CN112081974B - Water inlet device - Google Patents
Water inlet device Download PDFInfo
- Publication number
- CN112081974B CN112081974B CN202010790973.5A CN202010790973A CN112081974B CN 112081974 B CN112081974 B CN 112081974B CN 202010790973 A CN202010790973 A CN 202010790973A CN 112081974 B CN112081974 B CN 112081974B
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- Prior art keywords
- water
- valve core
- unit
- shell
- pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 238000007789 sealing Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/32—Arrangement of inlet valves
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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
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a water inlet device, which comprises: the device comprises a middle unit and a rear unit, wherein the middle unit comprises a shell and a first valve core, the shell is provided with a water inlet, a water outlet, an internal water flow channel and an adjusting channel; the first valve core is movably inserted in the adjusting channel and can open or close the water flow channel; the rear unit comprises a shell and a second valve core, the shell is provided with a water inlet, a water outlet and an internal water flow channel, and the water inlet of the rear unit is connected with the water outlet of the middle unit; the second valve core is movably inserted in the water flow channel of the shell. The invention can adjust the water pressure.
Description
Technical Field
The invention relates to a water inlet device, in particular to a water inlet device for an intelligent closestool.
Background
The common intelligent closestool realizes the on/off of a water path in an electric control mode through an electromagnetic valve. Normally closed solenoid valve is set before the pressure maintaining valve to prevent high pressure from being transmitted to inside.
Disclosure of Invention
The invention mainly aims to provide a purely mechanical hydraulic and non-electric control water inlet device.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a water intake apparatus, comprising: a middle unit and a rear unit, wherein,
the middle unit comprises a first shell and a first valve core, wherein the first shell is provided with a water inlet, a water outlet, an internal water flow channel and an adjusting channel; the first valve core is movably inserted in the adjusting channel and can open or close the water flow channel, and at least two sealing units are arranged between the outer wall of the first valve core and the inner wall of the adjusting channel; the sealing unit close to the water flow channel is a first sealing unit, the sealing unit far away from the water flow channel is a second sealing unit, a first low-pressure cavity area is arranged between one side of the second sealing unit far away from the water flow channel and the shell, and the first low-pressure cavity area is provided with a first connecting hole;
the rear unit comprises a second shell, a second valve core, a water inlet, a water outlet and an internal water flow channel, wherein the second shell is provided with the water inlet and the water outlet; the second valve core is movably inserted in the water flow channel of the shell; the inner wall of the valve body is provided with a demarcation point for changing the cross-sectional water passing area, when the second valve core moves in the water flow channel, the sectional area of the water flow channel between the outer wall of the valve core and the inner wall of the valve body can be changed, the water flow channel between the demarcation point and the water inlet of the rear unit is a second high-pressure cavity, and the water flow channel between the demarcation point and the water outlet of the rear unit is a second low-pressure cavity; the second low pressure chamber is provided with a second communication hole which communicates with the first communication hole of the middle unit.
In a preferred embodiment, the said elastic mechanism that the middle unit makes the first valve core reset.
In a preferred embodiment, the elastic mechanism is a spring, one end of the spring is propped against the valve core, and the other end of the spring is propped against the shell.
In a preferred embodiment, the first valve core further comprises a sealing gasket sleeved at the lower end of the valve core and used for sealing the water outlet channel.
In a preferred embodiment, the middle part of the rear unit valve core is annularly provided with a groove, the inner wall of the shell is annularly provided with a convex part, the convex part is a boundary point, when the valve core moves up and down in the second shell, the position of the groove relative to the convex part changes, and the size of the gap is adjusted, so that the water pressure of the low-pressure cavity above the groove is kept within a certain range.
In a preferred embodiment, the rear unit further comprises a spring, one end of the spring is propped against the valve core, and the other end of the spring is propped against the shell; the upper end of the second valve core is arranged in the valve core fixing cover in a sliding manner, and the lower end of the second valve core is fixed in a bottom cover at the bottom of the shell in a sliding manner.
