Sampling device with impurity removal function for preparing water quality detection standard solution

Abstract

The utility model relates to the technical field of water quality sampling, and discloses a sampling device with an impurity removal function for preparing a water quality detection standard solution, which comprises a sampling barrel, an upper plate and a balancing weight, a first screw block is fixed at the bottom of the upper plate, so that the upper plate is connected above the sampling barrel, and a through opening is formed in the surface of the upper plate; a filter screen is fixedly embedded into the opening, a second screw block is fixedly connected to the surface of the balancing weight, and a screw groove is formed in the bottom of the sampling barrel, so that the balancing weight is connected to the bottom of the sampling barrel. According to the technical scheme, the detachable upper plate is connected to the upper portion of the sampling barrel, a water sample can be filtered through the filter screen during sampling, the filter screen can be detached after sampling, the bottom balancing weight is connected to the upper portion to block the sampling barrel, and the situation that impurities filtered by the filter screen are smashed and mixed into the water sample again due to the fact that the water sample shakes and acts on the filter screen during transferring is avoided; the filter screen can be conveniently cleaned, and the upper part of the filter screen with different pore diameters can be replaced, so that different sampling requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling, in particular to a sampling device for preparing a water quality detection standard solution with an impurity removal function. Background Art

[0002] Water quality testing is an important task for many places, such as whether drinking water meets water quality standards, whether factory wastewater meets discharge standards, whether pond water quality is harmful to organisms, etc. Therefore, it is necessary to test the corresponding water quality.

[0003] Before testing, it is necessary to filter out floating plants or impurities that may affect the test. The sampling container is usually not convenient for filtering impurities, or a fixed filter structure is provided. It is not convenient to clean the filter after filtration, and impurities are easily mixed into the water sample again. Therefore, we propose a sampling device for preparing a standard solution for water quality testing with an impurity removal function. Utility Model Content

[0004] The purpose of the utility model is to provide a sampling device for preparing a standard solution for water quality testing with a function of removing impurities. A detachable upper plate is arranged to be connected to the top of a sampling tube. A filter screen can be used to filter the water sample during sampling. After sampling, the device can be removed and the bottom counterweight block can be connected to the top to seal the sampling tube, so as to avoid the shaking of the water sample and the action of the filter screen during transfer, so that the impurities filtered by the filter screen are not broken up and mixed into the water sample again, and the filter screen can be easily cleaned. The top of the filter screen with different apertures can also be replaced to meet different sampling needs, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling device for preparing a standard solution for water quality testing with an impurity removal function, comprising a sampling barrel, an upper plate and a counterweight block, wherein a first screw block is fixed to the bottom of the upper plate, and the upper plate is connected to the top of the sampling barrel by screwing the first screw block into the upper interior of the sampling barrel; a through opening is provided on the surface of the upper plate, and a filter screen is embedded and fixed in the opening; a second screw block is connected and fixed to the surface of the counterweight block, and a screw groove is provided on the bottom of the sampling barrel, and the counterweight block is connected to the bottom of the sampling barrel by screwing the second screw block into the screw groove.

[0006] By adopting the above technical solution, after the sampling tube is put into the water area, the water sample enters the sampling tube after being filtered, and then the sampling tube is lifted up, and then the counterweight block and the upper plate are unscrewed, and then the sampling tube is connected again after repositioning, so that the sealing of the sampling tube and the carrying of the upper plate can be achieved, and impurities filtered by the filter can be prevented from being broken up and mixed into the water during transfer and shaking.

[0007] Optionally, connecting rings are welded and fixed on both side surfaces of the upper side of the sampling tube, and connecting ropes are connected to the connecting rings.

[0008] By adopting the above technical solution, connecting ropes for pulling are connected to the upper parts of both sides of the sampling tube by means of connecting rings.

[0009] Optionally, the ends of the connecting rope are connected to the same lifting rope, and the diameter of the lifting rope is larger than the diameter of the connecting rope.

[0010] By adopting the above technical solution, the sampling tube can be lifted by simultaneously pulling the two connecting ropes through the lifting rope.

[0011] Optionally, the upper inner surface of the sampling barrel and the inner surface of the screw barrel are both provided with internal threads, and the outer surface of the first screw block and the outer surface of the second screw block are both provided with external threads.

[0012] By adopting the above technical solution, the connection and locking of the upper plate and the counterweight plate are achieved through the cooperation between the internal thread and the external thread.

[0013] Optionally, the size of the internal thread is adapted to the size of the external thread.

[0014] By adopting the above technical solution, after the upper plate and the counterweight block are swapped, the first screw block and the second screw block are also swapped, and the purpose of connecting the two screw blocks to the two ends of the sampling tube after swapping their positions can still be achieved.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The technical solution of the present application is to set a detachable upper plate connected to the top of the sampling tube. The filter screen can be used to filter the water sample during sampling. After sampling, the upper plate can be removed and the bottom counterweight block can be connected to the top to seal the sampling tube, so as to avoid the shaking of the water sample and the action of the filter screen during transfer, so that the impurities filtered by the filter screen are not broken up and mixed into the water sample again, and the filter screen can be easily cleaned. The upper part containing the filter screen with different apertures can also be replaced to meet different sampling needs.

[0017] 2. The technical solution of the present application counterweights the bottom of the sampling tube by setting a counterweight block, and the counterweight block can be easily removed and connected to the top to act as a sealing cover to seal the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the sampling device for preparing a water quality testing standard solution with impurity removal function of the utility model;

[0020] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a sampling device for preparing a standard solution for water quality testing with an impurity removal function.

