CN218860716U - Movable sampling box for field filtering and enriching of microorganisms in water body - Google Patents

Abstract

The utility model provides a movable sampling box for on-site filtration and enrichment of microorganisms in a water body, which comprises a box body, a first water inlet pipe, a second water inlet pipe, a drainage box, a filter and a water pump; a water inlet is formed in one side of the box body and is communicated with one end of a first water inlet pipe in the box body, the other end of the first water inlet pipe is communicated with one end of a second water inlet pipe, and a control switch is arranged at the communication position; the drainage box is arranged in the box body and is opened outwards, and a water outlet is formed in the wall of the drainage box; the other end of the second water inlet pipe penetrates through the water outlet and is connected with the filter; the water pump is fixed in the box body, the liquid inlet end of the water pump is communicated with the first water inlet pipe, and the liquid outlet end of the water pump is communicated with the second water inlet pipe; the bottom of the box body is provided with rollers. The novel filter device is integrated in a movable box body, so that the novel filter device is convenient to carry; the electric equipment and the drainage filtering device are isolated from each other to prevent mutual influence; the novel device is suitable for filtering and enriching different types of water samples; the water sample flow and the water pressure can be monitored visually, and the residual water sample is easy to discharge.

Description

Movable sampling box for field filtering and enriching of microorganisms in water body

Technical Field

The utility model relates to a water environment monitoring field especially relates to a portable sampling case of on-spot filtration of water microorganism and enrichment.

Background

In the existing microbiological indicators of the Standard test method for Drinking Water (GB/T5750.12-2006), the method for detecting two insects in drinking water mainly comprises multiple steps of filtering, elution, concentration, separation and purification, fluorescence development, microscopic examination and the like, and the filtering and enrichment of the early-stage water sample are mainly carried out by using a filter bag (Envirochek method) or a filter element (Filta-Max Xpress method).

At present, the determination of microorganisms in domestic drinking water is to collect a water sample with a certain volume, bring the water sample back to a relevant monitoring laboratory for filtering and enriching, and then determine relevant indexes. Meanwhile, because the quantity difference of microorganisms in different water bodies is large, especially when the quantity of the giardia and cryptosporidium in the water body to be monitored is small, the volume of the filtered water sample needs to be increased to enable the quantity of the filtered and enriched water to reach the detection lower limit so as to increase the detection accuracy, and the large quantity of the water sample is inconvenient to carry. Therefore, on-site sampling becomes especially important on the premise that the actual number of the two insects in the water body cannot be known in advance.

In order to filter and enrich a field water sample, a method adopted in the prior art is to carry a water pump, a filter, a pressure gauge and the like to the field for installation respectively, and then filter and enrich the water sample. For example, the Chinese utility model patent 2020202643887 discloses an on-site filtering device for a two-insect water sample, all the parts of the device are exposed outside, the carrying is inconvenient, and the device is easy to damage in transportation; and, when the water sample filters the enrichment, each part of filter equipment is in disorder placed, does not have the waterproof design of relative confined, has very big water sample unrestrained to lead to the risk of short circuit or electric shock to the power.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the field filtering device for the two water samples in the prior art and providing a movable sampling box for field filtering and enrichment of water microorganisms.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a movable sampling box for on-site filtering and enriching microorganisms in a water body comprises a box body, a first water inlet pipe, a second water inlet pipe, a drainage box, a filter and a water pump; the upper part of one side of the box body is provided with a water inlet which is communicated with one end of a first water inlet pipe in the box body, the other end of the first water inlet pipe is communicated with one end of a second water inlet pipe, and a control switch is arranged at the communicated position; the drainage box is arranged in the other side of the box body, one side of the drainage box is opened outwards, and a water outlet communicated with the inside of the box body is formed in the wall of the drainage box; the other end of the second water inlet pipe penetrates through the water outlet and is connected with a filter arranged in the drainage box; the water pump is fixed in the box body, the liquid inlet end of the water pump is communicated with the first water inlet pipe, and the liquid outlet end of the water pump is communicated with the second water inlet pipe; one side of the box body, which is adjacent to the water inlet, is provided with a first box door, and the outer bottom of the box body is also provided with rollers.

