CN215910204U

CN215910204U - Pretreatment device for detecting pesticide residue on surface of crop blade

Info

Publication number: CN215910204U
Application number: CN202122168526.9U
Authority: CN
Inventors: 郭瑛; 秦建梅; 白帆
Original assignee: Jinzhong Comprehensive Inspection And Testing Center
Current assignee: Jinzhong Comprehensive Inspection And Testing Center
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-25
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to a pesticide detection device, in particular to a pretreatment device for detecting pesticide residues on the surfaces of crop leaves, which comprises a soaking box and a sealing base which is detachably arranged at the bottom of the soaking box, wherein a secondary shaft and a tertiary shaft are respectively rotatably arranged in the soaking box, a plurality of groups of upper cutter wheels and lower cutter wheels are respectively fixed on the secondary shaft and the tertiary shaft, the upper cutter wheels and the lower cutter wheels are arranged in a staggered manner, the secondary shaft and the tertiary shaft are connected through a gear set, a transverse cutting assembly is also arranged in the soaking box, and the secondary shaft and the transverse cutting assembly are both connected with a power assembly; the power assembly drives the second-stage shaft, the third-stage shaft and the transverse cutting assembly to act simultaneously, the second-stage shaft and the third-stage shaft drive the upper cutter wheel and the lower cutter wheel to rotate respectively, crop blades are automatically sent into the soaking box and are longitudinally cut to be filamentous, and the filamentous blades are transversely cut by the transverse cutting assembly, so that the blades finally fall into the soaking box in a granular shape and are fully contacted with an extracting solution in the soaking box.

Description

Pretreatment device for detecting pesticide residue on surface of crop blade

Technical Field

The utility model relates to a pesticide detection device, in particular to a pretreatment device for detecting pesticide residues on the surfaces of crop leaves.

Background

The pesticide residue on the surface of crops is often required to be detected before harvesting, and most pesticide residue tacheometers are adopted for detection at present.

When the pesticide residue tacheometer is used for detection, the following procedures are generally carried out:

starting up the machine and connecting the power supply of the pesticide residue tacheometer, preheating, and converting the output mode of the computer into the output mode of the printer;

then taking 1 cuvette, adding 100ul enzyme solution into the cuvette by using a 100ul micropipette, adding 2.5ml buffer solution into a 10ml pipette, and shaking up; adding 10ul of color developing agent into 100ul of micropipette with a replaceable pipette tip, adding 2oul substrate into 20ul of micropipette, sealing with preservative film or clean glass sheet, and shaking up; after pressing the "100%" key, the cuvette was placed in the first channel at the top of the instrument, the instrument cover was closed, the "control" key was pressed, and the change in absorbance was displayed after 1 minute.

Cutting 1g of the sample, and soaking for 10 minutes by using 5ml of the extracting solution; adding 100 microliters of enzyme and 100 microliters of color developing agent into 2.5 milliliters of soak solution (culturing for 15 minutes at the temperature of 30 ℃), shaking the 100-microliter substrate uniformly, pouring the substrate into a cuvette, and putting the cuvette into an instrument;

finally, the cuvette is placed in the instrument, and the test is carried out by pressing a 'sample' key.

Wherein, the sample of the crop leaves is basically cut by hand tearing or scissors, and firstly, the time consumption is long, but the fine crushing degree is very limited; because the density of the leaves is low and the leaves float on the upper layer of the extracting solution, when the leaves are not cut thoroughly, the leaves can not be ensured to be fully contacted with the extracting solution, namely the soaking is not thorough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pretreatment device for detecting pesticide residue on the surface of a crop leaf, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a pretreatment device for detecting pesticide residues on the surfaces of crop blades comprises a soaking box and a sealing base which is detachably arranged at the bottom of the soaking box, wherein a feed inlet for feeding the crop blades into the soaking box is formed in one side of the upper part of the soaking box;

a second-stage shaft and a third-stage shaft are rotatably mounted in the soaking box respectively, the second-stage shaft and the third-stage shaft are arranged on the upper side and the lower side of the feed port respectively, a plurality of groups of upper cutter wheels and lower cutter wheels are fixed on the second-stage shaft and the third-stage shaft respectively, the upper cutter wheels and the lower cutter wheels are arranged in a staggered manner, the second-stage shaft and the third-stage shaft are connected through a gear set, and the second-stage shaft is also connected with a power assembly;

the soaking box is internally provided with a transverse cutting assembly, the transverse cutting assembly is arranged on one side of the upper cutter wheel and one side of the lower cutter wheel, which are deviated from the feed inlet, and the transverse cutting assembly is connected with the power assembly.

