A pneumatically controlled water outlet switch and a control method thereof

Abstract

The present invention belongs to the field of switch technology, and is particularly a pneumatically controlled water outlet switch and a control method thereof, comprising a valve body, a water stop pad, a valve cover, a valve needle piston, an air bag, a fixing sleeve, a deflation valve body and an air pump; a nut is provided on the water inlet end of the front end of the valve body through a threaded connection, a valve cover is installed on the right end of the valve body, a water stop pad is installed at the connection between the valve cover and the valve body, a valve needle piston is installed inside the valve cover, a spring is provided between the valve needle piston and the left end inside the valve cover, the air bag is installed inside the valve cover through a fixing sleeve, an air nozzle is connected to the air bag, an air pipe is connected inside the air nozzle, the air pipe is connected to the deflation valve body through an air pipe joint, and the air outlet of the air pump is connected to the deflation valve body through a silicone tube. When the air pump of the present invention is not inflated, the valve body is in a closed state, and water cannot pass through; when the air pump is inflated, the valve body is in an open state, and water flows out through the valve body; the water switch is realized, and the function is stable and the anti-fouling effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of switches, and in particular relates to a pneumatically controlled water outlet switch and a control method thereof. Background Art

[0002] The toilet is one of the sanitary ware that people often use in their daily life. The solenoid valve water outlet switch in the prior art is easy to fail in a dirty water environment. At the same time, when the water pressure is low, the flow rate is small and the toilet cannot be flushed. Summary of the invention

[0003] To solve the problems raised in the above background technology, the present invention provides a pneumatically controlled water outlet switch and a control method thereof. When the air pump is not inflated, the valve body is in a closed state and water cannot pass through; when the air pump is inflated, the valve body is in an open state and water flows out through the valve body; the water switch is realized, and the function is stable and the anti-fouling effect is good.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pneumatically controlled water outlet switch, comprising a valve body, a water stop pad, a valve cover, a valve needle piston, an air bag, a fixing sleeve, an air nozzle, an air relief valve body and an air pump; a nut is provided on the water inlet end of the front end of the valve body through a threaded connection, a valve cover is installed on the right end of the valve body, a water stop pad is installed at the connection between the valve cover and the valve body, a valve needle piston is installed inside the valve cover, a spring is provided between the valve needle piston and the left end inside the valve cover, the air bag is installed inside the valve cover through a fixing sleeve, an air nozzle is connected to the air bag, an air pipe is connected inside the air nozzle, the air pipe is connected to the air relief valve body through an air pipe joint, and the air outlet of the air pump is interconnected with the air relief valve body through a silicone tube.

[0005] Preferably, a plastic pad and a rubber pad are also provided on the water inlet end of the front end of the valve body.

[0006] Preferably, the rear end of the valve needle piston is in contact with the airbag.

[0007] Preferably, the front end of the valve needle piston passes through the valve cover and the water stop pad and is connected to the water inlet cavity inside the valve body.

[0008] Preferably, a water outlet is connected to the bottom of the valve body.

[0009] Preferably, a drain groove is provided on the valve needle of the valve needle piston.

[0010] Preferably, the air relief valve body is provided with air relief valve micropores.

[0011] Furthermore, a control method for a pneumatically controlled water outlet switch is provided, the control method being as follows:

[0012] S1. The operation steps of the water stop state of the pneumatically controlled water outlet switch are as follows:

[0013] S11, when the air pump is not started to inflate, the valve needle piston is located inside the valve cover, and there is extrusion between the valve needle piston and the spring, and the valve needle of the valve needle piston is in the water stop pad;

[0014] S12, at this time, the rear sealing point of the water stop pad is sealed; the front sealing point of the water stop pad is in an open state, and water reaches the sealing chamber through the gap between the valve needle of the valve needle piston and the water stop pad. Driven by the water pressure, the water stop pad bulges and seals the water stop surface, achieving a water stop action;

[0015] S2, the water outlet status operation steps of the pneumatically controlled water outlet switch are as follows:

[0016] S21, when the air pump is started to pump air, the air pump inflates the air bag through the air pipe and the air nozzle, and the expansion of the air bag pushes the valve needle piston to move leftward inside the valve cover, the valve needle piston squeezes the spring, and the valve needle of the valve needle piston passes through the water stop pad and extends to the water inlet cavity inside the valve body;

[0017] S22, at this time, the sealing point behind the water stop pad is opened; the sealing point in front of the water stop pad is in a sealed state, the water in the cavity leaks out from the drain groove of the rear section of the valve needle piston, the water stop pad is separated from the water stop surface, and the water leaks out from the gap between the water stop surface and the water stop pad;

[0018] S23. The air pressure is slowly released from the micropores on the air relief valve body. When the air pressure value is less than the spring force value, the valve needle piston is pushed to the right by the force of the spring and returns to its original position. The valve needle piston returns to the water-stop state, and the valve body returns to the water-stop state.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] When the air pump of the present invention is not inflated, the valve body is in a closed state and water cannot pass through; when the air pump is inflated, the valve body is in an open state and water flows out through the valve body; the water switch is realized, the stability of the electronic water switch is greatly improved, and the anti-fouling effect is good;

[0021] When the air pump is not inflated, the valve needle piston is in the rear position. At this time, the rear sealing point of the water stop pad is sealed; the front sealing point of the water stop pad is in an open state, and water reaches the sealing cavity through the gap between the valve needle and the water stop pad. Driven by the water pressure, the water stop pad bulges and seals the water stop surface to achieve water stopping action.

