CN110541956A - Water flow pressure reducing device applied to water supply system - Google Patents
Water flow pressure reducing device applied to water supply system Download PDFInfo
- Publication number
- CN110541956A CN110541956A CN201910872508.3A CN201910872508A CN110541956A CN 110541956 A CN110541956 A CN 110541956A CN 201910872508 A CN201910872508 A CN 201910872508A CN 110541956 A CN110541956 A CN 110541956A
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- Prior art keywords
- water flow
- disc
- pressure reducing
- water
- driving wheel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a water flow pressure reducing device applied to a water supply system, which comprises a valve body and a pressure reducing mechanism, wherein the valve body is provided with a valve seat; the pressure reducing mechanism includes: the water flow driving device comprises a fixed disc, a rotating disc, a water flow driving wheel, a valve structure and a reset structure; a water outlet through hole is formed in the disc body of the fixed disc; a water inlet through hole is formed in the disc body of the rotating disc; the water flow driving wheel is arranged on the rotating disc; the valve structure comprises a plurality of opening and closing valve plates; a sliding guide groove is formed in the disc body of the rotating disc, a sliding guide block is arranged on the opening and closing valve piece, and the sliding guide block is arranged in the sliding guide groove in a sliding manner; a reset guide hole is formed in the disc body of the fixed disc, a reset guide block is arranged on the opening and closing valve sheet, and the reset guide block is arranged in the reset guide hole in a sliding manner; the structure that resets includes a plurality of elastic component that reset, and the one end and the fixed disk of elastic component that reset are connected, and the other end is connected with the guide block that resets. The water flow pressure reducing device can realize the pressure reducing function of water flow on the basis of canceling the use of the traditional sealing gasket.
Description
Technical Field
The invention relates to the technical field of pressure reducing valves, in particular to a water flow pressure reducing device applied to a water supply system.
Background
the pressure reducing valve is used for reducing pressure, is an economic pressure reducing mode in a water supply system pressure adjusting measure, and can be widely applied. The pressure reducing valve reduces the inlet pressure to a certain required outlet pressure, and the outlet pressure is automatically kept stable by means of the energy of the medium. According to the working principle and the structural form, the pressure reducing valve is mainly divided into the following types: proportional pressure reducing valve, direct action type pressure stabilizing and reducing valve and pilot type pressure stabilizing and reducing valve.
the proportional pressure reducing valve has simple structure, the valve body only has one movable part, namely the piston, and pressure difference is generated by utilizing the difference of the sectional areas of two ends of the piston to realize pressure reduction. The outlet pressure and the inlet pressure of the proportional pressure reducing valve are in a fixed proportional relation, and when no flow exists, the valve body is completely closed, so that static pressure reduction is realized. The proportional pressure reducing valve reduces pressure according to a fixed proportion, and the pressure behind the valve changes in proportion along with the pressure before the valve, so that the pressure cannot be adjusted.
as shown in fig. 1, it is a structure diagram of a proportional pressure reducing valve 10 with a conventional structure, the proportional pressure reducing valve 10 includes a valve body 11 and a piston 12 movably disposed in the valve body 11, a sealing gasket 13 is attached to an end surface of the piston 12, the sealing gasket 13 is made of a soft rubber material, and the sealing gasket 13 is sealed at a water inlet 14 of the valve body 11, so as to achieve a good sealing effect.
according to the proportional pressure reducing valve 10 with the conventional structure, the sealing gasket 13 made of the soft rubber material can achieve a good sealing effect. However, the following technical problems also occur in the use process of the sealing gasket: on one hand, the sealing gasket can age in the long-term use process, the sealing performance of the aged sealing gasket can be greatly reduced, and the water leakage phenomenon can occur in serious cases; on the other hand, the sealing gasket is soaked in a long-term water environment, the surface of the colloid of the sealing gasket is bonded with the contact part of the valve body, and the bonded sealing gasket is difficult to separate from the contact part of the valve body, so that the normal water supply is influenced.
