CN206190978U - Protected against explosion on -off control valve - Google Patents
Protected against explosion on -off control valve Download PDFInfo
- Publication number
- CN206190978U CN206190978U CN201621264330.2U CN201621264330U CN206190978U CN 206190978 U CN206190978 U CN 206190978U CN 201621264330 U CN201621264330 U CN 201621264330U CN 206190978 U CN206190978 U CN 206190978U
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- CN
- China
- Prior art keywords
- air inlet
- exhaust
- core
- deflation
- gas
- Prior art date
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- Withdrawn - After Issue
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a protected against explosion on -off control valve, including the valve body, advance gas valve element and arrange gas valve element, into gas core chamber has been seted up on the valve body, go out the gas core chamber, air inlet channel, go out the flow channel, simple structure, advance gas valve element and arrange gas valve element to stretch respectively into to enter the gas core chamber and go out the gas core chamber in, advance and seted up gas feeding channel on the gas valve element, which comprises the following components: a valve body, gas feeding channel and air vent connect gradually, be provided with the gating structure that is used for cuting or putting through gas feeding channel among the gas feeding channel, be provided with the reposition of redundant personnel chamber with the air vent intercommunication on the discharge valve core, go out flow channel and gassing runner respectively with reposition of redundant personnel chamber intercommunication, be provided with the seal structure that the runner of will exitting cuted in the gassing runner. The utility model discloses can play blast proof effect and reaction sensitivity, be particularly suitable for being used for under the environment such as colliery, oil, the natural gas.
Description
Technical field
The utility model is related to a kind of switching control pilot, and in particular to a kind of explosion-proof switch controls valve.
Background technology
To commonly use the pneumatic elements such as gas motor, air hoist anti-to reach for the industry such as colliery, oil, natural gas at this stage
Quick-fried purpose, but for controlling the control valve of this kind of pneumatic element switch still to control valve using electromagnetic switch, by electromagnetic force
Size carry out the openings of sizes of application valve body, although valve inner electric current is smaller, but it is hidden to leave safety in field of explosion
Suffer from.
What is commonly used in field of explosion at present is electromagnetic on-off valve, and the use of this switch valve can not only leave safety
Hidden danger, and it has the following disadvantages that poor air-tightness, air inlet are slow, is easily damaged and can not be hand-held etc., causes it to use tool
Have compared with big limitation, therefore, design and develop it is a kind of with good explosion-proof performance, air-tightness is good, air inlet is rapid, hand-holdable
Switching control pilot turns into urgent problem in industry.
Utility model content
For technical problem present in prior art, the purpose of this utility model is：A kind of explosion-proof switch control is provided
Valve processed.
The purpose of this utility model is achieved through the following technical solutions：A kind of explosion-proof switch controls valve, including valve body, enters
Gas valve core and exhaust plug, offered on valve body air inlet core cavity, outlet core cavity, air inlet runner, go out flow channel, deflation runner with
And the passage that air inlet core cavity is connected with outlet core cavity, air inlet valve element and exhaust plug protrude into air inlet core cavity and outlet respectively
In core cavity, plenum duct is offered on air inlet valve element, air inlet runner, plenum duct and passage are sequentially connected, in plenum duct
The gating structure for blocking or connecting plenum duct is provided with, the branch chamber connected with passage is provided with exhaust plug,
Go out flow channel to be connected with branch chamber respectively with deflation runner, the sealing knot that deflation runner can be blocked is provided with deflation runner
Structure.
Preferably, the air inlet valve element includes air inlet outer sleeve and air inlet core body, and air inlet outer sleeve is fixed on into gaseous core
In chamber, plenum duct is opened on air inlet outer sleeve, and air inlet core body is put in plenum duct, and plenum duct is provided with inlet valve
Portion, air inlet valve element is provided with inlet seal rubber, and the air inlet piston part and inlet seal rubber constitute the gating structure, when entering
When hermetic seal rubber is in contact with air inlet piston part, inlet seal rubber blocks plenum duct.