The movable sampling box integrates the devices required by water sample filtration into the same box body, so that the movable sampling box is convenient to carry; a first water inlet pipe and a second water inlet pipe which are communicated with each other are arranged, the first water inlet pipe and the second water inlet pipe are respectively communicated with the water pump, and a control switch is arranged at the communication position of the first water inlet pipe and the second water inlet pipe, so that when a water sample with water pressure is filtered directly through the control switch; when the natural water body without water pressure is subjected to pressure, the natural water body can be subjected to filtration and enrichment after being pressurized by a water pump; the drainage box is arranged to separate water sample filtration and drainage from the water pump device, so that the risk of short circuit of a circuit caused by water sample sputtering is prevented; and the bottom of the box body is provided with the roller, so that the box body is convenient to move.

Further, the water pump is fixed on the pump body support, and the pump body support is fixed on the inner wall of the box body.

Furthermore, a drain pipe is also arranged in the box body, the control switch is a three-way control switch, and one end of the drain pipe is respectively communicated with the first water inlet pipe and the second water inlet pipe through the three-way control switch; the wall of the drainage tank is also provided with a water outlet communicated with the interior of the tank body; the other end of the drain pipe is connected with a water outlet of the drain tank.

Further, the second water inlet pipe is positioned at the upper part of the drain pipe.

The second inlet tube is located the upper portion of drain pipe and can be more convenient the remaining water sample in the pipeline of getting rid of after finishing filtering.

Further, still be equipped with the fluidflowmeter who is used for surveing the interior liquid flow of second inlet pipe in the box, fluidflowmeter is equipped with the flow record dial plate, and the flow record dial plate sets up on the upper portion box outer wall of drainage box opening one side.

Furthermore, a second box door is arranged on one side of the box body close to the opening of the drainage box, and an observation window made of transparent materials is arranged at the position, opposite to the flow recording dial plate, of the second box door; the bottom of the second box door is provided with an overflow port.

Further, the rollers are respectively arranged at the bottom of the box body and the bottom of the first box door.

Furthermore, a box door switch is arranged on the first box door or the second box door.

Further, still be equipped with portable power source in the box, water pump and flowmeter all are connected with portable power source electricity.

Further, portable power source fixes on power support, power support fixes on the box inner wall.

Further, still be equipped with in the box and be connected with the portable power source electricity and be used for the module of charging and the electric quantity display module of survey and demonstration electric quantity that charges to it, the module of charging is including charging socket and charge indicator, the display screen of electric quantity display module demonstration electric quantity.

Furthermore, a pre-filter is arranged on the first water inlet pipe close to the water inlet.

The purpose of the pre-filter is to prevent larger particles from entering the pump or filter and causing damage or clogging.

Furthermore, the inner wall of the first box door facing the inner side of the box body is provided with a storage box with an upper opening.

Furthermore, the bottom of the box body is provided with an auxiliary support, one end of the auxiliary support is fixed at the bottom of the box body, and the other end of the auxiliary support extends to a plane where the rollers contact the ground when the box body is horizontally placed.

The supplementary of bottom half props owing to extend to the box when keeping flat the plane at gyro wheel and ground contact place, consequently when the box square, supplementary propping can keep box position relatively fixed, does not take place to remove when filtering and enrichment.

Furthermore, a water pressure gauge is further arranged in the box body and communicated with the second water inlet pipe through a water pressure measuring pipe to measure the water pressure in the second water inlet pipe.

Furthermore, a telescopic stretching rod is arranged on the outer wall of one side, opposite to the first box door, of the box body.

Further, a handle for lifting the box body is fixed at the top of the box body.

Furthermore, the outer part of the corner of the box body is coated with a sheath made of elastic materials.

Compared with the prior art, the beneficial effects of the utility model are that:

the movable sampling box integrates the microorganism filtering device into a movable box body, and is convenient to carry; the electric equipment and the drainage filter are respectively arranged in relatively isolated spaces, so that the influences of a water sample on short circuit corrosion and the like of a related circuit can be prevented; the water sample can be pressurized or not pressurized, and the method is suitable for filtering and enriching water samples of different types; after the filtration and enrichment are finished, residual liquid can be directly discharged, so that the corrosion of the liquid residue on a pipeline and the influence on the subsequent water body filtration and enrichment are prevented; the flow, electric quantity, water pressure and other indexes can be directly recorded in the observation window, and the observation window is more visual.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a perspective view of the portable tool box of the present invention.

Fig. 2 is a schematic side view of the portable tool box of the present invention.

Fig. 3 is a schematic back view of the portable tool box of the present invention.

Fig. 4 is another schematic side view of the portable tool box of the present invention.

Fig. 5 is an angle internal schematic view of the portable tool box of the present invention.

Fig. 6 is another angle internal schematic diagram of the portable tool box of the present invention.

The figure is marked with: 1 is a box body; 11 is a water inlet; 12 is a first box door; 121 is a storage box; 122 is a hinge; 13 is a roller; 14 is a handle; 15 is a stretching rod; 151 is a slide bar; 152 is a chute; 16 is a second door; 161 is a viewing window; 162 is an overflow port; 17 is a door switch; 18 is an auxiliary support; 19 is a sheath; 2 is a first water inlet pipe; 21 is a pre-filter; a second water inlet pipe is 3; 31 is a control switch; 4 is a drain pipe; 5 is a drainage tank; 51 is a water outlet; a drain opening 52; 6 is a filter; 7 is a water pump; 71 is a pump body bracket; 8 is a liquid flowmeter; 81 is a flow recording dial plate; 9 is a mobile power supply; 91 is a power supply bracket; 92 is a charging module; 921 is a charging socket; 922 is a charging indicator light; 93 is an electric quantity display module; 931 a power display screen; 932 power display switch; 10 is a water pressure gauge; 101 is a water pressure measuring tube.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

Referring to fig. 1 and 4-6, one embodiment of the present invention provides a movable sampling box for on-site filtration and enrichment of microorganisms in a water body, comprising a box body 1, a first water inlet pipe 2, a second water inlet pipe 3, a drainage box 5, a filter 6 and a water pump 7; a water inlet 11 is formed in the upper portion of one side of the box body 1, the water inlet 11 is communicated with one end of a first water inlet pipe 2 in the box body 1, the other end of the first water inlet pipe 2 is communicated with one end of a second water inlet pipe 3, and a control switch 31 is arranged at the communicated position; the drainage box 5 is arranged in the other side of the box body 1, one side of the drainage box 5 is opened outwards, and a water outlet 51 communicated with the inside of the box body 1 is formed in the wall of the drainage box 5; the other end of the second water inlet pipe 3 passes through the water outlet 51 and is connected with a filter 6 arranged in the drainage box 5; the water pump 7 is fixed in the box body 1, the liquid inlet end of the water pump 7 is communicated with the first water inlet pipe 2, and the liquid outlet end of the water pump 7 is communicated with the second water inlet pipe 3; a first box door 12 is arranged on one side of the box body 1 adjacent to the water inlet 11, and rollers 13 are further arranged at the outer bottom of the box body 1.

