Hydrogeological sampling equipment and sampling method

Abstract

The invention relates to the technical field of sampling, in particular to hydrogeological sampling equipment which comprises a moving trolley, two vertical parts of an inverted-U-shaped frame are arranged at the upper end of a trolley plate part of the moving trolley, a moving plate is slidably connected between the two vertical parts of the inverted-U-shaped frame, and a drill bit is rotatably connected to the middle position of the lower end of the moving plate. A vertical part of a T-shaped plate is mounted at the right end of the magnetic plate, a piston is rotatably connected to the right end of a transverse part of the T-shaped plate, a connecting rod is arranged in the middle of the right end of the piston, and a cylinder is arranged at the right end of the connecting rod; the barrel is slidably connected into the sampling holes, the outer end face of the barrel is recessed inwards to form a plurality of V-shaped grooves, the aim of comprehensively sampling the periphery of the drilled hole is achieved through the design, the sampling effect is improved, sampling movement is conducted in the multiple sampling holes, multi-layer sampling is achieved, and the subsequent detection quality is guaranteed.

Description

Technical Field

[0001] The invention relates to hydrogeological sampling equipment and a sampling method, belonging to the technical field of sampling. Background Art

[0002] Hydrogeology is a branch of geology, which refers to the various changes and movements of groundwater in nature. It mainly studies the distribution and formation of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational use, the adverse effects of groundwater on engineering construction and mining and their prevention and control, etc. In order to find out the hydrogeological conditions of a region, the hydrogeology of this region will be investigated and studied. Generally, hydrogeological sampling equipment is used to take samples, and the samples can be tested to meet the research on the corresponding hydrogeology. In the prior art, the hydrogeological sampling equipment generally adopts a mobile trolley, a frame installed on the mobile trolley, a lifting device fixedly arranged on the frame, a driving device connected to the movable part of the lifting device, a drill bit connected to the movable part of the driving device and having multiple hollow cavities, a plurality of inlet pipes arranged on the lower side of the outer end of the drill bit and connected to the hollow cavity of the drill bit and with a control valve, and a plurality of inlet pipes arranged on the upper side of the outer end of the drill bit and connected to the multiple hollow inner cavities of the drill bit and with a control valve. The air pipe is composed of the following steps: when in use, the mobile trolley is first moved to the predetermined position, and then the driving device is used to rotate the drill bit, and the lifting device is used to move the driving device and the rotating drill bit downward, so as to realize the drilling operation of the hydrogeology. When the drill bit moves downward to the predetermined position of the hydrogeology, the inlet pipe is located in the drilled hole, and the multiple hollow cavities of the drill bit are evacuated through the air pipe to generate negative pressure in the multiple hollow cavities of the drill bit, and the control valve on the inlet pipe is opened. Under the action of negative pressure, samples at different positions of the drilled hole wall enter the inner cavity of the drill bit along different multiple inlet pipes, so as to realize direct multi-layer sampling operation. After drilling a hole of suitable depth, the drill bit stops rotating. At this time, sampling operation is performed on a single point position at the same depth position. In order to avoid the inlet pipe affecting the drilling operation, the inlet pipe is installed in the cut groove of the drill bit. The hydrogeology itself is relatively soft, and it is easy for the material above the drilled hole to move down along the cut groove of the drill bit and be sampled, which will affect the sampling effect and cause poor quality of subsequent detection.

