Electromagnetic switch valve with protection structure

Abstract

The utility model relates to the technical field of electromagnetic valves, and discloses an electromagnetic switch valve with a protection structure, which comprises a main body structure, a switch assembly is arranged at the upper end of the main body structure and fixedly connected with an electromagnetic assembly, and a pressure reduction assembly is arranged at the bottom end of the main body structure. The water inlet and the water outlet at the two ends of the cavity are communicated with the water inlet pipe and the water outlet pipe respectively, the connector is connected with the corresponding wire, the coil is powered on, the iron core generates electromagnetic force, the water inlet is communicated with the water outlet, and then the electromagnetic valve is opened. When power is cut off, the electromagnet is powered off, the electromagnetic force disappears, the armature is separated from the electromagnet, and then the electromagnetic valve is closed. And after the electromagnetic valve is opened, the pressure is too large when the water flow flows out, the one-way plug downwards extrudes the second spring and moves downwards along the cylinder, the water flow enters the pressure reduction cavity, then enters the backflow pipe and finally flows back to the side, where the outlet is located, of the cavity, the pressure in equipment is buffered, and the equipment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, and more specifically to an electromagnetic on-off valve with a protection structure. Background Art

[0002] A solenoid valve is an industrial device operated by electromagnetic force. As a basic component in automation technology, it belongs to the category of actuators. The application scope of this device extends far beyond hydraulic and pneumatic systems. In the process of industrial automation, solenoid valves are very commonly used. They are installed in industrial control systems to regulate the flow direction, flow rate, speed, and other related parameters of the medium. Solenoid valves can perform operations such as opening and closing valves and necessary adjustment actions, so as to control the flow direction of the medium in the pipeline and achieve the functions of switching or adjustment. Existing electromagnetic on-off valves have some deficiencies in the event of a power outage or an emergency. Firstly, when the power supply is interrupted or an emergency occurs, these valves cannot quickly reset and close, which may lead to ineffective control of the fluid in the system. Secondly, when the pressure in the system is relatively high, existing electromagnetic on-off valves cannot effectively regulate the pressure to reach the appropriate working level of the equipment. Summary of the Utility Model

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides an electromagnetic on-off valve with a protection structure to solve the problems existing in the above background art.

[0004] The utility model provides the following technical solution: An electromagnetic on-off valve with a protection structure includes a main body structure. A switch assembly is arranged at the upper end of the main body structure. The switch assembly is fixedly connected with an electromagnetic assembly. A pressure reducing assembly is arranged at the bottom end of the main body structure. The switch assembly includes a solenoid valve cover, a sealing sleeve, a fixing block, a stainless steel plug, a sealing ring, a first spring, and a support block. Among them, the solenoid valve cover is fixedly sleeved in the middle of the upper end of the cavity through the sealing sleeve. The bottom of the solenoid valve cover is fixedly connected with the fixing block. The middle of the fixing block is movably sleeved with the stainless steel plug. The stainless steel plug is movably sleeved with the support block. The bottom end of the support block is fixedly connected with a blocking plate. The top end of the stainless steel plug is fixedly connected with the sealing ring. A first spring is movably connected between the top end of the sealing ring and the upper end inside the solenoid valve cover.

[0005] Preferably, the electromagnetic assembly includes a movable column, a sleeve rod, an armature, a connecting rod, an electromagnet and a connector. The movable column is fixedly connected to the middle of the upper end of the sealing ring and is movably arranged inside the first spring. The movable column movably penetrates through the top of the solenoid valve cover to the upper end of the solenoid valve cover. The sleeve rod is fixedly connected to the top of the solenoid valve cover and movably sleeved with the movable column inside. The armature is fixedly connected to the top of the movable column. A connecting rod is arranged at the top end of the sleeve rod. An electromagnet is arranged inside the connecting rod. A connector is arranged at the upper end of the connecting rod.