As a further scheme of the utility model: the power assembly comprises a motor arranged outside the soaking tank and a worm which is rotatably arranged in the soaking tank and connected with the output end of the motor, the worm is matched with a worm wheel, the worm wheel is arranged on a primary shaft, and the primary shaft is rotatably arranged in the soaking tank;

the primary shaft is connected with the secondary shaft through a belt, and the gear set comprises a first gear fixed on the secondary shaft and a second gear fixed on the tertiary shaft and meshed with the first gear.

As a still further scheme of the utility model: the transverse cutting assembly comprises a sleeve plate fixed in the soaking box, a cutter sleeved below the sleeve plate in a sliding manner, and a cutter sleeve fixed in the soaking box and positioned right below the cutter;

wherein, a rotating wheel is fixed on the worm and is connected with the cutter through a connecting rod.

As a still further scheme of the utility model: the device comprises a soaking box, a liquid injection pipe, a liquid discharge pipe and a liquid discharging pipe, wherein the glass panel is integrally formed on one side of the soaking box, the liquid injection pipe is fixedly communicated with the upper part of the soaking box and used for injecting an extracting solution into the soaking box, and the liquid discharge pipe is fixedly communicated with the lower part of the soaking box and used for taking out a base liquid which is completely soaked in the soaking box.

As a still further scheme of the utility model: the sealing base is detachably mounted at the bottom of the soaking box with the open bottom through elastic structures, the two groups of elastic structures are respectively arranged on two sides of the sealing base, and clamping pieces matched with the elastic structures are fixed on outer walls of two sides of the soaking box.

As a still further scheme of the utility model: the sealing base is provided with a slot matched with the bottom of the soaking box, and the bottom of the soaking box is fixed with a circle of sealing gasket.

As a still further scheme of the utility model: the elastic structure comprises a rotating shaft fixed on the sealing base, a sleeve sleeved on the rotating shaft, a swing arm fixed on the sleeve and a bulge fixed at the end part of the swing arm and used for being matched with the clamping piece to elastically fix the sealing base at the bottom of the soaking box;

the sleeve pipe is sleeved with a torsional spring, one end of the torsional spring is in lap joint with a limiting column fixed on the swing arm, and the other end of the torsional spring is in plug-in connection with a sleeve shaft fixed on the sealing base.

Compared with the prior art, the utility model has the beneficial effects that: the power assembly drives the second-stage shaft, the third-stage shaft and the transverse cutting assembly to act simultaneously, the second-stage shaft and the third-stage shaft drive the upper cutter wheel and the lower cutter wheel to rotate respectively, crop blades are automatically sent into the soaking box and are longitudinally cut to form strips, and the strips are transversely cut by the transverse cutting assembly, so that the blades finally fall into the soaking box in a granular shape and are fully contacted with an extracting solution in the soaking box.

Drawings

Fig. 1 is a schematic structural view of a pretreatment device for detecting pesticide residues on the surfaces of crop leaves.

Fig. 2 is a section 1/4 of the pretreatment device for detecting pesticide residue on the surface of a crop leaf.

Fig. 3 is a schematic structural diagram of a transverse cutting assembly, a cutter wheel and a shaft in the pretreatment device for detecting pesticide residue on the surface of the crop leaf.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a side view structural view of a traverse module in the pretreatment device for detecting pesticide residue on the surface of a crop leaf.

Fig. 6 is a front view structural view of a cutter wheel, a connecting rod and a rotating wheel in the pretreatment device for detecting pesticide residue on the surface of the crop leaf.

Fig. 7 is a half-sectional view of the pretreatment device for detecting pesticide residue on the surface of a crop leaf.

Fig. 8 is a partial enlarged view at C in fig. 7.

