CN207437867U - Adjustable compression release valve - Google Patents
Adjustable compression release valve Download PDFInfo
- Publication number
- CN207437867U CN207437867U CN201721521876.6U CN201721521876U CN207437867U CN 207437867 U CN207437867 U CN 207437867U CN 201721521876 U CN201721521876 U CN 201721521876U CN 207437867 U CN207437867 U CN 207437867U
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- Prior art keywords
- valve
- main valve
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- diaphragm
- pressure
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- 230000006835 compression Effects 0.000 title claims abstract description 23
- 238000007906 compression Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 230000008859 change Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 239000010935 stainless steel Substances 0.000 description 7
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 210000004894 snout Anatomy 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model provides a kind of adjustable compression release valve, is related to valve technology field, including main valve, secondary valve and Relief pilot valve；Main valve includes main valve body, main valve lid, main valve stem, main valve disc and diaphragm unit, main valve disc and is connected with main valve stem, and main valve stem is arranged on main valve body；Diaphragm unit includes main elastic component, diaphragm pressing plate and diaphragm；Main valve disc will be divided into intake antrum and water chamber inside main valve body；Chamber in order to control between diaphragm unit and main valve disc；Secondary valve one end is connected with intake antrum, and the other end is connected with control chamber；Relief pilot valve one end is connected with control chamber, and the other end is connected with water chamber.The valve adjusts the pressure of pipeline using medium self-energy, outlet pressure not because inlet pressure, inlet flow rate variation due to change, safely and reliably outlet pressure is maintained in setting value, and setting value can be adjusted as needed to reach decompression purpose.
Description
Technical field
The utility model is related to valve technology field, more particularly, to a kind of adjustable compression release valve.
Background technology
With the progress of economic fast development and urbanization, building particularly skyscraper is more and more, and life supplies
Water requirement is higher and higher, when people are concentrated with water, the hydraulic pressure in pipeline can be caused to reduce and then influence high-floor feedwater problem.And
And at present, China's fire demand water is based on living water, and when a fire, fire demand water can also influence the hydraulic pressure in pipeline,
Cause to influence to supply water, pipeline installation pressure reducing valve is with the hydraulic pressure in control piper in the prior art, but existing pressure reducing valve is installed
Repair is inconvenient and is not very reliable.
Utility model content
The purpose of this utility model is to provide a kind of adjustable compression release valve, for domestic water, fire water-supply and other
Industrial water system, by adjusting the outlet pressure of the i.e. adjustable main valve of Relief pilot valve, outlet pressure is not because of inlet pressure, import
The variation of flow and change, safely and reliably outlet pressure is maintained in setting value, and can adjust as needed setting value with
Reach decompression purpose；Adjustable decompressing valve performance is stable, safe and reliable, installation and adjustment are convenient, and service life is long.
To achieve the above object, the utility model provides following technical scheme：
The utility model provides a kind of adjustable compression release valve, including main valve, secondary valve and Relief pilot valve；
The main valve includes main valve body, main valve lid, main valve stem, main valve disc and diaphragm unit, the main valve disc and the master
Valve rod connects, and the main valve stem is arranged on the main valve body；The diaphragm unit includes main elastic component, diaphragm pressing plate and film
Piece；The main elastic component and the diaphragm pressing plate are socketed on the main valve stem；Described main elastic component one end and the main valve
Lid offsets, and the other end offsets with the diaphragm pressing plate；The pressing diaphragm backboard is from the main elastic component one side and the diaphragm phase
It supports；The diaphragm is between the main valve lid and the main valve body and between the diaphragm pressing plate and the main valve lid；
The main valve disc will be divided into intake antrum and water chamber inside the main valve body；The diaphragm unit and the main valve disc
Between chamber in order to control；
Described pair valve one end is connected with the intake antrum, and the other end is connected with the control chamber；
Described Relief pilot valve one end is connected with the control chamber, and the other end is connected with the water chamber.
Further, the Relief pilot valve includes pilot valve elastic component；
When the pressure of the water chamber is more than the setting value of the pilot valve elastic component, the Relief pilot valve is closed；
When the pressure of the water chamber is less than the setting value of the pilot valve elastic component, the Relief pilot valve is opened.
Further, the connecting line of the intake antrum and the secondary valve is provided with filter.
Further, the secondary valve is needle-valve.
Further, it is additionally provided with ball valve between the water chamber and the Relief pilot valve.
Further, adjustable compression release valve further includes pressure gauge component, for detecting the pressure inside the main valve body.
Further, the pressure gauge component includes inlet pressure gauge and delivery gauge；The inlet pressure gauge is set
In the entrance of the main valve body；The delivery gauge is arranged on the exit of the valve body.
Further, the main valve stem is also associated with hanging ring away from described main valve disc one end, for adjusting the main elasticity
The preset pressure of part.
Adjustable compression release valve provided by the utility model has the advantages that：
The utility model provides a kind of adjustable compression release valve, including main valve, secondary valve and Relief pilot valve；Main valve includes main valve
Body, main valve lid, main valve stem, main valve disc and diaphragm unit, main valve disc are connected with main valve stem, and main valve stem is arranged on main valve body；Film
Piece component includes main elastic component, diaphragm pressing plate and diaphragm；Main elastic component and diaphragm pressing plate are socketed on main valve stem；Main elastic component
One end offsets with main valve lid, and the other end offsets with diaphragm pressing plate；Pressing diaphragm backboard offsets from main elastic component one side with diaphragm；Diaphragm
Between main valve lid and main valve body and between diaphragm pressing plate and main valve lid；Main valve disc will be divided into intake antrum inside main valve body
And water chamber；Chamber in order to control between diaphragm unit and main valve disc；Secondary valve one end is connected with intake antrum, and the other end connects with control chamber
It is logical；Relief pilot valve one end is connected with control chamber, and the other end is connected with water chamber.
Using adjustable compression release valve provided by the utility model, when main valve feeds water from snout cavity, current by secondary valve into
Enter control chamber, control chamber can be applied to by conduit on Relief pilot valve by Relief pilot valve draining to water chamber, water outlet cavity pressure.
When water outlet cavity pressure is more than the preset pressure value of Relief pilot valve, Relief pilot valve is closed, and control chamber stops draining；At this point, main valve
Cavity pressure rise is controlled, and closes main valve, water outlet cavity pressure no longer raises.When water outlet cavity pressure is less than the default of Relief pilot valve
During pressure value, Relief pilot valve is opened, and control chamber is by Relief pilot valve to water chamber draining.Since the displacement of Relief pilot valve is more than
The inflow of secondary valve, the pressure of control chamber decline, and water inlet cavity pressure opens main valve, and intake antrum is connected with water chamber.In stabilization
Under state, control chamber water inlet is identical with draining, and main valve aperture is constant, water chamber pressure stability.By adjusting main elastic component
Set water outlet cavity pressure.And control chamber pressure feedback part uses diaphragm, high sensitivity.
Adjustable decompressing valve performance provided by the utility model is stable, safe and reliable, installation and adjustment are convenient, service life
It is long.In use, stable water outlet cavity pressure can be automatically kept after water outlet cavity pressure is set up.It is relied on oneself control using Relief pilot valve,
Other devices and the energy is not required, maintenance is easy, and pressure control accuracy is high, smaller by water inlet cavity pressure and flow effect, subtracts
It presses voltage stabilizing reliable, can be widely used for the water supply pipe net systems such as skyscraper, living area and urban water supply engineering.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram for the adjustable pressure reducing valve that the utility model embodiment provides.
Icon：1- main valves；2- pair valves；3- Relief pilot valves；4- filters；5- ball valves；6- inlet pressure gauges；7- outlet pressures
Table；11- main valve bodies；12- main valve lids；13- main valve stems；14- main valve discs；The main elastic components of 15-；16- diaphragm pressing plates；17- diaphragms；
18- hanging rings；19- main valve seats.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be appreciated that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Fig. 1 is refer to, the adjustable compression release valve that the utility model embodiment provides is made specifically below in conjunction with attached drawing
It is bright.
The embodiment of the utility model provides a kind of adjustable compression release valve, including main valve 1, secondary valve 2 and Relief pilot valve 3；
Main valve 1 includes main valve body 11, main valve lid 12,17 component of main valve stem 13, main valve disc 14 and diaphragm, main valve disc 14 and master
Valve rod 13 connects, and main valve stem 13 is arranged on main valve body 11；17 component of diaphragm includes main elastic component 15, diaphragm pressing plate 16 and diaphragm
17；Main elastic component 15 and diaphragm pressing plate 16 are socketed on main valve stem 13；Main 15 one end of elastic component offsets with main valve lid 12, another
End offsets with diaphragm pressing plate 16；Diaphragm pressing plate 16 offsets away from main 15 one side of elastic component with diaphragm 17；Diaphragm 17 is located at main valve lid
Between 12 and main valve body 11 and between diaphragm pressing plate 16 and main valve lid 12；
Main valve disc 14 will be divided into intake antrum and water chamber inside main valve body 11；It is control between 17 component of diaphragm and main valve disc 14
Chamber processed；
Secondary 2 one end of valve is connected with intake antrum, and the other end is connected with control chamber；
3 one end of Relief pilot valve is connected with control chamber, and the other end is connected with water chamber.
The adjustable compression release valve provided using the embodiment of the utility model, when main valve 1 feeds water from snout cavity, water flows through
Secondary valve 2 is crossed into control chamber, control chamber can be applied to by 3 draining of Relief pilot valve to water chamber, water outlet cavity pressure by conduit
On Relief pilot valve 3.When water outlet cavity pressure is more than the preset pressure value of Relief pilot valve 3, Relief pilot valve 3 is closed, and control chamber stops
Draining；At this point, main valve 1 controls cavity pressure rise, and main valve 1 is closed, water outlet cavity pressure no longer raises.When water outlet cavity pressure is small
When the preset pressure value of Relief pilot valve 3, Relief pilot valve 3 is opened, and control chamber is by Relief pilot valve 3 to water chamber draining.Due to
The displacement of Relief pilot valve 3 is more than the inflow of secondary valve 2, and the pressure of control chamber declines, and water inlet cavity pressure opens main valve 1, into
Water cavity is connected with water chamber.At steady state, control chamber water inlet is identical with draining, and 1 aperture of main valve is constant, and water outlet cavity pressure is steady
It is fixed.Water outlet cavity pressure can be set by adjusting main elastic component 15.And control chamber pressure feedback part uses diaphragm 17, sensitivity
It is high.
The adjustable decompressing valve performance stabilization of the embodiment offer of the utility model, safe and reliable, installation and adjustment are convenient, makes
Use long lifespan.In use, stable water outlet cavity pressure can be automatically kept after water outlet cavity pressure is set up.Using Relief pilot valve 3 certainly
Power controls, and other devices and the energy is not required, and maintenance is easy, and pressure control accuracy is high, by water inlet cavity pressure and flow effect
Smaller, pressure-reduced and-regulated is reliable, can be widely used for the water supply pipe net systems such as skyscraper, living area and urban water supply engineering.
In above-mentioned alternative, further, the main valve seat 19 coordinated with main valve disc 14 is additionally provided on main valve body 11,
Main valve body 11 is provided with the sealing elements such as O-ring seal, and main valve disc 14 and 19 contact position of main valve seat with 19 junction of main valve seat
It is provided with the sealing elements such as O-ring seal.
In above-mentioned alternative, further, main valve stem 13 is also associated with hanging ring 18 away from 14 one end of institute's main valve disc, uses
In the preset pressure for adjusting main elastic component 15.
It elaborates below to the material of main parts size：
The material of valve deck includes but is not limited to：Spheroidal graphite cast-iron, cast steel, stainless steel or copper alloy；Main elastic component 15 has
Body can be main spring, and the material of main spring includes but is not limited to：Spring steel or stainless steel；The material bag of diaphragm pressing plate 16
It includes but is not limited to：Spheroidal graphite cast-iron, cast steel, stainless steel or copper alloy；The material of diaphragm 17 includes but is not limited to：The fine rubber of fourth
The vulcanization of Jiao Bao enhancing nylon, EPDM nylon reinforcing rubber；The material of main valve disc 14 includes but is not limited to：Spheroidal graphite cast-iron,
Cast steel, stainless steel or copper alloy；The material of main valve stem 13 includes but is not limited to stainless steel；The material of main valve body 11 include but
It is not limited to：Spheroidal graphite cast-iron, casting steel or stainless steel；The material of main valve seat 19 includes but is not limited to：Stainless steel or copper alloy；
In above-mentioned alternative, further, Relief pilot valve 3 includes pilot valve elastic component；
When the pressure of water chamber is more than the setting value of pilot valve elastic component, Relief pilot valve 3 is closed；
When the pressure of water chamber is less than the setting value of pilot valve elastic component, Relief pilot valve 3 is opened.
Pilot valve elastic component is specifically as follows pilot valve spring, when water outlet cavity pressure is more than the preset pressure value of pilot valve spring,
Relief pilot valve 3 is closed, and control chamber stops draining；When water outlet cavity pressure is less than the preset pressure value of pilot valve spring, Relief pilot valve 3
It opens, control chamber is by Relief pilot valve 3 to water chamber draining.
In above-mentioned alternative, further, the connecting line of intake antrum and secondary valve 2 is provided with filter 4.
In above-mentioned alternative, further, secondary valve 2 is needle-valve.
When main valve 1 feeds water from snout cavity, current enter control chamber by needle-valve, and control chamber can pass through 3 row of Relief pilot valve
Water to water chamber, water outlet cavity pressure is applied to by conduit on Relief pilot valve 3.When water outlet cavity pressure is more than the default of pilot valve spring
During pressure value, Relief pilot valve 3 is closed, and control chamber stops draining；At this point, main valve 1 controls cavity pressure rise, and main valve 1 is closed,
Water outlet cavity pressure no longer raises.When water outlet cavity pressure is less than the preset pressure value of pilot valve spring, Relief pilot valve 3 is opened, control
Chamber is by Relief pilot valve 3 to water chamber draining.Since the displacement of Relief pilot valve 3 is more than the inflow of needle-valve, the pressure of control chamber
Power declines, and water inlet cavity pressure opens main valve 1, and intake antrum is connected with water chamber.At steady state, control chamber water inlet and draining
Identical, 1 aperture of main valve is constant, water chamber pressure stability.
In above-mentioned alternative, further, ball valve 5 is additionally provided between water chamber and Relief pilot valve 3.
In above-mentioned alternative, further, adjustable compression release valve further includes pressure gauge component, for detecting main valve body
Pressure inside 11.
In above-mentioned alternative, further, pressure gauge component includes inlet pressure gauge 6 and delivery gauge 7；Import
Pressure gauge 6 is arranged on the entrance of main valve body 11；Delivery gauge 7 is arranged on the exit of valve body.
The pressure P1 of intake antrum enters the control chamber of main valve 1 by conduit and needle-valve, and establishes downward pressure F, water outlet
The pressure P2 of chamber acts under the membrane of Relief pilot valve 3 and opposite with pilot valve spring anti-also by conduit.When downstream, that is, water chamber
When pressure is more than the setting value of pilot valve spring, Relief pilot valve 3 is closed, and the water excretion in control chamber is 0, and variable pressure F reaches most
Big value, then main valve disc 14 presses 19 main valve 1 of main valve seat and closes.When downstream pressure is less than pilot valve spring setting value, pilot valve is opened,
Pressure water in control chamber will be excreted to downstream by Relief pilot valve 3 and ball valve 5.Since pin valve opening is small (1/4-1/2), and
It is small that entry conductor ratio exports to pipe diameter, so drainage rate is more than inlet pressure moisturizing speed, thus cavity pressure F is controlled to subtract
Small, the inlet pressure P1 acted on always below main valve disc 14 holds up main valve disc 14, so as to open pressure reducing valve.In stable regulation
State, excretion flow are equal to refill flow, and 1 aperture of main valve is constant, and downstream pressure is stablized.
