Water quality curved sampling pipe

Abstract

The utility model discloses a water quality curved sampling tube which comprises an inverted U-shaped tube body, sampling ports are fixedly arranged at two ends of the inverted U-shaped tube body, the sampling ports are conical, floating balls are arranged in the sampling ports, and the diameter of the floating balls is slightly larger than that of outlets of the sampling ports. Filter screens are fixedly arranged on the inner walls of the connecting ends of the sampling ports and the inverted-U-shaped pipe body in a sealing manner, sealing assemblies are arranged at the outlet ends of the two sampling ports, a partition plate is arranged on the middle section of the inverted-U-shaped pipe body, and a short pipe corresponding to the partition plate is fixedly connected to the middle section of the inverted-U-shaped pipe body. According to the sampling device, sampling operation of two tubes of water samples can be carried out simultaneously, the water samples at target positions can be taken out, sampling can be carried out on different water sample layers at the target positions, the quantity of the taken-out samples is large, operation is convenient, the sampling device is not prone to slipping out of the hand, and observation is convenient when the sampling device is used.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality sampling, in particular to a water quality curved sampling tube. Background Art

[0002] For the detection of water quality, it is usually carried out by first sampling and then detecting. In actual operation, it often occurs that the liquid level height of the water body to be detected is significantly lower than the height that can be directly sampled by the staff by hand. This makes it often difficult or impossible to sample in the actual sampling process. At present, the sampling tube used in water quality detection has a relatively simple structure. When sampling, in order to reach the water layer to be sampled, the sampling container is often sealed, and then the sampling container is inserted into the sampling water layer and then opened to complete the sampling. This requires secondary operation by the operator and has a complex structure. At the same time, the sampling container uses an opening and closing method for sampling. Limited by the water layer thickness, the sampling container is often designed to be small, resulting in a small amount of sampled water; at the same time, the current sampling tubes are all set to be straight. When it is necessary to avoid errors for samples at different positions, only multiple samplings can be carried out.

[0003] Therefore, we propose a water quality curved sampling tube to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a water quality curved sampling tube is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A water quality curved sampling tube includes an inverted U-shaped tube body. Sampling ports are fixedly arranged at both ends of the inverted U-shaped tube body. The sampling ports are set in a conical cylinder shape. A floating ball is arranged in the sampling port. The diameter of the floating ball is slightly larger than the outlet of the sampling port. A filter screen is hermetically and fixedly arranged on the inner wall of the connection end of the sampling port and the inverted U-shaped tube body. Sealing components are arranged at the outlet ends of both sampling ports. A partition is arranged in the middle section of the inverted U-shaped tube body, and a short tube corresponding to the partition is fixedly connected to the middle section of the inverted U-shaped tube body.

[0007] Preferably, the inverted U-shaped tube body is made of a transparent material, and scale labels are arranged on the side walls at both ends of the inverted U-shaped tube body.

[0008] Preferably, both the sampling port and the floating ball are made of rubber material.

[0009] Preferably, the sealing component includes a sealing cover threadedly sleeved on the sampling port, and the sealing cover is fixedly connected to the inverted U-shaped tube body through a connecting rope.

[0010] Preferably, a manual control valve is fixedly arranged on the short tube.

[0011] Preferably, an arc-shaped thin handle is provided on the upper side of the inverted U-shaped tube body, and both ends of the arc-shaped thin handle are rotatably connected to the inverted U-shaped tube body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The sampling tube is set as an inverted U shape, and water quality sampling operations can be carried out at both ends. Water samples at two different positions can be taken synchronously to avoid errors conveniently; when the sampling tube is used for sampling, for ordinary sampling operations, only the sampling ports at both ends need to be extended into the sampling position. Due to the buoyancy effect, the floating ball will not block the sampling port, and the water sample enters the inverted U-shaped tube body. After sampling is completed and it is pulled upward, the gravity of the water sample that has entered the inverted U-shaped tube body acts on the floating ball, causing the floating ball to block the sampling port and sealing the water sample in the inverted U-shaped tube body; when taking water samples at specific positions, the manual control valve of the sealing short tube is closed. During the process of extending both ends into the sampling position, the internal gas prevents the water sample from entering the inverted U-shaped tube body. After reaching the sampling position, the manual control valve is opened, the internal gas is communicated with the outside, and the water sample can enter the tube body through the sampling port, thereby realizing sampling of the water layer at the target position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a cross-sectional structural schematic diagram of the present utility model.

