CN106382394B - A kind of explosion-proof switch control valve and its manufacturing method - Google Patents
A kind of explosion-proof switch control valve and its manufacturing method Download PDFInfo
- Publication number
- CN106382394B CN106382394B CN201611036001.7A CN201611036001A CN106382394B CN 106382394 B CN106382394 B CN 106382394B CN 201611036001 A CN201611036001 A CN 201611036001A CN 106382394 B CN106382394 B CN 106382394B
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- China
- Prior art keywords
- air inlet
- core
- exhaust
- deflation
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of explosion-proof switch control valve and its manufacturing methods, wherein, a kind of explosion-proof switch control valve, including valve body, air inlet spool and exhaust plug, air inlet core cavity is offered on valve body, outlet core cavity, air inlet runner, go out flow channel, deflation runner and the venthole for being connected to air inlet core cavity with outlet core cavity, air inlet spool and exhaust plug are protruded into respectively in air inlet core cavity and outlet core cavity, plenum duct is offered on air inlet spool, air inlet runner, plenum duct and venthole are sequentially connected, the gating structure for blocking or connecting plenum duct is provided in plenum duct, the splitter cavity being connected to venthole is provided on exhaust plug, go out flow channel to be connected to splitter cavity respectively with deflation runner, the sealing structure that deflation runner can be blocked is provided in deflation runner.The present invention can play explosion-proof effect and be quick on the draw, particularly suitable under the environment such as coal mine, oil, natural gas.
Description
Technical field
The present invention relates to a kind of switching control pilot and its manufacturing methods, and in particular to a kind of explosion-proof switch control valve and its
Manufacturing method.
Background technology
The industries such as coal mine, oil, natural gas are generally using pneumatic elements such as gas motor, air hoists to reach anti-at this stage
Quick-fried purpose, but electromagnetic switch control valve is still used for the control valve for controlling this kind of pneumatic element switch, pass through 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.
Generally use electromagnetic on-off valve, the use of this switch valve that can not only leave safety in field of explosion at present
Hidden danger, and it has the following disadvantages that poor air-tightness, air inlet is slow, is easily damaged and cannot hold, it is caused to use upper tool
Have compared with big limitation, therefore, design and develop it is a kind of have good explosion-proof performance, air-tightness is good, air inlet is rapid, hand-holdable
Switching control pilot becomes urgent problem in industry.
Invention content
For the technical problems in the prior art, the purpose of the present invention is：A kind of explosion-proof switch control valve is provided.
It is another object of the present invention to：A kind of explosion-proof switch control valve manufacturing method is provided.
The purpose of the invention is achieved by the following technical solution：A kind of explosion-proof switch control valve, including valve body, intake valve
Core and exhaust plug offer air inlet core cavity on valve body, outlet core cavity, air inlet runner, go out flow channel, deflation runner and will
The venthole that air inlet core cavity is connected to outlet core cavity, air inlet spool and exhaust plug protrude into air inlet core cavity and outlet core cavity respectively
In, plenum duct is offered on air inlet spool, air inlet runner, plenum duct and venthole are sequentially connected, are arranged in plenum duct
It is useful for blocking or connecting the gating structure of plenum duct, the splitter cavity being connected to venthole, outlet is provided on exhaust plug
Runner is connected to splitter cavity respectively with deflation runner, and the sealing structure that can block deflation runner is provided in deflation runner.
Preferably, the air inlet spool includes air inlet outer sleeve and air inlet core, 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 is put in plenum duct, and plenum duct is equipped with inlet valve
Portion, air inlet spool are equipped with inlet seal rubber, and the air inlet piston part and inlet seal rubber constitute the gating structure, when into
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, splitter cavity is opened on exhaust outer sleeve, and exhaust gas core is put in splitter cavity, and splitter cavity is equipped with deflation piston part, exhaust
There is exhaust choking portion on core, be vented choking portion and deflation piston part forms the sealing structure, when exhaust choking portion and deflate
When piston part contacts, deflation runner blocks.
