CN109114241A - Two way seal gate valve with double valve plates - Google Patents
Two way seal gate valve with double valve plates Download PDFInfo
- Publication number
- CN109114241A CN109114241A CN201811203143.7A CN201811203143A CN109114241A CN 109114241 A CN109114241 A CN 109114241A CN 201811203143 A CN201811203143 A CN 201811203143A CN 109114241 A CN109114241 A CN 109114241A
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- rod
- way seal
- double
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- 238000010276 construction Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 37
- 230000000694 effects Effects 0.000 abstract description 17
- 238000003825 pressing Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/047—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with wedge-shaped obturating 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The present invention relates to a kind of two way seal gate valve with double valve plates, including valve body, valve body has valve chamber and is connected with executing agency, valve seat there are two being oppositely arranged on valve body, in being correspondingly provided with two pieces of valve plates and two groups of wedge structures in valve chamber, the inclined-plane of every group of wedge structure is opposite with corresponding valve seat to enclose to set to form a wedge shape space, is equipped in the non-tight plate face of two valve plates and the sliding block of corresponding wedge structure inclined-plane cooperation；Two valve plates are connect to all have valve opening state and close valve state with executing agency, and under close valve state, valve plate and corresponding valve seat fitting and sliding block is abutted with corresponding wedge structure inclined-plane, and under valve opening state, valve plate is separated with corresponding valve seat.Two way seal gate valve provided by the invention with double valve plates is bonded with two sealing surface of seats of valve body respectively by two pieces of valve plates, realizes two way seal, sealing is more reliable, and sealing effect is preferable.
Description
Technical field
The invention belongs to valve technology fields, and in particular to a kind of two way seal gate valve with double valve plates.
Background technique
In the industrial production, pressure, flow direction of pipeline internal medium etc. can change with production status, frequently appear in not
The opposite situation with the flow direction of pipeline internal medium under operating condition and high and low pressure side.And common gate valve often only has side equipped with close
Cover can only bear corresponding side high pressure, and when high-pressure side becomes the other side, sealing effect weakens significantly, it is possible to produce leakage,
It influences production and even causes safety accident.If installed using 2 gate valves are opposite, though two way seal can be realized, increases and set
Standby investment, and complexity is controlled, reliability is low.
Summary of the invention
The present embodiments relate to a kind of two way seal gate valve with double valve plates, the part that can at least solve the prior art lack
It falls into.
The present embodiments relate to a kind of two way seal gate valve with double valve plates, including valve body, the valve body have valve chamber
And be connected with executing agency, be oppositely arranged on the valve body there are two valve seat, in be correspondingly provided in the valve chamber two pieces of valve plates with
And two groups of wedge structures, the inclined-plane of wedge structure described in every group is opposite with the corresponding valve seat to form a wedge shape sky to enclose to set
Between, it is equipped in the non-tight plate face of two valve plates and the sliding block of the corresponding wedge structure inclined-plane cooperation；Two valves
Plate connect to all have valve opening state and close valve state with the executing agency, under the close valve state, the valve plate with
The corresponding valve seat is bonded and the sliding block is abutted with the corresponding wedge structure inclined-plane, described under the valve opening state
Valve plate is separated with the corresponding valve seat.
As one of embodiment, every piece of valve plate is connect by a kinematic link with the executing agency, two biographies
Dynamic connecting rod is hinged with the output end of the executing agency and articulated shaft is axially perpendicular to the linear drives side of the executing agency
To and the valve seat valve port it is axial.
As one of embodiment, the kinematic link includes and axis affixed with the valve plate and executing agency's straight line
The parallel construction section of driving direction, the construction section include first body of rod, second body of rod, pass female connector cylinder and be contained in it is described biography connect
Holddown spring in sleeve, first body of rod be arranged on the biography female connector cylinder with second body of rod and respectively with it is described
The both ends of holddown spring abut.
As one of embodiment, it is equipped on first body of rod and second body of rod and abuts boss, each abutting
Boss is located in the corresponding biography female connector cylinder and diameter is greater than the corresponding body of rod and wears bore dia.
