CN111006031A - Flat gate valve for oilfield pipeline - Google Patents
Flat gate valve for oilfield pipeline Download PDFInfo
- Publication number
- CN111006031A CN111006031A CN201911287809.6A CN201911287809A CN111006031A CN 111006031 A CN111006031 A CN 111006031A CN 201911287809 A CN201911287809 A CN 201911287809A CN 111006031 A CN111006031 A CN 111006031A
- Authority
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- China
- Prior art keywords
- valve
- ejector pad
- sleeve
- valve body
- block
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Abstract
The invention discloses an oil field pipeline flat gate valve, which comprises a valve body, a valve cover, a valve rod and a gate plate, wherein a flow passage is arranged in the valve body, and a left valve seat and a right valve seat are arranged in the flow passage, and the flat gate valve is characterized in that: be equipped with the installation cavity on the valve body that the runner both sides correspond respectively, be equipped with from top to bottom in the installation cavity and arrange in proper order on, in, push down the piece, on, in, push down the piece can remove the side position between business turn over left disk seat and the right disk seat about respectively, and go up the ejector pad, be equipped with first elastic component between the outside of well ejector pad and lower ejector pad and the valve body respectively, upward be equipped with the drive groove on ejector pad, well ejector pad and the lower ejector pad respectively, the outside inner wall of drive groove sets up to drive inclined plane up, wears to be equipped with the drive shaft of liftable in the drive groove, the drive shaft cooperatees with the drive inclined plane, be equipped with the mounting groove on the inner up end of ejector pad, be equipped with the kicking block that can reciprocate in the mounting groove, be. The invention effectively prevents slurry medium from being retained at the side position between the left valve seat and the right valve seat.
Description
Technical Field
The invention relates to an improved gate valve, in particular to an improved flat gate valve for an oilfield pipeline.
Background
On oil gas field wellhead assembly and production tree, the use medium is mud, and traditional type high pressure plate valve is in the use, and its mud can get into the valve body lumen to the cavity caking here destroys the valve easily.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide the flat gate valve for the oilfield pipeline, which has a reasonable structure and prevents slurry media from being retained at the side position between the left valve seat and the right valve seat.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: this kind of oil field pipeline plate valve, including valve body and valve gap, be equipped with the runner in the valve body, be equipped with left disk seat and right disk seat in the runner, the valve gap lid is established in the valve body upper end, wears to be equipped with the valve rod of liftable on the valve gap, and the valve rod upper end is equipped with driver part, and the valve rod lower extreme is equipped with the flashboard, flashboard and left disk seat, the sealed cooperation of right disk seat, its characterized in that: be equipped with the installation cavity on the valve body that the runner both sides correspond respectively, be equipped with the last ejector pad of arranging in proper order from top to bottom in the installation cavity, well ejector pad and lower ejector pad, go up the ejector pad, side position between business turn over left disk seat and the right disk seat is removed respectively to well ejector pad and lower ejector pad about can, and go up the ejector pad, be equipped with first elastic component between the outside of well ejector pad and lower ejector pad and the valve body respectively, go up the ejector pad, be equipped with the driving groove on well ejector pad and the lower ejector pad respectively, the outside inner wall of driving groove sets up to drive inclined plane up, wear to be equipped with the drive shaft of liftable in the driving groove, the drive shaft cooperatees with the drive inclined plane, be equipped with the mounting groove on the inner up end of ejector pad, be equipped with the kicking block that can reciprocate in the mounting: the valve comprises a valve cover, a valve rod, a transition sleeve, a middle gear, a shaft sleeve, a side gear, a drive shaft, a spiral groove, a convex block, a middle gear, a drive shaft, a shaft sleeve and a drive shaft anti-rotation positioning block, wherein the transition sleeve is arranged in the valve cover in a rotating mode, the spiral groove is formed in the transition sleeve, the convex block is arranged on the valve rod and is in transmission fit with the spiral groove, the middle gear is fixedly arranged at the lower end of the transition sleeve, the shaft sleeve is in threaded connection.
