CN110864145A - Opening pressure adjustable plug-in mounting type high-pressure one-way valve - Google Patents
Opening pressure adjustable plug-in mounting type high-pressure one-way valve Download PDFInfo
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- CN110864145A CN110864145A CN201910974877.3A CN201910974877A CN110864145A CN 110864145 A CN110864145 A CN 110864145A CN 201910974877 A CN201910974877 A CN 201910974877A CN 110864145 A CN110864145 A CN 110864145A
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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Abstract
The invention discloses a cartridge type high-pressure one-way valve with adjustable opening pressure, which comprises a valve body, a valve core, a spring seat, an adjusting part and an exhaust structure, wherein the valve core, the spring seat and the adjusting part are all arranged in the valve body, the outer wall of the valve core is in sliding seal with the inner wall of the valve body, the right end face of the valve core is in plane seal with the inner end face of the valve body, a first through hole is formed in the side wall of the valve core, a spring cavity is formed in the valve core, one end of the spring is abutted against the valve core, the other end of the spring is abutted against the spring seat, the spring seat is abutted against the adjusting part, the fixed position of the adjusting part in the valve body can be adjusted, when the exhaust structure is an exhaust hole arranged on the outer wall. The invention has the advantages of convenient insertion, quick replacement, adjustable opening pressure, smooth opening and closing, good sealing effect, strong stability and prolonged service life.
Description
Technical Field
The invention relates to the field of natural gas pressurizing gathering and transportation equipment. More particularly, the invention relates to a cartridge type high-pressure one-way valve with adjustable opening pressure.
Background
The one-way valve is a valve in which fluid flows along the water inlet and the medium at the water outlet cannot flow back. The forward direction of the one-way valve is to realize the opening function by the pressure of the flowing fluid to overcome the elastic load of the elastic element, and the reverse direction is to realize the closing function by the elastic element to drive the valve plug when no fluid pressure exists. Check valves are used in hydraulic systems to prevent reverse flow of oil or in pneumatic systems to prevent reverse flow of compressed gas.
In the natural gas pressurization process, the compressor is a key device of the system and is divided into two types, namely a traditional mechanical compressor and a hydraulic compressor. The hydraulic compressor is a novel product, has simple structure, low energy consumption and small vibration, and has the advantage of being worthy of being popularized in a large number. The high-pressure one-way valve is an essential component of the hydraulic compressor, and has high working pressure, high flow rate and high opening and closing frequency. Most of conventional check valves are metal spherical surface sealing or conical surface sealing, and have high processing precision and high manufacturing cost. In addition, in the use process of the hydraulic compressor, the one-way valve has long continuous working time, high switching cycle frequency, poor reliability and short service life, and the sealing surface of the conventional one-way valve is often damaged by impact.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide the cartridge type high-pressure one-way valve with adjustable opening pressure, which is convenient to cartridge, quick to replace, adjustable in opening pressure, smooth to open, good in sealing effect, strong in stability and long in service life.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a cartridge type high pressure check valve with adjustable cracking pressure, comprising:
the right end surface of the valve body is provided with an air inlet, and the right end of the inner side wall of the valve body is provided with at least one air guide cavity;
the valve core is arranged in the valve body, the outer wall of the valve core is in sliding seal with the inner wall of the valve body, a spring cavity is arranged in the valve core, and at least one first through hole is arranged on the side wall of the valve core, wherein the first through hole is positioned at one end of the outer wall of the valve core and is communicated with the air guide cavity, and the first through hole is positioned at one end of the inner wall of the valve core and is communicated with the spring cavity;
the spring is arranged in the spring cavity, the right end of the spring is abutted against the inner end face on the right side of the valve core, and the left end of the spring is abutted against a spring seat;
the adjusting piece is arranged in the valve body, the right end of the adjusting piece is abutted against the spring seat, and the fixed position of the adjusting piece in the valve body can be adjusted so as to adjust the distance from the left end of the spring to the right end of the valve body;
and the air exhaust structure is communicated with the air inlet hole and the air guide cavity so as to exhaust air from the valve body.
