CN114838145A - Pressure reduction pilot valve convenient for pressure detection - Google Patents
Pressure reduction pilot valve convenient for pressure detection Download PDFInfo
- Publication number
- CN114838145A CN114838145A CN202210664258.6A CN202210664258A CN114838145A CN 114838145 A CN114838145 A CN 114838145A CN 202210664258 A CN202210664258 A CN 202210664258A CN 114838145 A CN114838145 A CN 114838145A
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- interface
- connector
- valve body
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000009530 blood pressure measurement Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
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
- 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
-
- 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
-
- 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
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
-
- 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
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a pressure reduction pilot valve convenient for pressure detection, which comprises a valve body, a valve cover, a valve rod, a spring diaphragm type pressure regulating device and a valve clack, wherein the valve cover is arranged on the valve body; the valve body both ends are equipped with the entrance point and the exit end of intercommunication each other respectively, are equipped with the disk seat hole between entrance point and the exit end, and the valve body bottom is equipped with the tee bend switching-over valve, is equipped with first interface, second interface, third interface and switching-over case on the tee bend switching-over valve, and first interface and second interface communicate the entrance point and the exit end of valve body respectively, install pressure sensor on the third interface, and the switching-over case can communicate two arbitrary in first interface, second interface and the third interface at its in-process that removes. The three-way reversing valve is arranged at the bottom of the valve body, so that the pressure sensor can respectively detect the pressure at the inlet end or the outlet end, the purposes of uniformly measuring and reducing the number of pressure measuring pipelines arranged at two ends are achieved, the installation cost of the valve is reduced, and the efficiency and the precision of water pressure measurement are improved.
Description
Technical Field
The invention relates to the field of pipeline valves, in particular to a pressure reduction pilot valve convenient for pressure detection.
Background
At present, a pilot valve of a pressure reducing valve is a direct adjustable pressure reducing valve, adopts a diaphragm type hydraulic operation mode, can be horizontally or vertically arranged in a water supply fire-fighting system or other clear water systems, and can control the outlet pressure of the valve to be a relatively fixed value within a certain flow range. The pressure reducing valve pilot valve is generally constructed by a valve body, a valve cover, a diaphragm pressure adjusting device having a spring adjusting mechanism composed of a spring, an adjusting nut, an adjusting screw, and the like. When the adjusting screw rod is rotated clockwise, the adjusting nut can be driven to push the pressure adjusting spring downwards to increase the pressure; when the adjusting screw rod is rotated anticlockwise, the adjusting nut can be driven to move upwards to release the jacking force on the pressure adjusting spring, so that the pressure is reduced; the structure ensures the most basic pressure regulation function of the pilot valve of the pressure reducing valve, and the pressure measuring pipeline is required to be additionally arranged at the inlet end or the outlet end of the pilot valve of the pressure reducing valve so as to conveniently detect the pressure at the inlet end or the outlet end of the valve in real time.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides the pressure reducing pilot valve convenient for pressure detection, which has a simple structure, saves the cost of additionally arranging a pressure measuring pipeline, and is convenient for uniformly measuring the water pressure at the inlet end or the outlet end of the pressure reducing pilot valve.
The invention adopts the technical scheme for solving the technical problems that: a pressure reduction pilot valve convenient for pressure detection comprises a valve body, a valve cover arranged at the top of the valve body, a valve rod movably arranged in the valve body in a lifting way, and a spring diaphragm type pressure regulating device arranged between the valve body and the valve cover in a sealing way; the utility model discloses a valve body, including valve body, valve body bottom, first interface, second interface, third interface and reversing valve case, the valve body both ends are equipped with the entrance point and the exit end that communicate each other respectively, are equipped with the valve seat hole between entrance point and the exit end, are equipped with seal fit's valve clack on the valve seat hole, valve clack fixed connection valve rod lower extreme, valve rod upper end coupling spring diaphragm formula pressure regulating device, valve body bottom be equipped with three-way reversing valve, be equipped with first interface, second interface, third interface and reversing valve case on the three-way reversing valve, first interface and second interface communicate the entrance point and the exit end of valve body respectively, install pressure sensor on the third interface, reversing valve case can communicate two wantonly in first interface, second interface and the third interface at its in-process that removes.
In order to further improve the structure, the reversing valve core is of a rotary structure, a reversing channel is arranged on the reversing valve core, the central angle of the reversing channel is 120 degrees, and the inner ends of the first connector, the second connector and the third connector are uniformly and circumferentially distributed on the periphery of the reversing valve core.
