A sewage sampling device

Abstract

The utility model discloses a sewage sampling device, include: the bottom plate that a plurality of through -hole is arranged in middle part, the top fixed connection of bottom plate has the limit pipe, the outside slide connection of limit pipe has fixed pressing plate, the sampling cylinder, sampling cylinder is placed between bottom plate and fixed pressing plate, the inside slide connection of sampling cylinder has the piston, the utility model has the beneficial effect is: through the electrification of electromagnet, utilize the repulsion of electromagnet and permanent magnet to be greater than the elasticity of spring no.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sampling technology, specifically a wastewater sampling device. Background Technology

[0002] Wastewater sampling is the process of collecting water samples during wastewater treatment or in the environment. It is usually used to monitor water quality, detect pollutants, and evaluate treatment effectiveness. Current sampling methods often involve collecting water samples in buckets and then distributing them. Furthermore, because the top of the bucket is open, it is not possible to sample at specific depths of the water body, resulting in the inability to obtain highly representative water samples. Utility Model Content

[0003] The purpose of this invention is to provide a wastewater sampling device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wastewater sampling device, comprising:

[0005] A base plate with multiple through holes in the middle is fixedly connected to the top of the base plate, and a fixed pressure plate is slidably connected to the outside of the limiting tube.

[0006] A sampling cylinder is placed between the base plate and the fixed pressure plate. A piston is slidably connected inside the sampling cylinder. A rubber sheet is installed at the bottom of the sampling cylinder, and one end of the rubber sheet is fixedly connected to the sampling cylinder.

[0007] A rectangular lifting rod is positioned inside the limiting tube. A connecting bracket is fixed to the top of the rectangular lifting rod via a connecting frame. A piston rod is rotatably connected to the middle of the connecting bracket. The piston rod is detachably connected to the sampling cylinder.

[0008] The locking part is located at the top of the limiting tube. The locking part includes a hook plate one fixed to the top of the limiting tube and a hook plate two slidably disposed on the outside of the connecting frame. An electromagnet is fixed to the outside of the connecting frame to drive the hook plate two to be misaligned and separated from the hook plate one.

[0009] Preferably, the sampling tube has openings at both the top and bottom, and a sealing cap is threaded to the bottom of the sampling tube.

[0010] Preferably, a limiting ring is fixedly connected to the outside of the limiting tube, and a spring is sleeved on the outside of the limiting tube and between the limiting ring and the fixed pressure plate.

[0011] Preferably, a spring three is fixedly connected to the bottom of the rectangular lifting rod, and the spring three is fixedly connected to the bottom of the inner wall of the limiting tube.

[0012] Preferably, a metal rod is fixedly connected to one side of the connecting frame, the hook plate is slidably mounted on the outside of the metal rod, and a spring for driving the hook plate is sleeved on the outside of the metal rod.

[0013] Preferably, the electromagnet is fixed to the top of the connecting frame, and a permanent magnet with the same magnetic poles as the electromagnet is fixed to the top of the hook plate two, and the repulsive force between the electromagnet and the permanent magnet is greater than the elastic force of the spring two.

[0014] Preferably, a metal ring is fixed to the top of the connecting frame, and a pull tube with scale markings on the outside is fixed to the outside of the metal ring. A wire connected to an electromagnet is installed inside the pull tube. One end of the pull tube is wound around the outside of the winding rod inside the winding box, and a drive motor for driving the winding rod is fixed to one end of the winding box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The locking part consists of hook plate one and hook plate two. The top side of hook plate one and the bottom side of hook plate two are both inclined structures. When the connecting frame is pressed down, hook plate two contacts the inclined surface of hook plate one. Under the squeezing action, the two deform and reset to achieve mutual hooking and lock. By energizing the electromagnet, the repulsive force between the electromagnet and the permanent magnet is greater than the elastic force of spring two, causing hook plate two to slide along the metal rod to compress spring two, thereby achieving the misalignment and separation of hook plate one and hook plate two. The operation is convenient and quick, and it can accurately control the working state of the sampling device and sample at a specified depth. During sampling, water pushes the rubber sheet into the sampling tube. When the piston moves to the top, the rubber sheet adheres to the bottom of the sampling tube under water pressure, sealing the bottom water inlet. No additional valve device is required. The structure is simple and can effectively prevent water sample backflow, ensuring the integrity of the sampling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the base plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the sampling tube of this utility model;

[0019] Figure 4 This is a schematic diagram of the position and structure of the electromagnet of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the connecting bracket of this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the limiting tube of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the winding box of this utility model.

