CN109812244A - A kind of well head pressure break gate valve - Google Patents
A kind of well head pressure break gate valve Download PDFInfo
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- CN109812244A CN109812244A CN201910151841.5A CN201910151841A CN109812244A CN 109812244 A CN109812244 A CN 109812244A CN 201910151841 A CN201910151841 A CN 201910151841A CN 109812244 A CN109812244 A CN 109812244A
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Abstract
The invention discloses a kind of well head pressure break gate valves, including handwheel, adjustment barrel, valve body, pollutant discharge tube, scrape husky device, valve plate, filter device, the side wall of the valve body is equipped with adjustment barrel and pollutant discharge tube, the adjustment barrel is oppositely arranged with pollutant discharge tube, the valve plate is set in valve body, the lower end of the handwheel is connected with valve rod, the valve rod is connect by connecting screw with valve plate, the inner wall of the valve body scrapes husky device equipped with what is connect with valve plate, the two sides scraped husky device and be set to valve plate, the pollutant discharge tube is interior to be equipped with filter device.Husky device is scraped equipped with what is connect with valve plate on the inner wall of valve body; the sand being stained on valve plate can be struck off; prevent sand from entering among the glade plane space of valve plate; it can not only guarantee the smooth of gate valve opening and closing, while can prevent sand from wearing valve plate, protect equipment; filter device is equipped in the pollutant discharge tube; preliminary filtering and removing can be carried out to sand, it is easy to use, protect valve body.
Description
Technical field
The present invention relates to wellhead sluice valve technical field, specially a kind of well head pressure break gate valve.
Background technique
With the growth to energy demand, well head fracturing technique is more and more used.Well head fracturing technique can make well
Mouth yield increases considerably.When well head pressure break, a large amount of grains of sand are had in medium, in the big environment in silt content river, often
There is sand and enter valve plate gap, when opening and closing valve plate, opposite sliding, sand will lead to valve after entering gap between valve plate and valve body
Plate opening and closing is difficult, results even in sealing performance decline, reduces gate valve and uses the hand service life.
Summary of the invention
The present invention provides a kind of well head pressure break gate valve, in valve body aiming at deficiencies of the prior art
Inner wall is equipped with the husky device of scraping connecting with valve plate, and the two sides scraped husky device and be set to valve plate can be to the sand being stained on valve plate
Son is struck off, and prevents sand from entering among the glade plane space of valve plate, can not only guarantee the smooth of gate valve opening and closing, while can
Prevent sand from wearing valve plate, protect equipment, filter device is equipped in the pollutant discharge tube, sand can be carried out preliminary filtering with
It removes, it is easy to use, protect valve body.
To achieve the above object, invention provides the following technical solutions:
A kind of well head pressure break gate valve, including handwheel, adjustment barrel, valve body, pollutant discharge tube, scrape husky device, valve plate, filter device, institute
The side wall for stating valve body is equipped with adjustment barrel and pollutant discharge tube, and the adjustment barrel is oppositely arranged with pollutant discharge tube, and the valve plate is set to valve body
Interior, the lower end of the handwheel is connected with valve rod, and the valve rod is connect by connecting screw with valve plate, and the inner wall of the valve body is equipped with
What is connect with valve plate scrapes husky device, and the two sides scraped husky device and be set to valve plate, the pollutant discharge tube is interior to be equipped with filter device.
Preferably, the lower end of the valve rod is equipped with reception hole, and the connecting screw is threadedly engaged with reception hole, the valve plate
Upper end be equipped with connecting hole, the lower end of the connecting screw is equipped with link block, and the link block and connecting hole cooperate.
Preferably, lift span is equipped in the adjustment barrel, the connecting screw and valve rod are set in lift span, the liter
The upper end for dropping hole is equipped with segmentation ring, and the lower end of the valve rod is cased with bearing, and the lower end of the bearing is pressed on segmentation ring, and described point
The upper end for cutting ring is equipped with airtight and watertight padding, and the upper end of the airtight and watertight padding is pressed with upper press ring, and the upper end of adjustment barrel is equipped with upper cover, institute
The upper end for stating cover and adjustment barrel is bolted, and the edge of the upper cover is equipped with button side, the inner wall and tune on the button side
The outer wall connection of cylinder is saved, the upper end of the upper press ring is connect with the lower end surface of upper cover.