The lower position between the left valve seat and the right valve seat is provided with a bottom plate which can move up and down in a matching way, a third elastic piece is arranged between the bottom plate and the valve body, and the bottom plate is abutted against the lower end of the lower push block under the action of the third elastic piece.
The driving part comprises a support, a hand wheel, a threaded sleeve and a dustproof cover, the support is arranged at the upper end of the valve cover, the threaded sleeve is rotatably arranged in the support by the hand wheel, the threaded sleeve of the threaded sleeve is arranged on the valve rod, and the dustproof cover is arranged at the upper end of the support.
The upper end of the valve cover is provided with a packing groove, packing and a fixing block are arranged in the packing groove, the packing is attached to the valve rod, the fixing block is located on the outer side of the packing, the lower end of the fixing block is provided with a bearing, the bearing is abutted to the upper end of the conversion sleeve, the valve cover is provided with a limiting step for preventing the conversion sleeve from moving downwards, and a boss matched with the limiting step is arranged on the corresponding conversion sleeve.
And inward movement limiting structures are respectively arranged between the lower push block and the valve body, between the middle push block and the lower push block and between the upper push block and the lower push block.
The improved flat gate valve for the oilfield pipeline has the advantages that the upper push block, the middle push block and the lower push block are arranged to form the mud pushing device, the mud pushing device is driven to enter and exit from the side position between the left valve seat and the right valve seat by the mutual matching of the first elastic piece and the driving shaft, mud media are prevented from being retained at the side position between the left valve seat and the right valve seat, and the gate plate is prevented from being damaged.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view a-a of the closed state of fig. 1 according to the present invention.
Fig. 3 is a sectional view a-a of the opened state of fig. 1 according to the present invention.
Detailed Description
The drawings show the structure of the invention, and the details thereof are further described below with reference to the drawings. The flat gate valve for the oilfield pipeline comprises a valve body 1 and a valve cover 5, wherein a medium flow passage 31 is arranged in the valve body 1, a left valve seat 2 and a right valve seat 6 are arranged in the flow passage 31, the valve cover 5 is covered at the upper end of the valve body 1, a liftable valve rod 4 penetrates through the valve cover 5, a driving part is arranged at the upper end of the valve rod 4, a flashboard 3 is arranged at the lower end of the valve rod 4, the flashboard 3 is in sealing fit with the left valve seat 2 and the right valve seat 6, installation cavities are respectively arranged on the valve body 1 corresponding to the two sides of the flow passage 31, an upper push block 25, a middle push block 27 and a lower push block 28 are sequentially arranged in the installation cavities, a pressure plate 24 is arranged above the upper push block 25, the pressure plate 24 is fixed in the valve body 1 to position the upper push block 25, the middle push block 27 and the lower push block 28 can respectively move left and right to enter and go out of a side position between the left valve seat 2 and the right valve seat, first elastic component is the spring for the drive goes up ejector pad 25, well ejector pad 27 and ejector pad 28 down and moves inwards, goes up ejector pad 25, is equipped with the driving groove on well ejector pad 27 and the ejector pad 28 down respectively, and the outside inner wall in driving groove sets up to drive inclined plane up, wears to be equipped with the drive shaft 20 of liftable in the driving groove, and drive shaft 20 cooperatees the drive with the driving inclined plane and goes up ejector pad 25, well ejector pad 27 and ejector pad 28 and move outwards, be equipped with the mounting groove on the inner up end of ejector pad 25, be equipped with the floating block 29 that can reciprocate in the mounting groove, be equipped with second elastic component 30 between floating block 29 and the mounting groove, second elastic component 30 is the spring that pushes away in advance: the internal rotation of valve gap 5 is equipped with the change-over cover 8, 8 covers of change-over cover are established outside valve rod 4, be equipped with helicla flute 9 in the change-over cover 8, be equipped with lug 17 on the valve rod 4, lug 17 and helicla flute 9 transmission fit, lug 17 shifts up along with valve rod 4 and can drive the change-over cover 8 rotatory, the fixed well gear 7 that is equipped with of 8 lower extremes of change-over cover, the threaded connection in drive shaft 20 upper end has axle sleeve 22, axle sleeve 22 rotates and sets up on valve gap 5, and the fixed side gear 23 that is equipped with on the axle sleeve 22, side gear 23 meshes with well gear 7 mutually, still be equipped with drive shaft 20 on the valve gap 5 and prevent changeing locating piece 21, preferably be equipped with axial bar.
