A layered soil water collection device with filtration

Abstract

The application relates to a layered soil water collecting device with a filtering device and relates to the technical field of soil water collecting, which comprises a drill bit, a drill rod and a driving assembly, the drill rod is vertically arranged, the bottom end is rotationally connected with the drill bit, a water inlet channel is formed in the side wall of the drill rod, a first filter is arranged in the water inlet channel, the first filter is fixedly connected with the drill rod, a baffle is slidably connected to the drill rod, the baffle is isolated from the water inlet channel, a containing groove is formed in the drill rod and is communicated with the water inlet channel, a water outlet pipe is arranged on the drill rod, one end of the water outlet pipe is communicated with the containing groove, and the other end is communicated with the outside world, a valve is installed on the water outlet pipe, the top end of the drill rod is fixedly connected with a controller, the driving assembly comprises a motor, a first driving part and a second driving part, the motor is vertically embedded in the drill rod and is electrically connected with the controller, the first driving part is located at the bottom of the drill rod, and the second driving part is located at the water inlet channel. The application has the effect of improving the soil water sampling precision.

Description

Technical Field

[0001] This application relates to the technical field of soil water collection, and in particular to a stratified soil water collection device with a filtration device. Background Technology

[0002] A layered soil water collection device with a filtration system is a device used to obtain soil water at different depths. It is mainly used in fields such as groundwater pollution tracking, dynamic analysis of soil moisture, and early warning of geological disasters.

[0003] Existing stratified soil water sampling devices typically involve first drilling a hole with a drilling rig, then removing the drill rod, and finally inserting a sampling tube with a filter structure into the hole to collect soil water.

[0004] Currently, existing stratified soil water sampling devices require drilling before installation of the sampling device. Furthermore, the borehole walls are prone to seepage interference due to loose soil backfilling, which affects the sampling accuracy of soil water. Summary of the Invention

[0005] To improve the sampling accuracy of soil water, this application provides a stratified soil water sampling device with a filtration device.

[0006] This application provides a stratified soil water collection device with a filtration system, which adopts the following technical solution: A stratified soil water collection device with a filtration system includes a drill bit, a drill rod, and a drive assembly. The drill bit and the drill rod are vertically arranged, with their bottom ends rotatably connected to the drill bit. A water inlet channel is formed on the side wall of the drill rod, and a first filter element is disposed within the water inlet channel. The first filter element is fixedly connected to the drill rod. A baffle is slidably connected to the drill rod, located on the side of the first filter element near the side wall of the drill rod, and the baffle isolates the water inlet channel. A receiving groove is formed inside the drill rod, and the receiving groove communicates with the water inlet channel. A water outlet pipe is provided, one end of which is connected to the receiving tank and the other end is connected to the outside. A valve is installed on the water outlet pipe. A controller is fixedly connected to the top of the drill rod. The drive assembly includes a motor, a first drive unit, and a second drive unit. The motor is vertically embedded in the drill rod and is electrically connected to the controller. The first drive unit is located at the bottom of the drill rod and is used to drive the drill bit to rotate when the motor rotates forward. The second drive unit is located at the water inlet channel and is used to drive the baffle to open the water inlet channel when the motor rotates in reverse.

[0007] By adopting the above technical solution, during the soil water collection process, the operator controls the motor to rotate forward via the controller. When the motor rotates forward, it drives the first drive unit to work, which in turn drives the drill bit to rotate and drill vertically. At this time, the baffle closes the water inlet channel to prevent soil from entering the receiving tank. After drilling to the target depth, the operator controls the motor to rotate in reverse via the controller. The reverse rotation of the motor drives the second drive unit to operate, which in turn drives the baffle to slide and open the water inlet channel. The soil water enters the receiving tank after being filtered by the first filter element. When the drill bit moves to the ground, the operator controls the valve to open, and the soil water flows out to the outside through the outlet pipe, completing the soil water collection. By switching between forward and reverse rotation of the motor, a seamless connection between drilling and sampling is achieved, effectively avoiding seepage interference caused by borehole wall collapse and improving the soil water sampling accuracy.