Preferably, the exhaust structure is at least one exhaust hole, the exhaust hole is circumferentially arranged on the side wall of the valve body, and one end of the exhaust hole, which is positioned on the inner wall of the valve body, is communicated with the air guide cavity;
when the right end of the spring moves rightwards to the limit, the right end of the valve core is abutted against the inner end face of the right side of the valve body, the right end face of the valve core is sealed with the inner end face of the valve body in a plane manner, one end, located on the outer wall of the valve core, of the first through hole is communicated with the air guide cavity, and the spring cavity, the first through hole, the air guide cavity and the exhaust hole are communicated;
when the right end of the spring moves to the limit leftwards, the right end of the valve core is separated from the inner end face of the right side of the valve body, a gap is formed between the right end face of the valve core and the inner end face of the valve body, one end, located on the outer wall of the valve core, of the first through hole is communicated with the air guide cavity, and the air inlet hole, the air guide cavity and the air exhaust hole are communicated.
Preferably, the exhaust mechanism comprises a second through hole arranged in the middle of the spring seat and a third through hole arranged in the middle of the adjusting part, and the second through hole is communicated with the third through hole;
when the right end of the spring moves rightwards to the limit, the right end of the valve core is abutted against the inner end face of the right side of the valve body, the right end face of the valve core is in plane seal with the inner end face of the valve body, and the spring cavity, the second through hole and the third through hole are communicated;
when the right end of the spring moves to the limit leftwards, the right end of the valve core is separated from the inner end face of the right side of the valve body, a gap is formed between the right end face of the valve core and the inner end face of the valve body, the first through hole is located at one end of the outer wall of the valve core and communicated with the air guide cavity, and the air inlet hole, the air guide cavity, the first through hole, the spring cavity, the second through hole and the third through hole are communicated.
Preferably, an annular groove is formed in the right end face of the valve core, a sealing piece is arranged in the groove, the inner diameter of the groove is larger than the size of the air inlet hole, and the sealing piece is made of any one of polytetrafluoroethylene, polyurethane and polyether-ether-ketone.
Preferably, an annular groove is formed in the right end face of the valve core, an elastic ring and a sealing structure are arranged in the groove from inside to outside, the inner diameter of the groove is larger than the size of the air inlet hole, and the sealing structure is made of any one of red copper, stainless steel and engineering plastics.
Preferably, the inner diameter of the groove is larger than the size of the air inlet by more than 2mm, and the outer diameter of the groove is smaller than the outer diameter of the valve core by 0.5-10 mm.
Preferably, at least one annular oil groove is formed on the outer side wall of the valve core.
Preferably, the adjusting part is an adjusting nut, and a receiving groove is formed in the right end face of the adjusting nut, wherein the adjusting nut is in threaded connection with the valve body, and the spring seat is received in the receiving groove.
Preferably, an annular exhaust groove is formed in the outer side wall of the valve body, and one end, located on the outer wall of the valve body, of the exhaust hole is communicated with the exhaust groove.
Preferably, the side wall of the valve body is uniformly provided with 4 exhaust holes along the circumferential direction.
The invention at least comprises the following beneficial effects:
the one-way valve is of an integral structure, and all parts are arranged inside the valve body, so that the one-way valve is convenient to insert and replace quickly;
the adjusting piece of the one-way valve changes the distance from the left end of the spring to the right end of the valve body by adjusting the fixed position of the adjusting piece in the valve body, so that the compression degree of the spring is adjusted, and the opening pressure of the one-way valve is adjustable.
