A miniature in-situ sampling device

Abstract

The present disclosure provides a miniature in-situ sampling device, which relates to the technical field of sampling devices. The miniature in-situ sampling device includes a lower shell and an upper shell, wherein the upper and lower sides of the lower shell are separated into an upper cavity and a lower cavity, and a filter is arranged on the inner side of the circumference of the lower cavity, and the circumference of the lower cavity has a hollow through hole, and a sampling water pump is also arranged inside the upper cavity; the upper shell is sealed and connected to the upper end opening of the lower shell, and the upper end of the upper shell is sealed and connected to a liquid storage bag, and the liquid storage bag is connected to the sampling water pump; under the power of the sampling water pump, the external environment liquid is sequentially pumped into the liquid storage bag through the hollow through hole, the filter, the lower cavity and the sampling water pump. With this solution, the overall structure is small in size, easy to carry, and water sampling is more convenient and fast.

Description

Technical Field

[0001] The present disclosure relates to the technical field of sampling devices, and in particular to a miniature in-situ sampling device. Background Art

[0002] A water sampler is a special tool used to collect water samples for subsequent water quality analysis. Water samplers can be used to monitor the water quality of tap water, rivers, lakes, oceans and other water bodies, and provide necessary data support for environmental monitoring, water quality evaluation, pollution control, etc. By collecting and analyzing water samples, it is possible to evaluate the chemical composition, physical properties, microorganisms and other indicators of the water body, quantitatively evaluate the water quality characteristics of the water body, and timely warn and respond to water pollution and other problems. When using existing in-situ samplers, the equipment is large in size and sampling is inconvenient. Utility Model Content

[0003] The present disclosure provides a miniature in-situ sampling device to at least solve the above technical problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, there is provided a miniature in-situ sampling device, comprising: a lower shell and an upper shell, wherein the upper and lower sides of the lower shell are separated into an upper cavity and a lower cavity, and a filter is arranged on the inner side of the circumference of the lower cavity, the circumference of the lower cavity has hollow holes, and a sampling water pump is also arranged inside the lower cavity; the upper shell is sealed and connected to the upper opening of the lower shell, and the upper end of the upper shell is sealed and connected to a liquid storage bag, and the liquid storage bag is connected to the sampling water pump; under the power of the sampling water pump, the external environment liquid is pumped into the liquid storage bag through the hollow holes, the filter, the lower cavity and the sampling water pump in sequence.

[0005] In one embodiment, the water inlet of the sampling water pump is connected to a water suction pipe, the water outlet of the sampling water pump is connected to a water outlet pipe, the water inlet of the water suction pipe is arranged at the upper end of the filter net, and the water outlet of the water outlet pipe is connected to the water inlet of the liquid storage bag.

[0006] In one possible implementation manner, a control circuit board and a power supply are further disposed inside the lower shell, the control circuit board is connected to the power supply, and the control circuit board controls the connection to the sampling water pump.

[0007] In one embodiment, the power supply is disposed in a connecting groove inside the upper cavity of the lower shell, a first support frame is overlapped on the top surface of the connecting groove, the first support frame includes a first plane and a support column connected to the first plane, and the sampling water pump is installed on the first plane.

[0008] In one embodiment, a second support frame is provided at the upper end of the sampling water pump, the second support frame includes a second plane and a fixing frame connected to the second plane, the fixing frame is used to connect the control circuit board, and the second plane is connected to the upper end of the sampling water pump.

[0009] In one possible implementation manner, a preset safety distance is left between the second plane and the support column.

[0010] In one possible implementation manner, a charging port and a light guide column are disposed on the upper side wall of the upper shell, and both the charging port and the light guide column are connected to the control circuit board.

[0011] In one possible implementation, a plurality of hanging rings are connected to the outer portion of the upper side of the upper shell in a circular array, and the upper end of each hanging ring is connected to a hanging rope; a connecting ring is provided at the lower portion of the hanging rope, and the connecting ring is connected to the liquid storage bag via a cable tie; a switch control wire is woven inside the hanging rope, and the switch control wire is connected to a magnetic switch, and the magnetic switch controls the connection to the sampling water pump.

[0012] In one possible implementation manner, an anti-collision ring is fixedly sleeved on the outer side of the connection between the lower shell and the upper shell, and an upper cover sealing ring is provided on the inner side of the connection between the lower shell and the upper shell.

[0013] In one possible implementation manner, a tray is sealedly connected to the lower side of the lower cavity of the lower shell, and a lower cover sealing ring is provided at the connection between the tray and the lower shell.

