CN108662166A - It is a kind of can quickly either on or off shut-off valve - Google Patents
It is a kind of can quickly either on or off shut-off valve Download PDFInfo
- Publication number
- CN108662166A CN108662166A CN201810773062.4A CN201810773062A CN108662166A CN 108662166 A CN108662166 A CN 108662166A CN 201810773062 A CN201810773062 A CN 201810773062A CN 108662166 A CN108662166 A CN 108662166A
- Authority
- CN
- China
- Prior art keywords
- valve
- sliding shoe
- groove
- flap
- shut
- 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.)
- Withdrawn
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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
- 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
- F16K1/42—Valve seats
-
- 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
-
- 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention propose it is a kind of can quickly either on or off shut-off valve, including valve body, the valve inner is equipped with valve seat and flap, and flap is located at the surface of valve seat, the flap upper end is equipped with valve clack cover, the flap upper end is fixedly connected with valve rod, the valve body upper end is also welded with valve deck, installation cavity is offered inside the valve deck, roof, which runs through, in the installation cavity body slidably connects the first sliding shoe and the second sliding shoe, first sliding shoe and the second sliding shoe upper end run through valve deck and extend outwardly, the installation inside cavity also slidably connects limiting plate, the limit plate surface offers the first groove and the second groove.The opening and closing that the present invention controls flap is more laborsaving quick, and compact-sized, transmission speed faster, and reduces the quantity of parts, can be cost-effective；The problem of valve inner abrasion causes leakproofness to reduce is avoided simultaneously, and the service life is longer.
Description
Technical field
The present invention relates to shut-off valve technical fields, and in particular to it is a kind of can quickly either on or off shut-off valve.
Background technology
Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, is a kind of one of most popular valve.Shut-off valve
Very popular reason is since frictional force is small between sealing surface during opening and closing, and relatively durable, Lift is little, and manufacture is held
Easily, easy to maintenance, it is applicable not only to mesolow, and be suitable for high pressure.The closure principle of shut-off valve is, by valve rod pressure,
So that valve clack sealing surface is fitted closely with sealing surface of seat, prevents flow of media.
Existing shut-off valve opening and closing is typically to make flap slowly closer or far from valve seat by rotating handwheel, and flap, which is opened, to close
Close that process is extremely slow, due to the resistance of fluid media (medium), rotation handwheel usually requires to expend compared with great strength, and passes through rotary opening closing
Valve body rear valve body inter deterioration of long duration is larger, and the leakproofness of valve body can also be reduced, and service life is influenced.
Invention content
Based on the above issues, present invention aims at a kind of long lifespan of offer, good seal performance and opening and closing operations are laborsaving fast
Prompt shut-off valve.
In view of the above problems, providing following technical solution：It is a kind of can quick either on or off shut-off valve, including valve body,
The valve inner is equipped with valve seat and flap, and flap is located at the surface of valve seat, and the flap upper end is equipped with valve clack cover, described
Flap upper end is fixedly connected with valve rod, and the valve body upper end is also welded with valve deck, and installation cavity, institute are offered inside the valve deck
Roof in installation cavity body is stated to slide through the first sliding shoe and the second sliding shoe, first sliding shoe and second is slidably connected
Block upper end runs through valve deck and extends outwardly, and the installation inside cavity also slidably connects limiting plate, the limit plate surface
Offer the first groove and the second groove；
First groove is connected to composition with L-shaped groove using the first dovetail groove of setting of standing upside down, and the first dovetail groove is located at
Plate surface is limited, second groove is connected to composition, and the second dovetail groove with rectangular channel using the second dovetail groove of setting of standing upside down
Positioned at limit plate surface, limit is welded on the first sliding shoe and the second sliding shoe side wall of the installation inside cavity
Block, two limited blocks are slidably connected with the first groove of limiting plate and the second groove respectively, first sliding shoe and
Two sliding shoe bottoms are corresponding respectively to be fixedly connected with the first fixed link and the second fixed link, and first fixed link is slided far from first
One end of motion block extends to valve inner through valve deck and is fixedly connected with valve rod upper end, and valve deck bottom is further opened with cooperation valve
The accommodating groove that valve uses；
The installation cavity inner wall is further opened with the pressing groove that uses of the second fixed link of cooperation, first sliding shoe and the
Two sliding shoe bottoms are installed with the first spring with installation cavity bottom, and the first spring is set in the first fixed link and the
The outside of two fixed links is welded with the first fixed block on the limiting plate, the second fixation is welded on the installation cavity inner wall
Block, rectangular through-hole is further opened on the limiting plate, and second fixed block is located inside rectangular through-hole and is slided with rectangular through-hole
Dynamic connection, second spring is fixedly connected between first fixed block and the second fixed block.