Further perfecting, set up the drainage channel of intercommunication valve body exit end on valve rod and the valve disc, fixedly connected with hose between drainage channel and the second interface.
Further perfect, spring diaphragm formula pressure regulating device includes adjusting screw, spring hold-down plate, pressure regulating spring, diaphragm clamp plate and the elastic diaphragm that sets gradually from the top down, adjusting screw and valve gap threaded connection, adjusting screw's lower extreme fixed mounting has drive gear, and adjusting screw's both sides respectively are equipped with a double-screw bolt, double-screw bolt upper end and valve gap fixed connection, be equipped with the through-hole that supplies the double-screw bolt to pass on the spring hold-down plate, threaded connection has driven gear on the double-screw bolt, is equipped with the bearing packing ring between driven gear and the spring hold-down plate, and driven gear is connected with drive gear meshing.
Further perfection, an impeller is horizontally and rotatably arranged below the valve clack.
Further perfection, be connected with damping spring between valve clack and the tee bend switching-over valve.
Further perfecting, install the discharge valve on the third interface.
The invention has the beneficial effects that: the three-way reversing valve is arranged at the bottom of the valve body, a first interface and a second interface of the three-way reversing valve are respectively communicated with the inlet end and the outlet end of the valve body, the third interface is provided with a pressure sensor, any two of the first interface, the second interface and the third interface can be communicated through the reversing valve core, when the third interface is communicated with the first interface or the second interface, the pressure sensor can respectively detect the pressure at the inlet end or the outlet end, the opening degree of the valve can be improved by communicating the first interface and the second interface, the pressure at the outlet end can be regulated and controlled, the stability of the pressure at the outlet end is improved, the purposes of uniformly measuring and reducing pressure measuring pipelines at two ends are achieved, the installation cost of the valve is reduced, and the efficiency and the accuracy of water pressure measurement are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
description of reference numerals: 1. the valve comprises a valve body, 11, an inlet end, 12, an outlet end, 13, a valve seat hole, 2, a valve cover, 3, a valve rod, 31, a valve clack, 32, a drainage channel, 33, a hose, 34, an impeller, 35, a damping spring, 4, a spring diaphragm type pressure regulating device, 41, a regulating screw, 42, a spring pressing plate, 43, a pressure regulating spring, 44, a diaphragm pressing plate, 45, an elastic diaphragm, 46, a driving gear, 47, a stud, 48, a driven gear, 5, a three-way reversing valve, 51, a first interface, 52, a second interface, 53, a third interface, 54, a reversing valve core, 55, a pressure sensor, 56, a reversing channel, 57 and a discharge valve.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
referring to figure 1: the pressure reduction pilot valve convenient for pressure detection in the embodiment comprises a valve body 1, a valve cover 2 arranged on the top of the valve body 1, a valve rod 3 movably arranged in the valve body 1 in a lifting mode, and a spring diaphragm type pressure regulating device 4 arranged between the valve body 1 and the valve cover 2 in a sealing mode; the utility model discloses a valve body, including valve body 1, inlet end 11, second interface 52, third interface 52, inlet end 11, valve seat hole 13, valve clack 31 fixed connection valve rod 3 lower extreme, valve rod 3 upper end connection spring diaphragm formula pressure regulating device 4, valve body 1 bottom be equipped with three-way switching-over valve 5, be equipped with first interface 51, second interface 52, third interface 53 and switching-over case 54 on the three-way switching-over valve 5, first interface 51 and second interface 52 communicate inlet end 11 and outlet end 12 of valve body 1 respectively, install pressure sensor 55 on the third interface 53, switching-over case 54 can communicate two arbitrary in first interface 51, second interface 52 and the third interface 53 at its in-process that removes respectively. The reversing valve core 54 is of a rotary structure, a reversing channel 56 is arranged on the reversing valve core 54, the central angle of the reversing channel 56 is 120 degrees, and the inner ends of the first connector 51, the second connector 52 and the third connector 53 are uniformly and circumferentially distributed on the periphery of the reversing valve core 54. The three-way reversing valve 5 can also adopt a four-position three-way electromagnetic valve structure.
