Proportional solenoid valve

Abstract

The utility model discloses a proportional solenoid valve, include: split seat gland and proportional valve cover, split seat gland and proportional valve cover fixed assembly, the split seat gland and proportional valve cover junction place clamping proportional valve split seat, proportional valve split seat annular equidistance array several series connection holes, series connection hole installs proportional valve pilot valve mouth, proportional valve cover upper surface sets up the assembly hole of corresponding series connection hole number, every assembly hole all installs solenoid valve control module, and solenoid valve control module controls proportional valve pilot valve mouth's opening and closing. The utility model discloses through setting up multiple solenoid valve control module respectively control corresponding proportional valve pilot valve mouth, can realize multichannel independent or combination control, significantly promote the precision and flexibility of flow regulation, effectively solved the problem of traditional single valve mouth control precision deficiency, can according to actual demand nimble configuration solenoid valve control module's number, adapts to different flow level and control requirement's application scene, has good versatility and expansibility.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, specifically a proportional electromagnetic valve. Background Technology

[0002] Proportional solenoid valves, as commonly used fluid control components, are widely applied in industrial automation, hydraulic control systems, precision irrigation, and other fields. Currently, most proportional solenoid valves on the market employ a single electromagnetic control unit with a single valve port, controlling the valve core displacement by adjusting the current to achieve proportional regulation of fluid flow. However, this type of structure still has the following problems in practical applications: 1. Limited flow control accuracy: Due to the reliance on a single solenoid valve unit, problems such as insensitive control and delayed response are prone to occur in situations with small flow rates or requiring high-precision adjustment. 2. Complex structure and low reliability: Some proportional valves use complex mechanical or electronic feedback mechanisms, which increases manufacturing costs and failure rate.

[0003] Therefore, we propose a proportional solenoid valve to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a proportional solenoid valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a proportional solenoid valve, comprising: a sub-seat cover and a proportional valve cover, the sub-seat cover and the proportional valve cover being fixedly assembled, the proportional valve sub-seat being clamped at the joint of the sub-seat cover and the proportional valve cover, the proportional valve sub-seat dividing the space inside the sub-seat cover and the proportional valve cover into upper and lower parts; The proportional valve seat has a ring-shaped, equidistant array of several series holes, and the proportional valve pilot port is installed in the series holes. The upper surface of the proportional valve cover has assembly holes corresponding to the number of series holes. Each assembly hole is equipped with a solenoid valve control module, which controls the opening and closing of the proportional valve pilot port.

[0006] Preferably, the sub-seat cover has a built-in lower cavity and a lower flow pipe, and the lower cavity and the lower flow pipe are connected.

[0007] Preferably, the proportional valve cover is provided with an upper chamber and an upper flow pipe, and the upper chamber and the upper flow pipe are connected.

[0008] Preferably, the pilot valve port of the proportional valve connects the upper chamber and the lower chamber.

[0009] Preferably, the solenoid valve control module includes a module housing, with an iron core outer tube running through the module housing. A gasket and a nut are provided at the upper end of the iron core outer tube, wherein the nut is threadedly connected to the iron core outer tube, and the lower end of the iron core outer tube is installed on the assembly hole. The nut and the iron core outer tube are threadedly engaged to lock the module housing onto the proportional valve cover.

[0010] Preferably, the iron core is movably installed inside the outer tube of the iron core, a spring is sleeved on the outside of the iron core, a plug is installed at the lower end of the iron core, the plug descends to block the pilot valve port of the proportional valve, and the solenoid valve control module also includes a digital water curtain coil, which controls the outer tube of the iron core to generate magnetic force to attract the iron core when energized.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up multiple solenoid valve control modules to control the corresponding proportional valve pilot ports, multi-channel independent or combined control can be achieved, significantly improving the accuracy and flexibility of flow regulation and effectively solving the problem of insufficient accuracy of traditional single valve port control. 2. The series of orifices and solenoid valve control modules arranged in a ring array enable multi-channel control within a limited space, reducing the overall size and facilitating installation and system integration. 3. The number of solenoid valve control modules can be flexibly configured according to actual needs, adapting to application scenarios with different flow levels and control requirements, and possessing good versatility and expandability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the split seat cover and the proportional valve cover in this utility model; Figure 3 This is a schematic diagram of the structure of the pressure cap, proportional valve seat, and solenoid valve control module in this utility model; Figure 4 This is an exploded view of the components of this utility model after disassembly.

[0013] In the diagram: 1. Sub-seat cover; 11. Lower cavity; 12. Lower flow pipe; 2. Proportional valve sub-seat; 21. Series hole; 3. Proportional valve pilot port; 4. Proportional valve cover; 41. Assembly hole; 42. Upper flow pipe; 10. Solenoid valve control module; 101. Module housing; 105. Iron core; 1051. Spring; 1052. Plug; 106. Iron core outer tube; 107. Digital water curtain coil; 108. Gasket; 109. Nut. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a proportional solenoid valve, including: a sub-seat cover 1 and a proportional valve cover 4, the sub-seat cover 1 and the proportional valve cover 4 are fixedly assembled, the sub-seat cover 1 and the proportional valve cover 4 are clamped at the joint of the sub-seat cover 1 and the proportional valve cover 4, the sub-seat cover 1 has a built-in lower cavity 11 and a lower flow pipe 12, the lower cavity 11 and the lower flow pipe 12 are connected, the proportional valve cover 4 has an upper cavity and an upper flow pipe 42, the upper cavity and the upper flow pipe 42 are connected, and the proportional valve sub-seat 2 separates the upper cavity and the lower cavity 11; The proportional valve seat 2 has six series holes 21 arranged in an annular array. The series holes 21 are used to install the proportional valve pilot port 3. The proportional valve pilot port 3 connects the upper chamber and the lower chamber 11. After the fluid enters the upper chamber in the proportional valve cover 4, it enters the lower chamber 11 through the proportional valve pilot port 3 and is then discharged through the lower flow pipe 12.

