Efficient underground water quality detection sampling device

Abstract

The invention relates to the technical field of soil layer drilling, in particular to an efficient underground water quality detection sampling device which comprises a base, a fixing seat is further arranged on the base, and a device storage structure and a sample storage structure are arranged on the left side and the right side of the fixing seat respectively; a supporting structure is further arranged in the middle of the fixing base and comprises a vertical plate, a transverse plate, an axial motor, a mounting base, a lead screw, a guide rod and a drill rod. The drill rod is connected with the mounting seat through a rotating piece; the drill rod comprises a drill bit, a rod body, a sampling water pump and a sampling pipe; a sampling hole is further formed in the drill bit, and a liquid collecting cavity which is coaxially distributed is formed in the center in the rod body; a first cavity and a second cavity which are distributed from inside to outside are further formed in the rod body and located on the outer side of the liquid collecting cavity, and the sampling hole extends inwards, penetrates through the first cavity and the second cavity and is communicated with the liquid collecting cavity. The device is reasonable in structural design, filtering, collecting, sampling and storing operation of underground water at different heights can be completed on the basis that efficient drilling of underground water soil layers at different depth positions is achieved, and the using effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of soil layer drilling, and in particular to a high-efficiency underground water quality detection and sampling device. Background Art

[0002] In China, shallow groundwater in many provinces is polluted to varying degrees. Since groundwater is usually hidden underground, chemicals on the ground may contaminate groundwater by seeping into the ground. These pollutants may be difficult to detect by taste or smell, and post-treatment is very difficult. Especially in late summer, pollutants in groundwater will eventually flow into rivers and streams. Since groundwater provides water for many rivers, water quality analysis of groundwater is essential. In the process of water quality testing, water sample collection and preservation are important links in water quality analysis. In order to obtain accurate and comprehensive water quality analysis data, it is first necessary to use the correct sampling method and water sample preservation method and send samples for analysis and testing in time. The correct sampling and preservation method is the prerequisite for obtaining reliable test results. In particular, water samples for collecting microbial indicators must be strictly sterile before use, so the container must be sterilized by dry heat or wet heat.

[0003] In principle, the time interval from sampling to analysis should be as short as possible. If the water sample cannot be analyzed in time, it should generally be stored in a low-temperature dark room below 5°C (about 3 to 4°C is appropriate). This can inhibit biological activity and significantly reduce biochemical effects. The structure of the groundwater quality detection sampling equipment in the prior art is relatively bulky, inconvenient to move outdoors, and time-consuming and laborious. At the same time, the soil layer drilling structure for underground sampling is relatively simple, and the use effect is not good. It is impossible to achieve the initial filtration of groundwater impurity particles and accurate and efficient sampling of groundwater at different depths on the basis of stable soil layer drilling, which seriously restricts the operating efficiency of groundwater quality detection sampling. Further analysis shows that the groundwater quality detection sampling in the prior art is a simple structure sampling. For the sterilization storage of sampling instruments and the low-temperature dark room storage after sampling, an independent structure is adopted, which is inconvenient to carry. It is impossible to achieve integrated sampling instrument storage, sampling of preset groundwater volume, and low-temperature dark room storage conditions for samples after sampling. The use effect is not good. For this reason, we need an efficient groundwater quality detection sampling device. Summary of the invention

[0004] In order to solve the above-mentioned shortcomings and deficiencies in the use of existing groundwater detection sampling technologies, the present invention provides a high-efficiency groundwater quality detection sampling device with reasonable structural design, easy to move and fix in position, saving time and effort. On the basis of achieving efficient drilling of groundwater soil layers at different depths, it completes the filtering and collection operations of groundwater at different heights, further improves the groundwater sampling accuracy, and at the same time realizes integrated sampling instrument storage, sampling of preset amounts of groundwater, and low-temperature darkroom storage conditions for samples after sampling, thus achieving good use effect.

[0005] The present invention adopts the following technical solutions to achieve the above purpose: A high-efficiency underground water quality detection sampling device comprises a base, which is distributed on the left and right sides, and a movable structure is also provided under the base, so that the base can be moved to a preset position and then the position is enhanced to fix the sampling operation; a fixed seat is also provided on the base, and an instrument storage structure and a sample storage structure are respectively provided on the left and right sides of the fixed seat; a supporting structure is also provided in the middle of the fixed seat, and the supporting structure comprises a vertical plate, a horizontal plate, an axial motor, a mounting seat, a screw rod, a guide rod and a drill rod; the vertical plate is distributed vertically, and the bottom end is connected and fixed to the fixed seat; the horizontal plate is horizontally distributed and arranged at the top end of the vertical plate; the axial motor is fixedly installed on the horizontal plate through a bracket, and the screw rod and the guide rod are vertically distributed and arranged between the horizontal plate and the fixed seat, and one end of the screw rod is connected to the axial motor; the mounting seat is arranged on the screw rod and the guide rod, and a threaded connection is maintained between the screw rod and the mounting seat, and a sliding connection is maintained between the guide rod and the mounting seat; the drill rod The drill rod is connected to the mounting seat through a rotating member; the drill rod includes a drill bit and a rod body; the rod body is vertically distributed, and the rod body and the mounting seat are relatively rotatable and cannot be relatively moved through a keyway; the drill bit is arranged at the lower end of the rod body and the two are an integrally formed structure; the drill bit is also provided with a sampling hole, and a coaxially distributed liquid collecting cavity is arranged in the center of the rod body; a first cavity and a second cavity distributed from the inside to the outside are also arranged in the rod body and located outside the liquid collecting cavity, and the sampling hole extends inwardly through the first cavity and the second cavity and communicates with the liquid collecting cavity; the first cavity is filled with a gravel filter block; the second cavity is filled with a pebble filter block, and the pebble filter block is larger than the outer diameter of the gravel filter block; a vertically distributed drainage pipe is arranged in the liquid collecting cavity; the drainage pipe is also connected to a sampling pipe, the sampling pipe is long enough, and one end of the sampling pipe is relatively rotatable and cannot be relatively moved with the drainage pipe, and the other end is connected to a sampling water pump, and one end of the sampling water pump is also connected to a sampling structure.

[0006] As a preferred technical solution: the moving structure includes moving wheels, an electric hydraulic telescopic column, a control switch and a bubble level; the moving wheels are fixedly mounted on the base through a bracket; the electric hydraulic telescopic column is vertically distributed, and one end is arranged on the base, and the other end is connected to a support plate; the control switch is arranged on the base and maintains an electrical connection with the electric hydraulic telescopic column; the bubble level is arranged on the base, and includes an axial scale arranged in the length direction of the base and a radial scale arranged in the width direction of the base.

[0007] A further preferred technical solution: the rotating part includes a rotary motor, a driving wheel, a driven wheel and a toothed belt; the rotary motor is fixedly mounted on the mounting seat through a bracket, the driving wheel is arranged on the output shaft of the rotary motor, the driven wheel is arranged on the drill rod, and the toothed belt is arranged between the driven wheel and the driving wheel.

[0008] A further preferred technical solution: the drill bit comprises a base body and a spiral blade arranged outside the base body; the sampling holes are multiple and distributed in an annular shape, and are all arranged in a spiral groove formed between two spiral blades.

[0009] A further preferred technical solution: a connecting piece is provided between the drainage pipe and the sampling tube, the connecting piece includes a connecting tube and a first joint arranged at the lower end of the connecting tube and a second joint arranged at the upper end of the connecting tube; a flow channel is provided in the connecting tube; the second joint is arranged on the connecting tube through a sealing bearing, and an oil seal is also provided on the outside; the second joint and the connecting tube can rotate relative to each other but cannot move relative to each other; the first joint and the drainage pipe, as well as the second joint and the sampling tube are connected by pipe clamps.

[0010] A further preferred technical solution: the sampling structure includes a sampling box, a base, a filling pipe, and an electromagnetic flow control valve; the sampling box is arranged in the middle of the fixed base, and the interior is a cavity structure; the base is arranged at the bottom of the sampling box, and a card slot is provided in the center, and a rubber cotton with a ring structure is provided in the card slot; the filling pipe is arranged on the side wall of the sampling box, and the input end is connected to the sampling pipe, the sampling tube is long enough, and the filling pipe can move up and down; the electromagnetic flow control valve is arranged on the filling pipe.

[0011] A further preferred technical solution: a driving member is also provided on one side of the filling pipe; the driving member includes a moving seat, a slide rail, a fixed block, a rotating screw and a slider and a moving motor; the slide rail is vertically distributed on the inner wall of the sampling box, the moving seat is horizontally distributed, and the filling pipe is vertically distributed and fixedly installed on the moving seat; the slider is arranged on the moving seat, and the slider is matched with the slide rail and installed; the fixed block is arranged at the center of the moving seat; the side wall of the moving seat is provided with side wing plates distributed up and down, the rotating screw is vertically distributed and passes through the fixed block to be connected with the side wing plates distributed on both sides, the rotating screw and the fixed block maintain a threaded connection, and the rotating screw and the side wing plates are connected through bearings; the moving motor is arranged on the sampling box through a bracket, and the output shaft is connected to the rotating screw.

[0012] A further preferred technical solution: the utensil storage structure comprises an utensil storage cavity, a partition, a sponge card block and an ultraviolet sterilization lamp; the utensil storage cavity is arranged on the left side of the fixing seat; the partition is a mesh structure, and the partition is a plurality of partitions distributed in a criss-cross pattern, and form placement positions, and the placement positions maintain a front-to-back distribution; the sponge card block is adapted to be installed in the placement position, and an installation groove is provided in the middle, and the cross-section of the installation groove is a trapezoidal structure with a large outer end and a small inner end, and the ultraviolet sterilization lamp is fixedly installed on the top of the utensil storage cavity by a clamp.

[0013] A further preferred technical solution: the sample storage structure includes a sample storage cavity, a base plate, a placement seat, and a cover plate; the sample storage cavity is arranged on the right side of the fixed seat, and the base plate is a mesh structure and is arranged at the lower part of the sample storage cavity; a refrigeration device is also provided at the bottom of the sample storage cavity and below the base plate, the placement seat is made of rubber cotton as a whole, and is arranged above the base plate, and the bottom surface of the placement seat is kept smaller than the area of ​​the base plate, and a plurality of placement grooves evenly distributed and suitable for installing groundwater sampling instruments are also provided in the placement seat; one side of the cover plate is hinged to the top side wall of the sample storage cavity.

[0014] A further preferred technical solution: a temperature sensor is further provided in the sample storage cavity, and an LED display screen is further provided on the top surface of the fixing seat located on one side of the sample storage cavity; the temperature sensor is electrically connected to the refrigeration device and the LED display screen respectively.

[0015] Compared with the prior art, the invention has the following beneficial effects: the invention has a reasonable structural design; due to the use of a drill rod structure with a special structure and optimized space design, the entire drilling and groundwater collection structure has relatively few components, which saves structural space, and can compress the use of components by more than 30% compared with traditional groundwater soil layer drilling and detection sampling with the same efficiency; the manufacturing process is simplified, and the dynamic balance of the structure is improved; through the cooperation of the moving wheel, the electric hydraulic telescopic column, the control switch and the bubble level ruler, it is easy to move and fix the position, saving time and effort, ensuring the basic horizontality of the sampling device, and also providing a strong foundation for the accuracy of subsequent soil layer drilling; further adopting the design of the vertical plate, the horizontal plate, the axial motor, the mounting seat, the screw rod, the guide rod and the drill rod, on the basis of achieving high efficiency in groundwater soil layer drilling at different depths, the filtering, collecting, sampling and storing operations of groundwater at different heights can be quickly completed, further improving the accuracy of groundwater sampling and detection, and at the same time, the purpose of integrated sampling device storage, groundwater preset amount filling sampling and sampling and low-temperature darkroom storage conditions of the sample after sampling is realized, the use effect is good, and the operation efficiency of groundwater detection sampling is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of a high-efficiency underground water quality detection sampling device of the present invention; Figure 2 It is a side view of the overall structure of a high-efficiency underground water quality detection sampling device of the present invention; Figure 3 It is a local structure fixed state diagram of a high-efficiency groundwater quality detection sampling device of the present invention; Figure 4 It is a schematic diagram of a supporting structure of a high-efficiency groundwater quality detection sampling device of the present invention; Figure 5 It is a rear view schematic diagram of a fixing base of a high-efficiency groundwater quality detection sampling device of the present invention; Figure 6 A three-dimensional diagram of a driving member of a high-efficiency underground water quality detection and sampling device of the present invention; Figure 7 A structural cross-sectional view of a drill rod of a high-efficiency groundwater quality detection and sampling device of the present invention; Figure 8It is a partial structural diagram of the device storage chamber of a high-efficiency groundwater quality detection sampling device of the present invention; Fig. 9 The present invention is a schematic diagram of a mounting base of a high-efficiency groundwater quality detection sampling device.

[0018] In the figure: 1. base; 2. mobile structure; 21. mobile wheel; 22. electric hydraulic telescopic column; 23. control switch; 24. bubble level; 25. axial ruler; 26. radial ruler; 27. support plate; 3. fixed seat; 4. equipment storage structure; 41. equipment storage cavity; 42. partition; 43. sponge card block; 44. ultraviolet germicidal lamp; 45. placement card position; 46. installation slot; 5. sample storage structure; 51. sample storage cavity; 52. bottom plate; 53. placement seat; 54. cover plate; 55. refrigeration equipment; 56. placement slot; 57. LED display screen; 58. Temperature sensor; 6. Support structure; 61. Vertical plate; 62. Horizontal plate; 63. Axial motor; 64. Mounting seat; 65. Screw rod; 66. Guide rod; 7. Drill rod; 71. Drill bit; 711. Base; 712. Spiral blade; 72. Rod body; 73. Sampling hole; 74. Liquid collecting chamber; 75. First chamber; 76. Second chamber; 77. Gravel filter block; 78. Pebble filter block; 8. Sampling water pump; 9. Drain pipe; 10. Sampling tube; 11. Sampling structure; 111. Sampling box; 112 , base; 113, filling pipe; 114, electromagnetic flow control valve; 115, slot; 12, rotating part; 121, rotary motor; 122, driving wheel; 123, driven wheel; 124, toothed belt; 13, connecting part; 131, connecting pipe; 132, first joint; 133, second joint; 134, oil seal; 135, sealed bearing; 14, driving part; 141, moving seat; 142, slide rail; 143, fixed block; 144, rotating screw; 145, slider; 146, moving motor; 147, side wing plate. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Figures 1 to 9 As shown: A high-efficiency groundwater quality detection sampling device. The present invention has a reasonable structural design. Due to the use of a special drill rod structure and optimized space design, the entire drilling and groundwater collection structure consists of relatively few parts and components, saving structural space. Compared with traditional groundwater soil layer drilling and detection sampling with the same efficiency, it can compress the use of parts by more than 30%. The manufacturing process is simplified, and the dynamic balance of the structure is improved, which is more efficient for groundwater detection sampling. The sampling device includes a base 1, which is distributed on the left and right. In this embodiment, a cavity is also provided inside the base, and a battery is adapted to be installed in the cavity to power the sampling device. A preferred technical solution, such as Figure 1 As shown: a mobile structure 2 is also provided under the base 1, so that the base 1 can be moved to a preset position to enhance the position fixation to complete the sampling operation. Specifically, the mobile structure 2 includes a moving wheel 21, an electric hydraulic telescopic column 22, a control switch 23 and a bubble level 24. The moving wheel 21 is fixedly mounted on the base 1 through a bracket. Such a configuration ensures the convenient movement of detection points at different positions outdoors. The electric hydraulic telescopic column 22 is distributed vertically, and one end is arranged on the base 1, and the other end is connected to a support plate 27. Through the cooperation of the moving wheel 21, the electric hydraulic telescopic column 22, the control switch 23 and the bubble level 24, it is convenient to move and fix the position, saving time and effort, ensuring the basic horizontality of the sampling device, and also providing a strong foundation for the accuracy of subsequent soil drilling.

[0021] The electric hydraulic telescopic column 22 and the moving wheel 21 are four sets of matching installations, ensuring sufficient stability of the support. The top of the electric hydraulic telescopic column 22 and the base 1, and the bottom of the electric hydraulic telescopic column 22 and the support plate 27 are fixed by bolts. The support plate 27 is a circular structure with a large enough outer diameter to ensure the overall stability of the sampling device. Figure 1 As shown: the control switch 23 is arranged on the base 1 and is electrically connected to the electric hydraulic telescopic column 22. The bubble level 24 is arranged on the base 1 and includes an axial ruler 25 arranged in the length direction of the base 1 and a radial ruler 26 arranged in the width direction of the base 1. With such arrangement, the horizontality of the base 1 in the left-right direction is observed through the bubble indication of the axial ruler 25, and the horizontality of the base 1 in the front-back direction is observed through the bubble indication of the radial ruler 26. Then, the staff can adjust the height change of the electric hydraulic telescopic column 22 at the corresponding position through corresponding observation, and finally adjust and ensure the horizontality of the base to adapt to the supporting ground of different outdoor scenes. Among them, the staff can realize the free switching between the mobile state and the fixed state by controlling the telescopic change of the electric hydraulic telescopic column 22. Specifically, the control switch 23 is used to start the overall contraction of the electric hydraulic telescopic column 22, and the moving wheel 21 contacts the ground. The sampling device can be in a mobile state and the position movement adjustment can be performed. For details, refer to Figure 1 and Figure 2By controlling the switch 23 to start the overall extension of the electric hydraulic telescopic column 22, the moving wheel 21 is separated from the ground, and the sampling device can be in a fixed state, providing a solid foundation for subsequent stable and efficient soil drilling and groundwater sampling. Figure 3 The structure shown.

[0022] like Figure 1 and Figure 5 As shown: In this embodiment, a fixing seat 3 is also provided on the base 1, and the fixing seat 3 is fixed to the base 1 by welding, and the fixing seat 3 is also distributed on the left and right sides. The left and right sides of the fixing seat 3 are respectively provided with an instrument storage structure 4 and a sample storage structure 5. Figure 5 As shown: the equipment storage structure 4 includes an equipment storage cavity 41, a partition 42, a sponge block 43 and an ultraviolet sterilization lamp 44. The equipment storage cavity 41 is arranged on the left side of the fixing seat 3, and a door is arranged on the front of the equipment storage cavity 41. One side of the door is hinged to the side wall of the equipment storage cavity, and the other side is connected to the fixing seat 3 through a password lock to increase safety. The partition 42 is a mesh structure, and the partition 42 is a plurality of partitions 42 distributed in a criss-cross pattern to form a columnar structure placement position 45, and the placement position 45 is kept distributed front and back; refer to Figure 8 The structure shown. The sponge block 43 is adapted to be installed in the placement position 45, and a mounting groove 46 is provided in the middle, wherein the length of the sponge block 43 is greater than half the depth of the placement position 45. The cross-section of the mounting groove 46 is a trapezoidal structure with a large outer end and a small inner end. The purpose of such a setting is to increase the fastening effect of the sampling instrument (that is, a cylindrical sampling bottle, a sampling tube) adapted to be clamped and installed. The ultraviolet sterilization lamp 44 is fixedly installed on the top of the instrument storage cavity 41 by a clamp. The ultraviolet sterilization lamp 44 is connected to a switch button. Based on the actual sampling and detection conditions, during the use of the sampling device, the ultraviolet sterilization lamp 44 is in a normally open state. The purpose of such a setting is to have a certain degree of sterilization effect on the sampling instrument, to ensure that the interior of the instrument storage cavity 41 is in a sterile environment as a whole, and to provide a favorable basis for subsequent groundwater sampling and detection.

[0023] like Figure 1 and Figure 5 As shown: In this embodiment, the sample storage structure 5 includes a sample storage cavity 51, a bottom plate 52, a placement seat 53, and a cover plate 54. Figure 5 For rear view, refer to Figure 5As shown: the sample storage chamber 51 is arranged on the right side of the fixing seat 3, and the bottom plate 52 is a mesh structure and is arranged at the lower part of the sample storage chamber 51; a gap is left between the bottom plate 52 and the bottom surface of the sample storage chamber 51. A refrigeration device 55 is also provided at the bottom of the sample storage chamber 51 and below the bottom plate 52. The refrigeration device 55 is composed of a compressor, a condenser and other structures. The main purpose is to achieve temperature refrigeration control. It is a prior art and is not described in detail. The placement seat 53 is made of rubber cotton as a whole and is arranged above the bottom plate 52, and the bottom surface of the placement seat 53 is kept smaller than the area of ​​the bottom plate 52. Fig. 9 As shown, the bottom plate 52 is a larger square structure, and the placement seat 53 is a smaller square structure. The purpose of such a setting is to ensure that the cold air flow can smoothly fill the entire sample storage cavity 51. The placement seat 53 is also provided with a plurality of placement grooves 56 that are evenly distributed and suitable for installing groundwater sampling equipment; the placement grooves 56 can be designed to have a variety of sizes, the purpose is to adapt to the installation of sampling tubes of different diameters, and a structure with a uniform inner diameter size can also be adopted, and the outer diameter of the preferred placement groove is slightly smaller than the outer diameter of the corresponding sampling tube, so that elastic tightening can be performed to increase stability. One side of the cover plate 54 is hinged to the top side wall of the sample storage cavity 51, and the other end is connected through a fingerprint password lock, which is convenient for opening and increases safety.

[0024] Among them, Figure 5 As shown: the sample storage chamber 51 is also provided with a temperature sensor 58, and the top surface of the fixing seat 3 is located on one side of the sample storage chamber 51 and is also provided with an LED display screen 57; the temperature sensor 58 is electrically connected to the refrigeration device 55 and the LED display screen 57 respectively. The LED display screen 57 is used to display the real-time monitoring temperature of the temperature sensor 58 in real time, and at the same time provides a temperature control function. The staff can set the temperature control through the LED display screen, which should generally meet the low-temperature darkroom environment of less than 5°C (about 3 to 4°C is appropriate). The temperature sensor 58 and the refrigeration device 55 and the LED display screen 57 can realize automatic temperature control and temperature display through a PLC controller. The principle of the PLC controller is a prior art, so it is not repeated here. The main protection of the present invention is the mechanical structure. Preferably, in this embodiment, the sample storage chamber 51 can also be provided with an ultraviolet sterilization lamp to ensure and provide a sterile environment for the sample storage chamber 51.

[0025] like Figure 1 and Figure 4As shown: In this embodiment, a support structure 6 is also provided in the middle of the fixed seat 3, and the support structure 6 includes a vertical plate 61, a horizontal plate 62, an axial motor 63, a mounting seat 64, a screw 65, a guide rod 66 and a drill rod 7. The vertical plate 61 is vertically distributed, and the bottom end is connected and fixed to the fixed seat 3; reinforcing ribs are also provided between the vertical plate 61 and the fixed seat 3. The horizontal plate 62 is horizontally distributed and arranged at the top of the vertical plate 61. The axial motor 63 is fixedly installed on the horizontal plate 62 through a bracket, and the screw 65 and the guide rod 66 are vertically distributed and arranged between the horizontal plate 62 and the fixed seat 3. Specifically, bearings are provided at the connection between the screw 65 and the horizontal plate 62 and the fixed seat 3. For details, refer to Figure 4 The structure shown in the figure is shown in the figure, and one end of the screw rod 65 is connected to the axial motor 63; the axial motor adopts a servo control motor. The mounting seat 64 is arranged on the screw rod 65 and the guide rod 66, and the screw rod 65 and the mounting seat 64 are threadedly connected, and the guide rod 66 and the mounting seat 64 are slidably connected. Preferably, the guide rod 66 is also provided with a scale line for observing and indicating the descending height of the drill rod. In this way, the axial motor 63 starts to drive the mounting seat 64 to move up and down; specifically, the axial motor 63 starts to rotate forward, which will drive the screw rod 65 to rotate clockwise, and then under the sliding guide cooperation of the mounting seat 64 and the guide rod 66, the screw rod 65 rotates clockwise to drive the mounting seat 64 to move downward, that is, to move downward along the screw rod 65 and the guide rod 66 by a preset distance, that is, to drive the drill rod 7 to perform a drilling operation of a preset depth, and complete the purpose of groundwater detection and sampling at different depths. When the axial motor 63 starts to reverse, it will drive the screw rod 65 to rotate counterclockwise, and then under the sliding guide cooperation of the mounting seat 64 and the guide rod 66, the screw rod 65 rotates counterclockwise to drive the mounting seat 64 to move up, that is, move up along the screw rod 65 and the guide rod 66 to reset to the height of the initial position.

[0026] In order to optimize and upgrade the structure of the drill rod for groundwater sampling, it is also necessary to achieve efficient and stable soil drilling operations. Figure 4As shown: the drill rod 7 is connected to the mounting seat 64 through a rotating member 12. Specifically, the rotating member 12 includes a rotary motor 121, a driving wheel 122, a driven wheel 123 and a toothed belt 124. The rotary motor 121 is fixedly mounted on the mounting seat 64 through a bracket, and the rotary motor 121 also adopts a servo control motor. The driving wheel 122 is arranged on the output shaft of the rotary motor 121, the driven wheel 123 is arranged on the drill rod 7, and the toothed belt 124 is arranged between the driven wheel 123 and the driving wheel 122. Among them, the driving wheel 122 and the driven wheel 123 both adopt a gear structure, and then rotate with the assistance of the toothed belt 124. When the rotary motor 121 is started, it will drive the driving wheel 122 to rotate synchronously, and then drive the driven wheel 123 and the drill rod 7 to rotate at a high speed as a whole through the toothed belt 124, so as to realize the basic soil layer drilling operation.

[0027] like Figure 2 and Figure 4 As shown: In this embodiment, the drill rod 7 includes a drill bit 71 and a rod body 72. The rod body 72 is vertically distributed and can rotate relative to the mounting seat 64 through keyway matching, but cannot move relative to the mounting seat 64. This arrangement ensures the stability of the mounting position of the rod body 72 and the high efficiency of rotation. The drill bit 71 is arranged at the lower end of the rod body 72 and the two are an integrated structure. The drill bit 71 is also provided with a sampling hole 73. Specifically, refer to Figure 7 The structure shown is as follows: the drill bit 71 includes a base 711 and a spiral blade 712 arranged on the outside of the base 711. Such arrangement ensures the high drilling efficiency of the foundation. In a preferred technical solution, a filter screen can be arranged at the inner end of the sampling hole 73 to filter large particles of impurities in the soil layer drilling operation. The sampling holes 73 are multiple and distributed in an annular manner, and are all arranged in the spiral groove formed between the two spiral blades 712. A coaxially distributed liquid collecting chamber 74 is arranged in the center of the rod body 72. One end of the drain pipe 9 extends upward through the rod body 72 and is connected to the first joint 132. A first chamber 75 and a second chamber 76 distributed from the inside to the outside are also arranged in the rod body 72 and located on the outside of the liquid collecting chamber 74. The sampling hole 73 extends inward through the first chamber 75, the second chamber 76 and communicates with the liquid collecting chamber 74. In a preferred technical solution, the first chamber 75 is filled with a gravel filter block 77. The second cavity 76 is filled with a pebble filter block 78, and the pebble filter block 78 is larger than the outer diameter of the gravel filter block 77; such an arrangement is used to perform double filtration on groundwater after soil drilling operations, further improving the operating efficiency of groundwater sampling and the accuracy of detection.

[0028] like Figure 7As shown: In this embodiment, a vertically distributed drainage pipe 9 is provided in the liquid collecting chamber 74; a filter screen with a spherical structure is provided at the bottom of the drainage pipe 9 for filtering small-sized impurities again. The drainage pipe 9 is also connected to a sampling tube 10. The sampling tube 10 is long enough, and one end of the sampling tube 10 can rotate relative to the drainage pipe 9 but cannot move relative to it, and the other end is connected to a sampling water pump 8, and one end of the sampling water pump 8 is also connected to a sampling structure 11. When the sampling water pump 8 is started, it will drive the collected groundwater in the liquid collecting chamber to be transported to the sampling structure for sample storage and recording. Specifically, as Figure 7 As shown: a connector 13 is provided between the drainage pipe 9 and the sampling pipe 10, and the connector 13 includes a connecting pipe 131, a first joint 132 arranged at the lower end of the connecting pipe 131, and a second joint 133 arranged at the upper end of the connecting pipe 131. A flow channel is provided inside the connecting pipe 131. The second joint 133 is arranged on the connecting pipe 131 through a sealing bearing 135, and an oil seal 134 is also provided on the outside; the purpose of such a setting is to ensure the stability of the rotation of the second joint, enhance the dynamic balancing effect, and ensure the sealing effect of the liquid delivery flow. The first joint 132 and the drainage pipe 9, and the second joint 133 and the sampling pipe 10 are connected by a pipe clamp, and such a setting ensures the stability of the basic pipeline connection. Preferably, an L-shaped connecting arm can also be provided on the mounting seat 64 to assist in connecting and supporting the second joint 133, so as to ensure that the second joint 133 and the sampling pipe 10 are kept in the same position as a whole. The sampling tube 10 adopts a hose structure. By setting the connection tube 131, the first joint 132 and the second joint 133, the structural design is optimized to ensure that the sampling tube 10 does not rotate, and the drill rod 7 can rotate at high speed, thereby ensuring the efficient basic drilling operation of the drill rod 7. At the same time, it also realizes the stable output of groundwater sampling, greatly improving the operating efficiency of groundwater detection sampling.

