Rapid detector for gluten-containing food

Abstract

The utility model provides a rapid detector for gluten-containing food, and relates to the field of food detection. The gluten-containing food rapid detector comprises a base and a detector body installed on the base, and further comprises a sample treatment cabin located above the base, a feeding port, a smashing area, a grinding area and a reaction area are arranged in the sample treatment cabin, and a rotating shaft is rotationally installed in the sample treatment cabin; a blade for crushing food is fixedly mounted on the outer side of the rotating shaft, a grinding ball for grinding the food is mounted in the grinding area, an arc-shaped filter tank is arranged in the grinding area, and a rotating rod for rotating is rotationally connected to the interior of the sample treatment cabin; according to the gluten-containing food rapid detector, the sample treatment cabin and the channel are integrally arranged, in the process of crushing, grinding, mixing and conveying a sample to the detector body, the sample does not need to be transferred, microorganisms and dust particles in the air are prevented from being mixed into the sample, and therefore the situation that the detection reliability is easily affected due to the fact that the sample is polluted is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to food detection field, concretely is a kind of quick detector for food containing gluten. BACKGROUND

[0002] Food detection refers to the process of analyzing and measuring various aspects of food according to relevant standards and specifications to determine whether the food meets safety, quality and other requirements. Through detection, harmful microorganisms, heavy metals, pesticide residues, veterinary drug residues, illegal additives and other harmful substances in food can be detected in a timely manner to prevent non-compliant food from entering the market, thereby protecting the health of consumers and reducing the risk of foodborne diseases. For gluten-containing food detection, a detector is usually used. In the raw material procurement link, it can quickly detect raw materials such as wheat, barley and rye that may contain gluten to ensure the quality of raw materials. During the production process, real-time detection of semi-finished and finished products is carried out to monitor product quality, prevent gluten cross-contamination and ensure the quality of gluten-free products. Gluten is a complex of proteins mainly found in wheat, barley, rye and other cereals. During the detection process, gluten proteins are used as antigens. First, specific antibodies against gluten proteins are immobilized on the surface of a solid support (such as a microplate, test strip, etc.) in the detector. These antibodies are prepared through bioengineering technology and can specifically recognize and bind to specific epitopes of gluten proteins. When a food sample containing gluten is processed and added to the detection system, the gluten proteins (antigens) in the sample will specifically bind to the antibodies immobilized on the solid support. This binding has high selectivity and affinity, and only gluten proteins can bind to the corresponding antibodies, while other substances do not interfere with this process.

[0003] Traditional detectors have sample processing and reaction areas set independently. Workers need to use multiple pipetting tools and containers to transfer the processed sample from the sample processing area to the reaction area. If the range adjustment of the pipette is not accurate, or there are air bubbles during the process of sucking and releasing the sample solution, the actual amount of sample participating in the reaction will not match the expected value, which will interfere with the accuracy of the detection results. Moreover, the sample needs to be exposed to the external environment for transfer. During this process, microorganisms, dust particles and other pollutants in the air can easily contaminate the sample, affecting the reliability of the detection. UTILITY MODEL CONTENT

[0004] To overcome the shortcomings of the prior art, the utility model provides a quick detector for food containing gluten, which solves the problems raised in the above background.

[0005] In order to achieve the above object, the utility model discloses a kind of bran-containing food rapid detection instrument, including base and the detection instrument body of being installed on base, further include the sample processing cabin located above base, sample processing cabin is equipped with feed inlet, crushing area, grinding area and reaction zone in it, rotating shaft is rotatably installed in the inside of sample processing cabin, the outside of rotating shaft is fixedly installed with blade for crushing food, grinding ball is installed in grinding area for grinding food, arc filter tank is equipped in grinding area, rotating rod for rotation is rotatably connected in the inside of sample processing cabin, rotating rod one end is rotatably connected with support, support is fixedly connected with the baffle compatible with the bottom of grinding area, slot is equipped in baffle, when rotating rod rotates, baffle closes filter tank by limiting mechanism, when rotating rod stops rotating, baffle opens filter tank by the synergies of slot and limiting mechanism.

[0006] The outer surface of the rotating rod is fixedly connected with a fixing member, the outer side of the fixing member is hingedly connected with a connecting rod mechanism, the connecting shaft of the connecting rod mechanism is rotatably connected with the grinding ball, the outer surface of the sample processing cabin is provided with a liquid inlet pipe for adding a detection reagent into the reaction zone, the bottom end of the sample processing cabin is communicated with a spiral channel, and the outlet of the channel is communicated with the inlet of the detection instrument body.

