CN206159524U - Pneumatic logic control valve - Google Patents
Pneumatic logic control valve Download PDFInfo
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- CN206159524U CN206159524U CN201621167960.8U CN201621167960U CN206159524U CN 206159524 U CN206159524 U CN 206159524U CN 201621167960 U CN201621167960 U CN 201621167960U CN 206159524 U CN206159524 U CN 206159524U
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Abstract
The utility model discloses a pneumatic logic control valve contains: the pneumatic control valve body, guiding valve and base, the pneumatic control valve body sets up the one side at the guiding valve, the guiding valve sets up on the base, be equipped with air inlet, gas outlet and guide's air supply mouth on the base, the warp of the same kind of air supply the air inlet gets into in the guiding valve, another way subdividing behind guide's air supply mouth is two the tunnel, wherein communicates with each other with the first intracavity of first end cover all the way, and behind channel qi valve body and the pneumatic logic controller, the second intracavity of second end cover is led to in the reconnection to the other end in proper order, there is the pressure differential in first chamber and second chamber, and pressure is greater than second chamber and first chamber in first chamber and switches in being less than second chamber two types and then push away the movable slide valve core and remove the position of closing air inlet and gas outlet looks communicating pipe or open. This pneumatic logic control valve need not external equipment, need not the power supply and can sweep the mode that air mode conversion one -tenth pulse signal formula swept the air with the continuity, reaches the purpose that energy saving and emission reduction and improvement swept efficiency.
Description
Technical field
This utility model is related to a kind of control valve, more particularly to a kind of aerodynamics logic control valve.
Background technology
Currently, can carry out purging the occasion of operation for electronic equipment, container for drink, resin forming, machining etc.
Purging mode of operation also has many weak points, for example, carried out purging the mode of operation, purging effect with seriality purging air
Rate is low, and air consume is more；Although and can realize that the purging air of pulse signal form is made using solenoid valve control airflow direction
Industry mode, improves purging efficiency, however it is necessary that to solenoid valve, causing electricity to consume.This is accomplished by one and sets without the need for external
It is standby, seriality purging air can be transformed into the mode of operation of pulse signal formula purging air without the need for power supply, and suitable for electricity
Sub- equipment, container for drink, resin forming, machining etc. can carry out the aerodynamics logic control valve of the occasion for purging operation.
Utility model content
The purpose of this utility model is to provide a kind of aerodynamics logic control valve, by pneumatic control valve body, guiding valve, base one
Change design, realize without the need for external equipment, seriality purging air mode conversion can be purged into pulse signal formula without the need for power supply
The mode of air, reaches the purpose of saving air loss, energy-saving and emission-reduction and raising purging efficiency.
In order to achieve the above object, this utility model is achieved through the following technical solutions：
A kind of aerodynamics logic control valve, comprising：Pneumatic control valve body, guiding valve and base；The pneumatic control valve body is arranged
In the side of the guiding valve；The guiding valve is arranged on base；The guiding valve includes slide valve, is arranged on the of slide valve two ends
One chamber and the second chamber, and the sliding spool being arranged on inside the slide valve, the rear end and front end of sliding spool are located at respectively first
Chamber and the second chamber；The base is provided with air inlet, gas outlet and guide's port and communicates with guiding valve respectively.
Source of the gas is divided into two-way, and all the way air inlet described in Jing is entered in guiding valve；Another road is divided again after guide's port described in
For first guide's source of the gas and second guide's source of the gas two-way, wherein first guide's source of the gas is communicated with the first intracavity.
Second guide's source of the gas is successively Jing after air valve body that pneumatic control valve body is provided with aerodynamics logic control device, then is communicated to
There is pressure differential in second intracavity, first chamber with the second chamber；By aerodynamics logic control device between the first chamber and the second chamber
Pressure differential is adjusted, and pressure is switched in the first chamber is less than the second chamber two states more than the second chamber and the first chamber, enters
And sliding spool is promoted, sliding spool is moved in guiding valve body and the air inlet is connected closedown of pipeline or unlatching with gas outlet
Position.
