CN103423720B - Explosion-proof lamp pressure-regulating device and explosion-proof lamp - Google Patents
Explosion-proof lamp pressure-regulating device and explosion-proof lamp Download PDFInfo
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- CN103423720B CN103423720B CN201210161588.XA CN201210161588A CN103423720B CN 103423720 B CN103423720 B CN 103423720B CN 201210161588 A CN201210161588 A CN 201210161588A CN 103423720 B CN103423720 B CN 103423720B
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Abstract
The invention discloses a kind of explosion-proof lamp pressure-regulating device, it is arranged on the housing of explosion-proof lamp, including protection cap, movable valve and elastic component.Protection cap is cylindrical in shape, and barrel is provided with pressure release through hole；In a tubular form, tube wall is provided with valve through hole, and one end open, one end sealing to movable valve；Hole is communicated with housing, movable valve is in axial sliding connection in intercommunicating pore along itself；One end of movable valve sealing is located in protection cap, and its one end being open is located in housing, and the inner chamber of movable valve is connected with housing cavity；Elastic component is used to limit movement of the movable valve in intercommunicating pore.When pressure is larger in housing, movable valve is slided to hull outside, and pressure release through hole is connected with valve through hole, carries out pressure release；After pressure release, air pressure reduces in housing, and under the effect of elastic component elastic force, movable valve is moved to case inside, and pressure release through hole misplaces with valve through hole, so as to stop pressure release.Meanwhile, the invention discloses a kind of explosion-proof lamp.
Description
Technical field
The present invention relates to lighting device, more particularly to a kind of explosion-proof lamp pressure-regulating device and explosion-proof lamp.
Background technology
The pressure regulating mechanism for the explosion-proof lamp commonly used on the market at present is all to use the breather hole structure being completely fixed, and
Nearly all it is that ventilated membrane plus support block structure are pasted on light fixture air-vent inwall.Ventilated membrane has very to the stability of its quality in itself
High requirement, can cause airing function to fail if on the one hand quality is unreliable；If on the other hand ventilated membrane comes off and can also led
Cause airing function failure.In addition the backing material of ventilated membrane is a kind of porosity and looseness material, this quality of materials stability
It is extremely hard to ensure, therefore once occurs off quality, its disabler will be directly resulted in, and then cause whole air-vent
The airing function failure of structure.
The content of the invention
Pressure release, safety can be effectively carried out when explosion-proof lamp air pressure inside is excessive it is an object of the invention to provide one kind
Reliable explosion-proof lamp pressure-regulating device and explosion-proof lamp.
In order to solve the above-mentioned technical problem, the invention provides a kind of explosion-proof lamp pressure-regulating device, it is arranged on explosion-proof
On the housing of light fixture, the explosion-proof lamp pressure-regulating device includes：
Protection cap, cylindrical in shape, barrel is provided with pressure release through hole, its first end opening and is fixed with the lateral wall of the housing
Connection；
Movable valve, in a tubular form, tube wall are opened provided with the valve through hole with the pressure release through hole corresponding matching, and one end
Mouthful, one end sealing；
The housing is provided with intercommunicating pore with the movable valve shape corresponding matching, and the movable valve is along itself axle
To being slidably connected to the intercommunicating pore；One end of the movable valve sealing is located in the protection cap, its one end being open position
In in the housing, the inner chamber of the movable valve is connected with the housing cavity；And
Elastic component, limits movement of the movable valve in the intercommunicating pore；
When pressure release through hole is connected with valve through hole, housing cavity is in communication with the outside；When pressure release through hole and valve through hole are wrong
When position coordinates, housing cavity is hedged off from the outer world.
Wherein, the second end end face of the protection cap offers spacing hole, and one end of the movable valve sealing is connected with
Locating part, the locating part includes being used to keep off in the limited cap of the spacing hole outer ledge and fixes company with the limited cap
The gag lever post connect, the gag lever post is slidably arranged in the spacing hole.
Wherein, the lateral surface of the housing is provided with the annular boss set along the periphery of the intercommunicating pore, the protection cap
It is threadedly coupled with the annular boss.
Wherein, sealing ring is provided between the movable valve and the intercommunicating pore.
Wherein, the sealing ring outer ring is provided with the groove at the edge for circumferentially setting and wrapping up the intercommunicating pore.
Wherein, one end of the activity valve openings is surrounded by annular flange, and the elastic component is compression spring, is arranged
On the movable valve；The two ends of the spring bear against the madial wall in the annular flange and the housing.
Wherein, the madial wall of the housing is described provided with the annular positive stop lug boss with the annular flange corresponding matching
Buffer rubber gasket is provided between positive stop lug boss and the annular flange.
Wherein, the edge of the annular flange extends to form rib towards one end of the movable valve sealing, institute
Elastic component is stated to be set between the movable valve and the positive stop lug boss, the positive stop lug boss be located at the elastic component with it is described
Between rib.
