CN117570228A - Pressure measuring one-way valve - Google Patents
Pressure measuring one-way valve Download PDFInfo
- Publication number
- CN117570228A CN117570228A CN202311679314.4A CN202311679314A CN117570228A CN 117570228 A CN117570228 A CN 117570228A CN 202311679314 A CN202311679314 A CN 202311679314A CN 117570228 A CN117570228 A CN 117570228A
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- China
- Prior art keywords
- valve
- pressure
- pressure measuring
- valve core
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000007788 liquid Substances 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 80
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- 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
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
- F16K15/065—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring spring pulling the closure member against the seat
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a pressure measuring one-way valve, which relates to the technical field of hydraulic pressure, wherein when the hydraulic pressure at an oil inlet is greater than that of an oil outlet, a liquid channel between a valve core and a valve seat is opened, the hydraulic oil at the oil inlet flows to the oil outlet along the liquid channel, when the hydraulic pressure at the oil inlet is less than that of the oil outlet, the valve core is tightly attached to the valve seat, the liquid channel is closed, the hydraulic pressure is stored in the valve to detect the peak pressure of the liquid inlet, and the hydraulic oil at the oil outlet can flow back to the oil inlet along a fit gap between the valve core and a valve sleeve and a radial hole and an axial hole on the valve core, so that the reverse leakage is realized, the hydraulic pressure in the one-way valve is reduced, few instantaneous overpressure signals are filtered out, the technical problems that the traditional one-way valve in the prior art is not reduced in pressure when the system pressure is reduced, and when the next pressure peak comes to temporarily, the instantaneous overpressure signals continuously lift the pressure behind the one-way valve, and the safety alarm is triggered are solved.
Description
Technical Field
The invention relates to the technical field of hydraulic pressure, in particular to a pressure measuring one-way valve.
Background
In industrial hydraulic pressure, along with the diversification of system functions, high-frequency fluctuation system pressure often appears, and in order to ensure the safety of the system, the control system needs to detect the pressure of the system in real time. The pressure signal is captured by the pressure switch to judge, and the machine is stopped when the pressure signal is out of tolerance, so that the safety is ensured. In reciprocating hydraulic systems, the pressure typically fluctuates drastically periodically, and direct pressure detection often causes erroneous decisions by the control system and reduces the service life of the load cell because of the presence of a small number of instantaneous overpressure signals, which, although high, have a very short time, do not affect the safety of the system and are therefore not the subject of the control system's acquisition. There is therefore a need for a one-way valve that captures and maintains the peak of the pulsating pressure and filters a small number of transient overpressure signals.
Because the common check valve has good reverse sealing performance, peak pressure can be captured and pressure is maintained when the system pressure rises, but the pressure cannot drop when the system pressure drops, and when the next pressure peak comes, the pressure behind the check valve can be continuously lifted by a few instantaneous overpressure signals, so that safety alarm is triggered.
Disclosure of Invention
The invention aims to provide a pressure measuring one-way valve, which solves the technical problems that the pressure of a traditional one-way valve in the prior art cannot be reduced when the pressure of the system is reduced, and when the next pressure peak value comes, an instantaneous overpressure signal can continuously raise the pressure behind the one-way valve to trigger a safety alarm.
The invention provides a pressure measurement one-way valve, which comprises a shell, a valve seat, a valve core and a valve sleeve, wherein the valve seat is arranged on the shell;
the two ends of the shell are respectively provided with an oil inlet and an oil outlet, and the interior of the shell is provided with a mounting hole communicated with the oil inlet and the oil outlet;
the valve seat, the valve core and the valve sleeve are all arranged in the mounting hole;
the valve body is provided with a valve seat, a valve core is arranged on the valve seat, a gap is reserved between one end face of the valve core and the valve seat, so that a liquid channel is formed, and the valve core can be tightly attached to the valve seat to close the liquid channel;
the other end of the valve core extends into the valve sleeve, and a gap is formed between the valve core and the inner wall of the valve sleeve;
the valve core is provided with an axial hole arranged along the axial direction and a radial hole arranged along the radial direction, and liquid oil at the oil outlet can flow into the oil inlet along the gap, the radial hole and the axial hole.
In an alternative embodiment of the present invention,
the end part of the valve core is provided with a hemispherical part with a hemispherical shape;
the middle part of the valve seat is provided with a communication hole, the communication hole is communicated with the oil inlet, and the valve seat is provided with a conical sealing surface;
the hemispherical surface of the hemispherical portion surface can be tightly attached to the conical sealing surface, so that the hemispherical portion seals the oil inlet.