In above structure, state as shown in Figure 1 when valve is opened, fluid unimpeded can be flowed, be closed with valve seat when needing flap
When conjunction, the first sliding shoe is pressed, makes the first fixed link that valve rod and flap be pushed to glide, first slides during the first sliding shoe glides
Limited block on motion block pushes limiting plate to slide to the left along the first trapezoidal groove sidewall of the first groove, when to slide to first recessed for limited block
When the L-shaped groove bottom of slot, limiting plate is pulled back by second spring, due to the upward return action of the first spring outside the first fixed link
Force effect, can make the limited block and the first groove on the first sliding shoe side wall L-shaped groove part support set, at this time flap just with
Valve seat contact fitting, reaches state shown in Fig. 2；Conversely, when needing that flap is made to lift off a seat, the second sliding shoe is pressed, makes the
Limited block on two sliding shoes is slided along the second trapezoidal groove groove wall of the second groove pushes limiting plate to the left, and limiting plate is slided to the left
The dynamic limited block that can make on the first sliding shoe is detached from supporting for the L-shaped groove of the first groove and sets, and the return action power of the first spring can be to
On push the first sliding shoe, make the first sliding shoe band ovable valve stem and flap rise, you can open valve, make valve return Fig. 1 shapes
State.
The present invention is further arranged to, and one end that first sliding shoe and the second sliding shoe are located at outside valve deck is welded
There are briquetting, the briquetting surface to offer pressing groove.
Using the above structure, it is convenient for the first sliding shoe of pressing and the second sliding shoe, opening and closing valve more laborsaving.
The present invention is further arranged to, and the valve deck upper end offers the first sliding shoe of cooperation and the second sliding shoe uses
Sliding eye, and butter is coated with inside sliding eye.
Using the above structure, reduce resistance to sliding when the first sliding shoe of pressing and the second sliding shoe, further reach province
The effect of power.
The present invention is further arranged to, and reinforcing rib is welded between the both ends lateral wall and valve body of the valve body.
Using the above structure, make the overall structure of valve body more secured, prevent stress concentration valve body from crack conditions occur.
The present invention is further arranged to, and the sliding rail that cooperation limiting plate uses is offered on the installation cavity inner wall.
Using the above structure, limiting plate can be made to horizontally slip more fast and stable, reduce frictional resistance, pressing first is made to slide
The transmission effect of motion block and the second sliding shoe is more preferable, and operation is more laborsaving.
The present invention is further arranged to, and first spring is all made of resetting spring with second spring.
Using the above structure, the reset response power of resetting spring is more stablized lasting, and reset effect is more accurate, makes the
Two springs are more quickly accurate to the pulling reset effect of limiting plate.
The beneficial effects of the present invention are：
1, the first sliding shoe and the second sliding shoe are pressed setting come substitute by way of traditional shut-off valve rotates handwheel come
The opening and closing of flap is controlled, more laborsaving quick, structure is compacter, and transmission speed faster, and reduces the quantity of parts, section
About cost；
2, flap is driven by the first sliding shoe and the second sliding shoe that sliding is arranged, traditional operation can be avoided
The middle rotation kind of drive, which forms valve inner screw thread, wears, and the problem of reduction so as to cause leakproofness, the service life is longer.
Description of the drawings
Fig. 1 is the structural schematic diagram of flap opening state of the present invention；
Fig. 2 is the structural schematic diagram of flap closed state of the present invention；
Fig. 3 is the structural schematic diagram that plate part is limited in the present invention.
