Water sampling device

Abstract

The invention discloses a water sample collection device, and relates to the technical field of water sample collection, the water sample collection device comprises a supporting mechanism, the supporting mechanism comprises a telescopic rod, a support and a rotating shaft, the extension end of the telescopic rod is connected with the support, and the rotating shaft is arranged on the support; the container mechanism is used for temporarily storing the collected water sample, the container mechanism is connected with the rotating shaft, and the container mechanism is connected to the bracket through the rotating shaft; the cover sealing mechanism is used for sealing the container mechanism, and the cover sealing mechanism is arranged on the container mechanism; and the connecting mechanism is connected with a winding mechanism, the connecting mechanism is used for connecting the winding mechanism and the cover sealing mechanism, and the connecting mechanism is arranged at the end, close to the telescopic rod, of the cover sealing mechanism. The opening can be opened and closed after the sampling container reaches the designated position, electronic equipment is not needed, water sample collection work is facilitated, the rotating state of the sampling container can be adjusted according to requirements, and various water sample collection requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of water sample collection, in particular to a water sample collection device. Background Art

[0002] Water quality monitoring is a vital environmental protection work. Its core lies in the comprehensive analysis and acquisition of the physical properties (such as temperature, color, turbidity), chemical characteristics (such as pH, dissolved oxygen content, heavy metal and organic pollutant concentrations) and biological characteristics (such as microbial community structure, plankton species and quantity) of water bodies through carefully planned sampling of water bodies and then using a series of precise and diverse monitoring methods. This process is not limited to directly measuring water quality indicators, but also goes deep into multiple dimensions such as monitoring potential pollutants, assessing the health of ecosystems, and tracking the sources of water pollution, thus providing us with valuable information about the comprehensive health of water bodies and their long-term impact on the environment.

[0003] Water quality monitoring projects are extensive and in-depth, covering multiple levels from basic water quality parameters to complex ecosystem assessments, aiming to comprehensively and multi-levelly assess the quality level of water bodies, ecological health status, and potential impacts on the natural environment and human society. These projects not only provide a scientific basis for water resources management, but also serve as an important reference for the formulation and implementation of environmental protection policies.

[0004] In the existing water quality monitoring technology system, water sampling, as the starting point of the entire monitoring process, faces many challenges in terms of efficiency and flexibility. Traditional sampling methods often rely on complex electronic devices to control the opening and closing of the sampling container, which not only increases the complexity of the operation, but also limits the flexibility of the sampling location and environment. More importantly, these devices often lack the ability to adjust the rotation state of the sampling container according to actual needs, making it difficult to adapt to the diverse water sampling needs in actual operations. In view of the above limitations, we proposed an innovative water sampling device to address the deficiencies in the existing technology. Summary of the invention

[0005] The purpose of the present invention is to provide a water sample collection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A water sample collection device, comprising:

[0008] A supporting mechanism, the supporting mechanism comprising a telescopic rod, a bracket and a rotating shaft, the extending end of the telescopic rod is connected to the bracket, and the bracket is provided with a rotating shaft;

[0009] A container mechanism, the container mechanism is used to temporarily store the collected water sample, the container mechanism is connected to the rotating shaft, and the container mechanism is connected to the bracket through the rotating shaft;

[0010] A capping mechanism, the capping mechanism is used to cap the container mechanism, and the capping mechanism is arranged on the container mechanism;

[0011] A connecting mechanism, wherein the connecting mechanism is connected to a reeling mechanism, the connecting structure is used to connect the reeling mechanism and the capping mechanism, and the connecting mechanism is arranged on one end of the capping mechanism close to the telescopic rod;

[0012] The reeling mechanism is used to move the connecting mechanism;

[0013] A limiting mechanism, the limiting mechanism is used to limit the container mechanism from rotating through the rotating shaft, and the limiting mechanism is arranged on one end of the capping mechanism close to the rotating shaft;

[0014] The reset mechanism is used to move the capping mechanism to cap the container mechanism, and the reset mechanism is arranged on a side of the capping mechanism away from the connecting mechanism.

[0015] Furthermore, the container mechanism comprises a sampling container connected to a rotating shaft, a cover is fixedly provided on the top of the sampling container, and an opening for water inlet and outlet is provided on a side of the cover away from the telescopic rod.

[0016] Furthermore, the covering mechanism includes a cover plate arranged on the lid, a slide groove 1 is symmetrically provided on the cover plate, a fixed column is slidably provided in the slide groove 1, the fixed column is used to support the lateral movement of the cover plate, a limit bar is provided on the fixed column for limiting the separation of the fixed column and the slide groove 1, and a screw is threadedly connected to the limit bar for fixing the limit bar to the top of the fixed column.

[0017] Furthermore, the limiting mechanism includes a screw threadedly connected to the side of the cover plate close to the rotating shaft, and the end of the screw away from the cover plate is fixedly connected to a sliding rod, and the free end of the sliding rod slides in the second slide groove to limit the rotation of the sampling container through the rotating shaft.

[0018] Furthermore, the reset mechanism comprises a pillar arranged on the cover plate, the pillar is connected with an elastic band used for pulling the cover plate to cover the opening, and the free end of the elastic band is fixed on the limiting column.

[0019] Furthermore, the connection mechanism comprises a hook provided on one end of the cover plate close to the telescopic rod, a hanging ring is movably hooked on the hook, and the hanging ring is connected to a pull rope.

[0020] Furthermore, the winding mechanism includes a handle provided on one end of the telescopic rod away from the bracket, a pull rope moves in the handle, one end of the pull rope moves through the bracket, the telescopic rod, the handle, the guide wheel and the through hole and is connected to the winding wheel.

[0021] Furthermore, the sampling container is rotatably connected to a rotating shaft, the opening size is smaller than the cover size, a rubber ring is provided at the opening, the cover has a semi-runway-shaped structure, the slide groove one is a through groove, the length of the slide groove one is greater than the lateral length of the opening, the bottom of the fixing column is fixed on the cover, the height of the fixing column is greater than or equal to the height of the cover, and the screw-in end threadedly penetrates the limiting strip and is threadedly connected to the fixing column.

[0022] Furthermore, the second slide groove is opened on the inner wall of the bracket, the length of the second slide groove is greater than that of the first slide groove, the second slide groove is a T-shaped slide groove, and a through hole for taking out the slide rod is opened on the bracket at the horizontal and vertical intersection of the second slide groove, the length of the vertical part of the second slide groove is greater than twice the diameter of the slide rod, the minimum length of the elastic band is less than or equal to the minimum distance between the pillar and the limit column, and the limit column is arranged on the cover.

[0023] Furthermore, the hook is a self-locking hook, the length of the pull rope is greater than the sum of the maximum length of the telescopic rod and the length of the handle, a cavity is provided inside the handle, a guide wheel for steering the pull rope is provided in the handle cavity, the handle cavity is connected to the telescopic rod cavity, a through hole is provided on the top of the handle for the pull rope to pass through, and the winding wheel is arranged on the handle.

[0024] Compared with the prior art, the present invention has significant technical advantages in the field of water sample collection, which are specifically reflected in the following aspects:

[0025] 1. Innovative operating mechanism and improved convenience

[0026] Traditional water sampling technology often requires complex equipment or relies on electronic devices for remote control, which not only increases the complexity of the operation, but may also affect the sampling efficiency due to equipment failure. The present invention cleverly designs a purely mechanically operated water sampling system. The user only needs to hold the handle, release the pull rope by simply turning the reel, then extend the telescopic rod to the maximum length, and turn the reel again to straighten the pull rope, and then the sampling container can be accurately moved to the designated water body location. This process does not require any electronic equipment to assist, which greatly simplifies the operation process and improves the convenience and reliability of the operation;

[0027] What is more worth mentioning is that when the sampling container reaches the predetermined position, by continuing to reel in the drawstring, a series of precise mechanical linkage reactions can be triggered: the drawstring pulls the hanging ring and the hook, which in turn drives the cover to slide on the slide, causing the pillar to move and stretch the elastic band. As the cover moves, it gradually separates from the opening of the sampling container, and the opening is opened, allowing water to flow freely into the sampling container. After the sampling is completed, the reel brake is closed, the elastic band quickly returns to its original state, pulling the pillar and the cover to reset, re-covering and blocking the opening, effectively preventing further inflow of water, thereby ensuring the accuracy and integrity of water sample collection. This innovative design not only realizes the automatic opening and closing of the opening, but also avoids the risk of failure caused by electronic equipment, making water sample collection more efficient and stable.