[0008] Optionally, the first drive unit includes a first pawl, a first spring, an inner ratchet, a first gear, and a second gear; a rotating shaft is coaxially fixed on the output shaft of the motor, and a rotating groove is formed on the rotating shaft; the first pawl is located in the rotating groove and is rotatably connected to the rotating shaft; the first spring is located in the rotating groove, and its two ends are respectively fixedly connected to the rotating shaft and the first pawl; a clearance groove is formed at the bottom end of the drill rod; the inner ratchet is sleeved on the rotating shaft and located in the clearance groove; the inner ratchet intermittently engages with the first pawl; the first gear is sleeved on the inner ratchet and is fixedly connected to the inner ratchet; the second gear is fixedly connected to the drill bit and meshes with the first gear; the second gear is located in the clearance groove.

[0009] By adopting the above technical solution, when the operator controls the motor to rotate forward via the controller, the motor drives the rotating shaft to rotate. The first pawl in the rotating groove abuts against the inner ratchet, and the inner ratchet rotates synchronously with the rotating shaft. The inner ratchet drives the first gear to rotate, and the first gear drives the second gear to rotate. The second gear drives the drill bit to rotate and drill. When the operator controls the motor to rotate in reverse via the controller, the first pawl is compressed by the reverse tooth surface resistance of the inner ratchet, and the first pawl disengages from the inner ratchet, so that the drill bit stops working when the motor rotates in reverse.

[0010] Optionally, the second drive unit includes a support plate, an outer ratchet, a second pawl, a connecting plate, and a second spring; the support plate is sleeved on the rotating shaft and slidably connected to the rotating shaft, the bottom end of the support plate is fixedly connected to the top end of the baffle, and a limit ring is fixedly provided at the top end of the support plate; the rotating shaft is provided with a reciprocating thread, the outer ratchet is threadedly connected to the rotating shaft, a limit groove is formed at the bottom end of the outer ratchet, and the limit ring is located in the limit groove; the second pawl is rotatably mounted on the support plate and intermittently engages with the outer ratchet; the connecting plate is fixedly mounted at the top end of the support plate; the second spring is located on the support plate, and its two ends are fixedly connected to the connecting plate and the second pawl, respectively.

[0011] By adopting the above technical solution, when the operator controls the motor to rotate forward via the controller, the motor drives the rotating shaft to rotate, and the rotating shaft drives the outer ratchet to rotate synchronously. The reverse tooth surface of the outer ratchet presses against the second pawl, and the second pawl stretches the second spring. The outer ratchet and the second pawl disengage, and the outer ratchet rotates freely. When drilling reaches the designated position, the operator controls the motor to rotate in reverse via the controller. The outer ratchet and the second pawl abut against each other, and the second pawl limits the outer ratchet, causing the outer ratchet to drive the bearing plate to slide vertically along the rotating shaft. The bearing plate drives the baffle to slide downward. After the water inlet channel connects to the receiving tank, the operator controls the motor to stop working via the controller. Soil water enters the receiving tank after being filtered by the first filter element, completing the collection of soil water. This ensures seamless connection between drilling and sampling, and the soil water is less susceptible to seepage interference caused by borehole wall collapse, thus improving the sampling accuracy of soil water.

[0012] Optionally, a scraper is fixedly provided on the side of the baffle away from the receiving groove, and the scraper is provided with a guide slope.

[0013] By adopting the above technical solution, when the baffle slides downward, the scraper slides downward, and the scraper removes the soil attached to the water inlet channel during the drilling process, making the first filter element less prone to clogging, thereby improving the sampling accuracy of soil water.

[0014] Optionally, a second filter plate is fixedly connected to the top of the scraper, and a placement groove is opened inside the drill rod. The placement groove is filled with water, and the second filter plate is located in the placement groove.

[0015] By adopting the above technical solution, when the baffle opens the water inlet channel, the second filter plate moves out of the placement tank and performs preliminary filtration of soil water, making it difficult for soil to flow into the receiving tank. When the baffle blocks the water inlet channel, the second filter plate moves into the placement tank, and the water in the placement tank soaks and cleans the second filter plate, making it less likely to become clogged during long-term use.