The bottom plate 18 capable of moving up and down is arranged below the left valve seat 2 and the right valve seat 6 in a matched mode, the third elastic piece 19 is arranged between the bottom plate 18 and the valve body 1, the bottom plate 18 is abutted to the lower end of the lower pushing block 28 under the action of the third elastic piece 19, the third elastic piece 19 is a butterfly spring, and the bottom plate 18 is arranged to prevent slurry media from being retained below the left valve seat 6 and the right valve seat 6 and prevent the flashboard 3 from being damaged.
The driving part comprises a support 13, a hand wheel 15, a threaded sleeve 14 and a dustproof cover 16, the support 13 is provided with the upper end of a valve cover 5, the threaded sleeve 14 is driven by the hand wheel 15 to rotate in the support 13, the threaded sleeve 14 is connected with the valve rod 4 in a threaded manner and sleeved on the valve rod 4 to drive the valve rod 4 to move up and down, the dustproof cover 16 is covered on the support 13 to prevent dust from entering between the valve rod 4 and the threaded sleeve 14.
The upper end of the valve cover 5 is provided with a packing groove, the packing groove is internally provided with a packing 12 and a fixing block 11, the packing 12 is attached to the valve rod 4, the fixing block 11 is positioned outside the packing 12, the lower end of the fixing block 11 is provided with a bearing 10, the bearing 10 abuts against the upper end of the conversion sleeve 8, the valve cover 5 is provided with a limiting step for preventing the conversion sleeve 8 from moving downwards, and the corresponding conversion sleeve 8 is provided with a boss matched with the limiting step.
And inward movement limiting structures are respectively arranged between the lower push block 28 and the valve body 1, between the middle push block 27 and the lower push block 28 and between the upper push block 25 and the lower push block 28, and the inward movement limiting structures are positive and negative steps which are matched with each other and used for limiting the lower push block 28, the middle push block 27 and the upper push block 25 from excessively inward movement.
Brief opening procedure of the invention: when the hand wheel 15 is rotated to drive the valve rod 4 to ascend, and the valve rod 4 ascends to drive the flashboard 3 to ascend, the convex block 17 is matched with the spiral groove 9 to drive the conversion sleeve 8 to rotate, the conversion sleeve 8 drives the main gear to rotate, the main gear drives the side gear 23 to rotate, the side gear 23 drives the shaft sleeve 22 to rotate, the shaft sleeve 22 drives the guide shaft connected with the thread to ascend, when the shutter plate 3 rises to a position where the lower end surface is higher than the upper end surface of the lower push block 28, the lower push block 28 moves inward by the first elastic member, when the lower end surface of the shutter plate 3 is higher than the upper end surface of the middle push block 27, the middle push block 27 moves inward under the action of the first elastic member, when the lower end surface of the gate plate 3 is flat with the upper end surface of the floating block 29, the push-up block 25 moves inwards under the action of the first elastic piece, at the moment, the lower end surface of the guide shaft is arranged at the high end of the driving inclined surface of the driving groove of the push-up block 25, and the lower end surface of the gate plate 3 presses the upper end surface of the floating block 29.