[0014] The miniature in-situ sampling device disclosed in the present invention has a small overall structure and is easy to carry. When water sampling is required, the device floats on the water surface and the sampling water pump is started. The sampling water pump can draw water into the liquid storage bag, and then the overall structure can be lifted out of the water surface and the water bag can be removed to complete the sampling, making water sampling more convenient and quick.

[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0017] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0018] Figure 1The cross-sectional structure of the micro in-situ sampling device of the embodiment of the present disclosure is shown. Figure 1 ;

[0019] Figure 2 The cross-sectional structure of the micro in-situ sampling device of the embodiment of the present disclosure is shown. Figure 2 ;

[0020] Figure 3 A schematic diagram of the axial structure of the miniature in-situ sampling device according to an embodiment of the present disclosure is shown;

[0021] Figure 4 A schematic diagram of the axial structure of a fixing frame in a miniature in-situ sampling device according to an embodiment of the present disclosure is shown;

[0022] Figure 5 A schematic diagram of the axial structure of a fixing frame in a miniature in-situ sampling device according to an embodiment of the present disclosure is shown.

[0023] Description of the numbers in the figure:

[0024] 001-micro in-situ sampling device; 1-lower shell; 11-upper cavity; 12-lower cavity; 13-filter; 121-hollow through hole; 14-sampling water pump; 2-upper shell; 4-liquid storage bag; 3-control circuit board; 5-power supply; 15-connecting slot; 16-first support frame; 161-first plane; 162-support column; 17-second support frame; 171-second plane; 172-fixed frame; 21-charging port; 22-light guide column; 6-hanging ring; 7-hanging rope; 8-connecting ring; 9-cable tie; 10-magnetic switch; 101-anti-collision ring; 102-upper cover sealing ring; 103-tray; 104-lower cover sealing ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0026] Various embodiments of the present disclosure may be presented in the form of a range. It should be understood that the description in the form of a range is only for convenience and simplicity and should not be understood as a hard limit to the scope of the present disclosure; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which are applicable regardless of the range. In addition, whenever a numerical range is indicated in the present disclosure, it is meant to include any quoted numbers (fractions or integers) within the indicated range. Unless otherwise specifically stated, various raw materials, reagents, instruments and equipment used in the present disclosure, etc., can be purchased from the market or can be prepared by existing equipment.

[0027] In the present disclosure, in the absence of any contrary instructions, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the present disclosure, the terms "include", "comprise", etc. mean "including but not limited to". In the present disclosure, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the present disclosure, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A and B can be singular or plural. In the present disclosure, "at least one" means one or more, and "plural" means two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular items or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc or abc, where a, b, c can be single or plural, respectively.

[0028] Reference Figure 1-Figure 5The embodiment of the present disclosure provides a miniature in-situ sampling device 001, comprising: a lower shell 1 and an upper shell 2, wherein the upper and lower sides of the lower shell 1 are separated by an upper cavity 11 and a lower cavity 12, specifically, the upper cavity 11 and the lower cavity 12 are separated by a partition, and the lower shell 1 of the embodiment of the present disclosure can be made by injection molding, or it can be assembled by multiple parts. In addition, the miniature in-situ sampling device 001 of the embodiment of the present disclosure is provided with a filter screen 13 on the inner side of the circumference of the lower cavity 12, and the circumference of the lower cavity 12 has a hollow through hole 121, and illustratively, the mesh of the filter screen 13 is smaller than the aperture of the hollow through hole 121. In addition, in order to realize the sampling function, a sampling water pump 14 is also provided inside the lower cavity 12 of the miniature in-situ sampling device 001 of the embodiment of the present disclosure; since the whole device is placed in water to complete the sampling, considering the sealing performance of the whole device, the upper shell 2 is sealed and connected to the upper end opening of the lower shell 1. In addition, the upper end of the upper shell 2 is sealed and connected to a liquid storage bag 4, and the liquid storage bag 4 is connected to a sampling water pump 14; under the power of the sampling water pump 14, the external environmental liquid is pumped into the liquid storage bag 4 through the hollow through hole 121, the filter screen 13, the lower cavity 12 and the sampling water pump 14 in sequence.

[0029] Exemplarily, the filter 13 uses an existing filter on the market, and the filter 13 can filter mud, algae or large particles of dirt in the water.

[0030] In summary, the miniature in-situ sampling device 001 of the embodiment of the present disclosure has a small structure and is easy to carry. When water sampling is required, the device floats on the water surface and the sampling water pump 14 is started. The sampling water pump 14 can draw water into the liquid storage bag 4, and then the entire structure can be lifted out of the water surface and the water bag can be removed to complete the sampling, making water sampling more convenient and quick.

[0031] In order to further realize a small structure volume, easy portability, and convenient application for underwater sampling, the embodiments of the present disclosure make the following limitations on the micro in-situ sampling device.

