Electromagnetic valve with double-control structure

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve with a double-control structure, which comprises a valve body, a coil assembly arranged in the middle of the valve body, an air inlet module arranged at the other end of the valve body and used for air inlet and air outlet, and a valve core arranged in the middle of the air inlet module and used for controlling the flow direction of air. An armature module corresponding to the coil assembly in position is arranged above the valve element, a cavity used for installing the armature module is arranged in the middle of the valve body, an air outlet reversing adjusting module extending to the outside of the valve body is arranged on one side of the cavity, and the air outlet reversing adjusting module can change the air flow direction under the power failure condition to serve as a safety structure of the electromagnetic valve. And accidents caused by gas flow direction change after sudden power failure are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, and particularly relates to a solenoid valve with a dual control structure. Background Technique

[0002] As an important component in the field of industrial automation control, solenoid valves are widely used in multiple fields such as hydraulic systems, pneumatic systems, and water treatment systems to precisely control the flow rate, direction, and pressure of fluids (including gases and liquids). With the continuous development of industrial technology, higher requirements are put forward for the control accuracy, response speed, and reliability of solenoid valves. Most traditional solenoid valves adopt a single electromagnetic control method, and there are limitations that they cannot be directly manually adjusted after power failure. Therefore, developing a solenoid valve with a dual control structure that can manually control and adjust the gas flow direction in the case of power failure has important practical significance and application value.

[0003] As an important part of a ventilator, a solenoid valve plays an important role in regulating gas flow rate, flow direction, etc. Traditional solenoid valves only rely on electromagnetic control and cannot be directly manually adjusted after power failure, which limits their application in complex working conditions. In recent years, some manufacturers have begun to try to combine electromagnetic control with manual control to develop solenoid valves with a dual control structure. However, most of these products have problems such as complex structure, high cost, and difficult maintenance, and the advantages of the dual control structure have not been fully utilized in actual applications.

[0004] Especially in the medical field, the number of patients with respiratory diseases has been increasing year by year, and the demand for ventilators has also been increasing day by day. A ventilator is an important ventilation device used in artificial assisted respiration treatment. With the continuous development of the medical cause, ventilators are also widely used in the treatment of various first aid, respiratory diseases, etc. As an important part of a ventilator, if a solenoid valve can only be electrically controlled and the gas flow direction cannot be adjusted after power failure, there will be a risk of causing medical hazards. Content of the Utility Model

[0005] In order to solve the above problems, the embodiment of the utility model provides a solenoid valve with a dual control structure that can be manually controlled after power failure.

[0006] The embodiment of the utility model specifically adopts the following technical scheme to achieve the above purpose: A solenoid valve with a dual control structure includes a valve body. A coil group is arranged in the middle of the valve body, and an air inlet module is arranged at the other end. A valve core for controlling the gas flow direction is arranged in the middle of the air inlet module. An armature module corresponding to the position of the coil group is arranged above the valve core. A chamber for installing the armature module is arranged in the middle of the valve body, and an air outlet commutation adjustment module extending to the outside of the valve body is arranged on one side of the chamber.

[0007] As a further improvement of the above technical solution:

[0008] The air outlet commutation adjustment module includes a rotating rod. One end of the rotating rod facing the armature module is provided with a pressing block. An adjusting screw is arranged between the pressing block and the armature module. The other end of the rotating rod extends to the outside of the valve body and is provided with a rotating handle.

[0009] The pressing block includes two symmetrically distributed arc-shaped blocks. One end of the arc-shaped block is provided with a guiding slope for cooperating with the adjusting screw.

[0010] The armature module includes an armature body. An object placing frame one is arranged outside the armature body. An object placing frame two is arranged outside the valve core. A linkage bracket is arranged between the object placing frame one and the object placing frame two.

[0011] The linkage bracket includes a vertically arranged sliding rod. Sliding grooves corresponding to the position of the sliding rod are arranged on the side walls of the object placing frame one and the object placing frame two.

[0012] A guiding rod is arranged in the middle of the sliding rod. A limiting groove corresponding to the position of the guiding rod is arranged at the lower part of the object placing frame one.

[0013] A coil bracket is arranged in the coil group. One end of the coil bracket facing the armature module is provided with a magnetic extension plate.

[0014] An air inlet is arranged in the middle of the air inlet module. A normally closed outlet and a normally open outlet are respectively arranged on both sides of the air inlet. An air passage communicating with the normally open outlet and the normally closed outlet is arranged at the air inlet. A moving chamber for placing the valve core is arranged in the middle of the air passage.

