CN106286859A - A kind of low-power consumption electromechanical valve and gas meter, flow meter - Google Patents
A kind of low-power consumption electromechanical valve and gas meter, flow meter Download PDFInfo
- Publication number
- CN106286859A CN106286859A CN201610940512.5A CN201610940512A CN106286859A CN 106286859 A CN106286859 A CN 106286859A CN 201610940512 A CN201610940512 A CN 201610940512A CN 106286859 A CN106286859 A CN 106286859A
- Authority
- CN
- China
- Prior art keywords
- sealing member
- low
- power consumption
- valve
- valve rod
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a kind of low-power consumption electromechanical valve and gas meter, flow meter.Relate to electromechanical valve field.This low-power consumption electromechanical valve includes housing, the first sealing member, the second sealing member and valve rod.First sealing member, the second sealing member and valve rod are arranged in housing.First sealing member is connected with each other with valve rod, and housing is provided with air inlet, and the first sealing member is salable or opens air inlet.Being provided with guide's steam vent on first sealing member, the second sealing member is salable or opens guide's steam vent.During valve opening, the second sealing member can be away from the first sealing member.Present invention also offers gas meter, flow meter, it includes this low-power consumption electromechanical valve.This low-power consumption electromechanical valve can realize normal switch valve under low-power consumption, low current.This gas meter, flow meter energy consumption is low, and safety coefficient is higher.
Description
Technical field
The present invention relates to electromechanical valve field, in particular to a kind of low-power consumption electromechanical valve and use this low-power consumption machine
The gas meter, flow meter of electricity valve.
Background technology
IC-card gas meter, flow meter is widely used, and during user's gas, the micro computer in IC-card intelligent meter is examined and made cuts surplus automatically
Residual volume, purchased tolerance will die by valve-closing after using up, and user need to purchase gas again can make IC-card gas meter, flow meter valve opening again
Supply.
At present, commonly used industrial intelligent gas meter ventilation is big, and operating pressure requires height, so inside nominal diameter
Greatly, electromechanical valve lifting surface area is big.Just need to strengthen switch valve electric current by existing electromechanical valve and just can make electromechanical valve normal switch valve, increase
The power consumption of electromechanical valve, there is also potential safety hazard.
Therefore, under a kind of energy of research and development low-power consumption, low current, normal switch valve is to be presently required urgently to solve the technical problem that.
Summary of the invention
It is an object of the invention to provide a kind of low-power consumption electromechanical valve, this low-power consumption electromechanical valve can realize low-power consumption, low electricity
Flow down normal switch valve.
Another object of the present invention is to provide a kind of gas meter, flow meter, this gas meter, flow meter uses this low-power consumption electromechanical valve, its energy consumption
It is substantially reduced, and safety coefficient is higher.
The present invention solves it and technical problem is that what the following technical scheme of employing realized:
A kind of low-power consumption electromechanical valve, including housing, the first sealing member, the second sealing member and valve rod；Described first sealing member,
Described second sealing member and described valve rod are arranged in described housing.Described first sealing member is connected with each other with described valve rod, institute
Stating housing and be provided with air inlet, described first sealing member is salable or opens described air inlet.Arrange on described first sealing member
Having guide's steam vent, described second sealing member is salable or opens described guide's steam vent.Described first sealing member is opened described
Before air inlet, described second sealing member can be away from described first sealing member to open described guide's steam vent.
Further, described second sealing member and described valve rod are fixing to be connected, and described valve rod also includes keeper, and described the
One sealing member is arranged between described keeper and described second sealing member, and is connected with described valve stem slides.
Further, described housing is provided with the first grip portions at described air inlet, and described first grip portions can be with institute
State the first sealing member to be mutually adjacent to.
Further, described first sealing member being provided with auxiliary section, described first grip portions is mutual with described auxiliary section
Coordinate.
Further, described first grip portions is the first sealing ring；Described auxiliary section is groove, described groove and described the
One sealing ring cooperates.
Further, described first sealing member is set on described valve rod, and described second sealing member is set in described valve rod
On.
Further, described second sealing member being provided with the second grip portions, described second grip portions can be with described first
Sealing member is mutually adjacent to.