[0028] 2. Flexible sampling container adjustment mechanism

[0029] In the actual water sample collection process, it is often necessary to adjust the posture or angle of the sampling container according to different water environments and sampling requirements. Traditional methods are often difficult to achieve this requirement due to the limitations of the equipment structure. The present invention, through clever design, gives the sampling container unprecedented flexibility;

[0030] When the cover moves to open the opening, the screw will move with it, and through cooperation with the slide bar, the slide bar moves horizontally in the second slide slot. The special design of the second slide slot effectively limits the vertical movement of the slide bar, and at the same time, the screw also plays a role in limiting the vertical movement of the cover. This design not only ensures the stability of the cover during the opening and closing process, but also further limits the rotation of the sampling container through the shaft through a series of connection relationships (such as the cover, fixed column, limit strip and screw), ensuring stability during the sampling process;

[0031] However, when the rotation state of the sampling container needs to be adjusted, the present invention also provides a convenient operation scheme. The user only needs to simply turn the screw to separate it from the cover plate, and then tilt the cover plate so that the cover plate and the bracket are not on the same horizontal plane, and then easily pull the slide rod to take it out. If it is inconvenient to tilt the cover plate or the bracket, the user can also slide the slide rod in the second slide groove to the horizontal and vertical intersection, and then move the slide rod vertically or longitudinally to separate it from the bracket, thereby allowing the sampling container to rotate freely through the rotating shaft. This design not only improves the flexibility of the sampling container, but also meets the needs of a variety of complex water sample collection scenarios, demonstrating the significant progress of the present invention in technological innovation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the capping mechanism in the present invention;

[0034] Figure 3 It is a structural schematic diagram of the limiting mechanism in the present invention;

[0035] Figure 4 It is a structural schematic diagram of the winding mechanism in the present invention;

[0036] Figure 5 It is a structural schematic diagram of the connecting mechanism in the present invention;

[0037] Figure 6 It is a structural schematic diagram of the reset mechanism in the present invention;

[0038] Figure 7 It is a structural schematic diagram of the container mechanism in the present invention.

[0039] In the figure: 1, telescopic rod; 2, bracket; 3, rotating shaft; 4, container mechanism; 5, capping mechanism; 6, connecting mechanism; 7, winding mechanism; 8, limiting mechanism; 9, resetting mechanism;

[0040] 41. sampling container; 42. cover; 43. opening;

[0041] 51. Cover plate; 52. Slide slot 1; 53. Fixing column; 54. Limiting strip; 55. Screw;

[0042] 61. Hook; 62. Hanging ring; 63. Drawstring;

[0043] 71. handle; 72. guide wheel; 73. through hole; 74. reel;

[0044] 81. screw rod; 82. slide rod; 83. slide slot 2;

[0045] 91. Pillar; 92. Elastic band; 93. Limiting column. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-7 The present invention provides a technical solution: a water sample collection device, comprising:

[0048] The supporting mechanism comprises a telescopic rod 1, a bracket 2 and a rotating shaft 3. The extending end of the telescopic rod 1 is connected to the bracket 2, and the bracket 2 is provided with the rotating shaft 3;

[0049] The container mechanism 4 is used for temporarily storing the collected water samples. The container mechanism 4 is connected to the rotating shaft 3. The container mechanism 4 is connected to the bracket 2 through the rotating shaft 3. The container mechanism 4 includes a sampling container 41 connected to the rotating shaft 3. A cover 42 is fixedly provided on the top of the sampling container 41. An opening 43 for water inlet and outlet is provided on the side of the cover 42 away from the telescopic rod 1. The sampling container 41 is rotatably connected to the rotating shaft 3. The opening 43 is smaller than the cover plate 51. A rubber ring is provided at the opening 43.

[0050] The telescopic rod 1 is held by hand, and the sampling container 41 is moved to the sampling area through the bracket 2 and the rotating shaft 3. The water enters the sampling container 41 through the opening 43 to complete the water sample collection.

[0051] The capping mechanism 5 is used for capping the container mechanism 4. The capping mechanism 5 is arranged on the container mechanism 4. The capping mechanism 5 includes a cover plate 51 arranged on the lid 42. The cover plate 51 is symmetrically provided with a slide groove 52. A fixing column 53 is slidably provided in the slide groove 52. The fixing column 53 is used to support the lateral movement of the cover plate 51. A limiting strip 54 for limiting the separation of the fixing column 53 from the slide groove 52 is provided on the fixing column 53. The limiting strip 54 is threadedly connected with a screw 55 for fixing the limiting strip 54 to the top of the fixing column 53. The cover plate 51 has a semi-runway-shaped structure. The slide groove 52 is a through groove. The length of the slide groove 52 is greater than the lateral length of the opening 43. The bottom of the fixing column 53 is fixed on the lid 42. The height of the fixing column 53 is greater than or equal to the height of the cover plate 51. The screw 55 is screwed into the end and the thread penetrates the limiting strip 54 and is threadedly connected to the fixing column 53.

[0052] A connecting mechanism 6, the connecting mechanism 6 is connected to a winding mechanism 7, the connecting structure 6 is used to connect the winding mechanism 7 and the capping mechanism 5, the connecting mechanism 6 is arranged on one end of the capping mechanism 5 close to the telescopic rod 1, the connecting mechanism 6 includes a hook 61 arranged on one end of the cover plate 51 close to the telescopic rod 1, a hanging ring 62 is movably hooked on the hook 61, the hanging ring 62 is connected to a pull rope 63, the hook 61 is a self-locking hook, and the length of the pull rope 63 is greater than the sum of the maximum length of the telescopic rod 1 and the length of the handle 71;

[0053] The winding mechanism 7 is used to move the connecting mechanism 6. The winding mechanism 7 includes a handle 71 provided on the end of the telescopic rod 1 away from the bracket 2. A pull rope 63 moves in the handle 71. One end of the pull rope 63 moves through the bracket 2, the telescopic rod 1, the handle 71, the guide wheel 72 and the through hole 73 and is connected to the winding wheel 74. A cavity is provided inside the handle 71. The guide wheel 72 is provided in the cavity of the handle 71. One end of the pull rope 63 moves upward after being guided by the guide wheel 72, passes through the through hole 73 and is fixed to the connecting mechanism 6. Connected to the reel 74, the cavity of the handle 71 is connected to the cavity of the telescopic rod 1, one end of the pull rope 63 moves through the bracket 2, the telescopic rod 1 and the handle 71, the pull rope 63 passes through the bracket 2 and is connected to the cover plate 51 at the same level, so that the pull rope 63 can pull the cover plate 51 through the hanging ring 62 and the hook 61, and the top of the handle 71 is provided with a through hole 73 for the pull rope 63 to pass through, and the reel 74 is arranged on the handle 71, and the reel 74 has a crank and an adjustable brake function;

[0054] The reset mechanism 9 is used to move the capping mechanism 5 to cap the container mechanism 4. The reset mechanism 9 is arranged on the side of the capping mechanism 5 away from the connecting mechanism 6. The reset mechanism 9 is provided with two groups symmetrically distributed on the capping mechanism 5. The reset mechanism 9 includes a pillar 91 arranged on the cover plate 51. The pillar 91 is connected with an elastic band 92 used for pulling the cover plate 51 to cover the opening 43. The free end of the elastic band 92 is fixed on the limiting column 93. The minimum length of the elastic band 92 is less than or equal to the minimum distance between the pillar 91 and the limiting column 93. That is to say, the elastic band 92 is in a straightened state when connecting the pillar 91 and the limiting column 93. The limiting column 93 is arranged on the lid 42;

[0055] Hold the handle 71, turn the reel 74 to release the drawstring 63, and then extend the telescopic rod 1. After the telescopic rod 1 reaches the maximum length, turn the reel 74 to reel in the drawstring 63, so that the drawstring 63 is in a straight state, and then move the handle 71 and the telescopic rod 1 to make the sampling container 41 contact the water body. When the sampling container 41 reaches the specified position, continue to reel in the drawstring 63, the drawstring 63 pulls the hanging ring 62 and the hook 61, and pulls the cover plate 51 to slide at the fixed column 53 through the slide groove 52. The cover plate 51 moves to make the pillar 91 move with it, and the pillar 91 moves to stretch the elastic band 92, and at the same time, the cover plate 51 moves to make the pillar 91 move with it. The plate 51 moves and separates from the opening 43, and the opening 43 is in an open state. The brake of the reel 74 is turned on, and water enters the sampling container 41 through the opening 43. The brake of the reel 74 is turned off, and the elastic band 92 returns to its original state, pulling the support 91 back to its original position. The cover plate 51 moves with the support 91, and the cover plate 51 moves to cover the opening 43, thereby blocking the opening 43 and restricting water from entering the sampling container 41. At this time, the water collection work is completed, so that the opening 43 can be opened and closed after the sampling container 41 reaches the specified position, and there is no need to use electronic equipment, which facilitates water sample collection.

[0056] The limiting mechanism 8 is used to limit the rotation of the container mechanism 4 through the rotating shaft 3. The limiting mechanism 8 is arranged on the end of the sealing mechanism 5 close to the rotating shaft 3. The limiting mechanism 8 includes a screw 81 threadedly connected to the side of the cover plate 51 close to the rotating shaft 3. The end of the screw 81 away from the cover plate 51 is fixedly connected with a slide rod 82. The free end of the slide rod 82 slides in the second slide groove 83 to limit the rotation of the sampling container 41 through the rotating shaft 3. The second slide groove 82 is opened on the inner wall of the bracket 2. The length of the second slide groove 83 is greater than the first slide groove 52. The second slide groove 83 is a T-shaped slide groove. A through hole for taking out the slide rod 82 is longitudinally opened on the bracket 2 at the horizontal and vertical intersection of the second slide groove 83. The length of the vertical part of the second slide groove 83 is greater than twice the diameter of the slide rod 82.

[0057] The cover plate 51 moves to open the opening 43, and the screw rod 81 moves with the cover plate 51. The screw rod 81 causes the slide bar 82 to move with it. The slide bar 82 moves horizontally at the second slide groove 83. The second slide groove 83 limits the vertical movement of the slide bar 82. The vertical movement of the cover plate 51 is limited by the screw rod 81. From the connection relationship between the cover plate 51, the fixing column 53, the limit bar 54 and the screw 55, it can be seen that the cover plate 51 is restricted from moving vertically, which limits the rotation of the sampling container 41 through the rotating shaft 3. When the sampling container 41 needs to rotate through the rotating shaft 3, the screw rod 81 is rotated to separate the screw rod 81 from the cover plate 51, and then the cover plate 51 is tilted. When the cover 51 and the bracket 2 are not on the same horizontal plane, the slide bar 82 can be pulled out by pulling it toward the inside of the bracket 2. When it is inconvenient to tilt the cover 51 or the bracket 2, the movable slide bar 82 can slide in the second slide groove 83. When it slides to the horizontal and vertical intersection of the second slide groove 83, the slide bar 82 can be moved upward or downward to separate from the bracket 2 by sliding in the vertical part of the second slide groove 83, or the slide bar 82 can be moved longitudinally. The slide bar 82 is separated from the bracket 2 through the through hole of the bracket 2, and the sampling container 41 can be rotated by the rotating shaft 3, so that the rotation state of the sampling container 41 can be adjusted according to needs to meet various water sample collection needs.

[0058] Working principle of the present invention:

[0059] When using the present invention to collect water samples, the operator first firmly holds the handle 71, which is the control center of the entire device. Then, the sampling depth is adjusted as needed by smoothly extending the telescopic rod 1. In this process, one end of the pull rope 63 passes through the carefully designed bracket 2, the inside of the telescopic rod 1, and the guide channel inside the handle 71 as the telescopic rod 1 extends, then bypasses the guide wheel 72, and finally passes through the through hole 73. This series of actions effectively pulls the winding wheel 74 to rotate, thereby releasing the pull rope 63. When the telescopic rod 1 is extended to the preset maximum length, it indicates that the preliminary setting of the sampling depth is completed. At this time, the operator will appropriately turn the winding wheel 74 to further tighten the pull rope 63 to ensure that the pull rope 63 is in a taut state, and then turn on the brake device of the winding wheel 74 to fix the position of the pull rope 63 to prepare for the next sampling step.

[0060] Next, the operator moves the handle 71 to drive the entire device (including the telescopic rod 1) slowly and steadily close to the target water body. When the sampling container 41 gradually approaches and finally touches the water body, the operator needs to close the brake of the reel 74 again and continue to slightly reel in the drawstring 63. This action pulls the hanging ring 62 and the hook 61 through the drawstring 63, and then pulls the cover plate 51 to slide smoothly along the slide groove 52 on the fixed column 53. The movement of the cover plate 51 not only drives the pillar 91 connected to it to move together, but also stretches the elastic band 92 to prepare for the subsequent opening and closing of the opening 43. As the cover plate 51 continues to move, it gradually separates from the opening 43 on the sampling container 41, so that the opening 43 is fully opened and ready to welcome the inflow of water. At this time, the brake of the reel 74 is turned on again to allow the water flow to freely flow into the sampling container 41 through the opening 43. When the required amount of water sample is collected, the brake of the reel 74 is closed, and the elastic band 92 uses its elastic force to quickly restore its original shape, pulling the support 91 and the cover plate 51 to reset, tightly covering the opening 43, effectively preventing further inflow of external water, indicating a successful water sample collection process.

[0061] In addition, the present invention also cleverly designs a limiting mechanism for the cover plate 51. When the cover plate 51 moves to open the opening 43, the screw 81 also moves accordingly, and drives the slide bar 82 to move horizontally in the second slide groove 83 through a threaded connection. The special design of the second slide groove 83 not only limits the vertical movement of the slide bar 82, but also indirectly limits the vertical movement of the cover plate 51 through the connection between the screw 81 and the cover plate 51, thereby ensuring that the sampling container 41 will not accidentally rotate due to external force when collecting water samples, thereby affecting the collection accuracy.

[0062] If in certain specific cases, the rotation state of the sampling container 41 needs to be adjusted to meet different sampling requirements, the operator only needs to simply rotate the screw 81 to separate it from the cover plate 51, and then tilt the cover plate 51 to an angle that is not in the same horizontal plane as the bracket 2. At this time, if conditions permit, the slide bar 82 can be directly pulled toward the inside of the bracket 2 to achieve quick disassembly; if space is limited and it is inconvenient to directly tilt the cover plate 51 or the bracket 2, the operator can also flexibly move the slide bar 82, slide it in the slide groove 83 to the horizontal and vertical intersection, and then slide the slide bar 82 up or down through the vertical part of the slide groove 83, or move the slide bar 82 longitudinally until it passes through the through hole of the bracket 2 and is completely separated from the bracket 2. At this time, the sampling container 41 can freely rotate around the rotating shaft 3, which provides great flexibility and adaptability for sampling work and meets the diverse water sample collection needs.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water sample collection device, characterized in that: include: A support mechanism, the support mechanism comprising a telescopic rod (1), a bracket (2) and a rotating shaft (3), the extended end of the telescopic rod (1) is connected to the bracket (2), and the bracket (2) is provided with the rotating shaft (3); A container mechanism (4), the container mechanism (4) is used to temporarily store the collected water sample, the container mechanism (4) is connected to the rotating shaft (3), and the container mechanism (4) is connected to the bracket (2) via the rotating shaft (3); A capping mechanism (5), the capping mechanism (5) being used to cap the container mechanism (4), the capping mechanism (5) being arranged on the container mechanism (4); A connecting mechanism (6), wherein the connecting mechanism (6) is connected to a reeling mechanism (7), the connecting structure (6) is used to connect the reeling mechanism (7) and the capping mechanism (5), and the connecting mechanism (6) is arranged on one end of the capping mechanism (5) close to the telescopic rod (1); The winding mechanism (7) is used to move the connecting mechanism (6); a limiting mechanism (8), the limiting mechanism (8) being used to limit the container mechanism (4) from rotating via the rotating shaft (3), the limiting mechanism (8) being arranged on one end of the capping mechanism (5) close to the rotating shaft (3); A reset mechanism (9) is used to move the capping mechanism (5) to cap the container mechanism (4), and the reset mechanism (9) is arranged on a side of the capping mechanism (5) away from the connecting mechanism (6).