[0029] like Figure 5 and Figure 6As shown: In this embodiment, the sampling structure 11 includes a sampling box 111, a base 112, a filling pipe 113, and an electromagnetic flow control valve 114. The sampling box 111 is arranged in the middle of the fixed seat 3, and the interior is a cavity structure. The base 112 is arranged at the bottom of the sampling box 111, and a card slot 115 is provided in the center. The card slot 115 is provided with a rubber cotton of an annular structure; the rubber cotton is a cylindrical ring structure, which can be installed in the card slot 115 by bonding. The purpose of such a setting is to facilitate the placement of the sampling device (sampling tube) in the card slot and keep the filling pipe 113 and the card slot 115 coaxially arranged. The filling pipe 113 is arranged on the side wall of the sampling box 111, and the input end is connected to the sampling tube 10, and the filling pipe 113 can move up and down; the electromagnetic flow control valve 114 is arranged on the filling pipe 113. Specifically, the sampling water pump 8 is arranged in the sampling box 111 and is located at the connection between the sampling tube 10 and the filling tube 113. A fastening clamp is also provided at the connection between the sampling tube 10 and the side wall of the sampling box 111 to ensure that the length of the sampling tube inside the sampling box does not change and to prevent the connection between the sampling tube 10 and the filling tube 113 from loosening. The purpose of setting the electromagnetic flow control valve 114 is to perform sampling and filling of a preset amount of groundwater collection on the sampling tube, thereby ensuring that the weight of the samples in multiple sampling tubes is consistent, which provides a strong foundation for improving the sampling efficiency of subsequent groundwater detection and improving the accuracy of sample detection.

[0030] like Figure 6 As shown: In this embodiment, a driving member 14 is also provided on one side of the filling pipe 113. Specifically, the driving member 14 includes a moving seat 141, a slide rail 142, a fixed block 143, a rotating screw 144, a slider 145 and a moving motor 146. The slide rail 142 is vertically distributed and arranged on the inner wall of the sampling box 111, and can be installed by screws. The moving seat 141 is horizontally distributed, and the filling pipe 113 is vertically distributed and fixedly installed on the moving seat 141; specifically, a fixing groove is provided in the center of the moving seat 141, and the filling pipe 113 is installed in the fixing groove and fixed by a flange connection. The slider 145 is arranged on the moving seat 141, and preferably, the slider 145 is fixedly installed on the moving seat 141, and can be fixed by welding. The slider 145 is matched and installed with the slide rail 142; with such an arrangement, the moving seat 141 can move up and down along the slide rail 142.

[0031] The fixed block 143 is arranged at the center of the movable seat 141; the two can be fastened by bolts or welding. The side wall of the movable seat 141 is provided with side wing plates 147 distributed up and down, the rotating screw 144 is vertically distributed and passes through the fixed block 143 to be connected with the side wing plates 147 distributed on both sides, the rotating screw 144 and the fixed block 143 are threadedly connected, and the rotating screw 144 and the side wing plates 147 are connected by bearings. The movable motor 146 is arranged on the sampling box 111 through a bracket, and the output shaft is connected to the rotating screw 144. The movable motor 146 adopts a servo control motor, and the movable motor 146, the sampling water pump 8 and the electromagnetic flow control valve 114 are all started and stopped by a control panel. The control panel is arranged on the front of the sampling box, and a box door is also arranged on the front of the sampling box. The center of the box door is a transparent glass plate for easy observation by the staff. When the moving motor 146 starts to rotate forward, it will drive the rotating screw 144 to rotate clockwise, and then under the auxiliary guidance of the slider 145 and the slide rail 142, the rotating screw 144 will drive the moving seat 141 to move downward, so that the filling tube 113 enters the inner cavity of the sampling tube to prevent liquid from spilling. When the moving motor 146 starts to rotate reversely, it will drive the rotating screw 144 to rotate counterclockwise, and then under the auxiliary guidance of the slider 145 and the slide rail 142, the rotating screw 144 will drive the moving seat 141 to move upward and reset to the initial height.

[0032] The working process of an efficient groundwater quality detection sampling device: First, the staff starts the overall contraction of the electric hydraulic telescopic column 22 through the control switch 23, and the moving wheel 21 contacts the ground. The sampling device can be in a mobile state and perform position movement adjustment at the outdoor groundwater detection calibration point. Then, the electric hydraulic telescopic column 22 is started to extend as a whole through the control switch 23, and the moving wheel 21 is separated from the ground. The sampling device can be in a fixed state and start stable and efficient soil drilling and groundwater sampling operations.

