Underground water sampling and processing device

Abstract

The utility model discloses an underground water sampling and processing device, and belongs to the technical field of underground water sampling. Comprising a sampling barrel, a plurality of partition plates are fixedly installed in the sampling barrel and divide the sampling barrel into a plurality of liquid storage cavities, a piston is installed in each liquid storage cavity in a matched mode, and piston rods penetrating through the partition plates are fixedly installed among the pistons; a connecting pipe is vertically connected to the outer side of each liquid storage cavity in a penetrating mode, an opening and closing valve is installed in each connecting pipe, a traction rope with scales is fixedly installed at one end of the sampling barrel, a linear module is fixedly installed at the end, close to the traction rope, of the sampling barrel, and the linear module is used for driving the pistons to do piston motion. The thickness of the piston is larger than the inner diameter of the connecting pipe, and the technical effects that equipment is simplified and carrying is convenient are achieved.

Description

Technical Field

[0001] The present application relates to the field of groundwater sampling technology, and more specifically, to a groundwater sampling and processing device. Background Art

[0002] Hydrogeology is a branch of geology, which refers to the various changes and movement phenomena 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 hydrogeological exploration, it is necessary to sample groundwater in different regions in order to observe the water quality in various regions. At present, most of the groundwater sampling devices for hydrogeology on the market are not convenient for sampling groundwater at different depths. When sampling groundwater, the existing ones can only sample groundwater at one depth. When sampling at different depths is required, multiple sampling is often required, which is inefficient and inconvenient to use.

[0003] The document with the prior art publication number CN 218584416 U provides a groundwater sampling tube and a groundwater sampling device thereof, which samples groundwater through the sampling tube and a bracket; the spring allows adjustment according to sampling holes of different sizes; the cooperation between the fixing tube and the connecting rod is used to prevent the sampling tube from shaking and being damaged; the third connecting rod slides through the first sliding rod and the second sliding rod to drive the piston, thereby sucking groundwater from the circular hole into the sampling tube; the cooperation between the sliding sleeve and the forward and reverse threaded screw has self-locking properties, preventing the driving plate from sliding due to force; the L-shaped support plate causes the driving plate to only slide; the rotating disk makes the rotation of the forward and reverse threaded screw more labor-saving and convenient; it can conveniently solve the problem that the groundwater sampling device is inconvenient to sample groundwater at different depths, is simple to operate, and is suitable for promotion.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the device is in use, the overall structure is relatively complex, which makes the equipment relatively bulky and is not conducive to popularization and use.

[0005] With respect to the above-mentioned related technologies, the inventors believe that when the device is in use, the overall structure is relatively complex, which makes the device bulky and not conducive to popularization and use.

[0006] In view of this, we propose a groundwater sampling and processing device. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The purpose of the present application is to provide a groundwater sampling and processing device, which solves the technical problems in the above-mentioned background technology and achieves the technical effect of simplifying the equipment and facilitating portability.

[0009] 2. Technical solution

[0010] The technical solution of the present application provides a groundwater sampling and processing device, including: a sampling cylinder, a plurality of partitions are fixedly installed inside the sampling cylinder, the plurality of partitions divide the sampling cylinder into a plurality of liquid storage chambers, a piston is adapted to be installed in each of the liquid storage chambers, a piston rod penetrating the partition is fixedly installed between the plurality of pistons, a connecting pipe is vertically connected to the outer side of each of the liquid storage chambers, an opening and closing valve is installed in the connecting pipe, a traction rope with a scale is fixedly installed at one end of the sampling cylinder, a linear module is fixedly installed at one end of the sampling cylinder close to the traction rope, the linear module is used to drive the plurality of pistons to perform piston movement, and the thickness of the piston is greater than the inner diameter of the connecting pipe.

[0011] By adopting the above technical scheme, the piston is adjusted upward, and the connecting pipe is sealed by the side wall of the piston. The sampling tube is placed in the sampling well by a traction rope, and the scale value corresponding to the traction rope is observed to facilitate the observation of the descent depth of the sampling tube, and the opening and closing of the connecting pipe is controlled by the opening and closing valve to avoid mixing between each layer of sampling liquid during the diving of the sampling tube. The uppermost piston is pushed downward by the linear module. At this time, the lower piston moves downward under the push of the piston rod. When the piston moves downward, the inside of the liquid storage chamber is under negative pressure. Under the action of pressure, the opening and closing valve is opened, and then the water of the corresponding water layer is sucked into the liquid storage chamber through the connecting pipe. When the pressure is balanced, the opening and closing valve is reset to seal the connecting pipe. Finally, the sampling tube can be lifted upward by the traction rope. The overall structure is simpler, cross-mixing is not easy to occur, and it is easy to carry.

[0012] As an optional solution of the technical solution of the present application document, the opening and closing valve includes a plurality of rubber diaphragms, and the outer edges of the plurality of diaphragms are fixedly mounted on the inner wall of the connecting pipe.

