Underground water pollution detection device

Abstract

The invention relates to the technical field of pollution detection devices, and discloses an underground water pollution detection device which comprises a mounting base, a metal support is fixed to the top of the mounting base, and a lifting fine adjustment device is fixed to the outer side of the metal support; the device is provided with the lifting fine adjustment device, after the assembly support drives the lifting drilling device to move to a proper height, a brake can be started to complete locking of a ball screw, so that a self-locking ball nut and an assembly mounting block are kept stable in structure on the outer side of the ball screw, and the lifting drilling device is started to conduct lifting drilling on the water taking position of underground water; after drilling, a water pumping pipe can conveniently extend into the hole, normal water taking of underground water can be carried out, and then underground water detection can be carried out; the device is provided with a water pumping container protection device, the operation is simple and convenient when the rotary protection cover is opened, the rotary protection cover can be conveniently closed and locked, the use process is simple and convenient, and the situation that a carbon steel nut is lost is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pollution detection devices, and in particular to a groundwater pollution detection device. Background Art

[0002] Groundwater refers to water stored in the rock voids below the ground. In a narrow sense, it refers to water in saturated aquifers below the groundwater surface. The formation of groundwater must meet three conditions: recharge source, water storage space and geological conditions. The recharge source is mainly atmospheric precipitation and surface water infiltration, and the water storage space is the pores, cracks and caves in rocks and soil. Geological conditions include crustal movement and rock property changes. Groundwater can be divided into vadose zone water, groundwater and confined water according to burial conditions; it can be divided into porous water, fissure water and karst water according to the type of water-bearing medium. Rock and soil voids are the storage space and transmission channels for groundwater, including pores in unconsolidated loose rock formations, cracks in consolidated rock formations, and cracks and caves in soluble rock formations. Groundwater is an important component of water resources, with the characteristics of stable water volume and good water quality. It is one of the important water sources for agricultural irrigation, industry, mining and cities.

[0003] A Chinese patent discloses a groundwater pollution detection device (authorization announcement number CN 220188509 U). The patented technology includes a support platform and a bracket, and the bracket is installed on the top of the support platform; it also includes a detection mechanism, a driving device, a water cylinder, a hose and a water suction head. The left and right ends of the water cylinder are rotatably installed on the inner wall of the bracket. A detection mechanism is arranged on the top of the support platform. The detection mechanism is used to pump water from the water cylinder, and the detection mechanism is used to detect the extracted groundwater. The rear end of the hose is connected and arranged on the outer wall of the water cylinder, the middle part of the hose is coiled on the outer wall of the water cylinder, the water suction head is connected and arranged at the front end of the hose, and the driving device is installed on the outer wall of the bracket. The driving device is used to drive the rotation of the water cylinder, which can improve the convenience of hose storage, reduce the situation of hose breakage and damage, and improve the convenience of use.

[0004] However, when the above-mentioned groundwater pollution detection device is used, when it is used to draw groundwater, sometimes the pipe is difficult to insert and pump water, and the water intake part needs to be manually expanded to facilitate the insertion of the water intake hose, but the operation is inconvenient, which affects the detection of groundwater pollution. Therefore, those skilled in the art provide a groundwater pollution detection device to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a groundwater pollution detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A groundwater pollution detection device comprises a mounting base, a metal bracket is fixed on the top of the mounting base, a lifting fine-adjustment device is fixed on the outer side of the metal bracket, a lifting and drilling device is connected to the outer side of the lifting and drilling device, a drill bit is installed on the bottom of the lifting and drilling device, a total phosphorus water quality meter is fixed on the top of the mounting base, a water pump housing is installed on the top of the mounting base, a water pump container protection device is arranged on the top of the water pump housing, a water pump is arranged inside the water pump housing, and a water pump pipe is connected to the outer side of the water pump, a detection protection cover is rotatably connected to the top of the total phosphorus water quality meter through a rotating shaft, an operation display screen is arranged on the outer side of the total phosphorus water quality meter, a metal handle is fixed on the top of the detection protection cover, a mounting fixing pad is fixed on the outer side of the detection protection cover, and a counterweight fixing block is fixed on the top of the mounting fixing pad;