In a preferred embodiment, the communication mode between the second communication hole of the rear unit and the first communication hole of the middle unit includes insertion connection, screw connection or water pipe connection between two ends.
In a preferred embodiment, the device further comprises a front unit, wherein the front unit comprises a water inlet and a water outlet, and the water outlet is connected with the water inlet channel of the middle unit.
The invention also provides a use method of the water inlet device, which comprises the following steps:
under a normal state, water enters the middle unit from the water inlet of the middle unit, then enters the water inlet of the rear unit from the water outlet channel of the middle unit, and enters the regulating channel of the rear unit;
1) when the water pressure borne by the first low-pressure cavity area of the middle unit is greater than the preset water pressure P1, the first valve core of the middle unit moves downwards to close the water inlet end waterway through the sealing gasket; when the water pressure borne by the first low-pressure cavity area is less than P1, the first valve core of the middle unit moves upwards to open a water inlet end waterway;
2) when the water outlet channel of the rear unit is opened, the pressure of the low-pressure cavity of the rear unit is reduced until the pressure is reduced to be less than P1, and the valve core of the middle unit overcomes the spring force to move upwards to open the water inlet end waterway;
when the water outlet channel of the rear unit is closed, the pressure of the low-pressure cavity of the rear unit is increased until the pressure is increased to be larger than P1, and the first valve core of the middle unit moves downwards to close the water outlet channel of the middle unit against the spring force.
In a preferred embodiment, the water outlet channel of the rear unit is opened and closed by a waterway switch connected to the low-pressure chamber of the rear unit.
Compared with the background technology, the technical scheme has the following advantages:
1. the present invention can close the water outlet passage of the middle unit when the water pressure of the front end, e.g., tap water, is suddenly increased or the water outlet passage of the rear unit is closed, thereby preventing high pressure.
2. There is no need to provide a normally closed solenoid valve assembly between the tap water and the pressure maintaining valve.
The mechanical hydraulic switch valve can be switched on and off without power on, and meanwhile, the flow stabilizing function is attached to ensure the safety of a rear-end water path, so that the valve has stronger applicability on an intelligent closestool.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a perspective view of a water inlet device according to a preferred embodiment.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic perspective view of the front unit.
Fig. 4 is an exploded structure diagram of the middle unit.
FIG. 5 is a schematic diagram of an exploded structure of the rear unit;
FIG. 6 is a cross-sectional view taken along the direction of line A-A of FIG. 2 and a partial enlargement thereof, with the unit in an open state;
Fig. 7 is a cross-sectional view taken along the direction of fig. 2A-a, showing the unit in a closed state.
Detailed Description
Referring to fig. 1 to 7, a water inlet apparatus includes a front unit 100, a middle unit 200, and a rear unit 300. Wherein the front unit is provided with a water inlet 110 of the whole water inlet device, and the rear unit is provided with a water outlet 322 of the whole water inlet device.
The illustrated middle unit 200 includes a housing 210, a spring 220, a sealing gasket 230, a valve core 240, a valve cover 250, a first sealing ring 260, and a second sealing ring 270. The shell comprises a water inlet 211, a water outlet 212 and an adjusting port 213, and a water flow channel is arranged between the water inlet 211 and the water outlet 212; the adjusting interface 213 is provided with an adjusting channel 215 leading to the water flow channel, the water flow channel is divided into a water inlet channel 214 and a water outlet channel 216 according to the position of the adjusting channel 215 in the water flow channel, and the adjusting channel 215 can adjust the water path of the water flow channel to be opened or closed. The water inlet 211 is connected to the front unit water outlet 120.