The valve core and the valve body of the one-way valve adopt a plane sealing structure, the right end face of the valve core is provided with a sealing element, the sealing effect is good, the shock resistance is strong, the loss of the sealing element is low, and the material of the sealing element is high temperature resistant and corrosion resistant, so that the service life of the one-way valve is prolonged;
one end of a spring of the check valve is arranged in a spring cavity of the valve core, the other end of the spring is sleeved on the spring seat, the two ends of the spring are positioned on the axis, the spring tension always acts on the axis in the high-frequency reciprocating process, the valve core is not subjected to eccentric wear, the stability and the sealing effect are improved, and the service life of the check valve is prolonged;
the spring of the one-way valve is abutted against the adjusting piece through the spring seat, and circumferential rotation displacement generated by the spring in the repeated compression and rebound process cannot be directly transmitted to the adjusting piece, so that the adjusting piece is prevented from loosening, and the reliability and stability of the one-way valve are improved;
the check valve can be set into a side-through check valve or a straight-through check valve according to the use condition;
when the check valve is a side-through check valve, the spring cavity of the valve core is always communicated with the outside of the valve body through the first through hole, the air guide cavity and the exhaust hole, so that the internal pressure of the check valve is reduced, the check valve is opened and closed more smoothly, the stress of parts is reduced, and the service life of the check valve is prolonged;
and when the one-way valve is a straight-through one-way valve, the spring cavity of the valve core is communicated with the outside of the valve body through the second through hole and the third through hole all the time, so that the internal pressure of the one-way valve is reduced, the one-way valve is opened and closed more smoothly, the stress of parts is reduced, and the service life of the one-way valve is prolonged.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a structural schematic diagram of a closed state of a cartridge type high-pressure one-way valve with adjustable opening pressure according to one technical scheme of the invention;
FIG. 2 is a structural diagram of an open state of the cartridge type high-pressure one-way valve with adjustable cracking pressure according to one technical scheme of the invention;
FIG. 3 is a schematic structural diagram of a closed state of the cartridge type high-pressure check valve with adjustable opening pressure according to one embodiment of the invention;
FIG. 4 is a structural diagram of an open state of the cartridge type high-pressure one-way valve with adjustable cracking pressure according to one embodiment of the invention;
fig. 5 is a schematic structural diagram of the valve core according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of the spring assembly according to one embodiment of the present invention;
fig. 7 is a schematic structural diagram of the exhaust groove on the outer wall of the valve body according to one embodiment of the invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It should be noted that in the description of the present invention, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 7, the present invention provides a cartridge type high-pressure check valve with adjustable opening pressure, comprising:
the valve comprises a valve body 1, wherein an air inlet 6 is arranged on the right end surface of the valve body 1, at least one air guide cavity 7 is arranged on the right end of the inner side wall of the valve body 1, and the air guide cavity is arranged on the valve body so that air entering the valve body from the air inlet can enter the air guide cavity;
the valve core 2 is arranged inside the valve body 1, the outer wall of the valve core 2 is in sliding seal with the inner wall of the valve body 1, a spring cavity 9 is arranged in the valve core 2, and at least one first through hole 11 is arranged on the side wall of the valve core 2, wherein the first through hole 11 is positioned at one end of the outer wall of the valve core 2 and is communicated with the gas guide cavity 7, one end of the first through hole 11 positioned at the inner wall of the valve core 2 is communicated with the spring cavity 9, and the first through hole is arranged on the side wall of the valve core so that gas entering the gas guide cavity can enter the spring cavity through the first through hole;
the spring 3 is arranged in the spring cavity 9, the right end of the spring 3 is abutted against the inner end face on the right side of the valve core 2, the left end of the spring 3 is abutted against a spring seat 4, the spring is arranged in the spring cavity to adjust the movement of the valve core according to the air pressure entering the exhaust hole, when the air pressure entering the air inlet hole is larger than the elastic force of the spring, the air pressure pushes the valve core to move leftwards, the one-way valve is opened, and when the air pressure entering the air inlet hole is smaller than the elastic force of the spring, the spring pushes the valve core to move rightwards, and the one-;
