Water sample filtering and separating device for environment detection

Abstract

The utility model discloses a water sample filtering and separating device for environment detection, which comprises a shell, a liquid inlet arranged at the upper part of the shell, a liquid outlet arranged at the lower part of the shell, a filtering plate arranged inside the shell, filtering holes distributed on the filtering plate, a threaded rod connected to the upper part of the shell, and a screwing handle arranged at the upper end of the threaded rod, a lower pressing plate is movably installed at the bottom end of the threaded rod, a sliding rod is installed on the side portion of the shell in a sliding mode, one end of the sliding rod extends out of the shell and is provided with a push-pull handle, the other end of the sliding rod extends into the shell and is provided with a fixing part, a scraper is installed at the lower end of the fixing part and makes contact with the filtering plate, and the scraper is connected with an elastic piece. People only need to pour a water sample into the liquid inlet to filter the water sample, the pressing plate can extrude impurities only by rotating the screwing handle, so that water sample liquid in the impurities is extruded out, the push-pull handle is pushed to clean the impurities, and the impurities are prevented from blocking the filter holes.

Description

Technical Field

[0001] The utility model relates to the field of environmental detection, in particular to a water sample filtering and separating device for environmental detection. Background Technique

[0002] Environmental detection refers to the activity of environmental detection institutions using physical, chemical and biological technical means to monitor and measure the environmental quality status. Environmental detection is to monitor and measure the indicators reflecting environmental quality to determine the pollution status of the environment and the level of environmental quality. The content of environmental detection mainly includes the monitoring of physical indicators, the monitoring of chemical indicators and the monitoring of ecological systems. When conducting water environment detection, it is usually to sample open waters, which results in the mixing of some sundries such as leaves during the sampling process, and the collected water samples need to be filtered.

[0003] After the existing water sample filtering and separating device filters for a period of time, it is easily blocked by impurities, affecting the subsequent normal filtering of the filtering device. It is necessary to frequently clean the impurities to ensure continuous filtering. Moreover, a large amount of water sample liquid remains in the impurities generated by filtering. If not processed, it will lead to the underutilization of the water sample. Content of the Utility Model

[0004] The purpose of the utility model is to provide a water sample filtering and separating device for environmental detection to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The filter press of the embodiment of the present invention is to filter the filter screen through the filter screen, and the filter screen is provided with a plurality of filter screens, and the filter screen is provided with a plurality of filter screens at the filter screen. The impurities are filtered by the filter plate, and the remaining liquid passes through the filter holes and falls to the bottom of the shell, and finally flows out of the shell from the liquid outlet. When it is necessary to clean the impurities, the handle is rotated to drive the threaded rod to press down, and the pressed threaded rod drives the lower pressure plate to move downward until the lower pressure plate squeezes the impurities on the surface of the filter plate, so that the water sample liquid in the impurities can be squeezed out to avoid waste of water sample. After squeezing the impurities, the handle is rotated in the opposite direction, and the lower pressure plate and the threaded rod rise. In the initial state, the elastic member is at its original length and the scraper is at the leftmost position, so that the downward moving lower pressure plate will not squeeze the scraper. When it is necessary to remove impurities, the push-pull handle is pushed into the shell, and then the sliding rod and the scraper are moved to the other side of the filter plate until they reach the other side of the shell. In this process, the impurities are pushed to the other side of the filter plate to avoid impurities clogging the filter holes. The elastic member is continuously stretched to accumulate energy, and then the push-pull handle is released, and the elastic member contracts, thereby driving the scraper to return to its initial position for the next use.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: a liquid guide plate is obliquely arranged inside the shell, and the four sides of the liquid guide plate are tightly fitted with the inner wall of the shell, the uppermost end of the liquid guide plate is located below the filter plate and the lowermost end of the liquid guide plate is flush with the lower end surface of the inner wall of the liquid outlet, and the liquid guide plate can guide the water sample passing through the filter hole to the liquid outlet.

[0009] In an optional solution: the filter holes are evenly distributed on the filter plate and the pore sizes of the filter holes are not the same, which can ensure that impurities in the water sample can be filtered out to the greatest extent.

[0010] In an optional solution: a layer of brushes is provided at the bottom of the scraper to remove impurities that are difficult for the scraper to scrape away, and all impurities on the filter plate and filter holes can be removed as much as possible to ensure the normal use of the filter plate.

[0011] In an alternative embodiment: The two side surfaces of the scraper are in close contact with the inner wall of the housing, which can ensure that all impurities on the filter plate are scraped away, cleaning the filter plate to the greatest extent.

[0012] In an alternative embodiment: The elastic member is a tension spring, which is easy to purchase and replace.

