CN109114425A - A kind of pressure regulator control device - Google Patents
A kind of pressure regulator control device Download PDFInfo
- Publication number
- CN109114425A CN109114425A CN201810966495.1A CN201810966495A CN109114425A CN 109114425 A CN109114425 A CN 109114425A CN 201810966495 A CN201810966495 A CN 201810966495A CN 109114425 A CN109114425 A CN 109114425A
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- Prior art keywords
- screw
- coupling member
- ball
- pressure regulator
- valve stem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000008878 coupling Effects 0.000 claims abstract description 38
- 238000010168 coupling process Methods 0.000 claims abstract description 38
- 238000005859 coupling reaction Methods 0.000 claims abstract description 38
- 230000001360 synchronised effect Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 3
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of pressure regulator control devices, including mounting base, support frame, servo motor and ball-screw, mounting base is tubular structure and lower end is respectively equipped with flange on it, bracket is fixed on the upper end of mounting base, servo motor is fixed on bracket and makes its output shaft in vertically arranged, the output shaft of servo motor is connected with the first coaxial synchronous pulley, ball-screw is mounted vertically on bracket by bearing, ball-screw is connected with the second coaxial synchronous pulley, driving belt is equipped between second synchronous pulley and the first synchronous pulley, the screw of ball-screw is connected with valve stem coupling member, vertical guiding mechanism is equipped between valve stem coupling member and mounting base.It has the advantages that stable structure, control are easy, safe and reliable, sensitive, with high accuracy, and pressure regulator can be made to realize intelligent control through the invention.
Description
Technical field
The present invention relates to a kind of regulators, and in particular to a kind of control device for gas pressure regulator, governor.
Background technique
Pressure regulator is the important equipment in gas ductwork, plays a part of adjusting pressure and steady pressure.Traditional pressure regulation
Device is mainly made of components such as epithelium, spring, pilot valves, is a kind of mechanical semi-automatic pressure adjustment device, in reality
Phenomena such as de- pressure, failure, leakage are easy to appear in, performance is unstable, and safety is poor.Exist to solve traditional pressure regulator
The problem of, those skilled in the art have developed equipped with control device without membrane type pressure regulator, compared to traditional leather diaphragm type pressure regulation
Device, the working performance of such pressure regulator have obtained certain promotion, but it is still remained in practical applications that structure is complicated, control
The problem that difficulty is big, regulation precision is poor, safety is poor is unfavorable for fining and intelligent management.
Summary of the invention
The object of the present invention is to provide a kind of pressure regulator control device, be easy with stable structure, control, safety can
It leans on, is sensitive, advantage with high accuracy, pressure regulator can be made to realize intelligent control through the invention.
To solve the above-mentioned problems in the prior art, a kind of pressure regulator control device provided by the invention, including peace
Seat, support frame, servo motor and ball-screw are filled, the mounting base is tubular structure and lower end is respectively equipped with flange on it,
The bracket is fixed on the upper end of mounting base, and the servo motor is fixed on bracket and watches its output shaft in vertically arranged
The output shaft for taking motor is connected with the first coaxial synchronous pulley, and the ball-screw is mounted vertically on bracket by bearing,
Ball-screw is connected with the second coaxial synchronous pulley, and driving belt is equipped between the second synchronous pulley and the first synchronous pulley,
The screw of ball-screw is connected with valve stem coupling member, and vertical guiding mechanism is equipped between valve stem coupling member and mounting base.
Further, a kind of pressure regulator control device of the present invention, wherein the valve stem coupling member offers vertical valve rod
Mounting hole, the upper end of valve stem coupling member are fixed with closed type electromagnet, and the scalable armature of electromagnet is vertical with valve rod mounting hole；
When electromagnet powers off, the front end of armature is in valve rod mounting hole, and when electromagnet is powered, the front end of armature is in valve rod mounting hole
Outside.
Further, a kind of pressure regulator control device of the present invention, wherein the guiding mechanism includes being fixed on by substrate
Guide rail on mounting base inner sidewall, and the sliding block being fixed in valve stem coupling member, sliding block are vertically slidably matched with guide rail.
Further, a kind of pressure regulator control device of the present invention, wherein support frame as described above includes top plate and bottom plate and multiple
Circumferentially arranged with multiple corresponding fixation holes, support rod includes hexagonal prisms and is arranged in hexagonal prisms two for support rod, top plate and bottom plate
The threaded post at end, the corresponding fixation hole on bottom plate of the threaded posts of multiple support rod lower ends and spinning in the upper end of mounting base,
The corresponding fixation hole on top plate of the threaded post of multiple post uppers is simultaneously fixed by nut.