the adjusting part is arranged inside the valve body 1, the right end of the adjusting part is abutted against the spring seat 4, the fixed position of the right end of the adjusting part in the valve body 1 can be adjusted to adjust the distance from the left end of the spring 3 to the right end of the valve body 1, the adjusting part with the adjustable fixed position has various types, such as an adjusting nut 5 in threaded connection with the inner wall of the valve body 1, such as a screw rod in clamping connection with the inner wall of the valve body 1, such as the adjusting nut 5 in threaded connection with the inner wall of the valve body 1, and gaskets with different numbers are added between the adjusting nut 5 and the spring seat 4;
the exhaust structure is communicated with the air inlet 6 and the air guide cavity 7 so as to exhaust air from the valve body 1, and various exhaust structures for exhausting air are provided, for example, an exhaust hole 8 is formed in the side wall of the valve body 1, for example, a second through hole 12 is formed in the middle of the spring seat 4, third through holes 13 are respectively formed in the middle of the adjusting part, the second through holes 12 are communicated with the third through holes 13, for example, the exhaust hole 8 is formed in the side wall of the valve body 1, meanwhile, a second through hole 12 is formed in the middle of the spring seat 4, third through holes 13 are respectively formed in the middle of the adjusting part, the second through holes 12 are communicated with the third through holes 13, and the exhaust path of air is adjusted by sealing the exhaust hole 8 or the second through hole 12 or the third through hole 13.
In the technical scheme, the distance from the left end of the spring to the right end of the valve body is changed by adjusting the fixed position of the adjusting piece in the valve body, the compression degree of the spring is adjusted, and the opening pressure of the one-way valve can be adjusted and controlled. When the air pressure passing through the air inlet hole is smaller than the opening pressure of the one-way valve, the one-way valve is in a closed state, the right end face of the valve core is sealed with the plane of the inner end face of the valve body, and external air cannot be discharged through the one-way valve; when the air pressure passing through the air inlet hole is larger than the opening pressure of the one-way valve, the one-way valve is in an open state, a gap is formed between the right end face of the valve core and the inner end face of the valve body, and the gas entering the valve body through the air inlet hole is discharged through the gap, the air guide cavity and the exhaust structure.
In another technical scheme, the exhaust structure is at least one exhaust hole 8, the exhaust hole 8 is circumferentially arranged on the side wall of the valve body 1, and one end of the exhaust hole 8, which is positioned on the inner wall of the valve body 1, is communicated with the air guide cavity 7, so that side-through exhaust of the one-way valve can be realized;
when the right end of the spring 3 moves rightwards to the limit, the right end of the valve core 2 is abutted against the inner end face of the right side of the valve body 1, the right end face of the valve core 2 is sealed with the plane of the inner end face of the valve body 1, one end, located on the outer wall of the valve core 2, of the first through hole 11 is communicated with the air guide cavity 7, the spring cavity 9, the first through hole 11, the air guide cavity 7 and the exhaust hole 8 are communicated, at the moment, the one-way valve is in a closed state, and gas cannot be exhausted through the valve body;
when the right end of the spring 3 moves to the limit leftwards, the right end of the valve core 2 is separated from the inner end face of the right side of the valve body 1, a gap is formed between the right end face of the valve core 2 and the inner end face of the valve body 1, one end of the first through hole, which is located on the outer wall of the valve core 2, is communicated with the air guide cavity 7, the air inlet hole 6, the air guide cavity 7 and the exhaust hole 8, at the moment, the one-way valve is in an open state, and gas entering the valve body from the air inlet hole is discharged through the gap, the air guide cavity and the exhaust.
The spring cavity, the first through hole, the air guide cavity and the exhaust hole of the one-way valve are communicated, so that air pressure in the valve body can be transmitted to the outside of the valve body, the internal pressure of the one-way valve is reduced, the pressure of parts is reduced, the one-way valve is opened and closed more smoothly, and the service life of the one-way valve is prolonged.
