CN113983018A - One-way pressure reducing valve - Google Patents
One-way pressure reducing valve Download PDFInfo
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- CN113983018A CN113983018A CN202111264419.4A CN202111264419A CN113983018A CN 113983018 A CN113983018 A CN 113983018A CN 202111264419 A CN202111264419 A CN 202111264419A CN 113983018 A CN113983018 A CN 113983018A
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- pressure reducing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/025—Pressure reducing valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention provides a one-way pressure reducing valve. Belong to the relief pressure valve field, it includes valve barrel, case and pressure regulating unit, wherein: the interior of the valve sleeve is hollow and is provided with a liquid inlet and a liquid passing port which are used for being connected with the high-pressure port; the valve core is arranged in the valve sleeve in a sliding manner along the axial direction, a pressure reducing liquid channel and a one-way valve channel which penetrate along the axial direction are arranged in the valve core, the right end of the pressure reducing liquid channel is used for being connected with the pressure reducing port, and the left end of the pressure reducing liquid channel is provided with a penetrating liquid passing hole and is matched with the liquid inlet to form a throttling flow channel; a one-way liquid outlet hole is formed in the right end of the one-way valve channel in a penetrating mode, the one-way liquid outlet hole is communicated with the liquid passing port to form a one-way channel, and meanwhile a one-way assembly is placed inside the one-way valve channel to control the opening and closing of the one-way channel; the pressure regulating unit is connected with the tail part of the valve sleeve. The one-way pressure reducing valve provided by the invention can realize free flow of reverse liquid on the basis of pressure regulation, so that the functions of the pressure reducing valve and the one-way valve are integrated, and the one-way pressure reducing valve is more suitable for smaller application space.
Description
Technical Field
The invention belongs to the field of pressure reducing valves, and particularly relates to a one-way pressure reducing valve.
Background
The hydraulic thread cartridge pressure reducing valve is one of hydraulic pressure control elements of a hydraulic system, and is a necessary hydraulic element for fluid control due to the fact that the hydraulic thread cartridge pressure reducing valve is easy to install, small in size and convenient to regulate pressure. At present, the pressure reducing valve is widely applied to the field of threaded cartridge valves and is mainly used for achieving the function of regulating the pressure of a branch. However, in some applications, such as where pressure relief is required and free flow of reverse fluid is also required (e.g., hydraulic brake hydraulic circuits), the threaded cartridge valve has not been a good solution.
The current method is mainly realized by connecting a pressure reducing valve with a check valve in parallel. In practical use, the scheme has the problem that the layout is difficult to design on occasions with small space, and sometimes has the problem of pressure regulating squeal. In view of the above problems, the present invention provides an economical solution to solve the above two problems simultaneously.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a one-way pressure reducing valve, and aims to solve the problems that the conventional hydraulic threaded cartridge pressure reducing valve cannot directly realize reverse liquid free flow and has pressure regulating squeal.
In order to achieve the above object, the present invention provides a one-way pressure reducing valve including a valve housing, a valve core, and a pressure regulating unit, wherein:
the valve sleeve is hollow, and is sequentially provided with a liquid inlet and a liquid passing port from right to left and is used for being connected with the high-pressure port;
the valve core is arranged in the valve sleeve in an axially slidable manner, a pressure reducing liquid channel and a one-way valve channel which penetrate through the valve core in the axial direction are sequentially arranged in the valve core from right to left, the right end of the pressure reducing liquid channel is used for being connected with a pressure reducing port, the left end of the pressure reducing liquid channel is provided with a penetrating liquid passing hole, the liquid passing hole is matched with the liquid inlet to form a throttling flow channel, and the opening degree of the throttling flow channel is controlled through the movement of the valve core during work, so that the pressure reducing function is realized; the right end of the one-way valve channel is provided with a through one-way liquid outlet hole, the one-way liquid outlet hole is communicated with the liquid passing port to form a one-way channel, and meanwhile, a one-way component is placed in the one-way valve channel and controls the one-way channel to be opened and closed through the one-way component during work;
the pressure regulating unit is connected with the tail part of the valve sleeve and is used for regulating the pressure of the pressure reducing port.
