Plate type valve terminal

Abstract

The utility model relates to a plate type valve terminal which comprises a valve plate, a guide rail assembly, a pilot electromagnetic valve assembly and a circuit board control module, the pilot electromagnetic valve assembly comprises a main valve body, a pilot valve body, an end cover, a pilot head, a piston, an electromagnet, a valve element assembly, a pilot piston and a pilot electromagnet, and an air guide hole communicated with a valve cavity is formed in the pilot head. A pilot hole communicated with the pilot air cavity is formed in the pilot valve body, an air inlet, a first air outlet and a second air outlet are formed in one side of the valve plate, three vent holes matched with the valve element assembly are formed in one side of the main valve body, and the three vent holes are communicated between the valve cavity and the air inlet, between the valve cavity and the first air outlet and between the valve cavity and the second air outlet respectively. And a first exhaust port and a second exhaust port are respectively formed in the other side of the valve plate. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and good protection performance.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic components, in particular to a plate-type valve island. Background Art

[0002] A valve island is an integrated control component that integrates the signal input / output and control functions of multiple electric control valves. It is connected to a PLC (programmable logic controller) through fieldbus technology or communication methods to achieve centralized control of multiple valves. This control method not only simplifies the wiring, but also improves the reliability and maintainability of the system. Valve islands are widely used in a wide range of fields, including but not limited to the chemical, pharmaceutical, and food processing industries, and are used to control the production processes of various fluid media. In addition, valve islands also play an important role in the field of new energy, such as fluid control systems for solar and wind power equipment. The structural design of the valve core assembly of the existing plate-type valve island is relatively complex, and the assembly is relatively cumbersome. In addition, the plate-type valve island also has the defects of unreliable working performance and poor protection performance. Summary of the invention

[0003] The utility model aims to overcome the defects of the prior art and provide a plate-type valve island with simple structure, stable and reliable performance, convenient assembly and good protection performance.

[0004] To achieve the above-mentioned purpose, the utility model adopts a plate-type valve island, including a valve plate, a guide rail assembly arranged on the valve plate, a pilot solenoid valve assembly arranged on the valve plate, and a circuit board control module arranged on the valve plate. The pilot solenoid valve assembly includes a main valve body arranged on the valve plate, a pilot valve body arranged side by side with the main valve body, an end cover arranged on one end of the main valve body and the pilot valve body, a pilot head arranged on the other end of the main valve body, a piston arranged in a pilot cavity of the pilot head, an electromagnet arranged on one end of the pilot head, a valve core assembly arranged in the valve cavity of the main valve body and coordinated with the piston, a pilot piston movably arranged in the pilot air cavity of the end cover and used to drive the valve core assembly, and a pilot piston arranged at the other end of the pilot valve body. A pilot electromagnet on the pilot head, an air guide hole connected to the valve cavity is arranged on the pilot head, a pilot hole connected to the pilot air cavity is arranged on the pilot valve body, an air inlet, a first air outlet and a second air outlet are respectively arranged on one side of the valve plate, three air vents matching with the valve core assembly are arranged on one side of the main valve body, the three air vents are respectively connected between the valve cavity and the air inlet, the first air outlet and the second air outlet, a first exhaust port and a second exhaust port are respectively arranged on the other side of the valve plate, two exhaust vents connected between the valve cavity and the first exhaust port and the second exhaust port are arranged on the main valve body, and a pilot air vent connected to the air inlet is arranged on the pilot valve body.

[0005] The beneficial effects of the above structure are as follows: The spool assembly is designed with a modular structure, which facilitates the modular assembly of the spool assembly with the main valve body and the end cover, and the assembly efficiency is higher. During operation, when the coil of the electromagnet loses power and the pilot electromagnet is energized, the air inlet admits air, and the gas in the pilot vent hole of the pilot valve body enters the pilot air chamber, increasing the pressure in the pilot air chamber. The pilot piston drives the spool assembly to act. At this time, the air inlet is connected to the first exhaust port, and the second exhaust port is connected to the second air outlet. When the electromagnet coil is energized and the pilot electromagnet loses power, the gas enters the pilot chamber, the air pressure in the pilot chamber increases and drives the piston to act, and the piston drives the spool assembly to act. At this time, the air inlet admits air, the air inlet is connected to the second exhaust hole, and the first exhaust hole is connected to the first air outlet. Therefore, this plate-type valve island has the advantages of simple structure, stable and reliable performance, convenient assembly, and good protection performance.

[0006] Particularly, the spool assembly includes a spool disposed in the main valve body and a plurality of sealing rings. The spool is respectively provided with the plurality of sealing rings corresponding to three vent holes and two exhaust vent holes. Both ends of the spool respectively have two boss portions that abut against the piston and the pilot piston. The spool is linked and cooperated with the piston and the pilot piston through the two boss portions, so as to ensure more reliable transmission between the spool assembly and the piston and the pilot piston.

