CN110762266B - Gas circuit delay valve and full-pneumatic excrement collecting device and method - Google Patents
Gas circuit delay valve and full-pneumatic excrement collecting device and method Download PDFInfo
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- CN110762266B CN110762266B CN201911055342.2A CN201911055342A CN110762266B CN 110762266 B CN110762266 B CN 110762266B CN 201911055342 A CN201911055342 A CN 201911055342A CN 110762266 B CN110762266 B CN 110762266B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses an air circuit delay valve, a full-air control excrement collecting device and a full-air control excrement collecting method, which solve the problem that the air circuit delay valve in the prior art can only complete delay action and cannot realize delay resetting, and have the effects of realizing delay resetting, adjusting delay resetting time and having simple and compact structure. The technical scheme is as follows: the valve comprises a valve head and a valve body which are connected together, wherein a first cavity is arranged inside the valve head, a second cavity is arranged inside the valve body, a piston is connected between the first cavity and the second cavity, and a spring is arranged in the second cavity; the spring is connected with the piston, and the piston can move to be in contact with an adjusting screw arranged at the tail end of the second cavity under the combined action of compressed air and the spring; the piston is provided with a communication hole which can connect the first cavity and the second cavity, the end part of the piston is provided with a throttling hole, and the time-delay reset is realized through the exhaust of the throttling hole; the orifice circumference is equipped with quick inlet port.
Description
Technical Field
The invention relates to the field of pneumatic control devices, in particular to a gas circuit delay valve, a full pneumatic control excrement collecting device and a full pneumatic control excrement collecting method.
Background
The full-pneumatic excrement collecting device is applied to a railway passenger car, and the working flow of the excrement collector is as follows: (1) pressing the flushing button opens the draining valve and flushes the toilet bowl with water from the water pressurizer to eliminate pollutant and clean the toilet bowl. (2) When the flushing button is released, the toilet bowl drain valve is closed, and the water booster stops flushing.
In order to ensure good flushing and pollution discharge effects, the water pressurizer needs to be flushed for about 2 seconds after the flushing button is released, and meanwhile, the toilet stool drain valve is closed after being delayed for about 2 seconds, so that the gas path delay valve capable of enabling the drain valve and the water pressurizer to be reset in a delayed mode is needed. The inventor finds that the existing gas circuit delay valve can only complete delay action generally and cannot realize delay resetting.
Disclosure of Invention
In order to overcome the defects of the prior art, the first object of the invention is to provide an air path delay valve which has the effects of realizing delay resetting, being adjustable in delay resetting time and being simple and compact in structure.
The second purpose of the invention is to provide an all-pneumatic control excrement collecting device, compressed air enters the air path delay valve by operating the manual valve so as to change the state of the air path delay valve.
The third purpose of the invention is to provide a using method of the full pneumatic control excrement collecting device.
The invention adopts the following technical scheme:
a gas circuit delay valve comprises a valve head and a valve body which are connected together, wherein a first cavity is arranged inside the valve head, a second cavity is arranged inside the valve body, a piston is connected between the first cavity and the second cavity, and a spring is arranged in the second cavity;
the spring is connected with the piston, and the piston can move to be in contact with an adjusting screw arranged at the tail end of the second cavity under the combined action of compressed air and the spring; the piston is provided with a communication hole which can connect the first cavity and the second cavity, the end part of the piston is provided with a throttling hole, and the time-delay reset is realized through the exhaust of the throttling hole; the orifice circumference is equipped with quick inlet port.
Furthermore, a rubber diaphragm is fixed at the end part of the piston, and one side of the quick air inlet hole is blocked by the rubber diaphragm, so that compressed air can pass through the quick air inlet hole in a single direction.
Further, the throttle hole is located in the center of the rubber diaphragm.
Furthermore, the adjusting screw is axially installed along the valve body, and the volume of the second cavity in the ventilation state is changed through the adjusting screw so as to adjust the delay reset time.
