A pilot valve assembly mounting structure for a dual solenoid electromagnetic valve

Abstract

The utility model discloses a pilot valve subassembly mounting structure of double electric control solenoid valve, including pilot valve guide seat, pilot valve subassembly and apron, pilot valve guide seat fixed connection is in pilot seat, and pilot valve guide seat is equipped with the installation cavity of lower end opening, pilot valve subassembly includes first pilot valve and second pilot valve, and first pilot valve and second pilot valve adjacent end are equipped with connecting structure, and first pilot valve and second pilot valve lower end are equipped with power foot respectively, apron is equipped with electrical joint and two sockets, and two sockets and two power foot one to one correspondence, and electrical joint and two sockets electric connection, when assembling, first through connecting structure and then first pilot valve and second pilot valve pre -assemble as a whole, again, the pre -assembled pilot valve group is inserted to the installation cavity, finally, apron and pilot valve guide seat fixed connection, when power foot is inserted to the socket in corresponding, through above -mentioned setting, and assembling is more convenient, efficient.

Description

Technical Field

[0001] This utility model relates to the technical field of solenoid valves, and in particular to a pilot valve assembly mounting structure for a dual-electrically controlled solenoid valve. Background Technology

[0002] A pilot-operated solenoid valve is a device that switches the operation of the main valve using compressed air pressure. It belongs to a composite control system of electromagnetic control and pneumatic control. This valve outputs pilot control air pressure through a solenoid-operated pilot directional valve, which drives the main valve core to achieve the switching function. According to the control method, it can be divided into single-electro-controlled and dual-electro-controlled valves. According to the source of pilot pressure, it can be divided into internal pilot and external pilot.

[0003] When installing the pilot valve assembly of the existing dual-electro-controlled solenoid valve, the pilot valves generally need to be assembled one by one to the pilot seat. That is, one pilot valve is assembled to the pilot seat first, then the other pilot valve is assembled to the pilot seat, and finally the cover plate is connected to the pilot valves one by one. This method of assembling the pilot valve is inconvenient, so it needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a pilot valve assembly installation structure for a dual-electro-controlled solenoid valve, which makes assembly more convenient and efficient.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pilot valve assembly mounting structure for a dual-electro-controlled solenoid valve, comprising... Pilot valve guide seat, the pilot valve guide seat is fixedly connected to the pilot seat, and the pilot valve guide seat has a mounting cavity with an opening at the lower end; The pilot valve assembly includes a first pilot valve and a second pilot valve. The adjacent ends of the first pilot valve and the second pilot valve are provided with a connection structure. The lower ends of the first pilot valve and the second pilot valve are respectively provided with power supply pins. The cover plate is equipped with an electrical connector and two sockets, each corresponding to a power pin, and the electrical connector is electrically connected to the two sockets. During assembly, the first and second pilot valves are pre-assembled into one unit through the connecting structure. Then, the pre-assembled pilot valve assembly is inserted into the mounting cavity. Finally, the cover plate is fixedly connected to the pilot valve guide seat, and the power pin is inserted into the corresponding socket.

[0006] Furthermore, the pilot valve guide seat is provided with circumferentially arranged limiting ribs on the inner wall of the mounting cavity, and the limiting ribs limit the pilot valve assembly along the insertion direction perpendicular to the pilot valve assembly.

[0007] Furthermore, a guide portion is provided on the side of the limiting rib near the opening, and the guide portion is used to guide the pilot valve assembly into the mounting cavity.

[0008] Furthermore, the connection structure is a plug-in structure or a snap-fit ​​structure.

[0009] Furthermore, when the connection structure is a plug-in structure, one of the first pilot valve and the second pilot valve is provided with a plug, and the other pilot valve is provided with a slot that is plugged into the plug. The first pilot valve and the second pilot valve can be pre-assembled side by side in the same horizontal plane by the plug-in and slot engagement.

[0010] Furthermore, multiple insertion posts are provided, and each slot corresponds to one insertion post.

[0011] Furthermore, the pilot valve guide seat is provided with an annular groove along the opening path on the outer periphery of the corresponding mounting cavity opening. A sealing element is installed in the annular groove. When the cover plate is fixedly connected to the pilot valve guide seat, the sealing element is sandwiched between the cover plate and the pilot valve guide seat.

[0012] Furthermore, the pilot valve guide seat and the cover plate have an assembly hole, and the pilot valve guide seat and the cover plate are fixedly connected by fasteners that cooperate with the assembly hole.

[0013] In summary, this utility model has the following beneficial effects: The pilot valve assembly installation structure of this utility model allows for easier and more efficient assembly. During assembly, the first and second pilot valves are pre-assembled into one unit via a connecting structure. Then, the pre-assembled pilot valve assembly is inserted into the mounting cavity. Finally, the cover plate is fixedly connected to the pilot valve guide seat. At this point, the power pin is inserted into the corresponding socket, making the assembly more convenient and efficient. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention.

[0015] Figure 2 This is a structural schematic diagram of the sealing element of this utility model.

[0016] Figure 3 This is a schematic diagram of the socket and power pins of this utility model.

[0017] Figure 4 This is a schematic diagram of the connection structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the limiting rib of this utility model.

[0019] In the diagram: 10, pilot valve guide seat; 11, mounting cavity; 12, limiting rib; 121, guide part; 20, pilot valve assembly; 21, first pilot valve; 22, second pilot valve; 23, connecting structure; 231, insert; 232, slot; 24, power pin; 30, cover plate; 31, electrical connector; 32, socket; 40, seal; 50, pilot seat. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] like Figures 1-5 As shown, a pilot valve assembly mounting structure for a dual-electro-controlled solenoid valve includes a pilot valve guide seat 10, a pilot valve assembly 20, and a cover plate 30, which constitute the basic structure of this utility model.

[0024] The pilot valve guide seat 10 is fixedly connected to the pilot seat 50, and the other end of the pilot seat 50 is connected to the valve body. The pilot valve guide seat 10 is provided with a mounting cavity 11 with an opening at the lower end. Of course, as an equivalent alternative, the opening can also be located at the upper end, front end, rear end, or left end. Preferably, the opening is located at the lower end of the pilot valve guide seat 10.

[0025] The pilot valve assembly 20 includes a first pilot valve 21 and a second pilot valve 22. The adjacent ends of the first pilot valve 21 and the second pilot valve 22 are provided with a connecting structure 23. Through the connecting structure 23, the first pilot valve 21 and the second pilot valve 22 can be pre-assembled into one unit. The lower ends of the first pilot valve 21 and the second pilot valve 22 are respectively provided with power supply pins 24.

[0026] The cover plate 30 is provided with an electrical connector 31 and two sockets 32. The two sockets 32 correspond one-to-one with the two power pins 24. The electrical connector 31 is electrically connected to the two sockets 32. The electrical connector is preferably a 4-pin connector.

[0027] During assembly, the first pilot valve 21 and the second pilot valve 22 are pre-assembled into one unit through the connecting structure 23. Then, the pre-assembled pilot valve assembly 20 is inserted into the mounting cavity 11. Finally, the cover plate 30 is fixedly connected to the pilot valve guide seat 10. At this time, the power pin 24 is inserted into the corresponding socket 32.

[0028] In some embodiments, the pilot valve guide seat 10 is provided with a circumferentially arranged limiting rib 12 on the inner wall of the mounting cavity 11. The limiting rib 12 limits the pilot valve assembly 20 along the insertion direction perpendicular to the pilot valve assembly 20, that is, limits the pilot valve assembly 20 in the left-right direction and the front-back direction.

[0029] In some embodiments, the limiting rib 12 is provided with a guide portion 121 near the opening, and the guide portion 121 is used to guide the pilot valve assembly 20 into the mounting cavity 11.

[0030] In some embodiments, one of the first pilot valve 21 and the second pilot valve 22 is provided with a plug 231, and the other pilot valve is provided with a slot 232 that is inserted and engaged with the plug 231. The first pilot valve 21 and the second pilot valve 22 can be pre-assembled side by side in the same manner by the plug 231 and the slot 232.

[0031] In some embodiments, multiple insertion posts 231 are provided, and the slots 232 correspond one-to-one with the insertion posts 231. Specifically, the insertion posts 231 are not at the same vertical height. This arrangement can improve the pre-installation stability of the first pilot valve 21 and the second pilot valve 22.

[0032] In some embodiments, the connection structure 23 is a plug-in structure or a snap-fit ​​structure. When the connection structure 23 is a plug-in structure, the pilot valve guide seat 10 is provided with an annular groove along the opening path on the outer periphery of the corresponding mounting cavity 11 opening. A sealing element 40 is installed in the annular groove. When the cover plate 30 is fixedly connected to the pilot valve guide seat 10, the sealing element 40 is sandwiched between the cover plate 30 and the pilot valve guide seat 10. At the same time, the pilot valve assembly 20 is positioned in the vertical direction by the pilot valve guide seat 10 and the cover plate 30.

[0033] In some embodiments, the pilot valve guide seat 10 and the cover plate 30 are provided with an assembly hole, and the pilot valve guide seat 10 and the cover plate 30 are fixedly connected by fasteners that cooperate with the assembly hole.

[0034] In summary, this utility model has the following beneficial effects: In the pilot valve assembly installation structure of this utility model, during assembly, the first pilot valve 21 and the second pilot valve 22 are pre-assembled into one unit through the connecting structure 23, then the pre-assembled pilot valve assembly 20 is inserted into the mounting cavity 11, and finally the cover plate 30 is fixedly connected to the pilot valve guide seat 10. At this time, the power pin 24 is inserted into the corresponding socket 32, making the assembly more convenient and efficient.

[0035] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pilot valve assembly mounting structure for a dual-electro-controlled solenoid valve, characterized in that: include Pilot valve guide seat (10), the pilot valve guide seat (10) is provided with a mounting cavity (11) with an opening at the lower end; Pilot valve assembly (20) includes a first pilot valve (21) and a second pilot valve (22). The first pilot valve (21) and the second pilot valve (22) are provided with a connection structure (23) at their adjacent ends. The first pilot valve (21) and the second pilot valve (22) are respectively provided with power supply pins (24) at their lower ends. The cover plate (30) is provided with an electrical connector (31) and two sockets (32). The two sockets (32) correspond one-to-one with the two power pins (24). The electrical connector (31) is electrically connected to the two sockets (32). During assembly, the first pilot valve (21) and the second pilot valve (22) are pre-assembled into one unit through the connecting structure (23), and then the pre-assembled pilot valve assembly (20) is inserted into the mounting cavity (11). Finally, the cover plate (30) is fixedly connected to the pilot valve guide seat (10), and at this time, the power supply pin (24) is inserted into the corresponding socket (32).

2. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 1, characterized in that: The pilot valve guide seat (10) is provided with a circumferentially arranged limiting rib (12) on the inner wall of the mounting cavity (11). The limiting rib (12) limits the pilot valve assembly (20) in the insertion direction perpendicular to the pilot valve assembly (20).

3. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 2, characterized in that: The limiting rib (12) is provided with a guide part (121) on the side near the opening. The guide part (121) is used to guide the pilot valve assembly (20) into the mounting cavity (11).

4. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 1, characterized in that: The connection structure (23) is a plug-in structure or a snap-fit ​​structure.

5. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 4, characterized in that: When the connection structure (23) is a plug-in structure, one of the first pilot valve (21) and the second pilot valve (22) is provided with a plug (231), and the other pilot valve is provided with a slot (232) that is plugged into the plug (231). The first pilot valve (21) and the second pilot valve (22) can be pre-assembled side by side in the same horizontal position by plugging into the plug (231) and engaging with the slot (232).

6. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 5, characterized in that: Multiple insertion posts (231) are provided, and each slot (232) corresponds to one insertion post (231).

7. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 5, characterized in that: The pilot valve guide seat (10) is provided with an annular groove along the opening path on the outer periphery of the corresponding mounting cavity (11). A sealing element (40) is installed in the annular groove. When the cover plate (30) is fixedly connected to the pilot valve guide seat (10), the sealing element (40) is sandwiched between the cover plate (30) and the pilot valve guide seat (10).

8. The pilot valve assembly mounting structure of a dual-electro-controlled solenoid valve according to claim 1, characterized in that: The pilot valve guide seat (10) and the cover plate (30) have assembly holes, and the pilot valve guide seat (10) and the cover plate (30) are fixedly connected by fasteners that cooperate with the assembly holes.

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