Portable drinking water microorganism sampling device

Abstract

The utility model relates to a portable drinking water microorganism sampling device, which comprises a body, a sampling component, a metering pump, a control unit, a display unit and a power supply, when the portable drinking water microorganism sampling device is used, the water quality of a water body needing to be sampled is extracted by the metering pump through the control unit, and when the sampled water passes through the sampling component, the water quality is displayed by the display unit. Microorganisms can be enriched on the filter disc, the sampling water can be stopped from being pumped after the required amount of water is collected, and the display unit can display the water taking state of the current sampling device. By means of the mode, automatic sampling of the sampling device is achieved, repeated sampling is not needed, one-way one-time sampling is achieved, microorganisms are enriched to the filter disc in the sampling process, follow-up microorganism research of sampled water can be facilitated by taking out the filter disc, and the sampling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of water quality monitoring, in particular to a portable drinking water microorganism sampling device. Background Art

[0002] In daily production, work and life, it is often necessary to test various water qualities. Common water quality tests include production wastewater, seawater, fishery water, aquaculture, swimming pool water, irrigation water, drinking water, groundwater, industrial water, etc. In some deep-water aquaculture environments, the water quality varies due to different water depths, especially the distribution of microorganisms.

[0003] The existing publication number CN 218725698 U, "A Water Quality Detection Sampler", provides a sampler with a similar syringe structure, which utilizes the air pressure change caused by the relative movement of the extraction part and the extension part to extract the sampled water. The problem with this method is that it is necessary to repeatedly extract water samples to meet the water volume requirement for sampling. The sampler cannot be disinfected in time during the multiple sampling processes. Due to repeated extractions, sampling cannot be maintained in the same area. This method will cause changes in the microbial content in the water quality, which will be different from the actual distribution of microorganisms in the water quality, affecting the detection after sampling, and the sampling effect is poor. Utility Model Content

[0004] In view of the above problems, the utility model provides a portable drinking water microorganism sampling device, which solves the problem that the existing water quality sampling requires repeated extraction, resulting in poor sampling effect.

[0005] To achieve the above-mentioned objectives, the present application provides a portable drinking water microorganism sampling device, comprising a main body, a sampling component, a metering pump, a control unit, a display unit and a power supply, wherein a water inlet and a water outlet are provided on the main body; the sampling component is arranged between the water inlet and the water outlet, the sampling component comprises a first cover body, a second cover body and a filter disc, the first cover body and the second cover body are detachably connected, a first pipeline is provided on the first cover body, the first pipeline is connected to the water outlet, a second pipeline is provided on the second cover body, the second pipeline is connected to the water inlet, the first cover body and the second cover body are separated by a filter disc, and a water permeable hole is provided on the filter disc; the metering pump is arranged on the main body, the metering pump is connected to the second pipeline; the control unit is electrically connected to the metering pump; the display unit is electrically connected to the control unit, and the display unit is arranged on the main body; the power supply is electrically connected to the control unit, the metering pump and the display unit.

[0006] In some embodiments, a first ring protrusion and a second ring protrusion are provided on the first cover body, the diameter of the first ring protrusion is larger than that of the second ring protrusion, the first ring protrusion and the second ring protrusion are coaxially arranged, and the second ring protrusion is arranged on the side of the first cover body away from the first pipeline; a third ring protrusion is provided on the second cover body, the diameter of the third ring protrusion is the same as the diameter of the first ring protrusion, and the inner wall of the third ring protrusion is consistent with the outer wall of the second ring protrusion; a filter is provided on the second ring protrusion.

[0007] In some embodiments, the sampling assembly further includes a gasket, which is disposed on the second cover body and on the inner side of the third ring protrusion, and the gasket is adapted to the diameter of the second ring protrusion.

[0008] In some embodiments, the outer side wall of the second annular protrusion is provided with an external thread, the inner side wall of the third annular protrusion is provided with an internal thread, and the second annular protrusion is connected to the third annular protrusion through threads.

[0009] In some embodiments, the first cover and / or the second cover and / or the first pipeline and / or the second pipeline and / or the gasket are made of polytetrafluoroethylene; or, the first cover and / or the second cover and / or the first pipeline and / or the second pipeline are made of stainless steel.

