CN206268479U - Single-shutter gate valve - Google Patents
Single-shutter gate valve Download PDFInfo
- Publication number
- CN206268479U CN206268479U CN201621220368.XU CN201621220368U CN206268479U CN 206268479 U CN206268479 U CN 206268479U CN 201621220368 U CN201621220368 U CN 201621220368U CN 206268479 U CN206268479 U CN 206268479U
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- valve
- flashboard
- bonnet
- gland
- valve rod
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Abstract
The utility model discloses a kind of single-shutter gate valve,Including valve body,Bonnet,Valve rod,Valve body and bonnet are affixed,Medium channel is provided with valve body,Valve interior wall is provided with valve seat,Bonnet top is connected with support,Bonnet is provided with valve road,Valve road inwall is filled with filler,Filler is provided with gland,Hold-down grid,Valve rod one end is connected with handwheel,The valve rod other end is along valve road into valve body and the end is connected with flashboard,It is in 5 ° of inclined ram seal faces that flashboard is provided with valve rod center line towards the end face of valve seat,It is close to sealing surface of seat in the ram seal face,Flashboard is presented narrow structure lower greatly and is set,The flashboard upper end is provided with the installation cavity for being available for stem bottom to load,Stem bottom is in inverted T-type structure,Stem bottom includes horizontal cross portion and vertical bars,The horizontal cross portion outer wall is attached with cone shaped elastic pad,The cone point of the cone shaped elastic pad is set upward.The utility model have the advantages that mounting structure firmly, good seal performance, long service life.
Description
Technical field
The utility model belongs to valve technology field, especially a kind of to be applied to chemical industry, oil, metallurgy, papermaking, pharmacy etc.
Single-shutter gate valve in industry.
Background technology
Gate plate type gate valve of the prior art, including valve body, bonnet, valve rod and valve seat, valve rod are provided with flashboard, flashboard and valve
Seat sealing coordinates, and one end that valve rod stretches out valve body is connected with operating mechanism.The flat gate valve of said structure is by operating mechanism
Valve rod is driven to drive flashboard lifting, the medium channel of on and off valve, so as to realize the opening and closing of valve.But
During valve rod is lifted, for the flashboard of rising structure, it is easy for scratch sealing with the sealing surface misalignment of valve seat
Face, reduces sealing effectiveness, in addition, during valve rod is lifted, easy being collided in edge at valve road on bonnet mouthful place and
There is breach and cause that crack etc. occur in bonnet intensity decreases, additionally, at valve stem packing, easily occurring because filler thrust is inadequate
There is Seepage.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of single-shutter gate valve, and the single-shutter gate valve will
Sealing surface is set inclined 5 ° of structure and causes that flashboard enters and fashionable entered by incline structure and will not have wiping to the sealing surface on top
Wound, and contact even closer with the sealing surface of bottom.
To achieve these goals, the technical solution adopted in the utility model is：A kind of single-shutter gate valve, including valve body,
Bonnet, valve rod, valve body and bonnet are affixed, and medium channel is provided with valve body, and valve interior wall is provided with valve seat, and bonnet top is connected with branch
Frame, bonnet is provided with valve road, and valve road extends to support, and valve road inwall is filled with filler, and filler is provided with gland, filler pressure
The side of covering is provided with hold-down grid, and valve rod one end is externally connected with handwheel positioned at support, and the valve rod other end enters valve body along valve road
In and the end is connected with flashboard, it is characterised in that：It is in 5 ° of inclined locks that flashboard is provided with valve rod center line towards the end face of valve seat
Sealing surface of seat is close in plate sealing surface, the ram seal face, and flashboard is presented narrow structure lower greatly and set, and the flashboard upper end is provided with
The installation cavity for being available for stem bottom to load, stem bottom is in inverted T-type structure, and stem bottom includes horizontal cross portion and vertical bar
Portion, the horizontal cross portion outer wall is attached with cone shaped elastic pad, and the cone point of the cone shaped elastic pad is set upward.
