Underground water stratified sampling device

Abstract

The utility model discloses an underground water stratified sampling device which comprises a base, a supporting column is mounted on the upper surface of the base, a lifting mechanism is mounted on the lower surface of a cross rod, a connecting seat is mounted on a sampling rod, a switching mechanism is mounted between a sampling box and the connecting seat, and a sampling mechanism is mounted on the sampling box. According to the underground water stratified sampling device disclosed by the utility model, the connecting seat is inserted into the connecting seat I according to underground water to be sampled at different positions, and the movable inserting rod on the limiting plate is pushed by the telescopic spring, so that the movable inserting rod is inserted into the positioning hole to fix the sampling box, and the underground water at a certain depth can be sampled at different positions; an electric push rod is started to drive a switch block to move on the water inlet pipe, and after underground water is filtered and sampled through a filter screen, the electric push rod is started to close the water inlet pipe through the switch block, so that water at different depths is prevented from entering the sampling box when the sampling rod ascends, and the detection result is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater detection, in particular to a groundwater stratified sampling device. Background Art

[0002] Groundwater sampling is an important part of environmental survey. By sampling and testing groundwater with a sampling device, we can learn some characteristics of groundwater, help scientific researchers understand the composition and degree of pollution of groundwater, and play an important role in environmental protection and groundwater exploitation.

[0003] The Chinese patent application with application number CN202220766191.2 discloses a sampling device for groundwater quality detection, which discloses a sampling device that can make groundwater of different depths flow into the corresponding sample storage bottle through a silica gel funnel for stratified sampling, and prevent groundwater of different depths from flowing into the sample storage bottle to cause sample mixing by controlling the electromagnetic valve to close. It is characterized in that it includes a placement tube, a partition, a water inlet pipe, a solenoid valve and a sampling assembly, the placement tube is built with multiple partitions, and the multiple partitions divide the placement tube into multiple placement chambers, the side wall of the placement chamber is provided with a water inlet pipe, the water inlet pipe and the placement chamber are connected, the water inlet pipe is provided with a solenoid valve, the placement chamber is built with a sampling assembly, a counterweight is provided at one end of the placement tube, and a lifting ear is provided at the other end of the placement tube, the sampling assembly is composed of a taking and placing groove, a sample storage bottle, a silica gel funnel, a through hole and a bottle mouth, the side wall of the placement chamber is provided with a taking and placing groove, and the sample storage bottle is detachably placed in the placement chamber.

[0004] However, the existing sampling devices still have some defects. The positions of the sampling parts are fixed, and the positions of the sampling parts cannot be flexibly adjusted. The use is inconvenient and the practicality is poor. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a groundwater stratified sampling device, which aims to solve the problems of fixed positions between sampling parts, inability to flexibly adjust the positions of each sampling part, inconvenience in use, poor practicality, etc.

[0006] In order to achieve the above-mentioned utility model object, the technical solution adopted by the utility model is: a groundwater stratification sampling device, including a base, a support column is installed on the upper surface of the base, a cross bar is connected to the top of the support column, a lifting mechanism is installed on the lower surface of the cross bar, a sampling rod is installed on the lifting mechanism, a connecting seat 1 is installed on the sampling rod, a sampling box is connected to the connecting seat 1, a switch mechanism is installed between the sampling box and the connecting seat 1, and a sampling mechanism is installed on the sampling box;

[0007] The sampling mechanism includes a water inlet pipe installed inside a sampling box, a protective net is installed on the water inlet pipe, a filter net is installed on one side of the protective net, a fixing seat is installed on the inner wall of the sampling box, an electric push rod is installed on the fixing seat, the protruding end of the electric push rod extends into the water inlet pipe and is connected to a switch block, a water supply pipe is installed on the lower surface of the water inlet pipe, and a drain pipe is installed on the lower surface of the sampling box.

[0008] Furthermore, the lifting mechanism includes a mounting frame installed on the lower surface of the cross bar, a driving motor is installed on one side of the mounting frame, the output end of the driving motor extends into the interior of the mounting frame and is connected to a winding bundle, and the protruding end of the winding bundle is connected to the top of the sampling rod.

[0009] Furthermore, the switch mechanism includes a connecting seat 2 installed on one side of the sampling box, a partition is installed inside the connecting seat 2, a movable plug rod is sleeved on the connecting seat 2, the bottom end of the movable plug rod is connected to a limiting plate, and a telescopic spring is connected between the limiting plate and the partition.

