Hydrogeological sample separation device

Abstract

The application discloses a water conservancy and environmental geology sample separation device, which comprises a workbench and a sample tube, the upper end of the sample tube is threadedly connected with an end cover, the lower end of the sample tube is threadedly connected with a drill cylinder, the workbench is rotationally connected with a rotating disc, a plurality of columnar step grooves are arranged in an annular array on the rotating disc, a transparent tube is arranged in the step groove, and a boss is arranged on the inner wall of the lower end of the transparent tube; a clamp is arranged on the upper side of the workbench, and the clamp is used for clamping the sample tube; the workbench is provided with a rotating arm, the rotating arm is provided with a plug rod assembly, a circular partition plate is inserted on the plug rod assembly; the rotating arm is rotated to make the partition plate enter between a first rubber ring and a second rubber ring, the partition plate can slide in the transparent tube, an extension rod is arranged at the bottom of the workbench, an electromagnet is fixedly connected to the upper end of the extension rod, and a magnetic attraction piece is arranged at the bottom of the partition plate. The soft soil samples at different depths are stored in the transparent tubes in sections, and the properties of the soft soil samples at different depths can be intuitively observed in subsequent experiments.

Description

Technical Field

[0001] This invention relates to the field of soil sample separation device technology, and in particular to a hydrogeological and environmental geological sample separation device. Background Technology

[0002] The field of hydrogeology and environmental geology refers to the three disciplines of hydrogeology, engineering geology, and environmental geology. Hydrogeology refers to the various changes and movements of groundwater in nature. In the process of hydrogeological and environmental geology research, underground soil samples are drilled and pre-treated using sample separation devices to facilitate subsequent research.

[0003] Existing technology uses a cylindrical drill pipe to drill soil samples. As the drill enters the soft soil and silt underground, air is pumped out at the top of the drill pipe to facilitate the entry of silt and soft soil into the drill pipe. The negative pressure at the top of the drill pipe brings the soft soil to the surface and fills the drill pipe with soft soil.

[0004] After bringing the soft soil to the surface, it is necessary to remove the soft soil from the drill pipe. Existing technology can push the soft soil out using a push rod. However, when the soft soil is silt, pushing it out of the drill pipe will cause it to become completely soft, which is not convenient for subsequent tests. Or, the silt may contain cavities and liquid, and too much liquid may be lost when the sample is stored in segments. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydrogeological and environmental sample separation device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hydrogeological sample separation device includes a workbench and a sample tube. The upper end of the sample tube is threadedly connected to an end cap, and the lower end of the sample tube is threadedly connected to a drill tube. The workbench is rotatably connected to a turntable. The turntable is arranged in a ring array with multiple columnar stepped grooves. A transparent tube is placed in the stepped groove, and a boss is provided on the inner wall of the lower end of the transparent tube.

[0008] A clamp is provided on the upper side of the workbench for holding the sample tube;

[0009] The workbench is equipped with a rotating arm, the rotating arm is equipped with a rod assembly, a circular partition is inserted into the rod assembly, the lower end of the sample tube is fixedly connected to a first rubber ring, and the upper end of the transparent tube is fixedly connected to a second rubber ring.

[0010] The rotating arm rotates, causing the partition to enter between the first and second rubber rings. The partition can slide inside the transparent tube. A telescopic rod is provided at the bottom of the worktable, and an electromagnet is fixedly connected to the upper end of the telescopic rod. A magnetic plate is provided at the bottom of the partition.

[0011] Preferably, the first rubber ring and the second rubber ring are respectively provided with chamfers, and the chamfers are located on the adjacent surfaces of the first rubber ring and the second rubber ring.

[0012] Preferably, the partition has a cavity inside, and one side of the outer circular surface of the partition has multiple through holes that are connected to the cavity.

[0013] Preferably, the through hole is fixedly connected to the filter gauze.

[0014] Preferably, the insertion rod assembly includes an air extraction cylinder, which is fixedly connected to a rotating arm. A piston plate is slidably connected inside the air extraction cylinder. A return spring is fixedly connected between the piston plate and the air extraction cylinder. A piston rod is fixedly connected to one side of the piston plate and a buffer spring is fixedly connected to the end. The buffer spring is fixedly connected to a pull rod, which is rotatably connected to a cylinder. An arc-shaped block is fixedly connected to the worktable, and the cylinder can roll to the outer arc surface of the arc block.