[0003] SUMMARY OF THE INVENTION

[0004] In view of the problems in the prior art, the present invention provides a hydrogeological sampling device and a sampling method.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a hydrogeological sampling equipment, comprising a mobile trolley, wherein the upper end of the vehicle plate portion of the mobile trolley is provided with two vertical parts of an inverted U-shaped frame, the upper end surface of the vehicle plate portion of the mobile trolley is recessed downward to form a through opening and the through opening extends to the lower end of the vehicle plate portion of the mobile trolley, the through opening is located between the two vertical parts of the inverted U-shaped frame, and the two vertical parts of the inverted U-shaped frame are slidably connected to the mobile plate, the upper end of the mobile plate is installed with a driving member, the middle position of the lower end of the mobile plate is rotatably connected to a vertically arranged drill bit and the drill bit is located just above the through opening, the drill bit passes through the mobile plate and is connected to the driving member, the right end surface of the drill bit is recessed to the left to form a plurality of sampling holes, an electromagnet is arranged on the left wall inside the sampling hole, a magnetic plate is arranged on the right side of the electromagnet and the magnetic plate and the electromagnet are arranged to repel each other, the vertical part of a T-shaped plate is installed on the right end of the magnetic plate, and the right end of the transverse part of the T-shaped plate is rotatably connected to a piston and movable The plug is slidably connected in the sampling hole, and a plurality of elastic members arranged in a circle are equidistantly arranged between the left end of the vertical portion of the T-shaped plate and the left inner wall of the sampling hole, and the elastic members are located on the outside of the electromagnet and the magnetic plate, a rotating member is installed between the left end of the piston and the right inner wall of the sampling hole, and a T-shaped plate is arranged on the inner side of the rotating member, a horizontally arranged connecting rod is arranged in the middle position of the right end of the piston, a cylinder is arranged at the right end of the connecting rod, and the right end of the connecting rod extends to the right inner wall of the cylinder, the cylinder is slidably connected in the sampling hole and the cylinder is located on the right side of the piston, a rotating cutter head is installed at the right end of the cylinder and the rotating cutter head is located in the sampling hole, the outer end surface of the cylinder is recessed inwardly to form a plurality of V-grooves arranged with a wide outside and a narrow inside, and the V-grooves extend to the inner wall of the cylinder, the V-grooves extend to the left end of the cylinder, the outer end surface of the cylinder is recessed inwardly to form a plurality of annular grooves, and the annular grooves are located on the right side of the V-grooves, a sealing member is assembled on the annular groove and the sealing member fits on the inner wall of the sampling hole.

[0006] Furthermore, the rotating part includes an outer cylinder and an inner cylinder, the outer cylinder is arranged at the left end of the piston, the inner cylinder is arranged on the left wall inside the sampling hole and the inner cylinder is located on the left side of the piston, the inner cylinder is located in the outer cylinder, the T-shaped plate is located in the inner cylinder, the outer end surface of the inner cylinder is recessed inward to form a spiral groove, and the fixed parts of multiple rolling components arranged in an arc shape are equidistantly arranged at the left edge of the inner wall of the outer cylinder, and the rolling parts of the multiple rolling components are all rollingly connected to the spiral groove.

[0007] Furthermore, a plurality of first guide members arranged in a circular shape are equidistantly disposed between the left end of the vertical portion of the T-shaped plate and the left inner wall of the sampling hole, and the first guide members are located inside the elastic member.

[0008] Furthermore, a second power supply is arranged at the upper edge of the right end of the drill bit, the second power supply is located at the lower side of the movable plate, and the second power supply is located above the sampling hole, the second power supply is electrically connected to the electromagnet, a controller is arranged at the right end of the second power supply, and the controller is electrically connected to the second power supply and the electromagnet respectively.

[0009] Furthermore, the driving member includes a driving device, a fixed part of the driving device is installed in the middle position of the upper end of the movable plate, the movable part of the driving device passes through the movable plate and is connected to the drill bit, the fixed part of the lifting device is arranged on the upper end of the inverted U-shaped frame, the movable part of the lifting device passes through the inverted U-shaped frame and is connected to the movable plate, and the lifting device is located at the front side of the driving device, the upper end of the inverted U-shaped frame is slidably connected to a vertically arranged round rod, and the lower end of the round rod passes through the inverted U-shaped frame and is connected to the movable plate, and the round rod is located at the rear side of the driving device.

[0010] Furthermore, a first power supply is installed on the upper end of the inverted U-shaped frame and is located between the round rod and the lifting device. The first power supply is electrically connected to the driving device and the lifting device respectively.

[0011] Furthermore, a mudguard is installed on the upper end of the vehicle plate portion of the mobile trolley and is located at the left end of the inverted U-shaped frame. The upper end of the vehicle plate portion of the mobile trolley is symmetrically slidably connected to two door panels. The two door panels fit each other and are connected by flat-mouth buckles. The outward ends of the two door panels are respectively hinged on the right ends of the two vertical portions of the inverted U-shaped frame.

[0012] Furthermore, a storage box for storing containers is installed on the upper end of the vehicle board of the mobile vehicle, and the storage box is located on the left side of the fender.

[0013] A sampling method for a hydrogeological sampling device comprises the following steps:

[0014] The first step is preparation, placing multiple empty containers in the storage box, and pushing the mobile trolley to move it to the predetermined position;

[0015] The second step is drilling. The lifting device and the driving device are started. The lifting device will move the moving plate downward, and then the driving device and the drill bit will move downward. The driving device will drive the drill bit to rotate, and the downward rotating drill bit will perform hydrogeological drilling operations.

[0016] The third step is sampling. When the drill bit drills to a predetermined depth, the lifting device and the driving device are turned off, and then the circuit between the multiple electromagnets and the second power supply is connected, so that a repulsive force is generated between the electromagnet and the magnetic plate. Under the action of the repulsive force, the rotating cutter head, the cylinder, the connecting rod, the outer cylinder, the piston and the T-shaped plate are moved outward, and the elastic member is stretched. The movement of the outer cylinder causes the rolling part of the rolling member to roll along the spiral groove, which causes the outer cylinder to rotate, and causes the piston, the connecting rod, the rotating cutter head and the cylinder to rotate. The rotating cutter head can be used to punch holes in the drilled hole wall, and then the cylinder body enters the punched hole. The driving device is used again to rotate the drill bit, and the V-shaped groove on the cylinder body will sample the drilled hole wall all around. Then the circuit between the multiple electromagnets and the second power supply is disconnected, and the cylinder body and the rotating cutter head are returned to the sampling hole through the elastic force of the elastic member.

[0017] The fourth step is sampling. The drill bit is moved up and returned to its original position through the lifting device, and then the door panel is opened. A container is taken out from the storage box and placed under a sampling hole. The circuit between the corresponding electromagnet and the second power supply is independently connected, so that the corresponding cylinder is completely removed from the sampling hole, and the sample in the cylinder is moved into the container. Same as the above steps, different containers are used to store samples in multiple sampling holes, thereby realizing multi-layer sampling, and the containers storing the samples are stored back in the storage box.

[0018] Beneficial effects of the present invention:

[0019] (1) A hydrogeological sampling device of the present invention uses a barrel to seal the opening of the sampling hole, which can prevent the soil in the hydrogeology from entering the sampling hole, effectively reduce the cross-mixing between soils at different depths, and effectively reduce the contamination of the collected samples by other soils, thereby ensuring the sampling quality. The repulsive force between the electromagnet and the magnetic plate causes the magnetic plate, T-shaped plate, piston, connecting rod and barrel to move outward, so that the barrel is partially moved out of the sampling hole and pressurizes the inner wall of the drilled hole to produce a hole, and the V-shaped groove on the barrel is partially located in the hole. The servo motor is then used to rotate the drill bit and the barrel, and the barrel applies an extrusion force to the inner wall of the hole. Under the action of the extrusion force and the rotational motion, the soil within a circle of the drilled hole enters the barrel through the V-shaped groove, thereby achieving the purpose of comprehensive sampling around the drilled hole and improving the sampling effect. In addition, sampling motion is performed in multiple sampling holes to achieve multi-layer sampling, thereby ensuring the quality of subsequent detection.

[0020] (2) In the hydrogeological sampling equipment of the present invention, two door panels, a mudguard and two vertical parts of an inverted U-shaped frame form a hollow structure, and the drill bit performs drilling operations in the space of the hollow structure, thereby blocking the mud generated by the drilling, effectively preventing the mud from splashing randomly, and having good environmental protection.

[0021] (3) In a hydrogeological sampling device of the present invention, when the piston moves outward along the sampling hole, the outer cylinder moves outward, thereby causing the rolling parts of the multiple bull's eye balls to move along the spiral groove, thereby causing the outer cylinder, the piston, the connecting rod, the cylinder body and the rotating cutter head to rotate, thereby assisting the drilling operation of the hole wall, facilitating subsequent sampling operations, and solving the problem of the subsequent hole drilling being affected by the compression of the hole wall caused by the drilling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 It is a structural schematic diagram of a hydrogeological sampling device of the present invention;

[0024] Figure 2 A three-dimensional diagram of a hydrogeological sampling device of the present invention;

[0025] Figure 3 It is a front view of a hydrogeological sampling device of the present invention;

[0026] Figure 4 A cross-sectional view of a hydrogeological sampling device of the present invention;

[0027] Figure 5 A three-dimensional diagram of a mobile vehicle in a hydrogeological sampling device of the present invention;

[0028] Figure 6 A three-dimensional diagram of a drill bit in a hydrogeological sampling device of the present invention;

[0029] Figure 7 A cross-sectional view of a drill bit in a hydrogeological sampling device of the present invention;

[0030] Figure 8 It is an assembly diagram of a rotating cutter head and a barrel in a hydrogeological sampling device of the present invention;

[0031] Fig. 9 It is a schematic diagram of a cylinder in a hydrogeological sampling device of the present invention;

[0032] Fig.10 A three-dimensional diagram of an inner cylinder in a hydrogeological sampling device of the present invention;

[0033] Fig.11 The present invention is a cross-sectional view of an outer cylinder in a hydrogeological sampling device.

