CN103423720A - Explosion-proof lamp and pressure regulating device thereof - Google Patents
Explosion-proof lamp and pressure regulating device thereof Download PDFInfo
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- CN103423720A CN103423720A CN201210161588XA CN201210161588A CN103423720A CN 103423720 A CN103423720 A CN 103423720A CN 201210161588X A CN201210161588X A CN 201210161588XA CN 201210161588 A CN201210161588 A CN 201210161588A CN 103423720 A CN103423720 A CN 103423720A
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Abstract
The invention discloses a pressure regulating device of an explosion-proof lamp. The pressure regulating device is arranged on a shell of the explosion-proof lamp, and comprises a protective cap, a moving valve and an elastic part. The protective cap is barrel-shaped, and pressure-releasing through holes are formed in the barrel wall. The moving valve is tubular, valve through holes are formed in the tubular wall, and one end of the moving valve is open while the other end of the same is sealed. A communicating hole is formed in the shell, and the moving shell is slidingly connected to the communicating hole along an axis thereof. The sealed end of the moving valve is positioned in the protective cap, the open end thereof is positioned in the shell, and an inner cavity of the moving valve is communicated with an inner cavity of the shell. The elastic part is used for limiting movement of the moving valve in the communicating hole. When the pressure in the shell is high, the moving valve slides towards the outer side of the shell, and the pressure-releasing through holes are communicated with the valve through holes, so that pressure is released; after pressure releasing, air pressure in the shell is lowered, the moving valve moves towards the inner side of the shell under the elastic action of the elastic part, the pressure-releasing through hole and the valve through hole are staggered, and accordingly, pressure releasing stops. Meanwhile, the invention discloses the explosion-proof lamp.
Description
Technical field
The present invention relates to lighting device, relate in particular to a kind of explosion-proof lamp pressure-regulating device and explosion-proof lamp.
Background technology
The pressure regulating mechanism of explosion-proof lamp commonly used is all to adopt the breather hole structure be completely fixed on the market at present, and is nearly all to paste ventilated membrane to add support block structure on light fixture air-vent inwall.Ventilated membrane itself has very high requirement to the stability of its quality, if the unreliable meeting of quality causes airing function to lose efficacy on the one hand; If ventilated membrane comes off and also can cause airing function to lose efficacy on the other hand.In addition the backing material of ventilated membrane is a kind of porous vegetables pine material, and this quality of materials stability extremely is difficult to guarantee, once therefore occur off qualityly, will directly cause its disabler, and then cause the airing function of whole breather hole structure to lose efficacy.
Summary of the invention
The object of the present invention is to provide a kind of pressure release, safe and reliable explosion-proof lamp pressure-regulating device and explosion-proof lamp of can effectively carrying out when the explosion-proof lamp air pressure inside is excessive.
In order to solve the problems of the technologies described above, the invention provides a kind of explosion-proof lamp pressure-regulating device, be arranged on the housing of explosion-proof lamp, described explosion-proof lamp pressure-regulating device comprises:
Over cap, be tubular, and barrel is provided with the pressure release through hole, its first end opening and being fixedly connected with the lateral wall of described housing;
Movable valve, in a tubular form, tube wall is provided with the valve through hole with described pressure release through hole corresponding matching, and an end opening, an end sealing;
Described housing is provided with the intercommunicating pore with described movable valve shape corresponding matching, and described movable valve is along self being in axial sliding connection in described intercommunicating pore; One end of described movable valve sealing is positioned at described over cap, and an end of its opening is positioned at described housing, and the inner chamber of described movable valve is communicated with described housing inner chamber; And
Elastic component, limit the movement of described movable valve in described intercommunicating pore;
When the pressure release through hole is communicated with the valve through hole, the housing inner chamber is in communication with the outside; When the pressure release through hole coordinates with the dislocation of valve through hole, the housing inner chamber is hedged off from the outer world.
Wherein, the second end end face of described over cap offers spacing hole; one end of described movable valve sealing is connected with locating part; described locating part comprises that described gag lever post is slidably arranged in described spacing hole for keeping off at the limited cap of described spacing hole outer ledge and the gag lever post be fixedly connected with described limited cap.