Fig. 9 is a rear view of the pretreatment device for detecting pesticide residue on the surface of a crop leaf.

Fig. 10 is a partial enlarged view of fig. 9 at B.

Fig. 11 is a schematic view of an elastic structure in the pretreatment device for detecting pesticide residue on the surface of a crop leaf.

In the figure: 1-soaking box; 2-sealing the base; 3-a feed inlet; 4-a motor; 5-a worm; 6-a worm gear; 7-primary axis; 8-a belt; 9-a secondary axis; 10-a first gear; 11-tertiary axis; 12-a second gear; 13-lower cutter wheel; 14-mounting a cutter wheel; 15-cutting knife; 16-a connecting rod; 17-a runner; 18-a knife sleeve; 19-sheathing; 20-a cannula; 21-a rotating shaft; 22-torsion spring; 23-a swing arm; 24-a limit post; 25-a sleeve seat; 26-convex; 27-a clip; 28-slot; 29-a gasket; 30-a glass panel; 31-a handle; 32-liquid injection pipe; 33-liquid discharge tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 11, in the embodiment of the utility model, a pretreatment device for detecting pesticide residues on surfaces of crop blades comprises a soaking box 1 and a sealing base 2 detachably arranged at the bottom of the soaking box 1, wherein a feed inlet 3 for feeding the crop blades into the soaking box 1 is formed in one side of the upper part of the soaking box 1;

a secondary shaft 9 and a tertiary shaft 11 are respectively rotatably mounted in the soaking box 1, the secondary shaft 9 and the tertiary shaft 11 are respectively arranged at the upper side and the lower side of the feed port 3, a plurality of groups of upper cutter wheels 14 and lower cutter wheels 13 are respectively fixed on the secondary shaft 9 and the tertiary shaft 11, the upper cutter wheels 14 and the lower cutter wheels 13 are arranged in a staggered manner, the secondary shaft 9 and the tertiary shaft 11 are connected through a gear set, and the secondary shaft 9 is further connected with a power assembly;

and a transverse cutting assembly is further arranged in the soaking box 1, is arranged on one side of the upper cutter wheel 14 and the lower cutter wheel 13, which is deviated from the feed port 3, and is connected with the power assembly.

In the embodiment of the utility model, the power assembly drives the secondary shaft 9, the tertiary shaft 11 and the transverse cutting assembly to act simultaneously, the secondary shaft 9 and the tertiary shaft 11 drive the upper cutter wheel 14 and the lower cutter wheel 13 to rotate respectively, the crop leaves are automatically fed into the soaking box 1 and are longitudinally cut to be in a strip shape, and the strip-shaped leaves are transversely cut by the transverse cutting assembly, so that the leaves finally fall into the soaking box 1 in a granular shape and are fully contacted with the extracting solution in the soaking box 1.

As an embodiment of the utility model, the power assembly comprises a motor 4 installed outside the steeping box 1 and a worm 5 rotatably arranged in the steeping box 1 and connected with the output end of the motor 4, the worm 5 is matched with a worm wheel 6, the worm wheel 6 is installed on a primary shaft 7, and the primary shaft 7 is rotatably arranged in the steeping box 1;

the primary shaft 7 is connected with a secondary shaft 9 through a belt 8, and the gear set comprises a first gear 10 fixed on the secondary shaft 9 and a second gear 12 fixed on the tertiary shaft 11 and meshed with the first gear 10.

In the embodiment of the utility model, the motor 4 is used for driving the worm 5 to rotate, the rotating worm 5 drives the worm wheel 6 to rotate, the primary shaft 7 is finally driven to rotate, the primary shaft 7 drives the secondary shaft 9 to rotate through the belt 8, the secondary shaft 9 drives the tertiary shaft 11 to rotate reversely through the gears which are meshed with each other, so that the upper cutter wheel 14 and the lower cutter wheel 13 on the primary shaft 7 and the secondary shaft 9 rotate reversely to cut the blades which are sent into the soaking box 1 through the feed port 3 into filaments.