Further, described second grip portions is the second sealing ring.
The present invention also provides for a kind of gas meter, flow meter, including above-mentioned low-power consumption electromechanical valve, this low-power consumption electromechanical valve include housing, the
One sealing member, the second sealing member and valve rod；Described first sealing member, described second sealing member and described valve rod are arranged on described shell
Internal.Described first sealing member is connected with each other with described valve rod, and described housing is provided with air inlet, and described first sealing member can be close
Seal or open described air inlet.Being provided with guide's steam vent on described first sealing member, described second sealing member is salable or beats
Open described guide's steam vent.During valve opening, described second sealing member can be away from described first sealing member.
Further, described gas meter, flow meter also includes that gas meter housing, described low-power consumption electromechanical valve are arranged at described gas meter, flow meter
In housing.
The embodiment of the present invention provides the benefit that: this low-power consumption electromechanical valve includes housing, the first sealing member, the second sealing member
And valve rod.First sealing member, the second sealing member and valve rod are arranged in housing.First sealing member is connected with each other with valve rod.Housing
Being provided with air inlet, the first sealing member is salable or opens air inlet.Being provided with guide's steam vent on first sealing member, second is close
Sealing is salable or opens guide's steam vent.Before first sealing member opens air inlet, the second sealing member can seal away from first
Part, opens guide's steam vent, makes the gases at high pressure in housing discharge, and now, this low-power consumption electromechanical valve inner and outer air pressure is close, then beats
Open the first sealing member, power consumption can be substantially reduced.Therefore, this low-power consumption electromechanical valve can realize normal switch under low-power consumption, low current
Valve.This gas meter, flow meter uses this power consumption electromechanical valve energy consumption relatively low, and safety coefficient is higher.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiment of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
The valve opening view of the low-power consumption electromechanical valve that Fig. 1 provides for the embodiment of the present invention.
The structural representation of the first sealing member of the low-power consumption electromechanical valve that Fig. 2 provides for the embodiment of the present invention.
The valve rod of the low-power consumption electromechanical valve that Fig. 3 provides for the embodiment of the present invention and the structural representation of the second sealing member.
The closed valve state schematic diagram of the low-power consumption electromechanical valve that Fig. 4 provides for the embodiment of the present invention.
Icon: 100-low-power consumption electromechanical valve；110-housing；112-the first housing；1121-air inlet；1123-first is promptly
Portion；114-the second housing；120-the first sealing member；122-guide's steam vent；124-auxiliary section；126-through hole；130-second is close
Sealing；132-the second grip portions；140-valve rod；142-keeper；144-is in transmission connection portion；1441-chute；150-driving member；
The spacing guide of 160-；162-gathering sill.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Generally implement with the present invention illustrated described in accompanying drawing herein
The assembly of example can be arranged with various different configurations and design.
Therefore, detailed description to the embodiments of the invention provided in the accompanying drawings is not intended to limit claimed below
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into the model of present invention protection
Enclose.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In describing the invention, it should be noted that term " on ", the orientation of the instruction such as " interior " or position relationship be base
In orientation shown in the drawings or position relationship, or the orientation usually put when this invention product uses or position relationship, only
It is for the ease of the description present invention and to simplify description rather than instruction or imply that the device of indication or element must have specifically
Orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Describe additionally, term " first ", " second " etc. are only used for distinguishing, and it is not intended that indicate or imply relatively important
Property.
In describing the invention, in addition it is also necessary to explanation, unless additionally had more specific regulation and restriction, term " sets
Put ", " connection " should do more broadly understanding, such as, " connection " can be fixing connection, it is also possible to is to removably connect, or one
Body ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with in concrete condition understanding
State term concrete meaning in the present invention.
Below in conjunction with the accompanying drawings, embodiments of the present invention are elaborated, in the case of not conflicting, following enforcement
Feature in example can be mutually combined.
The valve opening view of the low-power consumption electromechanical valve 100 that Fig. 1 provides for the present embodiment.Refer to Fig. 1, the present invention is real
The low-power consumption electromechanical valve 100 that executing example provides includes housing the 110, first sealing member the 120, second sealing member 130, valve rod 140, transmission
Part 150 and spacing guide 160.
