Irrigation switch valve controlled by air bag

Abstract

The utility model relates to the technical field of valves, in particular to an irrigation switch valve controlled by an air bag. The utility model provides an irrigation switch valve controlled by an air bag, which comprises a valve body, the middle part of the valve body is fixedly connected with an air delivery pipe, the top end of the air delivery pipe is connected with a micro air pump, the bottom end of the air delivery pipe is connected with an air bag valve ball, the upper end of the air delivery pipe is communicated with an air outlet pipe, and the air outlet pipe is connected with an electromagnetic valve. An umbrella-shaped plate is connected to the lower end of the air conveying pipe, a pressure sensor is connected to the bottom of the umbrella-shaped plate, a controller is fixedly connected to the top of the valve body, and the pressure sensor, the micro air pump and the electromagnetic valve are all electrically connected with the controller. The miniature air pump and the electromagnetic valve are driven through the controller, automatic control over inflation and deflation of the air bag valve ball can be achieved, the operation process of opening and closing of the valve is simplified, meanwhile, the pressure change of the air bag valve ball is monitored in real time through the pressure sensor and fed back to the controller, and it is guaranteed that the inflation and deflation process of the air bag valve ball is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an irrigation switch valve controlled by an air bag. Background Art

[0002] In irrigation systems, on-off valves play a vital role in controlling the flow of water. Currently, airbag-controlled valve technology is gradually gaining attention. This type of valve opens and closes by inflating and deflating air, and has the advantages of easy operation, fast response, and precise control.

[0003] Patent publication number CN215673701U discloses a soft gas valve. This patent is equipped with a sealing mechanism. Air is rushed into the interior of the airbag valve ball through the air intake pipe via an air compressor. When the internal pressure of the airbag valve ball reaches a certain pressure, the airbag valve ball expands. The expanded airbag valve ball squeezes the inner cavity of the valve body to prevent water from flowing out. The sealing valve ball can seal the bottom end of the air intake pipe after inflation is completed.

[0004] However, this patent seals the bottom end of the intake pipe through a sealing valve ball after inflation is completed. When the airbag valve ball needs to be deflated to close the valve, the sealing valve ball needs to be detached from the outside, and the operation process is relatively complicated. In addition, the airbag valve ball in this patent is located inside the valve body, and it is difficult to observe and monitor the inflation expansion of the airbag valve ball, which will lead to insufficient sealing performance of the valve body when the inflation is insufficient. Summary of the Invention

[0005] In order to overcome the shortcomings of existing airbag-controlled valves that require additional operations to achieve deflation, the operation process is relatively complicated, and it is difficult to monitor the inflation of the airbag valve ball, which affects the sealing performance of the valve body, the utility model provides an airbag-controlled irrigation switch valve.

[0006] Technical solution: An airbag-controlled irrigation switch valve, including a valve body, an air supply pipe, a micro air pump, an airbag valve ball, an air outlet pipe, a solenoid valve, a controller, an umbrella plate and a pressure sensor. The air supply pipe is fixedly connected to the middle part of the valve body, the top of the air supply pipe is connected to the micro air pump, the bottom end of the air supply pipe is connected to the airbag valve ball, the upper end of the air supply pipe is connected to the air outlet pipe, the air outlet pipe is connected to the solenoid valve, the top of the valve body is fixedly connected to the controller, the lower end of the air supply pipe is connected to the umbrella plate, the umbrella plate is slidably connected to the inside of the valve body, the bottom of the umbrella plate is connected to the pressure sensor, and the pressure sensor, micro air pump and solenoid valve are all electrically connected to the controller.

[0007] In addition, it is particularly preferred that an elastic member is further included, the lower end of the gas pipe is sleeved with the elastic member, and the two ends of the elastic member are respectively connected to the top of the umbrella plate and the top of the valve body.

[0008] Furthermore, it is particularly preferred that the lower end of the gas delivery pipe is a telescopic hose.

[0009] Furthermore, it is particularly preferred that the diameter of the airbag valve ball after inflation is equal to the inner diameter of the pipeline to be switched.

[0010] In addition, it is particularly preferred that a protective cylinder and a cylinder door are further included, the protective cylinder is fixedly connected to the top of the valve body, and the cylinder door is rotatably connected to the protective cylinder.

