A food contaminant rapid detection device based on spectral technology and its use method

Abstract

The present invention relates to the field of food detection technology, and discloses a food contaminant rapid detection device based on spectral technology and a method of using the same, comprising a main body, a light tube fixedly connected to the bottom inner wall of the main body, an electric push rod fixedly connected to the right inner wall of the main body, and a filter fixedly connected to the output end of the electric push rod. When the sliding ring of the present invention moves upward, the insertion rod on its surface will drive the sliding ring to rotate left and right at the undulations on the B-shaped groove. When the sliding ring rotates left and right, it will drive the obtuse plate to rotate through the spherical rod. When the obtuse plate rotates, it will drive the sample tube to rotate and deflect while moving upward. When the sample tube slides up and down and rotates, the sample tube can be shaken in multiple directions, thereby effectively promoting the uniform mixing of the internal components of the sample, reducing the detection error caused by the uneven sample, and thus improving the accuracy of the detection result and the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection, and in particular to a device for rapid detection of food contaminants based on spectral technology and a method for using the device. Background Art

[0002] As a non-contact, non-destructive and rapid detection technology, spectroscopy has significant advantages in food contaminant detection. Its principle is to infer the composition, structure and content of the substance by analyzing the spectral information generated by the interaction between the substance and light. With the continuous development of spectroscopy technology, advanced spectral analysis technologies such as hyperspectral and full spectrum are gradually applied to the field of food contaminant detection.

[0003] In order to ensure the accuracy of the test, it is necessary to make the sample to be tested evenly distributed in the sample tube. Generally, the existing devices basically stir the food in the sample tube with a stirring rod before the test. Since it is difficult for the stirring rod to fully mix the food liquid containing large particles of solid or relatively viscous, it is easy to cause detection errors due to uneven mixing during the test, thereby affecting the accuracy and efficiency of the test. Summary of the invention

[0004] The purpose of the present invention is to provide a food contaminant rapid detection device based on spectral technology and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a food contaminant rapid detection device based on spectral technology, comprising a main body, a light pipe is fixedly connected to the bottom inner wall of the main body, an electric push rod is fixedly connected to the right inner wall of the main body, a filter is fixedly connected to the output end of the electric push rod, a motor is fixedly connected to the bottom inner wall of the main body, a sawtooth cylinder 1 is slidably connected to the outer surface of the output end of the motor, two support plates are fixedly connected to the bottom of the sawtooth cylinder 1, a side of the support plate away from the sawtooth cylinder 1 is fixedly connected to the inner wall of the main body, a sealing cover is hinged on the top of the main body, a detector is fixedly connected to the front inner wall of the main body, and further comprising;

[0007] The detection mechanism includes a spring frame connected to the top of the motor, the outer surface of the spring frame is slidably connected to a placement plate, the top inner wall of the spring frame is fixedly connected to the top of the placement plate, and the bottom of the spring frame is rotatably connected to a second sawtooth cylinder;

[0008] The auxiliary mechanism includes a plurality of fixed cylinders fixedly connected to the side of the placement plate close to the light tube, the side wall of the fixed cylinder is provided with a rectangular groove, the inner wall of the fixed cylinder is provided with a B-shaped groove, the bottom outer wall of the fixed cylinder is provided with a plurality of sliding grooves, the bottom of the fixed cylinder is provided with a plurality of air inlet holes, the top of the air inlet hole penetrates to the bottom inner wall of the fixed cylinder, the bottom inner wall of the fixed cylinder is fixedly connected with an inner cylinder, and the interior of the main body is fixedly connected with an elastic ring.

[0009] Furthermore, a moving mechanism is arranged inside the fixed cylinder, and the moving mechanism includes a plurality of return springs fixedly connected to the outer wall of the bottom of the placing plate, and the bottom of the plurality of return springs is fixedly connected to the sliding cylinder.

[0010] Furthermore, an auxiliary rod is fixedly connected to the outer surface of the sliding cylinder, and one end of the auxiliary rod away from the sliding cylinder penetrates the outer wall of the rectangular groove and extends between the first sawtooth cylinder and the second sawtooth cylinder.

[0011] Furthermore, a plurality of obtuse-angled plates are fixedly connected to the bottom of the sliding cylinder, an arc-shaped groove is provided on the side of the obtuse-angled plate close to the fixed cylinder, a sliding block is slidably connected inside the arc-shaped groove, a side of the sliding block away from the obtuse-angled plate is rotatably connected to a spherical rod, a side of the obtuse-angled plate close to the spherical rod is rotatably connected to an intermediate rod, and one end of the intermediate rod away from the obtuse-angled plate is rotatably connected to the inner wall of the fixed cylinder.

