CN111389045A

CN111389045A - Detection system for pesticide residue in agricultural products

Info

Publication number: CN111389045A
Application number: CN202010221393.4A
Authority: CN
Inventors: 尚涛; 鞠国栋; 李龙; 张力伟; 周海燕; 孙海伟; 韩晓阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-07-10

Abstract

The invention discloses a detection system for pesticide residue in agricultural products, and particularly relates to the technical field of pesticide detection. According to the invention, through the reverse rotation of the stirring plate, the second net barrel and the sample, the mixing efficiency of the residual pesticide and the reagent on the sample is improved, the subsequent detection efficiency is effectively improved, and through the design of a plurality of mixing mechanisms and a plurality of feeding pipes on the reagent barrel, the residual pesticide and the reagent on a plurality of agricultural products can be simultaneously mixed, so that the efficiency is further improved, different agricultural products can be separated and mixed with the reagent, and the detection precision is prevented from being influenced by the mutual interference of different agricultural products placed in the same container.

Description

Detection system for pesticide residue in agricultural products

Technical Field

The embodiment of the invention relates to the technical field of pesticide detection, in particular to a system for detecting pesticide residues in agricultural products.

Background

Agricultural products are produced in agriculture, such as sorghum, rice, peanuts, corns, wheat, local specialty products in various regions and the like, and primary agricultural products specified by the state refer to plants, animals and products thereof obtained in agricultural activities, but do not include various processed products. The development of agricultural industrialization leads the production of agricultural products to depend on exogenous substances such as pesticides, antibiotics, hormones and the like more and more, the dosage of the pesticides in agricultural products in China is high, the unreasonable use of the substances can lead the pesticide residues in the agricultural products to exceed the standard, the edible safety of consumers is influenced, the consumers can cause diseases, abnormal development and even poisoning death directly in serious cases, the trade of the agricultural products can be influenced even if the pesticide residues exceed the standard, the pesticide residue problem in various agricultural and sideline products is highly emphasized in all countries, the more and more strict limit standards are regulated for the pesticide residues in various agricultural and sideline products, and the export of the agricultural products in China faces serious challenges.

The pesticide residue detector is developed by adopting an enzyme inhibition principle and a photoelectric colorimetry principle according to national standard GB/T5009.199-2003, under a certain condition, organophosphorus and carbamate pesticides have an inhibition effect on the normal function of cholinesterase, the inhibition rate is positively correlated with the concentration of the pesticides, under a normal condition, an enzyme catalyzes the hydrolysis of nerve conduction metabolites (acetylcholine), the hydrolysis products react with a color developing agent to generate yellow substances, a spectrophotometer is used for measuring the change value of absorbance at 412nm along with time, the inhibition rate is calculated, whether the sample contains organophosphorus or carbamate pesticide residues can be judged through the inhibition rate, the on-site rapid detection of the organophosphorus and carbamate pesticide residues can be realized, an agricultural product sample and a reagent are mixed during detection, and agricultural products of different batches are actually required to be detected during detection, a detection system which is rapid and efficient and prevents interference among samples is needed, so that the detection system for the pesticide residue in agricultural products is provided.

Disclosure of Invention

Therefore, the system for detecting pesticide residues in agricultural products provided by the embodiment of the invention improves the mixing efficiency of the pesticide residues and the reagent on the sample and effectively improves the subsequent detection efficiency by rotating the stirring plate, the second net barrel and the sample in opposite directions, and can simultaneously mix the pesticide residues on a plurality of agricultural products with the reagent by designing a plurality of mixing mechanisms and a plurality of feeding pipes on the reagent barrel, so that the efficiency is further improved, and different agricultural products can be separated and mixed with the reagent, so that the detection precision is prevented from being influenced by mutual interference of different agricultural products in the same container.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a detection system for pesticide residue in agricultural products comprises a bottom plate and a detection mechanism, wherein the detection mechanism is arranged on one side of the bottom plate, a transverse plate is fixedly arranged at the top end of the bottom plate through three first vertical rods, three mixing mechanisms and an adding mechanism are fixedly arranged at the top end of the transverse plate, and the adding mechanism is arranged among the three mixing mechanisms;

