CN207437818U - A kind of hard sealed flat gate valve valve seat of self-adaptation type - Google Patents
A kind of hard sealed flat gate valve valve seat of self-adaptation type Download PDFInfo
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- CN207437818U CN207437818U CN201721303008.0U CN201721303008U CN207437818U CN 207437818 U CN207437818 U CN 207437818U CN 201721303008 U CN201721303008 U CN 201721303008U CN 207437818 U CN207437818 U CN 207437818U
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- valve seat
- valve
- flashboard
- valve body
- self
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Abstract
The utility model is related to a kind of hard sealed flat gate valve valve seats of self-adaptation type, including flashboard, valve seat, valve body and butterfly spring, the medium channel of lateral direction penetrating is formed in valve body, one flashboard is installed in the middle part of valve body, flashboard is driven to be moved up and down in valve body, so as to open or block medium channel, embedded with valve seat in valve body between flashboard both lateral sides and medium channel truncation surface, the elastic groove of one of annular of equal side processing in the passage of valve seat.The utility model is reduced to valve seat, flashboard processing and the requirement of assembly precision, reduces processing cost；Reduce the sealing force to be formed needed for sealing so that valve opening and closing torque reduces, and sealing surface wear reduces, and service life is improved.
Description
Technical field
The utility model is related to flat gate valve fields, are related to flat gate valve sealed structute, are specifically that a kind of self-adaptation type is hard
Sealed flat gate valve valve seat.
Background technology
At present, flat gate valve sealing surface of seat is a plane, which forms sealing pair with flashboard plane contact.Existing skill
Art has the following disadvantages：(1) the hard sealed flat gate valve sealing performance machining accuracy stringent dependent on valve seat and flashboard and assembling
Precision, valve seat, flashboard processing technology are complicated, and difficulty is big, high processing costs；(2) for make up valve seat, flashboard, valve seat block hole machined,
Rigging error is, it is necessary to a sealing force combines closely to form sealing pair to ensure sealing surface of seat and gate sealing surface, sealing force
Small to be not enough to make up processing, rigging error to reach sealing, power senior general causes that valve opening and closing torque is big, and sealing surface wear is serious,
Service life is low.
It is retrieved into crossing, does not find the disclosed patent close with present patent application.
Utility model content
The purpose of the utility model is to overcome in place of the deficiencies in the prior art, provide a kind of self-adaptation type hard seal plate
Gate valve seat in the case where machining accuracy and assembly precision are undesirable, is capable of the sealing of self-control valve seat and rams contact
Face enables valve seat and flashboard to have good contact, ensures sealing performance.
The utility model solves its technical problem and following technical scheme is taken to realize：
A kind of hard sealed flat gate valve valve seat of self-adaptation type, including flashboard, valve seat, valve body and butterfly spring, is formed in valve body
The medium channel of lateral direction penetrating is equipped with a flashboard in the middle part of valve body, and flashboard is driven to be moved up and down in valve body,
So as to open or block medium channel, valve seat is embedded in valve body between flashboard both lateral sides and medium channel truncation surface,
It is characterized in that：The elastic groove of one of annular of equal side processing in the passage of valve seat.
Moreover, the valve seat of the horizontal one side of the contact surface of the valve seat and flashboard is formed with hard sealing with flashboard inner circumferential
Face.
Moreover, embedded with the disc spring of an annular between the valve seat transverse direction one side and the contact face of valve body.
Moreover, it is arranged at intervals with multiple tracks O-ring between the outer circle and valve body of the valve seat.
Moreover, described be also formed with one and the spaced auxiliary annular groove of elastic groove in the passage of valve seat.
The advantages of the utility model and good effect are：
The utility model is reduced to valve seat, flashboard processing and the requirement of assembly precision, reduces processing cost；It reduces
Form the sealing force needed for sealing so that valve opening and closing torque reduces, and sealing surface wear reduces, and service life is improved.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through specific embodiment the utility model is described in further detail, following embodiment is simply retouched
The property stated, be not limited, it is impossible to limit the scope of protection of the utility model with this.
