Drinking water pH value detection sampling device
By designing a drinking water pH value detection sampling device, and utilizing a combination of a rotating locking rod and a syringe, the contamination problem caused by the sharing of traditional sampling tools is solved, achieving pollution-free and accurate drinking water sampling and sample storage, which is suitable for laboratory testing.
Patent Information
- Application Number
- CN202423312808.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In traditional drinking water sampling, the use of the same sampling tool can lead to sample contamination, affecting the accuracy of testing. Furthermore, the handling of storage containers can easily result in hand contact and contamination.
A sampling device for detecting pH value in drinking water was designed, comprising a sampling container, a sealing cap, and a rotating locking rod. The container can be quickly opened and sealed by rotating the locking rod, and sampling is performed in conjunction with a push-pull syringe to avoid contact between the sample and the outside.
It enables pollution-free and accurate drinking water sampling, prevents sample mixing, ensures sample purity, and facilitates laboratory testing.
Smart Images
Figure CN223841542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drinking water testing technology, and in particular to a sampling device for detecting the pH value of drinking water. Background Technology
[0002] The pH value of drinking water for healthy people should be controlled within a certain range to ensure its safety and suitability. According to national standards and human health needs, the pH value of drinking water should be between 6.5 and 8.5. When relevant departments test the pH value of drinking water, they need to use containers to sample, store, and transport the drinking water, and finally test the pH value of the samples using specialized laboratory equipment.
[0003] In the traditional drinking water sampling process, the sample is injected into the container using a sampling tool. For batch testing of drinking water, in order to reduce the workload and cost, the same sampling tool is used for sampling different drinking water samples. This can contaminate the sample and affect the accuracy of the test. In addition, the sample storage container is easy to come into contact with the operator's hands during opening and closing, which can cause contamination of the sample or container. Utility Model Content
[0004] This disclosure relates to a drinking water pH value detection sampling device to address the problem that in traditional drinking water sampling, samples are injected into containers using sampling tools. For batch testing of drinking water, in order to reduce the workload and cost, the same sampling tool is used for sampling different drinking water samples, which can contaminate the samples and affect the detection accuracy. Furthermore, the sample storage container is easily touched by the operator's hands during opening and closing, causing contamination of the sample or container.
[0005] In a first aspect, this disclosure provides a sampling device for detecting the pH value of drinking water, specifically comprising: a sampling container, a sealing cap tightly fastened to the upper end of the sampling container, a sampling hole opened at the bottom of the sampling container, a first sealing sleeve fixedly connected above the sampling hole, a first sleeve opening opened on the wall of the first sealing sleeve, a rotating locking rod tightly slidably connected to the sampling hole, the rotating locking rod being coaxial with the sampling container, an air vent opened in the middle of the sealing cap, a second sealing sleeve fixedly connected below the air vent, a second sleeve opening opened on the wall of the second sealing sleeve, the rotating locking rod tightly slidably connected to the air vent, an upper port and a lower port opened at the upper and lower ends respectively, an upper opening opened on the side of the upper port, and a lower opening opened on the side of the lower port.
[0006] In at least some embodiments, the lower surface of the sampling container is provided with a settling port, which is located at the lower end of the sampling hole. The settling port is coaxial with the sampling hole, and the sampling hole is connected to the settling port.
[0007] In at least some embodiments, the inner wall of the outer edge of the sealing cap is in close contact with the outer surface of the sampling container, and the outer edge of the sealing cap is provided with anti-slip texture.
[0008] In at least some embodiments, the lower outer edge of the rotating locking rod is fixedly connected to a limiting outer edge of an annular structure, and the limiting outer edge is located inside the settling port.
[0009] In at least some embodiments, the upper end of the rotating locking rod is provided with a rotating end, which is an external hexagonal prism.
[0010] In at least some embodiments, the inner diameters of the first sealing sleeve and the second sealing sleeve are equal to the inner diameters of the sampling hole and the vent hole, and the outer surface of the rotating locking rod is tightly fitted with the inner walls of the first sealing sleeve and the second sealing sleeve.
[0011] This utility model provides a sampling device for detecting pH value in drinking water, which has the following beneficial effects:
[0012] The sampling container for drinking water pH testing in this invention is used for sample storage and can be quickly opened and closed. Under normal conditions, the lower and upper ports are sealed by the first and second sealing sleeves, respectively. Rotating the locking lever allows the lower and upper ports to align with the first and second sleeve ports, respectively. During sampling, the sample can enter the sampling container through the lower port, the lower port, and the first sleeve port for storage. Excess air inside the sampling container is discharged through the second sleeve port, the upper port, and the upper port, thus completing the drinking water sampling. During the sampling process, the sample and the inside of the container will not come into contact with external objects and will not be affected by external factors, thus ensuring the purity of the sample.
[0013] Furthermore, the sampling device in this application can be used with a push-pull syringe for sampling. During sampling, the rotating locking rod is rotated to connect the lower port to the first sleeve port and the upper port to the second sleeve port. Then, the syringe is connected to the upper port, and the sampling hole contacts the drinking water. During the sampling process, the syringe is pulled to extract the air from the inside of the sampling container, thereby reducing the air pressure inside the sampling container. This allows the drinking water to pass through the lower port, the lower sleeve port, and the first sleeve port into the sampling container for sampling. For sampling different types of drinking water being tested, there will be no sample contamination or mixing.
[0014] In addition, the sampling container is small in size and has a similar shape to a test tube, so it can be placed in a test tube rack. The sealing cap can be removed from the top of the sampling container, opening the top of the sampling container and facilitating sample testing in the laboratory. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0017] In the attached diagram:
[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;
[0019] Figure 2 A schematic diagram of the internal structure of the sampling container of this application is shown;
[0020] Figure 3 This paper shows a schematic diagram of the structure in its disassembled state.
[0021] Figure 4 A schematic diagram of the structure of the port in this application is shown;
[0022] Figure 5 A schematic diagram of the rotating locking rod of this application is shown;
[0023] Figure 6 A schematic diagram of the sealing cap of this application is shown;
[0024] Figure 7 The structure of the sampling container of this application is shown.
[0025] List of reference numerals
[0026] 1. Sampling container; 101. Sampling hole; 102. Settling port; 103. First sealing sleeve; 104. First sleeve opening; 2. Sealing cap; 201. Vent hole; 202. Second sealing sleeve; 203. Second sleeve opening; 204. Anti-slip texture; 3. Rotating locking rod; 301. Lower port; 302. Limiting outer edge; 303. Lower opening; 304. Upper port; 305. Rotating end; 306. Upper opening. Detailed Implementation
[0027] 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. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] Example 1: Please refer to Figures 1 to 7 :
[0029] This utility model discloses a sampling device for detecting the pH value of drinking water, comprising: a sampling container 1, a sealing cap 2 tightly fastened to the upper end of the sampling container 1, a sampling hole 101 opened at the bottom of the sampling container 1, a settling port 102 opened on the lower surface of the sampling container 1, the settling port 102 being located at the lower end of the sampling hole 101, the settling port 102 being coaxial with the sampling hole 101, the sampling hole 101 communicating with the settling port 102, a first sealing sleeve 103 fixedly connected above the sampling hole 101, and a first sleeve opening 104 opened on the wall of the first sealing sleeve 103 for sampling... A rotating locking rod 3 is tightly slidably connected to the sample hole 101. The rotating locking rod 3 is coaxial with the sampling container 1. An air vent 201 is opened in the middle of the sealing cover 2. A second sealing sleeve 202 is fixedly connected below the air vent 201. The inner diameters of the first sealing sleeve 103 and the second sealing sleeve 202 are equal to the inner diameters of the sample hole 101 and the air vent 201, respectively. The outer surface of the rotating locking rod 3 is tightly fitted with the inner walls of the first sealing sleeve 103 and the second sealing sleeve 202. A second sleeve opening 203 is opened on the wall of the second sealing sleeve 202. The air vent 201 is tightly slidably connected to the sample hole 101. The rotating locking rod 3 is dynamically connected. The upper end of the rotating locking rod 3 has an upper port 304 and the lower end has a lower port 301. The upper port 304 has an upper opening 306 on its side, and the lower port 301 has a lower opening 303 on its side. Under normal conditions, the lower opening 303 and the upper opening 306 are sealed by the first sealing sleeve 103 and the second sealing sleeve 202, respectively, keeping the sampling container 1 sealed. When using the sampling container 1 for sampling, the rotating locking rod 3 can be rotated to align the lower opening 303 and the upper opening 306 with the openings of the first sleeve 104 and the second sealing sleeve 202, respectively. The two sleeve ports 203 allow the upper and lower ends of the sampling container 1 to be opened with channels. When the lower half of the sampling container 1 is placed in drinking water, the drinking water can automatically enter the sampling container 1 through the lower port 301, the lower opening 303 and the first sleeve port 104 to complete the sampling. Alternatively, a syringe can be connected to the upper port 304 to remove the air from the sampling container 1, thereby reducing the air pressure inside the sampling container 1 and allowing the drinking water to pass through the lower port 301, the lower opening 303 and the first sleeve port 104 to enter the sampling container 1 for sampling. The sampling methods are diversified.
[0030] In this embodiment, the inner wall of the outer edge of the sealing cap 2 is tightly fitted to the outer surface of the sampling container 1, and the outer edge of the sealing cap 2 is provided with anti-slip texture 204; the sampling container 1 is small in size and has a shape structure similar to a test tube, and can be placed in a test tube rack. The anti-slip texture 204 plays an anti-slip role, making it easy to remove the sealing cap 2 from the top of the sampling container 1 and open the top opening of the sampling container 1, which facilitates the testing of samples in the laboratory.
[0031] In Example 2, based on Example 1, the lower outer edge of the rotating locking rod 3 is fixedly connected with a ring-shaped limiting outer edge 302. The limiting outer edge 302 is located inside the settling port 102 and serves as a limiting function, facilitating the assembly of the rotating locking rod 3. The upper end of the rotating locking rod 3 is provided with a rotating end 305, which is an external hexagonal prism, making it easy to manually rotate the rotating locking rod 3 to adjust its direction.
[0032] The working principle of this embodiment is as follows: First, during sampling, the rotating end 305 is manually rotated to rotate the rotating locking rod 3 180 degrees, aligning the lower port 303 and the upper port 306 with the first sleeve port 104 and the second sleeve port 203, respectively. The bottom of the sampling container 1 is inserted into the drinking water to be tested. The upper port 304 is connected to a syringe, and the air inside the sampling container 1 is evacuated through the syringe, reducing the air pressure inside the sampling container 1. This allows the drinking water to pass through the lower port 301, the lower port 303, and the first sleeve port 104 into the sampling container 1 for storage. After sampling is completed, the rotating end 305 is manually rotated 180 degrees to seal the lower port 303 and the upper port 306, sealing and storing the sample before sending it to the laboratory. The sampling container 1 can be vertically inserted into a test tube rack, the sealing cap 2 removed, and the sampling container 1 opened. The pH value of the sample can then be measured using a dedicated pH testing device.
[0033] The following points should be noted in this article:
[0034] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0035] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0036] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A drinking water pH value detection and sampling device, comprising: A sampling container (1) is provided with a sealing cap (2) tightly fastened to its upper end. The sampling container (1) has a sampling hole (101) at its bottom, and a first sealing sleeve (103) is fixedly connected above the sampling hole (101). A first sleeve opening (104) is provided on the wall of the first sealing sleeve (103). A rotating locking rod (3) is tightly slidably connected to the sampling hole (101). The rotating locking rod (3) is coaxial with the sampling container (1). The sealing cap (2) is located in the middle... An air outlet (201) is provided, and a second sealing sleeve (202) is fixedly connected below the air outlet (201). A second sleeve opening (203) is provided on the wall of the second sealing sleeve (202). The air outlet (201) is tightly slidably connected to the rotating locking rod (3). The upper end (304) and the lower end (301) of the rotating locking rod (3) are respectively provided with an upper port (304) and a lower port (301). An upper opening (306) is provided on the side of the upper port (304), and a lower opening (303) is provided on the side of the lower port (301).
2. The drinking water pH value detection and sampling device according to claim 1, characterized in that, The sampling container (1) has a settling port (102) on its lower surface. The settling port (102) is located at the lower end of the sampling hole (101). The settling port (102) is coaxial with the sampling hole (101), and the sampling hole (101) is connected to the settling port (102).
3. The drinking water pH value detection and sampling device according to claim 1, characterized in that, The inner wall of the outer edge of the sealing cap (2) is tightly fitted to the outer surface of the sampling container (1), and the outer edge of the sealing cap (2) is provided with anti-slip texture (204).
4. The drinking water pH value detection and sampling device according to claim 2, characterized in that, The lower outer edge of the rotating locking rod (3) is fixedly connected with a ring-shaped limiting outer edge (302), which is located inside the settling port (102).
5. The drinking water pH value detection and sampling device according to claim 1, characterized in that, The upper end of the rotating locking rod (3) is provided with a rotating end (305), which is an external hexagonal prism.
6. The drinking water pH value detection and sampling device according to claim 1, characterized in that, The inner diameters of the first sealing sleeve (103) and the second sealing sleeve (202) are equal to the inner diameters of the sampling hole (101) and the air outlet (201), and the outer surface of the rotating locking rod (3) is tightly fitted with the inner walls of the first sealing sleeve (103) and the second sealing sleeve (202).