CN117780951A - Hydraulic control valve for hydraulic engineering - Google Patents

Hydraulic control valve for hydraulic engineering Download PDF

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Publication number
CN117780951A
CN117780951A CN202410217488.7A CN202410217488A CN117780951A CN 117780951 A CN117780951 A CN 117780951A CN 202410217488 A CN202410217488 A CN 202410217488A CN 117780951 A CN117780951 A CN 117780951A
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CN
China
Prior art keywords
hydraulic control
valve
hydraulic
pipeline
control valve
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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.)
Granted
Application number
CN202410217488.7A
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Chinese (zh)
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CN117780951B (en
Inventor
向东
姜旭民
冯东
唐文超
宋清林
焦乐辉
谭素雅
孙雪琦
李勇
牛景涛
卞俊威
张心怡
王璐璐
闫强
崔健
陈彤彤
袁久伟
高玉尚
任佳宁
王延钊
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Shandong Water Conservancy Geotechnical Engineering Co
Water Resources Research Institute of Shandong Province
Original Assignee
Shandong Water Conservancy Geotechnical Engineering Co
Water Resources Research Institute of Shandong Province
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Application filed by Shandong Water Conservancy Geotechnical Engineering Co, Water Resources Research Institute of Shandong Province filed Critical Shandong Water Conservancy Geotechnical Engineering Co
Priority to CN202410217488.7A priority Critical patent/CN117780951B/en
Publication of CN117780951A publication Critical patent/CN117780951A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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Abstract

The invention provides a hydraulic control valve for hydraulic engineering, which relates to the technical field of hydraulic engineering pipeline valves and comprises a valve body, a first hydraulic control assembly, a second hydraulic control assembly and a valve core mechanism, wherein a top end cover is arranged at the top of the valve body, a bottom end cover is arranged at the bottom of the valve body, a communication port is arranged in the valve body, the bottom of the communication port is provided with the first hydraulic control assembly, the top of the communication port is provided with the valve core mechanism, and a telescopic channel and a current-limiting baffle are arranged in the second hydraulic control assembly. This hydraulic control valve for hydraulic engineering realizes the regulation and control function of fluid unidirectional and bidirectional flow through first hydraulic control subassembly cooperation case mechanism, has reduced the fault rate also prolonged the life of case structure and first hydraulic control subassembly, and cooperates the second hydraulic control subassembly can regulate and control the maximum flow upper limit of the inside fluidic of valve, has enlarged application scope, and only can realize multistage restriction regulation and control effect through single oil circuit pipeline.

Description

Hydraulic control valve for hydraulic engineering
Technical Field
The invention relates to the technical field of hydraulic engineering pipeline valves, in particular to a hydraulic control valve for hydraulic engineering.
Background
A large number of pipeline structures can be built in the hydraulic engineering construction process, so that various valve components are also used on the pipeline, wherein the hydraulic control valve refers to a hydraulic transmission system or a component used for controlling the pressure, flow and direction of liquid in the hydraulic control system, and the hydraulic control system is connected into the valve through an oil pipeline, so that the control process of the valve is realized.
The pilot operated valve among the prior art can use valve core and valve rod structure in inside often, because have great pressure when the hydraulic oil is annotated, consequently very easily lead to producing the striking of great dynamics between valve rod and the case board, increased the fault rate, and the impact degree only decides through hydraulic control system, be difficult to provide effectual anticollision protection structure, on the other hand, in the conventional piston case structure, the inside flow size of valve can receive the influence of inside fluid pressure, and the method that adopts threaded rod structure restriction valve core's position can restrict the flow size, but can't provide bigger pressure adjustment scope with the help of hydraulic oil, therefore application scope is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the hydraulic control valve for the hydraulic engineering, so as to solve the problems in the background art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a hydraulic control valve for hydraulic engineering, includes the hydraulic control valve body, the hydraulic control valve body includes valve body, first hydraulic control subassembly, second hydraulic control subassembly and case mechanism, the top end cover is installed at the top of valve body, the bottom of valve body is provided with the bottom end cover, the inside of valve body is provided with the intercommunication mouth, first hydraulic control subassembly is installed to the bottom of intercommunication mouth, the top of intercommunication mouth is provided with case mechanism, the internally mounted of second hydraulic control subassembly has flexible passageway and current-limiting baffle, and the inside of flexible passageway is all embedded into to the one end of every current-limiting baffle, the other end of current-limiting baffle inserts in the internal piping of this hydraulic control valve, current-limiting baffle is provided with a plurality ofly, and every current-limiting baffle installs on the different high positions with the state that is parallel to each other.