A kind of hard sealed flat gate valve valve seat of self-adaptation type, including flashboard 1, valve seat 2, valve body 4 and butterfly spring 5, referring to attached
Shown in Fig. 1, the medium channel of lateral direction penetrating is formed in valve body 4, a flashboard 1, the driven kinetic energy of flashboard are installed in the middle part of valve body
It is enough to be moved up and down in valve body, so as to open or block medium channel；
In order to ensure leakproofness of shutting off, valve is embedded in valve body between flashboard both lateral sides and medium channel truncation surface
Seat 2；
In order to further ensure leakproofness, valve seat and the flashboard inner circumferential of the horizontal one side of the contact surface of valve seat and flashboard are made
There is hard sealing surface 8, embedded with the disc spring 5 of an annular between valve seat transverse direction opposite side and the contact face of valve body, persistently to valve
Seat provides pretightning force.Sealing force is collectively formed with valve inner pressure medium in the elastic force of disc spring, acts on valve seat, makes valve seat close
Front cover contacts to form sealing pair with gate sealing surface.
Multiple tracks O-ring 3 is arranged at intervals between the outer circle and valve body of valve seat to seal.
This practical innovative point is：
The elastic groove 6 of one of annular of equal side processing, the elasticity groove are pushed when valve seat is sealed in the passage of valve seat
To flexible deformation can be generated during flashboard, valve seat and flashboard, valve seat block hole machined and the error being assembled to form are made up so that sealing surface
Contact is good, ensures that valve seat can be good at contacting and forms sealing with gate sealing surface, is finally reached the purpose of sealing.
One and the spaced auxiliary annular groove 7 of elastic groove, auxiliary buffering are also formed in the passage of valve seat.
Although disclosing the embodiment and attached drawing of the utility model for the purpose of illustration, those skilled in the art can be with
Understand：Do not departing from the utility model and spirit and scope of the appended claims, it is various replace, change and modification are all can
Can, therefore, the scope of the utility model is not limited to embodiment and attached drawing disclosure of that.
Claims (5)
1. a kind of hard sealed flat gate valve valve seat of self-adaptation type, including flashboard, valve seat, valve body and butterfly spring, horizontal stroke is formed in valve body
To the medium channel of perforation, a flashboard is installed in the middle part of valve body, flashboard is driven to be moved up and down in valve body, from
And open or block medium channel, valve seat is embedded in valve body between flashboard both lateral sides and medium channel truncation surface,
It is characterized in that：The elastic groove of one of annular of equal side processing in the passage of valve seat.
2. the hard sealed flat gate valve valve seat of self-adaptation type according to claim 1, it is characterised in that：The valve seat and flashboard
Valve seat and the flashboard inner circumferential of horizontal one side of contact surface be formed with hard sealing surface.
3. the hard sealed flat gate valve valve seat of self-adaptation type according to claim 2, it is characterised in that：The valve seat horizontal one
Embedded with the disc spring of an annular between side and the contact face of valve body.
4. the hard sealed flat gate valve valve seat of self-adaptation type according to claim 1, it is characterised in that：The outer circle of the valve seat
Multiple tracks O-ring is arranged at intervals between valve body.
5. the hard sealed flat gate valve valve seat of self-adaptation type according to claim 1, it is characterised in that：The leading in valve seat
One and the spaced auxiliary annular groove of elastic groove are also formed in road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721303008.0U CN207437818U (en) | 2017-10-11 | 2017-10-11 | A kind of hard sealed flat gate valve valve seat of self-adaptation type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721303008.0U CN207437818U (en) | 2017-10-11 | 2017-10-11 | A kind of hard sealed flat gate valve valve seat of self-adaptation type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437818U true CN207437818U (en) | 2018-06-01 |
Family
ID=62295523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721303008.0U Active CN207437818U (en) | 2017-10-11 | 2017-10-11 | A kind of hard sealed flat gate valve valve seat of self-adaptation type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679251A (en) * | 2018-07-13 | 2018-10-19 | 纽威石油设备（苏州）有限公司 | A kind of all-metal valve seat sealing mechanism and flat gate valve |
-
2017
- 2017-10-11 CN CN201721303008.0U patent/CN207437818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679251A (en) * | 2018-07-13 | 2018-10-19 | 纽威石油设备（苏州）有限公司 | A kind of all-metal valve seat sealing mechanism and flat gate valve |
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