As one of embodiment, the kinematic link further includes passing to connect section, and the biography connects section one end and the executing agency
Output end is hinged and the other end is connected with the corresponding construction section oblique.
As one of embodiment, two kinematic links are connected as one by a synchronising (connecting) rod.
As one of embodiment, the axis of the synchronising (connecting) rod is parallel with the valve port axis of the valve seat.
As one of embodiment, the wedge structure includes two voussoirs, and two voussoirs are respectively in the corresponding valve
The valve port axis two sides of seat, it is two that the sliding block on each valve plate, which is correspondingly arranged, under the close valve state, Mei Yisuo
Two sliding blocks stated on valve plate are abutted with corresponding two voussoirs respectively.
As one of embodiment, the executing agency includes the vavle shelf being fixedly installed on the valve body, movably pacifies
Loaded on the valve rod being connect on the vavle shelf and with two valve plates and for driving the valve rod to hold along what itself was axially moved
Row driving unit.
As one of embodiment, the valve rod is equipped with limited block, and closes valve limiting block in being respectively equipped on the vavle shelf
Plate and valve opening postive stop baffle.
The embodiment of the present invention at least has the following beneficial effects:
Two way seal gate valve provided by the invention with double valve plates, it is close with two valve seats of valve body respectively by two pieces of valve plates
Two way seal is realized in cover fitting, and sealing is more reliable, and sealing effect is preferable.Compared to the gate valve of traditional wedge-like engagement structure,
Two pieces of valve plates are compressed respectively using two groups of wedge structures, guarantee that two valve plates are independently sealed fitting, are guaranteed double
To sealing effect and functional reliability.Based on above-mentioned two way seal, it is assumed that wherein side is high-pressure side, the other side is low pressure
Side, even if high-pressure side pressure medium is more than to grant the sealing pressing force of corresponding side valve plate and opened the side valve plate, high-pressure medium
Into in valve chamber, the indoor pressure medium of valve can act on the back side of two side valve plates, and low pressure side valve plate is on the one hand made to bear medium
Pressure and the effect in the same direction for sealing pressing force, greatly enhance the sealing effect of the side, on the other hand, offset the valve of high pressure side valve plate
Outer pressure medium, finally under the action of sealing pressing force, which compresses sealing surface of seat again, realizes two way seal.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram when two way seal gate valve provided in an embodiment of the present invention with double valve plates is opened；
Fig. 2 is the structural schematic diagram when two way seal gate valve provided in an embodiment of the present invention with double valve plates is closed；
Fig. 3 be Fig. 1 in A to structural schematic diagram；
Fig. 4 is the cross-sectional view in Fig. 1 along B-B.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Such as Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of two way seal gate valve with double valve plates 2, including valve body 1, described
Valve body 1, which has, valve chamber and is connected with executing agency, is oppositely arranged that there are two valve seats 11 on the valve body 1, in right in the valve chamber
Two pieces of valve plates 2 and two groups of wedge structures should be equipped with, the inclined-plane of wedge structure described in every group is opposite with the corresponding valve seat 11
It sets to form a wedge shape space to enclose, be equipped in the non-tight plate face of two valve plates 2 oblique with the corresponding wedge structure
The sliding block 21 of face cooperation；Two valve plates 2 connect to all have valve opening state and close valve state with the executing agency, institute
It states under close valve state, the valve plate 2 and the fitting of the corresponding valve seat 11 and the sliding block 21 and the corresponding wedge structure
Inclined-plane abuts, and under the valve opening state, the valve plate 2 is separated with the corresponding valve seat 11.
It is easy-to-understand to, under above-mentioned close valve state, two valve plates 2 are bonded with two valve seats 11, and gate valve is in close state；It is above-mentioned
Under valve opening state, two valve plates 2 are separated with two valve seats 11, and gate valve is in the open state.Two valve seats 11 for being bonded with valve plate 2
Position on be equipped with sealing surface, correspondence is respectively equipped with sealing surface on two valve plates 2, two valve plates 2 respectively with two valve seats 11
Sealing surface fitting when, realize two way seal.
The sliding block 21 that above-mentioned valve plate 2 is assembled with it constitutes a wedge, mutually fits with corresponding valve seat 11 and wedge structure
Match, is inserted into corresponding wedge shape space.By taking above-mentioned valve body 1 is horizontally mounted as an example, the valve port axis and water of two valve seats 11
It puts down to parallel, 11 sealing surface of valve seat is parallel to vertically, and 2 sealing surfaces of valve plate/plate face is equally parallel to vertically；Above-mentioned wedge structure
Inclined-plane is preferably to move closer to corresponding valve seat 11 from top to bottom, and the inclined-plane of sliding block 21 is correspondingly arranged.In valve plate 2 and valve seat 11
When sealing surface is bonded, sliding block 21 and wedge structure inclined-plane cooperate, and wedge structure can provide a level side to sliding block 21 and valve plate 2
To pressing force so that valve plate 2 is fitted closely with valve seat 11.
Two way seal gate valve provided in this embodiment with double valve plates 2 passes through two pieces of valve plates 2, two with valve body 1 respectively
Two way seal is realized in the fitting of 11 sealing surface of valve seat, and sealing is more reliable, and sealing effect is preferable.Compared to traditional wedge-like engagement knot
The gate valve of structure in the present embodiment, respectively compresses two pieces of valve plates 2 using two groups of wedge structures, guarantees that two valve plates 2 are only respectively
It is vertical to be sealed fitting, guarantee two way seal effect and functional reliability.
Based on above-mentioned two way seal, it is assumed that wherein side is high-pressure side, the other side is low-pressure side, even if high-pressure side medium
Pressure is more than to grant the sealing pressing force of corresponding side valve plate 2 and opened the side valve plate 2, and high-pressure medium enters in valve chamber, valve chamber
Interior pressure medium can act on the back side of two side valve plates 2, and low pressure side valve plate 2 is on the one hand made to bear pressure medium and sealing compression
The effect in the same direction of power greatly enhances the sealing effect of the side, on the other hand, offsets the outer pressure medium of valve of high pressure side valve plate 2, most
Eventually under the action of sealing pressing force, which compresses 11 sealing surface of valve seat again, realizes two way seal.
Connect above-mentioned two way seal gate valve, such as Fig. 1 and Fig. 2, every piece of valve plate 2 by a kinematic link 3 with it is described
Executing agency's connection, two kinematic links 3 are hinged with the output end of the executing agency and articulated shaft is axially perpendicular to institute
The valve port in the linear drives direction and the valve seat 11 of stating executing agency is axial.Due to kinematic link 3 and executing agency's output end
Hingedly, it can make two valve plates 2 that can adaptively swing to a certain extent when docking with valve seat 11, with compensation processing, rigging error, protect
Demonstrate,proving two valve plates 2 can be with 11 sealing surface centering compactness of valve seat.
As further preferably embodiment, such as Fig. 1 and Fig. 2, two kinematic links 3 are connected by a synchronising (connecting) rod 5
It is connected in one, it is ensured that the synchronism and stress concertedness of two valve plates 2 movement, for example, the pressure that high pressure side valve plate 2 is subject to can
It is transferred on the valve plate 2 of low-pressure side, so that the force direction that two valve plates 2 are born is opposite, cancels out each other, reaches to a certain extent
Self-locking state.It is further preferred that the axis of the synchronising (connecting) rod 5 is parallel with the valve port axis of the valve seat 11, the synchronization
Connecting rod 5 and two kinematic links 3 are spliced into the connecting rod of a trident, further improve two valve plates 2 movement synchronism and by
Power concertedness.
Above-mentioned executing agency is generally used for linear reciprocation driving, and two above-mentioned kinematic links 3 are preferably held relative to this
The output end axisymmetrical of row mechanism is arranged, guarantees two 2 synchronization actions of valve plate.In the embodiment that above-mentioned valve body 1 is horizontally mounted
In, above-mentioned executing agency is installed on the top of valve body 1, output end axis with it is vertical parallel, be apparent from ground, kinematic link 3 and execution machine
Articulated shaft between structure output end is axially horizontal direction.