In another technical scheme, the exhaust mechanism comprises a second through hole 12 arranged in the middle of the spring seat 4 and a third through hole 13 arranged in the middle of the adjusting part, and the second through hole 12 is communicated with the third through hole 13, so that straight-through exhaust of the one-way valve can be realized;
when the right end of the spring 3 moves rightwards to the limit, the right end of the valve core 2 is abutted against the inner end face of the right side of the valve body 1, the right end face of the valve core 2 is in plane sealing with the inner end face of the valve body 1, the spring cavity 9, the second through hole 12 and the third through hole 13 are communicated, at the moment, the one-way valve is in a closed state, and gas cannot be exhausted through the valve body;
when the right end of the spring 3 moves to the limit leftwards, the right end of the valve core 2 is separated from the inner end face of the right side of the valve body 1, a gap is formed between the right end face of the valve core 2 and the inner end face of the valve body 1, one end, located on the outer wall of the valve core 2, of the first through hole 11 is communicated with the air guide cavity 7, the air inlet hole 6, the air guide cavity 7, the first through hole 11, the spring cavity 9, the second through hole 12 and the third through hole 13 are communicated, at the moment, the one-way valve is in an open state, and gas entering the valve body from the air inlet hole is discharged sequentially through the gap, the air guide cavity, the first through hole, the spring cavity, the second through hole and.
The spring cavity, the second through hole and the third through hole of the one-way valve are communicated, so that air pressure in the valve body can be transmitted to the outside of the valve body, the internal pressure of the one-way valve is reduced, the pressure of parts is reduced, the one-way valve is opened and closed more smoothly, and the service life of the one-way valve is prolonged.
In another technical scheme, an annular groove 14 is formed in the right end face of the valve core 2, a sealing element 10 is arranged in the groove 14, the inner diameter of the groove 14 is larger than the size of the air inlet hole 6, and the sealing element 10 is made of any one of polytetrafluoroethylene, polyurethane and polyether ether ketone. The plane structure with the high polymer material sealing element greatly improves the shock resistance of the valve core, the sealing effect of the one-way valve is good, and meanwhile, the service life of the one-way valve is prolonged.
In another technical scheme, an annular groove 14 is formed in the right end face of the valve element 2, an elastic ring and a sealing structure are arranged on the groove 14 from inside to outside, the inner diameter of the groove 14 is larger than the size of the air inlet 6, and the sealing structure is made of any one of red copper, stainless steel and engineering plastics. The plane structure with the elastic ring and the hard sealing structure further slows down the impact force on the valve core, enhances the sealing effect of the one-way valve and prolongs the service life of the one-way valve.
In another technical scheme, the inner diameter of the groove 14 is larger than the size of the air inlet 6 by more than 2mm, so that the one-way valve can be effectively prevented from being damaged by high-pressure airflow impact, and the outer diameter of the groove 14 is smaller than the outer diameter of the valve core 2 by 0.5-10 mm, so that the sealing effect of the one-way valve is ensured.
In another technical scheme, the outer side wall of the valve core 2 is provided with at least one annular oil groove 15, and a certain amount of grease is stored in the oil groove, so that the effects of lubricating, reducing friction and prolonging the service life of the one-way valve are achieved.
In another technical scheme, the adjusting part is an adjusting nut 5, a receiving groove is formed in the right end face of the adjusting nut 5, the adjusting nut 5 is in threaded connection with the valve body 1, and the spring seat 4 is received in the receiving groove, so that the stability of the spring can be improved, the valve core is prevented from eccentric wear, and the service life of the check valve is prolonged.
In another technical scheme, be equipped with annular exhaust groove 16 on the lateral wall of valve body 1, exhaust hole 8 is located the one end of valve body 1 outer wall with exhaust groove 16 intercommunication, the circumference of being convenient for communicates the exhaust, can make from the diffusion of exhaust hole combustion gas along exhaust groove circumference, reduces gas exhaust's impact force.