The valve element 240 has a large end 241 and a small end 244, and the valve element 240 is inserted into the adjusting channel 215 and can move in the adjusting channel. The large end 241 faces upward and the small end can be inserted downward or away from the outlet passage 216 to close or open the outlet passage 216. Wherein, the first seal ring groove 242 is arranged around the outer peripheral surface of the big end, the second seal ring groove 243 is arranged around the middle lower part of the shaft core, the adjusting channel is also correspondingly shaped with big top and small bottom, the first seal ring 260 is arranged in the first seal ring groove 242 and seals the outer wall of the shaft core and the inner wall of the adjusting channel; the second seal 270 is disposed in the second seal groove 243 and seals the outer wall of the spindle and the inner wall of the adjustment passage. The spring 220 has one end thereof abutting against the lower surface of the large end and the other end thereof abutting against the adjusting passage, and in this embodiment, a spring groove is provided, and in another embodiment, a step or the like may be provided to limit the movement of the lower end of the spring. The gasket 230 is sleeved on the lower end 243 of the valve core, and when the valve core moves downwards, the water outlet channel 216 can be blocked. The bonnet seals the port 212. A first communication hole 214 is formed in a side surface of the adjustment passage 215 above an uppermost movement position of the first packing 260.
The rear unit 300 is a pressure maintaining valve structure, and includes a housing 320, a valve core 340, a valve cover 350, a spring 360, a valve core fixing cover 370, and the like. The housing 320 includes a water inlet 321 and a water outlet 322, and a water flow passage is provided therein to connect the water inlet and the water outlet. In this embodiment, the water inlet is disposed at the lower side of the casing 320, and the water outlet is disposed at the middle side of the casing 320. The water inlet 321 is connected to the middle unit water outlet 212. The valve core 340 has a large end 341 and a small end 342, and the large end 341 is a cup. The valve core 340 is inserted in the water flow channel and can move in the water flow channel, and the large end 341 faces upwards and the small end faces downwards; the middle part of the valve core is annularly provided with a groove 343, the inner wall of the shell is annularly provided with a convex part 324, when the valve core moves up and down in the shell, the position of the groove 343 is changed relative to the convex part 324, and the size of the gap is adjusted, so that the water pressure of a low-pressure cavity above the groove 343 is kept in a certain range (a high-pressure cavity is arranged below the groove 343). The spring 220 has one end abutting the upper surface of the large end and the other end abutting the lower surface of the valve core fixing cover 370 at the top of the housing. The upper (large) end of the valve core is slidably disposed in the valve core fixing cover 370, and the lower end is slidably fixed in the bottom cover 310 at the bottom of the housing. A second communication port 325 is provided in the side surface of the housing, and the second communication port 325 is provided in the low pressure chamber range. The second communication hole 325 communicates with the first communication hole 214. The water outlet 322 is located in the low pressure chamber.
Preferably, the water outlet 322 is connected to a waterway switch 400 to close or open the water outlet passage of the rear unit. The waterway switch 400 is preferably a manual switch.
The use of the invention is as follows:
referring to fig. 6, in a normal water pressure state, water enters from the water inlet 110 of the front unit, enters the water inlet 211 of the middle unit through the water outlet 120, and then enters the water inlet 321 of the rear unit from the water outlet 212 of the middle unit. Thereby entering the water flow path of the rear unit 300. The high-pressure cavity of the rear unit is communicated with the water inlet 110 of the whole device, and the water pressure is equal and changes along with the change of the water pressure at the outside; and since the second communication hole 325 communicates with the first communication hole 214, the chamber above the large end of the middle unit communicates with the low pressure chamber of the rear unit.
1. When the water pressure received by the large end of the valve core of the middle unit is greater than the preset water pressure P1, the valve core of the middle unit overcomes the spring to move downwards, and the water flow channel of the middle unit is closed through the sealing gasket 215. When the water pressure at the large end of the middle unit is less than P1, the valve core of the middle unit overcomes the upward movement of the spring to open the water inlet end waterway. Thereby automatically adjusting the on and off of the water flow and the size of the water flow of the middle unit.