[0006] Preferably, the pressure reducing assembly includes a pressure reducing chamber, a circular ring, a cylinder, a second spring, a one-way plug and a return pipe. The pressure reducing chamber is fixedly connected to one side of the bottom of the cavity near the water outlet. The upper part of the pressure reducing chamber is fixedly connected to the circular ring. The one-way plug is movably connected in the middle of the circular ring. The cylinder is movably connected to the groove at the bottom of the one-way plug. The bottom of the cylinder is fixedly connected to the bottom of the pressure reducing chamber. The second spring is movably connected to the outside of the cylinder and is movably arranged between the bottom of the pressure reducing chamber and the bottom of the one-way plug. A return pipe is arranged on one side of the pressure reducing chamber near the water outlet. The return pipe is used to connect the pressure reducing chamber and the cavity.

[0007] Preferably, the main body structure includes a cavity, a water inlet, a water outlet and a blocking plate. The water inlet is arranged at one end of the cavity. The water outlet is arranged at the other end of the cavity. The blocking plate is arranged on one side of the cavity near the water inlet.

[0008] Preferably, the switch assembly includes a solenoid valve cover, a sealing sleeve, a fixing block, a stainless steel plug, a sealing ring, a first spring and a supporting block. The stainless steel plug is adapted to the through hole in the middle of the fixing block.

[0009] The technical effects and advantages of the present utility model:

[0010] The water inlet and the water outlet at both ends of the cavity are respectively connected to the water inlet pipe and the water outlet pipe. The connector is connected to the corresponding wire. The electromagnet generates electromagnetic force through the energization of the coil on its surface, connects the water inlet and the water outlet, and then opens the solenoid valve. When the power is off, the coil on the surface of the electromagnet is powered off, the electromagnetic force disappears, the armature is separated from the electromagnet, and then the solenoid valve is closed, effectively controlling the water flow. When the solenoid valve is opened, when the water flow pressure is too high during outflow, the one-way plug is pressed downward against the second spring and moves downward along the cylinder. The water flow enters the pressure reducing chamber and then enters the return pipe, and finally flows back to the side of the cavity outlet, buffering the pressure inside the device and playing a protective role for the device. Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0012] Figure 2 It is a schematic cross-sectional view of the overall structure of the present utility model.

[0013] Figure 3 is Figure 2 The structural schematic diagram of part A in

[0014] Figure 4 is Figure 2 The structural schematic diagram of part B in

[0015] The attached drawing reference numerals are: 1, main body structure; 101, cavity; 102, water inlet; 103, water outlet; 104, blocking plate; 2, switch assembly; 201, solenoid valve cover; 202, sealing sleeve; 203, fixing block; 204, stainless steel plug; 205, sealing ring; 206, first spring; 207, support block; 3, electromagnetic assembly; 301, movable column; 302, sleeve rod; 303, armature; 304, connecting rod; 305, electromagnet; 306, connector; 4, pressure reducing assembly; 401, pressure reducing cavity; 402, ring; 403, cylinder; 404, second spring; 405, one-way plug; 406, return pipe. Detailed implementation manners

[0016] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the attached drawings in the present utility model. In addition, the forms of each structure described in the following implementation manners are only examples. An electromagnetic switch valve with a protection structure involved in the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0017] Refer to Figure 1 and Figure 2 , the present utility model provides an electromagnetic switch valve with a protection structure, including a main body structure 1. A switch assembly 2 is arranged at the upper end of the main body structure 1. The switch assembly 2 is fixedly connected with an electromagnetic assembly 3. A pressure reducing assembly 4 is arranged at the bottom end of the main body structure 1;

[0018] As Figure 1 and Figure 2 shown, the main body structure 1 includes a cavity 101, a water inlet 102, a water outlet 103 and a blocking plate 104. One end of the cavity 101 is provided with the water inlet 102, the other end of the cavity 101 is provided with the water outlet 103, and a blocking plate 104 is arranged on one side of the cavity 101 close to the water inlet 102;

