CN207864717U - A kind of device that emergent control valve is closed - Google Patents
A kind of device that emergent control valve is closed Download PDFInfo
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- CN207864717U CN207864717U CN201721246969.2U CN201721246969U CN207864717U CN 207864717 U CN207864717 U CN 207864717U CN 201721246969 U CN201721246969 U CN 201721246969U CN 207864717 U CN207864717 U CN 207864717U
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- drive link
- closed
- rotating member
- control valve
- installs case
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- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims description 26
- 230000006698 induction Effects 0.000 claims description 24
- 238000002955 isolation Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000008450 motivation Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model is related to valve technology field, the device closed in particular to a kind of emergent control valve.The utility model discloses the devices that a kind of emergent control valve is closed, including installs case, drive link, tripping mechanism and valve.Drive link is arranged in installs case, and drive link can move under external force.Tripping mechanism is arranged in installs case, tripping mechanism includes rotational hook, buckle, movable device, connecting rod and elastic component, rotational hook be rotatably arranged in installs case and be clasped, connecting rod is connect with rotational hook, and has the trend moved along preset direction.Valve is connect with connecting rod.Drive link can be under the effect of external force with mobile to drive movable device to move, and connecting rod can move when rotational hook is detached from and buckles along preset direction that valve is driven to close.The device that the emergent control valve is closed can prevent pipeline breaking in strong earthquakes automatic-closing valve, cause the generation of content leaks and secondary disaster in pipe.
Description
Technical field
The utility model is related to valve technology field, the device closed in particular to a kind of emergent control valve.
Background technology
Currently, the security control for oil transportation, gas pipeline uses solenoid valve, the control of the solenoid valve to need alternating current more
Or direct current, and power consumption is larger, when an earthquake occurs, is easy to cause zonal power grid paralysis so that can not pass through electromagnetism
Valve controls oil transportation or gas pipeline.
Due to that in earthquake, cannot control oil transportation, gas pipeline, and in face of natural calamity, by manpower
Go to oil transportation or gas pipeline carry out close there are many obstacles.
Therefore when preventing earthquake from occurring, to cause to be badly in need of research and development to oil transportation or gas pipeline rupture to cause secondary disaster
A kind of valve that can be closed when earthquake occurs to oil transportation or gas pipeline.
Utility model content
The purpose of this utility model is to provide the device that a kind of emergent control valve is closed, which closes
Apparatus structure it is simple, it is easy for installation, just can cut off transfer pipeline when earthquake occurs by being mounted on pipeline, avoid
When earthquake occurs, oil transportation or gas pipeline rupture, the content leaks such as oil, gas for being conveyed in pipeline cause secondary disaster.
What the embodiments of the present invention were realized in：
A kind of device that emergent control valve is closed, including installs case, drive link, tripping mechanism and valve；
Drive link is arranged in installs case, and drive link can move under external force；
Tripping mechanism is arranged in installs case, and tripping mechanism includes rotational hook, buckle, movable device, connecting rod and bullet
Property part, rotational hook be rotatably arranged in installs case and be clasped, connecting rod is connect with rotational hook, and is had along pre-
The trend of set direction movement；
Valve is connect with connecting rod；
Drive link can under the effect of external force with mobile to drive movable device to move, to make snapping motion and with rotation
Hook is detached from, and connecting rod can be detached from the when of buckling in rotational hook and move along preset direction that valve to be driven to close.
In a kind of embodiment of the utility model：
The device that emergent control valve is closed further includes earthquake induction mechanism, and earthquake induction mechanism is arranged in installs case,
Earthquake induction mechanism includes balance plate, drive link and the gravity block coordinated with balance plate.
In a kind of embodiment of the utility model：
Earthquake induction mechanism includes first baffle and second baffle, and drive link and balance plate setting are in first baffle and the
Between two baffles, first baffle and second baffle can be rotated relative to installs case to close to balance plate direction.
In a kind of embodiment of the utility model：
Isolation board is equipped in installs case, isolation board is used to separate earthquake induction mechanism and tripping mechanism, and on isolation board
Equipped with for drive link by through-hole.
In a kind of embodiment of the utility model：
Movable device includes the first rotating member and the second rotating member；
First rotating member and the second rotating member are spindle rotationally arranged in by spring in installs case, and the first rotating member
And second rotating member be equipped with can mutually matched positioning region；
First rotating member includes the driving column for coordinating with drive link, the second rotating member include for buckle against
To column.
