Portable multifunctional water supply sampling device
By designing a portable water sampling device, which utilizes corrugated pipe sealing and an opaque outer casing, the problems of low detection accuracy and reagent volatilization caused by open sampling are solved, achieving high-precision sampling and convenient portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, open-air water sampling methods cause water samples to come into contact with the environment, affecting the accuracy of test results. Furthermore, photosensitive agents are prone to volatilization or decomposition and are inconvenient to carry.
A portable, multifunctional water sampling device was designed. It uses a corrugated pipe for sealed sampling, combined with a sealing gasket, a drain pipe, and an opaque outer cover to ensure the sealing and light protection of the sampling process. It is also easy to carry with a lifting strap.
It improves the accuracy of water supply sampling results, avoids the decomposition or volatilization of photosensitive agents, and facilitates the carrying and handling of multiple samples.
Smart Images

Figure CN224095438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply sampling technology, specifically to a portable multifunctional water supply sampling device. Background Technology
[0002] Water supply sampling refers to sampling residential drinking water for water quality monitoring and control. There are multiple sampling points, such as water sources, different stages of the treatment process, disinfection points, and user terminals. User-side sampling provides direct information on the quality of the water used by the user.
[0003] Currently, user-end sampling mostly uses glass or plastic sampling bottles. During sampling, the bottle opening is opened and aligned with the user's water tap, and the tap is turned on for direct sampling. This open sampling method allows the water to absorb a certain amount of air from the environment. If the user's home has fragrances or other items with strong odors, it will cause a small amount of other substances to dissolve in the water. This open sampling method also allows gases in the water to escape into the environment. If chlorine or ozone is used for disinfection, some of the remaining chlorine or ozone in the water will escape into the air, resulting in the chlorine or ozone content in the sampled water being lower than the actual content at the user's end. There is a certain difference between the collected sample and the water quality in the user's pipeline, which affects the accuracy of the final test results. Utility Model Content
[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0005] A portable multifunctional water sampling device includes a sampling bottle, a bottle cap is threadedly connected to the top of the sampling bottle, a cap sleeve is fixedly installed at the middle of the top of the bottle cap, a corrugated tube is installed on the bottle cap inside the cap sleeve, the bottom of the corrugated tube passes through the bottle cap and extends into the sampling bottle, and a tube cap is threadedly connected to the top of the cap sleeve.
[0006] Furthermore, a sealing gasket is installed inside the bottle cap at the top opening of the sampling bottle, and a sealing gasket is installed inside the tube cap at the top opening of the cap sleeve. These sealing gaskets ensure that the bottle cap and tube cap do not leak after being screwed on, thus ensuring a tight seal.
[0007] Furthermore, a lower passage pipe is fixedly installed at the bottom outer side of the sampling bottle. A drain pipe is fixedly connected to the lower passage pipe at the bottom of the sampling bottle. A threaded block is fixedly installed at the bottom of the lower passage pipe, and a threaded rod is threadedly connected to the threaded block. The top part of the threaded rod extends into the lower passage pipe, and a sealing plug is installed on the threaded rod inside the lower passage pipe. The sealing plug abuts against the inner wall of the lower passage pipe to form a seal. A knob is fixedly installed at the end of the threaded rod below the lower passage pipe. Water enters through the upper corrugated pipe and drains through the lower drain pipe. This inlet-outlet configuration can use some of the sampling water to carry away the air inside the sampling bottle while preventing external air from entering.
[0008] Furthermore, the lower through pipe is set vertically, and the drain pipe is set at a downward slope. The diameter of the lower through pipe is smaller than the diameter of the corrugated pipe. The drainage volume of the drain pipe must always be less than the inflow volume at the corrugated pipe position to ensure effective sampling. The downward slope of the drain pipe allows water to be discharged downwards.
[0009] Furthermore, an outer sleeve (Type 1) is installed on the outside of the sampling bottle, and an outer sleeve (Type 2) is installed on the outside of the outer sleeve (Type 1). The outer sleeve (Type 1) is an arc-shaped structure with a circumference of half that of the sampling bottle, and the outer sleeve (Type 2) is an arc-shaped structure with a circumference of half that of the outer sleeve. Multiple limiting grooves are pre-set on the outer wall of the outer sleeve (Type 1), and limiting strips are fixedly installed on the inner wall of the outer sleeve (Type 2) corresponding to the positions of the limiting grooves. The limiting strips abut against the limiting grooves, allowing the outer sleeve (Type 2) to rotate. The outer sleeves (Type 1 and Type 2) can protect the sampling bottle, especially glass sampling bottles, reducing the possibility of collision breakage. To prevent the outer sleeve (Type 2) from rotating freely, the limiting strips can be made of rubber, utilizing the frictional resistance of the rubber within the limiting grooves to constrain and limit its movement.