Connect above-mentioned two way seal gate valve, such as Fig. 1 and Fig. 2, the kinematic link 3 include it is affixed with the valve plate 2 and
The axis construction section 31 parallel with executing agency's linear drives direction, the construction section 31 include first body of rod 311, second
The body of rod 312, the holddown spring 314 for passing female connector cylinder 313 and being contained in the biography female connector cylinder 313, first body of rod 311 and institute
Second body of rod 312 is stated to be arranged on the biography female connector cylinder 313 and abut with the both ends of the holddown spring 314 respectively.It can be with
Understand ground, the both ends of above-mentioned biography female connector cylinder 313 offer the perforating worn for first body of rod 311 and second body of rod 312 respectively；
Preferably, it such as Fig. 1 and Fig. 2, is equipped on first body of rod 311 and second body of rod 312 and abuts boss, each abutting
Boss is located in the corresponding biography female connector cylinder 313 and diameter is greater than the corresponding body of rod and wears bore dia, then two abuttings are convex
Platform is all limited in the barrel chamber for passing female connector cylinder 313, can be to avoid first body of rod 311 and second body of rod 312 from passing female connector cylinder 313
In detach, guarantee the reliability of work and the stability of structure.Further setting abuts the diameter of boss and passes female connector cylinder
313 internal diameter is identical, abuts boss and is slidedly arranged on and passes in female connector cylinder 313, it is ensured that first body of rod 311 and second body of rod 312 with
The stability for passing relative motion between female connector cylinder 313 avoids the body of rod from shaking and influences the centering of valve plate 2 Yu valve seat 11.In addition
Embodiment in, in above-mentioned first body of rod 311 and second body of rod 312, can having a body of rod with female connector cylinder 313 is passed, to be connected be whole
Body.
Enough sealing pressures are capable of providing due to being provided with holddown spring 314 based on the structure of above-mentioned kinematic link 3
Clamp force guarantees sealing effect；It can effectively avoid because of two side valve plates, 2 sliding block 21 caused by manufacturing, assembling equal error and wedge shape knot
Structure contact is asynchronous, and then the sealing pressing force for causing two side valve plates 2 to generate is unequal or even institute is not achieved in a certain side valve plate 2
The case where pressing force need to be sealed appearance；It can compensate for sealing surface, abrasion of hinge point etc., equipment is reliable, long service life.
Further, such as Fig. 1 and Fig. 2, the kinematic link 3 further includes passing to connect section, and the biography connects section one end and holds with described
Row mechanism output end is hinged and the other end is connected with corresponding 31 oblique of construction section, guarantees the driving to 31 body of rod of construction section
Compress effect.
Preferably, above-mentioned biography can be set and connect section and construction section 31 hingedly, alternatively, above-mentioned first body of rod
311 include cutting with scissors positioned at the outer bar portion passed outside female connector cylinder 313 and positioned at the piston portion passed in female connector cylinder 313, outer bar portion and piston portion
It connects and connects section with biography and be connected.It can be further while guaranteeing to 2 transmission effect of valve plate and compressing effect based on above structure
Ground compensation guarantees functional reliability and sealing effect because manufacturing, assembling equal error and compensating sealing surface, the abrasion of hinge point etc.
Fruit.
Above-mentioned two way seal gate valve is connected, such as Fig. 3 and Fig. 4, the wedge structure includes two voussoirs 12, two wedges
Block 12 is respectively in the valve port axis two sides of the corresponding valve seat 11, and the sliding block 21 on each valve plate 2 is correspondingly arranged
It is two, under the close valve state, two sliding blocks 21 on each valve plate 2 are supported with corresponding two voussoirs 12 respectively
It connects.Above structure both can guarantee the compression effect to valve plate 2, meanwhile, two voussoirs 12 are arranged in a staggered manner, and do not influence fluid when valve opening
Circulation.