the mixing mechanism comprises a mixing tank, a cylinder is arranged at the top end inside the mixing tank and movably connected with the mixing tank through a bearing, a first net drum is fixedly arranged on the inner wall of the cylinder and extends out of the bottom end of the cylinder, a second net drum is arranged inside the first net drum, a first gear is fixedly arranged at the outer end of the cylinder, rotating rods are arranged on two sides of the cylinder and are arranged inside the mixing tank, two ends of each rotating rod are fixedly connected with the top end and the bottom end inside the mixing tank respectively, a second gear is fixedly arranged at the outer ends of the two rotating rods and is meshed with two sides of the first gear respectively, a plurality of stirring plates are fixedly arranged at the outer ends of the rotating rods and are arranged at the bottom of the second gear, a rotating shaft is arranged inside the bottom plate, one end of the rotating shaft is fixedly connected with the bottom end of the first net drum, and the other end of the rotating shaft extends out of the, the fixed belt pulley that is equipped with in pivot outer end, the belt pulley is established in the blending tank bottom, the fixed inlet pipe that is equipped with in blending tank top, fixed discharging pipe and the outlet pipe of being equipped with in blending tank bottom, discharging pipe and outlet pipe are established respectively in the belt pulley both sides.

Further, the blending tank bottom is through three second pole setting and diaphragm top fixed connection, the second pole setting is established in the discharging pipe and the outlet pipe outside.

Further, the motor is fixedly arranged at the other end of the rotating shaft of one of the mixing mechanisms, the motor is fixedly arranged at the top end of the transverse plate, the motor is arranged between the discharging pipe and the water outlet pipe, the outer end of the belt pulley is provided with a belt, and the belt pulley is connected with the belt in an interconnecting mode.

Further, the discharging pipe and the outer end of the water outlet pipe are all fixedly provided with a switch valve, a rotary sealing ring is embedded at the bottom end inside the mixing tank, the rotary sealing ring is contacted with the outer end of the rotating shaft, and two handles are fixedly arranged at the top end of the second net cylinder.

Further, an upper cover is inlaid at the top end of the mixing tank and arranged at the top of the cylinder, a handle is fixedly arranged at the top end of the upper cover, and the upper cover is arranged on one side of the feeding pipe.

Further, it includes a reagent section of thick bamboo to add the mechanism, a reagent section of thick bamboo inside is equipped with the clamp plate, the fixed rubber ring that is equipped with in clamp plate outer end, rubber ring outer end contacts with a reagent section of thick bamboo inner wall, the fixed piston rod that is equipped with in clamp plate top, the piston rod is established inside a reagent section of thick bamboo and is extended a reagent section of thick bamboo top, reagent section of thick bamboo bottom is run through and is equipped with three filling tube, and is three the filling tube outer end all overlaps and is equipped with the tube.

Further, be equipped with the stand between reagent barrel head end and the diaphragm top, the stand both ends respectively with reagent barrel and diaphragm fixed connection, the stand is established between three filling tube and three blending tank.

Further, detection mechanism includes backup pad and pesticide residue detector, the backup pad is fixed to be established in bottom plate one side, the pesticide residue detector is established on the backup pad top.

The embodiment of the invention has the following advantages:

the invention puts the agricultural product sample into the second net cylinder, starts the motor to drive the second net cylinder and the sample inside the second net cylinder to rotate, simultaneously, the reagent is added through an adding mechanism, so that the residual pesticide on the sample is mixed with the reagent, meanwhile, the stirring plate rotates in the opposite direction of the second mesh cylinder and the sample in the mixing tank, compared with the prior art, the mixing efficiency is improved, the subsequent detection efficiency is effectively improved, and by designing a plurality of mixing mechanisms and a plurality of feed pipes on the reagent cylinder, thereby simultaneously mixing the residual pesticide on a plurality of agricultural products with the reagent, further improving the efficiency, and also can separate different agricultural products and mix with reagent, prevent that different agricultural products from putting mutual interference and influencing the detection precision in same container, mix the back, realize detecting the remaining pesticide volume on the agricultural product through pesticide residue detector.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of a front view structure provided by the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural diagram of a mixing mechanism provided in the present invention;

FIG. 4 is a schematic bottom view of three mixing mechanisms provided in the present invention;

FIG. 5 is a schematic perspective view of three mixing mechanisms provided by the present invention;

FIG. 6 is a schematic view of a front view of an adding mechanism according to the present invention;