Preferably, the air valve body is arranged on the front end of guiding valve；
The aerodynamics logic control device is arranged on air valve body, by aerodynamics logic control device by second guide's source of the gas from
Two intracavity are derived, and make the first cavity pressure more than the second cavity pressure, promote the sliding spool front end close with the end cap in the second chamber, are led to
Cross sliding spool the air inlet is connected closedown of pipeline with gas outlet.
Or, second guide's source of the gas is imported to by the second intracavity by aerodynamics logic control device, it is less than the first cavity pressure
Second cavity pressure, promotes the sliding spool rear end close with the chamber lid in the first chamber, by sliding spool by the air inlet and outlet
The connected unlatching of threading a pipe of mouth.
Preferably, the air valve body is provided with adjusting means；The adjusting means is provided with the first adjusting knob and second and adjusts
Knob, and first adjusting knob communicates respectively with the second adjusting knob with the gas pipeline in aerodynamics logic control device；It is logical
Cross the first adjusting knob of rotation and adjust the outlet time；Held one's breath the time by rotating the regulation of the second adjusting knob.
Preferably, the guiding valve includes the second end cap and the first end cap, and is separately fixed at the slide valve two ends；It is nested with
There is the second one-way piston envelope of the second cushion block, the second one-way piston envelope is arranged in the second end cap, the second one-way piston envelope
Front end and the second end cap constitute the second chamber, end in contact before the rear end of the second one-way piston envelope and the sliding spool.
The first one-way piston envelope of the first cushion block is equipped with, the first one-way piston envelope is arranged in the first end cap, the
The rear end of one one-way piston envelope constitutes the first chamber with the first end cap, terminates after the front end that the first one-way piston is sealed and the sliding spool
Touch.
Preferably, any one adjusting knob in first adjusting knob and the second adjusting knob, including adjusting tap,
The adjusting tap is fixedly connected with one end of adjusting rod；The nut seat being arranged on air valve body, the adjusting rod and nut seat spiral shell
Stricture of vagina connects；The locking nut being threadedly coupled with adjusting rod, the locking nut contacts with nut seat, the adjusting rod it is another
End contacts in air valve body inside and with the passage of aerodynamics logic control device inner gas tube.
Preferably, with the first adjusting knob clockwise or counterclockwise, the adjusting rod of the first adjusting knob is driven the
Downwards or move up in one passage, make second guide's source of the gas pass through the first passage to the second chamber imports when area reduction
Or increase.
Preferably, with the second adjusting knob clockwise or counterclockwise, the adjusting rod of the second adjusting knob is driven the
Downwards or move up in one passage, make second guide's source of the gas pass through area reduction when the second passage is derived from the second chamber
Or increase.
Preferably, the nut seat is sealed by O-ring with air valve body；The adjusting rod being arranged on inside air valve body
One end is equipped with successively O-ring, spring and rubber blanket.
Preferably, the interface surface that the guiding valve contacts with base is provided with rubber seal.
Preferably, on the air valve body and base in addition to air inlet, gas outlet and guide's port fabrication hole point
It is not provided with stifled ball or screw plug and is tightly connected with the fabrication hole.
This utility model has compared with prior art advantages below：
1st, this utility model due to using pneumatic control valve body, guiding valve, base integrated design make it have compact conformation,
Advantage neat and artistic, easy for installation.
2nd, this utility model has raising purging efficiency, energy-saving and emission-reduction, the advantage of environmental conservation.
3rd, this utility model can directly replace solenoid valve control purging air-flow, repair without the need for doing structure or program to system
Change, be easily installed, keep in repair.
4th, this utility model is convenient to adapt to different operating modes due to being provided with adjusting means scalable purging frequency and purging duration
Use.
5th, this utility model is durable in use, and test is up to 108It is secondary.
Description of the drawings
Fig. 1 is a kind of aerodynamics logic control valve overall structure diagram of this utility model；
Pneumatic control valve body backsights and left view structural representation of the Fig. 2 for a kind of aerodynamics logic control valve of this utility model
Figure；
Fig. 3 is a kind of adjusting means structural representation of aerodynamics logic control valve of this utility model；
Fig. 4 is a kind of guiding valve of aerodynamics logic control valve of this utility model and base cross-sectional view；
Fig. 5 is a kind of guiding valve of aerodynamics logic control valve of this utility model and base overlooking the structure diagram；
Fig. 6 is in the present embodiment, the pipeline structure of the guiding valve normal work of this utility model aerodynamics logic control valve shows
It is intended to；
Fig. 7 is the pipeline structure when guiding valve of this utility model aerodynamics logic control valve breaks down in the present embodiment
Schematic diagram.
Specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, this utility model is done and is further explained
State.
Front end described in the utility model is that regulation is defined by Fig. 1 with rear end, wherein, the left side of Fig. 1 is front end, and right side is
Rear end.
With reference to shown in Fig. 1 ~ Fig. 5, a kind of aerodynamics logic control valve, comprising：Pneumatic control valve body 1, guiding valve 2 and base 3；Institute
State the side that pneumatic control valve body 1 is arranged on the guiding valve 2；The guiding valve 2 is fixed by screws on base 3；The guiding valve 2
The interface surface contacted with base 3 is provided with rubber seal.
The guiding valve 2 includes slide valve 23, is arranged on first chamber and the second chamber at the two ends of slide valve 23, and is arranged on institute
State the sliding spool 24 inside slide valve 23；It also includes the second end cap 20 and the first end cap 26, and is separately fixed at the guiding valve
The two ends of body 23；The second one-way piston envelope 21 of the second cushion block 22 is equipped with, the second one-way piston envelope 21 is arranged on the second end
In lid 20, front end and second end cap 20 of the second one-way piston envelope 21 constitute the second chamber, the rear end of the second one-way piston envelope 21 with
End in contact before the sliding spool 24；It is equipped with the first one-way piston envelope 27 of the first cushion block 28, the first one-way piston envelope 27
It is arranged in the first end cap 26, rear end and first end cap 26 of the first one-way piston envelope 27 constitute the first chamber, the first one-way piston
End in contact after front end and the sliding spool 24 of envelope 27.
The base 3 is provided with air inlet 30, gas outlet 31 and guide's port 33 and communicates with guiding valve 2 respectively, institute
State guide's port 33 and be provided with snap joint 32.On the pneumatic control valve body 1 and base 3 except air inlet 30, gas outlet 31 with
And the fabrication hole beyond guide's port 33 is respectively arranged with stifled ball or screw plug and seals the fabrication hole.
The gas outlet 31 communicates with guiding valve 2；Source of the gas is divided into two-way, and all the way air inlet 30 described in Jing is entered in guiding valve 2；Separately
First guide's source of the gas and second guide's source of the gas two-way are further divided into after guide's port 33 described in all the way, wherein first guide's source of the gas
Communicate with the first intracavity, second guide's source of the gas air valve body 16 that successively Jing pneumatic controls valve body 1 is provided with and aerodynamics logic control device
After 15, then it is communicated to the second intracavity；There is pressure differential in first chamber with the second chamber, by 15 pairs of the first chambers of aerodynamics logic control device
It is adjusted with the pressure differential between the second chamber, makes pressure be less than two kinds of the second chamber more than the second chamber and the first chamber in the first chamber
Switch in state, and then promote sliding spool 24, sliding spool 24 is moved to the air inlet 30 and outlet in slide valve 23
Mouthfuls 31 positions for being connected closedown of pipeline or unlatching.
The air valve body 16 is fixed by screws in the front end of guiding valve 2；The aerodynamics logic control device 15 is arranged on air valve
On body 16, the aerodynamics logic control device 15 is arranged on air valve body 16, by aerodynamics logic control device 15 by the second first inducing QI
Source is derived from the second intracavity, makes the first cavity pressure more than the second cavity pressure, promotes the end of the front end of sliding spool 24 and the second chamber
Lid is close, and the air inlet 30 is connected closedown of pipeline with gas outlet 31 by sliding spool 24, and air-flow is held one's breath；Or, pass through
Second guide's source of the gas from the second intracavity is imported to, is made the first cavity pressure less than the second cavity pressure by aerodynamics logic control device 15, is pushed away
The dynamic rear end of the sliding spool 24 is close with the chamber lid in the first chamber, and the air inlet 30 is connected with gas outlet 31 by sliding spool 24
Thread a pipe unlatching, air-flow blowout.
