Sampling device in water environment monitoring process

Abstract

This invention relates to the field of environmental monitoring technology, specifically disclosing a sampling device for water environment monitoring, including a handheld rod and a connecting rod. The handheld rod has an internal winding wheel with a traction rope wound on it. A crank is located on one side of the handheld rod, and a locking assembly is located on the other side. An elastic assembly for contracting the connecting rod is located at one end of the handheld rod near the connecting rod; the elastic assembly is fixedly connected to one end of the connecting rod, and a conveying structure for conveying the traction rope is fixedly located at the other end of the connecting rod. A length indicator is located on the traction rope. The movable end of the traction rope passes through the elastic assembly and the handheld rod sequentially and is wound around the conveying structure. A hook is located at the movable end of the traction rope, and a collection mechanism is attached to the hook. A hanging rod for attaching the hook is fixedly located at the bottom of the handheld rod. This invention is characterized by its portability and ability to perform water sampling operations at different depths according to actual water sampling needs.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring technology, and in particular to a sampling device in the process of water environment monitoring. Background Technology

[0002] With the rapid development of my country's economy and the continuous improvement of people's living standards, the discharge of industrial and domestic sewage is also increasing. Water resources are extremely precious, and if water resources are not properly monitored and managed, it will have a great negative impact on the environment and resources.

[0003] Existing sampling equipment for water bodies to be tested has a relatively complex overall structure and is inconvenient to carry. Most existing sampling equipment directly extracts and collects the water body to be tested through a water pump, which is not convenient for sampling water bodies at different depths according to actual sampling needs.

[0004] Patent document CN213091268U discloses a pollutant sampling device for water environment engineering testing, including a fixed frame in the shape of an "L" with a handle fixedly connected to one end. A collection device is fixedly connected to the end of the fixed frame away from the handle, and a traction rope is provided at the end of the collection device. A guide wheel frame is provided at the bend of the fixed frame. The device utilizes the fixed frame to adjust the depth of the collection device; pulling the pull ring moves the traction rope, thus driving the collection device to work and sample water at different depths. It is convenient to use and includes a cleaning device to facilitate the removal of obstacles such as branches and weeds at the sampling site, improving work efficiency and meeting the intended purpose. However, in actual use, this solution is not ideal for sampling different areas of the water body. It is not convenient to limit the lateral and vertical movement of the traction rope during use, making it prone to swaying and detaching from the guide wheel. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems existing in the current water environment sampling process, the present invention provides a sampling device for water environment monitoring, which is easy to carry and can perform water sampling operations at different depths according to actual water sampling needs.

[0006] The technical solution of this invention: a sampling device for water environment monitoring, comprising a handheld rod and a connecting rod disposed at one end of the handheld rod; a winding wheel is disposed inside the handheld rod, and a traction rope is wound on the winding wheel; a crank handle for driving the winding wheel is disposed on one side of the outside of the handheld rod, and a locking component for locking the winding wheel is disposed on the other side of the handheld rod; an elastic component for retracting the connecting rod is disposed at one end of the handheld rod near the connecting rod, the elastic component is fixedly connected to one end of the connecting rod, and a conveying structure for conveying the traction rope is fixedly disposed at the other end of the connecting rod; a length marking component is disposed on the traction rope; the movable end of the traction rope passes through the elastic component and the handheld rod in sequence and is wound around the conveying structure, and a hook is disposed at the movable end of the traction rope, on which a collection mechanism is hung; a hanging rod for hanging the hook is fixedly disposed at the bottom end of the handheld rod. This invention, through the inclusion of a locking component, allows for arbitrary length reeling in and unreeling of the traction rope during cranking. Furthermore, the inclusion of an elastic component allows the connecting rod to be pushed outside the handle when the force applied to it is released, effectively extending the handle's length. When the connecting rod is subjected to inward pressure, the elastic component retracts it into the handle, reducing its footprint and facilitating carrying. The invention also incorporates a conveying structure that limits the position of the traction rope, improving its stability during reeling in and unreeling. Finally, this invention... The invention incorporates a length indicator component, allowing for a direct visual determination of the traction rope's length during water collection based on the number of coating layers on the length coating component. By accurately locating the coating layers, the length of the traction rope can be further precisely determined, leading to a clear indication of the water depth. This facilitates water collection at different depths based on actual needs. Furthermore, the invention features a collection mechanism connected to a connecting rod, allowing for simple and convenient water collection by simply holding the handheld rod. When not in use, the connecting rod can be pushed into the handheld rod, and the hook can be attached to the hanging rod for easy attachment. The overall structure is simple and easy to carry and move.