FIG. 7 is a schematic bottom view of the adding mechanism according to the present invention;

in the figure: the pesticide residue detector comprises a base plate 1, a first vertical rod 2, a transverse plate 3, a mixing mechanism 4, an adding mechanism 5, a detection mechanism 6, a mixing tank 7, a cylinder 8, a first net cylinder 9, a second net cylinder 10, a first gear 11, a rotating rod 12, a second gear 13, a stirring plate 14, a rotating shaft 15, a motor 16, a belt pulley 17, a feeding pipe 18, a discharging pipe 19, a water outlet pipe 20, a second vertical rod 21, a belt 22, an upper cover 23, a reagent cylinder 24, a pressing plate 25, a piston rod 26, a rubber ring 27, a feeding pipe 28, a pipe cover 29, a stand column 30, a supporting plate 31 and a pesticide residue detector 32.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-7 of the specification, the system for detecting pesticide residue in agricultural products of the embodiment comprises a bottom plate 1 and a detection mechanism 6, wherein the detection mechanism 6 is arranged on one side of the bottom plate 1, a transverse plate 3 is fixedly arranged at the top end of the bottom plate 1 through three first vertical rods 2, three mixing mechanisms 4 and an adding mechanism 5 are fixedly arranged at the top end of the transverse plate 3, and the adding mechanism 5 is arranged among the three mixing mechanisms 4;

the mixing mechanism 4 comprises a mixing tank 7, a cylinder 8 is arranged at the top end inside the mixing tank 7, the cylinder 8 is movably connected with the mixing tank 7 through a bearing, a first net barrel 9 is fixedly arranged on the inner wall of the cylinder 8, the first net barrel 9 extends out of the bottom end of the cylinder 8, a second net barrel 10 is arranged inside the first net barrel 9, a first gear 11 is fixedly arranged at the outer end of the cylinder 8, rotating rods 12 are respectively arranged on two sides of the cylinder 8, the rotating rods 12 are arranged inside the mixing tank 7, two ends of each rotating rod are respectively fixedly connected with the top end and the bottom end inside the mixing tank 7, second gears 13 are respectively fixedly arranged at the outer ends of the two rotating rods 12, the two second gears 13 are respectively meshed with two sides of the first gear 11, a plurality of stirring plates 14 are fixedly arranged at the outer end of each rotating rod 12, each stirring plate 14 is arranged at the bottom of the second gear 13, a rotating shaft 15 is arranged, the utility model discloses a mixing tank, including 15 pivot one end and a first net section of thick bamboo 9, the other end extends blending tank 7 bottom, the fixed belt pulley 17 that is equipped with in 15 outer ends of pivot, belt pulley 17 establishes in the blending tank 7 bottom, the fixed inlet pipe 18 that is equipped with in 7 tops of blending tank, 7 bottom mounting of blending tank is equipped with discharging pipe 19 and outlet pipe 20, discharging pipe 19 and outlet pipe 20 are established respectively in belt pulley 17 both sides.

Further, the bottom end of the mixing tank 7 is fixedly connected with the top end of the transverse plate 3 through three second vertical rods 21, and the second vertical rods 21 are arranged on the outer sides of the discharge pipe 19 and the water outlet pipe 20, so that the mixing tank 7 is fixed.

Further, the motor 16 is fixedly arranged at the other end of the rotating shaft 15 of one of the mixing mechanisms 4, the motor 16 is fixedly arranged at the top end of the transverse plate 3, the motor 16 is arranged between the discharge pipe 19 and the water outlet pipe 20, three the outer end of the belt pulley 17 is provided with a belt 22, three the belt pulleys 17 are connected with each other through the belt 22, and the second net cylinders 10 in the three mixing mechanisms 4 can rotate simultaneously.

Further, discharging

pipe

19 and 20 outer ends of outlet pipe are all fixed and are equipped with the ooff valve, the inside bottom of blending tank 7 is inlayed and is had rotary seal, rotary seal contacts with 15 outer ends of pivot, realizes sealed between countershaft 15 and the blending tank 7, prevents to mix the liquid and leaks, the fixed two handles that are equipped with in second net section of thick bamboo 10 top are convenient for take out second net section of thick bamboo 10, and then are convenient for take out the sample that wherein has detected.

Further, an upper cover 23 is inlaid at the top end of the mixing tank 7, the upper cover 23 is arranged at the top of the cylinder 8, a handle is fixedly arranged at the top end of the upper cover 23, the upper cover 23 is arranged on one side of the feeding pipe 18, and the agricultural product sample can be placed into the second net cylinder 10 by opening the upper cover 23.

