A water sample collection device

Abstract

The application discloses a water sample collecting device, which comprises a lifting unit, a collecting unit connected with the lifting unit, and a sealing unit fixedly connected with the collecting unit; the collecting unit comprises a framework assembly, a driving assembly fixedly connected with the framework assembly, and a water storage assembly rotationally connected with the framework assembly; and the sealing unit is used for sealing the water storage assembly. The water sample collecting device has the beneficial effects that the one-way isochronous rotation (or angle) of a servo motor can drive the water storage assembly to rotate, and meanwhile, water samples at different depths can be collected and individually stored; furthermore, the sealing assembly can not only accurately seal the water storage bin of the water sample collected at different depths each time, so as to reduce the possibility of water body pollution during collection, but also can accelerate personnel to identify the depth of the water body stored in the front water storage bin through prompt slogans on the arc-shaped plate, thereby being convenient for subsequent work of the staff. The whole device is convenient and labor-saving in use.

Description

Technical Field

[0001] This invention relates to the technical field of water sampling, and in particular to a water sampling device. Background Technology

[0002] Water sample monitoring refers to the monitoring of the physical properties, metallic compounds, non-metallic inorganic substances, organic compounds, biological substances, and the determination of hydrological and meteorological parameters of environmental water bodies (rivers, lakes, reservoirs, and groundwater, etc.) and water pollution sources (domestic sewage, hospital sewage, and industrial wastewater, etc.), as well as geological monitoring. In order to monitor water quality, the collection and analysis of water samples is an essential process.

[0003] In existing technologies, water sampling devices can only be used for one sampling after being launched into the water. If sampling is to be performed at different depths in the same water area, the sampling device needs to be released and retrieved repeatedly, which makes the operation cumbersome and the sampling efficiency low. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above or prior art, such as the fact that water sampling devices can only perform one sampling after being launched into the water, and that if sampling is to be performed at different depths in the same water area, the sampling device needs to be released and retrieved repeatedly, resulting in cumbersome operation and low sampling efficiency, this invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a water sample collection device, comprising a lifting unit, a collection unit connected to the lifting unit, and a sealing unit fixedly connected to the collection unit;

[0007] The collection unit includes a skeleton assembly, a drive assembly fixedly connected to the skeleton assembly, and a water storage assembly rotatably connected to the skeleton assembly;

[0008] The sealing unit is used to seal the water storage components.

[0009] As a preferred embodiment of the water sample collection device of the present invention, the skeleton assembly includes an upper cover plate and a lower cover plate, a first side plate that is detachably connected to both the upper cover plate and the lower cover plate, and a first fixing block and a second fixing block that are respectively fixedly connected to the upper cover plate via connecting rods.

[0010] The first water inlet is located on the first side plate.

[0011] In a preferred embodiment of the water sample collection device of the present invention, the driving component includes an active component, a transmission component rotatably connected to the active component, and a driven component rotatably connected to the transmission component.

[0012] In a preferred embodiment of the water sample collection device of the present invention, the active component includes a servo motor fixedly connected to the upper cover plate, a drive rod fixedly connected to the output end of the servo motor, and a rotating rod fixedly connected to the drive rod.

[0013] As a preferred embodiment of the water sample collection device of the present invention, the transmission component includes a rotating block that is axially connected to the second fixed block, and a transmission rod that slides through the rotating block.

[0014] One end of the transmission rod is rotatably connected to the rotating rod.

[0015] As a preferred embodiment of the water sample collection device of the present invention, the driven member includes a rotating plate rotatably connected to the transmission rod;

[0016] The rotating plate has protrusions.

[0017] As a preferred embodiment of the water sample collection device of the present invention, the water storage component includes a water storage cavity and a sealed cavity fixedly connected to the water storage cavity through an arc-shaped partition.

[0018] The water storage chamber includes at least two sets of water storage tanks and a closed chamber that is fixedly connected to the water storage tanks by a rectangular partition.

[0019] The sealing cavity is divided into multiple sealing chambers by a second partition, and the number of sealing chambers is the same as the total number of water storage chambers and closed chambers.

[0020] Each of the second side plates facing the sealed cavity of the water storage tank has an opening, and each of the arc-shaped partitions facing the water storage tank has a second water inlet.

[0021] As a preferred embodiment of the water sample collection device of the present invention, the water storage tank further includes a water inlet fixedly connected to the arc-shaped partition, a third water inlet disposed at the water inlet and directly opposite the second water inlet, and positioning holes symmetrically disposed at the water inlet.

[0022] As a preferred embodiment of the water sample collection device of the present invention, the sealed chamber further includes an arc-shaped guide section connected to the first water inlet and the second water inlet.

[0023] As a preferred embodiment of the water sample collection device of the present invention, the sealing unit includes a protective shell fixedly connected to the first side plate, a spring fixedly connected to the inner wall of the protective shell at one end, and no less than two sets of sealing components in contact with the spring.

[0024] The sealing assembly includes an arc-shaped plate and a positioning post fixedly connected to the arc-shaped plate.

[0025] The beneficial effects of this invention are as follows: This invention uses a servo motor to rotate a water storage component in one direction for an equal duration (or angle), which can simultaneously collect and store water samples at different depths. Furthermore, the sealing component can not only accurately seal the water storage tanks where water samples at different depths are collected each time, reducing the possibility of contamination of the collected water, but also use the prompts on the arc-shaped plate to help personnel quickly identify the corresponding depth of the water stored in the previous water storage tank, facilitating subsequent work for the staff. The entire device is easy to operate and saves time and effort during use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0027] Figure 1 This is a schematic diagram of the overall structure of the water sample collection device.

[0028] Figure 2 This is a partial structural diagram of a water sample collection device.

[0029] Figure 3 This is a schematic diagram of the drive component and the water storage component.

[0030] Figure 4 This is a schematic diagram of the overall structure of the water storage component.

[0031] Figure 5 This is a schematic diagram of the internal structure of the sealing unit. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one 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 is mutually exclusive with other embodiments.

[0035] Example 1

[0036] Reference Figures 1-5 This is the first embodiment of the present invention, which provides a water sampling device that can solve the problem in the prior art that the water sampling device can only perform one sampling after being put into the water. When sampling at different depths in the same water area, it is necessary to continuously release and retrieve the sampling device, which results in cumbersome operation and low sampling efficiency.

[0037] Specifically, a water sample collection device includes a lifting unit 100, a collection unit 200 connected to the lifting unit 100, and a sealing unit 300 fixedly connected to the collection unit 200. The positioning device inside the lifting unit 100 can be implemented by existing technology, which can drive the entire water sample collection device to descend or rise to any target depth, which will not be elaborated here.

[0038] The collection unit 200 includes a skeleton assembly 201, a drive assembly 202 fixedly connected to the skeleton assembly 201, and a water storage assembly 203 rotatably connected to the skeleton assembly 201. The drive assembly 202 is used to drive the water storage assembly 203 to rotate along the skeleton assembly 201.

[0039] The sealing unit 300 is used to seal the water storage component 203.

[0040] Furthermore, the frame assembly 201 includes an upper cover plate 201a and a lower cover plate 201b, a first side plate 201c that is detachably connected to both the upper cover plate 201a and the lower cover plate 201b, and a first fixing block 201d and a second fixing block 201e that are fixedly connected to the upper cover plate 201a via a connecting rod 201f. The first side plate 201c has a protrusion for limiting the water storage assembly 203, so that the water storage assembly 203 can only rotate in a plane.

[0041] The first water inlet 201c-1 is provided on the first side plate 201c.

[0042] It should be noted that the skeleton component 201 is fitted onto the water storage component 203 and is always in contact with the outer wall of the water storage component 203. The water storage component 203 can be removed or replaced by disassembling the skeleton component 201.

[0043] Furthermore, the drive assembly 202 includes a driving member 202a, a transmission member 202b rotatably connected to the driving member 202a, and a driven member 202c rotatably connected to the transmission member 202b.

[0044] Furthermore, the active component 202a includes a servo motor 202a-1 fixedly connected to the upper cover plate 201a, a drive rod 202a-2 fixedly connected to the output end of the servo motor 202a-1, and a rotating rod 202a-3 fixedly connected to the drive rod 202a-2. The drive rod 202a-2 passes through the first fixed block 201d, and the first fixed block 201d vertically limits the drive rod 202a-2, so that the drive rod 202a-2 can only rotate by being driven by the servo motor 202a-1 but does not move vertically.

[0045] It should be noted that the servo motor 202a-1 drives the drive rod 202a-2 to rotate, and the rotation of the drive rod 202a-2 drives the rotating rod 202a-3 to perform circular motion.

[0046] Furthermore, the transmission component 202b includes a rotating block 202b-1 that is axially connected to the second fixed block 201e, and a transmission rod 202b-2 that slides through the rotating block 202b-1, wherein the transmission rod 202b-2 can only slide linearly along the direction of the opening 203c-31 of the rotating block 202b-1;

[0047] It should be noted that the transmission rod 202b-2 includes a rod portion that slides through the rotating block 202b-1, a connecting portion that is fixedly connected to the rod portion, and a U-shaped portion that is fixedly connected to the connecting portion.

[0048] One end of the transmission rod 202b-2 is rotatably connected to the rotating rod 202a-3.

[0049] Furthermore, the driven member 202c includes a rotating plate 202c-1 rotatably connected to the transmission rod 202b-2, wherein the rotating plate 202c-1 can only rotate within its own plane;

[0050] The rotating plate 202c-1 is provided with a protrusion 202c-11.

[0051] It should be noted that, driven by the servo motor 202a-1, the transmission rod 202b-2 slides along the rotating block 202b-1. During the sliding process, the transmission rod 202b-2 drives the protrusion 202c-11 through the U-shaped part, which can make the protrusion 202c-11 move along the U-shaped part, that is, the driven member 202c can be rotated by the servo motor 202a-1.

[0052] Furthermore, the water storage assembly 203 includes a water storage chamber 203a and a sealed chamber 203c that is fixedly connected to the water storage chamber 203a via an arc-shaped partition 203b.

[0053] The water storage chamber 203a includes at least two sets of water storage tanks 203a-1 and closed chambers 203a-3 that are fixedly connected to the water storage tanks 203a-1 by rectangular partitions 203a-2, wherein the water storage tanks 203a-1 and the closed chambers 203a-3 are evenly spaced apart.

[0054] Preferably, the water storage tanks 203a-1 and the closed tanks 203a-3 are set at uniform intervals so that the servo motor 202a-1 only needs to start and stop in one direction for an equal duration (or angle) each time, which can accurately collect water into the water storage tanks 203a-1 for storage. Furthermore, the water at different depths can be stored and collected through each independent water storage tank 203a-1, reducing the possibility of water pollution.

[0055] The sealing cavity 203c is divided into multiple sealing chambers 203c-2 by the second partition 203c-1. The number of sealing chambers 203c-2 is the same as the total number of water storage chambers 203a-1 and closed chambers 203a-3.

[0056] Each of the second side plates 203c-3 facing the sealed cavity 203c of the water storage tank 203a-1 is provided with an opening 203c-31, and each of the arc-shaped partition plates 203b facing the water storage tank 203a-1 is provided with a second water inlet 203b-1.

[0057] It should be noted that when the servo motor 202a-1 drives the rotating plate 202c-1 to rotate to a certain position, at this time, the first water inlet 201c-1, the opening 203c-31, and the second water inlet 203b-1 are aligned, allowing water at the current position to sequentially enter the water storage tank 203a-1 through the first water inlet 201c-1, the opening 203c-31, the second water inlet 203b-1, and the third water inlet 203a-12. Water storage; when the servo motor 202a-1 rotates for a certain period of time (or angle), the first water inlet 201c-1 is blocked by the second side plate 203c-3 of the unopened section facing the closed chamber 203a-3, which can not achieve the sampling function and can also reduce the pollution of the collected water. When the second sampling depth is reached, the servo motor 202a-1 makes the next water storage chamber 203a-1 face the first water inlet 201c-1 to collect water.

