A liquid flow start transmission signal module

Abstract

The present invention relates to a liquid flow-activated signal transmission module, which belongs to the field of sensor technology and includes a monitoring sensor. A reset spring, a signal inducing device, a sealing diaphragm, and a diaphragm frame are installed in a cavity assembled by a housing and a back cover of the monitoring sensor. The diaphragm frame is fixed to the sealing diaphragm and moves with the sealing diaphragm. The signal inducing device is installed on the diaphragm frame and can generate displacement together. The reset spring is installed between the housing and the sealing diaphragm to reset the sealing diaphragm. A signal transmitting device is installed on the top of the housing. An elongated hole is provided at the center of the sealing diaphragm and the diaphragm frame, and the monitoring sensor is installed in a loading body of the main waterway. The loading body includes a first cavity and a second cavity, and the first cavity and the second cavity are connected by the elongated hole. The present invention has the advantages of being able to operate normally when the water pressure is very low, not affecting the flow of the main waterway, and avoiding the problems of unstable operation and affected signal transmission caused by contact with liquid.

Description

Technical Field

[0001] The invention belongs to the technical field of sensors, and in particular relates to a liquid flow start-up transmission signal module. Background Art

[0002] Currently, most signal sensors require contact with the liquid being measured. Over extended use, they can corrode and fail due to factors like scale. Furthermore, some types of sensors require high water pressure to operate, rendering them useless if low water pressure fails to trigger a signal. Alternatively, high pressure makes it difficult to reset the sensor, resulting in delayed and inaccurate signal transmission. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a liquid flow-activated transmission signal module that can operate normally when the water pressure is very low, does not affect the flow of the main water channel, and avoids the problems of unstable operation and affected signal transmission caused by contact with liquid.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a liquid flow-activated transmission signal module, including a monitoring sensor, the monitoring sensor including a shell and a back cover, a reset spring, a signal inducing device, a sealing diaphragm and a diaphragm frame are installed in the cavity formed by the assembly of the shell and the back cover, the diaphragm frame is fixed on the sealing diaphragm and displaces with the sealing diaphragm, the signal inducing device is installed on the diaphragm frame and can generate displacement together, the reset spring is installed between the shell and the sealing diaphragm, and is used to reset the sealing diaphragm and automatically close the main water channel, a signal transmitting device is installed on the top of the shell, and a slender hole passing through the sealing diaphragm and the diaphragm frame is provided at the center position.

[0005] Preferably, the monitoring sensor is installed in the loading body of the main waterway.

[0006] Preferably, the loading body includes a first cavity and a second cavity, the first cavity and the second cavity are divided by a sealing membrane, and the first cavity and the second cavity are connected through an elongated hole.

[0007] Preferably, a drainage channel is provided at the intersection of the shell and the back cover.

[0008] Preferably, the second cavity is connected to the main waterway drainage channel via a drain channel; the first cavity is connected to the main waterway waterway inlet channel.

[0009] Preferably, after the sealing diaphragm and the diaphragm frame are displaced a certain distance, a main water channel is formed between the sealing diaphragm and the rear cover.

[0010] Preferably, the monitoring sensor includes a sealing ring I and a sealing ring II, the sealing ring I is embedded in the outer side of the shell and is located between the shell and the inner wall of the loading body, and the sealing ring II is embedded in the outer side of the back cover and is located between the back cover and the inner wall of the loading body.

[0011] Preferably, a filtering device is provided below the elongated hole.

[0012] Preferably, the monitoring sensor is connected to the power supply component and the display module respectively, and the display module is connected to the power supply component and the data sensor respectively.

[0013] The present invention is installed in the main flow channel, and the monitoring sensor does not come into contact with the liquid in the flow channel, thus avoiding corrosion, scale buildup, and other potential failures caused by contact with the liquid in the flow channel. Furthermore, by utilizing the principle of pressure differential generated before and after liquid flows through the elongated hole, the present invention can operate under low pressure conditions and can also reset normally under high pressure without affecting accurate signal transmission. Furthermore, the installation direction is not fixed; simply connect the water inlet of the present invention to the main flow channel being measured, and the present invention does not affect the main flow channel flow.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention utilizes the principle of pressure difference between the two sides of the fluid through the elongated hole, and is designed to give priority to the water flow through the elongated hole, so it can operate normally when the water pressure is very low.

[0016] 2. After the main water channel of the present invention is opened, it does not affect the flow of the main water channel. The greater the water flow, the larger the main water channel of the module is opened.