Wherein, the buffer rubber gasket is installed on the end face of the positive stop lug boss；When the pressure release through hole and the gas
When door through hole is through connection, the annular flange is resisted against the buffer rubber gasket.
Correspondingly, the invention provides a kind of explosion-proof lamp, the housing of the explosion-proof lamp is provided with above-mentioned explosion-proof lamp
Has pressure-regulating device.
When air pressure is larger in explosion-proof lamp pressure-regulating device and explosion-proof lamp that the present invention is provided, housing, make in pressure
Deformed upon with lower elastic component, movable valve is slided to hull outside；When air pressure exceedes safe pressure value in housing, pressure release is led to
Hole is connected with valve through hole, so that the inside and outside connection of housing carries out pressure release；After pressure release, air pressure reduces in housing, in elastic component bullet
Under power effect, movable valve is moved to case inside, and pressure release through hole misplaces with valve through hole, so as to stop pressure release；It is simple in construction,
It is safe and reliable.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in embodiment will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the profile for the explosion-proof lamp pressure-regulating device that embodiment of the present invention is provided；
Profile when Fig. 2 is Fig. 1 explosion-proof lamp pressure-regulating device progress pressure release.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear
Chu, it is fully described by.
On a kind of explosion-proof lamp provided also referring to Fig. 1 to Fig. 2, embodiment of the present invention, the housing 1 of explosion-proof lamp
It is provided with explosion-proof lamp pressure-regulating device.Explosion-proof lamp pressure-regulating device includes protection cap 2, movable valve 3 and elastic component
4。
Protection cap 2 is cylindrical in shape, and barrel 21 is consolidated provided with pressure release through hole 20, its first end opening and with the lateral wall of housing 1
Fixed connection.In a tubular form, tube wall is provided with the valve through hole 30 with the corresponding matching of pressure release through hole 20, and one end open to movable valve 3,
One end is sealed.Housing 1 is provided with intercommunicating pore with the movable shape corresponding matching of valve 3, and movable valve 3 is along itself company of sliding axially
It is connected in intercommunicating pore.In the present embodiment, intercommunicating pore is circular hole, and movable valve 3 is correspondingly circular tube shaped, is used as other implementation
Mode or, intercommunicating pore is square hole, and movable valve 3 is correspondingly square tube type, or intercommunicating pore and movable valve 3 are it
The cooperation of his shape.
The sealed one end of movable valve 3 is located in protection cap 2, and its one end being open is located in housing 1, movable valve 3
Inner chamber is connected with the inner chamber of housing 1；Movable valve 3 can make along itself sliding axially pressure release through hole 20 connected with valve through hole 30 or
Dislocation.When pressure release through hole 20 is connected with valve through hole 30, as shown in Fig. 2 the inner chamber of housing 1 is in communication with the outside, pressure release can be carried out；
When pressure release through hole 20 and valve through hole 30 misplace, the inner chamber of housing 1 is hedged off from the outer world, it is ensured that the sealing property in housing 1.
The sealed one end of movable valve 3 is integrally housed in protection cap 2 by protection cap 2, prevents the activity of other object contributions
The slip of valve 3 is so as to influence the normal work of pressure-regulating device.Second end end face of protection cap 2 offers spacing hole 220,
The sealed one end of movable valve 3 connects finite place piece 5, and locating part 5 includes being used to keep off the limited cap in the outer ledge of spacing hole 220
52 and the gag lever post 51 that is fixedly connected with limited cap 52, gag lever post 51 is slidably arranged in spacing hole 220.When movable valve 3
Certain distance is slided into housing 1 to be made after pressure release through hole 20 and the dislocation of valve through hole 30, and limited cap 52 can be kept off in spacing hole 220
Outside, prevents movable valve 3 from continuing to continue to slide into housing 1 to deviate from out of intercommunicating pore.Preferably, in the present embodiment, limit
Position part 5 is screw, and the nut of screw is limited cap 52, and the stud of screw is gag lever post 51, the sealed one end of movable valve 3
Provided with the screw with screw rod corresponding matching, during assembling, the sealed one end of movable valve 3 is entered in protection cap 2 through intercommunicating pore,
Screw is connected with movable sealed one end of valve 3 from the outside of protection cap 2, it is easy to assembly quick.
The lateral surface of housing 1 is provided with the annular boss 11 set along the periphery of intercommunicating pore, protection cap 2 and the spiral shell of annular boss 11
Line is connected, in order to being linked and packed for housing 1 and protection cap 2.Certainly may be otherwise makes housing 1 and guarantor using modes such as screws
Protecting cover 2 is fixedly connected, or housing 1 and protection cap 2 it is integrally formed.