[0007] Preferably, the locking assembly includes a connecting shaft and a fixing block. The connecting shaft is fixedly mounted at the axis of the winding reel, and both ends of the connecting shaft are rotatably connected to the hand handle. The fixing block is fixedly mounted on the outside of the hand handle, and a movable column is slidably mounted inside the fixing block. One end of the movable column passes through the hand handle and is fitted into a connecting groove on the connecting shaft. The other end of the movable column passes through the fixing block and is fixedly mounted with a pull block. The pull block has anti-slip textures on its outside. The connecting shaft enables the winding reel to be rotatably connected to the hand handle, and one end of the crank handle is fixed to the connecting shaft. Turning the crank handle enables the winding and unwinding of the traction rope. The pull block facilitates the movement of the movable column inward or outward.

[0008] Preferably, a set of fixing rods is equidistantly arranged along the circumference of the inner side of the pull block, outside the movable column. A limit post is fixedly installed at one end of each fixing rod, and the limit post is slidably disposed within a limit groove in the fixing block. A limit block is fixedly installed at the top of the movable column, and the limit block is disposed within a limit groove in the connecting shaft. The engagement of the limit block and the limit groove allows the movable column to be inserted into the connecting groove. The fixing rods and limit posts, in conjunction with each other, lock and limit the rotation of the connecting shaft, preventing the winding wheel from rotating when not feeding or retracting the wire.

[0009] Preferably, the elastic component includes a fixed plate and a movable plate. The movable plate is fixedly mounted on one end of the connecting rod, and the fixed plate is located on one side of the movable plate and fixedly connected to the inner wall of the handheld handle. A compression spring is fixedly mounted on one side of the fixed plate, and one end of the compression spring is fixedly connected to the movable plate. A limiting slide rod is slidably mounted inside the compression spring, with one end fixedly connected to the fixed plate and the other end slidably mounted inside the connecting rod. Both the fixed plate and the movable plate have through holes for the traction rope to pass through. Through the elastic action of the compression spring, when the force applied to the connecting rod is released, the connecting rod can be pushed to the outside of the handheld handle, thus extending the length of the handheld handle. When the connecting rod is subjected to inward pressure, the compression spring contracts, retracting the connecting rod into the handheld handle, reducing its space occupation and facilitating carrying. The limiting slide rod also improves the stability of the connecting rod.

[0010] Preferably, the conveying structure includes a wire feeding wheel, which is fixedly mounted on one end of a connecting rod. A U-shaped connecting block is located on the top of the wire feeding wheel. A limiting wheel, which limits the movement of the traction rope, is located inside the connecting block. An adjusting screw is rotatably mounted at the center of the top of the limiting wheel, with its tip passing through the connecting block and resting on top of it. Limiting springs are fixedly mounted on both sides of the top of the limiting wheel, with their tips fixedly connected to the connecting block. The movable end of the traction rope is wound around the outside of the wire feeding wheel. Turning the adjusting screw pushes the limiting wheel downwards. The interaction between the limiting wheel and the wire feeding wheel limits the position of the traction rope, improving its stability during winding and unwinding. The limiting springs further limit the movement of the limiting wheel, enhancing its stability during movement.