[0022] When the air pump is inflating, the valve needle piston is in the front position, and the sealing point behind the water stop pad is opened; the sealing point in front of the water stop pad is in a sealed state, and the water in the cavity leaks out from the drain groove at the rear section of the valve needle piston, the water stop pad is separated from the water stop surface, and water leaks out from the gap between the water stop surface and the water stop pad; at the same time, the air pressure is slowly released from the micropores of the air relief valve. When the air pressure value is less than the spring force value, the valve needle piston is pushed by the spring and returns to its original position, the valve needle piston returns to the water stop state, and the valve body returns to the water stop state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a structural schematic diagram of a pneumatically controlled water outlet switch of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a pneumatically controlled water outlet switch embodiment of the present invention in a water stopping state;

[0026] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 It is a structural schematic diagram of the water outlet state of a pneumatically controlled water outlet switch embodiment of the present invention;

[0028] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0029] In the figure, 1. nut; 2. plastic pad; 3. rubber pad; 4. valve body; 5. water stop pad; 6. valve cover; 7. valve needle piston; 8. air bag; 9. fixing sleeve; 10. air nozzle; 11. air pipe; 12. air pipe joint; 13. air relief valve body; 14. silicone tube; 15. air pump; 16. water inlet end; 17. spring; 18. water outlet end. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Example 1

[0034] See also Figure 1 The present invention provides the following technical solutions: a pneumatically controlled water outlet switch, comprising a valve body 4, a water stop pad 5, a valve cover 6, a valve needle piston 7, an air bag 8, a fixing sleeve 9, an air nozzle 10, an air relief valve body 13 and an air pump 15; a nut 1 is provided on the water inlet end 16 of the front end of the valve body 4 through a threaded connection, a valve cover 6 is installed on the right end of the valve body 4, a water stop pad 5 is installed at the connection between the valve cover 6 and the valve body 4, a valve needle piston 7 is installed inside the valve cover 6, a spring 17 is provided between the valve needle piston 7 and the left end inside the valve cover 6, the air bag 8 is installed inside the valve cover 6 through the fixing sleeve 9, an air nozzle 10 is connected to the air bag 8, an air pipe 11 is connected inside the air nozzle 10, the air pipe 11 is connected to the air relief valve body 13 through an air pipe joint 12, and the air outlet of the air pump 15 is connected to the air relief valve body 13 through a silicone tube 14.

[0035] Specifically, a plastic pad 2 and a rubber pad 3 are further provided on the water inlet end 16 at the front end of the valve body 4 .

[0036] Specifically, the rear end of the valve needle piston 7 is in contact with the air bag 8 .

[0037] Specifically, the front end of the valve needle piston 7 passes through the valve cover 6 and the water stop pad 5 and is connected to the water inlet cavity inside the valve body 4 .

[0038] Specifically, a water outlet 18 is connected to the bottom of the valve body 4 .

[0039] Specifically, a drain groove is provided on the valve needle of the valve needle piston 7 .

[0040] Specifically, the air release valve body 13 is provided with air release valve micropores.

[0041] In addition, a sealing ring is provided at the connection between the valve body 4 and the valve cover 6 .

[0042] like Figure 2-3 As shown, a control method for a pneumatically controlled water outlet switch,

[0043] S1. The operation steps of the water stop state of the pneumatically controlled water outlet switch are as follows:

[0044] S11, when the air pump 15 is not started to pump air, the valve needle piston 7 is located inside the valve cover 6, and there is extrusion between the valve needle piston 7 and the spring 17, and the valve needle of the valve needle piston 7 is located in the water stop pad 5;

[0045] S12, at this time, the rear sealing point of the water stop pad 5 is sealed; the front sealing point of the water stop pad 5 is in an open state, and water reaches the sealing cavity through the gap between the valve needle of the valve needle piston 7 and the water stop pad 5. Driven by the water pressure, the water stop pad 5 bulges and seals the water stop surface, achieving a water stop action;

[0046] like Figure 4-5 As shown, a control method of a pneumatically controlled water outlet switch is provided, and the water outlet state operation steps of the pneumatically controlled water outlet switch are as follows:

[0047] S21, when the air pump 15 is started to inflate, the air pump 15 inflates the air bag 8 through the air pipe 11 and the air nozzle 10, and the air bag 8 expands to push the valve needle piston 7 to move leftward inside the valve cover 6, the valve needle piston 7 squeezes the spring 17, and the valve needle of the valve needle piston 7 passes through the water stop pad 5 and extends to the water inlet cavity inside the valve body 4;

[0048] S22, at this time, the rear sealing point of the water stop pad 5 is opened; the front sealing point of the water stop pad 5 is in a sealed state, the water in the cavity leaks out from the drain groove of the rear section of the valve needle piston 7, the water stop pad 5 is disengaged from the water stop surface, and the water leaks out from the gap between the water stop surface and the water stop pad 5;

[0049] S23, the air pressure is slowly released from the micropores on the air relief valve body 13. When the air pressure value is less than the force value of the spring 17, the valve needle piston 7 is pushed to the right by the force of the spring 17 and returns to its original position. The valve needle piston 7 returns to the water-stop state, and the valve body 4 returns to the water-stop state.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pneumatically controlled water outlet switch, characterized in that: The invention comprises a valve body (4), a water stop pad (5), a valve cover (6), a valve needle piston (7), an air bag (8), a fixing sleeve (9), an air nozzle (10), an air relief valve body (13) and an air pump (15); a nut (1) is provided on the water inlet end (16) of the front end of the valve body (4) through a threaded connection, a valve cover (6) is installed on the right end of the valve body (4), a water stop pad (5) is installed at the connection between the valve cover (6) and the valve body (4), a valve needle piston (7) is installed inside the valve cover (6), and the valve needle piston (7) is connected to the valve body (4). A spring (17) is arranged between the left ends of the inside of the valve cover (6); the air bag (8) is installed inside the valve cover (6) through a fixing sleeve (9); an air nozzle (10) is connected to the air bag (8); an air pipe (11) is connected to the inside of the air nozzle (10); the air pipe (11) is connected to the air relief valve body (13) through an air pipe joint (12); the air outlet of the air pump (15) is connected to the air relief valve body (13) through a silicone tube (14); a water drain groove is arranged on the valve needle of the valve needle piston (7); The control method of the pneumatically controlled water outlet switch is as follows: S1. The operation steps of the water stop state of the pneumatically controlled water outlet switch are as follows: S11, when the air pump (15) is not started to pump air, the valve needle piston (7) is located inside the valve cover (6), and no compression is formed between the valve needle piston (7) and the spring (17), and the valve needle of the valve needle piston (7) is located inside the water stop pad (5); S12, at this time, the rear sealing point of the water stop pad (5) is sealed; the front sealing point of the water stop pad (5) is in an open state, and water reaches the sealing chamber through the gap between the valve needle of the valve needle piston (7) and the water stop pad (5). Driven by the water pressure, the water stop pad (5) swells and seals the water stop surface, thereby achieving a water stop action; S2, the water outlet status operation steps of the pneumatically controlled water outlet switch are as follows: S21, when the air pump (15) is started to pump air, the air pump (15) inflates the air bag (8) through the air pipe (11) and the air nozzle (10), the air bag (8) expands and pushes the valve needle piston (7) to move leftward inside the valve cover (6), the valve needle piston (7) compresses the spring (17), and the valve needle of the valve needle piston (7) passes through the water stop pad (5) and extends into the water inlet chamber inside the valve body (4); S22, at this time, the rear sealing point of the water stop pad (5) is opened; the front sealing point of the water stop pad (5) is in a sealed state, the water in the cavity is discharged from the drain groove of the rear section of the valve needle piston (7), the water stop pad (5) is separated from the water stop surface, and the water is discharged from the gap between the water stop surface and the water stop pad (5); S23, the air pressure is slowly released from the micro-holes on the air relief valve body (13). When the air pressure value is less than the force value of the spring (17), the valve needle piston (7) is pushed to the right by the force of the spring (17) and returns to its original position. The valve needle piston (7) returns to the water-stop state, and the valve body (4) returns to the water-stop state.

2. The pneumatically controlled water outlet switch according to claim 1, characterized in that: A plastic pad (2) and a rubber pad (3) are also provided on the water inlet end (16) at the front end of the valve body (4).

3. The pneumatically controlled water outlet switch according to claim 1, characterized in that: The rear end of the valve needle piston (7) is in contact with the air bag (8).

4. The pneumatically controlled water outlet switch according to claim 1, characterized in that: The front end of the valve needle piston (7) passes through the valve cover (6) and the water stop pad (5) and is connected to the water inlet chamber inside the valve body (4).

5. The pneumatically controlled water outlet switch according to claim 1, characterized in that: The bottom of the valve body (4) is connected to a water outlet (18).

6. The pneumatically controlled water outlet switch according to claim 1, characterized in that: The air relief valve body (13) is provided with an air relief valve microhole.

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