In an alternative embodiment of the present invention,
the hemispherical surface of the hemispherical portion surface may have a space with the conical sealing surface to form the liquid passage along which the liquid flowing in from the oil inlet flows.
In an alternative embodiment of the present invention,
the valve core is provided with a cylindrical part, the cylindrical part is connected with the hemispherical part, and the cylindrical part is provided with the radial hole;
the middle part of the valve pocket is provided with an assembly hole, the cylindrical part stretches into the assembly hole, and the gap is formed between the outer wall of the cylindrical part and the hole wall of the assembly hole.
In an alternative embodiment of the present invention,
the valve housing is provided with a plurality of liquid flow holes along which liquid flowing along the liquid passage enters the oil outlet.
In an alternative embodiment of the present invention,
the valve sleeve is in threaded connection with the mounting hole;
the valve sleeve is provided with an abutting bulge, the valve seat is provided with a notch to form a step surface, and the abutting bulge stretches into the notch to abut against the bottom surface of the step surface so as to limit the valve seat in the mounting hole.
In an alternative embodiment of the present invention,
the pressure measuring one-way valve further comprises a plug;
the plug is in threaded connection with the mounting hole and is abutted against one side of the valve sleeve away from the valve seat;
the middle part of the plug is provided with an oil outlet, and the oil outlet is communicated with the oil outlet.
In an alternative embodiment of the present invention,
and a counter bore is formed in one side, away from the valve sleeve, of the plug so as to facilitate disassembly and assembly of the plug.
In an alternative embodiment of the present invention,
the pressure measuring check valve further comprises an elastic piece;
one end of the elastic piece is connected with the valve core, the other end of the elastic piece is connected with the plug, and the elastic piece is configured to enable the valve core to have a movement trend away from the plug so as to enable the valve core to be tightly attached to the valve seat.
In an alternative embodiment of the present invention,
the plug is provided with a mounting groove on one side facing the valve core, and the mounting groove is used for the elastic piece to extend in.
According to the pressure measuring one-way valve provided by the invention, when the hydraulic pressure at the oil inlet is greater than the hydraulic pressure of the oil outlet, the liquid channel between the valve core and the valve seat is opened, the hydraulic oil at the oil inlet flows to the oil outlet along the liquid channel, when the hydraulic pressure at the oil inlet is less than the hydraulic pressure of the oil outlet, the valve core is clung to the valve seat, the liquid channel is closed, the hydraulic pressure is stored in the valve to detect the peak pressure of the liquid inlet, and the hydraulic oil at the oil outlet can flow back to the oil inlet along the fit gap between the valve core and the valve sleeve, the radial hole and the axial hole on the valve core, so that reverse leakage is realized, the hydraulic pressure in the one-way valve is reduced, few instantaneous overpressure signals are filtered, the technical problems that the pressure of the traditional one-way valve in the prior art cannot drop when the system pressure drops, and when the next pressure peak is temporary, the instantaneous overpressure signal continuously lifts the pressure behind the one-way valve, and the safety alarm is triggered are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a structure of a valve core in a closed state in a pressure measuring check valve according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a valve core in an open state in the pressure measurement check valve according to the embodiment of the present invention;
FIG. 3 is a cross-sectional view of a housing in a pressure check valve according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a valve seat in a pressure measuring check valve according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a valve core in a pressure measuring check valve according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a valve housing in a pressure measuring check valve according to an embodiment of the present invention;
fig. 7 is a structural cross-sectional view of a plug in a pressure measurement check valve according to an embodiment of the present invention.
Icon: 100-a housing; 110-oil inlet; 120-oil outlet; 130-mounting holes; 200-valve seat; 210-a communication hole; 220-conical sealing surface; 300-valve core; 310-axial hole; 320-radial holes; 330-hemispherical portion; 340-a cylindrical portion; 400-valve sleeve; 410-fitting holes; 420-abutment projections; 430-a liquid flow aperture; 500-elastic members; 600-plugs; 610-oil outlet holes; 620-counter bore; 630-mounting slots; 700-liquid channel.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The common check valve has good reverse sealing performance, can catch peak pressure and pressurize when system pressure rises, but when system pressure falls, pressure can not fall, and when next pressure peak comes temporarily, a few instantaneous superpressure signals can continuously rise the pressure behind the check valve, triggers the safety alarm.
