Four-valve-group electromagnetic valve terminal

Abstract

The invention discloses a four-valve-group electromagnetic valve terminal, and relates to the technical field of electromagnetic valve terminals, the electromagnetic valve terminal comprises a valve body, an electromagnetic valve assembly, a first pressure transmitter, a second pressure transmitter and a silencer, the first pressure transmitter, a check assembly of a first electromagnetic valve and an inlet area of a third electromagnetic valve are communicated through a circulation pipeline, a check assembly of the third electromagnetic valve, a check assembly of the fourth electromagnetic valve and a silencer are communicated through a circulation pipeline, an inlet area of the first electromagnetic valve and an inlet area of the second electromagnetic valve are communicated through a circulation pipeline, and a second pressure transmitter, a check assembly of the second electromagnetic valve and an inlet area of the fourth electromagnetic valve are communicated through a circulation pipeline. By opening and closing part of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve, the circulation route of liquid or gas in the circulation pipeline is changed, switching control of multiple pipelines is achieved, and noise generated when the liquid or gas in the circulation pipeline circulates is reduced through the silencer.

Description

Technical Field

[0001] The invention relates to the technical field of solenoid valve islands, in particular to a four-valve group solenoid valve island. Background Art

[0002] In modern industrial production, the degree of automation is constantly improving. Traditional decentralized valve control methods have many inconveniences. With the development of automated assembly line operations, the demand for technology that can centrally control multiple valves is growing. This demand has led to the emergence of solenoid valve island technology, which can centrally manage and control multiple solenoid valves, adapting to the development trend of industrial automation.

[0003] Prior art CN214662383U discloses a solenoid valve island with one inlet and two outlets and two rows. The technical solution discloses that "the utility model discloses a solenoid valve island with one inlet and two outlets and two rows, including a valve island valve body, both sides of the valve island valve body are provided with liquid discharge heads, the middle part of one end of the valve island valve body is provided with a liquid inlet head, the top of the valve island valve body is provided with a valve cover, a coil component is provided on the valve cover, both sides of one end of the valve island valve body are provided with mounting ears of an integrated structure, and the mounting ears are provided with stepped grooves, a valve cover component is provided on the valve cover, and a coil component is provided on the valve cover component. A liquid inlet head is provided in the middle part of one end of the valve island valve body of the utility model, and liquid discharge heads are provided on both sides of the valve island valve body, so that it can perform multi-directional liquid discharge control and is easy to use. A valve cover is installed on the top of the valve island valve body by bolts, and four coil components are installed on the top of the valve cover, so that it can perform multi-pipeline switching control, which increases the versatility of the device."

[0004] Although the prior art has disclosed a solenoid valve island with one inlet, two outlets and two rows, there are still some shortcomings. Specifically, in the actual production operation process, the valve core of the solenoid valve island is too simple to accurately control the flow rate through the solenoid valve island, and there is no component to provide a buffer for the opening and closing of the valve core, which can easily cause damage to the solenoid valve island and affect its service life. Therefore, it is urgently needed to provide a four-valve group solenoid valve island to solve the above problems, which can change the flow route of liquid or gas in the circulation pipeline and realize the switching control of multiple pipelines, while improving the precise control of the circulation flow and the service life. Summary of the invention

[0005] The object of the present invention is to provide a four-valve group solenoid valve island to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The solenoid valve island includes a valve body, a solenoid valve assembly, a first pressure transmitter, a second pressure transmitter and a muffler, a flow pipeline is arranged in the valve body, the first pressure transmitter is fixedly connected to the valve body, the first pressure transmitter is communicated with the flow pipeline, the second pressure transmitter is fixedly connected to the valve body, the second pressure transmitter is communicated with the flow pipeline, the muffler is fixedly connected to the valve body, four solenoid valve assemblies are arranged, the four solenoid valve assemblies include a solenoid valve body, an inlet area and a check assembly, the solenoid valve body is inserted into the valve body, the solenoid valve body is fixedly connected to the valve body, the inlet area and the check assembly are arranged in the valve body, the inlet area is inserted into the valve body, Into the solenoid valve body, the inlet area is connected to the solenoid valve body, the check assembly is clamped by the inlet area and the valve body, the four solenoid valves are generally divided into a first solenoid valve, a second solenoid valve, a third solenoid valve and a fourth solenoid valve, the first pressure transmitter, the check assembly of the first solenoid valve and the inlet area of ​​the third solenoid valve are connected through a circulation pipeline, the check assembly of the third solenoid valve, the check assembly of the fourth solenoid valve and the muffler are connected through a circulation pipeline, the inlet area of ​​the first solenoid valve and the inlet area of ​​the second solenoid valve are connected through a circulation pipeline, the second pressure transmitter, the check assembly of the second solenoid valve and the inlet area of ​​the fourth solenoid valve are connected through a circulation pipeline.

