Water pressure testing structure and valve device

Abstract

This invention provides a water pressure detection structure, including a pressure sensor and a detection channel. The pressure sensor has a detection port, one end of the detection channel is connected to the detection port, and the other end of the detection channel is connected to a water flow channel in a water-passing structure. Air is retained within the detection channel. When water flows through the water flow channel, the water enters the detection channel and compresses the air within it. The pressure sensor detects the pressure of the compressed air and the pressure of the water within the water flow channel. When no water flows through the water flow channel, it is connected to the atmosphere, and the air pressure within the detection channel is atmospheric pressure; at this time, the pressure detected by the pressure sensor is zero. By converting the water pressure within the water flow channel into the air pressure within the detection channel for detection, and because pressure sensors are low-cost and low-power, using a pressure sensor to replace a water pressure sensor module saves user costs and reduces power consumption.

Description

Technical Field

[0001] This utility model relates to the field of water pressure detection technology, and more specifically, to a water pressure detection structure and valve device. Background Technology

[0002] In farmland irrigation, the water pressure at the pipe outlet directly affects the irrigation speed and time, and also affects whether the irrigation of the entire farmland is uniform. Therefore, intelligent irrigation systems used in agriculture need to be equipped with water pressure detection devices at each outlet.

[0003] Currently, most water pressure detection devices utilize external water pressure sensor modules. The water pressure detection component of these modules is installed at the water valve outlet of the irrigation system and connected to a controller within the system. The water pressure sensor module then feeds back the water pressure readings from the outlet to the controller. Therefore, a water pressure sensor module needs to be installed at each outlet of the irrigation system to detect the water pressure. Since these modules are relatively expensive, the user's operating costs are high. Furthermore, the high power consumption of these modules leads to high electricity costs. Utility Model Content

[0004] This invention provides a water pressure detection structure and valve device to solve the problems of high cost and power consumption in existing water pressure detection technologies.

[0005] To address the aforementioned problems, according to one aspect of this utility model, a water pressure detection structure is provided, comprising a pressure sensor and a detection channel. The pressure sensor has a detection port, one end of the detection channel is connected to the detection port, and the other end of the detection channel is connected to a water flow channel of a water-passing structure. Air is retained within the detection channel. When water flows through the water flow channel, the water enters the detection channel and compresses the air within it. The pressure sensor detects the pressure of the compressed air and the pressure of the water within the water flow channel.

[0006] Furthermore, the water pressure detection structure also includes a housing structure and a control board. The air pressure sensor and the control board are both installed inside the housing structure and are electrically connected.

[0007] Furthermore, the detection channel is formed within the shell structure.

[0008] Furthermore, the water pressure detection structure also includes a detection tube, the channel inside the detection tube forming at least part of the detection channel; one end of the detection tube is directly or indirectly connected to the air pressure sensor, and the other end of the detection tube is directly or indirectly connected to the water flow structure.

[0009] Furthermore, the water pressure detection structure also includes a first connector, which is fixed to the housing structure. One end of the first connector is sealed to the air pressure sensor, and the other end of the first connector is sealed to one end of the detection tube. The detection tube is connected to the detection port through the first connector.

[0010] Furthermore, one end of the first connector is mated with one end of the pressure sensor, the housing structure has a sealed cavity, the mating position of the pressure sensor and the first connector is located inside the sealed cavity, and the sealed cavity is filled with sealant.

[0011] Furthermore, the shell structure is an injection-molded structure, the first connector is a metal structure, a part of the first connector is fixed inside the shell structure by injection molding, the other end of the first connector protrudes outside the shell structure, the other end of the first connector is inserted into one end of the detection tube, and the outer wall of the other end of the first connector has anti-detachment ribs.

[0012] In another aspect, this utility model provides a valve device, which includes a water valve and the aforementioned water pressure detection structure, wherein the other end of the detection channel of the water pressure detection structure is connected to the water flow channel inside the water valve.

[0013] Furthermore, the water flow channel has an outlet, and a second connector is provided on the side wall of the outlet, with the other end of the detection channel connected to the second connector.

[0014] Furthermore, the water flow channel has multiple outlets, and there are multiple air pressure sensors and detection channels. The multiple air pressure sensors and multiple detection channels are set up one-to-one, and each detection channel is connected to a water outlet to detect the water pressure of each outlet.