Wherein, the lateral surface of described housing is provided with the annular boss arranged along the periphery of described intercommunicating pore, and described over cap is threaded with described annular boss.
Wherein, be provided with sealing ring between described movable valve and described intercommunicating pore.
Wherein, described sealing ring outer ring is provided with along the circumference setting and wraps up the groove at the edge of described intercommunicating pore.
Wherein, an end surrounding of described activity valve openings is provided with annular flange flange, and described elastic component is Compress Spring, is set on described movable valve; The two ends of described spring are resisted against respectively the madial wall of described annular flange flange and described housing.
Wherein, the madial wall of described housing is provided with the positive stop lug boss with the annular of described annular flange flange corresponding matching, between described positive stop lug boss and described annular flange flange, is provided with buffer rubber gasket.
Wherein, the edge of described annular flange flange extends to form rib towards an end of described movable valve sealing, and described elastic component is set between described movable valve and described positive stop lug boss, and described positive stop lug boss is between described elastic component and described rib.
Wherein, described buffer rubber gasket is installed on the end face of described positive stop lug boss; When described pressure release through hole and described valve through hole run through while being communicated with, described annular flange flange is resisted against described buffer rubber gasket.
Correspondingly, the invention provides a kind of explosion-proof lamp, the housing of described explosion-proof lamp is provided with above-mentioned explosion-proof lamp pressure-regulating device.
Explosion-proof lamp pressure-regulating device provided by the invention and explosion-proof lamp, when the housing internal gas pressure is larger, the deformation of elastic component generation under pressure, movable valve slides to hull outside; When the housing internal gas pressure surpasses the safe pressure value, the pressure release through hole is communicated with the valve through hole, thereby makes inside and outside connection of housing carry out pressure release; After pressure release, the housing internal gas pressure reduces, and under the effect of elastic component elastic force, movable valve is to the housing medial movement, and pressure release through hole and valve through hole misplace, thereby stop pressure release; Simple in structure, safe and reliable.
The accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below will the accompanying drawing of required use in embodiment be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the profile of the explosion-proof lamp pressure-regulating device that provides of embodiment of the present invention;
Fig. 2 is the profile of the explosion-proof lamp pressure-regulating device of Fig. 1 while carrying out pressure release.
The specific embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
See also Fig. 1 to Fig. 2, a kind of explosion-proof lamp that embodiment of the present invention provides, be provided with the explosion-proof lamp pressure-regulating device on the housing 1 of explosion-proof lamp.The explosion-proof lamp pressure-regulating device comprises over cap 2, movable valve 3 and elastic component 4.
Over cap 2 is tubular, and barrel 21 is provided with pressure release through hole 20, its first end opening and being fixedly connected with the lateral wall of housing 1.In a tubular form, tube wall is provided with the valve through hole 30 with pressure release through hole 20 corresponding matching to movable valve 3, and an end opening, an end sealing.Housing 1 is provided with the intercommunicating pore with movable valve 3 shape corresponding matching, and movable valve 3 is in axial sliding connection in intercommunicating pore along self.In the present embodiment, intercommunicating pore is circular hole, and movable valve 3 is correspondingly circular tube shaped, as other embodiment, can be also, and intercommunicating pore is square hole, and movable valve 3 is correspondingly square tube type, or intercommunicating pore and coordinating that movable valve 3 is other shapes.
One end of movable valve 3 sealings is positioned at over cap 2, and an end of its opening is positioned at housing 1, and the inner chamber of movable valve 3 is communicated with housing 1 inner chamber; Movable valve 3 can make pressure release through hole 20 be communicated with or misplace with valve through hole 30 along self endwisely slipping.When pressure release through hole 20 is communicated with valve through hole 30, as shown in Figure 2, housing 1 inner chamber is in communication with the outside, and can carry out pressure release; When pressure release through hole 20 misplaces with valve through hole 30, housing 1 inner chamber is hedged off from the outer world, and guarantees the sealing property in housing 1.