[0008] The lifting and fine-tuning device includes a fixed bracket, a servo motor is fixed on the top of the fixed bracket, a ball screw is fixed to the outside of the output shaft of the servo motor, a fixed cast iron plate is fixed to the outside of the metal bracket, a guide rail is fixed to the outside of the fixed cast iron plate, a guide movable sleeve is slidably sleeved on the outside of the guide rail, a lifting mounting plate is fixed to the outside of the guide movable sleeve, a self-locking ball nut is threadedly connected to the outside of the ball screw, an assembly mounting block is fixed to the outside of the self-locking ball nut, an assembly bracket is fixed to the outside of the assembly mounting block, and a brake is fixed to the outside of the metal bracket.

[0009] As a further solution of the present invention: a groundwater container is fixed inside the water pump housing, and the groundwater container is communicated with the water pump housing, and a water intake knob is threadedly connected to the top of the groundwater container.

[0010] As a further solution of the present invention: a digestion hole is provided inside the total phosphorus water quality tester, and a digestion tube is movably inserted in the digestion hole.

[0011] As a further solution of the present invention: one end of the ball screw is mounted in cooperation inside the brake, the lifting and drilling device is fixed to the outside of the assembly bracket, the lifting and drilling device and the lifting and mounting plate are fixedly connected, and the fixed bracket and the metal bracket are fixedly connected.

[0012] As a further solution of the present invention: the fixed cast iron plate and the metal bracket are fixed by bolts, the fixed cast iron plate and the guide rail are fixed by bolts, a through hole is opened inside the mounting base, and the size of the through hole is adapted to the size of the lifting and drilling device.

[0013] As a further solution of the present invention: the water pumping container protection device includes a rotating protective cover, a cast iron mounting block is fixed on the top of the rotating protective cover, a cast iron handle is arranged on the top of the cast iron mounting block, an assembling cast iron block is fixed to the outside of the rotating protective cover, a first carbon steel plate is fixed to the side of the assembling cast iron block away from the rotating protective cover, a second carbon steel plate is fixed to the outside of the water pump housing, a carbon steel short semi-threaded rod is fixed to the side of the first carbon steel plate away from the assembling cast iron block, and a carbon steel long semi-threaded rod is fixed to the side of the second carbon steel plate away from the water pump housing.

[0014] As a further solution of the present invention: a shielding plate is fixed to one end of the carbon steel long semi-threaded rod away from the second carbon steel plate, the outer sides of the carbon steel long semi-threaded rod and the carbon steel short semi-threaded rod are threadedly connected with carbon steel nuts, and anti-slip grooves are arranged on the outer sides of the carbon steel nuts.

[0015] As a further solution of the present invention: the rotating protective cover and the water pump housing are rotatably connected via a rotating shaft, and the water pump housing is fixed on the top of the mounting base.

[0016] As a further solution of the present invention: an opening is provided on the top of the water pump housing, and the position of the opening is matched with the position of the groundwater container inside the water pump housing.

[0017] As a further solution of the present invention: the radius size of the carbon steel short semi-threaded rod is equal to the radius size of the carbon steel long semi-threaded rod, and the lower bottom surface of the first carbon steel plate is in contact with the upper top surface of the second carbon steel plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This device is equipped with a lifting fine-tuning device. When conducting groundwater pollution detection, the water pump pipe outside the pump housing can be inserted into the groundwater intake point, and then the pump in the pump housing can be started to pump water. The pumped water is stored in the groundwater container of the pump housing. The rotating protective cover can be opened to extract a part of the groundwater from the groundwater container and place it in the digestion tube as a sample. If it is difficult to extract groundwater, the installation base can be moved to the top of the corresponding water intake position, and the servo motor can be started to drive the ball screw to rotate. After the assembly bracket drives the lifting drilling device to move to a suitable height, the brake can be started to complete. The ball screw is locked, and the self-locking ball nut can be self-locked, so that the self-locking ball nut and the assembly mounting block can maintain a stable structure on the outside of the ball screw, and then the lifting drilling device is started to lift and drill holes at the groundwater intake point. After drilling, it is convenient to insert the pumping pipe. After the pumping pipe is inserted, the groundwater can be normally taken. When testing the groundwater, the principle is to use potassium persulfate to digest the sample under neutral conditions, and all the phosphorus contained is oxidized to orthophosphate. In an acidic medium, the orthophosphate reacts with ammonium molybdate to generate phosphomolybdic heteropoly acid in the presence of antimony salt, which is immediately reduced by ascorbic acid to generate a blue complex, thereby completing the detection of groundwater pollution;

[0020] 2. The device is provided with a water pumping container protection device. After the water pumping pipe outside the water pump housing is inserted into the groundwater intake point, the water pump in the water pump housing can be started to pump water, and the pumped water is stored in the groundwater container of the water pump housing. The operation is simple when opening the rotating protective cover, and the user can easily extract a part of groundwater from the groundwater container of the water pump housing as a test sample. When the rotating protective cover needs to be closed again after use, the cast iron handle can be turned to cover the top of the water pump housing, and the lower bottom surface of the first carbon steel plate is fitted with the upper surface of the second carbon steel plate. At this time, the lower bottom surface of the carbon steel short semi-threaded rod is fitted with the upper top surface of the carbon steel long semi-threaded rod, and the carbon steel nut can be rotated clockwise to make the carbon steel nut threadedly connected with the carbon steel short semi-threaded rod and the carbon steel long semi-threaded rod, so as to conveniently complete the closing and locking of the rotating protective cover. The use process is simple and the loss of the carbon steel nut can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of a groundwater pollution detection device;

[0022] Figure 2 This is a schematic diagram of the outer structure of a lifting and fine-tuning device in a groundwater pollution detection device;

[0023] Figure 3 It is a side view of a lifting and fine-tuning device in a groundwater pollution detection device;

[0024] Figure 4It is a front view of a lifting and fine-tuning device in a groundwater pollution detection device;

[0025] Figure 5 It is a three-dimensional diagram of a lifting and fine-tuning device in a groundwater pollution detection device;

[0026] Figure 6 It is a schematic diagram of the outer structure of a servo motor in a groundwater pollution detection device;

[0027] Figure 7 A groundwater pollution detection device Figure 5 A schematic diagram of the enlarged structure of region A;

[0028] Figure 8 It is a schematic diagram of the outer structure of a total phosphorus water quality tester in a groundwater pollution detection device;

[0029] Fig. 9 A stereoscopic diagram of a total phosphorus water quality measuring instrument in a groundwater pollution detection device;

[0030] Fig.10 It is a top view of a total phosphorus water quality tester in a groundwater pollution detection device;

[0031] Fig.11 It is a schematic diagram of the outer structure of a water pump housing in a groundwater pollution detection device;

[0032] Fig.12 It is a top view of a water pump housing in a groundwater pollution detection device;

[0033] Fig.13 It is a structural schematic diagram of a pumping container protection device in a groundwater pollution detection device;

[0034] Fig.14 A groundwater pollution detection device Fig.13 Schematic diagram of the enlarged structure of area A.