[0010] Furthermore, a base plate is fixedly installed at the bottom of the outer sleeve one below the knob, and a base plate two is fixedly installed at the bottom of the outer sleeve two below the base plate one. A support ring is fixedly installed on the inner side of the outer sleeve one corresponding to the bottom of the sampling bottle. The sampling bottle is supported by the support ring. The outer sleeve one, outer sleeve two, base plate one, base plate two, bottle cap, cap sleeve, and tube cap are all designed to be opaque. The opaque design provides light protection for the sampling bottle to prevent the volatilization or decomposition of residual photosensitive agents in the water.
[0011] Furthermore, two hooks are fixedly installed on the outer side of the second outer tube near the top position, and a lifting strap is installed between the two hooks. The lifting strap further facilitates carrying, especially when multiple sampling bottles need to be carried at once, allowing a single person to carry a larger number of sampling bottles at once.
[0012] Furthermore, the outer wall of the sampling bottle is pre-marked with scale lines indicating the volume. This facilitates observation of the sampled water volume. Alternatively, these lines can be placed on either the outer sleeve or the second outer sleeve to visually indicate the amount of water inside the sampling bottle.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model incorporates a corrugated tube on the cap of the sampling bottle. During sampling, the corrugated tube is fitted onto the faucet, thereby reducing the contact between the water flowing from the faucet and the ambient air. This reduces the dissolution of components in the ambient air into the water, ensuring the accuracy of the final test results. At the same time, the sampling bottle is convenient to carry and use.
[0015] 2. In this utility model, by setting a drain pipe at the bottom of the sampling bottle, the drain pipe can be opened during sampling to collect samples while simultaneously draining a small amount of water. This draining removes air from the bottle, further preventing ambient air components from dissolving into the sampled water.
[0016] 3. The present invention is equipped with a lifting strap, which allows a single person to carry a larger number of sampling bottles at one time, making it more convenient to carry.
[0017] 4. In this utility model, by setting an outer sleeve one and an openable outer sleeve two, combined with an opaque base plate one, a base plate two, a bottle cap, a cap sleeve and a tube cap, the sampling bottle can be protected from light, thereby preventing the volatilization or decomposition of residual photosensitive agents in the sampled water. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This is an enlarged view of point A in this utility model;
[0021] Figure 4 This is an enlarged view of point B in this utility model;
[0022] Figure 5 This is a schematic diagram of the opening of the outer sleeve 2 in this utility model;
[0023] Figure 6 This is a schematic diagram showing the arrangement of outer sleeve one and outer sleeve two in this utility model.
[0024] Attached reference numerals: 1. Sampling bottle; 2. Bottle cap; 3. Corrugated tube; 4. Cap sleeve; 5. Tube cap; 6. Scale line; 7. Lower through pipe; 8. Drain pipe; 9. Sealing plug; 10. Threaded rod; 11. Threaded block; 12. Knob; 13. Hanging lug; 14. Lifting strap; 15. Sealing gasket one; 16. Sealing gasket two; 17. Outer sleeve one; 18. Outer sleeve two; 19. Base plate one; 20. Base plate two; 21. Limiting groove; 22. Limiting strip; 23. Support ring. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0026] This application provides a portable, multifunctional water sampling device, mainly addressing the problem that the water quality of samples collected using current open methods differs from that in the user's pipeline, affecting the accuracy of the final test results. The following technical solution is provided, which will be discussed in conjunction with... Figure 1 - Figure 6 Please provide a detailed explanation:
[0027] A portable multifunctional water sampling device includes a sampling bottle 1, which is made of glass or plastic and is additive-free to avoid contaminating the sample composition. A bottle cap 2 is threadedly connected to the top of the sampling bottle 1. A cap sleeve 4 is fixedly installed at the middle of the top of the bottle cap 2. A corrugated tube 3 is installed on the bottle cap 2 inside the cap sleeve 4. The corrugated tube 3 is made of silicone and extends through the bottle cap 2 into the sampling bottle 1. A tube cap 5 is threadedly connected to the top of the cap sleeve 4.
[0028] To use, unscrew and remove the tube cap 5, pull out the corrugated tube 3, and attach it to the faucet at the user's end. Utilizing the soft properties of silicone, pinch the corrugated tube 3 to tightly wrap around the faucet. You can clean the faucet exterior first to avoid surface dirt contaminating the sample. After cleaning, wipe off any water stains before use. After attaching the corrugated tube 3, turn on the faucet to let water flow into the sampling bottle 1 through the corrugated tube 3. At this time, support the sampling bottle 1 and release the corrugated tube 3. As the water enters the sampling bottle 1, the increased volume will displace the air inside the sampling bottle 1 and rush out through the gap between the corrugated tube 3 and the faucet. The water does not come into contact with the ambient air when it flows out, and at the same time, the air in the sampling bottle 1 rushes out to prevent ambient air from entering. This avoids the water absorbing and dissolving some components from the environment or some components in the water, such as gases, escaping when it flows out. After sampling, insert the corrugated tube 3 into the cap sleeve 4, and then tighten the tube cap 5. When taking out the sample for testing, simply open the bottle cap 2 and pour it out.
