Wastewater detection sampling device
By designing a sampling device that includes a cup body, a guide tube, an inverted T-shaped pull rod, and a sealing sleeve, the problem of water samples being easily spilled or splashed out when not being physically present when collecting water is solved, achieving stable sampling and saving physical effort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technologies, when water is not collected from the surface, the water sample from the wastewater sampling device is easily knocked over or spilled out in large quantities, resulting in sampling failure or insufficient sample volume.
A sampling device was designed, comprising a cup body, a guide tube, an inverted T-shaped pull rod, a sealing sleeve, a compression spring, a rod body, and a pull rope. The sampling is achieved by extending the rod body to collect water, and the sealing sleeve and compression spring work together to achieve non-personal water collection and seal the water inlet during the recycling process to prevent water sample leakage.
Stable water sampling without close contact was achieved, reducing physical exertion during the sampling process, ensuring that the water sample was not spilled or splashed out, and guaranteeing a sufficient sample quantity.
Smart Images
Figure CN224471311U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of environmental monitoring technology, specifically relating to a wastewater detection and sampling device. Background Technology
[0002] Wastewater testing is a crucial component of environmental monitoring, primarily used to assess the degree of water pollution and the effectiveness of treatment. Wastewater testing is a systematic project involving multiple stages, including sampling, analysis, data processing, and quality control. Sampling is the first and most critical step in wastewater testing, as only representative wastewater samples can accurately reflect the actual concentration of pollutants. When sampling wastewater at discharge points in outdoor water bodies (such as rivers and lakes), to accurately reflect the water quality, areas such as turbulent zones and sediment accumulation areas at the discharge point should be avoided. Therefore, non-close-range sampling is sometimes necessary, such as extending the sampling container to a distance from the shore or to a steep slope or embankment for sampling.
[0003] like Figure 1 The existing telescopic rod sampler shown consists of a stainless steel telescopic rod, a U-shaped bracket, and a sampling cup. The U-shaped bracket is fixed to one end of the stainless steel telescopic rod, and the two ends of the U-shaped bracket are hinged to the top two side walls of the sampling cup. During non-close-range water collection, the stainless steel telescopic rod is used to extend the sampling cup to collect wastewater. However, after the sampling cup is filled with water, it is difficult for the sampling personnel to lift the stainless steel telescopic rod to retrieve the sampling cup. During the retrieval of the sampling cup, there is a problem of bumps or shaking that causes the water sample to be knocked over or spill out in large quantities, resulting in sampling failure or insufficient sample volume. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model proposes a wastewater detection and sampling device to solve the problem mentioned in the background technology that water samples taken from outdoor water bodies without close proximity are easily knocked over or splashed out in large quantities.
[0005] This utility model is achieved through the following technical solution:
[0006] A wastewater testing and sampling device includes a cup body and a cup lid threadedly connected to the top of the cup body. The bottom center of the cup body has a water inlet hole. The inner bottom of the cup body is welded or integrally formed with a guide cylinder coaxial with it. The water inlet hole is located inside the guide cylinder. The inner diameter of the guide cylinder is larger than the diameter of the water inlet hole. The bottom side wall of the guide cylinder has a plurality of water inlet grooves evenly distributed in a ring around its central axis. The top of the guide cylinder is threadedly connected to the cylinder lid.
[0007] It includes an inverted T-shaped pull rod and a compression spring. The bottom end of the inverted T-shaped pull rod is slidably set inside the guide cylinder, and its top end passes through the cylinder cover and the cup cover in sequence. A sealing sleeve for blocking the water inlet hole is fixed at the bottom of the inverted T-shaped pull rod. The compression spring is fitted on the inverted T-shaped pull rod, and its two ends abut against the bottom stepped surface of the inverted T-shaped pull rod and the inner top surface of the cylinder cover, respectively. In the initial state, the compression spring is in a compressed state, and the sealing sleeve blocks the water inlet hole.
[0008] It also includes a rod and a pull rope. One end of the rod is connected to the cup lid, and the other end of the pull rope is connected to the top of the inverted T-shaped pull rod. The other end of the rod is the handle. The cup is extended through the rod to collect wastewater, enabling non-close-range water sampling. After water collection, the sealing sleeve blocks the water inlet to prevent water sample leakage from the cup. The cup can be retrieved through the rod to complete non-close-range wastewater sampling. During the retrieval of the cup, the sampling personnel can drag it without continuously lifting the cup, saving physical strength. With the sealing sleeve blocking the water inlet and the cup lid sealing, the amount of water sample poured out or splashed out of the cup can be reduced, ensuring sufficient water sample.