[0015] In the figure:

[0016] 1 inverted U-shaped tube body, 2 sampling port, 3 floating ball, 4 filter screen, 5 sealing cover, 6 connecting rope, 7 partition board, 8 short tube, 9 manual control valve, 10 arc-shaped thin handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0018] Referring to Figure 1-2 a water quality sampling tube shown, including:

[0019] Inverted U-shaped tube body 1. In order to implement the sampling operation, sampling ports 2 are fixedly arranged at both ends of the inverted U-shaped tube body 1. Specifically, the sampling port 2 is set as a conical tube. A floating ball 3 is arranged inside the sampling port 2. The diameter of the floating ball 3 is slightly larger than the outlet of the sampling port 2. When the inverted U-shaped tube body 1 is inserted into the water sample, the floating ball 3 is lifted, and the water sample enters the inverted U-shaped tube body 1. When the inverted U-shaped tube body 1 is lifted out, due to the weight of the collected water sample and its own gravity, the floating ball 3 closes the sampling port 2. At the same time, in order to prevent the floating ball 3 from floating infinitely and detaching from the sampling port 2, a filter screen 4 is hermetically and fixedly arranged on the inner wall of the connection end between the sampling port 2 and the inverted U-shaped tube body 1. The filter screen 4 restricts the position of the floating ball 3, does not affect the entry of the water sample, and can filter the water sample to prevent debris from entering;

[0020] In some embodiments, it is necessary to further close the sampling port 2. For this purpose, closing components are arranged at the outlet ends of both sampling ports 2. The closing component includes a sealing cover 5 threadedly sleeved on the sampling port 2. The sealing cover 5 is fixedly connected to the inverted U-shaped tube body 1 through a connecting rope 6. The sealing cover 5 plays a closing role, and the connecting rope 6 prevents the sealing cover 5 from detaching;

[0021] In order to ensure the entry of the water sample into the inverted U-shaped tube body 1, it should be avoided that except for the sampling port 2, it is completely closed during sampling. For this purpose, a partition 7 is arranged in the middle section of the inverted U-shaped tube body 1. A short tube 8 corresponding to the partition 7 is fixedly connected to the middle section of the inverted U-shaped tube body 1. The short tube 8 communicates with the outside to enable the two sampling ports 2 to communicate with the outside, avoiding the water sample being unable to enter due to air pressure.

[0022] In some embodiments, the inverted U-shaped tube body 1 is made of a transparent material, and scale labels are arranged on the side walls at both ends of the inverted U-shaped tube body 1, which can facilitate the observation of the sampling situation.

[0023] At the same time, both the sampling port 2 and the floating ball 3 are made of rubber material. The inside of the floating ball 3 is hollow, and the rubber material helps to increase the sealing performance during sealing.

[0024] In some embodiments, in order to collect water samples from corresponding water layers, when the sampling port 2 has not reached the corresponding water layer, it should be avoided that the water sample enters the inverted U-shaped tube body 1. For this purpose, a manual control valve 9 is fixedly arranged on the short tube 8. When the manual control valve 9 is closed, when both sampling ports 2 are simultaneously immersed in the water sample, the inside of the inverted U-shaped tube body 1 is completely sealed, and the internal air will isolate the water sample to prevent the water sample from entering. After reaching the corresponding water layer, open the manual control valve 9, and the water sample can enter.

[0025] Some sampling positions are relatively low, such as mountain springs. It is impossible for the sampling personnel to reach into the water sample by hand. An arc-shaped thin handle 10 is arranged on the upper side of the inverted U-shaped tube body 1. Both ends of the arc-shaped thin handle 10 are rotatably connected to the inverted U-shaped tube body 1, which can further extend the inverted U-shaped tube body 1 downward. It can also be lowered by tying a rope to the arc-shaped thin handle 10 to adapt to complex situations.

[0026] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A water quality curved sampling tube, characterized in that: The invention comprises an inverted U-shaped tube body (1), wherein both ends of the inverted U-shaped tube body (1) are fixedly provided with sampling ports (2), wherein the sampling port (2) is arranged in a cone-shaped manner, wherein a floating ball (3) is arranged inside the sampling port (2), wherein the diameter of the floating ball (3) is slightly larger than the outlet of the sampling port (2), wherein a filter screen (4) is sealed and fixedly arranged on the inner wall of the connection end between the sampling port (2) and the inverted U-shaped tube body (1), wherein the outlet ends of the two sampling ports (2) are both provided with a sealing component, wherein a partition plate (7) is arranged in the middle section of the inverted U-shaped tube body (1), and a short tube (8) corresponding to the partition plate (7) is fixedly connected to the middle section of the inverted U-shaped tube body (1).

2. A water quality curved sampling tube according to claim 1, characterized in that: The inverted U-shaped tube body (1) is made of transparent material, and scale marks are provided on the side walls at both ends of the inverted U-shaped tube body (1).

3. A water quality curved sampling tube according to claim 1, characterized in that: The sampling port (2) and the floating ball (3) are both made of rubber.

4. A water quality curved sampling tube according to claim 1, characterized in that: The sealing component comprises a sealing cover (5) threadedly sleeved on the sampling port (2), and the sealing cover (5) is fixedly connected to the inverted U-shaped tube body (1) via a connecting rope (6).

5. A water quality curved sampling tube according to claim 1, characterized in that: A manual control valve (9) is fixedly arranged on the short pipe (8).

6. A water quality curved sampling tube according to claim 1, characterized in that: An arc-shaped thin handle (10) is arranged on the upper side of the inverted U-shaped tube body (1), and both ends of the arc-shaped thin handle (10) are rotatably connected to the inverted U-shaped tube body (1).

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