In said structure, the inclined 5 ° of settings in ram seal face, the narrow upper end in lower end structure wide, what is lifted with flashboard
During, its narrow one end is first got off, and one end wide is first gone out, and can avoid the abrasion to sealing surface of seat, and this inclines
Biassed fabric causes to be sealed between flashboard and valve seat more closely, is contacted by cushion between stem bottom and flashboard installation cavity, should
Cushion compression lateral magnification during depressed stem has the thrust of horizontal direction to flashboard so that ram seal face and valve
Seat sealing surface connection is tightr.
Further, the vertical bars bottom surface is also attached with arc-shaped cushion, and the circular arc of the arc-shaped cushion is bent
Facial contour is contacted with flashboard installation cavity bottom surface.
In said structure, stem bottom by arc-shaped cushion and installation cavity bottom surface cause valve rod and installation cavity it
Between be completely embedded, by the setting of cushion can by local minor adjustment space, can avoid gap it is excessive cause valve rod with
Between flashboard connect pine, and in flashboard lifting process because of the relation in this gap to sealing surface of seat caused by scrape.
Further, the top of described filler gland is provided with taper surface, and the taper surface is downward-sloping by culminating point and is somebody's turn to do
Step surface is formed between taper surface edge and gland side wall, valve road inwall is provided with the groove coordinated with the step surface, filler
Gland is held on groove by step surface, and hold-down grid is provided with the inclined end face coordinated with taper surface, hold-down grid bottom surface office
Portion is abutted with bonnet upper surface, and annular gap is left between described filler gland inner hole wall and valve rod.
In said structure, the upper end of gland is coordinated by taper surface with hold-down grid, forms close attachment structure,
Hold-down grid is coordinated by inclined-plane and taper surface has component laterally and downwardly to taper surface so that gland is existing is pressed downward
Power have the power of lateral magnification again, and the annular groove of gland inwall is then for space has been reserved in the lateral magnification of gland.
Further, inclined-plane is formed after port inner wall of the valve road on the bonnet towards medium channel one end is cleaved,
Heap is welded with the strengthens angle of pyramidal structure on the inclined-plane, and the section of the strengthens angle is in isosceles trapezoidal structure, and the valve rod is to have put
Axle sleeve, axle sleeve has the sliding shoulder being adapted to the inclined-plane of the strengthens angle.
In said structure, valve road port strengthens the intensity of the edge by built-up welding chromium metal, in valve rod lifting process
In avoid occurring because of collision friction breach or crack etc. and drop low intensive phenomenon, extend valve service life.
Using such scheme, the utility model have the advantages that mounting structure firmly, good seal performance, long service life.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing 1 is the utility model specific embodiment structure sectional view；
Accompanying drawing 2 is the structural representation of the utility model specific embodiment flashboard；
Accompanying drawing 3 is the enlarged drawing of the utility model specific embodiment part A；
Accompanying drawing 4 is the enlarged drawing of the utility model specific embodiment part B；
Accompanying drawing 5 is the enlarged drawing of the utility model specific embodiment Local C；
Valve body 1, bonnet 2, valve road 21, filler 22, gland 23, taper surface 231, step surface 232, annular gap 234,
Hold-down grid 24, valve rod 3, stem bottom 31, horizontal cross portion 311, cone shaped elastic pad 32, vertical bars 312, arc-shaped elasticity
Pad 33, valve seat 4, strengthens angle 41, flashboard 5, ram seal face 51, installation cavity 52, axle sleeve 34, sliding shoulder 341, support 6, handwheel 7.