[0007] Preferably, the cross section of the outer ring of the grinding area is inclined, and the cross section of the bottom of the grinding area is arc-shaped and in contact with the grinding ball.

[0008] Preferably, the inner side of the support is in contact with the outer side of the rotating rod, and the contact surfaces of the two are rough surfaces.

[0009] Preferably, the outer surface of the rotating rod is fixedly connected with a rotating wheel, one end of the rotating shaft is fixedly connected with a grinding wheel, and the rotating wheel is in close contact with the grinding wheel.

[0010] Preferably, the outer surface of the rotating rod is provided with a guide plate for guiding the food into the blade, and one end of the guide plate is conical.

[0011] Preferably, the limiting mechanism includes a support leg, a fixed plate, a torsion spring and an arc-shaped positioning block, the bottom of the support is provided with an arc-shaped groove compatible with the positioning block, the positioning block is located in the arc-shaped groove, the fixed plate is fixed to the inner wall of the reaction zone through the support leg, the two ends of the torsion spring are fixed to the fixed plate and the support respectively, and the positioning block is fixed to the fixed plate.

[0012] Preferably, the connecting rod mechanism further includes an inclined arm and a connecting member, one end of the inclined arm is hingedly connected with the fixing member, the other end is hingedly connected with the connecting member, and the connecting member is fixedly connected with the connecting shaft.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The gluten-containing food rapid detection instrument is provided with a blocking piece, which can automatically close the filter groove when the rotating rod rotates during the grinding process, and the grinding ball can move to improve the grinding range as the rotating speed of the rotating rod increases; when the grinding is completed, the slot of the blocking piece can correspond to the filter groove to automatically open the filter groove; the sample processing cabin and the channel are integrally arranged, so that the sample does not need to be transferred during the process of being crushed, ground, mixed and conveyed to the detection instrument body, and the air microorganisms and dust particles are prevented from mixing into the sample, so that the sample is prevented from being polluted and the reliability of detection is easily affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sectional view of the sample processing cabin front view of the utility model;

[0017] Figure 3 It is a sample processing cabin internal structure schematic view of the utility model;

[0018] Figure 4 It is a sectional view of the sample processing cabin side view of the utility model;

[0019] Figure 5 It is a bracket and blocking piece bottom view of the utility model;

[0020] Figure 6 It is a blade and rotating wheel top view of the utility model;

[0021] Figure 7 It is a connecting rod mechanism structure schematic view of the utility model;

[0022] Figure 8 It is a sectional view of the grinding ball front view of the utility model;

[0023] Figure 9 It is a limiting mechanism structure schematic view of the utility model;

[0024] Figure 10 It is a sectional view of the bracket bottom view of the utility model.

[0025] Wherein: 1, base; 2, detector body; 3, sample processing cabin; 301, feed inlet; 302, crushing area; 303, grinding area; 304, reaction area; 4, rotating shaft; 5, blade; 6, grinding ball; 7, filter tank; 8, rotating rod; 9, support; 10, baffle; 11, notch; 12, fixing piece; 13, connecting rod mechanism; 131, connecting shaft; 132, inclined arm; 133, connecting piece; 14, liquid inlet pipe; 15, channel; 16, rotating wheel; 17, grinding wheel; 18, guide plate; 19, limiting mechanism; 191, supporting leg; 192, fixed plate; 193, torsional spring; 194, positioning block; 20, arc-shaped groove. DETAILED DESCRIPTION

