阅读说明：本技术 一种具有除杂功能的安全可靠性高的电磁阀 (Solenoid valve that fail safe nature is high with edulcoration function ) 是由 刘晓慧 于 2019-09-05 设计创作，主要内容包括：本发明涉及一种具有除杂功能的安全可靠性高的电磁阀,所述线圈和阀体,还包括降温机构和两个除杂机构,所述除杂机构包括固定盒、滤网、清洁组件和排渣组件,所述清洁组件包括清洁板、移动杆、移动板和两个弹簧,所述降温机构包括冷却盒、抽料泵、连接管、冷却管和循环组件,该具有除杂功能的安全可靠性高的电磁阀通过降温机构,实现了对线圈降温散热的功能,避免线圈烧毁,提高了线圈的安全性,通过除杂机构,实现了除杂的功能,避免杂质进入阀体内部而堵塞阀体。(The invention relates to a high-safety-reliability electromagnetic valve with an impurity removing function, which comprises a coil, a valve body, a cooling mechanism and two impurity removing mechanisms, wherein each impurity removing mechanism comprises a fixed box, a filter screen, a cleaning assembly and a slag discharging assembly, each cleaning assembly comprises a cleaning plate, a moving rod, a moving plate and two springs, each cooling mechanism comprises a cooling box, a pumping pump, a connecting pipe, a cooling pipe and a circulating assembly, and the high-safety-reliability electromagnetic valve with the impurity removing function realizes the functions of cooling and radiating the coil through the cooling mechanism, avoids the coil from being burnt, improves the safety of the coil, realizes the impurity removing function through the impurity removing mechanisms, and avoids impurities from entering the interior of the valve body to block the valve body.)

1. The electromagnetic valve with the impurity removing function and high safety and reliability is characterized by further comprising a cooling mechanism and two impurity removing mechanisms, wherein the cooling mechanism is arranged above the valve body (1), and the two impurity removing mechanisms are respectively arranged on two sides of the valve body (1);

the impurity removing mechanism comprises a fixed box (3), a filter screen (4), a cleaning assembly and a slag discharging assembly, wherein a water inlet and a water outlet are respectively formed in two sides of the fixed box (3), the fixed box (3) is fixedly connected with the valve body (1), the fixed box (3) is communicated with the valve body (1) through the water outlet, the filter screen (4) is fixed in the fixed box (3), a strip-shaped opening is formed in the lower part of the fixed box (3), the slag discharging assembly is arranged below the fixed box (3), and the cleaning assembly is arranged above the fixed box (3);

the cleaning assembly comprises a cleaning plate (5), a moving rod (6), a moving plate (7) and two springs (8), a through hole is formed in the upper portion of the fixed box (3), one end of the moving rod (6) is fixedly connected with the cleaning plate (5), the cleaning plate (5) is abutted to the filter screen (4), the other end of the moving rod (6) penetrates through the through hole to be arranged outside the fixed box (3), the other end of the moving rod (6) is fixedly connected with the moving plate (7), the two springs (8) are respectively arranged at two ends of one side, close to the fixed box (3), of the moving plate (7), and two ends of the springs (8) are respectively connected with the moving plate (7) and the fixed box (3);

cooling mechanism includes cooling box (18), pump (19), connecting pipe, cooling tube (20) and circulation subassembly, cooling box (18) and pump (19) are all fixed on valve body (1), pump (19) are through connecting pipe and cooling box (18) intercommunication, pump (19) and the one end intercommunication of cooling tube (20), cooling tube (20) winding is on coil (2), cooling tube (20) distribute along the axis spiral of coil (2), the other end of cooling tube (20) passes through circulation subassembly and is connected with cooling box (18), be equipped with the coolant liquid in cooling box (18), pump (19) are connected with the PLC electricity.

2. The electromagnetic valve with the impurity removing function and high safety and reliability as claimed in claim 1, wherein the circulation assembly comprises a circulation pump (23), a first connecting pipe (22), a second connecting pipe (21), a cooling pipe (24), a cooling box (25) and a support column, the circulation pump (23) is fixed above the cooling box (18), the circulation pump (23) is communicated with one end of the cooling pipe (24) through the first connecting pipe (22), the other end of the cooling pipe (24) is communicated with one end of the second connecting pipe (21), the other end of the second connecting pipe (21) is communicated with one end of the cooling pipe (20) far away from the material pumping pump (19), the cooling box (25) is fixed on the valve body (1) through the support column, both sides of the cooling box (25) are provided with through holes, the cooling pipe (24) passes through two through holes, the cooling box (25) is internally provided with cooling water, the upper part and the lower part of the cooling box (25) are respectively provided with a water filling port and a water outlet, and the circulating pump (23) is electrically connected with the PLC.

3. The electromagnetic valve with the impurity removing function and high safety and reliability as claimed in claim 1, wherein the cleaning assembly further comprises two guide rods (9), small holes are formed in both ends of the moving plate (7), the small holes correspond to the guide rods (9) one to one, one ends of the guide rods (9) are vertically fixed above the fixed box (3), the other ends of the guide rods (9) penetrate through the small holes, and the moving plate (7) is connected with the guide rods (9) in a sliding mode.

4. The solenoid valve with impurity removing function and high safety and reliability as claimed in claim 3, wherein the cleaning assembly further comprises two fixing plates (10), the fixing plates (10) correspond to the guide rods (9) one by one, and one end of each guide rod (9) far away from the fixing box (3) is fixedly connected with the fixing plate (10).

5. The electromagnetic valve with impurity removal function and high safety and reliability as claimed in claim 1, wherein the slag discharge assembly comprises a block (11), a connecting plate (12) and two moving units, the two moving units are respectively arranged at two sides of the fixed box (3), the block (11) is arranged inside the strip-shaped opening, the block (11) is matched with the strip-shaped opening, the block (11) is fixedly connected with the connecting plate (12), the moving units comprise a bearing, a screw rod (15), a knob (14), a sliding block (16) and a connecting rod (13), the bearing is fixedly connected with the fixed box (3), two ends of the screw rod (15) are respectively fixedly connected with an inner ring of the bearing and the knob (14), the sliding block (16) is sleeved on the screw rod (15), a connecting part of the sliding block (16) and the screw rod (15) is provided with a thread matched with the screw rod (15), two ends of the connecting rod (13) are respectively fixedly connected with one side of the connecting plate (12) close to the fixing box (3) and the sliding block (16).

6. The solenoid valve with impurity removing function and high safety and reliability as claimed in claim 5, wherein the moving unit further comprises a slide way (17), the slide way (17) is fixedly connected with the fixing box (3), a sliding groove is arranged on one side of the slide way (17) close to the screw rod (15), the sliding groove is parallel to the screw rod (15), the sliding block (16) is arranged inside the sliding groove, the sliding block (16) is matched with the sliding groove, and the sliding block (16) is slidably connected with the sliding groove.

7. The electromagnetic valve with the impurity removing function and high safety and reliability as claimed in claim 6, wherein the sliding groove is a dovetail groove.

8. The solenoid valve with impurity removing function and high safety and reliability as claimed in claim 7, characterized in that the knob (14) is provided with anti-skid veins.

9. The solenoid valve with impurity removing function and high safety and reliability as claimed in claim 8, wherein the screw rod (15) is coated with lubricating oil.

10. The solenoid valve with impurity removing function and high safety and reliability as claimed in claim 1, wherein a temperature sensor (26) is arranged on the coil (2), and the temperature sensor (26) is electrically connected with a PLC.

Technical Field

The invention relates to the field of valve bodies, in particular to a high-safety-reliability electromagnetic valve with an impurity removal function.

Background

An Electromagnetic valve (Electromagnetic valve) is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being one-way valves, safety valves, directional control valves, speed control valves, etc.

The existing electromagnetic valve is not provided with a filtering device generally, and the situation that the impurities are blocked in the valve body is easily caused under the situation that more impurities are contained in the fluid, so that the normal work of the electromagnetic valve is influenced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the electromagnetic valve with the impurity removing function and high safety and reliability is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: the solenoid valve with the impurity removing function and high safety and reliability comprises a coil and a valve body, wherein the coil is arranged above the valve body, a control panel is arranged on the valve body, a PLC is arranged in the control panel, the solenoid valve also comprises a cooling mechanism and two impurity removing mechanisms, the cooling mechanism is arranged above the valve body, and the two impurity removing mechanisms are respectively arranged at two sides of the valve body;

