Underground water quality surveying and sampling device

Abstract

The utility model discloses an underground water quality surveying and sampling device, and belongs to the field of underground water surveying and sampling, the underground water quality surveying and sampling device comprises a sampling structure, the sampling structure comprises a shell, the middle part of the shell is slidably connected with a linkage device, and the middle part of the shell is fixedly connected with a buckle device; connecting rods are fixedly connected to the left end and the right end of the buckle device, two baffles are fixedly connected to the lower ends of the connecting rods, rubber strips are fixedly connected to the front ends and the rear ends of the baffles, limiting hinges are fixedly connected to the ends of the connecting rods, fan blades are hinged to the limiting hinges, and two second extension springs are fixedly connected to the upper end of the buckle device; a water inlet is formed in the upper end of the hollow column body, the sampling structure can be fixed at different positions of the pull rope, so that underground water samples with various depths can be sampled at one time, and sediment samples in an underground water diving area and a confined water area are sampled through the guide pipe.

Description

Technical Field

[0001] The invention relates to the field of groundwater surveying and sampling, and more specifically to a groundwater quality surveying and sampling device. Background Art

[0002] Groundwater refers to water that exists beneath the surface of the earth. Groundwater mostly exists in the cracks of underground rocks. Drilling equipment is used to drill holes into the surface, and then the water quality of the groundwater in the hole is surveyed. In addition, depth surveys are conducted on groundwater phreatic areas and pressurized water areas.

[0003] The survey of groundwater quality requires sampling of groundwater. Since groundwater is distributed over a wide range of depths, it is necessary to sample groundwater at different depths.

[0004] Traditional groundwater sampling requires multiple sampling of groundwater at different depths. This sampling method has many operating steps, and multiple sampling is prone to large sampling errors. It is also difficult to obtain sediment samples at the bottom of the groundwater, resulting in inaccurate water quality survey results. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a groundwater quality survey and sampling device, which can be fixed at different positions of a pull rope through a sampling structure, so that groundwater samples of various depths can be sampled at one time, and sediment samples of groundwater phreatic areas and pressurized water areas can be sampled through a catheter.

[0007] Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A groundwater quality survey sampling device comprises two brackets, wherein the lower end of one of the two brackets is fixedly connected to a base, the upper end of the base is fixedly connected to a supporting rod, a servo motor is installed on the upper end of the supporting rod, a roller is rotatably connected between the two brackets, a pull rope is wound around the outer side of the roller, and the lower end of the pull rope is fixedly connected to a sampling structure, the sampling structure comprises a shell, a linkage device is slidably connected to the middle part of the shell, a buckle device is fixedly connected to the middle part of the shell, the left and right ends of the buckle device are fixedly connected to a connecting rod, the lower end of the connecting rod is fixedly connected to two baffles, the front and rear ends of the baffles are fixedly connected to rubber strips, the end of the connecting rod is fixedly connected to a limited hinge, the limited hinge is hinged with a fan, and the upper end of the buckle device is fixedly connected to two second tension springs;

[0010] The shell comprises a hollow cylinder, a water inlet is provided at the upper end of the hollow cylinder, a limit ring, a sealing disk and a clamping block are fixedly connected in the middle of the hollow cylinder, a sliding hole is provided in the middle of the sealing disk, a strip groove is provided at the edge of the hollow cylinder, a limit strip is fixedly connected to the outer wall of the hollow cylinder, and a conduit is fixedly connected to the lower end of the hollow cylinder;

[0011] The linkage device includes a sliding rod, the upper end of which is fixedly connected to a buoyancy block, the lower end of which is fixedly connected to a first tension spring, and the lower end of which is fixedly connected to an arc-shaped push block. The sampling structure is fixed at different positions of the pull rope, so that groundwater samples of various depths can be sampled at one time, and sediment samples of groundwater diving areas and pressurized water areas can be sampled through the catheter.

[0012] Furthermore, the buckle device includes a rubber plug, two supporting blocks are fixedly connected to the upper end of the rubber plug, two slide rails are fixedly connected between the two supporting blocks, two L-shaped buckles are slidably connected between the two slide rails, limiting convex strips are provided at both front and rear ends of the L-shaped buckle, a compression spring is fixedly connected between the L-shaped buckle and the corresponding supporting block, and a blocking strip is fixedly connected to the middle of the two slide rails, so that the sampling structure can perform sampling operations on the groundwater quality.

