CN205715718U - Rack-and-pinion flat gate valve - Google Patents
Rack-and-pinion flat gate valve Download PDFInfo
- Publication number
- CN205715718U CN205715718U CN201620355432.9U CN201620355432U CN205715718U CN 205715718 U CN205715718 U CN 205715718U CN 201620355432 U CN201620355432 U CN 201620355432U CN 205715718 U CN205715718 U CN 205715718U
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- China
- Prior art keywords
- valve
- flashboard
- rack
- valve body
- flat gate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
This utility model provides a kind of rack-and-pinion flat gate valve, relates to valve gate technology.Described rack-and-pinion flat gate valve, including: valve body, it is provided with medium channel in described valve body, described valve body is additionally provided with the flashboard that can block described medium channel；It is provided with tooth bar on described flashboard, it is provided with gear on described valve body, described gear engages with described tooth bar, described flashboard is driven to move back and forth up and down to open along the tangential direction of described gear or block described medium channel by described pinion rotation, realize valve is turned on and off operation, eliminates valve rod part, effectively prevent the problem that valve rod extensional motion abrasion filler causes leakage, improve the sealing property of rack-and-pinion flat gate valve, reduce valve operation height and setting height(from bottom).
Description
Technical field
This utility model relates to valve gate technology, particularly relates to a kind of rack-and-pinion flat gate valve.
Background technology
It is being in the course of conveying of the exploitation of oil, natural gas etc. and oil plant, gas piping, rack-and-pinion
Flat gate valve is widely adopted.Rack-and-pinion flat gate valve typically by valve body, valve gap, flashboard, valve rod and
Handwheel forms；Handwheel is arranged on valve gap, and handwheel is fixed with the head end of valve rod and is connected；Formed in valve body
There are medium channel, flashboard to be arranged in medium channel, and flashboard is fixed with the tail end of valve rod and is connected；Pass through
Rotate handwheel can move up and down by band ovable valve stem, and then drive flashboard move up and down to open or block medium
Passage.
In prior art, owing to the control system operating pressure in the device such as oil drilling, oil recovery is the highest,
The sealing property of the rack-and-pinion flat gate valve used in device is required the highest, therefore, in order to improve
The sealing property of rack-and-pinion flat gate valve, is generally provided with airtight and watertight padding between valve rod and valve seat；But
Owing to valve rod back and forth moves up and down, easily scratch airtight and watertight padding and cause revealing, so that rack-and-pinion is put down
The sealing reliability of plate gate valve is poor.Particularly large bore valves, operates the most high-leveled and difficult operation, installs height
Degree height, captures space bigger.
Utility model content
For drawbacks described above of the prior art, this utility model provides a kind of rack-and-pinion flat gate valve,
Sealing reliability is higher.
First aspect of the present utility model is to provide a kind of rack-and-pinion flat gate valve, including: valve body,
It is provided with medium channel in described valve body, described valve body is additionally provided with the lock that can block described medium channel
Plate；It is provided with tooth bar on described flashboard, described valve body is provided with gear, described gear and described tooth bar
Engagement, drives described flashboard to move back and forth out along the tangential direction of described gear by described pinion rotation
Open or block described medium channel.
Further, described rack and pinion includes two or more respectively, and each described gear is with corresponding
Described tooth bar engagement.
Further, gear described at least two is connected by a power transmission shaft.
Further, described power transmission shaft is rotatably arranged on described valve body, and described power transmission shaft stretches out
It is provided with the drive mechanism for driving described power transmission shaft to rotate in one end of described valve body.
Further, described power transmission shaft is provided with circular hole towards described drive mechanism one end, and described circular hole is embedded
It is provided with the first sealing ring for improving sealing between described power transmission shaft and valve body；Described power transmission shaft towards
Fill out between described drive mechanism one end and described valve body and be provided with sealant.
Further, described valve body also includes the valve seat being arranged on described medium channel inwall, described valve
Seat surrounds a part for described medium channel towards the surface of medium channel.
Further, described valve seat is provided with groove towards the surface of described flashboard, is embedded in described groove
There is the second sealing ring for improving sealing between flashboard and valve seat.
Further, described medium channel includes an inlet and an outlet, described flashboard be arranged on described entrance and
Between outlet, and described flashboard is perpendicular to the axial of described medium channel.
Further, described flashboard is tabular, and the effective surface area of described flashboard is more than or equal to institute
State the cross-sectional area of medium channel.