[0015] A step rod is fixedly connected to the other side of the piston plate. Two water pipes are slidably connected to the blind plate end of the air extraction cylinder. A baffle is fixedly connected to one end of the two water pipes that extends into the air extraction cylinder. A first spring is fixedly connected between the baffle and the blind plate end of the air extraction cylinder. The step rod is slidably connected to the baffle for limiting.

[0016] Preferably, the water pump pipe has an annular groove in the middle, and a rubber sleeve is fitted inside the annular groove. The inner wall of the rubber sleeve protrudes towards the central axis of the water pump pipe. The bottom of the annular groove has a through groove, and a compression strip is slidably connected inside the through groove. The compression strip is arranged correspondingly to the protrusion on the inner wall of the rubber sleeve. The side of the partition plate has an insertion hole, and the rubber sleeve is arranged corresponding to the insertion hole. A support rod is fixedly connected to one side of the compression strip, and a blocking plate is fixedly connected to one end of the support rod. The blocking plate seals the end of the water pump pipe that extends into the air pump cylinder.

[0017] Preferably, a first rubber pad is partially fixedly connected inside the water pumping pipe, a discharge pipe is fixedly connected to the bottom of the air pump, a second rubber pad is partially fixedly connected to the lower end of the discharge pipe, and a liquid storage pipe is threadedly connected to the lower end of the discharge pipe.

[0018] The first and second pads have a one-way valve structure.

[0019] The advantages of this invention are as follows: The hydrogeological sample separation device provided by this invention pushes soft soil from the sample tube into the transparent tube. Simultaneously, an electromagnet attracts a partition plate via a telescopic rod, storing the sample in the transparent tube. After the first section of sample is placed into the transparent tube, a lower partition plate is inserted using an insertion rod assembly. This partition plate is then rotated between the first and second rubber rings, cutting off the lowest section of the sample. A turntable rotates the stored transparent tube directly below the sample tube and places an empty sample tube directly below it. This process of pushing out the sample is repeated, allowing for the segmented storage of soft soil samples at different depths within each transparent tube. This facilitates subsequent experiments by providing a direct view of the properties of soft soil samples at different depths.

[0020] This invention uses an insert assembly that rotates with the rotating arm to cut the partition into the sample. During the sample cutting process, the cylinder rolls to the outer arc surface of the arc block, causing the piston rod, pull rod, and piston plate to create a pumping action. The water sample is drawn into the partition through the through hole and enters the vacuum tube through the water pumping pipe. This reduces the loss of internal water sample caused by the cutting of soft soil samples during sample cutting, and facilitates subsequent water sample analysis.

[0021] This invention uses a support rod to pull and compress the rubber sleeve, causing the rubber sleeve to expand outward and press tightly against the inner wall of the insertion hole. This avoids the risk that the axial reaction force component caused by the rotating arm inserting the partition into the sample could cause the water pipe to disengage from the insertion hole prematurely. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the basic structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the sample tube and turntable in this invention;

[0024] Figure 3 yes Figure 1 Enlarged view of section E in the image;

[0025] Figure 4 This is a schematic diagram of the connection structure between the insert assembly and the half-sectioned partition plate;

[0026] Figure 5 This is a structural schematic diagram of the insertion rod assembly;

[0027] Figure 6 This is a cross-sectional view of the water pumping pipe in this invention.

[0028] Figure 7 This is a schematic diagram of the connection structure between the sample tube, end cap, and drill barrel of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] Example 1

[0031] like Figures 1 to 7As shown, the present invention provides a hydrogeological sample separation device, including a workbench 1 and a sample tube 2. The upper end of the sample tube 2 is threadedly connected to an end cap 21, and the lower end of the sample tube 2 is threadedly connected to a drill cylinder 22. The cutting teeth at the bottom of the drill cylinder 22 facilitate drilling into the underground soft soil. After the end cap 21 and the drill cylinder 22 are removed by thread, soft soil is left in the sample tube 2, which facilitates the subsequent segmented storage of the sample. The workbench 1 is rotatably connected to a turntable 11. The turntable 11 is arranged in a ring array with multiple columnar stepped grooves 12. A transparent tube 3 is placed in the stepped groove 12. The transparent tube 3 is made of tempered glass or acrylic material. A boss 31 is provided on the inner wall of the lower end of the transparent tube 3.