Over cap 2 is housed in an end integral body of movable valve 3 sealings in over cap 2, thereby prevents that slip that other objects affect activity valve 3 from affecting the normal operation of pressure-regulating device.The second end end face of over cap 2 offers spacing hole 220; one end of movable valve 3 sealings is connected with locating part 5; locating part 5 comprises that gag lever post 51 is slidably arranged in spacing hole 220 for keeping off at the limited cap 52 of spacing hole 220 outer ledges and the gag lever post 51 be fixedly connected with limited cap 52.After when movable valve 3, to housing 1, interior slip certain distance misplaces pressure release through hole 20 and valve through hole 30, limited cap 52 can keep off in the outside of spacing hole 220, prevents that movable valve 3 from continuing to slide to deviate from intercommunicating pore to the interior continuation of housing 1.Preferably; in the present embodiment; locating part 5 is screw; the nut of screw is limited cap 52, and the double-screw bolt of screw is gag lever post 51, and an end of movable valve 3 sealings is provided with the screw with the screw rod corresponding matching; during assembling; one end of movable valve 3 sealings is entered in over cap 2 through intercommunicating pore, from the outside of over cap 2, screw is connected and gets final product with an end of movable valve 3 sealings, easy to assembly quick.
The lateral surface of housing 1 is provided with the annular boss 11 arranged along the periphery of intercommunicating pore, and over cap 2 is threaded with annular boss 11, so that being linked and packed of housing 1 and over cap 2.Certainly also can adopt the mode such as screw that housing 1 is fixedly connected with over cap 2 herein, or housing 1 is integrally formed with over cap 2.
Herein, as other embodiment, can be also, elastic component 4 be Compress Spring, is arranged between an end of the second end inwall of over cap 2 and 3 sealings of movable valve; Perhaps elastic component 4 is extension spring, is arranged between an end and housing 1 outer wall of movable valve 3 sealings; Perhaps elastic component 4 is other forms or structure, and the slip of restraint valve 3 in intercommunicating pore makes movable valve 3 be issued to an equilbrium position in the effect of housing 1 internal gas pressure and ambient pressure.
Further, between movable valve 3 and intercommunicating pore, be provided with sealing ring 6, when guaranteeing that air pressure in housing 1 is in normal range (NR), housing 1 inner chamber isolation.Preferably, sealing ring 6 outer rings are provided with along the groove at edge of circumference setting and parcel intercommunicating pore, and the edge of intercommunicating pore is arranged in groove, so that being connected of sealing ring 6 and intercommunicating pore, when movable valve 3 moves simultaneously, sealing ring 6 can not move.Herein, as other embodiment, can be also that sealing ring 6 is installed in the lateral wall of movable valve 3, sealing ring 6 is greater than the sliding distance of movable valve 3 along the length of axis, the sealing that sealing ring 6 moves between the valve 3 of assurance activity simultaneously and intercommunicating pore with movable valve 3.
The madial wall of housing 1 is provided with the positive stop lug boss 12 with the annular of annular flange flange 31 corresponding matching, between positive stop lug boss 12 and annular flange flange 31, is provided with buffer rubber gasket 7.Positive stop lug boss 12 is annular, can with annular flange flange 31 corresponding matching, make annular flange flange 31 stressed evenly.Further, buffer rubber gasket 7 is installed on the end face of positive stop lug boss 12; When pressure release through hole 20 and valve through hole 30 run through while being communicated with, annular flange flange 31 is resisted against buffer rubber gasket 7, can prevent from that the outside sliding distance of movable valve 3 is excessive to cause pressure release through hole 20 and 30 dislocation of valve through hole, pressure release smoothly; Utilize buffer rubber gasket 7 to avoid positive stop lug boss 12 directly to contact the two is caused to damage with annular flange flange 31.Herein, as other embodiment, buffer rubber gasket 7 also can be installed on annular flange flange 31, and when pressure release through hole 20 and valve through hole 30 run through while being communicated with, positive stop lug boss 12 is resisted against buffer rubber gasket 7.
The edge of annular flange flange 31 extends to form the rib 32 of tubulose towards an end of movable valve 3 sealings, to strengthen the structural strength of annular flange flange 31.Further particularly, elastic component 4 is set between movable valve 3 and positive stop lug boss 12, and positive stop lug boss 12 is between elastic component 4 and rib 32, so that the location and installation of movable valve 3.