In a kind of embodiment of the utility model：
Movable device includes fixed plate, fixed plate be equipped with respectively with the first groove and second to column and driving column cooperation
Groove.
In a kind of embodiment of the utility model：
Second rotating member include for rotational hook against block.
In a kind of embodiment of the utility model：
The device that emergent control valve is closed further includes by cylinder, and drive link is arranged in by cylinder, and in drive link
And by being equipped with return unit between cylinder.
In a kind of embodiment of the utility model：
Drive link close to one end of movable device be equipped with for movable device against Z-shaped plate；
Be equipped in installs case for drive link against bar.
The technical solution of the utility model at least has the advantages that：
The apparatus structure that emergent control valve provided by the utility model is closed is simple, easy for installation, by being mounted on pipe
Just transfer pipeline can be cut off when earthquake occurs on road, avoided when earthquake occurs, oil transportation or gas pipeline rupture, in pipeline
The content leaks such as oil, the gas of interior conveying cause secondary disaster.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the device that emergent control valve is closed in the utility model embodiment；
Fig. 2 is the structural schematic diagram of tripping mechanism in the utility model embodiment；
Fig. 3 is the structural schematic diagram of earthquake induction mechanism in the utility model embodiment；
Fig. 4 is the structural schematic diagram of movable device in the utility model embodiment；
Fig. 5 is the structural schematic diagram of fixed plate in the utility model embodiment.
Icon：The device that 200- emergent control valves are closed；210- installs cases；220- earthquake induction mechanisms；221- is balanced
Plate；222- drive links；223- gravity blocks；230- tripping mechanisms；231- rotational hooks；232- is buckled；260- movable devices；233-
Connecting rod；224- first baffles；225- second baffles；The first rotating members of 234-；The second rotating members of 235-；The positioning regions 236-；237-
Driving column；238- supports column；270- fixed plates；The first grooves of 271-；The second grooves of 272-；239- blocks；226- passes through cylinder；227-
Z-shaped plate；273- bars.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the utility model embodiment, it should be noted that the orientation of the instructions such as term "inner", "lower" or
Position relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the side usually put
Position or position relationship, are merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relative importance.
In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise,
Term " setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can be directly connected, can also can be indirectly connected through an intermediary two elements
Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the utility model with concrete condition
In concrete meaning.
Embodiment
It please refers to Fig.1.
Fig. 1 shows the concrete structure for the device 200 that the emergent control valve provided in embodiment is closed.
From figure 1 it appears that the device 200 that the emergent control valve is closed includes installs case 210, drive link 222, takes off
Buckle mechanism 230 and valve.
Wherein, Fig. 2 is please referred to, tripping mechanism 230 is arranged in installs case 210, and tripping mechanism 230 includes rotational hook
231, buckle 232, movable device 260, connecting rod 233 and elastic component, rotational hook 231 are rotatably arranged in installs case 210
It is interior and with 232 cooperation of buckle, connecting rod 233 connect with rotational hook 231, and has the trend moved along preset direction.
Referring once again to Fig. 1, valve is connect with connecting rod 233.
Drive link 222 can be under the effect of external force with mobile to drive movable device 260 to move, to make buckle 232 transport
Dynamic and be detached from rotational hook 231, connecting rod 233 can be when rotational hook 231 be detached from buckle 232 along preset direction (arrow in Fig. 1
Shown direction) it is mobile to drive valve to close.
In addition, in the present embodiment, please referring to Fig. 3 and combining Fig. 1, the device 200 which closes may be used also
To include earthquake induction mechanism 220, earthquake induction mechanism 220 is for when earthquake occurs, driving drive link 222 to move.Specifically
, which is arranged in installs case 210, and earthquake induction mechanism 220 includes balance plate 221, drive link 222
And the gravity block 223 coordinated with balance plate 221.
The device 200 that emergent control valve is closed, which is intended to cut off when an earthquake occurs, installs the dress that the emergent control valve is closed
The pipeline for setting 200 avoids the content leaks of the conveying in pipeline, leads to secondary disaster.
Specifically, in the present embodiment, the device 200 which closes is mounted on gas transmission or pipeline road
In, and not when an earthquake occurs, the device 200 which closes is in normally open.At this point, gravity block 223
Coordinate with balance plate 221,222 holding position of drive link is constant, and movable device 260 is not influenced by external force so that buckle 232
It is in fastening state with rotational hook 231.And when an earthquake occurs, earthquake induction mechanism 220 shakes therewith, causes to install
Gravity block 223 in case 210 shakes in installs case 210, and when the intensity of earthquake is excessive, 223 shaking degree of gravity block increases,
Cause gravity block 223 to be detached from balance plate 221, and hits drive link 222 under gravity.Drive link 222 due to by
The shock of gravity block 223 can cause the position of drive link 222 to change.Position change after drive link 222 after under
The tripping mechanism 230 of side contacts, and the movable device 260 in tripping mechanism 230 is driven move, due to movable device 260 and
232 contact of buckle, and buckle 232 and engage when in use with rotational hook 231, and when 232 fortune of the driving of movable device 260 buckle
After dynamic, rotational hook 231 can be made to be detached from buckle 232 so that rotational hook 231 be detached from engage after towards preset direction
Rotation, so that connecting rod 233 can move when rotational hook 231 is detached from buckle 232 along preset direction that valve is driven to close
It closes.
It should be noted that in the embodiments of the present invention, the shape of gravity block 223 can be a variety of shape,
And balance plate 221 has the installation site that can be placed and be adapted with the shape of gravity block 223, it is therefore an objective to so that the balance
Plate 221, only can be in earthquake when more than certain intensity when carrying gravity block 223, and gravity block 223 just can be with balance plate 221
It is detached from and hits drive link 222.And drive link 222 needs to be arranged relative to balance plate 221, purpose during setting
It is that can be detached from balance plate 221, and in the effect of gravity so that gravity block 223 is when an earthquake occurs in the case of shaking
Under, hit drive link 222 so that the position of drive link 222 changes, and then triggered activity mechanism 260 moves so that rotation
Hook 231 is detached from buckle 232.
Further, in the present embodiment, referring once again to Fig. 3, earthquake induction mechanism 220 may include first baffle
224 and second baffle 225, drive link 222 and balance plate 221 are arranged between first baffle 224 and second baffle 225, the
One baffle 224 and second baffle 225 can be rotated relative to installs case 210 to close to 221 direction of balance plate.First baffle 224
And second baffle 225 setting the purpose of be ensure gravity block 223 with balance plate 221 be detached from after can be connect with drive link 222
It touches and hits drive link 222.It secondly, can also will be with drive link 222 by rotating first baffle 224 and second baffle 225
The gravity block 223 of contact is moved on balance plate 221 and coordinates with balance plate 221.
Installs case 210 is for installing earthquake induction mechanism 220 and tripping mechanism 230, by by earthquake induction mechanism 220
And tripping mechanism 230 is arranged in installs case 210, the agent structure for the device 200 that can close the emergent control valve
It is enclosed in installs case 210 and is relatively isolated with external environment, avoid earthquake induction mechanism 220 and tripping mechanism 230 by outer
The influence of boundary's environment, during especially preventing prolonged use, earthquake induction mechanism 220 and tripping mechanism 230 are by outer
Boundary's environment influences and situations such as corrosion occurs, influences the normal use of the device 200 of emergent control valve closing.
Further, in the present embodiment, isolation board can be equipped in installs case 210, isolation board is for separating earthquake sense
Answer mechanism 220 and tripping mechanism 230, and isolation board be equipped with for drive link 222 by through-hole.Pass through the setting of isolation board
Earthquake induction mechanism 220 and tripping mechanism 230 is isolated.
In addition, in the present embodiment, being equipped between tripping mechanism 230 and earthquake induction mechanism 220 through cylinder 226, being passed
Lever 222 is arranged in by cylinder 226, and in drive link 222 and by being equipped with return unit between cylinder 226.Pass through return unit
Convenient for making drive link 222 reset, while dropout machine can be enabled to after gravity block 223 and drive link 222 disengage
The reset of structure 230 is unaffected, and can be fixed on isolation board by cylinder 226, while can also simplify the emergent control
The structure for the device 200 that valve is closed.
