CN108916408A - A kind of gate valve - Google Patents
A kind of gate valve Download PDFInfo
- Publication number
- CN108916408A CN108916408A CN201810776211.2A CN201810776211A CN108916408A CN 108916408 A CN108916408 A CN 108916408A CN 201810776211 A CN201810776211 A CN 201810776211A CN 108916408 A CN108916408 A CN 108916408A
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- valve
- valve plate
- chamber
- groove
- plate
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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
- 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
- F16K3/16—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 special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—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 special arrangements for separating the sealing faces or for pressing them together by movement of the closure 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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- 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
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Abstract
The present invention provides a kind of gate valves, including：Valve body, the first valve plate, the second valve plate and bias piece, valve body is equipped with valve chamber, and is respectively communicated with flow channel and flow pass in valve chamber two sides；First valve plate is set in valve chamber, and can be moved back and forth in valve chamber under the effect of external force, and the first valve plate is equipped with groove；Second valve plate is set in valve chamber, and is equipped with convex block, and convex block is placed in groove and can reciprocatingly slide in a groove；Bias piece one end is abutted against with the second valve plate, and the other end is abutted against with the first valve plate, and is applied to the biasing force that the first valve plate one moves the first valve plate to the bottom of chamber direction of valve chamber relative to the second valve plate.To solve the problem of that gate valve is easy the medium that cannot be truncated when laterally disposed in valve chamber by buoyancy effect or by gate valve in the prior art.
Description
Technical field
The present invention relates to gate valve technical fields, and in particular to a kind of gate valve.
Background technique
Gate valve is mainly used for the medium being truncated in pipeline, and medium can be gas or liquid.
It is disclosed in patent document CN201763982U in a kind of pair of resistance and leads to parallel expanding double-flashboard gate valve, this gate valve
Including mainly main gate-board, auxiliary gate-board and convex block, when needing that medium is truncated, rotates handwheel, handwheel band ovable valve stem moves downward, by
It is fixedly connected in main gate-board with handwheel, therefore main gate-board is moved with the movement of valve rod, convex block is arranged in main gate-board and pair
In groove between flashboard, therefore it will drive convex block movement when main gate-board moves downward, convex block will drive to be engaged by clamping therewith
Auxiliary gate-board move downward, when the bottom of auxiliary gate-board and valve seat contact, auxiliary gate-board stop motion, due to convex block and main gate-board
There is gap between groove, continue to rotate handwheel, valve rod, which will drive main gate-board, to be continued to move downward, due to main gate-board and auxiliary gate-board
Contact surface be inclined-plane, main gate-board, which continues to move downward, will make to generate reaction force therebetween so that main gate-board with
The thickness summation of both auxiliary gate-boards (combination of main gate-board and auxiliary gate-board is referred to as flashboard below) becomes larger, and both final meeting is complete
Close to valve seat, so that the complete rank of medium be broken.
There are the following problems for this scheme：Since auxiliary gate-board is to fully rely on self gravity to be fixed together simultaneously with main gate-board
With main gate-board move up and down, when the medium in valve seat is liquid, liquid can to auxiliary gate-board generate buoyancy, at this time auxiliary gate-board and
Displacement will be generated between main gate-board, the thickness for eventually resulting in flashboard becomes larger.Width due to placing flashboard in valve chamber is one
Fixed, therefore when the thickness of flashboard becomes larger, flashboard just cannot continue to move downward, and Jie cannot be truncated by eventually resulting in gate valve
Matter, and when this gate valve is laterally disposed, it also will appear this problem.
Summary of the invention
The main purpose of the present invention is to provide a kind of gate valves, are easy with solving gate valve in the prior art by buoyancy shadow
The problem of ringing or gate valve cannot be truncated to the medium in valve chamber when laterally disposed.
To achieve the above object, the present invention provides a kind of gate valves, including：Valve body, the first valve plate, the second valve plate and bias
Part, valve body is equipped with valve chamber, and is respectively communicated with flow channel and flow pass in valve chamber two sides；First valve plate is set in valve chamber,
And can be moved back and forth in valve chamber under the effect of external force, the first valve plate is equipped with groove or convex block；Second valve plate is set to valve chamber
In, and it is equipped with convex block or groove, convex block is placed in groove and can reciprocatingly slide in a groove；Second valve plate and the first valve plate
Opposite face is cooperated by inclined-plane；Second valve plate and the first valve plate have the first position for being connected to flow channel with flow pass,
And make flow channel and the disconnected second position of flow pass；Bias piece one end is abutted against with the second valve plate, the other end and
One valve plate abuts against, and being applied to the second valve plate one moves the second valve plate to the bottom of chamber direction of valve chamber relative to the first valve plate
Biasing force.
Further, groove is set on the first valve plate, and convex block is set on the second valve plate；First valve plate is equipped with accommodating cavity,
Bias piece is set in accommodating cavity.
Further, the side of the bottom of chamber of bias piece one end and convex block far from valve chamber offsets, and the other end is remote with the first valve plate
One end of bottom of chamber from valve chamber offsets.
Further, groove includes limiting slot, and the sliding groove being connected to limiting slot far from the bottom of chamber side of valve chamber, sliding
The groove width of slot is greater than the groove width of limiting slot；The width of convex block and the groove width of limiting slot match.
Further, sliding groove is connected between accommodating cavity and limiting slot, and with accommodating cavity.
Further, the phase back side of the first valve plate and the second valve plate can be in the in the first valve plate and the second valve plate respectively
When two positions, offset with the sealing of the corresponding end of flow channel or flow pass.
Further, gate valve further includes position limiting structure, is set between the second valve plate and valve chamber bottom wall, is formed with valve chamber cavity wall
Continue the bit space that allows moved to valve chamber bottom in the second valve plate stop motion for the first valve plate.
Further, position limiting structure is the block on valve chamber bottom wall.
Further, gate valve further includes：Placed cavity and valve rod, placed cavity is located above valve chamber, and is connected to valve chamber；Valve rod
In placed cavity, one end is fixedly connected with the first valve plate, and the other end connect with driving device and can be in the driving of driving device
The first valve plate of lower drive moves back and forth.
Further, bias piece is elastic element.
Technical solution of the present invention has the following advantages that：
1, gate valve provided by the invention, including：Valve body, the first valve plate, the second valve plate and bias piece, valve body are equipped with valve chamber,
And it is respectively communicated with flow channel and flow pass in valve chamber two sides；First valve plate is set in valve chamber, and can be in the effect of external force
Under moved back and forth in valve chamber, the first valve plate be equipped with groove；Second valve plate is set in valve chamber, and is equipped with convex block, convex block accommodating
It can reciprocatingly slide in groove and in a groove；The opposite face of second valve plate and the first valve plate is cooperated by inclined-plane；Second valve plate
There is the first position for being connected to flow channel with flow pass with the first valve plate, and be connected to flow channel not with flow pass
The second position；Bias piece one end is abutted against with the second valve plate, and the other end is abutted against with the first valve plate, and is applied to the second valve plate
One biasing force for moving the second valve plate to the bottom of chamber direction of valve chamber relative to the first valve plate.By the way that convex block is connected to groove
In, when being in first position, there is no relative displacement, the thickness of the first valve plate and the second valve plate between the first valve plate and the second valve plate
Summation is minimum, and the medium in valve chamber cannot be truncated at this time；When the second valve plate stop motion, the first valve plate continues to move downward,
Until the first valve plate cannot continue to move, it is now in the second position, since the opposite face of the second valve plate and the first valve plate passes through
Inclined-plane cooperation, therefore be in the second position when the first valve plate and the second valve plate (being referred to as valve board assembly) thickness summation most
It greatly, in this way can be so that two back of the first valve plate and the second valve plate be closely pasted with the seal receptacle being welded on inside valve chamber
It closes, and is truncated the medium in valve chamber completely.Since the second valve plate is connected on the second valve plate simply by self gravity,
It can be made to generate relative displacement between the first valve plate and the second valve plate by buoyancy effect, the thickness for eventually resulting in valve board assembly is total
With become larger, the valve board assembly to thicken cannot continue to move to valve chamber bottom, and then cannot medium in completely cut off valve chamber.Cause
This, is provided with bias piece again in the application, one end of bias piece is abutted against with the first valve plate, and the other end offsets with the second valve plate
It connects, setting is so that the power that the second valve plate is moved by one to valve chamber bottom always in this way, when vertical or laterally disposed this lock
When valve, the second valve plate all will not generate relative displacement by buoyancy effect and with the first valve plate, it is ensured that valve when in first position
Board group part can move in valve chamber always, finally ensure the medium that valve board assembly can be truncated in valve chamber.
2, gate valve provided by the invention, groove include limiting slot, and be connected to limiting slot far from the bottom of chamber side of valve chamber
Sliding groove, the groove width of sliding groove are greater than the groove width of limiting slot；The width of convex block and the groove width of limiting slot match.In second
When setting, the first valve plate generates relative displacement relative to the second valve plate, and convex block slides in sliding groove at this time, and the groove width of sliding groove is big
Match convenient for convex block sliding, the width of convex block and the groove width of limiting slot so that convex block limit is in limiting slot in the groove width of limiting slot
In, when gate valve is placed vertically, avoid the second valve plate from generating the displacement of left and right directions relative to the first valve plate, so that convex block can only
Along plane motion where inclined-plane.
3, gate valve provided by the invention further includes：Placed cavity and valve rod, placed cavity are located above valve chamber, and connect with valve chamber
It is logical；Valve rod is set in placed cavity, and one end is fixedly connected with the first valve plate, and the other end connect with driving device and can be in driving device
Driving under drive the first valve plate move back and forth.Driving device is handwheel, rotates clockwise handwheel, and handwheel driving stem moves,
Valve rod drives the first valve plate move to close to the direction of valve chamber bottom, due between the second valve plate and the second valve plate by convex block and
Groove links together, so the second valve plate moves together with the first valve plate, gate valve is in first position at this time；When the second valve plate
When contacting with block, continue rotation hand wheel, the first valve plate continues to move downward under the action of valve rod, the thickness of valve board assembly by
Cumulative big, until the first valve plate and the second valve plate are fitted closely with the seal receptacle in valve chamber respectively, gate valve, which is in, at this time closes shape
State is in the second position；Handwheel is rotated counterclockwise, the first valve plate is moved with valve rod to the direction far from valve chamber bottom,
Under the collective effect of the axial force of the elastic reset power and valve rod of bias piece, the thickness of valve board assembly is gradually thinning, with rearward recess
With bump contact, and groove drives convex block move to far from the direction of valve chamber bottom, i.e. the first valve plate the second valve plate of drive to
Direction far from valve chamber bottom moves, and gate valve is in the open state at this time, that is, is in first position.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.In the accompanying drawings：
Fig. 1 shows the overall structure diagram of the gate valve of the embodiment of the present invention 1；
Fig. 2 shows the partial structural diagrams of the first valve plate of the gate valve of Fig. 1；
Fig. 3 shows another angled arrangement schematic diagram of the first valve plate of Fig. 2；
Fig. 4 shows the structural schematic diagram of the second valve plate of the gate valve of Fig. 1；
Fig. 5 shows another angled arrangement schematic diagram of the second valve plate of Fig. 4.
Wherein, the appended drawing reference in above-mentioned attached drawing is：
1, valve chamber；2, placed cavity；10, the first valve plate；111, limiting slot；112, sliding groove；12, bias piece；20, the second valve
Plate；21, convex block；30, position limiting structure；40, valve rod.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of gate valve as shown in Figure 1, including：Valve body, the first valve plate 10, the second valve plate 20 and bias piece 12, valve body is set
There is valve chamber 1, and is respectively communicated in the flow channel and flow pass of 1 two sides of valve chamber；First valve plate 10 is set in valve chamber 1, and can
It is moved back and forth in valve chamber 1 under the effect of external force, the first valve plate 10 is equipped with groove；Second valve plate 20 is set in valve chamber 1, and
Equipped with convex block 21, convex block 21 is placed in groove and can reciprocatingly slide in a groove；The phase of second valve plate 20 and the first valve plate 10
Opposite is cooperated by inclined-plane；Second valve plate 20 has first for being connected to flow channel with flow pass with the first valve plate 10
It sets, and makes flow channel and the disconnected second position of flow pass；12 one end of bias piece is abutted against with the second valve plate 20, another
End is abutted against with the first valve plate 10, and being applied to the second valve plate 20 1 makes the second valve plate 20 relative to the first valve plate 10 to valve chamber
The biasing force of 1 bottom of chamber direction movement.
Convex block 21 on second valve plate 20 is connected in the groove of the second valve plate 20, when being in first position, the first valve plate
10 and second do not have relative displacement between valve plate 20, and the thickness summation of the first valve plate 10 and the second valve plate 20 is minimum, at this time valve chamber 1
Interior medium cannot be truncated；When 20 stop motion of the second valve plate, the first valve plate 10 continues to move downward, until the first valve plate 10
It cannot continue to move, be now in the second position, since the opposite face of the second valve plate 20 and the first valve plate 10 is cooperated by inclined-plane
, thus the first valve plate 10 when being in the second position and the second valve plate 20 be referred to as valve board assembly thickness summation it is maximum, this
Sample can be so that two back of the first valve plate 10 and the second valve plate 20 be closely pasted with the seal receptacle being welded on inside valve chamber 1
It closes, and is truncated the medium in valve chamber 1 completely.Since the second valve plate 20 is connected to the second valve plate 20 simply by self gravity
On, it can be made to generate relative displacement between the first valve plate 10 and the second valve plate 20 by buoyancy effect, eventually result in valve plate group
The thickness summation of part becomes larger, and the valve board assembly to thicken cannot continue to move to 1 bottom of valve chamber, and then cannot completely cut off valve chamber 1
Interior medium.Therefore, bias piece 12 is provided in the application again, one end of bias piece 12 is fixed on the first valve plate 10, another
End is abutted against with the second valve plate 20, is arranged in this way so that the power that the second valve plate 20 is moved by one to 1 bottom of valve chamber always, when
When vertical or laterally disposed this gate valve, the second valve plate 20 all will not be generated opposite position with the first valve plate 10 by buoyancy effect
It moves, it is ensured that valve board assembly when in first position can move in valve chamber 1 always, finally ensure that valve board assembly being capable of block valve
Medium in chamber 1.
As shown in Fig. 2, specifically, groove is set on the first valve plate 10, convex block 21 is set on the second valve plate 20；First valve plate
10 are equipped with accommodating cavity, and bias piece 12 is set in accommodating cavity.There is screw thread, bias piece 12 is threadedly secured to appearance in accommodating cavity
It sets in chamber.
As shown in Figure 1, specifically, convex block 21 is set on the second valve plate 20, groove is set on the first valve plate 10；Bias piece 12
The side of bottom of chamber of the one end with convex block 21 far from valve chamber 1 offsets, one end of the other end and the first bottom of chamber of the valve plate 10 far from valve chamber 1
It offsets.When in first position, the second valve plate 20 can be with the first valve plate 10 under the active force of self gravity and bias piece 12
It links together without generating relative displacement, so that the thickness of valve board assembly not will increase, finally guarantees valve board assembly
Medium of 1 bottom of valve chamber to be truncated in valve chamber 1 can be moved to.
As shown in Fig. 2, specifically, groove includes limiting slot 111, and connect with limiting slot 111 far from the bottom of chamber side of valve chamber 1
Logical sliding groove 112, the groove width of sliding groove 112 are greater than the groove width of limiting slot 111；The width of convex block 21 and the slot of limiting slot 111
Width matches.When in the second position, the first valve plate 10 generates relative displacement relative to the second valve plate 20, and convex block 21 is in cunning at this time
Slided in dynamic slot 112, the groove width of sliding groove 112 is greater than the groove width of limiting slot 111 and slides convenient for convex block 21, the width of convex block 21 and
The groove width of limiting slot 111 matches so that the limit of convex block 21, when gate valve is placed vertically, avoids the second valve in limiting slot 111
Plate 20 generates the displacement of left and right directions relative to the first valve plate 10, so that convex block 21 can only be along plane motion where inclined-plane.
Specifically, sliding groove 112 is connected between accommodating cavity and limiting slot 111, and with accommodating cavity.Convenient for part is inclined
Casting die 12 is placed in sliding groove 112.
As shown in Figure 3 and Figure 5, specifically, the phase back side of the first valve plate 10 and the second valve plate 20, difference can be in the first valve plate
10 and second valve plate 20 when being in the second position, it offsets with the sealing of the corresponding end of flow channel or flow pass.Inside valve chamber 1
It is welded with seal receptacle, when the first valve plate 10 and the second valve plate 20 and seal receptacle close contact, gate valve is in close state.
Specifically, gate valve further includes position limiting structure 30, is set between 1 bottom wall of the second valve plate 20 and valve chamber, with 1 cavity wall of valve chamber
Continue the bit space that allows moved to 1 bottom of valve chamber when being formed in the second 20 stop motion of valve plate for the first valve plate 10.When second
Just stop motion when valve plate 20 and position limiting structure 30 contact, the first valve plate 10, which continues movement, at this time will make the thickness of valve board assembly
Summation becomes larger, the final function of realizing the medium in truncation valve chamber 1.
Specifically, position limiting structure 30 is the block on 1 bottom wall of valve chamber.Certainly, position limiting structure 30 also can be set
On second valve plate 20, one block both was set in the one end of the second valve plate 20 contacted with valve chamber 1.
As shown in Figures 1 to 5, specifically, gate valve further includes：Placed cavity 2 and valve rod 40, placed cavity 2 are located on valve chamber 1
Side, and be connected to valve chamber 1；Valve rod 40 is set in placed cavity 2, and one end is fixedly connected with the first valve plate 10, and the other end and driving fill
It sets and connects and the first valve plate 10 can be driven to move back and forth under the drive of the drive.Driving device is handwheel, is rotated clockwise
Handwheel, handwheel driving stem 40 move, and valve rod 40 drives the first valve plate 10 to move to close to the direction of 1 bottom of valve chamber, due to the
Two valve plates 20 are linked together by convex block 21 and the groove on the second valve plate 20, so the second valve plate 20 and the first valve plate 10 1
Movement is played, gate valve is in first position at this time；When the second valve plate 20 is contacted with block, continue rotation hand wheel, the first valve plate 10
Continue to move downward under the action of valve rod 40, the thickness of valve board assembly is gradually increased, until the first valve plate 10 and the second valve plate
20 fit closely with the seal receptacle in valve chamber 1 respectively, and gate valve is in close state at this time, that is, are in the second position；Turn counterclockwise
Start to take turns, the first valve plate 10 move with valve rod 40 to far from the direction of 1 bottom of valve chamber, bias piece 12 elastic reset power with
Under the collective effect of the axial force of valve rod 40, the thickness of valve board assembly is gradually thinning, contacts with rearward recess with convex block 21, and recessed
Slot drives convex block 21 to move to the direction far from 1 bottom of valve chamber, i.e. the first valve plate 10 drives the second valve plate 20 to far from 1 bottom of valve chamber
The direction in portion moves, and gate valve is in the open state at this time, that is, is in first position.
The concrete form of bias piece is unrestricted, and in the present embodiment, bias piece 12 is spring.Have on accommodating cavity wall
Screw thread, spring are threadedly secured in accommodating cavity.
Specifically, gate valve can be equipped with electronic, pneumatic, driving device for gear box, be mainly used for the medium being truncated in pipeline,
Medium can be gas, liquid.
Embodiment 2
The present embodiment provides a kind of gate valves, difference from example 1 is that, convex block 21 is set on the first valve plate, recessed
Slot is set on the second valve plate, and 12 one end of bias piece offsets with convex block 21 close to the side of the bottom of chamber of valve chamber 1, the other end and the second valve
Plate 20 offsets close to one end of the bottom of chamber of valve chamber 1.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of gate valve, which is characterized in that including：
Valve body is equipped with valve chamber (1), and is respectively communicated in the flow channel and flow pass of the valve chamber (1) two sides；
First valve plate (10) is set in the valve chamber (1), and can be moved back and forth in the valve chamber (1) under the effect of external force,
First valve plate (10) is equipped with groove or convex block (21)；
Second valve plate (20) is set in the valve chamber (1), and is equipped with convex block (21) or groove, and the convex block (21) is placed in institute
It states in groove and can reciprocatingly slide in the groove；The opposite face of second valve plate (20) and first valve plate (10) is logical
Cross inclined-plane cooperation；Second valve plate (20) and first valve plate (10) have and make the flow channel and the flow pass
The first position of connection, and make the flow channel and the disconnected second position of the flow pass；
Bias piece (12), one end are abutted against with second valve plate (20), and the other end is abutted against with first valve plate (10), and
Being applied to second valve plate (20) one makes second valve plate (20) relative to first valve plate (10) to the valve chamber
(1) biasing force of bottom of chamber direction movement.
2. gate valve according to claim 1, which is characterized in that
The groove is set on first valve plate (10), and the convex block (21) is set on second valve plate (20)；
First valve plate (10) is equipped with accommodating cavity, and the bias piece (12) is set in the accommodating cavity.
3. gate valve according to claim 2, which is characterized in that described bias piece (12) one end and the convex block (21) are separate
The side of the bottom of chamber of the valve chamber (1) offsets, and the one of the bottom of chamber of the other end and first valve plate (10) far from the valve chamber (1)
End offsets.
4. gate valve according to claim 3, which is characterized in that
The groove includes limiting slot (111), and is connected to the limiting slot (111) far from the bottom of chamber side of the valve chamber (1)
Sliding groove (112), the groove width of the sliding groove (112) is greater than the groove width of the limiting slot (111)；
The groove width of the width and the limiting slot (111) of the convex block (21) matches.
5. gate valve according to claim 4, which is characterized in that the sliding groove (112) is located at the accommodating cavity and described
Between limiting slot (111), and it is connected to the accommodating cavity.
6. gate valve according to claim 1, which is characterized in that first valve plate (10) and second valve plate (20)
Phase back side, difference can be when first valve plate (10) and second valve plate (20) be in the second position, with the stream
The corresponding end sealing for entering channel or the flow pass offsets.
7. gate valve according to claim 1, which is characterized in that further include position limiting structure (30), be set to second valve plate
It (20), can when being formed in the second valve plate (20) stop motion with the valve chamber (1) cavity wall between the valve chamber (1) bottom wall
Continue the bit space that allows moved to the valve chamber (1) bottom for first valve plate (10).
8. gate valve according to claim 7, which is characterized in that the position limiting structure (30) is set on the valve chamber (1) bottom
Block on wall.
9. gate valve according to claim 1, which is characterized in that further include：
Placed cavity (2) is located above the valve chamber (1), and is connected to the valve chamber (1)；
Valve rod (40) is set in the placed cavity (2), and one end is fixedly connected with first valve plate (10), the other end and driving
Device connects and first valve plate (10) can be driven to move back and forth under the driving of the driving device.
