Pressure-sensing self-sampling type sampling device for environment detection
A sampling device and environmental detection technology, applied in the direction of sampling devices, etc., can solve the problems of inaccurate sampling and affecting the accuracy of detection results, etc.
Inactive Publication Date: 2021-07-06
姜黎平
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Problems solved by technology
[0003] When testing the water quality, it is necessary to sample the water body. The water quality conditions of the water bodies at different depths in the same water area are not the same, so it is usually necessary to sample and detect the water bodies at different depths. When sampling deep water bodies, the water above is easy to pass through the sampling cylinder, which will lead to inaccurate sampling, which will affect the accuracy of the test results
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Embodiment 1
[0041] see Figure 1-6 , a sampling device for pressure-sensitive self-sampling environment detection, comprising a gas storage balloon casing 101 and a sampling box 201 arranged above the gas storage balloon casing 101, and two symmetrically arranged elastic pressure-sensitive sheets 102 are mounted on the gas storage balloon casing 101 , the top of the storage balloon shell 101 is connected with an adjustment connecting pipe 103, and the adjustment connecting pipe 103 is provided with a matching pipe piston block 104, the storage balloon casing 101 is filled with air, and the elastic pressure-sensitive sheet 102 is made of elastic metal sheet material or elastic rubber material, when the device is put into water, the water will generate a certain pressure on the elastic pressure-sensitive sheet 102, causing the elastic pressure-sensitive sheet 102 to sag inward, and the depression of the elastic pressure-sensitive sheet 102 will squeeze the storage balloon shell The air in 1...
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The invention discloses a pressure-sensing self-sampling type sampling device for environment detection, belongs to the technical field of environment detection. During sampling, the device can be directly put into water, and after the device sinks to a sampling depth, a hole plug can be automatically separated from a sampling hole so that water can flow into a sampling box through the sampling hole for sampling. The device can effectively prevent water on the upper layer from flowing into the sampling box in the sinking process of the device, sampling accuracy can be effectively improved, the accuracy of a detection result is further increased, the hole plug can be automatically inserted into the sampling hole again along with flowing-in of the water, the water on the upper layer can be effectively prevented from flowing into the sampling box when the device is pulled back upwards after sampling is completed so that accuracy of detection results can be further improved. In addition, the initial distance among the connecting pipe, the adjusting pipe piston block and the linkage vertical rod can be rotatably adjusted so that the device adapts to sampling of water bodies with different depths, and the practicability is greatly improved.
Description
technical field [0001] The invention relates to the technical field of environmental detection, in particular to a pressure-sensitive self-sampling sampling device for environmental detection. Background technique [0002] Water quality environmental testing is the process of monitoring and measuring the types of pollutants in water bodies, the concentration and change trend of various pollutants, and evaluating the water quality status. The detection range is very wide, including unpolluted and polluted natural water (river, river, lake, sea and groundwater) and various industrial drainage. The main testing items can be divided into two categories: one is comprehensive indicators reflecting water quality, such as temperature, chroma, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biochemical oxygen demand etc.; the other category is some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury a...
Claims
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IPC IPC(8): G01N1/14
CPCG01N1/14
Inventor 姜黎平
Owner 姜黎平