The adjustable compression release valve of the utility model is illustrated above, still, the utility model is not limited to above-mentioned
Specific embodiment without departing from the scope of claim, can carry out various deformations or change.This practicality is new
The various modifications and change that type is included within the scope of the claims.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model rather than it is limited
System；Although utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should manage
Solution：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole skills
Art feature carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the utility model
The scope of each embodiment technical solution.
Claims (8)
1. a kind of adjustable compression release valve, which is characterized in that including main valve, secondary valve and Relief pilot valve；
The main valve includes main valve body, main valve lid, main valve stem, main valve disc and diaphragm unit, the main valve disc and the main valve stem
Connection, the main valve stem are arranged on the main valve body；The diaphragm unit includes main elastic component, diaphragm pressing plate and diaphragm；Institute
It states main elastic component and the diaphragm pressing plate is socketed on the main valve stem；Described main elastic component one end and the main valve lid phase
It supports, the other end offsets with the diaphragm pressing plate；The pressing diaphragm backboard offsets from the main elastic component one side with the diaphragm；Institute
Diaphragm is stated between the main valve lid and the main valve body and between the diaphragm pressing plate and the main valve lid；
The main valve disc will be divided into intake antrum and water chamber inside the main valve body；Between the diaphragm unit and the main valve disc
Chamber in order to control；
Described pair valve one end is connected with the intake antrum, and the other end is connected with the control chamber；
Described Relief pilot valve one end is connected with the control chamber, and the other end is connected with the water chamber.
2. adjustable compression release valve according to claim 1, which is characterized in that the Relief pilot valve includes pilot valve elastic component；
When the pressure of the water chamber is more than the setting value of the pilot valve elastic component, the Relief pilot valve is closed；
When the pressure of the water chamber is less than the setting value of the pilot valve elastic component, the Relief pilot valve is opened.
3. adjustable compression release valve according to claim 1, which is characterized in that the connecting tube of the intake antrum and the secondary valve
Road is provided with filter.
4. adjustable compression release valve according to claim 1, which is characterized in that the pair valve is needle-valve.
5. adjustable compression release valve according to claim 1, which is characterized in that between the water chamber and the Relief pilot valve
It is additionally provided with ball valve.
6. adjustable compression release valve according to claim 1, which is characterized in that pressure gauge component is further included, for detecting
State the pressure inside main valve body.
7. adjustable compression release valve according to claim 6, which is characterized in that the pressure gauge component includes inlet pressure gauge
And delivery gauge；The inlet pressure gauge is arranged on the entrance of the main valve body；The delivery gauge is arranged on described
The exit of valve body.
8. adjustable compression release valve according to claim 1, which is characterized in that the main valve stem is away from described main valve disc one end
Hanging ring is also associated with, for adjusting the preset pressure of the main elastic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521876.6U CN207437867U (en) | 2017-11-15 | 2017-11-15 | Adjustable compression release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521876.6U CN207437867U (en) | 2017-11-15 | 2017-11-15 | Adjustable compression release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437867U true CN207437867U (en) | 2018-06-01 |
Family
ID=62289515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721521876.6U Expired - Fee Related CN207437867U (en) | 2017-11-15 | 2017-11-15 | Adjustable compression release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591529A (en) * | 2018-06-28 | 2018-09-28 | 苏州艾尔泰流体控制有限公司 | Accelerate drainage arrangement and drainage system |
-
2017
- 2017-11-15 CN CN201721521876.6U patent/CN207437867U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591529A (en) * | 2018-06-28 | 2018-09-28 | 苏州艾尔泰流体控制有限公司 | Accelerate drainage arrangement and drainage system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |