A three-valve group solenoid valve island

Abstract

The present invention discloses a three-valve group solenoid valve island, which relates to the field of valve technology. The three-valve group solenoid valve island includes a valve body, an inlet mounting hole and two outlet mounting holes are opened on the same side of the valve body, a multi-purpose mounting hole is opened on the side of the valve body away from the inlet mounting hole, a valve cover assembly is installed above the valve body, the inlet mounting hole, the outlet mounting hole and the multi-purpose mounting hole are all installed with thick pipes and are connected by pipelines, the fluid to be transported flows into the interior of the valve body from the inlet mounting hole and flows out from the two outlet mounting holes, and the multi-purpose mounting hole can be used as the inlet of the valve body and also as the outlet of the valve body, the valve cover assembly can adjust whether the valve body is open, the number of outlets opened and the outlet flow, thereby reducing the number of valves installed and facilitating centralized management, and at the same time, a wide range of flow regulation improves the versatility of the valve, which can be used in production scenarios of different scales.

Description

Technical Field

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

[0002] In many industrial production and daily life, the transportation of gases and fluids often uses pipeline transportation. In pipeline transportation, the existence of valves is indispensable. The opening and closing of valves can control the outflow, stop and flow control of materials.

[0003] Under the existing technology, most valves can only play the functions of opening and closing, and the flow adjustment range is small. To achieve multi-level control, it can only be achieved by increasing the number of valves. For different flow requirements, it is necessary to install valves of different specifications or different numbers. The compatibility is not strong and the installation is cumbersome. Summary of the invention

[0004] The object of the present invention is to provide a three-valve group solenoid valve island to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the three-valve group solenoid valve island includes a valve body, an inlet mounting hole and two outlet mounting holes are provided on the same side of the valve body, a positive plug mounting hole and a multi-purpose mounting hole are provided on the side of the valve body away from the inlet mounting hole, a side plug mounting hole is provided on the side of the valve body adjacent to the positive plug mounting hole, three valve cover mounting holes are provided above the valve body, valve cover assemblies are installed on the three valve cover mounting holes, the inlet mounting hole, the two outlet mounting holes, the positive plug mounting hole, the multi-purpose mounting hole and the side plug mounting hole are all installed with thick pipes and are connected by pipelines.

[0006] As a preferred technical solution, a through pipe is installed on the thick pipe installed at the side plug mounting hole, the thick pipes at the multi-purpose mounting hole and the main plug mounting hole are directly connected to the through pipe, a first connecting short pipe is installed on the through pipe near the inlet mounting hole, a vertical pipe is installed on the first connecting short pipe, a first liquid storage pipe is provided on the outer sleeve of the vertical pipe, the lower end of the first liquid storage pipe is connected to the upper end of the vertical pipe and is sealed, and the first liquid storage pipe is communicated with the thick pipe at the inlet mounting hole; The through pipe is installed with a semi-ring short tube near the two outlet mounting holes, the upper end of the semi-ring short tube is installed with a second liquid storage tube, the second liquid storage tube is sleeved with a built-in catheter, the upper end of the built-in catheter is connected to the lower end of the second liquid storage tube, and the built-in catheter is connected to the thick tube at the outlet mounting hole through a second connecting short tube.

[0007] As an optimal technical solution, the pipeline near the inlet mounting hole is the first regulating valve, and the two pipelines near the two outlet mounting holes are the second regulating valve. The connection between the second liquid storage tube and the built-in catheter in the second regulating valve adopts a sloped flow channel.

[0008] As a preferred technical solution, a front plug is detachably installed at the front plug mounting hole, and a side plug is detachably installed at the side plug mounting hole.

[0009] As a preferred technical solution, the valve cover assembly includes an imported control valve cover, a common valve cover, a mounting seat, a housing, a mounting through hole, a buffer ring, a moving iron core, a spring mounting hole, a return spring, a static iron core, a shockproof gasket and a buffer sealing ring; The valve body is provided with a valve cover mounting hole, and a mounting seat is installed above the three valve cover mounting holes. A shell is installed on the mounting seat, and a mounting through hole is provided inside the shell. A coil is surrounded by the mounting through hole, and a buffer ring is installed in the mounting through hole. The buffer ring partially extends into the mounting seat, and a moving iron core is slidably installed inside the buffer ring. A spring mounting hole is provided on the moving iron core, and a static iron core is installed on the upper part of the mounting through hole. The static iron core and the moving iron core are connected by a reset spring, and a movable gap is left between the static iron core and the moving iron core. A buffer sealing ring is installed at the end of the moving iron core.

[0010] As a preferred technical solution, the inlet control valve cover is installed above the inlet mounting hole, and the other two are ordinary valve covers. The inlet control valve cover is connected to the mounting seat through a shock-proof gasket.

[0011] As a preferred technical solution, a manual assembly is provided on the valve body, and the manual assembly includes a mandrel mounting hole, a support ring, a mandrel, a limit hole, a latch mounting hole, a latch, a buffer spring, a hand wheel, a fixing screw and an O-ring; The valve body is provided with three push rod mounting holes on one side of the three valve cover mounting holes, push rods are slidably mounted in the three push rod mounting holes, a pillar is eccentrically mounted on the end of the push rod, a support ring is mounted on the outer side of the push rod mounting hole, a hand wheel is arranged on the outer sleeve of the push rod, the hand wheel is connected to the push rod by a buffer spring, a fixing screw is detachably mounted on the end of the hand wheel, the fixing screw passes through the hand wheel and is connected to the push rod.

[0012] As an optimal technical solution, a semi-ring slide groove is provided on the support ring, a limiting hole is provided on the support ring, the semi-ring slide groove is closer to the push rod mounting hole than the limiting hole, a latch mounting hole is provided on the push rod, a latch is installed in the latch mounting hole, and the latch passes through the limiting hole.

[0013] As a preferred technical solution, two O-rings are installed on the push rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the clever piping design in the valve body, the fluid flowing through the valve can be adjusted and controlled, and the flow adjustment range is large, which can reduce the number of valves installed, facilitate centralized management, and reduce the workload of workers. At the same time, the wide range of flow adjustment improves the versatility of the valve and can be used in production scenarios of different scales. 2. By setting up the valve cover assembly to control the opening and closing of the valve, the opening and closing of the valve can be controlled remotely, as well as the flow rate, to improve the accuracy and timeliness of fluid flow control.

[0015] 3. By setting up the manual component, the valve can be opened manually in the event of a power outage without affecting the normal production process. At the same time, it prevents the valve from being damaged by excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention; Figure 3 It is a schematic diagram of a first cutaway structure of the present invention; Figure 4 It is a second cross-sectional structural schematic diagram of the present invention; Figure 5 It is a third cross-sectional structural schematic diagram of the present invention; Figure 6 It is a fourth cross-sectional structural schematic diagram of the present invention; Figure 7 It is a schematic diagram of the partial cutaway structure of the present invention; Figure 8 For the present invention Figure 6 A schematic diagram of the enlarged structure at B in the middle; Fig. 9 For the present invention Figure 7 Schematic diagram of the enlarged structure at point A in the middle.

[0017] In the figure: 1, valve body; 2, inlet mounting hole; 3, outlet mounting hole; 4, side plug mounting hole; 5, positive plug mounting hole; 6, multi-purpose mounting hole; 7, side plug; 8, positive plug; 9, thick pipe; 10, through pipe; 11, valve cover mounting hole; 12, valve cover assembly; 13, manual assembly; 14, first regulating valve; 15, vertical pipe; 16, first connecting short pipe; 17, first liquid storage pipe; 18, second regulating valve; 19, semi-ring short pipe; 20, second liquid storage pipe; 21, built-in catheter; 22, second connecting short pipe; 23, ramp flow channel; 12. Valve cover assembly; 1201. Imported control valve cover; 1202. Ordinary valve cover; 1203. Mounting seat; 1204. Housing; 1205. Mounting through hole; 1206. Buffer ring; 1207. Moving iron core; 1208. Spring mounting hole; 1209. Return spring; 1210. Static iron core; 1211. Shockproof washer; 1212. Buffer sealing ring; 13. Manual assembly; 1301. Push rod mounting hole; 1302. Support ring; 1303. Push rod; 1304. Limit hole; 1305. Latch mounting hole; 1306. Latch; 1307. Buffer spring; 1308. Handwheel; 1309. Fixing screw; 1310. O-ring; 1311. Pillar; 1312. Semi-ring slide groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example: Figure 1-Figure 5 As shown, the present invention provides a technical solution for a three-valve group solenoid valve island, which is characterized in that: the three-valve group solenoid valve island includes a valve body 1, an inlet mounting hole 2 and two outlet mounting holes 3 are opened on the same side of the valve body 1, a positive plug mounting hole 5 and a multi-purpose mounting hole 6 are opened on the side of the valve body 1 away from the inlet mounting hole 2, a side plug mounting hole 4 is opened on the side of the valve body 1 adjacent to the positive plug mounting hole 5, three valve cover mounting holes 11 are opened above the valve body 1, and valve cover assemblies 12 are installed on the three valve cover mounting holes 11, and the inlet mounting hole 2, the two outlet mounting holes 3, the positive plug mounting hole 5, the multi-purpose mounting hole 6 and the side plug mounting hole 4 are all installed with thick pipes 9, and are connected through pipelines.

[0020] The fluid to be transported flows into the valve body 1 from the inlet mounting hole 2 and flows out from the two outlet mounting holes 3, while the multi-purpose mounting hole 6 can be used as the inlet or the outlet of the valve body 1 and can be adjusted as needed. The valve cover assembly 12 can adjust whether the valve body 1 is open, the number of outlets opened and the outlet flow rate. It has a simple structure, clear inlets and outlets, and a large flow adjustment range. It reduces the number of valves installed, facilitates centralized management, and reduces the workload of workers. At the same time, the wide range of flow adjustment improves the versatility of the valve, and it can be used in production scenarios of different scales.

[0021] A through pipe 10 is installed on the thick pipe 9 installed at the side plug mounting hole 4, and the thick pipes 9 at the multi-purpose mounting hole 6 and the positive plug mounting hole 5 are directly connected to the through pipe 10. A first connecting short pipe 16 is installed on the through pipe 10 near the inlet mounting hole 2, and a vertical pipe 15 is installed on the first connecting short pipe 16. A first liquid storage pipe 17 is provided on the outer sleeve of the vertical pipe 15. The lower end of the first liquid storage pipe 17 is connected to the upper end of the vertical pipe 15 and is sealed. The first liquid storage pipe 17 is communicated with the thick pipe 9 at the inlet mounting hole 2; The through pipe 10 is installed with a semi-annular short tube 19 near the two outlet mounting holes 3, and a second liquid storage tube 20 is installed on the upper end of the semi-annular short tube 19. A built-in catheter 21 is installed inside the second liquid storage tube 20, and the upper end of the built-in catheter 21 is connected to the lower end of the second liquid storage tube 20. The built-in catheter 21 is connected to the thick tube 9 at the outlet mounting hole 3 through a second connecting short tube 22.

[0022] The pipeline near the inlet mounting hole 2 is the first regulating valve 14 , and the two pipelines near the two outlet mounting holes 3 are the second regulating valves 18 . The connection between the second liquid storage pipe 20 and the built-in catheter 21 in the second regulating valve 18 adopts a slope flow channel 23 .

[0023] The fluid flows from the thick tube 9 at the inlet mounting hole 2 into the first liquid storage tube 17, and then flows from the first liquid storage tube 17 into the through tube 10 through the vertical tube 15. At this time, since the fluid can flow out of the valve body 1 through the thick tube 9 at the multi-purpose mounting hole 6, when the fluid flows through the two second regulating valves 18, the fluid will first flow into the second liquid storage tube 20, and then flow into the built-in conduit 21 along the slope flow channel 23, and finally flow from the built-in conduit 21 to the outlet mounting hole 3 and out of the valve body 1. Through the ingenious pipeline design, the orderly flow of the fluid in the valve body 1 is achieved. By controlling the valve cover assembly 12 at the first regulating valve 14, it is possible to control whether there is fluid passing through the entire valve body 1 and the inflow and outflow of the fluid at the multi-purpose mounting hole 6. By controlling the valve cover assembly 12 at the two second regulating valves 18, the outflow and flow rate of the fluid at the two outlet mounting holes 3 can be controlled, thereby further realizing the control function of the valve.

[0024] The positive plug mounting hole 5 is detachably provided with a positive plug 8, and the side plug mounting hole 4 is detachably provided with a side plug 7. After long-term use, blockage is inevitable in the valve body 1. At this time, by opening the positive plug 8 and the side plug 7, the pipeline in the valve body 1 can be cleaned and unblocked, which reduces the complexity of unblocking the valve body 1, reduces the maintenance workload, and extends the service life of the valve body.

[0025] like Figure 1-Figure 2 , Figure 4-Figure 5 and Figure 7As shown, the valve cover assembly 12 includes an inlet control valve cover 1201, a common valve cover 1202, a mounting seat 1203, a housing 1204, a mounting through hole 1205, a buffer ring 1206, a moving iron core 1207, a spring mounting hole 1208, a return spring 1209, a static iron core 1210, a shockproof washer 1211 and a buffer sealing ring 1212; The valve body 1 is provided with valve cover mounting holes 11, and mounting seats 1203 are installed above the three valve cover mounting holes 11. A shell 1204 is installed on the mounting seat 1203. A mounting through hole 1205 is provided inside the shell 1204. A coil is surrounded by the mounting through hole 1205. A buffer ring 1206 is installed in the mounting through hole 1205. The buffer ring 1206 partially extends into the mounting seat 1203. A moving iron core 1207 is slidably installed inside the buffer ring 1206. A spring mounting hole 1208 is provided on the moving iron core 1207. A static iron core 1210 is installed on the upper part of the mounting through hole 1205. The static iron core 1210 is connected to the moving iron core 1207 by a reset spring 1209. A movable gap is left between the static iron core 1210 and the moving iron core 1207, and a buffer sealing ring 1212 is installed at the end of the moving iron core 1207.

[0026] The inlet control valve cover 1201 is installed above the inlet mounting hole 2, and the other two are common valve covers 1202. The inlet control valve cover 1201 is connected to the mounting seat 1203 via a shockproof washer 1211.

[0027] In the initial state, the lower ends of the three moving iron cores 1207 respectively block the upper ends of the vertical pipe 15 and the two built-in guide tubes 21. At this time, the valve is in a closed state, and the fluid cannot enter and pass through the valve. When the coil of the inlet control valve cover 1201 is energized, due to the principle of electromagnetic induction, the moving iron core 1207 slides upward under the action of the Ampere force, compressing the reset spring 1209, canceling the blocking of the vertical pipe 15, and the fluid can flow into the valve body and out of the valve body 1 through the multi-purpose mounting hole 6. When the ordinary valve cover 1202 is energized, the built-in guide tubes 21 are opened by the same principle. The obstruction of the tube 21 is cancelled, and the fluid will flow out from the outlet mounting hole 3. When the coil is powered off, the Ampere force disappears, and under the downward elastic force of the reset spring 1209, the lower end of the moving iron core 1207 respectively blocks the vertical tube 15 and the built-in conduit 21 again. At the same time, the Ampere force can be controlled by controlling the current flowing through the coil, thereby controlling the upward movement distance of the moving iron core 1207 and the flow rate. The opening and closing of the valve and the flow rate can be controlled remotely, thereby improving the accuracy and timeliness of fluid flow control.

[0028] The buffer ring 1206 is used to connect the mounting through hole 1205 and the mounting seat 1203 to prevent the moving iron core 1207 from being stuck at the connection when moving up and down, while reducing the wear of the moving iron core 1207 and extending the service life.

[0029] The inlet control valve cover 1201 needs to perform overall control on all fluids entering the valve body 1, and requires greater working efficiency, so large vibrations are generated. By installing a shock-proof gasket 1211 between the inlet control valve cover 1201 and the mounting seat 1203, the damage to the valve caused by the vibration can be reduced, thereby extending the service life of the valve.

[0030] like Figure 6-Figure 9 As shown, the valve body 1 is provided with a manual assembly 13, and the manual assembly 13 includes a push rod mounting hole 1301, a support ring 1302, a push rod 1303, a limit hole 1304, a latch mounting hole 1305, a latch 1306, a buffer spring 1307, a hand wheel 1308, a fixing screw 1309 and an O-ring 1310; The valve body 1 is provided with three push rod mounting holes 1301 on one side of the three valve cover mounting holes 11, and push rods 1303 are slidably mounted in the three push rod mounting holes 1301. A pillar 1311 is eccentrically mounted on the end of the push rod 1303, and a support ring 1302 is mounted on the outer side of the push rod mounting hole 1301. A hand wheel 1308 is arranged on the outer sleeve of the push rod 1303, and the hand wheel 1308 is connected to the push rod 1303 by a buffer spring 1307. A fixing screw 1309 is detachably mounted on the end of the hand wheel 1308, and the fixing screw 1309 passes through the hand wheel 1308 and is connected to the push rod 1303.

[0031] The support ring 1302 is provided with a semi-ring groove 1312, and the support ring 1302 is provided with a limiting hole 1304. The semi-ring groove 1312 is closer to the top rod mounting hole 1301 than the limiting hole 1304. The top rod 1303 is provided with a latch mounting hole 1305, and a latch 1306 is installed in the latch mounting hole 1305, and the latch 1306 passes through the limiting hole 1304.

[0032] When the valve has no power, the valve cover assembly 12 can no longer open the valve. At this time, the hand wheel 1308 is pressed toward the valve cover mounting hole 11 so that the pillar 1311 and the moving iron core 1207 are located in the same vertical plane. At the same time, the pin 1306 moves forward to disengage from the limit hole 1304. Then, the hand wheel 1308 is manually rotated to drive the pillar 1311 to rotate through the push rod 1303. When the pillar 1311 rotates eccentrically along the push rod 1303, an upward displacement will be generated. At this time, the pillar can push the moving iron core 1207 upward to open the valve and allow the fluid to flow. This allows the valve to achieve the most basic circulation function when there is no power, and can respond to emergencies and avoid production losses.

[0033] The existence of the limiting hole 1304 can ensure that when the manual assembly 13 is not in use, the support 1311 will not be displaced, thereby affecting normal use, and at the same time, prevent the valve from being damaged by excessive pressure.

[0034] Two O-rings 1310 are installed on the push rod 1303 to prevent the conveying fluid from leaking from the manual assembly 13 .

[0035] Working principle of the present invention: The fluid to be transported flows into the valve body 1 from the inlet mounting hole 2 and flows out from the two outlet mounting holes 3, while the multi-purpose mounting hole 6 can be used as the inlet or the outlet of the valve body 1 and can be adjusted as needed. The valve cover assembly 12 can adjust whether the valve body 1 is open, the number of outlets opened and the outlet flow rate. It has a simple structure, clear inlets and outlets, and a large flow adjustment range. It reduces the number of valves installed, facilitates centralized management, and reduces the workload of workers. At the same time, the wide range of flow adjustment improves the versatility of the valve, and it can be used in production scenarios of different scales.

[0036] The fluid flows from the thick tube 9 at the inlet mounting hole 2 into the first liquid storage tube 17, and then flows from the first liquid storage tube 17 into the through tube 10 through the vertical tube 15. At this time, since the fluid can flow out of the valve body 1 through the thick tube 9 at the multi-purpose mounting hole 6, when the fluid flows through the two second regulating valves 18, the fluid will first flow into the second liquid storage tube 20, and then flow into the built-in conduit 21 along the slope flow channel 23, and finally flow from the built-in conduit 21 to the outlet mounting hole 3 and out of the valve body 1. Through the ingenious pipeline design, the orderly flow of the fluid in the valve body 1 is achieved. By controlling the valve cover assembly 12 at the first regulating valve 14, it is possible to control whether there is fluid passing through the entire valve body 1 and the inflow and outflow of the fluid at the multi-purpose mounting hole 6. By controlling the valve cover assembly 12 at the two second regulating valves 18, the outflow and flow rate of the fluid at the two outlet mounting holes 3 can be controlled, thereby further realizing the control function of the valve.

[0037] The positive plug mounting hole 5 is detachably provided with a positive plug 8, and the side plug mounting hole 4 is detachably provided with a side plug 7. After long-term use, blockage is inevitable in the valve body 1. At this time, by opening the positive plug 8 and the side plug 7, the pipeline in the valve body 1 can be cleaned and unblocked, which reduces the complexity of unblocking the valve body 1, reduces the maintenance workload, and extends the service life of the valve body.

[0038] In the initial state, the lower ends of the three moving iron cores 1207 respectively block the upper ends of the vertical pipe 15 and the two built-in guide tubes 21. At this time, the valve is in a closed state, and the fluid cannot enter and pass through the valve. When the coil of the inlet control valve cover 1201 is energized, due to the principle of electromagnetic induction, the moving iron core 1207 slides upward under the action of the Ampere force, compressing the reset spring 1209, canceling the blocking of the vertical pipe 15, and the fluid can flow into the valve body and out of the valve body 1 through the multi-purpose mounting hole 6. When the ordinary valve cover 1202 is energized, the built-in guide tubes 21 are opened by the same principle. The obstruction of the tube 21 is cancelled, and the fluid will flow out from the outlet mounting hole 3. When the coil is powered off, the Ampere force disappears, and under the downward elastic force of the reset spring 1209, the lower end of the moving iron core 1207 respectively blocks the vertical tube 15 and the built-in conduit 21 again. At the same time, the Ampere force can be controlled by controlling the current flowing through the coil, thereby controlling the upward movement distance of the moving iron core 1207 and the flow rate. The opening and closing of the valve and the flow rate can be controlled remotely, thereby improving the accuracy and timeliness of fluid flow control.

[0039] The buffer ring 1206 is used to connect the mounting through hole 1205 and the mounting seat 1203 to prevent the moving iron core 1207 from being stuck at the connection when moving up and down, while reducing the wear of the moving iron core 1207 and extending the service life.

[0040] The inlet control valve cover 1201 needs to perform overall control on all fluids entering the valve body 1, and requires greater working efficiency, so large vibrations are generated. By installing a shock-proof gasket 1211 between the inlet control valve cover 1201 and the mounting seat 1203, the damage to the valve caused by the vibration can be reduced, thereby extending the service life of the valve.

[0041] When the valve has no power, the valve cover assembly 12 can no longer open the valve. At this time, the hand wheel 1308 is pressed toward the valve cover mounting hole 11 so that the pillar 1311 and the moving iron core 1207 are located in the same vertical plane. At the same time, the pin 1306 moves forward to disengage from the limit hole 1304. Then, the hand wheel 1308 is manually rotated to drive the pillar 1311 to rotate through the push rod 1303. When the pillar 1311 rotates eccentrically along the push rod 1303, an upward displacement will be generated. At this time, the pillar can push the moving iron core 1207 upward to open the valve and allow the fluid to flow. This allows the valve to achieve the most basic circulation function when there is no power, and can respond to emergencies and avoid production losses.

[0042] The existence of the limiting hole 1304 can ensure that when the manual assembly 13 is not in use, the support 1311 will not be displaced, thereby affecting normal use, and at the same time, prevent the valve from being damaged by excessive pressure.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A three-valve group solenoid valve island, characterized in that: The three-valve group solenoid valve island comprises a valve body (1), wherein an inlet mounting hole (2) and two outlet mounting holes (3) are provided on the same side of the valve body (1), a positive plug mounting hole (5) and a multi-purpose mounting hole (6) are provided on the side of the valve body (1) away from the inlet mounting hole (2), a side plug mounting hole (4) is provided on the side of the valve body (1) adjacent to the positive plug mounting hole (5), three valve cover mounting holes (11) are provided above the valve body (1), and valve cover assemblies (12) are installed on the three valve cover mounting holes (11), and the inlet mounting hole (2), the two outlet mounting holes (3), the positive plug mounting hole (5), the multi-purpose mounting hole (6) and the side plug mounting hole (4) are all installed with thick pipes (9) and are connected through pipelines.

2. A three-valve group solenoid valve island according to claim 1, characterized in that: A through pipe (10) is installed on the thick pipe (9) installed at the side plug mounting hole (4); the thick pipes (9) at the multi-purpose mounting hole (6) and the main plug mounting hole (5) are directly connected to the through pipe (10); a first connecting short pipe (16) is installed on the through pipe (10) near the inlet mounting hole (2); a vertical pipe (15) is installed on the first connecting short pipe (16); a first liquid storage pipe (17) is provided on the outer sleeve of the vertical pipe (15); the lower end of the first liquid storage pipe (17) is connected to the upper end of the vertical pipe (15) and is sealed; the first liquid storage pipe (17) is in communication with the thick pipe (9) at the inlet mounting hole (2); The through pipe (10) is provided with a semi-circular short pipe (19) near the two outlet mounting holes (3); a second liquid storage pipe (20) is provided at the upper end of the semi-circular short pipe (19); a built-in conduit (21) is installed inside the second liquid storage pipe (20); the upper end of the built-in conduit (21) is connected to the lower end of the second liquid storage pipe (20); and the built-in conduit (21) is connected to the thick pipe (9) at the outlet mounting hole (3) via a second connecting short pipe (22).

3. A three-valve group solenoid valve island according to claim 2, characterized in that: The pipeline near the inlet mounting hole (2) is a first regulating valve (14), and the two pipelines near the two outlet mounting holes (3) are second regulating valves (18). The connection between the second liquid storage pipe (20) and the built-in conduit (21) in the second regulating valve (18) adopts a sloped flow channel (23).

4. A three-valve group solenoid valve island according to claim 3, characterized in that: A front plug (8) is detachably mounted on the front plug mounting hole (5), and a side plug (7) is detachably mounted on the side plug mounting hole (4).

5. The three-valve group solenoid valve island according to claim 1, characterized in that: The valve cover assembly (12) comprises an inlet control valve cover (1201), a common valve cover (1202), a mounting seat (1203), a housing (1204), a mounting through hole (1205), a buffer ring (1206), a moving iron core (1207), a spring mounting hole (1208), a return spring (1209), a stationary iron core (1210), a shockproof washer (1211) and a buffer sealing ring (1212); The valve body (1) is provided with a valve cover mounting hole (11), and a mounting seat (1203) is mounted above each of the three valve cover mounting holes (11). A shell (1204) is mounted on the mounting seat (1203), and a mounting through hole (1205) is provided inside the shell (1204). A coil is surrounded by a circle around the mounting through hole (1205), and a buffer ring (1206) is mounted inside the mounting through hole (1205). A portion of the buffer ring (1206) extends into the mounting seat (1203). A moving iron core (1207) is slidably mounted inside the buffer ring (1206); a spring mounting hole (1208) is provided on the moving iron core (1207); a static iron core (1210) is mounted on the upper portion of the mounting through hole (1205); the static iron core (1210) and the moving iron core (1207) are connected via a return spring (1209); a movable gap is left between the static iron core (1210) and the moving iron core (1207); and a buffer sealing ring (1212) is mounted on the end of the moving iron core (1207).

6. A three-valve group solenoid valve island according to claim 5, characterized in that: The inlet control valve cover (1201) is installed above the inlet mounting hole (2), and the other two are common valve covers (1202). The inlet control valve cover (1201) and the mounting seat (1203) are connected via a shock-proof washer (1211).

7. The three-valve group solenoid valve island according to claim 6, characterized in that: The valve body (1) is provided with a manual assembly (13), the manual assembly (13) comprising a push rod mounting hole (1301), a support ring (1302), a push rod (1303), a limit hole (1304), a latch mounting hole (1305), a latch (1306), a buffer spring (1307), a hand wheel (1308), a fixing screw (1309) and an O-ring (1310); The valve body (1) is provided with three push rod mounting holes (1301) on one side of the three valve cover mounting holes (11), and push rods (1303) are slidably mounted in the three push rod mounting holes (1301), and a support (1311) is eccentrically mounted on the end of the push rod (1303), and a support ring (1302) is mounted on the outside of the push rod mounting hole (1301). A hand wheel (1308) is disposed on the outer sleeve of the push rod (1303), and the hand wheel (1308) is connected to the push rod (1303) via a buffer spring (1307), and a fixing screw (1309) is detachably mounted on the end of the hand wheel (1308), and the fixing screw (1309) passes through the hand wheel (1308) and is connected to the push rod (1303).

8. The three-valve group solenoid valve island according to claim 7, characterized in that: The support ring (1302) is provided with a semi-ring slide groove (1312), the support ring (1302) is provided with a limiting hole (1304), the semi-ring slide groove (1312) is closer to the top rod mounting hole (1301) than the limiting hole (1304), the top rod (1303) is provided with a latch mounting hole (1305), a latch (1306) is installed in the latch mounting hole (1305), and the latch (1306) passes through the limiting hole (1304).

9. A three-valve group solenoid valve island according to claim 8, characterized in that: Two O-rings (1310) are installed on the push rod (1303).

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