Anti-blocking diaphragm electromagnetic valve

Abstract

The anti-blocking diaphragm electromagnetic valve comprises a valve seat and an electric control seat, a valve hole seat is integrally formed in the valve seat, a valve cavity is formed in the valve hole seat, a valve hole is formed in one end of the valve cavity, the electric control seat is connected to the side, close to the valve hole, of the valve seat, and a movable iron core is slidably connected to the interior of the electric control seat in a matched mode. A diaphragm is arranged at the joint of the valve seat and the electric control seat, and the movable iron core abuts against the sealing valve hole. The piston is pushed through the pressure applying port of the elastic cavity cover, so that the cleaning rod is inserted into the valve hole in a matched mode for dredging, and smoothness of a water path is guaranteed under the condition that disassembly is not needed.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to an anti-clogging diaphragm electromagnetic valve. Background Technology

[0002] Diaphragm solenoid valves are widely used in environments controlling corrosive fluids. The valve has a sealed cavity inside, and the diaphragm is typically connected to the moving iron core of the electromagnet. Under the alternating action of electromagnetic force and return spring force, the diaphragm reciprocates along the axis of the moving iron core, thus opening and closing the valve. For example, application number CN202223096419.0 discloses a miniature diaphragm solenoid valve, including a valve body with a shell at the bottom. Inside the shell is a solenoid valve core assembly extending into the valve body, a sealing connector on the solenoid valve core assembly, a diaphragm between the sealing connector and the solenoid valve core assembly, and a rigid support for supporting the diaphragm. The solenoid valve core assembly includes a coil winding housing installed inside the shell. The sealing connector in this device has a sealing gasket at the top to block the internal through-hole of the valve body. However, if the diameter of the internal through-hole of the solenoid valve body is too small, it is prone to blockage after long-term use, requiring disassembly and cleaning of the valve body, which is cumbersome. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes an anti-clogging diaphragm solenoid valve, which more precisely solves the problems described above.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes an anti-clogging diaphragm solenoid valve, including a valve seat and an electric control base. The valve seat has an integrally formed valve hole seat with a valve cavity inside. One end of the valve cavity has a valve hole. An inlet cavity is formed inside the valve seat and around the valve hole. One side of the valve seat has an outlet port communicating with the valve cavity, and another side has an inlet port communicating with the inlet cavity. An electric control base is connected to the side of the valve seat near the valve hole. A movable iron core is slidably connected inside the electric control base. A diaphragm is provided at the connection between the valve seat and the electric control base. The movable iron core abuts against and seals the valve hole. A connecting seat is provided on the side near the movable iron core, and the connecting seat is connected to one end of the movable iron core. A coil is provided inside the electrical control seat and along the outer periphery of the movable iron core. A pressure spring is provided in the inner cavity of the electrical control seat, and the pressure spring abuts against the end of the movable iron core away from the diaphragm. A cleaning structure is provided on the outer side of the valve seat. The cleaning structure includes a spring cavity opened inside the valve seat and located outside the valve cavity. A piston is slidably connected inside the spring cavity. The piston is connected to a cleaning rod, which penetrates into the valve cavity. A spring cavity cover is connected to the outer port of the spring cavity, and a pressure port is opened in the middle of the spring cavity cover.

[0006] Furthermore, the diaphragm is preferably a corrosion-resistant metal elastic diaphragm, and the diaphragm has pressure holes.

[0007] Furthermore, a pressurized inner cavity is reserved on the side of the diaphragm away from the water inlet cavity, and the pressurized inner cavity is connected to the water inlet cavity through a pressurized hole.

[0008] Furthermore, the sliding direction of the piston is consistent with the channel direction of the valve chamber, and the cleaning rod corresponds to the position of the valve hole.

[0009] Furthermore, a return spring is provided inside the spring cavity, and the return spring abuts against one side of the piston.

[0010] Furthermore, the outer wall of the piston is provided with piston rings, and the piston rings slide in contact with the inner cavity of the spring chamber.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model controls the movement of a movable iron core by electromagnetic force when the control coil is energized. This causes the movable iron core to pull the diaphragm through the connecting seat, thereby causing the diaphragm to detach from the valve hole and allow water to flow. When the power is stopped, the movable iron core slides back to its original position under the action of the pressure spring, thereby causing the diaphragm to re-close the valve hole. Furthermore, when the water inlet is continuously pressurized, the water inlet cavity achieves pressure balance with the pressurized cavity through the pressurization hole, thereby preventing the diaphragm from being pushed open and ensuring the sealing of the water circuit.

