CN207364293U - The shut-off valve of dual-seal - Google Patents
The shut-off valve of dual-seal Download PDFInfo
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- CN207364293U CN207364293U CN201721422320.1U CN201721422320U CN207364293U CN 207364293 U CN207364293 U CN 207364293U CN 201721422320 U CN201721422320 U CN 201721422320U CN 207364293 U CN207364293 U CN 207364293U
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Abstract
It the utility model is related to valve technology field, particularly disclose a kind of shut-off valve of dual-seal, including valve body, valve seat, flap, valve rod and handwheel, the flap includes main valve clack and adjusts flap, main valve clack is located at the top for adjusting flap, valve rod is through main valve clack with adjusting flap linkage, valve rod forms flexible set with main valve clack, the spring and simultaneously cap being set on valve rod are provided with above the main valve clack, and cap is connected with threaded stem, adjust flap and form spacing cooperation with main valve clack, the valve seat includes the first valve seat and the second valve seat, first valve seat forms sealing with main valve clack and coordinates, second valve seat forms sealing cooperation with adjusting flap, second valve seat is located at the lower section of the first valve seat.Using the above structure, there is provided a kind of structure is novel, and performance is stablized, and effectively prevents medium and sealing surface is washed away, energy automatic compensating after abrasion, sealed reliable is durable, is easy to adjustment maintenance, and flow is big, adjustable range is wide, can voluntarily abolish fouling, the shut-off valve of the convenient dual-seal opened and closed.
Description
Technical field
Valve technology field is the utility model is related to, particularly a kind of shut-off valve of dual-seal.
Background technology
Shut-off valve, is also pipe valve, is a kind of most popular valve, and why very popular it is, is due to be opened and closed
Frictional force is small between sealing surface in journey, relatively durable, and Lift is little, easy to manufacture, easy to maintenance, low in being applicable not only to
Pressure, and it is suitable for high pressure.The closure principle of shut-off valve is, by valve rod active force, to make valve clack sealing surface and sealing surface of seat
Fit closely, prevent flow of media.
At present, common adjustable cut-off valve is mainly made of valve body, valve seat, flap, valve rod and handwheel, with use when
Between growth, medium washes away, and valve clack sealing surface is easy to wear, especially the medium of the impurity containing graininess, once sealing surface quilt
Granule foreign in medium is hindered, and the sealing of whole valve is also failed, so it is resistance to be badly in need of a kind of antiscour of design, sealed reliable
Shut-off valve.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of structure novelty, and performance is stablized, energy after abrasion
Automatic compensating, sealed reliable is durable, is easy to adjustment maintenance, and flow is big, and adjustable range is wide, can voluntarily abolish fouling, convenient to open and close
Dual-seal shut-off valve.
To achieve these goals, the technical solution adopted in the utility model is：A kind of shut-off valve of dual-seal, including
Valve body, valve seat, flap, valve rod and handwheel, are provided with medium channel in valve body, the flap includes main valve clack and regulating valve
Valve, main valve clack are located at the top for adjusting flap, and through main valve clack with adjusting flap linkage, valve rod is formed with main valve clack to be stretched valve rod
Contracting is set, and the spring and simultaneously cap, and cap is connected with threaded stem, spring being set on valve rod are provided with above the main valve clack
Spacing cooperation is formed with main valve clack positioned at flap simultaneously between cap and main valve clack, is adjusted, the valve seat includes the first valve seat and second
Valve seat, the first valve seat form sealing cooperation with main valve clack, and the second valve seat forms sealing cooperation with adjusting flap, and the second valve seat is located at
The lower section of first valve seat.