In view of this, as shown in fig. 1, 2 and 3, the pressure measuring check valve provided in the present embodiment includes a housing 100, a valve seat 200, a valve core 300 and a valve housing 400; the casing 100 is configured as a cylindrical structure, an oil inlet 110 and an oil outlet 120 are respectively provided at two ends of the casing 100, a mounting hole 130 communicated with the oil inlet 110 and the oil outlet 120 is provided in the casing 100, the mounting hole 130 is used for mounting other components, the valve seat 200, the valve core 300, the valve sleeve 400, the elastic member 500 and the plug 600 are all arranged in the mounting hole 130, and liquid oil enters from the oil inlet 110, flows through the mounting hole 130 and flows out from the oil outlet 120.
The valve core 300 has an open state and a closed state, when the pressure of the liquid in the oil inlet 110 is higher than the pressure of the oil outlet 120, the valve core 300 is in the open state, the valve core 300 is acted by the liquid impact force, a space is formed between one end face of the valve core 300 and the valve seat 200, a liquid channel 700 is formed, and the liquid oil flowing in from the oil inlet 110 flows to the oil outlet 120 along the liquid channel 700, and flows out from the oil outlet 120.
When the liquid pressure of the oil inlet 110 is lower than the liquid pressure of the oil outlet 120, the valve core 300 is in a closed state, and the liquid of the oil outlet 120 acts on the valve core 300 due to the higher liquid pressure of the oil outlet 120, so that the valve core 300 can be tightly attached to the valve seat 200, the liquid channel 700 is closed, and the peak value of the pulsation pressure is captured and the pressure maintaining is realized.
One end of the valve core 300 far away from the valve seat 200 stretches into the valve sleeve 400, a gap is formed between the valve core 300 and the inner wall of the valve sleeve 400, the gap is a fit gap, the valve core 300 is convenient to stretch into the valve sleeve 400, the valve core 300 is provided with an axial hole 310 arranged along the axial direction and a radial hole 320 arranged along the radial direction, liquid oil at the oil outlet 120 can flow into the oil inlet 110 along the gap, the radial hole 320 and the axial hole 310, the liquid oil at the oil outlet 120 is returned to the oil inlet 110, reverse leakage is realized, the liquid pressure in the pressure measuring check valve is reduced, and a few instantaneous overpressure signals are filtered.
According to the pressure measuring check valve provided by the embodiment, when the liquid oil pressure at the oil inlet 110 is greater than the liquid pressure of the oil outlet 120, the liquid channel 700 between the valve core 300 and the valve seat 200 is opened, the liquid oil at the oil inlet 110 flows to the oil outlet 120 along the liquid channel 700, when the liquid oil pressure at the oil inlet 110 is smaller than the liquid pressure of the oil outlet 120, the valve core 300 is tightly attached to the valve seat 200, the liquid channel 700 is closed, the liquid pressure is stored in the valve so as to detect the peak liquid inlet pressure, and the liquid oil at the oil outlet 120 can flow back to the oil inlet 110 along the fit gap between the valve core 300 and the valve sleeve 400, the radial hole 320 and the axial hole 310 on the valve core 300, so that reverse leakage is realized, the liquid pressure in the check valve is reduced, few instantaneous overpressure signals are filtered, when the system pressure of the traditional check valve in the prior art is reduced, when the next pressure peak value comes, the instantaneous overpressure signals can continuously raise the pressure behind the check valve, and the technical problem of safety alarm is triggered.
Based on the above embodiment, as shown in fig. 4 and 5, in an alternative embodiment, the end portion of the valve core 300 in the pressure measuring check valve provided in this embodiment has a hemispherical portion 330, one side of the valve seat 200, which is close to the valve core 300, has a conical sealing surface 220, when the valve core 300 is in a closed state, the hemispherical surface of the hemispherical portion 330 is closely attached to the conical sealing surface 220, and the liquid channel 700 is closed.
The middle part of disk seat 200 is provided with the intercommunicating pore 210, and intercommunicating pore 210 and oil inlet 110 communicate, and when case 300 is in the closed condition, hemisphere face and the conical sealing surface 220 of hemisphere portion 330 surface closely laminate, with intercommunicating pore 210 shutoff, the liquid oil that flows in from oil inlet 110 can't get into mounting hole 130.
When the valve body 300 is in the open state, the hemispherical surface of the hemispherical portion 330 surface can have a space with the conical sealing surface 220 to form a liquid channel 700, and the liquid flowing in from the oil inlet 110 flows along the liquid channel 700.