[0016] Optionally, a liquid level sensor is installed in the container tank to detect the liquid level height in the container tank and is electrically connected to the controller.

[0017] By adopting the above technical solution, when the liquid level sensor detects that the soil water in the container tank has reached the specified height, the liquid level sensor controls the motor to continue to reverse through the controller. The rotating shaft drives the outer ratchet to rotate, and the outer ratchet engages with the second pawl. The outer ratchet drives the baffle to slide upward, so that the baffle isolates the water inlet channel. After the baffle isolates the water inlet channel, the controller controls the motor to rotate forward, and the rotating shaft drives the drill bit to rotate, thereby driving the equipment to drill out of the ground, making it easy for the operator to collect the soil water in the container tank.

[0018] Optionally, an isolation component is provided inside the drill rod, which is used to isolate the receiving tank; the isolation component includes an isolation telescopic plate, which is embedded in the drill rod, and its movable end isolates the receiving tank into a collection chamber and a sludge chamber, and the isolation telescopic plate is electrically connected to the controller; one end of the water outlet pipe is located in the collection chamber of the receiving tank.

[0019] By adopting the above technical solution, during the process of the equipment drilling out of the ground, the soil water in the receiving tank naturally settles, and the sludge and impurities in the soil water settle to the bottom of the receiving tank. After the equipment drills out of the ground, the operator controls the movable end of the isolation telescopic plate to extend through the controller. The movable end of the isolation telescopic plate isolates the receiving tank from the top and bottom, and the settled soil water is discharged from the equipment through the water outlet pipe, thereby improving the sampling accuracy of soil water.

[0020] Optionally, the isolation assembly further includes an airbag and a sewage discharge telescopic plate; the airbag is embedded in the side of the receiving groove away from the isolation telescopic plate, the airbag is hollow and filled with liquid; a sewage discharge port is provided on the drill rod, and the sewage discharge port communicates with the sludge chamber of the receiving groove; the sewage discharge telescopic plate is vertically arranged in the drill rod, and the movable end isolates the sewage discharge port; a third spring is vertically arranged in the plateless cavity of the sewage discharge telescopic plate, and the two ends of the third spring are fixedly connected to the movable end and the fixed end of the sewage discharge telescopic plate, respectively; the plated cavity of the sewage discharge telescopic plate is connected to the airbag through a pipe.

[0021] By adopting the above technical solution, after the movable end of the isolation telescopic plate isolates the upper and lower parts of the receiving tank, the movable end of the isolation telescopic plate continues to extend. The movable end of the isolation telescopic plate squeezes the air bladder, and the liquid in the air bladder flows through the pipe into the cavity of the sewage discharge telescopic plate. The movable end of the sewage discharge telescopic plate opens the sewage discharge port, the third spring is in a compressed state, and the sludge and impurities in the sludge cavity of the receiving tank are discharged through the sewage discharge port, making the equipment easy to reuse.