[0017] 3. The signal transmitting device of the present invention does not contact liquid, thus avoiding problems such as unstable operation and affected signal transmission caused by contact with liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with examples, and the advantages and implementation modes of the present invention will become more apparent. The contents shown in the accompanying drawings are only used to illustrate the present invention and do not constitute any limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 This is the structural explosion diagram of the present invention

[0020] Figure 2 This is a circuit connection diagram of the present invention

[0021] Figure 3 This is a structural diagram of the present invention when the main waterway enters the channel and water begins to flow.

[0022] Figure 4This is a structural diagram of the present invention when the main waterway inlet channel continues to have water flow.

[0023] Figure 5 This invention Figure 4 Schematic diagram of the three-dimensional structure

[0024] Figure 6 This is a structural diagram of the present invention when the main waterway inlet channel continues to have water flow but the main waterway drainage channel is closed.

[0025] Figure 7 It is a force diagram of the present invention.

[0026] In the picture:

[0027] 1. Monitoring sensor 2. Sealing ring Ⅰ

[0028] 3. Signal transmitter 4. Housing

[0029] 5. Return spring 6. Signal inducing device

[0030] 7. Sealing diaphragm 8. Diaphragm frame

[0031] 9. Back cover 10. Sealing ring II

[0032] 11. Filter device 12. Power supply cable

[0033] 13. Data sensor 14. Data signal line

[0034] 15. Display module 16. Drainage channel

[0035] 17. Power supply assembly 18. Main water channel

[0036] 19. Loading body 20. First cavity

[0037] 21. Second cavity 22. Main water inlet channel

[0038] 23. Main waterway drainage channel 24. Slender hole

[0039] F1: Return spring S1: Water contact area below the diaphragm;

[0040] F2: Water pressure acting on the bottom of the diaphragm S2: Water contact area above the diaphragm

[0041] F3: Water pressure acting on the top of the diaphragm P1: Water pressure acting on the bottom of the diaphragm

[0042] P2: Water pressure above the diaphragm DETAILED DESCRIPTION

[0043] like Figures 1 to 7As shown, the present invention provides a liquid flow start-up signal transmission module, including a monitoring sensor 1, which is installed in a loading body 19 of the main waterway. The monitoring sensor 1 includes a sealing ring I2, a signal transmitting device 3, a housing 4, a reset spring 5, a signal inducing device 6, a sealing diaphragm 7, a diaphragm frame 8, a back cover 9, a sealing ring II 10 and a filtering device 11.

[0044] The outer shell 4 and the back cover 9 are assembled together to load various components. The return spring 5, the signal inducing device 6, the sealing diaphragm 7, the diaphragm frame 8 and the filtering device 11 are installed in the cavity formed by the outer shell 4 and the back cover 9 from top to bottom. A drainage channel 16 is provided at the intersection of the outer shell 4 and the back cover 9.

[0045] The sealing diaphragm 7 is displaced when water flows through the main waterway 18. The diaphragm frame 8 is fixed to the sealing diaphragm 7 and moves with it. The signal inducing device 6 is mounted on the diaphragm frame 8 and moves with it. A return spring 5 is installed between the housing 4 and the sealing diaphragm 7 to reset the sealing diaphragm 7 and automatically close the main waterway 18. A signal transmitter 3 is mounted on the top of the housing. The signal transmitter 3 transmits a predetermined switching signal. The return spring 5 triggers the signal inducing device 6 to transmit the predetermined switching signal. When the signal inducing device 6 moves to the operating distance of the signal transmitter 3, it triggers the signal inducing device 6 to operate.

[0046] The sealing ring I2 is embedded in the outer side of the housing 4, and the sealing ring II10 is embedded in the outer side of the back cover 9. The sealing ring I2 and the sealing ring II10 play a sealing role, allowing water to flow through the predetermined channel. The filter device 11 filters impurities to prevent clogging.

[0047] The monitoring sensor 1 is connected to the power supply assembly 17 and the display module 15 via power cables 12. The display module 15 is also connected to the power supply assembly 17 via power cables 12 and to the data sensor 13 via data signal cables 14. The power supply assembly 17 provides power to the entire module. The power cables 12 connect power to the display module 15. The data sensor 13 is responsible for collecting data signals. The data signal cables 14 are responsible for transmitting data. The display module 15 is responsible for signal processing and display.