[0012] Furthermore, a sliding mechanism is provided inside the fixed cylinder, and the sliding mechanism includes a flexible layer fixedly connected between two obtuse-angled plates, an annular flexible belt is fixedly connected to the bottom of the plurality of flexible layers, a side of the annular flexible belt away from the flexible layer is fixedly connected to the inner wall of the fixed cylinder, a one-way plate is fixedly connected to the side wall of the flexible layer, the one-way plate is made of elastic material, a sliding ring is provided at the bottom of the flexible layer, a top of the sliding ring is rotatably connected to the side wall of the spherical rod, a short rod is fixedly connected to the outer surface of the sliding ring, and an end of the short rod away from the sliding ring is slidably connected to the inside of the B-shaped groove;

[0013] Wherein, the bottom of the sliding ring is fixedly connected with a piston ring.

[0014] Furthermore, a buffer mechanism is provided inside the fixed cylinder, and the buffer mechanism includes two elastic plates fixedly connected to the side of the obtuse-angle plate away from the fixed cylinder, the two elastic plates are fixedly connected to the side of the sliding cylinder away from the triangular plates, the side of the triangular plates close to the sliding cylinder is in contact with the side wall of the sliding cylinder, two elastic rods are fixedly connected between the two triangular plates, the inner walls of several spherical rods are fixedly connected to flexible sleeves, the side walls of the flexible sleeves are fixedly connected to several one-way plates 2, and the one-way plates 2 are made of elastic material.

[0015] Furthermore, a cleaning mechanism is provided inside the fixed cylinder, and the cleaning mechanism includes an air jet ring fixedly connected to the inner wall of the inner cylinder, and a plurality of air jet one-way tubes are fixedly connected to one side of the air jet ring close to the fixed cylinder, and one end of the air jet one-way tube away from the air jet ring penetrates the outer wall of the inner cylinder and is connected to the interior of the fixed cylinder, and the outer wall of the air jet one-way tube is fixedly connected to the outer wall of the fixed cylinder;

[0016] A plurality of air inlet grooves are provided inside the fixed cylinder, and a one-way valve is rotatably connected inside the air inlet groove.

[0017] Furthermore, a reflective mechanism is provided at the bottom of the fixed cylinder, and the reflective mechanism includes a plurality of elliptical plates fixedly connected to the bottom of the fixed cylinder, the elliptical plates are made of elastic material, a side of the elliptical plate close to the sliding groove is rotatably connected to a spring plate, a side of the spring plate away from the elliptical plate is slidably connected to the inside of the sliding groove, a side of the spring plate close to the jet ring is fixedly connected to the inner wall of the sliding groove, a reflective plate is fixedly connected to the outer wall of the elliptical plate, and a rubber layer is fixedly connected between the two elliptical plates.

[0018] Furthermore, a method for using a food contaminant rapid detection device based on spectroscopy technology, a food contaminant rapid detection device based on spectroscopy technology, the method comprising the following steps:

[0019] S1: Place the sample tube;

[0020] S2: Equipment startup;

[0021] S3: Rotation detection.

[0022] The present invention has the following beneficial effects:

[0023] 1. In the present invention, when the sample tube is placed inside the fixed cylinder, the sample tube will squeeze the obtuse plate. When the obtuse plate is squeezed by the surface of the sample tube, it will move backward. When the bottom of the obtuse plate moves backward, it will generate a thrust on the top of the sliding cylinder. Then, when the motor rotates, the rotation of the motor will drive the fixed cylinder to rotate through the placement plate. When the fixed cylinder rotates, it will drive the auxiliary rod and the sliding cylinder to rotate through the rectangular groove. When the auxiliary rod rotates with the fixed cylinder, the auxiliary rod will slide up and down along the guidance of the annular groove between the serrated cylinder one and the serrated cylinder two. When the auxiliary rod slides downward, it will drive the sliding cylinder to move downward synchronously. When the sliding cylinder moves downward, it will The obtuse-angled plate drives the sample tube to move, and then, when the sliding cylinder moves upward, it drives the sliding ring to move upward through the spherical rod. When the sliding ring moves upward, the insertion rod on its surface drives the sliding ring to rotate left and right at the undulations on the B-shaped groove. When the sliding ring rotates left and right, it drives the obtuse-angled plate to rotate through the spherical rod. When the obtuse-angled plate rotates, it drives the sample tube to rotate and deflect while moving upward. When the sample tube slides up and down and rotates, the sample tube can be shaken in multiple directions, thereby effectively promoting the uniform mixing of the internal components of the sample, reducing the detection error caused by the uneven sample, and thus improving the accuracy and efficiency of the detection results.