Therefore, how to design and develop a water flow pressure reducing device applied to a water supply system can also realize the pressure reducing function of water flow on the basis of canceling the use of a traditional sealing gasket, which is a technical problem to be solved by design and development personnel.
Disclosure of Invention
the invention aims to overcome the defects in the prior art, and provides a water flow pressure reducing device applied to a water supply system, which can realize the pressure reducing function of water flow on the basis of canceling the use of a traditional sealing gasket.
The purpose of the invention is realized by the following technical scheme:
A water flow pressure reduction device for use in a water supply system, comprising: the pressure reducing mechanism is accommodated in the water flow channel of the valve body;
the pressure reducing mechanism includes: the water flow driving device comprises a fixed disc, a rotating disc, a water flow driving wheel, a valve structure and a reset structure;
The fixed disc is of an annular disc body structure, a water outlet through hole is formed in the disc body of the fixed disc, the fixed disc is fixedly arranged in the valve body, and the edge of the fixed disc and the inner side wall of the valve body form a seal;
The rotating disc is of an annular disc body structure, a water inlet through hole is formed in the disc body of the rotating disc, and the rotating disc is rotatably arranged in the valve body;
the central shaft of the fixed disc and the central shaft of the rotating disc are on the same straight line;
the water flow driving wheel is arranged on the rotating disc and comprises a driving wheel body and a fan blade assembly, the fan blade assembly is fixed on the driving wheel body, and water flow through holes are formed in the driving wheel body;
The valve structure is positioned between the fixed disc and the rotating disc and comprises a plurality of opening and closing valve plates which are distributed in an annular array by taking the central shaft of the rotating disc as the center;
a plurality of sliding guide grooves are formed in the disc body of the rotating disc, the plurality of sliding guide grooves are distributed in an annular array by taking the central shaft of the rotating disc as the center, each sliding guide groove corresponds to each opening and closing valve plate one by one, sliding guide blocks are arranged on the opening and closing valve plates, and the sliding guide blocks are arranged in the sliding guide grooves in a sliding manner;
A plurality of reset guide holes are formed in a disc body of the fixed disc, the reset guide holes are distributed in an annular array by taking a central shaft of the fixed disc as a center, each reset guide hole corresponds to each opening and closing valve plate one by one, and each opening and closing valve plate is provided with a reset guide block which is arranged in the reset guide hole in a sliding manner;
The structure that resets includes a plurality of elastic component that resets, and is a plurality of the elastic component that resets uses the center pin of fixed disk is annular array distribution as the center, each the elastic component that resets with each switching valve block one-to-one, the one end of the elastic component that resets with the disk body of fixed disk is connected, the other end of the elastic component that resets with the guide block that resets is connected.
In one embodiment, the fixed disc is of a circular ring structure, and the rotating disc is of a circular ring structure.
In one embodiment, the water outlet through hole is a circular hole structure, and the water inlet through hole is a circular hole structure.
In one embodiment, the fan blade assembly includes a plurality of fan blades, and the plurality of fan blades are distributed in an annular array around a central axis of the driving wheel body.
In one embodiment, the driving wheel body is provided with a plurality of water flow through holes, and the water flow through holes are distributed in an annular array by taking the central shaft of the driving wheel body as the center.
In one embodiment, the opening and closing valve plate is of a triangular plate-shaped structure.
In one embodiment, the sliding guide groove is of a linear groove structure, and an extension line of the sliding guide groove is tangent to the edge of the water inlet through hole.
In one embodiment, the reset guide hole is an arc-shaped hole structure.
in one embodiment, the reset guide block is a cylindrical structure.
In one embodiment, the return elastic member is a spring structure.