[0033] Next, the staff will assemble and debug the components and start the axial motor 63 and the rotary motor 121 synchronously. When the axial motor 63 starts to rotate forward, it will drive the screw 65 to rotate clockwise, and then under the sliding guide cooperation of the mounting seat 64 and the guide rod 66, the screw 65 will rotate clockwise to drive the mounting seat 64 to move downward, that is, to move down a preset distance along the screw 65 and the guide rod 66. Synchronously, the start of the rotary motor 121 will drive the driving wheel 122 to rotate synchronously, and then drive the driven wheel 123 and the drill rod 7 to rotate at a high speed as a whole through the toothed belt 124, so as to realize the basic soil layer drilling operation. That is, it drives the drill rod 7 to perform the drilling operation of the preset depth and completes the purpose of groundwater detection and sampling at different depths. At this time, the cooperation of the drill rod 7, the sampling tube 10 and the connecting piece 13 of the special structure effectively completes the efficient operation of the drill rod 7 for soil layer drilling, and also ensures the efficiency of subsequent groundwater sampling and detection.

[0034] When the drill rod 7 drills into the soil layer to a preset depth, the staff will perform professional processing on the drilling. At the same time, the sampling personnel open the equipment storage chamber 41 to take out the sampling tube 10 and place it in the slot of the base 112, and keep it clamped and fixed. The sampling personnel turn on the mobile motor 146, and the mobile motor 146 starts to rotate forward, which will drive the rotating screw 144 to rotate clockwise, and then under the auxiliary guidance of the slider 145 and the slide rail 142, the rotating screw 144 will drive the moving seat 141 to move downward, so that the filling pipe 113 enters the inner cavity of the sampling tube 10 to prevent liquid from spilling. In the next step, the staff will wait for the groundwater to enter the liquid collection chamber 74 after infiltration and filtration through the filter screen, pebble filter block 78, and gravel filter block 77 to collect a preset amount, and then turn on the sampling water pump 8 and the electromagnetic flow control valve 114. Among them, the electromagnetic flow control valve 114 pre-sets the infusion control parameters; when the sampling water pump 8 is started, the groundwater in the liquid collecting chamber 74 passes through the drainage pipe 9, the connecting pipe 131 and the sampling pipe 10 and finally completes the sampling operation of the preset amount of groundwater through the filling pipe 113.

[0035] During the groundwater sampling process, the sampling personnel should immediately put a label on the water container (water sample bottle, sampling tube) or make a detailed record on the water sample manual. The water sample manual should include the location, date, time, water source type, water body appearance, water level, conditions around the water source and outlet, water temperature, air temperature, climate conditions, analysis purpose and project, name of the sampler, etc. of the water sample collection. Then, the sampling tube is tightly covered with a tube cap to complete the sealing operation, and the sampling tube 10 is placed in the sample storage chamber 51. At the same time, the refrigeration equipment 55 in the sample storage chamber 51 is started, and with the cooperation of the temperature sensor 58 and the LED display screen 57, the sample storage chamber 51 is stored in a low-temperature darkroom at about 3 to 4°C, so that the sampled samples can be tested by a subsequent professional water quality testing instrument to ensure the accuracy of the test.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient groundwater quality detection sampling device, characterized in that: The invention comprises a base (1), the base (1) being arranged on the left and right, and a movable structure (2) being arranged below the base (1) so that the base (1) can be moved to a preset position and then the position can be fixed to complete the sampling operation; a fixed seat (3) is also arranged on the base (1), and an instrument storage structure (4) and a sample storage structure (5) are arranged on the left and right sides of the fixed seat (3), respectively; a supporting structure (6) is also arranged in the middle of the fixed seat (3), and the supporting structure (6) comprises a vertical plate (61), a horizontal plate (62), an axial motor (63), a mounting seat (64), a screw rod (65), a guide rod (66) and a drill rod (7); the vertical plate (61) is arranged vertically, and the bottom end is connected to the vertical plate (61) and the bottom end is connected to the vertical plate (61). The fixing seat (3) is connected and fixed; the transverse plate (62) is horizontally distributed and arranged at the top of the vertical plate (61); the axial motor (63) is fixedly installed on the transverse plate (62) through a bracket, the screw rod (65) and the guide rod (66) are vertically distributed and arranged between the transverse plate (62) and the fixing seat (3), and one end of the screw rod (65) is connected to the axial motor (63); the mounting seat (64) is arranged on the screw rod (65) and the guide rod (66), and the screw rod (65) and the mounting seat (64) are threadedly connected, and the guide rod (66) and the mounting seat (64) are slidably connected; the drill rod (7) is connected to the mounting seat (64) through a rotating member (12); The drill rod (7) comprises a drill bit (71) and a rod body (72); the rod body (72) is vertically arranged and can rotate relative to the mounting seat (64) but cannot move relative to the mounting seat (64); the drill bit (71) is arranged at the lower end of the rod body (72) and the two are an integrally formed structure; the drill bit (71) is also provided with a sampling hole (73); a coaxially arranged liquid collecting cavity (74) is provided in the center of the rod body (72); a first cavity (75) and a second cavity (76) are also provided in the rod body (72) and are arranged from the inside to the outside and are located outside the liquid collecting cavity (74); the sampling hole (73) extends inwardly and passes through the first cavity (75). , a second chamber (76) and communicating with the liquid collecting chamber (74); the first chamber (75) is filled with a gravel filter block (77); the second chamber (76) is filled with a pebble filter block (78), and the pebble filter block (78) is larger than the outer diameter of the gravel filter block (77); a vertically distributed drainage pipe (9) is arranged in the liquid collecting chamber (74); the upper end of the drainage pipe (9) is also connected to a sampling pipe (10); the sampling pipe (10) is long enough, and one end of the sampling pipe (10) is relatively rotatable and non-movable with the drainage pipe (9), and the other end is connected to a sampling water pump (8), and one end of the sampling water pump (8) is also connected to a sampling structure (11).

2. The high-efficiency groundwater quality detection sampling device according to claim 1, characterized in that: The mobile structure (2) comprises a mobile wheel (21), an electric hydraulic telescopic column (22), a control switch (23) and a bubble level (24); the mobile wheel (21) is fixedly mounted on the base (1) via a bracket; the electric hydraulic telescopic column (22) is vertically distributed, one end of which is arranged on the base (1), and the other end is connected to a support plate (27); the control switch (23) is arranged on the base (1) and is electrically connected to the electric hydraulic telescopic column (22); the bubble level (24) is arranged on the base (1), and comprises an axial ruler (25) arranged in the length direction of the base (1) and a radial ruler (26) arranged in the width direction of the base (1).

