High-altitude anti-scaling heavy metal detection tube
By combining inner and outer tubes and using a PTFE modified coating, the problem of scaling in heavy metal detection tubes was solved, enabling efficient outdoor testing and reducing replacement and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN KAICHUNHONG ENVIRONMENTAL TESTING TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-26
Smart Images
Figure CN224286717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heavy metal detection tube technology, and in particular to a high-altitude anti-scaling heavy metal detection tube. Background Technology
[0002] A heavy metal detection tube is a tool used to detect the heavy metal content in water samples. It typically contains multiple test tubes, each containing a different reagent, which reacts with the heavy metal ions in the water sample to produce a visible color change, thereby quantitatively or qualitatively analyzing the heavy metal content in the water sample. The basic components and usage of a heavy metal detection tube are as follows: A heavy metal detection tube usually contains multiple test tubes, each containing a specific reagent. When using it, take a certain amount of the liquid to be tested and place it in the test tube according to the instructions, add the reaction reagent, and allow it to react fully. After the reaction is complete, compare the color with a standard color chart to find the color level that matches the hue of the liquid in the tube; this is the concentration of the parameter to be tested.
[0003] The existing technical solutions mentioned above have the following drawbacks: after prolonged use, scale will accumulate inside the existing detection tubes. When used outdoors, it is impossible to clean them in a timely manner, or there is no cleaning equipment to effectively clean them, resulting in unsatisfactory cleaning results, which will affect the efficiency of detection. Utility Model Content
[0004] The purpose of this invention is to provide a high-altitude anti-scaling heavy metal detection tube.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A high-altitude anti-scaling heavy metal detection tube includes an outer tube with external threads on its outer side and a limiting block fixedly connected to its inner side. An inner tube is inserted into the outer tube, with a limiting groove pre-reserved on its outer side and a stop block fixedly connected to its outer side. A locking cap is installed on the outer side of the outer tube, with internal threads on its inner side. The inner wall of the inner tube is covered with a PTFE modified coating.
[0007] By adopting the above technical solution, the original detection tube is increased to a combination of an inner tube and an outer tube. The inner tube comes into contact with the liquid to be tested. Once scale appears on the inner wall of the inner tube, the inner tube is replaced to ensure the efficiency of field testing. The inner tube can be cleaned and replaced later, which improves the efficiency of field testing. Directly discarding it is too wasteful and increases costs.
[0008] Furthermore, the inner tube is sleeved inside the outer tube and is slidably connected to the outer tube, and the stop block and the outer port of the outer tube are in contact with each other.
[0009] By adopting the above technical solution, the inner and outer pipes can be easily connected, installed, and used.
[0010] Furthermore, four limiting blocks and four limiting grooves are distributed in a ring at equal intervals. The limiting blocks are engaged inside the limiting grooves and are slidably connected to the limiting grooves.
[0011] By adopting the above technical solution and using the ring-shaped distribution structure, the stability of the inner tube being inserted into the outer tube can be improved.
[0012] Furthermore, the locking cap is sleeved on the outside of the outer tube and the inner tube, and the internal thread and the external thread are threaded together.
[0013] By adopting the above technical solution and adding a locking cap on the outside, it can be installed by threaded connection, which facilitates fixed installation.
[0014] In summary, the beneficial technical effects of this utility model are as follows:
[0015] It employs an inner tube and an outer tube, with an inner tube added inside the outer tube. Limiting blocks and limiting grooves are added between the inner and outer tubes for locking, which can improve the stability of the inner tube after installation. At the same time, a locking cap is added to the outside, which can directly lock and fix the outer and inner tubes. In addition, the inner tube has a modified coating to prevent internal scaling. Even if a small amount of scaling occurs, the inner tube can be directly replaced, resulting in convenient installation and use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the outer tube of this utility model;
[0019] Figure 4 This is a three-dimensional structural diagram of the locking cover of this utility model.
[0020] In the diagram, 1 is the outer tube; 2 is the external thread; 3 is the limiting block; 4 is the inner tube; 5 is the limiting groove; 6 is the stop block; 7 is the locking cap; 8 is the internal thread; and 9 is the PTFE modified coating. Detailed Implementation
[0021] The present invention will be further described in detail below with reference to the accompanying drawings.
[0022] Reference Figure 1-4The high-altitude anti-scaling heavy metal detection tube includes an outer tube 1, with an external thread 2 on the outer side of the outer tube 1, a limiting block 3 fixedly connected to the inner side of the outer tube 1, an inner tube 4 inserted into the outer tube 1, a limiting groove 5 reserved on the outer side of the inner tube 4, a stop block 6 fixedly connected to the outer side of the inner tube 4, a locking cap 7 installed on the outer side of the outer tube 1, an internal thread 8 on the inner side of the locking cap 7, and a PTFE modified coating 9 covering the inner wall of the inner tube 4. This design increases the original detection tube to a combination of the inner tube 4 and the outer tube 1. The inner tube 4 comes into contact with the liquid to be tested. If scale appears on the inner wall of the inner tube 4, it can be replaced to ensure the efficiency of field testing. Later, the inner tube 4 can be cleaned and replaced, further improving the efficiency of field testing.
[0023] like Figure 1-4 As shown, the inner tube 4 is sleeved inside the outer tube 1 and is slidably connected to the outer tube 1. The stop block 6 and the outer port of the outer tube 1 are in contact with each other. There are four limit blocks 3 and limit grooves 5 distributed in a ring at equal intervals. The limit block 3 is engaged inside the limit groove 5 and is slidably connected to the limit groove 5. The locking cover 7 is sleeved on the outside of the outer tube 1 and the inner tube 4. The internal thread 8 and the external thread 2 are threadedly connected.
[0024] The implementation principle of this embodiment is as follows: the limiting groove 5 on the outer side of the inner tube 4 is engaged with the limiting block 3 on the inner side of the outer tube 1, making the structure after the inner tube 4 is inserted more stable. At the same time, the locking cover 7 is installed on the outer side of the inner tube 4 and the outer tube 1, which can lock the outer side of the structure. If scale forms inside, the inner tube 4 can be directly replaced, which is convenient for outdoor testing and improves the efficiency of outdoor work.
[0025] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A high-altitude anti-scaling heavy metal detection tube, comprising an outer tube (1), characterized in that: The outer tube (1) is provided with an external thread (2) on its outer side, and a limiting block (3) is fixedly connected to the inner side of the outer tube (1). An inner tube (4) is inserted into the inner tube (1). A limiting groove (5) is reserved on the outer side of the inner tube (4). A stop block (6) is fixedly connected to the outer side of the inner tube (4). A locking cover (7) is installed on the outer side of the outer tube (1). An internal thread (8) is provided on the inner side of the locking cover (7). The inner wall of the inner tube (4) is covered with a PTFE modified coating (9).
2. The high-altitude anti-scaling heavy metal detection tube according to claim 1, characterized in that: The inner tube (4) is sleeved inside the outer tube (1) and is slidably connected to the outer tube (1). The stop block (6) and the outer port of the outer tube (1) are in contact with each other.
3. The high-altitude anti-scaling heavy metal detection tube according to claim 1, characterized in that: The limiting blocks (3) and limiting grooves (5) are distributed in a ring at equal intervals. The limiting blocks (3) are engaged inside the limiting grooves (5) and are slidably connected to the limiting grooves (5).
4. The high-altitude anti-scaling heavy metal detection tube according to claim 1, characterized in that: The locking cap (7) is sleeved on the outside of the outer tube (1) and the inner tube (4), and the internal thread (8) and the external thread (2) are threaded together.