The working principle is as follows: when the pressure at the outlet end 12 is too low and the outlet pressure needs to be increased, the downward pressing elasticity of the spring diaphragm type pressure regulating device 4 is adjusted upwards, so that the valve rod 3 and the valve clack 31 are driven to move downwards together, the valve clack 33 is far away from the sealing surface of the valve seat hole 13, the opening degree of the valve is increased, and the pressure at the outlet end 12 is increased; on the contrary, when the pressure at the outlet end 12 is too large and the outlet pressure needs to be reduced, the downward-pressing elastic force of the spring diaphragm type pressure regulating device 4 is adjusted downwards, the valve rod 3 and the valve clack 31 move upwards together, then the valve clack 31 is close to the sealing surface of the valve seat hole 13, the valve opening is reduced, the pressure at the outlet end 12 is also reduced, after the specified outlet pressure is set, and when the inlet pressure of the valve is in a certain dynamic range, the outlet pressure of the valve can be kept constant output, so that the self-operated dynamic regulation is realized. The reversing valve core 54 can be externally connected with a crank or a motor for driving, the reversing valve core 54 can be communicated with any two of the first interface 51, the second interface 52 and the third interface 53 through the reversing channel 56 in the rotating process, when the third interface 53 is communicated with the first interface 51 or the second interface 52, the pressure sensor 55 can respectively detect the pressure of the inlet end 11 or the outlet end 12, the pressure sensor 55 can transmit pressure information to the outside through an external pressure display device, a data interface or a wireless communication module, the opening degree of the valve can be improved by communicating the first interface 51 and the second interface 52, the pressure of the outlet end 12 is regulated and controlled, the stability of the pressure of the outlet end is improved, the purposes of uniformly measuring and reducing and adding two-end pressure measuring pipelines are achieved, the valve installation cost is reduced, and the efficiency and the accuracy of water pressure measurement are improved.
And a drainage channel 32 communicated with the outlet end 12 of the valve body 1 is formed in the valve rod 3 and the valve disc, and a hose 33 is fixedly connected between the drainage channel 32 and the second connector 52. The second connector 52 can directly penetrate through the inner wall of the valve body to be connected with the outlet end, and can also be connected with the outlet end 12 through the drainage channel 32 and the hose 33, so that the water pressure is conducted to the second connector 52, the structure of the valve body is prevented from being damaged, and the processing and manufacturing difficulty is reduced.
Spring diaphragm formula pressure regulating device 4 includes adjusting screw 41, spring plate 42, pressure regulating spring 43, diaphragm clamp plate 44 and elastic diaphragm 45 that set gradually from the top down, adjusting screw 41 and 2 threaded connection of valve gap, adjusting screw 41's lower extreme fixed mounting has drive gear 46, and adjusting screw 41's both sides respectively are equipped with a double-screw bolt 47, double-screw bolt 47 upper end and 2 fixed connection of valve gap, be equipped with the through-hole that supplies double-screw bolt 47 to pass on the spring plate 42, threaded connection has driven gear 48 on the double-screw bolt 47, is equipped with the bearing washer between driven gear 48 and the spring plate 42, and driven gear 48 is connected with drive gear 46 meshing. When the outlet pressure is greater than the set spring force, the pressure regulating spring 43 is compressed, and further drives the elastic diaphragm 45, the valve rod 3 and the valve clack 31 to move upwards together, so that the valve clack 31 is close to the sealing surface of the valve seat hole 13, the opening degree of the valve is reduced, and the outlet end pressure is reduced; on the contrary, when the outlet pressure is reduced, the acting force applied on the elastic diaphragm 45 is reduced and is smaller than the set spring force, the pressure regulating spring 43 is released, and further the elastic diaphragm 45, the valve rod 3 and the valve clack 31 are pushed to move downwards together, so that the valve clack 31 is opened, the valve opening is increased, and the pressure of the outlet end 12 is increased. When adjusting screw 41 was unscrewed, can rotate through drive gear 46 drive driven gear 48, because double-screw bolt 47 and driven gear 48 threaded connection, driven gear 48 and drive gear 46 can move down in step, extrude spring plate 42 simultaneously, drive pressure regulating spring 43 compresses, improve the spring force of settlement, driven gear 48 can share the ascending reaction force of spring plate 42, reduce adjusting screw 41's rotation resistance, it is more laborsaving to make adjusting screw 41 rotate, the screw thread is difficult to damage more, double-screw bolt 47 cooperatees with the through-hole on the spring plate 42, can fix a position spring plate 42, improve adjusting spring 43's regulation efficiency.
An impeller 34 is installed in the below horizontal rotation of valve clack 31, and when valve clack 31 opened, impeller 34 can rivers rotate thereupon, can make the even flow direction of rivers valve seat hole, reduces the impact force of rivers to the valve clack, and through the gyroscope effect, the impeller can play the effect of balanced valve rod, valve clack, can the effectual life who improves valve rod, valve clack.
And a damping spring 35 is connected between the valve clack 31 and the three-way reversing valve 5, so that the vibration frequency of the valve clack can be reduced.