[0024] 2. In the present invention, when the sliding cylinder drives the obtuse-angled plate to move downward, the downward movement of the obtuse-angled plate will drive the middle rod to rotate. When the middle rod rotates, it will push the side wall of the obtuse-angled plate to cause it to bulge in the direction of the sample tube. When the obtuse-angled plate is deformed, the edge of its bulge will pull the side wall of the triangular plate through the elastic plate. At the same time, the bulge of the obtuse-angled plate will squeeze the corner of the triangular plate. At this time, after the triangular plate is squeezed and pulled by the obtuse-angled plate, its two ends will drive the elastic rod to expand to both sides. When the two sides of the triangular plate expand, they will drive the side wall of the flexible sleeve through the elastic rod to form a horizontal state. At the same time, when the obtuse-angled plate pushes the sliding ring to move downward, the downward movement of the sliding ring will bring The movable piston ring squeezes the gas between the fixed cylinder and the inner cylinder. When the gas is squeezed by the piston ring, it will enter between the flexible layer and the inner wall of the fixed cylinder through the air inlet groove. At the same time, when the flexible sleeve forms a horizontal state, the gas inside it will be squeezed between the flexible layer and the fixed cylinder through the one-way plate. At this time, the one-way plate 2 on the flexible sleeve will be in a closed state when the gas flows out. Then, the flexible sleeve will form a buffer layer with elastic support on the surface of the sample tube when sliding on both sides of the triangular plate, which can reduce the possibility of collision between the sample tube and the surrounding structure when shaking and deflecting, and reduce the possibility of rupture of the sample tube due to expansion and damage when sliding up and down and rotating, thereby ensuring the normal progress of the detection work.

[0025] 3. In the present invention, when the obtuse-angled plate pushes the sliding ring to slide downward, the downward movement of the sliding ring will drive the piston ring to move downward synchronously. When the piston ring moves downward, it will squeeze the gas between the fixed cylinder and the inner cylinder. After the gas is squeezed, part of the gas will enter between the flexible layer and the inner cylinder through the air intake groove on the outer wall of the inner cylinder. Then, when the piston ring moves downward and passes over the hole on the air intake groove, it will squeeze the remaining gas into the inside of the elliptical plate through the air intake hole on the fixed cylinder. Then, when the gas enters the inside of the elliptical plate, the gas will push the elliptical plate to generate a motion state of outward expansion. Then, When the elliptical plate expands, it will gradually rotate downward during the expansion process, and then when the elliptical plate rotates downward, it will pull the spring plate to slide inside the sliding groove. After that, when the elliptical plate rotates, it will drive the reflective plate to rotate synchronously and make the reflective plate face the bottom of the sample tube, reflecting the light irradiated to the bottom of the sample tube, reducing the deviation of the sample tube during the up and down sliding and shaking process, and reducing the situation where the bottom of the sample tube is difficult to evenly receive spectral light after the deviation, resulting in the sample tube or the detector being unable to correctly receive the light signal, thereby affecting the accuracy of the detection.

[0026] 4. In the present invention, when the obtuse-angled plate and the sliding cylinder slide upward, the obtuse-angled plate will reset from the raised state, and when the obtuse-angled plate is reset, it will drive the flexible layer to squeeze the gas between the flexible layer and the fixed cylinder. At this time, the one-way valve inside the jet one-way tube will be in a closed state, and then when the gas is squeezed by the flexible layer when it is reset, it will also push the jet one-way tube and enter the inner wall of the jet ring through the jet one-way tube, and then spray the reflector through the jet ring. When the gas is sprayed through the jet ring, the dust on the reflector will be cleaned, thereby reducing the situation where dust remains on the reflector when the sample tube is shaken or the sample tube is tested for a long time, reducing the situation where light scattering occurs when reflecting light signals due to the residue of dust particles, and reducing the influence of the scattering of light signals on the light reception of the detector, thereby affecting the accuracy of the detection effect.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2It is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the main body of the present invention;

[0032] Figure 4 It is a schematic diagram of the auxiliary mechanism moving mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the mobile mechanism of the present invention;

[0034] Figure 6 It is a schematic diagram of the cleaning mechanism of the present invention;

[0035] Figure 7 It is a schematic diagram of the sliding mechanism of the present invention;

[0036] Figure 8 It is a schematic diagram of the buffer mechanism of the present invention;

[0037] Fig. 9 It is a schematic diagram of the reflective mechanism of the present invention;

[0038] Fig.10 For the present invention Figure 5 Enlarged view of point A in the middle;

[0039] Fig.11 The present invention is a flow chart of the detection method.