Above-mentioned executing agency can be using the manual actuator of this field routine or automatic executing agency etc..This implementation
In example, preferably, such as Fig. 1-Fig. 2, the executing agency includes the vavle shelf 42 being fixedly installed on the valve body 1, movable
Ground is installed on the valve rod 43 connecting on the vavle shelf 42 and with the transmission mechanism and for driving the valve rod 43 along itself
The execution driving unit 41 of axial movement.The execution driving unit 41 can drive using hydraulic cylinder, cylinder, electric pushrod etc. are automatic
Dynamic equipment, can also be used the driving structures such as motor+screw body；In the present embodiment, which includes hydraulic cylinder,
The hydraulic cylinder is installed on the vavle shelf 42 and output shaft and the valve rod 43 are coaxially connected.Further, such as Fig. 1 and Fig. 2,
The valve rod 43 is equipped with limited block 44, and closes valve postive stop baffle 46 and valve opening postive stop baffle in being respectively equipped on the vavle shelf 42
45, it can avoid execution driving unit 41 and cross movement and damage the equipment such as connecting rod, valve body 1, holddown spring 314.
The course of work of the above-mentioned two way seal gate valve with double valve plates 2 approximately as:
When closing valve, executing agency drives two side valve plates 2 to move downward by connecting rod, until the wedge shape at 2 back side of valve plate
Sliding block 21 is bonded completely with the voussoir 12 of wedge structure, and 2 sealing surface of valve plate is bonded with 11 sealing surface of valve seat also centering at this time.Work as valve
Bar 43 further moves down, compresses holddown spring 314, and then be pressed downward valve plate 2, is matched by sliding block 21 and the inclined-plane of voussoir 12
It closes, generates the pressing force of vertical 2 sealing surface of valve plate, reach sealing effect.When Open valve, valve rod 43 is moved upwards, and compresses bullet
Spring 314 gradually unclamps, and removal seals pressing force, continues to lift up valve plate 2, fully opens valve.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of two way seal gate valve with double valve plates, including valve body, the valve body has valve chamber and is connected with executing agency,
It is characterized in that: being oppositely arranged on the valve body there are two valve seat, in being correspondingly provided with two pieces of valve plates and two groups of wedges in the valve chamber
Shape structure, the inclined-plane of wedge structure described in every group is opposite with the corresponding valve seat to enclose to set to form a wedge shape space, two institutes
It states and is equipped in the non-tight plate face of valve plate and the sliding block of the corresponding wedge structure inclined-plane cooperation；Two valve plates are and institute
Executing agency's connection is stated to all have valve opening state and close valve state, under the close valve state, the valve plate and corresponding institute
State valve seat fitting and the sliding block and corresponding wedge structure inclined-plane abutting, under the valve opening state, the valve plate with it is right
The valve seat separation answered.
2. the two way seal gate valve with double valve plates as described in claim 1, it is characterised in that: every piece of valve plate is passed by one
Dynamic connecting rod is connect with the executing agency, two kinematic links with the output end of the executing agency hingedly and articulated shaft axis
Valve port to linear drives direction and the valve seat perpendicular to the executing agency is axial.
3. the two way seal gate valve with double valve plates as claimed in claim 2, it is characterised in that: the kinematic link includes and institute
The construction section that valve plate is affixed and axis is parallel with executing agency's linear drives direction is stated, the construction section includes the first bar
Body, second body of rod, the holddown spring for passing female connector cylinder and being contained in the biography female connector cylinder, first body of rod and second bar
Body is arranged on the biography female connector cylinder and abuts respectively with the both ends of the holddown spring.
4. the two way seal gate valve with double valve plates as claimed in claim 3, it is characterised in that: first body of rod and described the
It is equipped with abutting boss on bipole body, each abutting boss is located in the corresponding biography female connector cylinder and diameter is greater than pair
The body of rod answered wears bore dia.
5. the two way seal gate valve with double valve plates as claimed in claim 3, it is characterised in that: the kinematic link further includes passing
Connect section, the biography connects section one end with executing agency's output end hingedly and the other end and the corresponding construction section Oblique Multiple
It connects.