Preferably, the inner wall of the valve body is equipped with mounting groove, described to scrape husky device in mounting groove, described to scrape husky dress
It sets including guide rod, the first spring, scraping block, one end of the guide rod and the inner wall of mounting groove connect, the side of the scraping block
Equipped with sets of holes, the sets of holes and guide rod cooperate, and the other side of scraping block and valve plate connect, and are cased with first on the guide rod
Spring, one end of first spring and the inner wall of mounting groove connect, and another point of the first spring is connect with scraping block.
Preferably, the both ends of the scraping block are arcuate structure, and the lower end surface of scraping block is obliquely installed, and the scraping block connects with valve plate
The one side of touching is equipped with seal groove, is equipped with sealing strip in the seal groove, the sealing strip is at least provided with three.
Preferably, the inner wall of the valve body is equipped with fixing groove, and one end of the filter device and fixing groove cooperate, described
The end of pollutant discharge tube is equipped with lower cover, and filter device is pressed by lower cover and fixed.
Preferably, the filter device includes the first filter plate, the second filter plate, and first filter plate and second are filtered
Plate is arranged in parallel, the first filter plate be equipped with the first filter hole, second filter plate be equipped with the second filter hole, described first
The edge of filter plate is equipped with the first sealing frame, is equipped with the first sealing joint strip, second mistake around first sealing frame
The edge of filter plate is equipped with the second sealing frame, and the second sealing joint strip, first sealing are equipped with around second sealing frame
It is connected between frame and the second sealing frame by connecting rod.
Preferably, the diameter dimension of first filter hole is greater than the diameter dimension of the second filter hole.
Preferably, sealing ring, the inner wall connection of the sealing ring and pollutant discharge tube, the sealing ring are equipped in the pollutant discharge tube
Lower end be equipped with lower pressure ring, the lower end of the lower pressure ring is connect with lower cover.
Preferably, the inner wall of the valve body is equipped with inverted draw cut, and sealing jacking block is equipped in the inverted draw cut, the sealing jacking block
Upper end is equipped with sealing plate, and the sealing plate is the arc structure of evagination, and the surrounding of sealing plate is connect with sealing jacking block, sealing plate and
It seals and is equipped with deformation chamber between jacking block, the deformation is intracavitary to be equipped with extension sleeve, the lower end of the extension sleeve and sealing jacking block
Upper end connection, second spring is equipped in the extension sleeve, the upper end of the extension sleeve is cased with telescopic mast, the telescopic mast
Upper end be equipped with top plate, the lower end surface of the top plate and sealing plate connects.
Compared with prior art, advantageous effect of the invention is:
1, the present invention is equipped with the husky device of scraping connecting with valve plate, two for scraping husky device and being set to valve plate on the inner wall of valve body
Side can strike off the sand being stained on valve plate, prevent sand from entering among the glade plane space of valve plate, can not only guarantee lock
Valve opens and closes smooth, while can prevent sand from wearing valve plate, protects equipment, is equipped with filter device in the pollutant discharge tube, can
Preliminary filtering and removing are carried out to sand, it is easy to use, protect valve body.
2, the lower end of valve rod of the present invention is equipped with reception hole, and the connecting screw is threadedly engaged with reception hole, used
The height of Cheng Zhong, handwheel will not change with using, and can save space, increase the convenience used.
3, the lower end of valve rod of the invention is cased with bearing, can reduce frictional force when valve rod rotation, under the bearing
For side pressure on segmentation ring, the upper end of the segmentation ring is equipped with airtight and watertight padding, improves sealing performance, prevents introduced contaminants from entering.
4, the inner wall of one end of guide rod of the invention and mounting groove connects, and the side of scraping block is equipped with sets of holes, the sets of holes
Cooperate with guide rod, is cased with the first spring on guide rod, scraping block can be pressed in automatically on valve plate side wall by the first spring, it is real
Existing automatic scraping sand function, it is easy to use.
5, the present invention is equipped with seal groove in the one side that scraping block is contacted with valve plate, sealing strip is equipped in the seal groove, in reality
It can guarantee leakproofness between the two while now scraping sand, increase the reliability used.
6, two filter plates of present invention setting, the first filter plate are arranged in parallel with the second filter plate, on the one hand can increase
On the other hand filter effect can be realized the collection to sand, convenient for excluding.
7, sealing jacking block is equipped in inverted draw cut of the invention, the upper end of the sealing jacking block is equipped with sealing plate, sealing plate and valve
Contact can deformation occurs for plate, improves sealing performance, and telescopic mast withstands sealing plate upwards, can be improved contact force between the two
Degree makes sealing relatively reliable, while can allow the shape self-return of sealing plate.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is cross-sectional view of the invention；
Fig. 3 is enlarged drawing at the A of Fig. 2；
Fig. 4 is the structural schematic diagram for sealing jacking block；
Fig. 5 is the structural schematic diagram one of scraping block；
Fig. 6 is the structural schematic diagram two of scraping block；
Fig. 7 is the structural schematic diagram of filter device.
In figure: 1- handwheel；101- valve rod；102- reception hole；2- adjustment barrel；The upper cover of 201-；202- detains side；It is pressed on 203-
Ring；204- airtight and watertight padding；205- bearing；206- divides ring；207- lift span；3- valve body；301- fixing groove；302- mounting groove；
303- inverted draw cut；4- pollutant discharge tube；Cover under 401-；Pressure ring under 402-；403- sealing ring；5- connecting screw；501- link block；6- is scraped
Husky device；601- guide rod；The first spring of 602-；603- scraping block；604- sets of holes；605- sealing strip；606- seal groove；7- valve
Plate；701- connecting hole；8- seals jacking block；801- sealing plate；802- deformation chamber；803- top plate；804- telescopic mast；805- telescopic
Cylinder；806- second spring；9- filter device the first sealing joint strip of 901-；The first sealing frame of 902-；The first filter plate of 903-；904-
First filter hole；905- connecting rod；The second sealing joint strip of 906-；The second sealing frame of 907-；The second filter hole of 908-；909- second
Filter plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in figs. 1-7, a kind of well head pressure break gate valve, including handwheel 1, adjustment barrel 2, valve body 3, pollutant discharge tube 4, scrape husky dress
6, valve plate 7, filter device 9 are set, the side wall of the valve body 3 is equipped with adjustment barrel 2 and pollutant discharge tube 4, the adjustment barrel 2 and pollutant discharge tube
4 are oppositely arranged, and the valve plate 7 is set in valve body 3, and the lower end of the handwheel 1 is connected with valve rod 101, and the valve rod 101 passes through connection
Screw rod 5 is connect with valve plate 7, and the inner wall of the valve body 3 is equipped with the husky device 6 of scraping connecting with valve plate 7, described to scrape husky device 6 and set
In the two sides of valve plate 7, the pollutant discharge tube 4 is interior to be equipped with filter device 9.
The lower end of the valve rod 101 is equipped with reception hole 102, and the connecting screw 5 is threadedly engaged with reception hole 102, uses
In the process, the height of handwheel 1 will not change with using, and can save space, increase the convenience used.The valve
The upper end of plate 7 is equipped with connecting hole 701, and the lower end of the connecting screw 5 is equipped with link block 501, the link block 501 and connecting hole
701 cooperations.
Lift span 207 is equipped in the adjustment barrel 2, the connecting screw 5 is set in lift span 207 with valve rod 101, institute
The upper end for stating lift span 207 is equipped with segmentation ring 206, and the lower end of the valve rod 101 is cased with bearing 205, the lower end of the bearing 205
It is pressed on segmentation ring 206, the upper end of the segmentation ring 206 is equipped with airtight and watertight padding 204, and the upper end of the airtight and watertight padding 204 is pressed with
The upper end of upper press ring 203, adjustment barrel 2 is equipped with upper cover 201, and the upper cover 201 and the upper end of adjustment barrel 2 are bolted, institute
The edge for stating cover 201 is equipped with button side 202, and the inner wall on the button side 202 is connect with the outer wall of adjustment barrel 2, the upper pressure
The upper end of ring 2023 is connect with the lower end surface of upper cover 201.
The inner wall of the valve body 3 is equipped with mounting groove 302, described to scrape husky device 6 in mounting groove 302, described to scrape sand
Device 6 includes guide rod 601, the first spring 602, scraping block 603, and one end of the guide rod 601 and the inner wall of mounting groove 302 connect
Connect, the side of the scraping block 603 is equipped with sets of holes 604, and the sets of holes 604 cooperate with guide rod 601, the other side of scraping block 603 with
Valve plate 7 connects, and the first spring 602, one end of first spring 602 and mounting groove 302 are cased on the guide rod 601
Inner wall connection, another point of the first spring 602 connect with scraping block 603.
One end of guide rod 601 is connect with the inner wall of mounting groove 302, and the side of scraping block 603 is equipped with sets of holes 604, the set
Hole 604 and guide rod 601 cooperate, and are cased with the first spring 602 on guide rod 601, can be automatic by scraping block by the first spring 602
It is pressed on valve plate side wall, realizes automatic scraping sand function, it is easy to use.
The both ends of the scraping block 603 are arcuate structure, and the lower end surface of scraping block 603 is obliquely installed, the scraping block 603 and valve plate
The one sides of 7 contacts are equipped with seal groove 606, are equipped with sealing strip 605 in the seal groove 606, and the sealing strip 605 is at least provided with three
Root is realizing the leakproofness that can guarantee while scraping sand between the two, is increasing the reliability used.
The inner wall of the valve body 3 is equipped with fixing groove 301, and one end of the filter device 9 and fixing groove 301 cooperate, institute
The end for stating pollutant discharge tube 4 is equipped with lower cover 401, and filter device 9 is pressed by lower cover 401 and fixed.
The filter device 9 includes the first filter plate 903, the second filter plate 909, first filter plate 903 and second
Filter plate 909 is arranged in parallel, and the first filter plate 903 is equipped with the first filter hole 904, and second filter plate 909 is equipped with the
The edge of two filter hole 908, first filter plate 903 is equipped with the first sealing frame 902, the week of first sealing frame 902
It encloses and is equipped with the first sealing joint strip 901, the edge of second filter plate 909 is equipped with the second sealing frame 907, second sealing
It is equipped with the second sealing joint strip 906 around frame 907, passes through connecting rod between first sealing frame 902 and the second sealing frame 907
905 connections.
The diameter dimension of first filter hole 904 is greater than the diameter dimension of the second filter hole 908.
It is equipped with sealing ring 403 in the pollutant discharge tube 4, the sealing ring 403 is connect with the inner wall of pollutant discharge tube 4, the sealing
The lower end of circle 403 is equipped with lower pressure ring 402, and the lower end of the lower pressure ring 402 is connect with lower cover 401.
The inner wall of the valve body 3 is equipped with inverted draw cut 303, and sealing jacking block 8, the sealing jacking block 8 are equipped in the inverted draw cut 303
Upper end be equipped with sealing plate 801, the sealing plate 801 is the arc structure of evagination, the surrounding of sealing plate 801 and sealing jacking block 8
Connection is equipped with deformation chamber 802, is equipped with extension sleeve 805, institute in the deformation chamber 802 between sealing plate 801 and sealing jacking block 8
The lower end for stating extension sleeve 805 is connect with the upper end of sealing jacking block 8, is equipped with second spring 806, institute in the extension sleeve 805
The upper end for stating extension sleeve 805 is cased with telescopic mast 804, and the upper end of the telescopic mast 804 is equipped with top plate 803, the top plate 803 with
The lower end surface of sealing plate 801 connects.
Sealing jacking block 8 is equipped in inverted draw cut 303, the upper end of the sealing jacking block 8 is equipped with sealing plate 801, sealing plate 801 and valve
Contact can deformation occurs for plate, improves sealing performance, and telescopic mast 804 withstands sealing plate upwards, can be improved connecing between the two
Touch degree makes sealing relatively reliable, while can allow the shape self-return of sealing plate.
In use, realizing the lifting of valve plate 7 by rotation handwheel 1, for valve plate 7 in lifting process, scraping block 602 is pressed in valve plate
The sand on 7 surface of valve plate is hung by 7 surface, and use is relatively reliable, and cover 401 under opening when carrying out cleaning sand takes
Sand is cleaned up and is reinstalled by filter device out.Husky device is scraped equipped with what is connect with valve plate 7 on the inner wall of valve body 3
6, the two sides scraped husky device 6 and be set to valve plate 7 can strike off the sand being stained on valve plate 7, prevent sand from entering valve plate
Glade plane space among, can not only guarantee gate valve opening and closing it is smooth, while can prevent sand wear valve plate, protect equipment,
It is equipped with filter device 9 in the pollutant discharge tube 4, preliminary filtering and removing can be carried out to sand, it is easy to use, protect valve body.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of well head pressure break gate valve, it is characterised in that: including handwheel (1), adjustment barrel (2), valve body (3), pollutant discharge tube (4),
Husky device (6), valve plate (7), filter device (9) are scraped, the side wall of the valve body (3) is equipped with adjustment barrel (2) and pollutant discharge tube (4),
The adjustment barrel (2) is oppositely arranged with pollutant discharge tube (4), and the valve plate (7) is set in valve body (3), and the lower end of the handwheel (1) connects
Have valve rod (101), the valve rod (101) is connect by connecting screw (5) with valve plate (7), and the inner wall of the valve body (3) is equipped with
What is connect with valve plate (7) scrapes husky device (6), the two sides scraped husky device (6) and be set to valve plate (7), sets in the pollutant discharge tube (4)
There are filter device (9).
2. a kind of well head pressure break gate valve as described in claim 1, it is characterised in that: the lower end of the valve rod (101) is equipped with
Reception hole (102), the connecting screw (5) are threadedly engaged with reception hole (102), and the upper end of the valve plate (7) is equipped with connecting hole
(701), the lower end of the connecting screw (5) is equipped with link block (501), and the link block (501) and connecting hole (701) cooperate.
3. a kind of well head pressure break gate valve as described in claim 1, it is characterised in that: be equipped with lifting in the adjustment barrel (2)
Hole (207), the connecting screw (5) and valve rod (101) are set in lift span (207), and the upper end of the lift span (207) is set
Have segmentation ring (206), the lower end of the valve rod (101) is cased with bearing (205), and the lower end of the bearing (205) is pressed in segmentation ring
(206) on, the upper end of segmentation ring (206) is equipped with airtight and watertight padding (204), and the upper end of the airtight and watertight padding (204) is pressed with
The upper end of pressure ring (203), adjustment barrel (2) is equipped with upper cover (201), the upper end bolt of the upper cover (201) and adjustment barrel (2)
Connection, the edge of the upper cover (201) are equipped with button side (202), and the inner wall for detaining side (202) is outer with adjustment barrel (2)
Wall connection, the upper end of the upper press ring (203) is connect with the lower end surface of upper cover (201).
4. a kind of well head pressure break gate valve as described in claim 1, it is characterised in that: the inner wall of the valve body (3) is equipped with
Mounting groove (302), described scrape husky device (6) in mounting groove (302), it is described scrape husky device (6) include guide rod (601),
One end of first spring (602), scraping block (603), the guide rod (601) is connect with the inner wall of mounting groove (302), the scraping block
(603) side is equipped with sets of holes (604), and the sets of holes (604) and guide rod (601) cooperate, the other side of scraping block (603) and valve
Plate (7) connects, and is cased with the first spring (602) on the guide rod (601), one end of first spring (602) and peace
The inner wall of tankage (302) connects, and another point of the first spring (602) is connect with scraping block (603).
5. a kind of well head pressure break gate valve as claimed in claim 4, it is characterised in that: the both ends of the scraping block (603) are arc
The lower end surface of shape structure, scraping block (603) is obliquely installed, and the one side that the scraping block (603) contacts with valve plate (7) is equipped with seal groove
(606), sealing strip (605) are equipped in the seal groove (606), the sealing strip (605) is at least provided with three.
6. a kind of well head pressure break gate valve as described in claim 1, it is characterised in that: the inner wall of the valve body (3) is equipped with
Fixing groove (301), one end and fixing groove (301) of the filter device (9) cooperate, and the end of the pollutant discharge tube (4) is equipped with down
Cover (401), filter device (9) are pressed by lower cover (401) and are fixed.
7. a kind of well head pressure break gate valve as claimed in claim 6, it is characterised in that: the filter device (9) includes first
Filter plate (903), the second filter plate (909), first filter plate (903) are arranged in parallel with the second filter plate (909), and first
Filter plate (903) is equipped with the first filter hole (904), and second filter plate (909) is equipped with the second filter hole (908), institute
The edge for stating the first filter plate (903) is equipped with the first sealing frame 902, is equipped with first around first sealing frame (902)
The edge of sealing joint strip (901), second filter plate (909) is equipped with the second sealing frame 907, second sealing frame
(907) the second sealing joint strip (906) are equipped with around, are passed through between first sealing frame (902) and the second sealing frame (907)
Connecting rod (905) connection.
8. a kind of well head pressure break gate valve as claimed in claim 7, it is characterised in that: first filter hole (904) it is straight
Diameter size is greater than the diameter dimension of the second filter hole (908).
9. a kind of well head pressure break gate valve as claimed in claim 6, it is characterised in that: be equipped with sealing in the pollutant discharge tube (4)
It encloses (403), the sealing ring (403) connect with the inner wall of pollutant discharge tube (4), and the lower end of the sealing ring (403) is equipped with lower pressure ring
(402), the lower end of the lower pressure ring (402) is connect with lower cover (401).
10. a kind of well head pressure break gate valve as described in claim 1, it is characterised in that: the inner wall of the valve body (3) is equipped with
Inverted draw cut (303), the inverted draw cut (303) is interior to be equipped with sealing jacking block (8), and the upper end of sealing jacking block (8) is equipped with sealing plate
(801), the sealing plate (801) is the arc structure of evagination, and the surrounding of sealing plate (801) connect with sealing jacking block (8), seals
Deformation chamber (802) are equipped between plate (801) and sealing jacking block (8), are equipped with extension sleeve (805) in the deformation chamber (802), institute
The lower end for stating extension sleeve (805) is connect with the upper end of sealing jacking block (8), and second spring is equipped in the extension sleeve (805)
(806), the upper end of the extension sleeve (805) is cased with telescopic mast (804), and the upper end of the telescopic mast (804) is equipped with top plate
803, the top plate (803) connect with the lower end surface of sealing plate (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151841.5A CN109812244A (en) | 2019-02-28 | 2019-02-28 | A kind of well head pressure break gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151841.5A CN109812244A (en) | 2019-02-28 | 2019-02-28 | A kind of well head pressure break gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109812244A true CN109812244A (en) | 2019-05-28 |
Family
ID=66607729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910151841.5A Pending CN109812244A (en) | 2019-02-28 | 2019-02-28 | A kind of well head pressure break gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431520A (en) * | 2021-07-29 | 2021-09-24 | 万秋林 | Well head valve capable of taking out impurities in pipeline for oil exploitation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS479024U (en) * | 1971-02-20 | 1972-10-03 | ||
| CN2213895Y (en) * | 1994-09-23 | 1995-11-29 | 林松 | Plate type sluice valve |
| CN200968429Y (en) * | 2006-11-17 | 2007-10-31 | 姜日静 | Knife switch valve |
| CN201925504U (en) * | 2011-01-20 | 2011-08-10 | 阜宁县石油机械有限公司 | Square integrated-cover-type hand-operated rising-stem wedge-shaped gate valve |
| CN104315177A (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | Split type sluice valve with filter screens |
| RU169330U1 (en) * | 2016-04-11 | 2017-03-15 | Публичное акционерное общество "Татнефть" им. В.Д. Шашина | LATCH |
| CN208041190U (en) * | 2018-04-18 | 2018-11-02 | 安徽斯瑞尔阀门有限公司 | A kind of Magnetic sluice valve equipped with scraping blade |
-
2019
- 2019-02-28 CN CN201910151841.5A patent/CN109812244A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS479024U (en) * | 1971-02-20 | 1972-10-03 | ||
| CN2213895Y (en) * | 1994-09-23 | 1995-11-29 | 林松 | Plate type sluice valve |
| CN200968429Y (en) * | 2006-11-17 | 2007-10-31 | 姜日静 | Knife switch valve |
| CN201925504U (en) * | 2011-01-20 | 2011-08-10 | 阜宁县石油机械有限公司 | Square integrated-cover-type hand-operated rising-stem wedge-shaped gate valve |
| CN104315177A (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | Split type sluice valve with filter screens |
| RU169330U1 (en) * | 2016-04-11 | 2017-03-15 | Публичное акционерное общество "Татнефть" им. В.Д. Шашина | LATCH |
| CN208041190U (en) * | 2018-04-18 | 2018-11-02 | 安徽斯瑞尔阀门有限公司 | A kind of Magnetic sluice valve equipped with scraping blade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431520A (en) * | 2021-07-29 | 2021-09-24 | 万秋林 | Well head valve capable of taking out impurities in pipeline for oil exploitation |
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Application publication date: 20190528 |
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| RJ01 | Rejection of invention patent application after publication |