[0022] In summary, this application includes at least one of the following beneficial technical effects: By setting up a first filter element and a second filter plate, soil is less likely to enter the receiving tank, thus improving the sampling accuracy of soil water. By setting up a first drive unit and a second drive unit, the drilling and sampling are seamlessly connected, effectively avoiding seepage interference caused by borehole wall collapse and improving the sampling accuracy of soil water. By setting up isolation components, the sludge that naturally settles in the soil water is separated from the settled soil water, thereby improving the sampling accuracy of soil water. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 This is a cross-sectional view of the first gear in this embodiment of the application; Figure 4 yes Figure 2 A magnified view of a section at point A in the middle; Figure 5 yes Figure 3 A magnified view of a section at point B in the middle; Figure 6 This is a partially enlarged view of the second pawl in a bottom-view orientation according to an embodiment of this application; Figure 7 yes Figure 2 A magnified view of a section at point C; Figure 8 This is a cross-sectional view of the insulating telescopic plate according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Drill bit; 2. Drill rod; 21. Water inlet channel; 211. First filter element; 212. Baffle; 213. Scraper; 214. Second filter plate; 22. Placement tank; 23. Receiving tank; 231. Liquid level sensor; 24. Water outlet pipe; 241. Valve; 25. Sewage outlet; 26. Clearance tank; 27. Controller; 3. Drive assembly; 31. Motor; 311. Rotating shaft; 3111. Rotating groove; 32. First drive Part; 321, First pawl; 322, First spring; 323, Inner ratchet; 324, First gear; 325, Second gear; 33, Second drive unit; 331, Bearing plate; 3311, Limiting ring; 332, Outer ratchet; 3321, Limiting groove; 333, Second pawl; 334, Connecting plate; 335, Second spring; 4, Isolation assembly; 41, Isolation telescopic plate; 42, Airbag; 43, Sewage discharge telescopic plate; 431, Third spring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0026] This application discloses a stratified soil water collection device with a filtration apparatus. (Refer to...) Figure 1 and Figure 2 A stratified soil water collection device with a filtration system includes a drill bit 1, a drill rod 2, a drive assembly 3, and an isolation assembly 4. The drill bit 1 is vertically positioned, and the bottom end of the drill rod 2 is rotatably connected to the drill bit 1. A water inlet channel 21 is formed on the side wall of the drill rod 2, and a baffle 212 is provided on the drill rod 2 to isolate the water inlet channel 21. A receiving groove 23 is formed inside the drill rod 2, communicating with the water inlet channel 21. The drive assembly 3 is located on the drill rod 2 and is used to drive the baffle 212 to open the water inlet channel 21. The isolation assembly 4 is located on the drill rod 2 and is used to isolate the receiving groove 23 vertically.

[0027] During soil water collection, drill bit 1 rotates and drills vertically. At this time, baffle 212 closes the water inlet channel 21 to prevent soil from entering the receiving tank 23. After drilling to the target depth, drive component 3 drives baffle 212 to open the water inlet channel 21, allowing soil water to enter the receiving tank 23. As drill bit 1 emerges from the ground, the soil water in the receiving tank 23 naturally settles, and sludge and impurities in the soil water settle to the bottom of the receiving tank 23. When drill bit 1 moves to the ground, isolation component 4 isolates the receiving tank 23 vertically, thereby improving the accuracy of soil water collection.

[0028] Reference Figure 1 and Figure 2The drill rod 2 is vertically arranged and is circular in shape. The water inlet channel 21 has a rectangular cross-section and contains a first filter element 211, which is fixedly connected to the drill rod 2. The first filter element 211 can be a polycarbonate or polyethersulfone filter membrane. The baffle 212 is rectangular and is slidably connected to the drill rod 2 in the vertical direction. The baffle 212 is located on the side of the first filter element 211 near the side wall of the drill rod 2. The scraper 213 is horizontally arranged and is rectangular in shape. The scraper 213 has a guide slope that slopes downwards from the side away from the baffle 212 to the side near the baffle 212. A second filter plate 214 is fixedly connected to the top of the scraper 213. The second filter plate 214 is vertically arranged and is rectangular in shape. A rectangular placement groove 22 is provided on the drill rod 2, located above the water inlet channel 21. The placement groove 22 is filled with water, and the second filter plate 214 is located inside the placement groove 22. A rectangular receiving groove 23 is provided, and a liquid level sensor 231 is fixedly installed on the side wall of the receiving groove 23. The liquid level sensor 231 is used to detect the liquid level in the receiving groove 23. A circular water outlet pipe 24 is provided through the drill rod 2. One end of the water outlet pipe 24 is connected to the receiving groove 23, and the other end is connected to the outside. A valve 241, which can be a solenoid valve, is installed on the water outlet pipe 24. A drain outlet 25 is provided on the drill rod 2, connected to the bottom of the receiving groove 23. The drain outlet 25 has a rectangular cross-section. An obstacle groove 26, which is circular, is provided at the bottom of the drill rod 2. A controller 27 is fixedly installed at the top of the drill rod 2, and the controller 27 is electrically connected to the liquid level sensor 231.

[0029] Reference Figure 2 The drive assembly 3 includes a motor 31, a first drive unit 32, and a second drive unit 33. The motor 31 is vertically embedded in the drill rod 2 and is electrically connected to the controller 27. The first drive unit 32 is located at the bottom of the drill rod 2 and is used to drive the drill bit 1 to rotate when the motor 31 rotates forward. The second drive unit 33 is located at the water inlet and is used to drive the baffle 212 to open the water inlet channel 21 when the motor 31 rotates in reverse. A rotating shaft 311 is coaxially fixed on the output shaft of the motor 31. The rotating shaft 311 is vertically arranged and is in the shape of a circular rod, and has a reciprocating thread.

[0030] Reference Figure 3 , Figure 4 and Figure 5The rotating shaft 311 has a rotating groove 3111 at its bottom. The first drive unit 32 includes a first pawl 321, a first spring 322, an inner ratchet 323, a first gear 324, and a second gear 325. The first pawl 321 is horizontally disposed in the rotating groove 3111 and is rotatably connected to the rotating shaft 311. The first spring 322 is horizontally disposed in the rotating groove 3111, and its two ends are fixedly connected to the rotating shaft 311 and the first pawl 321, respectively. The inner ratchet 323 is sleeved on the rotating shaft 311 and is located in the clearance groove 26, and the inner ratchet 323 and the first pawl 321 are intermittently engaged. The first gear 324 is horizontally disposed in the clearance groove 26 and is fixedly sleeved on the inner ratchet 323. The second gear 325 is horizontally disposed in the clearance groove 26 and meshes with the first gear 324, and the second gear 325 is fixedly connected to the drill bit 1.

[0031] Reference Figure 4 and Figure 6 The second drive unit 33 includes a support plate 331, an outer ratchet 332, a second pawl 333, a connecting plate 334, and a second spring 335. The support plate 331 is horizontally sleeved on the rotating shaft 311 and is rectangular in shape. The support plate 331 and the rotating shaft 311 are slidably connected in the vertical direction. The bottom end of the support plate 331 is fixedly connected to the top end of the baffle 212. A limit ring 3311 is horizontally provided at the top end of the support plate 331. The limit ring 3311 has a T-shaped cross-section and is fixedly connected to the support plate 331. The outer ratchet 332 is horizontally positioned and threadedly connected to the rotating shaft 311. A limiting groove 3321 with a T-shaped cross-section is provided at the bottom of the outer ratchet 332. A limiting ring 3311 is fitted into the limiting groove 3321 and is located within it. The limiting ring 3311 and the outer ratchet 332 slide circumferentially along the axis of the rotating shaft 311. The second pawl 333 is horizontally positioned and rotatably connected to the support plate 331. The second pawl 333 and the outer ratchet 332 are intermittently engaged. A connecting plate 334 is vertically positioned on the support plate 331 and is rectangular in shape. The connecting plate 334 is fixedly connected to the support plate 331. A second spring 335 is horizontally positioned, with both ends fixedly connected to the connecting plate 334 and the second pawl 333, respectively.

[0032] When the operator controls the motor 31 to rotate forward via the controller 27, the motor 31 drives the rotating shaft 311 to rotate. The first pawl 321 in the rotating groove 3111 abuts against the inner ratchet 323. The inner ratchet 323 rotates synchronously with the rotating shaft 311. Figure 5 From a top-down perspective, rotating clockwise, the inner ratchet 323 drives the first gear 324 to rotate, the first gear 324 drives the second gear 325 to rotate, and the second gear 325 drives the drill bit 1 to rotate and drill. Simultaneously, the rotating shaft 311 drives the outer ratchet 332 to rotate, and the outer ratchet 332... Figure 6When viewed from below, the second pawl 333 rotates counterclockwise, and the second spring 335 is stretched by the reverse tooth surface of the outer ratchet 332. The outer ratchet 332 disengages from the second pawl 333, and the outer ratchet 332 spins freely.

[0033] When the drill reaches the designated position, the operator controls the motor 31 to reverse via the controller 27, and the rotating shaft 311 drives the inner ratchet 323 to... Figure 5 From a top-down perspective, rotating counterclockwise, the first pawl 321 compresses the first spring 322 due to the resistance of the reverse tooth surface of the inner ratchet 323, causing the first pawl 321 to disengage from the inner ratchet 323, and the rotating shaft 311... Figure 6 From an upward perspective, rotating clockwise, the outer ratchet 332 abuts against the second pawl 333, which limits the outer ratchet 332, causing the outer ratchet 332 to drive the bearing plate 331 to slide vertically along the rotation axis 311. The bearing plate 331 drives the baffle 212 to slide downward, and the baffle 212 drives the scraper 213 to slide downward. The scraper 213 scrapes away the soil attached to the water inlet channel 21 during drilling. The second filter plate 214 is removed from the placement groove 22. The second filter plate 214 performs preliminary filtration of the soil water, and the first filter element 211 performs secondary filtration of the soil water, completing the collection of soil water. This ensures seamless connection between drilling and sampling, and the soil water is not easily disturbed by seepage caused by the collapse of the borehole wall.

[0034] Reference Figure 7 and Figure 8 The isolation component 4 includes an isolation telescopic plate 41, an airbag 42, and a sewage discharge telescopic plate 43. The isolation telescopic plate 41 is horizontally embedded in the drill rod 2, and its movable end isolates the receiving groove 23 into a collection chamber and a sludge chamber. The isolation telescopic plate 41 is electrically connected to the controller 27; one end of the water outlet pipe 24 is located in the collection chamber of the receiving groove 23. The airbag 42 is horizontally embedded on the side of the receiving groove 23 away from the isolation telescopic plate 41. The airbag 42 is hollow and filled with liquid. The sewage discharge telescopic plate 43 is vertically installed in the drill rod 2, and its movable end isolates the sewage discharge port 25. A third spring 431 is vertically installed in the plateless cavity of the sewage discharge telescopic plate 43. The two ends of the third spring 431 are fixedly connected to the movable end and the fixed end of the sewage discharge telescopic plate 43, respectively; the plated cavity of the sewage discharge telescopic plate 43 is connected to the airbag 42 through a pipe.

[0035] When the liquid level sensor 231 detects that the liquid level in the receiving tank 23 has reached the specified height, the controller 27 controls the motor 31 to reverse. The reciprocating thread of the rotating shaft 311 drives the outer ratchet 332 to slide upward. The outer ratchet 332 drives the baffle 212 to isolate the water inlet channel 21. After the baffle 212 isolates the water inlet channel 21, the controller 27 controls the motor 31 to rotate forward. The rotating shaft 311 drives the inner ratchet 323 to rotate. The inner ratchet 323 drives the first gear 324 to rotate. The first gear 324 drives the second gear 325 to rotate. The second gear 325 drives the drill bit 1 to rotate, making it easier for the equipment to drill out of the ground. During the drilling process, the soil water in the receiving tank 23 naturally settles, and the sludge and impurities in the soil water settle to the bottom of the receiving tank 23. Once the equipment has drilled to the ground, the operator controls the extension of the movable end of the isolation telescopic plate 41 via the controller 27. The movable end of the isolation telescopic plate 41 isolates the upper and lower parts of the receiving tank 23. At this time, the movable end of the isolation telescopic plate 41 continues to extend, squeezing the air bladder 42. The liquid inside the air bladder 42 flows through the pipe into the cavity of the sewage discharge telescopic plate 43. The movable end of the sewage discharge telescopic plate 43 opens the sewage outlet 25, and the third spring 431 is in a compressed state. The sludge and impurities in the sludge cavity of the receiving tank 23 are discharged through the sewage outlet 25. The controller 27 controls the valve 241 to open, and the settled soil water is discharged through the water outlet pipe 24, thus completing the soil water collection work.

[0036] The implementation principle of a stratified soil water collection device with a filtration device in this application embodiment is as follows: During soil water collection, the operator controls the motor 31 to rotate forward via the controller 27. The motor 31 drives the rotating shaft 311 to rotate. The first pawl 321 in the rotating groove 3111 abuts against the inner ratchet 323. The inner ratchet 323 rotates synchronously with the rotating shaft 311. The inner ratchet 323 drives the first gear 324 to rotate, thereby driving the drill bit 1 to rotate and drill. The reverse tooth surface of the outer ratchet 332 presses against the second pawl 333. The second pawl 333 stretches the second spring 335, and the outer ratchet 332 and the second pawl 333 disengage.

[0037] When drilling reaches the designated position, the operator controls the motor 31 to reverse via the controller 27. The first pawl 321 is compressed by the reverse tooth surface resistance of the inner ratchet 323, causing the first pawl 321 to disengage from the inner ratchet 323. The outer ratchet 332 abuts against the second pawl 333, causing the outer ratchet 332 to drive the support plate 331 to slide vertically along the rotation axis 311. The support plate 331 drives the baffle 212 to slide downward. The scraper 213 scrapes away the soil attached to the water inlet channel 21 during drilling. The second filter plate 214 is removed from the placement groove 22. The second filter plate 214 performs preliminary filtration of the soil water, and the first filter element 211 performs secondary filtration of the soil water.

[0038] When the liquid level sensor 231 detects that the liquid level in the container tank 23 has reached the specified height, the controller 27 controls the motor 31 to reverse, and the reciprocating thread of the rotating shaft 311 drives the external ratchet 332 to slide upward. The external ratchet 332 drives the baffle 212 to isolate the water inlet channel 21.

[0039] When the baffle 212 isolates the water inlet channel 21, the controller 27 controls the motor 31 to rotate forward, thereby driving the drill bit 1 to rotate, making it easier for the equipment to drill out of the ground. During the drilling process, the soil water in the receiving tank 23 naturally settles, and the sludge and impurities in the soil water settle to the bottom of the receiving tank 23. After the equipment drills out of the ground, the operator controls the movable end of the isolation telescopic plate 41 to extend through the controller 27. The movable end of the isolation telescopic plate 41 isolates the receiving tank 23 from the top and bottom. At this time, the movable end of the isolation telescopic plate 41 continues to extend, squeezing the air bladder 42. The movable end of the sewage discharge telescopic plate 43 contracts, thereby opening the sewage discharge port 25. The sludge and impurities in the sludge chamber of the receiving tank 23 are discharged through the sewage discharge port 25. The operator controls the valve 241 to open through the controller 27, and the settled soil water is discharged through the water outlet pipe 24, thus completing the soil water collection work.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stratified soil water collection device with a filtration unit, characterized in that: The system includes a drill bit (1), a drill rod (2), and a drive assembly (3). The drill bit (1) is vertically arranged, and the drill rod (2) is vertically arranged with its bottom end rotatably connected to the drill bit (1). A water inlet channel (21) is provided on the side wall of the drill rod (2). A first filter element (211) is provided in the water inlet channel (21) and is fixedly connected to the drill rod (2). A baffle (212) is slidably connected to the drill rod (2). The baffle (212) is located on the side of the first filter element (211) near the side wall of the drill rod (2) and isolates the water inlet channel (21). A receiving groove (23) is provided in the drill rod (2) and communicates with the water inlet channel (21). A water outlet pipe (24) passes through the drill rod (2). One end of the water outlet pipe (24) is connected to the receiving tank (23), and the other end is connected to the outside. A valve (241) is installed on the water outlet pipe (24). A controller (27) is fixedly connected to the top of the drill rod (2). The drive assembly (3) includes a motor (31), a first drive unit (32), and a second drive unit (33). The motor (31) is vertically embedded in the drill rod (2), and the motor (31) is electrically connected to the controller (27). The first drive unit (32) is located at the bottom of the drill rod (2) and is used to drive the drill bit (1) to rotate when the motor (31) rotates forward. The second drive unit (33) is located at the water inlet channel (21) and is used to drive the baffle (212) to open the water inlet channel (21) when the motor (31) rotates in reverse.