Brief shutdown procedure: when the gate plate 3 moves downwards, firstly, the lower end face of the gate plate 3 pushes the floating block 29 downwards, meanwhile, under the transmission of the middle gear 7, the side gear 23 and the shaft sleeve 22, the guide shaft synchronously moves downwards and drives the upper pushing block 25 to move outwards, when the upper end face of the floating block 29 is completely separated from the lower end face of the gate plate 3, the inner end face of the upper pushing block 25 presses two side faces of the gate plate 3, the upper pushing block 25 stops moving outwards, the gate plate 3 continues to move downwards and drives the guide shaft to move downwards and drive the middle pushing block 27 to move outwards, and in turn, in the process of moving downwards of the gate plate 3, the guide shaft drives the lower pushing block 28 to move outwards, so that the gate plate 3 is closed downwards, at the moment, the inner end faces of the upper pushing block 25, the middle pushing block 27 and the lower pushing block 28 respectively press two side faces of the gate plate 3, and.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an oil field pipeline plate valve, is equipped with the runner including valve body and valve gap in the valve body, is equipped with left disk seat and right disk seat in the runner, and the valve gap lid is established in the valve body upper end, wears to be equipped with the valve rod of liftable on the valve gap, and the valve rod upper end is equipped with driver part, and the valve rod lower extreme is equipped with the flashboard, flashboard and left disk seat, the sealed cooperation of right disk seat, its characterized in that: be equipped with the installation cavity on the valve body that the runner both sides correspond respectively, be equipped with the last ejector pad of arranging in proper order from top to bottom in the installation cavity, well ejector pad and lower ejector pad, go up the ejector pad, side position between business turn over left disk seat and the right disk seat is removed respectively to well ejector pad and lower ejector pad about can, and go up the ejector pad, be equipped with first elastic component between the outside of well ejector pad and lower ejector pad and the valve body respectively, go up the ejector pad, be equipped with the driving groove on well ejector pad and the lower ejector pad respectively, the outside inner wall of driving groove sets up to drive inclined plane up, wear to be equipped with the drive shaft of liftable in the driving groove, the drive shaft cooperatees with the drive inclined plane, be equipped with the mounting groove on the inner up end of ejector pad, be equipped with the kicking block that can reciprocate in the mounting: the valve comprises a valve cover, a valve rod, a transition sleeve, a middle gear, a shaft sleeve, a side gear, a drive shaft, a spiral groove, a convex block, a middle gear, a drive shaft, a shaft sleeve and a drive shaft anti-rotation positioning block, wherein the transition sleeve is arranged in the valve cover in a rotating mode, the spiral groove is formed in the transition sleeve, the convex block is arranged on the valve rod and is in transmission fit with the spiral groove, the middle gear is fixedly arranged at the lower end of the transition sleeve, the shaft sleeve is in threaded connection.
2. The oilfield tubular plate gate valve of claim 1, wherein: the lower position between the left valve seat and the right valve seat is provided with a bottom plate which can move up and down in a matching way, a third elastic piece is arranged between the bottom plate and the valve body, and the bottom plate is abutted against the lower end of the lower push block under the action of the third elastic piece.
3. The oilfield tubular plate gate valve of claim 1, wherein: the driving part comprises a support, a hand wheel, a threaded sleeve and a dustproof cover, the support is arranged at the upper end of the valve cover, the threaded sleeve is rotatably arranged in the support by the hand wheel, the threaded sleeve of the threaded sleeve is arranged on the valve rod, and the dustproof cover is arranged at the upper end of the support.
4. The oilfield tubular plate gate valve of claim 1, wherein: the upper end of the valve cover is provided with a packing groove, packing and a fixing block are arranged in the packing groove, the packing is attached to the valve rod, the fixing block is located on the outer side of the packing, the lower end of the fixing block is provided with a bearing, the bearing is abutted to the upper end of the conversion sleeve, the valve cover is provided with a limiting step for preventing the conversion sleeve from moving downwards, and a boss matched with the limiting step is arranged on the corresponding conversion sleeve.