The air valve body 16 is provided with adjusting means 14；The adjusting means 14 includes that the first adjusting knob 140 and second is adjusted
Section knob 141, the adjusting knob 141 of first adjusting knob 140 and second respectively with gas tube in aerodynamics logic control device 15
Road is communicated；The outlet time is adjusted by rotating the first adjusting knob 140；When being held one's breath by rotating the regulation of the second adjusting knob 141
Between.
Any one adjusting knob in the adjusting knob 141 of first adjusting knob 140 and second, including adjusting tap
1400, the adjusting tap 1400 is fixedly connected with one end of adjusting rod 1404；The nut seat 1402 being arranged on air valve body 16, institute
State adjusting rod 1404 to be threadedly coupled with nut seat 1402；The locking nut 1401 being threadedly coupled with adjusting rod 1404, the locking
Nut 1401 contacts with nut seat 1402, and the other end of the adjusting rod 1404 is in the inside of air valve body 16 and and pneumatic logic
The passage of the inner gas tube of controller 15 contacts.The nut seat 1402 is sealed by O-ring 1403 with air valve body 16；
One end of the adjusting rod 1404 being arranged on inside air valve body 16 is equipped with successively O-ring 1405, spring 1406 and rubber blanket
1407。
When turn clockwise the first adjusting knob 140 when, the adjusting rod 1404 of the first adjusting knob 140 is moved downward, front
The distance that end screws in the first following passage is longer, and air-flow is less by the area of the first passage, the pilot air for passing through
Speed is slower so that aerodynamics logic control device 15 is elongated from the time for importing to the second intracavity by second guide's source of the gas, reduces and slides
The rear end of valve element 24 and the first chamber near speed, and then make air inlet 30 be connected with gas outlet 31 thread a pipe unlatching time it is elongated；
Otherwise function when adjusting counterclockwise.
When turn clockwise the second adjusting knob 141 when, the adjusting rod of the second adjusting knob 141 is moved downward, this regulation
The distance that bar slowly screws in following second passage is longer, and air-flow is less by the area of the second passage, by restriction
Pilot air speed is slower so that aerodynamics logic control device 15 is in gets over second guide's source of the gas from the second intracavity derivation time
It is long, reduce the front end of sliding spool 24 with the second chamber near speed, and then make air inlet 30 be connected with gas outlet 31 closedown of pipeline
Time is longer；Otherwise function when adjusting counterclockwise.
As shown in fig. 6, in the present embodiment, the enterprising QI KOU 30 of aerodynamics logic control valve base 3, gas outlet 31 pass through respectively
Transit joint connects into a set of pipeline with trachea, stop valve 1, and guide's port 33 is connected to air inlet by snap joint and trachea
On the transit joint of mouth so that air inlet 30 and guide's port 33 are same source of the gas.Gas outlet 31 is by transit joint and gas
Pipe Jing stop valves 2 connect into a set of pipeline with air inlet 30.
When deployed, the air inlet of pipeline picks up source, and gas outlet connects the devices such as nozzle, while stop valve 1 is opened, stop valve
2 close, and because the cavity area of the second end cap 20 is more than the chamber of the first end cap 28, air pressure is identical, the second cushion block 21 of the intracavity of the second end cap 20
The power that the power being subject to is subject to more than the first cushion block of intracavity of the first end cap 28, now sliding spool 24 under the promotion of the second cushion block 21 to
A ends are moved, and air inlet 30 is communicated with gas outlet 31, gas blow-out；Next aerodynamics logic control device 15 opens the second end of release
The cavity pressure of lid 20, pressure is constant in the chamber of the first end cap 28, so that the first cushion block 27 promotes sliding spool 24 to B end motions, enters
QI KOU 30 is not communicated with gas outlet 31, and air-flow is closed；Then aerodynamics logic control device 15 is closed, and re-establishes B end pressures, and second
Cushion block 21 promotes sliding spool 24 to the movement of A ends, air inlet 30 and the UNICOM of gas outlet 31, air-flow blowout.In aerodynamics logic control device
15 periodicity set up pressure, and under release pressure, the purging that the continuous flow of air inlet 30 is transformed into pulse signal formula by guiding valve is empty
Gas, improves purging efficiency, reduces the losing quantity of air.
As shown in fig. 7, when aerodynamics logic control valve breaks down, stop valve 1 can be closed, stop valve 2, this seasonal epidemic pathogens are opened
Flow from the air inlet of pipeline and enter, skip aerodynamics logic control valve, directly blow out from the gas outlet of pipeline, enter Line Continuity air
Purging, so as to not interfere with production.