[0009] Furthermore, one end of the rod is detachably connected to the cup lid, and the angle between its central axis and the central axis of the cup lid is adjustable, which can adjust the tilt angle of the cup body relative to the rod.
[0010] Furthermore, a fixed pulley is installed on the top surface of the cup lid, and the pull rope is wrapped around the fixed pulley. The end of the pull rope away from the inverted T-shaped pull rod is connected to the handle end of the rod body, which can reduce the wear of the pull rope when pulling and releasing.
[0011] Furthermore, a cover plate is provided on the top of the fixed pulley, and the two ends of the cover plate are fixed to the pulley frame of the fixed pulley so that it does not rotate with the fixed pulley. The cover plate can block the pull rope and prevent the pull rope from detaching from the fixed pulley.
[0012] Furthermore, the rod is a telescopic rod structure with adjustable length, which can adjust the length of the rod to control the distance of water collection.
[0013] Furthermore, the handle end of the rod is equipped with a reel for winding and unwinding the pull rope, so that the length of the pull rope can be adapted to the length of the telescopic rod structure, and a crank handle for rotating the reel is provided at the center of the reel.
[0014] Furthermore, the handle end of the rod is provided with a rocker arm, and the reel is located between the cup lid and the rocker arm. The middle part of the rocker arm is hinged to the outer wall of the rod body. A tension spring is provided between the end of the rocker arm near the reel and the rod body. The outer wall surface of the reel has several slots evenly distributed in a ring around its central axis. In the initial state, one end of the rocker arm is inserted into the slot to lock the reel, so that the reel will not rotate automatically. When it is necessary to rotate the reel, the other end of the rocker arm is pressed down, the tension spring is stretched, the rocker arm is separated from the slot, so that the reel can be rotated by the crank handle. After releasing the other end of the rocker arm, under the rebound contraction of the tension spring, the rocker arm is driven to rotate, so that one end of the rocker arm is re-inserted into the slot to lock the reel.
[0015] Furthermore, a sealing ring is fitted on the top of the inverted T-shaped pull rod, and the sealing ring is tightly fixed on the inverted T-shaped pull rod. The sealing ring is located on the top surface of the cup lid. In the initial state, the sealing ring blocks the through hole in the center of the top surface of the cup lid. After water is taken from the cup, when the pull rope is released, the sealing ring can block the through hole in the center of the top surface of the cup lid, so as to reduce the water sample in the cup from splashing out from the through hole in the center of the top surface of the cup lid during the cup recovery process.
[0016] As can be seen from the above technical solution, the wastewater detection and sampling device provided by this utility model has the following advantages:
[0017] This sampling device can be used for non-close-range water sampling. The sampling personnel can hold the handle end of the rod to extend the cup to collect wastewater. By pulling the other end of the pull rope, the inverted T-shaped pull rod and the sealing sleeve can be moved upward in the guide tube. The compression spring is further compressed, thereby opening the water inlet at the bottom of the cup, allowing wastewater in the water to enter the cup through the water inlet. Air in the cup is discharged through the central hole of the cup lid. After the water is collected, the pull rope is released. Under the rebound of the compression spring, the inverted T-shaped pull rod and the sealing sleeve are pushed downward in the guide tube to block the water inlet, thereby preventing water sample leakage from the cup. The sampling personnel can retrieve the cup through the rod to complete the non-close-range wastewater sampling. During the retrieval of the cup, the sampling personnel can drag it without continuously lifting the cup, saving physical strength. With the sealing sleeve blocking the water inlet and the cup lid sealing, the amount of water sample poured out or splashed out of the cup can be reduced, ensuring sufficient water sample. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is a three-dimensional structural diagram of an existing telescopic rod sampler.
[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0021] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A in the middle.
[0022] Figure 4 for Figure 2 Enlarged schematic diagram of the local structure at point B.
[0023] Figure 5 This is a three-dimensional structural diagram of the present invention.
[0024] Figure 6 This is a schematic diagram of the exploded structure of this utility model.