Further, a kind of pressure regulator control device of the present invention, wherein the servo motor is fixed on the downside of top plate
Face, for the output shaft of servo motor upward and across top plate, first synchronous pulley is coaxially fixed on the output shaft of servo motor
Upper end；The upper and lower side of the ball-screw is connect by the way that bearing is corresponding with top plate and bottom plate respectively, and the upper end of ball-screw passes through
Top plate, second synchronous pulley are coaxially fixed on the upper end of ball-screw.
Further, a kind of pressure regulator control device of the present invention, wherein the screw of the ball-screw is on its periphery wall
Equipped with land, for land circumferentially arranged with multiple up big and down small stepped holes, the valve stem coupling member is inverted L shape structure, and valve rod connects
The transverse part of fitting covers on screw by the through-hole being arranged and makes it through multiple screws to be fixedly connected with land.
Further, a kind of pressure regulator control device of the present invention, wherein the valve rod mounting hole is arranged in valve stem coupling member
Vertical part, the upper end of valve stem coupling member is equipped with limiting slot or limit hole, and the electromagnet armature is in the limit of valve stem coupling member
In position slot or limit hole.
Further, a kind of pressure regulator control device of the present invention, wherein the electromagnet is equipped with for examining side armature position
Position switch.
A kind of pressure regulator control device of the present invention compared with prior art, has the advantage that the present invention passes through setting peace
Seat, support frame, servo motor and ball-screw are filled, allows mounting base to use tubular structure and flange is respectively set in lower end on it,
Servo motor is fixed on bracket and makes its output shaft in vertically arranged, in servo by the upper end for securing the stand to mounting base
The first coaxial synchronous pulley is installed on the output shaft of motor, ball-screw is mounted vertically on bracket by bearing, is being rolled
The second coaxial synchronous pulley is installed on ballscrew, driving belt is installed between the second synchronous pulley and the first synchronous pulley,
Valve stem coupling member is installed on the screw of ball-screw, and vertical Guiding machine is set between valve stem coupling member and mounting base
Structure.Thus a kind of stable structure is just constituted, easy, safe and reliable, sensitive, the with high accuracy pressure regulator control of control fills
It sets.In practical applications, the present invention is fixed on the connectivity port of voltage regulator body by the flange of mounting base lower end, allows tune
The valve rod of depressor main body is fixedly connected with valve stem coupling member of the invention, and connects servo motor and control system of the invention
It connects, control system is allowed to control servo motor operating according to the pressure intelligent of gas pipeline upstream and downstream, servo motor will be by the
One synchronous pulley, driving belt and the driving ball-screw rotation of the second synchronous pulley, and then drive screw, the valve rod of ball-screw
Connector and valve rod move along the vertical direction, and the valve port opening of i.e. controllable voltage regulator body is moved up and down by valve rod, thus
Realize intelligent pressure regulating purpose.The present invention is by being arranged by servo motor, the first synchronous pulley, driving belt, the second synchronous pulley
The transmission system constituted with ball-screw, can effectively improve control precision；And by being set between valve stem coupling member and mounting base
Vertical guiding mechanism is set, can guarantee that valve rod not by radial forces, on the one hand avoids catching phenomenon, mentions in transmission process
The high sensitivity of pressure regulation movement, on the other hand can reduce the frictional force of valve rod, enhance stability, extend service life.
Shown specific embodiment makees further specifically a kind of pressure regulator control device of the present invention with reference to the accompanying drawing
It is bright:
Detailed description of the invention
Fig. 1 is a kind of front view of pressure regulator control device of the present invention；
Fig. 2 is a kind of left view of pressure regulator control device of the present invention；
Fig. 3 is a kind of top view of pressure regulator control device of the present invention；
Fig. 4 is a kind of bottom view of pressure regulator control device of the present invention；
Fig. 5 is the A-A direction view in Fig. 1；
Fig. 6 is the B-B direction view in Fig. 2；
Fig. 7 is a kind of perspective view one of pressure regulator control device of the present invention；
Fig. 8 is a kind of perspective view two of pressure regulator control device of the present invention；
Fig. 9 is the schematic diagram of guiding mechanism in a kind of pressure regulator control device of the present invention.
Specific embodiment
Firstly the need of explanation, the nouns of locality such as heretofore described upper and lower, front, rear, left and right only with reference to the accompanying drawings into
Capable description, in order to understand, not to technical solution of the present invention and be claimed range progress limitation.
