CN111810687A - Pressure relief direct-acting overflow valve - Google Patents
Pressure relief direct-acting overflow valve Download PDFInfo
- Publication number
- CN111810687A CN111810687A CN202010540412.XA CN202010540412A CN111810687A CN 111810687 A CN111810687 A CN 111810687A CN 202010540412 A CN202010540412 A CN 202010540412A CN 111810687 A CN111810687 A CN 111810687A
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- fixedly connected
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- pressure
- pressure regulating
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 13
- 230000001681 protective effect Effects 0.000 description 11
- 208000037805 labour Diseases 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003993 interaction Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to the technical field of valves and discloses a pressure relief direct-acting overflow valve which comprises a first shell, wherein a fixed block is fixedly sleeved at the top end of an inner cavity of the first shell, a pressure regulating screw is spirally sleeved in the fixed block, one end of the pressure regulating screw extends to the lower part of the fixed block and is movably connected with a transmission block, and a pressure regulating spring is fixedly connected to the bottom surface of the transmission block. According to the invention, through the mutual matching of the elastic piece, the sliding block, the guide rail, the linkage rod and the connecting plate, the linkage rod is driven by the connecting plate to move, the linkage rod drives the sliding block to move on the guide rail, the sliding block moves to compress the elastic piece to generate elastic force, the elastic force of the elastic piece drives the connecting plate to move to buffer the pressure of the pressure regulating spring, the problems that the pressure regulating spring is in a compression state for a long time, the spring generates certain elastic deformation, the elastic force of the spring is unstable, the overflow progress is influenced, the overflow effect is poor, and the stability is poor are solved, and the overflow effect is improved while the.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a pressure relief direct-acting overflow valve.
Background
The direct-acting overflow valve mainly comprises a valve body, a valve core, a pressure regulating spring and a pressure regulating screw, wherein the valve core is tightly attached to a valve seat under the action of the pressure regulating spring under the normal condition, an oil inlet and an oil outlet are not communicated, so the overflow valve is in a normally closed type, when the overflow valve is connected into a system, hydraulic oil generates an acting force on the valve core, the direction of the acting force is opposite to that of the spring force, when the acting force of the oil is greater than the spring force, the valve core is opened, the oil flows back to an oil tank from an overflow port, the spring force is increased along with the increase of the opening amount of the overflow valve until the spring force is balanced with the hydraulic acting force, and when the overflow valve starts to overflow, the pressure at the.
Modern direct acting type overflow valve is at the in-process that uses, because the pressure regulating spring is in compression state for a long time, certain elastic deformation appears in the spring, cause the elasticity of spring unstable, influence the overflow progress, it is poor to lead to the overflow effect, the problem of poor stability, simultaneously because the pressure regulating screw is not protected, moisture and dust in the air get into in the screw, cause the screw to be corroded the corrosion by the moisture in the air, the life that leads to the device is short, the extravagant problem of cost, in addition because the valve is often closed, inconvenient dismantlement is overhauld when device inner member damages, need consume a large amount of labours of workman when overhauing, the influence is overhauld the progress, it is big to cause the maintenance degree of difficulty, the extravagant problem of.
Disclosure of Invention
The invention provides a pressure relief direct-acting overflow valve which has the advantages of good overflow effect, high stability, long service life, cost saving, convenience in maintenance and labor saving, and solves the problems in the background art.
The invention provides the following technical scheme: a pressure relief direct-acting overflow valve comprises a first shell, a fixed block is fixedly sleeved at the top end of an inner cavity of the first shell, and the inside of the fixed block is spirally sleeved with a pressure regulating screw, one end of the pressure regulating screw extends to the lower part of the fixed block and is movably connected with a transmission block, and the bottom surface of the transmission block is fixedly connected with a pressure regulating spring, one end of the pressure regulating spring is fixedly connected with a connecting plate, and both sides of the bottom surface of the connecting plate are movably connected with a linkage rod, one end of the linkage rod is movably connected with a slide block, a guide rail is connected inside the slide blocks in a sliding manner, a limiting plate is fixedly connected at the bottom end of the guide rail, a valve core is fixedly connected at the bottom surface of the limiting plate, an elastic part is fixedly connected between the two slide blocks, the oil inlet has been seted up to the bottom of first shell, the oil-out has been seted up to the left bottom of first shell, and oil-out and oil inlet all communicate with the inner chamber of first shell.
Carefully, the equal fixedly connected with locating piece in both sides on first shell top, and the side fixedly connected with pressure spring of locating piece inner chamber, the one end fixedly connected with movable plate of pressure spring, and the side fixedly connected with bullet button of movable plate, the one end of bullet button runs through the locating piece and extends to the outside of locating piece, the protection casing has been placed to the top of first shell, and the button hole has all been seted up to the bottom of protection casing both sides.
Carefully, the second shell has been placed in the front of first shell, the equal fixedly connected with reinforcing plate in both sides of first shell and second shell, and the back fixedly connected with of reinforcing plate is located the screw of first shell side, the positive fixedly connected with of reinforcing plate is located the screw rod of second shell side, the one end of screw rod runs through the reinforcing plate and extends to the back of screw.
And carefully selecting, wherein the elastic part is movably sleeved outside the guide rail, and the length value of the elastic part is equal to the distance value between the two sliding blocks.
Carefully selecting, the quantity of gangbar is two, and two gangbar lie in the inboard slope of the one end on the slider.
Carefully selecting, the width value of the button hole is equal to that of the elastic button, and the button hole and the elastic button are in a clamping connection relationship.
And carefully selecting, wherein the movable plate is movably sleeved with the inner cavity of the positioning block, and the distance value from the movable plate to the side surface of the inner cavity of the positioning block is equal to the length value of the pressure spring.
And carefully selecting, wherein the screw rod is provided with threads matched with the screw, and the screw rod is spirally sleeved with the screw.
Carefully selecting, the draw-in groove has been seted up to the inner wall of first shell, the card strip has been seted up to the inner wall of second shell, and the card strip is the joint relation with the draw-in groove.
The invention has the following beneficial effects:
1. according to the invention, through the mutual matching of the elastic piece, the sliding block, the guide rail, the linkage rod and the connecting plate, the linkage rod is driven by the connecting plate to move, the linkage rod drives the sliding block to move on the guide rail, the sliding block moves to compress the elastic piece to generate elastic force, the elastic force of the elastic piece drives the connecting plate to move to buffer the pressure of the pressure regulating spring, the problems that the pressure regulating spring is in a compression state for a long time, the spring generates certain elastic deformation, the elastic force of the spring is unstable, the overflow progress is influenced, the overflow effect is poor, and the stability is poor are solved, and the overflow effect is improved while the.
2. According to the invention, the protective cover is fixed on the positioning block by the aid of the interaction between the button hole in the protective cover and the elastic button on the positioning block through the clamping connection of the button hole and the elastic button by means of adding the protective structure outside the pressure regulating screw, and the pressure regulating screw is protected by the protective cover, so that the problems that the service life of the device is short and the cost is wasted due to the fact that the pressure regulating screw is corroded and rusted by moisture in air because the pressure regulating screw is not protected and moisture and dust in the air enter the pressure regulating screw are solved, and the service life of the device is ensured and the cost is saved.
3. According to the invention, through the mutual matching of the first shell, the screw, the second shell and the screw, the screw is driven to move by utilizing the interaction between the screw and the screw, the screw drives the second shell to move to be combined with the first shell to form the shell of the device, and only the screw and the screw are required to be separated during maintenance, so that the problems that the valve is usually closed, the internal elements of the device are inconvenient to disassemble and maintain when damaged, a large amount of labor force of workers is required to be consumed during maintenance, the maintenance progress is influenced, the maintenance difficulty is large, the labor force is wasted are solved, and the maintenance difficulty of the valve is reduced while the labor force is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the structure of the present invention;
FIG. 3 is a side view of a second housing of the present invention;
FIG. 4 is an enlarged schematic view of the present invention at configuration A;
fig. 5 is a schematic structural view of the protective cover of the present invention.