5. The oilfield tubular plate gate valve of claim 1, wherein: and inward movement limiting structures are respectively arranged between the lower push block and the valve body, between the middle push block and the lower push block and between the upper push block and the lower push block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287809.6A CN111006031B (en) | 2019-12-15 | 2019-12-15 | Flat gate valve for oilfield pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287809.6A CN111006031B (en) | 2019-12-15 | 2019-12-15 | Flat gate valve for oilfield pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111006031A true CN111006031A (en) | 2020-04-14 |
| CN111006031B CN111006031B (en) | 2021-07-16 |
Family
ID=70115290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911287809.6A Active CN111006031B (en) | 2019-12-15 | 2019-12-15 | Flat gate valve for oilfield pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111006031B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163110A (en) * | 2018-09-26 | 2019-01-08 | 英诺威阀业有限公司 | Two way seal gate valve and its application method |
| CN111895162A (en) * | 2020-08-14 | 2020-11-06 | 蓝晶晶 | Flat gate valve for oil field |
| CN111981149A (en) * | 2020-08-26 | 2020-11-24 | 立信阀门集团有限公司 | Knife-shaped gate valve |
| CN113324094A (en) * | 2021-07-01 | 2021-08-31 | 郑子叶 | Flat gate valve for oil field |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3478771A (en) * | 1967-09-15 | 1969-11-18 | Amca Pharm Lab Ltd | Sectional body gate valve with seat scraping means |
| CN2151324Y (en) * | 1993-03-13 | 1993-12-29 | 张锡树 | Sluice valve |
| CN204420153U (en) * | 2015-01-30 | 2015-06-24 | 江苏恒鑫石化机械有限公司 | A kind of mud gate valve for oil well mud circulating system |
| CN108533772A (en) * | 2018-06-19 | 2018-09-14 | 保集团有限公司 | A kind of flat gate valve adjusted with multiple-channel output |
| CN109163110A (en) * | 2018-09-26 | 2019-01-08 | 英诺威阀业有限公司 | Two way seal gate valve and its application method |
| CN208907502U (en) * | 2018-08-30 | 2019-05-28 | 天津联工阀门有限公司 | A kind of Novel regulating valve valve actuator |
| CN110469713A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of adjustable type shut-off valve |
-
2019
- 2019-12-15 CN CN201911287809.6A patent/CN111006031B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3478771A (en) * | 1967-09-15 | 1969-11-18 | Amca Pharm Lab Ltd | Sectional body gate valve with seat scraping means |
| CN2151324Y (en) * | 1993-03-13 | 1993-12-29 | 张锡树 | Sluice valve |
| CN204420153U (en) * | 2015-01-30 | 2015-06-24 | 江苏恒鑫石化机械有限公司 | A kind of mud gate valve for oil well mud circulating system |
| CN108533772A (en) * | 2018-06-19 | 2018-09-14 | 保集团有限公司 | A kind of flat gate valve adjusted with multiple-channel output |
| CN208907502U (en) * | 2018-08-30 | 2019-05-28 | 天津联工阀门有限公司 | A kind of Novel regulating valve valve actuator |
| CN109163110A (en) * | 2018-09-26 | 2019-01-08 | 英诺威阀业有限公司 | Two way seal gate valve and its application method |
| CN110469713A (en) * | 2019-09-01 | 2019-11-19 | 永嘉企达知识产权咨询有限公司 | A kind of adjustable type shut-off valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163110A (en) * | 2018-09-26 | 2019-01-08 | 英诺威阀业有限公司 | Two way seal gate valve and its application method |
| CN111895162A (en) * | 2020-08-14 | 2020-11-06 | 蓝晶晶 | Flat gate valve for oil field |
| CN111895162B (en) * | 2020-08-14 | 2022-04-26 | 浙江冠正阀门股份有限公司 | Flat gate valve for oil field |
| CN111981149A (en) * | 2020-08-26 | 2020-11-24 | 立信阀门集团有限公司 | Knife-shaped gate valve |
| CN111981149B (en) * | 2020-08-26 | 2021-12-24 | 立信阀门集团有限公司 | Knife-shaped gate valve |
| CN113324094A (en) * | 2021-07-01 | 2021-08-31 | 郑子叶 | Flat gate valve for oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111006031B (en) | 2021-07-16 |
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Inventor after: Request for anonymity Inventor before: Zhou Yongshu |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210628 Address after: 325100 Baoyi village, Dongou street, Yongjia County, Wenzhou City, Zhejiang Province Applicant after: Wenzhou Dahe Valve Co.,Ltd. Address before: No.63, Maidao North Road, Maidao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province Applicant before: Yongjia Qida Intellectual Property Consulting Co.,Ltd. |
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