10. gate valve according to claim 1 to 9, which is characterized in that the bias piece (12) is elastic element.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776211.2A CN108916408A (en) | 2018-07-16 | 2018-07-16 | A kind of gate valve |
| PCT/CN2018/123646 WO2020015318A1 (en) | 2018-07-16 | 2018-12-25 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776211.2A CN108916408A (en) | 2018-07-16 | 2018-07-16 | A kind of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108916408A true CN108916408A (en) | 2018-11-30 |
Family
ID=64410334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810776211.2A Pending CN108916408A (en) | 2018-07-16 | 2018-07-16 | A kind of gate valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108916408A (en) |
| WO (1) | WO2020015318A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015318A1 (en) * | 2018-07-16 | 2020-01-23 | 苏州纽威阀门股份有限公司 | Gate valve |
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| US3463447A (en) * | 1968-05-27 | 1969-08-26 | Grove Valve & Regulator Co | Valve structure with protected resilient seals |
| US4291862A (en) * | 1979-09-28 | 1981-09-29 | Acf Industries, Incorporated | Expanding gate valve |
| CN201763982U (en) * | 2010-07-07 | 2011-03-16 | 保一集团有限公司 | Double-resistance middle-way parallel expanding double gate disc valve |
| CN202381724U (en) * | 2011-12-07 | 2012-08-15 | 深圳大学 | Novel gate valve for sealing structure |
| CN102996837A (en) * | 2011-09-09 | 2013-03-27 | 株式会社蒂克斯Iks | Backseat assembly for expanding gate valve |
| CN103968093A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Propped open type parallel dual-gate valve with deflector hole |
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| US3993285A (en) * | 1975-08-18 | 1976-11-23 | Rockwell International Corporation | Double disc gate valve with entrapped stem connection |
| CN2833278Y (en) * | 2005-07-26 | 2006-11-01 | 兰州理工大学 | Disc connecting structure for embedded double disc gate valve |
| KR20080023211A (en) * | 2007-11-21 | 2008-03-12 | 박우균 | Gate valve structure of parallel slide |
| CN203836257U (en) * | 2014-05-04 | 2014-09-17 | 环球阀门集团有限公司 | High-temperature high-pressure wedge-type double disc gate valve |
| CN107061776A (en) * | 2017-04-25 | 2017-08-18 | 重庆科特工业阀门有限公司 | Force Double-sealing plate sluice valve |
| CN108916408A (en) * | 2018-07-16 | 2018-11-30 | 苏州纽威阀门股份有限公司 | A kind of gate valve |
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2018
- 2018-07-16 CN CN201810776211.2A patent/CN108916408A/en active Pending
- 2018-12-25 WO PCT/CN2018/123646 patent/WO2020015318A1/en active Application Filing
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| US3463447A (en) * | 1968-05-27 | 1969-08-26 | Grove Valve & Regulator Co | Valve structure with protected resilient seals |
| US4291862A (en) * | 1979-09-28 | 1981-09-29 | Acf Industries, Incorporated | Expanding gate valve |
| CN201763982U (en) * | 2010-07-07 | 2011-03-16 | 保一集团有限公司 | Double-resistance middle-way parallel expanding double gate disc valve |
| CN102996837A (en) * | 2011-09-09 | 2013-03-27 | 株式会社蒂克斯Iks | Backseat assembly for expanding gate valve |
| CN202381724U (en) * | 2011-12-07 | 2012-08-15 | 深圳大学 | Novel gate valve for sealing structure |
| CN103968093A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Propped open type parallel dual-gate valve with deflector hole |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015318A1 (en) * | 2018-07-16 | 2020-01-23 | 苏州纽威阀门股份有限公司 | Gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020015318A1 (en) | 2020-01-23 |
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Application publication date: 20181130 |