The water flow pressure reducing device applied to the water supply system can realize the pressure reducing function of water flow on the basis of canceling the use of the traditional sealing gasket by arranging the valve body and the pressure reducing mechanism, particularly optimally designing the structure of the pressure reducing mechanism.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block diagram of a proportional type pressure reducing valve of a conventional structure;
FIG. 2 is a structural view of a water flow pressure reducing device applied to a water supply system according to an embodiment of the present invention;
FIG. 3 is a structural view of the pressure reducing mechanism shown in FIG. 2;
FIG. 4 is a structural view of the valve structure of the pressure reducing mechanism shown in FIG. 3 in a closed state;
FIG. 5 is a structural view of the valve structure of the pressure reducing mechanism shown in FIG. 3 in an open state;
FIG. 6 is an exploded view of the pressure relief mechanism shown in FIG. 3;
FIG. 7 is a structural view of a water flow driving wheel of the pressure reducing mechanism shown in FIG. 6;
fig. 8 is a structural view of an opening/closing valve sheet of the valve structure of the pressure reducing mechanism shown in fig. 6.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
it will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 2, a water flow pressure reducing device 20 applied to a water supply system includes: the valve body 30 and the pressure reducing mechanism 40, the valve body 30 has a water flow passage 31, and the pressure reducing mechanism 40 is accommodated in the water flow passage 31 of the valve body 30.
Next, a specific structure of the decompression mechanism 40 and a connection relationship between the respective members will be described:
As shown in fig. 3, the pressure reducing mechanism 40 includes: a fixed disc 100, a rotating disc 200, a water flow driving wheel 300, a valve structure 400 and a reset structure 500 (shown in fig. 4 and 5).
As shown in fig. 6, the fixed disk 100 is an annular disk body structure, a water outlet hole 110 is formed in the disk body of the fixed disk 100, the fixed disk 100 is fixedly disposed in the valve body 30, and the edge of the fixed disk 100 forms a seal with the inner side wall of the valve body 30.
As shown in fig. 6, the rotating disc 200 is an annular disc body structure, a water inlet through hole 210 is formed on the disc body of the rotating disc 200, and the rotating disc 200 is rotatably disposed in the valve body 30.
the central axis of the fixed disk 100 is aligned with the central axis of the rotary disk 200. In the present embodiment, the fixed disk 100 has a circular ring structure, and the rotating disk 200 has a circular ring structure; the water outlet hole 110 has a circular hole structure, and the water inlet hole 210 has a circular hole structure.
the water flow driving wheel 300 is mounted on the rotary plate 200, as shown in fig. 7, the water flow driving wheel 300 includes a driving wheel body 310 and a fan blade assembly 320, the fan blade assembly 320 is fixed on the driving wheel body 310, and the driving wheel body 310 is provided with a water flow passing hole 330. Specifically, the fan blade assembly 320 includes a plurality of fan blades 321, and the plurality of fan blades 321 are distributed in an annular array around the central axis of the driving wheel body 310; the driving wheel body 310 is provided with a plurality of water flow passing holes 330, and the plurality of water flow passing holes 330 are distributed in a circular array around the central axis of the driving wheel body 310.
as shown in fig. 6, the valve structure 400 is located between the fixed disk 100 and the rotating disk 200, and the valve structure 400 includes a plurality of opening/closing valve plates 410, and the plurality of opening/closing valve plates 410 are distributed in an annular array around the central axis of the rotating disk 200. In this embodiment, the opening/closing valve plate 410 has a triangular plate structure.
a plurality of sliding guide grooves 220 (as shown in fig. 6) are formed in the body of the rotating disc 200, the plurality of sliding guide grooves 220 are distributed in an annular array around the central axis of the rotating disc 200, each sliding guide groove 220 corresponds to each opening/closing valve plate 410 one by one, a sliding guide block 411 (as shown in fig. 8) is arranged on each opening/closing valve plate 410, and the sliding guide block 411 is slidably disposed in the sliding guide groove 220. In the present embodiment, the sliding guide groove 220 has a linear groove structure, and an extension line of the sliding guide groove 220 is tangent to an edge of the water inlet through hole 210.
The fixed disk 100 has a plurality of reset guide holes 120 (as shown in fig. 6) formed in the disk body, the reset guide holes 120 are distributed in an annular array around the central axis of the fixed disk 100, each reset guide hole 120 corresponds to each opening/closing valve plate 410, the opening/closing valve plates 410 have reset guide blocks 412 (as shown in fig. 6), and the reset guide blocks 412 are slidably disposed in the reset guide holes 120. In the present embodiment, the reset guide hole 120 has an arc-shaped hole structure, and the reset guide block 412 has a cylindrical structure.
The reset structure 500 includes a plurality of reset elastic members 510 (as shown in fig. 5), the plurality of reset elastic members 510 are distributed in an annular array with the central axis of the fixed disk 100 as the center, each reset elastic member 510 corresponds to each opening/closing valve plate 410 one by one, one end of the reset elastic member 510 is connected to the disk body of the fixed disk 100, and the other end of the reset elastic member 510 is connected to the reset guide block 412. In this embodiment, the return elastic member 510 is a spring structure.
The operation principle of the water flow pressure reducing device 20 applied to the water supply system will be described below:
first, it is noted that, in an initial state, that is, in a case where water flow does not impact the water flow driving wheel 300, the valve structure 400 blocks the water inlet through hole 210 of the rotary disk 200 and the water outlet through hole 110 of the fixed disk 100, so that water flow cannot pass through the water flow passage 31 freely passing through the valve body 30;
When water flows into the water flow channel 31 of the valve body 30, the water flow in the water flow channel 31 can impact the water flow driving wheel 300;
After the fan blade assembly 320 is impacted by the water flow, the fan blade assembly 320 drives the rotating disc 200 to rotate through the driving wheel body 310;
in the process of rotating the rotating disc 200, the sliding guide block 411 of each opening/closing valve plate 410 in the valve structure 400 slides along the corresponding sliding guide slot 220 on the rotating disc 200, and at the same time, the reset guide block 412 of each opening/closing valve plate 410 in the valve structure 400 slides along the corresponding reset guide slot 120 on the fixed disc 100, so that the valve structure 400 formed by the plurality of opening/closing valve plates 410 forms an opening 600 (as shown in fig. 5) from the central axis position, the opening 600 is continuously enlarged along with the increase of the water flow speed, and thus, the originally blocked water inlet through hole 210 and water outlet through hole 110 are communicated, so that the water flow can smoothly pass through the water flow channel 31;
when the water flow in the water flow channel 31 has no speed and thus cannot impact the water flow driving wheel 300, each reset elastic member 510 of the reset structure 500 pulls the reset guide block 412 on each opening and closing valve plate 410, so that the reset guide block 412 can reset under the guidance of the reset guide hole 120, and in the process of resetting the reset guide block 412, the opening 600 formed by the valve structure 400 formed by the plurality of opening and closing valve plates 410 is reduced from large to small until disappears, and the water inlet through hole 210 and the water outlet through hole 110 are blocked again, so that the water flow cannot pass through the water flow channel 31 of the valve body 30 freely;
In the process of resetting the plurality of opening and closing valve plates 410, the sliding guide block 411 of each opening and closing valve plate 410 slides along the corresponding sliding guide slot 220 on the rotating disc 200, so as to drive the rotating disc 200 to rotate and reset, and accordingly, the water flow driving wheel 300 installed on the rotating disc 200 also resets correspondingly;
It can be seen that, depending on the water flow speed, the water flow in the water flow channel 31 will form different impact forces on the water flow driving wheel 300; when the impact force is larger, the water flow driving wheel 300 drives the rotating disc 200 to rotate by a larger angle, and accordingly, the opening area of the opening 600 formed by the valve structure 400 is larger; when the impact force is small, the water flow driving wheel 300 drives the rotating disc 200 to rotate by a small angle, and accordingly, the opening area of the opening 600 formed by the valve structure 400 is small; thus, the flowing water speed is high, the opening area of the opening 600 is large, and the water flow throughput is correspondingly increased; the water flow speed is small, the opening area of the opening 600 is small, and the water flow throughput is correspondingly reduced; thereby achieving the effect of proportionally reducing the pressure of the water flow.
