Double head control solenoid valve

Abstract

The utility model provides a kind of double-end control solenoid valve, including control body, the both ends of control body are fixedly connected with valve body, the control body includes second shell, the both ends of second shell are sleevedly provided with end cap, the inside of second shell is provided with first coil and first magnet, the middle part of first magnet is fixedly connected with first connecting rod, first connecting rod is fixedly connected with limit disc, and the both side edges of limit disc are chamfered, the upper end of second shell one side is fixedly connected with third shell, the inside of third shell is provided with second coil and second magnet, the middle part of second magnet is fixedly connected with second connecting rod, the end of second connecting rod is provided with inclined plane, the upper end of second magnet is provided with spring, and spring is upwardly pressed against the inner wall of third shell. The utility model can reduce the use quantity of valve body in application scene, and has the function of no electricity keeping.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a double-headed control solenoid valve. Background Technique

[0002] A solenoid valve is an industrial device controlled by electricity magnetism. It is a basic automation component for controlling fluids and belongs to an actuator, not limited to hydraulic and pneumatic applications. It is used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. The solenoid valve can cooperate with different circuits to achieve the expected control, and both the control accuracy and flexibility can be guaranteed.

[0003] In some scenarios, generally, solenoid valves that need to be linked are required. Conventional solenoid valves only have one valve body, and each solenoid valve is linked through an electric control method. If a single solenoid valve has at least two valve bodies, the number of solenoid valves used in this scenario can be reduced. At the same time, without power holding, it is also a guarantee for safe and low-energy consumption production. Content of the Utility Model

[0004] To solve the above problems, the utility model discloses a double-headed control solenoid valve, which includes a control body, and valve bodies are fixedly connected to both ends of the control body. The control body is a component that controls the action of the valve body, and valve bodies are arranged at both ends, which can meet the usage requirements of multiple scenarios and reduce the layout quantity of controls.

[0005] The control body includes a second housing, end caps are sleeved on both ends of the second housing, a first coil and a first magnet are arranged inside the second housing, a first connecting rod penetrates and is fixedly connected to the middle of the first magnet, a limiting disk is fixedly connected to the first connecting rod, and chamfers are provided on both side edges of the limiting disk. When the first coil is powered on, the first magnet will slide axially.

[0006] A third housing is fixedly connected to one side of the upper end of the second housing, a second coil and a second magnet are arranged inside the third housing, a second connecting rod is fixedly connected to the middle of the second magnet, a slope is arranged at the end of the second connecting rod, a spring is arranged above the second magnet, and the spring abuts against the inner wall of the third housing upwards. Under the action of the spring, the second magnet maintains a downward movement. When the second coil is powered on, it can drive the magnet to move upwards. The slope arranged at the lower end of the second connecting rod contacts the chamfer of the edge of the limiting disk, restricting the axial sliding of the first magnet. And the way of slope contact, and under the restraint of the spring, enables the first magnet to have an axial component force, which can improve the reliability of the valve body being normally open or normally closed.

[0007] Preferably, the valve body includes a first housing, a valve chamber is disposed in the middle of the first housing, a valve core is disposed inside the valve chamber, and both ends of the valve core are conical surfaces. The valve chamber on one side of the valve core has a conical surface, and a sleeve is disposed on the other side of the valve core, with a conical surface at the end of the sleeve near the valve core. That is, the valve core is in contact with the inner wall of the valve chamber to achieve sealing on the left side, and the valve core is in contact with the sleeve to achieve sealing on the right side.

[0008] Preferably, one end of the sleeve is threadedly fixed to the end cap, and the first connecting rod passes through the middle of the sleeve and is threadedly connected to the valve core at its end. The valve core is driven to move left and right via the first connecting rod.

[0009] Preferably, the lower part of the first housing has two output channels, which are connected to both sides of the valve chamber. One of the output channels passes through the sleeve. The upper part of the first housing has an input channel, which is connected to the valve chamber and located directly above the valve core. The valve core actuates, and the input channel is connected to one of the output channels.

[0010] Preferably, the bottom of the third housing is threaded with a cap, which presses upward against the second coil. The cap serves to limit and fix the second coil.