[0019] As Figure 1 , Figure 2 and Figure 3As shown in the figure, the switch assembly 2 includes a solenoid valve cover 201, a sealing sleeve 202, a fixing block 203, a stainless steel plug 204, a sealing ring 205, a first spring 206 and a support block 207. The solenoid valve cover 201 is fixedly sleeved on the middle of the upper end of the cavity 101 through the sealing sleeve 202. The bottom of the solenoid valve cover 201 is fixedly connected to the fixing block 203. The middle of the fixing block 203 is movably sleeved with the stainless steel plug 204. The stainless steel plug 204 is movably sleeved with the support block 207. The bottom end of the support block 207 is fixedly connected to the blocking plate 104 to block the water flow and allow the water flow to pass through the top of the support block 207, facilitating water flow control. The support block 207 is located below the fixing block 203 and is spaced from the fixing block 203. The stainless steel plug 204 is adapted to the through hole in the middle of the fixing block 203. The top end of the stainless steel plug 204 is fixedly connected to the sealing ring 205. The top end of the sealing ring 205 is movably connected to the first spring 206 between the upper end inside the solenoid valve cover 201. The performance and stability of the first spring 206 in resisting corrosion, high temperature and low temperature well maintain the normal operation of the structure;

[0020] As Figure 1 and Figure 2 shown in the figure, the electromagnetic assembly 3 includes a movable column 301, a sleeve rod 302, an armature 303, a connecting rod 304, an electromagnet 305 and a connecting head 306. The movable column 301 is fixedly connected to the middle of the upper end of the sealing ring 205 and is movably arranged inside the first spring 206. The movable column 301 movably penetrates through the top of the solenoid valve cover 201 to the upper end of the solenoid valve cover 201. The sleeve rod 302 is fixedly connected to the top of the solenoid valve cover 201 and the movable column 301 is movably sleeved inside it. The top of the movable column 301 is fixedly connected to the armature 303. The top end of the sleeve rod 302 is provided with a connecting rod 304. An electromagnet 305 is arranged inside the connecting rod 304. The electromagnet 305 includes an iron core and a coil wound around its surface. Electromagnetic force is generated by controlling the current in the energized coil. The upper end of the connecting rod 304 is provided with a connecting head 306;

[0021] As Figure 1 、 Figure 2 and Figure 4As shown in the figure, the pressure reducing assembly 4 includes a pressure reducing chamber 401, a circular ring 402, a cylinder 403, a second spring 404, a one-way plug 405 and a return pipe 406. The pressure reducing chamber 401 is fixedly connected to the bottom of the cavity 101 near one side of the water outlet 103. The upper part of the pressure reducing chamber 401 is fixedly connected to the circular ring 402. The one-way plug 405 is movably connected in the middle of the circular ring 402. A groove is provided at the bottom end of the one-way plug 405. The cylinder 403 is movably connected in the bottom groove of the one-way plug 405. The bottom of the cylinder 403 is fixedly connected to the bottom of the pressure reducing chamber 401. The second spring 404 is movably connected to the outside of the cylinder 403 and is movably arranged between the bottom of the pressure reducing chamber 401 and the bottom of the one-way plug 405. A return pipe 406 is provided on one side of the pressure reducing chamber 401 close to the water outlet 103. The return pipe 406 is used to connect the pressure reducing chamber 401 and the cavity 101.

[0022] The working principle of the present utility model:

[0023] During use, the water inlet 102 and the water outlet 103 at both ends of the cavity 101 are respectively connected to the water inlet pipe and the water outlet pipe. The connecting head 306 is connected to the corresponding wire. The opening and closing of the solenoid valve are controlled by an external control member. The electromagnet 305 includes an iron core and a coil wound around its surface. An electromagnetic force is generated by controlling the current in the energized coil. The movable column 301 pulls the sealing ring 205 to squeeze the first spring 206 so that the armature 303 is attracted to the electromagnet 305. Thus, the stainless steel plug 204 moves upward together with 208, connecting the water inlet 102 and the water outlet 103, and then opening the solenoid valve. When the power is off, the coil on the surface of the electromagnet 305 is powered off, and the electromagnetic force disappears. The armature 303 is separated from the electromagnet 305. Under the action of the spring, the movable column 301, the sealing ring 205, and the stainless steel plug 204 return to their original positions, and then the solenoid valve is closed, effectively controlling the water flow. When the solenoid valve is opened, when the water flow pressure is too high during outflow, the one-way plug 405 is squeezed downward to compress the second spring 404 and moves downward along the cylinder 403. The water flow enters the pressure reducing chamber 401 and then enters the return pipe 406, and finally flows back to the outlet side of the cavity 101, buffering the pressure inside the device and playing a protective role for the device.