2. The water sample collection device according to claim 1, characterized in that: The container mechanism (4) comprises a sampling container (41) connected to the rotating shaft (3), a cover (42) is fixedly provided on the top of the sampling container (41), and an opening (43) for water inlet and outlet is provided on a side of the cover (42) away from the telescopic rod (1).

3. The water sample collection device according to claim 1, characterized in that: The cover mechanism (5) comprises a cover plate (51) arranged on the cover (42), a slide groove (52) being symmetrically arranged on the cover plate (51), a fixing column (53) being slidably arranged in the slide groove (52), the fixing column (53) being used to support the lateral movement of the cover plate (51), a limiting strip (54) being provided on the fixing column (53) for limiting the separation of the fixing column (53) from the slide groove (52), and a screw (55) being threadedly connected on the limiting strip (54) for fixing the limiting strip (54) to the top of the fixing column (53).

4. The water sample collection device according to claim 1, characterized in that: The limiting mechanism (8) comprises a screw rod (81) threadedly connected to a side of the cover plate (51) close to the rotating shaft (3); one end of the screw rod (81) away from the cover plate (51) is fixedly connected to a sliding rod (82); the free end of the sliding rod (82) slides in a second sliding groove (83) to limit the rotation of the sampling container (41) through the rotating shaft (3).

5. The water sample collection device according to claim 1, characterized in that: The reset mechanism (9) comprises a support (91) arranged on the cover plate (51), the support (91) being connected to an elastic band (92) for pulling the cover plate (51) to cover the opening (43), the free end of the elastic band (92) being fixed on a limiting column (93).

6. The water sample collection device according to claim 1, characterized in that: The connecting mechanism (6) comprises a hook (61) arranged on one end of the cover plate (51) close to the telescopic rod (1), a hanging ring (62) is movably hooked on the hook (61), and the hanging ring (62) is connected to a pull rope (63).

7. The water sample collection device according to claim 1, characterized in that: The reeling mechanism (7) comprises a handle (71) arranged on one end of the telescopic rod (1) away from the bracket (2); a pull rope (63) moves inside the handle (71); one end of the pull rope (63) moves through the bracket (2), the telescopic rod (1), the handle (71) and the through hole (73) and is connected to the reeling wheel (74).

8. The water sample collection device according to claim 2 or 3, characterized in that: The sampling container (41) is rotatably connected to the rotating shaft (3); the opening (43) is smaller than the cover (51); a rubber ring is provided at the opening (43); the cover (51) is a semi-track-shaped structure; the slide groove (52) is a through groove; the length of the slide groove (52) is greater than the horizontal length of the opening (43); the bottom of the fixing column (53) is fixed on the cover (42); the height of the fixing column (53) is greater than or equal to the height of the cover (51); the screw (55) is screwed into the end through the thread of the limiting strip (54) and is threadedly connected to the fixing column (53).

9. The water sample collection device according to claim 4 or 5, characterized in that: The second slide groove (82) is provided on the inner wall of the bracket (2); the length of the second slide groove (83) is greater than that of the first slide groove (52); the second slide groove (83) is a T-shaped slide groove; a through hole for taking out the slide rod (82) is provided on the bracket (2) at the intersection of the second slide groove (83) in the horizontal direction and the vertical direction; the length of the vertical part of the second slide groove (83) is greater than twice the diameter of the slide rod (82); the minimum length of the elastic band (92) is less than or equal to the minimum distance between the pillar (91) and the limiting column (93); and the limiting column (93) is provided on the cover (42).

10. The water sample collection device according to claim 6 or 7, characterized in that: The hook (61) is a self-locking hook. The length of the pull rope (63) is greater than the sum of the maximum length of the telescopic rod (1) and the length of the handle (71). A cavity is provided inside the handle (71). A guide wheel (72) for steering the pull rope (63) is provided in the cavity of the handle (71). The cavity of the handle (71) is communicated with the cavity of the telescopic rod (1). A through hole (73) for the pull rope (63) to pass through is provided at the top of the handle (71). The reel (74) is provided on the handle (71).

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