Preferably, the valve core is provided with a first liquid tank and a second liquid tank in sequence from right to left along the circumferential direction, and the first liquid tank is communicated with the liquid passing hole and matched with the liquid inlet to form the throttling channel; one end of the second liquid tank is communicated with the one-way liquid outlet hole, and the other end of the second liquid tank is communicated with the liquid passing port to form the one-way channel.
Preferably, the valve core is provided with a third liquid tank and a liquid drainage channel, the valve sleeve is provided with a liquid drainage port in a matching manner, the third liquid tank is circumferentially arranged at the tail end of the valve core, one end of the liquid drainage channel is communicated with the liquid passing hole, and the other end of the liquid drainage channel is communicated with the third liquid tank, so that redundant liquid flows into the third liquid tank from the liquid drainage channel and is drained from the liquid drainage port through a gap between the valve core and the valve sleeve.
Preferably, the valve core and the right end of the valve sleeve are in stepped structures, and a buffer cavity is formed by mutual matching so as to slow down the oscillation of the valve core.
Preferably, the pressure regulating unit comprises a pressure regulating spring and a sealing assembly, wherein one end of the pressure regulating spring extends into the valve sleeve and abuts against the valve core, and the other end of the pressure regulating spring is arranged in the sealing assembly and abuts against the sealing assembly; the seal assembly is connected to the rear of the valve housing to seal it.
As a further preferred option, the sealing assembly includes a threaded sleeve and a second spring seat, the threaded sleeve is connected to the tail of the valve sleeve, and the second spring seat is disposed inside the threaded sleeve and used for abutting against the pressure regulating spring.
As further preferred, seal assembly still includes adjusting pole and lock nut, adjust the pole and stretch into the swivel nut to with the gomphosis installation of second spring holder, simultaneously lock nut and the caudal joint of adjusting the tail portion of pole is used for adjusting pressure regulating spring's compression degree, in order to adjust one-way relief valve's decompression effect.
Preferably, a connecting sleeve, a second steel ball and a first spring seat are sequentially arranged between the pressure regulating spring and the valve core from right to left, the right end of the connecting sleeve is embedded with the valve core, and the left end of the connecting sleeve is connected with the first spring seat through the second steel ball, so that the influence of the pressure regulating process on the valve core is avoided; one end of the first spring seat props against the connecting sleeve to limit, and the other end of the first spring seat props against the pressure regulating spring.
Preferably, the one-way assembly comprises a one-way spring and a first steel ball which are connected with each other, and the one-way spring drives the first steel ball to move during operation so as to control the opening and closing of the one-way passage.
Preferably, a one-way liquid inlet channel is arranged between the pressure reducing liquid channel and the one-way valve channel, and the diameter of the one-way liquid inlet channel is smaller than that of the pressure reducing liquid channel.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
1. the structure of the valve sleeve and the valve core is optimized, the one-way valve channel and the matched one-way component are arranged in the valve core, and the free flow of reverse liquid can be realized on the basis of pressure regulation, so that the functions of the pressure reducing valve and the one-way valve are integrated, and the method is more suitable for a smaller application space compared with a method of connecting the pressure reducing valve with the one-way valve in parallel;
2. meanwhile, in order to ensure the pressure of the pressure reducing port to be constant, the third liquid tank and the liquid drainage channel are arranged on the valve core, so that liquid can flow into a gap between the valve core and the valve sleeve through the liquid drainage channel and the third liquid tank under the condition that the pressure reducing port is closed, and then flow out through the liquid drainage port, the pressure of the pressure reducing port is ensured to be always the set pressure reducing pressure, the liquid is prevented from leaking into the pressure reducing port through the gap between the valve core and the valve sleeve, the pressure of the pressure reducing port is increased, meanwhile, the lateral forces on the left side and the right side of the valve core can be balanced, and the risk of clamping stagnation of the valve core is reduced;
3. in addition, the valve core and the right end of the valve sleeve are designed into a step structure to form a buffer cavity, and the buffer cavity is filled with liquid when the valve core is in a high-frequency opening and closing state, so that the buffer cavity can slow down the oscillation of the valve core in the pressure regulating process, and the phenomenon of squeaking is effectively prevented.