A kind of specific embodiment of pressure regulator control device of the present invention as shown in Figures 1 to 9, including mounting base 1, support
Frame 2, servo motor 3 and ball-screw 4.It allows mounting base 1 to use tubular structure and flange is respectively set in lower end on it；By bracket
2 are fixed on the upper end of mounting base 1.Servo motor 3 is fixed on bracket 2 and makes its output shaft in vertically arranged, in servo electricity
The first coaxial synchronous pulley 31 is installed on the output shaft of machine 3, ball-screw 4 is mounted vertically on bracket 2 by bearing,
The second coaxial synchronous pulley 41 is installed on ball-screw 4, and is pacified between the second synchronous pulley 41 and the first synchronous pulley 31
Fill driving belt 5.Valve stem coupling member 6 is set on the screw 42 of ball-screw 4, and between valve stem coupling member 6 and mounting base 1
Vertical guiding mechanism 7 is set.
It is arranged through the above structure and just constitutes a kind of stable structure, controls easy, safe and reliable, sensitive, precision
High pressure regulator control device.In practical applications, the present invention is fixed on voltage regulator body by the flange of 1 lower end of mounting base
Connectivity port on, allow the valve rod of voltage regulator body to be fixedly connected with valve stem coupling member 6 of the invention, and make servo of the invention
Motor 3 is connect with control system, is allowed control system to control servo motor 3 according to the pressure intelligent of gas pipeline upstream and downstream and is operated,
Servo motor 3 will drive ball-screw 4 to rotate by the first synchronous pulley 31, driving belt 5 and the second synchronous pulley 41, into
And screw 42, valve stem coupling member 6 and the valve rod of ball-screw 4 is driven to move along the vertical direction, it is moved up and down by valve rod
The valve port opening for controlling voltage regulator body, to realize intelligent pressure regulating purpose.The present invention is by being arranged by servo motor 3, first
The transmission system that synchronous pulley 32, driving belt 5, the second synchronous pulley 42 and ball-screw 4 are constituted can effectively improve control essence
Degree；And by the way that vertical guiding mechanism 7 is arranged between valve stem coupling member 6 and mounting base 1, valve rod can guarantee in transmission process
Not by radial forces, catching phenomenon is on the one hand avoided, the sensitivity of pressure regulation movement is improved, on the other hand can reduce valve rod
Frictional force, enhance stability, extend service life.
As prioritization scheme, present embodiment allows valve stem coupling member 6 provided with vertical valve rod mounting hole 61, and
Closed type electromagnet 8 has been fixedly installed in the upper end of valve stem coupling member 6, and installs the scalable armature 81 of electromagnet 8 and valve rod
Hole 61 is vertical.It when electromagnet 8 powers off, allows the front end of armature 81 to stretch out and is in valve rod mounting hole 61, be powered in electromagnet 8
When, it allows the front end of armature 81 to withdraw and is in outside valve rod mounting hole 61.This structure setting in practical applications, allows valve rod to be placed in
It in valve rod mounting hole 61, and protrudes into 81 front end of armature of electromagnet 8 in the card slot of valve rod upper end, it is solid that quickly connection can be realized
Fixed purpose has the advantages that structure is simple, dismounting is convenient；And when pipeline air pressure occurs abnormal, by control system to electricity
Magnet 8 is powered, and armature 81 just will withdraw and be detached from valve rod, and valve rod can move down rapidly under the pressure spring effect inside voltage regulator body
And piston is made to close valve port, to realize the purpose of quick cutting-off pressure-regulating device main body, and people is needed after valve port emergency cut-off
Work reset can just rework, and it is out of control to effectively prevent pressure regulator, enhance safety.
As specific embodiment, the present invention allows guiding mechanism 7 to use following structure type: in the inside of mounting base 1
Substrate 71 is fixedly installed on wall, guide rail 72 is fixedly installed on substrate 71, sliding block 73 is fixedly installed in valve stem coupling member 6, and
Sliding block 73 is set vertically to be slidably matched with guide rail 72.This guiding mechanism 7 is simple with structure, realizes that easy, guide effect is good
The characteristics of.It should be noted that guiding mechanism 7 is not limited to form listed above, the structure of other identical functions can also be used
Form.Meanwhile present embodiment allows support frame 2 to be provided with top plate 21, bottom plate 22 and multiple support rods 23, wherein top plate
21 and the circumferentially arranged multiple corresponding fixation holes of bottom plate 22, support rod 23 use hexagonal prisms structure and the two of hexagonal prisms
End is respectively provided with threaded post.When assembly, the threaded post of multiple 23 lower ends of support rod is allowed to correspond to the fixation hole on bottom plate 22
And spinning allows the threaded post of multiple 23 upper ends of support rod to correspond to the fixation hole on top plate 21 and leads in the upper end of mounting base 1
It crosses nut to fix, the purpose being quickly connected and fixed can be realized, have the advantages that structure is simple, dismounting is convenient.It needs to illustrate
Being that support frame 2 is unlimited uses form listed above, other structures shape can also be used, as long as it is related to installation to be able to achieve support
Component.