2. The water outlet end of the low-pressure cavity of the rear unit is connected with a waterway switch 400 at the rear end.
1) When the waterway switch is opened, the pressure of the low-pressure cavity of the rear unit can be reduced until the pressure is reduced to be less than P1, the valve core of the middle unit overcomes the spring to move upwards to open the waterway of the water inlet end
2) When the waterway switch is closed, the pressure of the low-pressure cavity of the rear unit can be increased until the pressure is increased to be larger than P1, and the valve core of the middle unit overcomes the spring to move downwards to close the waterway at the water inlet end through the sealing gasket.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A water intake apparatus, comprising: a middle unit and a rear unit, wherein,
the middle unit comprises a first shell and a first valve core, wherein the first shell is provided with a water inlet, a water outlet, an internal water flow channel and an adjusting channel; the first valve core is movably inserted in the adjusting channel and can open or close the water flow channel, and at least two sealing units are arranged between the outer wall of the first valve core and the inner wall of the adjusting channel; the sealing unit close to the water flow channel is a first sealing unit, the sealing unit far away from the water flow channel is a second sealing unit, a first low-pressure cavity area is arranged between one side of the second sealing unit far away from the water flow channel and the shell, and the first low-pressure cavity area is provided with a first connecting hole;
The rear unit comprises a second shell and a second valve core, the second shell is provided with a water inlet, a water outlet and an internal water flow channel, and the water inlet of the rear unit is connected with the water outlet of the middle unit; the second valve core is movably inserted in the water flow channel of the shell; the inner wall of the second shell is provided with a boundary point for changing the cross-sectional water passing area, when the second valve core moves in the water flow channel, the sectional area of the water flow channel between the outer wall of the valve core and the inner wall of the second shell can be changed, the water flow channel between the boundary point and the water inlet of the rear unit is a second high-pressure cavity, and the water flow channel between the boundary point and the water outlet of the rear unit is a second low-pressure cavity; the second low pressure chamber is provided with a second communication hole communicating with the first communication hole of the middle unit.
2. A water intake apparatus as claimed in claim 1, wherein: the middle unit is provided with an elastic mechanism for resetting the first valve core.
3. A water intake apparatus as claimed in claim 2, wherein: the elastic mechanism is a spring, one end of the spring is propped against the valve core, and the other end of the spring is propped against the shell.
4. A water intake apparatus as claimed in claim 1, wherein: the first valve core also comprises a sealing gasket sleeved at the lower end of the valve core and used for sealing the water outlet channel.
5. A water intake apparatus according to claim 1, wherein: the middle part of the rear unit valve core is annularly provided with a groove, the inner wall of the second shell is annularly provided with a protruding part, the protruding part is a boundary point, when the valve core moves up and down in the second shell, the position of the groove relative to the protruding part changes, and the size of a gap is adjusted, so that the water pressure of a low-pressure cavity above the groove is kept within a certain range.
6. A water intake apparatus according to claim 5, wherein: the rear unit also comprises a spring, one end of the spring is propped against the valve core, and the other end of the spring is propped against the shell; the upper end of the second valve core is arranged in the valve core fixing cover in a sliding manner, and the lower end of the second valve core is fixed in a bottom cover at the bottom of the shell in a sliding manner.
7. A water intake apparatus as claimed in claim 1, wherein: the communication mode between the second communication hole of the rear unit and the first communication hole of the middle unit comprises insertion connection, spiral connection or water pipe connection between two end parts.
8. The water intake apparatus of claim 1, further comprising a front unit, the front unit including a water inlet and a water outlet, the water outlet being connected to the water intake passage of the middle unit.
