are not closed, still in operation, even blast of electric leakage occurs easily in underground colliery, abnormally dangerous.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of novel structure, guarantees that cap is not opened when switch is closed, and when cap was opened, switch can not closedly start electric elements, the flame-proof mine electric coal drill comprehensive protector that fail safe is good.
In order to realize the foregoing invention purpose, the utility model by the following technical solutions:
A kind of flame-proof mine electric coal drill comprehensive protector, comprise electric elements, explosion-proof housing, interlock and base, explosion-proof housing is fixed on base, and electric elements are arranged in explosion-proof housing, the explosion-proof housing front end is provided with circular cap, and circular cap edge is provided with spacing breach; Interlock is arranged on explosion-proof housing; Interlock comprises connecting rod, spring, U-shaped holder, rotary handle, flexible cam and the rotary switch of control link of controlling the explosion-proof housing folding, the rotary switch inboard connects electric elements in explosion-proof housing by rotating shaft, the rotary switch outside connects cam, the rotary handle root is fixed on cam, the U-shaped holder is fixed on explosion-proof housing sidewall between circular cap and cam, connecting rod is arranged on the U-shaped holder, and spring is in the U-shaped holder and is sleeved on connecting rod; Spacing breach on the corresponding circular cap in connecting rod outer end, the inner is against on the cam side wall surface by spring.
As preferably, the U-shaped openend of described U-shaped holder is fixed on the explosion-proof housing sidewall; Be provided with annular boss on connecting rod movable between the biside plate of the front and back of U-shaped holder, spring is between the front side board and annular boss of U-shaped holder.
Adopt the designed flame-proof mine electric coal drill comprehensive protector of such scheme; this electric coal drill comprehensive protector is provided with interlock; this interlock operates by rotary handle; rotate the rotation of the flexible and rotary switch of Synchronization Control connecting rod with moving cam; can guarantee when switch is closed; cap is not opened, and when cap was opened, switch can not be closed and electric elements are started.So this flame-proof mine electric coal drill comprehensive protector, novel structure, easy and simple to handle, to stop the human operational error and bring potential safety hazard, result of use is good, and is safe.
Description of drawings
Fig. 1: the structural representation of the utility model embodiment.
Fig. 2: the partial structurtes cutaway view of interlock opening in the present embodiment.
Fig. 3: the partial structurtes cutaway view of interlock locking-in state in the present embodiment.
Embodiment
The below is described in further detail the technical solution of the utility model by reference to the accompanying drawings.
As Fig. 1, Fig. 2 and a kind of flame-proof mine electric coal drill comprehensive protector shown in Figure 3, comprise electric elements, explosion-proof housing 2, interlock and base 1, explosion-proof housing 2 is fixed on base 1, and electric elements are arranged in explosion-proof housing 2.
Explosion-proof housing 2 front ends are provided with circular cap 4, and circular cap 4 edges are provided with spacing breach 41.Interlock is arranged on explosion-proof housing 2.Interlock comprises connecting rod 31, spring 33, U-shaped holder 32, rotary handle 35, flexible cam 34 and the rotary switch 36 of control link of controlling explosion-proof housing 2 foldings.Rotary switch 36 inboards connect the interior electric elements of explosion-proof housing 2 by rotating shaft, rotary switch 36 rotation control apparatus element opening and closing, and rotary switch 36 outsides connection cams 34, cam 34 and rotary switch 36 synchronously rotate.Rotary handle 35 roots are fixed on cam 34, and the madial wall of rotary handle 35 roots can be welded and fixed or be connected as a single entity with cam 34, rotate rotary handle 35 and can be with moving cam 34.U-shaped holder 32 is fixed on explosion-proof housing 2 sidewalls between circular cap 4 and cam 34, and specifically the U-shaped openend of U-shaped holder 32 is fixed on explosion-proof housing 2 sidewalls.U-shaped holder 32 is actually and is bent into U-shaped by one section metallic plate and consists of, then the metallic plate two ends of bending are welded on explosion-proof housing 2 sidewalls, realizes fixing.The front and back side of U-shaped holder 32 is respectively the back side panel 322 near the front side board 321 of circular cap 4 and close cam 34, front side board 321 and back side panel 322 are provided with a pair of through hole that passes for connecting rod 31, connecting rod 31 is arranged on U-shaped holder 32 through hole by this, and runs through front side board 321 and back side panel 322.Be provided with annular boss 311 on connecting rod 31 movable between the biside plate of the front and back of U-shaped holder 32, spring 33 is in U-shaped holder 32 and is sleeved on connecting rod 31, specifically be between the front side board 321 and annular boss 311 of U-shaped holder, be that spring 33 left ends are against front side board 321 inboards, right-hand member is against on annular boss 311.Spacing breach 41 on the corresponding circular cap in connecting rod 31 outer ends, the inner is elastically against on cam 34 sidewalls by spring 33.The center of cam 3 is consistent with the center of rotary switch 36, and namely cam 3 is take the rotating shaft of rotary switch 36 as pivot.
