Beidou dual-channel groundwater monitoring waterproof protection device and method

Abstract

The present application relates to the field of groundwater monitoring technology, and specifically discloses a Beidou dual-channel groundwater monitoring waterproof protection device and method, which includes a housing, a housing cover threadedly connected to the housing, a PCB board provided in the housing cover and integrated with a controller and a communication module, a transmission cable electrically connected to the PCB board, and a probe electrically connected to the transmission cable, a support ring and a storage cover sleeved on the support ring and adapted to the support ring are provided in the housing, a bentonite layer is accommodated between the support ring and the storage cover, a generating structure for generating current by reacting with water is also provided in the housing, a current sensor for detecting the generating structure is provided in the housing, and the current sensor is electrically connected to the PCB board. The present application has the effect of improving the water seepage prevention in the housing and notifying the staff in time after water seepage.

Description

Technical Field

[0001] The present application relates to the field of groundwater monitoring technology, and in particular to a Beidou dual-channel groundwater monitoring waterproof protection device and method. Background Art

[0002] Groundwater monitoring is for groundwater monitoring and management departments to monitor groundwater levels, water quality and other data within their jurisdiction in order to keep abreast of dynamic changes and provide long-term protection for groundwater.

[0003] Groundwater monitoring is mainly carried out by extending a water level probe into the corresponding position of the groundwater for detection. The detected signal is transmitted to the controller through a transmission cable, and then the controller transmits the corresponding signal to the communication module, and the communication module transmits the signal to the staff. The equipment is mainly powered by batteries, photovoltaic panels or other external power supplies. The external power supply can provide relatively stable and continuous power for the entire system, but the construction cost is high and the floor space is large. The battery power supply is relatively short-term, but the construction cost is low and the applicability is strong. The battery-powered groundwater monitoring device has its shell placed in a protection well and the probe is located underwater. The battery quantity parameter is: generally three to five No. 1 dry batteries, and the battery needs to provide 2-4 years of power consumption for the power-consuming components in the shell. The shell is threaded and sealed by a shell cover, and a gasket is generally installed between the shell cover and the shell for waterproofing. A few shells are also equipped with sensors such as water vapor sensors, but the installation of sensors will increase additional power consumption and affect the battery life of the entire device.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: in a battery-powered groundwater monitoring device, since the shell is generally located in a place with a relatively complex environment, especially in a harsh environment with high salinity, large temperature differences, and strong corrosion, the gasket is easily corroded or rapidly aged, which weakens the sealing of the shell cover to the shell, thereby causing water seepage in the shell, and when water seeps into the shell, the staff cannot promptly detect the situation inside the shell. Summary of the invention

[0005] In order to improve the problem of water seepage in the shell under harsh conditions, the present application provides a Beidou dual-channel groundwater monitoring waterproof protection device and method.

[0006] The present application provides a Beidou dual-channel groundwater monitoring waterproof protection device and method using the following technical solutions:

[0007] A Beidou dual-channel groundwater monitoring waterproof protection device and method, comprising a shell, a shell cover threadedly connected to the shell, a PCB board arranged in the shell cover and integrated with a controller and a communication module, a transmission cable electrically connected to the PCB board, and a probe electrically connected to the transmission cable, characterized in that: a support ring and a material storage cover sleeved on the support ring and adapted to the support ring are arranged in the shell, a bentonite layer is accommodated between the support ring and the material storage cover, an electric generation structure that generates electric current when it reacts with water is also arranged in the shell, a current sensor for detecting the electric generation structure is arranged in the shell, and the current sensor is electrically connected to the PCB board;

[0008] The shell is provided with a waterproof groove at the end close to the shell cover, the support ring is arranged on the bottom wall of the waterproof groove, a disc spring is arranged between the bottom wall of the waterproof groove and the support ring, when the shell cover is tightened on the shell, the disc spring is in a compressed state, a conversion component for converting the potential energy of the disc spring into electrical energy is also arranged in the shell, and the current sensor is also electrically connected to the conversion component;

[0009] The conversion component includes a rigid disc-shaped plate arranged between the disc spring and the bottom of the waterproof groove, a trigger rod fixed to the inner side of the disc spring and a piezoelectric ceramic electrically connected to the current sensor, the trigger rod is opposite to the piezoelectric ceramic, and the crushing force of the rigid disc-shaped plate is within the elastic force range of the disc spring.