Further, an exhaust port is formed in the lower side of the valve head.
Furthermore, the upper side of the valve body is provided with a working opening.
Further, a sealing ring is arranged between the piston and the valve head.
The full pneumatic control excrement collecting device comprises the air path delay valve, a valve head is connected with a manual valve, the manual valve is connected with an air source, and a valve body is connected with the pneumatic control valve.
The use method of the full pneumatic control excrement collecting device comprises the following steps:
pressing the manual valve, enabling compressed air to enter the first cavity, enter the second cavity through the communication hole and the quick air inlet hole and flow out through the working hole; the piston moves to the right to the position of the adjusting screw under the combined action of the compressed air pressure and the elastic force of the spring;
the manual valve is loosened, the gas circuit delay valve exhausts gas, the gas is exhausted through the throttling hole, the air pressure of the second cavity is reduced along with the gas exhaust, and the piston moves leftwards under the action of the elastic force of the spring to realize delay resetting; when the piston moves to the normal position, the gas of the second chamber is discharged through the communication hole.
Compared with the prior art, the invention has the beneficial effects that:
(1) the piston is provided with the quick air inlet hole and the rubber diaphragm, so that compressed air can pass through the quick air inlet hole in one direction; setting a throttling hole, and realizing delayed reset through slow air exhaust of the throttling hole;
(2) the valve body is provided with the adjusting screw, and the time delay reset time is adjusted by adjusting the cavity space in the valve body; the piston is connected with a spring and is urged to reset by the elasticity of the spring;
(3) the volume of the second cavity in the ventilation state is changed through the adjusting screw, so that the time for the delayed resetting of the gas circuit delay valve is adjusted.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic diagram of a normal structure according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a venting state according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;
the gas valve comprises a valve body, a first cavity, a second cavity, a gas outlet, a second cavity, a working port, a valve head, a rapid gas inlet hole, a rubber diaphragm, a valve body, a throttling hole, a communicating hole, a sealing ring, a piston, a valve body, a spring, a regulating screw, a valve body, a regulating screw, a gas source, a manual valve, a valve body, a gas circuit delay valve, a valve body, a piston, a valve body, a spring, a regulating screw, a gas source, a gas circuit delay valve, a valve body delay valve body, a gas circuit delay valve, a valve body and a gas control valve.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the air circuit delay valve in the prior art generally can only complete delay action and cannot realize delay resetting, and in order to solve the technical problems, the invention provides the air circuit delay valve and a full-air control excrement collecting device and method.
The first embodiment is as follows:
the invention is described in detail below with reference to fig. 1-2, and specifically, the structure is as follows:
this embodiment provides a gas circuit delay valve, including valve head 5 and valve body 12, valve head 5 is inside to have first cavity 1, and valve body 12 is inside to have second cavity 3, and the internal diameter of second cavity 3 is greater than the internal diameter of first cavity 1. The valve head 5 is arranged at one end of the valve body 12, the other end of the valve body 12 is connected with the adjusting screw 14, and the volume of the second cavity 3 in the ventilation state is changed through the adjusting screw 14 so as to adjust the delay reset time.
A piston 11 is connected between the first cavity 1 and the second cavity 3, a sealing ring 10 is installed between the piston 11 and the valve head 5, and air leakage is avoided through the sealing ring 10. The longitudinal section of the piston 11 is T-shaped, and the piston 11 is arranged outside one end of the second cavity 3 and provided with a clamping groove, in this embodiment, the clamping groove is an annular groove.
A spring 13 is clamped in the clamping groove of the piston 11, the end part of the spring 13 is contacted with the inner wall of the second cavity 3, and the piston 11 is urged to reset by the elasticity of the spring 13; the piston 11 can be moved by the combined action of compressed air and the spring 13 until the end of the second chamber 3 comes into contact with the adjusting screw 14.