[0032] A clamp 4 is provided on the upper side of the workbench 1, which is used to hold the sample tube 2;

[0033] The workbench 1 is equipped with a rotating arm 5, the rotating arm 5 is controlled by a servo motor to rotate at an angle, the rotating arm 5 is equipped with a rod assembly 6, a circular partition 7 is inserted into the rod assembly 6, the lower end of the sample tube 2 is fixedly connected to a first rubber ring 71, and the upper end of the transparent tube 3 is fixedly connected to a second rubber ring 72.

[0034] A protrusion 31 is provided on the inner wall of the lower end of the transparent tube 3 to support the partition 7 that falls into the bottom of the transparent tube 3;

[0035] The rotating arm 5 rotates, causing the partition 7 to enter between the first rubber ring 71 and the second rubber ring 72. The partition 7 can slide inside the transparent tube 3. The bottom of the worktable 1 is provided with a telescopic rod, which is a hydraulic cylinder, an electric push rod or a pneumatic cylinder. The upper end of the telescopic rod is fixedly connected to an electromagnet 10. The bottom of the partition 7 is provided with a magnetic suction plate.

[0036] In use, the soft soil in the sample tube 2 is removed by removing the end cap 21 at the top of the sample tube 2 and then descends under gravity. If the soft soil is sticky, a push piston is set in the sample tube 2 to gradually push the soft soil out of the sample tube 2. The rotating arm 5 supports the first partition 7 directly below the sample tube 2, forming a shield at the bottom of the sample tube 2. The turntable 11 rotates one position to rotate the transparent tube 3 directly below the sample tube 2. The first rubber ring 71 and the second rubber ring 72 form a sealing effect. The electromagnet 10 at the top of the telescopic rod attracts the partition 7. The insertion rod assembly 6 retracts, leaving the partition 7 alone at the top of the transparent tube 3. As the push piston pushes the soft soil from the sample tube 2 into the transparent tube 3, the electromagnet 10 attracts the partition 7 and descends along with it through the telescopic rod, storing the sample in the transparent tube 3.

[0037] The first sample is inserted into the transparent tube 3, and the insert rod assembly 6 inserts a partition 7. Then, the partition 7 is rotated between the first rubber ring 71 and the second rubber ring 72 to cut off the bottom section of the sample. The turntable 11 rotates the stored transparent tube 3 out from directly below the sample tube 2 and rotates an empty sample tube 2 to directly below the sample tube 2. The sample ejection is then repeated, so that soft soil samples of different depths can be stored in segments in each transparent tube 3. This facilitates the intuitive observation of the properties of soft soil samples at different depths in subsequent experiments, or allows for individual testing of different segments of the sample.

[0038] Furthermore, the first rubber ring 71 and the second rubber ring 72 are respectively provided with chamfers, and the chamfers are located on the adjacent surfaces of the first rubber ring 71 and the second rubber ring 72, so that the partition plate 7 can be inserted between the first rubber ring 71 and the second rubber ring 72 from here.

[0039] Example 2

[0040] like Figures 1 to 7 As shown, the partition 7 has a cavity 73 inside, and a plurality of through holes 74 are provided on one side of the outer circular surface of the partition 7. The through holes 74 are connected to the cavity 73. The through holes 74 are fixedly connected to filter gauze, so that the water sample inside the cavity of the soft soil can be pumped out separately.

[0041] Specifically, the insertion rod assembly 6 includes an air extraction cylinder 61, which is fixedly connected to the rotating arm 5. A piston plate 62 is slidably connected inside the air extraction cylinder 61. A return spring 63 is fixedly connected between the piston plate 62 and the air extraction cylinder 61. A piston rod 64 is fixedly connected to one side of the piston plate 62 and a buffer spring 65 is fixedly connected to the end. The buffer spring 65 is fixedly connected to a pull rod 66. The pull rod 66 is rotatably connected to a cylinder 67. An arc-shaped block 68 is fixedly connected to the worktable 1. The cylinder 67 can roll to the outer arc surface of the arc block 68.

[0042] When the buffer spring 65 cuts into the sample through the partition 7, there is no cavity inside the sample to hold the water sample, that is, the through hole 74 is blocked. When the piston plate 62 slides, no gas or liquid enters the vacuum cylinder 61. At this time, the buffer spring 65 is passively stretched to form a buffering effect.