The movable sampling box is convenient to carry by integrating the devices required by water sample filtration in the same box body 1; a first water inlet pipe 2 and a second water inlet pipe 3 which are mutually communicated are arranged and are respectively communicated with a water pump 7, and a control switch 31 is arranged at the communication position of the first water inlet pipe 2 and the second water inlet pipe 3, so that when water with water pressure is filtered, water sample filtration and enrichment can be directly carried out through the control switch 31; when the natural water body without water pressure is subjected to pressure, the natural water body can be subjected to filtration and enrichment after being pressurized by the water pump 7; the drainage box 5 is arranged to separate water sample filtration and drainage from the water pump 7 device, so that short circuit caused by water sample sputtering during filtration is prevented; and the bottom of the box body 1 is provided with a roller 13, so that the box body 1 can be conveniently moved.

In specific implementation process, when needs filter and the enrichment to the water, promote box 1, make gyro wheel 13 rotate near needs filterable water, judge earlier whether the water needs the pressurization, if the survey of running water, because running water itself has water pressure, then can not make water pump 7 work (do not supply power), earlier flow into first inlet tube 2 from water inlet 11 with the running water promptly, open first chamber door 12, the control switch 31 who keeps first inlet tube 2 and the 3 intercommunications of second inlet tube is opened, the water of first inlet tube 2 can flow into second inlet tube 3, need not to open water pump 7 this moment, then the water sample in the second inlet tube 3 gets into the inside filter 6 of drain tank 5, filter and enrichment. When the water body is a natural water body, such as a river of a water source place, a reservoir and the like, because the water pressure of the natural water body is small and is not enough to maintain the requirement of the filter 6 on the water pressure, the first box door 12 needs to be opened, the control switch 31 at the communication part of the first water inlet pipe 2 and the second water inlet pipe 3 is kept closed, the water inlet 11 is externally connected with a water pipe to be below the liquid level of the natural water body, the water pump 7 is opened, the liquid inlet end of the water pump 7 is communicated with the first water inlet pipe 2, the liquid outlet end of the water pump 7 is communicated with the second water inlet pipe 3, the natural water body is pumped into the second water inlet pipe 3 from the first water inlet pipe 2 by the water pump 7 and then enters the filter 6 inside the drainage box 5 for filtration and enrichment, the filter 6 can be a filter with a common replaceable filter element, preferably a portable detachable filter disclosed in application number of 2021228092635, after filtration is completed, the water pump 7 is closed, and microorganisms are intercepted; the first door 12 is closed to remove the residual water sample in the pipe.

Example 2

Referring to fig. 1-6, another embodiment of the present invention provides a movable sampling box for on-site filtration and enrichment of microorganisms in a water body, comprising a box body 1, a first water inlet pipe 2, a second water inlet pipe 3, a drainage box 5, a filter 6 and a water pump 7; a water inlet 11 is formed in the upper portion of one side of the box body 1, the water inlet 11 is communicated with one end of a first water inlet pipe 2 in the box body 1, a pre-filter 21 is further arranged on the first water inlet pipe 2 close to the water inlet 11, and the pre-filter 21 is arranged to prevent larger particles from entering the water pump 7 or the filter 6 to cause damage or blockage; the other end of the first water inlet pipe 2 is communicated with one end of the second water inlet pipe 3, and a control switch 31 is arranged at the communication position; a drain pipe 4 is further arranged in the box body 1, one end of the drain pipe 4 is communicated with the first water inlet pipe 2 and the second water inlet pipe 3, the control switch 31 at the communication position is a three-way control switch, and one end of the drain pipe 4 is respectively communicated with the first water inlet pipe 2 and the second water inlet pipe 3 through the three-way control switch; the second water inlet pipe 3 is positioned at the upper part of the water discharge pipe 4, so that residual water samples in the pipeline can be discharged more conveniently after the filtration is finished, the water discharge box 5 is arranged inside the other side of the box body 1, one side of the water discharge box 5 is opened outwards, and the wall of the water discharge box 5 is provided with a water outlet 51 communicated with the inside of the box body 1; the wall of the drainage box 5 is also provided with a drainage port 52 communicated with the interior of the box body 1; the other end of the drain pipe 4 is connected to a drain port 52 of the drain tank 5. The other end of the second water inlet pipe 3 passes through the water outlet 51 and is connected with a filter 6 arranged in the drainage box 5; the water pump 7 is fixed in the box body 1, specifically, the water pump 7 is fixed on a pump body support 71, and the pump body support 71 is fixed on the inner wall of the box body 1; the liquid inlet end of the water pump 7 is communicated with the first water inlet pipe 2, the liquid outlet end of the water pump 7 is communicated with the second water inlet pipe 3, and the liquid in the first water inlet pipe 2 can be pumped into the second water inlet pipe 3; still be equipped with water pressure gauge 10 in the box 1, water pressure gauge 10 passes through water pressure survey pipe 101 and second inlet tube 3 intercommunication, surveys the water pressure in the second inlet tube 3, through the monitoring water pressure condition, prevents that water pressure is too big to lead to the harm to filter 6. One side of the box body 1 adjacent to the water inlet 11 is provided with a first box door 12, the inner wall of the first box door 12 facing the inner side of the box body 1 is provided with a storage box 121 with an upper opening, and the storage box 121 with an upward opening can be more conveniently used for storing maintenance tools or data recording tables and the like.