In the present embodiment, housing 1 internal gas pressure is when larger, and deformation occur elastic component 4 under pressure, and movable valve 3 slides to housing 1 outside; When housing 1 internal gas pressure surpasses the safe pressure value, pressure release through hole 20 is communicated with valve through hole 30, thereby makes inside and outside connection of housing 1 carry out pressure release; After pressure release, housing 1 internal gas pressure reduces, and elastic component 4 restores to the elastic force of movable valve 3 to move inward, and makes movable valve 3 to housing 1 medial movement, pressure release through hole 20 and 30 dislocation of valve through hole, thus stop pressure release.
In the present embodiment, utilize screw to prevent from when movable valve 3 from sliding deviating from intercommunicating pore, as other embodiment, also can adopt other position limiting structure to prevent the distance of restraint valve 3 to housing 1 interior slip, perhaps make the two ends of Compress Spring be fixedly connected with housing 1 with movable valve 3 respectively, make movable valve 3 keep being connected with housing 1 all the time, thereby prevent that movable valve 3 from deviating from.
In the present embodiment, utilize and prevent positive stop lug boss 12 and coordinating of annular flange flange 31 that excessive pressure release through hole 20 and the valve through hole 30 of causing of the outside sliding distance of movable valve 3 from misplacing, as other embodiment, can be also, when pressure release through hole 20 and valve through hole 30 run through while being communicated with, one end of movable valve 3 sealings is resisted against the second end inwall of over cap 2, thereby prevent that movable valve 3 from running through and being communicated with the rear outwards slip that continues at pressure release through hole 20 and valve through hole 30, rubber blanket also can be set for buffering between one end of certain movable valve 3 sealings and over cap 2 second end inwalls.Perhaps, when elastic component 4 is compressed to minimum length, movable valve 3 just can not continue to housing 1 outside, to slide again.
Be more than the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (10)
1. an explosion-proof lamp pressure-regulating device, be arranged on the housing of explosion-proof lamp, it is characterized in that, described explosion-proof lamp pressure-regulating device comprises:
Over cap, be tubular, and barrel is provided with the pressure release through hole, its first end opening and being fixedly connected with the lateral wall of described housing;
Movable valve, in a tubular form, tube wall is provided with the valve through hole with described pressure release through hole corresponding matching, and an end opening, an end sealing;
Described housing is provided with the intercommunicating pore with described movable valve shape corresponding matching, and described movable valve is along self being in axial sliding connection in described intercommunicating pore; One end of described movable valve sealing is positioned at described over cap, and an end of its opening is positioned at described housing, and the inner chamber of described movable valve is communicated with described housing inner chamber; And
Elastic component, limit the movement of described movable valve in described intercommunicating pore;
When the pressure release through hole is communicated with the valve through hole, the housing inner chamber is in communication with the outside; When the pressure release through hole coordinates with the dislocation of valve through hole, the housing inner chamber is hedged off from the outer world.
2. explosion-proof lamp pressure-regulating device according to claim 1; it is characterized in that; the second end end face of described over cap offers spacing hole; one end of described movable valve sealing is connected with locating part; described locating part comprises that described gag lever post is slidably arranged in described spacing hole for keeping off at the limited cap of described spacing hole outer ledge and the gag lever post be fixedly connected with described limited cap.
3. explosion-proof lamp pressure-regulating device according to claim 1, is characterized in that, the lateral surface of described housing is provided with the annular boss arranged along the periphery of described intercommunicating pore, and described over cap is threaded with described annular boss.
4. explosion-proof lamp pressure-regulating device according to claim 1, is characterized in that, between described movable valve and described intercommunicating pore, is provided with sealing ring.
5. explosion-proof lamp pressure-regulating device according to claim 4, is characterized in that, described sealing ring outer ring is provided with along the circumference setting and wraps up the groove at the edge of described intercommunicating pore.
6. explosion-proof lamp pressure-regulating device according to claim 1, is characterized in that, an end surrounding of described activity valve openings is provided with annular flange flange, and described elastic component is Compress Spring, is set on described movable valve; The two ends of described spring are resisted against respectively the madial wall of described annular flange flange and described housing.