It should be further noted that the water flow driving wheel 300 includes a driving wheel body 310 and a fan blade assembly 320, and the driving wheel body 310 is provided with water flow passing holes 330, such a structural design can make the central axis of the water flow driving wheel 300 and the central axis of the rotating disc 200 be on the same straight line, when water flow impacts the fan blade assembly 320, the fan blade assembly 320 can stably drive the rotating disc 200 to rotate through the driving wheel body 310 without generating a deflection phenomenon, and water flow can smoothly pass through the water flow passing holes 330 on the driving wheel body 310.
Further, as shown in fig. 2, an outer side wall of the valve body 30 is provided with an external thread 32. Through the design of the external thread 32, the valve body 30 can be quickly screwed on the external pipelines to connect the two external pipelines, so that the proportional pressure reduction of water flow is realized.
The water flow pressure reducing device 20 applied to the water supply system can realize the pressure reducing function of water flow on the basis of canceling the use of the traditional sealing gasket by arranging the valve body 30 and the pressure reducing mechanism 40 and particularly optimizing the structure of the pressure reducing mechanism 40.
the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. a water flow pressure reduction device for use in a water supply system, comprising: the pressure reducing mechanism is accommodated in the water flow channel of the valve body;
The pressure reducing mechanism includes: the water flow driving device comprises a fixed disc, a rotating disc, a water flow driving wheel, a valve structure and a reset structure;
The fixed disc is of an annular disc body structure, a water outlet through hole is formed in the disc body of the fixed disc, the fixed disc is fixedly arranged in the valve body, and the edge of the fixed disc and the inner side wall of the valve body form a seal;
the rotating disc is of an annular disc body structure, a water inlet through hole is formed in the disc body of the rotating disc, and the rotating disc is rotatably arranged in the valve body;
The central shaft of the fixed disc and the central shaft of the rotating disc are on the same straight line;
the driving wheel is mounted on the rotating disc, the water flow driving wheel comprises a driving wheel body and a fan blade assembly, the fan blade assembly is fixed on the driving wheel body, and water flow through holes are formed in the driving wheel body;
The valve structure is positioned between the fixed disc and the rotating disc and comprises a plurality of opening and closing valve plates which are distributed in an annular array by taking the central shaft of the rotating disc as the center;
A plurality of sliding guide grooves are formed in the disc body of the rotating disc, the plurality of sliding guide grooves are distributed in an annular array by taking the central shaft of the rotating disc as the center, each sliding guide groove corresponds to each opening and closing valve plate one by one, sliding guide blocks are arranged on the opening and closing valve plates, and the sliding guide blocks are arranged in the sliding guide grooves in a sliding manner;
a plurality of reset guide holes are formed in a disc body of the fixed disc, the plurality of guide holes are distributed in an annular array by taking a central shaft of the fixed disc as a center, each reset guide hole corresponds to each opening and closing valve plate one by one, and each opening and closing valve plate is provided with a reset guide block which is arranged in the reset guide hole in a sliding manner;
The structure that resets includes a plurality of elastic component that resets, and is a plurality of the elastic component uses the center pin of fixed disk is annular array distribution as the center, each the elastic component that resets and each switching valve block one-to-one, the one end of the elastic component that resets with the disk body of fixed disk is connected, the other end of the elastic component that resets with the guide block that resets is connected.
2. the water flow pressure reducing device applied to the water supply system according to claim 1, wherein the fixed disc is of a circular ring structure, and the rotating disc is of a circular ring structure.