Preferably, the exhaust plug includes exhaust outer sleeve and exhaust gas core, and exhaust outer sleeve is fixed on gaseous core
In chamber, branch chamber is opened on exhaust outer sleeve, and exhaust gas core is put in branch chamber, and branch chamber is provided with deflation piston part, exhaust
With exhaust choking portion on core body, exhaust choking portion and deflation piston part form the sealing structure, when exhaust choking portion and deflation
When piston part contacts, deflation runner is blocked.
Preferably, the exhaust choking portion radially protruding in exhaust gas core, in air relief cock subordinate side divide by exhaust block part
Stream offers venthole on chamber, venthole by branch chamber and outlet flow passage, when exhaust gas core in outer sleeve is vented downwards
When mobile, deflation runner is connected, and when exhaust gas core resets, exhaust choking portion is contacted with deflation piston part, and bleed passage is blocked.
Preferably, the face that contact with deflation piston part of exhaust choking portion is first to contact inclined-plane, be provided with deflation piston part with
The first cooperation inclined-plane that first contact inclined-plane is engaged, the exhaust choking portion is rubber sleeve, and rubber sleeve is socketed on exhaust gas core
On；
Exhaust outer sleeve is respectively arranged with the first seal groove in branch chamber both sides, and the is respectively arranged with two first seal grooves
One sealing ring, exhaust outer sleeve offers the second seal groove at the accent near outlet core cavity, is provided with the second seal groove
Second sealing ring, exhaust gas core top offers the 3rd seal groove, and the first lip-type packing and are provided with the 3rd seal groove
The opening of one lip-type packing is provided with the 4th sealing towards branch chamber, exhaust gas core at the installation opening of exhaust outer sleeve upper end
Groove, the 4th sealing ring is provided with the 4th seal groove.
Preferably, the face that the inlet seal rubber is contacted with air inlet piston part is the second contact inclined-plane, and air inlet sets on piston part
It is equipped with and the second cooperation inclined-plane that inclined-plane is engaged is contacted with second；
The air inlet outer sleeve is respectively arranged with the 5th seal groove in plenum duct both sides, is set respectively in two the 5th seal grooves
The 5th sealing ring is equipped with, air inlet outer sleeve offers the 6th seal groove at the accent near air inlet core cavity, in the 6th seal groove
The 6th sealing ring is provided with, air inlet core body top offers the 7th seal groove, the second lip packing is provided with the 7th seal groove
The opening of circle and the second lip-type packing is provided with towards plenum duct, air inlet core body at the installation opening of air inlet outer sleeve upper end
7th seal groove, the 7th sealing ring is provided with the 7th seal groove.
Preferably, also including (the first back-moving spring, (the first back-moving spring is arranged at the bottom of air inlet core cavity, the first reset bullet
Spring two ends are in contact with air inlet core cavity wall surface and air inlet core body respectively.
Preferably, also including second back-moving spring, second back-moving spring is arranged at outlet core cavity bottom, second back-moving spring
Two ends are in contact with outlet core cavity wall surface and exhaust gas core respectively.
Preferably, two buttons are additionally provided with valve body, two hinged blocks, two hinged blocks and two buttons is provided with valve body
One-to-one corresponding is hinged together, and two buttons include hinge post, hinged end, pressing plate portion and press plate portion, hinged end, pressing plate portion and
Set gradually by plate portion, hinged end both sides are extended with are hinged otic placode respectively, hinged end both sides be hinged otic placode respectively be located at be hinged
Block both sides and be hinged together by hinge post, two clamp portions not Dui Ying air inlet valve element and exhaust plug set, inclined by plate portion and set
It is placed in pressing plate portion, angle of inclination is 5-10 °；
Also include hand cradle, hand cradle includes valve body fixed mount and handle, and handle is fixedly connected with valve body fixed mount, and valve body is solid
Due in valve body fixed mount.
The utility model has the following advantages and effect relative to prior art：
1st, the utility model can play explosion-proof effect and be quick on the draw, and be particularly suitable for colliery, oil, natural gas etc.