And a discharge valve 57 is arranged on the third interface 53 and can be matched with the three-way reversing valve 5 for use, so that water quality sampling or impurity discharge in the valve body is facilitated.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (7)
1. A pressure reduction pilot valve convenient for pressure detection comprises a valve body (1), a valve cover (2) arranged at the top of the valve body (1), a valve rod (3) movably arranged in the valve body (1) in a lifting way, and a spring diaphragm type pressure regulating device (4) arranged between the valve body (1) and the valve cover (2) in a sealing way; valve body (1) both ends are equipped with entrance point (11) and exit end (12) that communicate each other respectively, are equipped with valve seat hole (13) between entrance point (11) and exit end (12), are equipped with seal fit's valve clack (31) on valve seat hole (13), valve clack (31) fixed connection valve rod (3) lower extreme, valve rod (3) upper end connecting spring diaphragm formula pressure regulating device (4), its characterized in that: the pressure-sensitive valve is characterized in that a three-way reversing valve (5) is arranged at the bottom of the valve body (1), a first connector (51), a second connector (52), a third connector (53) and a reversing valve core (54) are arranged on the three-way reversing valve (5), the first connector (51) and the second connector (52) are respectively communicated with an inlet end (11) and an outlet end (12) of the valve body (1), a pressure sensor (55) is installed on the third connector (53), and the reversing valve core (54) can be communicated with any two of the first connector (51), the second connector (52) and the third connector (53) in the moving process.
2. The pressure relief pilot valve facilitating pressure sensing of claim 1, further comprising: the reversing valve core (54) is of a rotary structure, a reversing channel (56) is arranged on the reversing valve core (54), the central angle of the reversing channel (56) is 120 degrees, and the inner ends of the first connector (51), the second connector (52) and the third connector (53) are uniformly and circumferentially distributed on the periphery of the reversing valve core (54).
3. The pressure relief pilot valve facilitating pressure sensing of claim 1, further comprising: and the valve rod (3) and the valve disc are provided with a drainage channel (32) communicated with the outlet end (12) of the valve body (1), and a hose (33) is fixedly connected between the drainage channel (32) and the second connector (52).
4. The pressure relief pilot valve facilitating pressure sensing of claim 1, further comprising: spring diaphragm formula pressure regulating device (4) are including adjusting screw (41), spring pressing plate (42), pressure regulating spring (43), diaphragm clamp plate (44) and elastic diaphragm (45) that from the top down set gradually, adjusting screw (41) and valve gap (2) threaded connection, the lower extreme fixed mounting of adjusting screw (41) has drive gear (46), and the both sides of adjusting screw (41) respectively are equipped with a double-screw bolt (47), double-screw bolt (47) upper end and valve gap (2) fixed connection, be equipped with the through-hole that supplies double-screw bolt (47) to pass on spring pressing plate (42), threaded connection has driven gear (48) on double-screw bolt (47), is equipped with the bearing washer between driven gear (48) and spring pressing plate (42), and driven gear (48) are connected with drive gear (46) meshing.
5. The pressure relief pilot valve facilitating pressure sensing of claim 1, further comprising: an impeller (34) is horizontally and rotatably arranged below the valve clack (31).
6. The pressure relief pilot valve facilitating pressure sensing of claim 1, further comprising: and a damping spring (35) is connected between the valve clack (31) and the three-way reversing valve (5).