During use, screw on circular cap 4, rotate rotary handle 35 and be with moving cam 34 and rotary switch 36 synchronous rotaries, when cam 34 side wall surface larger apart from its pivot forwards position with connecting rod 31 interior end in contact to, connecting rod 31 Compress Springs 33 are also outwards movable, and connecting rod 31 outer ends snap in spacing breach 41, circular cap 4 is lockable can not passes through rotating opening, this moment, rotary switch 36 was also opened, i.e. state as shown in Figure 3.Otherwise, only have and rotate rotary handle 35 when making cam 34 side wall surface less apart from its pivot forward position with connecting rod 31 interior end in contact to, connecting rod 31 is got back to as shown in Figure 2 state in the effect of spring 33 thereupon, connecting rod 31 outer ends do not snap in spacing breach 41, just can open circular cap 4, that realizes the switch of electric elements and the cap folding on explosion-proof housing pins down interlocking mutually.
Claims (2)
1. flame-proof mine electric coal drill comprehensive protector, it is characterized in that comprising electric elements, explosion-proof housing, interlock and base, explosion-proof housing is fixed on base, electric elements are arranged in explosion-proof housing, the explosion-proof housing front end is provided with circular cap, and circular cap edge is provided with spacing breach; Interlock is arranged on explosion-proof housing; Interlock comprises connecting rod, spring, U-shaped holder, rotary handle, flexible cam and the rotary switch of control link of controlling the explosion-proof housing folding, the rotary switch inboard connects electric elements in explosion-proof housing by rotating shaft, the rotary switch outside connects cam, the rotary handle root is fixed on cam, the U-shaped holder is fixed on explosion-proof housing sidewall between circular cap and cam, connecting rod is arranged on the U-shaped holder, and spring is in the U-shaped holder and is sleeved on connecting rod; Spacing breach on the corresponding circular cap in connecting rod outer end, the inner is against on the cam side wall surface by spring.
2. a kind of flame-proof mine electric coal drill comprehensive protector according to claim 1, is characterized in that the U-shaped openend of described U-shaped holder is fixed on the explosion-proof housing sidewall; Be provided with annular boss on connecting rod movable between the biside plate of the front and back of U-shaped holder, spring is between the front side board and annular boss of U-shaped holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721963 CN203026400U (en) | 2012-12-24 | 2012-12-24 | Mining explosive-proof type comprehensive protection device for electric coal drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721963 CN203026400U (en) | 2012-12-24 | 2012-12-24 | Mining explosive-proof type comprehensive protection device for electric coal drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026400U true CN203026400U (en) | 2013-06-26 |
Family
ID=48650363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220721963 Expired - Fee Related CN203026400U (en) | 2012-12-24 | 2012-12-24 | Mining explosive-proof type comprehensive protection device for electric coal drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026400U (en) |
-
2012
- 2012-12-24 CN CN 201220721963 patent/CN203026400U/en not_active Expired - Fee Related
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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: 20130626 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |