CN207935461U - A kind of gate valve - Google Patents
A kind of gate valve Download PDFInfo
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- CN207935461U CN207935461U CN201721893470.0U CN201721893470U CN207935461U CN 207935461 U CN207935461 U CN 207935461U CN 201721893470 U CN201721893470 U CN 201721893470U CN 207935461 U CN207935461 U CN 207935461U
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Abstract
The utility model discloses a kind of gate valve, which includes：Valve body, valve body have：Valve chamber, positioned at the valve plate seal chamber of valve chamber side and sealed set, valve plate seal chamber and valve chamber are isolated by bulkhead seal；The valve plate being connect through partition board and with bulkhead seal；It is connected with valve plate with the valve rod for driving valve plate to move；Wherein, valve rod is located at the outside of valve plate seal chamber, and there is pre-determined distance, valve rod to connect through partition board and with bulkhead seal between valve rod and valve plate；When opening gate valve, valve plate is moved from valve chamber to valve plate seal chamber.Gate valve disclosed by the utility model, the dust avoided in valve chamber leak out valve body, improve sealing reliability；Valve plate and valve rod individually seal, and maintenance does not influence mutually；Compact-sized simple, valve plate, valve rod will not block.
Description
Technical field
The utility model is related to technical field of valve manufacturing, more specifically to a kind of gate valve.
Background technology
Gate valve is a kind of more common valve, drives valve plate movement to be opened and closed to realize by valve rod, valve plate
It is tightly connected by sealing device and valve chamber.In valve plate motion process, there is friction between valve plate and sealing device, for a long time
After use, more fragile sealing device causes sealing reliability poor, and the dust relatively easily led in valve chamber leaks out outside valve body, shadow
Ring site environment.
In addition, when gate valve is closed, valve plate is located in valve chamber, and dust can be deposited on valve plate；When opening gate valve, valve plate
On dust be easier to move to outside valve chamber with valve plate, influence site environment.
In conclusion how to provide a kind of gate valve, valve body is leaked out to avoid the dust in valve chamber, improves sealed reliable
Property, it is a problem to be solved by those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of gate valve, leaks out valve body to avoid the dust in valve chamber, improves sealing
Reliability.
To achieve the goals above, the utility model provides the following technical solutions：
A kind of gate valve, including：
Valve body, the valve body have：Valve chamber, positioned at the valve plate seal chamber of the valve chamber side and sealed set, the valve
Plate seal chamber and the valve chamber are isolated by bulkhead seal；
Through the partition board and the valve plate that is connect with the bulkhead seal；
It is connected with the valve plate to drive the valve rod of the valve plate movement；
Wherein, the valve rod is located at the outside of the valve plate seal chamber, has between the valve rod and the valve plate default
Distance, the valve rod are connect through the partition board and with the bulkhead seal；When opening the gate valve, the valve plate is from institute
Valve chamber is stated to move to the valve plate seal chamber.
Preferably, the gate valve further includes being set in the valve chamber and for wiping the dust on the valve plate off
Dust blowing component.
Preferably, the dust blowing component is coated at the valve plate, and the valve plate by the dust blowing component with it is described every
Plate is tightly connected.
Preferably, the gate valve further includes the compressed gas for being set to the valve body and being connected to the valve plate seal chamber
Interface.
Preferably, the valve plate seal chamber is equipped with removably cover board.
Preferably, the gate valve further includes the support member for being set in the valve chamber and being used to support the valve plate.
Preferably, the support member is idler wheel.
Preferably, the valve rod is hinged with the valve plate so that axial energy of the valve plate with the valve rod along the valve rod
It is enough to generate relative movement.
Preferably, circular in cross-section of the valve rod through the rod segment of the partition board.
Preferably, the valve rod includes：Lead screw, the nut with wire rod thread cooperation, is fixedly connected with the nut
Connecting rod；Wherein, the lead screw is axially positioned on the valve body along it, and the nut and/or the connecting rod are along its circumferential direction
It is positioned at the valve body, there is the connecting rod cavity for accommodating the lead screw, the connecting rod to be connected with the valve plate.
Preferably, the gate valve further includes driving the valve rod so that the valve rod drives the driving of the valve plate movement
Device.
Gate valve provided by the utility model, by the way that the valve plate seal chamber with valve chamber seal isolation is arranged, when opening plate
When valve, valve plate is moved from valve chamber to valve plate seal chamber, in this way, when the sealed connection of valve plate and partition board is damaged, dust can be into
Enter valve plate seal chamber, since valve plate seal chamber is sealing, then the dust avoided in valve chamber leaks out valve body, and improving sealing can
By property.
Meanwhile in gate valve provided by the utility model, valve plate and valve rod individually seal, and maintenance does not influence mutually；Structure
Compact simple, valve plate, valve rod will not block.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the front view for the gate valve that the utility model embodiment provides；
Fig. 2 is the vertical view for the gate valve that the utility model embodiment provides；
Fig. 3 is the sectional view along A-A of Fig. 2；
Fig. 4 is the enlarged diagram of part B in Fig. 3.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figs 1-4, the gate valve that the utility model embodiment provides includes valve body 1, valve plate 2 and valve rod 5；Above-mentioned valve
Body 1 has：Valve chamber 11, and positioned at 11 side of valve chamber and the valve plate seal chamber 12 of sealed set；The valve plate seal chamber 12 and valve chamber
11 are isolated by bulkhead seal；Above-mentioned valve plate 2 runs through partition board, and valve plate 2 is connect with bulkhead seal.When opening gate valve, valve
Plate 2 is moved from valve chamber 11 to valve plate seal chamber 12.
The valve rod 5 of above-mentioned gate valve is connected with valve plate 2 to drive valve plate 2 to move.In order to further increase sealing performance, on
State the outside that valve rod 5 is located at valve plate seal chamber 12；There is pre-determined distance between valve rod 5 and valve plate 2；Valve rod 5 runs through partition board, and valve
Bar 5 is connect with bulkhead seal.
It for the pre-determined distance between valve rod 5 and valve plate 2, is designed according to actual needs, as long as can ensure valve rod 5
Positioned at the outside of valve plate seal chamber 12.Specifically, the distance between the axis of valve rod 5 and the axis of valve plate 2 L are more than valve rod
5 radius and the sum of the half of thickness of valve plate 2.
It is understood that valve chamber 11 has feed inlet, when closing gate valve, valve plate 2 closes feed inlet；It is inserted when opening
When plate valve, valve plate 2 opens feed inlet.
Above-mentioned valve rod 5 is connect with bulkhead seal, and specifically, above-mentioned valve rod 5 is tightly connected with partition board by sealing device 10.
It for the concrete structure of sealing device 10, is designed according to actual needs, the utility model embodiment does not limit this.
The gate valve that the utility model embodiment provides, by the way that the valve plate seal chamber 12 sealed off with valve chamber 11 is arranged,
When opening gate valve, valve plate 2 is moved from valve chamber 11 to valve plate seal chamber 12, in this way, when the sealed connection quilt of valve plate 2 and partition board
When damage, dust can enter valve plate seal chamber 12, since valve plate seal chamber 12 is sealing, then avoid the dust in valve chamber 11
Valve body 1 is leaked out, sealing reliability is improved.
Meanwhile in the gate valve of the utility model embodiment offer, valve plate 2 and valve rod 5 individually seal, the mutual not shadow of maintenance
It rings；Compact-sized simple, dust will not be leaked to outside valve chamber 11；Valve plate 2, valve rod 5 will not block.
When above-mentioned valve plate 12 is closed, dust can be deposited on valve plate 2, be sealed in order to avoid dust enters valve plate with valve plate 2
Chamber 12, above-mentioned gate valve further include the dust blowing component 9 being set in valve chamber 11 and for wiping the dust on valve plate 2 off.
In above-mentioned gate valve, with the movement of valve plate 2, dust blowing component 9 wipes the dust on valve plate 2 off, so as to avoid
Dust enters valve plate seal chamber 12 with valve plate 2.
Preferably, above-mentioned dust blowing component 9 is located at the inlet side of valve plate seal chamber 12.For the ease of installation, preferential selection is scraped
Dirt component 9 is arranged on partition board.Certainly, it also may be selected dust blowing component 9 being arranged on valve body 1, it is not limited to this.
Preferably, in above-mentioned gate valve, dust blowing component 9 is arranged in the both sides of valve plate 2.Certainly, other arrangements also may be selected
Mode, specifically, above-mentioned dust blowing component 9 are coated at valve plate 2.It is understood that valve plate 2 can move in dust blowing component 9.
In order to avoid realizing that sealing and dust blowing, valve plate 2 are tightly connected with dust blowing component 9.Further, valve plate 2 is by close
Seal is tightly connected with dust blowing component 9.At this point, valve plate 2 is tightly connected with partition board by sealing ring and dust blowing component 9.
In order to advanced optimize above-mentioned gate valve, above-mentioned gate valve further include be set to valve body 1 and with valve plate seal chamber 12
The compressed gas interface 8 of connection.In this way, compressed gas can be injected into valve plate seal chamber 12 by compressed gas interface 8, pass through
Compressed gas increases the pressure in valve plate seal chamber 12, prevents the dust from entering in valve plate seal chamber 12.
Above-mentioned valve plate seal chamber 12 is equipped with removably cover board 13, in this way, facilitating maintenance.It is understood that valve body 1
Including valve body ontology and cover board 13, cover board 13 and valve body ontology are detachably connected.It is understood that cover board 13 and valve body sheet
Body is tightly connected.At this point, if gate valve has compressed gas interface 8, the compressed gas interface 8 is preferentially selected to be arranged in cover board 13
On.
Preferably, above-mentioned gate valve further includes guiding parts 4, this is set in valve chamber 11 and is used to support the branch of valve plate 2
Support part part 4.
It is moved for the ease of valve plate 2, above-mentioned support member 4 is idler wheel.
For the number and shape of above-mentioned support member 4, it is designed according to actual needs.Preferably, support member 4 to
It is two less, and is set gradually along the direction of motion of valve plate 2.
In order to improve stability of strutting system, above-mentioned guiding parts 4 is arranged in the both sides of valve rod 5, i.e., above-mentioned guiding parts 4 supports
The both sides of valve plate 2.
After dust deposit is on valve plate 2, valve plate 2 is easier to deform, and it is stuck in valve chamber 11 relatively to easily lead to valve plate 2.For
Avoid valve plate 2 stuck, above-mentioned valve rod 5 is hinged with valve plate 2 so that valve plate 2 can generate relatively with valve rod 5 along the axial direction of valve rod 5
It is mobile.
In above-mentioned gate valve, in order to realize that valve plate 2 and valve rod 5 can generate relative movement along the axial direction of valve rod 5, then require
Hinge axes are perpendicular to the axis of valve rod 5, and hinge axes are perpendicular to the thickness direction of valve plate 2.
In above-mentioned gate valve, after depositing dust on valve plate 2, valve plate 2 rotates while deformation so that 2 phase of valve plate
Axial direction for valve rod 5 along valve rod 5 moves, and specifically, valve rod 2 is moved to valve plate seal chamber 12, so as to avoid valve plate 2
It is stuck.
For the ease of realizing that above-mentioned articulated structure, above-mentioned valve plate 2 are hinged by hinge 6 with valve rod 5.Specifically, the hinge 6
Including：First connecting plate passes through the second hinged connecting plate of axis pin and the first connecting plate；Wherein, the first connecting plate and valve plate 2 are solid
Fixed connection, the second connecting plate are fixedly connected with valve rod 5；First connecting plate is parallel to valve rod 5 perpendicular to valve plate 2, the second connecting plate
Axial direction.
In order to simplify structure, above-mentioned valve plate 2 is parallel to the axis of valve rod 5.
Preferably, circular in cross-section of the above-mentioned valve rod 5 through the rod segment of partition board.In this way, being easy to implement valve rod 5 and partition board
Sealed connection, also allow for improving sealing reliability.The circumference machining accuracy for running through the rod segment of partition board for valve rod 5, according to
Actual needs selection, circumference machining accuracy is higher, and sealing is more reliable, and the utility model embodiment does not limit this.
Valve plate 2 is driven to move for the ease of valve rod 5, above-mentioned valve rod 5 includes：Lead screw 53, the spiral shell with 53 screw-thread fit of lead screw
Mother 52, the connecting rod 51 being fixedly connected with nut 52；Wherein, lead screw 53 is axially positioned on valve body 1, nut 52 and/or company along it
Extension bar 51 is circumferentially positioned in valve body 1 along its, and connecting rod 51 has the cavity for accommodating lead screw 53, connecting rod 51 and 2 phase of valve plate
Even.
It is understood that connecting rod 51 has the cavity for accommodating lead screw 53, to ensure connecting rod 51 with nut 52
It is moved along lead screw 53.Lead screw 53 along it rotatably arranged with and being axially positioned on valve body 1, specifically, lead screw 53 passes through bearing 7
It is rotatablely arranged at valve body 1, and bearing 7 is axially positioned on valve body 1 along it.
In above structure, rotary screw rod 53, connecting rod 51 is moved with nut 52 along lead screw 53, to drive valve plate 2 to move,
In this way, foring " blind rod type " structure, i.e. lead screw 53 will not move along its axis, and reduce operating space.
Further, above-mentioned connecting rod 51 is an integral structure with nut 52.
For the ease of installing and sealing, above-mentioned nut 52 is located at the outside of valve chamber 11, and connecting rod 51 runs through partition board, and connects
Bar 51 is connect with bulkhead seal.When circular in cross-section of the valve rod 5 through the rod segment of partition board, the cross section of connecting rod 51 is in circle
Shape, connecting rod 51 is polished rod at this time.
In above-mentioned gate valve, other structures also may be selected and realize that valve rod 5 drives valve plate 2 to move, such as rack and pinion mechanism
Deng, it is not limited to above-described embodiment.
For the ease of realizing that the opening and closing of gate valve, above-mentioned gate valve further include driving stem 5 so that valve rod 5 drives valve plate 2
The driving device 3 of movement.It is understood that driving device 3 is sequentially connected with valve rod 5.
Above-mentioned driving device 3 can be that handwheel or motor or cylinder, the utility model embodiment do not limit this
It is fixed.
The foregoing description of the disclosed embodiments enables those skilled in the art to realize or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this practicality is new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest range.
Claims (11)
1. a kind of gate valve, which is characterized in that including：
Valve body (1), the valve body (1) have：Valve chamber (11), the valve plate sealing for being located at the valve chamber (11) side and sealed set
Chamber (12), the valve plate seal chamber (12) and the valve chamber (11) are isolated by bulkhead seal；
Through the partition board and the valve plate (2) that is connect with the bulkhead seal；
It is connected with the valve plate (2) with the valve rod (5) for driving the valve plate (2) to move；
Wherein, the valve rod (5) is located at the outside of the valve plate seal chamber (12), between the valve rod (5) and the valve plate (2)
With pre-determined distance, the valve rod (5) connect through the partition board and with the bulkhead seal；When opening the gate valve,
The valve plate (2) moves from the valve chamber (11) to the valve plate seal chamber (12).
2. gate valve according to claim 1, which is characterized in that further include being set in the valve chamber (11) and for inciting somebody to action
The dust blowing component (9) that dust on the valve plate (2) is wiped off.
3. gate valve according to claim 2, which is characterized in that the dust blowing component (9) is coated at the valve plate (2),
And the valve plate (2) is connect by the dust blowing component (9) with the bulkhead seal.
4. gate valve according to claim 1, which is characterized in that further include be set to the valve body (1) and with the valve
The compressed gas interface (8) of plate seal chamber (12) connection.
5. gate valve according to claim 1, which is characterized in that the valve plate seal chamber (12) is equipped with removably cover board
(13)。
6. gate valve according to claim 1, which is characterized in that further include being set in the valve chamber (11) and for branch
Support the support member (4) of the valve plate (2).
7. gate valve according to claim 6, which is characterized in that the support member (4) is idler wheel.
8. gate valve according to claim 1, which is characterized in that the valve rod (5) is hinged so that institute with the valve plate (2)
Relative movement can be generated along the axial direction of the valve rod (5) by stating valve plate (2) and the valve rod (5).
9. gate valve according to claim 1, which is characterized in that cross of the valve rod (5) through the rod segment of the partition board
Section is rounded.
10. gate valve according to claim 1, which is characterized in that the valve rod (5) includes：Lead screw (53), with the silk
The nut (52) of bar (53) screw-thread fit, the connecting rod (51) being fixedly connected with the nut (52)；Wherein, the lead screw (53)
It is axially positioned on the valve body (1) along it, the nut (52) and/or the connecting rod (51) are circumferentially positioned in the valve along its
Body (1), the connecting rod (51) have the cavity for accommodating the lead screw (53), the connecting rod (51) and the valve plate
(2) it is connected.
11. according to the gate valve described in any one of claim 1-10, which is characterized in that further include the driving valve rod
(5) so that the valve rod (5) drives the driving device (3) of valve plate (2) movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721893470.0U CN207935461U (en) | 2017-12-29 | 2017-12-29 | A kind of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721893470.0U CN207935461U (en) | 2017-12-29 | 2017-12-29 | A kind of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935461U true CN207935461U (en) | 2018-10-02 |
Family
ID=63647480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721893470.0U Active CN207935461U (en) | 2017-12-29 | 2017-12-29 | A kind of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006244A (en) * | 2017-12-29 | 2018-05-08 | 福建龙净脱硫脱硝工程有限公司 | A kind of gate valve |
-
2017
- 2017-12-29 CN CN201721893470.0U patent/CN207935461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006244A (en) * | 2017-12-29 | 2018-05-08 | 福建龙净脱硫脱硝工程有限公司 | A kind of gate valve |
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