CN205715718U - Rack-and-pinion flat gate valve - Google Patents

Rack-and-pinion flat gate valve Download PDF

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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
Authority
CN
China
Prior art keywords
valve
flashboard
rack
valve body
flat gate
Prior art date
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
Application number
CN201620355432.9U
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Chinese (zh)
Inventor
张磊
张清明
李运龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAIRUITE VALVE INDUSTRY Co Ltd
Original Assignee
KAIRUITE VALVE INDUSTRY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KAIRUITE VALVE INDUSTRY Co Ltd filed Critical KAIRUITE VALVE INDUSTRY Co Ltd
Priority to CN201620355432.9U priority Critical patent/CN205715718U/en
Application granted granted Critical
Publication of CN205715718U publication Critical patent/CN205715718U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Rack-and-pinion flat gate valve
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.
CN201620355432.9U 2016-04-22 2016-04-22 Rack-and-pinion flat gate valve Expired - Fee Related CN205715718U (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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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