[0010] Furthermore, a positioning hole is installed on the connecting seat, and the movable plug rod is plugged into the positioning hole.

[0011] Furthermore, a sampling hole is installed on the base.

[0012] Furthermore, a universal wheel is fixedly connected to the lower surface of the base.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses a groundwater stratified sampling device. In actual use, according to the groundwater at different positions to be sampled, the connecting seat is inserted into the connecting seat one, the movable plug rod on the limit plate is pushed by the telescopic spring, the movable plug rod is inserted into the positioning hole, the sampling box is fixed, and the groundwater at different positions under a certain depth can be sampled, thereby improving the scope of application. The driving motor is started to drive the winding bundle to rotate, and then the sampling rod is lowered, so that the groundwater at different depths can be sampled. The electric push rod is started to drive the switch block to move on the water inlet pipe, and the groundwater is filtered through the filter net. After sampling, the electric push rod is started to close the water inlet pipe through the switch block to prevent water at different depths from entering the sampling box when the sampling rod rises, thereby affecting the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of a groundwater stratification sampling device of the utility model;

[0016] Figure 2 A cross-sectional view of a sampling box of a groundwater stratification sampling device of the utility model;

[0017] Figure 3 A groundwater stratification sampling device of the utility model Figure 1 Enlarged view of point A in the middle.

[0018] Reference table of reference numerals:

[0019] 1. Base; 101. Sampling hole; 2. Support column; 3. Cross bar; 4. Lifting mechanism; 401. Mounting frame; 402. Drive motor; 403. Reeling bundle; 5. Sampling rod; 6. Connecting seat 1; 601. Positioning hole; 7. Sampling box; 8. Switch mechanism; 801. Connecting seat 2; 802. Partition; 803. Movable plug rod; 804. Limit plate; 805. Telescopic spring; 9. Sampling mechanism; 901. Water inlet pipe; 902. Protective net; 903. Filter net; 904. Fixed seat; 905. Electric push rod; 906. Switch block; 907. Water supply pipe; 908. Drain pipe; 10. Universal wheel. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0021] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figures 1 to 3 As shown, a groundwater stratified sampling device comprises a base 1, a support column 2 is installed on the upper surface of the base 1, a cross bar 3 is connected to the top of the support column 2, a lifting mechanism 4 is installed on the lower surface of the cross bar 3, a sampling rod 5 is installed on the lifting mechanism 4, a connecting seat 6 is installed on the sampling rod 5, a sampling box 7 is connected to the connecting seat 6, a switch mechanism 8 is installed between the sampling box 7 and the connecting seat 6, and a sampling mechanism 9 is installed on the sampling box 7;

[0024] The sampling mechanism 9 includes a water inlet pipe 901 installed inside the sampling box 7, a protective net 902 is installed on the water inlet pipe 901, a filter net 903 is installed on one side of the protective net 902, a fixing seat 904 is installed on the inner wall of the sampling box 7, an electric push rod 905 is installed on the fixing seat 904, the protruding end of the electric push rod 905 extends into the water inlet pipe 901 and is connected to a switch block 906, a water supply pipe 907 is installed on the lower surface of the water inlet pipe 901, and a drain pipe 908 is installed on the lower surface of the sampling box 7.

[0025] Specifically, the electric push rod 905 is started to drive the switch block 906 to move on the water inlet pipe 901, and the groundwater is filtered through the filter net 903. After sampling, the electric push rod 905 is started to close the water inlet pipe through the switch block 906 to prevent water of different depths from entering the sampling box 7 when the sampling rod 5 rises, affecting the detection result.

[0026] The lifting mechanism 4 includes a mounting frame 401 installed on the lower surface of the cross bar 3, a driving motor 402 is installed on one side of the mounting frame 401, the output end of the driving motor 402 extends into the interior of the mounting frame 401 and is connected to a winding bundle 403, and the protruding end of the winding bundle 403 is connected to the top of the sampling rod 5.

[0027] Specifically, the driving motor 402 is started to drive the winding bundle 403 to rotate, and then the sampling rod 5 is lowered to sample groundwater at different depths.