[0034] In the figure: 1. mobile trolley, 2. inverted U-shaped frame, 3. electric push rod, 4. servo motor, 5. mobile plate, 6. drill bit, 7. sampling hole, 11. storage box, 12. through port, 21. door panel, 22. first power supply, 23. fender, 51. round rod, 61. controller, 62. second power supply, 71. rotating cutter head, 72. cylinder, 73. connecting rod, 74. V-shaped groove, 75. piston, 76. outer cylinder, 77. T-shaped plate, 78. inner cylinder, 79. elastic member, 721. O-ring, 761. bull's eyeball, 771. magnetic plate, 772. electromagnet, 781. spiral groove. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The present invention provides a technical solution: a hydrogeological sampling device, comprising a mobile trolley 1, wherein the two vertical parts of the inverted U-shaped frame 2 are both arranged on the upper end of the vehicle plate of the mobile trolley 1, and the upper end surface of the vehicle plate of the mobile trolley 1 is recessed downward to form a through hole 12 extending to the lower end of the vehicle plate of the mobile trolley 1 and located between the two vertical parts of the inverted U-shaped frame 2, and the mobile plate 5 is slidably connected between the two vertical parts of the inverted U-shaped frame 2, and the drill bit 6 located on the upper side of the through hole 12 and arranged vertically is rotatably connected to the middle position of the lower end of the mobile plate 5, and then the first power supply 22 located between the round rod 51 and the lifting device and electrically connected to the driving device and the lifting device respectively is installed on the upper end of the inverted U-shaped frame 2, and the first power supply 22 is used to provide power to the lifting device and the driving device. When in use, first move the mobile trolley 1 to the predetermined position, then start the driving device whose fixed part is installed in the middle position of the upper end of the moving plate 5, thereby driving the drill bit 6 connected to the movable part of the driving device passing through the moving plate 5 to rotate, and then start the lifting device whose fixed part is set at the upper end of the inverted U-shaped frame 2 and is located in front of the driving device, thereby driving the moving plate 5 connected to the movable part of the lifting device passing through the inverted U-shaped frame 2 to move downward, so that the driving device and the rotating drill bit 6 move downward to realize the drilling operation, and the lower end of the round rod 51 located at the rear side of the driving device and slidably connected to the upper end of the inverted U-shaped frame 2 and arranged vertically passes through the inverted U-shaped frame 2 and is connected to the moving plate 5, and the movement of the moving plate 5 is guided by the round rod 51, wherein the driving device can adopt a servo motor 4, and the lifting device can adopt an electric push rod 3.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the fender 23 located at the left end of the inverted U-shaped frame 2 is installed on the upper end of the vehicle plate portion of the mobile trolley 1, and the two door panels 21 that are symmetrically slidably connected to the upper end of the vehicle plate portion of the mobile trolley 1 and fit each other are connected through a flat-mouth buckle, and then the two door panels 21 are hinged to the right ends of the two vertical portions of the inverted U-shaped frame 2 at the outer ends through hinges, and the two door panels 21, the fender 23 and the two vertical portions of the inverted U-shaped frame 2 form a hollow structure, and the drill bit 6 performs drilling operations in the space of the hollow structure to achieve The mud generated by drilling is blocked to effectively prevent the mud from splashing randomly, which is environmentally friendly. The storage box 11 located on the left side of the mudguard 23 is installed on the upper end of the vehicle board of the mobile vehicle 1. The storage box 11 is used to store the containers. When in use, the flat-mouth buckle can be opened, and the door panel 21 can be opened to expose the drill bit 6, and then the empty container can be taken out from the storage box 11, and the container can be used to store the samples taken out from the drilling hole, and then the container storing the sample can be stored back into the storage box 11.