[0013] By adopting the above technical solution, in the present embodiment, four membrane petals are provided and are distributed in a circular disc-shaped structure, and each membrane petal is in a fan-shaped structure, so that under the action of the rubber membrane petals, the membrane petals are sealed to each other, and when there is a negative pressure in the liquid storage chamber, the inner side of the membrane petal is inclined toward the inner direction of the connecting tube to open the connecting tube.

[0014] As an optional solution of the technical solution of the present application document, the linear module includes an electric telescopic rod and a shell, the telescopic rod of the electric telescopic rod is coaxially fixed with the piston at the uppermost end, and the electric telescopic rod is covered in the shell.

[0015] By adopting the above technical solution, the shell is fixed to the upper end of the sampling tube, and the electric telescopic rod is fixed in the shell to waterproof the electric telescopic rod and prevent the electric telescopic rod from polluting the water after being inserted into the water.

[0016] As an optional solution to the technical solution of the present application document, a buoy is threadedly connected to the outer shell.

[0017] By adopting the above technical solution, the float is assembled on the upper end of the sampling tube through the threaded connection between the outer shell and the float. At this time, after the sampling tube is dropped into the sampling well, the sampling tube is maintained under the action of the float to directly perform stratified sampling on the shallow water layer of the sampling well.

[0018] As an optional solution to the technical solution of the present application document, a counterweight is fixedly installed at one end of the sampling tube away from the traction rope.

[0019] By adopting the above technical solution, by fixing a counterweight block at the bottom of the sampling tube, it is possible to ensure that the sampling tube is submerged underwater in the sampling well, and to prevent the sampling tube from floating when the liquid storage chamber is in a hollow state.

[0020] 3. Beneficial effects

[0021] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0022] 1. The present application adjusts the piston upwards and seals the connecting tube through the side wall of the piston, places the sampling tube into the sampling well through a traction rope, and observes the scale value corresponding to the traction rope to facilitate the observation of the descent depth of the sampling tube, and controls the opening and closing of the connecting tube through the opening and closing valve to avoid mixing between each layer of sampling liquid during the diving of the sampling tube, and pushes the uppermost piston downward through the linear module. At this time, the lower piston moves downward under the push of the piston rod. When the piston moves downward, the inside of the liquid storage chamber is under negative pressure. Under the action of pressure, the opening and closing valve opens, and then the water of the corresponding water layer is sucked into the liquid storage chamber through the connecting tube. When the pressure is balanced, the opening and closing valve is reset to seal the connecting tube, and finally the sampling tube is lifted upward by the traction rope. The overall structure is simpler, cross-mixing is not easy to occur, and it is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a groundwater sampling and processing device disclosed in a preferred embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the overall cross-section structure of a groundwater sampling and processing device disclosed in a preferred embodiment of the present application;

[0025] Figure 3A groundwater sampling and processing device disclosed in a preferred embodiment of the present application Figure 2 The enlarged structural diagram at A in the middle;

[0026] Explanation of the numbers in the figure: 1. Sampling cylinder; 101. Partition; 102. Liquid storage chamber; 103. Connecting pipe; 2. Piston; 201. Piston rod; 3. Linear module; 301. Electric telescopic rod; 302. Housing; 4. Float; 5. Towing rope; 6. Counterweight; 7. Opening and closing valve; 701. Diaphragm. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] A groundwater sampling and processing device comprises: a sampling tube 1, a plurality of partitions 101 are fixedly installed inside the sampling tube 1, the plurality of partitions 101 divide the sampling tube 1 into a plurality of liquid storage chambers 102, a piston 2 is adapted to be installed in each liquid storage chamber 102, a piston rod 201 penetrating the partition 101 is fixedly installed between the plurality of pistons 2, a connecting pipe 103 is vertically connected to the outer side of each liquid storage chamber 102, an opening and closing valve 7 is installed in the connecting pipe 103, a traction rope 5 with a scale is fixedly installed at one end of the sampling tube 1, a linear module 3 is fixedly installed at the end of the sampling tube 1 close to the traction rope 5, the linear module 3 is used to drive the plurality of pistons 2 to perform piston motion, and the thickness of the piston 2 is greater than the inner diameter of the connecting tube 103.

[0029] Reference Figure 1-Figure 3 , adjust the piston 2 upward, and seal the connecting pipe 103 through the side wall of the piston 2, put the sampling tube 1 into the sampling well through the traction rope 5, and observe the scale value corresponding to the traction rope 5 to observe the descending depth of the sampling tube 1, and control the opening and closing of the connecting pipe 103 through the opening and closing valve 7 to avoid mixing between each layer of sampling liquid during the diving of the sampling tube 1, and push the uppermost piston 2 downward through the linear module 3. At this time, the piston 2 below moves downward under the push of the piston rod 201. When the piston 2 moves downward, the inside of the liquid storage chamber 102 is negative pressure. Under the action of pressure, the opening and closing valve 7 is opened, and then the water of the corresponding water layer is sucked into the liquid storage chamber 102 through the connecting pipe 103. When the pressure is balanced, the opening and closing valve 7 is reset to seal the connecting pipe 103, and finally the sampling tube 1 is lifted upward by the traction rope 5. The overall structure is simpler, cross mixing is not easy to occur, and it is easy to carry.

