Food sampling equipment for food safety detection

Abstract

The utility model discloses food sampling equipment for food safety detection, and relates to the technical field of food sampling, the food sampling equipment comprises a cleaning mechanism and a shell, a dropper for sampling is fixedly arranged in the shell, the dropper is provided with a pressing assembly for changing the internal volume of the dropper, and the pressing assembly is connected with the cleaning mechanism. The output end of the cleaning mechanism is provided with a flexible hose, the output end of the flexible hose is detachably connected with a cleaning valve, the cleaning valve is arranged at the top of the dropper, and cleaning liquid output by the cleaning mechanism cleans the inner side and the outer side of the dropper through the cleaning valve. During cleaning, cleaning liquid in the water tank can be pushed by airflow to flush into the flow dividing barrel, penetrates through the flow dividing holes and the liquid outlets, and impacts the side face of the lower end of the dropper along the elastic isolation sleeve under the action of the gathering pipe opening, so that the outer side of the lower end of the dropper is flushed. Meanwhile, water flow can penetrate through the movable flow closing plate and the fixed flow closing plate to flush the interior of the dropper, and the interior of the dropper is flushed.

Description

Technical Field

[0001] This utility model relates to the field of food sampling technology, specifically to a food sampling device for food safety testing. Background Technology

[0002] Food sampling refers to the process of selecting and obtaining representative samples from a batch or lot of food, following specific methods and procedures, in order to assess the quality, safety, or other characteristics of food. This process must ensure that the samples accurately reflect the condition of the entire batch of food and avoid biases caused by improper sampling.

[0003] When testing solid foods such as milk powder, additives, and solid beverages, it is usually necessary to convert them into a liquid form for testing. Typically, a certain amount of the solid food is first placed in a container, and an appropriate amount of purified water is added. The mixture is then thoroughly stirred or heated until completely dissolved, forming a homogeneous liquid sample. Subsequently, a clean dropper is gently inserted into the liquid, and a certain amount of liquid sample is slowly drawn up. The sample in the dropper is then used for subsequent chemical composition analysis, microbiological testing, etc., to ensure the accuracy and validity of the test results.

[0004] The shortcomings of the existing technical solutions are as follows: In the process of solid food testing, after the dropper is used, it needs to be manually and repeatedly rinsed with clean water to ensure it is clean and free of contamination. If the rinsing is not thorough, the sample liquid remaining in the dropper may adversely affect the next test. More problematic is that when the outer wall of the dropper is contaminated with a highly viscous sample liquid, the above-mentioned rinsing methods are often insufficient to completely remove it, thus causing many inconveniences to the testing work. Utility Model Content

[0005] The purpose of this invention is to provide a food sampling device for food safety testing, in order to solve the technical problem that in the prior art, when the outer wall of the dropper is contaminated with a highly viscous sample liquid, it is often difficult to completely remove it by repeatedly rinsing with clean water, which brings many inconveniences to the testing work.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A food sampling device for food safety testing includes a cleaning mechanism and a housing. A dropper for sampling is fixedly installed inside the housing. The dropper is equipped with a pressing component for changing the internal volume of the dropper. A flexible hose is provided at the output end of the cleaning mechanism. A cleaning valve is detachably connected to the output end of the flexible hose. The cleaning valve is located at the top of the dropper. The cleaning liquid output by the cleaning mechanism cleans the inside and outside of the dropper through the cleaning valve.

[0008] As a further embodiment of this utility model: the cleaning mechanism includes an air pump for conveying gas, a water tank for conveying liquid, and a housing for fixing the air pump and the water tank. The output end of the air pump is fixedly connected to a connecting pipe, and the output end of the water tank is fixedly provided with an electric valve. The electric valve is connected to the connecting pipe, and the output end of the connecting pipe is connected to a flexible hose.