In the figure: 1. a first housing; 2. an oil inlet; 3. an oil outlet; 4. a limiting plate; 5. an elastic member; 6. a linkage rod; 7. a card slot; 8. a pressure regulating spring; 9. a reinforcing plate; 10. a transmission block; 11. a protective cover; 12. a pressure regulating screw; 13. a fixed block; 14. a connecting plate; 15. a slider; 16. a guide rail; 17. a valve core; 18. a screw; 19. a second housing; 20. a screw; 21. clamping the strip; 22. snapping a button; 23. moving the plate; 24. a pressure spring; 25. positioning blocks; 26. and (4) buttonholes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a pressure relief direct-acting overflow valve comprises a first housing 1, a fixed block 13 is fixedly sleeved at the top end of an inner cavity of the first housing 1, a pressure regulating screw 12 is spirally sleeved inside the fixed block 13, one end of the pressure regulating screw 12 extends to the lower side of the fixed block 13 and is movably connected with a transmission block 10, a pressure regulating spring 8 is fixedly connected with the bottom surface of the transmission block 10, one end of the pressure regulating spring 8 is fixedly connected with a connecting plate 14, two sides of the bottom surface of the connecting plate 14 are movably connected with linkage rods 6, the number of the linkage rods 6 is two, one end of each linkage rod 6 positioned on a sliding block 15 is inclined inwards, the linkage rods 6 are driven to move by the connecting plate 14, the linkage rods 6 drive the sliding blocks 15 to move on guide rails 16, the sliding blocks 15 move to compress elastic pieces 5 to generate elastic force, the elastic pieces 5 drive the connecting plate 14, the problems that the pressure regulating spring 8 is in a compressed state for a long time, the pressure regulating spring 8 generates certain elastic deformation, the elasticity of the pressure regulating spring 8 is unstable, the overflow progress is affected, the overflow effect is poor, and the stability is poor are solved, the overflow effect is improved, and the stability of overflow is ensured at the same time, one end of the linkage rod 6 is movably connected with a sliding block 15, the sliding block 15 is internally and slidably connected with a guide rail 16, the bottom end of the guide rail 16 is fixedly connected with a limiting plate 4, the bottom surface of the limiting plate 4 is fixedly connected with a valve core 17, an elastic part 5 is fixedly connected between the two sliding blocks 15, the elastic part 5 is movably sleeved outside the guide rail 16, the length value of the elastic part 5 is equal to the distance value between the two sliding blocks 15, the elastic part 5 is limited by the guide rail 16, the problem that the elastic part 5 is inclined is reduced, meanwhile, the, thereby buffering the pressure of the pressure regulating spring 8, an oil inlet 2 is arranged at the bottom end of the first housing 1, an oil outlet 3 is arranged at the left bottom end of the first housing 1, the oil outlet 3 and the oil inlet 2 are both communicated with the inner cavity of the first housing 1, positioning blocks 25 are fixedly connected to both sides of the top end of the first housing 1, a pressure spring 24 is fixedly connected to the side surface of the inner cavity of the positioning block 25, one end of the pressure spring 24 is fixedly connected with a moving plate 23, the moving plate 23 is movably sleeved with the inner cavity of the positioning block 25, the distance value from the moving plate 23 to the side surface of the inner cavity of the positioning block 25 is equal to the length value of the pressure spring 24, so that the moving plate 23 can drive the elastic button 22 to move stably in the positioning block 25, and simultaneously the pressure spring 24 is initially in a normal state, the elastic expansion and contraction of the pressure spring 24 are used for realizing the clamping and separation of the elastic button 22 and, the protective cover 11 is placed above the first shell 1, button holes 26 are formed in the bottom ends of two sides of the protective cover 11, the width of each button hole 26 is equal to that of each elastic button 22, the button holes 26 and the elastic buttons 22 are in a clamping connection relationship, the protective cover 11 is fixed on the positioning block 25 through the clamping connection of the button holes 26 and the elastic buttons 22 by utilizing the interaction of the button holes 26 on the protective cover 11 and the elastic buttons 22 on the positioning block 25, the protective cover 11 is adopted to protect the pressure regulating screws 12, the problems that the pressure regulating screws 12 are corroded and corroded by moisture in the air due to the fact that the pressure regulating screws 12 are not protected and moisture and dust in the air enter the pressure regulating screws 12, the service life of the device is shortened, the cost is wasted, the cost is saved while the service life of the device is guaranteed, the