In an alternative embodiment, the valve core 300 has a cylindrical portion 340, the cylindrical portion 340 is connected with the hemispherical portion 330, it should be noted that the cylindrical portion 340 and the hemispherical portion 330 are integrally formed, an axial hole 310 is formed in the middle of the cylindrical portion 340 and the hemispherical portion 330, a radial hole 320 is formed in the cylindrical portion 340, and the radial hole 320 is communicated with the axial hole 310; the valve housing 400 has a fitting hole 410 in the middle thereof, a cylindrical portion 340 is inserted into the fitting hole 410, and a gap is formed between the outer wall of the cylindrical portion 340 and the wall of the fitting hole 410.
Because the clearance is provided between the cylindrical part 340 and the assembly hole 410, the installation and the disassembly of the integral valve core 300 are convenient, so that the valve cores 300 with different aperture specifications can be replaced, different pressure measuring and throttling effects are realized, and different pressure releasing speed requirements can be met.
Because the pressure is different, for example, when the pressure to be measured is low, the radial holes 320 and the axial holes 310 need to be reduced, otherwise, because the compressible volume is small when the pressure is low, the flow with small through flow can cause great fluctuation of the pressure behind the valve, and the stability of pressure acquisition is affected, so that the pore sizes of the radial holes 320 and the axial holes 310 need to be adjusted according to the actual working condition.
In an alternative embodiment, valve housing 400 is provided with a plurality of fluid flow holes 430, and fluid entering from inlet 110 flows into fluid flow holes 430 through fluid passage 700, fluid in fluid flow holes 430 flows into outlet 120, and finally fluid is discharged from outlet 120.
As shown in fig. 6, in an alternative embodiment, the valve sleeve 400 is screwed in the mounting hole 130, the valve sleeve 400 which is screwed is easier to assemble, the valve sleeve 400 is provided with an abutting protrusion 420, the outer circumference of one side of the valve seat 200 facing the valve sleeve 400 is provided with a notch to form a step surface, during the installation of the valve sleeve 400, the abutting protrusion 420 stretches into the notch to abut against the bottom surface of the step surface, so that the position of the valve seat 200 in the mounting hole 130 can be pushed, and the step formed by the screwed connection of the valve sleeve 400 and the inner wall of the shell 100 faces the valve seat 200 to be limited and fixed.
In an alternative embodiment, as shown in fig. 7, the pressure check valve further includes a plug 600; the outer wall of the plug 600 is provided with an external thread section, the plug 600 is installed in the installation hole 130 through the external thread section in a threaded manner, the plug 600 is positioned on one side of the valve sleeve 400 far away from the valve seat 200, and the plug 600 is abutted with the valve sleeve 400; the oil outlet hole 610 is provided in the middle of the cap 600, the oil outlet hole 610 communicates with the oil outlet 120, and the liquid oil flowing out of the liquid flow hole 430 flows into the oil outlet 120 along the oil outlet hole 610.
In an alternative embodiment, the side of the plug 600 away from the valve sleeve 400 is provided with a counterbore 620, and the counterbore 620 may be provided as a hexagonal counterbore 620 to facilitate the screwing and dismounting of the plug 600.
In an alternative embodiment, the pressure measuring check valve further includes an elastic member 500, the elastic member 500 is specifically configured as a compression spring, one end of the elastic member 500 is connected to the valve core 300, the other end of the elastic member 500 is connected to the plug 600, the elastic member 500 is configured to enable the valve core 300 to have a movement trend away from the plug 600, when the liquid pressure of the oil inlet 110 is lower than the pressure of the oil outlet 120, under the action of the elastic force of the elastic member 500 and the action of the liquid pressure in the liquid outlet, the valve core 300 can be tightly attached to the valve seat 200, and the valve core 300 is closed.
In an alternative embodiment, a mounting groove 630 is formed on a side of the plug 600 facing the valve core 300, the mounting groove 630 is formed by recessing the plug 600 in a direction away from the valve sleeve 400, and the elastic member 500 extends into the mounting groove 630 when being mounted, so that the radial movement of the elastic member 500 is effectively avoided by the mounting groove 630.