Further, it is provided with inside described valve body for guaranteeing that described flashboard is towards leading that preset direction moves
To baffle plate.
The rack-and-pinion flat gate valve that this utility model provides, including: valve body, it is provided with Jie in described valve body
Matter passage, is additionally provided with the flashboard that can block described medium channel on described valve body；Set on described flashboard
Being equipped with tooth bar, described valve body is provided with gear, described gear engages with described tooth bar, by described tooth
Wheel rotates and drives described flashboard move back and forth up and down to open along the tangential direction of described gear or block described
Medium channel, it is achieved valve be turned on and off operation, eliminate valve rod part, effectively prevent valve rod
Extensional motion abrasion filler causes the problem of leakage, improves the sealing property of rack-and-pinion flat gate valve,
Reduce valve operation height and setting height(from bottom).
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model rack-and-pinion flat gate valve；
Fig. 2 is that the A of Fig. 1 is to schematic diagram；
Fig. 3 is the partial schematic diagram of Fig. 2.
Wherein,
10-valve body；11-medium channel；
20-flashboard；21-tooth bar；
22-gear；23-power transmission shaft；
24-V type airtight and watertight padding；25-gland；
26-screw；30-valve gap；
31-cavity volume；40-bolt；
50-valve seat；60-the first sealing ring；
70-deflector apron.
Detailed description of the invention
Below in conjunction with the accompanying drawings, embodiments more of the present utility model are elaborated.Do not conflict
In the case of, the feature in following embodiment and embodiment can be mutually combined.
In this utility model, term " is installed ", " connection ", the term such as " fixing " all should broad sense
Understanding, such as, " connection " can be fixing connection, it is also possible to is to removably connect, or connects integratedly
Connect.For the ordinary skill in the art, can understand that above-mentioned term is at this as the case may be
Concrete meaning in utility model.
Fig. 1 is the structural representation of this utility model rack-and-pinion flat gate valve；Refer to Fig. 1.
The present embodiment provides a kind of rack-and-pinion flat gate valve, including: valve body 10, it is provided with in valve body 10
Medium channel 11, is additionally provided with the flashboard 20 that can block medium channel 11 on valve body 10；Flashboard 20
On be provided with tooth bar 21, valve body 10 is provided with gear 22, gear 22 engages with tooth bar 21, passes through
Gear 22 rotates and drives flashboard 20 to move back and forth to open along the tangential direction of gear 22 or block medium to lead to
Road 11.
Specifically, valve body 10 offering the medium channel 11 run through, medium channel 11 can be in column；
Medium channel 11 can include an inlet and an outlet, and entrance and exit can coaxially and be connected；Concrete medium
Which end of passage 11 is entrance, can be set according to actual needs.Flashboard 20 is arranged on entrance
With between outlet, flashboard 20 can be perpendicular to the axially arranged of medium channel 11；Move permissible on flashboard 20
For opening medium channel 11, it can be to close medium channel 11 that flashboard 20 moves down.Tooth bar 21 can pass through
It is weldingly fixed on flashboard 20；Or, tooth bar 21 can be connected fixing with flashboard 20 by securing member.
In the present embodiment, being also provided with valve seat 50 on the inwall of medium channel 11, valve seat 50 is permissible
Employing wear-resistant material is formed, and valve seat 50 can surround medium channel 11 towards the surface of medium channel 11
A part, valve seat 50 is arranged on the both sides of flashboard 20, and valve seat 50 is towards the surface of flashboard 20 and flashboard
The surface towards valve seat 50 of 20 cooperates sealing.Wherein, flashboard 20 is towards two of valve seat 50
All process through overspray tungsten on surface, to improve the performance of the anticorrosive resistance to erosion of flashboard 20.
The rack-and-pinion flat gate valve that the present embodiment provides, including: valve body 10, it is provided with Jie in valve body 10
Matter passage 11, is additionally provided with the flashboard 20 that can block medium channel 11 on valve body 10；On flashboard 20
Being provided with tooth bar 21, valve body 10 is provided with gear 22, gear 22 engages with tooth bar 21, passes through tooth
Wheel 22 rotation drives flashboard 20 move back and forth to open along the tangential direction of gear 22 or block medium channel
11, it is achieved valve be turned on and off operation, effectively prevent prior art stem movement abrasion filler lead
The problem causing leakage, improves the sealing property of rack-and-pinion flat gate valve.