[0011] In addition, it is particularly preferred that an air outlet is opened on the upper portion of the cylinder door.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model drives the micro air pump and solenoid valve through the controller to realize automatic control of the inflation and deflation of the airbag valve ball, simplifying the operation process of the valve switch. At the same time, the pressure sensor monitors the pressure changes of the airbag valve ball in real time and feeds back to the controller to ensure that the inflation and deflation process of the airbag valve ball is reliable, thereby ensuring the working performance of the irrigation switch valve.

[0014] 2. The utility model provides an elastic member so that the umbrella-shaped plate and the airbag valve ball connected thereto can automatically reset when the irrigation switch valve needs to be opened, ensuring that the airbag valve ball can retract into the valve body and ensure stable flow of water in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a cross-sectional view of the present utility model.

[0017] Figure 3 This is a schematic diagram of the installation of the valve body, pipeline and branch pipe of the utility model.

[0018] Figure 4 This is a cross-sectional view of the airbag valve ball of the utility model when it is inflated.

[0019] Among them, the above-mentioned drawings include the following figure marks: 1-valve body, 2-air supply pipe, 3-micro air pump, 4-airbag valve ball, 5-air outlet pipe, 6-solenoid valve, 7-controller, 8-umbrella plate, 9-pressure sensor, 10-elastic part, 11-protective cylinder, 12-cylinder door, 13-air outlet, 14-pipeline, 15-branch pipe. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0021] Example: An airbag-controlled irrigation switch valve, such as Figures 1-4 As shown, it includes a valve body 1, an air supply pipe 2, a micro air pump 3, an airbag valve ball 4, an air outlet pipe 5, an electromagnetic valve 6, a controller 7, an umbrella plate 8 and a pressure sensor 9. The air supply pipe 2 is fixedly connected to the middle part of the valve body 1. The lower end of the air supply pipe 2 is a retractable hose. The top of the air supply pipe 2 is connected to the micro air pump 3, and the bottom end of the air supply pipe 2 is connected to the airbag valve ball 4. The diameter of the airbag valve ball 4 after inflation is equal to the inner diameter of the pipe 14 to be switched. The upper end of the air supply pipe 2 is connected to the air outlet pipe 5, and the air outlet pipe 5 is located above the top of the valve body 1. The air outlet pipe 5 is connected to the electromagnetic valve 6. The top of the valve body 1 is fixed with a controller 7. The lower end of the air supply pipe 2 is connected to the umbrella plate 8, which is slidably connected to the inside of the valve body 1. The bottom of the umbrella plate 8 is connected to the pressure sensor 9. The pressure sensor 9, the micro air pump 3 and the electromagnetic valve 6 are all electrically connected to the controller 7.

[0022] It should be noted that: when the irrigation switch valve needs to be closed, the micro air pump 3 is controlled by the controller 7 to work, so that it inflates the air bag valve ball 4 through the air supply pipe 2. After the air bag valve ball 4 expands, it blocks the pipe 14 and stops the water flow in the pipe 14. When the irrigation switch valve needs to be opened, the solenoid valve 6 is opened by the controller 7, so that the gas in the air bag valve ball 4 is discharged through the air outlet pipe 5, and the air bag valve ball 4 gradually shrinks until the air bag valve ball 4 completely enters the valve body 1, thereby allowing the water flow in the pipe 14 to pass.

[0023] like Figure 2 and Figure 4 As shown, an elastic member 10 is also included. The lower end of the gas pipe 2 is sleeved with the elastic member 10, and the two ends of the elastic member 10 are respectively connected to the top of the umbrella plate 8 and the top inside the valve body 1.

[0024] It should be noted that when the airbag valve ball 4 is inflated and expands downward inside the valve body 1, it will drive the umbrella plate 8 to move downward, causing the elastic member 10 to be stretched. When the airbag valve ball 4 is deflated and shrinks, the elastic member 10 will return to its original state under the action of its own elastic force, and cause the umbrella plate 8 to drive the airbag valve ball 4 to move upward and reset.

