Water resource sampling and analyzing device for water conservancy project

Abstract

The invention discloses a water resource sampling analysis device for hydraulic engineering, which comprises an equipment shell, a chuck, a protective cover and a rotating wheel, a sealing mechanism is arranged in the equipment shell, the sealing mechanism comprises a rotating lead screw, one end of the rotating lead screw is fixedly connected with a limiting disc, and a sliding groove matched with the limiting disc is formed in the chuck. The outer side of the limiting disc is sleeved with a spline groove bevel gear, one side of the spline groove bevel gear is meshed with a first bevel gear, and the first bevel gear is rotationally connected with the equipment shell through a bearing seat; layered isolation during deep underground water sampling is achieved through the sealing mechanism, a lead screw is rotated to drive a movable block to move downwards along a limiting rod to extrude a sealing air bag, layer mixing of water bodies of different depths is effectively blocked, drilling fluid, rock stratum chippings and the like are prevented from interfering a target aquifer water sample, and it is ensured that the obtained water sample can truly reflect the current underground water quality state; the problem of detection result distortion caused by water body cross contamination during sampling of a traditional device is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water resource sampling and detection, and particularly relates to a water resource sampling and analyzing device for water conservancy projects. BACKGROUND

[0002] In the field of water conservancy projects, deep groundwater as important strategic water resources plays an irreplaceable role in regional water supply guarantee, ecological environment maintenance and engineering construction safety assessment, and the water quality and water quantity conditions of the deep groundwater directly affect the design planning, operation management and sustainable utilization decision of the water conservancy project.

[0003] However, in the existing deep groundwater sampling, the well is directly sampled after drilling, so that the drilling fluid and rock debris remaining in the well pipe are mixed with the target aquifer water body to form an "old water sample", which cannot reflect the real water quality state of the current groundwater, so the well flushing operation is performed on the deep groundwater, and then the sampling is performed after the well flushing, which affects the timeliness of the well flushing effect, causes the sample and the actual water layer detection result to deviate, and the existing device is prone to cause the mixing of water bodies at different depths during sampling, especially in the interactive area of confined water and phreatic water, the key indexes such as the pollutant concentration and ion composition in the water sample are distorted, and it is difficult to identify the hydrological characteristics of each aquifer.

[0004] Therefore, the application provides a water resource sampling and analyzing device for water conservancy projects. SUMMARY

[0005] The application aims to provide a water resource sampling and analyzing device for water conservancy projects, so as to solve the problems that the sampling after the well flushing affects the timeliness of the well flushing effect, causes the sample and the actual water layer detection result to deviate, and the existing device is prone to cause the mixing of water bodies at different depths during sampling.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a water resource sampling and analyzing device for water conservancy projects, comprising a device shell, a chuck, a protective cover and a rotating wheel, The device shell is internally provided with a sealing mechanism, the sealing mechanism comprises a rotating screw, one end of the rotating screw is fixedly connected with a limiting disc, the inside of the chuck is provided with a sliding groove matched with the limiting disc, the outside of the limiting disc is provided with a spline taper gear, one side of the spline taper gear is engaged with a bevel gear one, the bevel gear one is rotatably connected with the device shell through a bearing seat, a ball nut pair is matched on the rotating screw, the outside of the ball nut pair is connected with a movable block, the movable block is connected with a sealing air ring, and the middle position of the device shell is provided with a sealing air bag, the movable block is matched with the sealing air bag, so that the device shell rotates to drive the movable block to move downward until the movable block is attached to the sealing air bag, the movable block extrudes the sealing air bag to be closely attached to the inner wall of the hole or the well wall, so as to separate the upper and lower water layers, the sealing mechanism further comprises a spline shaft, one end of the spline shaft is movably connected with a spline arc groove bevel gear, the spline shaft is fixedly connected with the rotating screw, so that when the rotating screw is rotated to closely attach the movable block to the sealing air bag, the rotating screw is continuously rotated, because the movable block is fixedly connected with the sealing air bag, at this time, the rotating screw is rotated through the sliding groove formed in the inside of the chuck, because the limiting disc is movably connected with the spline taper gear through the spline, when the rotating screw is further rotated, the rotating screw will move downward until the spline arc groove bevel gear at the end of the rotating screw is engaged and connected with the bevel gear two at the bottom. The device shell is further provided with a well washing mechanism and a sampling mechanism, the well washing mechanism comprises a well washing pump, the bottom of the well washing pump is fixedly connected with a pump body, the pump body is provided with a piston, the piston is connected with a cam through a connecting rod, the cam is movably connected with a rotating rod, one end of the cam is provided with a rotating gear, the other end of the cam is fixedly connected with a bevel gear two, the rotating gear is engaged with a rack, the rack is slidably connected with the well washing pump, the water inlet end of the pump body is connected with a water inlet valve, the water outlet end is connected with a three-way valve, one outlet of the three-way valve is communicated to the outside of the pump body, the other outlet is connected to the sampling mechanism, so that when the spline arc groove bevel gear is engaged with the bevel gear two, the rotating screw is rotated to drive the bevel gear two to rotate, the bevel gear two is rotated to drive the cam to rotate, at the same time, the cam drives the piston to continuously enter and exit the water to wash the well, at the same time, the cam drives the rotating gear to rotate, when the rotating gear moves the rack upward to a specific position, the three-way valve is switched through the connecting rod movably connected at the end of the rack, the water outlet of the pump body is communicated with the sampling mechanism to sample.