Specific embodiment
Specific embodiment of the utility model is as Figure 1-5 the gate valve of single disc 5, including valve body 1, bonnet 2, valve rod 3,
Valve body 1 and bonnet 2 are affixed, and medium channel is provided with valve body 1, and the inwall of valve body 1 is provided with valve seat 4, and the top of bonnet 2 is connected with support 6,
Bonnet 2 is provided with valve road 21, and valve road 21 extends to support 6, and support 6 is provided with the through hole of support 6, and the inwall of valve road 21 is filled with filler
22, filler 22 is provided with gland 23, and the top of gland 23 is provided with hold-down grid 24, and the one end of valve rod 3 is located at outside support 6
It is connected with handwheel 7, the other end of valve rod 3 is connected with flashboard 5 along valve road 21 into the valve body 1 and end, flashboard 5 is towards valve seat 4
End face be provided with the center line of valve rod 3 in 5 ° of inclined ram seal faces 51, the sealing surface of valve seat 4, lock are close in ram seal face 51
Plate 5 is presented narrow structure lower greatly and is set, and the upper end of flashboard 5 is provided with the installation cavity 52 for being available for stem bottom 31 to load, and stem bottom 31 is in
Inverted T-type structure, stem bottom 31 includes horizontal cross portion 311 and vertical bars 312, and the outer wall of horizontal cross portion 311 is attached with
Cone shaped elastic pad 32, the cone point of the cone shaped elastic pad 32 is set upward.51 inclined 5 ° of ram seal face setting, lower end is narrow
Upper end structure wide, during being lifted with flashboard 5, its narrow one end is first got off, and one end wide is first gone out, and can be kept away
Exempt from the abrasion to the sealing surface of valve seat 4, and the incline structure is caused to be sealed between flashboard 5 and valve seat 4 more closely, stem bottom 31
Contacted by cushion between the installation cavity 52 of flashboard 5, the cushion during valve rod 3 is pushed compression lateral magnification to lock
Plate 5 has the thrust of horizontal direction so that ram seal face 51 is connected tightr with the sealing surface of valve seat 4.
Further, the bottom surface of vertical bars 312 is also attached with arc-shaped cushion 33, the circular arc of the arc-shaped cushion 33
Curved surface profile is contacted with the bottom surface of 5 installation cavity of flashboard 52.Stem bottom 31 is matched somebody with somebody by arc-shaped cushion 33 with the bottom surface of installation cavity 52
Close and cause to be completely embedded between valve rod 3 and installation cavity 52, can be by local minor adjustment space by the setting of cushion, can be with
Avoid that gap is excessive to cause to connect pine between valve rod 3 and flashboard 5, it is and right because of the relation in this gap in the lifting process of flashboard 5
The sealing surface of valve seat 4 causes to scrape.
Further, the top of gland 23 is provided with taper surface 231, and the taper surface 231 is downward-sloping by culminating point
And step surface 232 is formed between the edge of taper surface 231 and the side wall of gland 23, the inwall of valve road 21 is provided with and the step surface
232 grooves for coordinating, gland 23 is held on groove by step surface 232, and hold-down grid 24 is provided with matches somebody with somebody with taper surface 231
The inclined end face of conjunction, the bottom surface of hold-down grid 24 locally abuts with the upper surface of bonnet 2, between the inner hole wall of gland 23 and valve rod 3
Leave annular gap 234.The upper end of gland 23 is coordinated by taper surface 231 with hold-down grid 24, forms closely connection
Structure, hold-down grid 24 is coordinated by inclined-plane and taper surface 231 has component laterally and downwardly to taper surface 231 so that filler pressure
The existing power being pressed downward of lid 23 has the power of lateral magnification again, and the annular groove of the inwall of gland 23 is then the horizontal stroke of gland 23
Space has been reserved to expansion.
Further, inclined-plane is formed after port inner wall of the valve road 21 on bonnet 2 towards medium channel one end is cleaved, should
Heap is welded with the strengthens angle 41 of pyramidal structure on inclined-plane, and the section of the strengthens angle 41 is in isosceles trapezoidal structure, and valve rod 3 is to have put axle
Set 34, axle sleeve 34 has the sliding shoulder 341 being adapted to the inclined-plane of the strengthens angle 41.Strengthened by built-up welding chromium metal the port of valve road 21
The intensity of the edge, avoids occurring because of collision friction the drop such as breach or crack low intensive existing in the lifting process of valve rod 3
As extending valve service life.
