Solenoid control valve of excrement cleaning device

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses an electromagnetic control valve of an excrement cleaning device, which comprises a valve body, an air inlet and a working port are arranged at the lower end of the valve body, the air inlet is communicated with the valve body through a cavity A, the working port is communicated with the valve body through a cavity B. A piston cavity communicated with the cavity A and the cavity B respectively is arranged in the valve body. A piston cavity is formed in the valve body, a piston assembly is arranged in the piston cavity and comprises a valve rod, a sealing plug is arranged at the lower end of the valve rod, a piston is arranged on the valve rod, the top end of the valve body is connected with an electromagnetic valve, the electromagnetic valve is connected with the valve rod in a matched mode, a pilot head is arranged on the electromagnetic valve, a pilot opening is formed in the valve body, and the pilot opening is communicated with the electromagnetic valve. By arranging the electromagnetic valve and the piston assembly, effective control over communication between the air inlet and the working opening is achieved, pipelines in the valve chamber are simplified to the maximum extent, disorder is avoided, and the air pressure in the valve body is always stable.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic control valve for a toilet cleaner. Background Art

[0002] Currently, the common switch devices used to control the air inlet pipeline of toilet cleaners on the market are mostly control valves composed of an actuator seat and a regulating valve, and an air pipe is used to connect the actuator seat and the regulating valve. This will result in numerous pipelines inside the valve chamber and chaotic pipelines, which can easily cause unstable gas pressure in the control valve, thereby affecting the opening and closing of the air inlet pipeline. Utility Model Content

[0003] The utility model aims to provide a solenoid control valve for a toilet cleaner to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solenoid control valve for a toilet, comprising a valve body, an air inlet and a working port are provided at the lower end of the valve body, the air inlet is connected to the valve body through a cavity A, the working port is connected to the valve body through a cavity B, a piston cavity is provided in the valve body and is connected to the A cavity and the B cavity respectively, a piston assembly is provided in the piston cavity, the piston assembly comprises a valve stem, a sealing plug is provided at the lower end of the valve stem, and a piston is provided on the valve stem, a solenoid valve is connected to the top end of the valve body, the solenoid valve is cooperatively connected to the valve stem, a pilot head is provided on the solenoid valve, a pilot port is provided on the valve body, and the pilot port is connected to the solenoid valve.

[0005] The following improvement is made in the present application: a valve port is provided between the inner wall of cavity A and the bottom of the piston cavity, and the diameter of the plug is larger than the diameter of the valve port. The valve port is sealed by the plug to isolate the communication between cavity A and the piston cavity.

[0006] The following improvement is made in the solution of the present application: the communication port between the B chamber and the piston chamber is vertically arranged to the valve port.

[0007] The following improvement is made in the solution of the present application: an exhaust port is provided on a side of the valve body opposite to the pilot port, and the exhaust port is communicated with the piston chamber.

[0008] The following improvements are made in the present application: the air inlet and the working port are arranged relative to each other, the air inlet is connected to a first pipe, the working port is connected to a second pipe, and the pilot port is connected to a third pipe, and the second pipe and the third pipe are both arranged in an L-shaped structure.

[0009] The following improvement is made in the solution of the present application: a return spring is sleeved on the outside of the valve stem, one end of the return spring is connected to the inner wall of the piston cavity, and the other end is connected to the top end of the piston.

[0010] Compared with the prior art, the utility model provides a solenoid control valve for a toilet cleaner, which has the following features:

[0011] Beneficial effects:

[0012] The utility model realizes effective control of the connection between the air inlet and the working port through the coordinated arrangement between the valve body, the solenoid valve and the piston assembly, simplifies the internal pipeline of the valve chamber to the greatest extent, avoids confusion, makes the gas pressure inside the valve body always stable, and ensures the normal opening and closing of the air inlet pipeline; the gas enters from the air inlet, at which time the sealing plug seals the valve port, the gas stays in the A chamber, the pilot head is energized, the solenoid valve is opened, the gas in the pilot port is controlled by the solenoid valve, the gas realizes the upward movement of the piston through the internal gas path, thereby driving the valve stem and the sealing plug to move upward and compress the reset spring, the valve port is opened, the gas in the A chamber enters the B chamber through the piston chamber and then flows out from the working port, then the pilot head is de-energized, the solenoid valve is disconnected, the valve stem is reset by the reaction force of the spring, driving the sealing plug to move downward to seal the valve port, and the remaining gas in the piston chamber can flow out through the exhaust port. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 It is a side view of the utility model.