Drawings
FIG. 1 is a cross-sectional view of a one-way pressure relief valve provided in accordance with a preferred embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a one-way pressure relief valve provided in accordance with a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a valve cartridge in a one-way pressure reducing valve provided in accordance with a preferred embodiment of the present invention;
FIG. 4 is a hydraulic schematic of a one-way pressure relief valve provided in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of an application of a one-way pressure relief valve provided in accordance with a preferred embodiment of the present invention;
FIG. 6 is a partial cross-sectional view of a one-way pressure relief valve provided in accordance with a preferred embodiment of the present invention in a pressure relief condition;
fig. 7 is a partial sectional view of a one-way pressure reducing valve in a one-way state according to a preferred embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1-a valve core, 2-a valve sleeve, 3-a first retainer ring, 4-a first O-shaped ring, 5-a first steel ball, 6-a-way spring, 7-a second O-shaped ring, 8-a second retainer ring, 9-a pin, 10-a connecting sleeve, 11-a third O-shaped ring, 12-a second steel ball, 13-a first spring seat, 14-a pressure regulating spring, 15-a fourth O-shaped ring, 16-a screw sleeve, 17-a second spring seat, 18-a fifth O-shaped ring, 19-a regulating rod, 20-a locking nut, 21-a brake, 22-an electromagnetic valve, a 11-a pressure reducing liquid channel, a 12-a liquid passing hole, a 13-a one-way liquid inlet channel, a 14-a liquid outlet hole, a 15-a liquid outlet channel, b 2-a liquid inlet, b 3-a liquid passing port, b 4-a liquid discharge port, c 1-a second liquid tank, c 2-a third liquid tank, c 3-a first liquid tank, d-a one-way valve channel, e-a buffer cavity, i-a high pressure port, ii-a pressure reduction port and iii-a pressure relief port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 3, a preferred embodiment of the present invention provides a one-way pressure reducing valve including a valve housing 2, a valve core 1, and a pressure regulating unit, wherein:
the interior of the valve sleeve 2 is hollow, and the valve sleeve 2 is sequentially provided with a liquid inlet b2 and a liquid passing port b3 from right to left and is used for being connected with the high-pressure port i;
the valve core 1 is arranged in the valve sleeve 2 in an axially slidable manner, a pressure reducing liquid channel a11 and a one-way valve channel d which penetrate through the valve core 1 along the axial direction are sequentially arranged in the valve core 1 from right to left, meanwhile, the valve core 1 is sequentially provided with a first liquid tank c3 and a second liquid tank c1 along the circumferential direction from right to left, the right end of the pressure reducing liquid channel a11 is used for being connected with a pressure reducing port ii, the left end of the pressure reducing liquid channel a11 is provided with a penetrating liquid passing hole a12, the liquid passing hole a12 is communicated with the first liquid tank c3 and is matched with a liquid inlet b2 to form a throttling flow channel, and the opening degree of the throttling flow channel is controlled through the movement of the valve core 1 during work, so that the pressure reducing function is realized; the right end of the one-way valve channel d is provided with a through one-way liquid outlet a14, the one-way liquid outlet a14 is communicated with the liquid passing port b3 through a second liquid tank c1 to form a one-way channel, and a one-way component is placed in the one-way valve channel d and controls the opening and closing of the one-way channel during work;
the pressure regulating unit is connected with the tail part of the valve sleeve 2 and used for regulating the pressure of a pressure reducing port ii and comprises a pressure regulating spring 14 and a sealing component, one end of the pressure regulating spring 14 extends into the valve sleeve 2 and abuts against the valve core 1, and the other end of the pressure regulating spring is arranged in the sealing component and abuts against the sealing component; a sealing assembly is connected to the rear of the housing 2 to seal it.