6. the two way seal gate valve the invention according to any one of claims 2 to 5 with double valve plates, it is characterised in that: two biographies
Dynamic connecting rod is connected as one by a synchronising (connecting) rod.
7. the two way seal gate valve with double valve plates as claimed in claim 6, it is characterised in that: the axis of the synchronising (connecting) rod with
The valve port axis of the valve seat is parallel.
8. the two way seal gate valve with double valve plates as described in claim 1, it is characterised in that: the wedge structure includes two
Voussoir, two voussoirs are respectively in the valve port axis two sides of the corresponding valve seat, the sliding block pair on each valve plate
It should be set as two, under the close valve state, two sliding blocks on each valve plate are supported with corresponding two voussoirs respectively
It connects.
9. the two way seal gate valve with double valve plates as described in claim 1, it is characterised in that: the executing agency includes fixing
The vavle shelf that is installed on the valve body, the valve rod for being movably installed on the vavle shelf and being connect with two valve plates and use
In the driving valve rod along the execution driving unit itself being axially moved.
10. the two way seal gate valve with double valve plates as claimed in claim 9, it is characterised in that: the valve rod is equipped with limit
Block, and valve postive stop baffle and valve opening postive stop baffle are closed in being respectively equipped on the vavle shelf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203143.7A CN109114241B (en) | 2018-10-16 | 2018-10-16 | Two-way sealing gate valve with double valve plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203143.7A CN109114241B (en) | 2018-10-16 | 2018-10-16 | Two-way sealing gate valve with double valve plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114241A true CN109114241A (en) | 2019-01-01 |
| CN109114241B CN109114241B (en) | 2024-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203143.7A Active CN109114241B (en) | 2018-10-16 | 2018-10-16 | Two-way sealing gate valve with double valve plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114241B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173951A (en) * | 2020-02-04 | 2020-05-19 | 宁波文泽机电技术开发有限公司 | Gate valve |
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| GB191117885A (en) * | 1911-08-05 | 1912-03-21 | Carl Georg Kleinschmidt | Improvements in Sliding Stop Valves. |
| FR2315648A1 (en) * | 1975-06-23 | 1977-01-21 | Bouvier Ateliers | Flow blocking valve for aggressive fluids - has valve closure element actuated by toggle levers for hermetic closing |
| US4566671A (en) * | 1983-11-14 | 1986-01-28 | John Beson | Gate valve having a secondary seal |
| CN201262243Y (en) * | 2008-08-14 | 2009-06-24 | 闵和清 | Telescopic lower wedge hydraulic sluice valve |
| CN201363433Y (en) * | 2009-01-21 | 2009-12-16 | 河南开封高压阀门有限公司 | Reverse-wedge expansion double disc parallel gate valve |
| JP2013204681A (en) * | 2012-03-28 | 2013-10-07 | Toho Gas Co Ltd | Gate valve |
| CN102678955A (en) * | 2012-05-17 | 2012-09-19 | 东莞宏威数码机械有限公司 | Dual-baffle vacuum gate valve device |
| CN106481833A (en) * | 2015-08-25 | 2017-03-08 | 中国石油天然气集团公司 | A kind of high temperature cut-off valve hard sealing structure |
| CN207393992U (en) * | 2017-11-10 | 2018-05-22 | 四川赛尔阀门制造有限公司 | A kind of recovery type double disc expansion sluice valve |
| CN207848462U (en) * | 2017-12-29 | 2018-09-11 | 浙江挺宇流体设备股份有限公司 | A kind of novel medium voltage parallel double-flashboard gate valve |
| CN208935432U (en) * | 2018-10-16 | 2019-06-04 | 中冶南方工程技术有限公司 | Two way seal gate valve with double valve plates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173951A (en) * | 2020-02-04 | 2020-05-19 | 宁波文泽机电技术开发有限公司 | Gate valve |
| CN111173951B (en) * | 2020-02-04 | 2021-07-20 | 浙江中昊阀门有限公司 | Gate valve |
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| CN109114241B (en) | 2024-03-22 |
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