[0035] In the figure: 1. Mounting base; 2. Metal bracket; 3. Lifting fine-tuning device; 31. Fixed bracket; 32. Servo motor; 33. Ball screw; 34. Fixed cast iron plate; 35. Guide rail; 36. Guide movable sleeve; 37. Lifting mounting plate; 38. Self-locking ball nut; 39. Assembly mounting block; 310. Assembly bracket; 311. Brake; 4. Lifting drilling device; 5. Drill bit; 6. Total phosphorus water quality tester; 7. Pump housing ;8. Pumping container protection device;81. Rotating protection cover;82. Cast iron mounting block;83. Cast iron handle;84. Assembling cast iron block;85. First carbon steel plate;86. Second carbon steel plate;87. Carbon steel short semi-threaded rod;88. Carbon steel long semi-threaded rod;89. Shielding plate;810. Carbon steel nut;9. Pumping pipe;10. Detection protection cover;11. Operation display screen;12. Metal handle;13. Installation fixing pad;14. Counterweight fixing block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-14 In an embodiment of the present invention, a groundwater pollution detection device includes a mounting base 1, characterized in that a metal bracket 2 is fixed on the top of the mounting base 1, a lifting fine-tuning device 3 is fixed on the outside of the metal bracket 2, a lifting drilling device 4 is connected to the outside of the lifting fine-tuning device 3, a drill bit 5 is installed at the bottom of the lifting drilling device 4, a total phosphorus water quality meter 6 is fixed on the top of the mounting base 1, a digestion hole is arranged inside the total phosphorus water quality meter 6, and a digestion tube is movably inserted in the digestion hole, a water pump housing 7 is installed on the top of the mounting base 1, an opening is arranged on the top of the water pump housing 7, and the position of the opening is adapted to the position of the groundwater container inside the water pump housing 7, and the water pump housing 7 is provided with a water pump body 7. A water pumping container protection device 8 is provided on the top of the water pump housing 7, a groundwater container is fixed inside the water pump housing 7, and the groundwater container is communicated with the water pump housing 7, a water intake knob is threadedly connected to the top of the groundwater container, a water pump is provided inside the water pump housing 7, and a water pump pipe 9 is connected to the outside of the water pump, a detection protection cover 10 is rotatably connected to the top of the total phosphorus water quality meter 6 through a rotating shaft, an operation display screen 11 is provided on the outside of the total phosphorus water quality meter 6, a metal handle 12 is fixed on the top of the detection protection cover 10, a mounting fixing pad 13 is fixed on the outside of the detection protection cover 10, and a counterweight fixing block 14 is fixed on the top of the mounting fixing pad 13;

[0038] The lifting fine-tuning device 3 includes a fixed bracket 31, a servo motor 32 is fixed on the top of the fixed bracket 31, a ball screw 33 is fixed on the outer side of the output shaft of the servo motor 32, a fixed cast iron plate 34 is fixed on the outer side of the metal bracket 2, a guide rail 35 is fixed on the outer side of the fixed cast iron plate 34, a guide movable sleeve 36 is slidably sleeved on the outer side of the guide rail 35, the fixed cast iron plate 34 and the metal bracket 2 are fixed by bolts, the fixed cast iron plate 34 and the guide rail 35 are fixed by bolts, a through hole is opened inside the mounting base 1, and the size of the through hole is adapted to the size of the lifting drilling device 4, a lifting mounting plate 37 is fixed on the outer side of the guide movable sleeve 36, and a self-locking roller is threadedly connected on the outer side of the ball screw 33. A ball nut 38, a self-locking ball nut 38, is fixed with an assembly mounting block 39 on the outside, an assembly bracket 310 is fixed with an assembly mounting block 39 on the outside, a brake 311 is fixed with the outside of the metal bracket 2, one end of the ball screw 33 is fitted inside the brake 311, a lifting drilling device 4 is fixed with the outside of the assembly bracket 310, the lifting drilling device 4 and the lifting mounting plate 37 are fixedly connected, the fixed bracket 31 and the metal bracket 2 are fixedly connected, when conducting groundwater pollution detection, the pumping pipe 9 on the outside of the water pump housing 7 can be inserted into the groundwater intake point, and then the water pump in the water pump housing 7 can be started to pump water, and the pumped water is stored in the groundwater container of the water pump housing 7, and the rotary can be opened Move the protective cover 81, extract a part of groundwater from the groundwater container as a sample and place it in the digestion tube. If it is difficult to extract groundwater, after moving the mounting base 1 to the top of the corresponding water intake position, the servo motor 32 can be started to allow the output shaft of the servo motor 32 to drive the ball screw 33 to rotate. After the ball screw 33 rotates, the self-locking ball nut 38 can be moved in the vertical direction outside the ball screw 33, and the self-locking ball nut 38 can be used to drive the assembly mounting block 39 and the assembly bracket 310 to move at the same time. The assembly bracket 310 is fixedly connected to the lifting and drilling device 4. A lifting mounting plate 37 is also fixed on the outside of the lifting and drilling device 4, which can allow the guide movable sleeve 36 to slide on the outside of the corresponding guide rail 35. The assembly bracket 310 drives the lifting and drilling device 4 to move to a suitable height, and then the brake 311 can be started to lock the ball screw 33. At the same time, the self-locking ball nut 38 can be self-locked, so that the self-locking ball nut 38 and the assembly mounting block 39 can maintain structural stability on the outside of the ball screw 33. Then, the lifting and drilling device 4 is started to lift and drill holes at the groundwater intake point. After drilling, the water pumping pipe 9 can be inserted conveniently. After the water pumping pipe 9 is inserted, the groundwater can be normally taken. When testing the groundwater, 5 mL of distilled water and the total phosphorus water quality analyzer 6 are respectively transferred into two digestion tubes, and then 0.8mL TP-1 reagent and tighten the tube cover, turn the solution in the digestion tube upside down and mix it, then operate the operation display screen 11, let the total phosphorus water quality tester 6 heat up to the set temperature, then open the detection protection cover 10 on the top of the total phosphorus water quality tester 6, and put the two digestion tubes into the digestion holes of the total phosphorus water quality tester 6 and heat them. After the digestion is completed, take out the digestion tubes, then wait for the digestion tubes to cool to room temperature, then turn the digestion tubes upside down to mix the solution, then open the digestion tube covers, add 0.2mL TP-2 reagent and 0.4mL TP-3 reagent to the digestion tubes respectively, tighten the tube cover, turn the digestion tubes upside down to mix the solution, react at room temperature for fifteen minutes, and then perform groundwater determination. .

[0039] As an embodiment of the present invention, the water pumping container protection device 8 includes a rotating protective cover 81, a cast iron mounting block 82 is fixed on the top of the rotating protective cover 81, a cast iron handle 83 is provided on the top of the cast iron mounting block 82, the rotating protective cover 81 and the water pump housing 7 are rotatably connected through a rotating shaft, the water pump housing 7 is fixed to the top of the mounting base 1, an assembly cast iron block 84 is fixed to the outer side of the rotating protective cover 81, a first carbon steel plate 85 is fixed to the side of the assembly cast iron block 84 away from the rotating protective cover 81, a second carbon steel plate 86 is fixed to the outer side of the water pump housing 7, a carbon steel short semi-threaded rod 87 is fixed to the side of the first carbon steel plate 85 away from the assembly cast iron block 84, and a first carbon steel plate 87 is fixed to the side of the first carbon steel plate 85 away from the assembly cast iron block 84. A carbon steel long and half-threaded rod 88 is fixed to one side of the second carbon steel plate 86 away from the water pump housing 7, a shielding plate 89 is fixed to one end of the carbon steel long and half-threaded rod 88 away from the second carbon steel plate 86, the radius size of the carbon steel short and half-threaded rod 87 is equal to the radius size of the carbon steel long and half-threaded rod 88, the lower bottom surface of the first carbon steel plate 85 is in contact with the upper top surface of the second carbon steel plate 86, the outer sides of the carbon steel long and half-threaded rod 88 and the carbon steel short and half-threaded rod 87 are threadedly connected with a carbon steel nut 810, and the outer side of the carbon steel nut 810 is provided with anti-slip grooves. After the pumping pipe 9 on the outside of the water pump housing 7 is inserted into the groundwater intake, the water pump in the water pump housing 7 can be started to pump water, and the pumped water is stored in the pump In the groundwater container of the water pump housing 7, when opening the rotating protective cover 81, the user needs to first rotate the carbon steel nut 810 on the outside of the carbon steel short half-threaded rod 87 and the carbon steel long half-threaded rod 88 counterclockwise to allow the carbon steel nut 810 to slip out from the outside of the carbon steel short half-threaded rod 87. At this time, the carbon steel nut 810 is still movably sleeved on the outside of the carbon steel long half-threaded rod 88, and the baffle plate 89 at one end of the carbon steel long half-threaded rod 88 serves to limit the carbon steel nut 810, thereby preventing the carbon steel nut 810 from falling off from the outside of the carbon steel long half-threaded rod 88. Then the cast iron handle 83 can be pulled to drive the rotating protective cover 81 to rotate and lift up. After 81 is opened, the user can conveniently extract a portion of groundwater from the groundwater container of the water pump housing 7 as a test sample. When the rotating protective cover 81 needs to be closed again after use, the cast iron handle 83 can be turned to allow the rotating protective cover 81 to cover the top of the water pump housing 7, and the lower bottom surface of the first carbon steel plate 85 is fitted with the upper top surface of the second carbon steel plate 86. At this time, the lower bottom surface of the carbon steel short semi-threaded rod 87 is fitted with the upper top surface of the carbon steel long semi-threaded rod 88, and the carbon steel nut 810 can be rotated clockwise to allow the carbon steel nut 810 to be threadedly connected to the carbon steel short semi-threaded rod 87 and the carbon steel long semi-threaded rod 88, so as to conveniently complete the closing and locking of the rotating protective cover 81.