[0043] The piston plate 62 is fixedly connected to the step rod 8 on the other side. The blind plate end of the air pump 61 is slidably connected to two water pumping pipes 81. One end of the two water pumping pipes 81 that extends into the air pump 61 is fixedly connected to a baffle 82. A first spring 83 is fixedly connected between the baffle 82 and the blind plate end of the air pump 61. The step rod 8 and the baffle 82 are slidably connected for limiting.

[0044] During use, the sample contains cavities that hold water. To facilitate the extraction of water and reduce liquid loss, the insertion rod assembly 6 rotates with the rotating arm 5, cutting the partition 7 into the sample. During the sample cutting process, the cylinder 67 rolls to the outer arc surface of the arc block 68, causing the piston rod 64, pull rod 66, and piston plate 62 to form a pumping action. The water sample is drawn into the partition 7 through the through hole 74 and enters the vacuum cylinder 61 through the water extraction pipe 81. This reduces the loss of internal water sample caused by the cutting of soft soil samples during sample cutting, making it easier to conduct subsequent water sample analysis.

[0045] The piston plate 62 first slides axially to create a suction effect. When the partition 7 is sent into place, the step rod 8 first slides relative to the baffle 82. Finally, the step head of the step rod 8 presses against the baffle 82, and pushes the baffle 82 to drive the water pipe 81 to slide out of the partition 7, thus making it easier to leave the partition 7 alone in the transparent pipe 3.

[0046] Example 3

[0047] like Figures 1 to 7 As shown, the water pumping pipe 81 has an annular groove 84 in the middle, and a rubber sleeve 85 is fitted inside the annular groove 84. The inner wall of the rubber sleeve 85 protrudes towards the central axis of the water pumping pipe 81. The bottom of the annular groove 84 has a through groove, and a compression strip 86 is slidably connected inside the through groove. The compression strip 86 is correspondingly arranged with the protrusion on the inner wall of the rubber sleeve 85. The side of the partition plate 7 has an insertion hole 711, and the rubber sleeve 85 is arranged corresponding to the insertion hole 711. A support rod 87 is fixedly connected to one side of the compression strip 86, and a blocking plate 88 is fixedly connected to one end of the support rod 87. The blocking plate 88 seals the end of the water pumping pipe 81 that extends into the air extraction cylinder 61. Figure 4 , Figure 5 , Figure 6 As shown, when the piston plate 62 is pulled to the right, the left end chamber of the suction cylinder 61 expands, causing water or air in the partition 7 and the suction pipe 81 to push open the blocking plate 88 and enter the suction cylinder 61. During this process, the support rod 87 pulls the extrusion strip 86 to extrude and squeeze the rubber sleeve 85, causing the rubber sleeve 85 to expand outward. The rubber sleeve 85 is pressed tightly against the inner wall of the insertion hole 711, avoiding the risk that the axial reaction force component of the force will cause the suction pipe 81 to disengage from the insertion hole 711 prematurely due to the rotation of the rotating arm 5 inserting the partition 7 into the sample.

[0048] Specifically, a first leather pad 9 is partially fixedly connected inside the water pumping pipe 81, a discharge pipe 91 is fixedly connected to the bottom of the air pump 61, a second leather pad 92 is partially fixedly connected to the lower end of the discharge pipe 91, and a liquid storage pipe 93 is threadedly connected to the lower end of the discharge pipe 91.

[0049] The first pad 9 and the second pad 92 are one-way valve structures, which are common one-way sealing structures in the prior art. For example, the first pad 9 and the second pad 92 are both circular and cover the flow hole. The edges of the first pad 9 and the second pad 92 have two fixed points. When water or air flows through, it can push open the non-fixed position of the first pad 9 or the second pad 92. When the flow pressure disappears, it resets under its own elasticity and re-covers the flow hole to form a seal. That is, the piston plate 62 moves to the right to form suction and draws the liquid into the suction cylinder 61. When the piston plate 62 stops, the first pad 9 resets and seals first. Then the piston plate 62 resets to the left. The liquid drawn into the suction cylinder 61 can only push open the second pad 92 and enter the liquid storage tube 93, thereby separating the liquid wrapped in the sample.

[0050] During use, the piston plate 62 is pulled to the right, expanding the left end chamber of the suction cylinder 61. This causes water or air in the partition 7 and the suction pipe 81 to push open the blocking plate 88 and enter the suction cylinder 61. During this process, the support rod 87 pulls the extrusion strip 86 to extrude and compress the rubber sleeve 85, causing the rubber sleeve 85 to expand outward. The rubber sleeve 85 is pressed tightly against the inner wall of the insertion hole 711, preventing the risk of the suction pipe 81 prematurely disengaging from the insertion hole 711 due to the axial reaction force component of the partition 7 being inserted into the sample by the rotation of the rotating arm 5.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogeological sample separation device, comprising a workbench (1) and a sample tube (2), the upper end of the sample tube (2) is threadedly connected to an end cap (21), the lower end of the sample tube (2) is threadedly connected to a drill barrel (22), the workbench (1) is rotatably connected to a turntable (11), the turntable (11) is arranged in a ring array with multiple columnar stepped grooves (12), a transparent tube (3) is placed in the stepped groove (12), and a boss (31) is provided on the inner wall of the lower end of the transparent tube (3); A clamp (4) is provided on the upper side of the workbench (1), and the clamp (4) is used to hold the sample tube (2); Its features are: The workbench (1) is provided with a rotating arm (5), the rotating arm (5) is provided with a rod assembly (6), a circular partition (7) is inserted into the rod assembly (6), the lower end of the sample tube (2) is fixedly connected to a first rubber ring (71), and the upper end of the transparent tube (3) is fixedly connected to a second rubber ring (72). The rotating arm (5) rotates so that the partition (7) enters between the first rubber ring (71) and the second rubber ring (72). The partition (7) can slide inside the transparent tube (3). The bottom of the worktable (1) is provided with a telescopic rod, and the upper end of the telescopic rod is fixedly connected to an electromagnet (10). The bottom of the partition (7) is provided with a magnetic suction plate. The partition (7) has a cavity (73) inside, and a plurality of through holes (74) are provided on one side of the outer circular surface of the partition (7), and the through holes (74) are connected to the cavity (73); The through hole (74) is fixedly connected to the filter gauze; The insertion rod assembly (6) includes an air extraction cylinder (61), which is fixedly connected to the rotating arm (5). A piston plate (62) is slidably connected inside the air extraction cylinder (61). A return spring (63) is fixedly connected between the piston plate (62) and the air extraction cylinder (61). A piston rod (64) is fixedly connected to one side of the piston plate (62), and a buffer spring (65) is fixedly connected to the end. The buffer spring (65) is fixedly connected to a pull rod (66). The pull rod (66) is rotatably connected to a cylinder (67). An arc-shaped block (68) is fixedly connected on the worktable (1). The cylinder (67) can roll to the outer arc surface of the arc-shaped block (68). The piston plate (62) is fixedly connected to the other side of the step rod (8), and the blind plate end of the air pump (61) is slidably connected to two water pumping pipes (81). One end of the two water pumping pipes (81) that extends into the air pump (61) is fixedly connected to a baffle (82). A first spring (83) is fixedly connected between the baffle (82) and the blind plate end of the air pump (61). The step rod (8) and the baffle (82) are slidably connected for limiting.

2. The hydrogeological and environmental sample separation device according to claim 1, characterized in that: The first rubber ring (71) and the second rubber ring (72) are respectively provided with chamfers, and the chamfers are located on the adjacent surfaces of the first rubber ring (71) and the second rubber ring (72).

3. The hydrogeological and environmental sample separation device according to claim 1, characterized in that: The pumping pipe (81) has an annular groove (84) in the middle, and a rubber sleeve (85) is fitted inside the annular groove (84). The inner wall of the rubber sleeve (85) protrudes towards the central axis of the pumping pipe (81). The bottom of the annular groove (84) has a through groove, and a compression strip (86) is slidably connected inside the through groove. The compression strip (86) is set to correspond with the protrusion on the inner wall of the rubber sleeve (85). The partition plate (7) has an insertion hole (711) on its side, and the rubber sleeve (85) is set to correspond to the insertion hole (711). A support rod (87) is fixedly connected to one side of the compression strip (86), and a blocking plate (88) is fixedly connected to one end of the support rod (87). The blocking plate (88) seals the end of the pumping pipe (81) that extends into the air extraction cylinder (61).

4. The hydrogeological and environmental sample separation device according to claim 3, characterized in that: The first pad (9) is partially fixedly connected inside the water pump (81), the bottom of the air pump (61) is fixedly connected to the discharge pipe (91), the lower end of the discharge pipe (91) is partially fixedly connected to the second pad (92), and the lower end of the discharge pipe (91) is threadedly connected to the liquid storage pipe (93). The first pad (9) and the second pad (92) have a one-way valve structure.

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