[0013] 2. This utility model pushes the piston through the pressure port of the spring cavity cover, so that the cleaning rod can be inserted into the valve hole for unblocking, ensuring the smooth flow of water without disassembly. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the valve seat in this utility model.

[0016] In the diagram: 1. Valve seat; 101. Valve hole seat; 1011. Valve hole; 1012. Valve cavity; 102. Water outlet; 103. Water inlet; 104. Water inlet cavity; 105. Cleaning structure; 1051. Spring cavity; 1052. Piston; 1053. Cleaning rod; 1054. Spring cavity cover; 1055. Return spring; 2. Electrical control base; 201. Diaphragm; 2011. Pressurization hole; 2012. Connecting base; 202. Movable iron core; 203. Pressure spring; 204. Coil.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1

[0020] A diaphragm solenoid valve for preventing clogging includes a valve seat 1 and an electric control seat 2. The valve seat 1 has an integrally formed valve hole seat 101, with a valve cavity 1012 inside. One end of the valve cavity 1012 has a valve hole 1011. An inlet cavity 104 is formed inside the valve seat 1 and around the valve hole 1011. One side of the valve seat 1 has an outlet port 102 communicating with the valve cavity 1012, and another side has an inlet port 103 communicating with the inlet cavity 104. The electric control seat 2 is connected to the side of the valve seat 1 near the valve hole 1011. A movable iron core 202 is slidably connected inside the electric control seat 2. A diaphragm 201 is provided at the connection between the valve seat 1 and the electric control seat 2, and the movable iron core 202 abuts against the sealing valve. A connecting seat 2012 is provided on the side of the diaphragm 201 near the movable iron core 202, and the connecting seat 2012 is connected to one end of the movable iron core 202. A coil 204 is provided inside the electric control seat 2 and along the outer periphery of the movable iron core 202. A pressure spring 203 is provided in the inner cavity of the electric control seat 2, and the pressure spring 203 abuts against the end of the movable iron core 202 away from the diaphragm 201. The diaphragm 201 is preferably a corrosion-resistant metal elastic diaphragm. When the control coil 204 is energized, the movable iron core 202 is driven to slide by electromagnetic force, so that the movable iron core 202 pulls the diaphragm 201 through the connecting seat 2012, thereby causing the diaphragm 201 to break away from the closure of the valve hole 1011 and realize water flow.

[0021] A pressurizing hole 2011 is provided on the diaphragm 201. A pressurizing cavity is reserved on the side of the diaphragm 201 away from the water inlet cavity 104. The pressurizing cavity is connected to the water inlet cavity 104 through the pressurizing hole 2011. When the power is stopped, the movable iron core 202 slides back to its original position under the action of the pressure spring 203, so that the diaphragm 201 re-closes the valve hole 1011. When the water inlet interface 103 is continuously pressurized, the water inlet cavity 104 achieves pressure balance with the pressurizing cavity through the pressurizing hole 2011, thereby preventing the diaphragm 201 from being pushed open.

[0022] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: When the control coil 204 is energized, the movable iron core 202 is driven to slide by electromagnetic force, thereby causing the movable iron core 202 to pull the diaphragm 201 through the connecting seat 2012, thereby causing the diaphragm 201 to disengage from the valve hole 1011 and realize water flow. When the power is stopped, the movable iron core 202 slides back to its original position under the action of the pressure spring 203, thereby causing the diaphragm 201 to re-close the valve hole 1011. Furthermore, when the water inlet 103 is continuously pressurized, the water inlet cavity 104 achieves pressure balance with the pressurized cavity through the pressurization hole 2011, thereby preventing the diaphragm 201 from being pushed open and ensuring the sealing of the water circuit.