[0038] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, a plurality of sampling holes 7 are formed by being recessed to the left on the right end surface of the drill bit 6. The plurality of sampling holes 7 are used together for multi-layer sampling operations. The electromagnet 772 is set on the left wall inside the sampling hole 7, and the vertical portion of the T-shaped plate 77 is installed on the right end of the magnetic plate 771 which is arranged to repel each other with the electromagnet 772 and is located on the right side of the electromagnet 772. Then, the piston 75 which is slidably connected in the sampling hole 7 is rotatably connected to the right end of the horizontal portion of the T-shaped plate 77. Through the piston 75, a sealed space is formed on the left side of the piston 75 in the sampling hole 7. On the one hand, the components on the left side of the piston 75 are protected, and on the other hand, negative pressure can be generated to assist The piston 75 returns to its original position, and a plurality of elastic members 79 arranged in a circular shape and located outside the electromagnet 772 and the magnetic plate 771 are equidistantly arranged between the left end of the vertical portion of the T-shaped plate 77 and the left wall inside the sampling hole 7. The plurality of elastic members 79 are used in combination to return the T-shaped plate 77 and other components to their original positions, which is convenient for subsequent operations. The right end of the connecting rod 73 arranged in a transverse manner and set at the middle position of the right end of the piston 75 is extended to the right wall inside the cylinder 72 and connected to the cylinder 72, and the cylinder 72 located on the right side of the piston 75 is slidably connected to the sampling hole 7, and a plurality of elastic members 79 extending to the inner wall of the cylinder 72 and extending to the cylinder 72 are formed on the outer end surface of the cylinder 72. The left end of the cylinder 72 is provided with a V-shaped groove 74 which is wide outside and narrow inside. The multiple V-shaped grooves 74 are used in conjunction with the cylinder 72 to scrape hydrogeology and collect samples. The outer end surface of the cylinder 72 is recessed inward to form multiple annular grooves located on the right side of the V-shaped groove 74. The sealing member attached to the inner wall of the sampling hole 7 is assembled on the annular groove to make the cylinder 72 and the sampling hole 7 sealed and connected. The opening of the sampling hole 7 can be blocked to avoid contamination of the collected samples. The multiple first guide members arranged in a circular shape and located on the inner side of the elastic member 79 are equidistantly arranged between the left end of the vertical portion of the T-shaped plate 77 and the left inner wall of the sampling hole 7. The parts can be used in conjunction with each other to guide the movement of the T-shaped plate 77, and the second power supply 62 located on the lower side of the movable plate 5 and above the sampling hole 7 and electrically connected to the electromagnet 772 is set to the upper edge of the right end of the drill bit 6, and the electromagnet 772 is provided with electric energy through the second power supply 62, and the controller 61 electrically connected to the second power supply 62 and the electromagnet 772 respectively is set to the right end of the second power supply 62, and the circuit between the second power supply 62 and the electromagnet 772 is controlled to be closed through the controller 61, wherein the elastic member 79 can be a spring, the sealing member can be an O-ring 721, and the first guide member can be a telescopic rod.

[0039] During the drilling process using the drill bit 6, the cylinder 72 will block the opening of the sampling hole 7, which can prevent the soil in the hydrogeology from entering the sampling hole 7, and effectively reduce the cross-mixing between the soils at different depths. When the drill bit 6 drills into the predetermined depth of the hydrogeology, the controller 61 connects the circuits between the multiple electromagnets 772 and the second power supply 62, so that a repulsive force is generated between the electromagnet 772 and the magnetic plate 771, and the repulsive force causes the magnetic plate 771 to move outward, thereby The T-shaped plate 77 is moved outwards, on the one hand, the elastic member 79 is stretched to generate elastic force, and on the other hand, the piston 75 is moved outwards along the sampling hole 7, so that negative pressure is generated in the space on the left side of the piston 75 in the sampling hole 7, thereby moving the connecting rod 73 and the cylinder 72 outwards, so that the cylinder 72 is partially moved out of the sampling hole 7 and exerts pressure on the inner wall of the drilled hole to generate a hole, and a part of the V-shaped groove 74 on the cylinder 72 is located in the hole, and then the cylinder 72 is started again. The driving device is driven to rotate the drill bit 6 by 360°, and then the barrel 72 rotates with the rotation of the drill bit 6, and the barrel 72 applies an extrusion force to the inner wall of the hole, and under the action of the extrusion force and the rotational movement, the soil within a circle of the drilled hole enters the barrel 72 through the V-shaped groove 74, so as to achieve the purpose of comprehensive sampling around the drilled hole and improve the sampling effect. In addition, sampling movement is performed in multiple sampling holes 7 to achieve multi-layer sampling and ensure the quality of subsequent detection. After the sample is collected, the circuit between the multiple electromagnets 772 and the second power supply 62 is disconnected, and the T-shaped plate 77, the piston 75, the connecting rod 73 and the barrel 72 can be returned to their original positions under the elastic force of the elastic member 79 and the negative pressure. At this time, the sample collected in the barrel 72 is collected into the sampling hole 7, and the barrel 72 re-blocks the opening of the sampling hole 7, thereby preventing soil at other depths in the hydrogeology from entering the sampling hole 7, effectively reducing the contamination of the collected samples by other soils, and ensuring the sampling quality.