[0007] Preferably, the device shell is provided with a clamping mechanism outside, the clamping mechanism comprises a fixed disc, the fixed disc is fixedly connected with the device shell, the fixed disc is rotatably connected with a locking gear, the outside of the locking gear is engaged with a tooth ring, the tooth ring is circumferentially distributed with a clamping jaw, the clamping jaw is hinged with the fixed disc and the end portion extends to the outside of the device shell, the clamping mechanism further comprises an upper cover, the upper cover is detachably connected with the fixed disc, the inside of the upper cover is provided with a guide groove matched with the tooth ring, and the tooth ring is circumferentially rotated along the guide groove.

[0008] Preferably, the well washing pump is fixedly connected with a movable pipe, the movable pipe is slidably connected with the spline shaft, and a plurality of balls are movably connected to the opposite surfaces of the spline arc slot bevel gear and the movable pipe, so that when the spline arc slot bevel gear is engaged with the bevel gear two, the rotation of the lead screw drives the spline shaft to rotate through the spline connection between the spline shaft and the spline arc slot bevel gear, and further rotation of the lead screw will slide towards the inside of the movable pipe without interfering with the engagement of the spline arc slot bevel gear and the bevel gear two.

[0009] Preferably, the movable block is provided with a limiting rod on both sides, the limiting rod penetrates through the movable block and is fixedly connected with the chuck at one end, and the movable block slides along the limiting rod in the axial direction.

[0010] Preferably, the device shell is provided with a fastening mechanism, the fastening mechanism comprises a movable clamping pipe and a fixed clamping pipe, the movable clamping pipe is connected with the movable block, the fixed clamping pipe is fixedly connected with the well washing pump through a fixed rod, and a matching support plate is movably connected between the movable clamping pipe and the fixed clamping pipe.

[0011] Preferably, the sampling mechanism comprises a buffer tank, the buffer tank is connected with another outlet of the three-way valve, the buffer tank is provided with a pressure balance pipe, the pressure balance pipe communicates the pump body with the buffer tank, and the buffer tank is connected with a sampling bottle at the bottom.

[0012] Preferably, a one-way valve is arranged between the sampling bottle and the buffer tank, and the one-way valve is in a direction from the buffer tank to the sampling bottle.

[0013] Preferably, the top end of the movable clamping pipe is fixedly connected with the bottom of the movable block through a fixed rod, so that when the movable block moves downward, the movable clamping pipe moves downward, and the fixed clamping pipe is fixedly connected to the outside of the well washing pump through a connecting rod.