[0007] Particularly, five sealing grooves are respectively provided on the valve plate corresponding to three vent holes and two exhaust vent holes. Five sealing washers are respectively disposed in the five sealing grooves. The five sealing washers respectively abut against the main valve body and form a sealing fit between the valve plate and the main valve body. Five sealing washers are provided between the valve plate and the main valve body, so as to ensure the sealing performance between the valve plate and the main valve body and better protection performance.

[0008] Particularly, the guide rail assembly includes a guide rail plate and a guide rail disposed on the valve plate. Guide rail grooves that cooperate with the guide rail are respectively provided on both sides of the guide rail plate. Guide flanges that cooperate with the guide rail grooves are respectively provided on both sides of the guide rail. The guide flanges are slidably disposed in the guide rail grooves and form a sliding connection and cooperation between the guide rail plate and the guide rail. The guide rail assembly can realize the rail-mounted installation of this plate-type valve island, and the installation is more convenient.

[0009] Particularly, the circuit board control module includes a box body disposed on the valve plate and a circuit board assembly disposed in the box body. An annular sealing groove is provided on the box body, and a waterproof sealing ring that is in sealing fit with the valve plate is disposed in the annular sealing groove. The box body of the circuit board control module is in sealing fit with the valve plate through the sealing ring, so as to improve the sealing performance between the circuit board control module and the valve plate and better protection performance. Description of the Drawings

[0010] Figure 1It is a stereogram of an embodiment of the utility model.

[0011] Figure 2 This is an assembly diagram of the main valve body and the valve plate of an embodiment of the utility model.

[0012] Figure 3 This is an assembly diagram of the pilot valve body and the valve plate of an embodiment of the utility model.

[0013] Figure 4 This is an assembly diagram of the pilot solenoid valve assembly according to an embodiment of the utility model.

[0014] Figure 5 This is an assembly diagram of the circuit board control module and the valve plate of an embodiment of the utility model. DETAILED DESCRIPTION

[0015] like Figures 1 to 5 As shown, the embodiment of the utility model is a plate-type valve island, comprising a valve plate 10, a guide rail assembly 20 arranged on the valve plate 10, a pilot solenoid valve assembly 30 arranged on the valve plate 10, and a circuit board control module 40 arranged on the valve plate 10, wherein the pilot solenoid valve assembly 30 comprises a main valve body 31 arranged on the valve plate 10, a pilot valve body 32 arranged side by side with the main valve body 31, an end cover 33 arranged on one end of the main valve body 31 and the pilot valve body 32, a pilot head 34 arranged on the other end of the main valve body 31, a piston 35 arranged in a pilot cavity 340 of the pilot head 34, an electromagnet 36 arranged on one end of the pilot head 34, a valve core assembly 37 arranged in a valve cavity 310 of the main valve body 31 and linked with the piston 35, a pilot piston 38 movably arranged in a pilot air cavity 330 of the end cover 33 and used to drive the valve core assembly 37, and a pilot electromagnet 39 arranged on the other end of the pilot valve body 32. The pilot head 34 is provided with an air guide hole 341 connected to the valve cavity 310, the pilot valve body 32 is provided with a pilot hole 321 connected to the pilot air cavity 330, the valve plate 10 is provided with an air inlet 101, a first air outlet 102, and a second air outlet 103 on one side, and the main valve body 31 is provided with three air vents 311 matched with the valve core assembly 37 on one side, and the three air vents 311 are respectively connected to A first exhaust port 104 and a second exhaust port 105 are respectively arranged on the other side of the valve plate 10 between the valve cavity 310 and the air inlet 101, the first air outlet 102, and the second air outlet 103. The main valve body 31 is provided with two exhaust vents 312 connecting the valve cavity 310 and the first exhaust port 104 and the second exhaust port 105. The pilot valve body 32 is provided with a pilot vent 322 connected with the air inlet 101.

[0016] like Figure 2 , 3, as shown in FIGS. 4, the spool assembly 37 includes a spool 371 disposed in the main valve body 31 and a plurality of sealing rings 372. The spool 371 is provided with the plurality of sealing rings 372 corresponding to three air vents 311 and two exhaust air vents 312 respectively. Both ends of the spool 371 have two boss portions 3711 that abut against the piston 35 and the pilot piston 38 respectively. The spool is linked and cooperated with the piston and the pilot piston through the two boss portions, so as to ensure more reliable transmission between the spool assembly and the piston and the pilot piston. The valve plate 10 is provided with five sealing grooves 106 corresponding to the three air vents 311 and the two exhaust air vents 312 respectively. Five sealing washers 107 are respectively disposed in the five sealing grooves 106. The five sealing washers 107 respectively abut against the main valve body 31 and constitute the sealing cooperation between the valve plate 10 and the main valve body 31. Five sealing washers are provided between the valve plate and the main valve body, so as to ensure the sealing performance between the valve plate and the main valve body and better protection performance.

[0017] As Figure 1 and 4 shown, the guide rail assembly 20 includes a guide rail plate 21 and a guide rail 22 disposed on the valve plate 10. Guide rail grooves 211 that cooperate with the guide rail 22 are respectively provided on both sides of the guide rail plate 21. Guide flanges 221 that cooperate with the guide rail grooves 211 are respectively provided on both sides of the guide rail 22. The guide flanges 221 are slidably disposed in the guide rail grooves 211 and constitute the sliding connection and cooperation between the guide rail plate 21 and the guide rail 22. The guide rail assembly can realize the rail-mounted installation of the plate-type valve island, and the installation is more convenient. The circuit board control module 40 includes a box body 41 disposed on the valve plate 10 and a circuit board assembly 42 disposed in the box body 41. An annular sealing groove 411 is provided on the box body 41. A waterproof sealing ring 43 that is in sealing cooperation with the valve plate 10 is disposed in the annular sealing groove 411. The box body of the circuit board control module is in sealing cooperation with the valve plate through the sealing ring, so as to improve the sealing performance between the circuit board control module and the valve plate and better protection performance.

[0018] The spool assembly adopts a modular structure design, which facilitates the modular assembly of the spool assembly with the main valve body and the end cover, and has higher assembly efficiency. During operation, when the coil of the electromagnet loses power and the pilot electromagnet is energized, the air inlet admits air, and the gas in the pilot vent hole of the pilot valve body enters the pilot air chamber, increasing the pressure in the pilot air chamber. The pilot piston drives the spool assembly to act. At this time, the air inlet is connected to the first exhaust port, and the second exhaust port is connected to the second air outlet. When the electromagnet coil is energized and the pilot electromagnet loses power, the gas enters the pilot chamber, the air pressure in the pilot chamber increases and drives the piston to act, and the piston drives the spool assembly to act. At this time, the air inlet admits air, the air inlet is connected to the second exhaust hole, and the first exhaust hole is connected to the first air outlet. Therefore, this plate valve island has the advantages of simple structure, stable and reliable performance, convenient assembly, and good protection performance.

Claims

1. A plate-type valve island, characterized in that: It includes a valve plate, a guide rail assembly arranged on the valve plate, a pilot solenoid valve assembly arranged on the valve plate, and a circuit board control module arranged on the valve plate. The pilot solenoid valve assembly includes a main valve body arranged on the valve plate, a pilot valve body arranged side by side with the main valve body, an end cover arranged on one end of the main valve body and the pilot valve body, a pilot head arranged on the other end of the main valve body, a piston arranged in the pilot cavity of the pilot head, an electromagnet arranged on one end of the pilot head, a valve core assembly arranged in the valve cavity of the main valve body and linked with the piston, a pilot piston movably arranged in the pilot air cavity of the end cover and used to drive the valve core assembly, and a pilot electromagnet arranged on the other end of the pilot valve body. An air guide hole connected to the valve cavity is arranged on the pilot head, a pilot hole connected to the pilot air cavity is arranged on the pilot valve body, an air inlet, a first air outlet and a second air outlet are respectively arranged on one side of the valve plate, three air vents matching with the valve core assembly are arranged on one side of the main valve body, the three air vents are respectively connected between the valve cavity and the air inlet, the first air outlet and the second air outlet, a first exhaust port and a second exhaust port are respectively arranged on the other side of the valve plate, two exhaust vents connected between the valve cavity and the first exhaust port and the second exhaust port are arranged on the main valve body, and a pilot vent connected to the air inlet is arranged on the pilot valve body.

2. The panel valve island according to claim 1, characterized in that: The valve core assembly includes a valve core and multiple sealing rings arranged in the main valve body. The multiple sealing rings are respectively arranged at the three air vents and two exhaust air vents on the valve core. The two ends of the valve core have two bosses that abut against the piston and the pilot piston.

3. The panel valve island according to claim 2, characterized in that: The valve plate is provided with five sealing grooves corresponding to the three ventilation holes and the two exhaust ventilation holes, and five sealing gaskets are respectively provided in the five sealing grooves. The five sealing gaskets respectively abut against the main valve body and constitute a sealing fit between the valve plate and the main valve body.

4. The panel valve island according to claim 1 or 2, characterized in that: The guide rail assembly includes a guide rail plate and a guide rail arranged on the valve plate. Guide rail grooves matching the guide rails are respectively arranged on both sides of the guide rail plate. Guide flanges matching the guide rail grooves are respectively arranged on both sides of the guide rail. The guide flanges are slidably arranged in the guide rail grooves and constitute a sliding connection between the guide rail plate and the guide rail.

5. The panel valve island according to claim 1 or 2, characterized in that: The circuit board control module comprises a box body arranged on the valve plate and a circuit board assembly arranged in the box body. The box body is provided with an annular sealing groove, and a waterproof sealing ring which cooperates with the valve plate in sealing is arranged in the annular sealing groove.

Images