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] In the figure: 1, main body; 101, light pipe; 102, filter; 103, motor; 104, sawtooth cylinder 1; 2, detection mechanism; 201, placement plate; 202, spring frame; 203, sawtooth cylinder 2; 3, auxiliary mechanism; 301, fixed cylinder; 302, B-shaped groove; 303, inner cylinder; 304, elastic ring; 4, moving mechanism; 401, sliding cylinder; 402, obtuse plate; 403, sliding block; 404, middle Intermediate rod; 5. Sliding mechanism; 501. Flexible layer; 502. One-way plate; 503. Sliding ring; 6. Buffer mechanism; 601. Elastic plate; 602. Triangular plate; 603. Flexible sleeve; 604. One-way plate II; 7. Cleaning mechanism; 701. Jet ring; 702. Jet one-way pipe; 703. Inlet groove; 8. Reflective mechanism; 801. Elliptical plate; 802. Spring plate; 803. Reflective plate; 804. Rubber layer. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1 - Fig.10 As shown, the present invention is a rapid detection device for food contaminants based on spectral technology, comprising a main body 1, a light pipe 101 is fixedly connected to the bottom inner wall of the main body 1, an electric push rod is fixedly connected to the right inner wall of the main body 1, a filter 102 is fixedly connected to the output end of the electric push rod, a motor 103 is fixedly connected to the bottom inner wall of the main body 1, a sawtooth cylinder 104 is slidably connected to the outer surface of the output end of the motor 103, two support plates are fixedly connected to the bottom of the sawtooth cylinder 104, a side of the support plate away from the sawtooth cylinder 104 is fixedly connected to the inner wall of the main body 1, a sealing cover is hinged on the top of the main body 1, a detector is fixedly connected to the front inner wall of the main body 1, and further comprising;

[0044] The detection mechanism 2 includes a spring frame 202 connected to the top of the motor 103, the outer surface of the spring frame 202 is slidably connected to the placement plate 201, the top inner wall of the spring frame 202 is fixedly connected to the top of the placement plate 201, and the bottom of the spring frame 202 is rotatably connected to the sawtooth cylinder 203;

[0045] The auxiliary mechanism 3 includes a plurality of fixed cylinders 301 fixedly connected to the side of the placement plate 201 close to the light tube 101, a rectangular groove is provided on the side wall of the fixed cylinder 301, a B-shaped groove 302 is provided on the inner wall of the fixed cylinder 301, a plurality of sliding grooves are provided on the bottom outer wall of the fixed cylinder 301, a plurality of air inlet holes are provided on the bottom of the fixed cylinder 301, the top of the air inlet hole penetrates to the bottom inner wall of the fixed cylinder 301, an inner cylinder 303 is fixedly connected to the bottom inner wall of the fixed cylinder 301, and an elastic ring 304 is fixedly connected to the inside of the 301 main body 1. First, place the sample tube to be tested on the placement plate 201. The holes on the tray 201 are then closed, and the sealing cover is then closed. The motor 103 and the light tube 101 are then started. When the motor 103 is working, the tray 201 is driven to rotate. When the tray 201 rotates, multiple sample tubes are driven to rotate. When the sample tube rotates one circle, the motor 103 is stopped. Then, the motor 103 is started periodically so that all sample tubes on the tray 201 can be tested. Then, the light emitted by the light tube 101 when working passes through the filter 102, and irradiates the bottom surface of the sample tube inside the fixed cylinder 301 and is reflected to the surface of the detector to complete the detection purpose.

[0046] A moving mechanism 4 is provided inside the fixed cylinder 301, and the moving mechanism 4 includes a plurality of return springs fixedly connected to the outer wall of the bottom of the placing plate 201, and the bottom of the plurality of return springs is fixedly connected to the sliding cylinder 401. When the sample tube is placed inside the fixed cylinder 301, the sample tube will squeeze the obtuse plate 402, and when the obtuse plate 402 is squeezed by the surface of the sample tube, it will move backward, and when the bottom of the obtuse plate 402 moves backward, it will generate a thrust on the top of the sliding cylinder 401.

[0047] An auxiliary rod is fixedly connected to the outer surface of the sliding cylinder 401 , and one end of the auxiliary rod away from the sliding cylinder 401 penetrates the outer wall of the rectangular groove and extends between the sawtooth cylinder 1 104 and the sawtooth cylinder 2 203 .

[0048] The bottom of the sliding cylinder 401 is fixedly connected with a plurality of obtuse-angled plates 402, and an arc groove is opened on the side of the obtuse-angled plate 402 close to the fixed cylinder 301, and a sliding block 403 is slidably connected inside the arc groove, and a spherical rod is rotatably connected to the side of the sliding block 403 away from the obtuse-angled plate 402, and an intermediate rod 404 is rotatably connected to the side of the obtuse-angled plate 402 close to the spherical rod, and an intermediate rod 404 is rotatably connected to the inner wall of the fixed cylinder 301 at one end thereof away from the obtuse-angled plate 402. Subsequently, when the motor 103 rotates, the rotation of the motor 103 will drive the fixed cylinder 301 to rotate through the placement plate 201, and the fixed cylinder 301 will drive the auxiliary rod and the sliding cylinder 401 to rotate through the rectangular groove when rotating, and when the auxiliary rod rotates with the fixed cylinder 301, the auxiliary rod will slide up and down along the guidance of the annular groove between the serrated cylinder 1 104 and the serrated cylinder 2 203, and when the auxiliary rod slides downward, it will drive the sliding cylinder 401 to move downward synchronously.

[0049] The interior of the fixed cylinder 301 is provided with a sliding mechanism 5, which includes a flexible layer 501 fixedly connected between two obtuse-angle plates 402, a plurality of flexible layers 501 are fixedly connected to the bottom with an annular flexible belt, the side of the annular flexible belt away from the flexible layer 501 is fixedly connected to the inner wall of the fixed cylinder 301, the side wall of the flexible layer 501 is fixedly connected with a one-way plate 502, the one-way plate 502 is made of elastic material, a sliding ring 503 is provided at the bottom of the flexible layer 501, the top of the sliding ring 503 is rotatably connected to the side wall of the spherical rod, the outer surface of the sliding ring 503 is fixedly connected with a short rod, and the end of the short rod away from the sliding ring 503 is slidably connected to the inside of the B-shaped groove 302;

[0050] Among them, a piston ring is fixedly connected to the bottom of the sliding ring 503. When the sliding cylinder 401 moves downward, it will drive the sample tube to move through the obtuse plate 402. Then, when the sliding cylinder 401 moves upward, it will drive the sliding ring 503 to move upward through the spherical rod. When the sliding ring 503 moves upward, the insertion rod on its surface will drive the sliding ring 503 to rotate left and right at the undulations on the B-shaped groove 302.

[0051] The interior of the fixed cylinder 301 is provided with a buffer mechanism 6, which includes two elastic plates 601 fixedly connected to the side of the obtuse plate 402 away from the fixed cylinder 301, the side of the two elastic plates 601 away from the sliding cylinder 401 is fixedly connected with a triangular plate 602, the side of the triangular plate 602 close to the sliding cylinder 401 is in contact with the side wall of the sliding cylinder 401, two elastic rods are fixedly connected between the two triangular plates 602, the inner walls of the plurality of spherical rods are fixedly connected with a flexible sleeve 603, and the side wall of the flexible sleeve 603 is fixedly connected with a plurality of A second one-way plate 604 is made of elastic material. When the obtuse-angled plate 402 is deformed, the edge of its raised part will pull the side wall of the triangular plate 602 through the elastic plate 601. At the same time, the raised part of the obtuse-angled plate 402 will squeeze the corner of the triangular plate 602. At this time, after the triangular plate 602 is squeezed and pulled by the obtuse-angled plate 402, its two ends will drive the elastic rods to expand to both sides. When the two sides of the triangular plate 602 expand, they will drive the side walls of the flexible sleeve 603 through the elastic rods to form a horizontal state.

[0052] A cleaning mechanism 7 is provided inside the fixed cylinder 301. The cleaning mechanism 7 includes an air jet ring 701 fixedly connected to the inner wall of the inner cylinder 303. A plurality of air jet one-way tubes 702 are fixedly connected to one side of the air jet ring 701 close to the fixed cylinder 301. One end of the air jet one-way tube 702 away from the air jet ring 701 penetrates the outer wall of the inner cylinder 303 and is connected to the interior of the fixed cylinder 301. The outer wall of the air jet one-way tube 702 is fixedly connected to the outer wall of the fixed cylinder 301.

[0053] Among them, a plurality of air inlet grooves 703 are opened inside the fixed cylinder 301, and a one-way valve is rotatably connected inside the air inlet groove 703. When the gas is squeezed by the piston ring, it will enter between the flexible layer 501 and the inner wall of the fixed cylinder 301 through the air inlet groove 703. At the same time, when the flexible sleeve 603 forms a horizontal state, the gas inside it will also be squeezed between the flexible layer 501 and the fixed cylinder 301 through the one-way plate 502.

[0054] A reflective mechanism 8 is provided at the bottom of the fixed cylinder 301, and the reflective mechanism 8 includes a plurality of elliptical plates 801 fixedly connected to the bottom of the fixed cylinder 301, the elliptical plates 801 are made of elastic material, and a spring plate 802 is rotatably connected to the side of the elliptical plate 801 close to the sliding groove, and a side of the spring plate 802 away from the elliptical plate 801 is slidably connected to the inside of the sliding groove, and a side of the spring plate 802 close to the jet ring 701 is fixedly connected to the inner wall of the sliding groove, and a reflective plate 803 is fixedly connected to the outer wall of the elliptical plate 801, and a rubber layer 804 is fixedly connected between the two elliptical plates 801, and then when the gas enters the inside of the elliptical plate 801, the gas will push the elliptical plate 801 to generate a state of movement that expands outward, and then when the elliptical plate 801 expands, it will gradually rotate downward during the expansion process.