[0014] Compared with the prior art, the present application has the following advantages: The present application realizes precise stratified isolation during deep groundwater sampling through the sealing mechanism, the movable block is driven to move downward along the limiting rod to extrude the sealing air bag, the sealing air bag is tightly attached to the well wall and the device shell, the cross-layer mixing of water bodies at different depths is effectively blocked, the drilling fluid, rock debris and the like are prevented from interfering with the water sample of the target aquifer, the obtained water sample can truly reflect the water quality state of the current groundwater, and the problem of distorted detection results caused by cross contamination of water bodies during sampling of the traditional device is solved. The present application realizes efficient connection of well washing and sampling through the linkage design of the well washing mechanism and the sampling mechanism, the cam drives the piston to reciprocate to complete well washing after the spline arc slot bevel gear is engaged with the bevel gear two, the movable piston reciprocates, the gear drives the rack to move to switch the three-way valve, the fresh water sample after well washing directly enters the sampling mechanism, the time interval between well washing and sampling is reduced, deviations of the sample and the actual water quality of the water layer caused by the time effect problem are avoided, and the timeliness and accuracy of sampling are improved. The application realizes the stable fixing of the device in the well through the cooperation of the clamping mechanism and the fastening mechanism, the locking gear of the clamping mechanism meshes with the tooth ring to drive the clamping jaw to open and clamp the well wall, the movable clamping pipe of the fastening mechanism moves downward with the movable block to push the abutting support plate to abut the well wall, a double fixing structure is formed, the position deviation of the device due to vibration in the well washing and sampling process is effectively avoided, the stable operation of each link such as sealing, well washing and sampling is ensured, and the reliability of the device under complex well conditions is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a structure split diagram of the clamping mechanism of the application; Figure 3 It is a cross-sectional view of the overall structure of the application; Figure 4 It is a perspective view of the sealing mechanism of the application; Figure 5 It is a split view of the sealing mechanism of the application; Figure 6 It is a position relationship diagram of the rotating lead screw and the movable block of the application; Figure 7 It is a perspective view of the well washing mechanism of the application; Figure 8 It is a cross-sectional view of the well washing mechanism of the application.

[0016] In the drawings: 1, device shell; 2, chuck; 3, protective cover; 4, rotating wheel; 5, clamping mechanism; 51, fixed disc; 52, locking gear; 53, tooth ring; 54, clamping jaw; 55, upper cover; 6, sealing mechanism; 61, rotating lead screw; 62, limit disc; 63, spline slot bevel gear; 64, bevel gear one; 65, bearing seat; 66, sliding groove; 67, sealing air bag; 68, movable block; 69, limit rod; 610, ball nut pair; 611, spline shaft; 612, spline arc slot bevel gear; 613, fixed rod; 614, movable pipe; 7, fastening mechanism; 71, movable clamping pipe; 72, movable connecting rod; 73, abutting support plate; 74, fixed clamping pipe; 75, connecting rod; 8, well washing mechanism; 81, well washing pump; 82, cam; 83, bevel gear two; 84, rotating gear; 85, rack; 86, pump body; 87, water inlet valve; 88, rotating rod; 89, piston; 810, three-way valve; 811, connecting rod; 9, sampling mechanism; 91, buffer tank; 92, pressure balance pipe; 93, sampling bottle. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0018] Please refer to Figures 1 to 8 The present application provides a water resource sampling and analyzing device for hydraulic engineering. The water resource sampling and analyzing device for hydraulic engineering comprises a device shell 1, a chuck 2, a protective cover 3 and a rotating wheel 4. The device shell 1 is internally provided with a sealing mechanism 6. The sealing mechanism 6 comprises a rotating lead screw 61. One end of the rotating lead screw 61 is fixedly connected with a limiting disc 62. The inside of the chuck 2 is provided with a sliding groove 66 matched with the limiting disc 62. A spline groove bevel gear 63 is sleeved outside the limiting disc 62. A bevel gear one 64 is engaged on one side of the spline groove bevel gear 63. The bevel gear one 64 is rotatably connected with the device shell 1 through a bearing seat 65. A ball nut pair 610 is matched on the rotating lead screw 61. An active block 68 is connected outside the ball nut pair 610. The active block 68 is connected with a sealing air ring. A sealing air bag 67 is arranged at the middle position of the device shell 1. The active block 68 is matched with the sealing air bag 67, so that the device shell 1 drives the active block 68 to move downward when rotating, until the active block 68 is attached to the sealing air bag 67. The active block 68 extrudes the sealing air bag 67 to tightly attach to the inner wall of the hole or the well wall, so as to separate the upper and lower water layers. The sealing mechanism 6 further comprises a spline shaft 611. One end of the spline shaft 611 is movably connected with a spline arc groove bevel gear 612. The spline shaft 611 is fixedly connected with the rotating lead screw 61. When the rotating lead screw 61 is rotated to tightly attach the active block 68 to the sealing air bag 67, the rotating lead screw 61 is continuously rotated. Since the active block 68 is fixedly connected with the sealing air bag 67, the rotating lead screw 61 is rotated to move downward through the sliding groove 66 arranged in the inside of the chuck 2. Since the limiting disc 62 is movably connected with the spline groove bevel gear 63 through the spline, when the rotating lead screw 61 is further rotated, the rotating lead screw 61 moves downward until the spline arc groove bevel gear 612 at the end of the rotating lead screw 61 is engaged with the bevel gear two 83 at the bottom. Limiting rods 69 are arranged at both sides of the active block 68. The limiting rods 69 penetrate through the active block 68 and are fixedly connected with the chuck 2 at one end. The active block 68 axially slides along the limiting rods 69. When working, the rotating screw 61 is rotated under the drive of the external driving member, and the rotating motion is converted into the axial movement of the movable block 68 along the limiting rod 69 through the ball nut pair 610 to ensure smooth movement. When the movable block 68 moves downward to be in close contact with the sealing air bag 67, the movable block 68 continues to move downward to extrude the sealing air bag 67, so that the sealing air bag 67 is radially expanded and closely attached to the device shell 1 and the well wall or the hole inner wall, thereby realizing the isolation of the upper and lower water layers and avoiding the mixing of the layers. When the movable block 68 is completely clamped and fixed with the sealing air bag 67, the rotating screw 61 continues to rotate. Since the limiting disc 62 can move axially along the sliding groove 66 of the chuck 2, and the limiting disc 62 is movably connected with the spline slot bevel gear 63 through the spline, the rotating screw 61 drives the spline shaft 611 to move downward synchronously until the spline arc slot bevel gear 612 at the end of the spline shaft 611 meshes with the bevel gear two 83 of the well washing mechanism 8.