2. The stratified soil water collection device with a filtration device according to claim 1, characterized in that: The first drive unit (32) includes a first pawl (321), a first spring (322), an inner ratchet (323), a first gear (324), and a second gear (325); a rotating shaft (311) is coaxially fixed on the output shaft of the motor (31), and a rotating groove (3111) is provided on the rotating shaft (3111). The first pawl (321) is located in the rotating groove (3111) and is rotatably connected to the rotating shaft (311); the first spring (322) is located in the rotating groove (3111), and its two ends are respectively connected to the rotating shaft (311) and the first pawl (321). The pawl (321) is fixedly connected; the bottom end of the drill rod (2) is provided with a clearance groove (26), the inner ratchet (323) is sleeved on the rotating shaft (311) and located in the clearance groove (26), the inner ratchet (323) and the first pawl (321) are intermittently engaged; the first gear (324) is sleeved on the inner ratchet (323) and fixedly connected to the inner ratchet (323); the second gear (325) is fixedly connected to the drill bit (1) and meshes with the first gear (324), the second gear (325) is located in the clearance groove (26).

3. A stratified soil water collection device with a filtration device according to claim 2, characterized in that: The second drive unit (33) includes a support plate (331), an outer ratchet (332), a second pawl (333), a connecting plate (334), and a second spring (335); the support plate (331) is sleeved on the rotating shaft (311) and slidably connected to the rotating shaft (311); the bottom end of the support plate (331) is fixedly connected to the top end of the baffle (212); a limit ring (3311) is fixedly provided at the top end of the support plate (331); the rotating shaft (311) is provided with a reciprocating thread; the outer ratchet (332) is connected to the rotating shaft. (311) Threaded connection, the bottom end of the external ratchet (332) is provided with a limiting groove (3321), and the limiting ring (3311) is located in the limiting groove (3321); the second pawl (333) is rotatably disposed on the support plate (331) and intermittently cooperates with the external ratchet (332); the connecting plate (334) is fixedly disposed on the top end of the support plate (331); the second spring (335) is located on the support plate (331), and its two ends are fixedly connected to the connecting plate (334) and the second pawl (333) respectively.

4. The stratified soil water collection device with a filtration device according to claim 1, characterized in that: A scraper (213) is fixedly provided on the side of the baffle (212) away from the receiving groove (23), and the scraper (213) is provided with a guide slope.

5. A stratified soil water collection device with a filtration device according to claim 4, characterized in that: The top of the scraper (213) is fixedly connected to a second filter plate (214). A placement groove (22) is opened in the drill rod (2). The placement groove (22) is filled with water. The second filter plate (214) is located in the placement groove (22).

6. A stratified soil water collection device with a filtration device according to claim 1, characterized in that: A liquid level sensor (231) is installed in the container (23). The liquid level sensor (231) is used to detect the liquid level height in the container (23) and is electrically connected to the controller (27).

7. A stratified soil water collection device with a filtration device according to claim 1, characterized in that: An isolation component (4) is provided inside the drill rod (2), which is used to isolate the receiving tank (23). The isolation component (4) includes an isolation telescopic plate (41), which is embedded in the drill rod (2) and its movable end isolates the receiving tank (23) into a collection chamber and a sludge chamber. The isolation telescopic plate (41) is electrically connected to the controller (27). One end of the water outlet pipe (24) is located in the collection chamber of the receiving tank (23).

8. A stratified soil water collection device with a filtration device according to claim 7, characterized in that: The isolation component (4) further includes an airbag (42) and a sewage discharge telescopic plate (43); the airbag (42) is embedded in the side of the receiving groove (23) away from the isolation telescopic plate (41), the airbag (42) is hollow inside and filled with liquid; a sewage discharge port (25) is provided on the drill rod (2), the sewage discharge port (25) is connected to the sludge chamber of the receiving groove (23); the sewage discharge telescopic plate (43) is vertically arranged in the drill rod (2), and the movable end isolates the sewage discharge port (25); a third spring (431) is vertically arranged in the plateless cavity of the sewage discharge telescopic plate (43), and the two ends of the third spring (431) are fixedly connected to the movable end of the sewage discharge telescopic plate (43) and the fixed end of the sewage discharge telescopic plate (43) respectively; the plate cavity of the sewage discharge telescopic plate (43) is connected to the airbag (42) through a pipe.

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