[0023] In the diagram: 1. Base plate; 2. Limiting tube; 3. Fixed pressure plate; 4. Spring 1; 5. Connecting bracket; 6. Piston rod; 7. Sampling cylinder; 8. Piston; 9. Rubber sheet; 10. Sealing cap; 11. Pulling tube; 12. Rewind box; 13. Drive motor; 14. Connecting frame; 15. Hook plate 1; 16. Hook plate 2; 17. Spring 2; 18. Electromagnet; 19. Permanent magnet; 20. Rectangular lifting rod; 21. Spring 3. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , 2 As shown in 3, 4, 5, 6, and 7, this utility model provides a technical solution: a sewage sampling device, characterized in that it includes: a base plate 1 with multiple through holes in the middle, a limiting tube 2 fixedly connected to the top of the base plate 1, and a fixed pressure plate 3 slidably connected to the outside of the limiting tube 2; a sampling cylinder 7 placed between the base plate 1 and the fixed pressure plate 3, a piston 8 slidably connected inside the sampling cylinder 7, a rubber sheet 9 installed at the bottom of the sampling cylinder 7, a metal plate installed at the top of the rubber sheet 9, and one end of the rubber sheet 9 fixedly connected to the sampling cylinder 7; and a rectangular lifting rod 20 that is raised and lowered inside the limiting tube 2. The bottom of the limiting tube 2 is fixedly connected to a limiting plate that is slidably connected to the rectangular lifting rod 20. The top of the rectangular lifting rod 20 is fixedly connected to a connecting bracket 5 through a connecting frame 14. The connecting bracket 5 is slidably installed on the outside of the limiting tube 2. A piston rod 6 is rotatably connected to the middle of the connecting bracket 5. The piston rod 6 is threadedly connected to the sampling cylinder 7. The locking part is located at the top of the limiting tube 2. The locking part includes a hook plate 15 fixedly connected to the top of the limiting tube 2 and a hook plate 2 16 slidably installed on the outside of the connecting frame 14. The top side of the hook plate 15 and the bottom side of the hook plate 2 16 are both inclined structures. An electromagnet 18 is fixedly connected to the outside of the connecting frame 14 to drive the hook plate 2 16 to be misaligned and separated from the hook plate 15.

[0026] It should be noted that in this embodiment, multiple limiting grooves are vertically provided on the outer side of the limiting tube 2, and multiple grooves that cooperate with the sampling tube 7 are provided on the top of the bottom plate 1. A through hole corresponding to the water inlet of the sampling tube 7 is provided in the middle of the groove. The sampling tube 7 is installed in the groove, and then the fixing plate 3 is pressed tightly on the top of the sampling tube 7. The piston rod 6 is threadedly connected to the sampling tube 7, and the connecting bracket 14 is pressed down. The connecting bracket 14 drives the connecting support 5 and the hook plate 16 to move downward. The hook plate 16 and the hook plate 15 are in inclined contact. Under the action of compression, the two deform and reset to achieve mutual hooking. At this time, the piston rod 6 pushes the piston 8 to the bottom of the sampling tube 7, and the sampling tube 7 is... When placed in water, the electromagnet 18 is energized, causing the hook plate 2 16 and hook plate 15 to be separated. Under the reset of the spring 3 21 at the bottom of the rectangular lifting rod 20, the piston rod 6 drives the piston 8 to move downward. The water pushes the rubber sheet 9 up and into the sampling tube 7. When the piston 8 moves to the top, the rubber sheet 9 adheres to the bottom of the sampling tube 7 under water pressure, thus sealing the bottom water inlet. Then the sampling tubes 7 can be lifted and removed one by one. This allows multiple sampling tubes 7 to be sampled simultaneously without subsequent repackaging.

[0027] In one embodiment, the sampling tube 7 has openings at both the top and bottom, and a sealing cap 10 is threadedly connected to the bottom of the sampling tube 7.

[0028] It should be noted that, in this embodiment, the opening at the top of the sampling tube 7 facilitates the expulsion of air from the top when the piston 8 is drawn. The opening at the bottom of the sampling tube 7 is for water to enter. After sampling is completed, when the sampling tube 7 is lifted to the shore, the sampling tube 7 is removed, and the sealing cap 10 is rotated onto the water inlet of the sampling tube 7 to seal the sampling tube 7.

[0029] In one embodiment, a limiting ring is fixed to the outside of the limiting tube 2, and a spring 4 is sleeved on the outside of the limiting tube 2 and located between the limiting ring and the fixed pressure plate 3.

[0030] It should be noted that, in this embodiment, when the sampling tube 7 is pressed and fixed, the fixing plate 3 is lifted upwards, the fixing plate 3 compresses the spring 4, the sampling tube 7 is placed in the groove at the bottom of the base plate 1, and then the external force applied to the fixing plate 3 is released, the spring 4 presses the fixing plate 3 downwards, so that the fixing plate 3 presses and fixes the sampling tube 7 on the top of the base plate 1.

[0031] In one embodiment, a spring 21 is fixedly connected to the bottom of the rectangular lifting rod 20, and the spring 21 is fixedly connected to the bottom of the inner wall of the limiting tube 2.

[0032] It should be noted that, in this embodiment, when hook plate 15 and hook plate 26 are interlocked, the rectangular lifting rod 20 is placed inside the limiting tube 2, and the rectangular lifting rod 20 compresses and stores the force of spring 3 21. When hook plate 2 16 and spring 2 17 are misaligned and separated, spring 3 21 pushes the rectangular lifting rod 20 upward. The rectangular lifting rod 20 drives the piston rod 6 and sampling cylinder 7 upward through the connecting bracket 5, thereby realizing water pumping.

[0033] In one embodiment, a metal rod is fixedly connected to one side of the connecting frame 14, and a hook plate 16 is slidably installed on the outside of the metal rod. A spring 17 for driving the hook plate 16 is sleeved on the outside of the metal rod. An electromagnet 18 is fixedly connected to the top of the connecting frame 14, and a permanent magnet 19 with the same magnetic pole as the electromagnet 18 is fixedly connected to the top of the hook plate 16. The repulsive force between the electromagnet 18 and the permanent magnet 19 is greater than the elastic force of the spring 17.

[0034] It should be noted that in this embodiment, when hook plate 15 and hook plate 26 need to be separated by misalignment, the control electromagnet 18 is energized, and a repulsive force is generated between the electromagnet 18 and the permanent magnet 19. Under the action of the repulsive force, hook plate 26 slides along the metal rod and compresses spring 27. Since hook plate 26 and spring 27 both have corresponding notches at their ends, when the notches correspond to the solid parts, hook plate 15 and hook plate 26 move upward under the action of spring 321 and limit tube 2. In this way, the rectangular lifting rod 20 lifts the connecting bracket 5 upward through the connecting frame 14.

[0035] In one embodiment, a metal ring is fixed to the top of the connecting frame 14, and a pull tube 11 with scale markings on the outside is fixed to the outside of the metal ring. A wire connected to an electromagnet 18 is installed inside the pull tube 11. One end of the pull tube 11 is wound around the outside of the winding rod inside the winding box 12, and a drive motor 13 for winding the winding rod is fixed to one end of the winding box 12.

[0036] It should be noted that in this embodiment, the pull tube 11 is a nylon tube. The pull tube 11 has a wire connected to the electromagnet 18 installed inside. The winding box 12 has a battery box, a switch connected to the electromagnet 18, and an electric slip ring connected to the wire installed inside. The winding box 12 has a wheel-type meter connected to the winding rod drive on the outside, which is convenient for observing the depth of the descent of the base plate 1. The winding rod is driven by the drive motor 13 to wind up the pull tube 11, and the connecting frame 14 is lifted upward by the pull tube 11.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater sampling device, characterized in that: include: A base plate (1) with multiple through holes in the middle is fixedly connected to the top of the base plate (1), and a limiting tube (2) is slidably connected to the outside of the limiting tube (2). Sampling tube (7), the sampling tube (7) is placed between the base plate (1) and the fixed pressure plate (3), the inside of the sampling tube (7) is slidably connected to a piston (8), and a rubber sheet (9) is installed at the bottom of the sampling tube (7), one end of the rubber sheet (9) is fixedly connected to the sampling tube (7); A rectangular lifting rod (20) is raised and lowered inside the limiting tube (2). The top of the rectangular lifting rod (20) is fixed to a connecting bracket (5) through a connecting frame (14). A piston rod (6) is rotatably connected to the middle of the connecting bracket (5). The piston rod (6) is detachably connected to the sampling tube (7). The locking part is located at the top of the limiting tube (2). The locking part includes a hook plate one (15) fixed to the top of the limiting tube (2) and a hook plate two (16) slidably disposed on the outside of the connecting frame (14). An electromagnet (18) is fixed to the outside of the connecting frame (14) to drive the hook plate two (16) to be misaligned and separated from the hook plate one (15).

2. The wastewater sampling device according to claim 1, characterized in that: The sampling tube (7) has openings at both the top and bottom, and a sealing cap (10) is threadedly connected to the bottom of the sampling tube (7).

3. The wastewater sampling device according to claim 1, characterized in that: A limiting ring is fixed to the outside of the limiting tube (2), and a spring (4) is sleeved on the outside of the limiting tube (2) and between the limiting ring and the fixed pressure plate (3).

4. The wastewater sampling device according to claim 1, characterized in that: The bottom of the rectangular lifting rod (20) is fixedly connected to a spring three (21), and the spring three (21) is fixedly connected to the bottom of the inner wall of the limiting tube (2).

5. A wastewater sampling device according to claim 1, characterized in that: A metal rod is fixed to one side of the connecting frame (14), and the hook plate (16) is slidably installed on the outside of the metal rod. A spring (17) for driving the hook plate (16) is sleeved on the outside of the metal rod.

6. A wastewater sampling device according to claim 1, characterized in that: The electromagnet (18) is fixed to the top of the connecting frame (14), and a permanent magnet (19) with the same magnetic pole as the electromagnet (18) is fixed to the top of the hook plate (16), and the repulsive force between the electromagnet (18) and the permanent magnet (19) is greater than the elastic force of the spring (17).

7. A wastewater sampling device according to claim 6, characterized in that: A metal ring is fixed to the top of the connecting frame (14), and a pull tube (11) with scale markings on the outside is fixed to the outside of the metal ring. A wire connected to an electromagnet (18) is installed inside the pull tube (11). One end of the pull tube (11) is wound around the outside of the winding rod inside the winding box (12). One end of the winding box (12) is fixed to a drive motor (13) for driving the winding rod.

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