7. explosion-proof lamp pressure-regulating device according to claim 6, is characterized in that, the madial wall of described housing is provided with the positive stop lug boss with the annular of described annular flange flange corresponding matching, between described positive stop lug boss and described annular flange flange, is provided with buffer rubber gasket.
8. explosion-proof lamp pressure-regulating device according to claim 7, it is characterized in that, the edge of described annular flange flange extends to form rib towards an end of described movable valve sealing, described elastic component is set between described movable valve and described positive stop lug boss, and described positive stop lug boss is between described elastic component and described rib.
9. explosion-proof lamp pressure-regulating device according to claim 7, is characterized in that, described buffer rubber gasket is installed on the end face of described positive stop lug boss; When described pressure release through hole and described valve through hole run through while being communicated with, described annular flange flange is resisted against described buffer rubber gasket.
10. an explosion-proof lamp, is characterized in that, is provided with the described explosion-proof lamp pressure-regulating device of claim 1 to 9 any one on the housing of described explosion-proof lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161588.XA CN103423720B (en) | 2012-05-23 | 2012-05-23 | Explosion-proof lamp pressure-regulating device and explosion-proof lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161588.XA CN103423720B (en) | 2012-05-23 | 2012-05-23 | Explosion-proof lamp pressure-regulating device and explosion-proof lamp |
Publications (2)
| Publication Number | Publication Date |
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| CN103423720A true CN103423720A (en) | 2013-12-04 |
| CN103423720B CN103423720B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210161588.XA Active CN103423720B (en) | 2012-05-23 | 2012-05-23 | Explosion-proof lamp pressure-regulating device and explosion-proof lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893941A (en) * | 2017-12-19 | 2018-04-10 | 温州市荣的照明电器有限公司 | A kind of explosion-proof Mobile working lamp |
| CN111810033A (en) * | 2020-08-06 | 2020-10-23 | 李忠 | Concatenation formula explosion door subassembly |
| CN114941813A (en) * | 2022-05-13 | 2022-08-26 | 亦默智能(深圳)有限公司 | Portable high-power explosion-proof emergency lamp with video remote monitoring function |
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| CN201110410Y (en) * | 2007-10-25 | 2008-09-03 | 高喆林 | Overpressurization automatic explosion-proof pressure reducing device for automobile tyre |
| CN201330613Y (en) * | 2008-12-18 | 2009-10-21 | 四川神坤装备股份有限公司 | High-pressure large-flow-rate safety valve |
| CN101825267A (en) * | 2009-03-05 | 2010-09-08 | 海洋王照明科技股份有限公司 | Lamp respirator and lamp with same |
| CN101852418A (en) * | 2010-04-02 | 2010-10-06 | 海洋王照明科技股份有限公司 | Pressure balancing device and lamp using same |
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2012
- 2012-05-23 CN CN201210161588.XA patent/CN103423720B/en active Active
Patent Citations (5)
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| JPH10213245A (en) * | 1997-01-28 | 1998-08-11 | Fuji Oozx Inc | Relief valve device |
| CN201110410Y (en) * | 2007-10-25 | 2008-09-03 | 高喆林 | Overpressurization automatic explosion-proof pressure reducing device for automobile tyre |
| CN201330613Y (en) * | 2008-12-18 | 2009-10-21 | 四川神坤装备股份有限公司 | High-pressure large-flow-rate safety valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893941A (en) * | 2017-12-19 | 2018-04-10 | 温州市荣的照明电器有限公司 | A kind of explosion-proof Mobile working lamp |
| CN107893941B (en) * | 2017-12-19 | 2023-10-24 | 温州市荣的照明电器有限公司 | Explosion-proof movable working lamp |
| CN111810033A (en) * | 2020-08-06 | 2020-10-23 | 李忠 | Concatenation formula explosion door subassembly |
| CN114941813A (en) * | 2022-05-13 | 2022-08-26 | 亦默智能(深圳)有限公司 | Portable high-power explosion-proof emergency lamp with video remote monitoring function |
| CN114941813B (en) * | 2022-05-13 | 2024-05-03 | 亦默智能(深圳)有限公司 | Portable high-power explosion-proof emergency lamp with video remote monitoring function |
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| CN103423720B (en) | 2017-10-13 |
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