Further, the both ends of valve body are provided with water inlet and outlet respectively, and connect through the intercommunication mouth between water inlet and the outlet, the bottom of first hydraulically controlled subassembly is provided with first oil inlet, the top of second hydraulically controlled subassembly is provided with the second oil inlet.
Furthermore, the water inlet and the water outlet are separated and disconnected through the valve core mechanism, and the first oil inlet and the second oil inlet are respectively connected with external hydraulic oil conveying equipment through independent pipelines.
Further, the first hydraulic control assembly comprises a top plate and an air bag, the air bag is fixedly arranged at the top of the top plate, a valve rod is connected in the middle of the top plate, a rubber pad is arranged at the top of the valve rod, and the valve rod is in butt joint with the valve core mechanism through the rubber pad.
Further, the side of gasbag is connected with the air current pipeline, the side of valve body is provided with the gas pocket, the end and the gas pocket of air current pipeline are connected, the centre of gasbag is hollow structure, and the valve rod upwards wears out from the centre of gasbag.
Further, the valve core mechanism comprises a valve core plate and a guide pipeline, a butt joint groove is formed in the middle of the bottom end of the valve core plate, lifting holes are formed in the side edges of the butt joint groove, a first spring is connected to the inner portion of each lifting hole, an inner convex ring is arranged on the inner wall of each communication port, the top of each inner convex ring is fixedly provided with the guide pipeline, and conical grooves are formed in the side edges of the guide pipeline.
Further, the bottom of first spring inserts the inside of direction pipeline, and the inside of lifting hole is inserted at the top of direction pipeline, the surface of bulge loop is pressed to the case board through the pulling of first spring, the valve rod is held up by the inside of butt joint groove through the rubber pad top.
Further, the second hydraulic control assembly comprises a flow limiting baffle plate and a telescopic channel, each flow limiting baffle plate is provided with an oil pipeline at one end of the top, a linkage pipeline is connected in the middle of the oil pipeline, and the tail end of the oil pipeline is connected with a second oil inlet.
Further, the internally mounted of flexible passageway has the second spring, the tip of second spring and the tip fixed connection of current-limiting baffle, and the tip side of current-limiting baffle is provided with spacing sand grip, peg graft draw-in groove has been seted up on the top side of awl groove.
Further, the tail end of the flow limiting baffle is aligned with the inserting clamping groove, a linkage clamping block is filled in the linkage pipeline, and a third spring is installed at the bottom of the linkage clamping block.
The invention has the beneficial effects that:
1. this hydraulic control valve for hydraulic engineering installs the second hydraulic control subassembly inside, can control the flow restriction baffle with outside hydraulic oil through the second oil inlet at top to carry out spacing blocking to case mechanism, play the restriction effect to the liquid, and also can not receive the influence that the inside rivers pressure variation of water inlet department produced after adjusting, and can realize multistage different current limiting effect through same oil feed pipeline, the flexibility is higher, produces the rigidity and blocks the applied environment that can be applicable to bigger water pressure with it.
2. The hydraulic control valve for the hydraulic engineering can regulate and control the state of the top valve core mechanism in the first hydraulic control assembly at the bottom, and can jack up the valve core mechanism by matching with the conical groove, so that the switching process of the valve in two use states of unidirectional circulation and bidirectional circulation is realized.
3. This hydraulic control valve for hydraulic engineering adds at the inside of first hydraulic control subassembly and is equipped with the gasbag structure, can avoid the valve rod to shift up fast after injecting hydraulic oil from first oil inlet through this gasbag structure to reduce first hydraulic control subassembly and case mechanism and produce the degree of collision, and then reduced the fault rate and also prolonged the life of case structure and first hydraulic control subassembly.
Drawings
FIG. 1 is a schematic diagram of the configuration of a hydraulic control valve for hydraulic engineering according to the present invention;
FIG. 2 is a side cross-sectional view of a hydraulic control valve for hydraulic engineering according to the present invention;
FIG. 3 is a schematic illustration of the connection of a first hydraulic control assembly and a valve core mechanism portion of the present invention;
FIG. 4 is an enlarged view of area A of FIG. 2;
FIG. 5 is a split view of a second hydraulic control assembly portion of the present invention;
FIG. 6 is an enlarged view of area B of FIG. 2;
in the figure: 1. a valve body; 2. a top end cap; 3. a bottom end cap; 4. a water inlet; 5. a water outlet; 6. a first oil inlet; 7. a second oil inlet; 8. air holes; 9. a first hydraulic control assembly; 10. a valve core mechanism; 11. a second hydraulic control assembly; 12. a top plate; 13. an air bag; 14. an air flow duct; 15. a valve stem; 16. a rubber pad; 17. a valve core plate; 18. a butt joint groove; 19. lifting holes; 20. a guide duct; 21. a first spring; 22. a communication port; 23. an inner convex ring; 24. a conical groove; 25. a plug-in clamping groove; 26. a flow restricting baffle; 27. a telescoping passage; 28. an oil delivery pipeline; 29. a linkage pipeline; 30. a linkage clamping block; 31. a third spring; 32. a second spring; 33. limit convex strips.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a hydraulic control valve for hydraulic engineering, includes the hydraulic control valve body, the hydraulic control valve body includes valve body 1, first hydraulic control subassembly 9, second hydraulic control subassembly 11 and case mechanism 10, top end cover 2 is installed at the top of valve body 1, the bottom of valve body 1 is provided with bottom end cover 3, the inside of valve body 1 is provided with intercommunication mouth 22, first hydraulic control subassembly 9 is installed to the bottom of intercommunication mouth 22, the top of intercommunication mouth 22 is provided with case mechanism 10, the internally mounted of second hydraulic control subassembly 11 has flexible passageway 27 and current-limiting baffle 26, and the inside of flexible passageway 27 is all embedded into to the one end of every current-limiting baffle 26, the other end of current-limiting baffle 26 inserts in the internal piping of this hydraulic control valve, current-limiting baffle 26 is provided with a plurality of, and every current-limiting baffle 26 installs on different high positions with the state each other, and this hydraulic control valve is installed in the inside of hydraulic engineering pipeline, controls the mechanism 10 of homoenergetic through first hydraulic control subassembly 9 to the inboard to with mechanism 10, thereby can realize that the mechanism 10 opens the back and can realize that the valve core 10 can flow through the first hydraulic control subassembly and the two-way flow control subassembly 10 and the two-way flow control effect when the valve core 10 is in the state that the two-way flow control valve core 10 is in the state of the two-way through the top side flow control subassembly 10 has been realized, and the two-way flow control valve core mechanism 10 has been realized and the two-way flow control valve has realized the valve core 10 has realized the effect when the two-way flow control valve is in the valve and the valve is in the state of the side of the valve.
In this embodiment, the both ends of valve body 1 are provided with water inlet 4 and outlet 5 respectively, and are connected through intercommunication mouth 22 between water inlet 4 and the outlet 5, the bottom of first hydraulically controlled subassembly 9 is provided with first oil inlet 6, the top of second hydraulically controlled subassembly 11 is provided with second oil inlet 7, separate disconnection is carried out through case mechanism 10 between water inlet 4 and the outlet 5, first oil inlet 6 and second oil inlet 7 are connected with outside hydraulic oil conveying equipment through independent pipeline respectively, and specifically, this hydraulically controlled valve passes through the water inlet 4 at both ends. The water outlet 5 is directly connected with a pipeline system of hydraulic engineering, then flowing liquid can be conveyed in one direction or in two directions, the first hydraulic control assembly 9 is connected with external oil supply equipment through the first oil inlet 6 at the bottom, the second hydraulic control assembly 11 is connected with the external oil supply equipment through the second oil inlet 7 at the top, and the two hydraulic control assemblies realize control of functions of one direction, two directions and the upper limit of flow through the running sequence.
