Sampling device for food detection

Abstract

The utility model provides a sampling device for food detection, which is characterized in that a collection unit and a culture component are respectively arranged in a box body, the collection unit is used for collecting flora on the surface of tableware, a culture medium is arranged in the culture component and is used for culturing the flora, the culture component comprises at least two second test tubes, and a plurality of second bottom grooves are arranged in the box body and are communicated with the second test tubes. The bottom of each second test tube can be embedded into one second bottom groove, the second test tubes are filled with culture media, and second tube plugs are mounted at openings in the upper ends of the second test tubes. According to the sampling device for food detection, when the device is used for collecting chopstick samples, chopsticks to be collected can be directly placed in the first collecting assembly, the first collecting assembly can quantify the number of the chopsticks, the sampling length and perimeter of the chopsticks do not need to be measured, the detection efficiency is improved, and the detection time is shortened. Other tableware except the chopsticks can be collected through the second collecting assembly, the sheet-shaped test paper can be prevented from making contact with the outside, the pollution risk is reduced, and operation is easy.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of food detection, especially a sampling device for food detection. BACKGROUND

[0002] Tableware is a medium directly contacting with food, if the tableware is not clean, it may become a way of foodborne disease transmission. In recent years, according to the data of the announcement issued by the State Administration for Market Regulation, the pollution problem of tableware has been a disaster area of food sampling unqualified. The unqualified rate of tableware has been high, which has caused the safety hazard of catering food, has brought certain influence to the health of the people, and has put forward higher requirements to the supervision work.

[0003] Coliform group is an important index for judging the degree of fecal pollution and the health quality of tableware. As an indicator bacterium of fecal pollution, if coliform group is detected in tableware, it indicates that it may be directly or indirectly contaminated by feces, and also suggests that the possibility of being contaminated by enteropathogenic bacteria is larger. The detection of coliform group in tableware shows that its health condition cannot meet the most basic health requirements. Using tableware contaminated by coliform group is easy to cause vomiting, diarrhea and other symptoms, which endangers human health and safety.

[0004] At present, the method for detecting coliform group of tableware is 'National food safety standard disinfection tableware' (GB14934-2016), which is divided into fermentation method and paper sheet method, and the fermentation method is used as arbitration method and is applied more in laboratory. The 'National food safety supervision and inspection implementation details' requires that for tableware supervision and inspection, on-site sampling should be carried out according to GB 14934-2016. No matter chopsticks sample or other tableware, on-site surface microbial sampling needs multiple steps to transfer the disinfection swab to the culture medium for culture and detection, and in the transfer process, it is easy to cause the possibility of falling and easy to make the sampling personnel touch, which increases the risk of being contaminated. In addition, the sampling tool is multiple and complex, which is not conducive to on-site carrying and operation. SUMMARY

[0005] Therefore, the utility model aims at providing a sampling device for food detection to solve the problems of multiple and complex tools for tableware sampling in prior art, inconvenient carrying and inconvenient operation.

[0006] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] The utility model provides a sampling device for food detection, including box, collection unit and culture assembly are arranged in the box respectively, and collection unit is used for collecting the flora on the surface of tableware, and culture assembly is used for culturing flora, culture assembly includes at least two second test tubes, and a plurality of second bottom grooves are equipped in the box, and the bottom of each second test tube can be embedded in a second bottom groove, culture medium is filled in the second test tube, and the second tube plug is installed at the open upper end of the second test tube.

[0008] Further, the collection unit is a first collection assembly, the first collection assembly includes at least two first test tubes, and a plurality of first bottom grooves are provided in the box, the bottom of each first test tube can be embedded in a first bottom groove, a reagent is filled in the first test tube, and a first tube plug is installed at the open upper end of the first test tube.

[0009] Further, a reverse tube is arranged in each second test tube, and the culture medium can completely cover the reverse tube.

[0010] Further, a first suction tube is arranged in the box, which can transfer the reagent to the culture medium.