9. A method of using a water intake device as claimed in claim 3, including the steps of:
under a normal state, water enters the middle unit from the water inlet of the middle unit, then enters the water inlet of the rear unit from the water outlet channel of the middle unit, and enters the water flow channel of the rear unit;
1) when the water pressure borne by the first low-pressure cavity area of the middle unit is greater than the preset water pressure P1, the first valve core of the middle unit moves downwards to close the water inlet end waterway through the sealing gasket; when the water pressure borne by the first low-pressure cavity area is less than P1, the first valve core of the middle unit moves upwards to open the water inlet end waterway;
2) when the water outlet channel of the rear unit is opened, the pressure of the low-pressure cavity of the rear unit is reduced until the pressure is reduced to be less than P1, and the valve core of the middle unit overcomes the spring force to move upwards to open the water inlet end waterway;
when the water outlet channel of the rear unit is closed, the pressure of the low-pressure cavity of the rear unit is increased until the pressure is increased to be larger than P1, and the first valve core of the middle unit moves downwards to close the water outlet channel of the middle unit against the spring force.
10. Use according to claim 9, characterized in that: the opening and closing of the water outlet channel of the rear unit are realized through a waterway switch which is connected with the low-pressure cavity of the rear unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790973.5A CN112081974B (en) | 2020-08-07 | 2020-08-07 | Water inlet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790973.5A CN112081974B (en) | 2020-08-07 | 2020-08-07 | Water inlet device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112081974A CN112081974A (en) | 2020-12-15 |
| CN112081974B true CN112081974B (en) | 2022-05-31 |
Family
ID=73735685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010790973.5A Active CN112081974B (en) | 2020-08-07 | 2020-08-07 | Water inlet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112081974B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002108458A (en) * | 2000-09-28 | 2002-04-10 | Yoshitake Inc | Pressure reducing valve |
| CN103322215A (en) * | 2013-06-21 | 2013-09-25 | 科勒(中国)投资有限公司 | Control valve |
| CN106894487A (en) * | 2017-04-20 | 2017-06-27 | 威迪亚（长泰）科技有限公司 | One kind rinses toilet lid |
| CN110822146A (en) * | 2019-06-17 | 2020-02-21 | 杭州春江阀门有限公司 | Constant-differential pressure reducing valve for stabilizing flow of regulating valve |
| CN210344402U (en) * | 2019-05-10 | 2020-04-17 | 厦门瑞尔特卫浴科技股份有限公司 | Reversing mechanism of water inlet device |
| CN111043356A (en) * | 2020-01-07 | 2020-04-21 | 惠达卫浴股份有限公司 | Synchronous switch valve core with voltage stabilizing function |
-
2020
- 2020-08-07 CN CN202010790973.5A patent/CN112081974B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002108458A (en) * | 2000-09-28 | 2002-04-10 | Yoshitake Inc | Pressure reducing valve |
| CN103322215A (en) * | 2013-06-21 | 2013-09-25 | 科勒(中国)投资有限公司 | Control valve |
| CN106894487A (en) * | 2017-04-20 | 2017-06-27 | 威迪亚（长泰）科技有限公司 | One kind rinses toilet lid |
| CN210344402U (en) * | 2019-05-10 | 2020-04-17 | 厦门瑞尔特卫浴科技股份有限公司 | Reversing mechanism of water inlet device |
| CN110822146A (en) * | 2019-06-17 | 2020-02-21 | 杭州春江阀门有限公司 | Constant-differential pressure reducing valve for stabilizing flow of regulating valve |
| CN111043356A (en) * | 2020-01-07 | 2020-04-21 | 惠达卫浴股份有限公司 | Synchronous switch valve core with voltage stabilizing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112081974A (en) | 2020-12-15 |
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Effective date of registration: 20220729 Address after: 361100 5th floor, building 4, No. 601, Tonghong Road, Tongan District, Xiamen City, Fujian Province Patentee after: BESTTER(XIAMEN) TECHNOLOGY Inc. Address before: 361000 area 06-901, area a, phase III, Jimei District, Xiamen City, Fujian Province Patentee before: Xiamen Moext Intelligent Technology Co.,Ltd. |