[0011] Preferably, the length marking component includes alternating red and white length coatings, the number of which corresponds to the length of the traction rope. A waterproof membrane is provided on the outside of each length coating, and the interval between two adjacent length coatings is one meter. A black alignment coating is placed on the traction rope between two adjacent length coatings, and this alignment coating is also covered by a waterproof membrane. With these length coatings, water collectors can determine the length of the traction rope based on the number of coatings on each length coating, and thus allow for precise rope deployment based on the actual water depth. The alignment coating further refines the rope length and improves the accuracy of the water depth assessment. The waterproof membrane protects both the length coatings and the alignment coating.

[0012] Preferably, the collection mechanism includes an outer cylinder and an inner cylinder. A hanging ring is fixedly installed at the top of the outer cylinder to cooperate with a hook. An inlet is formed through the top of the outer cylinder, inside the hanging ring. The inner cylinder is slidably disposed inside the outer cylinder. Support springs are fixedly installed on both sides of the bottom of the inner cylinder. The top of the inner cylinder is sealed against the inlet by the elasticity of the support springs. An annular groove is formed on the outer side of the inlet at the top of the inner cylinder. The elasticity of the support springs pushes the inner cylinder against the outer cylinder, thus sealing the inlet. The hanging ring allows the outer cylinder to be connected to a traction rope. When the inlet is opened, water flows into the inner cylinder along the annular groove.

[0013] Preferably, counterweights are provided on both sides of the outer cylinder, and sliders are fixedly installed on the inner side of the counterweights. The sliders are slidably installed in the grooves opened on the outer cylinder, and one end of the slider is fixedly connected to the inner cylinder. A connecting seat is fixedly installed at the bottom of the inner cylinder, and a storage structure is provided inside the connecting seat. Limiting structures for limiting the storage structure are respectively provided on both sides of the storage structure in the connecting seat. The weight of the two counterweights is greater than the buoyancy of the entire collection mechanism. When the outer cylinder is placed in water, it can sink under the action of the weight of the counterweights. After the traction rope is released to a suitable position, the crank can be turned to perform the line reeling operation. At this time, under the combined downward force of the water resistance and the weight of the counterweights, the inner cylinder can be separated from the outer cylinder, opening the water inlet. Water within the required water intake depth will then enter the collection tank along the annular groove for collection.

[0014] Preferably, the storage structure includes a storage tank, with a connecting sleeve threaded to the top of the storage tank. A filter screen is installed at the top of the connecting sleeve, and the top of the filter screen communicates with the inner cylinder. Limiting holes are provided on the top of both sides of the connecting sleeve. The storage tank allows for the collection of water from the water body, and the filter screen filters out impurities in the water, preventing impurities from directly entering the storage tank.

[0015] Preferably, the limiting structure includes a limiting rod, one end of which is inserted into a limiting hole, and the other end of which passes through a slot in the outer cylinder and is fixedly fitted with a handle. A retaining spring is fitted around the outside of the limiting rod, and the retaining spring is fitted into a limiting circular groove in the connecting seat. The two ends of the retaining spring are fixedly connected to the inner wall of the limiting circular groove and a pad on the outside of the retaining spring, respectively. Pulling the handle moves the limiting rod, separating it from the limiting hole, thus separating the connecting sleeve from the connecting seat, and then separating the connecting sleeve from the storage tank, allowing the sampled water to be removed.

[0016] The present invention has the following beneficial effects:

[0017] (1) By setting a locking component, the traction rope can be wound up and unwound to any length during the turning of the crank handle;

[0018] (2) By setting up an elastic component, when the force applied to the connecting rod is released, the connecting rod can be pushed to the outside of the handheld rod, which can extend the length of the handheld rod. When the connecting rod is subjected to inward pressure, the elastic component can retract the connecting rod into the handheld rod, which can reduce the space occupied and make it easier to carry.

[0019] (3) By setting up a conveying structure, the position of the traction rope can be limited, which can improve the stability of the position of the traction rope when it is being wound up and unwound.

[0020] (4) By setting up a length indicator component, when taking water, the length of the traction rope can be intuitively determined by the number of coating layers on the length coating component. By finding the coating, the length of the traction rope can be further accurately determined, and the water depth can be intuitively determined, which makes it convenient to take water from different depths according to the actual water taking needs.

[0021] (5) By setting up a collection mechanism, the collection mechanism is connected to the connecting rod. Water can be taken by taking the hand stick. The operation is relatively simple and convenient. When not in use, the connecting rod can be pushed into the hand stick and the hook can be attached to the hanging rod. The overall structure is relatively simple and convenient to carry and move. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure between the collection mechanism and the traction rope in this invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the handheld lever in this invention;

[0024] Figure 3 This is a schematic diagram showing the position and structure of the locking assembly and the winding wheel in this invention;

[0025] Figure 4 This is a schematic diagram of the locking assembly structure in this invention;

[0026] Figure 5 This is a schematic diagram of the elastic component structure in this invention;

[0027] Figure 6 This is a schematic diagram of the conveying structure in this invention;

[0028] Figure 7 This is a schematic diagram of the length marking component structure in this invention;

[0029] Figure 8 This is a schematic diagram of the collecting mechanism structure in this invention;

[0030] Figure 9 This is a schematic diagram of the internal structure of the outer cylinder in this invention;

[0031] Figure 10 This is a schematic diagram of the connection structure between the storage structure and the limiting structure in this invention;

[0032] Figure 11 This is a schematic diagram of the storage structure in this invention;

[0033] Figure 12 This is a schematic diagram of the limiting structure in this invention;

[0034] Figure 13 This is a schematic diagram of the structure when the connecting rod retracts in this invention.

[0035] The markings in the attached diagram are as follows: 1-Handheld lever; 2-Connecting rod; 3-Locking assembly; 301-Connecting shaft; 302-Fixing block; 303-Moving column; 304-Connecting groove; 305-Pull block; 306-Fixing rod; 307-Limiting column; 308-Limiting circular groove one; 309-Limiting block; 3010-Limiting groove; 4-Elastic assembly; 401-Fixing piece; 402-Moving piece; 403-Compression spring; 404-Limiting slide rod; 405-Perforation; 5-Conveying structure; 501-Wire feed wheel; 502-Connecting block; 503-Limiting wheel; 504-Adjusting screw; 505-Limiting spring; 6-Hook; 7-Length marking assembly; 701-Length coating ; 702 - Coating alignment; 8 - Hanging rod; 9 - Collection mechanism; 901 - Outer cylinder; 902 - Inner cylinder; 903 - Hanging ring; 904 - Water inlet; 905 - Support spring; 906 - Annular groove; 907 - Counterweight; 908 - Storage structure; 9081 - Storage tank; 9082 - Connecting sleeve; 9083 - Filter screen; 9084 - Limiting insertion hole; 909 - Limiting structure; 9091 - Limiting insertion rod; 9092 - Groove; 9093 - Handle; 9094 - Pressing spring; 9095 - Limiting circular groove II; 9096 - Pad; 9010 - Connecting seat; 9011 - Slider; 9012 - Slide groove; 10 - Winding wheel; 11 - Traction rope; 12 - Crank handle. Detailed Implementation

[0036] The present invention will be further described below with reference to the embodiments and accompanying drawings, but this should not be construed as limiting the present invention.

[0037] like Figure 1 and Figure 2 The sampling device shown in the water environment monitoring process includes a handheld rod 1 and a connecting rod 2 at one end of the handheld rod 1. A winding wheel 10 is installed inside the handheld rod 1, and a traction rope 11 is wound around the winding wheel 10. A crank 12 for driving the winding wheel 10 is installed on one side of the handheld rod 1, and a locking assembly 3 for locking the winding wheel 10 is installed on the other side of the handheld rod 1. An elastic assembly 4 for retracting the connecting rod 2 is installed inside the handheld rod 1 near the connecting rod 2. The elastic assembly 4 is fixedly connected to one end of the connecting rod 2. A conveying structure 5 for conveying the traction rope 11 is fixedly installed at the other end of the connecting rod 2. A length marking assembly 7 is installed on the traction rope 11, and the movable end of the traction rope 11 passes through the elastic assembly 4 and the handheld rod 1, is wound around the conveying structure 5, and is equipped with a hook 6. A collection mechanism 9 is hung on the hook 6, and an inverted L-shaped hook is fixedly installed at the bottom end of the handheld rod 1 for hanging the hook 6. Figure 13 The hanging rod 8 is shown.