Further, add mechanism 5 and include a reagent section of thick bamboo 24, a reagent section of thick bamboo 24 is inside to be equipped with clamp plate 25, the fixed rubber ring 27 that is equipped with in clamp plate 25 outer end, rubber ring 27 outer end contacts with a reagent section of thick bamboo 24 inner wall, the fixed piston rod 26 that is equipped with in clamp plate 25 top, piston rod 26 is established inside a reagent section of thick bamboo 24 and is extended a reagent section of thick bamboo 24 top, 24 bottom of a reagent section of thick bamboo is run through and is equipped with three filling tube 28, and is three 28 outer ends of filling tube all overlap and are equipped with tube cap 29, are convenient for add reagent in three blending tank 7.

Further, be equipped with stand 30 between reagent section of thick bamboo 24 bottom and the diaphragm 3 top, stand 30 both ends respectively with reagent section of thick bamboo 24 and diaphragm 3 fixed connection, stand 30 establishes between three filling tube 28 and three blending tank 7, realizes supporting reagent section of thick bamboo 24.

Further, the detection mechanism 6 includes a support plate 31 and a pesticide residue detector 32, the support plate 31 is fixedly disposed on one side of the bottom plate 1, the pesticide residue detector 32 is disposed on the top end of the support plate 31, the detection principle of the pesticide residue detector 32 is the prior art, and further description is omitted here.

The implementation scenario is specifically as follows: in practical use, the piston rod 26 in the pressing plate 25 is pulled out, then the reagent is added into the reagent barrel 24, then the pressing plate 25 is placed into the reagent barrel 24, the upper cover 23 is opened, then the agricultural product sample is placed into the second net barrel 10, then the upper cover 23 is covered, the motor 16 is started, the motor 16 works to drive the rotating shaft 15 to rotate, so as to drive the first net barrel 9 and the cylinder 8 to rotate, further drive the second net barrel 10 and the sample inside the second net barrel to rotate, simultaneously the cylinder 8 rotates to drive the first gear 11 to rotate, so as to drive the second gear 13 and the rotating rod 12 to rotate, the rotating rod 12 rotates to drive the stirring plate 14 on the rotating rod and the second net barrel 10 to rotate in opposite directions, meanwhile, a person opens the pipe cover 29 on the feeding pipe 28, presses the piston rod 26 to add the reagent in the reagent barrel 24 into the feeding pipe 18 through the feeding pipe 28, and then the reagent enters the mixing tank 7, so that the residual pesticide on the sample is mixed with the reagent, and the mixing plate 14 rotates in the mixing tank 7 in the opposite direction with the second net barrel 10 and the sample, thereby improving the mixing efficiency and effectively improving the subsequent detection efficiency, and by designing a plurality of mixing mechanisms 4, the second net barrels 10 of the plurality of mixing mechanisms 4 rotate together through the transmission of the belt pulley 17 and the belt 22, and the plurality of feeding pipes 28 on the reagent barrel 24, thereby simultaneously mixing the residual pesticide on a plurality of agricultural products with the reagent, further improving the efficiency, and also separating different agricultural products and mixing the reagent, preventing the different agricultural products from being placed in the same container to interfere with each other and influence the detection precision, after the mixing is completed, the personnel opens the switch valve on the discharge pipe 19 to make the mixed liquid of the mixing tank 7 flow into the beaker placed at the bottom of the discharge pipe 19 in advance through the discharge pipe 19, then the personnel put the mixed liquid into the pesticide residue detector 32 of the detection mechanism 6 again and detect, realize detecting the residual pesticide volume on the agricultural product, this embodiment has specifically solved the problem that needs the detection system of high efficiency and prevent interference between the sample among the prior art.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a detecting system of pesticide residue in agricultural product, includes bottom plate (1) and detection mechanism (6), establish in bottom plate (1) one side its characterized in that detection mechanism (6): a transverse plate (3) is fixedly arranged at the top end of the bottom plate (1) through three first vertical rods (2), three mixing mechanisms (4) and an adding mechanism (5) are fixedly arranged at the top end of the transverse plate (3), and the adding mechanism (5) is arranged among the three mixing mechanisms (4);

the mixing mechanism (4) comprises a mixing tank (7), a cylinder (8) is arranged at the top end inside the mixing tank (7), the cylinder (8) is movably connected with the mixing tank (7) through a bearing, a first net barrel (9) is fixedly arranged on the inner wall of the cylinder (8), the first net barrel (9) extends out of the bottom end of the cylinder (8), a second net barrel (10) is arranged inside the first net barrel (9), a first gear (11) is fixedly arranged at the outer end of the cylinder (8), rotating rods (12) are arranged on two sides of the cylinder (8), the rotating rods (12) are arranged inside the mixing tank (7), two ends of the rotating rods (12) are fixedly connected with the top end and the bottom end inside the mixing tank (7) respectively, second gears (13) are fixedly arranged at the outer ends of the two rotating rods (12), and the two second gears (13) are meshed with two sides of the first gear (11) respectively, the fixed a plurality of stirring boards (14) that are equipped with in bull stick (12) outer end, establish in second gear (13) bottom stirring board (14), bottom plate (1) inside is equipped with pivot (15), pivot (15) one end extends blending tank (7) bottom with first net section of thick bamboo (9) bottom fixed connection and the other end, pivot (15) outer end is fixed and is equipped with belt pulley (17), establish in blending tank (7) bottom belt pulley (17), blending tank (7) top is fixed and is equipped with inlet pipe (18), blending tank (7) bottom mounting is equipped with discharging pipe (19) and outlet pipe (20), belt pulley (17) both sides are established respectively in discharging pipe (19) and outlet pipe (20).

2. The system for detecting the pesticide residue in the agricultural product according to claim 1, wherein: the bottom end of the mixing tank (7) is fixedly connected with the top end of the transverse plate (3) through three second vertical rods (21), and the second vertical rods (21) are arranged on the outer sides of the discharge pipe (19) and the water outlet pipe (20).

3. The system for detecting the pesticide residue in the agricultural product according to claim 1, wherein: the other end of a rotating shaft (15) of one of the mixing mechanisms (4) is fixedly provided with a motor (16), the motor (16) is fixedly arranged at the top end of the transverse plate (3), the motor (16) is arranged between a discharging pipe (19) and a water outlet pipe (20) in a three-way mode, the outer end of the belt pulley (17) is provided with a belt (22) in a three-way mode, and the belt pulley (17) is connected with one another through the belt (22).

4. The system for detecting the pesticide residue in the agricultural product according to claim 1, wherein: discharging pipe (19) and outlet pipe (20) outer end all are fixed and are equipped with the ooff valve, the inside bottom of blending tank (7) is inlayed and is had rotary seal, rotary seal contacts with pivot (15) outer end, two handles are fixed to be equipped with on second net section of thick bamboo (10) top.

5. The system for detecting the pesticide residue in the agricultural product according to claim 1, wherein: mixing tank (7) top is inlayed and is had upper cover (23), establish at drum (8) top upper cover (23), upper cover (23) top is fixed and is equipped with the handle, establish in inlet pipe (18) one side upper cover (23).

6. The system for detecting the pesticide residue in the agricultural product according to claim 1, wherein: add mechanism (5) including a reagent section of thick bamboo (24), reagent section of thick bamboo (24) inside is equipped with clamp plate (25), fixed rubber ring (27) that is equipped with in clamp plate (25) outer end, rubber ring (27) outer end contacts with reagent section of thick bamboo (24) inner wall, fixed piston rod (26) that is equipped with in clamp plate (25) top, establish in reagent section of thick bamboo (24) inside and extend reagent section of thick bamboo (24) top piston rod (26), run through and be equipped with three filling tube (28) in reagent section of thick bamboo (24) bottom, it is three filling tube (28) outer end all overlaps and is equipped with tube cap (29).

7. The system for detecting the pesticide residue in the agricultural product according to claim 6, wherein: be equipped with between reagent section of thick bamboo (24) bottom and diaphragm (3) top stand (30), stand (30) both ends respectively with reagent section of thick bamboo (24) and diaphragm (3) fixed connection, establish between three filling tube (28) and three blending tank (7) stand (30).

8. The system for detecting the pesticide residue in the agricultural product according to claim 1, wherein: detection mechanism (6) are including backup pad (31) and pesticide residue detector (32), backup pad (31) are fixed to be established in bottom plate (1) one side, pesticide residue detector (32) are established on backup pad (31) top.