First sealing member the 120, second sealing member 130, valve rod 140, driving member 150 and spacing guide 160 are arranged at
In housing 110.First sealing member the 120, second sealing member 130 and driving member 150 are connected with valve rod 140 respectively.Driving member 150 is solid
Being scheduled on housing 110, spacing guide 160 is arranged on driving member 150, and valve rod 140 is slidably connected with spacing guide 160.
Housing 110 includes that the first housing 112 and the second housing 114, the first housing 112 and the second housing 114 are connected with each other.
Being provided with air inlet 1121 and the first grip portions 1123 on first housing 112, the first grip portions 1123 is arranged on air inlet 1121
Place.First sealing member 120 can close or open air inlet 1121.First grip portions 1123 is used for coordinating with the first sealing member 120,
It is sealed into QI KOU 1121 more closely.
As preferably, in the present embodiment, the first grip portions 1123 is sealing ring.This sealing ring and the first sealing member 120
Coordinate, with tight seal air inlet 1121.
It should be noted that this first grip portions 1123 is set to sealing ring, but it is not limited to this, in practical operation, can root
According to those skilled in the art's practical operation experience, the first grip portions 1123 is set to other structures, such as magnetic part etc..
The structural representation of the first sealing member 120 of the low-power consumption electromechanical valve 100 that Fig. 2 provides for the present embodiment.Refer to
Fig. 2, the first sealing member 120 is provided with guide's steam vent 122, auxiliary section 124 and through hole 126.
Through hole 126 is arranged on the center of the first sealing member 120, passes for valve rod 140, makes the first sealing member 120 and valve rod
140 are slidably connected.Guide's steam vent 122 is arranged on the periphery of through hole 126.Auxiliary section 124 is one in circular groove, arranges
At the edge of the first sealing member 120, and towards spacing guide 160.
It should be noted that according to those skilled in the art's practical operation experience, can drive as long as valve rod 140 can be realized
First sealing member 120 moves, and the first sealing member 120 can fixing with valve rod 140 be connected, or is arranged on one end of valve rod 140, or
It it is other connected mode.
As preferably, in the present embodiment, the first sealing member 120 is rubber seal cap.It is understood that the first sealing member
120 when being sealed into QI KOU 1121, when valve rod 140 drives the first sealing member 120 to act on air inlet 1121, due to rubber seal cap
Having elasticity, the first grip portions 1123 extrudes with rubber seal cap so that groove outer peripheral edge can overturn, thus tight with sealing ring
Close clamping, forms certain adhesive force.
Certainly, in other embodiments, the first grip portions 1123 may be designed in magnetic part, then also may be used in auxiliary section 124
Being set to magnetic part, the two cooperates, and forms adhesive force, this air inlet 1121 of tight seal.
As preferably, in the present embodiment, the cross section of multiple guide's steam vents 122 is rounded.In practical operation, however it is not limited to
This, can be able to change according to those skilled in the art's practical operation experience, the quantity of guide's steam vent 122, can be one,
Two, three etc., the shape in its cross section be also designed to triangle, rectangle or other.
The valve rod 140 of the low-power consumption electromechanical valve 100 that Fig. 3 provides for the present embodiment and the structural representation of the second sealing member 130
Figure.Refer to Fig. 3, valve rod 140 includes keeper 142 and the portion 144 that is in transmission connection.
Keeper 142 is arranged on one end of valve rod 140, for limiting the slip of the first sealing member 120.Be in transmission connection portion
144 other ends being arranged on valve rod 140, are used for connecting driving member 150.Valve rod 140 is slidably connected with driving member 150.
As preferably, in the present embodiment, keeper 142 is nut, threadeds with valve rod 140.
As preferably, in the present embodiment, the portion 144 that is in transmission connection, for strip, is provided with chute 1441, chute in the middle part of it
1441 for being slidably connected with driving member 150.
Second sealing member 130 is set on valve rod 140, and fixing with valve rod 140 is connected.Second sealing member 130 includes
Two grip portions 132.
Second grip portions 132 is arranged on the periphery of the second sealing member 130, and towards the first sealing member 120.
As preferably, the second grip portions 132 is also sealing ring.