[0055] A method for using a food contaminant rapid detection device based on spectroscopy technology, a food contaminant rapid detection device based on spectroscopy technology, the method comprising the following steps:

[0056] S1: Place the sample tube;

[0057] S2: Equipment startup;

[0058] S3: Rotation detection.

[0059] When in use, first place the sample tube to be tested into the hole on the placement tray 201, then close the sealing cover, and then start the motor 103 and the light tube 101. When the motor 103 is working, it will drive the placement tray 201 to rotate. When the placement tray 201 rotates, it will drive multiple sample tubes to rotate. When the sample tube rotates one circle, stop the motor 103, and then start the motor 103 periodically so that all the sample tubes on the placement tray 201 can be tested. Then, the light emitted by the light tube 101 when working will pass through the filter 102, and irradiate the bottom surface of the sample tube inside the fixed cylinder 301 and reflect to the surface of the detector to complete the detection purpose.

[0060] When the sealing cover is put on, the sealing cover will squeeze the top of the spring frame 202 downward, and the spring frame 202 will push the serrated cylinder 203 downward when being squeezed. When the serrated cylinder 203 moves downward, a wavy notch is formed between the bottom of the serrated cylinder 203 and the top of the serrated cylinder 1 104. When the sample tube is placed inside the fixed cylinder 301, the sample tube will squeeze the obtuse plate 402. When the obtuse plate 402 is squeezed by the surface of the sample tube, it will move backward. When the bottom of the obtuse plate 402 moves backward, it will generate a thrust on the top of the sliding cylinder 401. Then, when the motor 103 rotates, the rotation of the motor 103 will drive the fixed cylinder 301 to rotate through the placement plate 201. When the fixed cylinder 301 rotates, it will drive the auxiliary rod and the sliding cylinder 401 to rotate through the rectangular groove. When the auxiliary rod rotates with the fixed cylinder 301, the auxiliary rod will move along the serrated cylinder 104. The auxiliary rod slides up and down under the guidance of the annular groove between the sawtooth cylinder 203. When the auxiliary rod slides downward, it will drive the sliding cylinder 401 to move downward synchronously. When the sliding cylinder 401 moves downward, it will drive the sample tube to move through the obtuse plate 402. Then, when the sliding cylinder 401 moves upward, it will drive the sliding ring 503 to move upward through the spherical rod. When the sliding ring 503 moves upward, the insertion rod on the surface of the sliding ring 503 will drive the sliding ring 503 to rotate left and right at the undulations on the B-shaped groove 302. When the sliding ring 503 rotates left and right, it will drive the obtuse plate 402 to rotate through the spherical rod. When the obtuse plate 402 rotates, it will drive the sample tube to rotate and deflect while moving upward. When the sample tube slides up and down and rotates, the sample tube can be shaken in multiple directions, thereby effectively promoting the uniform mixing of the internal components of the sample, reducing the detection error caused by the uneven sample, and thus improving the accuracy and efficiency of the detection result.

[0061] When the sliding cylinder 401 drives the obtuse-angled plate 402 to move downward, the downward movement of the obtuse-angled plate 402 will drive the middle rod 404 to rotate. When the middle rod 404 rotates, it will push the side wall of the obtuse-angled plate 402 to cause it to bulge in the direction of the sample tube. When the obtuse-angled plate 402 is deformed, the edge of its bulge will pull the side wall of the triangular plate 602 through the elastic plate 601. At the same time, the bulge of the obtuse-angled plate 402 will squeeze the corner of the triangular plate 602. At this time, after the triangular plate 602 is squeezed and pulled by the obtuse-angled plate 402, its two ends will drive the elastic rods to expand to both sides. When the two sides of the triangular plate 602 expand, they will drive the side walls of the flexible sleeve 603 through the elastic rods to form a horizontal state. At the same time, when the obtuse-angled plate 402 pushes the sliding ring 503 to move downward, the sliding ring 503 The downward movement will drive the piston ring to squeeze the gas between the fixed cylinder 301 and the inner cylinder 303. When the gas is squeezed by the piston ring, it will enter between the flexible layer 501 and the inner wall of the fixed cylinder 301 through the air inlet groove 703. At the same time, when the flexible sleeve 603 forms a horizontal state, the gas inside it will be squeezed between the flexible layer 501 and the fixed cylinder 301 through the one-way plate 502. At this time, the one-way plate 2 604 on the flexible sleeve 603 will be in a closed state when the gas flows out. Subsequently, the flexible sleeve 603 will form a buffer layer with elastic support on the surface of the sample tube when sliding on both sides of the triangular plate 602, which can reduce the possibility of collision between the sample tube and the surrounding structure when shaking and deflecting, and reduce the possibility of rupture of the sample tube due to expansion and damage when sliding up and down and rotating, thereby ensuring the normal progress of the detection work.