[0011] Further, a limiting ring is nested in the first test tube, the inner circle of the limiting ring is used to fix the circumference and length of a chopstick, and the reagent level is lower than the limiting ring.

[0012] Further, the collection unit is a second collection assembly, the second collection assembly includes a box body, a storage tank is arranged on the upper part of the box body, physiological saline is filled in the storage tank, a test paper cavity is arranged on the lower part of the box body, sheet-shaped test papers are stacked in the test paper cavity, the storage tank and the test paper cavity are connected through a water channel, and an on-off valve is arranged on the water channel, which is used to open and close the passage of the water channel.

[0013] Further, a plurality of test paper cavities are arranged from bottom to top on the lower part of the box body, the uppermost test paper cavity is connected to the storage tank through a water channel, the test paper cavities are connected through through holes, and a plurality of sheet-shaped test papers are stacked in each test paper cavity.

[0014] Further, the on-off valve is a press-type valve or a rotary valve.

[0015] Further, the on-off valve is a press-type valve, the on-off valve includes a sliding shaft, a flow hole is arranged on the sliding shaft, two sealing rings are arranged on the periphery of the sliding shaft, the flow hole is located between the two sealing rings, a mounting hole is arranged on the box body, the sliding shaft is slidingly connected to the mounting hole, the mounting hole is a blind hole, one end of the sliding shaft is elastically connected to the bottom of the mounting hole through a spring, and the other end of the sliding shaft is located outside the box body.

[0016] Further, one end of the sliding shaft is abutted to one end of the spring through a limiting shaft, and the limiting shaft has a polygonal structure in the peripheral contour, the limiting hole matched with the limiting shaft contour is arranged in the mounting hole, and the limiting shaft is slidingly connected in the limiting hole.

[0017] Further, the box is provided with a pair of tweezers for clamping the sheet-shaped test paper.

[0018] Compared with the prior art, the sampling device for food detection has the following beneficial effects:

[0019] (1) The sampling device for food detection can directly place the to-be-collected chopsticks into the collecting assembly, the collecting assembly can quantitatively collect the number of chopsticks, and the collecting assembly is filled with physiological saline, so that the chopsticks are shaken in the sterile physiological saline during collection, and the sampling length and circumference of the chopsticks do not need to be measured, thereby reducing the workload of the detection personnel and improving the detection efficiency.

[0020] (2) The sampling device for food detection can collect other tableware except chopsticks through the second collecting assembly, and the sterile physiological saline in the storage tank can directly wet the sheet-shaped test paper through the on-off valve, so that the operation is simple, contact with the outside world is avoided, the pollution risk is reduced, and the sampling of other tableware except chopsticks can be realized through the wet sheet-shaped test paper. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations given, describe and explain the present application, and do not limit the present application in any way. In the drawings:

[0022] Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations given, describe and explain the present application, and do not limit the present application in any way. In the drawings:

[0023] Figure 2 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations given, describe and explain the present application, and do not limit the present application in any way. In the drawings:

[0024] Figure 3 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations given, describe and explain the present application, and do not limit the present application in any way. In the drawings:

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1-box; 2-first collection assembly; 21-first test tube; 22-first tube plug; 23-limiting ring; 3-culture assembly; 31-second test tube; 32-second tube plug; 33-inverted tube; 4-second collection assembly; 41-box body; 42-tank; 43-test paper cavity; 44-on-off valve; 441-sliding shaft; 442-flow hole; 443-sealing ring; 444-spring; 445-limiting shaft; 5-first suction tube; 6-pair of tweezers. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] As Figures 1-3As shown, the sampling device for food detection includes a box body 1, a collection unit and a culture assembly 3 are arranged in the box body 1 respectively, the collection unit is used for collecting the flora on the surface of tableware, the culture assembly 3 is provided with a culture medium and is used for culturing the flora, the culture assembly 3 includes at least two second test tubes 31, 10 mL of double LST broth is put into the second test tube 3131 of the embodiment, a plurality of second bottom grooves are arranged in the box body 1, the bottom of each second test tube 31 can be embedded in one second bottom groove, the culture medium is filled in the second test tube 31, and a second tube plug 32 is installed at the open upper end of the second test tube 31, one inverted tube 33 is arranged in each second test tube 31 in an inverted manner, and the culture medium can completely cover the inverted tube 33.

[0032] The collection unit has various embodiments;

[0033] As shown, Figure 1 The collection unit is a first collection assembly 2, the first collection assembly 2 includes at least two first test tubes 21, a plurality of first bottom grooves are arranged in the box body 1, the bottom of each first test tube 21 can be embedded in one first bottom groove, a reagent is filled in the first test tube 21, and a first tube plug 22 is installed at the open upper end of the first test tube 21; a first suction tube 5 is arranged in the box body 1 and can transfer the reagent to the culture medium; a limiting ring 23 is nested in the first test tube 21, the inner circle of the limiting ring 23 is used for quantifying the circumference and length of chopsticks, and the liquid level of the reagent is lower than the limiting ring 23; when the device is used to collect chopstick samples, the chopsticks to be collected can be directly placed in the first collection assembly 2, the first collection assembly 2 can quantify the number of chopsticks, and physiological saline is filled in the collection assembly; when the chopsticks are shaken in the sterile physiological saline during collection, it is not necessary to measure the sampling length and circumference of the chopsticks, thereby reducing the workload of the detection personnel and improving the detection efficiency.

[0034] As shown, the sampling device for food detection includes a box body 1, a collection unit and a culture assembly 3 are arranged in the box body 1 respectively, the collection unit is used for collecting the flora on the surface of tableware, the culture assembly 3 is provided with a culture medium and is used for culturing the flora, the culture assembly 3 includes at least two second test tubes 31, 10 mL of double LST broth is put into the second test tube 3131 of the embodiment, a plurality of second bottom grooves are arranged in the box body 1, the bottom of each second test tube 31 can be embedded in one second bottom groove, the culture medium is filled in the second test tube 31, and a second tube plug 32 is installed at the open upper end of the second test tube 31, one inverted tube 33 is arranged in each second test tube 31 in an inverted manner, and the culture medium can completely cover the inverted tube 33.

[0035] As shown, Figure 2The collecting unit is a second collecting assembly 4, the second collecting assembly 4 comprises a box body 41, a storage tank 42 is arranged on the upper portion of the box body 41, physiological saline is filled in the storage tank 42, a test paper cavity 43 is arranged on the lower portion of the box body 41, sheet test papers are stacked in the test paper cavity 43, the storage tank 42 and the test paper cavity 43 are communicated through a water channel, and an on-off valve 44 is arranged on the water channel, the on-off valve 44 is used for opening and closing the passage of the water channel, and a pair of tweezers 6 is arranged in the box body 1, the pair of tweezers 6 is used for clamping the sheet test paper, after other tableware except chopsticks is wiped and sampled, the sheet test paper is placed in the culture medium in the second test tube 31 for culture, before the sheet test paper is clamped, the sterile physiological saline in the storage tank 42 can be directly soaked on the sheet test paper through the on-off valve 44, the operation is simple, contact with the outside world is avoided, and the pollution risk is reduced.

[0036] The box body 41 is provided with a plurality of test paper cavities 43 from bottom to top, the uppermost test paper cavity 43 is communicated to the storage tank 42 through a water channel, and the test paper cavities 43 are communicated through through holes.

[0037] The on-off valve 44 is any one of a press type valve or a rotary type valve in implementation, the on-off valve 44 comprises a sliding shaft 441, the sliding shaft 441 is provided with a flow hole 442, two sealing rings 443 are arranged on the periphery of the sliding shaft 441, the flow hole 442 is located between the two sealing rings 443, the box body 41 is provided with a mounting hole, the sliding shaft 441 is slidingly connected into the mounting hole, the mounting hole is a blind hole, one end of the sliding shaft 441 is elastically connected to the bottom of the mounting hole through a spring 444, and the other end of the sliding shaft 441 is located outside the box body 41.

[0038] In order to prevent the sliding shaft 441 from rotating in the mounting hole, one end of the sliding shaft 441 is abutted to one end of the spring 444 through a limiting shaft 445, and the periphery contour of the limiting shaft 445 is a polygonal structure, the mounting hole is provided with a limiting hole matched with the contour of the limiting shaft 445, and the limiting shaft 445 is slidingly connected in the limiting hole.

[0039] The above only describes preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sampling device for food testing, characterized in that: The device includes a box (1), which is equipped with a collection unit and a culture component (3). The collection unit is used to collect bacteria from the surface of tableware. The culture component (3) is equipped with a culture medium and is used to culture the bacteria. The culture component (3) includes at least two second test tubes (31). The box (1) is equipped with multiple second bottom grooves. The bottom of each second test tube (31) can be embedded in a second bottom groove. The second test tube (31) is filled with culture medium. A second tube plug (32) is installed at the open end of the second test tube (31).

2. The sampling device for food testing according to claim 1, characterized in that: Each second test tube (31) contains an inverted tube (33) that is completely covered by the culture medium.

3. The sampling device for food testing according to claim 1, characterized in that: The collection unit is the first collection component (2), which includes at least two first test tubes (21) and a plurality of first bottom grooves are provided in the box (1). The bottom of each first test tube (21) can be embedded in a first bottom groove. The first test tube (21) is filled with reagents, and a first tube plug (22) is installed at the open end of the first test tube (21).

4. The sampling device for food testing according to claim 3, characterized in that: A first pipette (5) is provided inside the box (1), which can transfer the reagent into the culture medium.

5. The sampling device for food testing according to claim 3, characterized in that: The inner ring of the first test tube (21) is nested with a limiting ring (23). The inner ring of the limiting ring (23) is used to measure the circumference and length of the chopsticks, and the reagent level is lower than the limiting ring (23).

6. The sampling device for food testing according to claim 1, characterized in that: The collection unit is the second collection component (4). The second collection component (4) includes a box (41). A storage tank (42) is provided on the upper part of the box (41). The storage tank (42) is filled with physiological saline. A test strip cavity (43) is provided on the lower part of the box (41). A sheet of test strips is stacked in the test strip cavity (43). The storage tank (42) and the test strip cavity (43) are connected by a water channel. An on / off valve (44) is provided on the water channel. The on / off valve (44) is used to open and close the passage of the water channel.

7. The sampling device for food testing according to claim 6, characterized in that: The lower part of the box (41) is provided with multiple test strip chambers (43) from bottom to top. The test strip chamber (43) at the top is connected to the storage tank (42) through a water channel. The test strip chambers (43) are connected to each other through holes. Several sheet-shaped test strips are stacked in each test strip chamber (43).

8. The sampling device for food testing according to claim 6, characterized in that: The on / off valve (44) is a push-button valve or a rotary valve.

9. The sampling device for food testing according to claim 8, characterized in that: The on / off valve (44) is a push-button valve. The on / off valve (44) includes a slide shaft (441), a flow hole (442) on the slide shaft (441), and two sealing rings (443) on the periphery of the slide shaft (441). The flow hole (442) is located between the two sealing rings (443). The housing (41) is provided with a mounting hole. The slide shaft (441) is slidably connected to the mounting hole. The mounting hole is a blind hole. One end of the slide shaft (441) is elastically connected to the bottom of the mounting hole by a spring (444). The other end of the slide shaft (441) is located outside the housing (41).

10. The sampling device for food testing according to claim 9, characterized in that: One end of the sliding shaft (441) abuts against one end of the spring (444) via the limiting shaft (445), and the outer contour of the limiting shaft (445) is a polygonal structure. The mounting hole has a limiting hole that matches the contour of the limiting shaft (445), and the limiting shaft (445) is slidably connected in the limiting hole.

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