[0010] By adopting the above technical solution, when the moisture in the environment breaks through the seal between the shell cover and the shell, the moisture penetrates into the storage cover and contacts with the bentonite layer. At this time, the bentonite layer will absorb the moisture deep into the shell, and the bentonite layer will swell after absorbing water. The swollen bentonite layer will further extend to the gap at the leaking place and seal the leaking place to prevent subsequent moisture from continuing to enter the shell. At the same time, the moisture also reacts with the power generation structure, causing the power generation structure to generate current and conduct the current to the current sensor. The current sensor that receives the current sends a signal to the PCB board, and then the PCB board sends a signal to the staff, so that the staff can promptly understand that water seepage has occurred in the shell. In addition, the process of the current sensor detecting the current does not need to be in standby mode for a long time like other sensors to consume power and thus affect the battery life of the entire device. The current sensor only needs to be activated by the current generated on the shell cover after water seepage. When the shell cover is tightened on the shell, the support ring is squeezed by the disc spring, so that the storage cover and the shell The cover is pressed tighter to avoid excessive water seepage, which causes the water to be absorbed by the bentonite layer in time. When the bentonite layer continues to expand due to excessive water seepage, the expanded bentonite layer squeezes the support ring in the direction away from the shell cover, and the support ring compresses the disc spring. When the elastic potential energy stored in the disc spring is large, the pressure exerted by the disc spring on the rigid disc piece is large. When the rigid disc piece is difficult to bear the continuously increasing pressure, the rigid disc piece breaks. At this time, the disc spring is compressed and deformed, and then the trigger rod moves quickly in the direction close to the depressed ceramic and collides with the piezoelectric ceramic, causing the piezoelectric ceramic to generate instantaneous current. After receiving the current generated by the piezoelectric ceramic, the current sensor transmits the signal to the PCB board, and finally the PCB board transmits it to the staff. That is, when an unexpected situation occurs in the power generation structure, the cooperation of the disc spring and the conversion component can still smoothly activate the current sensor, further ensuring that the staff receives the situation that water has seeped into the shell, and there is no need for a battery to power the conversion component, which does not affect the operating time of the entire device.

[0011] Optionally, the power generation structure includes a positive elastic guide rod and a negative elastic guide rod electrically connected to the current sensor, the storage cover is made of magnesium, the shell cover is made of copper, the positive elastic guide rod is tightly pressed against the shell cover, and the negative elastic guide rod is tightly pressed against the inner wall of the storage cover.

[0012] By adopting the above technical solution, after water seepage occurs in the shell, the water reacts with the magnesium storage cover, causing the magnesium to lose electrons and undergo an oxidation reaction to become magnesium ions, and a reduction reaction occurs at the shell cover, that is, the hydrogen ions in the water gain electrons, and current is generated in this process. The storage cover is the anode (negative electrode) and the shell cover is the cathode (positive electrode). The current flows from the shell cover to the positive electrode elastic guide rod and enters the current sensor, and then flows out from the negative electrode elastic guide rod to the storage cover to form a closed loop, so that the current sensor can successfully detect the current generated in the above process.

[0013] Optionally, the shell cover includes an end cover, an externally threaded cover ring and an internally threaded cover ring, the shell includes a cylinder, an externally threaded shell ring and an internally threaded shell ring, the externally threaded cover ring is threadedly matched with the externally threaded shell ring, the internally threaded cover ring is threadedly matched with the internally threaded shell ring, and the pitch of the externally threaded cover ring and the internally threaded cover ring are the same, a sealing ring is provided at one end of the externally threaded cover ring away from the end cover, and a sealing ring is also provided at one end of the internally threaded shell ring away from the cylinder.

[0014] By adopting the above technical scheme, the double-layer threaded structure of the shell cover and the shell body effectively improves the sealing between the shell cover and the shell body, and when in harsh environments such as large temperature difference, strong corrosion, and high salinity, the sealing ring on the outer layer of the external threaded cover ring is prone to aging, resulting in a decrease in sealing performance, and the addition of the internal threaded shell ring, that is, a total of double-layer sealing ring, further improves the waterproof performance.

[0015] Optionally, the transmission cable includes an inner cable located in the shell, a transition cable passing through the shell cover, and an outer cable located outside the shell, the shell cover and the transition cable are sealedly connected, the inner cable and the transition cable are electrically connected via a conventional connector, and the transition cable and the outer cable are electrically connected via a waterproof connector.