As an embodiment of the present invention, the transverse cutting assembly includes a sleeve plate 19 fixed in the soaking tank 1, a cutting knife 15 slidably sleeved below the sleeve plate 19, and a knife sleeve 18 fixed in the soaking tank 1 and located right below the cutting knife 15;

wherein, a rotating wheel 17 is fixed on the worm 5, and the rotating wheel 17 is connected with the cutting knife 15 through a connecting rod 16;

specifically, the upper end of the connecting rod 16 is sleeved with a pin shaft fixed at the eccentric position of the rotating wheel 17, and the lower end of the connecting rod is sleeved with a connecting shaft fixed on the cutting knife 15.

In the embodiment of the utility model, the worm 5 drives the rotating wheel 17 to rotate, the rotating wheel 17 drives the cutting knife 15 to reciprocate along the sleeve plate 19 by using the connecting rod 16, and the cutting knife is matched with the fixed knife sleeve 18 to cut the filamentous blades into granules and fall to the lower part of the soaking box 1;

it should be noted that two sides of the sleeve plate 19 are fixed with the inner wall of the soaking box 1 through an upper support rod respectively, two sides of the knife sleeve 18 are fixed with the inner wall of the soaking box 1 through a lower support rod respectively, a cross beam is fixed between the upper support rods on the two sides, a shaft sleeve is fixed in the center of the cross beam, and the shaft sleeve is rotatably sleeved with the shaft neck of the worm 5;

the sleeve plate 19 is fixed through the upper support rod, the knife sleeve 18 is fixed through the lower support rod, and the end, far away from the motor 4, of the worm 5 is supported by means of a beam and a shaft sleeve on the upper support rod, so that the worm 5 is prevented from being damaged or deformed in a suspended mode.

In one embodiment of the present invention, a glass panel 30 is integrally formed on one side of the immersion tank 1, a liquid injection pipe 32 for injecting an extraction liquid into the immersion tank 1 is fixedly penetrated through an upper portion of the immersion tank 1, and a liquid discharge pipe 33 for discharging a bottom liquid completely soaked in the immersion tank 1 is fixedly penetrated through a lower portion of the immersion tank 1;

of course, a sealing plug is removably mounted at the outer end of the tapping tube 33.

In the embodiment of the utility model, the glass panel 30 is used to facilitate the observation of the soaking condition of the granular leaves in the soaking box 1, the extracting solution can be injected into the soaking box 1 through the injection pipe 32 after the leaves are completely crushed, and the sealing plug can be removed after the soaking is finished, so that the bottom solution in the soaking box 1 can be taken out for detection.

As an embodiment of the present invention, the sealing base 2 is detachably mounted at the bottom of the steeping box 1 with an open bottom through two groups of elastic structures, the two groups of elastic structures are respectively arranged at two sides of the sealing base 2, and the outer walls at two sides of the steeping box 1 are fixed with clamping pieces 27 for matching with the elastic structures.

In the embodiment of the utility model, the sealing base 2 is detachably arranged at the bottom of the soaking box 1 through the matching of the clamping piece 27 and the elastic structure on the sealing base 2, after soaking is finished and base liquid is taken out for detection, granular blades and extracting liquid in the soaking box 1 can be discharged together by detaching the sealing base 2, and the bottom of the soaking box 1 is opened after the sealing base 2 is detached, so that the inside of the soaking box 1 is more convenient to clean.

As an embodiment of the present invention, the sealing base 2 is provided with a slot 28 adapted to the bottom of the steeping box 1, and a ring of sealing gasket 29 is fixed to the bottom of the steeping box 1.

In the embodiment of the utility model, the slot 28 is convenient for accurately installing the sealing base 2 in the soaking tank 1, the sealing property between the sealing base 2 and the bottom of the soaking tank 1 can be improved by matching the slot 28 and the sealing gasket 29, the slot 28 and the sealing gasket 29 can be ensured to be in sealing fit under the action of the elastic structure, and the sealing property is further improved.