[0010] In some embodiments, a sterilization component is also included, which is arranged on the main body and is used to sterilize the sampling component; a first placement area is provided on the main body, and the sterilization component is embedded in the first placement area, and the sampling component is placed in the sterilization component; a first cover plate is also provided on the main body, and the first cover plate is hinged to the main body, and the first cover plate is used to cover the first placement area.

[0011] In some embodiments, the sterilization component includes a shell, an ozone generator and a filter. The shell includes a first half shell and a second half shell. The first half shell is hinged to the second half shell. The first half shell has a first cavity, and the second half shell has a second cavity. The first cavity and the second cavity form a chamber after the first half shell and the second half shell are docked. A first opening is provided on the top of the first half shell, and a first pipeline is airtightly connected to the first opening. A second opening is provided on the top of the second half shell, and the second pipeline is airtightly connected to the second opening. The sampling component is placed in the shell; the ozone generator has a first output port, which is connected to the shell, and the ozone generator is used to generate ozone to disinfect the sampling component; the filter has a second output port, which is connected to the shell, and the first output port and the second output port are relatively arranged on both sides of the shell.

[0012] In some embodiments, the device further comprises a sampling bucket, which is connected to the water outlet and has a scale thereon, and is used to collect water of different volumes.

[0013] In some embodiments, a second placement area is further provided on the main body, a sampling bucket is provided in the second placement area, and a second cover is further provided on the main body, the second cover is hinged to the main body, and the second cover is used to cover the second placement area.

[0014] In some embodiments, the device further comprises a handle, which is hinged to the top of the body, and a first groove is provided on the upper surface of the body, and the handle is hinged to the body in the first groove.

[0015] Different from the prior art, in the above technical scheme, the device includes a main body, a sampling component, a metering pump, a control unit, a display unit and a power supply, and the main body is provided with a water inlet and a water outlet; the sampling component is arranged between the water inlet and the water outlet, the sampling component includes a first cover body, a second cover body and a filter, the first cover body and the second cover body are detachably connected, a first pipeline is provided on the first cover body, the first pipeline is connected to the water inlet, a second pipeline is provided on the second cover body, the second pipeline is connected to the water outlet, the first cover body and the second cover body are separated by a filter, and the filter is provided with a water permeable hole; the metering pump is arranged on the main body, and the metering pump is connected to the second pipeline; the control unit is electrically connected to the metering pump; the display unit is electrically connected to the control unit, and the display unit is arranged on the main body; the power supply is electrically connected to the control unit, the metering pump and the display unit. When in use, the control unit is used to extract water from the water body that needs to be sampled through a metering pump. When the sampled water passes through the sampling component, the microorganisms will be enriched on the filter disc. The sampled water will stop being extracted after the required amount of water is collected, and the display unit will display the current water collection status of the sampling device. This method realizes the automatic sampling of the sampling device, and there is no need for multiple reciprocating sampling, but a one-time sampling in one direction. During the sampling process, the microorganisms are enriched on the filter disc. The filter disc can be removed to facilitate the subsequent microbial research of the sampled water, thereby improving the sampling efficiency.

[0016] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the utility model. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the utility model, and then implement it according to the text of the specification and the contents recorded in the drawings, and in order to make the above-mentioned purpose and other purposes, features and advantages of the utility model easier to understand, the specific implementation method and drawings of the utility model are explained below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limitations of the present invention.

[0018] In the drawings of the specification:

[0019] Figure 1 is a first schematic diagram of the sampling device according to the specific implementation mode;

[0020] Figure 2 is a second schematic diagram of the sampling device according to the specific implementation mode;

[0021] Figure 3 is a first schematic diagram of the sampling assembly according to the specific embodiment;

[0022] Figure 4 is a second schematic diagram of the sampling assembly according to the specific embodiment;

[0023] Figure 5 is a third schematic diagram of the sampling assembly according to the specific embodiment;

[0024] Figure 6 It is a first schematic diagram of the sterilization assembly according to the specific implementation mode;

[0025] Figure 7 It is a second schematic diagram of the sterilization component described in the specific implementation method.

[0026] The reference numerals in the above drawings are described as follows:

[0027] 1. Ontology;

[0028] 11. Water outlet;

[0029] 12. Water inlet;

[0030] 2. Sampling components;

[0031] 21. a first cover;

[0032] 211, first ring convex;

[0033] 212, second ring convex;

[0034] 22. A second cover;

[0035] 221, the third ring convex;

[0036] 23. Filter disc;

[0037] 231. Water-permeable hole;

[0038] 24. First pipeline;

[0039] 25. Second pipeline;

[0040] 26. Pad;

[0041] 3. Metering pump;

[0042] 4. Control unit;

[0043] 5. Display unit;

[0044] 6. Power supply;

[0045] 7. Sterilization components;

[0046] 71. Shell;

[0047] 711, first half shell;

[0048] 712, second half shell;

[0049] 713. First opening;

[0050] 714, second opening;

[0051] 72. Ozone generator;

[0052] 721, first output port;

[0053] 73. Filter;

[0054] 731. Second output port. DETAILED DESCRIPTION

[0055] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purposes and effects that can be achieved of the present invention, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention.

[0056] Reference to "embodiment" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The word "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present invention, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0057] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which the present invention belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit the present invention.

[0058] In the description of the present invention, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in a logical relationship of "or".

[0059] In the present invention, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0060] Without further restrictions, in the present invention, the words "include", "comprises", "has" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0061] Similar to the understanding in the Examination Guidelines, in the present invention, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of the present invention, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0062] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0063] Unless otherwise expressly specified or limited, in the description of the embodiments of the present utility model, the terms "install", "connect", "connect", "fix", "set" and the like used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the technical field of the present utility model, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0064] See also Figures 1 to 7 The present embodiment provides a portable drinking water microorganism sampling device, including a body 1, a sampling assembly 2, a metering pump 3, a control unit 4, a display unit 5 and a power supply 6. The body 1 is provided with a water inlet 12 and a water outlet 11; the sampling assembly 2 is arranged between the water inlet 12 and the water outlet 11, and the sampling assembly 2 includes a first cover 21, a second cover 22 and a filter 23. The first cover 21 and the second cover 22 are detachably connected. The first cover 21 is provided with a first pipeline 24, and the first pipeline 24 is connected to the outlet. The water inlet 11 is connected, a second pipeline 25 is provided on the second cover body 22, the second pipeline 25 is connected to the water inlet 12, the first cover body 21 and the second cover body 22 are separated by a filter 23, and a water permeable hole 231 is provided on the filter 23; the metering pump 3 is arranged on the main body 1, and the metering pump 3 is connected to the second pipeline 25; the control unit 4 is electrically connected to the metering pump 3; the display unit 5 is electrically connected to the control unit 4, and the display unit 5 is arranged on the main body 1; the power supply 6 is electrically connected to the control unit 4, the metering pump 3, and the display unit 5.

[0065] In this embodiment, the body 1 of the sampling device is as follows Figure 1 and Figure 2 As shown, the body 1 can be a box structure with a certain size. Optionally, when the sampling device is too large, universal wheels or rollers can be provided at the bottom of the body 1 to facilitate the transportation of the entire sampling device. A water inlet 12 and a water outlet 11 are provided on the body 1. In some optional embodiments, the water inlet 12 can be equipped with a dedicated water pipe to facilitate sampling in water bodies of different depths. A water bucket can be provided at the water outlet 11, or a dedicated water pipe can be provided at the water outlet 11 to transport the extracted water to other containers.

[0066] A sampling assembly 2 is provided between the water inlet 12 and the water outlet 11. The sampling assembly 2 can be provided inside the body 1. The sampling assembly 2 specifically includes a first cover 21, a second cover 22 and a filter 23. Figures 3 to 5As shown, the first cover body 21 and the second cover body 22 can be covered together as a whole, and the filter plate 23 is clamped at the connection between the first cover body 21 and the second cover body 22 to divide the first cover body 21 and the second cover body 22. A water-permeable hole 231 is provided on the filter plate 23. This method enables water to pass through the filter plate 23 to reach the water outlet 11. Optionally, the aperture size of the water-permeable hole 231 can be adjusted according to actual needs, that is, a plurality of filter plates 23 can be arranged, and the aperture size of the water-permeable hole 231 on each filter plate 23 is different. The filter plate 23 with the corresponding aperture size is selected according to actual needs, and the aperture size of the water-permeable hole 231 is 2-4nm. It should be noted that the filter disc 23 can be set to enrich the microorganisms in the water body on the filter disc 23 during the process of extracting the water body. In the subsequent water sample research operation, the filter disc 23 can be taken out from the sampling component 2 to further study the distribution of microorganisms in the water body; at the same time, after the filter disc 23 is removed, the problem of mutual contamination between sampled water bodies caused by multiple uses of the filter disc 23 can be reduced, making the detection of each batch of sampled water bodies more accurate. Further, a first pipeline 24 is provided on the first cover body 21, and the first pipeline 24 is connected to the water outlet 11. A second pipeline 25 is provided on the second cover body 22, and the second pipeline 25 is connected to the water inlet 12. The first pipeline 24 and the second pipeline 25 can be made of soft materials.

[0067] In this embodiment, a metering pump 3, a display unit 5, a control unit 4 and a power supply 6 are also provided, wherein the metering pump 3 can be a peristaltic pump with a metering function, and the metering pump 3 is electrically connected to the control unit 4. When sampling is required, the control unit 4 can control the metering pump 3 to start, and stop extracting after extracting a preset amount of water, so as to realize a one-time extraction of the sampled water volume. The display unit 5 can be a display screen or a touch screen, preferably a touch screen, and the display unit 5 is electrically connected to the control unit 4. The display unit 5 is used to display the amount of water currently being extracted, as well as the status of some other components in the sampling device, such as the start-up time of the metering pump 3, etc. The display unit 5 is Figure 2 As shown, the display screen of the display unit 5 is arranged on the side wall or top surface of the body 1 for the user to check. Further, the power supply 6 is electrically connected to the control unit 4, and the power supply 6 can be a disposable power supply 6 or a rechargeable power supply 6, which can be specifically set according to actual needs. For example, in some small-sized sampling devices, the power supply 6 can be a disposable power supply 6 such as a button battery, and in some large-sized sampling devices, a batch of lithium battery power supplies 6 can also be equipped to realize repeated charging of the power supply 6, extend the number of times a single power is used, and improve the sampling efficiency.

[0068] In this embodiment, when in use, the control unit 4 is used to extract the water quality of the water body in the water body to be sampled through the metering pump 3. When the sampled water passes through the sampling component 2, the microorganisms will be enriched on the filter 23. The sampled water will stop being extracted after the required amount of water is collected, and the display unit 5 will display the current water collection status of the sampling device. This method realizes the automatic sampling of the sampling device, and there is no need to reciprocate multiple samplings, but unidirectional one-time sampling, and the microorganisms are enriched on the filter 23 during the sampling process. Removing the filter 23 can facilitate the subsequent microbial research of the sampled water and improve the sampling efficiency.

[0069] See also Figures 3 to 5 In some embodiments, a first annular protrusion 211 and a second annular protrusion 212 are provided on the first cover body 21, the diameter of the first annular protrusion 211 is larger than that of the second annular protrusion 212, the first annular protrusion 211 and the second annular protrusion 212 are coaxially arranged, and the second annular protrusion 212 is arranged on the side of the first cover body 21 away from the first pipeline 24; a third annular protrusion 221 is provided on the second cover body 22, the diameter of the third annular protrusion 221 is the same as that of the first annular protrusion 211, and the inner side wall of the third annular protrusion 221 coincides with the outer side wall of the second annular protrusion 212; a filter plate 23 is provided on the second annular protrusion 212.

[0070] In this embodiment, the first cover body 21 is provided with a first annular protrusion 211 and a second annular protrusion 212, wherein the first annular protrusion 211 and the second annular protrusion 212 can be understood as a circular ring structure, the diameter of the first annular protrusion 211 is larger than the second annular protrusion 212, and the first annular protrusion 211 and the second annular protrusion 212 are arranged in sequence, and the second cover body 22 is provided with a third annular protrusion 221, and the third annular protrusion 221 has the same diameter as the first annular protrusion 211, that is, the first annular protrusion 211 and the third annular protrusion 221 can form a complete cylindrical structure when covered. Further, as Figures 3 to 5 As shown, in some embodiments, the outer side wall of the second annular protrusion 212 is provided with an external thread, the inner side wall of the third annular protrusion 221 is provided with an internal thread, and the second annular protrusion 212 is connected with the third annular protrusion 221 through a thread. That is, through the threaded connection between the inner side wall of the third annular protrusion 221 and the outer side wall of the second annular protrusion 212, the first cover body 21 and the second cover body 22 can be tightly connected, so that the first cover body 21 and the second cover body 22 form a whole.

[0071] See also Figures 3 to 5 In some embodiments, the sampling assembly 2 further includes a gasket 26 , which is disposed on the second cover body 22 and on the inner side of the third annular protrusion 221 , and the gasket 26 is adapted to the diameter of the second annular protrusion 212 .

[0072] The arrangement of the gasket 26 can ensure that when the first cover 21 and the second cover 22 are covered, the filter disc 23 between the two is airtightly connected to the first cover 21 and the second cover 22, that is, it is prevented that water leaks from the connection gap between the first cover 21 and the second cover 22 during the extraction process, and cannot completely pass through the filter disc 23. This method can improve the enrichment efficiency of microorganisms on the filter disc 23.

[0073] In some embodiments, the first cover 21 and / or the second cover 22 and / or the first pipeline 24 and / or the second pipeline 25 and / or the gasket 26 are made of polytetrafluoroethylene; or, the first cover 21 and / or the second cover 22 and / or the first pipeline 24 and / or the second pipeline 25 are made of stainless steel.

[0074] In some optional embodiments, the sampling assembly 2 can be detachably connected to the body 1, and sterile sampling of water bodies at different locations can be achieved multiple times by replacing the sampling assembly 2 to avoid mixing of multiple water bodies. In some other optional embodiments, the filter 23 is also detachably connected to the sampling assembly 2, and the sampling assembly 2 and the filter 23 can be sterilized after replacement to achieve multiple sterile uses of the sampling assembly 2, reduce costs, and be more environmentally friendly.

[0075] See also Figure 6 and Figure 7 In some embodiments, a sterilization component 7 is further included, which is arranged on the body 1 and is used to sterilize the sampling component 2; a first placement area is provided on the body 1, in which the sterilization component 7 is embedded, and the sampling component 2 is placed in the sterilization component 7; a first cover is also provided on the body 1, which is hinged to the body 1 and is used to cover the first placement area. The covering of the first cover can reduce the contact time between the first placement area and the external environment, and prevent external dust and impurities from entering the first placement area.

[0076] For details, please refer to Figure 6 and Figure 7In some embodiments, the sterilization assembly 7 includes a shell 71, an ozone generator 72 and a filter 73. The shell 71 includes a first half shell 711 and a second half shell 712. The first half shell 711 and the second half shell 712 are hinged. The first half shell 711 has a first cavity, and the second half shell 712 has a second cavity. The first cavity and the second cavity form a chamber after the first half shell 711 and the second half shell 712 are connected. The top of the first half shell 711 is provided with a first opening 713, and the first pipeline 24 is airtightly connected to the first opening 713. A second opening 714 is provided on the top of the second half shell 712, the second pipeline 25 is airtightly connected to the second opening 714, and the sampling assembly 2 is placed in the shell 71; the ozone generator 72 has a first output port 721, the first output port 721 is connected to the shell 71, and the ozone generator 72 is used to generate ozone to disinfect the sampling assembly 2; the filter 73 has a second output port 731, the second output port 731 is connected to the shell 71, and the first output port 721 and the second output port 731 are relatively arranged on both sides of the shell 71.

[0077] In this embodiment, the shell 71 may be a rectangular box structure. Specifically, the shell 71 is divided into a first half shell 711 and a second half shell 712. One end of the first half shell 711 and the second half shell 712 are hinged, and the other end can be detachably connected by setting a buckle. The sampling assembly 2 is placed in the shell 71. The top of the first half shell 711 is provided with a first opening 713, and the first opening 713 can be made of silicone. When the first pipeline 24 passes through the first opening 713, the deformation of the silicone can make the first pipeline 24 and the first opening 713 airtightly connected. The first pipeline 24 can move up and down relative to the first opening 713. Similarly, the top of the second half shell 712 is provided with a second opening 714, and the second opening 714 can be made of silicone. The second pipeline 25 passes through the first opening 713 and is connected to the water inlet 12, and the second pipeline 25 can move relative to the second opening 714.

[0078] An ozone generator 72 and a filter 73 are provided on the outside of the shell 71. The present embodiment uses the principle of ozone sterilization to disinfect the sampling component 2. The ozone generator 72 generates ozone after being powered on, and the ozone is passed into the shell 71 from the first output port 721. It should be noted that when disinfection is required, the first cover 21 and the second cover 22 of the sampling component 2 need to be opened to expose the internal filter 23 and the inner walls of the first pipeline 24 and the second pipeline 25. Ozone can sterilize the interior of the sampling component 2. After sufficient disinfection and sterilization, the filter 73 extracts and filters the ozone in the shell 71, and absorbs the residual ozone using a material with adsorption function such as activated carbon.

[0079] By providing the sterilization component 7, the sampling component 2 can be sterilized. When the filter 23 needs to be replaced, the shell 71 is opened and the filter 23 of the sampling component 2 is replaced in the shell 71. The whole operation is convenient and quick.

[0080] In some embodiments, the device further includes a sampling bucket, which is connected to the water outlet 11, and is provided with a scale, and the sampling bucket is used to collect water of different volumes. Further, in some embodiments, the body 1 is provided with a second placement area, and the second placement area is provided with a sampling bucket, and the body 1 is provided with a second cover plate, which is hinged to the body 1, and the second cover plate is used to cover the second placement area. In this embodiment, the sampling bucket can be a dedicated sterile bucket, and the specifications of the sampling bucket can be set according to actual needs.

[0081] In some embodiments, the device further includes a handle, which is hinged to the top of the body 1. The upper surface of the body 1 is provided with a first groove, and the handle is hinged to the body 1 in the first groove. The handle is provided at the top of the body 1, and by providing the handle, it is convenient for the user to lift and transport the body 1, meeting the actual use needs.

[0082] In the above technical scheme, the device includes a main body 1, a sampling component 2, a metering pump 3, a control unit 4, a display unit 5 and a power supply 6. The main body 1 is provided with a water inlet 12 and a water outlet 11; the sampling component 2 is arranged between the water inlet 12 and the water outlet 11, the sampling component 2 includes a first cover body 21, a second cover body 22 and a filter 23, the first cover body 21 and the second cover body 22 are detachably connected, a first pipeline 24 is provided on the first cover body 21, the first pipeline 24 is communicated with the water inlet 12, the second cover body 22 is provided with a second pipeline 25, the second pipeline 25 is communicated with the water outlet 11, the first cover body 21 and the second cover body 22 are separated by the filter 23, and the filter 23 is provided with a water permeable hole 231; the metering pump 3 is arranged on the main body 1, and the metering pump 3 is communicated with the second pipeline 25; the control unit 4 is electrically connected to the metering pump 3; the display unit 5 is electrically connected to the control unit 4, and the display unit 5 is arranged on the main body 1; the power supply 6 is electrically connected to the control unit 4, the metering pump 3, and the display unit 5. When in use, the control unit 4 extracts water from the water body to be sampled through the metering pump 3. When the sampled water passes through the sampling component 2, the microorganisms will be enriched on the filter 23. The sampled water will stop extracting after the required amount of water is collected, and the display unit 5 will display the current water collection status of the sampling device. This method realizes automatic sampling of the sampling device, and there is no need to reciprocate multiple samplings, but unidirectional one-time sampling, and the microorganisms are enriched on the filter 23 during the sampling process. Removing the filter 23 can facilitate subsequent microbial research on the sampled water and improve sampling efficiency.

[0083] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the utility model, this does not limit the scope of patent protection of the utility model. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of the utility model using the contents recorded in the specification and drawings of the utility model, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of the utility model.

Claims

1. A portable drinking water microbial sampling device, characterized in that: include: A main body, wherein the main body is provided with a water inlet and a water outlet; A sampling assembly is arranged between the water inlet and the water outlet, and the sampling assembly includes a first cover body, a second cover body and a filter disc, the first cover body and the second cover body are detachably connected, a first pipeline is arranged on the first cover body, the first pipeline is communicated with the water outlet, a second pipeline is arranged on the second cover body, the second pipeline is communicated with the water inlet, the first cover body and the second cover body are separated by a filter disc, and the filter disc is provided with a water permeable hole; a metering pump, disposed on the body, the metering pump being in communication with the second pipeline; a control unit, electrically connected to the metering pump; A display unit, electrically connected to the control unit, wherein the display unit is disposed on the body; A power supply is electrically connected to the control unit, the metering pump and the display unit.

2. The portable drinking water microbial sampling device according to claim 1, characterized in that: The first cover body is provided with a first annular protrusion and a second annular protrusion, the diameter of the first annular protrusion is larger than that of the second annular protrusion, the first annular protrusion and the second annular protrusion are coaxially arranged, and the second annular protrusion is arranged on the side of the first cover body away from the first pipeline; The second cover body is provided with a third annular protrusion, the diameter of the third annular protrusion is the same as the diameter of the first annular protrusion, and the inner side wall of the third annular protrusion is consistent with the outer side wall of the second annular protrusion; The filter is arranged on the second annular convexity.

3. The portable drinking water microbial sampling device according to claim 2, characterized in that: The sampling assembly also includes: A gasket is arranged on the second cover body and on the inner side of the third annular protrusion, and the gasket is adapted to the diameter of the second annular protrusion.

4. The portable drinking water microorganism sampling device according to claim 3, characterized in that: The outer side wall of the second annular protrusion is provided with an external thread, the inner side wall of the third annular protrusion is provided with an internal thread, and the second annular protrusion is connected to the third annular protrusion through threads.

5. The portable drinking water microbial sampling device according to claim 4, characterized in that: The material of the first cover body and / or the second cover body and / or the first pipeline and / or the second pipeline and / or the gasket is polytetrafluoroethylene; Alternatively, the first cover body and / or the second cover body and / or the first pipeline and / or the second pipeline are made of stainless steel.

6. The portable drinking water microbial sampling device according to any one of claims 1 to 5, characterized in that: Also includes: A sterilization component, disposed on the body, and used for sterilizing the sampling component; The main body is provided with a first placement area, the sterilization component is embedded in the first placement area, and the sampling component is placed in the sterilization component; The main body is also provided with a first cover plate, the first cover plate is hinged to the main body, and the first cover plate is used to cover the first placement area.

7. The portable drinking water microorganism sampling device according to claim 6, characterized in that: The sterilization assembly comprises: The shell comprises a first half shell and a second half shell, the first half shell is hinged to the second half shell, the first half shell has a first cavity, the second half shell has a second cavity, the first cavity and the second cavity form a chamber after the first half shell and the second half shell are butted against each other, the first half shell is provided with a first opening at the top, the first pipeline is airtightly connected to the first opening, the second half shell is provided with a second opening at the top, the second pipeline is airtightly connected to the second opening, and the sampling assembly is placed in the shell; an ozone generator having a first output port, the first output port being in communication with the housing, the ozone generator being used to generate ozone to sterilize the sampling assembly; The filter has a second output port, the second output port is communicated with the shell, and the first output port and the second output port are arranged on two sides of the shell opposite to each other.

8. The portable drinking water microbial sampling device according to claim 7, characterized in that: The device also includes: A sampling bucket is connected to the water outlet, a scale is provided on the sampling bucket, and the sampling bucket is used to collect water of different volumes.

9. The portable drinking water microbial sampling device according to claim 8, characterized in that: The main body is also provided with a second placement area, in which the sampling bucket is arranged. The main body is also provided with a second cover plate, which is hinged to the main body and used to cover the second placement area.

10. The portable drinking water microorganism sampling device according to claim 9, characterized in that: The device also includes: The handle is hinged to the top of the body, the upper surface of the body is provided with a first groove, and the handle is hinged to the body in the first groove.

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