CN115597904A - Sample extraction system and sampling method for pesticide residue detection - Google Patents
Sample extraction system and sampling method for pesticide residue detection Download PDFInfo
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- CN115597904A CN115597904A CN202211206802.9A CN202211206802A CN115597904A CN 115597904 A CN115597904 A CN 115597904A CN 202211206802 A CN202211206802 A CN 202211206802A CN 115597904 A CN115597904 A CN 115597904A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sample extraction system for detecting pesticide residues and a sampling method, and the sample extraction system comprises a base, a mounting plate, a sampling mechanism and a lifting mechanism, wherein the mounting plate is fixedly arranged on one side of the base, the lifting mechanism is arranged on the mounting plate, the sampling mechanism is arranged at the bottom of the lifting mechanism, the lifting mechanism comprises a motor, a screw rod, a guide rod I, a guide sleeve II and a pressing plate, the sampling mechanism comprises a cover body, the cover body is a cuboid shell with a closed top and an open bottom, when sampling is carried out, plant green leaves are placed on the base, then the motor drives the screw rod to rotate, so that the pressing plate is driven to move downwards along the guide rod, then the cover body is covered on the base, the plant green leaves are positioned in the cover body, a scraper can cut the plant green leaves, then a suction machine can discharge and collect the cut plant green leaves through a discharge pipe, so as to sample the green leaves, the sampling process is carried out in the cover body, and can avoid interference of green leaves caused by external pollutants.
Description
Technical Field
The invention relates to the technical field of pesticide residue detection, in particular to a sample extraction system and a sampling method for pesticide residue detection.
Background
The development of agricultural industrialization makes the production of agricultural products depend on exogenous substances such as pesticides, antibiotics and hormones. The overproof pesticide residue also affects the trade of agricultural products, the problem of the pesticide residue is highly emphasized in all countries in the world, the pesticide residue in various agricultural and sideline products is regulated to an increasingly strict limit standard, when the pesticide residue in fruits and vegetables is detected, the pesticide residue on the skins and small pieces of vegetable leaves of the fruits and vegetables needs to be detected, but the vegetable leaves are easily mixed with impurities such as dust, hay and the like to affect the detection result, and when the skins and small pieces of vegetable leaves of the fruits and vegetables are exposed in the air for direct detection, the skins and small pieces of vegetable leaves of the fruits and vegetables are easily polluted by the external environment and also can affect the detection result.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a sample extraction system and a sampling method for detecting pesticide residues.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
A sample extraction system and a sampling method for detecting pesticide residues comprise:
the automatic sampling device comprises a base, a mounting plate, a sampling mechanism and a lifting mechanism, wherein the mounting plate is fixedly arranged on one side of the base, the lifting mechanism is arranged on the mounting plate, the sampling mechanism is arranged at the bottom of the lifting mechanism, the lifting mechanism comprises a motor, a lead screw, a first guide rod, a first guide sleeve, a second guide sleeve and a pressing plate, the motor is arranged at the top of the mounting plate, an output shaft of the motor is vertically downward, the pressing plate is positioned below the motor, the pressing plate is horizontally arranged, the first guide sleeve and the second guide sleeve are vertically arranged at the top of the pressing plate, the top of the lead screw is coaxially and fixedly connected with an output shaft end of the motor, and the bottom end of the lead screw extends into the first guide sleeve.
As a further improvement of the technical scheme, a trigger assembly is arranged below the pressing plate and comprises a connecting rod, a push block, a guide rail, a second guide pillar, a first connecting plate, a convex block, a second connecting plate and a third connecting plate, wherein the guide rail is horizontally arranged at the top of the cover body, the bottom of the push block is in sliding guide fit with the guide rail through a guide groove, one end of the connecting rod is hinged with the bottom edge of the pressing plate, the other end of the connecting rod is hinged with the end part of the push block, the convex block is arranged at the top of the push block and is provided with a plurality of convex blocks which are uniformly arranged along the length direction of the push block, the convex block is an arc-shaped convex block, the second guide pillar is vertically arranged at the top of the cover body and is close to the edge of the cover body, the top of the second guide pillar is provided with external steps, the second guide pillar is provided with two guide pillars which are arranged in parallel, the connecting plate is arranged on the second guide pillar, and is sleeved with a second spring, one end of the second spring is contacted with an external step at the top of the second guide pillar, the other end of the second spring is contacted with the top surface of the first connecting plate, the second connecting plate is vertically and fixedly connected to the edge of the first connecting plate, the second connecting plate is parallel to the wall of the cover body and is close to the wall of the cover body, the side wall of the second connecting plate is horizontally and fixedly provided with a touch plate, the touch plate is contacted with the top surface of the push block, the third connecting plate is horizontally and fixedly connected to the bottom of the second connecting plate, the wall of the cover body is provided with a guide groove, the guide groove is horizontally arranged and is positioned below the third connecting plate, the end part of the scraper is horizontally provided with a limiting plate, the limiting plate extends into the guide groove and is in sliding fit with the guide groove, the bottom of the third connecting plate is fixedly provided with a clamping groove, the clamping groove is obliquely arranged, the limiting plate is positioned in the clamping groove, the clamping groove comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are fixedly arranged at the bottom of the third connecting plate, the first clamping plate and the second clamping plate are obliquely arranged, the first clamping plate and the second clamping plate are parallel, and the limiting plate is in contact with the inner walls of the first clamping plate and the second clamping plate.
As a further improvement of the technical scheme, a cleaning assembly is arranged on the first support plate and comprises an exhaust casing, an air inlet pipe, an exhaust pipe, a shifting wheel, a gear, a connecting rod and a rack, the exhaust casing is fixedly arranged on one side of the first support plate, the shifting wheel is rotatably arranged in the exhaust casing, the air inlet pipe is communicated with the top of the exhaust casing, the exhaust pipe is communicated with the bottom of the exhaust casing, an exhaust port of the exhaust pipe faces the center of the base, a central shaft of the shifting wheel penetrates through the wall of the exhaust casing, the gear is coaxially and fixedly sleeved on the central shaft end of the shifting wheel, the connecting rod is horizontally arranged, one end of the connecting rod is fixedly connected with the wall of the exhaust casing, the other end of the connecting rod is fixedly connected with the rack, the rack is vertically arranged, and the rack is meshed with the gear.
As a further improvement of the technical scheme, the air inlet port of the air inlet pipe is provided with a filter plate in a matching way.
As a further improvement of the technical scheme, an exhaust port of the exhaust pipe is communicated with an exhaust head, a plurality of exhaust holes are formed in the exhaust head, and the air blowing directions of the exhaust holes are different.
Compared with the prior art, the fruit picker has the advantages that in the using process of the fruit picker, when sampling is carried out, the green leaves of the plants are placed on the base, the green leaves of the plants are located in the cover body, the scraper can cut the green leaves of the plants, then the suction machine can discharge and collect the cut green leaves of the plants through the discharge pipe, so that the green leaves are sampled, the sampling process is carried out in the cover body, the interference of external pollutants on the green leaves can be avoided, the sampling quality is influenced, when the fruits are sampled, the fruits are placed on the base, the scraper can move back and forth along the guide rod two to scrape the epidermis of the fruits, the scraped epidermis can be discharged and collected through the discharge pipe, when the cover body is driven to move downwards by the motor, the rack drives the gear to rotate, so that gas enters the exhaust pipe through the air inlet pipe and then is discharged through the exhaust pipe, and dust and dry grass impurities on the green leaves of the plants can be blown off.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the mounting of the cover of the present invention.
FIG. 3 is a schematic diagram of a trigger assembly according to the present invention.
Fig. 4 is a schematic view of the first connecting plate and the pushing block of the present invention.
Fig. 5 is a schematic connection diagram of a third connecting plate and a clamping groove of the invention.
Fig. 6 is a schematic view of the blade installation of the present invention.
Fig. 7 is a schematic view of the engagement between the engaging groove and the limiting plate according to the present invention.
FIG. 8 is a schematic view of a cleaning assembly of the present invention.
Fig. 9 is a schematic view of the inventive thumb wheel in cooperation with a gear.