[0015] Furthermore, the water pressure detection structure also includes a housing structure, a control board, and a drive unit. The air pressure sensor, control board, and drive unit are all installed inside the housing structure. The air pressure sensor is installed on the control board. The drive unit and the control board are electrically connected. The housing structure is connected to the outer shell of the water valve. The drive unit drives the valve core of the water valve to move.

[0016] In this design, one end of the detection channel is connected to the detection port of a pressure sensor, and the other end is connected to the water flow channel of a water-passing structure. Air is contained within the detection channel. When the water flow channel is not flowing, it is open to the atmosphere, and the air pressure inside the detection channel is atmospheric pressure; therefore, the pressure detected by the pressure sensor is zero. When water flows through the channel, the water enters the detection channel, compressing the air inside. The pressure sensor detects the compressed air pressure, and by detecting the air pressure inside the detection channel, the water pressure in the water flow channel can be determined. By converting the water pressure in the water flow channel into the air pressure in the detection channel, and using a pressure sensor instead of a water pressure sensor module due to its low cost and low power consumption, user costs are saved, and power consumption is reduced. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A cross-sectional view of the water pressure detection structure provided in an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of the valve device provided in an embodiment of this utility model is shown;

[0020] Figure 3 A schematic diagram of the structure of the water valve in the valve device provided in an embodiment of this utility model is shown;

[0021] Figure 4 It shows Figure 1 Schematic diagram of the internal structure of the shell structure of the water pressure testing mechanism;

[0022] Figure 5 It shows Figure 1 A schematic diagram of the external structure of the shell of the water pressure testing mechanism.

[0023] The above figures include the following reference numerals:

[0024] 10. Pressure sensor; 11. Detection port; 20. Water valve; 21. Water outlet; 22. Second connector; 30. Housing structure; 31. Sealing cavity; 40. Control board; 50. Detection tube; 60. First connector; 61. Anti-detachment reinforcement. Detailed Implementation

[0025] The technical solutions in at least one embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one embodiment is merely illustrative and is not intended to limit this application or its applications. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application.

[0026] like Figure 1As shown, an embodiment of this utility model provides a water pressure detection structure, including a pressure sensor 10 and a detection channel. The pressure sensor 10 has a detection port 11, one end of the detection channel is connected to the detection port 11, and the other end of the detection channel is connected to the water flow channel of the water-passing structure. Air is stored in the detection channel. When water flows through the water flow channel, the water in the water flow channel enters the detection channel and compresses the air in the detection channel. The pressure sensor 10 detects the pressure of the compressed air and the pressure of the water in the water flow channel.

[0027] In this scheme, one end of the detection channel is connected to the detection port 11 of the air pressure sensor 10, and the other end is connected to the water flow channel of the water-passing structure. Air is retained in the detection channel. When the water flow channel is not flowing, it is connected to the atmosphere, and the air pressure in the detection channel is atmospheric pressure. At this time, the pressure detected by the air pressure sensor 10 is zero. When water flows through the water flow channel, the water enters the detection channel and compresses the air in the detection channel. The air pressure sensor 10 detects the compressed air pressure and thus the air pressure inside the detection channel, thereby determining the water pressure in the water flow channel. By converting the water pressure in the water flow channel into the air pressure in the detection channel for detection, and because the air pressure sensor 10 is low in cost and low in power consumption, using the air pressure sensor 10 to replace the water pressure sensor module saves user costs and reduces power consumption.

[0028] In some embodiments, the water pressure detection structure further includes a housing structure 30 and a control board 40. Both the air pressure sensor 10 and the control board 40 are installed within the housing structure 30 and are electrically connected. This integrated design, incorporating the air pressure sensor 10 and the control board 40 within the housing structure 30, simplifies the equipment structure and facilitates equipment testing and maintenance. Furthermore, the electrical connection between the air pressure sensor 10 and the control board 40 facilitates power supply and control of the air pressure sensor 10, improving the automation level of the device.

[0029] In some embodiments not shown, the detection channel is formed within the housing structure 30. Utilizing the space within the housing structure 30 prevents the detection channel from being completely exposed to the outside environment and thus avoiding damage. This design reduces maintenance costs, minimizes errors caused by external environmental factors, and improves the accuracy and reliability of water pressure testing. The detection channel within the housing structure 30 can be formed by injection molding or machining.

[0030] like Figure 2As shown, in some embodiments, the water pressure detection structure further includes a detection tube 50, the channel within the detection tube 50 forming at least a portion of the detection channel; one end of the detection tube 50 is directly or indirectly connected to the air pressure sensor 10, and the other end of the detection tube 50 is directly or indirectly connected to the water flow structure. The detection tube 50 is a flexible hose, easy to store and disassemble, with strong flexibility, ensuring the accuracy and stability of water pressure detection even in complex environments.