[0016] By adopting the above technical solution, when removing the shell cover for maintenance work, first separate the waterproof connector to separate the outer cable and the transition cable, then unscrew the shell cover to separate the inner cable and the transition cable to facilitate subsequent maintenance work. At the same time, the waterproof connector also effectively protects the connection between the outer cable and the inner cable, and when the outer cable is damaged or corroded, it only needs to be unplugged for replacement.

[0017] Optionally, a small amount of water-soluble inorganic salt is mixed between the bentonite layer and the storage cover.

[0018] By adopting the above technical solution, after moisture appears in the shell, the inorganic salt dissolves into ions after being dissolved in water, and the dissociated ions further improve the conductivity of the aqueous solution and promote the transfer of charges, thereby increasing the intensity of the current received by the current sensor.

[0019] Optionally, the shell is hollow inside and is made of plastic.

[0020] By adopting the above technical solution, the hollow shape of the shell effectively improves the thermal insulation of the shell. When the temperature difference in the environment changes greatly, the temperature difference in the shell changes less, thereby effectively avoiding the phenomenon of condensation water inside the shell. In addition, the plastic material has weak signal isolation for the PCB board, resulting in low signal shielding strength for the PCB board.

[0021] A Beidou dual-channel groundwater monitoring and waterproofing method comprises the following steps:

[0022] S1. Preliminary waterproofing: When there is a lot of moisture in the environment or the water level reaches the connection between the shell cover and the shell, the moisture is first blocked by the two sealing rings. At the same time, when the temperature difference in the environment changes greatly, the hollow shell makes the temperature change inside the shell smaller, thereby avoiding the generation of condensed water inside the shell;

[0023] S2. Water leakage detection: When water enters the shell due to aging of the elastic ring and other reasons, the water gradually dissolves the inorganic salt layer. The dissolved solution reacts with the storage cover, causing the storage cover to undergo an oxidation reaction and lose electrons, and a reduction reaction occurs at the shell cover, thereby causing the current sensor to detect the current. At the same time, the current sensor sends a signal to the PCB board, and the PCB board sends a signal to the staff, so that the staff can receive the water leakage in the shell;

[0024] S3, deep waterproofing: after a large amount of water enters the shell, the water passes through the storage cover and reacts with the bentonite layer, causing the bentonite layer to swell and absorb the water entering the shell. At the same time, the swollen bentonite layer seals the water leakage between the shell and the shell cover;

[0025] S4. Detection and judgment: When the leaking gap is large and the water leakage is too much, the bentonite layer expands further, causing the support ring to move away from the end cover and the disc spring to be squeezed by the support ring. When the disc spring is under too much pressure, the disc spring will crush the rigid disc sheet. At this time, the inner ring of the disc spring moves downward, causing the trigger rod to instantly hit the piezoelectric ceramic, causing the current sensor to sense the instantaneous current of the piezoelectric ceramic. That is, when the staff receives the instantaneous current signal, the leakage in the shell is more serious.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. After water seepage occurs in the shell, the water reacts with the magnesium storage cover, causing the magnesium to lose electrons and undergo an oxidation reaction to become magnesium ions. A reduction reaction occurs at the shell cover, i.e., the hydrogen ions in the water gain electrons. Current is generated in this process, and the storage cover is the anode (negative electrode) and the shell cover is the cathode (positive electrode). The current flows from the shell cover to the positive electrode elastic guide rod and enters the current sensor, and then flows out from the negative electrode elastic guide rod to the storage cover to form a closed loop, so that the current sensor can successfully detect the current generated in the above process. The current sensor that receives the current sends a signal to the PCB board, and then the PCB board sends a signal to the staff, so that the staff can promptly understand the water seepage in the shell. In addition, the current sensor does not need to be in a standby state for a long time like other sensors to consume power, thereby affecting the battery life of the entire device. The current sensor only needs to be activated by the current generated on the shell cover after water seepage;

[0028] 2. When the moisture in the environment breaks through the seal between the shell cover and the shell, the moisture penetrates into the storage cover and contacts the bentonite layer. At this time, the bentonite layer will absorb the moisture deep into the shell, and the bentonite layer will expand after absorbing water. The expanded bentonite layer will further extend to the gap of the leak and seal the leak to prevent subsequent moisture from entering the shell.

[0029] 3. When the bentonite layer continues to expand due to excessive water seepage, the expanded bentonite layer squeezes the support ring in the direction away from the shell cover. The support ring compresses the disc spring to increase the potential energy of the disc spring. In this process, the disc spring squeezes the rigid disc sheet. When the rigid disc sheet cannot bear the continuously increasing pressure, the rigid disc sheet breaks. At this time, the disc spring is compressed and deformed, and the trigger rod moves quickly toward the direction of the pressed ceramic and collides with the piezoelectric ceramic, causing the piezoelectric ceramic to generate instantaneous current. After receiving the current generated by the piezoelectric ceramic, the current sensor transmits the signal to the PCB board, and finally the PCB board transmits it to the staff. When the staff receives the signal corresponding to the instantaneous current, they can understand that the water seepage in the shell is serious and needs timely maintenance.

[0030] 4. The double-layer thread structure of the shell cover and the shell effectively improves the sealing between the shell cover and the shell. When in a harsh environment with large temperature difference, strong corrosion, high salinity, etc., the sealing ring on the outer thread cover ring is prone to aging, resulting in a decrease in sealing performance. The addition of the inner thread shell ring, that is, a total of double-layer sealing rings, further improves the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 2 is along Figure 1 The middle AA line is mainly used to show the cross-sectional structure diagram of the housing, housing cover, PCB board and transmission cable;

[0033] Figure 3 yes Figure 2 Schematic diagram of the enlarged portion B.

[0034] Figure numerals: 11, shell; 111, cylinder; 112, external thread shell ring; 113, internal thread shell ring; 114, waterproof groove; 12, shell cover; 121, end cover; 122, external thread cover ring; 123, internal thread cover ring; 13, PCB board; 14, transmission cable; 141, inner cable; 142, transition cable; 143, outer cable; 144, conventional connector; 145, waterproof connector; 15, probe; 21, support ring; 22, storage cover; 23, bentonite layer; 3, power generation structure; 31, positive elastic guide rod; 32, negative elastic guide rod; 4, current sensor; 5, disc spring; 6, conversion assembly; 61, rigid disc; 62, trigger rod; 63, piezoelectric ceramic; 7, sealing ring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] Embodiment 1

[0037] The present application embodiment discloses a Beidou dual-channel groundwater monitoring and waterproof protection device. Figure 1 , 2 and Figure 3 The Beidou dual-channel groundwater monitoring waterproof protection device and method include a hollow plastic shell 11, a shell cover 12 threadedly connected to the shell 11, a PCB board 13 placed in the shell cover 12 and integrated with a controller and a communication module, a transmission cable 14 electrically connected to the PCB board 13 and a probe 15 electrically connected to the transmission cable 14, the probe 15 is an IP68-level waterproof probe 15, the PCB board 13 has 4G full network access and Beidou main and standby dual-channel transmission functions, a support ring 21 and a storage cover 22 sleeved on the support ring 21 and adapted to the support ring 21 are arranged in the shell 11, a bentonite layer 23 is accommodated between the support ring 21 and the storage cover 22, and an electric structure 3 that generates current when it reacts with water is also arranged in the shell 11, a current sensor 4 for detecting the electric structure 3 is arranged in the shell 11, and the current sensor 4 is electrically connected to the PCB board 13.

[0038] When the moisture in the environment breaks through the seal between the shell cover 12 and the shell 11, the moisture penetrates into the storage cover 22 and contacts the bentonite layer 23. At this time, the bentonite layer 23 will absorb the moisture deep into the shell 11, and the bentonite layer 23 will expand after absorbing water. The expanded bentonite layer 23 will further extend to the gap at the leaking place and block the leaking place to prevent subsequent moisture from continuing to enter the shell 11; at the same time, the moisture also reacts with the power generation structure 3, causing the power generation structure 3 to generate current and conduct the current to the current sensor 4. The current sensor 4 that receives the current sends a signal to the PCB board 13, and then the PCB board 13 sends a signal to the staff. , which makes it easy for the staff to promptly learn that water seepage has occurred in the shell 11, and the current sensor 4 does not need to be in a standby state for a long time like other sensors to consume power and thus affect the battery life of the entire device. The current sensor 4 only needs to be activated by the current generated on the shell cover 12 after water seepage; the hollow shape of the shell 11 effectively improves the thermal insulation of the shell 11. When the temperature difference in the environment changes to a large extent, the temperature difference in the shell 11 changes to a small extent, thereby effectively avoiding the phenomenon of condensed water inside the shell 11, and the plastic material has a weak signal isolation on the PCB board 13, so that the signal shielding strength of the PCB board 13 is low.

[0039] Reference Figure 3 The power generation structure 3 includes a positive elastic guide rod 31 and a negative elastic guide rod 32 electrically connected to the current sensor 4. The storage cover 22 can be made of magnesium or zinc, and the shell cover 12 can be made of copper or iron. In the present application, the storage cover 22 is made of magnesium and the shell cover 12 is made of copper. The positive elastic guide rod 31 is tightly pressed against the shell cover 12, and the negative elastic guide rod 32 is tightly pressed against the inner wall of the storage cover 22. A small amount of water-soluble inorganic salt is also mixed between the bentonite layer 23 and the storage cover 22. The inorganic salt can be ferrous sulfate, ferric sulfate or copper sulfate, etc. In the present application, the inorganic salt is ferrous sulfate, which is oxidizing and less polluting.

[0040] After water seepage occurs in the shell 11, ferrous sulfate dissolves in water, causing the magnesium on the storage cover 22 to lose electrons and undergo an oxidation reaction to form magnesium ions, while the ferrous ions at the shell cover 12 gain electrons and undergo a reduction reaction. Current is generated in this process, and the storage cover 22 is an anode (negative electrode) and the shell cover 12 is a cathode (positive electrode). The current flows from the shell cover 12 to the positive electrode elastic guide rod 31 and enters the current sensor 4, then flows out from the negative electrode elastic guide rod 32 to the storage cover 22, and then enters the shell cover 12 through the salt solution to form a closed loop, so that the current sensor 4 can smoothly detect the current generated in the above process. At the same time, since the salt solution dissociates into ions after dissolving in water, the dissociated ions further improve the conductivity of the aqueous solution and promote the transfer of charge. The reaction of magnesium with the ferrous sulfate solution is more intense than that with water, thereby increasing the intensity of the current received by the current sensor 4 and avoiding the current generated due to the slow reaction speed being less than the detection range of the current sensor 4.

[0041] Reference Figure 3 A waterproof groove 114 is provided at the end of the shell 11 close to the shell cover 12, and a support ring 21 is arranged on the bottom wall of the waterproof groove 114. A disc spring 5 is arranged between the bottom wall of the waterproof groove 114 and the support ring 21. When the shell cover 12 is tightened on the shell 11, the disc spring 5 is in a compressed state. A conversion component 6 for converting the potential energy of the disc spring 5 into electrical energy is also arranged in the shell 11. The conversion component 6 includes a rigid disc sheet 61 arranged between the disc spring 5 and the bottom of the waterproof groove 114, a trigger rod 62 fixed to the inner side of the disc spring 5 and opposite to the piezoelectric ceramic 63, and a piezoelectric ceramic 63 electrically connected to the current sensor 4. The rigid disc sheet 61 and the disc spring 5 are placed with the outer circles away from each other and the inner circles in contact with each other, and the crushing force of the rigid disc sheet 61 is within the elastic force range of the disc spring 5.

[0042] When the shell cover 12 is tightened on the shell body 11, the support ring 21 is squeezed by the disc spring 5, so that the storage cover 22 and the shell cover 12 are pressed more tightly to avoid excessive water seepage and the water is not absorbed by the bentonite layer 23 in time. When the bentonite layer 23 continues to expand due to excessive water seepage, the expanded bentonite layer 23 squeezes the support ring 21 in the direction away from the shell cover 12. The support ring 21 compresses the disc spring 5 to increase the potential energy of the disc spring 5 continuously. In this process, the disc spring 5 squeezes the rigid disc piece 61. When the rigid disc piece 61 can no longer bear the continuously increasing pressure, the rigid disc piece 61 breaks. At this time, the disc spring 5 is compressed and deformed, so that the trigger rod 62 moves quickly in the direction close to the ceramic that is pressed down and collides with the piezoelectric The ceramics 63 collide with each other, causing the piezoelectric ceramic 63 to generate an instantaneous current. After receiving the current generated by the piezoelectric ceramic 63, the current sensor 4 transmits the signal to the PCB board 13, and finally the PCB board 13 transmits it to the staff, so that the staff receives the signal corresponding to the instantaneous current and can understand that the water seepage in the shell 11 is relatively serious and needs timely maintenance. At the same time, when the magnesium storage cover 22 is severely oxidized and causes a slow reaction speed with water, causing the current intensity to be lower than the detection range of the current sensor 4, resulting in the current sensor 4 being unable to be activated, the cooperation of the disc spring 5 and the conversion assembly 6 can still successfully activate the current sensor 4, further ensuring that the staff receives the situation that water has seeped into the shell 11.