Further, compared with the common pressure reducing valve, the one-way pressure reducing valve provided by the invention not only can realize the function of liquid reverse flow, but also can solve the problem that the valve core closes the pressure reducing opening due to the flow of reaction liquid. In order to achieve the effect, the valve core 1 is provided with a third liquid groove c2 and a drain channel a15, the valve sleeve 2 is provided with a drain port b4 in a matching way, the third liquid groove c2 is arranged at the tail end of the valve core 1 along the circumferential direction, one end of the drain channel a15 is communicated with the liquid passing hole a12, and the other end of the drain channel a15 is communicated with a third liquid groove c2, so that redundant liquid flows into the third liquid groove c2 from the drain channel a15 and then is discharged from the drain port b4 through a gap between the valve core 1 and the valve sleeve 2, and the tail end of the drain channel a15 is sealed through a pin 9. In practical use, when the pressure oil in the pressure reducing port ii is dead (for example, when the actuator such as an oil cylinder is bottomed), the pressure in the pressure reducing port ii can be introduced into the third fluid tank c2 from the fluid leakage channel a15, and then flows out from the fluid leakage port b4 through the gap between the valve core 1 and the valve sleeve 2, so as to ensure that the pressure in the pressure reducing port ii is always the set pressure. The pressure oil at the high pressure port i is prevented from leaking through the clearance between the valve core 1 and the valve sleeve 2, so that the pressure at the decompression port ii is slowly increased and can not be kept constant. Meanwhile, the third liquid groove c2 and the liquid discharge channel a15 are arranged, so that lateral forces on the left side and the right side of the valve core 1 can be balanced, and the risk of clamping stagnation of the valve core 1 is reduced.
Further, the right-hand member of case 1 and valve barrel 2 adopts the stair structure, forms cushion chamber e through mutually supporting, and when needs decompression, case 1 moves left and makes throttle channel's aperture slowly diminish, and case 1 is in the state of opening and shutting of high frequency, and cushion chamber e is full of hydraulic oil under the effect of the pressure oil of ii at the decompression mouth this moment, can effectively slow down the vibration of case 1 to prevent the emergence of the phenomenon of whistling.
Further, a connecting sleeve 10, a second steel ball 12 and a first spring seat 13 are sequentially arranged between the pressure regulating spring 14 and the valve core 1 from right to left, the right end of the connecting sleeve 10 is embedded with the valve core 1, and the left end of the connecting sleeve is connected with the first spring seat 13 through the second steel ball 12, so that the valve core 1 is prevented from being influenced in the pressure regulating process, and the valve core 1 cannot rotate in the pressure regulating process; the first spring seat 13 is for abutting against the pressure regulating spring 14.
Further, the sealing assembly comprises a threaded sleeve 16, a second spring seat 17, an adjusting rod 19 and a locking nut 20, the threaded sleeve 16 is connected with the tail part of the valve sleeve 2, and the second spring seat 17 is arranged inside the threaded sleeve 16 and used for abutting against the pressure regulating spring 14; the adjusting rod 19 extends into the threaded sleeve 16 and is embedded with the second spring seat 17, and meanwhile, the locking nut 20 is connected with the tail of the adjusting rod 19 and is used for adjusting the compression degree of the pressure adjusting spring 14, so that the pressure reducing effect of the one-way pressure reducing valve is adjusted.