[0040] The working principle of the present invention is as follows: the device is provided with a lifting fine-tuning device 3. When conducting groundwater pollution detection, the water pumping pipe 9 outside the water pump housing 7 can be inserted into the groundwater intake point, and then the water pump in the water pump housing 7 can be started to pump water. The pumped water is stored in the groundwater container of the water pump housing 7. The rotating protective cover 81 can be opened to extract a part of the groundwater from the groundwater container as a sample and placed in the digestion tube. If the groundwater is difficult to be taken, after the mounting base 1 is moved to the top of the corresponding water intake position, the servo motor 32 can be started to make the servo motor 3 The output shaft drives the ball screw 33 to rotate. After the ball screw 33 rotates, the self-locking ball nut 38 can move in the vertical direction outside the ball screw 33, and the self-locking ball nut 38 drives the assembly mounting block 39 and the assembly bracket 310 to move simultaneously. The assembly bracket 310 is fixedly connected to the lifting drilling device 4. A lifting mounting plate 37 is also fixed to the outside of the lifting drilling device 4, which allows the guide moving sleeve 36 to slide on the outside of the corresponding guide rail 35, thereby playing a guiding role. After the assembly bracket 310 drives the lifting drilling device 4 to move to a suitable height, Start the brake 311 to lock the ball screw 33. At the same time, the self-locking ball nut 38 can self-lock, so that the self-locking ball nut 38 and the assembly mounting block 39 can maintain structural stability on the outside of the ball screw 33. Then start the lifting drilling device 4 to lift and drill the groundwater intake point. After drilling, it is convenient to insert the pumping pipe 9. After the pumping pipe 9 is inserted, normal groundwater extraction can be carried out. When testing groundwater, 5 mL of distilled water and total phosphorus water quality analyzer 6 are respectively transferred into two digestion tubes, and then into the blank and groundwater sample digestion tubes respectively. Add 0.8mL TP-1 reagent and tighten the tube cap, turn the solution in the digestion tube upside down and mix it, then operate the operation display screen 11, let the total phosphorus water quality tester 6 heat up to the set temperature, open the detection protection cover 10 on the top of the total phosphorus water quality tester 6, and put two digestion tubes into the digestion holes of the total phosphorus water quality tester 6 and heat them. After the digestion is completed, take out the digestion tubes, then wait for the digestion tubes to cool to room temperature, then turn the solution in the digestion tubes upside down to mix the solution, then open the lids of each digestion tube, and add 0.2mL TP-2 reagent and 0.4mL TP-3 reagent, tighten the tube cap, turn the tube upside down to digest the solution and mix it, react at room temperature for fifteen minutes before measuring groundwater. The principle is to use potassium persulfate to digest the sample under neutral conditions, oxidize all the phosphorus contained into orthophosphate, and in an acidic medium, orthophosphate reacts with ammonium molybdate to generate phosphomolybdic heteropoly acid in the presence of antimony salt, which is immediately reduced by ascorbic acid to generate a blue complex, thereby completing the detection of groundwater pollution; the device is provided with a pumping container protection device 8, the outer side of the pump housing 7 After the pumping pipe 9 is inserted into the groundwater intake, the pump in the pump housing 7 can be started to pump water, and the pumped water is stored in the groundwater container of the pump housing 7. When opening the rotating protective cover 81, the user needs to first rotate the carbon steel short semi-threaded rod 87 and the carbon steel long semi-threaded rod 88 outside the carbon steel nut 810 counterclockwise to make the carbon steel nut 810 slip out from the outside of the carbon steel short semi-threaded rod 87. At this time, the carbon steel nut 810 is still movably sleeved on the outside of the carbon steel long semi-threaded rod 88, and the carbon steel long semi-threaded rod 88 The shielding plate 89 at one end serves to limit the carbon steel nut 810 to prevent the carbon steel nut 810 from falling off the outside of the carbon steel long semi-threaded rod 88. Then, the cast iron handle 83 can be pulled to drive the rotating protective cover 81 to rotate and lift up. After the rotating protective cover 81 is opened, the user can conveniently extract a portion of groundwater from the groundwater container of the water pump housing 7 as a test sample. When the rotating protective cover 81 needs to be closed again after use, the cast iron handle 83 can be toggled to make the rotating protective cover 81 rotate and lift up. The rotating protective cover 81 is covered on the top of the water pump housing 7, and the lower bottom surface of the first carbon steel plate 85 is fitted with the upper top surface of the second carbon steel plate 86. At this time, the lower bottom surface of the carbon steel short semi-threaded rod 87 is fitted with the upper top surface of the carbon steel long semi-threaded rod 88, and the carbon steel nut 810 can be rotated clockwise to make the carbon steel nut 810 threadedly connected with the carbon steel short semi-threaded rod 87 and the carbon steel long semi-threaded rod 88, so as to conveniently complete the closing and locking of the rotating protective cover 81, which is simple to use and avoids the loss of the carbon steel nut 810.