[0062] When the obtuse plate 402 pushes the sliding ring 503 to slide downward, the downward movement of the sliding ring 503 will drive the piston ring to move downward synchronously. When the piston ring moves downward, it will squeeze the gas between the fixed cylinder 301 and the inner cylinder 303. After the gas is squeezed, part of the gas will enter between the flexible layer 501 and the inner cylinder 303 through the air intake groove 703 on the outer wall of the inner cylinder 303. Then, when the piston ring moves down and passes over the hole on the air intake groove 703, it will squeeze the remaining gas into the inside of the elliptical plate 801 through the air intake hole on the fixed cylinder 301. Then, when the gas enters the inside of the elliptical plate 801, the gas will push the elliptical plate 801 to expand outward. Then, when the elliptical plate 801 expands, it will gradually rotate downward during the expansion process, and then when the elliptical plate 801 rotates downward, it will pull the spring plate 802 to slide inside the sliding groove, and then when the elliptical plate 801 rotates, it will drive the reflective plate 803 to rotate synchronously and make the reflective plate 803 face the bottom of the sample tube, reflect the light irradiated to the bottom of the sample tube, reduce the deviation of the sample tube during the up and down sliding and shaking process, and reduce the situation where the bottom of the sample tube is difficult to uniformly receive the spectral light after the deviation of the sample tube, resulting in the sample tube or the detector being unable to correctly receive the light signal, thereby affecting the accuracy of the detection.

[0063] When the obtuse plate 402 and the sliding cylinder 401 slide upward, the obtuse plate 402 will reset from the raised state. When the obtuse plate 402 resets, it will drive the flexible layer 501 to squeeze the gas between the flexible layer 501 and the fixed cylinder 301. At this time, the one-way valve inside the jet one-way tube 702 will be in a closed state. Subsequently, when the gas is squeezed by the flexible layer 501 when it is reset, it will also push the jet one-way tube 702 and enter the inner wall of the jet ring 701 through the jet one-way tube 702, and then spray the reflector 803 through the jet ring 701. When the gas is sprayed through the jet ring 701, the dust on the reflector 803 will be cleaned, thereby reducing the dust residue on the reflector 803 when the sample tube is shaken or the sample tube is tested for a long time, reducing the light scattering caused by the residue of dust particles when reflecting the light signal, and reducing the influence of the scattering of the light signal on the light reception of the detector, thereby affecting the accuracy of the detection effect.

[0064] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rapid detection device for food contaminants based on spectral technology, comprising a main body (1), a light tube (101) fixedly connected to the bottom inner wall of the main body (1), an electric push rod fixedly connected to the right inner wall of the main body (1), a filter (102) fixedly connected to the output end of the electric push rod, a motor (103) fixedly connected to the bottom inner wall of the main body (1), a sawtooth cylinder (104) slidably connected to the outer surface of the output end of the motor (103), two support plates fixedly connected to the bottom of the sawtooth cylinder (104), a side of the support plate away from the sawtooth cylinder (104) is fixedly connected to the inner wall of the main body (1), a sealing cover is hinged on the top of the main body (1), and a detector is fixedly connected to the front inner wall of the main body (1), characterized in that: Also includes; The detection mechanism (2) comprises a spring frame (202) connected to the top of the motor (103), the outer surface of the spring frame (202) being slidably connected to a placement plate (201), the top inner wall of the spring frame (202) being fixedly connected to the top of the placement plate (201), and the bottom of the spring frame (202) being rotatably connected to a second sawtooth cylinder (203); The auxiliary mechanism (3) comprises a plurality of fixed cylinders (301) fixedly connected to a side of a placement plate (201) close to the light tube (101), a rectangular groove is provided on the side wall of the fixed cylinder (301), a B-shaped groove (302) is provided on the inner wall of the fixed cylinder (301), a plurality of sliding grooves are provided on the bottom outer wall of the fixed cylinder (301), a plurality of air inlet holes are provided on the bottom of the fixed cylinder (301), the top of the air inlet hole penetrates through the bottom inner wall of the fixed cylinder (301), an inner cylinder (303) is fixedly connected to the bottom inner wall of the fixed cylinder (301), and an elastic ring (304) is fixedly connected to the inside of the 301 main body (1).

2. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 1 is characterized in that: A moving mechanism (4) is arranged inside the fixed cylinder (301), and the moving mechanism (4) comprises a plurality of return springs fixedly connected to the outer wall of the bottom of the placement plate (201), and the bottoms of the plurality of return springs are fixedly connected to a sliding cylinder (401).

3. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 2 is characterized in that: An auxiliary rod is fixedly connected to the outer surface of the sliding cylinder (401), and one end of the auxiliary rod away from the sliding cylinder (401) penetrates the outer wall of the rectangular groove and extends between the first sawtooth cylinder (104) and the second sawtooth cylinder (203).

4. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 3 is characterized in that: A plurality of obtuse-angled plates (402) are fixedly connected to the bottom of the sliding cylinder (401); an arc-shaped groove is provided on a side of the obtuse-angled plate (402) close to the fixed cylinder (301); a sliding block (403) is slidably connected inside the arc-shaped groove; a side of the sliding block (403) away from the obtuse-angled plate (402) is rotatably connected to a spherical rod; a side of the obtuse-angled plate (402) close to the spherical rod is rotatably connected to an intermediate rod (404); an end of the intermediate rod (404) away from the obtuse-angled plate (402) is rotatably connected to the inner wall of the fixed cylinder (301).

5. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 4 is characterized in that: The fixed cylinder (301) is provided with a sliding mechanism (5) inside, the sliding mechanism (5) comprises a flexible layer (501) fixedly connected between the two obtuse-angle plates (402), the bottoms of several flexible layers (501) are fixedly connected with an annular flexible belt, the side of the annular flexible belt away from the flexible layer (501) is fixedly connected with the inner wall of the fixed cylinder (301), the side wall of the flexible layer (501) is fixedly connected with a one-way plate (502), the one-way plate (502) is made of elastic material, the bottom of the flexible layer (501) is provided with a sliding ring (503), the top of the sliding ring (503) is rotatably connected with the side wall of the spherical rod, the outer surface of the sliding ring (503) is fixedly connected with a short rod, and the end of the short rod away from the sliding ring (503) is slidably connected to the inside of the B-shaped groove (302); Wherein, the bottom of the sliding ring (503) is fixedly connected with a piston ring.

6. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 5 is characterized by: A buffer mechanism (6) is arranged inside the fixed cylinder (301), and the buffer mechanism (6) comprises two elastic plates (601) fixedly connected to the side of the obtuse-angled plate (402) away from the fixed cylinder (301); the two elastic plates (601) are fixedly connected to the side away from the sliding cylinder (401) with a triangular plate (602); the side of the triangular plate (602) close to the sliding cylinder (401) is in contact with the side wall of the sliding cylinder (401); two elastic rods are fixedly connected between the two triangular plates (602); the inner walls of a plurality of the spherical rods are fixedly connected with a flexible sleeve (603); the side walls of the flexible sleeve (603) are fixedly connected with a plurality of one-way plates (604); the one-way plates (604) are made of elastic material.

7. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 6 is characterized by: A cleaning mechanism (7) is arranged inside the fixed cylinder (301), and the cleaning mechanism (7) comprises an air jet ring (701) fixedly connected to the inner wall of the inner cylinder (303); a plurality of air jet one-way tubes (702) are fixedly connected to a side of the air jet ring (701) close to the fixed cylinder (301); one end of the air jet one-way tube (702) away from the air jet ring (701) penetrates the outer wall of the inner cylinder (303) and is connected to the interior of the fixed cylinder (301); and the outer wall of the air jet one-way tube (702) is fixedly connected to the outer wall of the fixed cylinder (301); A plurality of air inlet grooves (703) are provided inside the fixed cylinder (301), and a one-way valve is rotatably connected inside the air inlet groove (703).

8. The device for rapid detection of food contaminants based on spectroscopy technology according to claim 7 is characterized in that: A reflective mechanism (8) is provided at the bottom of the fixed cylinder (301), and the reflective mechanism (8) comprises a plurality of elliptical plates (801) fixedly connected to the bottom of the fixed cylinder (301), the elliptical plates (801) being made of elastic material, a side of the elliptical plates (801) close to the sliding groove being rotatably connected to a spring plate (802), a side of the spring plate (802) away from the elliptical plates (801) being slidably connected to the inside of the sliding groove, a side of the spring plate (802) close to the jet ring (701) being fixedly connected to the inner wall of the sliding groove, an outer wall of the elliptical plates (801) being fixedly connected to a reflective plate (803), and a rubber layer (804) being fixedly connected between two of the elliptical plates (801).

9. A method for using a food contaminant rapid detection device based on spectroscopy technology, characterized in that: Using the food contaminant rapid detection device based on spectroscopy technology as claimed in claim 8, the method comprises the following steps: S1: Place the sample tube; S2: Equipment startup; S3: Rotation detection.

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