Underground water fixed-point sampling detection equipment

Abstract

The utility model discloses underground water fixed-point sampling detection equipment, which relates to the technical field of sampling equipment and comprises a bottom plate and a sampling pipe, a water inlet component is mounted on the sampling pipe, a water pumping component and a water draining component which are connected with the sampling pipe are mounted at the top end of the bottom plate, and a water quality detector is placed on the side of the top end of the bottom plate through a fixing clamp. A water container is fixed to the top end of the bottom plate and located on one side of the water quality detector, the water inlet assembly comprises a top cover screwed to the top end of the sampling pipe, an adjusting rod is inserted in the middle of the top cover, the bottom end of the adjusting rod extends to the position below the sampling pipe and is connected with a water baffle, and the water pumping assembly comprises a water pump installed on the upper end face of the bottom plate. According to the water sampling device, water in the sampling pipe can be discharged for sampling through the arranged water discharging assembly, errors of detection data caused by mixing of a sample and residual water during sampling are avoided, the mobility is good, water at different depths and different positions can be conveniently sampled and detected, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to a groundwater fixed-point sampling and detection device. Background Art

[0002] Groundwater refers to water stored in the rock voids below the ground. In a narrow sense, it refers to water in saturated aquifers below the groundwater surface. Foreign scholars believe that there are three definitions of groundwater: one is all water buried in groundwater that is significantly different from surface water, especially the water in the saturated zone of the aquifer; the second is water that flows or infiltrates downward to saturate the soil and rock and replenish springs and wells; the third is water stored in underground rock cavities and in the voids of crustal materials. Groundwater is an important component of water resources. Due to its stable water volume and good water quality, it is one of the important water sources for agricultural irrigation, industry, mining and cities. Groundwater sampling technology is the core of groundwater monitoring, but due to the existence of relatively impermeable layers in the stratigraphic structure, groundwater also layers and the indicators and components of each layer of water are also different, so it is necessary to sample in layers and avoid mixing to avoid mutual interference and inaccurate analysis of the results.

[0003] When the existing groundwater sampling device is lowered or taken out, it comes into contact with water sources at different depths, which easily leads to mixing of water sources at different depths, and precipitation between water sources at different depths, resulting in inconsistency between the composition of the water source in the casing and the actual composition of the water source flowing out of the aquifer at the same depth, resulting in errors. Therefore, a groundwater fixed-point sampling and detection device is now provided. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a groundwater fixed-point sampling and detection device. The water in the sampling tube can be discharged through the arranged drainage component before sampling, so as to avoid the mixing of the sample with the residual water during sampling, which may cause errors in the detection data. The utility model has good mobility and is convenient for sampling and detecting water at different depths and different positions. The utility model has good practicality and overcomes the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A groundwater fixed-point sampling and testing device comprises a bottom plate and a sampling tube, a water inlet assembly is installed on the sampling tube, a water pumping assembly and a water discharge assembly connected to the sampling tube are installed on the top of the bottom plate, a water quality detector is placed on the top side of the bottom plate through a fixing card, and a water container is fixed on the top of the bottom plate at one side of the water quality detector;

[0007] The water inlet assembly comprises a top cover screwed on the top of the sampling tube, an adjusting rod is inserted in the middle of the top cover, and the bottom end of the adjusting rod extends to the bottom of the sampling tube and is connected to a water baffle.

[0008] Through the above scheme, the water in the sampling tube can be discharged through the set drainage component before sampling, avoiding the mixing of the sample and the residual water during sampling, which will cause errors in the test data. It also has good mobility, which is convenient for sampling and testing water at different depths and different locations, and has good practicality.

[0009] Preferably, the pumping assembly includes a pump installed on the upper end surface of the base plate, the water outlet of the pump is connected to a water outlet pipe, and one end of the water outlet pipe connected to the water pump pumping end is connected to the bottom of the sampling tube.

[0010] Preferably, the drainage assembly includes an air compressor installed on the upper end surface of the base plate, and one end of an air outlet pipe connected to an air outlet valve of the air compressor is connected to the top cover.

[0011] Preferably, a handle is provided at the top end of the outer wall of the sampling tube, an anti-drop rod is screwed at the top end of the adjusting rod, and the length of the adjusting rod is greater than the length of the sampling tube.

[0012] Preferably, bolts are fixed to the upper end surface of the base plate, and the bottom end of the water container is screwed to the bolts.

[0013] Preferably, a battery and a control switch are fixed to the upper end surface of the base plate.

[0014] Preferably, a handle is fixed to the upper end surface of the bottom plate, and anti-slip grooves are provided on the handle.

[0015] The beneficial effects of the utility model are:

[0016] The drainage component can be used to drain the water in the sampling tube before sampling, avoiding the mixing of the sample with the residual water during sampling, which may cause errors in the test data. It has good mobility, is convenient for sampling and testing water at different depths and locations, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first-perspective stereoscopic structural schematic diagram of a groundwater fixed-point sampling and detection device proposed by the utility model.

[0018] Figure 2 This is a second-angle stereoscopic structural schematic diagram of a groundwater fixed-point sampling and detection device proposed by the utility model.

[0019] Figure 3 This is a third-angle stereoscopic structural diagram of a groundwater fixed-point sampling and detection device proposed by the utility model.