Labeled as:
10. a base; 110. mounting a plate; 120. a first support plate; 121. an air exhaust housing; 122. an air inlet pipe; 123. an exhaust duct; 124. a thumb wheel; 125. a gear; 126. a connecting rod; 127. a rack; 128. an exhaust head; 130. a support plate II;
20. a sampling mechanism;
30. a lifting mechanism; 310. a motor; 320. a screw rod; 330. a first guide rod; 340. a first guide sleeve; 350. a second guide sleeve; 360. pressing a plate; 361. a first guide post; 362. a third guide sleeve;
40. a cover body; 410. a discharge pipe; 420. a material suction machine; 430. a trigger component; 431. a connecting rod; 432. a push block; 433. a guide rail; 434. a second guide post; 435. a first connecting plate; 436. a bump; 437. a touch plate; 438. a second connecting plate; 439. connecting plates III; 440. a card slot; 441. a second guide rod; 442. a scraper; 443. a guide groove; 444. a limiting plate; 445. clamping a first plate; 446. and a second clamping plate.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 9, a system for sampling a sample for detecting pesticide residue and a sampling method thereof includes:
the sampling device comprises a base 10, a mounting plate 110, a sampling mechanism 20 and a lifting mechanism 30, wherein the mounting plate 110 is fixedly arranged on one side of the base 10, the lifting mechanism 30 is arranged on the mounting plate 110, the sampling mechanism 20 is arranged at the bottom of the lifting mechanism 30, the lifting mechanism 30 comprises a motor 310, a screw 320, a guide rod I330, a guide sleeve I340, a guide sleeve II 350 and a pressing plate 360, the motor 310 is arranged at the top of the mounting plate 110, an output shaft of the motor 310 is vertically downward, the pressing plate 360 is positioned below the motor 310, the pressing plate 360 is horizontally arranged, the guide sleeve I340 and the guide sleeve II 350 are vertically arranged at the top of the pressing plate 360, the top of the screw 320 is coaxially and fixedly connected with the output shaft end of the motor 310, the bottom end of the screw extends into the guide sleeve I340, the guide rod I330 is arranged on one side of the screw 320 in parallel, the lower end of the guide rod I330 extends into the guide sleeve II 350, the sampling mechanism 20 comprises a cover body 40, the cover body 40 is a cuboid shell with a closed top and an open bottom, a guide sleeve III 362 is vertically and fixedly arranged on the top of the cover body 40, a guide pillar I361 is vertically arranged at the bottom of a press plate 360, the lower end part of the guide pillar I361 extends into the guide sleeve III 362 in a matching manner, a built-in step for preventing the guide pillar I361 from being separated is arranged on the inner wall of the guide sleeve III 362, a spring I is sleeved on the guide pillar I361 and the guide sleeve III 362, a material suction machine 420 is arranged on the top of the cover body 40, the top of the material suction machine 420 is communicated with a material discharge pipe 410, a guide rod II 441 and a scraper 442 are arranged in the cover body 40, the guide rod II 441 is horizontally arranged in the cover body 40, two ends of the guide rod II 441 are fixedly connected with the inner wall of the cover body 40, the guide rod II 441 are arranged in parallel, the scraper 442 is sleeved on the guide rod II 441, the scraper 442 is provided with a plurality of scrapers 442 and uniformly arranged at intervals along the length direction of the guide rod II 441, when sampling, arrange the green leaf of plant in on base 10, motor 310 drive lead screw 320 rotates after that, thereby it moves down along guide bar 330 to drive clamp plate 360, cover body 40 covers on base 10 after that, the green leaf of plant is in cover body 40, scraper 442 can shred the green leaf of plant, after that auto sucking machine 420 can discharge the green leaf of plant after shredding the pipe 410 and collect through arranging, thereby sample the green leaf, the sampling process goes on in cover body 40, can avoid external pollutant to cause the interference to the green leaf, influence the sample quality.