In this embodiment, the first hydraulic control assembly 9 includes roof 12 and gasbag 13, gasbag 13 fixed mounting is at the top of roof 12, the intermediate junction of roof 12 has valve rod 15, the top of valve rod 15 is provided with rubber pad 16, and valve rod 15 dock with case mechanism 10 through rubber pad 16, the side of gasbag 13 is connected with air current pipeline 14, the side of valve body 1 is provided with gas pocket 8, the end of air current pipeline 14 is connected with gas pocket 8, the centre of gasbag 13 is hollow structure, and valve rod 15 upwards wears out from the centre of gasbag 13. The air bag 13 structure is additionally arranged in the first hydraulic control assembly 9, the valve rod 15 is prevented from moving upwards rapidly after hydraulic oil is injected from the first oil inlet 6 through the air bag 13 structure, so that the collision degree between the first hydraulic control assembly 9 and the valve core mechanism 10 is reduced, the failure rate is further reduced, the service lives of the valve core structure and the first hydraulic control assembly 9 are prolonged, and particularly, when the valve is required to be switched from unidirectional flow to bidirectional flow, the outside hydraulic oil can be introduced into the lower part of the first hydraulic control assembly 9 through the first oil inlet 6, the whole second hydraulic control assembly 11 is lifted upwards by means of the thrust of the hydraulic oil, the bottom of the top plate 12 is pushed upwards at the moment, the valve rod 15 is driven to move upwards, the triggering process of the valve core mechanism 10 is realized, the top of the top plate 12 is influenced by the air bag 13, and air in the air bag 13 can be only slowly discharged through the air flow pipeline 14, so that the situation that the valve rod 15 moves upwards and collides with the bottom of the valve core mechanism 10 rapidly can be avoided.
In this embodiment, the valve core mechanism 10 includes a valve core plate 17 and a guide pipe 20, a butt joint groove 18 is formed in the middle of the bottom end of the valve core plate 17, a lifting hole 19 is formed in the side edge of the butt joint groove 18, a first spring 21 is connected to the inside of the lifting hole 19, an inner convex ring 23 is arranged on the inner wall of the communication port 22, the guide pipe 20 is fixedly mounted at the top of the inner convex ring 23, a tapered groove 24 is formed in the side edge of the guide pipe 20, the bottom of the first spring 21 is inserted into the guide pipe 20, the top of the guide pipe 20 is inserted into the inside of the lifting hole 19, the valve core plate 17 is pressed on the surface of the inner convex ring 23 through the pulling of the first spring 21, and the valve rod 15 abuts against the inside of the butt joint groove 18 through a rubber pad 16 at the top. In the first hydraulic control assembly 9 at the bottom, the state of the top valve core mechanism 10 can be regulated and controlled, and the valve core mechanism 10 can be jacked up by matching with the conical groove 24, so that the switching process of the valve in two use states of unidirectional circulation and bidirectional circulation is realized.
Specifically, when the rubber pad 16 at the top of the valve rod 15 is propped against the bottom of the valve core plate 17 through the control process of the first hydraulic control assembly 9, the valve core plate 17 can be moved upwards, the first spring 21 stretches, and at the moment, the bottom of the valve core plate 17 is separated from the inner convex ring 23, so that liquid at two ends of the communication port 22 can directly pass through a gap between the inner convex ring 23 and the valve core plate 17, and the water inlet 4 and the water outlet 5 can realize a flowing effect, thereby achieving the purpose of bidirectional flowing.
In this embodiment, the second hydraulic control assembly 11 includes the restriction baffle 26 and flexible passageway 27, every restriction baffle 26's top one end all is provided with oil pipeline 28, oil pipeline 28's intermediate junction has linkage pipeline 29, oil pipeline 28's end is connected with second oil inlet 7, flexible passageway 27's internally mounted has second spring 32, the tip of second spring 32 and restriction baffle 26's tip fixed connection, and restriction baffle 26's tip side is provided with spacing sand grip 33, grafting draw-in groove 25 has been seted up on one side of the top of cone tank 24, restriction baffle 26's end aligns with grafting draw-in groove 25 relatively, linkage fixture block 30 has been packed to linkage pipeline 29's inside, third spring 31 is installed to linkage fixture block 30's bottom. The second hydraulic control assembly 11 is installed inside, the second oil inlet 7 at the top can control the flow-limiting baffle 26 through external hydraulic oil, so that the valve core mechanism 10 is limited and blocked, the flow-limiting effect on liquid is achieved, the influence caused by the change of the internal water flow pressure at the water inlet 4 is avoided after adjustment, the multistage different flow-limiting effects can be achieved through the same oil inlet pipeline, the flexibility is higher, and the application environment with larger water pressure can be met by using the rigid blocking.