the impurity removing mechanism comprises a fixing box, a filter screen, a cleaning assembly and a slag discharging assembly, wherein a water inlet and a water outlet are respectively formed in two sides of the fixing box, the fixing box is fixedly connected with the valve body, the fixing box is communicated with the valve body through the water outlet, the filter screen is fixed in the fixing box, a strip-shaped opening is formed in the lower portion of the fixing box, the slag discharging assembly is arranged below the fixing box, and the cleaning assembly is arranged above the fixing box;

the cleaning assembly comprises a cleaning plate, a moving rod, a moving plate and two springs, a through hole is formed above the fixed box, one end of the moving rod is fixedly connected with the cleaning plate, the cleaning plate is abutted against the filter screen, the other end of the moving rod penetrates through the through hole and is arranged outside the fixed box, the other end of the moving rod is fixedly connected with the moving plate, the two springs are respectively arranged at two ends of one side, close to the fixed box, of the moving plate, and two ends of the springs are respectively connected with the moving plate and the fixed box;

the cooling mechanism includes cooling box, material pumping pump, connecting pipe, cooling tube and circulation subassembly, cooling box and material pumping pump are all fixed on the valve body, the material pumping pump passes through connecting pipe and cooling box intercommunication, the material pumping pump communicates with the one end of cooling tube, the cooling tube winding is on the coil, the cooling tube distributes along the axis spiral of coil, the other end of cooling tube passes through the circulation subassembly and is connected with the cooling box, be equipped with the coolant liquid in the cooling box, the material pumping pump is connected with the PLC electricity.

As preferred, in order to realize the cyclic utilization of coolant liquid, the circulation subassembly includes circulating pump, first connecting pipe, second connecting pipe, cooling box and support column, the top at the cooling box is fixed to the circulating pump, circulating pump and cooling box intercommunication, the circulating pump is through the one end intercommunication of first connecting pipe with the cooling pipe, the other end of cooling pipe and the one end intercommunication of second connecting pipe, the other end of second connecting pipe and the one end intercommunication of keeping away from the drawing material pump of cooling pipe, the cooling box passes through the support column and fixes on the valve body, the both sides of cooling box all are equipped with the perforation, the cooling pipe passes two perforations, be equipped with the cooling water in the cooling box, the top and the below of cooling box are equipped with filler and delivery port respectively, the circulating pump is connected with the PLC electricity.

Preferably, in order to limit the moving direction of the moving plate, the cleaning assembly further comprises two guide rods, small holes are formed in the two ends of the moving plate and correspond to the guide rods one to one, one ends of the guide rods are vertically fixed above the fixed box, the other ends of the guide rods penetrate through the small holes, and the moving plate is connected with the guide rods in a sliding mode.

Preferably, in order to avoid the separation of the moving plate from the guide rod, the cleaning assembly further comprises two fixing plates, the fixing plates correspond to the guide rod one to one, and one end of the guide rod, which is far away from the fixing box, is fixedly connected with the fixing plates.

As preferred, for the impurity on the discharge filter screen, arrange the sediment subassembly and include sprue, connecting plate and two mobile unit, two mobile unit set up the both sides at fixed box respectively, the sprue sets up the inside at the bar mouth, the sprue matches with the bar mouth, sprue and connecting plate fixed connection, the mobile unit includes bearing, lead screw, knob, slider and connecting rod, bearing and fixed box fixed connection, the both ends of lead screw respectively with the inner circle and the knob fixed connection of bearing, the slider cover is established on the lead screw, the slider with the junction of lead screw be equipped with the screw thread that matches with the lead screw, the both ends of connecting rod respectively with one side and the slider fixed connection of being close to fixed box of connecting plate.

Preferably, in order to limit the moving direction of the sliding block, the moving unit further comprises a slide, the slide is fixedly connected with the fixed box, a sliding groove is formed in one side, close to the screw rod, of the slide, the sliding groove is parallel to the screw rod, the sliding block is arranged inside the sliding groove, the sliding block is matched with the sliding groove, and the sliding block is connected with the sliding groove in a sliding mode.

Preferably, in order that the sliding block is not separated from the sliding groove, the sliding groove is a dovetail groove.

Preferably, in order to facilitate the rotation of the knob, the knob is provided with anti-skid grains.

Preferably, the screw is coated with a lubricant in order to make the slider smooth.

Preferably, in order to detect the temperature of the coil, a temperature sensor is arranged on the coil, and the temperature sensor is electrically connected with the PLC.

The electromagnetic valve with the impurity removing function and high safety and reliability has the advantages that the electromagnetic valve with the impurity removing function realizes the function of cooling and radiating the coil through the cooling mechanism, the coil is prevented from being burnt, the safety of the coil is improved, compared with the existing cooling mechanism, the cooling mechanism realizes the recycling of cooling liquid, the practicability is improved, the impurity removing function is realized through the impurity removing mechanism, the phenomenon that impurities enter the valve body to block the valve body is avoided, and compared with the existing impurity removing mechanism, the impurity removing mechanism improves the convenience of cleaning the filter screen.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a high-safety and high-reliability electromagnetic valve with an impurity removal function according to the present invention;

FIG. 2 is a schematic structural diagram of an impurity removing mechanism of a high-safety and high-reliability electromagnetic valve with an impurity removing function according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic view of a connection structure of a slide block and a slide way of the electromagnetic valve with impurity removal function and high safety and reliability;

in the figure: 1. the automatic cleaning device comprises a valve body, 2 a coil, 3 a fixed box, 4 a filter screen, 5 a cleaning plate, 6 a moving rod, 7 a moving plate, 8 a spring, 9 a guide rod, 10 a fixed plate, 11 a blocking block, 12 a connecting plate, 13 a connecting rod, 14 a knob, 15 a lead screw, 16 a sliding block, 17 a slideway, 18 a cooling box, 19 a material pumping pump, 20 a cooling pipe, 21 a second connecting pipe, 22 a first connecting pipe, 23 a circulating pump, 24 a cooling pipe, 25 a cooling box and 26 a temperature sensor.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, the solenoid valve with impurity removal function and high safety and reliability comprises a coil 2 and a valve body 1, wherein the coil 2 is arranged above the valve body 1, a control panel is arranged on the valve body 1, a PLC is arranged in the control panel, the solenoid valve further comprises a cooling mechanism and two impurity removal mechanisms, the cooling mechanism is arranged above the valve body 1, and the two impurity removal mechanisms are respectively arranged at two sides of the valve body 1;

a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.

This solenoid valve that fail safe nature is high with edulcoration function has realized the radiating function of cooling down to coil 2 through cooling down the mechanism, avoids coil 2 to burn out, has improved coil 2's security, through edulcoration mechanism, has realized the function of edulcoration, avoids impurity to get into valve body 1 inside and block up valve body 1.

As shown in fig. 2-3, the impurity removing mechanism includes a fixing box 3, a filter screen 4, a cleaning assembly and a residue discharging assembly, a water inlet and a water outlet are respectively arranged at two sides of the fixing box 3, the fixing box 3 is fixedly connected with the valve body 1, the fixing box 3 is communicated with the valve body 1 through the water outlet, the filter screen 4 is fixed inside the fixing box 3, a strip-shaped opening is arranged below the fixing box 3, the residue discharging assembly is arranged below the fixing box 3, and the cleaning assembly is arranged above the fixing box 3;

the cleaning assembly comprises a cleaning plate 5, a moving rod 6, a moving plate 7 and two springs 8, a through hole is formed above the fixed box 3, one end of the moving rod 6 is fixedly connected with the cleaning plate 5, the cleaning plate 5 is abutted to the filter screen 4, the other end of the moving rod 6 penetrates through the through hole to be arranged outside the fixed box 3, the other end of the moving rod 6 is fixedly connected with the moving plate 7, the two springs 8 are respectively arranged at two ends of the moving plate 7 close to one side of the fixed box 3, and two ends of each spring 8 are respectively connected with the moving plate 7 and the fixed box 3;

fluid process water inlet gets into the inside of fixed box 3, behind the edulcoration through filter screen 4, get into the inside of valve body 1 from the delivery port again, impurity entering valve body 1 inside probability has been reduced, thereby the condition of having avoided the valve body 1 to block up takes place, when needs clean filter screen 4, the sediment subassembly work is arranged in control, thereby make the bar mouth not plugged up, artificially drive movable plate 7 again and remove to the direction that is close to fixed box 3, compression spring 8 simultaneously, drive the direction removal of cleaning plate 5 to being close to the bar mouth through carriage release lever 6, thereby scrape the impurity on the filter screen 4, and outside bar mouth department discharge fixed box 3.

As shown in fig. 1, the cooling mechanism includes a cooling box 18, a material pumping pump 19, a connecting pipe, a cooling pipe 20 and a circulation assembly, the cooling box 18 and the material pumping pump 19 are both fixed on the valve body 1, the material pumping pump 19 is communicated with the cooling box 18 through the connecting pipe, the material pumping pump 19 is communicated with one end of the cooling pipe 20, the cooling pipe 20 is wound on the coil 2, the cooling pipe 20 is spirally distributed along the axis of the coil 2, the other end of the cooling pipe 20 is connected with the cooling box 18 through the circulation assembly, cooling liquid is provided in the cooling box 18, and the material pumping pump 19 is electrically connected with the PLC.

When the coil 2 is cooled, the pump 19 is controlled to work, the cooling liquid in the cooling box 18 is guided into the cooling pipe 20, heat on the coil 2 is absorbed, heat absorption and cooling work of the coil 2 is achieved, the coil 2 is prevented from being burnt due to overhigh temperature, safety of the coil 2 is improved, and the circulating assembly is controlled to work, so that the heated cooling liquid is cooled and then guided into the cooling box 18 again, and recycling of the cooling liquid is achieved.

Preferably, in order to realize the recycling of the cooling liquid, the circulating assembly comprises a circulating pump 23, a first connecting pipe 22, a second connecting pipe 21, a cooling pipe 24, a cooling box 25 and a supporting column, the circulating pump 23 is fixed above the cooling box 18, the circulating pump 23 is communicated with the cooling box 18, the circulating pump 23 is communicated with one end of a cooling pipe 24 through a first connecting pipe 22, the other end of the cooling pipe 24 is communicated with one end of a second connecting pipe 21, the other end of the second connecting pipe 21 is communicated with one end of the cooling pipe 20 far away from the material pumping pump 19, the cooling box 25 is fixed on the valve body 1 through a support column, both sides of the cooling box 25 are provided with through holes, the cooling pipe 24 passes through two perforations, cooling water is arranged in the cooling box 25, a water filling port and a water outlet are respectively arranged above and below the cooling box 25, and the circulating pump 23 is electrically connected with the PLC.

When carrying out cooling work, circulating pump 23 work, in the coolant liquid after being heated in the cooling tube 20 leads to cooling tube 24 through second connecting pipe 21, absorbs the heat through cooling water in cooling box 25, has realized the function to the coolant liquid cooling, and the coolant liquid after the rethread first connecting pipe 22 will be cooled has realized the cyclic utilization of coolant liquid in leading to cooling box 18 again through first connecting pipe 22.

Preferably, in order to limit the moving direction of the moving plate 7, the cleaning assembly further comprises two guide rods 9, small holes are formed in the two ends of the moving plate 7 and correspond to the guide rods 9 one to one, one end of each guide rod 9 is vertically fixed above the fixed box 3, the other end of each guide rod 9 penetrates through the small holes, and the moving plate 7 is connected with the guide rods 9 in a sliding mode.

By providing the guide bar 9, the moving direction of the moving plate 7 is limited, so that the moving plate 7 is more stable when moving.

Preferably, in order to avoid the moving plate 7 from being separated from the guide rods 9, the cleaning assembly further comprises two fixing plates 10, the fixing plates 10 correspond to the guide rods 9 one to one, and one end of each guide rod 9, which is far away from the fixed box 3, is fixedly connected with the fixing plate 10.

By arranging the fixed plate 10, the moving distance of the moving plate 7 on the guide rod 9 is limited, and the moving plate 7 is prevented from being separated from the guide rod 9 to influence the movement of the moving plate 7.

As preferred, for the impurity on the discharge filter screen 4, arrange the sediment subassembly and include sprue 11, connecting plate 12 and two mobile unit, two mobile unit set up the both sides at fixed box 3 respectively, sprue 11 sets up the inside at the bar mouth, sprue 11 matches with the bar mouth, sprue 11 and connecting plate 12 fixed connection, the mobile unit includes bearing, lead screw 15, knob 14, slider 16 and connecting rod 13, bearing and fixed box 3 fixed connection, the both ends of lead screw 15 respectively with the inner circle and the knob 14 fixed connection of bearing, slider 16 cover is established on lead screw 15, the junction of slider 16 with lead screw 15 is equipped with the screw thread that matches with lead screw 15, the both ends of connecting rod 13 respectively with one side and the slider 16 fixed connection of connecting plate 12 that is close to fixed box 3.

When carrying out the edulcoration during operation, the manual knob 14 that rotates drives lead screw 15 and rotates for slider 16 removes to the direction of keeping away from knob 14, drives the sprue 11 through connecting plate 12 and removes to the direction of keeping away from the bar mouth, makes sprue 11 and bar mouth break away from, and the impurity on the filter screen 4 of being convenient for shifts out the outside of fixed box 3 from bar mouth department.

As shown in fig. 4, the slide way 17 is fixedly connected with the fixing box 3, a sliding groove is arranged on one side of the slide way 17 close to the screw rod 15, the sliding groove is parallel to the screw rod 15, the sliding block 16 is arranged inside the sliding groove, the sliding block 16 is matched with the sliding groove, and the sliding block 16 is slidably connected with the sliding groove.

Through setting up slide 17, restricted slider 16's moving direction for slider 16 does not take place to rotate when moving on lead screw 15, has improved the stability when slider 16 rotates on lead screw 15.

Preferably, the slide 16 is not separated from the slide groove, and the slide groove is a dovetail groove.

Preferably, in order to facilitate the rotation of the knob 14, the knob 14 is provided with anti-slip threads.

Preferably, in order to make the slider 16 smooth, the screw rod 15 is coated with lubricating oil, so that the friction between the screw rod 15 and the slider 16 is reduced, and the slider 16 moves on the screw rod 15 more smoothly.

Preferably, in order to detect the temperature of the coil 2, a temperature sensor 26 is provided on the coil 2, and the temperature sensor 26 is electrically connected to the PLC.

Through setting up temperature sensor 26, can detect the temperature on the coil 2, when the temperature on the coil 2 was too high, control cooling mechanism work realized the cooling work to coil 2, avoided coil 2 high temperature and burnt out, improved the security.

The fluid enters the inside of the fixed box 3 through the water inlet, after impurity removal through the filter screen 4, the fluid enters the inside of the valve body 1 through the water outlet, the probability of the impurities entering the inside of the valve body 1 is reduced, thereby avoiding the blocking of the valve body 1, when the filter screen 4 needs to be cleaned, the knob 14 is manually rotated to drive the screw rod 15 to rotate, so that the slide block 16 moves towards the direction far away from the knob 14, the connecting plate 12 drives the plugging block 11 to move towards the direction far away from the strip-shaped opening, so that the plugging block 11 is separated from the strip-shaped opening, the impurities on the filter screen 4 are conveniently moved out of the fixed box 3 from the strip-shaped opening, and then the movable plate 7 is manually driven to move towards the direction close to the fixed box 3, simultaneously compression spring 8 drives cleaning plate 5 through carriage release lever 6 and removes to the direction that is close to the bar mouth to scrape the impurity on the filter screen 4 and fall, and outside the fixed box 3 of the department discharge of bar mouth. When giving the heat dissipation of coil 2, the work of control pump 19, in leading-in cooling tube 20 of coolant liquid in the cooling box 18, absorb the heat on the coil 2, realized the work of the heat absorption cooling of coil 2, avoid coil 2 high temperature and burn out, the security of coil 2 has been improved, the work of re-control circulating pump 23, the coolant liquid after being heated in the cooling tube 20 passes through in the leading-in cooling tube 24 of second connecting pipe 21, absorb the heat through cooling water in the cooling box 25, the function of cooling to the coolant liquid has been realized, the coolant liquid after the rethread first connecting pipe 22 will be cooled is through in leading-in cooling box 18 again of first connecting pipe 22, the cyclic utilization of coolant liquid has been realized.

Compared with the prior art, this solenoid valve that fail safe nature is high with edulcoration function passes through cooling mechanism, realized the radiating function of coil 2 cooling, avoid coil 2 to burn out, the security of coil 2 has been improved, compare with current cooling mechanism, this cooling mechanism has realized the cyclic utilization of coolant liquid, the practicality has been improved, through edulcoration mechanism, the function of edulcoration has been realized, avoid impurity to get into 1 inside and block up valve body 1 of valve body, compare with current edulcoration mechanism, this edulcoration mechanism has improved the convenience of clean filter screen 4.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.