As shown in fig. 2-7, a trigger assembly 430 is disposed below the pressing plate 360, the trigger assembly 430 includes a connecting rod 431, a push block 432, a guide rail 433, a second guide pillar 434, a first connecting plate 435, a projection 436, a second connecting plate 438, and a third connecting plate 439, the guide rail 433 is horizontally disposed on the top of the housing 40, the bottom of the push block 432 forms a sliding guide fit with the guide rail 433 through a guide slot, one end of the connecting rod 431 is hinged to the bottom edge of the pressing plate 360, the other end is hinged to the end of the push block 432, the projection 436 is disposed on the top of the push block 432, the projection 436 is provided with a plurality of projections uniformly arranged along the length direction of the push block 432, the projection 436 is an arc-shaped projection, the second guide pillar 434 is vertically disposed on the top of the housing 40 and close to the edge of the housing 40, the top of the second guide pillar 434 is provided with an external step, the second guide pillar 434 is provided with two and is disposed in parallel, the first connecting plate 435 is sleeved on the second guide pillar 434, a second spring is sleeved on the second guide pillar 434, one end of the second spring is in contact with an external step at the top of the second guide pillar 434, the other end of the second spring is in contact with the top surface of the first connecting plate 435, the second connecting plate 438 is vertically and fixedly connected to the edge of the first connecting plate 435, the second connecting plate 438 is parallel to the wall of the cover body 40 and is close to the wall of the cover body 40, a touch plate 437 is horizontally and fixedly arranged at the side wall of the second connecting plate 438, the touch plate 437 is in contact with the top surface of the push block 432, a third connecting plate 439 is horizontally and fixedly connected to the bottom of the second connecting plate 438, a guide groove 443 is formed in the wall of the cover body 40, the guide groove 443 is horizontally arranged and is located below the third connecting plate 439, a limit plate 444 is horizontally arranged at the end of the scraper 442, the limit plate 444 extends into the guide groove 443 and forms sliding fit with the guide groove 443, a clamping groove 440 is obliquely arranged, the limit plate 444 is located in the clamping groove 440, the clamping groove 440 comprises a first clamping plate 445 and a second clamping plate 446, the first clamping plate 445 and the second clamping plate 446 are fixedly arranged at the bottom of a third connecting plate 439, the first clamping plate 445 and the second clamping plate 446 are obliquely arranged, the first clamping plate 445 and the second clamping plate 446 are parallel, a limiting plate 444 is in contact with the inner walls of the first clamping plate 445 and the second clamping plate 446, when sampling is carried out, plant green leaves are placed on the base 10, then the motor 310 drives the screw rod 320 to rotate, so that the pressing plate 360 is driven to move downwards along the first guiding rod 330, then the cover body 40 covers the base 10, then the motor 310 continues to drive the pressing plate 360 to move downwards, the pushing block 432 is pushed by the connecting rod 431 to move along the guiding rail 433, then the abutting plate 437 sequentially abuts against the plurality of bumps 436, so that the first connecting plate 435 and the second connecting plate 438 reciprocate up and down along the second guiding rod 434, then the third clamping groove 439 and the clamping groove 440 are driven to move up and down, so that the scraper 442 reciprocates along the second guiding rod 441, so that the scraper 442 is driven to further chop the plant green leaves, when sampling is carried out, fruits are placed on the base 10, the fruits are moved by the scraper 442 to scrape the skin of the fruit, and discharged through the collecting pipe 410.
As shown in fig. 1 and 8-9, when the green leaves of the plant are subjected to pesticide residue detection, the green leaves of the plant cannot be washed with water, and when there are many impurities, the detection accuracy of the pesticide residue is affected, for this purpose, a cleaning assembly is arranged on the first support plate 120, the cleaning assembly comprises an exhaust casing 121, an air inlet pipe 122, an exhaust pipe 123, a thumb wheel 124, a gear 125, a connecting rod 126 and a rack 127, the exhaust casing 121 is fixedly arranged on one side of the first support plate 120, the thumb wheel 124 is rotatably arranged in the exhaust casing 121, the air inlet pipe 122 is communicated with the top of the exhaust casing 121, the exhaust pipe 123 is communicated with the bottom of the exhaust casing 121, an exhaust port of the exhaust pipe 123 faces the center of the base 10, a central shaft of the thumb wheel 124 penetrates through the wall of the exhaust casing 121, the gear 125 is coaxially arranged at the central shaft end of the thumb wheel 124, the connecting rod 126 is horizontally arranged, one end of the connecting rod 126 is fixedly connected with the wall of the exhaust casing 121, the other end is fixedly connected with the rack 127, the rack 127 is vertically arranged, the rack is meshed with the gear 125, and when the motor 310 drives the thumb wheel 125 to move, the gear 127, the air inlet pipe 124 rotates to drive the exhaust pipe 121, and then the dust and the dust is blown out of the dust is removed from the exhaust casing 121, so as to the dust, and the dust is blown out of the dust.
More specifically, the air inlet port of the air inlet pipe 122 is provided with a filter plate in a matching manner, and the filter plate can filter air.
More specifically, the air exhaust port of the air exhaust pipe 123 is communicated with an air exhaust head 126, a plurality of air exhaust holes are formed in the air exhaust head 126, the air blowing directions of the air exhaust holes are different, the air flow rate can be improved when air is blown out through the air exhaust holes of the air exhaust head 126, and dust and hay impurities on plant green leaves can be blown off conveniently.
