Portable water sample collecting suction filter

Abstract

The invention discloses a portable water sample collecting suction filter. An upper frame and a lower frame of the collecting suction filter are connected, the lower frame, a base and a shell are connected, the shell covers the upper frame and the lower frame completely, a suction filtering system comprises a suction filtering head, an upper sleeve, a clamping buckle, a lower sleeve, liquid collecting bottles, supporting boards, a rotating hinge, a sliding groove, an air suction pipe, filtering membrane, a gasket, a battery, a vacuum air pump and a clamping ring, and an operation display system comprises a display panel, an operation button, a circuit board and a printing system. A tester uses connection between a smart phone and the suction filter, through a printer, labels of water sample drawing time and location information are obtained, and the liquid collection bottles on different specifications are placed in the sleeves. By adopting the portable water sample collecting suctionfilter, the step of pouring filter liquid in liquid collection bottles according to a traditional suction filter and the step of manual water sample adding according to a traditional suction filter can be omitted, water samples and impurities are prevented from being mixed, operation is simple, and carrying is convenient.

Description

technical field [0001] The invention relates to an environmental analysis instrument, in particular to a portable suction filter for collecting water samples. Background technique [0002] Saving resources and protecting the environment are the basic national policies of our country. The country attaches great importance to environmental protection. Among them, the collection and detection of particles, organic matter and other soluble elements in water is very necessary for water resource protection, and the demand for related environmental protection instruments is very urgent. The suction filter is mainly used in the collection of water samples. The relevant national laws and regulations clearly stipulate that when measuring soluble elements, the collected water samples must be immediately filtered on site with a 0.450 μm microporous membrane and then placed in a liquid collection bottle. The filter puts forward the following requirements. The suction filter should be por...

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Problems solved by technology

[0003] At present, the existing suction filtration equipment on the market still cannot meet the above requirements. For example, Chinese patent ZL201611046407.3 discloses a portable manual suction filter for collecting particulate organic matter in water. The speed is very slow and the practical value is low; Chinese patent ZL201721091230.9 authorizes a portable filter, which is easy to carry, and the suction pump is used to greatly improve the suction filtration speed, but it is necessary to manually add water samples to the suction filter head. Water samples still need to be manually put into the liquid collection bottle, the operation steps are complicated, and it does not have the function of displaying the time and place of water sample collection, and lacks the prevention and supervision of potential illegal operations; other suction filters are similar to the above two types of equipment

At present, there is no suction filtration equipment that can fully meet the above functional requirements.

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