The outer bottom of the box body 1 is also provided with a roller 13, and the roller 13 is in rolling connection with the outer bottom of the box body 1 for the purpose of facilitating the position movement of the box body 1; the rollers 13 are preferably disposed at the bottom of the cabinet 1 and the bottom of the first door 12, respectively, to facilitate the opening of the first door 12. The bottom of the box body 1 is also provided with an auxiliary support 18, one end of the auxiliary support 18 is fixed at the bottom of the box body 1, the other end of the auxiliary support 18 extends to the plane where the idler wheel 13 is in contact with the ground when the box body 1 is kept flat, and the auxiliary support 18 at the bottom of the box body 1 extends to the plane where the idler wheel 13 is in contact with the ground when the box body 1 is kept flat, so that when the box body 1 is square, the auxiliary support 18 can keep the position of the box body 1 relatively fixed, and does not move during filtering and enrichment. A telescopic extension rod 15 is arranged on the outer wall of one side of the box body 1 opposite to the first box door 12, the extension rod 15 comprises a sliding rod 151 and a sliding groove 152, the sliding groove 152 is fixed on the outer wall of the box body 1, and the sliding rod 151 is connected with the sliding groove 152 in a sliding manner; when the box body 1 needs to be moved, the stretching pull rod 15 can be pulled upwards to incline the box body 1, the auxiliary support 18 is separated from the ground, so that the suitcase can move similarly, in order to carry the movable sampling box, the handle 14 for lifting the box body 1 is further fixed on the top of the box body 1, the box body 1 can be lifted through the handle 14, and the position of the sampling box can be changed. Since the case 1 may be a cube, and the corner of the case may be relatively sharp when the case is a cube, the corner of the case 1 is covered with a sheath 19 made of an elastic material to reduce damage to the case 1 during a collision.

In the specific implementation process, when the water body needs to be filtered and enriched, the extension pull rod 15 is pulled up to incline the box body 1, the auxiliary support 18 is separated from the ground, so that the suitcase can be moved to the position near the water body similarly, and when the ground is uneven or the suitcase body 1 is not suitable for being dragged, the handle 14 of the suitcase body 1 can be selected to be lifted up to lift the suitcase body 1, so that the position of the sampling suitcase is changed to the position near the water body. Judge earlier whether the water needs the pressurization, if the survey of running water, because running water itself has water pressure, then can not make water pump 7 work, earlier flow into first inlet tube 2 from water inlet 11 with the running water promptly, open first chamber door 12, the control switch 31 that keeps first inlet tube 2 and the 3 intercommunications of second inlet tube is opened, the water of first inlet tube 2 filters the back through leading filter 21 earlier, can flow into second inlet tube 3, need not to open water pump 7 this moment, then the water sample of 3 in the second inlet tube gets into the filter 6 of 5 insides of drain tank, filter and enrichment. When the water is a natural water, such as a river in a water source area, a reservoir, etc., because the water pressure of the natural water is low, and is not enough to maintain the requirement of the filter 6 on the water pressure, the first box door 12 needs to be opened, the control switch 31 at the communication part of the first water inlet pipe 2, the second water inlet pipe 3 and the water discharge pipe 4 is kept closed, i.e., not communicated with each other, the water inlet 11 is externally connected with a water pipe to the position below the liquid level of the natural water, the water pump 7 is opened, the water pump 7 pumps the natural water into the second water inlet pipe 3 after the natural water is filtered by the pre-filter 21 from the first water inlet pipe 2, and then the water enters the filter 6 inside the water discharge box 5 to be filtered and enriched, and whether the water pressure in the second water inlet pipe 3 is normal is observed. The filter 6 can be a common filter with a replaceable filter element, preferably a portable detachable filter as described in application number 2021228092635, after filtration is completed, the water pump 7 is closed, the entrapped microorganisms are treated, the record table in the storage box 121 is taken for relevant recording, such as sampling time, weather, place and the like, and after recording is completed, the record table is put back to the storage box 121; open the control switch 31 of first inlet tube 2 and second inlet tube 3 and drain pipe 4 intercommunication department, keep first inlet tube 2 and second inlet tube 3 and drain pipe 4 to be the intercommunication, remaining water sample in the pipeline can flow out naturally, treat that remaining water sample in the pipeline exhausts the back, close first chamber door 12.

Example 3

Referring to fig. 1 to 6, another embodiment of the present invention adds the following technical features on the basis of embodiment 2: still be equipped with the fluidflowmeter 8 that is used for surveing the interior liquid flow of second inlet tube 3 in the box 1, fluidflowmeter 8 is equipped with flow record dial plate 81, and flow record dial plate 81 sets up on the upper portion box 1 outer wall of 5 opening sides of drainage box. A second box door 16 is arranged on one side of the box body 1 close to the opening of the drainage box 5, the second box door 16 is also rotatably connected with the box body 1 through a hinge 122, and an observation window 161 made of transparent material is arranged at the position of the second box door 16 opposite to the flow recording dial 81; the bottom of the second door 16 is provided with an overflow outlet 162. And a door switch 17 is arranged on the first door 12 or the second door 16.

In a specific implementation, the flow conditions can be observed and recorded in real time through the transparent observation window 161 during filtration and enrichment, the flow recording dial 81 is protected, and the door switch 17 can be adjusted to open or close the first door 12 or the second door 16.

Example 4

Referring to fig. 1-6, another embodiment of the present invention adds the following technical features on the basis of embodiment 2: a mobile power supply 9 is further arranged in the box body 1, the mobile power supply 9 is fixed on a power supply support 91, and the power supply support 91 is fixed on the inner wall of the box body 1; the water pump 7 and the flow meter 8 are electrically connected to the mobile power supply 9, a charging module 92 electrically connected to the mobile power supply 9 and used for charging the mobile power supply and a power display module 93 for measuring and displaying power are further arranged in the box 1, the charging module 92 includes a charging socket 921 and a charging indicator lamp 922, the charging socket 921 is arranged on an outer wall of the box 1, the power display module 93 includes a power display screen 931 and a power display switch 932 for displaying power, the power display screen 931, the power display switch 932 and the charging indicator lamp 922 are arranged at positions opposite to the observation window 161, and power display of the display screen 931 can be observed through the observation window 161. The specific connection circuit between the mobile power supply 9 and each device requiring power supply or charging is the prior art and is not described herein.

In a specific implementation process, the rechargeable mobile power supply 9, such as a lithium battery, can be used to supply power to the water pump 7 or other devices requiring power supply on the premise of no external power supply, and the power condition can be observed in the observation window 161 during use and charging.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it is to be understood that the described embodiments may be modified in various different ways by one of ordinary skill in the art without departing from the spirit and scope of the present invention. The embodiment of the present invention is not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, and simplifications made under the spirit and principle of the present invention should be equivalent replacement modes, and all should be included in the protection scope of the present invention.