[0048] The loading body 19 includes a first cavity 20 (enclosed by the loading body 19, sealing ring II 10, diaphragm frame 8, and rear cover 9) and a second cavity 21 (enclosed by the diaphragm frame 8, sealing diaphragm 7, and outer shell 4). The loading body 19, outer shell 4, sealing ring I 2, rear cover 9, and sealing diaphragm 7 form a main waterway drainage channel 23. The first cavity 20 has an elongated hole 24 that connects to the second cavity 21. The elongated hole 24 passes through the center of the sealing diaphragm 7 and diaphragm frame 8. A filter device 11 is located below the elongated hole 24 to filter the water flow through the channel. The second cavity 20 is connected to the main waterway drainage channel 23 by a drain channel 16. After the sealing diaphragm 7 and diaphragm frame 8 are displaced a certain distance, a water passage is formed between the back cover 9 and the main waterway channel 18.

[0049] Working principle:

[0050] When the water in the first cavity 20 flows from the elongated hole 24 to the second cavity 21, a difference in water pressure will be produced in the two cavities. The water pressure on the upper and lower sides of the sealing diaphragm 7 is different, that is, a force difference is generated. The force difference will cause the sealing diaphragm 7 to move toward the side with smaller force.

[0051] When water begins to flow into the first cavity 20, the water flow will quickly fill the first cavity 20 and then flow from the elongated hole 24 to the second cavity 21. Since the first cavity 20 and the second cavity 21 are connected through the elongated hole 24, the water pressure in the first cavity 20 is greater than that in the second cavity 21, that is, the force exerted on the bottom of the sealing diaphragm 7 is greater than that on the top. When the force exerted by the water flow on the bottom of the sealing diaphragm 7 is greater than the sum of the force exerted on the top and the force exerted by the reset spring 5, the sealing diaphragm 7 will be displaced, forming the main water channel 18 and allowing water to flow to the main water channel drainage channel 23. The displacement of the sealing diaphragm 7 drives the diaphragm skeleton 8 to move, moving the signal inducing device 6 into the working area of ​​the signal transmitting device 3. The signal transmitting device 3 is connected to a power source to enable the display module 15 to work, drive the data sensor 13 to collect data, and then display the collected data signal.

[0052] When the main water drainage channel 23 is closed, the water pressure in the second cavity 21 will rise rapidly, and the forces of the water pressure above and below the sealing diaphragm 7 will offset each other. Under the action of the reset spring 5, the sealing diaphragm 7 will be displaced, causing the sealing diaphragm 7 to move and close the main water channel 18. At the same time, the signal inducing device 6 will leave the working area of ​​the signal transmitting device 3, and the signal transmitting device 3 will disconnect the power supply and enter the monitoring state.

[0053] Specific waterway principles and working processes Figures 3 to 7 As shown,

[0054] like Figure 3 and Figure 7 As shown, when the main waterway inlet channel 22 begins to flow:

[0055] 1. When water flows through the main water inlet channel 22, the water flow quickly fills the cavity below the sealing diaphragm 7, and water flows from the elongated hole 24 to the top of the sealing diaphragm 7.

[0056] 2. The sealing diaphragm 7 is in the state of closing the main waterway 18. Two cavities are formed on the upper and lower surfaces of the sealing diaphragm 7. A first cavity 20 is formed on the lower surface of the sealing diaphragm 7, and a second cavity 21 is formed on the upper surface of the sealing diaphragm 7. The first cavity 20 has a drain channel 16 that communicates with the main waterway drainage channel 22. The first cavity 20 and the second cavity 21 are connected by an elongated hole 24.

[0057] 3. When the water in the first cavity 20 flows from the elongated hole 24 to the second cavity 21 , a pressure difference will occur between the two cavities, and the pressure in the first cavity 20 is greater than the pressure in the second cavity 21 .

[0058] 4. After water flows through main water channel 18, the water pressure below sealing diaphragm 7 generates a force F2, which is the product of P1 and S1. The water pressure above sealing diaphragm 7 generates a force F3, which is the product of P2 and S2. The total force above sealing diaphragm 7 is the sum of F1 and F3.

[0059] like Figure 4 、 Figure 5 and Figure 7 As shown, when the main waterway inlet channel 22 continues to have water flow:

[0060] 1. When water flows through the main waterway drainage channel 23, the water in the second chamber 21 also flows into the main waterway drainage channel 23. Because the main waterway drainage channel 23 has a large flow area and a high water flow rate, the pressure drops rapidly. The second chamber 21 is connected to the main waterway drainage channel 23 through the drain channel 16, causing the pressure to drop rapidly. Furthermore, because the second chamber 21 is connected through the elongated hole 24 and the water inflow is small, the pressure difference between the second chamber 21 and the first chamber 20 increases sharply. The pressure changes in the two chambers will cause the forces acting on the upper and lower surfaces of the sealing diaphragm 7 to change.