[0016] The upper surface of the proportional valve cover 4 has six assembly holes 41, and each assembly hole 41 is equipped with a solenoid valve control module 10. The solenoid valve control module 10 controls the opening and closing of the proportional valve pilot valve port 3. By combining several solenoid valve control modules 10 to control the opening and closing of the proportional valve pilot valve port 3, the precise control of fluid flow can be achieved.

[0017] Specifically, the solenoid valve control module 10 includes a module housing 101, with an iron core outer tube 106 running through it. A gasket 108 and a nut 109 are provided at the upper end of the iron core outer tube 106, wherein the nut 109 is threadedly connected to the iron core outer tube 106, and the lower end of the iron core outer tube 106 is installed on the assembly hole 41. The module housing 101 is locked on the proportional valve cover 4 by the threaded engagement of the nut 109 and the iron core outer tube 106. An iron core 105 is movably installed inside the outer tube 106. A spring 1051 is sleeved on the outside of the iron core 105. A plug 1052 is installed at the lower end of the iron core 105. The plug 1052 descends to block the pilot valve port 3 of the proportional valve. The solenoid valve control module 10 also includes a digital water curtain coil 107. When the digital water curtain coil 107 is energized, it controls the outer tube 106 of the iron core to generate magnetic force to attract the iron core 105 and lift it up. The spring 1051 is compressed, which drives the plug 1052 to disengage from the proportional valve pilot port 3, thereby opening the proportional valve pilot port 3 and allowing fluid to pass through. When the outer tube 106 of the iron core is de-energized, the spring 1051 is released, pushing the iron core 105 out and lowering it. The plug 1052 then descends to seal the proportional valve pilot port 3, thereby closing the proportional valve pilot port 3.

[0018] Working principle: Fluid is introduced into the upward flow pipe 42 and enters the upper cavity of the proportional valve cover 4. When fluid needs to flow out, the digital water curtain coil 107 is energized to control the outer tube 106 of the iron core to generate magnetic force to attract the iron core 105 to rise. The plug 1052 is separated from the proportional valve guide port 3, and the fluid flows smoothly through the proportional valve guide port 3 into the lower cavity 11, and then out through the lower flow pipe 12. During this process, multiple solenoid valve control modules 10 control the opening of multiple proportional valve pilot ports 3 to achieve proportional fluid flow. Mechanical flow control is used to make fluid flow control more precise.

[0019] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A proportional solenoid valve, comprising: The proportional valve cover (4) and the proportional valve cover (1) are fixedly assembled. The feature is that the proportional valve cover (2) is clamped at the joint of the proportional valve cover (4) and the proportional valve cover (1). The proportional valve cover (2) divides the space inside the proportional valve cover (1) and the proportional valve cover (4) into two parts, upper and lower. The proportional valve seat (2) has a ring-shaped equidistant array of several series holes (21), and the series holes (21) are used to install the proportional valve pilot port (3). The upper surface of the proportional valve cover (4) is provided with a number of assembly holes (41) corresponding to the series holes (21). Each assembly hole (41) is equipped with a solenoid valve control module (10). The solenoid valve control module (10) controls the opening and closing of the proportional valve pilot valve port (3).

2. A proportional solenoid valve according to claim 1, characterized in that, The sub-seat cover (1) has a built-in lower cavity (11) and a lower flow pipe (12), and the lower cavity (11) and the lower flow pipe (12) are connected.

3. A proportional solenoid valve according to claim 1, characterized in that, The proportional valve cover (4) is provided with an upper cavity and an upper flow pipe (42), and the upper cavity and the upper flow pipe (42) are connected.

4. A proportional solenoid valve according to any one of claims 1-3, characterized in that, The proportional valve pilot port (3) connects the upper chamber and the lower chamber (11).

5. A proportional solenoid valve according to claim 1, characterized in that, The solenoid valve control module (10) includes a module housing (101), with an iron core outer tube (106) running through it. A gasket (108) and a nut (109) are provided at the upper end of the iron core outer tube (106), wherein the nut (109) is threadedly connected to the iron core outer tube (106), and the lower end of the iron core outer tube (106) is installed on the assembly hole (41). The nut (109) and the iron core outer tube (106) are threadedly engaged to lock the module housing (101) on the proportional valve cover (4).

6. A proportional solenoid valve according to claim 5, characterized in that, The iron core (105) is movably installed inside the iron core outer tube (106). A spring (1051) is sleeved on the outside of the iron core (105). A plug (1052) is installed at the lower end of the iron core (105). The plug (1052) descends to block the proportional valve pilot valve port (3). The solenoid valve control module (10) also includes a digital water curtain coil (107). When the digital water curtain coil (107) is energized, it controls the iron core outer tube (106) to generate magnetic force to attract the iron core (105).

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