In above-mentioned technical proposal, main valve clack and flap is adjusted respectively with the first valve seat and the second valve base sealing, and cap is fixed
On valve rod, equivalent to the spring base of spring, adjust flap and set with valve rod linkage, as valve rod moves up and down, valve rod and master
Opposite it can be slided between flap, because adjusting flap is located at the lower section of main valve clack, so adjust flap forms spacing match somebody with somebody with main valve clack
Close, prevent main valve clack from being disengaged with valve rod, when valve rod declines, because simultaneously cap is as valve rod moves, so main valve clack passes through bullet
The elastic force of spring or the gravity of itself are erected on regulating valve valve, i.e., main valve clack is also with decline, because the position of the first valve seat is higher than
Second valve seat, thus decline during main valve clack first with the first valve base sealing, be then further continued for rotation valve rod, make adjusting flap after
Continuous to decline, at this moment spring can be connected on main valve clack under the simultaneously extruding of cap, make the sealing of main valve clack and the first valve seat more firm,
When adjusting flap and the second valve base sealing, valve realizes closure completely, can similarly obtain, during Open valve, adjusting flap and the
Two valve seats first separate, the upward top power that the decompression and adjusting flap then as spring provide, main valve clack and the first valve seat point
Open, realize the opening of valve, the problems such as overcoming and easily wash away sealing surface containing granule medium, cause valve leak, structure letter
Single, sealing effect is good, and under the action of the spring, sealing surface be worn after can automatic compensating, prolong the service life.
Further as the utility model is set, and the medium channel includes intake channel, exit passageway and connection
The communicating passage of intake channel and exit passageway, flap are arranged in communicating passage, and the communicating passage and exit passageway are led
Logical place is provided with through hole, adjusts flap and it is set with the through hole, first valve seat is arranged on the end face of the through hole, main valve
The opposite face of valve and the first valve seat is set in parallel, and the inner cavity for adjusting flap lifting, regulating valve are provided with the main valve clack
The bottom of valve is provided with the sealing of outwardly convex, and the end face of sealing is in cambered surface, and second valve seat is arranged on the through hole
On inner wall, sealing coordinates through through hole and the second valve base sealing, and sealing is provided with circle at position corresponding with the second valve seat
The conical surface.
In above-mentioned technical proposal, intake channel and exit passageway do not limit the flow direction of medium, and intake channel can flow
Into or outflow, exit passageway can also flow into or from, and medium channel is integrally in a zigzag, during valve opening, adjust flap position
In the interior intracavitary of main valve clack, in concealed setting, that is, avoid medium from directly washing away the sealing surface for adjusting flap, improve leakproofness,
Prolong the service life, main valve clack and the first valve seat use flat seal, adjust flap and the second valve seat and are sealed using circular conical surface, drop
The machining accuracy of low second valve seat, more preferably, the end face of sealing is in cambered surface to sealing effect, can facilitate medium by and will not shape
Into medium stagnant area, the health of medium channel is ensured.
As further setting for the utility model, the valve rod is prevented with adjusting the junction of flap and being provided with to cooperate
Defining flange and the limited shoulder rank of flap abjection are only adjusted, defining flange forms clamping with limited shoulder rank and sets.
In above-mentioned technical proposal, the setting of defining flange and limited shoulder rank can effectively prevent that adjust flap disengages with valve rod,
Simple in structure, easy to process, cost is low.
Further as the utility model is set, and is provided with flow guide sleeve in the communicating passage, flow guide sleeve is set in master
The outside of flap, is provided with deflector hole on the correspondence both sides of the flow guide sleeve, the deflector hole of wherein side is set towards intake channel
Put, deflector hole is set along the axially spaced-apart of flow guide sleeve.
In above-mentioned technical proposal, in cylinder, flow guide sleeve is coaxially disposed preferable flow guide sleeve with valve rod, and medium is from deflector hole
In by the setting of, flow guide sleeve be to reduce the flow velocity of medium, reduce wash away dynamics of the medium to sealing surface, improve sealing effect
Fruit, prolongs the service life.
Further as the utility model is set, and the side of the flow guide sleeve towards intake channel is provided with pressure relief opening,
Pressure relief opening is set along the circumferentially extending of flow guide sleeve, and the ring being embedded for the lower end of flow guide sleeve is provided with the inner wall of the communicating passage
Shape groove.