As specific embodiment, servo motor 3 is fixed on the downside of top plate 21 by the present invention, and allows servo motor 3
Output shaft upward and pass through top plate 21, allow the first synchronous pulley 31 to be coaxially fixed on the output shaft upper end of servo motor 3；Together
When, allow the upper and lower side of ball-screw 4 to connect respectively by the way that bearing is corresponding with top plate 21 and bottom plate 22, and make the upper of ball-screw 4
End allows the second synchronous pulley 41 to be coaxially fixed on the upper end of ball-screw 4 across top plate 21.This structure setting can reduce volume
Occupied space, improve the convenience and adaptive capacity to environment of installation.As specific embodiment, the present invention allows ball-screw
4 screw 42 is provided with land, multiple up big and down small stepped holes that made land circumferentially arranged on its periphery wall, and makes valve
Joint element for bar 6 uses inverted L shape structure, and the transverse part of valve stem coupling member 6 is allowed to cover on screw 42 by the through-hole being arranged, and by more
A screw is fixedly connected with the transverse part of valve stem coupling member 6 and the land of screw 42.This structure mentions on the basis of guaranteeing stability
The high convenience of dismounting.
As prioritization scheme, present embodiment by allowing valve rod mounting hole 61 that the vertical part of valve stem coupling member 6 is arranged in,
And limiting slot or limit hole are set in the upper end of valve stem coupling member 6, allow the armature 81 of electromagnet 8 to be in the limit of valve stem coupling member 6
In position slot or limit hole, the stability of structure is effectively enhanced.Meanwhile present embodiment allows electromagnet 8 to be provided with position
Switch 82, and position switch 82 is allowed to connect with control system in practical applications, 81 position of armature is detected by position switch 82
State and the armature 81 of control system accurate judgement electromagnet 8 can be made whether flexible in place, improve the reliability of control.
Above embodiments are only the descriptions carried out to the preferred embodiment of the present invention, and model not is claimed to the present invention
It encloses and is defined, without departing from the spirit of the design of the present invention, the technology of this field engineers and technicians according to the present invention
The various forms of deformations that scheme is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (8)
1. a kind of pressure regulator control device, which is characterized in that including mounting base (1), support frame (2), servo motor (3) and ball
Lead screw (4), the mounting base (1) is tubular structure and lower end is respectively equipped with flange on it, and the bracket (2) is fixed on installation
The upper end of seat (1), the servo motor (3) are fixed on bracket (2) and make its output shaft in vertically arranged, servo motor (3)
Output shaft be connected with coaxial the first synchronous pulley (31), the ball-screw (4) is mounted vertically in bracket (2) by bearing
On, ball-screw (4) is connected with coaxial the second synchronous pulley (41), the second synchronous pulley (41) and the first synchronous pulley (31)
Between be equipped with driving belt (5), the screw (42) of ball-screw (4) is connected with valve stem coupling member (6), valve stem coupling member (6) with
Vertical guiding mechanism (7) is equipped between mounting base (1).
2. a kind of pressure regulator control device described in accordance with the claim 1, which is characterized in that the valve stem coupling member (6) opens up
Have vertical valve rod mounting hole (61), the upper end of valve stem coupling member (6) is fixed with closed type electromagnet (8), electromagnet (8) can
Flexible armature (81) are vertical with valve rod mounting hole (61)；When electromagnet (8) powers off, the front end of armature (81) is in valve rod mounting hole
(61) in, when electromagnet (8) is powered, the front end of armature (81) is in valve rod mounting hole (61) outside.
3. a kind of pressure regulator control device according to claim 2, which is characterized in that the guiding mechanism (7) includes logical
Cross the guide rail (72) that substrate (71) is fixed on mounting base (1) inner sidewall, and the sliding block being fixed on valve stem coupling member (6)
(73), sliding block (73) is vertically slidably matched with guide rail (72).
4. a kind of pressure regulator control device described in accordance with the claim 3, which is characterized in that support frame as described above (2) includes top plate
(21), bottom plate (22) and multiple support rods (23), top plate (21) and bottom plate (22) are circumferentially arranged with multiple corresponding fixation holes, branch
Strut (23) includes hexagonal prisms and the threaded post that hexagonal prisms both ends are arranged in, and the threaded post correspondence of multiple support rod (23) lower ends is worn
It crosses the fixation hole on bottom plate (22) and spinning is in the upper end of mounting base (1), the threaded post correspondence of multiple support rod (23) upper ends is worn
The fixation hole crossed on top plate (21) is simultaneously fixed by nut.