Specifically, the hydraulic oil is led into the linkage pipeline 29 through the second oil inlet 7, the hydraulic oil firstly enters the interior of the telescopic channel 27 at the top layer, the flow limiting baffle 26 is ejected towards the outer end at the position until the tail end of the flow limiting baffle 26 is clamped into the inserting clamping groove 25, the flow limiting baffle 26 at the top can be blocked at the top of the valve core mechanism 10, at the moment, no matter the flow limiting baffle 26 moves upwards through the first hydraulic control assembly 9 or the one-way flow, the valve core plate 17 can be ensured not to move upwards beyond the position of the stretched flow limiting baffle 26, when the upper flow limit is required to be further reduced, only the liquid pressure at the position of the first oil inlet 6 is required to be controlled, so that the linkage clamping block 30 in the linkage pipeline 29 is subjected to larger pressure downwards movement until the telescopic channel 27 at the bottom is opened, and the stretching control process of the bottom flow limiting baffle 26 can be realized.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. The utility model provides a hydraulic control valve for hydraulic engineering, includes hydraulic control valve body, its characterized in that: the hydraulic control valve body comprises a valve body (1), a first hydraulic control assembly (9), a second hydraulic control assembly (11) and a valve core mechanism (10), a top end cover (2) is installed at the top of the valve body (1), a bottom end cover (3) is arranged at the bottom of the valve body (1), a communication port (22) is arranged in the valve body (1), the first hydraulic control assembly (9) is installed at the bottom of the communication port (22), the valve core mechanism (10) is arranged at the top of the communication port (22), a telescopic channel (27) and a current limiting baffle (26) are installed in the second hydraulic control assembly (11), one end of each current limiting baffle (26) is embedded into the telescopic channel (27), the other end of each current limiting baffle (26) is inserted into an internal pipeline of the hydraulic control valve, and the current limiting baffles (26) are arranged in a plurality, and each current limiting baffle (26) is installed on different height positions in a mutually parallel state.
2. The hydraulic control valve for hydraulic engineering according to claim 1, wherein: the two ends of the valve body (1) are respectively provided with a water inlet (4) and a water outlet (5), the water inlet (4) and the water outlet (5) are connected through a communication port (22), the bottom of the first hydraulic control assembly (9) is provided with a first oil inlet (6), and the top of the second hydraulic control assembly (11) is provided with a second oil inlet (7).
3. The hydraulic control valve for hydraulic engineering according to claim 2, wherein: the water inlet (4) and the water outlet (5) are separated and disconnected through a valve core mechanism (10), and the first oil inlet (6) and the second oil inlet (7) are respectively connected with external hydraulic oil conveying equipment through independent pipelines.
4. The hydraulic control valve for hydraulic engineering according to claim 2, wherein: the first hydraulic control assembly (9) comprises a top plate (12) and an air bag (13), the air bag (13) is fixedly arranged at the top of the top plate (12), a valve rod (15) is connected in the middle of the top plate (12), a rubber pad (16) is arranged at the top of the valve rod (15), and the valve rod (15) is in butt joint with the valve core mechanism (10) through the rubber pad (16).
5. The hydraulic control valve for hydraulic engineering according to claim 4, wherein: the side of gasbag (13) is connected with air current pipeline (14), the side of valve body (1) is provided with gas pocket (8), the end and the gas pocket (8) of air current pipeline (14) are connected, the centre of gasbag (13) is hollow structure, and valve rod (15) upwards wears out from the centre of gasbag (13).
6. The hydraulic control valve for hydraulic engineering according to claim 4, wherein: the valve core mechanism (10) comprises a valve core plate (17) and a guide pipeline (20), a butt joint groove (18) is formed in the middle of the bottom end of the valve core plate (17), a lifting hole (19) is formed in the side edge of the butt joint groove (18), a first spring (21) is connected to the lifting hole (19), an inner convex ring (23) is arranged on the inner wall of the communication port (22), the guide pipeline (20) is fixedly arranged at the top of the inner convex ring (23), and a conical groove (24) is formed in the side edge of the guide pipeline (20).
7. The hydraulic control valve for hydraulic engineering according to claim 6, wherein: the bottom of the first spring (21) is inserted into the guide pipeline (20), the top of the guide pipeline (20) is inserted into the lifting hole (19), the valve core plate (17) is pressed on the surface of the inner convex ring (23) through the pulling of the first spring (21), and the valve rod (15) is propped against the inside of the butt joint groove (18) through the rubber pad (16) at the top.
8. The hydraulic control valve for hydraulic engineering according to claim 6, wherein: the second hydraulic control assembly (11) comprises a flow limiting baffle plate (26) and a telescopic channel (27), each flow limiting baffle plate (26) is provided with an oil conveying pipeline (28) at one end of the top, a linkage pipeline (29) is connected in the middle of the oil conveying pipeline (28), and the tail end of the oil conveying pipeline (28) is connected with the second oil inlet (7).
9. The hydraulic control valve for hydraulic engineering according to claim 8, wherein: the inside of flexible passageway (27) is installed second spring (32), the tip of second spring (32) and the tip fixed connection of current-limiting baffle (26), and the tip side of current-limiting baffle (26) is provided with spacing sand grip (33), grafting draw-in groove (25) have been seted up on one side of the top of toper groove (24).
10. The hydraulic control valve for hydraulic engineering according to claim 9, wherein: the tail end of the flow limiting baffle plate (26) is aligned with the plugging clamping groove (25), a linkage clamping block (30) is filled in the linkage pipeline (29), and a third spring (31) is arranged at the bottom of the linkage clamping block (30).
CN202410217488.7A 2024-02-28 2024-02-28 Hydraulic control valve for hydraulic engineering Active CN117780951B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410217488.7A CN117780951B (en) 2024-02-28 2024-02-28 Hydraulic control valve for hydraulic engineering

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Application Number Priority Date Filing Date Title
CN202410217488.7A CN117780951B (en) 2024-02-28 2024-02-28 Hydraulic control valve for hydraulic engineering

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CN117780951A true CN117780951A (en) 2024-03-29
CN117780951B CN117780951B (en) 2024-05-03

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105006A (en) * 1981-09-03 1983-03-16 Sensing F A Valve assembly for tanks
EP1903415A2 (en) * 2006-09-21 2008-03-26 Peter Behr Device for flow limitation
KR102085315B1 (en) * 2018-09-07 2020-03-05 국방과학연구소 Valve system with adjustable opening
CN211474560U (en) * 2019-12-10 2020-09-11 沈阳和卿科技有限公司 Liquid seal type valve component
CN112128157A (en) * 2020-09-07 2020-12-25 安徽千一智能设备股份有限公司 Hydraulic control one-way valve for hydraulic support
US20210207726A1 (en) * 2020-01-02 2021-07-08 Proserv Gilmore Valve Llc Check valve with conforming seat
CN215258010U (en) * 2021-04-19 2021-12-21 宁波创力液压技术工程有限公司 Ultrahigh pressure hydraulic control one-way valve
CN216279419U (en) * 2021-10-25 2022-04-12 乔光平 Hydraulic control valve for hydraulic engineering
CN117553149A (en) * 2023-12-27 2024-02-13 广东集诚液压机械有限公司 Hydraulic control one-way valve with flow regulating function

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105006A (en) * 1981-09-03 1983-03-16 Sensing F A Valve assembly for tanks
EP1903415A2 (en) * 2006-09-21 2008-03-26 Peter Behr Device for flow limitation
KR102085315B1 (en) * 2018-09-07 2020-03-05 국방과학연구소 Valve system with adjustable opening
CN211474560U (en) * 2019-12-10 2020-09-11 沈阳和卿科技有限公司 Liquid seal type valve component
US20210207726A1 (en) * 2020-01-02 2021-07-08 Proserv Gilmore Valve Llc Check valve with conforming seat
CN112128157A (en) * 2020-09-07 2020-12-25 安徽千一智能设备股份有限公司 Hydraulic control one-way valve for hydraulic support
CN215258010U (en) * 2021-04-19 2021-12-21 宁波创力液压技术工程有限公司 Ultrahigh pressure hydraulic control one-way valve
CN216279419U (en) * 2021-10-25 2022-04-12 乔光平 Hydraulic control valve for hydraulic engineering
CN117553149A (en) * 2023-12-27 2024-02-13 广东集诚液压机械有限公司 Hydraulic control one-way valve with flow regulating function

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