Further, in order to ensure the sealing performance and the stability, a first O-shaped ring 4, a second O-shaped ring 7 and a third O-shaped ring 11 are sequentially arranged in the groove of the valve sleeve from right to left, wherein a first check ring 3 is arranged on the outer side of the first O-shaped ring 4, and a second check ring 8 is arranged on the outer side of the second O-shaped ring 7, so that the sealing pressure of the first O-shaped ring 4 and the sealing pressure of the second O-shaped ring 7 are improved. Meanwhile, a fourth O-shaped ring 15 is arranged at the joint of the valve sleeve 2 and the screw sleeve 16, and a fifth O-shaped ring 18 is arranged at the joint of the second spring seat 17 and the screw sleeve 16, so that liquid leakage is avoided.
Furthermore, the unidirectional component can adopt a spring type unidirectional component, a gravity type unidirectional component or a swing type unidirectional component and the like commonly used in the prior art. The invention preferably adopts a spring type one-way component which comprises a one-way spring 6 and a first steel ball 5, wherein one end of the one-way spring 6 props against a connecting sleeve 10, and the other end of the one-way spring is connected with the first steel ball 5; when the one-way channel is closed, the one-way spring 6 pushes the first steel ball 5 to prop against the inlet of the one-way valve channel d, and the inlet of the one-way valve channel d is closed; when the one-way channel is opened, the reverse liquid pushes the first steel ball 5 and the one-way spring 6 to move leftwards, and the inlet of the one-way valve channel d is opened.
As shown in fig. 4 and 5, the operation of the invention will be described in further detail with reference to its application in a motor vehicle, in which use the high pressure port i is connected to the brake 21 and the pressure reduction port ii is connected to the solenoid valve 22.
As shown in fig. 6, when the pressure reducing function of the one-way pressure reducing valve is realized, the pressure oil enters from the high-pressure port i, sequentially passes through the liquid inlet b2, the liquid passing hole a12 and the pressure reducing liquid channel a11, and enters the pressure reducing port ii, so as to provide the load action of the pressure reducing port ii. If the pressure of the pressure reducing port ii is larger than the set pressure of the one-way pressure reducing valve, the valve core 1 moves towards the left side, so that the opening degree of the pressure reducing channel is reduced, and the pressure of the pressure reducing port ii is reduced; if the pressure of the pressure reducing port ii is smaller than the set pressure of the one-way pressure reducing valve, the valve core 1 moves towards the right side, so that the opening degree of the pressure reducing channel is increased, the pressure of the pressure reducing port ii is increased, and the constant pressure of the pressure reducing port ii is ensured. Meanwhile, pressure oil also enters the one-way valve channel d through the liquid passing port b3, the second liquid tank c1 and the one-way liquid outlet hole a14, and the pressure of the one-way valve channel d and the combined action of the one-way spring 6 enable the first steel ball 5 to move rightwards and cut off the liquid of the one-way valve channel d, which is led to the pressure reducing port ii.
As shown in fig. 7, when the one-way pressure reducing valve realizes the one-way function, when the pressure oil in the pressure reducing port ii flows reversely to the high pressure port 2 (at this time, the pressure oil supply is cut off by the high pressure port 2), the liquid in the pressure reducing port ii instantly gives a force to the valve core 1 to move leftwards, so that the throttling channel is reduced or closed, and simultaneously the first steel ball 5 is pushed to overcome the elastic force of the one-way spring 6, and the liquid in the pressure reducing port ii is led to the high pressure port i through the pressure reducing liquid channel a11, the one-way liquid inlet channel a13, the one-way valve channel d and the one-way channel (the one-way liquid outlet hole a14 and the liquid passing port b 3). Under the condition that the flow rate of the pressure reducing port ii is not large, part of pressure oil of the pressure reducing port ii is communicated to the high pressure port i through the pressure reducing liquid channel a11, the liquid passing hole a12 and the liquid inlet b 2.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. A one-way pressure reducing valve, characterized in that, this one-way pressure reducing valve includes valve barrel (2), case (1) and pressure regulating unit, wherein:
the interior of the valve sleeve (2) is hollow, and the valve sleeve (2) is sequentially provided with a liquid inlet (b2) and a liquid passing port (b3) from right to left and is used for being connected with the high-pressure port (i);
the valve core (1) is arranged in the valve sleeve (2) in an axially slidable manner, a pressure reducing liquid channel (a11) and a one-way valve channel (d) which penetrate through the valve core (1) along the axial direction are sequentially arranged in the valve core (1) from right to left, the right end of the pressure reducing liquid channel (a11) is used for being connected with a pressure reducing port (ii), a penetrating liquid passing hole (a12) is arranged at the left end of the pressure reducing liquid channel, the liquid passing hole (a12) and the liquid inlet (b2) are matched to form a throttling flow channel, and the opening degree of the throttling flow channel is controlled by the movement of the valve core (1) during work, so that the pressure reducing function is realized; the right end of the one-way valve channel (d) is provided with a through one-way liquid outlet hole (a14), the one-way liquid outlet hole (a14) is communicated with the liquid passing port (b3) to form a one-way channel, and meanwhile, a one-way component is arranged in the one-way valve channel (d) and controls the one-way channel to be opened and closed through the one-way component during work;
the pressure regulating unit is connected with the tail part of the valve sleeve (2) and is used for regulating the pressure of the pressure reducing port (ii).
2. The one-way pressure reducing valve according to claim 1, wherein the valve core (1) is provided with a first liquid groove (c3) and a second liquid groove (c1) from right to left in sequence along the circumferential direction, and the first liquid groove (c3) is communicated with the liquid passing hole (a12) and is matched with the liquid inlet (b2) to form the throttling channel; one end of the second liquid groove (c1) is communicated with the one-way liquid outlet hole (a14), and the other end of the second liquid groove is communicated with the liquid passing port (b3) to form the one-way channel.
3. The one-way pressure reducing valve according to claim 1, wherein the valve core (1) is provided with a third fluid groove (c2) and a fluid discharge channel (a15), and the valve sleeve (2) is provided with a fluid discharge port (b4) in a matching manner, the third fluid groove (c2) is circumferentially arranged at the end of the valve core (1), one end of the fluid discharge channel (a15) is communicated with the fluid through hole (a12), and the other end thereof is communicated with the third fluid groove (c2), so that the redundant fluid flows into the third fluid groove (c2) from the fluid discharge channel (a15) and is then discharged from the fluid discharge port (b4) through the gap between the valve core (1) and the valve sleeve (2).
4. The one-way pressure reducing valve according to claim 1, wherein the spool (1) and the valve housing (2) have stepped structures at the right end thereof to form a buffer chamber (e) by cooperating with each other to slow down the oscillation of the spool (1).
5. The one-way pressure reducing valve according to claim 1, wherein the pressure regulating unit comprises a pressure regulating spring (14) and a sealing assembly, wherein one end of the pressure regulating spring (14) extends into the interior of the valve housing (2) and abuts against the valve core (1), and the other end thereof is placed in the interior of the sealing assembly and abuts against the same; the sealing component is connected with the tail part of the valve sleeve (2) to seal the valve sleeve.
6. A one-way pressure reducing valve according to claim 5, characterized in that the sealing assembly comprises a threaded sleeve (16) and a second spring seat (17), the threaded sleeve (16) being connected to the rear portion of the valve housing (2), the second spring seat (17) being provided inside the threaded sleeve (16) for abutting against the pressure regulating spring (14).
7. The one-way pressure reducing valve according to claim 6, wherein the sealing assembly further comprises an adjusting rod (19) and a locking nut (20), the adjusting rod (19) extends into the threaded sleeve (16) and is embedded and installed with the second spring seat (17), and the locking nut (20) is connected with the tail part of the adjusting rod (19) and is used for adjusting the compression degree of the pressure regulating spring (14) so as to adjust the pressure reducing effect of the one-way pressure reducing valve.