Preferably, the exhaust choking portion radially protruding is divided in exhaust gas core, exhaust block part in air relief cock subordinate side
Venthole is offered on stream chamber, splitter cavity is connected to by venthole with flow channel is gone out, when exhaust gas core is downward in being vented outer sleeve
When mobile, deflation runner is connected, and when exhaust gas core resets, exhaust choking portion is contacted with deflation piston part, and deflation runner blocks.
Preferably, the face that contact with deflation piston part of exhaust choking portion is first to contact inclined-plane, be provided on deflation piston part and
First contact inclined-plane matched first cooperation inclined-plane, 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 splitter cavity both sides, and the is respectively arranged in two first seal grooves
One sealing ring, exhaust outer sleeve offer the second seal groove at the accent close to outlet core cavity, are provided in the second seal groove
Second sealing ring, exhaust gas core top offer third seal groove, and the first lip-type packing and are provided in third seal groove
The opening of one lip-type packing is provided with the 4th sealing towards splitter cavity, exhaust gas core at the installation opening of exhaust outer sleeve upper end
Slot is provided with the 4th sealing ring in 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 is set on piston part
It is equipped with and the second contact inclined-plane matched second cooperation inclined-plane；
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
It is equipped with the 5th sealing ring, air inlet outer sleeve offers the 6th seal groove at the accent close to air inlet core cavity, in the 6th seal groove
It is provided with the 6th sealing ring, air inlet core top offers the 7th seal groove, the second lip packing is provided in the 7th seal groove
It encloses and the opening of the second lip-type packing is towards plenum duct, air inlet core is provided at the installation opening of air inlet outer sleeve upper end
7th seal groove is provided with the 7th sealing ring in the 7th seal groove.
Preferably, further include (the first back-moving spring, (the first back-moving spring is set to the bottom of air inlet core cavity, and first resets bullet
Spring both ends are in contact with air inlet core cavity wall surface and air inlet core respectively.
Preferably, further include second back-moving spring, second back-moving spring is set to outlet core cavity bottom, second back-moving spring
Both ends are in contact with outlet core cavity wall surface and exhaust gas core respectively.
Preferably, it is also set up on valve body there are two button, there are two hinged block, two hinged blocks and two buttons for setting on valve body
One-to-one correspondence is hinged together, and two buttons include hinge post, hinged end, pressing plate portion and press plate portion, hinged end, pressing plate portion and
It is set gradually by plate portion, hinged end both sides are extended with hinged otic placode respectively, and the hinged otic placode of hinged end both sides, which is located at, to be hinged
It block both sides and is hinged together by hinge post, two clamp portions do not correspond to air inlet spool and exhaust plug setting, are set by plate portion inclination
It is placed in pressing plate portion, angle of inclination is 5-10 °.
Further include hand cradle, hand cradle includes valve body fixed frame and handle, and handle is fixedly connected with valve body fixed frame, and valve body is solid
Due in valve body fixed frame.
A kind of manufacturing method for explosion-proof switch control valve described in manufacturing claims 1 includes the following steps：
Drilling：In valve body flank hole, the hole bored is connected to air inlet core cavity and outlet core cavity and to form venthole and technique
Hole；
Technique hole plug：By the fabrication hole heating on valve body, a bead is freezed, the bead threading after freezing is arrived
In fabrication hole after heating, when valve body and bead return to room temperature, bead expansion, fabrication hole is shunk, at this point, bead will
Fabrication hole sealing blocks.
The present invention has the following advantages and effects with respect to the prior art：
1, the present invention can play explosion-proof effect and be quick on the draw, particularly suitable for environment such as coal mine, oil, natural gases
Under, the fine-tuning and amount of movement of air inlet core and exhaust gas core of the invention is directly proportional to gas flow, realizes charge flow rate and row
Throughput is linear, in addition the present invention also have the advantages that it is simple in structure be readily produced raw manufacture and easy to use, with wide
Application prospect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the sectional view at A-A in Fig. 2.