Figure label meaning：1- valve bodies；2- valve seats；3- flaps；4- valve rods；5- valve decks；6- installs cavity；7- first is slided
Block；8- the second sliding shoes；9- limiting plates；The first grooves of 10-；The second grooves of 11-；12- limited blocks；The first fixed links of 13-；14-
Second fixed link；15- pressing grooves；The first springs of 16-；The second fixed blocks of 17-；The first fixed blocks of 18-；19- rectangular through-holes；20-
Second spring；21- briquettings；22- reinforcing ribs.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
It is as shown in Figure 1 to Figure 3 it is a kind of can quick either on or off shut-off valve, including valve body 1, valve body 1 be internally provided with valve
Seat 2 and flap 3, and flap 3 is located at the surface of valve seat 2,3 upper end of flap is equipped with valve clack cover, and 3 upper end of flap is fixedly connected with valve
Bar 4,1 upper end of valve body are also welded with valve deck 5, and installation cavity 6 is offered inside valve deck 5, and installation 6 inner roof wall of cavity connects through sliding
It is connected to the first sliding shoe 7 and the second sliding shoe 8, the first sliding shoe 7 and 8 upper end of the second sliding shoe run through valve deck 5 and to extensions
It stretches, installs and also slidably connect limiting plate 9 inside cavity 6,9 surface of limiting plate offers the first groove 10 and the second groove 11；
First groove 10 is connected to composition with L-shaped groove using the first dovetail groove of setting of standing upside down, and the first dovetail groove is located at limit
Position 9 surface of plate, the second groove 11 is connected to composition with rectangular channel using the second dovetail groove of setting of standing upside down, and the second dovetail groove is located at
9 surface of limiting plate is welded with limited block on 8 side wall of the first sliding shoe 7 and the second sliding shoe inside installation cavity 6
12, two limited blocks 12 are slidably connected with the first groove 10 of limiting plate 9 and the second groove 11 respectively, the first sliding shoe 7 and
Two sliding shoes, 8 bottom is corresponding respectively to be fixedly connected with the first fixed link 13 and the second fixed link 14, and the first fixed link 13 is far from the
One end of one sliding shoe 7 extends to 1 inside of valve body through valve deck 5 and is fixedly connected with 4 upper end of valve rod, and 5 bottom of valve deck is also opened
The accommodating groove used equipped with cooperation flap 3；
Installation 6 inner wall of cavity is further opened with the pressing groove 15 that the second fixed link 14 of cooperation uses, the first sliding shoe 7 and second
8 bottom of sliding shoe is installed with the first spring 16 with 6 bottom of installation cavity, and the first spring 16 is set in the first fixed link
13 and second fixed link 14 outside, the first fixed block 18 is welded on limiting plate 9, installs and is welded with second on 6 inner wall of cavity
Fixed block 17, is further opened with rectangular through-hole 19 on limiting plate 9, and the second fixed block 17 is located at 19 inside of rectangular through-hole and logical with rectangle
Hole 19 is slidably connected, and second spring 20 is fixedly connected between the first fixed block 18 and the second fixed block 17.
In above structure, state as shown in Figure 1 when valve is opened, fluid unimpeded can flow, when needing flap 3 and valve seat 2
When closure, the first sliding shoe 7 is pressed, makes the first fixed link 13 that valve rod 4 and flap 3 be pushed to glide, 7 downslide process of the first sliding shoe
In limited block 12 on the first sliding shoe 7 push limiting plate 9 to slide to the left along the first trapezoidal groove sidewall of the first groove 10, work as limit
Position block 12 when sliding to the L-shaped groove bottom of the first groove 10, by second spring 20 pulled back by limiting plate 9, due to the first fixed link 13 outside
The first spring 16 upward return action force effect in portion's can make the limited block 12 on 7 side wall of the first sliding shoe and the first groove 10
L-shaped groove part support set, flap 3 contacts fitting with valve seat 2 just at this time, reaches state shown in Fig. 2；Conversely, when needing to make
Flap 3 lift off a seat 2 when, press the second sliding shoe 8, make the limited block 12 on the second sliding shoe 8 along the second of the second groove 11
Trapezoidal groove groove wall sliding pushes limiting plate 9 to the left, and limiting plate 9 slides to the left can make the limited block 12 on the first sliding shoe 7 de-
Supporting for L-shaped groove from the first groove 10 sets, and the return action power of the first spring 16 can push the first sliding shoe 7 upwards, make first
Sliding shoe 7 rises with ovable valve stem 4 and flap 3, you can opens valve, makes valve return Fig. 1 states.