[0032] Specifically, although not shown in the figure, the disclosed embodiment further includes a water pump and a water outlet pipe. Specifically, the water inlet of the sampling water pump 14 is connected to a water pump, and the water outlet of the sampling water pump 14 is connected to a water outlet pipe. The water inlet of the water pump is arranged at the upper end of the filter 13, and the water outlet of the water outlet pipe is connected to the water inlet of the liquid storage bag 4. In this way, the sampling liquid can be pumped from the external environment into the liquid storage bag 4 under the power of the sampling water pump 14. The disclosed embodiment does not limit the material of the liquid storage bag 4. A rigid material can be used to form a fixed structure, or a flexible material can be used to form a non-fixed structure that adapts to the sampling liquid.

[0033] Specifically, a control circuit board 3 and a power supply 5 are also disposed inside the lower housing 1. The control circuit board 3 is connected to the power supply 5, and the control circuit board 3 controls the connection to the sampling water pump 14. The control circuit board 3 can be used to control the power supply 5 to turn the sampling water pump 14 on and off.

[0034] Exemplarily, the control circuit board 3 adopts an existing circuit structure on the market, and a control circuit of the sampling water pump 14 is welded on the upper end thereof.

[0035] Specifically, the power source 5 is arranged in the connection groove 15 inside the upper cavity 11 of the lower shell 1. For example, the power source 5 adopts a rechargeable battery. In addition, the top surface of the connection groove 15 is overlapped with a first support frame 16, the first support frame 16 includes a first plane 161 and a support column 162 connected to the first plane 161, and the sampling water pump 14 is installed on the first plane 161; the upper end of the sampling water pump 14 is provided with a second support frame 17, the second support frame 17 includes a second plane 171 and a fixing frame 172 connected to the second plane 171, the fixing frame 172 is used to connect the control circuit board 3, and the second plane 171 is connected to the upper end of the sampling water pump 14; a preset safety distance is reserved between the second plane 171 and the support column 162, and the preset installation distance can facilitate the adjustment of the locking position of the second plane 171 and the sampling water pump 14, and no interference will occur, and the sampling water pump 14 and the control circuit board 3 can be stably installed in the lower shell 1.

[0036] Exemplarily, support columns 162 are symmetrically fixed on both sides of the first support frame 16, and the support columns 162 are limitedly connected to the inner cavity of the lower shell 1. The first support frame 16 can fix the position of the power supply 5 without shaking. The sampling water pump 14 adopts a micro water pump to draw water into the liquid storage bag 4 for sampling.

[0037] Further references Figure 5 , which is an axial side schematic diagram of the fixing frame 172 , the top surface of the fixing frame 172 is provided with a connector interface for convenient plugging of the control circuit board 3 , and a connecting wire extends from the bottom surface of the fixing frame 172 , which can be electrically connected to the sampling water pump 14 .

[0038] The upper side wall of the upper housing 2 is provided with a charging port 21 and a light guide column 22, both of which are connected to the control circuit board 3. The charging port 21 can charge the power supply 5, and the light guide column 22 is connected to the control circuit board 3. The color of the light emitted by the light guide column 22 can display the operating status of the device.

[0039] Furthermore, a plurality of lifting rings 6 are connected to the outer portion of the upper side of the upper shell 2 in a circular array. For example, three lifting rings 6 may be used, and the upper end of each lifting ring 6 is connected to a lifting rope 7; a connecting ring 8 is provided at the lower portion of the lifting rope 7, and the connecting ring 8 is connected to a liquid storage bag 4 via a cable tie 9; the liquid storage bag 4 is a storage device for sampled water, and the lifting ring 6 can be connected to the lifting rope 7, which makes it convenient to manually lower the device to the water surface through the lifting rope 7, and is particularly suitable for places with a large drop between the water surface and the water intake point.

[0040] A switch control wire is woven inside the hanging rope 7. It should be noted that the internal braided wire of the hanging rope 7 can protect the wire and increase the service life of the wire. The switch can control the working state of the sampling water pump 14, and the sampling water pump 14 is also controlled by the circuit control on the control circuit board 3. When the water bag is filled with water, the sampling water pump 14 will stop working.

[0041] Furthermore, the embodiment of the present disclosure further includes a magnetic switch 10. Specifically, the switch control wire is connected to a magnetic switch 10, the magnetic switch 10 is installed on the inner wall of the upper housing 2, and the magnetic switch 10 controls the connection to the sampling water pump 14. The use of the magnetic switch 10 facilitates the realization of the magnetic switch 10 outside the device, which is convenient and quick, and the control circuit board 3 can be turned on or off without disassembling the device.