[0038] like Figure 3The locking assembly 3 shown includes a connecting shaft 301 and a fixing block 302. The connecting shaft 301 is fixedly mounted at the axis of the winding wheel 10, and both ends of the connecting shaft 301 are rotatably connected to the hand handle 1. The fixing block 302 is fixedly mounted on the outside of the hand handle 1, and a sliding arrangement such as... is provided inside the fixing block 302. Figure 4 The movable column 303 shown has one end passing through the hand handle 1 and fitting into the connecting groove 304 on the connecting shaft 301. The other end of the movable column 303 passes through the fixing block 302 and is fixedly mounted with a pull block 305. The pull block 305 has anti-slip texture on its exterior. The connecting shaft 301 enables the winding wheel 10 to be rotatably connected to the hand handle 1. One end of the crank handle 12 is fixed to the connecting shaft 301. By turning the crank handle 12, the traction rope 11 can be wound and unwound. The pull block 305 facilitates the movement of the movable column 303 inward or outward. A set of fixing rods 3 are equidistantly arranged along the circumferential direction on the inner side of the pull block 305, outside the movable column 303. 06. A limiting post 307 is fixedly provided at one end of the fixed rod 306. The limiting post 307 is slidably disposed in the limiting circular groove 308 opened in the fixed block 302. A limiting block 309 is fixedly provided at the top end of the movable post 303. The limiting block 309 is disposed in the limiting groove 3010 opened on the connecting shaft 301. By cooperating with the limiting block 309 and the limiting groove 3010, the movable post 303 can be inserted into the connecting groove 304. By cooperating with the fixed rod 306 and the limiting post 307, the rotation of the connecting shaft 301 can be locked and limited. When it is not necessary to unwind or rewind the wire, the winding wheel 10 can be prevented from rotating. The elastic component 4 includes, for example, Figure 5The fixed plate 401 and movable plate 402 are shown. The movable plate 402 is fixedly mounted on one end of the connecting rod 2. The fixed plate 401 is located on one side of the movable plate 402 and is fixedly connected to the inner wall of the hand handle 1. A compression spring 403 is fixedly mounted on one side of the fixed plate 401. One end of the compression spring 403 is fixedly connected to the movable plate 402, and a limit slide rod 404 is slidably mounted inside the compression spring 403. One end of the limit slide rod 404 is fixedly connected to the fixed plate 401, and the other end of the limit slide rod 404 is slidably mounted inside the connecting rod 2. Both the fixed plate 401 and the movable plate 402 have through holes 405 for the traction rope 11 to pass through. Through the elastic action of the compression spring 403, when the connecting rod is released... When force 2 is applied, the connecting rod 2 can be pushed to the outside of the handheld rod 1, which can extend the length of the handheld rod 1. When the connecting rod 2 is subjected to inward pressure, the compression spring 403 contracts, which can retract the connecting rod 2 into the handheld rod 1, reducing the space occupied and making it easier to carry. The limiting slide bar 404 can improve the stability of the connecting rod 2 at a certain time. The conveying structure 5 includes a wire feeding wheel 501, which is fixedly installed at one end of the connecting rod 2. The top of the wire feeding wheel 501 is provided with an inverted U-shaped connecting block 502. The inner side of the connecting block 502 is provided with a limiting wheel 503 to limit the traction rope 11. The middle of the top of the limiting wheel 503 is rotatably provided with a... Figure 6 The adjusting screw 504 shown has its top end passing through the connecting block 502 and positioned on top of the connecting block 502. Limiting springs 505 are fixedly installed on both sides of the top end of the limiting wheel 503. The top ends of the limiting springs 505 are fixedly connected to the connecting block 502. The movable end of the traction rope 11 is wound around the outside of the feed wheel 501. Then, turning the adjusting screw 504 pushes the limiting wheel 503 downwards. Through the cooperation of the limiting wheel 503 and the feed wheel 501, the position of the traction rope 11 is limited, which can improve the position of the traction rope 11. The stability of the position during line reeling and unloading is ensured by a limiting spring 505, which limits the movement of the limiting wheel 503, thus improving the stability of the position during the movement of the limiting wheel 503. The length marking component 7 includes alternating red and white length coatings 701, the number of layers of which corresponds to the length of the traction rope 11. A waterproof membrane is provided on the outside of each length coating 701, and the interval between two adjacent length coatings 701 is one meter. A black coating is provided on the traction rope 11 between two adjacent length coatings 701. Figure 7The positioning coating 702 shown is also covered with a waterproof membrane. Using the length coating 701, water-fetching personnel can determine the length of the traction rope 11 based on the number of layers on the length coating 701. This allows them to lay the traction rope 11 according to the actual water depth. The positioning coating 702 further refines the length of the traction rope 11, improving the accuracy of the water depth. The waterproof membrane protects both the length coating 701 and the positioning coating 702.

[0039] Collection agencies 9 include, for example Figure 8 The outer cylinder 901 and inner cylinder 902 shown are provided with a hook 6 fixedly installed at the top of the outer cylinder 901. Figure 10 The hanging ring 903 shown has an inlet 904 extending through the top of the outer cylinder 901 inside the hanging ring 903. The inner cylinder 902 is slidably disposed inside the outer cylinder 901, and support springs 905 are fixedly installed on both sides of the bottom end of the inner cylinder 902. The top of the inner cylinder 902 is sealed against the inlet 904 by the elasticity of the support springs 905. An annular groove 906 is provided on the outer side of the inlet 904 at the top of the inner cylinder 902. Through the elasticity of the support springs 905, the inner cylinder 902 can be pushed against the outer cylinder 901, thereby sealing the inlet 904. The hanging ring 903 connects the outer cylinder 901 to the traction rope 11. When the inlet 904 is opened, water can enter the inner cylinder 902 along the annular groove 906. The outer cylinder 901 has support springs 905 on both sides. Figure 9 The counterweight 907 shown has a slider 9011 fixedly installed on its inner side. The slider 9011 is slidably installed in a groove 9012 opened on the outer cylinder 901, and one end of the slider 9011 is fixedly connected to the inner cylinder 902. A connecting seat 9010 is fixedly installed at the bottom of the inner cylinder 902. A storage structure 908 is installed inside the connecting seat 9010. Limiting structures 909 are respectively arranged on both sides of the storage structure 908 inside the connecting seat 9010 to limit the storage structure 908. The weight of the two counterweights 907 is greater than the buoyancy of the entire collecting mechanism 9. When the outer cylinder is... When cylinder 901 is placed in water, the weight of counterweight 907 causes the outer cylinder 901 to sink. Once the traction rope 11 has been lowered to a suitable position, the crank handle 12 can be turned to reel in the line. At this point, the combined downward force of water resistance and the weight of counterweight 907 causes the inner cylinder 902 to separate from the outer cylinder 901, opening the inlet 904. Water at the desired depth then flows along the annular groove 906 into the collection tank 9081 for collection. The collection structure 908 includes the collection tank 9081, and the top of the collection tank 9081 is threaded together as shown in the image. Figure 11The connecting sleeve 9082 shown has a filter screen 9083 at its top, which is connected to the inner cylinder 902. Limiting holes 9084 are provided on the top of both sides of the connecting sleeve 9082. Water can be collected from the water body through the provided collection tank 9081, and impurities in the water can be filtered through the provided filter screen 9083 to prevent them from directly entering the collection tank 9081. The limiting structure 909 includes a limiting rod 9091. One end of the limiting rod 9091 is inserted into the limiting hole 9084, and the other end of the limiting rod 9091 passes through a slot 9092 on the outer cylinder 901 and is fixedly provided with a handle 9093. A similar handle is also provided on the outside of the limiting rod 9091. Figure 12 The clamping spring 9094 shown is fitted into the limiting circular groove 9095 opened on the connecting seat 9010. The two ends of the clamping spring 9094 are fixedly connected to the inner wall of the limiting circular groove 9095 and the pad 9096 provided on the outside of the clamping spring 9094, respectively. Pulling the handle 9093 drives the limiting rod 9091 to move, separating the limiting rod 9091 from the limiting hole 9084. This separates the connecting sleeve 9082 from the connecting seat 9010, and then separates the connecting sleeve 9082 from the storage tank 9081, so that the sampled water can be taken out.

[0040] By connecting the water collection mechanism 9 to the connecting rod 2, water can be collected simply by holding the handheld rod 1. The operation is relatively simple and convenient. When not in use, the connecting rod 2 can be pushed into the handheld rod 1, and the hook 6 can be attached to the hanging rod 8. The overall structure is simple and easy to carry and move. When collecting water, the length of the traction rope 11 can be intuitively determined by the number of coating layers on the length coating 701. By accurately locating the coating 702, the length of the traction rope 11 can be further determined, thus intuitively determining the water collection depth of the collection mechanism 9. This allows for water collection at different depths according to actual water collection needs.

[0041] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sampling device used in water environment monitoring, characterized by: The device includes a handheld lever (1) and a connecting rod (2) located at one end of the handheld lever (1); a winding wheel (10) is provided inside the handheld lever (1), and a traction rope (11) is wound on the winding wheel (10); a crank (12) is provided on one side of the outside of the handheld lever (1) to drive the winding wheel (10), and a locking assembly (3) is provided on the other side of the handheld lever (1) to lock the winding wheel (10); an elastic assembly (4) is provided inside the handheld lever (1) near the connecting rod (2) to retract the connecting rod (2). One end of the connecting rod (2) is fixedly connected to the other end of the connecting rod (2), and a conveying structure (5) for conveying the traction rope (11) is fixedly provided on the other end of the connecting rod (2); a length marking component (7) is provided on the traction rope (11); the movable end of the traction rope (11) passes through the elastic component (4) and the hand handle (1) in sequence and is then wound around the conveying structure (5); a hook (6) is provided on the movable end of the traction rope (11), and a collection mechanism (9) is hung on the hook (6); a hanging rod (8) for hanging the hook (6) is fixedly provided at the bottom end of the hand handle (1); The collection mechanism (9) includes an outer cylinder (901) and an inner cylinder (902). The top of the outer cylinder (901) is fixedly provided with a hanging ring (903) that cooperates with the hook (6). The top of the outer cylinder (901) is provided with a water inlet (904) through the inner side of the hanging ring (903). The inner cylinder (902) is slidably disposed inside the outer cylinder (901). Support springs (905) are fixedly provided on both sides of the bottom end of the inner cylinder (902). The top of the inner cylinder (902) is sealed against the water inlet (904) by the elasticity of the support springs (905). The top of the inner cylinder (902) is provided with an annular groove (906) on the outer side of the water inlet (904). The outer cylinder (901) is provided with counterweights (907) on both sides. A slider (9011) is fixedly provided on the inner side of the counterweight (907). The slider (9011) is slidably disposed in a groove (9012) opened on the outer cylinder (901). One end of the slider (9011) is fixedly connected to the inner cylinder (902). A connecting seat (9010) is fixedly provided at the bottom of the inner cylinder (902). A storage structure (908) is provided inside the connecting seat (9010). Limiting structures (909) for limiting the storage structure (908) are respectively provided on both sides of the storage structure (908) inside the connecting seat (9010). The storage structure (908) includes a storage container (9081), the top of which is threadedly connected to a connecting sleeve (9082). A filter screen (9083) is provided at the top of the connecting sleeve (9082), and the top of the filter screen (9083) is connected to the inner cylinder (902). Limiting holes (9084) are provided on the top of both sides of the connecting sleeve (9082). The limiting structure (909) includes a limiting rod (9091), one end of which is inserted into a limiting hole (9084), and the other end of which passes through a slot (9092) on the outer cylinder (901) and is fixedly provided with a handle (9093). A clamping spring (9094) is fitted around the outside of the limiting rod (9091), and the clamping spring (9094) is fitted into a limiting circular groove (9095) on the connecting seat (9010). The two ends of the clamping spring (9094) are fixedly connected to the inner wall of the limiting circular groove (9095) and a pad (9096) on the outside of the clamping spring (9094), respectively. The elastic component (4) includes a fixed piece (401) and a movable piece (402). The movable piece (402) is fixedly disposed at one end of the connecting rod (2). The fixed piece (401) is located on one side of the movable piece (402) and is fixedly connected to the inner wall of the hand handle (1). A compression spring (403) is fixedly disposed on one side of the fixed piece (401). One end of the compression spring (403) is fixedly connected to the movable piece (402). A limiting slide rod (404) is slidably disposed inside the compression spring (403). One end of the limiting slide rod (404) is fixedly connected to the fixed piece (401). The other end of the limiting slide rod (404) is slidably disposed inside the connecting rod (2). Both the fixed piece (401) and the movable piece (402) have through holes (405) for the traction rope (11) to pass through.