[0058] Furthermore, the water storage tank 203a-1 also includes a water inlet 203a-11 fixedly connected to the arc-shaped partition 203b, a third water inlet 203a-12 disposed at the water inlet 203a-11 and directly opposite the second water inlet 203b-1, and positioning holes 203a-13 symmetrically disposed at the water inlet 203a-11, wherein the positioning holes 203a-13 cannot penetrate the water inlet 203a-11 and are only formed at a certain depth on the surface.

[0059] It should be noted that the water inlet 203a-11 is hollow inside with sloping sides. The sloping sides are used to guide the collected water and accelerate the entry of the collected water into the water storage tank 203a-1.

[0060] Furthermore, the sealed chamber 203c-2 also includes an arc-shaped guide section 203c-21 connected to the first water inlet 201c-1 and the second water inlet 203b-1. The arc-shaped guide section 203c-21 is also hollow inside, and its two inclined surfaces are collinear with the inclined surface of the water inlet 203a-11. The inclined surfaces are used to guide the collected water and accelerate the entry of the collected water into the water storage chamber 203a-1.

[0061] It should be noted that each data collection is achieved by the servo motor 202a-1 driving the rotating plate 202c-1 to rotate the water storage component 203. The first water inlet 201c-1 rotates from facing the sealed chamber 203c-2 to the closed chamber 203a-3 to the sealed chamber 203c-2 and then to the water storage chamber 203a-1. After the data collection is completed, the servo motor 202a-1 is started to continue rotating for the same amount of time (or angle), so that the first water inlet 201c-1 completes one data collection process from facing the sealed chamber 203c-2 to the closed chamber 203a-3.

[0062] Furthermore, the sealing unit 300 includes a protective shell 301 fixedly connected to the first side plate 201c, a spring 302 fixedly connected to the inner wall of the protective shell 301 at one end, and at least two sets of sealing components 303 in contact with the spring 302. The spring 302 is used in conjunction with the water storage component 203 according to actual needs, so that the spring 302 can always eject the sealing component 303 into the sealing cavity 203c opposite to the water storage tank 203a-1, thereby sealing and preserving the collected water sample inside the water storage tank 203a-1.

[0063] It should be noted that during use, spring 302 gradually returns to its original maximum compressed position and remains compressed even after the entire sampling process is completed. That is, throughout the entire use, spring 302 is in a compressed state, always maintaining an elastic force to seal the water inlet 203a-11.

[0064] The sealing assembly 303 includes an arc-shaped plate 303a and a positioning post 303b fixedly connected to the arc-shaped plate 303a. The positioning post 303b is adapted to the size of the positioning hole 203a-13, the arc-shaped plate 303a is adapted to the cross-sectional size of the arc-shaped guide section 203c-21, and the cross-sectional length of the protective shell 301 is adapted to the size of the arc-shaped plate 303a. This allows the arc-shaped plate 303a to move linearly along the length of the protective shell 301, ultimately causing the arc-shaped plate 303a to engage in the sealing cavity 203c, thereby achieving precise sealing of the water storage tank 203a-1, which has stopped rotating and is facing forward.

[0065] It should be noted that the arc-shaped plate 303a has prompts on it, including the initial position, first collection, second collection, etc. (which are adapted to the number of water storage chambers 203a-1 inside the water storage component 203). Multiple arc-shaped plates 303a are set inside the protective shell 301 in the order of use and the order of the prompts, which can indicate the collection order of the collected water, so as to provide a basis for subsequent testing.