Fig. 4 is the vertical view of the valve body of the present invention.
Fig. 5 is the sectional view at B-B in Fig. 4.
Fig. 6 is that the present invention removes the semi-cutaway after hand cradle.
Fig. 7 is the schematic diagram that air-suction state is in after the air inlet core of Fig. 6 moves down.
Fig. 8 is that the exhaust gas core of Fig. 6 moves down rear schematic diagram in a deflated state.
Fig. 9 is the structural schematic diagram of the button of the present invention.
Figure 10 is the structural schematic diagram at another visual angle of the button of Fig. 9.
Specific implementation mode
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment one：
A kind of explosion-proof switch control valve, including valve body 1, air inlet spool and exhaust plug offer air inlet on valve body
Core cavity 2, air inlet runner 4, goes out flow channel 5, deflation runner 6 and is connected to air inlet core cavity with outlet core cavity logical outlet core cavity 3
Stomata 7, air inlet spool and exhaust plug are protruded into respectively in air inlet core cavity and outlet core cavity, offered on air inlet spool supply gas it is logical
Road 8, air inlet runner, plenum duct and venthole are sequentially connected, and are provided in plenum duct for blocking or connecting plenum duct
Gating structure, be provided with the splitter cavity 9 being connected to venthole on exhaust plug, go out flow channel and deflation runner respectively with shunting
Chamber is connected to, and the sealing structure that can block deflation runner is provided in deflation runner.
Preferably, the air inlet spool includes air inlet outer sleeve 10 and air inlet core 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 is put in plenum duct, and plenum duct is equipped with air inlet
Piston part 12, air inlet spool are equipped 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, splitter cavity is opened on exhaust outer sleeve, and exhaust gas core is put in splitter cavity, and splitter cavity is equipped with deflation piston part
16, there is on exhaust gas core exhaust choking portion 17, be vented choking portion and deflation piston part forms the sealing structure, when exhaust blocks
When portion is contacted with deflation piston part, deflation runner blocks.
Preferably, the exhaust choking portion radially protruding is divided in exhaust gas core, exhaust block part in air relief cock subordinate side
Venthole is offered on stream chamber, splitter cavity is connected to by venthole with flow channel is gone out, when exhaust gas core is downward in being vented outer sleeve
When mobile, deflation runner is connected, and when exhaust gas core resets, exhaust choking portion is contacted with deflation piston part, and deflation runner blocks.
This set is advantageous in that, since 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 is larger, exhaust choking portion is connected in air relief cock subordinate side, prevents exhaust gas core
It is ejected exhaust outer sleeve since shunting cavity pressure is larger, is also avoided due to the unexpected thing that exhaust gas core flies out and generates
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 on piston part
With the first contact inclined-plane matched first cooperation inclined-plane 19, the exhaust choking portion is rubber sleeve, and rubber sleeve is socketed on exhaust
On core.
To improve leakproofness, it is close that the present invention reaches face contact by the first contact inclined-plane and the first cooperation contact of incline plane
The effect of envelope increases sealing area while reducing pressure, due to connecing when exhaust choking portion being avoided to be contacted with deflation piston part line
Contacting surface it is small and cause to be vented choking portion and the touching position gas leakage of deflation piston part or due to pressure is larger and the small row of causing of contact area
Gas choking portion and the damage of deflation piston part.
Preferably, exhaust outer sleeve is respectively arranged with the first seal groove in splitter cavity both sides, distinguishes in two first seal grooves
It is provided with the first sealing ring 20, exhaust outer sleeve offers the second seal groove, the second sealing at the accent close to outlet core cavity
The second sealing ring 21 is provided in slot, exhaust gas core top offers third seal groove, the first lip is provided in third seal groove
Shape sealing ring 22 and the opening of the first lip-type packing are towards splitter cavity, and exhaust gas core is at the installation opening of exhaust outer sleeve upper end
It is provided with the 4th seal groove, the 4th sealing ring 23 is provided in the 4th seal groove.