In the implementation case, aerodynamics logic control valve is arranged in pipeline by transit joint, makes compact conformation, succinctly,
It is easily installed.And by pneumatic control valve body 1, guiding valve 2, base 3 integrated design so as to automatically control with power supply is not required to
The function of sliding valve movement.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as to restriction of the present utility model.After those skilled in the art have read the above, for
Various modifications and substitutions of the present utility model all will be apparent.Therefore, protection domain of the present utility model should be by appended
Claim limiting.
Claims (10)
1. a kind of aerodynamics logic control valve, it is characterised in that include：Pneumatic control valve body（1）, guiding valve（2）With base（3）；Institute
State pneumatic control valve body（1）It is arranged on the guiding valve（2）Side；The guiding valve（2）It is arranged on base（3）On；The guiding valve
（2）Including slide valve（23）, it is arranged on slide valve（23）First chamber at two ends and the second chamber, and it is arranged on the slide valve
（23）Internal sliding spool（24）, sliding spool（24）Rear end and front end be located at the first chamber and the second chamber respectively；The base（3）
It is provided with air inlet（30）, gas outlet（31）And guide's port（33）Respectively with guiding valve（2）Communicate；
Source of the gas is divided into two-way, all the way air inlet described in Jing（30）Into guiding valve（2）It is interior；Guide's port described in another road Jing
（33）After be further divided into first guide's source of the gas and second guide's source of the gas two-way, wherein first guide's source of the gas is communicated with the first intracavity；
Second guide's source of the gas Jing pneumatic controls valve body successively（1）The air valve body being provided with（16）With aerodynamics logic control device（15）Afterwards,
The second intracavity is communicated to again；There is pressure differential in first chamber with the second chamber, by aerodynamics logic control device（15）To the first chamber with
Pressure differential between second chamber is adjusted, and makes pressure be less than two kinds of the second chamber shape more than the second chamber and the first chamber in the first chamber
Switch in state, and then promote sliding spool（24）, make sliding spool（24）In slide valve（23）Inside move to the air inlet（30）
With gas outlet（31）Be connected the position of closedown of pipeline or unlatching.
2. aerodynamics logic control valve as claimed in claim 1, it is characterised in that the air valve body（16）It is arranged on guiding valve（2）
Front end；
The aerodynamics logic control device（15）It is arranged on air valve body（16）On, by aerodynamics logic control device（15）By the second guide
Source of the gas is derived from the second intracavity, makes the first cavity pressure more than the second cavity pressure, promotes the sliding spool（24）Front end and the second chamber
End cap it is close, by sliding spool（24）By the air inlet（30）With gas outlet（31）Be connected closedown of pipeline；
Or, by aerodynamics logic control device（15）Second guide's source of the gas is imported to into the second intracavity, the first cavity pressure is less than
Second cavity pressure, promotes the sliding spool（24）Rear end is close with the chamber lid in the first chamber, by sliding spool（24）By the air inlet
Mouthful（30）With gas outlet（31）Be connected unlatching of threading a pipe.
3. aerodynamics logic control valve as claimed in claim 2, it is characterised in that the air valve body（16）It is provided with adjusting means
（14）；The adjusting means（14）It is provided with the first adjusting knob（140）With the second adjusting knob（141）, and first regulation
Knob（140）With the second adjusting knob（141）Respectively with aerodynamics logic control device（15）Interior gas pipeline is communicated；By rotation
First adjusting knob（140）Adjust the outlet time；By rotating the second adjusting knob（141）Regulation is held one's breath the time.
4. aerodynamics logic control valve as claimed in claim 1, it is characterised in that the guiding valve（2）Including the second end cap（20）
With the first end cap（26）, and it is separately fixed at the slide valve（23）Two ends；It is equipped with the second cushion block（22）It is second unidirectional living
Plug envelope（21）, the second one-way piston envelope（21）It is arranged on the second end cap（20）It is interior, the second one-way piston envelope（21）Front end
With the second end cap（20）Constitute the second chamber, the second one-way piston envelope（21）Rear end and the sliding spool（24）Front end in contact；
It is equipped with the first cushion block（28）The first one-way piston envelope（27）, the first one-way piston envelope（27）It is arranged on first end
Lid（26）It is interior, the first one-way piston envelope（27）Rear end and the first end cap（26）Constitute the first chamber, the first one-way piston envelope（27）
Front end and the sliding spool（24）End in contact afterwards.