The utility model is not limited to above-mentioned specific embodiment, and persons skilled in the art are public according to the utility model
The content opened, can implement of the present utility model using other various specific embodiments, or every use the utility model
Design structure and thinking, do simple change or change, both fall within protection domain of the present utility model.
Claims (4)
1. a kind of single-shutter gate valve, including valve body, bonnet, valve rod, valve body and bonnet are affixed, and medium channel, valve are provided with valve body
Internal wall is provided with valve seat, and bonnet top is connected with support, and bonnet is provided with valve road, and valve road extends to support, the filling of valve road inwall
There is filler, filler is provided with gland, and gland top is provided with hold-down grid, and valve rod one end is located at being externally connected with for support
Handwheel, the valve rod other end is along valve road into valve body and the end is connected with flashboard, it is characterised in that：Flashboard is towards the end of valve seat
Face is provided with valve rod center line in 5 ° of inclined ram seal faces, and sealing surface of seat is close in the ram seal face, and flashboard is presented
Narrow structure lower greatly is set, and the flashboard upper end is provided with the installation cavity for being available for stem bottom to load, and stem bottom is in inverted T-type structure,
Stem bottom includes horizontal cross portion and vertical bars, and the horizontal cross portion outer wall is attached with cone shaped elastic pad, the cone shaped elastic
The cone point of pad is set upward.
2. single-shutter gate valve according to claim 1, it is characterised in that：The vertical bars bottom surface is also attached with arc-shaped
Cushion, the circular arc camber profile of the arc-shaped cushion is contacted with flashboard installation cavity bottom surface.
3. single-shutter gate valve according to claim 1, it is characterised in that：The top of described filler gland is provided with taper surface,
The taper surface is downward-sloping by culminating point and step surface, valve road inwall are formed between the taper surface edge and gland side wall
The groove coordinated with the step surface is provided with, gland is held on groove by step surface, and hold-down grid is provided with and taper surface
The inclined end face of cooperation, hold-down grid bottom surface locally abuts with bonnet upper surface, between described filler gland inner hole wall and valve rod
Leave annular gap.
4. the single-shutter gate valve according to claim 1-3 any one, it is characterised in that：Valve road direction on the bonnet
Inclined-plane is formed after the port inner wall of medium channel one end is cleaved, heap is welded with the strengthens angle of pyramidal structure on the inclined-plane, the reinforcement
The section at angle is in isosceles trapezoidal structure, and the valve rod is to have put axle sleeve, and axle sleeve has the cunning being adapted to the inclined-plane of the strengthens angle
Shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220368.XU CN206268479U (en) | 2016-11-12 | 2016-11-12 | Single-shutter gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220368.XU CN206268479U (en) | 2016-11-12 | 2016-11-12 | Single-shutter gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268479U true CN206268479U (en) | 2017-06-20 |
Family
ID=59040227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220368.XU Active CN206268479U (en) | 2016-11-12 | 2016-11-12 | Single-shutter gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307083A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of oil equipment multi-functional valve |
| CN111637239A (en) * | 2020-06-12 | 2020-09-08 | 哈电集团哈尔滨电站阀门有限公司 | Gate type labyrinth control valve |
-
2016
- 2016-11-12 CN CN201621220368.XU patent/CN206268479U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307083A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of oil equipment multi-functional valve |
| CN111637239A (en) * | 2020-06-12 | 2020-09-08 | 哈电集团哈尔滨电站阀门有限公司 | Gate type labyrinth control valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 Yongxing street, Longwan District, Wenzhou, Zhejiang Province, Jinhai two road 947 Patentee after: Tang Gong Valve Group Co., Ltd. Address before: 325000 Yongxing street, Longwan District, Wenzhou, Zhejiang Province, Jinhai two road 947 Patentee before: Valve Co., Ltd. Tang Engineering |