The first lip-type packing of the present invention under the influence of air pressure, can make the wall surface of the first lip-type packing be close to be vented
Outer sleeve internal face, can play good sealing function, and the 4th sealing ring and the first lip-type packing cooperation can be played dual anti-
Leakage acts on, and to prevent from generating leakage at splitter cavity, the first sealing ring is respectively set in present invention both sides above and below splitter cavity, to rise
To 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 is set on piston part
It is equipped with and the second contact inclined-plane matched second cooperation inclined-plane；
To improve leakproofness, it is close that the present invention reaches face contact by the second contact inclined-plane and the second cooperation contact of incline plane
The effect of envelope increases sealing area while reducing pressure, when inlet seal rubber and air inlet piston part line being avoided to contact due to
Contact surface it is small and cause inlet seal rubber with the touching position gas leakage of air inlet piston part or due to pressure is larger and contact area is small makes
It is damaged at inlet seal rubber and 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
It is not provided with the 5th sealing ring 24, air inlet outer sleeve offers the 6th seal groove at the accent close to air inlet core cavity, and the 6th is close
The 6th sealing ring 25 is provided in sealing groove, air inlet core top offers the 7th seal groove, second is provided in the 7th seal groove
The opening of lip-type packing 26 and the second lip-type packing is assembled towards plenum duct, air inlet core close to air inlet outer sleeve upper end
It is provided with the 7th seal groove at mouthful, the 7th sealing ring 27 is provided in the 7th seal groove.
The second lip-type packing of the present invention under the influence of air pressure, can make the wall surface of the second lip-type packing be close to air inlet
Outer sleeve internal face can play good sealing function, and the setting of the 7th sealing ring is the second lip-type packing of cooperation, can be played
Double leak-proof acts on, and to prevent from generating leakage at plenum duct, it is close that present invention both sides above and below plenum duct are respectively set the 5th
Seal, to play the effect of leakproof.
Preferably, further include (the first back-moving spring 28, (the first back-moving spring is set to 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 respectively.
Preferably, further include second back-moving spring 29, second back-moving spring is set to outlet core cavity bottom, and second resets bullet
Spring both 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
The reset of core and exhaust gas core timely and accurately ensure that the job stability of the present invention.
Preferably, it is also set up on valve body there are two button 30, two buttons include hinge post, hinged end 31, pressing plate portion 32
And plate portion 33 is pressed, and it hinged end, pressing plate portion and being set gradually by plate portion, hinged end both sides are extended with hinged otic placode 34 respectively,
There are two hinged blocks, two hinged blocks to be hinged together with two buttons one-to-one correspondence for setting on valve body, the hinged otic placode of hinged end both sides
It being located at hinged block both sides and is hinged together by hinge post, two clamp portions do not correspond to air inlet spool 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, it is known as air inlet button corresponding to the button of air inlet spool setting, corresponds to exhaust plug setting
Button is known as release button.
The setting of air inlet button and release button can make more convenient operation, by lever principle, make air inlet core and exhaust
Core is easier to control, and especially in fine tuning, the pressing quantity by controlling air inlet button and release button can be realized flexibly
Fine tuning.
To make the present invention use more flexible and easy to remove and use, it is preferred that further include hand cradle, hand cradle includes that valve body is solid
Determine frame 35 and handle 36, handle is fixedly connected with valve body fixed frame, and valve body is fixed in valve body fixed frame.