It should be noted that the annexation of the second sealing member 130 and valve rod 140 is not limited to this, in other embodiments
In, can be independently arranged the first sealing member 120, and increase autonomous control system and control the first sealing member 120 and close or open guide
Steam vent 122.
Continuing referring to Fig. 1, spacing guide 160 is fixed on driving member 150.It is provided with in the middle part of spacing guide 160
Gathering sill 162, on valve rod 140, the second sealing member 130 and be in transmission connection between portion 144 one section are arranged in gathering sill 162.Valve
Bar 140 can slide by respective guide slot 162.
Driving member 150 is fixed on the second housing 114.Driving member 150 is slided by the portion of being in transmission connection 144 with valve rod 140
Connect.Driving member 150 can control valve rod 140 away from or near air inlet 1121.
The closed valve state schematic diagram of the low-power consumption electromechanical valve 100 that Fig. 4 provides for the present embodiment.Incorporated by reference to reference to Fig. 1 and Tu
4, the operation principle of low-power consumption electromechanical valve 100 that the present embodiment provides is: fixing by the second sealing member 130 and valve rod 140
Connecting, the first sealing member 120 is slidably connected with valve rod 140, and the second sealing member 130 can play position-limiting action, and second seals
Part 130 can limit the slip on valve rod 140 of first sealing member 120 together with keeper 142.Thus it is same to realize valve rod 140
Time drive the first sealing member 120 to move with the second sealing member 130.
When valve rod 140 is near air inlet 1121, along with the motive force effect of valve rod 140, the second sealing member 130 can promote
First sealing member 120 is sealed into QI KOU 1121, and the second sealing member 130 salable guide steam vent 122.Now the first grip portions
1123 with the mutual clamping in auxiliary section 124, formation adhesive force.
When valve rod 140 is away from air inlet 1121, owing to the first sealing member 120 can slide by valve rod 140 relatively, and first
The adhesive force effect that grip portions 1123 is formed with the mutual clamping in auxiliary section 124, the second sealing member 130 can with valve rod 140 elder generation away from
First sealing member 120, thus open guide's steam vent 122.
In this low-power consumption electromechanical valve 100 work process, when the gases at high pressure within this housing 110 are discharged, in housing 110
After air pressure drop as little as normal pressure, driving member 150 band ovable valve stem 140 can be controlled and be further continued for away from air inlet 1121, thus open air inlet
Mouth 1121.
Therefore, the low-power consumption electromechanical valve 100 of this structure can realize normal switch valve under low-power consumption, low current.
Another embodiment of the present invention provides a kind of gas meter, flow meter, and this gas meter, flow meter includes low-power consumption electromechanical valve 100 and combustion gas
Watch shell, and low-power consumption electromechanical valve 100 is arranged on the inside of gas meter housing.
Current domestic big specification industrial fuel gas table typically uses electromechanical valve external, and the gas meter, flow meter of this structure easily suffers
Artificial destruction, and the external gas meter, flow meter of electromechanical valve is to installing external connector and pipeline proposes new requirement.In employing electromechanical valve
The gas meter, flow meter putting this structure can avoid problems, is substantially reduced energy consumption, and safety coefficient is higher.
In sum, when the low-power consumption electromechanical valve 100 that the embodiment of the present invention provides is applied, low-power consumption, low current can be realized
Lower normal switch valve.This gas meter, flow meter uses this low-power consumption electromechanical valve 100, and energy consumption is relatively low, and safety coefficient is higher.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a low-power consumption electromechanical valve, it is characterised in that include housing, the first sealing member, the second sealing member and valve rod；Described
One sealing member, described second sealing member and described valve rod are arranged in described housing；Described first sealing member and described valve rod phase
Connecting, described housing is provided with air inlet, and described first sealing member is salable or opens described air inlet；Described first seals
Being provided with guide's steam vent on part, described second sealing member is salable or opens described guide's steam vent；Described first sealing member
Before opening described air inlet, described second sealing member can be away from described first sealing member to open described guide's steam vent.