[0009] As a further embodiment of this utility model: multiple sets of liquid outlets penetrating the side wall of the dropper are equidistantly arranged on the upper side of the dropper. The distance between two adjacent sets of liquid outlets is greater than the lateral width of a set of liquid outlets. The cleaning valve includes a rotating sleeve rotatably disposed on the outer side of the top of the dropper. A flow divider is coaxially fixedly connected to the inner side of the rotating sleeve. The flow divider is inserted into the top of the dropper. The upper end wall of the dropper is located outside the flow divider and inside the rotating sleeve. Flow divider holes adapted to the positions of the liquid outlets are equidistantly arranged around the flow divider. A movable flow-closing plate is fixedly disposed at the bottom of the flow divider. At least one set of openings is opened on the movable flow-closing plate. A fixed flow-closing plate that cooperates with the movable flow-closing plate is fixedly disposed inside the dropper. At least one set of openings is opened on the fixed flow-closing plate. The area of ​​the opening portion on the movable flow-closing plate is not greater than the area of ​​the blocking portion on the fixed flow-closing plate, and the positions of the opening portion and the blocking portion correspond to each other.

[0010] As a further embodiment of this utility model: an elastic isolation sleeve that serves as a flow guide is fixedly provided on the inner side of the upper end of the outer shell. The elastic isolation sleeve is located outside the dropper and extends downward along the side of the dropper. The lower end of the elastic isolation sleeve is fixedly connected to the lower end of the outer shell.

[0011] As a further embodiment of this utility model: the pressing component includes a pressure-receiving opening on one side of the dropper, an inner sleeve for bearing external pressure is provided on the inner side of the dropper at a position corresponding to the pressure-receiving opening, and a pressing opening is provided on the outer shell at a position corresponding to the pressure-receiving opening.

[0012] As a further embodiment of this utility model: a pressing block is slidably fitted inside the pressing opening.

[0013] As a further embodiment of this utility model: pressing limit plates are fixedly provided on both sides of the pressing block to prevent the user from pressing too hard and causing damage to the inner wall of the dropper; and extrusion limit plates are fixedly provided on the top and bottom of the pressing block to prevent the pressing block from being squeezed out of the outer shell by the inner sleeve and the elastic isolation sleeve.

[0014] As a further embodiment of this utility model: the bottom of the outer shell is provided with a converging nozzle with its edge inclined inward for guiding the cleaning fluid.

[0015] As a further embodiment of this utility model, a hanging bracket is provided on one side of the box.

[0016] As a further embodiment of this utility model, a layer of silicone is fixedly provided on the contact surface between the diverter and the inner wall of the top of the dropper.

[0017] The beneficial effects of this utility model are:

[0018] 1. During cleaning, this invention involves starting the air pump and opening the electric valve. The air pump delivers a high-speed airflow into the connecting pipe. The cleaning fluid inside the water tank enters the connecting pipe under gravity and is propelled by the airflow into the flexible hose. It then enters the distribution cylinder, passes through the distribution hole and outlet, and impacts the lower side of the dropper under the action of the converging pipe opening along the elastic isolation sleeve, thus rinsing the outer side of the lower end of the dropper. Simultaneously, the water flow passes through the movable and fixed flow-closing plates, flushing the inside of the dropper. The high-speed airflow drives the cleaning fluid to clean the lower end of the dropper, improving the cleaning effect and efficiency.

[0019] 2. When using this utility model, after cleaning, close the electric valve and use a high-speed airflow to dry the water droplets on the inner and outer surfaces of the dropper, so as to avoid the accumulation of cleaning liquid inside or on the surface of the dropper, which would affect the sampling quality of the next time. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0023] Figure 3 This is a schematic diagram of the longitudinal section structure of the outer shell and the dropper of this utility model;

[0024] Figure 4 This is a schematic diagram of the dropper structure of this utility model;

[0025] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Cleaning mechanism; 101. Air pump; 102. Connecting pipe; 103. Box body; 104. Water tank; 105. Electric valve; 2. Outer shell; 201. Pressing opening; 202. Converging pipe opening; 3. Elastic isolation sleeve; 4. Dropper; 401. Pressurized opening; 402. Inner sleeve; 403. Liquid outlet; 5. Suspension bracket; 6. Pressing block; 601. Extrusion limiting plate; 602. Pressing limiting plate; 7. Flexible hose; 8. Cleaning valve; 801. Rotating sleeve; 802. Diverter cylinder; 803. Diverter orifice; 804. Movable flow-closing plate; 805. Fixed flow-closing plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-5 As shown, a food sampling device for food safety testing includes a cleaning mechanism 1 and a housing 2. A dropper 4 for sampling is fixedly installed inside the housing 2, and a pressing component is provided on the dropper 4 to change its internal volume. Figure 4 As shown, the pressing assembly includes a pressure-receiving opening 401 on one side of the dropper 4. An inner sleeve 402, corresponding to the pressure-receiving opening 401, is provided inside the dropper 4 to withstand external pressure. The inner sleeve 402 can be made of elastic rubber to ensure elastic deformation under external pressure. By pressing the inner sleeve 402, the internal volume of the dropper 4 is reduced. When the inner sleeve 402 is released, it pops outward, creating a negative pressure inside the dropper 4 and drawing liquid into it. A pressing opening 201 is provided on the outer casing 2 at a position corresponding to the pressure-receiving opening 401. Figure 4 As shown, a pressing block 6 is slidably fitted inside the pressing opening 201. Pressing limit plates 602 are fixedly installed on both sides of the pressing block 6 to prevent excessive pressing by the user from damaging the inner wall of the dropper 4. Extrusion limit plates 601 are fixedly installed at the top and bottom of the pressing block 6 to prevent the pressing block 6 from being squeezed out of the outer shell 2 by the inner sleeve 402. The position of the pressing block 6 is maintained by the inner sleeve 402, the pressing limit plates 602, and the extrusion limit plates 601.

[0029] like Figure 2As shown, the cleaning mechanism 1 includes an air pump 101 for conveying gas, a water tank 104 for conveying liquid, and a housing 103 for fixing the air pump 101 and the water tank 104. A connecting pipe 102 is fixedly connected to the output end of the air pump 101, and an electric valve 105 is fixedly installed at the output end of the water tank 104. The electric valve 105 is connected to the connecting pipe 102, and a flexible hose 7 is connected to the output end of the connecting pipe 102. The water tank 104 is positioned above the connecting pipe 102, allowing the cleaning liquid to enter the connecting pipe 102 under gravity. The air pump 101 delivers a high-speed airflow into the connecting pipe 102. After the electric valve 105 is opened, the cleaning liquid inside the water tank 104 enters the connecting pipe 102 under gravity and is propelled by the airflow into the flexible hose 7, thus cleaning the drip tube 4.

[0030] The flexible hose 7 has a detachable connection at its output end to a cleaning valve 8, such as... Figure 4 As shown, multiple sets of liquid outlets 403 are equidistantly arranged around the upper side of the dropper 4, penetrating the side wall of the dropper 4. The distance between two adjacent sets of liquid outlets 403 is greater than the lateral width of a set of liquid outlets 403. The cleaning valve 8 includes a rotating sleeve 801 rotatably disposed on the outer side of the top of the dropper 4, as shown. Figure 3 As shown, a diverter cylinder 802 is coaxially fixedly connected to the inner side of the rotating sleeve 801. The diverter cylinder 802 is inserted into the top of the dropper 4. The upper end wall of the dropper 4 is located outside the diverter cylinder 802 and inside the rotating sleeve 801. A layer of silicone is fixedly provided on the contact surface between the diverter cylinder 802 and the inner wall of the top of the dropper 4 to increase friction and also to provide a seal. Diverter holes 803 are equidistantly arranged around the diverter cylinder 802, which are adapted to the position of the liquid outlet 403. When the diverter cylinder 802 is rotated, when the diverter hole 803 coincides with the liquid outlet 403, the inside of the dropper 4 is connected to the external space, which facilitates the outflow of cleaning fluid. A movable flow-closing plate 804 is fixedly installed at the bottom of the flow divider 802. The movable flow-closing plate 804 has at least one set of openings. A fixed flow-closing plate 805, which cooperates with the movable flow-closing plate 804, is fixedly installed inside the dropper 4. The fixed flow-closing plate 805 also has at least one set of openings. The area of ​​the opening on the movable flow-closing plate 804 is not greater than the area of ​​the blocking portion on the fixed flow-closing plate 805, and the opening and blocking portions are positioned correspondingly. When the opening on the movable flow-closing plate 804 is aligned with the blocking portion on the fixed flow-closing plate 805, the dropper 4 is isolated from the interior of the flow divider 802. When the opening on the movable flow-closing plate 804 is aligned with the opening on the fixed flow-closing plate 805, the dropper 4 is connected to the interior of the flow divider 802.

[0031] An elastic isolation sleeve 3, serving as a flow guide, is fixedly installed on the inner side of the upper end of the outer casing 2. The elastic isolation sleeve 3 is located outside the dropper 4 and extends downwards along the side of the dropper 4, isolating the upper end of the dropper 4 from the press opening 201 to prevent cleaning fluid from leaking out of the press opening 201 and affecting the user experience. The lower end of the elastic isolation sleeve 3 is fixedly connected to the lower end of the outer casing 2. A converging nozzle 202, with its edges curved inwards, is provided at the bottom of the outer casing 2 to guide the cleaning fluid. The converging nozzle 202 facilitates the rinsing of the outside of the dropper 4.

[0032] A hanging bracket 5 is provided on one side of the box body 103. During cleaning, the outer shell 2 can be hung on the hanging bracket 5 for automatic cleaning, which is convenient for taking it out and putting it in.

[0033] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will now be explained in conjunction with specific application scenarios:

[0034] When in use, the pressing block 6 can be pressed, which squeezes the elastic isolation sleeve 3 and the inner sleeve 402, reducing the internal volume of the dropper 4 and thus expelling some of the internal air. Then, the pressing block 6 is released, and the elastic isolation sleeve 3 and the inner sleeve 402 reset, pushing the pressing block 6 to reset, which creates a negative pressure inside the dropper 4, drawing the liquid into the dropper 4 to achieve the sampling operation.

[0035] During cleaning, the rotating sleeve 801 can be rotated, which drives the flow divider 802 to rotate. When the opening on the movable flow-closing plate 804 is aligned with the opening on the fixed flow-closing plate 805, the dropper 4 is in communication with the inside of the flow divider 802. At the same time, when the flow divider 803 coincides with the liquid outlet 403, the inside of the dropper 4 is connected to the internal space of the elastic isolation sleeve 3.

[0036] Start the air pump 101 and open the electric valve 105. The air pump 101 delivers a high-speed airflow into the connecting pipe 102. The cleaning fluid inside the water tank 104 enters the connecting pipe 102 under gravity and is propelled by the airflow into the flexible hose 7. It then enters the distribution cylinder 802, passes through the distribution hole 803 and the outlet 403, and impacts the lower side of the dropper 4 along the elastic isolation sleeve 3 under the action of the converging pipe 202, thus rinsing the outer side of the lower end of the dropper 4. At the same time, the water flow passes through the movable flow-closing plate 804 and the fixed flow-closing plate 805, flushing the inside of the dropper 4, thus rinsing its interior. The high-speed airflow drives the cleaning fluid to clean the lower end of the dropper 4, improving the cleaning effect and efficiency.

[0037] After cleaning, close the electric valve 105 and use a high-speed airflow to dry the water droplets on the inner and outer surfaces of the dropper 4. After drying, rotate the flow divider 802 so that the opening on the movable flow-closing plate 804 is aligned with the blocking part on the fixed flow-closing plate 805. This isolates the dropper 4 from the inside of the flow divider 802, and the flow divider orifice 803 is offset from the liquid outlet 403, ensuring the isolation of the inside of the dropper 4 from the outside environment, thus facilitating the sampling function of the dropper 4.

[0038] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A food sampling apparatus for food safety testing, characterized by, The utility model provides a cleaning mechanism (1) and shell (2) are included, the inside fixed setting of shell (2) is used for the dropper (4) of sampling, be provided with the pressing assembly for changing the inside volume of dropper (4) on dropper (4), the output of cleaning mechanism (1) is provided with flexible hose (7), the output of flexible hose (7) is detachably connected with cleaning valve (8), cleaning valve (8) is set at the top of dropper (4), the cleaning liquid of cleaning mechanism (1) output is cleaned to the inside and outside of dropper (4) through cleaning valve (8).

2. The food sampling device for food safety testing of claim 1, wherein, The cleaning mechanism (1) includes a gas pump (101) for delivering gas, a water tank (104) for delivering liquid, and a box body (103) for fixing the gas pump (101) and the water tank (104). The output end of the gas pump (101) is fixedly connected with a connecting pipe (102). The output end of the water tank (104) is fixedly provided with an electric valve (105) which is in communication with the connecting pipe (102). The output end of the connecting pipe (102) is in communication with the flexible hose (7).

3. The food sampling device for food safety testing of claim 2, wherein, A plurality of groups of liquid outlets (403) are equidistantly arranged on the upper side of the dropper (4) and penetrate the side wall of the dropper (4). The distance between the two adjacent groups of liquid outlets (403) is greater than the transverse width of one group of liquid outlets (403). The cleaning valve (8) includes a rotating sleeve (801) which is rotatably arranged on the outside of the top of the dropper (4). The inside of the rotating sleeve (801) is fixedly connected with a shunt cylinder (802) which is inserted into the inside of the top of the dropper (4). The upper end of the dropper (4) is located outside the shunt cylinder (802) and inside the rotating sleeve (801). A plurality of groups of shunt holes (803) are equidistantly arranged around the shunt cylinder (802) and are matched with the positions of the liquid outlets (403). The bottom of the shunt cylinder (802) is fixedly provided with a movable flow-blocking plate (804) which is provided with at least one group of openings. The inside of the dropper (4) is fixedly provided with a fixed flow-blocking plate (805) which is matched with the movable flow-blocking plate (804). The fixed flow-blocking plate (805) is provided with at least one group of openings. The area of the opening part of the movable flow-blocking plate (804) is not greater than the area of the shielding part of the fixed flow-blocking plate (805), and the opening part and the shielding part are located in corresponding positions.

4. The food sampling device for food safety testing of claim 3, wherein, The upper inside of the shell (2) is fixedly provided with an elastic isolation sleeve (3) which plays a guiding role. The elastic isolation sleeve (3) is located outside the dropper (4) and extends downward along the side of the dropper (4). The lower end of the elastic isolation sleeve (3) is fixedly connected with the lower end of the shell (2).

5. The food sampling device for food safety testing of claim 4, wherein, The pressing assembly includes a pressure receiving opening (401) which is arranged on one side of the dropper (4). The inside of the dropper (4) is provided with an inner sleeve (402) which is matched with the corresponding position of the pressure receiving opening (401) and is used for bearing external pressure. The shell (2) is provided with a pressing opening (201) at the position corresponding to the pressure receiving opening (401).

6. The food sampling device for food safety testing of claim 5, wherein, The pressing opening (201) is internally slidably fitted with a pressing block (6).

7. The food sampling device for food safety testing of claim 6, wherein, The pressing block (6) is fixedly provided with pressing limiting plates (602) on both sides for avoiding damage of the inner wall of the dropper (4) caused by excessive pressing of the user, and the top and bottom of the pressing block (6) are fixedly provided with extrusion limiting plates (601) for avoiding extrusion of the pressing block (6) out of the shell (2) by the inner sleeve (402) and the elastic isolation sleeve (3).

8. The food sampling device for food safety testing of claim 4, wherein, The shell (2) is provided at the bottom with a converging pipe opening (202) with an inwardly inclined and curved edge for guiding the cleaning liquid.

9. The food sampling device for food safety testing of claim 2, wherein, One side of the box body (103) is provided with a hanging support (5).

10. The food sampling device for food safety testing of claim 3, wherein, The shunt cylinder (802) is fixedly provided with a layer of silica gel on the contact surface with the top inner wall of the dropper (4).

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