second shell 19 is placed on the front side of the first shell 1, reinforcing plates 9 are fixedly connected to two sides of the first shell 1 and the second, the back of the reinforcing plate 9 is fixedly connected with a screw 18 positioned on the side of the first shell 1, the front of the reinforcing plate 9 is fixedly connected with a screw 20 positioned on the side of the second shell 19, the screw 20 is provided with threads matched with the screw 18, the screw 20 is in spiral sleeve joint with the screw 18, the screw 20 is driven to move by utilizing the interaction between the screw 20 and the screw 18, the screw 20 drives the second shell 19 to move to be combined with the first shell 1 to form the shell of the device, only the screw 20 and the screw 18 are separated during maintenance, the problems of large maintenance difficulty and labor waste caused by large labor consumption of workers during maintenance and influence on maintenance progress due to the fact that the valve is usually closed and the internal elements of the device are inconvenient to disassemble and maintain when damaged are solved, the maintenance difficulty of the valves is reduced, and the labor is saved, one end of the screw 20 penetrates through the reinforcing plate 9 and extends to the back of the screw 18, draw-in groove 7 has been seted up to the inner wall of first shell 1, card strip 21 has been seted up to the inner wall of second shell 19, and card strip 21 and draw-in groove 7 are the joint relation, through the joint of card strip 21 and draw-in groove 7, prescribe a limit to the position of second shell 19 and first shell 1, make second shell 19 can merge completely with first shell 1, and use screw rod 20 and screw 18 to fix, avoid second shell 19 crooked, cause to merge to have the gap, lead to the unable problem that realizes of overflow.
The working principle is as follows: when the oil pressure protection device is used, oil pressure enters the device from an oil inlet 2, the oil pressure drives the valve core 17 to move upwards, the valve core 17 drives the pressure regulating spring 8 to compress to generate elastic force, the pressure of the pressure regulating spring 8 drives the connecting plate 14 to move downwards, the connecting plate 14 drives the linkage rod 6 to move, the linkage rod 6 drives the two sliding blocks 15 to move oppositely, the two sliding blocks 15 move to compress the elastic part 5 to generate elastic force, the counter elastic force of the elastic part 5 drives the connecting plate 14 to move reversely to buffer the pressure of the pressure regulating spring 8, the valve core 17 moves upwards to open the oil outlet 3, the oil pressure flows out from the oil outlet 3 to be decompressed, after the use is finished, the protection cover 11 is sleeved outside the pressure regulating screw 12, the protection cover 11 firstly compresses the elastic button 22, the elastic button 22 compresses the moving plate 23, the pressure spring 24 generates elastic force when the moving plate 23 moves in the positioning block 25, the moving plate 11 continues to, play button 22 and remove and to spring into in the button hole 26 fixed to protection casing 11, protection casing 11 protects pressure regulating screw 12, when needing to overhaul, rotating screw rod 20, screw rod 20 and 18 screw action, it removes and separates with screw 18 to drive screw rod 20, take off second shell 19 from first shell 1 this moment, to the inside maintenance of device, overhaul after accomplishing, go into card strip 21 card in the draw-in groove 7, make second shell 19 and first shell 1 merge, then reverse rotating screw rod 20 stretch into in the screw 18 fix again can.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a pressure release direct-acting overflow valve, includes first shell (1), its characterized in that: the fixed cover in top of first shell (1) inner chamber has connect fixed block (13), and the inside spiral of fixed block (13) has cup jointed pressure regulating screw (12), the one end of pressure regulating screw (12) extends to the below and swing joint of fixed block (13) has transmission piece (10), and the bottom surface fixedly connected with pressure regulating spring (8) of transmission piece (10), the one end fixedly connected with connecting plate (14) of pressure regulating spring (8), and the equal swing joint in both sides of connecting plate (14) bottom surface has gangbar (6), the one end swing joint of gangbar (6) has slider (15), and the inside sliding connection of slider (15) has guide rail (16), the bottom fixedly connected with limiting plate (4) of guide rail (16), and the bottom surface fixedly connected with case (17) of limiting plate (4), two fixedly connected with elastic component (5) between slider (15), the oil inlet (2) has been seted up to the bottom of first shell (1), oil-out (3) have been seted up to the left bottom of first shell (1), and oil-out (3) and oil inlet (2) all communicate with the inner chamber of first shell (1).