[0021] In the figure: 1, sampling tube; 11, screw groove; 2, upper plate; 21, opening; 211, filter screen; 22, first screw block; 3, counterweight block; 31, second screw block; 4, connecting ring; 41, connecting rope; 411, lifting rope. DETAILED DESCRIPTION

[0022] See also Figure 1-2 The utility model provides a technical solution: a sampling device for preparing a standard solution for water quality testing with an impurity removal function, comprising a sampling tube 1, an upper plate 2 and a counterweight 3, connecting rings 4 are welded and fixed on the upper surfaces of both sides of the sampling tube 1, and connecting ropes 41 are connected to the connecting rings 4 on both sides, and the ends of the two connecting ropes 41 are connected to the same lifting rope 411, and the connecting rope 41 can be pulled by the lifting rope 411, thereby realizing the pulling of the sampling tube 1.

[0023] The upper plate 2 is placed horizontally above the sampling tube 1, and a first screw block 22 is fixed at the bottom of the upper plate 2. The outer ring of the first screw block 22 and the upper interior of the sampling tube 1 are respectively provided with external threads and internal threads. The first screw block 22 is screwed into the upper interior of the sampling tube 1 through the cooperation of the internal thread and the external thread, so that the upper plate 2 is connected to the upper part of the sampling tube 1. A through opening 21 is opened on the surface of the upper plate 2, and a filter screen 211 is embedded and fixed in the opening 21. During sampling, the water sample will be filtered by the filter screen 211 and then enter the sampling tube 1. The upper plate 2 can also be removed to replace the filter screen 211 with different apertures, and it is convenient to clean the filter screen 211.

[0024] The counterweight block 3 is arranged at the bottom of the sampling tube 1, and the second screw block 31 is connected and fixed on the surface of the counterweight block 3. A screw groove 11 is opened at the bottom of the sampling tube 1. The outer circle of the second screw block 31 and the inside of the screw groove 11 are respectively provided with external threads and internal threads. The second screw block 31 is screwed into the screw groove 11 through the cooperation of the internal thread and the external thread, and the counterweight block 3 is locked at the bottom of the sampling tube 1, which can play a role in balancing the bottom of the sampling tube 1 and facilitate the sinking of the sampling tube 1 for sampling. The size of the internal thread is adapted to the size of the external thread, and the external threads of the first screw block 22 and the second screw block 31 are the same, and the internal thread of the sampling tube 1 is the same as the internal thread of the screw groove 11, which can meet the requirements of the counterweight block 3 and the upper plate 2 being exchanged and connected, so that the counterweight block 3 can be used to seal the top of the sampling tube 1 and carry and transfer the upper plate 2.

[0025] When in use, the sampling tube 1 is held by the lifting rope 411 and the connecting rope 41. After holding the lifting rope 411 firmly, the sampling tube 1 is thrown into the water area where sampling is required. Under the counterweight action of the counterweight block 3, the sampling tube 1 sinks into the water in a vertical state, and the water in the water area passes through the filter screen 211 of the opening 21 and enters the sampling tube 1. Then, the sampling tube 1 is lifted out of the water by the lifting and connecting rope 41. Then, when the upper plate 2 is rotated, the first screw block 22 is screwed out from the upper inside of the sampling tube 1, and at the same time, the counterweight block 3 is rotated to screw the second screw block 31 out of the screw groove 11. Then, the two screws are exchanged to make the counterweight block 3 The second screw block 31 of the weight block 3 is screwed into the upper interior of the sampling tube 1, and the counterweight block 3 is used to seal the top of the sampling tube 1. The first screw block 22 of the upper plate 2 is screwed into the screw groove 11 to temporarily fix the upper plate 2 under the sampling tube 1 for easy carrying. After entering the laboratory, the upper plate 2 and the counterweight block 3 are rotated so that both the upper plate 2 and the counterweight block 3 are removed, and the collected water sample is poured out. Then, the upper plate 2 and the filter screen 211, the counterweight block 3, etc. are cleaned. After cleaning, they are reset for next use. In order to meet the filtering requirements during different sampling, the upper plate 2 containing the filter screen 211 of different pore sizes can be replaced and connected to the top of the sampling tube 1 for use.

Claims

1. A sampling device for preparing a standard solution for water quality testing with an impurity removal function, comprising a sampling tube (1), an upper plate (2) and a counterweight (3), Features: A first screw block (22) is fixed to the bottom of the upper plate (2), and the upper plate (2) is connected to the upper part of the sampling tube (1) by screwing the first screw block (22) into the upper part of the sampling tube (1); The surface of the upper plate (2) is provided with a through opening (21), a filter screen (211) is embedded and fixed in the opening (21), the surface of the counterweight block (3) is connected and fixed with a second screw block (31), the bottom of the sampling tube (1) is provided with a screw groove (11), and the counterweight block (3) is connected to the bottom of the sampling tube (1) by screwing the second screw block (31) into the screw groove (11).

2. A sampling device for preparing a water quality testing standard solution with impurity removal function according to claim 1, Features: Connecting rings (4) are welded and fixed to both upper and lower surfaces of the sampling tube (1), and connecting ropes (41) are connected to the connecting rings (4).

3. A sampling device for preparing a water quality testing standard solution with impurity removal function according to claim 2, Features: The ends of the connecting rope (41) are connected to the same lifting rope (411), and the diameter of the lifting rope (411) is greater than the diameter of the connecting rope (41).

4. A sampling device for preparing a water quality testing standard solution with impurity removal function according to claim 1, Features: The upper inner surface of the sampling tube (1) and the inner surface of the screw tube are both provided with internal threads, and the outer surface of the first screw block (22) and the outer surface of the second screw block (31) are both provided with external threads.

5. A sampling device for preparing a water quality testing standard solution with impurity removal function according to claim 4, Features: The dimensions of the internal thread are adapted to the dimensions of the external thread.

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