CN111395485A - Intelligent control interface valve for sewage collection and variable control method - Google Patents
Intelligent control interface valve for sewage collection and variable control method Download PDFInfo
- Publication number
- CN111395485A CN111395485A CN202010216232.6A CN202010216232A CN111395485A CN 111395485 A CN111395485 A CN 111395485A CN 202010216232 A CN202010216232 A CN 202010216232A CN 111395485 A CN111395485 A CN 111395485A
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- shell
- piston
- ejector
- regulator
- interface valve
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
Abstract
The invention discloses an intelligent control interface valve for sewage collection, which comprises an interface valve main body, wherein the left end and the right end of the interface valve main body are respectively connected with a closestool and an ejector shell, and the right end of a spray head at the right end of the ejector shell is connected with a vacuum sewage storage tank; the lower part of the left end of the ejector shell is externally connected with a compressed air source; the middle part of the left end of a piston sleeve in the ejector shell is connected with a vacuum dirt storage tank, the lower part of the left end of the piston sleeve is connected with a voltage stabilizer, the lower end of the voltage stabilizer is connected with a lower regulator shell, the upper end of the lower regulator shell is matched with an upper regulator shell, and the upper end of the upper regulator shell is connected with a vacuum pump; the middle part of the left end of the lower shell of the regulator is connected with a vacuum sewage storage tank. The invention also provides a variable control method of the sewage collection intelligent control interface valve, which comprises the following steps: the method comprises the following steps: constructing an interface valve system; step two: the ejector and the regulator are used for pressure regulation. The invention can use the feedback of the regulator to the negative pressure signal to adjust the negative pressure value of the ejector, thus solving the problem of insufficient pressure.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of sewage treatment, in particular to the technical field of an intelligent interface valve for sewage collection and a variable control method.
[ background of the invention ]
In the existing sewage collecting system, vacuum suction is often needed as the sewage collecting force. Vacuum valves are used to control the operation of the toilet, as is known in the art, to provide vacuum pumping. In particular, in the excrement and sewage collecting system formed by using the interface valve, when the time interval between two successive pumping operations is not long, there is a problem that the negative pressure is excessively small at the time of the second start. Insufficient vacuum during secondary starting can cause that follow-up linkage is slower, thereby influencing pollution discharge. Therefore, a device for supplying pressure in a relay property when the negative pressure is excessively small is required to solve the above problems.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides an intelligent interface valve for sewage collection and a variable control method, which can utilize a regulator to adjust the negative pressure value of a jet device through the feedback of a negative pressure signal so as to ensure that the interface valve has enough negative pressure, thereby solving the problem of insufficient pressure during continuous use.
In order to achieve the purpose, the invention provides an intelligent control interface valve for sewage collection, which comprises an interface valve main body, wherein the left end and the right end of the interface valve main body are respectively connected with a closestool and an ejector shell through pipelines, a piston sleeve is transversely arranged in a cavity in the ejector shell, a first piston is arranged in the piston sleeve, the first piston is matched with a jet nozzle after penetrating through a baffle cover, the right end of the jet nozzle is arranged in a spray head, the spray head is fixed at the right end of the ejector shell through a bolt, and the right end of the spray head is connected with a vacuum sewage storage tank through a pipeline; the outer side of the right end of the ejector shell is provided with a pipe head which is connected with the end face of the right end of the ejector shell through a reed; the lower part of the left end of the ejector shell is externally connected with a compressed air source through a pipeline; the middle part of the left end of the piston sleeve is connected with a vacuum dirt storage tank through a pipeline, the lower part of the left end of the piston sleeve is connected with a pressure stabilizer through a pipeline, the lower end of the pressure stabilizer is connected with a lower shell of the regulator through a pipeline, a second piston is arranged in the middle of the lower shell of the regulator, an elastic sheet is matched with the outer part of the upper end of the second piston and fixed on the lower shell of the regulator, the upper end of the lower shell of the regulator is matched with an upper shell of the regulator, and the upper end of the upper shell of; the middle part of the left end of the lower shell of the regulator is connected with a vacuum sewage storage tank through a pipeline.