Under environment, the utility model is fine-tuning and amount of movement of air inlet core body and exhaust gas core is directly proportional to gas flow, realizes air inlet
Flow and extraction flow are linear, additionally, the utility model is also readily produced raw manufacture and wieldy with simple structure
Advantage, has broad application prospects.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the sectional view at A-A in Fig. 2.
Fig. 4 is the top view of valve body of the present utility model.
Fig. 5 is the sectional view at B-B in Fig. 4.
Fig. 6 is the semi-cutaway after the utility model removes hand cradle.
Fig. 7 be Fig. 6 air inlet core body move down after in air-suction state schematic diagram.
Fig. 8 be Fig. 6 exhaust gas core move down after in deflation status schematic diagram.
Fig. 9 is the structural representation of button of the present utility model.
Figure 10 is the structural representation at another visual angle of the button of Fig. 9.
Specific embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment one：
A kind of explosion-proof switch controls valve, including valve body 1, air inlet valve element and exhaust plug, and air inlet is offered on valve body
Core cavity 2, outlet core cavity 3, air inlet runner 4, go out flow channel 5, deflation runner 6 and by air inlet core cavity connected with outlet core cavity it is logical
Stomata 7, air inlet valve element and exhaust plug are protruded into air inlet core cavity and outlet core cavity respectively, are offered on air inlet valve element and are supplied gas logical
Road 8, air inlet runner, plenum duct and passage are sequentially connected, and are provided with plenum duct for blocking or connecting plenum duct
Gating structure, the branch chamber 9 connected with passage is provided with exhaust plug, go out flow channel and deflation runner respectively with shunting
Chamber is connected, and the sealing structure that can be blocked deflation runner is provided with deflation runner.
Preferably, the air inlet valve element include air inlet outer sleeve 10 and air inlet core body 11, air inlet outer sleeve be fixed on into
In gaseous core chamber, plenum duct is opened on air inlet outer sleeve, and air inlet core body is put in plenum duct, and plenum duct is provided with air inlet
Piston part 12, air inlet valve element is provided with inlet seal rubber 13, and the air inlet piston part and inlet seal rubber constitute the gating knot
Structure, when inlet seal rubber is in contact with air inlet piston part, inlet seal rubber blocks plenum duct.
Preferably, the exhaust plug includes exhaust outer sleeve 14 and exhaust gas core 15, and exhaust outer sleeve is fixed on
In gaseous core chamber, branch chamber is opened on exhaust outer sleeve, and exhaust gas core is put in branch chamber, and branch chamber is provided with deflation piston part
16, there is exhaust choking portion 17 on exhaust gas core, exhaust choking portion and deflation piston part form the sealing structure, when exhaust is blocked
When portion contacts with deflation piston part, deflation runner is blocked.
Preferably, the exhaust choking portion radially protruding in exhaust gas core, in air relief cock subordinate side divide by exhaust block part
Stream offers venthole on chamber, venthole by branch chamber and outlet flow passage, when exhaust gas core in outer sleeve is vented downwards
When mobile, deflation runner is connected, and when exhaust gas core resets, exhaust choking portion is contacted with deflation piston part, and bleed passage is blocked.
This set is advantageous in that, because exhaust block part is in air relief cock subordinate side and exhaust choking portion radially protruding
In exhaust gas core, therefore, when shunting cavity pressure and being larger, exhaust choking portion is connected in air relief cock subordinate side, prevents exhaust gas core
Exhaust outer sleeve is ejected because shunting cavity pressure is larger, the unexpected thing produced because exhaust gas core flies out is it also avoid
Therefore.
Preferably, the face that exhaust choking portion is contacted with deflation piston part is the first contact inclined-plane 18, and deflation is provided with piston part
The first cooperation inclined-plane 19 that inclined-plane is engaged is contacted with first, the exhaust choking portion is rubber sleeve, and rubber sleeve is socketed on exhaust
On core body.