5. aerodynamics logic control valve as claimed in claim 3, it is characterised in that first adjusting knob（140）With second
Adjusting knob（141）In any one adjusting knob, including adjusting tap（1400）, the adjusting tap（1400）With adjusting rod
（1404）One end be fixedly connected；It is arranged on air valve body（16）On nut seat（1402）, the adjusting rod（1404）With nut
Seat（1402）Threaded connection；With adjusting rod（1404）The locking nut of threaded connection（1401）, the locking nut（1401）With
Nut seat（1402）Contact, the adjusting rod（1404）The other end be in air valve body（16）Internal and and aerodynamics logic control
Device（15）The passage of inner gas tube contacts.
6. aerodynamics logic control valve as claimed in claim 5, it is characterised in that adjust with clockwise or counterclockwise first
Knob（140）, drive the first adjusting knob（140）Adjusting rod（1404）Downwards or move up in the first passage, make
Second guide's source of the gas by the first passage to the second chamber import when area be decreased or increased.
7. the aerodynamics logic control valve as described in claim 3 or 6, it is characterised in that with clockwise or counterclockwise second
Adjusting knob（141）, drive the second adjusting knob（141）Adjusting rod downwards or move up in the second passage, make the
Area when two guide's sources of the gas are derived by the second passage from the second chamber is decreased or increased.
8. aerodynamics logic control valve as claimed in claim 5, it is characterised in that the nut seat（1402）By O-ring
（1403）With air valve body（16）Sealing；It is described to be arranged on air valve body（16）Internal adjusting rod（1404）One end be equipped with successively
O-ring（1405）, spring（1406）With rubber blanket（1407）.
9. aerodynamics logic control valve as claimed in claim 1, it is characterised in that the guiding valve（2）With base（3）Contact
Interface surface is provided with rubber seal.
10. aerodynamics logic control valve as claimed in claim 1, it is characterised in that the air valve body（16）With base（3）On remove
Air inlet（30）, gas outlet（31）And guide's port（33）Fabrication hole in addition be respectively arranged with ball stifled or screw plug and with institute
State fabrication hole to be tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167960.8U CN206159524U (en) | 2016-11-02 | 2016-11-02 | Pneumatic logic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167960.8U CN206159524U (en) | 2016-11-02 | 2016-11-02 | Pneumatic logic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159524U true CN206159524U (en) | 2017-05-10 |
Family
ID=58655695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621167960.8U Active CN206159524U (en) | 2016-11-02 | 2016-11-02 | Pneumatic logic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159524U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404604A (en) * | 2018-11-27 | 2019-03-01 | 江苏核电有限公司 | A kind of side valve type air operated reversing valve diagnostic device |
| CN111298720A (en) * | 2020-03-31 | 2020-06-19 | 张旭 | Integrated equipment for industrially preparing new material in large quantity |
| CN117967860A (en) * | 2024-03-28 | 2024-05-03 | 泉州日美卫浴股份公司 | Multi-stage constant-flow faucet with high sealing performance |
-
2016
- 2016-11-02 CN CN201621167960.8U patent/CN206159524U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404604A (en) * | 2018-11-27 | 2019-03-01 | 江苏核电有限公司 | A kind of side valve type air operated reversing valve diagnostic device |
| CN109404604B (en) * | 2018-11-27 | 2023-10-20 | 江苏核电有限公司 | Slide valve type pneumatic reversing valve diagnosis device |
| CN111298720A (en) * | 2020-03-31 | 2020-06-19 | 张旭 | Integrated equipment for industrially preparing new material in large quantity |
| CN117967860A (en) * | 2024-03-28 | 2024-05-03 | 泉州日美卫浴股份公司 | Multi-stage constant-flow faucet with high sealing performance |
| CN117967860B (en) * | 2024-03-28 | 2024-05-31 | 泉州日美卫浴股份公司 | Multi-stage constant-flow faucet with high sealing performance |
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