[0031] By setting up a detection tube 50 to connect the air pressure sensor 10 to the water passage structure, when water flows through the water passage structure, some water flows into the detection tube 50, squeezing the gas in the tube and converting the water pressure in the water passage structure into air pressure, which is then fed back to the air pressure sensor 10, thereby obtaining the water pressure status in the water passage structure. When the water passage structure is not flowing, the internal channel of the water passage structure is connected to the atmosphere, and the air pressure in the detection tube 50 is atmospheric pressure. At this time, the pressure detected by the air pressure sensor 10 is zero, that is, the water pressure in the water passage structure is zero.

[0032] In this embodiment, the water pressure detection structure further includes a first connector 60, which is fixed to the housing structure 30. One end of the first connector 60 is sealed to the air pressure sensor 10, and the other end of the first connector 60 is sealed to one end of the detection tube 50. The detection tube 50 is connected to the detection port 11 through the first connector 60. By setting the first connector 60, the connection between the air pressure sensor 10 and the detection tube 50 is realized, which facilitates assembly.

[0033] In this embodiment, one end of the first connector 60 is connected to one end of the pressure sensor 10. The housing structure 30 has a sealed cavity 31, and the connection point between the pressure sensor 10 and the first connector 60 is located within the sealed cavity 31. Sealant is injected into the sealed cavity 31. By injecting sealant into the sealed cavity 31, the detection port 11 of the pressure sensor 10 is sealed to the first connector 60, ensuring that external gas entering the pressure sensor 10 only through the detection port 11, preventing it from entering other equipment within the housing structure 30 and causing pressure detection failure or equipment malfunction. Furthermore, it prevents interference from the external environment on water pressure detection, improving the sealing and anti-interference capabilities of the water pressure detection structure and ensuring the accuracy of water pressure detection.

[0034] like Figure 4 and Figure 5As shown, the shell structure 30 is an injection-molded structure, and the first connector 60 is a metal structure. A portion of the first connector 60 is fixed inside the shell structure 30 by injection molding, while the other end of the first connector 60 protrudes outside the shell structure 30. The other end of the first connector 60 is inserted into one end of the detection tube 50, and the outer wall of the other end of the first connector 60 has an anti-detachment rib 61. The injection-molded first connector 60 ensures the strength of the structure and the sealing of the connection. The anti-detachment rib 61 prevents the detection tube 50 from loosening. The injection molding and anti-detachment rib design ensure the continuity and accuracy of water pressure testing, improve the overall structural strength of the equipment and the reliability of the connection parts, reduce maintenance frequency and costs, and improve the stability and durability of the equipment.

[0035] like Figure 2 As shown, this utility model also provides a valve device, which includes a water valve 20 and the aforementioned water pressure detection structure. The other end of the detection channel of the water pressure detection structure is connected to the water flow channel inside the water valve 20. By integrating the water pressure detection structure into the valve device, the water pressure in the water flow channel is converted into the air pressure in the detection channel for detection. Since air pressure sensors are low in cost and low in power consumption, using an air pressure sensor to replace the water pressure sensor module saves user costs and reduces power consumption.

[0036] In this embodiment, the water flow channel has an outlet 21, and a second connector 22 is provided on the side wall of the outlet 21. The other end of the detection channel is connected to the second connector 22. The detection channel is connected to the outlet 21 of the water flow channel through the second connector 22 to ensure that the water pressure at the outlet 21 can be accurately reflected in the detection channel.

[0037] Furthermore, the second connector 22 is provided with an external thread, which is connected to the side wall thread of the outlet 21 through the external thread. In addition, a sealing ring is provided at the corresponding position on the side wall of the outlet 21 to achieve a sealed connection with the second connector 22, prevent leakage, and ensure detection accuracy.

[0038] like Figure 3 As shown, the water flow channel has multiple outlets 21, multiple air pressure sensors 10, and multiple detection channels. Each air pressure sensor and detection channel is configured in a one-to-one correspondence, with each detection channel connected to one outlet 21 to detect the water pressure at each outlet 21. This one-to-one configuration of multiple air pressure sensors and detection channels allows for simultaneous detection of water pressure at multiple outlets 21, significantly improving the working efficiency of the water pressure detection structure.