To improve sealing, the utility model is connect by the first contact inclined-plane and the first cooperation contact of incline plane so as to reach face
Touch the effect of sealing, increase sealing area while reducing pressure, it is to avoid exhaust choking portion and during the linear contact lay of deflation piston part by
It is small in contact surface and cause exhaust choking portion and the touching position gas leakage of deflation piston part or contact area is small because pressure is larger makes
Damaged into exhaust choking portion and deflation piston part.
Preferably, exhaust outer sleeve is respectively arranged with the first seal groove in branch chamber both sides, in two first seal grooves respectively
The first sealing ring 20 is provided with, exhaust outer sleeve offers the second seal groove, the second sealing at the accent near outlet core cavity
The second sealing ring 21 is provided with groove, exhaust gas core top offers the 3rd seal groove, the first lip is provided with the 3rd seal groove
Towards branch chamber, exhaust gas core is at the installation opening of exhaust outer sleeve upper end for the opening of shape sealing ring 22 and the first lip-type packing
The 4th seal groove is provided with, the 4th sealing ring 23 is provided with the 4th seal groove.
First lip-type packing of the present utility model under the influence of air pressure, can be close to the wall of the first lip-type packing
Exhaust outer sleeve internal face, can play good sealing function, and the 4th sealing ring and the first lip-type packing coordinate can play double
Leakproof effect again, to prevent that leakage is produced at branch chamber, the utility model is respectively provided with the first sealing in the upper and lower both sides of branch chamber
Circle, so as to play the effect of leakproof.
Preferably, the face that the inlet seal rubber is contacted with air inlet piston part is the second contact inclined-plane, and air inlet sets on piston part
It is equipped with and the second cooperation inclined-plane that inclined-plane is engaged is contacted with second；
To improve sealing, the utility model is connect by the second contact inclined-plane and the second cooperation contact of incline plane so as to reach face
The effect of sealing is touched, sealing area is increased while reducing pressure, it is to avoid when inlet seal rubber is with air inlet piston part linear contact lay
Cause inlet seal rubber and the touching position gas leakage of air inlet piston part or the contact area because pressure is larger because contact surface is small
It is small to cause inlet seal rubber to be damaged with air inlet piston part.
Preferably, air inlet outer sleeve is respectively arranged with the 5th seal groove in plenum duct both sides, divides in two the 5th seal grooves
The 5th sealing ring 24 is not provided with, and air inlet outer sleeve offers the 6th seal groove at the accent near air inlet core cavity, and the 6th is close
The 6th sealing ring 25 is provided with sealing groove, air inlet core body top offers the 7th seal groove, second is provided with the 7th seal groove
Assembled near air inlet outer sleeve upper end towards plenum duct, air inlet core body the opening of lip-type packing 26 and the second lip-type packing
The 7th seal groove is provided with mouthful, the 7th sealing ring 27 is provided with the 7th seal groove.
Second lip-type packing of the present utility model under the influence of air pressure, can be close to the wall of the second lip-type packing
Air inlet outer sleeve internal face, can play good sealing function, and the setting of the 7th sealing ring is to coordinate the second lip-type packing, energy
Double leak-proof effect is played, to prevent that leakage is produced at plenum duct, the utility model sets respectively in the upper and lower both sides of plenum duct
The 5th sealing ring is put, so as to play the effect of leakproof.
Preferably, also including (the first back-moving spring 28, (the first back-moving spring is arranged at the bottom of air inlet core cavity, and first resets
Both ends of the spring is in contact with air inlet core cavity wall surface and air inlet core body respectively.
Preferably, also including second back-moving spring 29, second back-moving spring is arranged at outlet core cavity bottom, the second reset bullet
Spring two ends are in contact with outlet core cavity wall surface and exhaust gas core respectively.(the first back-moving spring and second back-moving spring can make air inlet
Core body and exhaust gas core reset timely and accurately, it is ensured that job stability of the present utility model.