2. low-power consumption electromechanical valve as claimed in claim 1, it is characterised in that described second sealing member is fixing with described valve rod even
Connecing, described valve rod also includes that keeper, described first sealing member are arranged between described keeper and described second sealing member, and
It is connected with described valve stem slides.
3. low-power consumption electromechanical valve as claimed in claim 2, it is characterised in that described housing is provided with the at described air inlet
One grip portions, described first grip portions mutually can be adjacent to described first sealing member.
4. low-power consumption electromechanical valve as claimed in claim 3, it is characterised in that be provided with auxiliary section on described first sealing member,
Described first grip portions cooperates with described auxiliary section.
5. low-power consumption electromechanical valve as claimed in claim 4, it is characterised in that described first grip portions is the first sealing ring；Institute
Stating auxiliary section is groove, and described groove cooperates with described first sealing ring.
6. the low-power consumption electromechanical valve as described in any one of claim 2-5, it is characterised in that described first sealing member is set in institute
Stating on valve rod, described second sealing member is set on described valve rod.
7. low-power consumption electromechanical valve as claimed in claim 2, it is characterised in that be provided with second on described second sealing member promptly
Portion, described second grip portions is mutually adjacent to described first sealing member.
8. low-power consumption electromechanical valve as claimed in claim 7, it is characterised in that described second grip portions is the second sealing ring.
9. a gas meter, flow meter, it is characterised in that it includes the low-power consumption electromechanical valve as described in any one of claim 1-8.
10. gas meter, flow meter as claimed in claim 9, it is characterised in that described gas meter, flow meter also includes gas meter housing, described low merit
Consumption electromechanical valve is arranged in described gas meter shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940512.5A CN106286859A (en) | 2016-11-01 | 2016-11-01 | A kind of low-power consumption electromechanical valve and gas meter, flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940512.5A CN106286859A (en) | 2016-11-01 | 2016-11-01 | A kind of low-power consumption electromechanical valve and gas meter, flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286859A true CN106286859A (en) | 2017-01-04 |
Family
ID=57720492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610940512.5A Pending CN106286859A (en) | 2016-11-01 | 2016-11-01 | A kind of low-power consumption electromechanical valve and gas meter, flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286859A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825352A (en) * | 2017-12-05 | 2018-03-23 | 成都秦川物联网科技股份有限公司 | Seal provision for disengagement and gas meter, flow meter recovery system |
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| DE19539921C1 (en) * | 1995-10-26 | 1997-02-27 | Ranco Inc | Exhaust-gas recirculation valve |
| CN2426054Y (en) * | 1999-06-02 | 2001-04-04 | 周永平 | Electrical mechanical integrated gas control valve |
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2016
- 2016-11-01 CN CN201610940512.5A patent/CN106286859A/en active Pending
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|---|---|---|---|---|
| DE19539921C1 (en) * | 1995-10-26 | 1997-02-27 | Ranco Inc | Exhaust-gas recirculation valve |
| CN2426054Y (en) * | 1999-06-02 | 2001-04-04 | 周永平 | Electrical mechanical integrated gas control valve |
| WO2009031994A1 (en) * | 2007-09-06 | 2009-03-12 | Hoeptner Herbert W Iii | Faucet type valve with backflow control in handle structure |
| CN201461977U (en) * | 2009-07-03 | 2010-05-12 | 邵柯璇 | Gas meter electronic internal valve |
| CN202442736U (en) * | 2012-03-02 | 2012-09-19 | 周蔓 | Special gas valve for industrial IC (integrated circuit) card integral diaphragm type gas meter |
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| Title |
|---|
| D•法耳克等: "《金属加工技术（下册）》", 30 April 1990, 劳动人事出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825352A (en) * | 2017-12-05 | 2018-03-23 | 成都秦川物联网科技股份有限公司 | Seal provision for disengagement and gas meter, flow meter recovery system |
| CN107825352B (en) * | 2017-12-05 | 2023-06-09 | 成都秦川物联网科技股份有限公司 | Seal ring dismounting device and gas meter recovery system |
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Address after: 610199 Longquanyi, Sichuan Province Industrial Park licensing Applicant after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610199 Longquanyi, Sichuan Province Industrial Park licensing Applicant before: Chengdu Taichuan Technology Development Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170104 |