[0040] like Figure 7 , Figure 8 , Fig.10 and Fig.11As shown, the rotating cutter head 71 located in the sampling hole 7 is installed on the right end of the cylinder 72. The secondary drilling operation is realized by rotating the cutter head 71. The fixing parts of the plurality of rolling members arranged in an arc are equidistantly arranged on the left edge of the inner wall of the outer cylinder 76 located outside the inner cylinder 78 and arranged on the left end of the piston 75. The outer end surface of the inner cylinder 78 arranged on the left wall inside the sampling hole 7 and located on the left side of the piston 75 and outside the T-shaped plate 77 is inwardly recessed to form a spiral groove 781, and the rolling parts of the plurality of rolling members are all rollingly connected to the spiral groove 781. In the process of the piston 75 moving outward along the sampling hole 7, the outer cylinder 76 will move outward, and then the rolling parts of the multiple rolling components will move along the spiral groove 781, so that the outer cylinder 76 will rotate, and then the piston 75, the connecting rod 73, and the cylinder 72 will rotate, so that the rotating cutter head 71 will rotate, and then the drilling operation of the hole wall will be assisted, which is convenient for subsequent sampling operations and solves the problem that the drilling operation causes the hole wall to be compressed and affects the subsequent drilling of holes. The rolling component can be a bull's eye 761.

[0041] A sampling method for a hydrogeological sampling device comprises the following steps:

[0042] The first step is preparation, placing a plurality of empty containers in the storage box 11, and pushing the mobile trolley 1 to move the mobile trolley 1 to a predetermined position;

[0043] The second step is drilling. The electric push rod 3 and the servo motor 4 are started. The electric push rod 3 moves the moving plate 5 downward, and then the servo motor 4 and the drill bit 6 move downward. The servo motor 4 drives the drill bit 6 to rotate, and the downward rotating drill bit 6 performs the drilling operation in the hydrogeology;

[0044] The third step is sampling. When the drill bit 6 drills to a predetermined depth, the electric push rod 3 and the servo motor 4 are turned off, and then the circuit between the multiple electromagnets 772 and the second power supply 62 is turned on, so that a repulsive force is generated between the electromagnets 772 and the magnetic plate 771. Under the action of the repulsive force, the rotary cutter head 71, the cylinder 72, the connecting rod 73, the outer cylinder 76, the piston 75 and the T-shaped plate 77 move outward, and the elastic member 79 is stretched. The movement of the outer cylinder 76 causes the rolling part of the rolling member to roll along the spiral groove 781, which makes The outer cylinder 76 rotates to rotate the piston 75, the connecting rod 73, the rotary cutter head 71 and the cylinder body 72. The rotary cutter head 71 can be used to punch holes in the drilled hole wall, and then the cylinder body 72 enters the punched hole. The servo motor 4 is used again to rotate the drill bit 6, and the V-shaped groove 74 on the cylinder body 72 will sample the drilled hole wall around. Then, the circuit between the multiple electromagnets 772 and the second power supply 62 is disconnected, and the cylinder body 72 and the rotary cutter head 71 are returned to the sampling hole 7 through the elastic force of the elastic member 79.

[0045] The fourth step is sampling. The drill bit 6 is moved up and returned to its original position through the electric push rod 3, and then the door panel 21 is opened, and a container is taken out from the storage box 11, and the container is placed under a sampling hole 7. Then the circuit between the corresponding electromagnet 772 and the second power supply 62 is independently connected, so that the corresponding cylinder 72 is completely removed from the sampling hole 7, and the sample in the cylinder 72 is moved into the container. In the same way as the above steps, different containers are used to store samples in multiple sampling holes 7, thereby realizing multi-layer sampling, and the containers storing the samples are stored back in the storage box 11.