The effect of movable device 260 is the movement of undertaking drive link 222, and after the driving of driven bar 222,
Change the position of buckle 232, is detached from rotational hook 231 so that buckling 232, thus the 260 direct purpose of movable device
It is when an earthquake occurs, after change in location occurs for gravity block 223 and drive link 222, to change the cooperation shape of rotational hook 231
State, to realize the purpose for closing valve.Specifically, in the present embodiment, please referring to Fig. 4, movable device 260 includes first turn
Moving part 234 and the second rotating member 235, the first rotating member 234 and the second rotating member 235 are spindle rotationally arranged in peace by spring
In vanning 210 (in the rotation direction such as Fig. 4 of the first rotating member 234 and the second rotating member 235 shown in arrow direction), and first
Rotating member 234 and the second rotating member 235 be equipped with can mutually matched positioning region 236, the first rotating member 234 include for biography
Lever 222 coordinate driving column 237, the second rotating member 235 include for buckle 232 against support column 238.Due to first turn
Moving part 234 and the second rotating member 235 are spindle rotationally arranged in by spring in installs case 210, and when the first rotating member
234 and second rotating member 235 when overcoming elastic-restoring force that positioning region 236 is made to abut, the first rotating member 234 at this time
Just have the trend of rotation under the action of elastic-restoring force with the second rotating member 235, and when the change in location of drive link 222
When, drive link 222 can be contacted with the driving column 237 of the first rotating member 234, driving the first rotating member 234 rotation so that first turn
The snap-fit relationship of the positioning region 236 of moving part 234 and the positioning region 236 of the second rotating member 235 disappears, and leads to the first rotating member 234
It will be rotated to the direction of spring contraction under the action of elastic-restoring force with the second rotating member 235.At this point, due to second turn
Moving part 235 be equipped with for buckle 232 against support column 238, so the second rotating member 235 rotation when, will driving card
232 rotation of button.After the position for buckling 232 changes so that buckle 232 is detached from rotational hook 231 to be coordinated.Due to rotation
Hook 231 needs to overcome certain elastic-restoring force when with 232 cooperation of buckle, so rotational hook 231 has along default side
To the trend of movement, and the preset direction is just the direction that connecting rod 233 pushes the valve block of valve to be moved to the direction for closing valve,
So when rotational hook 231 is detached from buckle 232, connecting rod 233 just can move that valve is driven to close along preset direction.
Further, in the present embodiment, Fig. 5 is please referred to, fixed plate 270 can also be set in installs case 210, and solid
Fixed board 270 be equipped with respectively with to column 238 and driving column 237 cooperation the first groove 271 and the second groove 272.Purpose is limit
The first rotating member 234 and the second rotating member 235 are made in the rotational angle being detached from after coordinating.
In addition, in the present embodiment, to ensure the rotational hook 231 after the driving of driven bar 222 of movable device 260
Can with buckle 232 be detached from coordinate, therefore the second rotating member 235 may include for rotational hook 231 against block 239.
As a result, when the snap-fit relationship of the positioning region 236 of the first rotating member 234 and the positioning region 236 of the second rotating member 235 disappears, the
One rotating member 234 and the second rotating member 235 will rotate under the action of elastic-restoring force to the direction of spring contraction, setting
Block 239 on the second rotating member 235 will with rotational hook 231 against and push rotational hook 231 to rotate so that rotation
Hook 231 is detached from buckle 232, so that valve is closed.
Further, in the present embodiment, drive link 222 close to one end of movable device 260 be equipped with for activity
Mechanism 260 against Z-shaped plate 227.It can change contact distance of the drive link 222 with movable device 260 by Z-shaped plate 227, and
The contact range of adjustment between the two.
Further, in the present embodiment, be equipped in installs case 210 for drive link 222 against bar 273.Mesh
Be limit drive link 222 motion range.
It should be noted that during being connected to setting, for enable the movement by connecting rod 233 play closing or
It is the effect of Open valve, therefore connecting rod 233 can be connect with the valve block of valve, so as to be transported with moving valve plate by connecting rod 233
It is dynamic, to play the effect of closing or Open valve.
Based on the device 200 that above-mentioned emergent control valve is closed, the invention also discloses a kind of transfer pipeline,
The device 200 closed including at least one above-mentioned emergent control valve.
The operation principle of device 200 that the emergent control valve is closed is：
The device 200 that the emergent control valve is closed is mounted in gas transmission or pipeline road, and earthquake is not occurring
When, the device 200 which closes is in normally open.At this point, gravity block 223 coordinates with balance plate 221, transmission
222 holding position of bar is constant, and movable device 260 is not influenced by external force so that buckle 232 is in card with rotational hook 231
Conjunction state.
And when an earthquake occurs, earthquake induction mechanism 220 shakes therewith, leads to the gravity block 223 in installs case 210
It is shaken in installs case 210, when the intensity of earthquake is excessive, 223 shaking degree of gravity block increases, and leads to gravity block 223 and puts down
The plate 221 that weighs is detached from, and hits drive link 222 under gravity.Drive link 222 is due to the shock by gravity block 223, meeting
The position of drive link 222 is caused to change.Position change after drive link 222 after connect with the tripping mechanism 230 of lower section
It touches, and the movable device 260 in tripping mechanism 230 is driven to move.