8. The one-way pressure reducing valve according to claim 7, characterized in that a connecting sleeve (10), a second steel ball (12) and a first spring seat (13) are sequentially arranged between the pressure regulating spring (14) and the valve core (1) from right to left, the right end of the connecting sleeve (10) is embedded with the valve core (1), and the left end of the connecting sleeve is connected with the first spring seat (13) through the second steel ball (12) so as to avoid the pressure regulating process from influencing the valve core (1); one end of the first spring seat (13) is propped against the connecting sleeve (10) to limit, and the other end of the first spring seat is propped against the pressure regulating spring (14).
9. The one-way pressure reducing valve according to claim 1, wherein the one-way assembly comprises a one-way spring (6) and a first steel ball (5) which are connected with each other, and the one-way spring (6) drives the first steel ball (5) to move during operation so as to control the opening and closing of the one-way passage.
10. The one-way pressure reducing valve according to any one of claims 1 to 9, wherein a one-way liquid inlet channel (a13) is arranged between the pressure reducing liquid channel (a11) and the one-way valve channel (d), and the diameter of the one-way liquid inlet channel (a13) is smaller than that of the pressure reducing liquid channel (a 11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264419.4A CN113983018B (en) | 2021-10-28 | 2021-10-28 | One-way pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264419.4A CN113983018B (en) | 2021-10-28 | 2021-10-28 | One-way pressure reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113983018A true CN113983018A (en) | 2022-01-28 |
| CN113983018B CN113983018B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111264419.4A Active CN113983018B (en) | 2021-10-28 | 2021-10-28 | One-way pressure reducing valve |
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| Country | Link |
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| CN (1) | CN113983018B (en) |
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| CN110671520A (en) * | 2019-10-12 | 2020-01-10 | 段井胜 | One-way pressure reducing valve with safety function |
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| CN213982141U (en) * | 2020-10-30 | 2021-08-17 | 宁波三安制阀有限公司 | Pressure reducing one-way valve |
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| CN101625043A (en) * | 2009-08-13 | 2010-01-13 | 凯迈（洛阳）气源有限公司 | High-pressure reducing valve |
| CN203257782U (en) * | 2013-05-17 | 2013-10-30 | 上海七洋液压机械有限公司 | One-way reducing valve |
| CN107842381A (en) * | 2017-10-26 | 2018-03-27 | 鸿大智能机械有限公司 | Automatic unloading hydraulic control one-way valve |
| CN108413085A (en) * | 2018-05-22 | 2018-08-17 | 重庆邮电大学 | A kind of pressure-relief one-way valve |
| CN211474972U (en) * | 2019-07-22 | 2020-09-11 | 宜宾三江机械有限责任公司 | Pressure reducing valve with slide valve structure |
| CN210623710U (en) * | 2019-09-06 | 2020-05-26 | 新乡航空工业(集团)有限公司 | Pressure regulating valve |
| CN210950043U (en) * | 2019-10-11 | 2020-07-07 | 杭州新纪元安全产品有限公司 | Check valve with pressure reducing adjusting function |
| CN110671520A (en) * | 2019-10-12 | 2020-01-10 | 段井胜 | One-way pressure reducing valve with safety function |
| CN110686105A (en) * | 2019-10-12 | 2020-01-14 | 段井胜 | Pilot-operated type pressure reducing valve |
| CN212717447U (en) * | 2020-08-05 | 2021-03-16 | 天津普兰索力水射流设备科技有限公司 | One-way pressure reducing stop valve for energy accumulator of ship rust remover |
| CN213332569U (en) * | 2020-10-08 | 2021-06-01 | 天津普兰索力水射流设备科技有限公司 | Pressure regulating type one-way pressure reducing stop valve of energy accumulator of ship rust remover |
| CN213982141U (en) * | 2020-10-30 | 2021-08-17 | 宁波三安制阀有限公司 | Pressure reducing one-way valve |
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| CN113983018B (en) | 2023-08-18 |
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