The working principle is as follows:
in the using process of the invention, when sampling is carried out, plant green leaves are placed on the base 10, then the motor 310 drives the screw 320 to rotate, so as to drive the pressure plate 360 to move downwards along the first guide rod 330, then the cover body 40 covers the base 10, the plant green leaves are positioned in the cover body 40, the scraper 442 can cut the plant green leaves, then the suction machine 420 can discharge and collect the cut plant green leaves through the discharge pipe 410, so as to sample the green leaves, the sampling process is carried out in the cover body 40, so as to avoid interference of external pollutants on the green leaves and influence on the sampling quality, when sampling is carried out, the plant green leaves are placed on the base 10, then the motor 310 drives the screw 320 to rotate, so as to drive the pressure plate 360 to move downwards along the first guide rod 330, then the cover body 40 covers the base 10, then the motor 310 continues to drive the pressure plate 360 to move downwards, the connecting rod 431 pushes the push block 432 to move along the guide rail 433, then the contact plate 437 sequentially contacts with the plurality of bumps 436, so that the first connecting plate 435 and the second connecting plate 438 reciprocate along the second guide post 434, and then the third connecting plate 439 and the clamping groove 440 reciprocate, so as to drive the scraper 442 to reciprocate along the second guide rod 441, thereby further chopping the green leaves of the plant, when the fruit is sampled, the fruit is placed on the base 10, the scraper 442 reciprocates along the second guide rod 441 to scrape the skin of the fruit, the scraped skin can be discharged and collected through the discharge pipe 410, when the motor 310 drives the cover body 40 to move downwards, the rack 127 drives the gear 125 to rotate, thereby driving the dial wheel 124 to rotate, so that the gas enters the shell 121 through the air inlet pipe 122, and then is discharged through the exhaust pipe 123, thereby blowing off the dust and dry grass impurities on the green leaves of the plant.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (6)
1. A sample extraction system and a sampling method for detecting pesticide residues are characterized by comprising the following steps:
s1, a sampling process of plant green leaves:
the green leaves are placed on the base, then the motor drives the screw rod to rotate, so that the pressing plate is driven to move downwards along the guide rod, then the cover body covers the base, the green leaves are positioned in the cover body, the scraper can cut the green leaves, then the suction machine can discharge and collect the cut green leaves through the discharge pipe, so that the green leaves are sampled, the sampling process is carried out in the cover body, and the interference of external pollutants on the green leaves can be avoided;
s2, impurity removal process of plant green leaves:
when the motor drives the cover body to move downwards, the rack drives the gear to rotate, so that the shifting wheel is driven to rotate, and therefore, air enters the exhaust shell through the air inlet pipe and is exhausted through the exhaust pipe, and dust and hay impurities on the plant green leaves can be blown off;
s2, sampling the fruit skin:
when sampling, arrange the fruit in on the base, motor drive lead screw rotates after that, thereby drive the clamp plate and move along the guide bar downshifting, cover the body cover on the base after that, the motor continues to drive the clamp plate and moves down after that, the connecting rod promotes the ejector pad and moves along the guide rail, a plurality of lugs of conflict in proper order are contradicted to the conflict board after that, thereby make connecting plate one, connecting plate two reciprocates along two guide pillars, after that, drive connecting plate three, the draw-in groove reciprocates, thereby drive the scraper and along two reciprocating motion of guide bar, the scraper can strike off the epidermis of fruit along two reciprocating motion of guide bar, the epidermis after striking off can be collected through row's material pipe discharge.
2. The system for sampling and extracting pesticide residue according to claim 1, comprising:
the sampling mechanism comprises a cover body, the cover body is closed at the top, open-ended cuboid casing in the bottom, the vertical fixed guide pin bushing three that is provided with in top of the cover body, the vertical guide pillar one that is provided with in bottom of clamp plate, the lower tip matching of guide pillar one stretches into in the guide pin bushing three, the inner wall department of guide pin bushing three is provided with the built-in step that is used for avoiding guide pillar one to break away from, guide pillar one, the cover is equipped with spring one on the guide pin bushing three, the top of the cover body is provided with auto sucking machine, auto sucking machine's top intercommunication has row material pipe, the internal guide bar two that is provided with of cover, the scraper, guide bar two levels set up in the cover body, the both ends and the internal wall fixed connection of cover of guide bar two, guide bar two is provided with two and is parallel arrangement, the scraper cover is located on guide bar two, the scraper is provided with a plurality ofly and along the even interval arrangement of length direction of guide bar two.
3. The system for extracting samples for detecting pesticide residues as claimed in claim 2, wherein a trigger assembly is arranged below the pressing plate, the trigger assembly comprises a connecting rod, a push block, a guide rail, a second guide pillar, a first connecting plate, a lug, a second connecting plate and a third connecting plate, the guide rail is horizontally arranged at the top of the cover body, the bottom of the push block forms sliding guide fit with the guide rail through a guide groove, one end of the connecting rod is hinged with the bottom edge of the pressing plate, the other end of the connecting rod is hinged with the end part of the push block, the lug is arranged at the top of the push block, the lug is provided with a plurality of lugs which are uniformly arranged along the length direction of the push block, the lug is an arc-shaped lug, the second guide pillar is vertically arranged at the top of the cover body and close to the edge of the cover body, the top of the second guide pillar is provided with external steps, the second guide pillar is provided with two guide pillars which are arranged in parallel, and the connecting plates are sleeved on the second guide pillar, a second spring is sleeved on the second guide pillar, one end of the second spring is in contact with an external step at the top of the second guide pillar, the other end of the second spring is in contact with the top surface of the first connecting plate, the second connecting plate is vertically and fixedly connected to the edge of the first connecting plate, the second connecting plate is parallel to the wall of the cover body and is close to the wall of the cover body, a touch plate is horizontally and fixedly arranged at the side wall of the second connecting plate and is in contact with the top surface of the push block, a third connecting plate is horizontally and fixedly connected to the bottom of the second connecting plate, the wall of the cover body is provided with a guide groove, the guide groove is horizontally arranged and is positioned below the third connecting plate, a limiting plate is horizontally arranged at the end part of the scraper, the limiting plate extends into the guide groove and is in sliding fit with the guide groove, a clamping groove is fixedly arranged at the bottom of the third connecting plate, the clamping groove is obliquely arranged and is positioned in the clamping groove, the clamping groove comprises a first clamping plate, a first clamping plate and a second clamping plate which are fixedly arranged at the bottom of the third connecting plate, the first clamping plate and the second clamping plate are obliquely arranged, the first clamping plate and the second clamping plate are parallel, and the limiting plate is in contact with the inner walls of the first clamping plate and the second clamping plate.
4. The system as claimed in claim 3, wherein the first support plate is provided with a cleaning assembly, the cleaning assembly comprises an air exhaust casing, an air inlet pipe, an air exhaust pipe, a dial wheel, a gear, a connecting rod and a rack, the air exhaust casing is fixedly arranged on one side of the first support plate, the dial wheel is rotatably arranged in the air exhaust casing, the air inlet pipe is communicated with the top of the air exhaust casing, the air exhaust pipe is communicated with the bottom of the air exhaust casing, an air exhaust port of the air exhaust pipe faces the center of the base, a central shaft of the dial wheel penetrates through the wall of the air exhaust casing, the gear is coaxially and fixedly sleeved on the central shaft end of the dial wheel, the connecting rod is horizontally arranged, one end of the connecting rod is fixedly connected with the wall of the air exhaust casing, the other end of the connecting rod is fixedly connected with the rack, the rack is vertically arranged, and the rack is meshed with the gear.
5. The system for sampling and extracting samples for detecting pesticide residues as claimed in claim 4, wherein the air inlet port of the air inlet pipe is provided with a filter plate in a matching manner.
6. The system for sampling and extracting samples for detecting pesticide residues as claimed in claim 4, wherein the exhaust port of the exhaust duct is communicated with an exhaust head, the exhaust head is provided with a plurality of exhaust holes, and the air blowing directions of the exhaust holes are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211206802.9A CN115597904A (en) | 2022-09-30 | 2022-09-30 | Sample extraction system and sampling method for pesticide residue detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211206802.9A CN115597904A (en) | 2022-09-30 | 2022-09-30 | Sample extraction system and sampling method for pesticide residue detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115597904A true CN115597904A (en) | 2023-01-13 |
Family
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| CN202211206802.9A Pending CN115597904A (en) | 2022-09-30 | 2022-09-30 | Sample extraction system and sampling method for pesticide residue detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110335A (en) * | 2023-10-23 | 2023-11-24 | 辽宁省环保集团辐洁生态环境有限公司 | Industrial CT detection equipment capable of preventing radiation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110335A (en) * | 2023-10-23 | 2023-11-24 | 辽宁省环保集团辐洁生态环境有限公司 | Industrial CT detection equipment capable of preventing radiation |
| CN117110335B (en) * | 2023-10-23 | 2024-01-09 | 辽宁省环保集团辐洁生态环境有限公司 | Industrial CT detection equipment capable of preventing radiation |
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