[0026] As Figures 1-10As shown, a kind of gluten-containing food rapid detector, including base 1 and the detector body 2 installed on base 1, also include the sample processing cabin 3 located above base 1, the bottom of sample processing cabin 3 is conical, the upper surface of base 1 is fixedly connected with two support plates, two support plates are fixedly connected with sample processing cabin 3, support plate provides support force for sample processing cabin 3, to improve the stability of sample processing cabin 3, sample processing cabin 3 is equipped with feed inlet 301, crushing area 302, grinding area 303 and reaction area 304, the cross section of outer circle of grinding area 303 is inclined, the cross section of the bottom of grinding area 303 is arc-shaped, and is in contact with grinding ball 6, rotating shaft 4 is rotatably installed in sample processing cabin 3, the outer side of rotating shaft 4 is fixedly installed with blade 5 for crushing food, blade 5 is located in crushing area 302, the number of rotating shaft 4 and blade 5 is set to several, and several blades 5 are arranged in a circle, grinding ball 6 for grinding food is installed in grinding area 303, arc-shaped filter groove 7 is provided in grinding area 303, rotating rod 8 for rotation is rotatably connected in sample processing cabin 3, rotating rod 8 is fixedly connected with rotating wheel 16 on outer surface, one end of rotating shaft 4 is fixedly connected with grinding wheel 17, rotating wheel 16 is in close contact with grinding wheel 17, rotating wheel 16 is in close contact with grinding wheel 17, when rotating rod 8 rotates, rotating wheel 16 can be driven to rotate, rotating wheel 16 drives grinding wheel 17 to rotate by friction force, guide plate 18 for guiding food into blade 5 is installed on the outer surface of rotating rod 8, one end of guide plate 18 is conical, guide plate 18 is fixed with rotating rod 8, when rotating rod 8 rotates, guide plate 18 can be driven to rotate, thereby facilitating the use of centrifugal force to throw food on the surface of guide plate 18, to prevent food from piling up, one end of rotating rod 8 is rotatably connected with support 9, the other end of rotating rod 8 is connected with external power source, the inner side of support 9 is in contact with the outer side of rotating rod 8, and the contact surfaces of the two are set as rough surfaces, the support 9 is fixedly connected with the baffle 10 matched with the bottom of the grinding area 303, the baffle 10 is provided with the notch 11, when the rotating rod 8 rotates, the baffle 10 closes the filter groove 7 through the limiting mechanism 19, when the rotating rod 8 stops rotating, the baffle 10 opens the filter groove 7 through the cooperation of the notch 11 and the limiting mechanism 19, the notch 11 and the filter groove 7 are provided with several, and the positions of several notches 11 correspond to the positions of several filter grooves 7, limiting mechanism 19 includes support leg 191, fixed plate 192, torsional spring 193 and arc-shaped positioning block 194, arc-shaped groove 20 matched with positioning block 194 is formed in the bottom of support 9, positioning block 194 is located in arc-shaped groove 20, fixed plate 192 is fixed with the inner wall of reaction area 304 through support leg 191, both ends of torsional spring 193 are fixed with fixed plate 192 and support 9, positioning block 194 is fixed with fixed plate 192, when rotating rod 8 drives support 9 to rotate, positioning block 194 will abut against one of the inner side walls of arc-shaped groove 20, torsional spring 193 deforms, at this time, support 9 stops rotating, and baffle 10 closes filter groove 7,When the rotating rod 8 stops rotating, the support 9 loses the rotating force brought by the rotating rod 8, at this time, the torsional spring 193 drives the support 9 to reset, so that the baffle 10 drives the notch 11 to move to the lower side of the filter groove 7, and the purpose that the filter groove 7 can be automatically opened is realized.

[0027] The outer surface of the rotating rod 8 is fixedly connected with a fixing piece 12, the outer side of the fixing piece 12 is hingedly connected with a connecting rod mechanism 13, the number of the connecting rod mechanism 13 and the number of the grinding ball 6 are both set to be several, and the several grinding balls 6 correspond to the several connecting rod mechanisms 13 respectively, the connecting rod mechanism 13 further comprises an inclined arm 132 and a connecting piece 133, one end of the inclined arm 132 is hingedly connected with the fixing piece 12, the other end is hingedly connected with the connecting piece 133, the connecting piece 133 is fixedly connected with the connecting shaft 131, the connecting shaft 131 of the connecting rod mechanism 13 is rotationally connected with the grinding ball 6, the outer surface of the sample processing cabin 3 is provided with a liquid inlet pipe 14 for adding a detection reagent into the reaction area 304, the bottom end of the sample processing cabin is communicated with a spiral-shaped channel 15, and the outlet of the channel 15 is communicated with the inlet of the detection instrument body 2.

[0028] In use, first drive the rotating rod 8 to rotate by an external power source, which can be a motor, the rotating rod 8 drives the rotating wheel 16 to rotate when rotating, the rotating wheel 16 drives the several grinding wheels 17 to rotate through friction, the grinding wheels 17 drive the blades to rotate, then put the food sample to be detected into the feeding port 301 of the sample processing cabin 3, the food sample will fall to the guide plate 18, the rotating rod 8 can also drive the guide plate 18 to rotate, the sample will be thrown to the crushing area 302 along the inclined surface of the guide plate 18, and the sample will fall to the blades, with the rotation of the blades, the several blades can crush the food close to them, it should be noted that, since the rotating wheel 16 is in close contact with the grinding wheel 17, the linear speed of the contact point of the rotating wheel 16 and the grinding wheel 17 is the same, because the linear speed is equal to the angular speed multiplied by the radius, the diameter of the rotating wheel 16 is large, that is, the radius is large, the diameter of the grinding wheel 17 is small, the radius is small, in the case that their linear speeds are equal, the angular speed of the grinding wheel 17 with small radius will be large, so the grinding wheel 17 rotates a larger angle in the same time, thus the grinding wheel 17 rotates faster, so that the blades can rotate faster, which is beneficial to crush the sample, the crushed sample falls to the grinding area 303 from the crushing area 302, the rotating rod 8 can also drive the fixed part 12 to rotate when rotating, the fixed part 12 drives the several connecting rod mechanisms 13 to rotate in a circular motion, the connecting rod mechanisms 13 drive the grinding balls 6 to rotate along the arc surface of the grinding area 303 and roll, realizing the grinding of the sample and grinding the sample into fine particles, it should be noted that, before feeding, the rotating rod 8 will drive the bracket 9 to rotate through friction, when one of the inner side walls of the arc-shaped groove 20 in the bracket 9 rotates to the position where it contacts the positioning block 194, the positioning block 194 abuts against the bracket 9 to prevent the bracket 9 from rotating again, at this time, the torsional spring 193 begins to deform, since the rotating rod 8 exerts a rotational force on the bracket 9 and overcomes the elastic force of the torsional spring 193, the torsional spring 193 cannot drive the bracket 9 to reset, so that the notch 11 of the baffle 10 is always misaligned with the filter groove 7 in the process of rotation of the rotating rod 8, the baffle 10 can block the filter groove 7, realizing the purpose that the baffle 10 can close the filter groove 7 in the process of rotation of the rotating rod 8.

[0029] Subsequently, when the rotating rod 8 rotates, the gravity of the grinding ball 6 should be greater than the centrifugal force generated when it rotates, so that the grinding ball 6 can perform grinding work at the arc surface at the bottom of the grinding area 303. When the rotating speed of the rotating rod 8 is increased, the centrifugal force generated by the grinding ball 6 is greater than its gravity, so that the grinding ball 6 moves along the inclined surface of the grinding area 303 and continues to grind in the process of moving, thereby improving the grinding range of the grinding ball 6. When the grinding work is completed, the rotation of the rotating rod 8 is stopped. At this time, the rotating rod 8 no longer exerts a rotating force on the support 9, and the torsional spring 193 overcomes the friction between the rotating rod 8 and the support 9 and drives the support 9 to reset, so that the plurality of notches 11 correspond to the positions of the plurality of filter grooves 7 respectively, and the notches 11 and the filter grooves 7 are in a communication state, so that the fine sample particles after grinding fall into the reaction area 304. At this time, the detection reagent is added into the reaction area 304 through the liquid inlet pipe 14. It should be noted that the detection reagent usually contains specific antibodies, for example, monoclonal antibodies or polyclonal antibodies specific to certain antigenic determinants in gluten. These antibodies can specifically bind to the corresponding antigenic sites in gluten. If enzyme-linked immunosorbent assay is used, a secondary antibody labeled with an enzyme can also be added. The secondary antibody can bind to the primary antibody combined with gluten, and then the enzyme reacts with the substrate to produce a color change. The color depth is detected to quantitatively analyze the content of gluten. If it is a nucleic acid detection method such as polymerase chain reaction, the detection reagent mainly includes primers, DNA polymerase, dNTP, which is used to amplify the gluten-related gene fragment, and the presence or absence of gluten is determined by detecting the amplification product; due to the tapered shape of the sample processing cabin 3 at the bottom end, the detection reagent and the sample particles naturally fall into the channel 15 under the action of gravity, and their gravity provides the initial power for their movement. The spiral channel 15 makes the detection reagent and the sample particles move along the spiral path during the downward movement. This spiral path increases the length and complexity of their motion trajectory, so that they constantly change direction and position in the channel 15, increasing the opportunity for mutual contact and mixing. Just like in a spiral slide, objects will constantly rotate and change direction when sliding down. The same is true for the detection reagent and the sample particles in the spiral channel 15. They achieve more complete mixing in the process of constant turning and advancing, and finally fall into the inlet of the detector body 2. Then the sample is detected by the detector body 2.

[0030] Finally, in summary, the sample processing cabin 3 and the channel 15 are integrally arranged. The sample is transported from the crushing, grinding, mixing to the detector body 2 without the aid of multiple pipetting tools and containers. The processed sample is transferred from the sample processing area to the reaction area 304, avoiding affecting the accuracy of the detection result. Moreover, the sample is not exposed to the external environment for transfer, preventing microorganisms and dust particles in the air from mixing into the sample, thereby avoiding contamination of the sample and affecting the reliability of the detection.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A gluten-containing food rapid detector, comprising a base (1) and a detector body (2) mounted on the base (1), characterized in that: The sample processing cabin (3) is arranged above the base (1), and the sample processing cabin (3) is internally provided with a feeding port (301), a crushing area (302), a grinding area (303) and a reaction area (304); a rotating shaft (4) is rotatably arranged in the sample processing cabin (3); a blade (5) for crushing food is fixedly arranged on the outer side of the rotating shaft (4); a grinding ball (6) for grinding food is arranged in the grinding area (303); an arc-shaped filter groove (7) is arranged in the grinding area (303); a rotating rod (8) for rotation is rotatably connected to the inside of the sample processing cabin (3); a support (9) is rotatably connected to one end of the rotating rod (8); a baffle (10) matched with the bottom of the grinding area (303) is fixedly connected to the support (9); a notch (11) is arranged in the baffle (10); when the rotating rod (8) rotates, the baffle (10) closes the filter groove (7) through a limiting mechanism (19); when the rotating rod (8) stops rotating, the baffle (10) opens the filter groove (7) through the cooperation of the notch (11) and the limiting mechanism (19). A fixing piece (12) is fixedly connected to the outer surface of the rotating rod (8); a connecting rod mechanism (13) is hingedly connected to the outer side of the fixing piece (12); the connecting shaft (131) of the connecting rod mechanism (13) is rotatably connected to the grinding ball (6); the outer surface of the sample processing cabin (3) is provided with a liquid inlet pipe (14) for adding a detection reagent into the reaction area (304); the bottom end of the sample processing cabin is communicated with a spiral channel (15); the outlet of the channel (15) is communicated with the inlet of the detection instrument body (2).

2. The rapid detector for gluten-containing food according to claim 1, characterized in that: The cross section of the outer ring of the grinding area (303) is inclined; the cross section of the bottom of the grinding area (303) is arc-shaped and in contact with the grinding ball (6).

3. The rapid detector for gluten-containing food according to claim 1, characterized in that: The inner side of the support (9) is in contact with the outer side of the rotating rod (8), and the contact surfaces of the two are rough surfaces.

4. The rapid detector for gluten-containing food according to claim 1, characterized in that: A rotating wheel (16) is fixedly connected to the outer surface of the rotating rod (8); a grinding wheel (17) is fixedly connected to one end of the rotating shaft (4); the rotating wheel (16) is in close contact with the grinding wheel (17).

5. The rapid detector for gluten-containing food according to claim 1, characterized in that: A guide plate (18) for guiding the food into the blade (5) is arranged on the outer surface of the rotating rod (8); one end of the guide plate (18) is conical.

6. The rapid detector for gluten-containing food according to claim 1, characterized in that: The limiting mechanism (19) comprises a supporting leg (191), a fixed plate (192), a torsional spring (193) and an arc-shaped positioning block (194); an arc-shaped groove (20) matched with the positioning block (194) is arranged in the bottom of the support (9); the positioning block (194) is arranged in the arc-shaped groove (20); the fixed plate (192) is fixed to the inner wall of the reaction area (304) through the supporting leg (191); the two ends of the torsional spring (193) are fixed to the fixed plate (192) and the support (9) respectively; and the positioning block (194) is fixed to the fixed plate (192).

7. The rapid detector for gluten-containing food according to claim 1, characterized in that: The connecting rod mechanism (13) further comprises an inclined arm (132) and a connecting piece (133); one end of the inclined arm (132) is hingedly connected to the fixing piece (12); the other end of the inclined arm (132) is hingedly connected to the connecting piece (133); and the connecting piece (133) is fixedly connected to the connecting shaft (131).

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