[0046] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydrogeological sampling device, characterized in that: The invention comprises a movable vehicle (1), wherein the upper end of the vehicle plate of the movable vehicle (1) is provided with two vertical parts of an inverted U-shaped frame (2), the upper end surface of the vehicle plate of the movable vehicle (1) is recessed downward to form a through-hole (12), and the through-hole (12) extends to the lower end of the vehicle plate of the movable vehicle (1), the through-hole (12) is located between the two vertical parts of the inverted U-shaped frame (2), a movable plate (5) is slidably connected between the two vertical parts of the inverted U-shaped frame (2), a driving member is installed at the upper end of the movable plate (5), and a drill bit (6) arranged vertically is rotatably connected at the middle position of the lower end of the movable plate (5), and the drill bit (6) is located at the through-hole ( 12), the drill bit (6) passes through the movable plate (5) and is connected to the driving member, the right end surface of the drill bit (6) is recessed to the left to form a plurality of sampling holes (7), an electromagnet (772) is arranged on the left wall inside the sampling hole (7), a magnetic plate (771) is arranged on the right side of the electromagnet (772), and the magnetic plate (771) and the electromagnet (772) are arranged to repel each other, the vertical part of the T-shaped plate (77) is installed on the right end of the magnetic plate (771), the right end of the transverse part of the T-shaped plate (77) is rotatably connected to the piston (75), and the piston (75) is slidably connected in the sampling hole (7), and the T-shaped plate (77) A plurality of elastic members (79) arranged in a circular shape are equidistantly arranged between the left end of the vertical portion and the left inner wall of the sampling hole (7), and the elastic members (79) are located outside the electromagnet (772) and the magnetic plate (771). A rotating member is installed between the left end of the piston (75) and the right inner wall of the sampling hole (7), and a T-shaped plate (77) is arranged inside the rotating member. A transversely arranged connecting rod (73) is arranged at the middle position of the right end of the piston (75). A cylinder (72) is arranged at the right end of the connecting rod (73), and the right end of the connecting rod (73) extends to the right inner wall of the cylinder (72). The cylinder (72) is slidably connected to the sampling hole. (7) and the cylinder (72) is located on the right side of the piston (75), a rotating cutter head (71) is installed on the right end of the cylinder (72) and the rotating cutter head (71) is located in the sampling hole (7), the outer end surface of the cylinder (72) is recessed inward to form a plurality of V-shaped grooves (74) arranged with a wide outside and a narrow inside, and the V-shaped grooves (74) extend to the inner wall of the cylinder (72), the V-shaped grooves (74) extend to the left end of the cylinder (72), the outer end surface of the cylinder (72) is recessed inward to form a plurality of annular grooves, and the annular grooves are located on the right side of the V-shaped grooves (74), and a sealing member is mounted on the annular groove and the sealing member is attached to the inner wall of the sampling hole (7).

2. A hydrogeological sampling device according to claim 1, characterized in that: The rotating member comprises an outer cylinder (76) and an inner cylinder (78), wherein the outer cylinder (76) is arranged at the left end of the piston (75), the inner cylinder (78) is arranged on the left wall inside the sampling hole (7) and the inner cylinder (78) is located on the left side of the piston (75), the inner cylinder (78) is located inside the outer cylinder (76), the T-shaped plate (77) is located inside the inner cylinder (78), the outer end surface of the inner cylinder (78) is recessed inward to form a spiral groove (781), and the fixed parts of a plurality of rolling components arranged in an arc shape are equidistantly arranged at the left edge of the inner wall of the outer cylinder (76), and the rolling parts of the plurality of rolling components are all rollingly connected to the spiral groove (781).

3. A hydrogeological sampling device according to claim 1, characterized in that: A plurality of first guide members arranged in a circular pattern are equidistantly disposed between the left end of the vertical portion of the T-shaped plate (77) and the left inner wall of the sampling hole (7), and the first guide members are located inside the elastic member (79).