Further, valve seat 50 is provided with groove towards the surface of flashboard 20, be embedded with in groove for
Improve the second sealing ring of sealing between flashboard 20 and valve seat 50, to avoid Jie in medium channel 11
Mass flow enters the cavity volume 31 in valve gap 30, thus improves the sealing property of rack-and-pinion flat gate valve further.
Fig. 2 is that the A of Fig. 1 is to schematic diagram；Refer to Fig. 2.
Further, tooth bar 21 and gear 22 include two or more respectively, and each gear 22 is with corresponding
Tooth bar 21 engage.It is preferred that tooth bar 21 is two, it is separately positioned on the two ends of flashboard 20, accordingly
Ground, the gear 22 being meshed with tooth bar 21 is also two, so that moving up and down of flashboard 20 is more steady,
Help to ensure that the performance of rack-and-pinion flat gate valve.
Further, at least two gear 22 is connected by a power transmission shaft 23, and power transmission shaft 23 is rotatable
Be arranged on valve body 10.
Specifically, valve body 10 is provided with installing hole, and power transmission shaft 23 can be by bearings at valve body 10
Installing hole in, and power transmission shaft 23 stretches out in one end of valve body 10 and is provided with for driving power transmission shaft 23 to rotate
Drive mechanism (not shown).Wherein, driving means can be handle or bevel gearing.
In the present embodiment, gear 22 can be with power transmission shaft 23 interference fit；Or, gear 22 can lead to
Cross bonded being fixed on power transmission shaft 23.
Fig. 3 is the partial schematic diagram of Fig. 2；Refer to Fig. 3.
Further, power transmission shaft 23 is provided with circular hole towards drive mechanism one end, is embedded with for carrying in circular hole
First sealing ring 60 of sealing between high power transmission shaft 23 and valve body 10；Power transmission shaft 23 is towards the machine of driving
Fill out between the installing hole hole wall of structure one end and valve body 10 and be provided with sealant.Wherein, circular hole is along power transmission shaft 23
Circumference arrange, to form groove-like.Wherein, installing hole is used for installing power transmission shaft 23.
Specifically, power transmission shaft 23 is also formed with gap towards between one end and installing hole hole wall of drive mechanism,
Being filled with sealant in gap, sealant can include V-seal filler 24, and filler is passed through in airtight and watertight padding
Gland 25 compresses in the gap, and gland 25 is connected fixing with valve body 10 by screw 26.Its
In, the first sealing ring 60 between power transmission shaft 23 and valve body 10 is arranged on airtight and watertight padding and deviates from drive mechanism
One end.
In the present embodiment, when rotating drive mechanism, power transmission shaft 23 is followed drive mechanism and is rotated together, passes
Gear 22 on moving axis 23 rotates along with power transmission shaft 23, and then engaging by gear 22 and tooth bar 21
Flashboard 20 is driven to move up and down.During Gai, power transmission shaft 23 only rotates, and does not do tension and compression campaign,
Avoid the damage that airtight and watertight padding is caused.
Further, flashboard 20 can be in tabular, and the outline of flashboard 20 is interior with medium channel 11
Match profiles is closed, and the effective surface area of flashboard 20 is more than or equal to the cross-sectional area of medium channel 11.
Further, rack-and-pinion flat gate valve can also include that valve gap 30, valve gap 30 are arranged on valve body
The top of 10, the centrage of valve gap 30 can be vertical with the axis of medium channel 11, and valve gap 30 is permissible
It is connected by least two bolt 40 is fixing with valve body 10；Such as, valve gap 30 is towards the one of valve body 10
End be provided with bonnet flange, bonnet flange offers the bolt hole coordinated with bolt 40, valve body 10 towards
One end of valve gap 30 is provided with valve flange, and valve flange also offers the bolt hole coordinated with bolt 40,
Valve gap is fixed with valve body by bolt 40 through the bolt hole in bonnet flange and the bolt hole on valve flange
Connect；A cavity volume 31 is formed, for i.e. moving on flashboard 20 when medium channel 11 is opened in valve gap 30
Time house flashboard 20.
Further, can be provided with outside valve body 10 for guaranteeing what flashboard 20 moved towards preset direction
Deflector apron 70.Specifically, deflector apron 70 can be two, is separately positioned on the both sides of flashboard 20；
Deflector apron 70 can be fixed on valve gap 30, and such as, deflector apron 70 deviates from one end of flashboard 20
It is weldingly fixed on valve gap 30, thus avoids flashboard 20 to rock when moving towards valve gap 30.
The first sealing ring and the second sealing ring in the various embodiments described above can make entirety with elastomeric material
Having resilient component, its cross section can be circular or rectangle.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, and
Non-to its restriction；Although this utility model being described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in territory is it is understood that it still can be to the technical scheme described in foregoing embodiments
Modify, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the model of this utility model each embodiment technical scheme
Enclose.
Claims (10)
1. a rack-and-pinion flat gate valve, including: valve body, it is provided with medium channel in described valve body,
The flashboard that can block described medium channel it is additionally provided with on described valve body；It is characterized in that, on described flashboard
Being provided with tooth bar, described valve body is provided with gear, described gear engages with described tooth bar, by described
Pinion rotation drives described flashboard to move back and forth along the tangential direction of described gear and is given an account of to open or to block
Matter passage.
Rack-and-pinion flat gate valve the most according to claim 1, it is characterised in that described tooth bar and
Gear includes two or more respectively, and each described gear engages with corresponding described tooth bar.
Rack-and-pinion flat gate valve the most according to claim 2, it is characterised in that at least two institute
State gear to be connected by a power transmission shaft.
Rack-and-pinion flat gate valve the most according to claim 3, it is characterised in that described power transmission shaft
Rotatably be arranged on described valve body, and described power transmission shaft stretch out in one end of described valve body be provided with for
Drive the drive mechanism that described power transmission shaft rotates.
Rack-and-pinion flat gate valve the most according to claim 4, it is characterised in that described power transmission shaft
Be provided with circular hole towards described drive mechanism one end, be embedded with in described circular hole for improve described power transmission shaft with
First sealing ring of sealing between valve body；Described power transmission shaft is towards described drive mechanism one end and described valve
Fill out between body and be provided with sealant.
6. according to the rack-and-pinion flat gate valve described in any one of claim 1-5, it is characterised in that institute
Stating the valve seat that valve body also includes being arranged on described medium channel inwall, described valve seat leads to towards described medium
The surface in road surrounds a part for described medium channel.
Rack-and-pinion flat gate valve the most according to claim 6, it is characterised in that described valve seat court
It is provided with groove to the surface of described flashboard, is embedded with for improving between flashboard and valve seat in described groove
Second sealing ring of sealing.
8. according to the rack-and-pinion flat gate valve described in any one of claim 1-5, it is characterised in that institute
Stating medium channel to include an inlet and an outlet, described flashboard is arranged between described entrance and exit, and described
Flashboard is perpendicular to the axial of described medium channel.
9. according to the rack-and-pinion flat gate valve described in any one of claim 1-5, it is characterised in that institute
Stating flashboard is tabular, and the effective surface area of described flashboard is more than or equal to the transversal of described medium channel
Face area.
10. according to the rack-and-pinion flat gate valve described in any one of claim 1-5, it is characterised in that
It is provided with inside described valve body for guaranteeing the deflector apron that described flashboard moves towards preset direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355432.9U CN205715718U (en) | 2016-04-22 | 2016-04-22 | Rack-and-pinion flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355432.9U CN205715718U (en) | 2016-04-22 | 2016-04-22 | Rack-and-pinion flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715718U true CN205715718U (en) | 2016-11-23 |
Family
ID=57293180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620355432.9U Expired - Fee Related CN205715718U (en) | 2016-04-22 | 2016-04-22 | Rack-and-pinion flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757270A (en) * | 2016-04-22 | 2016-07-13 | 凯瑞特阀业有限公司 | Gear and rack flat plate gate valve |
| CN108692050A (en) * | 2018-07-31 | 2018-10-23 | 李琼 | A kind of dark rod flat plate gate valve |
| CN111022674A (en) * | 2019-12-15 | 2020-04-17 | 永嘉企达知识产权咨询有限公司 | Flat gate valve for oil field |
-
2016
- 2016-04-22 CN CN201620355432.9U patent/CN205715718U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757270A (en) * | 2016-04-22 | 2016-07-13 | 凯瑞特阀业有限公司 | Gear and rack flat plate gate valve |
| CN108692050A (en) * | 2018-07-31 | 2018-10-23 | 李琼 | A kind of dark rod flat plate gate valve |
| CN111022674A (en) * | 2019-12-15 | 2020-04-17 | 永嘉企达知识产权咨询有限公司 | Flat gate valve for oil field |
| CN111022674B (en) * | 2019-12-15 | 2021-06-08 | 东营天锦石油科技开发有限公司 | Flat gate valve for oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20200422 |