[0019] As an embodiment of the present application, as shown in Figure 1 、 Figure 3 、 Figure 5 、 Figure 7 and Figure 8 , the device shell 1 further comprises a well washing mechanism 8 and a sampling mechanism 9. The well washing mechanism 8 comprises a well washing pump 81, the bottom of the well washing pump 81 is fixedly connected with a pump body 86, the pump body 86 is provided with a piston 89, the piston 89 is connected with a cam 82 through a connecting rod 811, the cam 82 is movably connected with a rotating rod 88, one end of the cam 82 is provided with a rotating gear 84, the other end of the cam 82 is fixedly connected with a bevel gear two 83, the rotating gear 84 meshes with a rack 85, the rack 85 is movably connected with the well washing pump 81, the water inlet end of the pump body 86 is connected with a water inlet valve 87, the water outlet end is connected with a three-way valve 810, one outlet of the three-way valve 810 is communicated to the outside of the pump body 86, the other outlet is connected to the sampling mechanism 9, so that when the spline arc slot bevel gear 612 meshes with the bevel gear two 83, the rotating screw 61 rotates to drive the bevel gear two 83 to rotate, the bevel gear two 83 drives the cam 82 to rotate, and the cam 82 drives the piston 89 to continuously enter and exit water to wash the well, and the cam 82 drives the rotating gear 84 to rotate. When the rotating gear 84 moves the rack 85 upward to a specific position, the three-way valve 810 is switched through the connecting rod 811 movably connected at the end of the rack 85, the water outlet of the pump body 86 is communicated with the sampling mechanism 9 to sample, the well washing pump 81 is fixedly connected with a movable pipe 614, and the movable pipe 614 is movably connected with the spline shaft 611, and a plurality of balls are movably connected on the opposite surface of the movable pipe 614 and the spline arc slot bevel gear 612, so that when the spline arc slot bevel gear 612 meshes with the bevel gear two 83, the rotating screw 61 rotates through the spline connection between the spline shaft 611 and the spline arc slot bevel gear 612, and the continuous rotation of the rotating screw 61 slides to the inside of the movable pipe 614 without interfering with the meshing of the spline arc slot bevel gear 612 and the bevel gear two 83. When the spline arc groove bevel gear 612 meshes with the second bevel gear 83, the rotating power of the rotating screw 61 is transmitted to the second bevel gear 83 through the spline rotating shaft 611, the cam 82 is rotated around the rotating rod 88, the cam 82 drives the piston 89 in the pump body 86 to reciprocate through the connecting rod 811, when the piston 89 goes up, negative pressure is formed in the pump body 86, the water inlet valve 87 is opened, the water sample in the target aquifer is extracted into the pump body 86, when the piston 89 goes down, the pressure in the pump body 86 is increased, the water inlet valve 87 is closed, the water sample is discharged to the outside of the pump body 86 through the "well flushing outlet" of the three-way valve 810, the well flushing and displacement of the water remaining in the pipe are completed, at the same time, the cam 82 drives the rotating gear 84 at one end to rotate synchronously, the rotating gear 84 meshes with the rack 85 to make the rack 85 slide upwards along the well flushing pump 81, when the rack 85 moves to a specific position, the connecting rod 811 at the end of the rack 85 pushes the valve core of the three-way valve 810 to switch, so that the water outlet of the pump body 86 is communicated with the sampling mechanism 9, at this time, the water sample after well flushing enters the buffer tank 91, the sampling switching is completed, in addition, the movable pipe 614 on the well flushing pump 81 is slidably connected with the spline rotating shaft 611, and the rolling balls on the contact surface reduce friction, so that when the spline arc groove bevel gear 612 meshes with the second bevel gear 83, the rotating screw 61 can slide into the movable pipe 614 without interfering with the gear meshing transmission.

[0020] As an embodiment of the present application, as shown in Figure 1 and Figure 2 , the outer side of the equipment shell 1 is provided with a clamping mechanism 5, the clamping mechanism 5 comprises a fixed disc 51, the fixed disc 51 is fixedly connected with the equipment shell 1, a locking gear 52 is rotatably connected on the fixed disc 51, a tooth ring 53 is engaged on the outer side of the locking gear 52, a clamping claw 54 is circumferentially distributed on the tooth ring 53, the clamping claw 54 is hinged with the fixed disc 51 and the end thereof extends to the outer side of the equipment shell 1, the clamping mechanism 5 further comprises an upper cover 55, the upper cover 55 is detachably connected with the fixed disc 51, a guide groove adapted to the tooth ring 53 is arranged on the inner side of the upper cover 55, and the tooth ring 53 rotates circumferentially along the guide groove; When working, the locking gear 52 is rotated by a wrench, the locking gear 52 engages the tooth ring 53 to make it rotate circumferentially along the guide groove on the inner side of the upper cover 55, when the tooth ring 53 rotates, the inner side inclined surface thereof pushes the circumferentially distributed clamping claw 54 to open outward around the hinge point of the fixed disc 51, the end of the clamping claw 54 extends to the outer side of the equipment shell 1 and is clamped into the gap of the well wall, so that the device is fixed in the well, the upper cover 55 is detachably connected with the fixed disc 51 to provide circumferential limiting for the tooth ring 53, so as to ensure that the opening angle of the clamping claw 54 is stable.