[0011] Preferably, the control unit is provided with a first power supply line and a second power supply line, and the first power supply line and the second power supply line have the same structure, both including an end cap. At least two spring pins are fixedly connected to one end of the end cap, and a cable is fixedly connected to the other end of the end cap. The first power supply line and the second power supply line are used to power the control unit, and the plug-in power supply is convenient.

[0012] Preferably, the upper part of the third housing is provided with a connector slot, and the end seat is fitted into the connector slot. A second fixing cap is sleeved on the outer side of the end seat, and the second fixing cap is threadedly connected to the connector slot. The spring pin and the electrode ring at one end of the second coil are in contact. That is, the first power supply line is used to power the second coil.

[0013] Preferably, the upper part of the second housing is provided with a connector slot, and the end seat is fitted into the connector slot. A first fixing cap is sleeved on the outer side of the end seat, and the first fixing cap is threadedly connected to the connector slot. The spring pin contacts the electrode ring provided at one end of the first coil. The second power supply line is used to power the first coil.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Both ends of the control body are equipped with valve bodies, and each valve body has one input channel and two output channels. Depending on the connection method, the two valve bodies can be kept connected at the same time, or one can be kept open while the other is kept closed, to meet the needs of different linkage forms.

[0016] 2. A limit plate and a second connecting rod are provided so that the solenoid valve is energized only when its state needs to be changed. This has the advantages of low energy consumption and improved lifespan of the first and second coils of the solenoid valve.

[0017] 3. The limiting plate and the second connecting rod are in contact via an inclined plane, and under the action of the spring, the first connection has an axial component force, thereby achieving stable valve core contact and enabling wear compensation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional schematic diagram of the control body of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the valve body of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the first power supply line of this utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the second power supply line of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the second magnet of this utility model.

[0024] List of reference numerals in the attached diagram:

[0025] 1. Valve body; 2. Control unit; 3. First power supply line; 4. Second power supply line;

[0026] 11. First housing; 12. Output channel; 13. Valve chamber; 14. Valve core; 15. Input channel; 16. Sleeve; 21. End cap; 22. Second housing; 23. Limiting plate; 24. First connecting rod; 25. First coil; 26. First magnet; 27. First fixing cap; 28. Second connecting rod; 29. ​​Third housing; 210. Sealing cap; 211. Second coil; 212. Second magnet; 213. Second fixing cap; 214. Spring; 215. Inclined surface; 31, 41. Spring pin; 32, 42. End seat; 33, 43. Cable. Detailed Implementation

[0027] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0028] like Figures 1 to 6 As shown in the diagram, note that the black part represents the seal.

[0029] A dual-head control solenoid valve includes a control body 2, which has a rectangular parallelepiped structure. Valve bodies 1 are fixedly connected to both ends of the control body 2, and valve bodies 1 are located on both sides. This allows a single control body 2 to control two valve bodies 1, reducing control complexity and the number of solenoid valves required. The control body 2 and valve bodies 1 are fixedly connected by bolts. Figure 1 As shown.

[0030] The control body 2 includes a second housing 22, with end caps 21 sleeved at both ends of the second housing 22. A sleeve-like structure is provided on one side of the end cap 21 and fits into a pre-set hole in the second housing 22. A first coil 25 and a first magnet 26 are provided inside the second housing 22. The sleeve-like structure on the end cap 21 is used to hold the first coil 25 and limit its position. A first connecting rod 24 is fixedly connected through the middle of the first magnet 26. A limiting plate 23 is fixedly connected to the first connecting rod 24, and both sides of the limiting plate 23 are chamfered. When the first coil 25 is energized and the first magnet 26 is activated, the components on the first magnet 26 move axially accordingly, moving left or right depending on the energization method.

[0031] A third housing 29 is fixedly connected to one side of the upper end of the second housing 22. The third housing 29 is fixedly connected to the second housing 22 by bolts. A second coil 211 and a second magnet 212 are provided inside the third housing 29. When the second coil 211 is energized, the second magnet 212 moves. A second connecting rod 28 is fixedly connected to the middle of the second magnet 212. The end of the second connecting rod 28 is provided with a slope 215. A spring 214 is provided at the upper end of the second magnet 212, and the spring 214 pushes upward against the inner wall of the third housing 29. In addition, the second coil 211 is energized only when the second magnet 212 moves upward. When there is no power, the second magnet 212 remains downward due to the action of the spring 214.