[0030] The on-off valve 7 includes a plurality of rubber diaphragms 701 , and outer edges of the plurality of diaphragms 701 are fixedly mounted on the inner wall of the connecting pipe 103 .

[0031] Reference Figure 3In this embodiment, four membrane petals 701 are provided and are distributed in a circular disc-shaped structure. Each membrane petal 701 is in a fan-shaped structure. Under the action of the rubber membrane petal 701, the membrane petals 701 are sealed with each other, and when there is a negative pressure in the liquid storage chamber 102, the inner side of the membrane petal 701 is inclined toward the inner direction of the connecting tube 103, so that the connecting tube 103 is opened.

[0032] The linear module 3 includes an electric telescopic rod 301 and a housing 302 . The electric telescopic rod 301 is coaxially fixed with the uppermost piston 2 , and the electric telescopic rod 301 is housed in the housing 302 .

[0033] Reference Figure 2 and Figure 3 The housing 302 is fixed to the upper end of the sampling tube 1, and the electric telescopic rod 301 is fixed in the housing 302 to waterproof the electric telescopic rod 301 and prevent the electric telescopic rod 301 from polluting the water after being inserted into the water.

[0034] The housing 302 is threadedly connected with a buoy 4 .

[0035] Reference Figure 1 and Figure 2 The float 4 is assembled on the upper end of the sampling tube 1 through the threaded connection between the outer shell 302 and the float 4. At this time, after the sampling tube 1 is thrown into the sampling well, the sampling tube 1 is maintained under the action of the float 4 to directly perform stratified sampling on the shallow water layer of the sampling well.

[0036] A counterweight 6 is fixedly mounted on one end of the sampling tube 1 away from the traction rope 5 .

[0037] Reference Figure 1 By fixing a counterweight 6 at the bottom of the sampling tube 1, the sampling tube 1 can be submerged in the water of the sampling well to prevent the sampling tube 1 from floating when the liquid storage chamber 102 is in a hollow state.

[0038] Working principle: the electric telescopic rod 301 contracts to pull the piston 2 upward and block the connecting tube 103, and then the sampling tube 1 is placed in the sampling well by the traction of the traction rope 5. After the sampling tube 1 reaches the specified depth under the action of the counterweight 6, the electric telescopic rod 301 is energized and pushes the piston 2 downward through the telescopic rod. When the piston 2 moves downward, the inside of the liquid storage chamber 102 is under negative pressure. Under the action of pressure, the inner side of the membrane flap 701 tilts toward the inside of the connecting tube 103, so that the connecting tube 103 opens, and the connecting tube 103 sucks the water of the corresponding water layer into the liquid storage chamber 102. When the pressure is balanced, the membrane flap 701 is reset, and finally the sampling tube 1 is lifted out by the traction rope 5. The mouth is contracted by the electric telescopic rod 301, and the piston 2 moves upward to discharge the liquid in the liquid storage chamber 102 through the connecting tube 103.

Claims

1. A groundwater sampling and processing device, characterized in that: include: A sampling tube (1), wherein a plurality of partitions (101) are fixedly installed inside the sampling tube (1), and the plurality of partitions (101) divide the sampling tube (1) into a plurality of liquid storage chambers (102), and a piston (2) is adapted to be installed inside each of the liquid storage chambers (102), and a piston rod (201) penetrating the partition (101) is fixedly installed between the plurality of pistons (2), and the outer side of each of the liquid storage chambers (102) is vertically connected with a connecting pipe (103), and an opening and closing valve (7) is installed in the connecting pipe (103), and a traction rope (5) with a scale is fixedly installed at one end of the sampling tube (1), and a linear module (3) is fixedly installed at one end of the sampling tube (1) close to the traction rope (5), and the linear module (3) is used to drive the plurality of pistons (2) to perform piston movement, and the thickness of the piston (2) is greater than the inner diameter of the connecting pipe (103).

2. A groundwater sampling and processing device according to claim 1, characterized in that: The on-off valve (7) comprises a plurality of rubber diaphragms (701), and the outer edges of the plurality of diaphragms (701) are fixedly mounted on the inner wall of the connecting pipe (103).

3. A groundwater sampling and processing device according to claim 1, characterized in that: The linear module (3) comprises an electric telescopic rod (301) and a housing (302); the telescopic rod of the electric telescopic rod (301) is coaxially fixed with the piston (2) at the uppermost end; and the electric telescopic rod (301) is covered in the housing (302).

4. A groundwater sampling and processing device according to claim 3, characterized in that: A buoy (4) is threadedly connected to the housing (302).

5. A groundwater sampling and processing device according to claim 1, characterized in that: A counterweight (6) is fixedly mounted on one end of the sampling tube (1) away from the traction rope (5).

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