[0016] In the figure: 1. valve body; 11. air inlet; 12. working port; 13. A chamber; 14. B chamber; 15. piston chamber; 16. pilot port; 17. valve port; 18. exhaust port; 2. valve stem; 21. plug; 22. piston; 23. return spring; 3. solenoid valve; 31. pilot head; 4. first pipeline; 5. second pipeline; 6. third pipeline. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiment of the present invention will be described below in conjunction with the accompanying drawings in the embodiment of the present invention:

[0018] like Figure 1-3As shown, a solenoid control valve for toilet cleaning is mainly composed of a valve body 1, a piston assembly and a solenoid valve 3; a piston chamber 15 is provided in the valve body 1, and an air inlet 11 and a working port 12 are opened at the lower end of the valve body 1, wherein the air inlet 11 is connected to the valve body 1 through an A chamber 13, and the working port 12 is connected to the valve body 1 through a B chamber 14, the air inlet 11 and the working port 12 are arranged opposite to each other, the air inlet 11 is connected to a first pipe 4, the working port 12 is connected to a second pipe 5, the pilot port 16 is connected to a third pipe 6, and the second pipe 5 and the third pipe 6 are both arranged in an L-shaped structure; an exhaust port 18 is also opened on the side of the valve body 1 opposite to the pilot port 16, and the exhaust port 18 is connected to the piston chamber 15.

[0019] The piston chamber 15 is connected to the A chamber 13 and the B chamber 14, wherein a valve port 17 is provided between the inner wall of the A chamber 13 and the bottom of the piston chamber 15, the piston chamber 15 is connected to the A chamber 13 through the valve port 17, and the connecting port between the B chamber 14 and the piston chamber 15 is vertically arranged to the valve port 17; at the same time, the diameter of the plug 2 is larger than the diameter of the valve port 17, so that the plug 2 seals the valve port 17 and isolates the connection between the A chamber 13 and the piston chamber 15.

[0020] A piston assembly is provided in the piston chamber 15, and the piston assembly includes a valve stem 2, a sealing plug 21 is provided at the lower end of the valve stem 2, and a piston 22 is provided on the valve stem 2. At the same time, a solenoid valve 3 is connected to the top of the valve body 1 through a transition plate. The solenoid valve 3 is cooperatively connected to the valve stem 2, and a return spring 23 is provided on the outer sleeve of the valve stem 2. One end of the return spring 23 is connected to the inner wall of the piston chamber 15, and the other end is connected to the top of the piston 22; a pilot head 31 is provided on the solenoid valve 3, and a pilot port 16 is provided on the valve body 1, and the pilot port 16 is connected to the solenoid valve 3.

[0021] Working principle: gas enters from the air inlet 11, at this time the plug 21 seals the valve port 17, the gas stays in the A chamber 13, the pilot head 31 is energized, the solenoid valve 3 is opened, and the gas in the pilot port 16 is controlled by the solenoid valve 3. The gas moves the piston 22 upward through the internal gas path, thereby driving the valve stem 2 and the plug 21 to move upward and compress the reset spring 23. The valve port 17 is opened, and the gas in the A chamber 13 enters the B chamber 14 through the piston chamber 15 and then flows out from the working port 12. Then the pilot head 31 is de-energized, the solenoid valve 3 is disconnected, and the valve stem 2 is reset by the reaction force of the spring, driving the plug 21 to move downward to seal the valve port 17. The remaining gas in the piston chamber 15 can flow out through the exhaust port 18.

[0022] The above embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A solenoid control valve for a toilet, comprising a valve body (1), characterized in that: The valve body (1) is provided with an air inlet (11) and a working port (12) at the lower end thereof. The air inlet (11) is connected to the valve body (1) through a cavity A (13), and the working port (12) is connected to the valve body (1) through a cavity B (14). The valve body (1) is provided with a piston cavity (15) which is connected to the cavity A (13) and the cavity B (14) respectively. The piston cavity (15) is provided with a piston assembly. The piston assembly comprises a valve stem (2). A sealing plug (21) is provided at the lower end of the valve stem (2), and a piston (22) is provided on the valve stem (2). The top end of the valve body (1) is connected to a solenoid valve (3). The solenoid valve (3) is connected to the valve stem (2). A pilot head (31) is provided on the solenoid valve (3). The valve body (1) is provided with a pilot port (16), and the pilot port (16) is connected to the solenoid valve (3).

2. The solenoid control valve for toilet cleaning according to claim 1, characterized in that: A valve port (17) is provided between the inner wall of the A chamber (13) and the bottom of the piston chamber (15), and the diameter of the sealing plug (21) is larger than the diameter of the valve port (17).

3. The solenoid control valve for toilet cleaning according to claim 2, characterized in that: The communication port between the B chamber (14) and the piston chamber (15) is arranged vertically to the valve port (17).

4. The solenoid control valve for toilet cleaning according to claim 1, characterized in that: An exhaust port (18) is provided on a side of the valve body (1) opposite to the pilot port (16), and the exhaust port (18) is communicated with the piston chamber (15).

5. The solenoid control valve for toilet cleaning according to claim 1, characterized in that: The air inlet (11) and the working port (12) are arranged opposite to each other; the air inlet (11) is connected to a first pipeline (4); the working port (12) is connected to a second pipeline (5); the pilot port (16) is connected to a third pipeline (6); the second pipeline (5) and the third pipeline (6) are both arranged in an L-shaped structure.

6. The solenoid control valve for toilet cleaning according to claim 1, characterized in that: The valve stem (2) is externally sleeved with a return spring (23), one end of the return spring (23) is connected to the inner wall of the piston cavity (15), and the other end is connected to the top end of the piston (22).

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