[0015] The beneficial effects of the embodiments of the present utility model are as follows: 1. The solenoid valve with a dual-control structure includes a valve body. A coil group is arranged in the middle of the valve body. The other end is provided with an air inlet module for air intake and exhaust. An air inlet is arranged in the middle of the air inlet module for controlling the air flow direction. An armature module corresponding to the position of the coil group is arranged above the valve core. A chamber for installing the armature module is arranged in the middle of the valve body. An air outlet commutation adjustment module extending to the outside of the valve body is arranged on one side of the chamber. The air flow direction can be changed under the power-off condition through the air outlet commutation adjustment module. As an insurance structure of the solenoid valve, it can avoid the change of the air flow direction and the occurrence of accidents after sudden power-off.

[0016] 2. The pressing block includes two symmetrically distributed arc-shaped blocks. One end of the arc-shaped block is provided with a guiding slope for cooperating with the adjusting screw. The design of the guiding slope can drive the displacement of the adjusting screw. When the adjusting screw is at the lowest end of the guiding slope, it does not contact the armature module. As the rotating rod rotates, when the adjusting screw moves to the highest point of the guiding slope, it pushes the armature module to move, thereby driving the valve core to move and changing the air flow direction. The structure is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a side view of the present utility model;

[0019] Figure 3 is Figure 2 a sectional view along A-A;

[0020] Figure 4 is a schematic diagram of the structure of the linkage bracket in the present utility model;

[0021] Figure 5 is a schematic diagram of the structure of the arc-shaped block in the present utility model.

[0022] In the figure: 1, valve body; 2, coil group; 3, intake module; 4, valve core; 5, armature module; 6, chamber; 7, rotating rod; 8, pressing block; 9, movable set screw; 10, rotating handle; 11, arc-shaped block; 12, guiding slope; 13, armature body; 14, storage frame one; 15, storage frame two; 16, linkage bracket; 17, sliding rod; 18, sliding groove; 19, guiding rod; 20, limiting groove; 21, coil bracket; 22, magnetic extension plate; 23, air inlet; 24, normally closed outlet; 25, normally open outlet; 26, air passage; 27, moving chamber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0024] As Figures 1-5 shown, the solenoid valve with a dual-control structure in this embodiment includes a valve body 1. A coil group 2 is provided in the middle of the valve body 1, and an intake module 3 is provided at the other end for intake and exhaust. A valve core 4 for controlling the gas flow direction is provided in the middle of the intake module 3. An armature module 5 corresponding to the position of the coil group 2 is provided above the valve core 4. A chamber 6 for installing the armature module 5 is provided in the middle of the valve body 1. An air outlet commutation adjustment module extending to the outside of the valve body 1 is provided on one side of the chamber 6. Through the air outlet commutation adjustment module, the gas flow direction can be changed under the power-off condition, serving as an insurance structure of the solenoid valve to avoid the gas flow direction changing and causing accidents after sudden power-off.

[0025] The air outlet commutation adjustment module includes a rotating rod 7. One end of the rotating rod 7 facing the armature module 5 is provided with a pressing block 8. There is a movable jackscrew 9 between the pressing block 8 and the armature module 5. The other end of the rotating rod 7 extends to the outside of the valve body 1 and is provided with a rotating handle 10. The rotation of the rotating handle 10 drives the rotation of the rotating rod 7. Then, the pressing block 8 pushes the jackscrew 9 forward to contact the armature module 5. The armature module 5 drives the sliding of the valve core 4 to change the gas flow direction.

[0026] The pressing block 8 includes two symmetrically distributed arc-shaped blocks 11. One end of the arc-shaped block 11 is provided with a guiding slope 12 for cooperating with the movable jackscrew 9. The design of the guiding slope 12 can drive the displacement of the jackscrew 9. When the jackscrew 9 is at the lowest end of the guiding slope 12, it does not contact the armature module. As the rotating rod 7 rotates, when the jackscrew 9 moves to the highest point of the guiding slope 12, it pushes the armature module to move, thereby driving the valve core to move and changing the gas flow direction.

[0027] The armature module 5 includes an armature body 13. An object placing frame one 14 is arranged outside the armature body 13. An object placing frame two 15 is arranged outside the valve core 4. A linkage bracket 16 is arranged between the object placing frame one 14 and the object placing frame two 15.

[0028] The linkage bracket 16 includes a vertically arranged sliding rod 17. Chutes 18 corresponding to the position of the sliding rod 17 are arranged on the side walls of the object placing frame one 14 and the object placing frame two 15. The width of the chute 18 is greater than the width of the sliding rod 17, providing guidance for the movement of the sliding rod 17 and facilitating the adjustment of the gas flow direction.

[0029] A guiding rod 19 is arranged in the middle of the sliding rod 17. A limiting groove 20 corresponding to the position of the guiding rod 19 is arranged at the lower part of the object placing frame one 14. The guiding rod 19 and the sliding rod 17 are perpendicularly distributed. The limiting groove 20 is used for guiding during sliding.

[0030] A coil support 21 is arranged inside the coil group 2. One end of the coil support 21 facing the armature module 5 is provided with a magnetic extension plate 22. The number of the magnetic extension plates 22 is two, and the heights of the two magnetic extension plates are different.

[0031] An air inlet 23 is arranged in the middle of the air inlet module 3. A normally closed outlet 24 and a normally open outlet 25 are respectively arranged on both sides of the air inlet 23. An air passage 26 communicating with the normally open outlet 25 and the normally closed outlet 24 is arranged at the air inlet 23. A moving chamber 27 for placing the valve core 4 is arranged in the middle of the air passage 26. Sealing plates corresponding to the position of the air passage 26 are arranged on both sides of the object placing frame two 15. The gas outlet direction is adjusted by the movement of the valve core 4.

[0032] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles or devices / equipment.

[0035] So far, the technical solutions of the present utility model have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A solenoid valve with a dual-control structure, comprising a valve body (1), a coil group (2) is arranged in the middle of the valve body (1), and an air inlet module (3) is arranged at the other end, characterized in that: A valve core (4) for controlling the gas flow direction is arranged in the middle of the intake module (3). An armature module (5) corresponding to the position of the coil group (2) is arranged above the valve core (4). A chamber (6) for installing the armature module (5) is arranged in the middle of the valve body (1). An air outlet commutation adjustment module extending to the outside of the valve body (1) is arranged on one side of the chamber (6).

2. The solenoid valve with a dual-control structure according to claim 1, wherein: The air outlet commutation adjustment module includes a rotating rod (7). A pressing block (8) is arranged at one end of the rotating rod (7) facing the armature module (5). An adjusting screw (9) is arranged between the pressing block (8) and the armature module (5). The other end of the rotating rod (7) extends to the outside of the valve body (1) and is provided with a rotating handle (10).

3. The solenoid valve with a dual-control structure according to claim 2, characterized in that: The pressing block (8) includes two symmetrically distributed arc-shaped blocks (11). A guiding slope (12) for cooperating with the adjusting screw (9) is arranged at one end of the arc-shaped block (11).

4. The solenoid valve with a dual-control structure according to claim 1, wherein: The armature module (5) includes an armature body (13). A storage frame one (14) is arranged outside the armature body (13). A storage frame two (15) is arranged outside the valve core (4). A linkage bracket (16) is arranged between the storage frame one (14) and the storage frame two (15).

5. The solenoid valve with a dual-control structure according to claim 4, characterized in that: The linkage bracket (16) includes a vertically arranged sliding rod (17). Sliding grooves (18) corresponding to the position of the sliding rod (17) are arranged on the side walls of the storage frame one (14) and the storage frame two (15).

6. The solenoid valve with a dual-control structure according to claim 5, characterized in that: A guiding rod (19) is arranged in the middle of the sliding rod (17). A limiting groove (20) corresponding to the position of the guiding rod (19) is arranged at the lower part of the storage frame one (14).

7. The solenoid valve with a dual-control structure according to claim 1, wherein: A coil bracket (21) is arranged in the coil group (2). A magnetic extension plate (22) is arranged at one end of the coil bracket (21) facing the armature module (5).

8. The solenoid valve with a dual-control structure according to claim 1, wherein: An air inlet (23) is arranged in the middle of the intake module (3). A normally closed outlet (24) and a normally open outlet (25) are respectively arranged on both sides of the air inlet (23). An air passage (26) communicating with the normally open outlet (25) and the normally closed outlet (24) is arranged at the air inlet (23). A moving chamber (27) for placing the valve core (4) is arranged in the middle of the air passage (26).

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