2. The pressure relief direct acting relief valve according to claim 1, wherein: the utility model discloses a safety protection device, including first shell (1), the equal fixedly connected with locating piece (25) in both sides on first shell (1) top, and the side fixedly connected with pressure spring (24) of locating piece (25) inner chamber, the one end fixedly connected with movable plate (23) of pressure spring (24), and the side fixedly connected with of movable plate (23) play button (22), the one end of bullet button (22) runs through locating piece (25) and extends to the outside of locating piece (25), protection casing (11) have been placed to the top of first shell (1), and button hole (26) have all been seted up to the bottom of protection casing (11) both sides.
3. The pressure relief direct acting relief valve according to claim 1, wherein: second shell (19) have been placed in the front of first shell (1), the equal fixedly connected with reinforcing plate (9) in both sides of first shell (1) and second shell (19), and the back fixedly connected with of reinforcing plate (9) is located screw (18) of first shell (1) side, the positive fixedly connected with of reinforcing plate (9) is located screw rod (20) of second shell (19) side, the one end of screw rod (20) runs through reinforcing plate (9) and extends to the back of screw (18).
4. The pressure relief direct acting relief valve according to claim 1, wherein: the elastic piece (5) is movably sleeved outside the guide rail (16), and the length value of the elastic piece (5) is equal to the distance value between the two sliding blocks (15).
5. The pressure relief direct acting relief valve according to claim 1, wherein: the number of the linkage rods (6) is two, and one ends of the two linkage rods (6) located on the sliding blocks (15) are inclined inwards.
6. The pressure relief direct acting relief valve according to claim 2, wherein: the width value of button hole (26) equals with the width value of bullet button (22), button hole (26) and bullet button (22) are the joint relation.
7. The pressure relief direct acting relief valve according to claim 2, wherein: the moving plate (23) is movably sleeved with an inner cavity of the positioning block (25), and the distance value from the moving plate (23) to the side face of the inner cavity of the positioning block (25) is equal to the length value of the pressure spring (24).
8. The pressure relief direct acting relief valve according to claim 3, wherein: the screw rod (20) is provided with threads matched with the screw (18), and the screw rod (20) is in spiral sleeve connection with the screw (18).