The present invention is further arranged to, and one end that the first sliding shoe 7 and the second sliding shoe 8 are located at outside valve deck 5 is welded
There are briquetting 21,21 surface of briquetting to offer pressing groove.
Using the above structure, it is convenient for the first sliding shoe 7 of pressing and the second sliding shoe 8, opening and closing valve more laborsaving.
The present invention is further arranged to, and 5 upper end of valve deck offers first sliding shoe 7 of cooperation and the second sliding shoe 8 uses
Sliding eye, and butter is coated with inside sliding eye.
Using the above structure, reduce resistance to sliding when the first sliding shoe 7 of pressing and the second sliding shoe 8, further reach
Labour-saving effect.
The present invention is further arranged to, and reinforcing rib 22 is welded between the both ends lateral wall and valve body 1 of valve body 1.
Using the above structure, make the overall structure of valve body 1 more secured, prevent stress concentration valve body 1 from crack conditions occur.
The present invention is further arranged to, and is installed and is offered the sliding rail that cooperation limiting plate 9 uses on 6 inner wall of cavity.
Using the above structure, limiting plate 9 can be made to horizontally slip more fast and stable, reduce frictional resistance, make pressing first
The transmission effect of sliding shoe 7 and the second sliding shoe 8 is more preferable, and operation is more laborsaving.
The present invention is further arranged to, and the first spring 16 is all made of resetting spring with second spring 20.
Using the above structure, the reset response power of resetting spring is more stablized lasting, and reset effect is more accurate, makes the
Two springs 20 are more quickly accurate to the pulling reset effect of limiting plate 9.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Although valve body 1, valve seat 2, flap 3, valve rod 4, valve deck 5, installation cavity 6, first is used more herein to slide
Block 7, the second sliding shoe 8, limiting plate 9, the first groove 10, the second groove 11, limited block 12, the first fixed link 13, second are fixed
Bar 14, pressing groove 15, the first spring 16, the second fixed block 17, the first fixed block 18, rectangular through-hole 19, second spring 20, pressing
The terms such as block 21, reinforcing rib 22, but it does not preclude the possibility of using other terms.The use of these items is only for more square
Just the essence of the present invention is described and explained；Being construed as any one of the additional limitations all is disagreed with spirit of that invention
The back of the body.
Claims (8)
1. it is a kind of can quick either on or off shut-off valve, including valve body, the valve inner is equipped with valve seat and flap, and flap position
In the surface of valve seat, the flap upper end is equipped with valve clack cover, and the flap upper end is fixedly connected with valve rod, it is characterised in that：
The valve body upper end is also welded with valve deck, and installation cavity is offered inside the valve deck, and roof is through cunning in the installation cavity body
Dynamic to be connected with the first sliding shoe and the second sliding shoe, valve deck and outside is run through in first sliding shoe and the second sliding shoe upper end
Extend, the installation inside cavity also slidably connects limiting plate, and the limit plate surface offers the first groove and second recessed
Slot is welded with limited block, described in two on the first sliding shoe and the second sliding shoe side wall of the installation inside cavity
Limited block is slidably connected with the first groove of limiting plate and the second groove respectively, first sliding shoe and the second sliding shoe bottom
Correspondence is fixedly connected with the first fixed link and the second fixed link respectively, and the described one end of first fixed link far from the first sliding shoe is passed through
It wears valve deck to extend to valve inner and be fixedly connected with valve rod upper end, and valve deck bottom is further opened with the storage that cooperation flap uses
Slot.
2. it is according to claim 1 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：In the installation cavity body
Wall is further opened with the pressing groove that uses of the second fixed link of cooperation, and first sliding shoe and the second sliding shoe bottom are and installation cavity
Body bottom is installed with the first spring, and the first spring is set in the outside of the first fixed link and the second fixed link, the limit
It is welded with the first fixed block on the plate of position, the second fixed block is welded on the installation cavity inner wall, is also opened up on the limiting plate
There are rectangular through-hole, second fixed block to be located inside rectangular through-hole and be slidably connected with rectangular through-hole, first fixed block
And second be fixedly connected with second spring between fixed block.
3. it is according to claim 1 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：First groove is adopted
Composition is connected to L-shaped groove with the first dovetail groove of setting of standing upside down, and the first dovetail groove is located at limit plate surface, second groove
Composition is connected to rectangular channel using the second dovetail groove of setting of standing upside down, and the second dovetail groove is located at limit plate surface.
4. it is according to claim 1 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：First sliding shoe
It is located at one end outside valve deck with the second sliding shoe and is welded with briquetting, the briquetting surface offers pressing groove.
5. it is according to claim 1 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：It opens the valve deck upper end
Equipped with the sliding eye that the first sliding shoe of cooperation and the second sliding shoe use, and butter is coated with inside sliding eye.
6. it is according to claim 1 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：The both ends of the valve body
Reinforcing rib is welded between lateral wall and valve body.
7. it is according to claim 1 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：In the installation cavity body
The sliding rail that cooperation limiting plate uses is offered on wall.
8. it is according to claim 2 it is a kind of can quickly either on or off shut-off valve, it is characterised in that：First spring with
Second spring is all made of resetting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773062.4A CN108662166A (en) | 2018-07-14 | 2018-07-14 | It is a kind of can quickly either on or off shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773062.4A CN108662166A (en) | 2018-07-14 | 2018-07-14 | It is a kind of can quickly either on or off shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108662166A true CN108662166A (en) | 2018-10-16 |
Family
ID=63789080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810773062.4A Withdrawn CN108662166A (en) | 2018-07-14 | 2018-07-14 | It is a kind of can quickly either on or off shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988492A (en) * | 2019-12-25 | 2020-04-10 | 青岛兴仪电子设备有限责任公司 | Quick testing arrangement of material electromagnetic parameter suitable for high temperature environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1485628A (en) * | 1974-12-04 | 1977-09-14 | Iv Pressure Controllers Ltd | Valve assemblies |
| US5478049A (en) * | 1995-03-20 | 1995-12-26 | Lescoe; Robert J. | Quick drain valve |
| CN107061764A (en) * | 2017-06-13 | 2017-08-18 | 北京艾迪西暖通科技有限公司 | Moment shut-off valve |
| CN107939993A (en) * | 2017-12-28 | 2018-04-20 | 江苏盐高阀门制造有限公司 | A kind of anticlogging shut-off valve |
| CN207393971U (en) * | 2017-10-10 | 2018-05-22 | 天津鹏安数讯消防设备工程有限公司 | A kind of safe fire valve easy to use |
-
2018
- 2018-07-14 CN CN201810773062.4A patent/CN108662166A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1485628A (en) * | 1974-12-04 | 1977-09-14 | Iv Pressure Controllers Ltd | Valve assemblies |
| US5478049A (en) * | 1995-03-20 | 1995-12-26 | Lescoe; Robert J. | Quick drain valve |
| CN107061764A (en) * | 2017-06-13 | 2017-08-18 | 北京艾迪西暖通科技有限公司 | Moment shut-off valve |
| CN207393971U (en) * | 2017-10-10 | 2018-05-22 | 天津鹏安数讯消防设备工程有限公司 | A kind of safe fire valve easy to use |
| CN107939993A (en) * | 2017-12-28 | 2018-04-20 | 江苏盐高阀门制造有限公司 | A kind of anticlogging shut-off valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988492A (en) * | 2019-12-25 | 2020-04-10 | 青岛兴仪电子设备有限责任公司 | Quick testing arrangement of material electromagnetic parameter suitable for high temperature environment |
| CN110988492B (en) * | 2019-12-25 | 2023-02-28 | 青岛兴仪电子设备有限责任公司 | Quick testing arrangement of material electromagnetic parameter suitable for under high temperature environment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181016 |
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| WW01 | Invention patent application withdrawn after publication |