Two-in-one functional cleaning and sampling needle pool

Abstract

The utility model discloses a two-in-one functional cleaning and sampling needle pool, which belongs to the technical field of detection instruments and comprises a shell, a water inlet end for feeding water and a water outlet end for draining water are arranged on the outer side of the shell, a cleaning pool and a pure water pool are arranged on the inner side of the shell, the pure water pool is positioned inside the cleaning pool, and the water inlet end is communicated with the water outlet end. The pure water tank is communicated with the top of the cleaning tank; the pure water tank is communicated with the water inlet end, and the cleaning tank is communicated with the water outlet end, so that the installation space is saved, the cleaning efficiency of the sampling needle is improved, the cleaning effect is remarkable, and the risk of cross contamination of samples is reduced. Water taking is convenient, the sample diluting efficiency is improved, and samples with multiple measuring ranges can be measured.

Description

Technical Field

[0001] The utility model relates to the technical field of detection instruments, in particular to a two-in-one function cleaning sampling needle pool. Background Art

[0002] The sampling needle draws the sample from the sample tube and adds it to the reaction tube. To prevent cross-contamination between samples, the needle must be cleaned after each sampling and addition. The sampling needle must be thoroughly cleaned before the next sampling can be performed. If the sample concentration is too high, the sample must be diluted before measurement. This dilution requires the addition of a certain amount of pure water. Currently, laboratory equipment separates the cleaning and pure water stations, which requires more space.

[0003] Existing technologies, such as Chinese patent publication number CN104690044B, disclose an active sampling needle cleaning device and cleaning method for preventing cross contamination, including a cleaning tank, a high-pressure cleaning pump and a cleaning solvent selection valve; the cleaning tank is connected to the high-pressure cleaning pump through a tee, and the high-pressure cleaning pump is connected to the cleaning solvent selection valve; the cleaning tank includes a tank body, and a plurality of pinholes are arranged side by side on the upper surface of the tank body, and the pinholes extend downward in the tank body to form a plurality of sampling needle cavities; two liquid inlet holes are provided on the upper end of one side surface of the tank body, and the two liquid inlet holes are respectively connected to one end of two liquid channels provided in the tank body, and the two liquid channels are located on both sides of the sampling needle cavity, and the other end of each liquid channel is located inside the tank body; the two liquid channels are connected to each sampling needle cavity through a connecting channel perpendicular to the liquid channel.

[0004] The above patent can clean the sampling needle to prevent cross contamination of the sampling needle, but the needle needs to be cleaned after each sampling and adding of the sample. The sampling needle can only be used for the next sampling after it is fully cleaned, and the process is relatively complicated. Utility Model Content

[0005] The utility model provides a two-in-one function cleaning sampling needle pool, which saves installation space, improves the cleaning efficiency of the sampling needle, and can also take water to dilute the sample.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A two-in-one functional cleaning sampling needle pool includes a shell, a water inlet end for water intake and a water outlet end for drainage are provided on the outside of the shell, a cleaning pool and a pure water pool are opened on the inside of the shell, the pure water pool is located inside the cleaning pool, and the pure water pool is connected to the top of the cleaning pool; the pure water pool is connected to the water inlet end, and the cleaning pool is connected to the water outlet end.

[0008] The preferred technical solution of the present invention is that the height of the pool wall of the cleaning pool is higher than the height of the pool wall of the pure water pool, so that the water overflowing from the pure water pool can flow into the cleaning pool.

[0009] A preferred technical solution of the present invention is that the position of the water outlet is higher than the position of the water inlet.

[0010] The preferred technical solution of the present invention is that a reinforcement portion is provided between the outer wall of the cleaning pool and the shell, a circular hole is provided on the reinforcement portion, and a thread is provided in the circular hole.

[0011] The preferred technical solution of the present invention is that it also includes a reinforcement layer, which is screwed to the reinforcement part; a cleaning hole and a pure water hole are respectively opened on the reinforcement layer, and the cleaning hole and the pure water hole are respectively located above the cleaning pool and the pure water pool.

[0012] A preferred technical solution of the present invention is that a fixing portion is provided at the bottom of the shell, a fixing hole is provided on the fixing portion and passes through the shell, and a thread is provided in the fixing hole.

[0013] The preferred technical solution of the present invention is that it further includes a first peristaltic pump and a second peristaltic pump, and the first peristaltic pump and the second peristaltic pump are connected to the water inlet and the water outlet respectively.

[0014] The preferred technical solution of the present invention is that the water inlet end is connected to the center of the bottom of the pure water pool to form a liquid inlet channel, and the water outlet end is connected to one side of the bottom of the cleaning pool to form a liquid discharge channel.

[0015] The preferred technical solution of the present invention is that the depth of the pure water pool is at least greater than 1 / 3 of the sampling needle, and the depth of the cleaning pool is greater than the depth of the pure water pool.

[0016] The beneficial effects of the utility model are:

[0017] The utility model proposes a two-in-one function cleaning sampling needle pool. By placing the pure water pool and the cleaning pool in the same device, the installation space is saved, the cleaning efficiency of the sampling needle is improved, the cleaning effect is significant, the risk of sample cross-contamination is reduced, and water is convenient to take, the efficiency of sample dilution is improved, and samples of multiple ranges can be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the two-in-one cleaning and sampling needle pool provided in a specific embodiment of the utility model;

[0019] Figure 2This is a front view of the overall structure of the two-in-one cleaning sampling needle pool provided in a specific embodiment of the utility model;

[0020] Figure 3 yes Figure 2 Cross-section along the middle BB line;

[0021] Figure 4 This is a schematic diagram of a reinforcement plate covering the overall structure of a two-in-one cleaning and sampling needle pool provided in a specific embodiment of the present invention;

[0022] In the picture:

[0023] 1. Shell; 2. Water inlet; 3. Water outlet; 4. Cleaning tank; 5. Pure water tank; 6. Reinforcement part; 7. Round hole; 8. Fixing part; 9. Fixing hole; 10. Sampling needle; 11. Liquid inlet channel; 12. Reinforcement layer; 13. Cleaning hole; 14. Pure water hole. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] like Figure 1-4 As shown, the utility model provides a sampling needle 10 cleaning and sample dilution device, including a shell 1, a water inlet 2 and a water outlet 3 are provided on the outside of the shell 1, a pure water pool 5 and a cleaning pool 4 are provided on the shell 1, the pure water pool 5 is located inside the cleaning pool 4, and the cleaning pool 4 is connected to the top of the pure water pool 5, the water inlet 2 is connected to the pure water pool 5, and the water outlet 3 is connected to the cleaning pool 4, which can realize the function of cleaning the sampling needle 10 and the function of diluting the sample after taking water from the pure water pool 5. It saves installation space, improves the cleaning efficiency of the sampling needle 10, has a significant cleaning effect, and reduces the risk of sample cross-contamination. It is convenient to take water, improves the efficiency of diluting samples, and can measure samples of multiple ranges.

[0026] The height of the pool wall of the pure water pool 5 is lower than the height of the pool wall of the cleaning pool 4 , so that the water overflowing from the pure water pool 5 can flow into the cleaning pool 4 through the pool opening of the pure water pool 5 .

[0027] A reinforcement portion 6 is provided between the outer side of the cleaning tank 4 and the shell 1 . The reinforcement portion 6 is provided with a plurality of circular holes 7 . Threads are provided in the circular holes 7 to facilitate the installation of the reinforcement layer.

[0028] A cleaning hole 13 and a pure water hole 14 are provided on the reinforcement layer 12, and the cleaning hole 13 and the pure water hole 14 are respectively located above the cleaning pool 4 and the pure water pool 5. The reinforcement layer 12 is screwed to the reinforcement part 6 and fixed to the top of the shell 1, and the sampling needle 10 enters the cleaning pool 4 and the pure water pool 5 respectively through the cleaning hole 13 and the pure water hole 14. The cleaning pool 4 and the pure water pool 5 are placed under the layer and installed in a hidden manner, with only the openings of the cleaning hole and the pure water hole exposed.

[0029] The water inlet end 2 and the water outlet end 3 are respectively connected to a first peristaltic pump and a second peristaltic pump, so as to facilitate the water inlet and outlet of the pure water pool 5 and the cleaning pool 4 .

[0030] The bottom of the housing 1 is further provided with a fixing portion 8, and a fixing hole 9 is provided on the fixing portion 8 to facilitate fixing the housing 1 in the position of use and prevent deviation from affecting use.

[0031] The depth of the pure water pool 5 is at least greater than 1 / 3 of the sampling needle 10 , and the depth of the cleaning pool 4 is greater than that of the pure water pool 5 , which facilitates dilution of the sampling needle 10 and enables the cleaning pool 4 to accommodate more liquid overflowing from the pure water pool 5 .

[0032] The water inlet 2 is connected to the bottom center of the pure water pool 5, and the water outlet 3 is connected to one side of the bottom of the cleaning pool 4, so that the water inlet speed is lower than the water outlet speed, which facilitates water circulation of the device.

[0033] How it works

[0034] At the bottom of the right side wall of the cleaning tank 4 is a liquid inlet channel 11. This channel has a threaded hole for connecting to a Teflon tube. Pure water enters the cleaning tank 4 through this channel and flows into the pure water reservoir 5. The sampling needle 10 must first undergo a cleaning process before drawing clean pure water for sample dilution. When executing the cleaning procedure, the sampling needle 10 is inserted into the cleaning tank 4 for cleaning. At this time, pure water is continuously injected by the first peristaltic pump so that the liquid fills the pure water tank 5 and overflows from the pure water tank 5 to the cleaning tank 4. In this process, a part of the pure water will be discharged outward from the water outlet 3 to rinse the cleaning tank 4, so as to maintain the cleanliness of the pure water tank 5 and the cleaning tank 4. Then the speed of the first peristaltic pump is reduced to keep the liquid level in the cleaning tank 4 at 2 / 3, which can be observed visually. At this time, the liquid in the pure water tank 5 and the cleaning tank 4 are in a flowing state. Next, the sampling needle 10 is inserted into the cleaning tank 4. The liquid submerges the front 1 / 3 of the sampling needle 10. The sampling needle 10 draws pure water and then discharges the pure water. There is an interval of 5 seconds between each extraction. The above cleaning steps are repeated to clean the inner and outer walls of the sampling needle 10. After cleaning, the sampling needle 10 is lifted and the remaining pure water is drained. The sampling needle 10 is then inserted into the pure water reservoir 5 to draw pure water from the reservoir. The pure water is then transferred to the cleaning reservoir 4, where the rinse water is drained. After multiple rinses, the sampling needle 10 is finally returned to the pure water reservoir 5 to draw pure water for the diluted sample. The pure water reservoir 5 is primarily a dilution area, while the cleaning reservoir 4 is primarily a cleaning area. The pure water reservoir 5 and the cleaning reservoir 4 do not need to have specific shapes.

[0035] The same device performs both cleaning and sample dilution functions. Pure water flows from the inlet channel of pure water reservoir 5 into cleaning reservoir 4. Sampling needle 10 is inserted into pure water reservoir 5 for cleaning. After sampling needle 10 completes cleaning, waste liquid overflows into cleaning reservoir 4. If the sample concentration is too high, sampling needle 10 draws pure water from pure water reservoir 5 and adds it to the reaction vessel for sample dilution and measurement.

[0036] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application are also within the scope of protection of the present invention.

Claims

1. A two-in-one cleaning and sampling needle pool, characterized by: The invention comprises a shell (1), wherein a water inlet (2) for water inlet and a water outlet (3) for water discharge are provided on the outer side of the shell (1), a cleaning pool (4) and a pure water pool (5) are provided on the inner side of the shell (1), the pure water pool (5) is located inside the cleaning pool (4), and the pure water pool (5) is connected to the top of the cleaning pool (4); The pure water pool (5) is connected to the water inlet (2), and the cleaning pool (4) is connected to the water outlet (3).

2. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: The height of the pool wall of the cleaning pool (4) is higher than the height of the pool wall of the pure water pool (5), so that water overflowing from the pure water pool (5) can flow into the cleaning pool (4).

3. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: The position of the water outlet (3) is higher than the position of the water inlet (2).

4. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: A reinforcement portion (6) is provided between the outer wall of the cleaning tank (4) and the shell (1), a circular hole (7) is provided on the reinforcement portion (6), and a thread is provided in the circular hole (7).

5. The two-in-one cleaning and sampling needle pool according to claim 4, characterized in that: It also includes a reinforcement layer (12), wherein the reinforcement layer (12) is screwed onto the reinforcement portion (6); A cleaning hole (13) and a pure water hole (14) are respectively provided on the reinforcement layer plate (12), and the cleaning hole (13) and the pure water hole (14) are respectively located above the cleaning pool (4) and the pure water pool (5).

6. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: The bottom of the shell (1) is provided with a fixing portion (8), the fixing portion (8) is provided with a fixing hole (9) penetrating the shell (1), and a thread is provided in the fixing hole (9).

7. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: It also includes a first peristaltic pump and a second peristaltic pump, wherein the first peristaltic pump and the second peristaltic pump are respectively connected to the water inlet (2) and the water outlet (3).

8. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: The water inlet end (2) is connected to the bottom center of the pure water pool (5) to form a liquid inlet channel (11), and the water outlet end (3) is connected to one side of the bottom of the cleaning pool (4) to form a liquid discharge channel.

9. The two-in-one cleaning and sampling needle pool according to claim 1, characterized in that: The depth of the pure water pool (5) is at least greater than 1 / 3 of the sampling needle (10), and the depth of the cleaning pool (4) is greater than the depth of the pure water pool (5).

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