[0041] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A groundwater pollution detection device, comprising a mounting base (1), characterized in that: A metal bracket (2) is fixed on the top of the mounting base (1), a lifting fine-adjustment device (3) is fixed on the outside of the metal bracket (2), a lifting drilling device (4) is connected to the outside of the lifting fine-adjustment device (3), a drill bit (5) is installed on the bottom of the lifting drilling device (4), a total phosphorus water quality meter (6) is fixed on the top of the mounting base (1), a water pump housing (7) is installed on the top of the mounting base (1), and a water pump container protection device (8) is provided on the top of the water pump housing (7), and the A water pump is arranged inside the water pump housing (7), and a water pump pipe (9) is connected to the outside of the water pump; a detection protection cover (10) is rotatably connected to the top of the total phosphorus water quality meter (6) via a rotating shaft; an operation display screen (11) is arranged on the outside of the total phosphorus water quality meter (6); a metal handle (12) is fixed to the top of the detection protection cover (10); a mounting fixing pad (13) is fixed to the outside of the detection protection cover (10); and a counterweight fixing block (14) is fixed to the top of the mounting fixing pad (13); The lifting fine-tuning device (3) comprises a fixed bracket (31), a servo motor (32) is fixed on the top of the fixed bracket (31), a ball screw (33) is fixed on the outer side of the output shaft of the servo motor (32), a fixed cast iron plate (34) is fixed on the outer side of the metal bracket (2), a guide rail (35) is fixed on the outer side of the fixed cast iron plate (34), a guide movable sleeve (36) is slidably sleeved on the outer side of the guide rail (35), a lifting installation plate (37) is fixed on the outer side of the guide movable sleeve (36), a self-locking ball nut (38) is threadedly connected on the outer side of the ball screw (33), an assembly mounting block (39) is fixed on the outer side of the self-locking ball nut (38), an assembly bracket (310) is fixed on the outer side of the assembly mounting block (39), and a brake (311) is fixed on the outer side of the metal bracket (2).

