Rapid quantitative detection instrument for mycotoxin

Abstract

The utility model discloses a fungaltoxin rapid quantitative detector, including base, moving disk, rotating disk and slide bar, the one side of base top is fixed with the support plate, the front part of support plate is movably provided with the rotating shaft, the central position of base top is movably provided with the fixed rod, the fixed rod and the rotating shaft cooperate with each other, and the slide bar is fixed on the base top. The rotating shaft penetrates through the supporting plate and can be connected with a grooved wheel, a driving motor is fixed to the bottom of the supporting plate, the output end of the driving motor penetrates through the supporting plate and is connected with a drive plate, and the drive plate is matched with the grooved wheel. According to the utility model, the driving plate and the test paper are arranged between the motor transmission structures, and the driving plate and the grooved wheel intermittently move, so that the rotating plate accurately rotates, and the sample liquid can be accurately dropped into the diluent.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative detectors, in particular to a rapid quantitative detector for fungal toxins. Background Art

[0002] Mycotoxins are toxic metabolic products produced by toxin-producing fungi under suitable environmental conditions. They are widely present in grain, oil, food and feed, and are one of the most dangerous naturally occurring food contaminants. According to estimates by the Food and Agriculture Organization of the United Nations, about 25% of agricultural products in the world are contaminated by mycotoxins each year, and the annual loss of grain and food reaches 1 billion tons. In my country, the pollution situation of mycotoxins is also not optimistic. Mycotoxin pollution has even become one of the important limiting factors for the sustainable development of agriculture, seriously threatening the health of humans and animals. The detection method of the content of mycotoxins in food has always been the key to restricting the progress of research on mycotoxins and human diseases. The existing typical detection methods for mycotoxins include: high performance liquid chromatography, thin layer chromatography, capillary electrophoresis, liquid chromatography-mass spectrometry, etc. With the advancement of science and technology, various other detection methods have also been derived, such as photochemical derivatization □ high pressure liquid chromatography, electrochemical derivatization □ high pressure liquid chromatography, fluorescence spectrometry, liquid chromatography □ triple quadrupole mass spectrometry, etc.

[0003] An existing rapid quantitative detector for mycotoxins, such as a rapid quantitative detector for mycotoxins described in the patent with announcement number CN 219179368 U, belongs to the technical field of mycotoxins detection. The rapid quantitative detector for mycotoxins includes a detection platform, a fixed arm is fixedly connected to one side of the detection platform, a first motor is fixedly connected to the top of the fixed arm, a rotating shaft is fixedly connected to the output shaft of the first motor, a support column is fixedly connected to the middle of the detection platform, the support column is rotatably connected to the rotating shaft, a centrifugal disk is fixedly connected to the rotating shaft, both ends of the centrifugal disk are fixedly connected to mounting cylinders, a first test tube and a second test tube are respectively arranged inside the mounting cylinder, and when in use, the first test tube and the second test tube can be rotated by the motor to rotate the centrifugal disk The food sample and the extract in the second test tube are fully mixed, and then the mixed sample liquid can flow into the third test tube on the sample mixing plate due to gravity; the sample liquid is fully mixed with sample diluents of different types of toxins in the second test tube, and then the mixed liquid sample to be tested drips through the third liquid outlet at the bottom of the third test tube onto the test paper strip on the testing table for testing. However, a motor is used to drive the centrifugal disk to rotate so that the sample liquid drips into the diluent, and the motor drives the centrifugal disk to rotate with low accuracy. There will be inertia when the motor stops gripping, which may cause the sample liquid to not drip into the diluent, thereby affecting subsequent testing. Utility Model Content

[0004] The purpose of the utility model is to provide a rapid quantitative detection instrument for mycotoxins to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid quantitative detector for fungal toxins, comprising a base, a movable disk, a rotating disk and a sliding rod, a support plate is fixed to one side of the top of the base, a rotating shaft is movably provided at the front of the support plate, a fixed rod is movably provided at the center position of the top of the base, the fixed rod and the rotating shaft cooperate with each other, the rotating shaft passes through the support plate and can be connected to a groove wheel, a driving motor is fixed to the bottom of the support plate, the output end of the driving motor passes through the support plate and is connected to a dial, and the dial cooperates with the groove wheel.

[0006] Preferably, test strips are placed around the top of the base, six groups of the test strips are arranged on the base, and the test strips are symmetrical about the center position of the base.

[0007] Preferably, a fixed plate is fixed on the fixed rod, a spring is connected to the bottom of the fixed plate, a movable plate is connected to the bottom of the spring, and a vibration motor is fixed on the movable plate.

[0008] Preferably, a sliding rod is connected to the movable plate, one end of the sliding rod passes through the fixed plate and extends out, and four groups of the sliding rod are arranged on the movable plate.