[0008] When the solenoid valve assembly is closed, the inlet area and the check assembly are not connected. When the solenoid valve assembly is opened, liquid or gas flows through the inlet area and the check assembly in sequence in the circulation pipeline. The check assembly prevents liquid or gas from flowing from the check assembly to the inlet area when the solenoid valve assembly is opened and closed. The first pressure transmitter, the check assembly of the first solenoid valve and the inlet area of ​​the third solenoid valve are connected through the circulation pipeline, the check assembly of the third solenoid valve, the check assembly of the fourth solenoid valve and the muffler are connected through the circulation pipeline, and the inlet area of ​​the first solenoid valve and the inlet area of ​​the second solenoid valve are connected through the circulation pipeline. The first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve are connected through the circulation pipeline. The circulation route of the liquid or gas in the circulation pipeline is changed by opening and closing some valves in the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve, so as to realize the switching control of multiple pipelines to adapt to different usage scenarios and improve the versatility of the solenoid valve island. The muffler is used to reduce the noise generated when the liquid or gas circulates in the circulation pipeline, so as to provide a quiet working environment for the operator. When the equipment is abnormal, the operator can hear the abnormal sound in time, thereby improving the work safety.

[0009] Furthermore, the circulation pipeline is provided with a first outlet, a second outlet, and a pipeline inlet. The first outlet is connected to the first pressure transmitter, the second outlet is connected to the second pressure transmitter, and the pipeline inlet, the inlet area of ​​the first solenoid valve and the inlet area of ​​the second solenoid valve are connected.

[0010] When the input device inputs liquid or gas to the actuator connected to the first outlet through the solenoid valve island, the first solenoid valve opens, the second solenoid valve, the third solenoid valve and the fourth solenoid valve are closed, and the liquid or gas enters the circulation pipeline from the pipeline inlet, and enters the actuator through the first solenoid valve, the first pressure transmitter and the first outlet in turn. When the actuator connected to the first outlet finishes executing, the third solenoid valve opens, the first solenoid valve, the second solenoid valve and the fourth solenoid valve are closed, and the liquid or gas in the actuator flows out of the solenoid valve island through the first pressure transmitter, the third solenoid valve and the muffler in turn; when the input device inputs liquid or gas to the actuator connected to the second outlet through the solenoid valve island, the second solenoid valve opens, and the first solenoid valve, the third solenoid valve and the fourth solenoid valve are closed. Liquid or gas enters the circulation pipeline from the pipeline inlet, and flows into the actuator through the second solenoid valve, the second pressure transmitter and the second outlet in sequence. When the actuator connected to the second outlet finishes execution, the fourth solenoid valve opens, and the first solenoid valve, the second solenoid valve and the third solenoid valve are closed. The liquid or gas in the actuator flows out of the solenoid valve island through the second pressure transmitter, the fourth solenoid valve and the muffler in sequence; the first pressure transmitter monitors and feeds back the flow of liquid or gas flowing from the first solenoid valve to the first outlet, and the second pressure transmitter monitors and feeds back the flow of liquid or gas flowing from the second solenoid valve to the second outlet. After receiving the feedback, the current of the first solenoid valve and the second solenoid valve is adjusted to change the opening size of the solenoid valve assembly, thereby controlling the flow of liquid or gas when it flows out.

[0011] Furthermore, the circulation pipeline is provided with a third outlet and a fourth outlet, the third outlet is connected to the first pressure transmitter, the check assembly of the first solenoid valve and the inlet area of ​​the third solenoid valve, the third outlet is provided with a first plug, and the first plug is fixedly connected to the valve body, the fourth outlet is connected to the second pressure transmitter, the check assembly of the second solenoid valve and the inlet area of ​​the fourth solenoid valve, the fourth outlet is provided with a second plug, and the second plug is fixedly connected to the valve body.

[0012] The first plug and the second plug block the third outlet and the fourth outlet respectively, which can prevent the leakage of liquid or gas in the circulation pipeline and prevent external impurities from entering the circulation pipeline to contaminate the liquid or gas; during the factory inspection of the solenoid valve island, a pressure gauge can be connected to measure the pressure of the circulation pipeline to ensure safety and stability.

[0013] Furthermore, the solenoid valve body includes a valve cover, a coil component, a static iron core, an elastic gasket, a flat gasket and a nut. The bottom end of the valve cover is inserted into the upper end surface of the valve body, the valve cover and the valve body are fixedly connected, the upper end of the valve cover is inserted into the coil component, one end of the static iron core is inserted into the coil component and the valve cover in turn, the static iron core and the valve cover are welded, and the other end of the nut and the static iron core is threadedly connected. The flat gasket is arranged in a groove at the top of the coil component, the elastic gasket is arranged between the flat gasket and the nut, the nut and the valve cover clamp the elastic gasket, the flat gasket and the coil component, the inlet area is inserted into the valve cover from the bottom end of the valve cover, part of the inlet area is fixedly connected to the bottom end of the static iron core, and part of the inlet area is slidably connected to the valve cover.

[0014] The elastic gasket and the flat gasket can provide buffering during the opening and closing process of the solenoid valve assembly, reduce the damage caused by impact, and increase the service life of the solenoid valve island. The coil component is energized to generate a magnetic field, attracting some components in the inlet area. At this time, the liquid or gas in the circulation pipeline flows to the check assembly through the inlet area, presses down some components in the check assembly, and then flows into another part of the circulation pipeline; the opening and closing degree of the solenoid valve assembly is controlled by changing the size of the current in the coil component, thereby controlling the flow rate of the liquid or gas in the circulation pipeline.

[0015] Furthermore, the inlet area includes an iron core return spring, a moving iron core, an iron core seal, a sealing return spring and a main valve core, one end of the iron core return spring is fixedly connected to the bottom end of the static iron core, the other end of the iron core return spring is inserted into the moving iron core, the iron core return spring and the moving iron core are fixedly connected, the moving iron core is inserted into the valve cover from the bottom end of the valve cover, the moving iron core and the valve cover are slidingly connected, the iron core seal is arranged inside the bottom end of the moving iron core, the iron core seal and the moving iron core are slidingly connected, the sealing return spring is arranged inside the bottom end of the moving iron core, one end of the sealing return spring is fixedly connected to the moving iron core, the other end of the sealing return spring is fixedly connected to the iron core seal, the main valve core is inserted into the valve cover from the bottom end of the valve cover, and the main valve core and the valve cover are clamped.

[0016] When liquid or gas needs to flow from the inlet area to the check assembly, the coil component is energized, and the moving iron core and the iron core seal are lifted up under the action of the liquid or gas pressure and electromagnetic attraction, and the liquid or gas in the circulation pipeline flows to the check assembly through the inlet area, and some components in the check assembly are pushed down under the action of the liquid or gas pressure, and the liquid or gas flows into the check assembly and then flows to other components through the circulation pipeline; when the solenoid valve assembly is closed, the coil component is de-energized, the iron core return spring and the seal return spring rebound, and the moving iron core and the iron core seal are reset respectively, and the components in the check assembly are also automatically reset, and at this time the liquid or gas in the circulation pipeline cannot flow into the inlet area through the check assembly.

[0017] Furthermore, a vertical flow channel is provided at the bottom end of the main valve core, an upper inlet of the flow channel is blocked by an iron core seal, and a lower inlet of the flow channel is blocked by a check assembly.

[0018] Furthermore, through holes are arranged on the surrounding walls of the main valve core.

[0019] The flow channel and the through hole are arranged so that the liquid or gas in the circulation pipeline can flow from the inlet area to the check assembly when the solenoid valve assembly is energized and opened. The liquid or gas presses down the components in the check assembly and then flows into another part of the circulation pipeline, thereby changing the flow path of the liquid or gas in the circulation pipeline and flowing out from the designated outlet of the circulation pipeline.

[0020] Furthermore, the check assembly includes a check seal, a check valve core, a check spring and a check gasket, the check gasket being arranged at the bottom end of the circulation pipeline, one end of the check spring being fixedly connected to the upper end face of the check gasket, the other end of the check spring being fixedly connected to the lower end face of the shoulder of the check valve core, the bottom end of the check valve core passing through the check gasket, the check valve core and the check gasket being slidably connected, the check seal being arranged inside the upper end of the check valve core, and the upper end face of the check seal blocking the lower end inlet of the flow channel.

[0021] When liquid or gas needs to flow into the check assembly from the inlet area, the coil component is energized, and the liquid or gas in the circulation pipeline enters the main valve core through the through hole. The moving iron core and the iron core seal are lifted up by the pressure of the liquid or gas and the electromagnetic suction, and then flow to the check valve core through the upper inlet of the flow channel. The check valve core is pushed down by the pressure of the liquid or gas, the check spring is compressed, the inlet at the lower end of the flow channel opens, and the liquid or gas flows to other components through the circulation pipeline; when the solenoid valve assembly is closed, the coil component is de-energized, the check spring, the iron core reset spring and the seal reset spring rebound, and the check valve core, the moving iron core and the iron core seal are reset respectively, so that the upper and lower inlets of the flow channel are blocked. At this time, the liquid or gas in the circulation pipeline cannot flow into the inlet area through the check assembly.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention opens and closes some valves in the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve to change the flow route of the liquid or gas in the flow pipeline, thereby realizing the switching control of multiple pipelines to adapt to different usage scenarios and improve the versatility of the solenoid valve island;

[0024] 2. The first pressure transmitter and the second pressure transmitter of the present invention monitor and feedback the flow rate of the liquid or gas flowing through. After receiving the feedback, the operator adjusts the current of the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve to change the opening size of the valve, thereby controlling the flow rate of the liquid or gas when it flows out;

[0025] 3. The present invention is provided with a flat washer, an elastic washer, a check spring, an iron core reset spring and a sealing reset spring, which play a buffering role in the opening and closing process of the solenoid valve assembly, thereby improving the service life of the solenoid valve island. At the same time, the check spring, the iron core reset spring and the sealing reset spring can reset the check valve core, the moving iron core and the iron core seal inside the solenoid valve assembly after the solenoid valve assembly is powered off, so that the upper and lower inlets of the flow channel are blocked, so that the liquid or gas in the circulation pipeline cannot flow into the inlet area through the check component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall appearance structure of a four-valve group solenoid valve island of the present invention;

[0027] Figure 2 It is a schematic top view of the overall structure of a four-valve group solenoid valve island of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the flow pipeline of a four-valve group solenoid valve island of the present invention;

[0029] Figure 4 A cross-sectional schematic diagram of a solenoid valve assembly of a four-valve group solenoid valve island of the present invention;

[0030] Figure 5 Another schematic diagram of a flow pipeline of a four-valve group solenoid valve island of the present invention;

[0031] Figure 6 It is a schematic diagram of the components of the solenoid valve body of a four-valve group solenoid valve island of the present invention;

[0032] Figure 7 It is a schematic diagram of some components of the inlet area of ​​a four-valve group solenoid valve island of the present invention;

[0033] Figure 8 The figure is a schematic diagram of the components of a check assembly of a four-valve group solenoid valve island according to the present invention.

[0034] In the figure: 1, valve body; 2, solenoid valve assembly; 3, first pressure transmitter; 4, second pressure transmitter; 5, muffler; 11, circulation pipeline; 12, first outlet; 13, second outlet; 14, pipeline inlet; 15, third outlet; 16, fourth outlet; 17, first plug; 18, second plug; 21, solenoid valve body; 22, inlet area; 23, check assembly; 24, first solenoid valve; 25, second solenoid valve; 26, third solenoid valve ; 27. Fourth solenoid valve; 211. Valve cover; 212. Coil component; 213. Static iron core; 214. Elastic gasket; 215. Flat gasket; 216. Nut; 217. Flow channel; 218. Through hole; 221. Iron core return spring; 222. Moving iron core; 223. Iron core seal; 224. Seal return spring; 225. Main valve core; 231. Check seal; 232. Check valve core; 233. Check spring; 234. Check gasket. DETAILED DESCRIPTION

[0035] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0036] Example: Figure 1 - Figure 8 As shown, the present invention provides a technical solution for a four-valve group solenoid valve island:

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the solenoid valve island includes a valve body 1, a solenoid valve assembly 2, a first pressure transmitter 3, a second pressure transmitter 4 and a muffler 5. A flow pipeline 11 is arranged in the valve body 1. The first pressure transmitter 3 is fixedly connected to the valve body 1, and the first pressure transmitter 3 is communicated with the flow pipeline 11. The second pressure transmitter 4 is fixedly connected to the valve body 1, and the second pressure transmitter 4 is communicated with the flow pipeline 11. The muffler 5 is fixedly connected to the valve body 1. The solenoid valve assemblies 2 are provided with four, and the four solenoid valve assemblies 2 include a solenoid valve body 21, an inlet area 22 and a check assembly 23. The solenoid valve body 21 is inserted into the valve body 1, and the solenoid valve body 21 is fixedly connected to the valve body 1. The inlet area 22 and the check assembly 23 are arranged in the valve body 1, and the inlet area 22 is inserted into the solenoid valve body 21. The inlet area 22 is connected to the solenoid valve body 21, and the check component 23 is clamped by the inlet area 22 and the valve body 1. The four solenoid valve assemblies 2 are divided into a first solenoid valve 24, a second solenoid valve 25, a third solenoid valve 26 and a fourth solenoid valve 27. The first pressure transmitter 3, the check component 23 of the first solenoid valve 24 and the inlet area 22 of the third solenoid valve 26 are connected through a circulation pipeline 11, the check component 23 of the third solenoid valve 26, the check component 23 of the fourth solenoid valve 27 and the muffler 5 are connected through the circulation pipeline 11, the inlet area 22 of the first solenoid valve 24 and the inlet area 22 of the second solenoid valve 25 are connected through the circulation pipeline 11, and the second pressure transmitter 4, the check component 23 of the second solenoid valve 25 and the inlet area 22 of the fourth solenoid valve 27 are connected through the circulation pipeline 11.

[0038] When the solenoid valve assembly 2 is closed, the inlet area 22 and the check assembly 23 are not connected. When the solenoid valve assembly 2 is opened, the liquid or gas flows through the inlet area 22 and the check assembly 23 in the circulation pipeline 11 in sequence. The check assembly 23 prevents the liquid or gas from flowing from the check assembly 23 to the inlet area 22 when the solenoid valve assembly 2 is opened and closed. The first pressure transmitter 3, the check assembly 23 of the first solenoid valve 24 and the inlet area 22 of the third solenoid valve 26 are connected through the circulation pipeline 11, the check assembly 23 of the third solenoid valve 26, the check assembly 23 of the fourth solenoid valve 27 and the muffler 5 are connected through the circulation pipeline 11, and the inlet area 22 of the first solenoid valve 24 and the second solenoid valve 25 are connected. The inlet area 22 is connected through the circulation pipeline 11, and the second pressure transmitter 4, the check assembly 23 of the second solenoid valve 25 and the inlet area 22 of the fourth solenoid valve 27 are connected through the circulation pipeline 11. By opening and closing some valves in the first solenoid valve 24, the second solenoid valve 25, the third solenoid valve 26 and the fourth solenoid valve 27, the circulation route of the liquid or gas in the circulation pipeline 11 is changed, and the switching control of multiple pipelines is realized to adapt to different usage scenarios and improve the versatility of the solenoid valve island. The muffler 5 is used to reduce the noise generated when the liquid or gas circulates in the circulation pipeline 11, provide a quiet working environment for the operator, and be able to hear abnormal noise in time when the equipment is abnormal, thereby improving work safety.

[0039] like Figure 2 and Figure 3 As shown, the circulation pipeline 11 is provided with a first outlet 12, a second outlet 13, and a pipeline inlet 14. The first outlet 12 is connected to the first pressure transmitter 3, the second outlet 13 is connected to the second pressure transmitter 4, and the pipeline inlet 14, the inlet area 22 of the first solenoid valve 24 and the inlet area 22 of the second solenoid valve 25 are connected.

[0040] When the input device inputs liquid or gas to the actuator connected to the first outlet 12 through the solenoid valve island, the first solenoid valve 24 is opened, the second solenoid valve 25, the third solenoid valve 26 and the fourth solenoid valve 27 are closed, and the liquid or gas enters the circulation pipeline 11 from the pipeline inlet 14, and enters the actuator through the first solenoid valve 24, the first pressure transmitter 3 and the first outlet 12 in sequence. When the actuator connected to the first outlet 12 finishes execution, the third solenoid valve 26 is opened, the first solenoid valve 24, the second solenoid valve 25 and the fourth solenoid valve 27 are closed, and the liquid or gas in the actuator flows out of the solenoid valve island through the first pressure transmitter 3, the third solenoid valve 26 and the muffler 5 in sequence; when the input device inputs liquid or gas to the actuator connected to the second outlet 13 through the solenoid valve island, the second solenoid valve 25 is opened, the first solenoid valve 24, the second solenoid valve 25 and the fourth solenoid valve 27 are closed, and the liquid or gas in the actuator flows out of the solenoid valve island through the first pressure transmitter 3, the third solenoid valve 26 and the muffler 5 in sequence. The third solenoid valve 26 and the fourth solenoid valve 27 are closed, and the liquid or gas enters the circulation pipeline 11 from the pipeline inlet 14, and flows into the actuator through the second solenoid valve 25, the second pressure transmitter 4 and the second outlet 13 in sequence. When the actuator connected to the second outlet 13 is executed, the fourth solenoid valve 27 is opened, the first solenoid valve 24, the second solenoid valve 25 and the third solenoid valve 26 are closed, and the liquid or gas in the actuator flows out of the solenoid valve island through the second pressure transmitter 4, the fourth solenoid valve 27 and the muffler 5 in sequence; the first pressure transmitter 3 and the second pressure transmitter 4 monitor and feedback the flow of the liquid or gas flowing through, and after receiving the feedback, the operator adjusts the current of the first solenoid valve 24, the second solenoid valve 25, the third solenoid valve 26 and the fourth solenoid valve 27 to change the size of the valve opening, thereby controlling the flow of the liquid or gas when it flows out.

[0041] like Figure 3 As shown, the circulation pipeline 11 is provided with a third outlet 15 and a fourth outlet 16, and the third outlet 15 is connected to the first pressure transmitter 3, the check assembly 23 of the first solenoid valve 24 and the inlet area 22 of the third solenoid valve 26, and the third outlet 15 is provided with a first plug 17, and the first plug 17 is fixedly connected to the valve body 1, and the fourth outlet 16 is connected to the second pressure transmitter 4, the check assembly 23 of the second solenoid valve 25 and the inlet area 22 of the fourth solenoid valve 27, and the fourth outlet 16 is provided with a second plug 18, and the second plug 18 is fixedly connected to the valve body 1.

[0042] The first plug 17 and the second plug 18 block the third outlet 15 and the fourth outlet 16 respectively, which can prevent the leakage of liquid or gas in the circulation pipeline 11 and prevent external impurities from entering the circulation pipeline 11 to contaminate the liquid or gas; during the factory inspection of the solenoid valve island, a pressure gauge can be connected to measure the pressure of the circulation pipeline 11 to ensure safety and stability.

[0043] like Figure 4 and Figure 6As shown, the solenoid valve body 21 includes a valve cover 211, a coil component 212, a static iron core 213, an elastic washer 214, a flat washer 215 and a nut 216. The bottom end of the valve cover 211 is inserted into the upper end surface of the valve body 1, and the valve cover 211 and the valve body 1 are fixedly connected. The upper end of the valve cover 211 is inserted into the coil component 212, and one end of the static iron core 213 is inserted into the coil component 212 and the valve cover 211 in sequence. The static iron core 213 and the valve cover 211 are welded together, and the nut 216 and the static iron core 21 The other end of the valve cover 211 is threadedly connected, the flat washer 215 is arranged in the groove at the top of the coil component 212, the elastic washer 214 is arranged between the flat washer 215 and the nut 216, the nut 216 and the valve cover 211 clamp the elastic washer 214, the flat washer 215 and the coil component 212, the inlet area 22 is inserted into the valve cover 211 from the bottom end of the valve cover 211, part of the inlet area 22 is fixedly connected to the bottom end of the static iron core 213, and part of the inlet area 22 is slidably connected to the valve cover 211.

[0044] The elastic gasket 214 and the flat gasket 215 can provide buffering during the opening and closing process of the solenoid valve assembly 2, reduce the damage caused by impact, and increase the service life of the solenoid valve island. The coil component 212 is energized to generate a magnetic field, attracting some components in the inlet area 22. At this time, the liquid or gas in the circulation pipeline 11 flows to the check assembly 23 through the inlet area 22, and after pressing down some components in the check assembly 23, it flows into another part of the circulation pipeline 11; the opening and closing degree of the solenoid valve assembly 2 is controlled by changing the size of the current in the coil component 212, thereby controlling the flow size of the liquid or gas in the circulation pipeline 11.

[0045] like Figure 4 and Figure 7 As shown, the inlet area 22 includes an iron core return spring 221, a moving iron core 222, an iron core seal 223, a seal return spring 224 and a main valve core 225, one end of the iron core return spring 221 is fixedly connected to the bottom end of the static iron core 213, the other end of the iron core return spring 221 is inserted into the moving iron core 222, the iron core return spring 221 and the moving iron core 222 are fixedly connected, the moving iron core 222 is inserted into the valve cover 211 from the bottom end of the valve cover 211, and the moving iron core 222 and the valve cover 211 are slidably connected. The iron core seal 223 is arranged inside the bottom end of the moving iron core 222, and the iron core seal 223 and the moving iron core 222 are slidingly connected. The sealing return spring 224 is arranged inside the bottom end of the moving iron core 222, and one end of the sealing return spring 224 is fixedly connected to the moving iron core 222, and the other end of the sealing return spring 224 is fixedly connected to the iron core seal 223. The main valve core 225 is inserted into the valve cover 211 from the bottom end of the valve cover 211, and the main valve core 225 and the valve cover 211 are clamped.

[0046] When the liquid or gas in the circulation pipeline 11 needs to flow from the inlet area 22 through the check assembly 23 into another part of the circulation pipeline 11, the coil component 212 is energized, and the moving iron core 222 and the iron core seal 223 are lifted up under the action of the pressure of the liquid or gas and the electromagnetic attraction, and the liquid or gas in the circulation pipeline 11 flows to the check assembly 23 through the inlet area 22, and some components in the check assembly 23 are pushed down under the action of the liquid or gas pressure, and the liquid or gas flows into the check assembly 23, and then flows to other components through the circulation pipeline 11; when the solenoid valve assembly 2 is closed, the coil component 212 is de-energized, the iron core reset spring 221 and the seal reset spring 224 rebound, and the moving iron core 222 and the iron core seal 223 are reset respectively, and the components in the check assembly 23 are also automatically reset. At this time, the liquid or gas in the circulation pipeline 11 cannot flow into the inlet area 22 through the check assembly 23.

[0047] like Figure 4 As shown, a vertical flow channel 217 is provided at the bottom end of the main valve core 225 , an upper inlet of the flow channel 217 is blocked by the iron core seal 223 , and a lower inlet of the flow channel 217 is blocked by the check assembly 23 .

[0048] like Figure 7 As shown, through holes 218 are provided on the surrounding walls of the main valve core 225 .

[0049] The flow channel 217 and the through hole 218 are arranged so that the liquid or gas in the circulation pipeline 11 can flow from the inlet area 22 to the check assembly 23 when the solenoid valve assembly 2 is energized and opened. The liquid or gas presses down the components in the check assembly 23 and then flows into another part of the circulation pipeline 11, thereby changing the flow path of the liquid or gas in the circulation pipeline 11 and flowing out from the designated outlet of the circulation pipeline 11.

[0050] like Figure 4 and Figure 8 As shown, the check assembly 23 includes a check seal 231, a check valve core 232, a check spring 233 and a check gasket 234, the check gasket 234 is arranged at the bottom end of the circulation pipeline 11, one end of the check spring 233 is fixedly connected to the upper end surface of the check gasket 234, the other end of the check spring 233 is fixedly connected to the lower end surface of the shoulder of the check valve core 232, the bottom end of the check valve core 232 passes through the check gasket 234, the check valve core 232 and the check gasket 234 are slidably connected, the check seal 231 is arranged inside the upper end of the check valve core 232, and the upper end surface of the check seal 231 blocks the lower end entrance of the flow channel 217.

[0051] When the liquid or gas in the circulation pipeline 11 needs to flow from the inlet area 22 through the check assembly 23 into another part of the circulation pipeline 11, the coil component 212 is energized, and the liquid or gas in the circulation pipeline 11 enters the main valve core 225 through the through hole 218. Under the action of the pressure of the liquid or gas and the electromagnetic attraction, the moving iron core 222 and the iron core seal 223 are lifted up, and then flow to the check valve core 232 through the upper end inlet of the flow channel 217. The check valve core 232 is pushed down under the pressure of the liquid or gas, and the check spring 233 is compressed, the inlet at the lower end of the flow channel 217 is opened, and the liquid or gas flows to other components through the circulation pipeline 11; when the solenoid valve assembly 2 is closed, the coil component 212 is powered off, the check spring 233, the iron core reset spring 221 and the seal reset spring 224 rebound, and the check valve core 232, the moving iron core 222 and the iron core seal 223 are reset respectively, so that the upper and lower inlets of the flow channel 217 are blocked. At this time, the liquid or gas in the circulation pipeline 11 cannot flow into the inlet area 22 through the check component 23.

[0052] The working principle of the present invention is as follows: when the input device inputs liquid or gas to the actuator connected to the first outlet 12 through the solenoid valve island, the first solenoid valve 24 is opened, the second solenoid valve 25, the third solenoid valve 26 and the fourth solenoid valve 27 are closed, and the liquid or gas enters the circulation pipeline 11 from the pipeline inlet 14, and enters the actuator through the first solenoid valve 24, the first pressure transmitter 3 and the first outlet 12 in sequence. When the actuator connected to the first outlet 12 finishes executing, the third solenoid valve 26 is opened, the first solenoid valve 24, the second solenoid valve 25 and the fourth solenoid valve 27 are closed, and the liquid or gas in the actuator flows out through the first pressure transmitter 3, the third solenoid valve 26 and the muffler 5 in sequence. Solenoid valve island; when the input device inputs liquid or gas to the actuator connected to the second outlet 13 through the solenoid valve island, the second solenoid valve 25 is opened, the first solenoid valve 24, the third solenoid valve 26 and the fourth solenoid valve 27 are closed, and the liquid or gas enters the circulation pipeline 11 from the pipeline inlet 14, and flows into the actuator through the second solenoid valve 25, the second pressure transmitter 4 and the second outlet 13 in sequence. When the actuator connected to the second outlet 13 finishes execution, the fourth solenoid valve 27 is opened, the first solenoid valve 24, the second solenoid valve 25 and the third solenoid valve 26 are closed, and the liquid or gas in the actuator flows out of the solenoid valve island through the second pressure transmitter 4, the fourth solenoid valve 27 and the muffler 5 in sequence.

[0053] Finally, it should be noted that the above 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 four-valve group solenoid valve island, characterized in that: A four-valve group solenoid valve island, characterized in that: the solenoid valve island comprises a valve body (1), a solenoid valve assembly (2), a first pressure transmitter (3), a second pressure transmitter (4) and a muffler (5); a flow pipeline (11) is arranged in the valve body (1); the first pressure transmitter (3) and the valve body (1) are fixedly connected; the first pressure transmitter (3) and the flow pipeline (11) are communicated; the second pressure transmitter (4) and the valve body (1) are fixedly connected; the second pressure transmitter (4) and the flow pipeline (11) are communicated; The pipeline (11) is connected, the muffler (5) and the valve body (1) are fixedly connected, four solenoid valve assemblies (2) are provided, and the four solenoid valve assemblies (2) include a solenoid valve body (21), an inlet area (22) and a check assembly (23), the solenoid valve body (21) is inserted into the valve body (1), the solenoid valve body (21) and the valve body (1) are fixedly connected, the inlet area (22) and the check assembly (23) are arranged in the valve body (1), and the inlet area (22) is inserted into the solenoid valve body (21), the inlet area (22) is connected to the solenoid valve body (21), the check assembly (23) is clamped by the inlet area (22) and the valve body (1), the four solenoid valve assemblies (2) are divided into a first solenoid valve (24), a second solenoid valve (25), a third solenoid valve (26) and a fourth solenoid valve (27), the first pressure transmitter (3), the check assembly (23) of the first solenoid valve (24) and the inlet area (22) of the third solenoid valve (26) are connected through a flow pipeline (11), The check assembly (23) of the third solenoid valve (26), the check assembly (23) of the fourth solenoid valve (27) and the muffler (5) are connected via a circulation pipeline (11); the inlet area (22) of the first solenoid valve (24) and the inlet area (22) of the second solenoid valve (25) are connected via a circulation pipeline (11); the second pressure transmitter (4), the check assembly (23) of the second solenoid valve (25) and the inlet area (22) of the fourth solenoid valve (27) are connected via a circulation pipeline (11).

2. A four-valve group solenoid valve island according to claim 1, characterized in that: The circulation pipeline (11) is provided with a first outlet (12), a second outlet (13), and a pipeline inlet (14); the first outlet (12) is connected to a first pressure transmitter (3); the second outlet (13) is connected to a second pressure transmitter (4); the pipeline inlet (14), an inlet area (22) of a first solenoid valve (24), and an inlet area (22) of a second solenoid valve (25) are connected.

3. A four-valve group solenoid valve island according to claim 2, characterized in that: The circulation pipeline (11) is provided with a third outlet (15) and a fourth outlet (16); the third outlet (15) is connected to the first pressure transmitter (3), the check assembly (23) of the first solenoid valve (24) and the inlet area (22) of the third solenoid valve (26); the third outlet (15) is provided with a first plug (17), and the first plug (17) is fixedly connected to the valve body (1); the fourth outlet (16) is connected to the second pressure transmitter (4), the check assembly (23) of the second solenoid valve (25) and the inlet area (22) of the fourth solenoid valve (27); the fourth outlet (16) is provided with a second plug (18), and the second plug (18) is fixedly connected to the valve body (1).

4. A four-valve group solenoid valve island according to claim 3, characterized in that: The solenoid valve body (21) comprises a valve cover (211), a coil component (212), a static iron core (213), an elastic washer (214), a flat washer (215) and a nut (216); the bottom end of the valve cover (211) is inserted into the upper end surface of the valve body (1); the valve cover (211) and the valve body (1) are fixedly connected; the upper end of the valve cover (211) is inserted into the coil component (212); one end of the static iron core (213) is inserted into the coil component (212) and the valve cover (211) in sequence; the static iron core (213) and the valve cover (211) are welded together; the nut (216) and the static iron core (213) are fixedly connected to the valve body (1); The other end of the valve body (213) is threadedly connected, the flat washer (215) is arranged in a groove at the top of the coil component (212), the elastic washer (214) is arranged between the flat washer (215) and the nut (216), the nut (216) and the valve cover (211) clamp the elastic washer (214), the flat washer (215) and the coil component (212), the inlet area (22) is inserted into the valve cover (211) from the bottom end of the valve cover (211), part of the inlet area (22) and the bottom end of the static iron core (213) are fixedly connected, and part of the inlet area (22) and the valve cover (211) are slidably connected.

5. A four-valve group solenoid valve island according to claim 4, characterized in that: The inlet area (22) comprises an iron core return spring (221), a movable iron core (222), an iron core seal (223), a seal return spring (224) and a main valve core (225); one end of the iron core return spring (221) is fixedly connected to the bottom end of the stationary iron core (213); the other end of the iron core return spring (221) is inserted into the movable iron core (222); the iron core return spring (221) and the movable iron core (222) are fixedly connected; the movable iron core (222) is inserted into the valve cover (211) from the bottom end of the valve cover (211); the movable iron core (222) and the valve cover (211) are slidably connected. The movable iron core (222) is dynamically connected, the iron core seal (223) is arranged inside the bottom end of the movable iron core (222), the iron core seal (223) and the movable iron core (222) are slidably connected, the sealing return spring (224) is arranged inside the bottom end of the movable iron core (222), one end of the sealing return spring (224) is fixedly connected to the movable iron core (222), and the other end of the sealing return spring (224) is fixedly connected to the iron core seal (223), the main valve core (225) is inserted into the valve cover (211) from the bottom end of the valve cover (211), and the main valve core (225) and the valve cover (211) are snap-fitted.

6. A four-valve group solenoid valve island according to claim 5, characterized in that: A vertical flow channel (217) is provided at the bottom end of the main valve core (225), the upper inlet of the flow channel (217) is blocked by the iron core seal (223), and the lower inlet of the flow channel (217) is blocked by the check assembly (23).

7. The four-valve group solenoid valve island according to claim 6, characterized in that: Through holes (218) are provided on the surrounding walls of the main valve core (225).

8. The four-valve group solenoid valve island according to claim 7, characterized in that: The check assembly (23) comprises a check seal (231), a check valve core (232), a check spring (233) and a check gasket (234); the check gasket (234) is arranged at the bottom end of the circulation pipeline (11); one end of the check spring (233) is fixedly connected to the upper end surface of the check gasket (234); the other end of the check spring (233) is fixedly connected to the lower end surface of the shaft shoulder of the check valve core (232); the bottom end of the check valve core (232) passes through the check gasket (234); the check valve core (232) and the check gasket (234) are slidably connected; the check seal (231) is arranged inside the upper end of the check valve core (232); the upper end surface of the check seal (231) blocks the lower end entrance of the flow channel (217).

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