The piston 11 is arranged at one end of the first cavity 1 and provided with a third cavity with a certain depth along the axial direction, and a communicating hole 9 is arranged in the direction vertical to the third cavity, so that the first cavity 1 is communicated with the second cavity 3. And a rubber diaphragm 7 is fixed at the end part of the third cavity, a throttling hole 8 is formed in the center of the rubber diaphragm 7, and delayed reset is realized through slow exhaust of the throttling hole 8.
The front end erection joint seat of rubber diaphragm 7 sets up quick inlet port 6 on the connecting seat, and quick inlet port 6 sets up along 8 circumference of orifice, and rubber diaphragm 7 is close to the inside one side shutoff of third cavity with quick inlet port 6, makes compressed air one-way through quick inlet port 6. Wherein the fast inlet 6 is an inlet and the fast is defined relative to the discharge speed of the orifice 8.
An exhaust port 2 is formed in the lower side (with reference to the direction shown in the drawing) of the valve head 5, and a working port 4 is formed in the upper side of the valve body 12.
Example two:
as shown in fig. 3, this embodiment provides a full pneumatic control excrement collecting device, including the pneumatic control delay valve 17 described in the first embodiment, a valve head of the pneumatic control delay valve 17 is connected to the manual valve 16 through a pipeline, the manual valve 16 is connected to the air source 15 through a pipeline, and a valve body of the pneumatic control delay valve 17 is connected to the pneumatic control valve 18.
When the gas circuit delay valve 17 is in a normal state, the first cavity and the second cavity are communicated through the communication hole, and the piston is positioned at the left end of the delay valve (by taking the direction as the reference in the figure) under the action of the elastic force of the spring.
Pressing the manual valve 16, the compressed air enters the first cavity, enters the second cavity through the communication hole and the quick air inlet hole and flows out through the working port 4; the piston moves to the right under the combined action of compressed air pressure and spring elasticity to the position of the adjusting screw, and at the moment, compressed air rapidly enters the second cavity through the rapid air inlet hole.
The manual valve 16 is loosened, the gas path delay valve 17 exhausts gas, the gas is slowly exhausted through the throttling hole, along with the gas exhaust, the air pressure of the second cavity is reduced, the piston moves to the left under the action of the elastic force of the spring, and the delay reset is realized; when the piston moves to the normal position, the gas in the second chamber is rapidly discharged through the communication hole.
The volume of the second cavity in the ventilation state is changed through the adjusting screw, so that the time for delaying and resetting the delay valve is adjusted.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. The gas circuit delay valve is characterized by comprising a valve head and a valve body which are connected together, wherein a first cavity is arranged inside the valve head, a second cavity is arranged inside the valve body, a piston is connected between the first cavity and the second cavity, and a spring is arranged in the second cavity;
the spring is connected with the piston, and the piston can move to be in contact with an adjusting screw arranged at the tail end of the second cavity under the combined action of compressed air and the spring; the piston is provided with a communication hole which can connect the first cavity and the second cavity, the end part of the piston is provided with a throttling hole, and the time-delay reset is realized through the exhaust of the throttling hole; the throttling hole is circumferentially provided with a quick air inlet; the upper side of the valve body is provided with a working port;
when the gas circuit time delay valve is used for gas inlet, compressed air enters the first cavity, enters the second cavity through the communicating hole and the quick gas inlet hole and flows out through the working hole; the piston moves to the position of the adjusting screw rightwards under the combined action of compressed air pressure and spring elasticity, and at the moment, compressed air enters the second cavity through the quick air inlet;
when the gas path delay valve exhausts gas, the gas is exhausted through the throttling hole, the air pressure of the second cavity is reduced along with the gas exhaust, and the piston moves leftwards under the action of the elastic force of the spring to realize delay resetting; when the piston moves to the normal position, the gas of the second chamber is discharged through the communication hole.
2. The air path delay valve as claimed in claim 1, wherein a rubber diaphragm is fixed to the end of the piston, and the rubber diaphragm seals one side of the fast air inlet hole, so that compressed air can pass through the fast air inlet hole in one direction.