[0013] In an alternative embodiment: A long observation hole is provided on one side wall of the housing, and a transparent observation plate is hermetically fixed at the observation hole for facilitating the observation of the situation on the filter plate. A plurality of universal wheels are fixed on the bottom surface of the housing for facilitating the movement of the device to the required position.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The water sample filtration and separation device for environmental detection can meet the usage requirements of people. People only need to pour the water sample into the liquid inlet to perform water sample filtration. By simply rotating the screwing handle, the lower pressing plate can be used to squeeze the impurities, thereby squeezing out the water sample liquid in the impurities and avoiding the waste of the water sample liquid. By pushing the push-pull handle, the impurities can be cleaned, avoiding the blockage of the filter holes by the impurities, so that the device can continuously filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a first cross-sectional view of the water sample filtration and separation device for environmental detection.

[0017] Figure 2 FIG. 2 is a second cross-sectional view of the water sample filtration and separation device for environmental detection.

[0018] Figure 3 FIG. 3 is a side view of the water sample filtration and separation device for environmental detection.

[0019] Figure 4 FIG. 4 is a top view of the water sample filtration and separation device for environmental detection.

[0020] Annotation of reference numerals: 1 - housing, 2 - screwing handle, 3 - liquid inlet, 4 - threaded rod, 5 - liquid outlet, 6 - push-pull handle, 7 - sliding rod, 8 - lower pressing plate, 9 - filter plate, 10 - filter hole, 11 - fixing part, 12 - scraper, 13 - elastic member, 14 - liquid guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts are denoted by the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the various components may be enlarged or reduced. The various embodiments listed in the present utility model are only used to illustrate the present utility model and are not used to limit the scope of the present utility model. Any obvious modification or change made to the present utility model does not depart from the spirit and scope of the present utility model.

[0022] In one embodiment, as Figures 1-4As shown in the figure, an environmental detection water sample filtration and separation device includes a housing 1. An inlet 3 is provided at the upper part of the housing 1, and the inlet 3 is used for pouring water samples. An outlet 5 is provided at the lower part of the housing 1, and the outlet 5 is used for discharging the filtered water samples. A filter plate 9 is installed inside the housing 1, and the height of the bottom end of the filter plate 9 is higher than the height of the inlet 3 to ensure that all the water samples can fall on the filter plate 9. Filter holes 10 are distributed on the filter plate 9. A threaded rod 4 is also connected to the upper part of the housing 1. The upper end of the threaded rod 4 extends outside the housing 1, and a screwing handle 2 is installed at the upper end of the threaded rod 4. Internal threads adapted to the threaded rod 4 are provided inside the housing 1. The threaded rod 4 can move up and down through the cooperation with the internal threads. The bottom end of the threaded rod 4 is movably installed with a lower pressing plate 8, and the lower pressing plate 8 is located above the filter plate 9 to ensure that the lower pressing plate 8 can squeeze the impurities on the filter plate 9. A sliding rod 7 is slidably installed on the side of the housing 1. One end of the sliding rod 7 extends outside the housing 1 and is installed with a push-pull handle 6. The other end of the sliding rod 7 extends into the housing 1 and is installed with a fixing part 11. A scraper 12 is installed at the lower end of the fixing part 11 and the scraper 12 is in contact with the filter plate 9. An elastic member 13 is fixedly connected to one side of the sliding rod 7 slidably installed inside the housing 1, and the elastic member 13 is connected to the scraper 12. The user pours the water sample into the inlet 3, and the water sample flows into the housing 1 and falls on the filter plate 9. The impurities in the water sample are filtered by the filter plate 9, and the remaining liquid passes through the filter holes 10 and falls to the bottom of the housing 1, and finally flows out of the housing 1 from the outlet 5. By rotating the screwing handle 2, the threaded rod 4 can be driven to press down. The pressing threaded rod 4 drives the lower pressing plate 8 to move down until the lower pressing plate 8 squeezes the impurities on the surface of the filter plate 9, and the water sample liquid in the impurities can be squeezed out to avoid waste of the water sample. After squeezing the impurities, rotate the screwing handle 2 in the reverse direction, and the lower pressing plate 8 and the threaded rod 4 will rise, and the water sample can be filtered continuously. In the initial state, the elastic member 13 is in its original length and the scraper 12 is located at the leftmost position, so that the descending lower pressing plate 8 will not squeeze the scraper 12. When it is necessary to remove the impurities, push the push-pull handle 6 into the housing 1, and then the sliding rod 7 and the scraper 12 both move to the other side of the filter plate 9 until they reach the other side of the housing 1. During this process, the impurities are pushed to the other side of the filter plate 9 to avoid clogging of the filter holes 10 by the impurities. The elastic member 13 is continuously stretched and stores energy. Then release the push-pull handle 6. Without external force, the elastic member 13 that stores energy contracts to its original length, thereby driving the scraper 12 to return to its initial position for the next use.