3. the water flow pressure reducing device applied to the water supply system according to claim 2, wherein the water outlet through hole is a circular hole structure, and the water inlet through hole is a circular hole structure.
4. The water flow pressure reduction device applied to the water supply system according to claim 1, wherein the fan assembly comprises a plurality of fan blades, and the plurality of fan blades are distributed in an annular array around a central axis of the driving wheel body.
5. the water flow pressure reducing device applied to the water supply system according to claim 4, wherein the driving wheel body is provided with a plurality of water flow passing holes, and the plurality of water flow passing holes are distributed in an annular array around a central axis of the driving wheel body.
6. The water flow pressure reducing device applied to the water supply system according to claim 1, wherein the opening and closing valve plate is of a triangular plate structure.
7. The water flow pressure reducing device applied to the water supply system according to claim 6, wherein the sliding guide groove is of a linear groove body structure, and an extension line of the sliding guide groove is tangent to the edge of the water inlet through hole.
8. The water flow pressure reducing device applied to the water supply system according to claim 1, wherein the reset guide hole is an arc-shaped hole structure.
9. the water flow pressure reducing device applied to the water supply system according to claim 8, wherein the reset guide block is of a cylindrical structure.
10. the water flow pressure reducing device applied to the water supply system according to claim 1, wherein the return elastic member is of a spring structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910872508.3A CN110541956A (en) | 2019-09-16 | 2019-09-16 | Water flow pressure reducing device applied to water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910872508.3A CN110541956A (en) | 2019-09-16 | 2019-09-16 | Water flow pressure reducing device applied to water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541956A true CN110541956A (en) | 2019-12-06 |
Family
ID=68713688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910872508.3A Withdrawn CN110541956A (en) | 2019-09-16 | 2019-09-16 | Water flow pressure reducing device applied to water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541956A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117006256A (en) * | 2023-09-21 | 2023-11-07 | 西安蓝鲸流体控制科技有限公司 | Novel pressure reducing valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3871065B1 (en) * | 2005-11-24 | 2007-01-24 | Ｎｏｋ株式会社 | Pressure reducing valve |
| CN201606554U (en) * | 2009-12-03 | 2010-10-13 | 傅叶明 | Integrated check pressure-reducing valve |
| CN203500528U (en) * | 2013-10-21 | 2014-03-26 | 南京凯盛国际工程有限公司 | Automatic air flow adjusting valve |
| CN206845974U (en) * | 2017-06-29 | 2018-01-05 | 苏州知瑞光电材料科技有限公司 | A kind of chemical industry pipe valve of adjustable hydraulic pressure |
| CN110529641A (en) * | 2019-08-30 | 2019-12-03 | 赵国栋 | Adjustable-flow pressure reducing valve |
-
2019
- 2019-09-16 CN CN201910872508.3A patent/CN110541956A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3871065B1 (en) * | 2005-11-24 | 2007-01-24 | Ｎｏｋ株式会社 | Pressure reducing valve |
| CN201606554U (en) * | 2009-12-03 | 2010-10-13 | 傅叶明 | Integrated check pressure-reducing valve |
| CN203500528U (en) * | 2013-10-21 | 2014-03-26 | 南京凯盛国际工程有限公司 | Automatic air flow adjusting valve |
| CN206845974U (en) * | 2017-06-29 | 2018-01-05 | 苏州知瑞光电材料科技有限公司 | A kind of chemical industry pipe valve of adjustable hydraulic pressure |
| CN110529641A (en) * | 2019-08-30 | 2019-12-03 | 赵国栋 | Adjustable-flow pressure reducing valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117006256A (en) * | 2023-09-21 | 2023-11-07 | 西安蓝鲸流体控制科技有限公司 | Novel pressure reducing valve |
| CN117006256B (en) * | 2023-09-21 | 2023-12-15 | 西安蓝鲸流体控制科技有限公司 | Pressure reducing valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191206 |