[0066] Preferably, the cross-sectional dimensions of the arc-shaped plate 303a and the arc-shaped guide section 203c-21 are adapted, which not only enables the sealing and preservation of the collected water body without affecting the rotation of the water storage component 203, that is, without affecting the next collection, but also allows the servo motor 202a-1 to complete the entire collection process by rotating unidirectionally in any direction for an equal duration (or angle), and the prompts provide a basis for subsequent testing.

[0067] In use, this device has three operating states. The water storage component 203 can be evenly arranged into several water storage tanks 203a-1 and closed water tanks according to actual needs. The attached figure is only a schematic diagram of the water storage component 203 formed by one type of water storage tanks 203a-1 and closed water tanks.

[0068] In the first operating state (before reaching the first collection depth), water collection is not performed. Before the device reaches the first collection depth, the servo motor 202a-1 rotates, causing the second inlet 203b-1 of one of the water storage tanks 203a-1 to face the sealing unit 300. The first inlet 201c-1 faces the sealing cavity 203c of one of the closed tanks 203a-3, blocking the first inlet 201c-1 and preventing water collection. At this time, the spring 302 resets through the opening 203c-31 on the second side plate 203c-3, pushing the arc-shaped plate 303a with the "initial position" reminder label to move linearly along the protective shell 301. The positioning post 303b engages with the positioning hole 203a-13 to seal the water storage tank 203a-1, the servo motor 202a-1 stops rotating, and the collection unit 200 and the sealing unit 300 remain stationary.

[0069] In the second usage state (collection process), water at the current water level is collected and stored. Upon reaching the first depth, the servo motor 202a-1 is activated to rotate for a certain time or angle (determined by the corresponding water storage component 203). The servo motor 202a-1 drives the drive rod 202a-2 to rotate, which in turn drives the rotating shaft in a circular motion. The rotating shaft then drives the transmission rod 202b-2 to move along the rotating block 202b-1. The rotating rod 202a-3, through the protrusion 202c-11, rotates the rotating plate 202c-1. The rotating plate 202c-1 drives the water storage component 203 to rotate, causing the closed chamber 203a-3, originally facing the first inlet 201c-1, to rotate to the sealing component 303. The sealing chamber 203c-2, directly opposite the closed chamber 203a-3, has no opening, preventing the sealing component 303 from sealing the sealing chamber 203c-2. Spring 302 remains compressed and does not reset further. The first inlet 201c-1 is aligned with the next water storage tank 203a-1. At this time, water at the current depth enters the water storage tank 203a-1 through the first inlet 201c-1, the opening, the second inlet 203b-1, and the third inlet 203a-12. After collecting data for a certain period of time, the servo motor 202a-1 rotates for the same duration (or angle), causing the water storage component 203 to rotate. This rotates the collected water storage tank 203a-1 to the position where the sealing component 303 is aligned. The reset of spring 302 causes the arc-shaped plate 303a with the "first position" reminder label to move linearly along the protective shell 301. The positioning post 303b engages with the positioning hole 203a-13 on the current water storage tank 203a-1 to seal and preserve the water storage tank 203a-1. Repeat the above operations to collect and store water at various depths into the corresponding water storage tank 203a-1 until the collection is complete.

[0070] In the third usage state (collection complete), no water collection is performed. Upon completion of collection, arc-shaped plates 303a with different warning signs seal each water storage chamber 203a-1 after water sample collection. The first inlet 201c-1 is blocked by the second side plate 203c-3 of the sealed chamber 203c-2, which is located opposite the closed chamber 203a-3. This prevents excess water from entering the collection unit 200, reducing contamination of the water storage component 203. The lifting unit 100 then elevates the entire device. Staff can then proceed with subsequent work on the collected water samples.

[0071] In summary, the device of the present invention can drive the water storage component 203 to rotate by the unidirectional, equal-duration (or angular) rotation of a servo motor 202a-1, while simultaneously collecting and storing water samples at different depths. Furthermore, the sealing component 303 can not only accurately seal the water storage tank 203a-1 at different depths each time a water sample is collected, reducing the possibility of contamination of the collected water, but also use the prompts on the arc-shaped plate 303a to help personnel quickly identify the depth of the water stored in the current water storage tank 203a-1, facilitating subsequent work for staff. The entire device is easy to operate and saves time and effort during use.