[0020] Figure 4 A groundwater fixed-point sampling and detection device proposed by the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. bottom plate; 2. sampling tube; 3. water pump; 4. water quality detector; 5. water container; 6. battery; 7. air compressor; 8. handle; 9. air outlet pipe; 10. adjustment rod; 11. top cover; 12. handle; 13. water pump; 14. water outlet pipe; 15. water baffle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1, reference Figure 1-4 A groundwater fixed-point sampling and testing device comprises a bottom plate 1 and a sampling tube 2, a water inlet assembly is installed on the sampling tube 2, a water pumping assembly and a water discharge assembly connected to the sampling tube 2 are installed on the top of the bottom plate 1, a water quality detector 4 is placed on the top side of the bottom plate 1 through a fixing card, and a water container 5 is fixed on the top of the bottom plate 1 on one side of the water quality detector 4;

[0024] The water inlet assembly includes a top cover 11 screwed to the top of the sampling tube 2, an adjusting rod 10 is inserted in the middle of the top cover 11, and the bottom end of the adjusting rod 10 extends to the bottom of the sampling tube 2 and is connected to a water baffle 15;

[0025] The pumping assembly includes a pump 13 installed on the upper end surface of the bottom plate 1, the outlet end of the pump 13 is connected to a water outlet pipe 14, and one end of the pumping pipe 3 connected to the pumping end of the pump 13 is connected to the bottom of the sampling tube 2;

[0026] The drainage assembly includes an air compressor 7 installed on the upper end surface of the base plate 1, one end of the air outlet pipe 9 connected to the air outlet valve of the air compressor 7 is connected to the top cover 11, a handle 12 is provided at the top end of the outer wall of the sampling tube 2, the top end of the adjusting rod 10 is screwed with an anti-drop rod, and the length of the adjusting rod 10 is greater than the length of the sampling tube 2, the upper end surface of the base plate 1 is fixed with bolts, the bottom end of the water container 5 is screwed with the bolts, the upper end surface of the base plate 1 is fixed with a battery 6 and a control switch, the upper end surface of the base plate 1 is fixed with a handle 8, and the handle 8 is provided with anti-slip grooves.

[0027] Working principle: hold the sampling tube 2 by the handle 12, and push the bottom end of the sampling tube 2 into the water collection position. By opening the valve of the air compressor 7, the air in the air compressor 7 enters the sampling tube 2, so that the residual water in the sampling tube 2 is discharged, so as to avoid the mixing of the sample and the residual water during sampling, which may cause errors in the detected data. Then close the valve of the air compressor 7, move the bottom end of the sampling tube 2 to the sampling point, press the adjustment rod 10 to separate the water baffle 15 from the sampling tube 2, and the water around the sampling point can enter the sampling tube 2. Turn on the water pump 13 to pump the water in the sampling tube 2 into the water container 5, and take the water quality detector 4 to detect the water quality.

[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A groundwater fixed-point sampling and detection device, comprising a base plate (1) and a sampling tube (2), characterized in that: The sampling tube (2) is provided with a water inlet assembly, the top of the bottom plate (1) is provided with a water pumping assembly and a water discharge assembly connected to the sampling tube (2), a water quality detector (4) is placed on the top side of the bottom plate (1) via a fixing card, and a water container (5) is fixed on the top of the bottom plate (1) on one side of the water quality detector (4); The water inlet assembly comprises a top cover (11) screwed onto the top end of the sampling tube (2); an adjusting rod (10) is inserted into the middle of the top cover (11); the bottom end of the adjusting rod (10) extends to the bottom of the sampling tube (2) and is connected to a water baffle (15).

2. A groundwater fixed-point sampling and detection device according to claim 1, characterized in that: The pumping assembly comprises a pump (13) mounted on the upper end surface of the base plate (1); a water outlet end of the pump (13) is connected to a water outlet pipe (14); and one end of a water outlet pipe (3) connected to the pumping end of the pump (13) is connected to the bottom of the sampling tube (2).

3. The groundwater fixed-point sampling and detection equipment according to claim 1 is characterized in that: The drainage assembly comprises an air compressor (7) mounted on the upper end surface of the bottom plate (1); one end of an air outlet pipe (9) connected to an air outlet valve of the air compressor (7) is connected to a top cover (11).

4. The groundwater fixed-point sampling and detection equipment according to claim 1 is characterized in that: A handle (12) is provided at the top end of the outer wall of the sampling tube (2); an anti-drop rod is screwed onto the top end of the adjustment rod (10); and the length of the adjustment rod (10) is greater than the length of the sampling tube (2).

5. The groundwater fixed-point sampling and detection equipment according to claim 1 is characterized in that: The upper end surface of the bottom plate (1) is fixed with bolts, and the bottom end of the water container (5) is screwed to the bolts.

6. The groundwater fixed-point sampling and detection equipment according to claim 1 is characterized in that: A storage battery (6) and a control switch are fixed to the upper end surface of the base plate (1).

7. The groundwater fixed-point sampling and detection equipment according to claim 1 is characterized in that: A handle (8) is fixed to the upper end surface of the bottom plate (1), and anti-slip grooves are arranged on the handle (8).

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