[0025] Working principle: When in use, the valve body 1 is threadedly connected to the branch pipe 15. In the initial state, the airbag valve ball 4 is not inflated and is inside the valve body 1, thereby allowing the water flow in the pipe 14 to be switched to pass through. At this time, the micro air pump 3 does not work, the solenoid valve 6 is closed, the pressure value monitored by the pressure sensor 9 is at a low level, and the elastic member 10 is in a normal state; when it is necessary to close the irrigation switch valve, the micro air pump 3 is controlled by the controller 7 to work, so that it inflates the airbag valve ball 4 through the air pipe 2. The airbag valve ball 4 will gradually expand downward inside the valve body 1 and drive the umbrella plate 8 to move downward, thereby extending the lower end of the air pipe 2 and the elastic member 10 being stretched until the airbag valve ball 4 completely blocks the pipe 14, thereby stopping the water flow in the pipe 14. During this process The pressure value monitored by the pressure sensor 9 gradually rises. When it reaches the preset threshold, the micro air pump 3 is controlled by the controller 7 to stop working; when the irrigation switch valve needs to be opened, the solenoid valve 6 is opened by the controller 7 to discharge the gas in the airbag valve ball 4 through the outlet pipe 5, and the airbag valve ball 4 will gradually shrink. During this process, the elastic member 10 gradually returns to its original state under the action of its own elastic force, and the umbrella plate 8 drives the airbag valve ball 4 to gradually move upward. The lower end of the air supply pipe 2 is gradually shortened and restored by the upward pressure of the umbrella plate 8 until the airbag valve ball 4 completely enters the interior of the valve body 1, thereby allowing the water in the pipeline 14 to pass. At the same time, the pressure value monitored by the pressure sensor 9 gradually decreases. When it drops below the preset threshold, the solenoid valve 6 is closed by the controller 7.

[0026] like Figure 1 and Figure 2 As shown, it also includes a protective cylinder 11 and a cylinder door 12. The protective cylinder 11 is fixedly connected to the top of the valve body 1. The cylinder door 12 is rotatably connected to the protective cylinder 11. An air outlet 13 is opened on the upper part of the cylinder door 12.

[0027] It should be noted that the protective cylinder 11 can effectively protect the external structure of the irrigation switch valve from the influence of the external environment. By rotating and opening the cylinder door 12, the external structure of the irrigation switch valve can be maintained. When the solenoid valve 6 is opened, the air outlet 13 on the cylinder door 12 allows the gas in the airbag valve ball 4 to be discharged, thereby ensuring the normal operation of the irrigation switch valve.

[0028] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An airbag-controlled irrigation switch valve, comprising a valve body (1), characterized in that: An air supply pipe (2) is fixedly connected to the middle of the valve body (1), the top of the air supply pipe (2) is connected to a micro air pump (3), the bottom of the air supply pipe (2) is connected to an air bag valve ball (4), the upper end of the air supply pipe (2) is connected to an air outlet pipe (5), the air outlet pipe (5) is connected to a solenoid valve (6), the top of the valve body (1) is fixedly connected to a controller (7), the lower end of the air supply pipe (2) is connected to an umbrella plate (8), the umbrella plate (8) is slidably connected to the inside of the valve body (1), the bottom of the umbrella plate (8) is connected to a pressure sensor (9), and the pressure sensor (9), the micro air pump (3) and the solenoid valve (6) are all electrically connected to the controller (7).

2. The airbag-controlled irrigation switch valve according to claim 1, characterized in that: It also includes an elastic member (10), the lower end of the gas delivery pipe (2) is sleeved with the elastic member (10), and the two ends of the elastic member (10) are respectively connected to the top of the umbrella-shaped plate (8) and the top of the valve body (1).

3. The airbag-controlled irrigation switch valve according to claim 2, characterized in that: The lower end of the air delivery pipe (2) is a retractable hose.

4. The airbag-controlled irrigation switch valve according to claim 3, characterized in that: The diameter of the airbag valve ball (4) after being inflated is equal to the inner diameter of the pipeline (14) to be switched.

5. The airbag-controlled irrigation switch valve according to claim 4, characterized in that: It also comprises a protective cylinder (11) and a cylinder door (12); the top of the valve body (1) is fixedly connected to the protective cylinder (11); and the cylinder door (12) is rotatably connected to the protective cylinder (11).

6. The airbag-controlled irrigation switch valve according to claim 5, characterized in that: An air outlet hole (13) is formed at the upper portion of the cylinder door (12).

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