Preferably, two buttons 30 are additionally provided with valve body, two buttons include hinge post, hinged end 31, pressing plate portion 32
And by plate portion 33, hinged end, pressing plate portion and set gradually by plate portion, hinged end both sides are extended with are hinged otic placode 34 respectively,
It is provided with two hinged blocks on valve body, two hinged blocks are corresponded with two buttons and are hinged together, hinged end both sides are hinged otic placode
It is located at respectively and hinged block both sides and is hinged together by hinge post, two clamp portions does not correspond to air inlet valve element and exhaust plug setting,
It is obliquely installed in pressing plate portion by plate portion, angle of inclination is 5-10 °.
For convenience of description, the button set corresponding to air inlet valve element is referred to as air inlet button, is set corresponding to exhaust plug
Button is referred to as release button.
The setting of air inlet button and release button can make more convenient operation, by lever principle, make air inlet core body and exhaust
Core body is easier control, flexible by controlling the pressing quantity of air inlet button and release button to be capable of achieving particularly in fine setting
Fine setting.
It is more flexible and be easy to move and use to use the utility model, it is preferred that also including hand cradle, hand cradle includes valve
Body fixed mount 35 and handle 36, handle are fixedly connected with valve body fixed mount, and valve body is fixed in valve body fixed mount.
The course of work of the present utility model and operation principle：The utility model is illustrated by taking pneumatic boom hoisting as an example,
When using, source of the gas is connected on air inlet runner, flow channel will be gone out and be connected on pneumatic boom hoisting, when needs are to pneumatic boom hoisting
During supply, air inlet button is pressed, the pressing plate portion of air inlet button is pressed downward air inlet core body, and air inlet core body is moved down, (the first back-moving spring
Compression, inlet seal rubber is separated from air inlet piston part, and now, plenum duct connects air inlet runner with passage, and source of the gas enters
To branch chamber and by venthole and go out flow channel output to pneumatic boom hoisting.
When pneumatic boom hoisting needs pressurize, cancel the pressing to air inlet button, now, air inlet core body resets first
Moved up under the reset response of spring, inlet seal rubber is in contact with air inlet piston part, inlet seal rubber is by plenum duct
Block, air inlet valve core reset is completed.
Gas in pneumatic boom hoisting rests on pneumatic boom hoisting, branch chamber, goes out in flow channel and passage, gas
Dynamic boom hoisting gets off current state is static.
When needing to be supplied to pneumatic boom hoisting again, said process is performed, and if now needing pneumatic lifting
When putting release, release button is pressed, the pressing plate portion of release button is pressed downward exhaust gas core, and exhaust gas core is moved down, the second reset bullet
Spring compresses, and exhaust choking portion is separated from deflation piston part, and deflation runner is connected, pneumatic boom hoisting, branch chamber, go out flow channel with
And the gas in passage, released by deflation runner, pneumatic boom hoisting release, when needing to stop release, cancel to putting
The pressing of gas button, now, exhaust gas core is moved up under the reset response of second back-moving spring, inlet seal rubber with enter
Vent plug portion is in contact, and inlet seal rubber blocks plenum duct, and exhaust gas core resets and completes.
The utility model can also adjust out the flow of flow channel output gas, specifically, being pressed by controlling pressing air inlet
Button controls the air inlet core body amount of moving down, so as to control the openings of sizes of plenum duct, when the opening of plenum duct is smaller, sends into out
The gas flow of flow channel is smaller, therefore, it is capable of achieving pneumatic boom hoisting and slowly performs vertical motion, conversely if desired pneumatic
During device for hoisting rapid increase, then air inlet button to lower limit is pressed, now, the opening of plenum duct is maximum, sends into out flow channel
Gas flow is more, therefore, it is capable of achieving the rapid increase action of pneumatic boom hoisting.