Claims (10)

1. A movable sampling box for on-site filtering and enriching microorganisms in a water body is characterized by comprising a box body (1), a first water inlet pipe (2), a second water inlet pipe (3), a drainage box (5), a filter (6) and a water pump (7); a water inlet (11) is formed in the upper portion of one side of the box body (1), the water inlet (11) is communicated with one end of a first water inlet pipe (2) in the box body (1), the other end of the first water inlet pipe (2) is communicated with one end of a second water inlet pipe (3), and a control switch (31) is arranged at the communicated position; the drainage box (5) is arranged inside the other side of the box body (1), one side of the drainage box (5) is opened outwards, and a water outlet (51) communicated with the inside of the box body (1) is formed in the wall of the drainage box (5); the other end of the second water inlet pipe (3) penetrates through the water outlet (51) and is connected with a filter (6) arranged in the drainage box (5); the water pump (7) is fixed in the box body (1), the liquid inlet end of the water pump (7) is communicated with the first water inlet pipe (2), and the liquid outlet end of the water pump (7) is communicated with the second water inlet pipe (3); one side of the box body (1) adjacent to the water inlet (11) is provided with a first box door (12), and the outer bottom of the box body (1) is also provided with rollers (13).

2. The movable sampling box according to claim 1, wherein a drain pipe (4) is further arranged in the box body (1), the control switch (31) is a three-way control switch, and one end of the drain pipe (4) is respectively communicated with the first water inlet pipe (2) and the second water inlet pipe (3) through the three-way control switch; the wall of the drainage box (5) is also provided with a drainage port (52) communicated with the interior of the box body (1); the other end of the drain pipe (4) is connected with a drain port (52) of the drain tank (5).

3. The removable sampling box according to claim 1, characterized in that a liquid flow meter (8) for measuring the liquid flow in the second inlet pipe (3) is further arranged in the box body (1), the liquid flow meter (8) is provided with a flow recording dial (81), and the flow recording dial (81) is arranged on the outer wall of the upper box body (1) at the side of the opening of the drain box (5).

4. The movable sampling box according to claim 2, wherein a second box door (16) is arranged on one side of the box body (1) close to the opening of the drainage box (5), and a viewing window (161) made of transparent material is arranged at the position of the second box door (16) opposite to the flow recording dial plate (81); the bottom of the second box door (16) is provided with an overflow port (162).

5. The movable sampling box according to claim 1, wherein a mobile power supply (9) is further arranged in the box body (1), and the water pump (7) and the flow meter (8) are both electrically connected with the mobile power supply (9).

6. A removable sampling box according to any of claims 1 to 5, characterized in that the first inlet conduit (2) is further provided with a pre-filter (21) adjacent to the inlet opening (11).

7. The movable sampling box according to any of claims 1 to 5, characterized in that the inner wall of the first box door (12) facing the inside of the box body (1) is provided with an open-topped storage box (121).

8. The movable sampling box according to any one of claims 1 to 5, characterized in that the bottom of the box body (1) is provided with an auxiliary support (18), one end of the auxiliary support (18) is fixed at the bottom of the box body (1), and the other end of the auxiliary support extends to the plane where the rollers (13) contact the ground when the box body (1) is laid flat.

9. The movable sampling box according to any one of claims 1 to 5, characterized in that a water pressure gauge (10) is further arranged in the box body (1), and the water pressure gauge (10) is communicated with the second water inlet pipe (3) through a water pressure measuring pipe (101) to measure the water pressure in the second water inlet pipe (3).

10. The movable sampling box according to any one of claims 1 to 5, characterized in that a telescopic stretching rod (15) is arranged on the outer wall of the box body (1) at the side opposite to the first box door (12).

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