[0025] The components in the diagram are named as follows: 1. Stainless steel telescopic rod; 2. U-shaped bracket; 3. Sampling cup; 4. Cup body; 4.1. Water inlet; 5. Guide tube; 5.1. Water inlet groove; 6. Inverted T-shaped pull rod; 7. Sealing sleeve; 8. Compression spring; 9. Cylinder cover; 10. Cup cover; 11. Fixed pulley; 12. U-shaped bracket; 13. Angle adjustment joint; 14. Rod body; 15. Pull rope; 16. Reel; 16.1. Slot; 17. Rocker; 17.1. V-shaped part; 17.2. Locking part; 17.3. Pressing part; 18. Tension spring; 19. Cover plate; 20. Sealing ring; 21. Hole seat; 22. Arc-shaped hoop; 23. Handle. Detailed Implementation
[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0027] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] A wastewater detection and sampling device, such as Figure 2 , Figure 5 and Figure 6 As shown, it mainly consists of a cup body 4, a guide cylinder 5, an inverted T-shaped pull rod 6, a sealing sleeve 7, a compression spring 8, a cylinder cover 9, a cup cover 10, a fixed pulley 11, a rod body 14, a pull rope 15, a reel 16, a rocker 17, a tension spring 18, a cover plate 19, and a sealing ring 20.
[0029] like Figure 2 and Figure 3 As shown, the cup lid 10 is threadedly connected to the top of the cup body 4. A water inlet hole 4.1 is provided at the center of the bottom of the cup body 4. A guide cylinder 5 coaxially formed is integrally formed on the inner bottom of the cup body 4. The water inlet hole 4.1 is located inside the guide cylinder 5. The inner diameter of the guide cylinder 5 is larger than the diameter of the water inlet hole 4.1. Multiple water inlet grooves 5.1 are evenly distributed in a ring around its central axis on the bottom side wall of the guide cylinder 5. A cylinder lid 9 is threadedly connected to the top of the guide cylinder 5.
[0030] The bottom of the cup body 4 is shaped like a frustum of a cone, which makes it easy for the bottom of the cup body 4 to sink into the water when taking water.
[0031] like Figure 2 and Figure 3 As shown, the bottom end of the inverted T-shaped pull rod 6 is slidably disposed in the guide cylinder 5, and its top end passes through the cylinder cover 9 and the cup cover 10 in sequence. Specifically, the center of the cylinder cover 9 and the cup cover 10 is provided with a through hole through which the top end of the inverted T-shaped pull rod 6 can pass. The outer side wall of the rod body of the inverted T-shaped pull rod 6 is in close contact with the inner side wall of the through hole in the center of the cylinder cover 9. The inner diameter of the through hole in the center of the cup cover 10 is larger than the outer diameter of the inverted T-shaped pull rod 6 so that the air in the cup body 4 can be discharged from the through hole in the center of the cup cover 10. The bottom of the inverted T-shaped pull rod 6 is fixed with a sealing sleeve 7 for sealing the water inlet hole 4.1. The compression spring 8 is fitted on the inverted T-shaped pull rod 6, and its two ends abut against the bottom step surface of the inverted T-shaped pull rod 6 and the inner top surface of the cylinder cover 9, respectively.
[0032] like Figure 2 and Figure 3 As shown, the sealing ring 20 is fitted onto the top of the inverted T-shaped pull rod 6, and the sealing ring 20 is tightly fixed to the inverted T-shaped pull rod 6. The sealing ring 20 is located on the top surface of the cup lid 10. In the initial state, the compression spring 8 is in a compressed state, the sealing sleeve 7 blocks the water inlet hole 4.1, and the sealing ring 20 blocks the through hole at the center of the top surface of the cup lid 10. After water is taken from the cup body 4, when the pull rope 15 is released, the sealing sleeve 7 blocks the water inlet hole 4.1, and the sealing ring 20 can block the through hole at the center of the top surface of the cup lid 10, so as to reduce the water sample in the cup body 4 from splashing out from the through hole at the center of the top surface of the cup lid 10 during the process of recovering the cup body 4.
[0033] like Figures 2 to 6 As shown, the rod 14 is an adjustable telescopic rod structure, which can adjust the length of the rod 14 to control the distance of water intake; specifically, the telescopic rod structure is a conventional existing structure, such as... Figure 1 The stainless steel telescopic rod 1 shown is an existing telescopic rod sampler, or a stainless steel landing net rod or a carbon fiber landing net rod, such as those used in fishing gear.
[0034] One end of the rod 14 is connected to the cup lid 10, one end of the pull rope 15 is connected to the top of the inverted T-shaped pull rod 6, and the other end of the rod 14 is the handle end. The handle end is equipped with a reel 16 for winding and unwinding the pull rope 15, so that the length of the pull rope 15 can be adapted to the length of the rod 14 of the telescopic rod structure. A crank 23 for rotating the reel 16 is provided in the center of the reel 16.
[0035] The handle end of the rod 14 is provided with a rocker 17, and the reel 16 is located between the cup lid 10 and the rocker 17. The middle part of the rocker 17 is hinged to the outer wall of the rod 14. A tension spring 18 is provided between the end of the rocker 17 near the reel 16 and the rod 14. The outer wall surface of the reel 16 is provided with a plurality of slots 16.1 evenly distributed in a ring around its central axis. In the initial state, one end of the rocker 17 is inserted into the slot 16.1 to lock the reel 16, so that the reel 16 will not rotate automatically. When it is necessary to rotate the reel 16, the other end of the rocker 17 is pressed down, the tension spring 18 is stretched, the rocker 17 is separated from the slot 16.1, so that the reel 16 can be rotated by the crank 23. After the other end of the rocker 17 is released, under the rebound contraction of the tension spring 18, the rocker 17 is driven to rotate, so that one end of the rocker 17 is re-inserted into the slot 16.1 to lock the reel 16.
[0036] Specifically, the bottom of the reel frame of the reel 16 and the bottom of the hinge seat connected in the middle of the rocker arm 17 are integrally formed with an arc-shaped hoop plate 22. The arc-shaped hoop plate 22 can be clamped on the rod body 14, and the arc-shaped hoop plate 22 is welded to the outer side wall of the rod body 14 to fix the installation position of the rocker arm 17 of the reel 16.
[0037] like Figure 4 As shown, the rocker 17 is composed of a V-shaped part 17.1, a locking part 17.2, and a pressing part 17.3. The locking part 17.2 can be inserted into the slot 16.1. When the sampling personnel hold the handle end of the rod body 14, their fingers can press the pressing part 17.3 to rotate the rocker 17. Hole seats 21 are welded to the left end of the V-shaped part 17.1 and the outer wall of the rod body 14. The hooks at both ends of the tension spring 18 are hooked onto the two hole seats 21 respectively.
[0038] like Figures 2 to 6 As shown, a fixed pulley 11 is installed on the top surface of the cup lid 10, and a pull rope 15 is wrapped around the fixed pulley 11. The end of the pull rope 15 away from the inverted T-shaped pull rod 6 is connected to the handle end of the rod body 14. Pulling and releasing the pull rope 15 can reduce the wear of the pull rope 15.
[0039] The top of the fixed pulley 11 is provided with a cover plate 19. The two ends of the cover plate 19 are fixed to the wheel frame of the fixed pulley 11 so that it does not rotate with the fixed pulley 11. The cover plate 19 can block the pull rope 15 and prevent the pull rope 15 from detaching from the fixed pulley 11.
[0040] As a preferred embodiment, in this example, Figure 2 and Figure 3 As shown, one end of the rod 14 is detachably connected to the cup lid 10, and the angle between its central axis and the central axis of the cup lid 10 is adjustable, which can adjust the tilt angle of the cup body 4 relative to the rod 14.
[0041] Specifically, a U-shaped bracket 12 is welded to the top surface of the cup lid 10, and an angle adjustment connector 13 is threaded to one end of the rod 14 near the cup lid 10, making it detachable. One end of the angle adjustment connector 13 is hinged to the U-shaped bracket 12, and the hinge shaft is a double-ended screw. The middle part of the double-ended screw is welded and fixed to the angle adjustment connector 13, and both ends of the screw pass through the U-shaped bracket 12 and are fitted with nuts or bolts. When the nuts or bolts are tightened, the angle adjustment connector 13 and the U-shaped bracket 12 can be fixed together. When the nuts or bolts are loosened, the angle adjustment connector 13 and the U-shaped bracket 12 can be rotated relative to each other to achieve angle adjustment.
[0042] The working principle of this embodiment:
[0043] When the sampling device is used for non-personal water sampling, the sampling personnel hold the handle end of the rod 14 to extend the cup body 4 to collect wastewater. Their fingers press down on the pressing part 17.3 to disengage the locking part 17.2 from the slot 16.1, thus releasing the lock on the reel 16. Their other hand can crank the handle 23 to rotate the reel 16, using the reel 16 to wind up the pull rope 15. The pull rope 15 pulls the inverted T-shaped pull rod 6, causing the inverted T-shaped pull rod 6 and the sealing sleeve 7 to move upwards within the guide tube 5. The compression spring 8 is further compressed, thereby opening the water inlet 4.1 at the bottom of the cup body 4. After the fingers release the pressing part 17.3, the spring 18 rebounds, causing the rocker plate 17 to rotate. This causes the locking part 17.2 of the rocker plate 17 to re-engage into the slot 16.1, locking the reel 16 and ensuring that the water inlet 4.1 is open. Wastewater in the water body enters the cup body 4 through the inlet hole 4.1. Air inside the cup body 4 is discharged through the central through hole of the cup lid 10. After water collection, press down the pressing part 17.3 again with your finger to release the lock on the reel 16. Under the rebound action of the compression spring 8, push the inverted T-shaped pull rod 6 and the sealing sleeve 7 downward in the guide tube 5 to block the inlet hole 4.1. The sealing ring 20 blocks the through hole at the center of the top surface of the cup lid 10, thereby preventing water sample leakage from the cup body 4. The sampling personnel retrieve the cup body 4 through the rod 14 to complete the non-close-range sampling of wastewater. During the retrieval of the cup body 4, the sampling personnel can use the dragging method, without having to continuously lift the cup body 4, which can save physical strength. With the sealing sleeve 7 blocking the inlet hole 4.1 and the cup lid 10 sealing, the amount of water sample poured out or splashed out of the cup body 4 can be reduced, ensuring that the water sample is sufficient.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A wastewater detection and sampling device, comprising a cup body (4) and a cup lid (10), characterized in that: The bottom center of the cup body (4) is provided with a water inlet hole (4.1), and a guide cylinder (5) coaxial with it is fixed at the bottom of the cup body (4). Multiple water inlet grooves (5.1) are evenly distributed in a ring around its central axis on the bottom side wall of the guide cylinder (5). The top of the guide cylinder (5) is threaded with a cylinder cap (9). Includes an inverted T-shaped pull rod (6) and a compression spring (8). The bottom end of the inverted T-shaped pull rod (6) is slidably disposed inside the guide tube (5), and its top end passes through the tube cover (9) and the cup cover (10) in sequence. A sealing sleeve (7) for sealing the water inlet hole (4.1) is fixed at the bottom of the inverted T-shaped pull rod (6). The compression spring (8) is fitted on the inverted T-shaped pull rod (6), and its two ends abut against the bottom step surface of the inverted T-shaped pull rod (6) and the inner top surface of the tube cover (9) respectively. It also includes a rod (14) and a pull rope (15), one end of the rod (14) is connected to the cup lid (10), and one end of the pull rope (15) is connected to the top of the inverted T-shaped pull rod (6).
2. The wastewater detection and sampling device according to claim 1, characterized in that: One end of the rod (14) is detachably connected to the cup lid (10), and the angle between its central axis and the central axis of the cup lid (10) is adjustable.
3. The wastewater detection and sampling device according to claim 1 or 2, characterized in that: The top surface of the cup lid (10) is equipped with a fixed pulley (11), and the pull rope (15) is wrapped around the fixed pulley (11). The end of the pull rope (15) away from the inverted T-shaped pull rod (6) is connected to the handle end of the rod body (14).
4. The wastewater detection and sampling device according to claim 3, characterized in that: The top of the fixed pulley (11) is provided with a cover plate (19), and the two ends of the cover plate (19) are fixed on the wheel frame of the fixed pulley (11).
5. The wastewater detection and sampling device according to claim 4, characterized in that: The rod (14) is a telescopic rod structure with adjustable length.
6. The wastewater detection and sampling device according to claim 5, characterized in that: The handle end of the rod (14) is equipped with a reel (16) for winding and unwinding the pull rope (15), and a crank (23) for rotating the reel (16) is provided at the center of the reel (16).
7. The wastewater detection and sampling device according to claim 6, characterized in that: The handle end of the rod (14) is provided with a rocker plate (17), and the reel (16) is located between the cup lid (10) and the rocker plate (17). The middle part of the rocker plate (17) is hinged to the outer wall of the rod (14). A tension spring (18) is provided between the end of the rocker plate (17) near the reel (16) and the rod (14). The outer wall surface of the reel (16) is provided with a number of slots (16.1) evenly distributed in a ring around its central axis. In the initial state, one end of the rocker plate (17) is inserted into the slot (16.1) to lock the reel (16).
8. The wastewater detection and sampling device according to claim 1, characterized in that: The top of the inverted T-shaped pull rod (6) is fitted with a sealing ring (20), and the sealing ring (20) is tightly fixed on the inverted T-shaped pull rod (6). The sealing ring (20) is located on the top surface of the cup lid (10).