[0029] In some embodiments, a sealing gasket 15 is installed inside the bottle cap 2 at the top opening of the sampling bottle 1, and a sealing gasket 26 is installed inside the tube cap 5 at the top opening of the cap tube 4.
[0030] Sealing gasket 15 and sealing gasket 26 are used to increase the sealing of bottle cap 2 and tube cap 5 after they are tightened, so as to prevent the sample water in sampling bottle 1 from leaking out through tiny gaps.
[0031] In some embodiments, a lower tube 7 is fixedly installed at the outer side of the bottom of the sampling bottle 1. The diameter of the lower tube 7 is smaller than the diameter of the corrugated pipe 3. The lower tube 7 is vertically arranged. A drain pipe 8 is fixedly connected to the lower tube 7 at the bottom of the sampling bottle 1. The drain pipe 8 is inclined downwards. A threaded block 11 is fixedly installed at the bottom of the lower tube 7. A threaded rod 10 is threadedly connected to the threaded block 11. The top part of the threaded rod 10 extends into the lower tube 7. A sealing plug 9 is installed on the threaded rod 10 inside the lower tube 7. The sealing plug 9 abuts against the inner wall of the lower tube 7 to form a seal. A knob 12 with anti-slip texture is fixedly installed at the end of the threaded rod 10 below the lower tube 7.
[0032] During sampling, after the corrugated tube 3 is fitted onto the faucet, turn the knob 12. Through the threaded connection between the threaded rod 10 and the threaded block 11, pull the sealing plug 9 down, moving it below the connection position between the drain pipe 8 and the lower connecting pipe 7, so that the lower connecting pipe 7 is connected to the drain pipe 8. At this time, turn on the faucet to let the water flow down. After the water flows down, part of it is discharged through the drain pipe 8, and part of it remains in the sampling bottle 1. At this time, the corrugated tube 3 can be continuously squeezed, and the air in the sampling bottle 1 is continuously discharged through the drain pipe 8, making room for sampling and filling with water. When the sampling is full, turn the knob 12 in the opposite direction, so that the threaded rod 10 pushes the sealing plug 9 to block the connection position between the drain pipe 8 and the lower connecting pipe 7, thus sealing it. Then turn off the faucet. The air in the sampling bottle 1 is discharged with the water flow from the sampling bottle 1, making it more difficult for air in the environment to enter the sampling bottle 1.
[0033] In some embodiments, an outer tube 17 is installed on the outside of the sampling bottle 1, and an outer tube 28 is installed on the outside of the outer tube 17. The outer tube 17 is an arc-shaped structure with half the circumference of the sampling bottle 1, and the outer tube 28 is an arc-shaped structure with half the circumference of the outer tube 17. The outer wall of the outer tube 17 has multiple limiting grooves 21. The inner wall of the outer tube 28 is fixedly installed with a limiting slide bar 22 corresponding to the position of the limiting groove 21. The limiting slide bar 22 abuts against the limiting groove 21 to form a rotatable installation of the outer tube 28.
[0034] A base plate 19 is fixedly installed at the bottom of the outer tube 17 below the knob 12. A base plate 20 is fixedly installed at the bottom of the outer tube 2 18 below the base plate 19. The base plate 20 and the base plate 19 overlap. The outer tube 17 and the outer tube 2 18 overlap. A support ring 23 is fixedly installed on the inner side of the outer tube 17 corresponding to the bottom position of the sampling bottle 1. The sampling bottle 1 is placed and supported by the support ring 23. Alternatively, the sampling bottle 1 can be directly and completely fixed to the outer tube 17. The outer tube 17, the outer tube 2 18, the base plate 19, the base plate 2 20, the bottle cap 2, the cap sleeve 4, and the tube cap 5 are all designed to be opaque.
[0035] Water plants use photosensitive agents to remove harmful substances such as nitrates, nitrites, and chlorine disinfection byproducts from the water. If trace amounts of photosensitive agents remain after purification, they will persist in the water due to the light-blocking effect of subsequent pipelines. During sampling, if no light-blocking treatment is taken, the photosensitive agents in the water will decompose or volatilize when exposed to light after the water is released from the tap. By using the opaque outer tube 17, outer tube 28, base plate 19, base plate 20, bottle cap 2, cap sleeve 4, and tube cap 5, the sampling bottle 1 can be fully protected from light during sampling to prevent ambient light from causing the decomposition or volatilization of residual photosensitive agents in the water. Note that the drain pipe 8 is not used at this time, so outer tube 218 is not opened.