[0032] The lower end of the second connecting rod 28 is provided with a bevel 215, and the bevel 215 contacts the chamfered edge of the limiting plate 23 under the action of the spring 214. With the spring 214 holding it, the first connecting rod 24 is subjected to an axial component force, thereby ensuring the stability of the valve body 1 in the on / off state. In addition, after setting this structure, the solenoid valve only needs to be energized when changing the on / off state, which has the advantages of reducing energy consumption and increasing service life.

[0033] The valve body 1 includes a first housing 11, a valve chamber 13 is provided in the middle of the first housing 11, a valve core 14 is provided inside the valve chamber 13, and both ends of the valve core 14 are conical surfaces. The valve chamber 13 located on one side of the valve core 14 is provided with a conical surface. The valve chamber 13 has two sections of aperture, and the transition section adopts a conical surface structure. A sleeve 16 is provided on the other side of the valve core 14, and the end of the sleeve 16 near the valve core 14 is provided with a conical surface. That is, the valve core 14 can move left and right and can fit with the conical surface and the sleeve 16 respectively to realize the change of on / off.

[0034] One end of the sleeve 16 is threadedly fixed to the end cap 21. A seal is provided between the end of the sleeve 16 and the end cap 21. The first connecting rod 24 passes through the middle of the sleeve 16 and its end is threadedly connected to the valve core 14. That is, the valve core 14 can be moved left and right by sliding axially through the first connecting rod 24.

[0035] The lower part of the first housing 11 is provided with two output channels 12, and the output channels 12 are connected to both sides of the valve chamber 13 respectively. One of the output channels 12 passes through the sleeve 16. The upper part of the first housing 11 is provided with an input channel 15, which is connected to the valve chamber 13 and is located directly above the valve core 14.

[0036] The inner wall and side wall of the sleeve 16 are fitted with sealing rings, and the side wall is provided with at least two sealing rings, with one of the output channels 12 located between the two sealing rings.

[0037] This solenoid valve is defined here as having two positions, left and right, so as to... Figure 3 The valve body 1 shown is described below. The two valve bodies 1 are mirror images of each other, so they will not be described further here. The output channels 12 are named Channel 1 and Channel 2. When operating in the left position, Channel 2 connects to the input channel 15; when operating in the right position, Channel 1 connects to the input channel 15. If only one of the two output channels 12 is used, the other can be blocked. Furthermore, if it is necessary for the input channel 15 and both output channels 12 to be connected, the solenoid valve has three positions. Based on the above, a neutral position is added. In this case, the valve core 14 is located between the conical surface and the sleeve 16. To maintain the position even when power is off, a groove is cut in the middle of the circumferential side wall of the limiting disc 23, and the lower end of the second connecting rod 28 fits into this groove to ensure the neutral position operation. For the accurate movement of the first magnet 26, a sensor and other structures for detecting the first magnet 26 are also needed.

[0038] The bottom of the third housing 29 is threaded with a cover 210, which presses against the second coil 211. In other words, the cover 210 supports and fixes the second coil 211. In addition, a sealing gasket is provided at the lower end of the cover 210.

[0039] The control unit 2 is equipped with a first power supply line 3 and a second power supply line 4, which provide power to the control unit 2. The first power supply line 3 and the second power supply line 4 have identical structures, both including end caps 32 and 42. At least two spring pins 31 and 41 are fixedly connected to one end of end caps 32 and 42, and cables 33 and 43 are fixedly connected to the other end of end caps 32 and 42. The connection method is simple and quick.

[0040] The upper part of the third housing 29 is provided with a connector slot, and the end seat 32 is fitted in the connector slot. A sealing gasket is provided between the connector slot and the end seat 31. A second fixing cap 213 is sleeved on the outside of the end seat 32, and the second fixing cap 213 is threadedly connected to the connector slot. The spring pin 31 and the electrode ring provided at one end of the second coil 211 are in contact. There are two electrode rings, and the electrode rings and the copper wire of the second coil 211 are electrically connected.

[0041] The upper part of the second housing 22 is provided with a connector slot, and the end seat 42 is fitted into the connector slot. Similarly, a sealing gasket is provided between the connector slot and the end seat 42. A first fixing cap 27 is sleeved on the outer side of the end seat 42, and the first fixing cap 27 is threadedly connected to the connector slot. The spring pin 41 contacts the electrode ring provided at one end of the first coil 25. The power supply method of the first coil 25 is the same as that of the second coil 211, and will not be described again here.

[0042] Sealing rings are provided at both ends of the end cap 21 to achieve a seal between the end cap 21 and the first housing 11 and the second housing 22. This solenoid valve has multiple seals in different positions, which helps to maintain the electrical performance of the solenoid valve during long-term use and to increase the upper limit of the working pressure.

[0043] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A dual-head control solenoid valve, characterized in that, Includes a control body (2), both ends of which are fixedly connected to valve bodies (1); The control body (2) includes a second housing (22), both ends of which are fitted with end caps (21). Inside the second housing (22) are a first coil (25) and a first magnet (26). A first connecting rod (24) is fixedly connected through the middle of the first magnet (26). A limiting plate (23) is fixedly connected to the first connecting rod (24), and both sides of the limiting plate (23) are chamfered. A third housing (29) is fixedly connected to one side of the upper end of the second housing (22). The third housing (29) is provided with a second coil (211) and a second magnet (212). A second connecting rod (28) is fixedly connected to the middle of the second magnet (212). An inclined surface (215) is provided at the end of the second connecting rod (28). A spring (214) is provided at the upper end of the second magnet (212), and the spring (214) pushes upward against the inner wall of the third housing (29).

2. The dual-head control solenoid valve according to claim 1, characterized in that: The valve body (1) includes a first housing (11), a valve chamber (13) is provided in the middle of the first housing (11), a valve core (14) is provided inside the valve chamber (13), and both ends of the valve core (14) are conical surfaces. The valve chamber (13) located on one side of the valve core (14) is provided with a conical surface, and a sleeve (16) is provided on the other side of the valve core (14), and the end of the sleeve (16) near the valve core (14) is provided with a conical surface.

3. A dual-head control solenoid valve according to claim 2, characterized in that: One end of the sleeve (16) is threadedly fixed to the end cap (21), and the first connecting rod (24) passes through the middle of the sleeve (16) and is threadedly connected to the valve core (14) at its end.

4. A dual-head control solenoid valve according to claim 2, characterized in that: The lower part of the first housing (11) is provided with two output channels (12), and the output channels (12) are connected to both sides of the valve chamber (13). One of the output channels (12) passes through the sleeve (16). The upper part of the first housing (11) is provided with an input channel (15), which is connected to the valve chamber (13) and located directly above the valve core (14).

5. A dual-head control solenoid valve according to claim 1, characterized in that: The bottom of the third housing (29) is threaded with a cover (210), which presses against the second coil (211) upward.

6. A dual-head control solenoid valve according to claim 1, characterized in that: The control body (2) is provided with a first power supply line (3) and a second power supply line (4), and the first power supply line (3) and the second power supply line (4) have the same structure, both including end seats (32, 42). At least two spring pins (31, 41) are fixedly connected to one end of the end seats (32, 42), and cables (33, 43) are fixedly connected to the other end of the end seats (32, 42).

7. A dual-head control solenoid valve according to claim 6, characterized in that: The upper part of the third housing (29) is provided with a connector slot, and the end seat (32) is fitted in the connector slot. The outer side of the end seat (32) is provided with a second fixing cap (213), and the second fixing cap (213) is threadedly connected to the connector slot. The spring pin (31) contacts the electrode ring provided at one end of the second coil (211).

8. A dual-head control solenoid valve according to claim 6, characterized in that: The upper part of the second housing (22) is provided with a connector slot, and the end seat (42) is fitted in the connector slot. The outer side of the end seat (42) is provided with a first fixing cap (27), and the first fixing cap (27) is threadedly connected to the connector slot. The spring pin (41) is in contact with the electrode ring provided at one end of the first coil (25).

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