Elastic component 4 is used to limit movement of the movable valve 3 in intercommunicating pore.Preferably, one end four that movable valve 3 is open
It is provided with annular flange 31 week, elastic component 4 is compression spring, is set on movable valve 3；The two ends of elastic component 4 bear against in
Annular flange 31 and the madial wall of housing 1, when movable valve 3 is to 1 outer Slideslip of housing under the effect of the internal pressure power of housing 1, elastic component 4
Compression, to movable valve 3 with the active force into housing 1, obstruction activity valve 3 slides in and out.Movable valve 3 is in housing 1
The interaction of the elastic force of gas pressure and elastic component 4 is issued to an equilbrium position, when the gas pressure in housing 1 reaches necessarily
Degree, during the safe pressure value that can bear more than housing 1, movable valve 3, which slides in and out, makes pressure release through hole 20 and valve through hole
30 connections, and then the inner chamber of housing 1 is in communication with the outside, carry out pressure release.When the air pressure in housing 1 decreases below safe pressure value
When, in the presence of elastic component 4, movable valve 3 is slided into housing 1 makes pressure release through hole 20 be misplaced with valve through hole 30, housing 1
Inner chamber is hedged off from the outer world, so as to stop pressure release.
Here, as other embodiment or, elastic component 4 is compression spring, is arranged on protection cap 2
Between second end inwall and movable sealed one end of valve 3；Or elastic component 4 is extension spring, is arranged on movable valve 3 sealed one
Between end and the outer wall of housing 1；Or elastic component 4 be other forms or structure, slip of the limitation activity valve 3 in intercommunicating pore,
Movable valve 3 is set to reach an equilbrium position in the presence of air pressure and ambient pressure in housing 1.
Further, sealing ring 6 is provided between movable valve 3 and intercommunicating pore, to ensure the air pressure in housing 1 in normal model
When enclosing interior, the isolation of the inner chamber of housing 1.Preferably, the outer ring of sealing ring 6 is provided with the recessed of the edge for circumferentially setting and wrapping up intercommunicating pore
Groove, the edge of intercommunicating pore in the grooves, in order to the mating connection of sealing ring 6 and intercommunicating pore, while when movable valve 3 is moved
Sealing ring 6 will not be moved.Here, as other embodiment or, sealing ring 6 is installed in the outer of movable valve 3
Side wall, length of the sealing ring 6 along axis is more than the sliding distance of movable valve 3, and sealing ring 6 is moved with movable valve 3 and protected simultaneously
Sealing between card activity valve 3 and intercommunicating pore.
The madial wall of housing 1 provided with annular positive stop lug boss 12 with the corresponding matching of annular flange 31, positive stop lug boss 12 with
Buffer rubber gasket 7 is provided between annular flange 31.Positive stop lug boss 12 is annular, can make annular with the corresponding matching of annular flange 31
The uniform force of flange 31.Further, buffer rubber gasket 7 is installed on the end face of positive stop lug boss 12；When pressure release through hole 20 and gas
When door through hole 30 is through connection, annular flange 31 is resisted against buffer rubber gasket 7, can prevent movable valve 3 from sliding in and out apart from mistake
Pressure release through hole 20 is caused to be misplaced with valve through hole 30 greatly, it is impossible to smooth pressure release；Using buffer rubber gasket 7 avoid positive stop lug boss 12 with
The directly contact of annular flange 31 causes to damage to the two.Here, as other embodiment, buffer rubber gasket 7 can also
It is installed in annular flange 31, when pressure release through hole 20 and valve through hole 30, which run through, to be connected, positive stop lug boss 12 is resisted against buffering rubber
Rubber cushion 7.
The edge of annular flange 31 extends the rib 32 to form tubulose towards the sealed one end of movable valve 3, to increase
The structural strength of strong annular flange 31.Further specifically, elastic component 4 is set between movable valve 3 and positive stop lug boss 12, limit
Position boss 12 is located between elastic component 4 and rib 32, in order to the location and installation of movable valve 3.
In the present embodiment, when air pressure is larger in housing 1, elastic component 4 is deformed upon under pressure, movable valve
3 to the outer Slideslip of housing 1；When air pressure exceedes safe pressure value in housing 1, pressure release through hole 20 is connected with valve through hole 30, from
And connection inside and outside housing 1 is carried out pressure release；After pressure release, air pressure reduces in housing 1, and elastic component 4 is restored to movable valve 3 with inside
Mobile elastic force, makes movable valve 3 to the medial movement of housing 1, pressure release through hole 20 misplaces with valve through hole 30, so as to stop letting out
Pressure.
In the present embodiment, prevent movable valve 3 from deviating from when sliding out of intercommunicating pore using screw, be used as other reality
Apply mode, it would however also be possible to employ other position limiting structures prevent the distance that limitation activity valve 3 is slided into housing 1, or make pressure
The two ends of contracting spring are fixedly connected with movable valve 3 and housing 1 respectively, make movable valve 3 keep connecting all the time with housing 1, from
And prevent movable valve 3 from deviating from.
