Solenoid valve structure with speed selection function

Abstract

The utility model discloses an electromagnetic valve structure with speed selection, which comprises an electromagnetic valve body, the electromagnetic valve body comprises a first electromagnetic valve and a second electromagnetic valve, the electromagnetic valve body is fixedly connected with a main air supply port and a main exhaust port, the outer surface of the first electromagnetic valve is fixedly connected with a first coil, and the outer surface of the second electromagnetic valve is fixedly connected with a second coil. The outer surface of the first electromagnetic valve is fixedly connected with a first coil, the outer surface of the second electromagnetic valve is fixedly connected with a second coil, the first electromagnetic valve is provided with a first air outlet, the first electromagnetic valve is provided with a first exhaust port, the second electromagnetic valve is provided with a second air outlet, and the second electromagnetic valve is provided with a second exhaust port. The air flow can be rapidly or slowly controlled according to needs, different process requirements are met, the flexibility of a system is improved, only three process interfaces and two electrical interfaces can be seen in the appearance of the device, installation and replacement are more convenient, and the installation size is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and in particular to a solenoid valve structure with fast / slow selectability. Background Technology

[0002] In automated production engineering, solenoid valves are common accessories for control valves. Typically, a single-acting, on / off valve can be controlled by a single two-position, three-way solenoid valve. If only one two-position, three-way solenoid valve is used, the opening and closing stroke times are essentially fixed at a given intake velocity. In an ethoxylation unit, during the unloading sequence from the main reaction to the neutralization reaction, unloading is achieved through the on / off valve. If the valve opens too quickly, it can cause significant pipeline vibration. Prolonged vibration can lead to safety hazards such as loosening of flange bolts and damage to nearby pipelines and equipment. Slowing down the valve opening speed can mitigate these risks. When the valve needs to be opened quickly but the conditions cannot be met, such as the "coaxial solenoid valve" disclosed in China with the application number "CN202220591932.8", which sets the first valve body, the second valve body and the connecting pipe for connecting the two coaxially, and relies on the axial movement of the connecting pipe to realize the switching of the connection state between the first valve body and the second valve body, the structure of the solenoid valve can be simpler and has a smaller height and volume. However, it cannot realize the control selection of valve opening and closing speed, and cannot control the airflow quickly or slowly as needed, thus it cannot adapt to different process requirements and improve the flexibility of the system. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a solenoid valve structure with selectable speed. This device uses two points to control two solenoid valves to achieve the selection of valve opening and closing speed, and can control the airflow quickly or slowly as needed to adapt to different process requirements and improve the flexibility of the system. In the fast mode, the valve can be opened or closed quickly, which can speed up the action speed of pneumatic components and improve production efficiency, while in the slow mode, more precise control can be achieved and pipeline vibration can be reduced. The device can only be seen externally as having three process interfaces and two electrical interfaces, making installation and replacement more convenient and reducing the installation volume.

[0004] This utility model also provides a solenoid valve structure with speed selection as described above, comprising: a solenoid valve body, the solenoid valve body including a first solenoid valve and a second solenoid valve, a main air supply port fixedly connected to the solenoid valve body, a main exhaust port fixedly connected to the solenoid valve body, a first coil fixedly connected to the outer surface of the first solenoid valve, a second coil fixedly connected to the outer surface of the second solenoid valve, a first air outlet provided on the first solenoid valve, a first exhaust port provided on the first solenoid valve, and a second air outlet provided on the second solenoid valve. This device uses two points to control two solenoid valves to achieve selection of valve opening and closing speed, which can control the airflow quickly or slowly as needed, adapt to different process requirements, and improve the flexibility of the system. In fast mode, the valve can be quickly opened or closed, which can speed up the action speed of pneumatic components and improve production efficiency, while in slow mode, more precise control can be achieved and pipeline vibration can be reduced. This device only shows three process interfaces and two electrical interfaces, making installation and replacement more convenient and reducing the installation volume.

[0005] According to the present invention, a solenoid valve structure with speed selection is provided, wherein the first exhaust port is connected to the second exhaust port, and the second exhaust port is connected to the main exhaust port.

[0006] According to the present invention, a solenoid valve structure with speed selection is provided, wherein the first solenoid valve and the second solenoid valve are provided with air supply branch pipes, and the air supply branch pipes are fixedly connected to the main air supply port, which can effectively supply air to the two solenoid valves.

[0007] According to the present invention, a solenoid valve structure with speed selection is provided, wherein an air inlet valve is provided on the air supply branch pipe to adjust the air intake speed, and the first solenoid valve and the second solenoid valve are symmetrically installed in the solenoid valve body, which can improve the aesthetics and layout rationality.

[0008] According to the present invention, a solenoid valve structure with speed selection is provided, wherein the first air outlet is connected to a control valve cylinder, and the main air supply port is fixedly connected to an air source main pipe, which can provide a stable air source.

[0009] According to the present invention, a solenoid valve structure with speed selection is provided, wherein the first coil and the second coil are provided with a polyester insulation protective layer, which can effectively protect the coil structure.

[0010] Beneficial effects

[0011] Compared with existing technologies, this solenoid valve structure with fast / slow selectability uses two points to control two solenoid valves to select the valve opening and closing speed. It can control the airflow quickly or slowly as needed to adapt to different process requirements and improve the system's flexibility. In fast mode, the valve can be opened or closed quickly, which can speed up the action speed of pneumatic components and improve production efficiency, while in slow mode, more precise control can be achieved and pipeline vibration can be reduced.

[0012] Compared with existing technologies, this solenoid valve structure with fast / slow selectable speed has only three process interfaces and two electrical interfaces visible in the device's appearance, making installation and replacement more convenient and reducing the installation volume. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a schematic diagram of the solenoid valve structure with speed selection according to this utility model.