[0072] 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 proportions 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 the invention. 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 structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0073] 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 invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0074] 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.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water sample collection device, characterized in that: include, Lifting unit (100), collection unit (200) connected to the lifting unit (100), and sealing unit (300) fixedly connected to the collection unit (200). The collection unit (200) includes a skeleton assembly (201), a drive assembly (202) fixedly connected to the skeleton assembly (201), and a water storage assembly (203) rotatably connected to the skeleton assembly (201). The sealing unit (300) is used to seal the water storage component (203); The skeleton assembly (201) includes an upper cover plate (201a) and a lower cover plate (201b), a first side plate (201c) detachably connected to both the upper cover plate (201a) and the lower cover plate (201b), and a first fixing block (201d) and a second fixing block (201e) fixedly connected to the upper cover plate (201a) via a connecting rod (201f). The first water inlet (201c-1) is provided on the first side plate (201c). The water storage component (203) includes a water storage chamber (203a) and a sealed chamber (203c) fixedly connected to the water storage chamber (203a) via an arc-shaped partition (203b). The water storage chamber (203a) includes at least two sets of water storage tanks (203a-1) and a closed chamber (203a-3) that is fixedly connected to the water storage tanks (203a-1) by a rectangular partition (203a-2). The sealed cavity (203c) is divided into multiple sealed chambers (203c-2) by a second partition (203c-1), and the number of sealed chambers (203c-2) is the same as the total number of the water storage chamber (203a-1) and the closed chamber (203a-3). Each of the second side plates (203c-3) of the sealed cavity (203c) opposite to the water storage tank (203a-1) is provided with an opening (203c-31), and each of the arc-shaped partitions (203b) opposite to the water storage tank (203a-1) is provided with a second water inlet (203b-1). The sealing unit (300) includes a protective shell (301) fixedly connected to the first side plate (201c), a spring (302) fixedly connected at one end to the inner wall of the protective shell (301), and at least two sealing assemblies (303) in contact with the spring (302). The sealing assembly (303) includes an arc-shaped plate (303a) and a positioning post (303b) fixedly connected to the arc-shaped plate (303a).

2. The water sampling device as described in claim 1, characterized in that: The drive assembly (202) includes a driving member (202a), a transmission member (202b) rotatably connected to the driving member (202a), and a driven member (202c) rotatably connected to the transmission member (202b).

3. The water sampling device as described in claim 2, characterized in that: The active component (202a) includes a servo motor (202a-1) fixedly connected to the upper cover plate (201a), a drive rod (202a-2) fixedly connected to the output end of the servo motor (202a-1), and a rotating rod (202a-3) fixedly connected to the drive rod (202a-2).

4. The water sampling device as described in claim 3, characterized in that: The transmission component (202b) includes a rotating block (202b-1) that is axially connected to the second fixed block (201e), and a transmission rod (202b-2) that slides through the rotating block (202b-1). One end of the transmission rod (202b-2) is rotatably connected to the rotating rod (202a-3).

5. The water sampling device as described in claim 4, characterized in that: The driven member (202c) includes a rotating plate (202c-1) that is rotatably connected to the transmission rod (202b-2). The rotating plate (202c-1) is provided with a protrusion (202c-11).

6. The water sampling device as described in claim 5, characterized in that: The water storage tank (203a-1) also includes a water inlet (203a-11) fixedly connected to the arc-shaped partition (203b), a third water inlet (203a-12) disposed at the water inlet (203a-11) and directly opposite the second water inlet (203b-1), and positioning holes (203a-13) symmetrically disposed at the water inlet (203a-11).

7. The water sampling device as described in claim 6, characterized in that: The sealed chamber (203c-2) also includes an arc-shaped guide section (203c-21) connected to the first water inlet (201c-1) and the second water inlet (203b-1).

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