3. An air path delay valve as claimed in claim 2, wherein the orifice is located at the center of the rubber diaphragm.
4. The gas circuit delay valve of claim 1, wherein the adjusting screw is axially installed along the valve body, and the volume of the second cavity in the ventilation state is changed by the adjusting screw to adjust the delay reset time.
5. The gas circuit delay valve of claim 1, wherein the valve head is provided with an exhaust port at the lower side.
6. The gas circuit delay valve of claim 1, wherein a sealing ring is installed between the piston and the valve head.
7. An all-pneumatic control excrement collecting device is characterized by comprising the air circuit delay valve as claimed in any one of claims 1 to 6, wherein the valve head is connected with a manual valve, the manual valve is connected with an air source, and the valve body is connected with a pneumatic control valve.
8. The use method of the full pneumatic control excrement collecting device according to claim 7, wherein compressed air enters the first cavity by pressing the manual valve, enters the second cavity by the communication hole and the quick air inlet hole, and flows out by the working hole; the piston moves to the position of the adjusting screw rightwards under the combined action of compressed air pressure and spring elasticity, and at the moment, compressed air enters the second cavity through the quick air inlet;
the manual valve is loosened, the gas circuit delay valve exhausts gas, the gas is exhausted through the throttling hole, the air pressure of the second cavity is reduced along with the gas exhaust, and the piston moves leftwards under the action of the elastic force of the spring to realize delay resetting; when the piston moves to the normal position, the gas of the second chamber is discharged through the communication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055342.2A CN110762266B (en) | 2019-10-31 | 2019-10-31 | Gas circuit delay valve and full-pneumatic excrement collecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055342.2A CN110762266B (en) | 2019-10-31 | 2019-10-31 | Gas circuit delay valve and full-pneumatic excrement collecting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110762266A CN110762266A (en) | 2020-02-07 |
| CN110762266B true CN110762266B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911055342.2A Active CN110762266B (en) | 2019-10-31 | 2019-10-31 | Gas circuit delay valve and full-pneumatic excrement collecting device and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090551B (en) * | 2021-03-05 | 2022-11-25 | 佛山市兴沃机电有限公司 | Impeller chamber volume adjusting device of water pump |
| CN114576401B (en) * | 2022-03-17 | 2023-08-25 | 宁波广知电子科技有限公司 | Mechanical delay valve for fire-fighting system and operation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2310509A1 (en) * | 1975-05-06 | 1976-12-03 | Chasselon Instr Precision | Controllable period sprinkler valve - has differential piston with regulator passage controlling time delay before closure |
| CN1013218B (en) * | 1989-12-22 | 1991-07-17 | 綦建前 | Diaphragm valve |
| CN2132173Y (en) * | 1992-05-11 | 1993-05-05 | 孙泉 | Protector for pressure gauge |
| CN2925404Y (en) * | 2006-03-18 | 2007-07-25 | 周效亚 | Time-delayed air-source shutoff assembly |
| EP2584205B1 (en) * | 2010-06-15 | 2015-10-07 | Kosmek Ltd. | Time-delay valve |
| CN202349327U (en) * | 2011-11-22 | 2012-07-25 | 福建夏龙卫浴有限公司 | Delay flushing valve easy to use |
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2019
- 2019-10-31 CN CN201911055342.2A patent/CN110762266B/en active Active
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| CN110762266A (en) | 2020-02-07 |
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Effective date of registration: 20230403 Address after: 215557 Zhengwen Road, Yushan High-tech Industrial Park, Changshu, Suzhou, Jiangsu Province Patentee after: Jiangsu CRRC Huateng Environmental Protection Technology Co.,Ltd. Address before: 250101 No. 3666 Century Avenue, Jinan High-tech Zone, Shandong Province Patentee before: SHANDONG CRRC HUATENG ENVIRONMENT Co.,Ltd. |