[0024] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0025] Secondly: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electromagnetic switching valve with a protection structure, comprising a main body structure (1), characterized in that: A switch assembly (2) is provided at the upper end of the main body structure (1), the switch assembly (2) is fixedly connected to the electromagnetic assembly (3), and a pressure reducing assembly (4) is provided at the bottom end of the main body structure (1); the switch assembly (2) includes a solenoid valve cover (201), a sealing sleeve (202), a fixing block (203), a stainless steel plug (204), a sealing ring (205), a first spring (206) and a support block (207), wherein the solenoid valve cover (201) is fixedly sleeved in the middle of the upper end of the cavity (101) through the sealing sleeve (202), the bottom of the solenoid valve cover (201) is fixedly connected to the fixing block (203), the middle of the fixing block (203) is movably sleeved with the stainless steel plug (204), the stainless steel plug (204) is movably sleeved with the support block (207), the bottom end of the support block (207) is fixedly connected to the blocking plate (104), the top end of the stainless steel plug (204) is fixedly connected to the sealing ring (205), and a first spring (206) is movably connected between the top of the sealing ring (205) and the upper end inside the solenoid valve cover (201).

2. The electromagnetic switching valve with a protection structure according to claim 1, characterized in that: The electromagnetic assembly (3) includes a movable column (301), a sleeve rod (302), an armature (303), a connecting rod (304), an electromagnet (305) and a connecting head (306), wherein the movable column (301) is fixedly connected to the middle of the upper end of the sealing ring (205) and is movably arranged inside the first spring (206), the movable column (301) movably penetrates through the top of the solenoid valve cover (201) to the upper end of the solenoid valve cover (201), the sleeve rod (302) is fixedly connected to the top of the solenoid valve cover (T01) and the movable column (301) is movably sleeved inside it, the top of the movable column (301) is fixedly connected to the armature (303), a connecting rod (304) is arranged at the top end of the sleeve rod (302), an electromagnet (305) is arranged inside the connecting rod (304), and a connecting head (306) is arranged at the upper end of the connecting rod (304).

3. The electromagnetic switch valve with a protection structure according to claim 1, characterized in that: The pressure reducing assembly (4) includes a pressure reducing chamber (401), a ring (402), a cylinder (403), a second spring (404), a one-way plug (405) and a return pipe (406), wherein the pressure reducing chamber (401) is fixedly connected to one side of the bottom of the cavity (101) near the water outlet (103), the upper part of the pressure reducing chamber (401) is fixedly connected to the ring (402), the one-way plug (405) is movably connected in the middle of the ring (402), the cylinder (403) is movably connected in the bottom groove of the one-way plug (405), the bottom of the cylinder (403) is fixedly connected to the bottom of the pressure reducing chamber (401), the second spring (404) is movably connected to the outside of the cylinder (403) and the second spring (404) is movably arranged between the bottom of the pressure reducing chamber (401) and the bottom of the one-way plug (405), a return pipe (406) is arranged on one side of the pressure reducing chamber (401) near the water outlet (103), and the return pipe (406) is used to connect the pressure reducing chamber (401) and the cavity (101).

4. An electromagnetic switching valve with a protection structure according to claim 1, characterized in that: The main body structure (1) includes a cavity (101), a water inlet (102), a water outlet (103) and a blocking plate (104). One end of the cavity (101) is provided with the water inlet (102), the other end of the cavity (101) is provided with the water outlet (103), and the blocking plate (104) is arranged on one side of the cavity (101) close to the water inlet (102).

5. The electromagnetic switch valve with a protection structure according to claim 1, characterized in that: The switch assembly (2) includes a solenoid valve cover (201), a sealing sleeve (202), a fixing block (203), a stainless steel plug (204), a sealing ring (205), a first spring (206) and a support block (207). The stainless steel plug (204) is adapted to the through hole in the middle of the fixing block (203).

Images