Sample liquid preparation device for detecting tableware anion synthetic detergent

Abstract

The utility model belongs to the technical field of food safety detection equipment, and provides a device for preparing a sample solution for detecting a tableware anion synthetic detergent, which comprises a sample preparation box body, a liquid storage box body, a liquid storage box body, a liquid storage box body and a liquid storage box body, wherein the sample preparation box body is provided with a cleaning sample preparation cavity and a circulating liquid storage cavity; the micro circulating pump is arranged in the sample preparation box body; one end of the cleaning water outlet pipeline is connected with the micro circulating pump, the other end of the cleaning water outlet pipeline extends into the cleaning sample preparation cavity, and the cleaning water outlet pipeline is provided with a sample outlet branch; one end of the circulating water pumping pipeline is connected with the micro circulating pump, and the other end of the circulating water pumping pipeline extends into the circulating liquid storage cavity. The sample liquid preparation device for detecting the anion synthetic detergent for tableware can automatically extract distilled water and circularly and repeatedly wash the inner surface of the tableware, is convenient to use, shortens sampling and sample preparation time, improves detection efficiency, reduces labor intensity of detection personnel, is large in washing force on the inner surface of the tableware, ensures comprehensive and thorough sampling, and reduces labor intensity of the detection personnel. Therefore, the detection accuracy and reliability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of food safety detection equipment, in particular to a sample liquid preparation device for tableware anion synthetic detergent detection. Background Art

[0002] According to the national standard GB 14934-2016 "National Food Safety Standard for Disinfection of Tableware", anionic synthetic detergents should not be detected in tableware that is disinfected by chemical methods. Among them, the tableware sampling method is given: rinse the entire inner surface of the tableware (bowls, plates, dishes, cups, wine glasses, etc.) to be tested with distilled water 3 to 5 times (according to the ratio of 100mL of distilled water per 100cm2 surface area) to prepare the sample solution for use.

[0003] At present, the tableware anion synthetic washing test usually uses a washing bottle and a pipette to collect and prepare the sample solution according to the above sampling method, and there is no dedicated rinsing and sample preparation equipment. However, since the tableware surface needs to be rinsed 3 to 5 times during the sampling process, it needs to be manually sucked and rinsed repeatedly, which takes a long time and has a slow rinsing speed, seriously affecting the efficiency of sampling and sample preparation and increasing the labor intensity of the operator; in addition, since the rinsing process is to manually squeeze the washing bottle to spray distilled water onto the tableware surface, the spraying and flushing intensity of the manually squeezed distilled water is limited, and it cannot ensure that the inner surface of the tableware is rinsed thoroughly, which in turn affects the accuracy of the test results.

[0004] Therefore, it is necessary to design a sample solution preparation device for tableware anionic synthetic detergent detection that can shorten the sampling and sample preparation time, thereby improving the detection efficiency and ensuring the accuracy and reliability of the detection results. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes a sample liquid preparation device for tableware anion synthetic detergent detection, which can automatically extract distilled water and circulate and repeatedly rinse the inner surface of tableware. It is easy to use, shortens the sampling and sample preparation time, improves the detection efficiency, reduces the labor intensity of the detection personnel, and has a strong rinse force on the inner surface of the tableware, ensuring that the sampling is comprehensive and thorough, thereby improving the accuracy and reliability of the detection.

[0006] The technical solution of the utility model is:

[0007] The utility model provides a sample solution preparation device for tableware anion synthetic detergent detection, comprising:

[0008] A sample preparation box, wherein the sample preparation box is provided with a connected cleaning sample preparation chamber and a circulating liquid storage chamber, wherein the circulating liquid storage chamber is provided below the cleaning sample preparation chamber;

[0009] A micro-circulation pump, wherein the micro-circulation pump is arranged inside the sample preparation box;

[0010] A cleaning water outlet pipeline, one end of which is connected to the micro-circulation pump, and the other end of which extends into the cleaning sample preparation cavity and is provided with a flushing nozzle at its end, and the cleaning water outlet pipeline is provided with a sample outlet branch for collecting sample liquid;

[0011] A circulating water pumping pipeline, one end of which is connected to the micro-circulating pump, and the other end of which extends into the circulating liquid storage chamber.

[0012] Preferably, the cleaning and sample preparation chamber comprises a column chamber portion and a cone chamber portion which are connected to each other, and the cone chamber portion is located below the column chamber portion and is connected to the circulating liquid storage chamber.