In another technical scheme, the side wall of the valve body 1 is uniformly provided with 4 exhaust holes 8 along the circumferential direction, and the side-through type exhaust effect is better.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. Opening pressure adjustable cartridge formula high pressure check valve, its characterized in that includes:
the right end surface of the valve body is provided with an air inlet, and the right end of the inner side wall of the valve body is provided with at least one air guide cavity;
the valve core is arranged in the valve body, the outer wall of the valve core is in sliding seal with the inner wall of the valve body, a spring cavity is arranged in the valve core, and at least one first through hole is arranged on the side wall of the valve core, wherein the first through hole is positioned at one end of the outer wall of the valve core and is communicated with the air guide cavity, and the first through hole is positioned at one end of the inner wall of the valve core and is communicated with the spring cavity;
the spring is arranged in the spring cavity, the right end of the spring is abutted against the inner end face on the right side of the valve core, and the left end of the spring is abutted against a spring seat;
the adjusting piece is arranged in the valve body, the right end of the adjusting piece is abutted against the spring seat, and the fixed position of the adjusting piece in the valve body can be adjusted so as to adjust the distance from the left end of the spring to the right end of the valve body;
and the air exhaust structure is communicated with the air inlet hole and the air guide cavity so as to exhaust air from the valve body.
2. The adjustable-opening-pressure cartridge high-pressure one-way valve according to claim 1, wherein the exhaust structure is at least one exhaust hole, the exhaust hole is circumferentially arranged on the side wall of the valve body, and one end of the exhaust hole, which is positioned on the inner wall of the valve body, is communicated with the air guide cavity;
when the right end of the spring moves rightwards to the limit, the right end of the valve core is abutted against the inner end face of the right side of the valve body, the right end face of the valve core is sealed with the inner end face of the valve body in a plane manner, one end, located on the outer wall of the valve core, of the first through hole is communicated with the air guide cavity, and the spring cavity, the first through hole, the air guide cavity and the exhaust hole are communicated;
when the right end of the spring moves to the limit leftwards, the right end of the valve core is separated from the inner end face of the right side of the valve body, a gap is formed between the right end face of the valve core and the inner end face of the valve body, one end, located on the outer wall of the valve core, of the first through hole is communicated with the air guide cavity, and the air inlet hole, the air guide cavity and the air exhaust hole are communicated.
3. The adjustable opening pressure cartridge high-pressure one-way valve of claim 1, wherein the exhaust mechanism comprises a second through hole arranged in the middle of the spring seat and a third through hole arranged in the middle of the adjusting member, and the second through hole is communicated with the third through hole;
when the right end of the spring moves rightwards to the limit, the right end of the valve core is abutted against the inner end face of the right side of the valve body, the right end face of the valve core is in plane seal with the inner end face of the valve body, and the spring cavity, the second through hole and the third through hole are communicated;
when the right end of the spring moves to the limit leftwards, the right end of the valve core is separated from the inner end face of the right side of the valve body, a gap is formed between the right end face of the valve core and the inner end face of the valve body, the first through hole is located at one end of the outer wall of the valve core and communicated with the air guide cavity, and the air inlet hole, the air guide cavity, the first through hole, the spring cavity, the second through hole and the third through hole are communicated.
4. The cartridge type high-pressure one-way valve with adjustable opening pressure according to claim 1, wherein an annular groove is formed in the right end face of the valve core, a sealing element is arranged in the groove, the inner diameter of the groove is larger than the size of the air inlet hole, and the sealing element is made of any one of polytetrafluoroethylene, polyurethane and polyether ether ketone.
5. The cartridge type high-pressure one-way valve with adjustable opening pressure according to claim 1, wherein the right end face of the valve core is provided with an annular groove, the groove is provided with an elastic ring and a sealing structure from inside to outside, wherein the inner diameter of the groove is larger than the size of the air inlet hole, and the sealing structure is made of any one of red copper, stainless steel and engineering plastics.
6. The cartridge type high-pressure one-way valve with adjustable opening pressure according to claim 4 or 5, wherein the inner diameter of the groove is larger than the size of the air inlet hole by more than 2mm, and the outer diameter of the groove is smaller than the outer diameter of the valve core by 0.5-10 mm.