[0015] Legend:

[0016] 1. Solenoid valve body; 2. First solenoid valve; 3. Second solenoid valve; 4. Main air supply port; 5. Main exhaust port; 6. First coil; 7. Second coil; 8. First air outlet; 9. Second air outlet; 10. First exhaust port; 11. Second exhaust port; 12. Intake valve. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1This utility model discloses a solenoid valve structure with speed selection, comprising: a solenoid valve body 1, which is derived from two two-position three-way solenoid valves by redesigning the air circuit; the solenoid valve body 1 includes a first solenoid valve 2 and a second solenoid valve 3, which are symmetrically installed inside the solenoid valve body 1; a main air supply port 4 is fixedly connected to the solenoid valve body 1, and a main air supply pipe is fixedly connected to the main air supply port 4, serving as the air supply port for the solenoid valve body 1; air supply branch pipes are provided on the first solenoid valve 2 and the second solenoid valve 3, which are fixedly connected to the main air supply port 4, and an air inlet valve 12 is provided on the air supply branch pipe for supplying air to the solenoid valves; a main exhaust port 5 is fixedly connected to the solenoid valve body 1, serving as the exhaust port for the solenoid valve body 1; a first coil 6 is fixedly connected to the outer surface of the first solenoid valve 2, and a second coil 6 is fixedly connected to the outer surface of the second solenoid valve 3. Coil 7, first coil 6, and second coil 7 are all covered with a polyester insulation protective layer. The first solenoid valve 2 is provided with a first air outlet 8, which is connected to a control valve cylinder and serves as the air outlet of the solenoid valve body 1. The first solenoid valve 2 is provided with a first exhaust port 10, which is connected to a second air outlet 9. When the two first coils 6 and second coils 7 on the first solenoid valve 2 and the second solenoid valve 3 are simultaneously de-energized, the air in the cylinder first passes through the first exhaust port 10 on the first solenoid valve 2 and then enters the second exhaust port 9 on the second solenoid valve 3 for exhaust. The second solenoid valve 3 is provided with a second exhaust port 9 and a second exhaust port 11, which is connected to the main exhaust port 5. Two DO points (two different control signals) are used to control two two-position three-way solenoid valves to select the valve opening and closing speed.

[0019] Specifically, when the first coil 6 on the first solenoid valve 2 is energized and the second coil 7 on the second solenoid valve 3 is de-energized, the air source enters the first solenoid valve 2 from the main air supply port 4, and the air intake speed is adjusted by the air supply port valve 12, and enters the control valve cylinder from the first air outlet 8 on the first solenoid valve 2; when the two first coils 6 and second coils 7 on the first solenoid valve 2 and the second solenoid valve 3 are de-energized at the same time, the air in the cylinder first enters the second air outlet 9 on the second solenoid valve 3 through the first exhaust port 10 on the first solenoid valve 2 for exhaust.

[0020] Specifically, when the second coil 7 on the second solenoid valve 3 is energized and the coil 6 on the first solenoid valve 2 is de-energized, the air source enters the second solenoid valve 3 through the main air supply port 4, and the air intake speed is adjusted by the air supply port valve 12. It first enters the first exhaust port 10 on the first solenoid valve 2 from the second exhaust port 9 on the second solenoid valve 3, and finally enters the control valve cylinder from the first exhaust port 8 on the first solenoid valve 2. When the two first coils 6 and second coils 7 on the first solenoid valve 2 and the second solenoid valve 3 are de-energized at the same time, the air in the cylinder first enters the second exhaust port 9 on the second solenoid valve 3 through the first exhaust port 10 on the first solenoid valve 2.

[0021] Specifically, when the first coil 6 and the second coil 7 on the first solenoid valve 2 and the second solenoid valve 3 are energized simultaneously, gas will enter the cylinder from the second solenoid valve 2.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A solenoid valve structure with speed selection, characterized in that, include: The solenoid valve body (1) includes a first solenoid valve (2) and a second solenoid valve (3). A main air supply port (4) is fixedly connected to the solenoid valve body (1), and a main exhaust port (5) is fixedly connected to the solenoid valve body (1). A first coil (6) is fixedly connected to the outer surface of the first solenoid valve (2), and a second coil (7) is fixedly connected to the outer surface of the second solenoid valve (3). A first air outlet (8) is provided on the first solenoid valve (2), and a first exhaust port (10) is provided on the first solenoid valve (2). A second air outlet (9) is provided on the second solenoid valve (3), and a second exhaust port (11) is provided on the second solenoid valve (3).

2. The solenoid valve structure with speed selection according to claim 1, characterized in that, The first exhaust port (10) is connected to the second exhaust port (9), and the second exhaust port (11) is connected to the main exhaust port (5).

3. The solenoid valve structure with speed selection according to claim 1, characterized in that, The first solenoid valve (2) and the second solenoid valve (3) are provided with air supply branch pipes, which are fixedly connected to the main air supply port (4).

4. The solenoid valve structure with speed selection according to claim 3, characterized in that, An air inlet valve (12) is provided on the air supply branch pipe, and the first solenoid valve (2) and the second solenoid valve (3) are symmetrically installed inside the solenoid valve body (1).

5. The solenoid valve structure with speed selection according to claim 1, characterized in that, The first air outlet (8) is connected to a control valve cylinder, and the main air supply port (4) is externally connected to a main air supply pipe.

6. The solenoid valve structure with speed selection according to claim 1, characterized in that, The first coil (6) and the second coil (7) are provided with a polyester insulation protective layer.

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