The course of work and operation principle of the present invention：The present invention is illustrated by taking pneumatic boom hoisting as an example, in use, will
Air source is connected on air inlet runner, will be gone out flow channel and is connected on pneumatic boom hoisting, when needing to supply to pneumatic boom hoisting, is pressed
The pressing plate portion of lower air inlet button, air inlet button is pressed downward air inlet core, and air inlet core moves down, (the first back-moving spring compression, air inlet
Caulking gum is separated from air inlet piston part, at this point, plenum duct connects air inlet runner with venthole, air source enters splitter cavity simultaneously
By venthole and goes out flow channel and be output to pneumatic boom hoisting.
When pneumatic boom hoisting needs pressurize, cancel the pressing to air inlet button, at this point, air inlet core is resetted first
It is moved up under the reset response of spring, inlet seal rubber is in contact with air inlet piston part, and inlet seal rubber is by plenum duct
It blocks, air inlet valve core reset is completed.
Gas in pneumatic boom hoisting rests on pneumatic boom hoisting, splitter cavity, goes out in flow channel and venthole, gas
Dynamic boom hoisting gets off current state is static.
When needing to supply to pneumatic boom hoisting again, the above process is executed, and if needing pneumatically to play lifting at this time
When setting release, release button is pressed, the pressing plate portion of release button is pressed downward exhaust gas core, and exhaust gas core moves down, and second resets bullet
Spring compresses, and exhaust choking portion is separated from deflation piston part, and deflation runner is connected, pneumatic boom hoisting, splitter cavity, go out flow channel with
And the gas in venthole, it is released by deflation runner, pneumatic boom hoisting release, when needing to stop release, is cancelled to putting
The pressing of gas button, at this point, exhaust gas core moves up under the reset response of second back-moving spring, inlet seal rubber with into
Vent plug portion is in contact, and inlet seal rubber blocks plenum duct, and exhaust gas core, which resets, to be completed.
The present invention can also adjust out the flow of flow channel output gas, specifically, pressing air inlet button control by control
The air inlet core amount of moving down processed, when the opening of plenum duct is smaller, is sent into out air-flow to control the openings of sizes of plenum duct
The gas flow in road is smaller, therefore, it can be achieved that pneumatic boom hoisting slowly executes vertical motion, if desired pneumatic rise lifts on the contrary
When setting rapid increase, then presses air inlet button and be sent into out the gas of flow channel at this point, the opening of plenum duct is maximum to lower limit
Flow is more, therefore, it can be achieved that the rapid increase of pneumatic boom hoisting acts.
The present invention can also adjust the flow that deflation runner releases gas, specifically, pressing release button control by control
The air inlet core amount of moving down processed, when the opening of deflation runner is smaller, flows into bleed flow to control the openings of sizes of deflation runner
The gas flow in road is smaller, therefore, it can be achieved that pneumatic boom hoisting slowly executes lowering action, if desired pneumatic rise lifts on the contrary
When setting rapid decrease, then release button is pressed to lower limit, at this point, the opening of deflation runner is maximum, flows into the gas of deflation runner
Flow is more, therefore, it can be achieved that the rapid decrease of pneumatic boom hoisting acts.