The pressure measuring one-way valve provided by the embodiment realizes controllable reverse leakage by adjusting the machining gap and the hole size of the valve core 300 and the valve sleeve 400, and can maintain pressure in an operation state and automatically release pressure in a stop operation state; because the valve core 300 does not need to frequently act after capturing peak pressure, the whole valve has extremely high service life; the conical surface and the spherical surface are matched and have good tightness; the whole structure is simple to install, convenient to process, compact in structure and convenient for system integration.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The pressure measuring one-way valve is characterized by comprising a shell (100), a valve seat (200), a valve core (300) and a valve sleeve (400);
the two ends of the shell (100) are respectively provided with an oil inlet (110) and an oil outlet (120), and the interior of the shell (100) is provided with a mounting hole (130) communicated with the oil inlet (110) and the oil outlet (120);
the valve seat (200), the valve core (300) and the valve sleeve (400) are all arranged in the mounting hole (130);
an end face of the valve core (300) can be spaced from the valve seat (200) to form a liquid channel (700), and the valve core (300) can be tightly attached to the valve seat (200) to close the liquid channel (700);
the other end of the valve core (300) extends into the valve sleeve (400) and is provided with a gap with the inner wall of the valve sleeve (400);
the valve core (300) is provided with an axial hole (310) arranged along the axial direction and a radial hole (320) arranged along the radial direction, and liquid oil at the oil outlet (120) can flow into the oil inlet (110) along the gap, the radial hole (320) and the axial hole (310).
2. The pressure measuring one-way valve of claim 1, wherein,
the end part of the valve core (300) is provided with a hemispherical part (330) with a hemispherical shape;
a communication hole (210) is formed in the middle of the valve seat (200), the communication hole (210) is communicated with the oil inlet (110), and the valve seat (200) is provided with a conical sealing surface (220);
the hemispherical surface of the hemispherical portion (330) can be tightly attached to the conical sealing surface (220), so that the hemispherical portion (330) seals the oil inlet (110).
3. The pressure measuring one-way valve of claim 2, wherein,
the hemispherical surface of the hemispherical portion (330) may have a space with the conical sealing surface (220) to form the liquid channel (700), and the liquid flowing in from the oil inlet (110) flows along the liquid channel (700).
4. A pressure measuring one-way valve according to claim 3, wherein,
the valve core (300) is provided with a cylindrical part (340), the cylindrical part (340) is connected with the hemispherical part (330), and the cylindrical part (340) is provided with the radial hole (320);
the middle part of the valve sleeve (400) is provided with an assembly hole (410), the cylindrical part (340) stretches into the assembly hole (410), and the gap is formed between the outer wall of the cylindrical part (340) and the hole wall of the assembly hole (410).
5. A pressure measuring one-way valve according to claim 3, wherein,
the valve housing (400) is provided with a plurality of liquid flow holes (430), and liquid flowing along the liquid passage (700) enters the oil outlet (120) along the liquid flow holes (430).
6. The pressure measuring one-way valve of claim 5, wherein,
the valve sleeve (400) is in threaded connection with the mounting hole (130);
the valve sleeve (400) is provided with an abutting protrusion (420), the valve seat (200) is provided with a notch forming step surface, and the abutting protrusion (420) stretches into the notch to abut against the bottom surface of the step surface so as to limit the valve seat (200) in the mounting hole (130).
7. A pressure measuring one-way valve according to any one of claims 1 to 6, wherein,
the pressure measuring check valve further comprises a plug (600);
the plug (600) is in threaded connection with the mounting hole (130), and the plug (600) is abutted against one side of the valve sleeve (400) away from the valve seat (200);
an oil outlet (610) is formed in the middle of the plug (600), and the oil outlet (610) is communicated with the oil outlet (120).
8. The pressure measuring one-way valve of claim 7, wherein,
and a counter bore (620) is formed in one side, away from the valve sleeve (400), of the plug (600), so that the plug (600) can be conveniently disassembled and assembled.
9. The pressure measuring one-way valve of claim 7, wherein,
the pressure measuring check valve further comprises an elastic piece (500);
one end of the elastic piece (500) is connected with the valve core (300), the other end of the elastic piece (500) is connected with the plug (600), and the elastic piece (500) is configured to enable the valve core (300) to have a movement trend away from the plug (600), so that the valve core (300) is tightly attached to the valve seat (200).
10. The pressure measuring one-way valve of claim 9, wherein,
the side of the plug (600) facing the valve core (300) is provided with a mounting groove (630), and the mounting groove (630) is used for the elastic piece (500) to extend in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311679314.4A CN117570228A (en) | 2023-12-07 | 2023-12-07 | Pressure measuring one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311679314.4A CN117570228A (en) | 2023-12-07 | 2023-12-07 | Pressure measuring one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117570228A true CN117570228A (en) | 2024-02-20 |
Family
ID=89895477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311679314.4A Pending CN117570228A (en) | 2023-12-07 | 2023-12-07 | Pressure measuring one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117570228A (en) |
-
2023
- 2023-12-07 CN CN202311679314.4A patent/CN117570228A/en active Pending
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