The utility model can also adjust the flow that deflation runner releases gas, specifically, being pressed by controlling pressing deflation
Button controls the air inlet core body amount of moving down, so as to control the openings of sizes of deflation runner, when the opening of deflation runner is smaller, inflow is put
The gas flow of flow channel is smaller, therefore, it is capable of achieving pneumatic boom hoisting and slowly performs down maneuver, conversely if desired pneumatic
During device for hoisting rapid decrease, then release button to lower limit is pressed, now, the opening of deflation runner is maximum, flows into deflation runner
Gas flow is more, therefore, it is capable of achieving the rapid decrease action of pneumatic boom hoisting.
Embodiment two：
A kind of manufacture method for manufacturing the explosion-proof switch control valve described in embodiment one, comprises the following steps：
Drilling：In valve body flank hole, the hole bored connects to form passage and technique with air inlet core cavity and outlet core cavity
Hole 37；
Technique hole plug：By the fabrication hole heating on valve body, a bead 38 is freezed, the bead after freezing is put into
In fabrication hole after to heating, when valve body and bead return to normal temperature, bead expansion, fabrication hole shrinks, now, bead
Fabrication hole sealing blocking is got up.Bead expansion energy well seals fabrication hole, is preventing the leakage contribution of gas just
Often work.
The bead can be steel ball, and at room temperature, bead is with diameter greater than fabrication hole 0.07-0.12mm.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (9)
1. a kind of explosion-proof switch controls valve, it is characterised in that：Including valve body, air inlet valve element and exhaust plug, opened on valve body
Air inlet core cavity, outlet core cavity are provided with, air inlet runner, are gone out flow channel, deflation runner and air inlet core cavity is connected with outlet core cavity
Passage, air inlet valve element and exhaust plug protrude into air inlet core cavity and outlet core cavity, are offered on air inlet valve element and sent respectively
Gas passage, air inlet runner, plenum duct and passage are sequentially connected, and to be provided with plenum duct and supply gas logical for blocking or connect
The gating structure in road, is provided with the branch chamber connected with passage on exhaust plug, go out flow channel and deflation runner respectively with point
The connection of stream chamber, is provided with the sealing structure that can be blocked deflation runner in deflation runner.
2. explosion-proof switch according to claim 1 controls valve, it is characterised in that：The air inlet valve element includes air inlet overcoat
Cylinder and air inlet core body, air inlet outer sleeve are fixed in air inlet core cavity, and plenum duct is opened on air inlet outer sleeve, air inlet core body
Put in plenum duct, plenum duct is provided with air inlet piston part, air inlet valve element is provided with inlet seal rubber, the air inlet piston part
The gating structure, when inlet seal rubber is in contact with air inlet piston part, inlet seal rubber are constituted with inlet seal rubber
Plenum duct is blocked.
3. explosion-proof switch according to claim 1 and 2 controls valve, it is characterised in that：The exhaust plug includes exhaust
Outer sleeve and exhaust gas core, exhaust outer sleeve are fixed in outlet core cavity, and branch chamber is opened on exhaust outer sleeve, is vented core
Body is put in branch chamber, and branch chamber is provided with deflation piston part, has exhaust choking portion on exhaust gas core, is vented choking portion and deflation
Piston part forms the sealing structure, and when exhaust choking portion is contacted with deflation piston part, deflation runner is blocked.
4. explosion-proof switch according to claim 3 controls valve, it is characterised in that：It is described exhaust choking portion radially protruding in
Exhaust gas core, exhaust block part offers venthole in air relief cock subordinate side in branch chamber, venthole is by branch chamber and outlet
Flow passage, when exhaust gas core in being vented outer sleeve when moving down, deflation runner is connected, when exhaust gas core resets, row
Gas choking portion is contacted with deflation piston part, and bleed passage is blocked.