[0061] 2. The main waterway drain channel 23 continues to drain, and the water pressure in the second chamber 21 continues to decrease. Meanwhile, the main waterway inlet channel 22 continues to flow, and the water pressure in the first chamber 20 continues to rise. When the pressure reaches a certain level, the water flow pushes the sealing diaphragm 7 to displace, opening the module's main waterway channel 18 and draining some of the water there. This reduces the amount of water in the main waterway inlet channel 22, and thus reduces the water pressure beneath the sealing diaphragm 7. When the pressure decreases to a certain level, equilibrium is maintained, meaning that F2 equals F1 plus F3.

[0062] 3. The displacement of the sealing diaphragm 7 drives the diaphragm frame 8 to move, thereby driving the signal inducing device 6 to enter the working area of ​​the signal transmitting device 3, and the signal transmitting device 3 works and sends signals.

[0063] like Figure 6 and Figure 7 As shown, the main waterway inlet channel 22 continues to have water flow, but when the main waterway drain channel 23 is closed:

[0064] 1. When the main waterway drainage channel 23 is closed, it fills with water and the pressure rises. Due to the low flow of water in the second chamber 21 connected to the main waterway drainage channel 23, the pressure in the chamber rises rapidly. Although the passage through the elongated hole 4 creates a pressure difference above and below the sealing diaphragm 7, the water flow through the module's main waterway channel 18 can quickly increase the water pressure above the sealing diaphragm 7.

[0065] 2. At this time, the force on the diaphragm is that F2 is equal to F3, and the remaining F1 will push the sealing diaphragm 7 to reset until the main water channel 18 of the module is closed.

[0066] 3. After the main water channel 18 of the module is closed, although the water flow through the elongated hole 24 will cause a water pressure difference between the upper and lower parts of the sealing diaphragm 7, the main water channel drainage channel 23 is still closed and no water flows. The water pressure above and below the sealing diaphragm 7 can also be balanced through the elongated hole 24. The remaining F1 force pushes the sealing diaphragm 7 to the designed initial position, and at the same time pushes the signal inducing device 6 away from the working area of ​​the signal transmitting device 3, so that it enters the monitoring state.

[0067] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A liquid flow start transmission signal module, characterized by: The monitoring sensor includes a housing and a back cover. A reset spring, a signal inducing device, a sealing diaphragm and a diaphragm frame are installed in the cavity formed by assembling the housing and the back cover. The diaphragm frame is fixed on the sealing diaphragm and moves with the sealing diaphragm. The signal inducing device It is installed on the diaphragm frame and can generate displacement together. The reset spring is installed between the shell and the sealing diaphragm to reset the sealing diaphragm. A signal transmitting device is installed on the top of the shell. A slender hole is provided at the center of the sealing diaphragm and the diaphragm frame. The monitoring sensor is installed in the loading body of the main waterway. The loading body includes a first cavity and a second cavity. The first cavity is surrounded by the loading body, sealing ring II, diaphragm frame, and back cover. The second cavity is surrounded by the diaphragm frame, sealing diaphragm, and the shell. The main waterway drainage channel is surrounded by the loading body, shell, sealing ring I, back cover, and sealing diaphragm. The first cavity is provided with a slender hole connected to the second cavity. The slender hole passes through the sealing diaphragm and the center of the diaphragm frame. A filtering device is provided below the slender hole to filter the water flow in the channel. The second cavity is connected to the main waterway drainage channel by a drain channel. After the sealing diaphragm and the diaphragm frame are displaced a certain distance, a water passage is formed between the back cover and the main waterway channel.

2. The liquid flow activation transmission signal module according to claim 1, characterized in that: A water drainage channel is provided at the intersection of the shell and the rear cover.

3. The liquid flow activation transmission signal module according to claim 2, characterized in that: The first cavity is communicated with the main water inlet channel.

4. The liquid flow activation signal transmission module according to claim 1, characterized in that: The monitoring sensor includes a sealing ring I and a sealing ring II. The sealing ring I is embedded in the outer side of the shell and is located between the shell and the inner wall of the loading body. The sealing ring II is embedded in the outer side of the back cover and is located between the back cover and the inner wall of the loading body.

5. The liquid flow activation transmission signal module according to claim 1, characterized in that: The monitoring sensor is connected to the power supply component and the display module respectively, and the display module is connected to the power supply component and the data sensor respectively.

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