Embodiment two：
A kind of manufacturing method for manufacturing the explosion-proof switch control valve described in embodiment one includes the following steps：
Drilling：In valve body flank hole, the hole bored is connected to air inlet core cavity and outlet core cavity and to form venthole and technique
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 room temperature, bead expansion, fabrication hole is shunk, at this point, bead
Fabrication hole sealing is blocked.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 diameter is more than fabrication hole 0.07-0.12mm.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (10)
1. a kind of explosion-proof switch control valve, it is characterised in that：Including valve body, air inlet spool and exhaust plug, opened on valve body
Equipped with air inlet core cavity, outlet core cavity, air inlet runner, goes out flow channel, deflation runner and be connected to air inlet core cavity with outlet core cavity
Venthole, air inlet spool and exhaust plug protrude into air inlet core cavity and outlet core cavity, offer and send on air inlet spool respectively
Gas channel, air inlet runner, plenum duct and venthole are sequentially connected, be provided in plenum duct for block or connect supply gas it is logical
The gating structure in road is provided with the splitter cavity being connected to venthole on exhaust plug, go out flow channel and deflation runner respectively with point
Chamber connection is flowed, the sealing structure that deflation runner can be blocked is provided in deflation runner；
It is also set up on valve body there are two button, there are two hinged blocks, two hinged blocks to correspond hinge with two buttons for setting on valve body
It picks up and, two buttons include hinge post, hinged end, pressing plate portion and press plate portion, hinged end, pressing plate portion and press plate portion successively
Setting, hinged end both sides are extended with hinged otic placode respectively, and the hinged otic placode of hinged end both sides is located at hinged block both sides and leads to
It crosses hinge post to be hinged together, two clamp portions do not correspond to air inlet spool and exhaust plug setting, are obliquely installed in pressing plate portion by plate portion
On.
2. explosion-proof switch control valve according to claim 1, it is characterised in that：The air inlet spool includes air inlet housing
Cylinder and air inlet core, air inlet outer sleeve are fixed in air inlet core cavity, and plenum duct is opened on air inlet outer sleeve, air inlet core
It puts in plenum duct, plenum duct is equipped with air inlet piston part, and air inlet spool is equipped 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 control valve according to claim 1 or 2, 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 splitter cavity is opened on exhaust outer sleeve, is vented core
Body is put in splitter cavity, and splitter cavity is equipped 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 being vented choking portion and deflation piston part contacts, deflation runner blocks.
4. explosion-proof switch control valve according to claim 3, it is characterised in that：The exhaust choking portion radially protruding in
Exhaust gas core, exhaust block part is in offering venthole on air relief cock subordinate side, splitter cavity, venthole is by splitter cavity and outlet
Runner is connected to, and 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 deflation runner blocks.
5. explosion-proof switch control valve according to claim 4, it is characterised in that：Exhaust choking portion is contacted with deflation piston part
Face be the first contact inclined-plane, be provided on deflation piston part and the first contact inclined-plane matched first cooperation 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 splitter cavity both sides, and it is close to be respectively arranged with first in two first seal grooves
Seal, exhaust outer sleeve offer the second seal groove at the accent close to outlet core cavity, second are provided in the second seal groove
Sealing ring, exhaust gas core top offer third seal groove, and the first lip-type packing and the first lip are provided in third seal groove
The opening of shape sealing ring is provided with the 4th seal groove towards splitter cavity, exhaust gas core at the installation opening of exhaust outer sleeve upper end,
It is provided with the 4th sealing ring in 4th seal groove.
6. explosion-proof switch control valve according to claim 2, 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 on air inlet piston part and the second contact inclined-plane matched second cooperation inclined-plane；
The air inlet outer sleeve is respectively arranged with the 5th seal groove in plenum duct both sides, is respectively arranged in two the 5th seal grooves
5th sealing ring, air inlet outer sleeve offer the 6th seal groove at the accent close to air inlet core cavity, are arranged in the 6th seal groove
There is the 6th sealing ring, air inlet core top to offer the 7th seal groove, be provided in the 7th seal groove the second lip-type packing and
The opening of second lip-type packing is provided with the 7th towards plenum duct, air inlet core at the installation opening of air inlet outer sleeve upper end
Seal groove is provided with the 7th sealing ring in the 7th seal groove.
7. explosion-proof switch control valve according to claim 2, it is characterised in that：Further include (the first back-moving spring, first
Resetting spring is set to the bottom of air inlet core cavity, (the first back-moving spring both ends respectively with air inlet core cavity wall surface and air inlet core phase
Contact.
8. explosion-proof switch control valve according to claim 3, it is characterised in that：Further include second back-moving spring, second
Resetting spring is set to outlet core cavity bottom, and second back-moving spring both ends connect with outlet core cavity wall surface and exhaust gas core respectively
It touches.
9. explosion-proof switch control valve according to claim 1, it is characterised in that：It is described to be obliquely installed in pressing plate by plate portion
In portion, angle of inclination is 5-10 °；
Further include hand cradle, hand cradle includes valve body fixed frame and handle, and handle is fixedly connected with valve body fixed frame, and valve body is fixed on
In valve body fixed frame.
10. a kind of manufacturing method for explosion-proof switch control valve described in manufacturing claims 1, it is characterised in that including following
Step：
Drilling：In valve body flank hole, the hole bored is connected to air inlet core cavity and outlet core cavity and to form venthole and fabrication hole；
Technique hole plug：By the fabrication hole heating on valve body, a bead is freezed, the bead after freezing is put into heating
In fabrication hole afterwards, when valve body and bead return to room temperature, bead expansion, fabrication hole is shunk, at this point, bead is by technique
Hole sealing blocks.
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| CN201611036001.7A CN106382394B (en) | 2016-11-22 | 2016-11-22 | A kind of explosion-proof switch control valve and its manufacturing method |
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| CN201611036001.7A CN106382394B (en) | 2016-11-22 | 2016-11-22 | A kind of explosion-proof switch control valve and its manufacturing method |
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| CN106382394A CN106382394A (en) | 2017-02-08 |
| CN106382394B true CN106382394B (en) | 2018-10-09 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107320844B (en) * | 2017-09-05 | 2023-04-11 | 无锡市中健科仪有限公司 | Air charging and discharging valve for external counterpulsation |
| CN108644167A (en) * | 2018-05-04 | 2018-10-12 | 广州市海同机电设备有限公司 | A kind of speed stabilizing mechanism and pressure feedback formula speed stabilizing valve of control valve |
| CN109622936A (en) * | 2018-12-27 | 2019-04-16 | 丹阳荣嘉精密机械有限公司 | A kind of core apertures plugging technology |
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|---|---|---|---|---|
| GB820761A (en) * | 1956-07-19 | 1959-09-23 | Yves Chapou | Mixing cock |
| FR2540217A1 (en) * | 1983-02-01 | 1984-08-03 | Standard Hydro Sa | Directional control valve for a pneumatic jack intended particularly for handling and lifting vehicles |
| JPS5934912B2 (en) * | 1979-12-13 | 1984-08-25 | 工業技術院長 | hydraulic switching valve |
| CN201517641U (en) * | 2009-09-16 | 2010-06-30 | 浙江科力汽车配件有限公司 | Stroke control gear shifting box operating valve |
| CN206190978U (en) * | 2016-11-22 | 2017-05-24 | 广州市海同机电设备有限公司 | Protected against explosion on -off control valve |
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2016
- 2016-11-22 CN CN201611036001.7A patent/CN106382394B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820761A (en) * | 1956-07-19 | 1959-09-23 | Yves Chapou | Mixing cock |
| JPS5934912B2 (en) * | 1979-12-13 | 1984-08-25 | 工業技術院長 | hydraulic switching valve |
| FR2540217A1 (en) * | 1983-02-01 | 1984-08-03 | Standard Hydro Sa | Directional control valve for a pneumatic jack intended particularly for handling and lifting vehicles |
| CN201517641U (en) * | 2009-09-16 | 2010-06-30 | 浙江科力汽车配件有限公司 | Stroke control gear shifting box operating valve |
| CN206190978U (en) * | 2016-11-22 | 2017-05-24 | 广州市海同机电设备有限公司 | Protected against explosion on -off control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106382394A (en) | 2017-02-08 |
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Denomination of invention: Explosion proof switch control valve and manufacturing method thereof Effective date of registration: 20220416 Granted publication date: 20181009 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: Guangzhou Haitong Intelligent Equipment Co.,Ltd. Registration number: Y2022980004382 |
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