9. The pressure relief direct acting relief valve according to claim 3, wherein: draw-in groove (7) have been seted up to the inner wall of first shell (1), card strip (21) have been seted up to the inner wall of second shell (19), and card strip (21) and draw-in groove (7) are the joint relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540412.XA CN111810687B (en) | 2020-06-15 | 2020-06-15 | Pressure relief direct-acting overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540412.XA CN111810687B (en) | 2020-06-15 | 2020-06-15 | Pressure relief direct-acting overflow valve |
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| Publication Number | Publication Date |
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| CN111810687A true CN111810687A (en) | 2020-10-23 |
| CN111810687B CN111810687B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010540412.XA Active CN111810687B (en) | 2020-06-15 | 2020-06-15 | Pressure relief direct-acting overflow valve |
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| CN (1) | CN111810687B (en) |
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| CN201502763U (en) * | 2009-09-21 | 2010-06-09 | 宁波汉商液压有限公司 | Directly-actuated overflow valve |
| CN102042432A (en) * | 2010-12-10 | 2011-05-04 | 北京工业大学 | Direct-acting water pressure overflow valve with damping piston |
| KR20110069937A (en) * | 2009-12-18 | 2011-06-24 | 현대중공업 주식회사 | Pump control valve to enhance control characteristic of the flow in the main control valve |
| CN203614836U (en) * | 2013-10-25 | 2014-05-28 | 宁波明启液压机械有限公司 | Direct-acting overflow valve |
| CN105570502A (en) * | 2016-02-02 | 2016-05-11 | 南京航海仪器二厂有限公司 | Fast unloading safety valve |
| CN106438549A (en) * | 2016-12-08 | 2017-02-22 | 燕山大学 | Direct-acting overflow valve |
| CN107218419A (en) * | 2017-06-01 | 2017-09-29 | 上海航天控制技术研究所 | A kind of small interior leakage direct-acting overflow valve of big flow |
| CN107906235A (en) * | 2017-11-16 | 2018-04-13 | 杭州华惠阀门有限公司 | A kind of steam security valve |
| WO2019061071A1 (en) * | 2017-09-27 | 2019-04-04 | Engineered Controls International, Llc | Combination regulator valve |
| CN209356892U (en) * | 2019-03-05 | 2019-09-06 | 天津趣橙科技有限公司 | A kind of smart home remote-control switch device |
| CN110529638A (en) * | 2019-08-20 | 2019-12-03 | 王美娟 | A kind of two-stage pressure release direct-acting overflow valve |
| CN210724030U (en) * | 2019-12-19 | 2020-06-09 | 江西百益建设工程有限公司 | Wire clamping and fixing device for power equipment |
-
2020
- 2020-06-15 CN CN202010540412.XA patent/CN111810687B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201502763U (en) * | 2009-09-21 | 2010-06-09 | 宁波汉商液压有限公司 | Directly-actuated overflow valve |
| KR20110069937A (en) * | 2009-12-18 | 2011-06-24 | 현대중공업 주식회사 | Pump control valve to enhance control characteristic of the flow in the main control valve |
| CN102042432A (en) * | 2010-12-10 | 2011-05-04 | 北京工业大学 | Direct-acting water pressure overflow valve with damping piston |
| CN203614836U (en) * | 2013-10-25 | 2014-05-28 | 宁波明启液压机械有限公司 | Direct-acting overflow valve |
| CN105570502A (en) * | 2016-02-02 | 2016-05-11 | 南京航海仪器二厂有限公司 | Fast unloading safety valve |
| CN106438549A (en) * | 2016-12-08 | 2017-02-22 | 燕山大学 | Direct-acting overflow valve |
| CN107218419A (en) * | 2017-06-01 | 2017-09-29 | 上海航天控制技术研究所 | A kind of small interior leakage direct-acting overflow valve of big flow |
| WO2019061071A1 (en) * | 2017-09-27 | 2019-04-04 | Engineered Controls International, Llc | Combination regulator valve |
| CN107906235A (en) * | 2017-11-16 | 2018-04-13 | 杭州华惠阀门有限公司 | A kind of steam security valve |
| CN209356892U (en) * | 2019-03-05 | 2019-09-06 | 天津趣橙科技有限公司 | A kind of smart home remote-control switch device |
| CN110529638A (en) * | 2019-08-20 | 2019-12-03 | 王美娟 | A kind of two-stage pressure release direct-acting overflow valve |
| CN210724030U (en) * | 2019-12-19 | 2020-06-09 | 江西百益建设工程有限公司 | Wire clamping and fixing device for power equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111810687B (en) | 2022-02-11 |
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Effective date of registration: 20220120 Address after: 430000 Changfu new town, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: WUHAN BOSITE VALVE GROUP CO.,LTD. Address before: 400000 No. 29, Xiangshi village, Linjiang Town, Kai County, Wanzhou District, Chongqing Applicant before: Xu Xingyong |
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