[0021] As an embodiment of the present application, as shown in Figure 1 , Figure 3 and Figure 5As shown, the device shell 1 is provided with a fastening mechanism 7, the fastening mechanism 7 includes a movable clamp pipe 71 and a fixed clamp pipe 74, the movable clamp pipe 71 is connected with the movable block 68, the fixed clamp pipe 74 is fixedly connected with the well washing pump 81 through a fixed rod 613, the movable clamp pipe 71 and the fixed clamp pipe 74 are connected with the close contact support plate 73 through a movable connecting rod 72, the top end of the movable clamp pipe 71 is fixedly connected with the bottom of the movable block 68 through the fixed rod 613, so that the movable block 68 moves downward to drive the movable clamp pipe 71 to move downward, and the fixed clamp pipe 74 is fixedly connected on the outside of the well washing pump 81 through the connecting rod 75; When working, the movable block 68 moves downward to drive the movable clamp pipe 71 to move downward synchronously through the fixed rod 613, the close contact support plate 73 connected between the movable clamp pipe 71 and the fixed clamp pipe 74 expands outward along the radial direction under the thrust of the movable clamp pipe 71 until closely contacts with the well wall, the fixed clamp pipe 74 is fixed on the outside of the well washing pump 81 through the connecting rod 75, forming a triangular support structure of the movable clamp pipe 71, the fixed clamp pipe 74 and the close contact support plate 73, which enhances the stability of the device in the well and avoids the position deviation caused by vibration during well washing and sampling.

[0022] As an embodiment of the present application, as shown in Figure 1 、 Figure 3 、 Figure 5 、 Figure 7 and Figure 8 , the sampling mechanism 9 includes a buffer tank 91, the buffer tank 91 is connected with another outlet of the three-way valve 810, the buffer tank 91 is provided with a pressure balance pipe 92, and the pressure balance pipe 92 communicates the pump body 86 with the buffer tank 91, the buffer tank 91 is connected with a sampling bottle 93 at the bottom, and a one-way valve is arranged between the buffer tank 91 and the sampling bottle 93, and the one-way valve is in a direction from the buffer tank 91 to the sampling bottle 93; When working, after switching through the three-way valve 810, the water sample enters the buffer tank 91 from the pump body 86, the pressure balance pipe 92 on the buffer tank 91 communicates the pump body 86 with the buffer tank 91, so that the pressure in the buffer tank 91 can be adjusted in real time, avoiding the gas in the water sample from escaping or the solute from precipitating due to pressure fluctuation, and the one-way valve between the bottom of the buffer tank 91 and the sampling bottle 93 only allows the water sample to flow from the buffer tank 91 to the sampling bottle 93, preventing the water sample in the sampling bottle 93 from flowing back to pollute the buffer tank 91, and finally realizing stable and non-polluted sampling.

[0023] Working principle: when working, the clamping mechanism 5 outside the device shell 1 is engaged with the gear ring 53 through the locking gear 52 to drive the clamping jaw 54 to open the fixing device, the rotating screw 61 of the sealing mechanism 6 inside the device shell 1 rotates to make the movable block 68 move downward along the limiting rod 69 to extrude the sealing air bag 67 to isolate the upper and lower water layers, the continued rotation of the rotating screw 61 drives the spline arc slot bevel gear 612 to engage with the bevel gear two 83 of the well washing mechanism 8, the bevel gear two 83 drives the cam 82 to rotate to make the piston 89 reciprocate, water is absorbed through the water inlet valve 87, the three-way valve 810 is switched to the sampling mechanism 9 through the gear 84 and the rack 85, the movable clamping pipe 71 of the fastening mechanism 7 moves downward with the movable block 68 to push the clamping support plate 73 to adhere to the well wall to enhance the stability, the water sample is adjusted in pressure through the buffer tank 91 and the pressure balance pipe 92 and then enters the sampling bottle 93 through the one-way valve.