7. The pressure relief pilot valve facilitating pressure sensing of claim 1, further comprising: and a discharge valve (57) is installed on the third interface (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210664258.6A CN114838145B (en) | 2022-06-14 | 2022-06-14 | Decompression pilot valve convenient to pressure detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210664258.6A CN114838145B (en) | 2022-06-14 | 2022-06-14 | Decompression pilot valve convenient to pressure detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114838145A true CN114838145A (en) | 2022-08-02 |
| CN114838145B CN114838145B (en) | 2024-08-30 |
Family
ID=82573835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210664258.6A Active CN114838145B (en) | 2022-06-14 | 2022-06-14 | Decompression pilot valve convenient to pressure detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114838145B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116989177A (en) * | 2023-09-11 | 2023-11-03 | 河北昊方新能源科技有限公司 | An electronic switch valve |
| EP4405604A1 (en) * | 2021-09-21 | 2024-07-31 | Frese A/S | A control valve with a measuring chamber |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002108458A (en) * | 2000-09-28 | 2002-04-10 | Yoshitake Inc | Pressure reducing valve |
| JP2002122256A (en) * | 2000-10-11 | 2002-04-26 | Yoshitake Inc | Pressure reducing valve |
| JP2009026054A (en) * | 2007-07-19 | 2009-02-05 | Koganei Corp | Pressure reducing valve |
| CN101776210A (en) * | 2010-01-01 | 2010-07-14 | 王后忠 | Gas pipe leakage detection device |
| CN203614839U (en) * | 2013-12-05 | 2014-05-28 | 吴忠仪表有限责任公司 | Automatic pressure measurement three-way reversing valve |
| CN206347165U (en) * | 2016-12-26 | 2017-07-21 | 宁波埃美柯铜阀门有限公司 | A kind of pressure-reducing valve pilot valve for carrying pressure gauge connection |
| CN110081207A (en) * | 2019-05-15 | 2019-08-02 | 浙江伟宙科技有限公司 | A kind of three way type air pressure regulator |
| CN213809003U (en) * | 2020-10-14 | 2021-07-27 | 浙江合奥机械科技有限公司 | Multi-channel high-temperature all-metal sealing ball valve |
-
2022
- 2022-06-14 CN CN202210664258.6A patent/CN114838145B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002108458A (en) * | 2000-09-28 | 2002-04-10 | Yoshitake Inc | Pressure reducing valve |
| JP2002122256A (en) * | 2000-10-11 | 2002-04-26 | Yoshitake Inc | Pressure reducing valve |
| JP2009026054A (en) * | 2007-07-19 | 2009-02-05 | Koganei Corp | Pressure reducing valve |
| CN101776210A (en) * | 2010-01-01 | 2010-07-14 | 王后忠 | Gas pipe leakage detection device |
| CN203614839U (en) * | 2013-12-05 | 2014-05-28 | 吴忠仪表有限责任公司 | Automatic pressure measurement three-way reversing valve |
| CN206347165U (en) * | 2016-12-26 | 2017-07-21 | 宁波埃美柯铜阀门有限公司 | A kind of pressure-reducing valve pilot valve for carrying pressure gauge connection |
| CN110081207A (en) * | 2019-05-15 | 2019-08-02 | 浙江伟宙科技有限公司 | A kind of three way type air pressure regulator |
| CN213809003U (en) * | 2020-10-14 | 2021-07-27 | 浙江合奥机械科技有限公司 | Multi-channel high-temperature all-metal sealing ball valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4405604A1 (en) * | 2021-09-21 | 2024-07-31 | Frese A/S | A control valve with a measuring chamber |
| EP4405604B1 (en) * | 2021-09-21 | 2025-10-22 | Frese A/S | A control valve with a measuring chamber |
| CN116989177A (en) * | 2023-09-11 | 2023-11-03 | 河北昊方新能源科技有限公司 | An electronic switch valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114838145B (en) | 2024-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114838145B (en) | Decompression pilot valve convenient to pressure detection | |
| CN218935339U (en) | Diffusing all-welded ball valve | |
| CN216344164U (en) | Pilot piston type pressure reducing valve | |
| CN110686112B (en) | Pipeline gate valve convenient to dismouting | |
| CN116066577A (en) | Intelligent plate butterfly valve and its control system for automatic control and adjustment of water flow rate | |
| CN212745186U (en) | Pipeline adjusting fitting | |
| CN216643264U (en) | Valve with pressure detection function | |
| CN219189744U (en) | Valve mounting hole grinding device | |
| CN219673306U (en) | Soft seal control angle valve | |
| CN216768394U (en) | Back pressure valve | |
| CN216555380U (en) | Automatic valve structure of fire-fighting pipeline | |
| CN117588568A (en) | Self-sealing valve based on stop valve | |
| CN220523309U (en) | Pressure regulating valve with water pressure regulating effect | |
| CN221196110U (en) | Thrust bearing structure of three-eccentric butterfly valve | |
| CN220882097U (en) | Auxiliary maintenance tool for mounting valve | |
| CN207421439U (en) | A kind of rotary shaft pressure maintaining valve | |
| CN207796228U (en) | A kind of butterfly valve gear sheet | |
| CN209084015U (en) | A kind of special service valve preventing leakage | |
| CN220302773U (en) | Overload protection type electric center line butterfly valve | |
| CN220016208U (en) | Gas pressure reducing valve | |
| CN222977466U (en) | Electric valve capable of adjusting flow | |
| CN216618567U (en) | Sealing structure of corrugated pipe valve seat | |
| CN222297103U (en) | Electric automatic control mechanism for valves | |
| CN208474606U (en) | A kind of valve opening and closing device | |
| CN207830681U (en) | A kind of intelligent regulating motor-driven actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |