CN112557382B - Food transgenic component detection device - Google Patents
Food transgenic component detection device Download PDFInfo
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- CN112557382B CN112557382B CN202011356957.1A CN202011356957A CN112557382B CN 112557382 B CN112557382 B CN 112557382B CN 202011356957 A CN202011356957 A CN 202011356957A CN 112557382 B CN112557382 B CN 112557382B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
The invention discloses a device for detecting transgenic components in food, which comprises: the inner parts of the two vertical parts of the U-shaped pipe are respectively internally connected with a piston; the two baffle plates are vertically and internally connected inside the horizontal part of the U-shaped pipe; the sample frame is rotatably arranged in the sample processing chamber; and the nitrogen pressure tank is fixedly arranged on the outer wall of the U-shaped pipe, and the air outlet of the nitrogen pressure tank is communicated with the inside of the sample processing chamber. The invention can detect the transgenic ingredients in the food on the sale site, and determine whether the food contains the transgenic ingredients by observing the color change of the detection test paper, so as to meet the requirement of consumers on obtaining the information whether the food contains the transgenic ingredients on the site, and the consumers can purchase the food more confidently.
Description
Technical Field
The invention relates to the technical field of food detection equipment. More specifically, the invention relates to a device for detecting transgenic components in food.
Background
A transgenic food refers to a transgenic biological line obtained by using transgenic biotechnology (transgenic biotechnology refers to a novel breeding technology for introducing exogenous genes into the genome of a specific biological species and effectively expressing corresponding products), and food produced by using the transgenic organisms as direct food or raw materials is called transgenic food. The transgenic food has the advantages of increasing crop yield, reducing production cost, enhancing the capability of crops for resisting insect pests, viruses and the like, improving the storage stability of agricultural products and the like, has the defect of being not overlooked, and can generate a plurality of unpredictable changes in genetic engineering bodies when the transgenic food is subjected to biological gene transfer.
Although the event that transgenic food harms human bodies has not occurred in the world so far, people still hold a doubtful attitude about the transgenic food due to the unpredictable change factors, and in order to enable consumers to have the right to know and choose the transgenic food, the transgenic food is detected and identified so that the consumers can identify the transgenic food; some consumers are in doubt about the authenticity of the mark, and in order to ensure that the consumers purchase food with confidence, the consumers have more urgent need for the food to be capable of detecting whether the food is transgenic food on site. However, the existing transgenic food detection usually needs to be processed into liquid samples, and the processing process is mostly completed in a laboratory and cannot be carried out on-site detection at a sale site.
Therefore, there is a need for a transgenic component detection device for food that can detect transgenic components in the field of sale so that consumers can know whether the food purchased from the device contains transgenic components in the field, and eliminate the worry of consumers about purchasing food.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
Still another object of the present invention is to provide a device for detecting transgenic components in food, which can detect transgenic components in food at a selling site, and determine whether the food contains transgenic components by observing the color change of the detection test paper, so as to satisfy the requirement of consumers for obtaining information on whether the food contains transgenic components at the site, and thus the consumers can purchase the food more securely. .
To achieve these objects and other advantages in accordance with the present invention, there is provided an apparatus for detecting a transgenic component in a food product, comprising:
the U-shaped pipe is hollow and has two open ends, and is made of transparent materials; a piston is horizontally connected in each of the two vertical parts of the U-shaped pipe; one of the vertical parts contains a washing solution, the other vertical part contains a buffer solution, a groove is formed in the inner wall of the other vertical part close to the lower end, transgenic test paper is vertically placed in the groove, the opening end of the groove is sealed and covered by a partition plate, a through hole is formed in the partition plate, and a first electromagnetic valve is arranged in the through hole; the top of the horizontal part of the U-shaped pipe is provided with a cover body which can be opened/closed;
the two baffles are vertically and internally connected with the inside of the horizontal part of the U-shaped pipe, and the two baffles and the inner wall of the horizontal part of the U-shaped pipe form a sample processing chamber; a material guide port which is communicated along the length direction of the horizontal part of the U-shaped pipe is arranged in the middle of any baffle plate, and a second electromagnetic valve is arranged in any material guide port;
the sample frame is of a hollow cylindrical structure arranged in the sample processing chamber, the top of the sample frame is open, and the sample frame is rotatably connected with the inner wall of the U-shaped pipe through a vertically arranged rotating shaft; a plurality of filtering holes are formed in the circumferential side surface of the sample frame; the vertical downward projection of the cover body is contained in the sample frame; the sample frame contains food powder to be tested;
and the nitrogen pressure tank is fixedly arranged on the outer wall of the U-shaped pipe, and an air outlet of the nitrogen pressure tank is communicated with the inside of the sample processing chamber.
Preferably, the apparatus for detecting transgenic components in food further comprises a transmission mechanism, which comprises:
the cover body is covered at the upper end of the U-shaped pipe, and the bottom of the cover body is connected with the outer walls of the upper ends of the two vertical parts of the U-shaped pipe;
one piston is correspondingly provided with one vertical rod, any vertical rod is vertically arranged, the lower end of the vertical rod is fixedly connected with the top of the corresponding piston, and the upper end of the vertical rod vertically extends upwards; the outer walls of the two vertical rods are provided with external threads, and the external threads of the two vertical rods are arranged in opposite directions;
the lower end of any sleeve is coaxially sleeved at the upper end of the vertical rod corresponding to the sleeve, and the upper end of the sleeve extends vertically upwards and is rotatably connected with the inner wall of the cover body; the inner wall of the sleeve is provided with an internal thread matched with the external thread on the corresponding vertical rod;
one sleeve is correspondingly provided with one first gear disc, and any first gear disc is fixedly sleeved at the upper end of the sleeve corresponding to the first gear disc;
the second gear wheel disc, its level is located between two first gear wheels and all meshes with two first gear wheels, the fixed free end of locating the output shaft of motor of second gear wheel disc, the motor set firmly in on the cover body.
Preferably, the apparatus for detecting transgenic components in food further comprises:
the first gear disc is correspondingly provided with a ratchet wheel, any ratchet wheel is rotatably sleeved on the sleeve corresponding to the ratchet wheel and is positioned below the first gear disc corresponding to the ratchet wheel, and the ratchet wheel is selectively linked with the first gear disc corresponding to the ratchet wheel through a first pawl;
the clockwork mechanism is horizontally positioned between the two vertical parts of the U-shaped pipe and is positioned below the second gear wheel disc, and the clockwork mechanism comprises a clockwork handle, a clockwork box and a clockwork gear wheel; the free end of the clockwork handle extends vertically upwards;
the third gear disc is rotatably sleeved at the free end of the clockwork handle and is positioned between the two ratchet wheels, and the third gear disc is selectively linked with the free end of the clockwork handle through a second pawl; a fourth gear disc is arranged between one side of the third gear disc and one of the ratchet wheels, the fourth gear disc is respectively meshed with the third gear disc and the other ratchet wheel, and the other side of the third gear disc is meshed with the other ratchet wheel;
the dwang, its axis with the coincidence of pivot axis, the upper end of dwang with the middle part rigid coupling of clockwork spring toothed disc, the vertical downwardly extending of lower extreme extend the outer wall of the horizontal part of U-shaped pipe, and with the pivot rigid coupling.
Preferably, in the apparatus for detecting a transgenic component in a food, a gasket is laid on a circumferential side wall of any one of the pistons.
Preferably, the transgenic component detection device in food, be equipped with a pair of spout respectively on the inner wall of two vertical portions of U-shaped pipe, arbitrary spout is vertical downwardly extending, and the both sides of arbitrary piston are equipped with a slider respectively, and a slider slides and blocks and locates in a spout.
Preferably, in the apparatus for detecting transgenic components in food, the fourth gear plate is rotatably sleeved on the free end of the vertical part of the L-shaped connecting rod, and the free end of the horizontal part of the L-shaped connecting rod is fixedly connected with the outer wall of the U-shaped pipe.
The invention at least comprises the following beneficial effects:
1. the invention can detect the transgenic ingredients in the food in the sale field, and determine whether the food contains the transgenic ingredients by observing the color change of the detection test paper so as to meet the requirement of consumers on obtaining the information whether the food contains the transgenic ingredients in the field and ensure that the consumers can purchase the food more confidently;
2. the invention is provided with the transmission mechanism, realizes that one motor drives the two pistons to move up and down, reduces the use of parts, simplifies the equipment structure, reduces the equipment cost and improves the economic practicability of the invention;
3. the invention is provided with the spring box for energy storage, the rotating force of the two sleeves is stored through the spring rings of the spring box in the process that the two pistons move up and down, and the spring rings automatically release energy after the two pistons move to positions, so that the rotating shaft is driven to rotate, the sample frame is driven to rotate, and the samples in the sample frame can be well mixed with liquid.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view showing the construction of a device for detecting a transgenic component in a food according to the present invention;
FIG. 2 is a schematic view showing a structure of the apparatus for detecting a transgenic component in a food according to the present invention, in which one of the pistons is moved downward;
FIG. 3 is a schematic view showing another structure of the apparatus for detecting a transgenic component in food according to the present invention, in which the piston is moved downward.
Description of reference numerals: 1-U-shaped tube 11-detection test paper 2-piston 3-baffle 4-sample frame 51-cover 52-vertical rod 53-sleeve 531-first gear plate 54-second gear plate 55-motor 61-ratchet 62-first pawl 63-third gear plate 64-fourth gear plate 641-connecting rod 65-spring box 651-spring gear plate 66-rotating rod.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or combinations thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in FIGS. 1 to 3, the present invention provides a device for detecting transgenic components in food, comprising:
the U-shaped pipe 1 is hollow and two ends of the U-shaped pipe are open, and the U-shaped pipe 1 is made of transparent materials; the inner parts of the two vertical parts of the U-shaped pipe 1 are respectively and horizontally connected with a piston 2, the circumferential side wall of any piston 2 is hermetically connected with the inner wall of the vertical part of the U-shaped pipe 1, and the piston 2 can move up and down relative to the U-shaped pipe 1; one of the vertical parts contains a washing solution, the other vertical part contains a buffer solution, a groove is arranged on the inner wall of the other vertical part close to the lower end, a transgenic test paper 11 is vertically placed in the groove, the opening end of the groove is sealed and covered by a partition plate, a through hole is arranged on the partition plate, and a first electromagnetic valve (capable of opening/closing the through hole) is arranged in the through hole; the top of the horizontal part of the U-shaped pipe 1 is provided with a cover body which can be opened/closed;
the two baffle plates 3 are vertically and internally connected with the inside of the horizontal part of the U-shaped pipe 1, and the two baffle plates 3 and the inner wall of the horizontal part of the U-shaped pipe 1 form a sample processing chamber; a material guide port which is communicated along the length direction of the horizontal part of the U-shaped pipe 1 is arranged in the middle of any baffle 3, and a second electromagnetic valve (capable of opening/closing the material guide port) is arranged in any material guide port;
the sample frame 4 is of a hollow cylindrical structure arranged in the sample processing chamber, the top of the sample frame 4 is open, and the sample frame is rotatably connected with the inner wall of the U-shaped pipe 1 through a vertically arranged rotating shaft; a plurality of filtering holes are formed in the circumferential side surface of the sample frame 4; the vertical downward projection of the cover body is contained in the sample frame 4; the sample frame 4 contains food powder to be tested;
and the nitrogen pressure tank is fixedly arranged on the outer wall of the U-shaped pipe 1, and an air outlet of the nitrogen pressure tank is communicated with the inside of the sample processing chamber.
In the technical scheme, the invention can detect the transgenic ingredients in the food on the sale site, and determine whether the food contains the transgenic ingredients by observing the color change of the detection test paper 11, so as to meet the requirement of a consumer on-site acquisition of the information whether the food contains the transgenic ingredients, and the consumer can purchase the food more securely.
According to the invention, food to be detected is crushed and placed in a sample frame 4, a cover body is closed, two second electromagnetic valves are closed, a sample processing chamber forms a closed space, a nitrogen pressure tank is opened to inflate the sample processing chamber, then corresponding liquid is injected into two vertical parts of a U-shaped pipe 1, washing liquid is injected into one vertical part, and water can be selected and ethanol can be selected; a buffer solution is injected into one vertical part and is a special solvent for transgene detection, and the weight of the liquid on the two sides is kept consistent;
then, two second electromagnetic valves are opened, because the weights of the liquid on the two sides are the same, the pressure generated by the air column in the sample processing chamber is the same, the whole U-shaped tube 1 is kept in a balanced state, one piston 2 corresponding to the cleaning solution moves downwards, the air column in the sample processing chamber pushes the other piston 2 to automatically move upwards, the cleaning solution is pushed into the sample processing chamber, the food to be detected can be washed, the sample frame 4 rotates relative to the U-shaped tube 1, and the cleaning solution can effectively remove impurities such as residual medicines on the surface of the food, so that the accuracy of a transgenic component detection result is improved; then, the piston 2 of the other piston 2 corresponding to the buffer solution moves downwards, the washing liquid in the detection chamber is discharged, one piston 2 can be pushed repeatedly, then the other piston 2 is pushed, and the food to be detected is washed for multiple times;
after the food to be detected is washed, the other piston 2 can be pushed downwards, the buffer solution is pushed into the sample frame 4, the sample frame 4 rotates relative to the U-shaped pipe 1, the buffer solution dissolves the food to be detected, then one piston 2 is pushed downwards, the buffer solution returns to the vertical part, meanwhile, the first electromagnetic valve is opened, the buffer solution can moisten the detection test paper 11 in the groove, and whether the food to be detected contains transgenic ingredients is judged by observing the color change of the detection test paper 11; the invention has simple structure and convenient operation, can quickly obtain the detection result and meet the requirement of field test of food market.
In another technical scheme, the device for detecting transgenic components in food further comprises a transmission mechanism, which comprises:
the cover body 51 is covered at the upper end of the U-shaped pipe 1, and the bottom of the cover body 51 is connected with the outer walls of the upper ends of the two vertical parts of the U-shaped pipe 1;
one piston 2 is correspondingly provided with one vertical rod 52, any vertical rod 52 is vertically arranged, the lower end of the vertical rod 52 is fixedly connected with the top of the corresponding piston 2, and the upper end of the vertical rod 52 vertically extends upwards; the outer walls of the two vertical rods 52 are provided with external threads, and the external threads of the two vertical rods are arranged in opposite directions;
one vertical rod 52 of the two sleeves 53 is correspondingly provided with one sleeve 53, the lower end of any sleeve 53 is coaxially sleeved at the upper end of the corresponding vertical rod 52, and the upper end of the sleeve 53 vertically extends upwards and is rotationally connected with the inner wall of the cover body 51; the inner wall of the sleeve 53 is provided with an internal thread matched with the external thread on the corresponding vertical rod 52;
one sleeve 53 of the two first gear disks 531 is correspondingly provided with one first gear disk 531, and any one first gear disk 531 is fixedly sleeved at the upper end of the corresponding sleeve 53;
and the second gear disc 54 is horizontally positioned between the two first gear discs 531 and is meshed with the two first gear discs 531, the second gear disc 54 is fixedly sleeved at the free end of the output shaft of the motor 55, and the motor 55 is fixedly arranged on the cover body 51.
In the technical scheme, the invention is provided with the transmission mechanism, so that one motor 55 drives the two pistons 2 to move up and down, the use of parts is reduced, the equipment structure is simplified, the equipment cost is reduced, and the economical practicability of the invention is improved. The motor 55 is started to rotate to drive the two first gear discs 531 to rotate so as to drive the two sleeves 53 to rotate, the rotation of any one sleeve 53 can drive the corresponding vertical rod 52 to move up and down so as to drive the piston 2 to move up and down, and the external threads on the outer surfaces of the two vertical rods 52 are set to be opposite, so that the effect that one motor 55 drives the two vertical rods 52 to move reversely, namely one vertical rod 52 moves upwards and one vertical rod 52 moves downwards, so that the up and down movement of the two pistons 2 are opposite, one piston 2 moves downwards, and the other piston 2 moves upwards; specifically, when one of the pistons 2 is required to move downward, the motor 55 rotates in the forward direction, and when the other piston 2 is required to move downward, the motor 55 rotates in the reverse direction.
In another technical solution, the device for detecting transgenic ingredients in food, the transmission mechanism further comprises:
two ratchet wheels 61, one ratchet wheel 61 is correspondingly arranged on one first gear disc 531, any ratchet wheel 61 is rotatably sleeved on the corresponding sleeve 53 and is positioned below the corresponding first gear disc 531, and the ratchet wheel 61 and the corresponding first gear disc 531 are selectively linked through a first pawl 62;
a clockwork mechanism horizontally located between the two vertical portions of the hairpin tube 1 and below the second pinion plate 54, the clockwork mechanism including a clockwork handle, a barrel 65, and a clockwork pinion 651; the free end of the clockwork handle extends vertically upwards;
the third gear disc 63 is rotatably sleeved at the free end of the clockwork handle and is positioned between the two ratchet wheels 61, and the third gear disc 63 is selectively linked with the free end of the clockwork handle through a second pawl; a fourth gear disc 64 is arranged between one side of the third gear disc 63 and one of the ratchet wheels 61, the fourth gear disc 64 is respectively meshed with the third gear disc 63 and one of the ratchet wheels 61, and the other side of the third gear disc 63 is meshed with the other ratchet wheel 61;
In the technical scheme, the barrel 65 is arranged for energy storage, the rotating force of the two sleeves 53 is stored through the clockwork coil of the barrel 65 in the process that the two pistons 2 move up and down, and after the two pistons 2 move in place, the clockwork coil automatically releases energy to drive the rotating shaft to rotate, so that the sample frame 4 is driven to rotate, and the sample and liquid in the sample frame 4 can be well mixed.
By arranging the ratchet wheel 61 which can only rotate in one direction, the movement of the piston 2 drives the spring handle to rotate in one direction, and by arranging the second pawl, the third gear plate 63 is ensured to rotate to drive the spring handle to rotate, the spring handle can drive the spring coil to rotate to a screwing state, when the spring coil releases energy, the rotation of the spring handle can not drive the third gear plate 63 to rotate, and further, the two pistons 2 and the motor 55 can not be interfered when the spring releases energy, (when the spring box 65 is energized, the two pistons 2 and the motor 55 can be ensured to be static);
specifically, the method comprises the following steps: the motor 55 rotates forward to drive the two sleeves 53 to rotate, the first gear wheel 531 corresponding to one sleeve 53 (e.g. the right sleeve 53 in fig. 1) is linked with the corresponding ratchet wheel 61, the ratchet wheel 61 rotates forward to drive the fourth gear wheel 64 to rotate in reverse direction, and further drive the third gear wheel 63 to rotate forward, and then drive the spring handle to rotate forward to force the spring to store energy, and the first gear wheel 531 corresponding to the other sleeve 53 is not linked with the corresponding ratchet wheel 61, that is, the rotation of the first gear wheel 531 does not drive the corresponding ratchet wheel 61 to rotate, and the ratchet wheel 61 does not rotate; when the motor 55 rotates in the forward direction, the ratchet wheel 61 corresponding to one of the sleeves 53 drives the clockwork handle to rotate;
the motor 55 rotates in reverse direction to drive the two sleeves 53 to rotate, the first gear wheel 531 corresponding to the other sleeve 53 (e.g. the left sleeve 53 in fig. 1) is linked with the ratchet wheel 61 corresponding to the other sleeve 53, the ratchet wheel 61 rotates in reverse direction to drive the third gear wheel 63 to rotate in forward direction, and then the spring handle is driven to rotate in forward direction to wind up the spring and store energy, while the first gear wheel 531 corresponding to one sleeve 53 is not linked with the ratchet wheel 61 corresponding to the first gear wheel 531, that is, the rotation of the first gear wheel 531 does not drive the ratchet wheel 61 corresponding to the first gear wheel to rotate, and the ratchet wheel 61 does not rotate; that is, when the motor 55 rotates in the reverse direction, the ratchet wheel 61 corresponding to the other sleeve 53 drives the winding handle to wind up.
In another technical scheme, in the transgenic component detection device for food, a sealing gasket is paved on the circumferential side wall of any piston 2. The sealing performance of the piston 2 is improved, the friction force between the piston 2 and the inner wall of the U-shaped pipe 1 is increased, the piston 2 is driven to move up and down by the rotation of the sleeve 53, and then liquid in the vertical portion is pushed to move.
In another technical scheme, the device for detecting the transgenic ingredients in the food is characterized in that a pair of sliding grooves are respectively formed in the inner walls of two vertical parts of the U-shaped pipe 1, any sliding groove vertically extends downwards, two sides of any piston 2 are respectively provided with a sliding block, and one sliding block is slidably clamped in one sliding groove. The rotation of the sleeve 53 is ensured to drive the piston 2 to move up and down relative to the U-shaped tube 1. The outer surface of any slide block and the inner wall of the sliding groove and the laying of the sealing gasket improve the sealing performance of the piston 2.
In another technical solution, in the device for detecting transgenic ingredients in food, the fourth gear plate 64 is rotatably sleeved on the free end of the vertical portion of the L-shaped connecting rod 641, and the free end of the horizontal portion of the L-shaped connecting rod 641 is fixedly connected to the outer wall of the U-shaped pipe 1. The fourth gear plate 64 is rotatably connected with the U-shaped pipe 1.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (5)
1. A device for detecting transgenic components in food, comprising:
the U-shaped pipe is hollow and has two open ends, and is made of transparent materials; a piston is horizontally connected in each of the two vertical parts of the U-shaped pipe; one of the vertical parts contains a washing solution, the other vertical part contains a buffer solution, a groove is formed in the inner wall, close to the lower end, of the other vertical part, transgenic test paper is vertically placed in the groove, the opening end of the groove is covered by a partition plate in a sealing mode, a through hole is formed in the partition plate, and a first electromagnetic valve is arranged in the through hole; the top of the horizontal part of the U-shaped pipe is provided with a cover body which can be opened/closed;
the two baffles are vertically and internally connected with the inside of the horizontal part of the U-shaped pipe, and the two baffles and the inner wall of the horizontal part of the U-shaped pipe form a sample processing chamber; a material guide port which is communicated along the length direction of the horizontal part of the U-shaped pipe is arranged in the middle of any baffle, and a second electromagnetic valve is arranged in any material guide port;
the sample frame is of a hollow cylindrical structure arranged in the sample processing chamber, the top of the sample frame is open, and the sample frame is rotatably connected with the inner wall of the U-shaped pipe through a vertically arranged rotating shaft; a plurality of filtering holes are formed in the circumferential side surface of the sample frame; the vertical downward projection of the cover body is contained in the sample frame; the sample frame contains food powder to be tested;
the nitrogen pressure tank is fixedly arranged on the outer wall of the U-shaped pipe, and an air outlet of the nitrogen pressure tank is communicated with the interior of the sample processing chamber;
a drive mechanism, comprising:
the cover body covers the upper end of the U-shaped pipe, and the bottom of the cover body is connected with the outer walls of the upper ends of the two vertical parts of the U-shaped pipe;
one piston is correspondingly provided with one vertical rod, any vertical rod is vertically arranged, the lower end of the vertical rod is fixedly connected with the top of the corresponding piston, and the upper end of the vertical rod vertically extends upwards; the outer walls of the two vertical rods are provided with external threads, and the external threads of the two vertical rods are arranged in opposite directions;
the lower end of any sleeve is coaxially sleeved at the upper end of the vertical rod corresponding to the sleeve, and the upper end of the sleeve extends vertically upwards and is rotatably connected with the inner wall of the cover body; the inner wall of the sleeve is provided with an internal thread matched with the external thread on the corresponding vertical rod;
one sleeve is correspondingly provided with one first gear disc, and any first gear disc is fixedly sleeved at the upper end of the sleeve corresponding to the first gear disc;
the second gear wheel disc, its level is located between two first gear wheels and all meshes with two first gear wheels, the fixed free end of locating the output shaft of motor of second gear wheel disc, the motor set firmly in on the cover body.
2. The apparatus for detecting transgenic component in food according to claim 1, wherein the transmission mechanism further comprises:
the first gear disc is correspondingly provided with a ratchet wheel, any ratchet wheel is rotatably sleeved on the sleeve corresponding to the ratchet wheel and is positioned below the first gear disc corresponding to the ratchet wheel, and the ratchet wheel is selectively linked with the first gear disc corresponding to the ratchet wheel through a first pawl;
the clockwork mechanism is horizontally positioned between the two vertical parts of the U-shaped pipe and is positioned below the second gear wheel disc, and the clockwork mechanism comprises a clockwork handle, a clockwork box and a clockwork gear wheel disc; the free end of the clockwork handle extends vertically upwards;
the third gear disc is rotatably sleeved at the free end of the clockwork handle and is positioned between the two ratchet wheels, and the third gear disc is selectively linked with the free end of the clockwork handle through a second pawl; a fourth gear disc is arranged between one side of the third gear disc and one of the ratchet wheels, the fourth gear disc is respectively meshed with the third gear disc and the other ratchet wheel, and the other side of the third gear disc is meshed with the other ratchet wheel;
the dwang, its axis with the coincidence of pivot axis, the upper end of dwang with the middle part rigid coupling of clockwork spring toothed disc, the vertical downwardly extending of lower extreme extend the outer wall of the horizontal part of U-shaped pipe, and with the pivot rigid coupling.
3. The apparatus for detecting a transgenic component in a food according to claim 2, wherein a gasket is laid on the circumferential side wall of any one of the pistons.
4. The apparatus for detecting transgenic components in food according to claim 3, wherein a pair of sliding grooves are formed on the inner walls of the two vertical portions of the U-shaped tube, each sliding groove extends vertically downward, and a sliding block is disposed on each of the two sides of each piston and slidably engaged with the corresponding sliding groove.
5. The apparatus for detecting transgenic components in food according to claim 4, wherein the fourth gear plate is rotatably sleeved on the free end of the vertical portion of the L-shaped connecting rod, and the free end of the horizontal portion of the L-shaped connecting rod is fixedly connected to the outer wall of the U-shaped tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356957.1A CN112557382B (en) | 2020-11-27 | 2020-11-27 | Food transgenic component detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356957.1A CN112557382B (en) | 2020-11-27 | 2020-11-27 | Food transgenic component detection device |
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| CN112557382A CN112557382A (en) | 2021-03-26 |
| CN112557382B true CN112557382B (en) | 2022-09-27 |
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| CN202011356957.1A Active CN112557382B (en) | 2020-11-27 | 2020-11-27 | Food transgenic component detection device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884709A (en) * | 2014-04-09 | 2014-06-25 | 北京思弗威生物科技有限公司 | Portable food safety detector |
| CN206772991U (en) * | 2017-06-07 | 2017-12-19 | 运城学院 | GM food portable detecting device |
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