[0036] In some embodiments, two hooks 13 are fixedly installed on the outer side of the outer tube 2 18 near the top position, and a lifting strap 14 is installed between the two hooks 13.
[0037] When carrying, it can be carried by the lifting strap 14, without having to hold the sampling bottle 1 with your hand at all times, which further facilitates carrying.
[0038] In some embodiments, the outer wall of the sampling bottle 1 is pre-set with a scale line 6 indicating the volume. The scale line 6 makes it easy to see how much water has been sampled. Since the scale line 6 is on the sampling bottle 1, the sampling bottle 1 needs to be protected from light. When it is blocked by the outer tube 2 18, it may not be visible to the naked eye. In this case, the outer tube 2 18 can be made of a transparent dark brown material that also has the effect of blocking light and allows light to pass through, such as glass or plastic.
[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A portable multifunctional water sampling device, comprising a sampling bottle (1), characterized in that, The top of the sampling bottle (1) is threaded with a bottle cap (2), and a cap sleeve (4) is fixedly installed in the middle of the top of the bottle cap (2). A corrugated tube (3) is installed on the bottle cap (2) inside the cap sleeve (4). The bottom of the corrugated tube (3) passes through the bottle cap (2) and extends into the sampling bottle (1). A tube cap (5) is threaded at the top of the cap sleeve (4).
2. The portable multifunctional water sampling device according to claim 1, characterized in that, A sealing gasket 1 (15) is installed inside the bottle cap (2) at the top opening of the sampling bottle (1), and a sealing gasket 2 (16) is installed inside the tube cap (5) at the top opening of the cap sleeve (4).
3. The portable multifunctional water sampling device according to claim 1, characterized in that, A lower tube (7) is fixedly installed on the outer side of the bottom of the sampling bottle (1). A drain pipe (8) is fixedly connected to the lower tube (7) at the bottom of the sampling bottle (1). A threaded block (11) is fixedly installed at the bottom of the lower tube (7). A threaded rod (10) is threadedly connected to the threaded block (11). The top part of the threaded rod (10) extends into the lower tube (7). A sealing plug (9) is installed on the threaded rod (10) inside the lower tube (7). The sealing plug (9) abuts against the inner wall of the lower tube (7) to form a seal. A knob (12) is fixedly installed at the end of the threaded rod (10) below the lower tube (7).
4. A portable multifunctional water sampling device according to claim 3, characterized in that, The lower pipe (7) is set vertically, and the drain pipe (8) is set at an angle downward. The diameter of the lower pipe (7) is smaller than the diameter of the corrugated pipe (3).
5. A portable multifunctional water sampling device according to claim 3, characterized in that, The sampling bottle (1) is equipped with an outer tube 1 (17) on the outside and an outer tube 2 (18) on the outside. The outer tube 1 (17) is an arc-shaped structure with half the circumference of the sampling bottle (1) and the outer tube 2 (18) is an arc-shaped structure with half the circumference of the outer tube 1 (17). The outer wall of the outer tube 1 (17) has multiple limiting grooves (21) pre-set. The inner wall of the outer tube 2 (18) is fixedly installed with a limiting slide bar (22) corresponding to the position of the limiting groove (21). The limiting slide bar (22) abuts against the limiting groove (21) to form the rotational movement of the outer tube 2 (18).
6. A portable multifunctional water sampling device according to claim 5, characterized in that, The bottom of the outer tube 1 (17) below the knob (12) is fixedly installed with a base plate 1 (19), and the bottom of the outer tube 2 (18) below the base plate 1 (19) is fixedly installed with a base plate 2 (20). A support ring (23) is fixedly installed on the inner side of the outer tube 1 (17) corresponding to the bottom position of the sampling bottle (1). The sampling bottle (1) is placed and supported by the support ring (23). The outer tube 1 (17), outer tube 2 (18), base plate 1 (19), base plate 2 (20), bottle cap (2), cap sleeve (4) and tube cap (5) are all set to be opaque.
7. A portable multifunctional water sampling device according to claim 5, characterized in that, Two hanging ears (13) are fixedly installed on the outer side of the second outer tube (18) near the top position, and a lifting strap (14) is installed between the two hanging ears (13).
8. A portable multifunctional water sampling device according to claim 1, characterized in that, The outer wall of the sampling bottle (1) is pre-set with a scale line (6) indicating the capacity.