In the present embodiment, using the cooperation of positive stop lug boss 12 and annular flange 31 prevent movable valve 3 slide in and out away from
Cause pressure release through hole 20 to be misplaced with valve through hole 30 from excessive, as other embodiment or, when pressure release through hole 20
With valve through hole 30 through connect when, the sealed one end of movable valve 3 is resisted against the second end inwall of protection cap 2, so as to prevent
Movable valve 3 is continued to slide out in pressure release through hole 20 with valve through hole 30 after connecting, certainly activity valve 3 sealed one
Rubber blanket can also be set to be used to buffer between end and the end inwall of protection cap 2 second.Or, elastic component 4 is compressed to minimum length
When, movable valve 3 just will not continue to again to the outer Slideslip of housing 1.
Above is the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as this hair
Bright protection domain.
Claims (9)
1. a kind of explosion-proof lamp pressure-regulating device, is arranged on the housing of explosion-proof lamp, it is characterised in that the explosion-proof lamp
Pressure-regulating device includes：
Protection cap, cylindrical in shape, barrel provided with pressure release through hole, its first end opening and fixes company with the lateral wall of the housing
Connect；
Movable valve, in a tubular form, tube wall are provided with the valve through hole with the pressure release through hole corresponding matching, and one end open, one
End sealing；
The housing is provided with the intercommunicating pore with the movable valve shape corresponding matching, and the movable valve is axially sliding along itself
It is dynamic to be connected to the intercommunicating pore；One end of the movable valve sealing is located in the protection cap, and its one end being open is located at institute
State in housing, the inner chamber of the movable valve is connected with the housing cavity；And
Elastic component, limits movement of the movable valve in the intercommunicating pore；
When pressure release through hole is connected with valve through hole, housing cavity is in communication with the outside；When pressure release through hole is matched somebody with somebody with the dislocation of valve through hole
During conjunction, housing cavity is hedged off from the outer world；
Second end end face of the protection cap offers spacing hole, one end connection finite place piece of the movable valve sealing, institute
State locating part include being used for keeping off the limited cap of the spacing hole outer ledge and be fixedly connected with the limited cap it is spacing
Bar, the gag lever post is slidably arranged in the spacing hole.
2. explosion-proof lamp pressure-regulating device according to claim 1, it is characterised in that the lateral surface of the housing is provided with
The annular boss set along the periphery of the intercommunicating pore, the protection cap is threadedly coupled with the annular boss.
3. explosion-proof lamp pressure-regulating device according to claim 1, it is characterised in that the movable valve and the company
Sealing ring is provided between through hole.
4. explosion-proof lamp pressure-regulating device according to claim 3, it is characterised in that the sealing ring outer ring is provided with
Circumferentially set and wrap up the groove at the edge of the intercommunicating pore.
5. explosion-proof lamp pressure-regulating device according to claim 1, it is characterised in that the one of the activity valve openings
End is surrounded by annular flange, and the elastic component is compression spring, is set on the movable valve；The two ends of the spring point
The madial wall of the annular flange and the housing is not resisted against.
6. explosion-proof lamp pressure-regulating device according to claim 5, it is characterised in that the madial wall of the housing is provided with
With the annular positive stop lug boss of the annular flange corresponding matching, buffering is provided between the positive stop lug boss and the annular flange
Rubber blanket.
7. explosion-proof lamp pressure-regulating device according to claim 6, it is characterised in that the surrounding of the annular flange
One end of edge towards the movable valve sealing, which extends, to form rib, and the elastic component is set in the movable valve and the limit
Between the boss of position, the positive stop lug boss is located between the elastic component and the rib.
8. explosion-proof lamp pressure-regulating device according to claim 6, it is characterised in that the buffer rubber gasket is installed in
On the end face of the positive stop lug boss；When the pressure release through hole and the valve through hole through connect when, the annular flange against
In the buffer rubber gasket.
9. a kind of explosion-proof lamp, it is characterised in that any one of claim 1 to 8 institute is provided with the housing of the explosion-proof lamp
The explosion-proof lamp pressure-regulating device stated.
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 |
|---|---|
| CN103423720A CN103423720A (en) | 2013-12-04 |
| CN103423720B true CN103423720B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
|---|---|
| CN (1) | CN103423720B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111810033B (en) * | 2020-08-06 | 2022-06-07 | 山东仁达民防工程设备有限公司 | Concatenation formula explosion door subassembly |
| 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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|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10213245A (en) * | 1997-01-28 | 1998-08-11 | Fuji Oozx Inc | Relief valve device |
-
2012
- 2012-05-23 CN CN201210161588.XA patent/CN103423720B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
|---|---|
| CN103423720A (en) | 2013-12-04 |
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