3. A high-efficiency groundwater quality detection sampling device as claimed in claim 2, characterized in that: The rotating member (12) comprises a rotary motor (121), a driving wheel (122), a driven wheel (123) and a toothed belt (124); the rotary motor (121) is fixedly mounted on the mounting seat (64) via a bracket, the driving wheel (122) is arranged on the output shaft of the rotary motor (121), the driven wheel (123) is arranged on the drill rod (7), and the toothed belt (124) is arranged between the driven wheel (123) and the driving wheel (122).

4. A high-efficiency groundwater quality detection sampling device as claimed in claim 3, characterized in that: The drill bit (71) comprises a base body (711) and a spiral blade (712) arranged outside the base body (711); the sampling holes (73) are multiple and distributed in an annular pattern, and are all arranged in a spiral groove formed between two spiral blades (712).

5. A high-efficiency groundwater quality detection sampling device as claimed in claim 4, characterized in that: A connecting piece (13) is provided between the drainage pipe (9) and the sampling pipe (10), the connecting piece (13) comprising a connecting pipe (131), a first joint (132) arranged at the lower end of the connecting pipe (131), and a second joint (133) arranged at the upper end of the connecting pipe (131); a flow channel is provided inside the connecting pipe (131); the second joint (133) is provided on the connecting pipe (131) via a sealing bearing (135), and an oil seal (134) is also provided on the outside; the second joint (133) and the connecting pipe (131) can rotate relative to each other but cannot move relative to each other; and the first joint (132) and the drainage pipe (9), and the second joint (133) and the sampling pipe (10) are both connected via pipe clamps.

6. A high-efficiency groundwater quality detection sampling device as claimed in claim 5, characterized in that: The sampling structure (11) comprises a sampling box (111), a base (112), a filling pipe (113), and an electromagnetic flow control valve (114); the sampling box (111) is arranged in the middle of the fixing base (3), and the interior thereof is a hollow structure; the base (112) is arranged at the bottom of the sampling box (111), and a slot (115) is provided at the center thereof, and a rubber cotton with an annular structure is provided in the slot (115); the filling pipe (113) is arranged on the side wall of the sampling box (111), and the input end thereof is connected to the sampling pipe (10), and the filling pipe (113) can move up and down; and the electromagnetic flow control valve (114) is arranged on the filling pipe (113).

7. A high-efficiency groundwater quality detection sampling device as claimed in claim 6, characterized in that: A driving member (14) is also provided on one side of the filling pipe (113); the driving member (14) comprises a moving seat (141), a slide rail (142), a fixed block (143), a rotating lead screw (144), a slider (145) and a moving motor (146); the slider (142) is vertically distributed and arranged on the inner wall of the sampling box (111); the moving seat (141) is horizontally distributed; the filling pipe (113) is vertically distributed and fixedly installed on the moving seat (141); the slider (145) is arranged on the moving seat (141); the slider (145) and the slide rail (142) are connected to each other. ) are matched and installed; the fixed block (143) is arranged at the center of the movable seat (141); the side wall of the movable seat (141) is provided with side wing plates (147) distributed up and down, the rotating screw (144) is vertically distributed and passes through the fixed block (143) and is connected with the side wing plates (147) distributed on both sides, the rotating screw (144) and the fixed block (143) are threadedly connected, and the rotating screw (144) and the side wing plates (147) are connected through bearings; the movable motor (146) is arranged on the sampling box (111) through a bracket, and the output shaft is connected to the rotating screw (144).

8. The high-efficiency groundwater quality detection sampling device according to claim 7, characterized in that: The utensil storage structure (4) comprises an utensil storage cavity (41), a partition (42), a sponge card block (43) and an ultraviolet sterilization lamp (44); the utensil storage cavity (41) is arranged on the left side of the fixing seat (3); the partition (42) is a mesh structure, and the partitions (42) are arranged in a crisscross pattern to form a plurality of placement card positions (45), and the placement card positions (45) are arranged in a front-to-back distribution; the sponge card block (43) is adapted to be installed in the placement card position (45), and a mounting groove (46) is provided in the middle thereof, and the cross section of the mounting groove (46) is a trapezoidal structure with a large outer end and a small inner end; the ultraviolet sterilization lamp (44) is fixedly installed on the top of the utensil storage cavity (41) by means of a clamp.

9. A high-efficiency groundwater quality detection sampling device as claimed in claim 8, characterized in that: The sample storage structure (5) comprises a sample storage cavity (51), a bottom plate (52), a placement seat (53), and a cover plate (54); the sample storage cavity (51) is arranged on the right side of the fixing seat (3); the bottom plate (52) is a mesh structure and is arranged at the lower part of the sample storage cavity (51); a refrigeration device (55) is also arranged at the bottom of the sample storage cavity (51) and below the bottom plate (52); the placement seat (53) is made of rubber cotton as a whole and is arranged above the bottom plate (52) to keep the bottom surface of the placement seat (53) smaller than the area of ​​the bottom plate (52); a plurality of placement grooves (56) evenly distributed and suitable for installing groundwater sampling instruments are also arranged in the placement seat (53); one side of the cover plate (54) is hinged to the top side wall of the sample storage cavity (51).

10. The high-efficiency groundwater quality detection sampling device according to claim 9, characterized in that: A temperature sensor (58) is also provided in the sample storage cavity (51), and an LED display screen (57) is also provided on the top surface of the fixing seat (3) located on one side of the sample storage cavity (51); the temperature sensor (58) is electrically connected to the refrigeration device (55) and the LED display screen (57), respectively.

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