5. a kind of pressure regulator control device according to claim 4, which is characterized in that the servo motor (3) is fixed on
The downside of top plate (21), for the output shaft of servo motor (3) upward and across top plate (21), first synchronous pulley (31) is same
Axis is fixed on the output shaft upper end of servo motor (3)；The upper and lower side of the ball-screw (4) passes through bearing correspondence and top plate respectively
(21) and bottom plate (22) connection, the upper end of ball-screw (4) pass through top plate (21), and second synchronous pulley (41) is coaxially fixed
In the upper end of ball-screw (4).
6. a kind of pressure regulator control device according to claim 5, which is characterized in that the screw of the ball-screw (4)
(42) land is equipped on its periphery wall, land is circumferentially arranged with multiple up big and down small stepped holes, the valve stem coupling member (6)
Transverse part for inverted L shape structure, valve stem coupling member (6) is covered on screw (42) by the through-hole being arranged and makes it through multiple screws
It is fixedly connected with land.
7. a kind of pressure regulator control device according to claim 6, which is characterized in that valve rod mounting hole (61) setting
In the vertical part of valve stem coupling member (6), the upper end of valve stem coupling member (6) is equipped with limiting slot or limit hole, the rank of the electromagnet (8)
Iron (81) is in the limiting slot or limit hole of valve stem coupling member (6).
8. a kind of pressure regulator control device according to claim 7, which is characterized in that the electromagnet (8) is equipped with and is used for
Examine the position switch (82) of side armature (81) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966495.1A CN109114425A (en) | 2018-08-23 | 2018-08-23 | A kind of pressure regulator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966495.1A CN109114425A (en) | 2018-08-23 | 2018-08-23 | A kind of pressure regulator control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109114425A true CN109114425A (en) | 2019-01-01 |
Family
ID=64860808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810966495.1A Pending CN109114425A (en) | 2018-08-23 | 2018-08-23 | A kind of pressure regulator control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114425A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160486A (en) * | 2005-04-14 | 2008-04-09 | 喜开理株式会社 | Flow rate control valve |
| CN201190824Y (en) * | 2008-04-29 | 2009-02-04 | 济南铭迪机械制造有限公司 | Gas emergency cut-off valve |
| CN204664540U (en) * | 2015-04-24 | 2015-09-23 | 王树先 | Gas emergency cut-off magnetic valve |
| CN205806501U (en) * | 2016-07-01 | 2016-12-14 | 浙江汉特姆阀门有限公司 | Household type electromagnetic gas quick action emergency valve |
| CN206092986U (en) * | 2016-08-29 | 2017-04-12 | 黄奕博 | Electricity automatic control valve door |
| CN108167460A (en) * | 2018-01-29 | 2018-06-15 | 超达阀门集团股份有限公司 | A kind of Heisui River ash water regulating valve |
| CN208951693U (en) * | 2018-08-23 | 2019-06-07 | 北京鑫广进燃气设备研究所 | A kind of pressure regulator control device |
-
2018
- 2018-08-23 CN CN201810966495.1A patent/CN109114425A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160486A (en) * | 2005-04-14 | 2008-04-09 | 喜开理株式会社 | Flow rate control valve |
| CN201190824Y (en) * | 2008-04-29 | 2009-02-04 | 济南铭迪机械制造有限公司 | Gas emergency cut-off valve |
| CN204664540U (en) * | 2015-04-24 | 2015-09-23 | 王树先 | Gas emergency cut-off magnetic valve |
| CN205806501U (en) * | 2016-07-01 | 2016-12-14 | 浙江汉特姆阀门有限公司 | Household type electromagnetic gas quick action emergency valve |
| CN206092986U (en) * | 2016-08-29 | 2017-04-12 | 黄奕博 | Electricity automatic control valve door |
| CN108167460A (en) * | 2018-01-29 | 2018-06-15 | 超达阀门集团股份有限公司 | A kind of Heisui River ash water regulating valve |
| CN208951693U (en) * | 2018-08-23 | 2019-06-07 | 北京鑫广进燃气设备研究所 | A kind of pressure regulator control device |
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Address after: 102212 No. 1 Changcui Road, Cuicun Town, Changping District, Beijing Applicant after: Beijing Xinfengtai Gas Equipment Co.,Ltd. Address before: No. 1, Changcui Road, Cuicun Town, Changping District, Beijing 102500 Applicant before: BEIJING XINGUANGJIN GAS DEVICE Research Institute |
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