[0039] In this embodiment, the water pressure detection structure also includes a housing structure 30, a control board 40, and a drive unit. The air pressure sensor 10, control board 40, and drive unit are all installed within the housing structure 30. The air pressure sensor 10 is installed on the control board 40, and the drive unit is electrically connected to the control board 40. The housing structure 30 is connected to the outer shell of the water valve 20, and the drive unit drives the valve core of the water valve 20 to move. Integrating the air pressure sensor 10, control board 40, and drive unit within the housing structure 30 forms an integrated intelligent control unit. The water pressure at the water flow channel is indirectly obtained through the air pressure sensor 10 and fed back to the control board 40. The control board 40 controls the drive unit to move the valve core of the water valve 20 according to the water pressure, achieving intelligent control of the water valve 20. This improves the intelligence and automation level of the valve device, enabling it to automatically adjust the water output according to the water pressure in the water flow channel, improving work efficiency, and reducing equipment power consumption and operating costs.

[0040] The above descriptions are merely some embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

Claims

1. A water pressure detection structure, characterized in that, It includes a pressure sensor (10) and a detection channel. The pressure sensor (10) has a detection port (11). One end of the detection channel is connected to the detection port (11), and the other end of the detection channel is connected to the water flow channel of the water-passing structure. Air is stored in the detection channel. When water flows through the water flow channel, the water in the water flow channel enters the detection channel and compresses the air in the detection channel. The pressure sensor (10) detects the pressure of the compressed air and the pressure of the water in the water flow channel.

2. The water pressure detection structure according to claim 1, characterized in that, The water pressure detection structure also includes a housing structure (30) and a control board (40). The air pressure sensor (10) and the control board (40) are both installed inside the housing structure (30), and the air pressure sensor (10) and the control board (40) are electrically connected.

3. The water pressure detection structure according to claim 2, characterized in that, The detection channel is formed within the housing structure (30).

4. The water pressure detection structure according to claim 2, characterized in that, The water pressure detection structure also includes a detection tube (50), the channel inside the detection tube (50) forms at least a part of the detection channel; one end of the detection tube (50) is directly or indirectly connected to the air pressure sensor (10), and the other end of the detection tube (50) is directly or indirectly connected to the water passage structure.

5. The water pressure detection structure according to claim 4, characterized in that, The water pressure detection structure also includes a first connector (60), which is fixed to the housing structure (30). One end of the first connector (60) is sealed to the air pressure sensor (10), and the other end of the first connector (60) is sealed to one end of the detection tube (50). The detection tube (50) is connected to the detection port (11) through the first connector (60).

6. The water pressure detection structure according to claim 5, characterized in that, One end of the first connector (60) is connected to one end of the pressure sensor (10). The housing structure (30) has a sealing cavity (31). The connection position of the pressure sensor (10) and the first connector (60) is located in the sealing cavity (31). The sealing cavity (31) is filled with sealant.

7. The water pressure detection structure according to claim 5, characterized in that, The shell structure (30) is an injection molded structure, the first connector (60) is a metal structure, a part of the first connector (60) is fixed inside the shell structure (30) by injection molding, the other end of the first connector (60) protrudes outside the shell structure (30), the other end of the first connector (60) is inserted into one end of the detection tube (50), and the outer wall of the other end of the first connector (60) has anti-detachment ribs (61).

8. A valve device, characterized in that, The valve device includes a water valve (20) and a water pressure detection structure according to any one of claims 1 to 7, wherein the other end of the detection channel of the water pressure detection structure is connected to the water flow channel inside the water valve (20).

9. The valve device according to claim 8, characterized in that, The water flow channel has an outlet (21), and a second connector (22) is provided on the side wall of the outlet (21). The other end of the detection channel is connected to the second connector (22).

10. The valve device according to claim 8, characterized in that, The water flow channel has multiple outlets (21), and there are multiple air pressure sensors (10) and multiple detection channels. The multiple air pressure sensors and multiple detection channels are set in a one-to-one correspondence. Each detection channel is connected to one of the outlets (21) to detect the water pressure of each outlet (21).

11. The valve device according to claim 8, characterized in that, The water pressure detection structure also includes a housing structure (30), a control board (40), and a drive unit. The air pressure sensor (10), the control board (40), and the drive unit are all installed inside the housing structure (30). The air pressure sensor (10) is installed on the control board (40). The drive unit and the control board (40) are electrically connected. The housing structure (30) is connected to the outer shell of the water valve (20). The drive unit drives the valve core of the water valve (20) to move.

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