[0013] Preferably, the flushing nozzle is a high-pressure fine water mist open nozzle, and is arranged at the cone top position of the cone cavity portion.

[0014] Preferably, the sample outlet branch is provided with a sample outlet opening and closing valve, and the cleaning water outlet pipeline is provided with a cleaning opening and closing valve near the flushing nozzle end.

[0015] Preferably, the sample liquid preparation device provided by the utility model further includes a controller, and the sample outlet opening and closing valve and the cleaning opening and closing valve are both solenoid valves electrically connected to the controller;

[0016] The micro circulation pump is electrically connected to the controller.

[0017] Preferably, a concave area is provided at the bottom of the circulating liquid storage chamber, and the water inlet end of the circulating water pumping pipeline is arranged close to the concave area.

[0018] Preferably, the sample liquid preparation device provided by the utility model further comprises a storage battery arranged inside the sample preparation box, and the storage battery is connected to the micro circulation pump;

[0019] The sample preparation box is provided with a charging interface connected to the battery.

[0020] Preferably, the sample preparation box is provided with a lower storage tank for placing a measuring cylinder, and a sealing cover adapted to the cleaning sample preparation cavity.

[0021] Preferably, the sample liquid preparation device provided by the utility model further comprises a box cover movably hinged to the sample preparation box body;

[0022] The box cover is provided with an upper storage groove matched with the measuring cylinder, and a cover groove matched with the sealing cover.

[0023] Compared with the prior art, the utility model has the following advantages and effects:

[0024] (1) The cleaning sample preparation chamber and the circulating liquid storage chamber are connected. The tableware is placed in the cleaning sample preparation chamber with the inner surface facing downward to complete the rinsing. During the rinsing process, the sample solution automatically flows downward into the circulating liquid storage chamber, and is extracted and sprayed into the cleaning sample preparation chamber again under the action of a micro-circulating pump to rinse the tableware, thereby realizing the function of automatic circulation and repeated rinsing, without the need for manual extraction and flushing, shortening the sampling and sample preparation time and improving the detection efficiency;

[0025] (2) The cleaning water outlet pipe and circulating water pump pipe connected to the micro-circulation pump are used. Under the action of the micro-circulation pump, the quantitative distilled water is automatically circulated and repeatedly rinsed. The rinsing force is strong. Compared with the washing bottle in the existing sampling method, the inner surface of the tableware can be rinsed more comprehensively and thoroughly, thereby improving the reliability of the prepared sample solution and ensuring the accuracy of the test results;

[0026] (3) A sample outlet branch connected to the cleaning water outlet pipeline is used. After the flushing and sample preparation is completed, the prepared sample liquid is stored in the circulating liquid storage chamber. The prepared sample liquid can be extracted through the sample outlet branch by a micro-circulation pump, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a sample solution preparation device for tableware anion synthetic detergent detection in Example 1 of the utility model;

[0028] Figure 2 This is a schematic structural diagram of a sample preparation box in a sample preparation device for tableware anion synthetic detergent detection in Example 1 of the utility model;

[0029] Figure 3 It is another structural schematic diagram of the sample preparation box in the sample liquid preparation device for tableware anion synthetic detergent detection in Example 1 of the utility model;

[0030] Figure 4 It is a top view of the sample preparation box in the sample liquid preparation device for tableware anion synthetic detergent detection in Example 1 of the utility model;

[0031] Figure 5 for Figure 4 Cross-sectional view at the AA position in the middle.

[0032] Figure markings: 1-sample preparation box, 11-cleaning sample preparation chamber, 111-column chamber part, 112-cone chamber part, 12-circulating liquid storage chamber, 121-concave area, 13-lower storage tank, 14-sealing cover, 2-micro circulation pump, 3-cleaning water outlet pipeline, 31-flushing nozzle, 32-sample outlet branch, 4-circulating water pumping pipeline, 5-controller, 6-battery, 7-charging interface, 8-measuring cylinder, 9-box cover, 91-upper storage tank, 92-cover tank. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0034] Embodiment 1:

[0035] like Figure 1~Figure 5 As shown, the utility model provides a sample liquid preparation device for tableware anion synthetic detergent detection, comprising a sample preparation box 1, a micro-circulation pump 2, a cleaning water outlet pipeline 3, a circulating water pumping pipeline 4, a controller 5, a battery 6, and a box cover 9; wherein, the cleaning water outlet pipeline 3 is used to rinse the inner surface of the tableware, the circulating water pumping pipeline 4 is used to circulate and extract quantitative distilled water for use, the micro-circulation pump 2 is connected to the controller 5 to control the start and stop of the water pump, the battery 6 is used to supply energy to the micro-circulation pump 2, and the box cover 9 is movably hinged to the sample preparation box 1 for easy carrying and transportation; it should be noted that the controller 5 in this embodiment only plays a simple switch role, which is a mature existing technology, and the specific structure will not be described in detail here.

[0036] The sample preparation box 1 is provided with a connected cleaning sample preparation chamber 11 and a circulating liquid storage chamber 12, and the circulating liquid storage chamber 12 is arranged below the cleaning sample preparation chamber 11; the cleaning sample preparation chamber 11 includes a connected column cavity portion 111 and a cone cavity portion 112, the cone cavity portion 112 is located below the column cavity portion 111 and is connected to the circulating liquid storage chamber 12, the column cavity portion 111 is open at the top, and the cone cavity portion 112 is in an inverted cone shape so that tableware can be inverted and stuck in the cone cavity portion 112, the circulating liquid storage chamber 12 is a columnar cavity and a concave area 121 is arranged at the bottom thereof, and the specific concave area 121 is arranged at the center of the bottom, that is, the height of the concave area 121 at the bottom of the circulating liquid storage chamber 12 is the lowest, so that the sample liquid is collected at the concave area 121.

[0037] The micro-circulation pump 2 is fixedly arranged inside the sample preparation box 1, and is electrically connected to the battery 6 through a connecting line; the water inlet end of the cleaning water outlet pipeline 3 is connected to the water outlet of the micro-circulation pump 2, and its water outlet end extends into the cleaning sample preparation chamber 11 and a flushing nozzle 31 is arranged at its end; the water outlet end of the circulating pumping pipeline 4 is connected to the water inlet of the micro-circulation pump 2, and its water inlet end extends into the circulating liquid storage chamber 12 and the end of the water inlet end is arranged close to the concave area 121, so as to suck the sample liquid in the circulating liquid storage chamber 12 clean.

[0038] The flushing nozzle 31 is a high-pressure fine water mist open nozzle, and is arranged at the top of the cone cavity 112 to ensure that the inner surface of the tableware can be fully and thoroughly flushed.

[0039] The cleaning water outlet pipeline 3 is provided with a sample outlet branch 32 for collecting sample liquid, and the sample outlet branch 32 is provided with a sample outlet opening and closing valve. The cleaning water outlet pipeline 3 is provided with a cleaning opening and closing valve near the end of the flushing nozzle 31. The sample outlet opening and closing valve and the cleaning opening and closing valve are both solenoid valves electrically connected to the controller 5. The controller 5 is provided with a switch for controlling the sample outlet opening and closing valve and the cleaning opening and closing valve. During the cleaning process, the sample outlet opening and closing valve is closed and the cleaning opening and closing valve is opened. During the sampling process, the sample outlet opening and closing valve is opened and the cleaning opening and closing valve is closed.

[0040] The sample preparation box 1 is provided with a charging interface 7 connected to the battery 6 so as to be charged by an external power source.

[0041] The sample preparation box 1 is provided with a lower storage slot 13 for placing a measuring cylinder 8, and a sealing cover 14 adapted to the cleaning sample preparation chamber 11; the box cover 9 is provided with an upper storage slot 91 adapted to the measuring cylinder 8, and a cover slot 92 adapted to the sealing cover 14; the upper storage slot 91 cooperates with the lower storage slot 13 to achieve stable fixation of the measuring cylinder 8, and the sealing cover 14 achieves the closure of the cleaning sample preparation chamber 11 to avoid sample contamination.

[0042] Furthermore, a flexible convex portion (not shown in the figure) is provided on the lower end surface of the sealing cover 14, which extends into the cleaning and sample preparation cavity 11 and abuts against the tableware, thereby exerting a downward pressing force on the tableware to improve the stability of the tableware during sampling and flushing.

[0043] During specific use, first determine the inner surface area of ​​the tableware to be inspected, and use the measuring cylinder 8 to measure a certain amount of distilled water according to the measured inner surface area (100 mL of distilled water is used for every 100 cm2 of surface area), open the sealing cover 14 of the sample preparation box 1, pour the distilled water into the cleaning sample preparation cavity 11, and the distilled water automatically flows into the circulating liquid storage cavity 12 below; then place the tableware to be inspected with the inner surface downward into the conical cavity 112 of the clear sample preparation cavity, try to ensure that the tableware to be inspected is placed horizontally, the edge of the tableware to be inspected is abutted and fixed with the inner wall of the conical cavity 112, and the sealing cover 14 is closed; check the controller 5 to ensure that the switch of the sample outlet opening and closing valve is in the The micro-circulation pump 2 is then started; the distilled water in the circulating liquid storage chamber 12 is sucked to the cleaning water outlet pipe 3 through the circulating water pumping pipe 4 under the action of the micro-circulation pump 2, and is sprayed to the inner surface of the tableware to be inspected through the flushing nozzle 31. The cleaned solution automatically falls back into the circulating liquid storage chamber 12 under the action of gravity, and the tableware to be inspected is repeatedly flushed in this way; after flushing for a certain period of time, the sample solution is prepared, the sample outlet valve is opened by the switch on the controller 5, and the cleaning valve is closed, and a sample receiving container is placed at the liquid outlet end of the sample outlet branch 32 to receive the prepared sample liquid.

[0044] In summary, the sample liquid preparation device for tableware anion synthetic detergent detection provided by the utility model can automatically extract distilled water and circulate and repeatedly rinse the inner surface of the tableware. It is easy to use, shortens the sampling and sample preparation time, improves the detection efficiency, reduces the labor intensity of the detection personnel, and has a strong rinse force on the inner surface of the tableware, ensuring that the sampling is comprehensive and thorough, thereby improving the accuracy and reliability of the detection.

[0045] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A sample solution preparation device for tableware anionic synthetic detergent detection, characterized in that: include: A sample preparation box (1), the sample preparation box (1) being provided with a cleaning sample preparation chamber (11) and a circulating liquid storage chamber (12) which are connected to each other, the circulating liquid storage chamber (12) being arranged below the cleaning sample preparation chamber (11); A micro-circulation pump (2), wherein the micro-circulation pump (2) is arranged inside the sample preparation box (1); A cleaning water outlet pipeline (3), one end of the cleaning water outlet pipeline (3) is connected to the micro-circulation pump (2), the other end of the cleaning water outlet pipeline (3) extends into the cleaning sample preparation chamber (11) and a flushing nozzle (31) is provided at the end thereof, and the cleaning water outlet pipeline (3) is provided with a sample outlet branch (32) for collecting sample liquid; A circulating water pumping pipeline (4), wherein one end of the circulating water pumping pipeline (4) is connected to the micro circulating pump (2), and the other end extends into the circulating liquid storage chamber (12).

2. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 1, characterized in that: The cleaning sample preparation chamber (11) comprises a column chamber portion (111) and a cone chamber portion (112) which are connected to each other. The cone chamber portion (112) is located below the column chamber portion (111) and is connected to the circulating liquid storage chamber (12).

3. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 2, characterized in that: The flushing nozzle (31) is a high-pressure fine water mist open nozzle, and is arranged at the top of the cone of the cone cavity (112).

4. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 1, characterized in that: The sample outlet branch (32) is provided with a sample outlet opening and closing valve, and the cleaning water outlet pipeline (3) is provided with a cleaning opening and closing valve at the end close to the flushing nozzle (31).

5. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 4, characterized in that: It also includes a controller (5), wherein the sample outlet on-off valve and the cleaning on-off valve are both solenoid valves electrically connected to the controller (5); The micro circulation pump (2) is electrically connected to the controller (5).

6. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 1, characterized in that: The bottom of the circulating liquid storage cavity (12) is provided with a concave area (121), and the water inlet end of the circulating water pumping pipeline (4) is arranged close to the concave area (121).

7. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 1, characterized in that: It also includes a storage battery (6) arranged inside the sample preparation box (1), and the storage battery (6) is connected to the micro-circulation pump (2); The sample preparation box (1) is provided with a charging interface (7) connected to the storage battery (6).

8. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 1, characterized in that: The sample preparation box (1) is provided with a lower storage tank (13) for placing a measuring cylinder (8), and a sealing cover (14) adapted to the cleaning sample preparation chamber (11).

9. The sample solution preparation device for tableware anionic synthetic detergent detection according to claim 8, characterized in that: It also includes a box cover (9) movably hinged to the sample preparation box (1); The box cover (9) is provided with an upper storage groove (91) adapted to the measuring cylinder (8), and a cover groove (92) adapted to the sealing cover (14).

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