4. A hydrogeological sampling device according to claim 1, characterized in that: A second power supply (62) is arranged at the upper edge of the right end of the drill bit (6), the second power supply (62) is located at the lower side of the movable plate (5), and the second power supply (62) is located above the sampling hole (7), the second power supply (62) is electrically connected to the electromagnet (772), a controller (61) is arranged at the right end of the second power supply (62), and the controller (61) is electrically connected to the second power supply (62) and the electromagnet (772), respectively.

5. A hydrogeological sampling device according to claim 1, characterized in that: The driving member comprises a driving device, wherein a fixed portion of the driving device is installed at a middle position of the upper end of the moving plate (5), a movable portion of the driving device passes through the moving plate (5) and is connected to the drill bit (6), a fixed portion of a lifting device is arranged at the upper end of the inverted U-shaped frame (2), a movable portion of the lifting device passes through the inverted U-shaped frame (2) and is connected to the moving plate (5), and the lifting device is located at the front side of the driving device, the upper end of the inverted U-shaped frame (2) is slidably connected to a vertically arranged round rod (51), and the lower end of the round rod (51) passes through the inverted U-shaped frame (2) and is connected to the moving plate (5), and the round rod (51) is located at the rear side of the driving device.

6. A hydrogeological sampling device according to claim 5, characterized in that: A first power supply (22) is installed on the upper end of the inverted U-shaped frame (2) and is located between the round rod (51) and the lifting device. The first power supply (22) is electrically connected to the driving device and the lifting device respectively.

7. A hydrogeological sampling device according to claim 1, characterized in that: A fender (23) is installed at the upper end of the vehicle plate portion of the mobile trolley (1), and the fender (23) is located at the left end of the inverted U-shaped frame (2). The upper end of the vehicle plate portion of the mobile trolley (1) is symmetrically slidably connected to two door panels (21). The two door panels (21) are fitted to each other and connected by a flat-mouth buckle. The outward ends of the two door panels (21) are respectively hinged to the right ends of the two vertical portions of the inverted U-shaped frame (2).

8. A hydrogeological sampling device according to claim 7, characterized in that: A storage box (11) for storing containers is installed on the upper end of the vehicle board of the mobile vehicle (1), and the storage box (11) is located on the left side of the fender (23).

9. A sampling method for hydrogeological sampling equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: The first step is preparation work, placing a plurality of empty containers in the storage box (11), and pushing the mobile trolley (1) to move the mobile trolley (1) to a predetermined position; The second step is drilling. The lifting device and the driving device are started. The lifting device will move the movable plate (5) downward, thereby moving the driving device and the drill bit (6) downward. The driving device will drive the drill bit (6) to rotate, and the downward rotating drill bit (6) will perform a drilling operation in a hydrogeological manner. The third step is sampling. When the drill bit (6) drills to a predetermined depth, the lifting device and the driving device are turned off, and then the circuit between the plurality of electromagnets (772) and the second power supply (62) is connected, so that a repulsive force is generated between the electromagnets (772) and the magnetic plate (771). Under the action of the repulsive force, the rotating cutter head (71), the cylinder (72), the connecting rod (73), the outer cylinder (76), the piston (75) and the T-shaped plate (77) move outward, and the elastic member (79) is stretched. The movement of the outer cylinder (76) causes the rolling portion of the rolling member to roll along the spiral groove (781), so that the outer cylinder ( 76) rotates to rotate the piston (75), the connecting rod (73), the rotating cutter head (71) and the cylinder (72), and the rotating cutter head (71) can be used to punch holes in the drilled hole wall, so that the cylinder (72) enters the punched hole, and the driving device is used again to rotate the drill bit (6), and the V-shaped groove (74) on the cylinder (72) will sample the surrounding of the drilled hole wall, and then the circuit between the multiple electromagnets (772) and the second power supply (62) is disconnected, and the cylinder (72) and the rotating cutter head (71) are returned to the sampling hole (7) through the elastic force of the elastic member (79); The fourth step is sampling. The drill bit (6) is moved up and returned to its original position by means of a lifting device. The door panel (21) is then opened and a container is taken out from the storage box (11). The container is placed under a sampling hole (7). The circuit between the corresponding electromagnet (772) and the second power supply (62) is then independently connected, so that the corresponding cylinder (72) is completely removed from the sampling hole (7), and the sample in the cylinder (72) is moved into the container. In the same manner as the above steps, different containers are used to store samples in multiple sampling holes (7), thereby achieving multi-layer sampling, and the containers storing the samples are stored back in the storage box (11).

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