[0043] Reference Figure 2 The shell cover 12 includes an end cover 121, an externally threaded cover ring 122 and an internally threaded cover ring 123. The shell body 11 includes a cylinder body 111, an externally threaded shell ring 112 and an internally threaded shell ring 113. The externally threaded cover ring 122 is threadably matched with the externally threaded shell ring 112, and the internally threaded cover ring 123 is threadably matched with the internally threaded shell ring 113. The pitches of the externally threaded cover ring 122 and the internally threaded cover ring 123 are the same. A sealing ring 7 is provided at one end of the externally threaded cover ring 122 away from the end cover 121, and a sealing ring 7 is also provided at one end of the internally threaded shell ring 113 away from the cylinder body 111. The double-layer threaded structure of the shell cover 12 and the shell body 11 effectively improves the sealing between the shell cover 12 and the shell body 11. When in a harsh environment with large temperature difference, strong corrosion, high salinity, etc., the sealing ring 7 on the outer threaded cover ring 122 is prone to aging, resulting in a decrease in sealing performance. The addition of the inner threaded shell ring 113, that is, a total of double-layer sealing ring 7, further improves the waterproof performance.

[0044] Reference Figure 1 , Figure 2 and Figure 3The transmission cable 14 includes an inner cable 141 located in the shell 11, a transition cable 142 penetrating the shell cover 12, and an outer cable 143 located outside the shell 11. The shell cover 12 and the transition cable 142 are sealed and connected by sealant. A conventional connector 144 is electrically connected between the inner cable 141 and the transition cable 142, and an IP68-level waterproof connector 145 is electrically connected between the transition cable 142 and the outer cable 143. When the shell cover 12 is disassembled for maintenance, the waterproof connector 145 is first separated to separate the outer cable 143 and the transition cable 142, and then the shell cover 12 is unscrewed to separate the inner cable 141 and the transition cable 142 to facilitate subsequent maintenance operations. At the same time, the waterproof connector 145 also effectively protects the connection between the outer cable 143 and the inner cable 141, and when the outer cable 143 is damaged or corroded, it only needs to be unplugged for replacement.

[0045] The implementation principle of a Beidou dual-channel groundwater monitoring waterproof protection device and method in the embodiment of the present application is as follows: when the moisture in the environment breaks through the seal between the shell cover 12 and the shell 11, ferrous sulfate dissolves into water, causing the magnesium on the storage cover 22 to lose electrons and undergo an oxidation reaction to form magnesium ions, and the ferrous ions at the shell cover 12 gain electrons and undergo a reduction reaction, generating current in the process, and then the current sensor 4 detects the current generated in the above process, and the current sensor 4 that receives the current sends a signal to the PCB board 13, and then the PCB board 13 sends a signal to the staff, so that the staff can promptly understand the water seepage in the shell 11;

[0046] When the water continues to penetrate into the storage cover 22 and contacts the bentonite layer 23, the bentonite layer 23 will absorb the water deep into the housing 11, and the bentonite layer 23 will expand after absorbing the water. The expanded bentonite layer 23 will further extend to the gap at the leaking place and block the leaking place to prevent the subsequent water from continuing to enter the housing 11.