Movable device 260 and in the driving of driven bar 222, drive link 222 can and the first rotating member 234 transmission
Column 237 contacts, driving the first rotating member 234 rotation so that the positioning region 236 of the first rotating member 234 and the second rotating member 235
The snap-fit relationship of positioning region 236 disappears, and causes the first rotating member 234 and the second rotating member 235 will be in the work of elastic-restoring force
Under, rotated to the direction of spring contraction.Second rotating member 235 will drive 232 rotation of buckle in rotation.When buckle 232
Position change after so that buckle 232 with rotational hook 231 be detached from coordinate.Due to rotational hook 231 with buckle 232
It needs to overcome certain elastic-restoring force when cooperation, so rotational hook 231 has the trend moved along preset direction, and this is pre-
Set direction is just that connecting rod 233 pushes the valve block of valve to the direction that move of direction for closing valve, thus when rotational hook 231 and
When buckle 232 is detached from, connecting rod 233 just can move that valve is driven to close along preset direction.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. the device that a kind of emergent control valve is closed, which is characterized in that including：
Installs case；
Drive link, the drive link is arranged in the installs case, and the drive link can move under external force；
Tripping mechanism, the tripping mechanism are arranged in the installs case, and the tripping mechanism includes rotational hook, buckle, work
Motivation structure, connecting rod and elastic component, the rotational hook are rotatably arranged in the installs case and are clasped with described,
The connecting rod is connect with the rotational hook, and with the trend moved along preset direction；
Valve, the valve are connect with the connecting rod；
The drive link can drive the movable device to move with mobile under the effect of external force, to make the snapping motion
And be detached from the rotational hook, the connecting rod can be moved along preset direction to described in driving when rotational hook is detached from and buckles
Valve is closed；
The device that the emergent control valve is closed further includes earthquake induction mechanism, and the earthquake induction mechanism is arranged in the peace
In vanning, the earthquake induction mechanism includes balance plate, drive link and the gravity block coordinated with the balance plate；
The movable device includes the first rotating member and the second rotating member；
First rotating member and second rotating member are spindle rotationally arranged in by spring in the installs case, and institute
Stating that the first rotating member and second rotating member be equipped with can mutually matched positioning region；
First rotating member includes the driving column for coordinating with the drive link, second rotating member include for institute
State buckle against support column.
2. the device that emergent control valve according to claim 1 is closed, it is characterised in that：
The earthquake induction mechanism includes first baffle and second baffle, and the drive link and the balance plate are arranged described
Between first baffle and the second baffle, the first baffle and the second baffle can relative to the installs case to by
Nearly balance plate direction rotation.
3. the device that emergent control valve according to claim 1 is closed, it is characterised in that：
Isolation board is equipped in the installs case, the isolation board is used to separate the earthquake induction mechanism and the tripping mechanism,
And the isolation board be equipped with for the drive link by through-hole.
4. the device that emergent control valve according to claim 1 is closed, it is characterised in that：
The movable device includes fixed plate, the fixed plate be equipped with respectively with the coordinated to column and the driving column
One groove and the second groove.
5. the device that emergent control valve according to claim 1 is closed, it is characterised in that：
Second rotating member include for the rotational hook against block.
6. the device that emergent control valve according to claim 1 is closed, it is characterised in that：
The device that the emergent control valve is closed further include by cylinder, the drive link setting described by cylinder, and
The drive link and it is described by between cylinder be equipped with return unit.
7. the device that emergent control valve according to claim 1 is closed, it is characterised in that：
The drive link close to one end of the movable device be equipped with for the movable device against Z-shaped plate；
Be equipped in the installs case for the drive link against bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246969.2U CN207864717U (en) | 2017-09-26 | 2017-09-26 | A kind of device that emergent control valve is closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246969.2U CN207864717U (en) | 2017-09-26 | 2017-09-26 | A kind of device that emergent control valve is closed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864717U true CN207864717U (en) | 2018-09-14 |
Family
ID=63474313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721246969.2U Expired - Fee Related CN207864717U (en) | 2017-09-26 | 2017-09-26 | A kind of device that emergent control valve is closed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864717U (en) |
-
2017
- 2017-09-26 CN CN201721246969.2U patent/CN207864717U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20180914 |