In above-mentioned technical proposal, the setting of pressure relief opening is the shock dynamics in order to reduce medium to flow guide sleeve, pressure relief opening
Projection is in quadrangle, and the setting of pressure relief opening also plays the role of expanding flow, and flow guide sleeve is embedded in communicating passage, and fixation is more firm
Gu, it is not easy to deviate, it is simple in structure, it is easy for installation.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Attached drawing 1 is the utility model specific embodiment structure sectional view；
Attached drawing 2 is the utility model specific embodiment partial sectional view；
Attached drawing 3 is the structure sectional view of the utility model specific embodiment flow guide sleeve；
Attached drawing 4 is the A-A sectional views of attached drawing 3.
Embodiment
Specific embodiment of the utility model as shown in Figs 1-4, a kind of shut-off valve of dual-seal, including valve body 1, valve seat
2nd, flap 3, valve rod 4 and handwheel 5, the flap 3 include main valve clack 31 and adjust flap 32, and main valve clack 31 is located at regulating valve
The top of valve 32, valve rod 4 link through main valve clack 31 with adjusting flap 32, and valve rod 4 is formed to stretch with main valve clack 31 and set, described
The top of main valve clack 31 is provided with the spring 41 and simultaneously cap 42, and cap 42 is threadedly coupled with valve rod 4, spring being set on valve rod 4
41 form spacing cooperation positioned at flap 32 simultaneously between cap 42 and main valve clack 31, is adjusted with main valve clack 31, and the valve seat 2 includes first
21 and second valve seat 22 of valve seat, the first valve seat 21 form sealing with main valve clack 31 and coordinate, and the second valve seat 22 is with adjusting 32 structure of flap
Coordinate into sealing, the second valve seat 22 is located at the lower section of the first valve seat 21.Main valve clack 31 and adjust flap 32 respectively with the first valve seat
21 and second valve seat 22 seal, and cap 42 is fixed on valve rod 4, equivalent to the spring base of spring 41, adjusts flap 32 and valve rod 4
Linkage is set, and as valve rod 4 moves up and down, opposite can be slided between valve rod 4 and main valve clack 31, is located at main valve because adjusting flap 32
The lower section of valve 31, so adjust flap 32 forms spacing cooperation with main valve clack 31, prevents main valve clack 31 from being disengaged with valve rod 4, works as valve
When bar 4 declines, because simultaneously cap 42 is as valve rod 4 moves, so elastic force or the gravity of itself that main valve clack 31 passes through spring 41
Being erected at and adjust on flap 32, i.e. main valve clack 31 is also with decline, because the position of the first valve seat 21 is higher than the second valve seat 22, so
Main valve clack 31 is first sealed with the first valve seat 21 during decline, is then further continued for rotation valve rod 4, is made under adjusting flap 32 continues
Drop, at this moment spring 41 can be connected on main valve clack 31 under the simultaneously extruding of cap 42, make the sealing of 31 and first valve seat 21 of main valve clack
More firmly, when adjusting the sealing of 32 and second valve seat 22 of flap, valve realizes closure completely, can similarly obtain, during Open valve, tune
Section flap 32 is first separated with the second valve seat 22, the upward top power that the decompression and adjusting flap 32 then as spring 41 provide,
Main valve clack 31 is separated with the first valve seat 21, is realized the opening of valve, is overcome and easily wash away sealing surface containing granule medium, causes
The problems such as valve leak, simple in structure, sealing effect is good, and under the action of spring 41, sealing surface can be mended voluntarily after being worn
Repay, prolong the service life.
Be provided with medium channel 11 in above-mentioned valve body 1, medium channel 11 include intake channel 111, exit passageway 112 and
The communicating passage 113 of intake channel 111 and exit passageway 112 is connected, flap 3 is arranged in communicating passage 113, and the connection is logical
With being provided with through hole 1131 at the conducting of exit passageway 112, adjusting flap 32 is set it with the through hole 1131, described in road 113
First valve seat 21 is arranged on the end face of the through hole 1131, and main valve clack 31 and the opposite face of the first valve seat 21 are set in parallel, institute
The inner cavity 311 for being provided with main valve clack 31 and being lifted for adjusting flap 32 is stated, the bottom for adjusting flap 32 is provided with outwardly convex
Sealing 321, the end face of sealing 321 is in cambered surface 3211, and second valve seat 22 is arranged on the inner wall of the through hole 1131, close
Envelope portion 321 coordinates through the sealing of 1131 and second valve seat 22 of through hole, and sealing 321 is set with 22 corresponding position of the second valve seat
There is circular conical surface 3212.Intake channel 111 and exit passageway 112 do not limit the flow direction of medium, and intake channel 111 can flow into
Or outflow, exit passageway 112 can also flow into or from, and medium channel 11 is overall in a zigzag, during valve opening, adjust flap
32 in the inner cavity 311 of main valve clack 31, in concealed setting, that is, avoids medium from directly washing away the sealing surface for adjusting flap 32,
Leakproofness is improved, is prolonged the service life, 31 and first valve seat 21 of main valve clack uses flat seal, adjusts 32 and second valve seat of flap
22 are sealed using circular conical surface, reduce the machining accuracy of the second valve seat 22, more preferably, the end face of sealing 321 is in cambered surface to sealing effect
3211, medium can be facilitated by that and medium stagnant area will not be formed, ensure the health of medium channel 11.
The limit convex that above-mentioned valve rod 4 is provided with mutual cooperation and prevents adjusting flap 32 from deviating from adjusting the junction of flap 32
Edge 41 and limited shoulder rank 322, defining flange 41 form clamping with limited shoulder rank 322 and set.Defining flange 41 and limited shoulder rank 322
Setting can effectively prevent adjust flap 32 disengaged with valve rod 4, simple in structure, easy to process, cost is low.
Flow guide sleeve 114 is provided with above-mentioned communicating passage 113, flow guide sleeve 114 is set in the outside of flap 3, the water conservancy diversion
Deflector hole 1141 is provided with the correspondence both sides of set 114, the deflector hole 1141 of wherein side sets towards intake channel 111, leads
Discharge orifice 1141 is set along the axially spaced-apart of flow guide sleeve 114.For preferable flow guide sleeve 114 in cylinder, flow guide sleeve 114 and valve rod 4 are same
Axis is set, and medium is from deflector hole 1141 by the way that the setting of flow guide sleeve 114 is to reduce the flow velocity of medium, reduces medium pair
Sealing surface washes away dynamics, improves sealing effect, prolongs the service life.
The side of above-mentioned flow guide sleeve 114 towards intake channel 111 is provided with pressure relief opening 1142, and pressure relief opening 1142 is along flow guide sleeve
114 circumferentially extending is set, and the annular groove being embedded for the lower end of flow guide sleeve 114 is provided with the inner wall of the communicating passage 113
1132.The setting of pressure relief opening 1142 is the shock dynamics in order to reduce medium to flow guide sleeve 114, and the projection of pressure relief opening 1142 is in four
Side shape, the setting of pressure relief opening 1142 also play the role of expanding flow, and flow guide sleeve 114 is embedded in communicating passage 113, and fixation is more firm
Gu, it is not easy to deviate, it is simple in structure, it is easy for installation.
The utility model is not limited to above-mentioned embodiment, and persons skilled in the art are public according to the utility model
The content opened, can implement the utility model using other a variety of embodiments, or every use the utility model
Design structure and thinking, do simple change or change, both fall within the scope of protection of the utility model.
Claims (5)
- Medium is provided with 1. a kind of shut-off valve of dual-seal, including valve body, valve seat, flap, valve rod and handwheel, in valve body to lead to Road, it is characterised in that：The flap includes main valve clack and adjusts flap, and main valve clack is located at the top for adjusting flap, and valve rod is worn Main valve clack and adjusting flap linkage are crossed, valve rod forms flexible setting with main valve clack, is provided with and is set in above the main valve clack Spring and simultaneously cap, and cap is connected with threaded stem on valve rod, spring are located at and between cap and main valve clacks, adjust flap and main valve Valve forms spacing cooperation, and the valve seat includes the first valve seat and the second valve seat, and the first valve seat forms sealing with main valve clack and coordinates, the Two valve seats form sealing cooperation with adjusting flap, and the second valve seat is located at the lower section of the first valve seat.
- 2. the shut-off valve of dual-seal according to claim 1, it is characterised in that：The medium channel leads to including import Road, exit passageway and the communicating passage of connection intake channel and exit passageway, flap are arranged in communicating passage, the connection Through hole is provided with the conducting of passage and exit passageway, flap is adjusted and it is set with the through hole, first valve seat is arranged on On the end face of the through hole, the opposite face of main valve clack and the first valve seat is set in parallel, and is provided with the main valve clack for regulating valve The inner cavity of valve lifting, the bottom for adjusting flap are provided with the sealing of outwardly convex, and the end face of sealing is in cambered surface, and described second Valve seat is arranged on the inner wall of the through hole, and sealing coordinates through through hole and the second valve base sealing, sealing and the second valve seat pair Circular conical surface is provided with the position answered.
- 3. the shut-off valve of dual-seal according to claim 1 or 2, it is characterised in that：The valve rod is with adjusting flap Junction, which is provided with to cooperate, prevents the defining flange and the limited shoulder rank that adjust flap abjection, defining flange and limited shoulder rank structure Set into clamping.
- 4. the shut-off valve of dual-seal according to claim 2, it is characterised in that：Water conservancy diversion is provided with the communicating passage Set, flow guide sleeve are set in the outside of main valve clack, the water conservancy diversion of deflector hole, wherein side are provided with the correspondence both sides of the flow guide sleeve Hole is set towards intake channel, and deflector hole is set along the axially spaced-apart of flow guide sleeve.
- 5. the shut-off valve of dual-seal according to claim 4, it is characterised in that：The flow guide sleeve is towards intake channel Side is provided with pressure relief opening, and pressure relief opening sets along the circumferentially extending of flow guide sleeve, is provided with the inner wall of the communicating passage for leading The annular groove that the lower end of stream set is embedded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422320.1U CN207364293U (en) | 2017-10-30 | 2017-10-30 | The shut-off valve of dual-seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422320.1U CN207364293U (en) | 2017-10-30 | 2017-10-30 | The shut-off valve of dual-seal |
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| Publication Number | Publication Date |
|---|---|
| CN207364293U true CN207364293U (en) | 2018-05-15 |
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ID=62344677
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721422320.1U Active CN207364293U (en) | 2017-10-30 | 2017-10-30 | The shut-off valve of dual-seal |
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| Country | Link |
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| CN (1) | CN207364293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442054A (en) * | 2018-11-27 | 2019-03-08 | 浙江双华阀门科技有限公司 | A kind of double-sealed stop valve |
| CN110925447A (en) * | 2019-12-12 | 2020-03-27 | 浙江理工大学 | Double-valve clack magnetic stop regulating valve |
| CN111734876A (en) * | 2020-08-19 | 2020-10-02 | 广东三方利精密技术有限公司 | Pilot-operated high-pressure electromagnetic valve |
-
2017
- 2017-10-30 CN CN201721422320.1U patent/CN207364293U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442054A (en) * | 2018-11-27 | 2019-03-08 | 浙江双华阀门科技有限公司 | A kind of double-sealed stop valve |
| CN109442054B (en) * | 2018-11-27 | 2024-03-29 | 浙江双华阀门科技有限公司 | Double-seal stop valve |
| CN110925447A (en) * | 2019-12-12 | 2020-03-27 | 浙江理工大学 | Double-valve clack magnetic stop regulating valve |
| CN110925447B (en) * | 2019-12-12 | 2024-01-30 | 浙江理工大学 | Double-valve clack magnetic stop regulating valve |
| CN111734876A (en) * | 2020-08-19 | 2020-10-02 | 广东三方利精密技术有限公司 | Pilot-operated high-pressure electromagnetic valve |
| CN111734876B (en) * | 2020-08-19 | 2020-12-22 | 广东三方利精密技术有限公司 | Pilot-operated high-pressure electromagnetic valve |
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