Sample storage tube for water quality test

Abstract

The utility model relates to the technical field of water quality detection, in particular to a sample storage tube for water quality detection, which comprises a storage tube body, an observation window is arranged on the side portion of the storage tube body, a sampling upper cover mechanism is arranged above the storage tube body, and the sampling upper cover mechanism comprises a cover body in threaded connection with the storage tube body. An arc-shaped sliding groove is formed in the upper surface of the cover body, a connecting hole is formed in the bottom of the arc-shaped sliding groove, the connecting hole communicates with the storage pipe body, an arc-shaped sliding block is slidably installed in the arc-shaped sliding groove, a connecting opening is integrally formed in the arc-shaped sliding block, and the connecting opening communicates with the connecting hole. After the storage tube body and the cover body are sealed, a closed environment can be formed, the interior of the tube is vacuumized to generate negative pressure for sampling, no extra collection equipment needs to be carried, and the side part of the storage tube body is connected with the arc-shaped shading plate capable of sliding for shading, so that a water sample in the tube is prevented from photolysis.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a sample storage tube for water quality testing. Background Technology

[0002] Water is the source of life, and humans cannot live or produce without it. The quality of drinking water is closely related to human health. With socio-economic development, scientific progress, and the improvement of people's living standards, people's requirements for drinking water quality are constantly increasing, and drinking water quality standards are also constantly developing and improving, requiring regular water quality testing.

[0003] In water quality testing, water samples are typically collected using water sampling equipment and stored in test tubes or other containers before being taken back to the research institute for testing. However, current water sampling equipment is bulky and heavy, making it difficult to carry when traveling to remote locations or hiking. It is also inconvenient to carry test tube storage boxes to store the test tubes. Some water samples need to be stored in the dark, otherwise some chemical substances in the water will undergo photodecomposition. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a sealed environment can be formed between the storage tube body and the cap. Sampling is carried out by creating negative pressure by evacuating the tube, eliminating the need for additional collection equipment. Furthermore, a sliding arc-shaped light-shielding plate is connected to the side of the storage tube body to block light and prevent photodecomposition of the water sample inside the tube. This utility model proposes a sample storage tube for water quality testing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a sample storage tube for water quality testing, including a storage tube body, an observation window is provided on the side of the storage tube body, a colorless transparent acrylic plate is installed inside the observation window, and an arc-shaped light shield is slidably installed on the outer surface of the observation window, and a sampling cover mechanism is provided above the storage tube body.

[0006] The sampling cover mechanism includes a cover body that is threadedly connected to the storage tube body. The upper surface of the cover body is provided with an arc-shaped groove, and the bottom of the arc-shaped groove is provided with a connecting hole, which is connected to the storage tube body. An arc-shaped slider is slidably installed inside the arc-shaped groove, and a connecting port is integrally formed on the arc-shaped slider, which is connected to the connecting hole.

[0007] Preferably, the opening of the storage tube body is provided with an internal thread, and the lower part of the cover is integrally formed with an external thread, and the opening of the storage tube body is integrally formed with a support surface on which a rubber sealing gasket is installed.

[0008] Preferably, the observation window has a receiving groove on its side, and the arc-shaped light shield is inserted into the receiving groove, and the outer side of the arc-shaped light shield has an integrally formed push-pull part.

[0009] Preferably, a ball-head plunger is installed at the bottom of the observation window, and a positioning hole is correspondingly provided at the lower part of the push-pull part.

[0010] Preferably, the arc-shaped slide groove is provided with side grooves on both sides, and the arc-shaped slider is integrally formed with side blocks on both sides, and the side blocks are inserted into the side grooves.

[0011] Preferably, a limiting plate is bonded to the surface of the cover, and two sets of the limiting plate are provided, with the limiting plate pressing against the upper surface of the arc-shaped slider.

[0012] Preferably, the side of the cover, the upper surface of the arc-shaped slider, and the outer side of the connection port are all provided with anti-slip textures, and an LDPE barrier film is installed on the inner side of the connection port.

[0013] Preferably, the bottom of the storage tube body is integrally formed with a placement part, and the placement part is provided with a counterweight, and the bottom of the placement part is installed with an anti-slip pad.

[0014] The advantages of this utility model are:

[0015] 1. The arc-shaped slider of this utility model can slide inside the arc-shaped groove. When sampling, the arc-shaped slider is pushed to the middle of the arc-shaped groove, and then the connection port and the connection hole will be connected. The negative pressure environment inside the storage tube body will extract the water sample from the water body, realizing the sampling process. The sampling process is fast, requires no electricity, has low learning cost, and the structure of the storage tube body and its upper sampling cover mechanism is simple, low cost, and the weight of each component is also small, which makes it convenient for the sampler to carry it to remote places for sampling.

[0016] 2. The surfaces of the arc-shaped sliding groove, arc-shaped slider, side groove, and side block of this utility model are all coated with waterproof sealing paint to seal the gaps in the sampling cover mechanism and the gaps between the components, preventing air leakage. In addition, an LDPE barrier film is installed on the inside of the connection port. The LDPE barrier film can be easily punctured, and the LDPE barrier film plays a role in sealing the connection port, further slowing down the progress of air leakage.

[0017] 3. The observation window of this utility model is equipped with a colorless transparent acrylic plate. During and before sampling, the progress of water sample acquisition can be observed through the observation window. After sampling is completed, the arc-shaped light shield can be covered by pushing the push-pull part to the left to prevent sunlight from shining on the water sample in the storage tube, thereby preventing some components in the water from photodecomposing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the storage tube body of this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified view of part A in the middle;

[0022] Figure 4 This is a schematic diagram of the sampling cover mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the arc-shaped slider of this utility model.

[0024] In the diagram: 1. Storage tube body; 2. Sampling cover mechanism; 101. Observation window; 102. Arc-shaped light shield; 103. Rubber sealing gasket; 104. Receiving groove; 105. Push-pull part; 106. Ball head plunger; 107. Placement part; 201. Cover body; 202. Arc-shaped slide groove; 203. Connection hole; 204. Arc-shaped slider; 205. Connection port; 206. Side groove; 207. Side block; 208. Limiting plate; 209. LDPE barrier film. Detailed Implementation

[0025] 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 scope of protection of the present utility model.

[0026] The following is in conjunction with the appendix Figure 1-5 This application provides further details:

[0027] This application discloses a sample storage tube for water quality testing. (Refer to...) Figure 1The storage tube body 1 includes a placement part 107 integrally formed at the bottom of the storage tube body 1. The placement part 107 is equipped with a counterweight inside, which can lower the center of gravity. The bottom of the placement part 107 is also equipped with an anti-slip pad. Compared with ordinary test tubes with a hemispherical bottom, the storage tube body 1 can be placed directly on the table or the ground.

[0028] Reference Figure 1 A sampling cover mechanism 2 is provided above the storage tube body 1. The sampling cover mechanism 2 includes a cover 201. Both the storage tube body 1 and the cover 201 are made of high-density polyethylene plastic. The storage tube body 1 is about 12mm thick and is hard, and can withstand the pressure generated by atmospheric pressure after vacuuming.

[0029] Reference Figure 1 The storage tube body 1 has an internal thread at the opening, and the lower part of the cover 201 has an external thread integrally formed. The storage tube body 1 has a support surface integrally formed at the opening with a rubber sealing gasket 103 installed on it. After the storage tube body 1 and the cover 201 are tightened, the gap between them can be sealed with the rubber sealing gasket 103.

[0030] Reference Figure 1 and Figure 2 An observation window 101 is provided on the side of the storage tube body 1. A colorless transparent acrylic plate is installed inside the observation window 101. The progress of obtaining the water sample can be observed through the observation window 101 during and before sampling.

[0031] Reference Figure 1 and Figure 3 An arc-shaped light shield 102 is slidably installed on the outer surface of the observation window 101. A receiving groove 104 is provided on the side of the observation window 101, and the arc-shaped light shield 102 is inserted into the receiving groove 104. A push-pull part 105 is integrally formed on the outer side of the arc-shaped light shield 102. A ball-head plunger 106 is installed at the bottom of the observation window 101, and a positioning hole is correspondingly provided at the lower part of the push-pull part 105. After sampling is completed, the arc-shaped light shield 102 covers the entire observation window 101 by pushing the push-pull part 105 to the left, preventing sunlight from shining on the water sample in the storage tube body 1 and preventing some components in the water from photodecomposing. The ball-head plunger 106 can cooperate to hold the arc-shaped light shield 102 in place, reducing the misalignment of the arc-shaped light shield 102 due to bumps.

[0032] Reference Figure 1 and Figure 4The upper surface of the cover 201 is provided with an arc-shaped sliding groove 202, and side grooves 206 are provided on both sides of the arc-shaped sliding groove 202. Side blocks 207 are integrally formed on both sides of the arc-shaped slider 204. The side blocks 207 are inserted into the inside of the side grooves 206. The surfaces of the arc-shaped sliding groove 202, the arc-shaped slider 204, the side grooves 206 and the side blocks 207 are all provided with waterproof sealing coating to seal the gaps in the sampling cover mechanism 2 and the gaps between the components to prevent air leakage.

[0033] Reference Figure 1 , Figure 4 and Figure 5 The bottom of the arc-shaped slide groove 202 is provided with a connection hole 203, which is connected to the storage tube body 1. The arc-shaped slider 204 is integrally formed with a connection port 205, which is connected to the connection hole 203. The arc-shaped slider 204 can slide in the arc-shaped slide groove 202 to cut off or connect the connection with the connection hole 203.

[0034] Reference Figure 4 A limiting plate 208 is bonded to the surface of the cover 201, and two sets of limiting plates 208 are provided. The limiting plate 208 presses on the upper surface of the arc-shaped slider 204. The limiting plate 208 can further press the connection between the arc-shaped slider 204 and the arc-shaped groove 202, further delaying the progress of air leakage.

[0035] Reference Figure 1 and Figure 5 The sides of the cover 201, the upper surface of the arc-shaped slider 204, and the outer side of the connection port 205 are all provided with anti-slip textures. The anti-slip textures on the sides of the cover 201 and the upper surface of the arc-shaped slider 204 facilitate their rotation. The anti-slip textures on the outer side of the connection port 205 increase the resistance to the connection with the external hose, thus preventing it from falling off. In addition, an LDPE barrier film 209 is installed on the inner side of the connection port 205. The LDPE barrier film 209 can be easily punctured, and the LDPE barrier film 209 seals the connection port 205.

[0036] Working Principle: This storage tube can be easily carried to remote or inaccessible sampling points. In actual use, first ensure the curved slider 204 is in close contact with the side of the curved groove 202, at which point the connection hole 203 and connection port 205 are sealed. Then, puncture the LDPE barrier film 209 inside the connection port 205, and connect the rubber hose to the connection port 205. Insert one end of the rubber hose into the water to be sampled, extending the hose end to the predetermined sampling depth. Then, rotate the curved slider. 204 is moved to the middle of the arc-shaped slide 202. At this time, the connecting hole 203 and the connecting port 205 are in a connected state. Water sample extraction begins. The sampling progress is observed through the observation window 101. After sampling is completed, the arc-shaped slider 204 is pushed to the edge of the arc-shaped slide 202 to achieve a seal. Then, by pushing the push-pull part 105 to the left, the arc-shaped light shield 102 covers the entire observation window 101 to prevent sunlight from shining on the water sample in the storage tube body 1 and to prevent some components in the water from photodecomposing. Finally, the storage tube is moved to the laboratory, the cover 201 is removed, and the water sample is poured out for testing.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sample storage tube for water quality testing, characterized in that: The storage tube body (1) includes an observation window (101) on the side of the storage tube body (1), a colorless transparent acrylic plate is installed inside the observation window (101), and an arc-shaped light shield (102) is slidably installed on the outer surface of the observation window (101). A sampling cover mechanism (2) is provided above the storage tube body (1). The sampling cover mechanism (2) includes a cover (201) threadedly connected to the storage tube body (1). The upper surface of the cover (201) is provided with an arc-shaped groove (202). The bottom of the arc-shaped groove (202) is provided with a connecting hole (203), and the connecting hole (203) is connected to the storage tube body (1). An arc-shaped slider (204) is slidably installed inside the arc-shaped groove (202). A connecting port (205) is integrally formed on the arc-shaped slider (204), and the connecting port (205) is connected to the connecting hole (203).

2. The water quality testing sample storage tube according to claim 1, characterized in that: The storage tube body (1) has an internal thread at the opening, and the lower part of the cover (201) has an external thread integrally formed. The storage tube body (1) has a support surface with a rubber sealing gasket (103) integrally formed at the opening.

3. The water quality testing sample storage tube according to claim 1, characterized in that: The observation window (101) has a receiving groove (104) on its side, and the arc-shaped light shield (102) is inserted into the receiving groove (104), and the outer side of the arc-shaped light shield (102) has an integrally formed push-pull part (105).

4. A sample storage tube for water quality testing according to claim 3, characterized in that: A ball-head plunger (106) is installed at the bottom of the observation window (101), and a positioning hole is correspondingly provided at the lower part of the push-pull part (105).

5. A sample storage tube for water quality testing according to claim 1, characterized in that: The arc-shaped slide groove (202) is also provided with side grooves (206) on both sides, and the arc-shaped slider (204) is integrally formed with side blocks (207) on both sides, and the side blocks (207) are inserted into the inside of the side grooves (206).

6. A sample storage tube for water quality testing according to claim 1, characterized in that: The surface of the cover (201) is bonded with a limiting plate (208), and two sets of the limiting plate (208) are provided. The limiting plate (208) presses against the upper surface of the arc-shaped slider (204).

7. A sample storage tube for water quality testing according to claim 6, characterized in that: The side of the cover (201), the upper surface of the arc-shaped slider (204) and the outer side of the connector (205) are all provided with anti-slip textures, and an LDPE barrier film (209) is installed on the inner side of the connector (205).

8. A sample storage tube for water quality testing according to claim 1, characterized in that: The storage tube body (1) has an integrally formed placement part (107) at the bottom, and the placement part (107) is provided with a counterweight inside, and the bottom of the placement part (107) is equipped with an anti-slip pad.

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