2. The sampling device in the water environment monitoring process according to claim 1, characterized in that: The locking assembly (3) includes a connecting shaft (301) and a fixing block (302). The connecting shaft (301) is fixedly installed at the axis of the winding wheel (10). Both ends of the connecting shaft (301) are rotatably connected to the hand handle (1). The fixing block (302) is fixedly installed on the outside of the hand handle (1). A movable column (303) is slidably installed in the fixing block (302). One end of the movable column (303) passes through the hand handle (1) and is placed in the connecting groove (304) opened on the connecting shaft (301). The other end of the movable column (303) passes through the fixing block (302) and is fixedly installed with a pull block (305). The pull block (305) is provided with anti-slip texture on the outside.

3. The sampling device in the water environment monitoring process according to claim 2, characterized in that: A set of fixed rods (306) are equidistantly arranged along the circumferential direction on the inner side of the pull block (305) and outside the movable column (303). A limit post (307) is fixedly provided at one end of the fixed rod (306). The limit post (307) is slidably arranged in the limit circular groove (308) opened in the fixed block (302). A limit block (309) is fixedly provided at the top of the movable column (303). The limit block (309) is slidably arranged in the limit groove (3010) opened on the connecting shaft (301).

4. The sampling device in the water environment monitoring process according to claim 1, characterized in that: The conveying structure (5) includes a wire feeding wheel (501), which is fixedly mounted on one end of the connecting rod (2). The top of the wire feeding wheel (501) is provided with an inverted U-shaped connecting block (502). The inner side of the connecting block (502) is provided with a limiting wheel (503) for limiting the traction rope (11). An adjusting screw (504) is rotatably mounted at the middle of the top of the limiting wheel (503). The top of the adjusting screw (504) passes through the connecting block (502) and is placed on the top of the connecting block (502). Limiting springs (505) are fixedly mounted on both sides of the top of the limiting wheel (503). The top of the limiting springs (505) is fixedly connected to the connecting block (502).

5. The sampling device in the water environment monitoring process according to claim 1, characterized in that: The length marking component (7) includes alternating red and white length coatings (701), the number of layers of the length coatings (701) corresponding to the length of the traction rope (11), the exterior of the length coatings (701) being provided with a waterproof membrane, the interval between two adjacent length coatings (701) being one meter, and a black alignment coating (702) being provided on the traction rope (11) between two adjacent length coatings (701), the exterior of the alignment coating (702) being provided with a waterproof membrane.

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