[0023] Example 2

[0024] A cleaning structure 105 is provided on the outer side of the valve seat 1. The cleaning structure 105 includes a spring cavity 1051 opened inside the valve seat 1 and located outside the valve cavity 1012. A piston 1052 is slidably connected inside the spring cavity 1051. A cleaning rod 1053 is connected to the piston 1052 and extends into the valve cavity 1012. The sliding direction of the piston 1052 is consistent with the channel direction of the valve cavity 1012. The cleaning rod 1053 is positioned corresponding to the valve hole 1011. A spring cavity cover 1054 is connected to the outer port of the spring cavity 1051. A pressure port is opened in the middle of the spring cavity cover 1054. A return spring 1055 is provided inside the spring cavity 1051, and the return spring 1055 abuts against one side of the piston 1052. The piston 1052 is pushed through the pressure port of the spring cavity cover 1054, so that the cleaning rod 1053 is inserted into the valve hole 1011 to clear the blockage and prevent the valve hole 1011 from becoming blocked. When the pressure on the piston 1052 is released, the piston 1052 rebounds under the action of the return spring 1055.

[0025] The piston 1052 has piston rings on its outer wall, and the piston rings slide in contact with the inner cavity of the cartridge cavity 1051 to ensure the sealing of the connection between the piston 1052 and the cartridge cavity 1051.

[0026] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: the present invention pushes the piston 1052 through the pressure port of the spring cavity cover 1054, so that the cleaning rod 1053 cooperates with the insertion of the valve hole 1011 to unclog, ensuring the smooth flow of water without disassembly.

[0027] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. Anti-clogging diaphragm solenoid valve comprising a valve seat (1) and an electrically controlled seat (2), characterized in that, The valve seat (1) is integrally formed with a valve hole seat (101) inside, the valve hole seat (101) is provided with a valve cavity (1012) inside, the valve cavity (1012) is provided with a valve hole (1011) at one end, the valve seat (1) is provided with a water inlet inner cavity (104) inside and at the outer periphery of the valve hole (1011), the valve seat (1) is provided with a water outlet interface (102) on one side and connected with the valve cavity (1012), the valve seat (1) is provided with a water inlet interface (103) on one side and connected with the water inlet inner cavity (104), the valve seat (1) is connected with an electric control seat (2) on the side close to the valve hole (1011), the electric control seat (2) is movably connected with a movable iron core (202) inside, the valve seat (1) and the electric control seat (2) are provided with a diaphragm (201) at the connection, the movable iron core (202) abuts against the valve hole (1011), the diaphragm (201) is provided with a connecting seat (2012) on the side close to the movable iron core (202), and one end of the connecting seat (2012) is connected with the movable iron core (202), the electric control seat (2) is provided with a coil (204) inside and along the outer periphery of the movable iron core (202), the inner cavity of the electric control seat (2) is provided with a pressure spring (203), and one end of the pressure spring (203) abuts against the movable iron core (202) away from the diaphragm (201), the outer side of the valve seat (1) is provided with a cleaning structure (105), the cleaning structure (105) comprises a bullet cavity (1051) provided in the valve seat (1) and located outside the valve cavity (1012), the bullet cavity (1051) is movably connected with a piston (1052) inside, the piston (1052) is connected with a cleaning rod (1053), and the cleaning rod (1053) penetrates into the valve cavity (1012), the outer port of the bullet cavity (1051) is connected with a bullet cavity cover (1054), and the bullet cavity cover (1054) is provided with a pressure passage in the middle.

2. The anti-clogging diaphragm solenoid valve according to claim 1, characterized by The diaphragm (201) is a corrosion-resistant metal elastic diaphragm, and the diaphragm (201) is provided with a pressure hole (2011).

3. The anti-clogging diaphragm solenoid valve according to claim 1, characterized by, The diaphragm (201) is provided with a pressure cavity on the side away from the water inlet inner cavity (104), and the pressure cavity is connected with the water inlet inner cavity (104) through the pressure hole (2011).

4. The anti-clogging diaphragm solenoid valve according to claim 1, characterized by The sliding direction of the piston (1052) is consistent with the channel direction of the valve cavity (1012), and the cleaning rod (1053) corresponds to the position of the valve hole (1011).

5. The anti-clogging diaphragm solenoid valve according to claim 1, wherein The bullet cavity (1051) is provided with a reset spring (1055) inside, and the reset spring (1055) abuts against one side of the piston (1052).

6. The anti-clogging diaphragm solenoid valve according to claim 1, wherein The piston (1052) is provided with a piston ring, and the piston ring is movably connected with the bullet cavity (1051) inner cavity.

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