[0013] Furthermore, the limiting ring limits the buoyancy block, and the internal material of the buoyancy block is polystyrene foam plastic, so that the buoyancy block is not easily pulled out of range by the first tension spring, and the density of the buoyancy block is less than that of water.

[0014] Furthermore, a groove matching the rubber strip is provided at the edge of the strip groove, and the limiting strip limits the connecting rod, so that the rubber strip and the baffle can seal the strip groove, and the fan blade and the connecting rod are not easy to fall out of the sampling structure.

[0015] Furthermore, the lower end of the first tension spring is fixedly connected to the sealing disk, and the sliding rod matches the sliding hole, so that the linkage device can be reset under the action of the first tension spring, and the sliding rod can slide inside the sliding hole.

[0016] Furthermore, the bottom end of the catheter is shaped like a pointed needle tube, and a round hole is opened at the lower end of the catheter, so that the catheter can be extended into the mud at the bottom of the groundwater, and the lower end of the catheter can be connected to the rope body to facilitate the fixation of the subsequent sampling structure.

[0017] Furthermore, the arc-shaped push block and the two L-shaped buckles are located on the same vertical line, and the upper part of the two L-shaped buckles close to each other is arc-shaped, so that the arc-shaped push block can push the L-shaped buckles to move, and the L-shaped buckles are not easily stuck with the arc-shaped push block.

[0018] Furthermore, a transverse groove is provided in the middle of the slide rail, and the transverse groove matches the limiting convex strip, so that the L-shaped buckle is not easy to deviate from the slide rail during movement.

[0019] Furthermore, the rotation angle of the limit hinge is 0°-50°, and the upper end of the second tension spring is fixedly connected to the sealing disk, so that the limit hinge can be rotated to a suitable angle, and the second tension spring can drive the buckle device to reset.

[0020] Furthermore, the strip groove matches the baffle, and the diameter of the rubber plug is the same as the inner diameter of the hollow cylinder, so that the baffle can seal the strip groove, the baffle can slide inside the strip groove, and the rubber plug can seal the hollow cylinder. Beneficial Effects

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] (1) This scheme fixes the sampling structure at different positions of the pull rope, so that groundwater samples at multiple depths can be sampled at one time, and sediment samples in the groundwater phreatic zone and the confined water zone can be sampled through the catheter.

[0023] (2) The fan blade drives the buckle device and the shell to move relative to each other through the connecting rod, so that the sampling structure located underwater can perform water sampling.

[0024] (3) Multiple sampling structures located in the middle of the pull rope can simultaneously sample groundwater at different depths, reducing the workload of staff.

[0025] (4) The sampling structure at the bottom of the pull rope is used to sample the sediment at the bottom of the groundwater.

[0026] (5) The linkage device is reset under the action of the first tension spring, so that after the sampling structure completes sampling, it is not easy to cause the water sample to overflow above the water surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the working state of the present invention;

[0028] Figure 2 It is a partial stereogram of the prior art of the present invention;

[0029] Figure 3 It is a three-dimensional diagram of the sampling structure of the present invention;

[0030] Figure 4 A half-cut stereoscopic diagram of the sampling structure of the present invention;

[0031] Figure 5 It is a half-cut and split stereoscopic diagram of the sampling structure of the present invention;

[0032] Figure 6A half-cut perspective view of a housing of the present invention;

[0033] Figure 7 It is a three-dimensional diagram of the linkage device of the present invention;

[0034] Figure 8 This is a disassembled diagram of the buckle device and the fan blade of the present invention;

[0035] Fig. 9 A three-dimensional diagram of the baffle and rubber strip of the present invention;

[0036] Fig.10 It is a three-dimensional diagram of the buckle device of the present invention;

[0037] Fig.11 A half-section front view of the sampling structure of the present invention;

[0038] Fig.12 It is a partial enlarged view of a half-section front view of the sampling structure of the present invention;

[0039] Fig.13 This is a working principle diagram of the initial motion state of the sampling structure of the present invention;

[0040] Fig.14 This is a working principle diagram of the sampling structure of the present invention for resetting the sampling state.