7. The adjustable cracking pressure cartridge high-pressure check valve of claim 1, wherein the outer side wall of the valve core is provided with at least one annular oil groove.
8. The cartridge type high-pressure check valve with adjustable opening pressure according to claim 1, wherein the adjusting member is an adjusting nut, and a receiving groove is formed in a right end surface of the adjusting nut, wherein the adjusting nut is in threaded connection with the valve body, and the spring seat is received in the receiving groove.
9. The adjustable-opening-pressure cartridge high-pressure one-way valve according to claim 2, wherein an annular exhaust groove is formed in the outer side wall of the valve body, and the exhaust hole is located at one end of the outer wall of the valve body and communicated with the exhaust groove.
10. The adjustable opening pressure cartridge high-pressure one-way valve of claim 2, wherein the side wall of the valve body is uniformly provided with 4 exhaust holes along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974877.3A CN110864145A (en) | 2019-10-14 | 2019-10-14 | Opening pressure adjustable plug-in mounting type high-pressure one-way valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974877.3A CN110864145A (en) | 2019-10-14 | 2019-10-14 | Opening pressure adjustable plug-in mounting type high-pressure one-way valve |
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| CN110864145A true CN110864145A (en) | 2020-03-06 |
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| CN201910974877.3A Pending CN110864145A (en) | 2019-10-14 | 2019-10-14 | Opening pressure adjustable plug-in mounting type high-pressure one-way valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323935A (en) * | 2021-06-16 | 2021-08-31 | 徐州阿马凯液压技术有限公司 | Novel check valve buffer structure |
| CN114508614A (en) * | 2022-01-27 | 2022-05-17 | 西安航空制动科技有限公司 | Cartridge check valve for brake control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349984A (en) * | 1993-01-25 | 1994-09-27 | Halkey-Roberts Corporation | Check valve |
| CN201372978Y (en) * | 2008-12-18 | 2009-12-30 | 上海电气液压气动有限公司 | Oil-compensative cartridge brake valve |
| CN101864983A (en) * | 2010-06-11 | 2010-10-20 | 河南理工大学 | Hydraulic coal wall water injection hole packer |
| CN109000005A (en) * | 2018-09-12 | 2018-12-14 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN208268487U (en) * | 2018-05-30 | 2018-12-21 | 圣邦集团有限公司 | A kind of plug-in one-way valve with guide hole |
| CN208900256U (en) * | 2018-09-12 | 2019-05-24 | 重庆万力联兴实业(集团)有限公司 | Check valve-type fuel oil for vehicles pressure regulator |
-
2019
- 2019-10-14 CN CN201910974877.3A patent/CN110864145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349984A (en) * | 1993-01-25 | 1994-09-27 | Halkey-Roberts Corporation | Check valve |
| CN201372978Y (en) * | 2008-12-18 | 2009-12-30 | 上海电气液压气动有限公司 | Oil-compensative cartridge brake valve |
| CN101864983A (en) * | 2010-06-11 | 2010-10-20 | 河南理工大学 | Hydraulic coal wall water injection hole packer |
| CN208268487U (en) * | 2018-05-30 | 2018-12-21 | 圣邦集团有限公司 | A kind of plug-in one-way valve with guide hole |
| CN109000005A (en) * | 2018-09-12 | 2018-12-14 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN208900256U (en) * | 2018-09-12 | 2019-05-24 | 重庆万力联兴实业(集团)有限公司 | Check valve-type fuel oil for vehicles pressure regulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323935A (en) * | 2021-06-16 | 2021-08-31 | 徐州阿马凯液压技术有限公司 | Novel check valve buffer structure |
| CN113323935B (en) * | 2021-06-16 | 2024-06-25 | 徐州阿马凯液压技术有限公司 | Novel check valve buffer structure |
| CN114508614A (en) * | 2022-01-27 | 2022-05-17 | 西安航空制动科技有限公司 | Cartridge check valve for brake control system |
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Application publication date: 20200306 |