[0028] The switch mechanism 8 includes a connecting seat 801 installed on one side of the sampling box 7, a partition 802 is installed inside the connecting seat 801, a movable plug rod 803 is sleeved on the connecting seat 801, the bottom end of the movable plug rod 803 is connected to a limiting plate 804, and a telescopic spring 805 is connected between the limiting plate 804 and the partition 802.

[0029] A positioning hole 601 is installed on the connecting seat 1 6, and the movable plug rod 803 is plugged into the positioning hole 601.

[0030] A sampling hole 101 is installed on the base 1 .

[0031] A universal wheel 10 is fixedly connected to the lower surface of the base 1 .

[0032] Specifically, according to the groundwater at different positions to be sampled, the connecting seat 2 801 is inserted into the connecting seat 1 6, and the movable plug rod 803 on the limit plate 804 is pushed by the telescopic spring 805, so that the movable plug rod 803 is inserted into the positioning hole 601, and the sampling box 7 is fixed. In this way, sampling of groundwater at different positions at a certain depth can be carried out, thereby improving the scope of application.

[0033] The working principle of the present invention is as follows: in actual use, according to the groundwater to be sampled at different positions, the connecting seat 2 801 is inserted into the connecting seat 1 6, and the movable plug rod 803 on the limit plate 804 is pushed by the telescopic spring 805, so that the movable plug rod 803 is inserted into the positioning hole 601, and the sampling box 7 is fixed, so that the groundwater at different positions under a certain depth can be sampled, thereby improving the scope of application. The driving motor 402 is started to drive the winding bundle 403 to rotate, and then the sampling rod 5 is lowered, so that the groundwater at different depths can be sampled, and the electric push rod 905 is started to drive the switch block 906 to move on the water inlet pipe 901, and the groundwater is filtered through the filter net 903. After sampling, the electric push rod 905 is started to close the water inlet pipe through the switch block 906 to prevent water at different depths from entering the sampling box 7 when the sampling rod 5 rises, thereby affecting the detection results.

[0034] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A groundwater stratification sampling device, characterized in that: The invention comprises a base (1), a support column (2) being installed on the upper surface of the base (1), a cross bar (3) being connected to the top of the support column (2), a lifting mechanism (4) being installed on the lower surface of the cross bar (3), a sampling rod (5) being installed on the lifting mechanism (4), a connecting seat (6) being installed on the sampling rod (5), a sampling box (7) being connected to the connecting seat (6), a switch mechanism (8) being installed between the sampling box (7) and the connecting seat (6), and a sampling mechanism (9) being installed on the sampling box (7); The sampling mechanism (9) comprises a water inlet pipe (901) installed inside the sampling box (7), a protective net (902) is installed on the water inlet pipe (901), a filter net (903) is installed on one side of the protective net (902), a fixing seat (904) is installed on the inner wall of the sampling box (7), an electric push rod (905) is installed on the fixing seat (904), the protruding end of the electric push rod (905) extends into the water inlet pipe (901) and is connected to a switch block (906), a water supply pipe (907) is installed on the lower surface of the water inlet pipe (901), and a drainage pipe (908) is installed on the lower surface of the sampling box (7).

2. A groundwater stratification sampling device according to claim 1, characterized in that: The lifting mechanism (4) comprises a mounting frame (401) mounted on the lower surface of the crossbar (3); a driving motor (402) is mounted on one side of the mounting frame (401); an output end of the driving motor (402) extends into the interior of the mounting frame (401) and is connected to a winding bundle (403); and a protruding end of the winding bundle (403) is connected to the top end of the sampling rod (5).

3. A groundwater stratification sampling device according to claim 1, characterized in that: The switch mechanism (8) comprises a second connection seat (801) installed on one side of the sampling box (7), a partition (802) is installed inside the second connection seat (801), a movable plug rod (803) is sleeved on the second connection seat (801), the bottom end of the movable plug rod (803) is connected to a limit plate (804), and a telescopic spring (805) is connected between the limit plate (804) and the partition (802).

4. A groundwater stratification sampling device according to claim 3, characterized in that: The connection seat 1 (6) is provided with a positioning hole (601), and the movable plug rod (803) is plugged into the positioning hole (601).

5. A groundwater stratification sampling device according to claim 1, characterized in that: A sampling hole (101) is installed on the base (1).

6. A groundwater stratification sampling device according to claim 1, characterized in that: A universal wheel (10) is fixedly connected to the lower surface of the base (1).

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