[0009] Preferably, the movable plate is provided with a through hole, and the first test tubes are placed in the through hole of the movable plate, and six groups of the first test tubes are arranged on the movable plate.

[0010] Preferably, a first fixed ring is fixed on the top of the movable disk, a first screw is movably provided in the first fixed ring, a first clamp is movably provided at one end of the first screw, the first clamp is clamped to the outside of the first test tube, one end of the first screw is connected to a first rotating member, and a first solenoid valve is connected to the bottom of the first test tube.

[0011] Preferably, the rotating disk is also provided with a through hole, a second test tube is placed in the through hole in the rotating disk, a second solenoid valve is connected to the bottom of the second test tube, and two groups of the second test tube are provided on the rotating disk.

[0012] Preferably, a second fixing ring is fixed on the top of the rotating disk, second screws are movably provided on both sides inside the second fixing ring, a second clamping piece is movably provided at one end of the second screw, the second clamping piece is clamped to the outside of the second test tube, and one end of the second screw is connected to a second rotating piece.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the rapid quantitative detection instrument for mycotoxins solves the problems raised in the above background technology and has a reasonable structure and the following advantages:

[0014] (1) The device has high precision by providing a dial, a groove wheel and a driving motor, so that the sample liquid can be accurately dripped into the diluent. The existing device is driven by a motor, resulting in low precision. Therefore, a dial and a test paper are provided between the motor transmission structure, and the dial and the groove wheel are intermittently moved to make the rotating disk rotate accurately, so that the sample liquid can be accurately dripped into the diluent.

[0015] (2) The traditional cam vibration structure is changed to a vibration motor, which optimizes the structure and saves costs. When the vibration motor is started, the movable plate can vibrate, which is easy to operate, has a simple structure, and is not prone to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 It is a top view of the three-dimensional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 5 It is a front view structural schematic diagram of the utility model.

[0021] In the figure: 1, base; 2, test paper; 3, first test tube; 4, first solenoid valve; 5, moving disk; 6, first fixed ring; 7, first clamping member; 8, first rotating member; 9, first screw; 10, spring; 11, vibration motor; 12, slide bar; 13, fixed disk; 14, rotating disk; 15, second test tube; 16, second fixed ring; 17, second rotating member; 18, second screw; 19, second clamping member; 20, rotating shaft; 21, fixed rod; 22, support plate; 23, dial; 24, groove wheel; 25, drive motor; 26, second solenoid valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a rapid quantitative detection instrument for mycotoxins, comprising a base 1, a movable disk 5, a rotating disk 14 and a sliding rod 12, a support plate 22 is fixed to one side of the top of the base 1, a rotating shaft 20 is movably provided at the front of the support plate 22, a fixed rod 21 is movably provided at the center position of the top of the base 1, the fixed rod 21 and the rotating shaft 20 cooperate with each other, the rotating shaft 20 passes through the support plate 22 and can be connected to a groove wheel 24, a driving motor 25 is fixed to the bottom of the support plate 22, the output end of the driving motor 25 passes through the support plate 22 and is connected to a dial 23, and the dial 23 and the groove wheel 24 cooperate with each other;

[0024] A dial 23 and a test strip 2 are arranged between the motor transmission structure, and the dial 23 and the groove wheel 24 are intermittently moved to make the rotating disk 14 rotate accurately, so that the sample liquid can be accurately dripped into the diluent;

[0025] Test strips 2 are placed around the top of the base 1. Six groups of test strips 2 are arranged on the base 1. The test strips 2 are symmetrical about the center of the base 1. A fixed plate 13 is fixed on the fixed rod 21. A spring 10 is connected to the bottom of the fixed plate 13. A movable plate 5 is connected to the bottom of the spring 10. A vibration motor 11 is fixed to the movable plate 5.

[0026] By starting the vibration motor 11, the vibration motor 11 causes the moving plate 5 to vibrate, thereby mixing the liquid in the first test tube 3;

[0027] The movable plate 5 is connected with a slide bar 12, one end of which passes through the fixed plate 13 and extends out, and four groups of slide bars 12 are arranged on the movable plate 5. A through hole is arranged in the movable plate 5, and a first test tube 3 is placed in the through hole of the movable plate 5. Six groups of the first test tube 3 are arranged on the movable plate 5;

[0028] A first fixing ring 6 is fixed on the top of the movable plate 5, a first screw 9 is movably provided in the first fixing ring 6, a first clamping member 7 is movably provided at one end of the first screw 9, the first clamping member 7 is clamped to the outside of the first test tube 3, a first rotating member 8 is connected to one end of the first screw 9, and a first solenoid valve 4 is connected to the bottom of the first test tube 3;

[0029] The rotating disk 14 is also provided with a through hole, in which a second test tube 15 is placed, and a second solenoid valve 26 is connected to the bottom of the second test tube 15. Two groups of second test tubes 15 are provided on the rotating disk 14, and a second fixing ring 16 is fixed to the top of the rotating disk 14. Second screws 18 are movably provided on both sides of the second fixing ring 16, and a second clamping member 19 is movably provided at one end of the second screw 18. The second clamping member 19 is clamped to the outside of the second test tube 15, and a second rotating member 17 is connected to one end of the second screw 18;

[0030] When the embodiment of the present application is used, the second test tube 15 is inserted into the through hole in the rotating disk 14, and then the second rotating member 17 is rotated, the second rotating member 17 will rotate the second screw 18, and then the second clamping member 19 is clamped on the second test tube 15, and the second test tube 15 is provided with two groups of samples with different concentrations. Similarly, the first test tube 3 is inserted into the through hole in the moving disk 5, and then the first rotating member 8 is started, the first rotating member 8 rotates the first screw 9, and the first screw 9 clamps the first clamping member 7 to the outside of the first test tube 3, and each first test tube 3 is placed with dilute samples of different concentrations. The liquid is released, and then the liquid in the second test tube 15 is dripped into the first test tube 3 by controlling the second solenoid valve 26. Then, the vibration motor 11 is started, and the vibration motor 11 makes the movable disk 5 vibrate, so that the liquid in the first test tube 3 is mixed. By starting the first solenoid valve 4, the first solenoid valve 4 drips the liquid into the test paper 2, so as to observe the color change of the test paper 2. By starting the drive motor 25, the drive motor 25 rotates the dial 23, and the dial 23 rotates the groove wheel 24, so that the rotating shaft 20 drives the rotating disk 14 to rotate, so that the sample is dripped into different dilutions.

Claims

1. A rapid quantitative detection instrument for mycotoxins, characterized in that: The invention comprises a base (1), a movable plate (5), a rotating plate (14) and a sliding rod (12); a support plate (22) is fixed to one side of the top of the base (1); a rotating shaft (20) is movably arranged at the front of the support plate (22); a fixed rod (21) is movably arranged at the center of the top of the base (1); the fixed rod (21) and the rotating shaft (20) cooperate with each other; the rotating shaft (20) passes through the support plate (22) and can be connected to a groove wheel (24); a driving motor (25) is fixed to the bottom of the support plate (22); the output end of the driving motor (25) passes through the support plate (22) and is connected to a dial (23); the dial (23) and the groove wheel (24) cooperate with each other.

2. A rapid quantitative mycotoxin detector according to claim 1, characterized in that: Test strips (2) are placed around the top of the base (1), six groups of the test strips (2) are arranged on the base (1), and the test strips (2) are symmetrical about the center of the base (1).

3. A rapid quantitative mycotoxin detector according to claim 1, characterized in that: A fixed plate (13) is fixed on the fixed rod (21), a spring (10) is connected to the bottom of the fixed plate (13), a movable plate (5) is connected to the bottom of the spring (10), and a vibration motor (11) is fixed on the movable plate (5).

4. A rapid quantitative mycotoxin detector according to claim 3, characterized in that: The movable plate (5) is connected with a slide bar (12), one end of which passes through the fixed plate (13) and extends out, and four groups of the slide bars (12) are arranged on the movable plate (5).

5. A rapid quantitative mycotoxin detector according to claim 4, characterized in that: The movable plate (5) is provided with a through hole, and a first test tube (3) is placed in the through hole of the movable plate (5). Six groups of the first test tubes (3) are arranged on the movable plate (5).

6. A rapid quantitative mycotoxin detector according to claim 4, characterized in that: A first fixing ring (6) is fixed on the top of the movable plate (5), a first screw rod (9) is movably arranged in the first fixing ring (6), a first clamping member (7) is movably arranged at one end of the first screw rod (9), the first clamping member (7) is clamped to the outside of the first test tube (3), one end of the first screw rod (9) is connected to a first rotating member (8), and the bottom of the first test tube (3) is connected to a first solenoid valve (4).

7. A rapid quantitative mycotoxin detector according to claim 1, characterized in that: The rotating disk (14) is also provided with a through hole, a second test tube (15) is placed in the through hole in the rotating disk (14), a second solenoid valve (26) is connected to the bottom of the second test tube (15), and two groups of the second test tube (15) are provided on the rotating disk (14).

8. A rapid quantitative mycotoxin detector according to claim 1, characterized in that: A second fixing ring (16) is fixed on the top of the rotating disk (14), and second screws (18) are movably provided on both sides of the interior of the second fixing ring (16). A second clamping member (19) is movably provided at one end of the second screw (18), and the second clamping member (19) is clamped to the outside of the second test tube (15), and one end of the second screw (18) is connected to the second rotating member (17).

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