2. A groundwater pollution detection device according to claim 1, characterized in that: A groundwater container is fixed inside the water pump housing (7), and the groundwater container is communicated with the water pump housing (7). A water intake knob is threadedly connected to the top of the groundwater container.

3. A groundwater pollution detection device according to claim 1, characterized in that: The total phosphorus water quality measuring instrument (6) is provided with a digestion hole inside, and a digestion tube is movably inserted into the digestion hole.

4. The groundwater pollution detection device according to claim 1, characterized in that: One end of the ball screw (33) is mounted in cooperation with the inside of the brake (311); the lifting and drilling device (4) is fixed to the outside of the assembly bracket (310); the lifting and drilling device (4) and the lifting and mounting plate (37) are fixedly connected; and the fixed bracket (31) and the metal bracket (2) are fixedly connected.

5. The groundwater pollution detection device according to claim 1, characterized in that: The fixed cast iron plate (34) and the metal bracket (2) are fixed by bolts, and the fixed cast iron plate (34) and the guide rail (35) are fixed by bolts. A through hole is provided inside the mounting base (1), and the size of the through hole is adapted to the size of the lifting drilling device (4).

6. The groundwater pollution detection device according to claim 1, characterized in that: The water pumping container protection device (8) comprises a rotating protective cover (81), a cast iron mounting block (82) is fixed on the top of the rotating protective cover (81), a cast iron handle (83) is arranged on the top of the cast iron mounting block (82), an assembly cast iron block (84) is fixed on the outer side of the rotating protective cover (81), a first carbon steel plate (85) is fixed on the side of the assembly cast iron block (84) away from the rotating protective cover (81), a second carbon steel plate (86) is fixed on the outer side of the water pump housing (7), a carbon steel short semi-threaded rod (87) is fixed on the side of the first carbon steel plate (85) away from the assembly cast iron block (84), and a carbon steel long semi-threaded rod (88) is fixed on the side of the second carbon steel plate (86) away from the water pump housing (7).

7. A groundwater pollution detection device according to claim 6, characterized in that: A shielding plate (89) is fixed to one end of the carbon steel long semi-threaded rod (88) away from the second carbon steel plate (86), and the outer sides of the carbon steel long semi-threaded rod (88) and the carbon steel short semi-threaded rod (87) are threadedly connected with a carbon steel nut (810), and the outer side of the carbon steel nut (810) is provided with anti-slip grooves.

8. The groundwater pollution detection device according to claim 6, characterized in that: The rotating protective cover (81) and the water pump housing (7) are rotatably connected via a rotating shaft, and the water pump housing (7) is fixed on the top of the mounting base (1).

9. The groundwater pollution detection device according to claim 6, characterized in that: An opening is provided at the top of the water pump housing (7), and the position of the opening matches the position of the groundwater container inside the water pump housing (7).

10. The groundwater pollution detection device according to claim 6, characterized in that: The radius size of the carbon steel short semi-threaded rod (87) is equal to the radius size of the carbon steel long semi-threaded rod (88), and the lower bottom surface of the first carbon steel plate (85) is in contact with the upper top surface of the second carbon steel plate (86).

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