[0023] In one embodiment, as Figures 1-2 shown, a liquid guide plate 14 is inclinedly arranged inside the housing 1. The four side surfaces of the liquid guide plate 14 are closely attached to the inner wall of the housing 1. The uppermost end of the liquid guide plate 14 is located below the filter plate 9, and the lowermost end of the liquid guide plate 14 is flush with the lower end surface of the inner wall of the outlet 5. This structure can ensure that the water samples passing through the filter holes 10 will all fall on the liquid guide plate 14 and thus be guided to the outlet 5.

[0024] In one embodiment, as Figures 1-2 shown, the filtering holes 10 are evenly distributed on the filter plate 9 to ensure that all water samples will be filtered. The apertures of the filtering holes 10 are not the same, and impurities of different sizes can be filtered. A protrusion is provided at the position of the lower pressing plate 8 corresponding to the filtering holes 10, which can remove the impurities blocked in the filtering holes 10 to ensure that the filtering holes 10 can continue to be used.

[0025] In one embodiment, as Figures 1-2 shown, a layer of brush (not shown in the figure) is provided at the lower part of the scraper 12, which can remove the impurities that are not easily scraped away by the scraper 12, such as the impurities in the filtering holes 10, and can remove all the impurities on the filter plate 9 and the filtering holes 10 as much as possible to ensure the normal use of the filter plate 9. A dropping groove (not shown in the figure) can be provided on the side of the filter plate 9 away from the scraper 12, and a collection box is installed below the dropping groove. The scraper 12 pushes the impurities to the dropping groove, and the impurities fall into the collection box from the dropping groove, which is convenient for cleaning.

[0026] In one embodiment, as Figures 3-4 shown, an observation long hole (not shown in the figure) is opened on one side wall of the outer shell 1, and a transparent observation plate is hermetically fixed at the observation long hole, which is convenient for observing the situation on the filter plate 9 and can clean the impurities in time. A plurality of universal wheels (not shown in the figure) are fixed on the bottom surface of the outer shell 1, which is convenient for moving the device to the required position.

[0027] The present utility model provides a water sample filtering and separating device for environmental detection in the above embodiments. After pouring the water sample into the liquid inlet 3, the water sample can be filtered. Just rotate the screwing handle 2, and the lower pressing plate 8 can be used to squeeze the impurities, so as to squeeze out the water sample liquid in the impurities and avoid the waste of the water sample liquid. Push the push-pull handle 6, and the scraper 12 can push the impurities to the other side of the filter plate 9 to realize the cleaning of the impurities and avoid the blockage of the filtering holes 10 by the impurities. If the push-pull handle 6 is not pushed, under the action of the elastic member 13, the scraper 12 automatically returns to the initial position.

[0028] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A water sample filtering and separation device for environmental testing, comprising a shell, a liquid inlet is arranged at the upper part of the shell, a liquid outlet is arranged at the lower part of the shell, a filter plate is installed inside the shell, and the height of the bottom end of the filter plate is higher than the height of the liquid inlet, and filter holes are distributed on the filter plate, characterized in that: A threaded rod is also connected to the upper part of the shell, the upper end of the threaded rod extends out of the shell and a screw handle is also installed on the upper end of the threaded rod, an internal thread matching the threaded rod is arranged in the shell, a lower pressure plate is movably installed at the bottom end of the threaded rod and the lower pressure plate is located above the filter plate, a sliding rod is slidably installed on the side of the shell, one end of the sliding rod extends out of the shell and a push-pull handle is installed, the other end of the sliding rod extends into the shell and a fixing part is installed, a scraper is installed at the lower end of the fixing part and the scraper contacts the filter plate, and an elastic member is fixedly connected to one side of the sliding rod slidably installed in the shell, and the elastic member is connected to the scraper.

2. The water sample filtering and separation device for environmental testing according to claim 1 is characterized in that: The filter holes are evenly distributed on the filter plate and the pore sizes of the filter holes are different.

3. The water sample filtering and separation device for environmental testing according to claim 1, characterized in that: A layer of brushes is arranged at the lower part of the scraper.

4. The water sample filtering and separation device for environmental testing according to claim 1, characterized in that: The two side surfaces of the scraper are tightly fitted with the inner wall of the shell.

5. The water sample filtering and separation device for environmental testing according to claim 3 is characterized in that: A long observation hole is opened on one side wall of the shell, and a transparent observation plate is sealed and fixed at the long observation hole. A plurality of universal wheels are fixed on the bottom surface of the shell.

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