Water sampling device for water quality detection

Abstract

The utility model provides a water sampling device for water quality detection, which belongs to the technical field of environmental monitoring and comprises a fixing seat, a sampling bottle arranged on the outer surface of the fixing seat and a sampling hose communicated with an inner cavity of the sampling bottle. The sampling mechanism comprises an extrusion assembly used for driving the water body to be transferred into the sampling bottle through the sampling hose, and a positioning assembly used for tightly connecting the sampling hose with the sampling bottle to prevent the sampling hose from falling off in the sampling process. According to the utility model, the extrusion assembly can continuously rotate and extrude the sampling hose through the extrusion roller, ingeniously utilizes pressure difference to drive water to flow to the sampling bottle for water sample collection, and can flexibly meet the sampling requirements of water with different flowability by adjusting parameters such as the rotating speed of the servo motor; the applicability of the device in various water quality detection scenes is improved, the sampling hose and the sampling bottle can be tightly connected through the positioning assembly in the water body sampling process, and water sample leakage is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring technology, specifically relating to a water quality testing and water sampling device. Background Technology

[0002] Water quality testing sampling devices can take samples from different depths of water bodies as needed, such as the surface, middle layer, and bottom layer, to comprehensively understand the water quality changes in the vertical direction. For example, in water bodies such as lakes and reservoirs, water temperature, dissolved oxygen, and pollutant concentrations may differ at different depths. By collecting water samples from different depths, water quality can be assessed more accurately.

[0003] Some existing water sampling devices for water quality testing typically rely on natural flow or simple suction for sampling. This makes it difficult to quickly and flexibly transport water from the testing area to the storage container, potentially leading to prolonged sampling times and impacting the overall progress of the testing work. Furthermore, during the sampling process, factors such as water fluctuations and equipment movement can cause the device's connections to loosen, resulting in water sample leakage. This wastes valuable water resources, severely interferes with subsequent water quality analysis, and significantly reduces the accuracy of the test results, making it difficult to provide precise water quality assessment data. Utility Model Content

[0004] The purpose of this invention is to provide a water quality testing and water sampling device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A water quality testing water sampling device includes a support mechanism, a fixed base, a sampling bottle disposed on the outer surface of the fixed base, and a sampling hose communicating with the inner cavity of the sampling bottle.

[0007] The sampling mechanism includes a squeezing assembly for driving water through the sampling hose to the sampling bottle, and a positioning assembly for tightly connecting the sampling hose to the sampling bottle to prevent it from falling off during sampling.

[0008] As a preferred embodiment of this utility model, the extrusion assembly includes a fixed box fixedly connected to the outer surface of the fixed base, a servo motor adapted to be installed on the outer surface of the fixed box, and a transmission column fixedly connected to the output end of the servo motor via a coupling.

[0009] As a preferred embodiment of this utility model, the extrusion assembly further includes a connecting block fixedly connected to the through end of the transmission column, and extrusion rollers fixedly installed on the inner walls of both sides of the connecting block by bearings and used in conjunction with the sampling hose.

[0010] In a preferred embodiment of this utility model, the outer surface of the sampling hose is fixedly connected to the inner wall of the fixed box, and the other side surface of the sampling hose is in sliding contact with the outer surface of the extrusion roller.

[0011] As a preferred embodiment of this utility model, the positioning component includes an internally threaded tube inserted into the inner wall of the sampling hose, a support plate fixedly sleeved on the outer end face of the internally threaded tube, and a rotating rod fixedly installed on the outer surface of the support plate by a bearing.

[0012] As a preferred embodiment of this utility model, the positioning component further includes a long gear fixedly sleeved on the outer surface of the rotating rod, a short gear meshing with the outer surface of the long gear, and an external threaded tube fixedly connected to the inner surface of the short gear and used in conjunction with the internal threaded tube.

[0013] As a preferred embodiment of this utility model, the positioning component further includes an inclined groove formed on the outer end face of the external threaded pipe, an elastic movable block fixedly installed on the inner wall of the fixed box, an inclined block fixedly connected to the outer end face of the elastic movable block and used in conjunction with the inclined groove, and a torsion spring sleeved on the outer surface of the rotating rod.

[0014] In a preferred embodiment of this utility model, the outer surface of the externally threaded tube is threadedly connected to the inner wall of the internally threaded tube, the outer end face of the torsion spring is fixedly connected to the outer end face of the long gear, and the other end of the torsion spring is fixedly connected to the outer surface of the support plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the extrusion assembly can not only continuously squeeze the sampling hose by the extrusion roller, cleverly using the pressure difference to drive the water to flow to the sampling bottle for water sample collection, but also flexibly meet the sampling needs of different water flow by adjusting parameters such as the speed of the servo motor, thereby improving the applicability of the device in various water quality testing scenarios and providing strong support for diversified water quality testing work. Through the positioning assembly, the sampling hose and the sampling bottle can be tightly connected during the water sampling process, effectively avoiding water sample leakage, so as to ensure the integrity and accuracy of water sample collection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged view of the local structure at point A;

[0019] Figure 3 This is a partial structural diagram of the extrusion assembly in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the internally threaded tube in this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the externally threaded pipe in this utility model.

[0022] In the diagram: 100, bearing mechanism; 101, fixed base; 102, sampling bottle; 103, sampling hose; 200, sampling mechanism; 201, extrusion assembly; 201a, fixed box; 201b, servo motor; 201c, transmission column; 201d, connecting block; 201e, extrusion roller; 202, positioning assembly; 202a, internally threaded tube; 202b, support plate; 202c, rotating rod; 202d, long gear; 202e, short gear; 202f, externally threaded tube; 202g, inclined groove; 202h, elastic movable block; 202i, inclined block; 202j, torsion spring. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Reference Figures 1-5 This is an embodiment of the present invention, which provides a water quality testing water sampling device, comprising:

[0028] The support mechanism 100 includes a fixed base 101, a sampling bottle 102 disposed on the outer surface of the fixed base 101, and a sampling tube 103 communicating with the inner cavity of the sampling bottle 102.

[0029] It should be noted that the mounting base 101 is the basic support component of the entire sampling device, used to install and fix other components such as the sampling bottle 102 to ensure the stability of the device. The sampling bottle 102 is used to store the collected water sample and provide sample storage space for subsequent water quality testing. The sampling hose 103 is the channel for water to enter the sampling bottle from the outside. One end of the sampling hose 103 is connected to the water to be tested, and the other end is connected to the sampling bottle 102.

[0030] The sampling mechanism 200 includes a squeezing assembly 201 for driving water through the sampling hose 103 to the sampling bottle 102, and a positioning assembly 202 for tightly connecting the sampling hose 103 to the sampling bottle 102 to prevent it from falling off during sampling.

[0031] Specifically, the extrusion assembly 201 includes a fixed box 201a fixedly connected to the outer surface of the fixed base 101, a servo motor 201b adapted to be installed on the outer surface of the fixed box 201a, and a transmission column 201c fixedly connected to the output end of the servo motor 201b via a coupling.

[0032] Furthermore, the extrusion assembly 201 also includes a connecting block 201d fixedly connected to the through end of the transmission column 201c, and extrusion rollers 201e fixedly mounted on the inner walls of both sides of the connecting block 201d by bearings and used in conjunction with the sampling hose 103.

[0033] It should be noted that the servo motor 201b is used to drive the transmission column 201c, the connecting block 201d, and the squeezing roller 201e to rotate synchronously. During the rotation of the squeezing roller 201e, the contact area between the squeezing roller 201e and the sampling hose 103 changes continuously. When the squeezing roller 201e squeezes the sampling hose 103, the inner diameter of the sampling hose 103 at the squeezed part becomes smaller, the space inside the tube shrinks, the water is squeezed, and the pressure increases. Meanwhile, the space inside the tube at the unsqueezed part is relatively large, and the pressure is lower. This pressure difference causes the water to flow from the squeezed part with higher pressure to the unsqueezed part with lower pressure, forming a water flow. As the squeezing roller 201e continues to rotate, it continuously squeezes different parts of the sampling hose 103. The pressure difference continuously drives the water to flow along the sampling hose 103 to the sampling bottle 102, and finally enters the sampling bottle 102 to complete the water sample extraction.

[0034] Preferably, the outer surface of the sampling hose 103 is fixedly connected to the inner wall of the fixing box 201a, and the other side surface of the sampling hose 103 is in sliding contact with the outer surface of the squeezing roller 201e.

[0035] It should be noted that the positioning component 202 includes an internally threaded tube 202a inserted into the inner wall of the sampling tube 103, a support plate 202b fixedly sleeved on the outer end face of the internally threaded tube 202a, and a rotating rod 202c fixedly mounted on the outer surface of the support plate 202b by bearings.

[0036] Furthermore, the positioning assembly 202 also includes a long gear 202d fixedly sleeved on the outer surface of the rotating rod 202c, a short gear 202e meshing with the outer surface of the long gear 202d, and an external threaded tube 202f fixedly connected to the inner surface of the short gear 202e and used in conjunction with the internal threaded tube 202a.

[0037] Specifically, the positioning component 202 also includes a slanted groove 202g formed on the outer end face of the external threaded tube 202f, an elastic movable block 202h fixedly installed on the inner wall of the fixed box 201a, a slanted block 202i fixedly connected to the outer end face of the elastic movable block 202h and used in conjunction with the slanted groove 202g, and a torsion spring 202j sleeved on the outer surface of the rotating rod 202c.

[0038] Preferably, the outer surface of the externally threaded tube 202f is threaded to the inner wall of the internally threaded tube 202a, the outer end face of the torsion spring 202j is fixedly connected to the outer end face of the long gear 202d, and the other end of the torsion spring 202j is fixedly connected to the outer surface of the support plate 202b.

[0039] It should also be noted that when rotating the rotating rod 202c drives the long gear 202d to rotate, it can drive the short gear 202e and the external threaded tube 202f to rotate synchronously, thereby causing the external threaded tube 202f to move along the inner wall of the internal threaded tube 202a to a position where it disengages from the elastic movable block 202h, causing the elastic movable block 202h to open through its own elastic force, and at the same time, it can also apply a pressure to the torsion spring 202j.

[0040] When using the device, place the mounting base 101 in a suitable and stable position to ensure the stability of the entire device.

[0041] First, insert the internally threaded tube 202a into the inner wall of the sampling tube 103. Then, rotate the rotating rod 202c to drive the long gear 202d to rotate. The long gear drives the short gear 202e to rotate, which in turn drives the externally threaded tube 202f to rotate synchronously. During the rotation, the externally threaded tube 202f gradually moves to a position away from the elastic movable block 202h, causing the elastic movable block 202h to open through its own elastic force.

[0042] At this point, the sampling tube 103 is inserted into the sampling bottle 102 through the inner wall of the external threaded tube 202f, and the rotating rod 202c is released. The reaction force of the torsion spring 202j drives the rotating rod 202c and the long gear 202d to rotate in opposite directions. Then, the long gear 202d drives the short gear 202e and the external threaded tube 202f to rotate in opposite directions. During the rotation, the external threaded tube 202f gradually moves to a position close to the elastic movable block 202h, and the inclined block 202i at the end of the elastic movable block 202h is squeezed by the inclined groove 202g at its end. This causes the elastic movable block 202h to contract under force and clamp the sampling tube 103, thus completing the connection between the sampling tube 103 and the sampling bottle 102.

[0043] Subsequently, one end of the sampling hose 103 is inserted into the water body to be tested, and the servo motor 201b is started to drive the transmission column 201c to rotate, so that the transmission column 201c drives the connecting block 201d and the squeezing roller 201e to rotate synchronously. When the squeezing roller 201e rotates, it continuously squeezes the sampling hose 103, making the inner diameter of the sampling hose 103 at the squeezed part smaller, increasing the water pressure, while the pressure at the unsqueezed part is lower. Under the action of this pressure difference, the water flows from the squeezed part with higher pressure to the unsqueezed part with lower pressure, and continues to flow along the sampling hose 103 to the sampling bottle 102 until the water sample is extracted.

[0044] After the water sample is extracted, rotate the rotating rod 202c again to drive the external threaded tube 202f out, so as to release the elastic movable block 202h from the limiting position of the sampling hose 103. Then, pull the sampling hose 103 out of the sampling bottle 102 to prepare for subsequent water quality testing.

[0045] In summary, the squeezing assembly 201 not only continuously squeezes the sampling hose 103 by squeezing the squeezing roller 201e, cleverly using the pressure difference to drive the water to flow towards the sampling bottle 102 for water sample collection, but also allows for flexible adaptation to the sampling needs of different water flow types by adjusting parameters such as the rotation speed of the servo motor 201b. This enhances the applicability of the device in various water quality testing scenarios and provides strong support for diverse water quality testing work. Furthermore, the positioning assembly 202 ensures a tight connection between the sampling hose 103 and the sampling bottle 102 during water sampling, effectively preventing water sample leakage and ensuring the integrity and accuracy of water sample collection.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water quality testing water body sampling device, characterized in that: The utility model relates to a water sampling device, including, The utility model relates to a water sampling device, including, The utility model relates to a water sampling device, including, 2. The water quality detection water body sampling device according to claim 1, characterized in that: The utility model relates to a water sampling device, including, 3. The water quality detection water body sampling device according to claim 2, characterized in that: The utility model relates to a water sampling device, including, 4. The water quality detection water body sampling device according to claim 3, characterized in that: The utility model relates to a water sampling device, including, 5. The water quality detection water body sampling device according to claim 4, characterized in that: The utility model relates to a water sampling device, including, 6. The water quality detection water body sampling device according to claim 5, characterized in that: The utility model relates to a water sampling device, including, 7. The water quality detection water body sampling device according to claim 6, characterized in that: ​ 8. The water quality detection water body sampling device according to claim 7, characterized in that: ​

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