[0024] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A water resource sampling and analysis device for a water conservancy project, comprising a device housing (1), a chuck (2), a protective cover (3) and a rotating wheel (4), characterized in that: The device housing (1) is provided with a sealing mechanism (6), the sealing mechanism (6) includes a rotating screw (61), one end of the rotating screw (61) is fixedly connected to a limit plate (62), and a sliding groove (66) matching the limit plate (62) is provided inside the chuck (2), and a spline groove bevel gear (63) is provided on the outer side of the limit plate (62), and a bevel gear 1 (64) is meshed with one side of the spline groove bevel gear (63), and the bevel gear 1 (64) is rotatably connected to the device housing (1) through a bearing seat (65). The rotating screw ( 61) is matched with a ball nut pair (610), the outer side of the ball nut pair (610) is connected to a movable block (68), the movable block (68) is connected to a sealing air ring, and a sealing air bag (67) is provided in the middle of the device housing (1), the movable block (68) matches the sealing air bag (67), the sealing mechanism (6) further includes a spline shaft (611), one end of the spline shaft (611) is movably connected to a spline arc groove bevel gear (612), and the spline shaft (611) is fixedly connected to the rotating screw (61); The housing (1) of the device is further provided with a well-washing mechanism (8) and a sampling mechanism (9). The well-washing mechanism (8) includes a well-washing pump (81). The bottom of the well-washing pump (81) is fixedly connected to a pump body (86). A piston (89) is provided in the pump body (86). The piston (89) is connected to a cam (82) via a connecting rod (811). The cam (82) is movably connected to a rotating rod (88). One end of the cam (82) is provided with a rotating gear (84). The other end of the cam (82) is fixedly connected to a second bevel gear (83). The rotating gear (84) is meshed with a rack (85). The rack (85) is slidably connected to the well-washing pump (81). The water inlet end of the pump body (86) is connected to a water inlet valve (87), and the water outlet end is connected to a three-way valve (810). One outlet of the three-way valve (810) is connected to the outside of the pump body (86), and the other outlet is connected to the sampling mechanism (9).

2. The device according to claim 1, characterized in that: The outer side of the device housing (1) is provided with a clamping mechanism (5), the clamping mechanism (5) comprising a fixed disk (51), the fixed disk (51) being fixedly connected to the device housing (1), a locking gear (52) being rotatably connected to the fixed disk (51), a toothed ring (53) being meshed on the outer side of the locking gear (52), claws (54) being circumferentially distributed on the toothed ring (53), the claws (54) being hinged to the fixed disk (51) and the ends of which extend to the outer side of the device housing (1), the clamping mechanism (5) further comprising an upper cover (55), the upper cover (55) being detachably connected to the fixed disk (51), a guide groove adapted to the toothed ring (53) being provided on the inner side of the upper cover (55), and the toothed ring (53) being circumferentially rotated along the guide groove.

3. The device according to claim 1, characterized in that: A movable tube (614) is fixedly connected to the well washing pump (81), and the movable tube (614) is slidably connected to the spline shaft (611), and a plurality of balls are movably connected on the surface of the movable tube (614) opposite to the spline arc groove bevel gear (612), so that when the spline arc groove bevel gear (612) is engaged with the bevel gear 2 (83), the rotating screw (61) rotates through the spline connection between the spline shaft (611) and the spline arc groove bevel gear (612).

4. The device according to claim 1, characterized in that: Limiting rods (69) are provided on both sides of the movable block (68). The limiting rods (69) pass through the movable block (68) and one end of the limiting rods (69) is fixedly connected to the chuck (2). The movable block (68) slides axially along the limiting rods (69).

5. The device according to claim 1, characterized in that: A fastening mechanism (7) is provided in the equipment housing (1), and the fastening mechanism (7) includes a movable clamping tube (71) and a fixed clamping tube (74). The movable clamping tube (71) is connected to the movable block (68), and the fixed clamping tube (74) is fixedly connected to the well flushing pump (81) via a fixed rod (613). A fitting support plate (73) is connected between the movable clamping tube (71) and the fixed clamping tube (74) via a movable connecting rod (72).

6. The device according to claim 1, characterized in that: The sampling mechanism (9) includes a buffer tank (91), the buffer tank (91) is connected to the other outlet of the three-way valve (810), a pressure balance pipe (92) is provided on the buffer tank (91), and the pressure balance pipe (92) communicates with the pump body (86) and the buffer tank (91), and a sampling bottle (93) is connected to the bottom of the buffer tank (91).

7. The device according to claim 6, characterized in that: A one-way valve is provided between the sampling bottle (93) and the buffer tank (91), and the one-way valve conducts from the buffer tank (91) to the sampling bottle (93).

8. The device according to claim 5, characterized in that: The top of the movable clamping tube (71) is fixedly connected to the bottom of the movable block (68) via a fixing rod (613), and the fixed clamping tube (74) is fixedly connected to the outside of the well flushing pump (81) via a connecting rod (75).

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