5. explosion-proof switch according to claim 4 controls valve, it is characterised in that：Exhaust choking portion is contacted with deflation piston part
Face be the first contact inclined-plane, contact that inclined-plane is engaged with first first is provided with deflation piston part and coordinates inclined-plane, the row
Gas choking portion is rubber sleeve, and rubber sleeve is socketed on exhaust gas core；
Exhaust outer sleeve is respectively arranged with the first seal groove in branch chamber both sides, and it is close to be respectively arranged with first in two first seal grooves
Seal, exhaust outer sleeve offers the second seal groove at the accent near outlet core cavity, and second is provided with the second seal groove
Sealing ring, exhaust gas core top offers the 3rd seal groove, and the first lip-type packing and the first lip are provided with the 3rd seal groove
The opening of shape sealing ring is provided with the 4th seal groove towards branch chamber, exhaust gas core at the installation opening of exhaust outer sleeve upper end,
The 4th sealing ring is provided with 4th seal groove.
6. explosion-proof switch according to claim 2 controls valve, it is characterised in that：The inlet seal rubber and inlet valve
The face of portion's contact is the second contact inclined-plane, is provided with air inlet piston part and the second cooperation inclined-plane that inclined-plane is engaged is contacted with second；
The air inlet outer sleeve is respectively arranged with the 5th seal groove in plenum duct both sides, is respectively arranged with two the 5th seal grooves
5th sealing ring, air inlet outer sleeve offers the 6th seal groove at the accent near air inlet core cavity, is set in the 6th seal groove
Have the 6th sealing ring, air inlet core body top offers the 7th seal groove, be provided with the 7th seal groove the second lip-type packing and
The opening of the second lip-type packing is provided with the 7th towards plenum duct, air inlet core body at the installation opening of air inlet outer sleeve upper end
Seal groove, the 7th sealing ring is provided with the 7th seal groove.
7. explosion-proof switch according to claim 2 controls valve, it is characterised in that：Also include (the first back-moving spring, first
Back-moving spring is arranged at the bottom of air inlet core cavity, (the first back-moving spring two ends respectively with air inlet core cavity wall surface and air inlet core body phase
Contact.
8. explosion-proof switch according to claim 3 controls valve, it is characterised in that：Also include second back-moving spring, second
Back-moving spring is arranged at outlet core cavity bottom, and second back-moving spring two ends connect with outlet core cavity wall surface and exhaust gas core respectively
Touch.
9. explosion-proof switch according to claim 1 controls valve, it is characterised in that：Two buttons are additionally provided with valve body,
Two hinged blocks are provided with valve body, two hinged blocks are corresponded with two buttons and are hinged together, two buttons include hinge post, hinge
Meet end, pressing plate portion and by plate portion, hinged end, pressing plate portion and set gradually by plate portion, hinged end both sides are stretched out hinged respectively
Ear connecting plate, the otic placode that is hinged of hinged end both sides is located at hinged block both sides and is hinged together by hinge post respectively, and two clamp portions are other
Correspondence air inlet valve element and exhaust plug are set, and are obliquely installed in pressing plate portion by plate portion, and angle of inclination is 5-10 °；
Also include hand cradle, hand cradle includes valve body fixed mount and handle, and handle is fixedly connected with valve body fixed mount, and valve body is fixed on
In valve body fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621264330.2U CN206190978U (en) | 2016-11-22 | 2016-11-22 | Protected against explosion on -off control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621264330.2U CN206190978U (en) | 2016-11-22 | 2016-11-22 | Protected against explosion on -off control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190978U true CN206190978U (en) | 2017-05-24 |
Family
ID=58723829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621264330.2U Withdrawn - After Issue CN206190978U (en) | 2016-11-22 | 2016-11-22 | Protected against explosion on -off control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382394A (en) * | 2016-11-22 | 2017-02-08 | 广州市海同机电设备有限公司 | Anti-explosion type on-off control valve and manufacturing method thereof |
-
2016
- 2016-11-22 CN CN201621264330.2U patent/CN206190978U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382394A (en) * | 2016-11-22 | 2017-02-08 | 广州市海同机电设备有限公司 | Anti-explosion type on-off control valve and manufacturing method thereof |
| CN106382394B (en) * | 2016-11-22 | 2018-10-09 | 广州市海同机电设备有限公司 | A kind of explosion-proof switch control valve and its manufacturing method |
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Granted publication date: 20170524 Effective date of abandoning: 20181009 |