[0041] Description of the numbers in the figure:

[0042] 1. Base; 2. Bracket; 3. Support rod; 4. Servo motor; 5. Drum; 6. Pull rope; 7. Shell; 701. Hollow cylinder; 702. Water inlet; 703. Limiting ring; 704. Sealing disk; 705. Sliding hole; 706. Block; 707. Strip groove; 708. Limiting strip; 709. Conduit; 8. Linkage device; 801. Sliding rod; 802. Buoyancy block; 803. First tension spring; 804. Arc push block; 9. Buckle device; 901. Rubber plug; 902. Support block; 903. Slide rail; 904. L-shaped buckle; 905. Limiting convex strip; 906. Compression spring; 907. Blocking strip; 10. Baffle; 11. Rubber strip; 12. Connecting rod; 13. Limiting hinge; 14. Fan blade; 15. Second tension spring. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of the adapter model component. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figure 1-14 , a groundwater quality survey sampling device, comprising two brackets 2, one of the two brackets 2 is fixedly connected to a base 1 at the lower end, the upper end of the base 1 is fixedly connected to a supporting rod 3, the upper end of the supporting rod 3 is installed with a servo motor 4, a drum 5 is rotatably connected between the two brackets 2, a pull rope 6 is wound around the outer side of the drum 5, and a sampling structure is fixedly connected to the lower end of the pull rope 6, the sampling structure comprises a shell 7, a linkage device 8 is slidably connected to the middle of the shell 7, a buckle device 9 is fixedly connected to the middle of the shell 7, the left and right ends of the buckle device 9 are fixedly connected to a connecting rod 12, the lower end of the connecting rod 12 is fixedly connected to two baffles 10, the front and rear ends of the baffle 10 are fixedly connected to a rubber strip 11, the end of the connecting rod 12 is fixedly connected to a limited hinge 13, the limited hinge 13 is hinged with a fan 14, and the upper end of the buckle device 9 is fixedly connected to two second tension springs 15;

[0047] The shell 7 includes a hollow cylinder 701, a water inlet 702 is provided at the upper end of the hollow cylinder 701, a limit ring 703, a sealing disk 704 and a clamping block 706 are fixedly connected in the middle of the hollow cylinder 701, a sliding hole 705 is provided in the middle of the sealing disk 704, a strip groove 707 is provided at the edge of the hollow cylinder 701, a limit strip 708 is fixedly connected to the outer wall of the hollow cylinder 701, and a conduit 709 is fixedly connected at the lower end of the hollow cylinder 701;

[0048] The linkage device 8 includes a sliding rod 801 , the upper end of the sliding rod 801 is fixedly connected to a buoyancy block 802 , the lower end of the buoyancy block 802 is fixedly connected to a first tension spring 803 , and the lower end of the sliding rod 801 is fixedly connected to an arc-shaped push block 804 .

[0049] See also Figure 5-9 The buckle device 9 includes a rubber plug 901, two support blocks 902 are fixedly connected to the upper end of the rubber plug 901, two slide rails 903 are fixedly connected between the two support blocks 902, two L-shaped buckles 904 are slidably connected between the two slide rails 903, and the front and rear ends of the L-shaped buckle 904 are provided with limited convex strips 905, and a compression spring 906 is fixedly connected between the L-shaped buckle 904 and the corresponding support block 902, and a blocking strip 907 is fixedly connected in the middle of the two slide rails 903, so that the sampling structure can perform sampling operations on the groundwater quality. The limiting ring 703 limits the buoyancy block 802, and the internal material of the buoyancy block 802 is polystyrene foam plastic, so that the buoyancy block 802 is not easily pulled out of the range by the first tension spring 803, and the density of the buoyancy block 802 is less than that of water.

[0050] See also Figure 4-7 The edge of the strip groove 707 is provided with a groove matching the rubber strip 11, and the limiting strip 708 limits the connecting rod 12, so that the rubber strip 11 and the baffle 10 can seal the strip groove 707, and the fan blade 14 and the connecting rod 12 are not easy to escape from the sampling structure. The lower end of the first tension spring 803 is fixedly connected to the sealing disk 704, and the sliding rod 801 matches the sliding hole 705, so that the linkage device 8 can be reset under the action of the first tension spring 803, and the sliding rod 801 can slide inside the sliding hole 705.

[0051] See also Figure 8-11 The bottom end of the catheter 709 is in the shape of a pointed needle tube, and a round hole is provided at the lower end of the catheter 709, so that the catheter 709 can be extended into the mud and sand at the bottom of the groundwater, and the lower end of the catheter 709 can be connected to the rope body for the subsequent fixation of the sampling structure. The arc-shaped push block 804 and the two L-shaped buckles 904 are located in the same vertical line, and the upper part of the end close to the two L-shaped buckles 904 is in an arc shape, so that the arc-shaped push block 804 can push the L-shaped buckle 904 to move, and the L-shaped buckle 904 is not easy to get stuck with the arc-shaped push block 804.

[0052] See also Figure 6-10 , a transverse groove is provided in the middle of the slide rail 903, and the transverse groove matches the limiting convex strip 905, so that the L-shaped buckle 904 is not easy to deviate from the slide rail 903 during movement. The rotation angle of the limiting hinge 13 is 0°-50°, and the upper end of the second tension spring 15 is fixedly connected to the sealing disk 704, so that the limiting hinge 13 can be rotated to a suitable angle, and the second tension spring 15 can drive the buckle device 9 to reset. The strip groove 707 matches the baffle 10, and the diameter of the rubber plug 901 is the same as the inner diameter of the hollow cylinder 701, so that the baffle 10 can seal the strip groove 707, and the baffle 10 can slide inside the strip groove 707, and the rubber plug 901 can seal the hollow cylinder 701.

[0053] During the survey, the ground is first punched, and the holes are extended to the confined water area. Multiple sampling structures are connected to the pull rope 6. The operator adjusts the distance between each sampling structure according to the depth of sampling required, controls the servo motor 4 to drive the drum 5 to rotate, and makes the pull rope 6 control the sampling structure to descend from the punched hole. Multiple sampling structures are distributed in groundwater at different depths, and the lowest sampling structure is in contact with the bottom of the groundwater.

[0054] When the sampling structure enters below the water surface, the buoyancy block 802 floats upward in the water, and the buoyancy block 802 drives the linkage device 8 to move upward. At the same time, the arc-shaped push block 804 moves upward and no longer limits the L-shaped buckle 904. The two L-shaped buckles 904 move toward the blocking bar 907 under the action of the compression spring 906, and then the L-shaped buckles 904 are no longer limited by the block 706.

[0055] The operator then controls the servo motor 4 to reverse, and the servo motor 4 controls the pull rope 6 to accelerate upward through the roller 5. The pull rope 6 drives the sampling structure to move upward. At this time, due to the resistance of the water, the fan blade 14 rotates along the limit hinge 13, and then the fan blade 14 pulls the connecting rod 12 through the resistance of the water, so that the connecting rod 12, the buckle device 9, the baffle 10 and the rubber strip 11 and the shell 7 produce downward relative movement, and the rubber plug 901 discharges the gas inside the shell 7 through the conduit 709;

[0056] The operator then controls the servo motor 4 to stop rotating. Under the action of the second tension spring 15, the buckle device 9, the baffle 10, the rubber strip 11, the connecting rod 12, the limit hinge 13 and the fan blade 14 generate an upward relative movement with the housing 7. At this time, the rubber plug 901, the baffle 10, the rubber strip 11, the connecting rod 12 and the hollow cylinder 701 form a closed space. The rubber plug 901 allows the water to flow through the conduit 709 into the hollow cylinder 701. The sampling structure at the bottom of the pull rope 6 sucks in the mud at the bottom of the groundwater layer.

[0057] The operator controls the servo motor to rotate slowly and uniformly, so that the pull rope 6 drives the sampling structure to rise uniformly. When the sampling structure leaves the water surface, under the action of the first tension spring 803, the linkage device 8 moves downward, and at the same time, the arc-shaped push block 804 pushes the two L-shaped buckles 904 downward to both sides, and the L-shaped buckles 904 are again limited by the clamping block 706. At this time, the buckle device 9 is not easy to slide, and groundwater samples of different depths are stored inside the sampling structure. The staff classifies the groundwater samples at the position of the pull rope 6 through the sampling structure, and samples and stores the sediment inside the sampling structure at the end of the pull rope 6 for subsequent water quality analysis operations. By fixing the sampling structure at different positions of the pull rope 6, groundwater samples of multiple depths can be sampled at one time, and the sediment samples of the groundwater diving area and the pressurized water area can be sampled through the conduit 709.

[0058] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A groundwater quality survey sampling device, comprising two brackets (2), wherein the lower end of one of the two brackets (2) is fixedly connected to a base (1), the upper end of the base (1) is fixedly connected to a support rod (3), the upper end of the support rod (3) is mounted with a servo motor (4), a roller (5) is rotatably connected between the two brackets (2), a pull rope (6) is wound around the outer side of the roller (5), and the lower end of the pull rope (6) is fixedly connected to a sampling structure, characterized in that: The sampling structure comprises a shell (7), a linkage device (8) is slidably connected to the middle of the shell (7), a buckle device (9) is fixedly connected to the middle of the shell (7), the left and right ends of the buckle device (9) are fixedly connected to connecting rods (12), the lower end of the connecting rod (12) is fixedly connected to two baffles (10), the front and rear ends of the baffle (10) are fixedly connected to rubber strips (11), the end of the connecting rod (12) is fixedly connected to a limit hinge (13), the limit hinge (13) is hinged to a fan (14), and the upper end of the buckle device (9) is fixedly connected to two second tension springs (15); The shell (7) comprises a hollow cylinder (701), a water inlet (702) is provided at the upper end of the hollow cylinder (701), a limit ring (703), a sealing disk (704) and a clamping block (706) are fixedly connected to the middle of the hollow cylinder (701), a sliding hole (705) is provided at the middle of the sealing disk (704), a strip groove (707) is provided at the edge of the hollow cylinder (701), a limit strip (708) is fixedly connected to the outer wall of the hollow cylinder (701), and a conduit (709) is fixedly connected to the lower end of the hollow cylinder (701); The linkage device (8) comprises a sliding rod (801), the upper end of the sliding rod (801) is fixedly connected to a buoyancy block (802), the lower end of the buoyancy block (802) is fixedly connected to a first tension spring (803), and the lower end of the sliding rod (801) is fixedly connected to an arc-shaped push block (804).

2. A groundwater quality survey and sampling device according to claim 1, characterized in that: The buckle device (9) comprises a rubber plug (901), the upper end of the rubber plug (901) is fixedly connected to two supporting blocks (902), two slide rails (903) are fixedly connected between the two supporting blocks (902), two L-shaped buckles (904) are slidably connected between the two slide rails (903), the front and rear ends of the L-shaped buckle (904) are provided with limiting convex strips (905), a compression spring (906) is fixedly connected between the L-shaped buckle (904) and the corresponding supporting block (902), and a blocking strip (907) is fixedly connected to the middle of the two slide rails (903).

3. A groundwater quality survey and sampling device according to claim 1, characterized in that: The limiting ring (703) limits the position of the buoyancy block (802), and the internal material of the buoyancy block (802) is polystyrene foam plastic.

4. A groundwater quality survey and sampling device according to claim 1, characterized in that: A groove matching the rubber strip (11) is provided on the edge of the strip-shaped groove (707), and the limiting strip (708) limits the connection rod (12).

5. The groundwater quality survey and sampling device according to claim 1, characterized in that: The lower end of the first tension spring (803) is fixedly connected to the sealing disk (704), and the sliding rod (801) matches the sliding hole (705).

6. A groundwater quality survey and sampling device according to claim 1, characterized in that: The bottom end of the catheter (709) is in the shape of a pointed needle tube, and a circular hole is provided at the lower end of the catheter (709).

7. A groundwater quality survey and sampling device according to claim 2, characterized in that: The arc-shaped push block (804) and the two L-shaped buckles (904) are located on the same vertical line, and the upper portions of the adjacent ends of the two L-shaped buckles (904) are arc-shaped.

8. A groundwater quality survey and sampling device according to claim 2, characterized in that: A transverse groove is provided in the middle of the slide rail (903), and the transverse groove matches the limiting convex strip (905).

9. A groundwater quality survey and sampling device according to claim 1, characterized in that: The rotation angle of the limit hinge (13) is 0°-50°, and the upper end of the second tension spring (15) is fixedly connected to the sealing disk (704).

10. A groundwater quality survey and sampling device according to claim 2, characterized in that: The strip-shaped groove (707) matches the baffle (10), and the diameter of the rubber plug (901) is the same as the inner diameter of the hollow cylinder (701).

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