[0047] When the bentonite layer 23 continues to expand further due to excessive water seepage, the expanded bentonite layer 23 squeezes the support ring 21 in the direction away from the shell cover 12, and the support ring 21 compresses the disc spring 5 to increase the potential energy of the disc spring 5. In this process, the disc spring 5 squeezes the rigid disc piece 61. When the rigid disc piece 61 is unable to bear the continuously increasing pressure, the rigid disc piece 61 breaks. At this time, the disc spring 5 is compressed and deformed, and the trigger rod 62 moves rapidly toward the direction of pressing down the ceramic and collides with the piezoelectric ceramic 63, causing the piezoelectric ceramic 63 to generate an instantaneous current. After receiving the current generated by the piezoelectric ceramic 63, the current sensor 4 transmits the signal to the PCB board 13, and finally the PCB board 13 transmits it to the staff, so that the staff can receive the signal corresponding to the instantaneous current to understand that the water seepage in the shell 11 is relatively serious and needs timely maintenance.

[0048] Embodiment 2

[0049] The present application embodiment discloses a Beidou dual-channel groundwater monitoring and waterproof protection method, referring to Figure 1 , Figure 2 and Figure 3 , a Beidou dual-channel groundwater monitoring and waterproof protection method comprises the following steps:

[0050] S1. Preliminary waterproofing: When there is a lot of moisture in the environment or the water level reaches the connection between the shell cover 12 and the shell 11, the moisture is first blocked by the two sealing rings 7. At the same time, when the temperature difference in the environment changes greatly, the hollow shell 11 makes the temperature change inside the shell 11 smaller, thereby avoiding the generation of condensed water inside the shell 11;

[0051] S2, water leakage detection: after water enters the housing 11 due to reasons such as aging of the elastic ring, the water gradually dissolves the inorganic salt layer, and the dissolved solution reacts with the storage cover 22, causing the storage cover 22 to undergo an oxidation reaction and lose electrons, and a reduction reaction occurs at the shell cover 12, so that the current sensor 4 detects the current, and at the same time the current sensor 4 sends a signal to the PCB board 13, and the PCB board 13 sends a signal to the staff, so that the staff receives the water leakage in the housing 11;

[0052] S3, deep waterproofing: after a large amount of water enters the housing 11, the water passes through the storage cover 22 and reacts with the bentonite layer 23, causing the bentonite layer 23 to expand and absorb the water entering the housing 11, and at the same time, the expanded bentonite layer 23 blocks the water leakage between the housing 11 and the housing cover 12;

[0053] S4. Detection and judgment: When the leaking gap is large and the water leakage is too much, the bentonite layer 23 further expands, causing the support ring 21 to move away from the end cover 121, and the disc spring 5 is squeezed by the support ring 21. When the disc spring 5 is under too much pressure, the disc spring 5 crushes the rigid disc sheet 61. At this time, the inner ring of the disc spring 5 moves downward, and the trigger rod 62 instantly hits the piezoelectric ceramic 63, causing the current sensor to sense the instantaneous current of the piezoelectric ceramic 63. That is, when the staff receives the instantaneous current signal, the water leakage in the housing 11 is relatively serious.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A Beidou dual-channel groundwater monitoring waterproof protection device, comprising a housing (11), a housing cover (12) threadedly connected to the housing (11), a PCB board (13) arranged in the housing cover (12) and integrated with a controller and a communication module, a transmission cable (14) electrically connected to the PCB board (13), and a probe (15) electrically connected to the transmission cable (14), characterized in that: A support ring (21) and a material storage cover (22) sleeved on the support ring (21) and matched with the support ring (21) are arranged in the shell (11); a bentonite layer (23) is accommodated between the support ring (21) and the material storage cover (22); an electricity generating structure (3) for generating electric current by reacting with water is also arranged in the shell (11); a current sensor (4) for detecting the electricity generating structure (3) is arranged in the shell (11); and the current sensor (4) is electrically connected to the PCB board (13); The shell (11) is provided with a waterproof groove (114) at an end portion close to the shell cover (12); the support ring (21) is arranged on the bottom wall of the waterproof groove (114); a disc spring (5) is arranged between the bottom wall of the waterproof groove (114) and the support ring (21); when the shell cover (12) is tightened on the shell (11), the disc spring (5) is in a compressed state; a conversion component (6) for converting the potential energy of the disc spring (5) into electrical energy is also arranged in the shell (11); and the current sensor (4) is also electrically connected to the conversion component (6); The conversion component (6) comprises a rigid disc-shaped plate (61) arranged between the disc spring (5) and the bottom of the waterproof groove (114), a trigger rod (62) fixed to the inner side of the disc spring (5), and a piezoelectric ceramic (63) electrically connected to the current sensor (4), wherein the trigger rod (62) faces the piezoelectric ceramic (63), and the crushing force of the rigid disc-shaped plate (61) is within the elastic force range of the disc spring (5).

2. A Beidou dual-channel groundwater monitoring and waterproof protection device according to claim 1, characterized in that: The electricity generating structure (3) comprises a positive electrode elastic guide rod (31) and a negative electrode elastic guide rod (32) electrically connected to the current sensor (4); the material storage cover (22) is made of magnesium, and the shell cover (12) is made of copper; the positive electrode elastic guide rod (31) is tightly abutted against the shell cover (12), and the negative electrode elastic guide rod (32) is tightly abutted against the inner peripheral wall of the material storage cover (22).

3. A Beidou dual-channel groundwater monitoring and waterproof protection device according to claim 2, characterized in that: The shell cover (12) comprises an end cover (121), an externally threaded cover ring (122) and an internally threaded cover ring (123); the shell body (11) comprises a barrel (111), an externally threaded shell ring (112) and an internally threaded shell ring (113); the externally threaded cover ring (122) is threadably matched with the externally threaded shell ring (112); the internally threaded cover ring (123) is threadably matched with the internally threaded shell ring (113); the thread pitches of the externally threaded cover ring (122) and the internally threaded cover ring (123) are the same; a sealing ring (7) is provided at one end of the externally threaded cover ring (122) away from the end cover (121); and a sealing ring (7) is also provided at one end of the internally threaded shell ring (113) away from the barrel (111).

4. A Beidou dual-channel groundwater monitoring and waterproof protection device according to claim 1, characterized in that: The transmission cable (14) includes an inner cable (141) located in the shell (11), a transition cable (142) passing through the shell cover (12), and an outer cable (143) located outside the shell (11); the shell cover (12) and the transition cable (142) are sealedly connected, the inner cable (141) and the transition cable (142) are electrically connected via a conventional connector (144), and the transition cable (142) and the outer cable (143) are electrically connected via a waterproof connector (145).

5. The Beidou dual-channel groundwater monitoring and waterproof protection device according to claim 3 is characterized by: A small amount of inorganic salt that is easily soluble in water is also mixed between the bentonite layer (23) and the storage cover (22).

6. The Beidou dual-channel groundwater monitoring and waterproof protection device according to claim 1, characterized in that: The shell (11) is hollow inside and is made of plastic.

7. A Beidou dual-channel groundwater monitoring waterproof method, based on the Beidou dual-channel groundwater monitoring waterproof protection device according to claim 5, characterized in that: The steps include: S1. Preliminary waterproofing: When there is a lot of moisture in the environment or the water level reaches the connection between the shell cover (12) and the shell (11), the moisture is first blocked by the two sealing rings (7). At the same time, when the temperature difference in the environment changes greatly, the hollow shell (11) makes the temperature change inside the shell (11) smaller, thereby preventing condensation water from being generated inside the shell (11); S2, water leakage detection: when water enters the housing (11) due to aging of the sealing ring, the water gradually dissolves the inorganic salt, and the dissolved solution reacts with the storage cover (22), causing the storage cover (22) to undergo an oxidation reaction and lose electrons, and a reduction reaction to occur at the housing cover (12), thereby causing the current sensor (4) to detect the current, and at the same time the current sensor (4) sends a signal to the PCB board (13), and the PCB board (13) sends a signal to the staff, so that the staff receives the water leakage in the housing (11); S3, deep waterproofing: after a large amount of water enters the housing (11), the water passes through the storage cover (22) and reacts with the bentonite layer (23), causing the bentonite layer (23) to swell and absorb the water entering the housing (11). At the same time, the swollen bentonite layer (23) blocks the water leakage between the housing (11) and the housing cover (12); S4. Detection and judgment: When the gap of the leak is large and the leak is excessive, the bentonite layer (23) further expands, causing the support ring (21) to move away from the end cover (121), and the disc spring (5) is squeezed by the support ring (21). When the pressure on the disc spring (5) is too large, the disc spring (5) crushes the rigid disc sheet (61). At this time, the inner ring of the disc spring (5) moves downward, and the trigger rod (62) instantly hits the piezoelectric ceramic (63), causing the current sensor to sense the instantaneous current of the piezoelectric ceramic (63). That is, when the staff receives the instantaneous current signal, the leakage in the housing (11) is relatively serious.

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