Preferably, an inner flow passage is arranged in the ejector shell, and a piston sleeve, a first piston, a baffle cover and an ejection nozzle are accommodated in the inner flow passage; 2 airflow channels are transversely arranged in the ejector shell, and the airflow channels are connected with a vacuum dirt storage tank or a pressure stabilizer through pipelines; square bulges are arranged on the wall surface of the inner cavity of the ejector shell and the wall surface of the inner cavity of the spray head, and the square bulges are matched with the blocking cover and the jet nozzle; an outer flow channel is arranged in the ejector shell, and the left end of the outer flow channel is externally connected with a compressed air source through a pipeline.
Preferably, a cavity is formed in the right side of the piston sleeve, a first piston is arranged in the cavity on the right side of the piston sleeve, the section of the first piston is of a T-shaped structure, a first circular through hole is transversely formed in the middle of the left side of the piston sleeve, the left side of the first circular through hole is communicated with an air flow channel formed in the ejector shell, a first L-shaped hole is transversely formed below the piston sleeve, the left side of a first L-shaped hole is communicated with the air flow channel formed in the ejector shell, and the right side of a first L-shaped hole is communicated with the cavity on the right side of the piston sleeve.
Preferably, a notch is formed in the outer peripheral surface of the upper end of the second piston, an elastic sheet is fixed to the second piston through the notch, a partition plate is arranged in the middle of the lower regulator shell, the second piston is matched with the partition plate in the middle, a second L-shaped hole is vertically formed in the left side of the second piston, the left opening of a second L-shaped hole is located in the middle of the left side of the second piston, a third L-shaped hole is vertically formed in the right side of the second piston, the right opening of a third L-shaped hole is located in the lower portion of the right side of the second piston, an annular bulge is arranged at the bottom end of the second piston, a second circular through hole is transversely formed in the middle of the left side of the lower regulator shell, the second circular through hole is connected with a vacuum dirt storage box through a pipeline, a third circular through hole is transversely formed in the lower regulator shell right side lower portion, and the connecting portion.
The invention also provides a variable control method of the sewage collection intelligent control interface valve, which comprises the following steps:
the method comprises the following steps: constructing an interface valve system; firstly, two ends of an interface valve are respectively connected with a closestool and an ejector; then the air flow channel at the left end of the ejector is respectively connected with a vacuum dirt storage box and a pressure stabilizer, the outer flow channel at the left end of the ejector is externally connected with a compressed air source, and the spray head at the right end of the ejector is connected with the vacuum dirt storage box; finally, connecting the lower end of the voltage stabilizer with the lower end of an adjuster, connecting the upper end of the adjuster with a vacuum pump, and connecting the left end of the adjuster with a vacuum dirt storage tank;
step two: the pressure in the interface valve system is regulated by an ejector and a regulator: the regulator feeds back the negative pressure signal in the interface valve system in time and adjusts the negative pressure value of the ejector.
The invention has the beneficial effects that: the invention can utilize the regulator to adjust the negative pressure value of the ejector through the feedback of the negative pressure signal, and ensure that the interface valve has enough negative pressure, thereby solving the problem of insufficient pressure during continuous use.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of an interface valve sewage collection system of an intelligent interface valve for sewage collection and a variable control method according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
fig. 3 is an enlarged view of a portion B of fig. 1 according to the present invention.
In the figure, the interface valve comprises a 1-interface valve body, a 2-pipeline, a 3-closestool, a 4-ejector shell, a 5-piston sleeve, a 6-first piston, a 7-baffle cover, an 8-ejector nozzle, a 9-spray head, a 10-pipe head, an 11-reed, a 12-vacuum dirt storage tank, a 13-pressure stabilizer, a 14-regulator lower shell, a 15-second piston, a 16-elastic sheet, a 17-regulator upper shell, an 18-vacuum pump, a 19-inner flow channel, a 20-air flow channel, a 21-square bulge, a 22-outer flow channel, a 23-first circular through hole, a 24-first L-shaped hole, a 25-notch, a 26-second L-shaped hole, a 27-third L-shaped hole, a 28-annular bulge, a 29-second circular through hole and a 30-third circular through hole.
[ detailed description ] embodiments
Referring to fig. 1, 2 and 3, the invention includes an interface valve body 1, the left and right ends of the interface valve body 1 are respectively connected with a toilet 3 and an ejector shell 4 through a pipeline 2, a piston sleeve 5 is transversely arranged in a cavity inside the ejector shell 4, a first piston 6 is arranged inside the piston sleeve 5, the first piston 6 is matched with an ejection nozzle 8 after passing through a baffle cover 7, the right end of the ejection nozzle 8 is arranged inside a spray head 9, the spray head 9 is fixed at the right end of the ejector shell 4 through a bolt, and the right end of the spray head 9 is connected with a vacuum dirt storage tank 12 through the pipeline 2; the outer side of the right end of the ejector shell 4 is provided with a pipe head 10, and the pipe head 10 is connected with the end face of the right end of the ejector shell 4 through a reed 11; the lower part of the left end of the ejector shell 4 is externally connected with a compressed air source through a pipeline 2; the middle part of the left end of the piston sleeve 5 is connected with a vacuum dirt storage tank 12 through a pipeline 2, the lower part of the left end of the piston sleeve 5 is connected with a pressure stabilizer 13 through the pipeline 2, the lower end of the pressure stabilizer 13 is connected with a lower regulator shell 14 through the pipeline 2, a second piston 15 is arranged in the middle of the lower regulator shell 14, an elastic sheet 16 is matched outside the upper end of the second piston 15, the elastic sheet 16 is fixed on the lower regulator shell 14, an upper regulator shell 17 is matched at the upper end of the lower regulator shell 14, and a vacuum pump 18 is connected at the upper end of the upper regulator shell 17 through the pipeline 2; the middle part of the left end of the lower shell 14 of the regulator is connected with a vacuum sewage storage tank 12 through a pipeline 2.
Specifically, an inner flow passage 19 is arranged inside the ejector shell 4, and a piston sleeve 5, a first piston 6, a baffle cover 7 and an ejection nozzle 8 are accommodated in the inner flow passage 19; the jet device shell 4 is internally and transversely provided with 2 airflow channels 20, and the airflow channels 20 are connected with the vacuum sewage storage tank 12 or the pressure stabilizer 13 through the pipeline 2; the wall surface of the inner cavity of the ejector shell 4 and the wall surface of the inner cavity of the spray head 9 are both provided with square bulges 21, and the square bulges 21 are matched with the baffle cover 7 and the jet nozzle 8; an outer flow channel 22 is arranged inside the ejector shell 4, and the left end of the outer flow channel 22 is externally connected with a compressed air source through a pipeline 2.
Specifically, a cavity is formed in the right side of the piston sleeve 5, a first piston 6 is arranged in the cavity on the right side of the piston sleeve 5, the section of the first piston 6 is of a T-shaped structure, a first circular through hole 23 is transversely formed in the middle of the left side of the piston sleeve 5, the left side of the first circular through hole 23 is communicated with an air flow channel 20 formed in the ejector shell 4, a first L-shaped hole 24 is transversely formed below the piston sleeve 5, the left side of the first L-shaped hole 24 is communicated with the air flow channel 20 formed in the ejector shell 4, and the right side of the first L-shaped hole 24 is communicated with the cavity on the right side of the piston sleeve 5.
Specifically, a notch 25 is formed in the outer peripheral surface of the upper end of the second piston 15, an elastic sheet 16 is fixed to the second piston 15 through the notch 25, a partition plate is arranged in the middle of the lower regulator casing 14, the second piston 15 is matched with the partition plate in the middle, a second L-shaped hole 26 is vertically formed in the left side of the second piston 15, the left opening of a second L-shaped hole 26 is located in the middle of the left side of the second piston 15, a third L-shaped hole 27 is vertically formed in the right side of the second piston 15, the right opening of the third L-shaped hole 27 is located in the lower portion of the right side of the second piston 15, an annular protrusion 28 is arranged at the bottom end of the second piston 15, a second circular through hole 29 is transversely formed in the middle of the left side of the lower regulator casing 14, the second circular through hole 29 is connected with the vacuum dirt storage tank 12 through a pipeline 2, a third circular through hole 30 is transversely formed in the lower portion of the right side of the lower regulator casing 14, and the connection position of the.
The invention also comprises the following steps:
the method comprises the following steps: constructing an interface valve system; firstly, two ends of an interface valve are respectively connected with a closestool 3 and an ejector; then the air flow channel 20 at the left end of the ejector is respectively connected with the vacuum dirt storage tank 12 and the pressure stabilizer 13, the outer flow channel 22 at the left end of the ejector is externally connected with a compressed air source, and the spray head 9 at the right end of the ejector is connected with the vacuum dirt storage tank 12; finally, the lower end of the voltage stabilizer 13 is connected with the lower end of the regulator, the upper end of the regulator is connected with the vacuum pump, and the left end of the regulator is connected with the vacuum dirt storage tank 12;
step two: the pressure in the interface valve system is regulated by an ejector and a regulator: the regulator feeds back the negative pressure signal in the interface valve system in time and adjusts the negative pressure value of the ejector.
The working process of the invention is as follows:
the invention relates to an intelligent interface valve for sewage collection and a variable control method, which are explained in the working process by combining with the attached drawings.
When the negative pressure is interrupted, the regulator regulates the vacuum pump to generate linkage, the jet device is a nozzle type jet device which generates vacuum through jet flow and is a negative pressure booster, the jet nozzle 8 can move left and right under the action of the first piston 6, the movement is limited due to the existence of the square bulge 21, when the jet nozzle 8 moves right, the gap between the jet nozzle 8 and the spray head 9 is reduced, the speed is increased, and the negative pressure is increased, namely, when the pressure of the vacuum dirt storage box 12 connected with the jet device is increased, the pressure in the left side chamber of the first piston 6 is larger than the pressure of the pressure stabilizer 13 connected with the right side chamber, so that the first piston 6 can move the jet nozzle 8 to the right to increase the negative pressure, the vacuum pump 18 vacuumizes the vacuum dirt storage box 12, each time when the vacuum dirt storage box 12 is vacuumized, the vacuum dirt storage box 12 has a certain volume, particularly when the vacuum is frequently started, the vacuum cannot be achieved, the volume of the dirt storage box 12 is far larger than the volume of the vacuum dirt storage box 13 and the regulator lower shell 14, when the vacuum box 18 starts to be pumped, the vacuum dirt storage box 12 reaches a certain volume, and the vacuum pressure of the vacuum dirt storage box 12 is adjusted, and the vacuum channel 15 is adjusted, so that the vacuum pressure of the vacuum chamber 15 is adjusted, when the vacuum channel A is adjusted, the pressure of the second piston 15 is changed, the vacuum channel A is adjusted, the vacuum channel A is adjusted, the second piston 14 is adjusted, the vacuum channel 14 is changed, the vacuum channel A is changed, the pressure of the second piston 14 is changed, the vacuum channel 14 is adjusted, the vacuum channel 14 is.
The invention can utilize the regulator to adjust the negative pressure value of the ejector through the feedback of the negative pressure signal, and ensure that the interface valve has enough negative pressure, thereby solving the problem of insufficient pressure during continuous use.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides an interface valve is controlled to sewage collection intelligence which characterized in that: the interface valve comprises an interface valve body (1), wherein the left end and the right end of the interface valve body (1) are respectively connected with a closestool (3) and an ejector shell (4) through pipelines (2), a piston sleeve (5) is transversely arranged in a cavity in the ejector shell (4), a first piston (6) is arranged in the piston sleeve (5), the first piston (6) is matched with an ejection nozzle (8) after passing through a baffle cover (7), the right end of the ejection nozzle (8) is arranged in a spray head (9), the spray head (9) is fixed at the right end of the ejector shell (4) through bolts, and the right end of the spray head (9) is connected with a vacuum sewage storage tank (12) through the pipelines (2); the outer side of the right end of the ejector shell (4) is provided with a pipe head (10), and the pipe head (10) is connected with the end face of the right end of the ejector shell (4) through a reed (11); the lower part of the left end of the ejector shell (4) is externally connected with a compressed air source through a pipeline (2); the middle of the left end of the piston sleeve (5) is connected with a vacuum dirt storage tank (12) through a pipeline (2), the lower part of the left end of the piston sleeve (5) is connected with a pressure stabilizer (13) through the pipeline (2), the lower end of the pressure stabilizer (13) is connected with a lower regulator shell (14) through the pipeline (2), a second piston (15) is arranged in the middle of the lower regulator shell (14), an elastic sheet (16) is matched outside the upper end of the second piston (15), the elastic sheet (16) is fixed on the lower regulator shell (14), an upper regulator shell (17) is matched at the upper end of the lower regulator shell (14), and the upper end of the upper regulator shell (17) is connected with a vacuum pump (18) through the pipeline (2); the middle part of the left end of the lower shell (14) of the regulator is connected with a vacuum sewage storage tank (12) through a pipeline (2).
2. The intelligent interface valve for sewage collection according to claim 1, wherein: an inner flow channel (19) is arranged in the ejector shell (4), and a piston sleeve (5), a first piston (6), a blocking cover (7) and an ejection nozzle (8) are accommodated in the inner flow channel (19); the jet device shell (4) is internally and transversely provided with 2 airflow channels (20), and the airflow channels (20) are connected with a vacuum sewage storage tank (12) or a pressure stabilizer (13) through pipelines (2); the wall surface of the inner cavity of the ejector shell (4) and the wall surface of the inner cavity of the spray head (9) are both provided with square bulges (21), and the square bulges (21) are matched with the blocking cover (7) and the jet nozzle (8); an outer flow channel (22) is arranged inside the ejector shell (4), and the left end of the outer flow channel (22) is externally connected with a compressed air source through a pipeline (2).
3. The intelligent interface valve for sewage collection according to claim 1, wherein a cavity is formed in the right side of the piston sleeve (5), a first piston (6) is arranged in the cavity in the right side of the piston sleeve (5), the cross section of the first piston (6) is of a T-shaped structure, a first circular through hole (23) is transversely formed in the middle of the left side of the piston sleeve (5), the left side of the first circular through hole (23) is communicated with an air flow channel (20) formed in the ejector shell (4), a first L-shaped hole (24) is transversely formed below the piston sleeve (5), the left side of the first L-shaped hole (24) is communicated with the air flow channel (20) formed in the ejector shell (4), and the right side of the first L-shaped hole (24) is communicated with the cavity in the right side of the piston sleeve (5).
4. The interface valve of claim 1, wherein the outer peripheral surface of the upper end of the second piston (15) is provided with a notch (25), the second piston (15) is fixed with an elastic sheet (16) through the notch (25), the middle of the lower regulator housing (14) is provided with a partition board, the middle of the partition board is matched with the second piston (15), the left side of the interior of the second piston (15) is vertically provided with a second L-shaped hole (26), the left side opening of the second L-shaped hole (26) is located in the middle of the left side of the second piston (15), the right side of the interior of the second piston (15) is vertically provided with a third L-shaped hole (27), the right side opening of the third L-shaped hole (27) is located at the lower right side of the second piston (15), the bottom end of the second piston (15) is provided with an annular protrusion (28), the left middle of the lower regulator housing (14) is transversely provided with a second circular through hole (29), the second circular through hole (29) is connected with a vacuum sewage storage tank (12) through a pipeline (2), the right side opening of the lower regulator housing (14) is provided with a third circular through hole (30), and the upper regulator housing (17) is connected with the right end of the regulator housing (17) through pipeline (17.
5. A variable control method of an intelligent interface valve for sewage collection is characterized in that: the method comprises the following steps:
the method comprises the following steps: constructing an interface valve system; firstly, two ends of an interface valve are respectively connected with a closestool (3) and an ejector; then an air flow channel (20) at the left end of the ejector is respectively connected with a vacuum dirt storage tank (12) and a pressure stabilizer (13), an outer flow channel (22) at the left end of the ejector is externally connected with a compressed air source, and a spray head (9) at the right end of the ejector is connected with the vacuum dirt storage tank (12); finally, the lower end of the voltage stabilizer (13) is connected with the lower end of the regulator, the upper end of the regulator is connected with the vacuum pump, and the left end of the regulator is connected with the vacuum dirt storage tank (12);
step two: the pressure in the interface valve system is regulated by an ejector and a regulator: the regulator feeds back the negative pressure signal in the interface valve system in time and adjusts the negative pressure value of the ejector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216232.6A CN111395485B (en) | 2020-03-25 | 2020-03-25 | Intelligent control interface valve for sewage collection and variable control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216232.6A CN111395485B (en) | 2020-03-25 | 2020-03-25 | Intelligent control interface valve for sewage collection and variable control method |
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| CN111395485A true CN111395485A (en) | 2020-07-10 |
| CN111395485B CN111395485B (en) | 2021-05-04 |
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| CN202010216232.6A Active CN111395485B (en) | 2020-03-25 | 2020-03-25 | Intelligent control interface valve for sewage collection and variable control method |
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| CN109138114A (en) * | 2018-08-31 | 2019-01-04 | 杭州电子科技大学 | A kind of closestool micro-control push-button control system |
| JP3219604U (en) * | 2018-02-26 | 2019-01-10 | 台灣氣立股▲ふん▼有限公司 | Vacuum energy-saving large-capacity precision pressure regulator |
| CN110552206A (en) * | 2019-09-20 | 2019-12-10 | 浙江肯特科技股份有限公司 | Hydrophobic fabric manufacturing system |
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| CN202348796U (en) * | 2011-08-23 | 2012-07-25 | 捷锐企业(上海)有限公司 | Gas jet-type negative pressure generator and gas jet-type negative pressure adjustor |
| DE202017103194U1 (en) * | 2017-05-26 | 2018-08-28 | Neoperl Gmbh | sanitary valve |
| CN110637133A (en) * | 2017-05-26 | 2019-12-31 | 纽珀有限公司 | Sanitary valve with diaphragm |
| JP3219604U (en) * | 2018-02-26 | 2019-01-10 | 台灣氣立股▲ふん▼有限公司 | Vacuum energy-saving large-capacity precision pressure regulator |
| CN208121923U (en) * | 2018-03-19 | 2018-11-20 | 无锡万里实业集团有限公司 | Vacuum freeze mode feces collecting system with separator |
| CN108843816A (en) * | 2018-07-25 | 2018-11-20 | 厚力德机器（杭州）有限公司 | A kind of soft stamp vacuum interface valve of high throughput |
| CN109138114A (en) * | 2018-08-31 | 2019-01-04 | 杭州电子科技大学 | A kind of closestool micro-control push-button control system |
| CN110552206A (en) * | 2019-09-20 | 2019-12-10 | 浙江肯特科技股份有限公司 | Hydrophobic fabric manufacturing system |
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| CN111395485B (en) | 2021-05-04 |
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