[0042] Specifically, an anti-collision ring 101 is fixedly sleeved on the outer side of the connection between the lower shell 1 and the upper shell 2. The anti-collision ring 101 can protect the lower shell 1 and the upper shell 2. The anti-collision ring 101 is elastic and can protect the lower shell 1 and the upper shell 2 when colliding with an object. An upper cover sealing ring 102 is provided on the inner side of the connection between the lower shell 1 and the upper shell 2. The upper cover sealing ring 102 can increase the sealing degree of the connection between the lower shell 1 and the upper shell 2, and prevent water from entering the cavity of the lower shell 1 and the upper shell 2. A tray 103 is sealed and connected to the lower side of the lower cavity 12 of the lower shell 1, and a lower cover sealing ring 104 is provided at the connection between the tray 103 and the lower shell 1. The lower cover sealing ring 104 can increase the sealing degree of the connection between the tray 103 and the lower shell 1.

[0043] In summary, when the miniature in-situ sampling device 001 of the embodiment of the present disclosure is working, the overall structure is slowly lowered by the lifting rope 7 until the structure is placed on the water surface. Since the upper shell 2 and the lower shell 1 are internally formed as cavities, the device can float on the water surface. When water sampling is required, the switch at the end of the lifting rope 7 is manually opened to start the sampling water pump 14, and the sampling water pump 14 will draw water into the water bag. Then, the overall structure is manually pulled up by the lifting rope 7, and the water bag is removed to complete the sampling.

[0044] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of this disclosure can be achieved, and this document is not limited here.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood 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 features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A miniature in-situ sampling device, characterized in that: include: A lower shell, wherein the upper and lower sides of the lower shell are separated into an upper cavity and a lower cavity, and a filter is arranged on the inner side of the circumference of the lower cavity, the circumference of the lower cavity has hollow holes, and a sampling water pump is also arranged inside the upper cavity; An upper shell, the upper shell is sealed and connected to the upper opening of the lower shell, the upper end of the upper shell is sealed and connected to a liquid storage bag, and the liquid storage bag is connected to the sampling water pump; Under the power of the sampling water pump, the external environment liquid is pumped into the liquid storage bag through the hollow through hole, the filter screen, the lower cavity and the sampling water pump in sequence.

2. The micro in-situ sampling device according to claim 1, characterized in that: The water inlet of the sampling water pump is connected to a water pumping pipe, the water outlet of the sampling water pump is connected to a water outlet pipe, the water inlet of the water pumping pipe is arranged at the upper end of the filter screen, and the water outlet of the water outlet pipe is connected to the water inlet of the liquid storage bag.

3. The micro in-situ sampling device according to claim 1, characterized in that: A control circuit board and a power supply are also arranged inside the lower shell. The control circuit board is connected to the power supply, and the control circuit board controls the connection to the sampling water pump.

4. The micro in-situ sampling device according to claim 3, characterized in that: The power supply is arranged in a connecting groove inside the upper cavity of the lower shell, and a first supporting frame is overlapped on the top surface of the connecting groove. The first supporting frame includes a first plane and a supporting column connected to the first plane, and the sampling water pump is installed on the first plane.

5. The micro in-situ sampling device according to claim 4, characterized in that: A second support frame is arranged at the upper end of the sampling water pump, and the second support frame includes a second plane and a fixing frame connected to the second plane, the fixing frame is used to connect the control circuit board, and the second plane is connected to the upper end of the sampling water pump.

6. The micro in-situ sampling device according to claim 5, characterized in that: A preset safety distance is left between the second plane and the support column.

7. The micro in-situ sampling device according to claim 3, characterized in that: A charging port and a light guide column are disposed on the upper side wall of the upper shell, and both the charging port and the light guide column are connected to the control circuit board.

8. The micro in-situ sampling device according to claim 1, characterized in that: The upper outer side of the upper shell is connected to a plurality of hanging rings in a circular array, and the upper end of each hanging ring is connected to a hanging rope; a connecting ring is provided at the lower part of the hanging rope, and the connecting ring is connected to the liquid storage bag via a cable tie; a switch control wire is woven inside the hanging rope, and the switch control wire is connected to a magnetic switch, and the magnetic switch controls the connection to the sampling water pump.

9. The micro in-situ sampling device according to claim 1, characterized in that: An anti-collision ring is fixedly sleeved on the outer side of the connection between the lower shell and the upper shell, and an upper cover sealing ring is arranged on the inner side of the connection between the lower shell and the upper shell.

10. The micro in-situ sampling device according to claim 1, characterized in that: A tray is sealed and connected to the lower side of the lower cavity of the lower shell, and a lower cover sealing ring is arranged at the connection between the tray and the lower shell.

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