As an embodiment of the present invention, the elastic structure includes a rotating shaft 21 fixed on the sealing base 2, a sleeve 20 sleeved on the rotating shaft 21, a swing arm 23 fixed on the sleeve 20, and a protrusion 26 fixed at an end of the swing arm 23 and used for cooperating with the clamping piece 27 to elastically fix the sealing base 2 on the bottom of the steeping box 1;

the sleeve 20 is sleeved with a torsion spring 22, one end of the torsion spring 22 is in lap joint with a limiting column 24 fixed on the swing arm 23, and the other end of the torsion spring 22 is in plug-in connection with a sleeve shaft 25 fixed on the sealing base 2.

In the embodiment of the utility model, the protrusion 26 at the upper end of the swing arm 23 can be elastically attached to the clamping piece 27 through the torsion spring 22, so that the sealing base 2 is fixed at the bottom of the soaking box 1, and the elastic sealing installation of the sealing base 2 and the soaking box 1 is realized.

In addition, in order to conveniently detach the sealing base 2, a handle 31 is further fixed on the upper portion of the swing arm 23, the swing arm 23 and the protrusion 26 can be separated from the clamping piece 27 by pulling the handle 31 against the elastic force of the torsion spring 22, the sealing base 2 can be detached from the bottom of the soaking box 1 after the protrusion 26 is separated from the clamping piece 27, and the effect of quick detachment is achieved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A pretreatment device for detecting pesticide residues on the surfaces of crop blades comprises a soaking box (1) and a sealing base (2) detachably arranged at the bottom of the soaking box (1), and is characterized in that a feed inlet (3) for feeding the crop blades into the soaking box (1) is formed in one side of the upper part of the soaking box (1);

a secondary shaft (9) and a tertiary shaft (11) are respectively rotatably mounted in the soaking box (1), the secondary shaft (9) and the tertiary shaft (11) are respectively arranged on the upper side and the lower side of the feed port (3), a plurality of groups of upper cutter wheels (14) and lower cutter wheels (13) are respectively fixed on the secondary shaft (9) and the tertiary shaft (11), the upper cutter wheels (14) and the lower cutter wheels (13) are arranged in a staggered manner, the secondary shaft (9) is connected with the tertiary shaft (11) through a gear set, and the secondary shaft (9) is further connected with a power assembly;

the soaking box (1) is also internally provided with a transverse cutting assembly, the transverse cutting assembly is arranged on one side of the upper cutter wheel (14) and the lower cutter wheel (13) departing from the feed port (3), and the transverse cutting assembly is connected with the power assembly.

2. The pretreatment device for detecting pesticide residues on the surfaces of crop leaves as claimed in claim 1, wherein the power assembly comprises a motor (4) mounted outside the soaking tank (1) and a worm (5) rotatably arranged in the soaking tank (1) and connected with the output end of the motor (4), the worm (5) is matched with a worm wheel (6), the worm wheel (6) is mounted on a primary shaft (7), and the primary shaft (7) is rotatably arranged in the soaking tank (1);

the primary shaft (7) is connected with the secondary shaft (9) through a belt (8), and the gear set comprises a first gear (10) fixed on the secondary shaft (9) and a second gear (12) fixed on the tertiary shaft (11) and meshed with the first gear (10).

3. The pretreatment device for detecting pesticide residues on the surfaces of crop leaves as claimed in claim 2, wherein the transverse cutting assembly comprises a sleeve plate (19) fixed in the soaking tank (1), a cutter (15) slidably sleeved below the sleeve plate (19), and a cutter sleeve (18) fixed in the soaking tank (1) and positioned right below the cutter (15);

wherein, a rotating wheel (17) is fixed on the worm (5), and the rotating wheel (17) is connected with the cutter (15) through a connecting rod (16).

4. The pretreatment device for detecting pesticide residues on the surfaces of crop leaves as claimed in any one of claims 1 to 3, wherein a glass panel (30) formed integrally is provided on one side of the soaking tank (1), a liquid injection pipe (32) for injecting the extract into the soaking tank (1) is fixedly penetrated through the upper part of the soaking tank (1), and a liquid discharge pipe (33) for discharging the base liquid completely soaked in the soaking tank (1) is fixedly penetrated through the lower part of the soaking tank (1).

5. The pretreatment device for detecting pesticide residues on the surfaces of crop leaves as claimed in any one of claims 1 to 3, wherein the sealing base (2) is detachably mounted at the bottom of the soaking tank (1) with an open bottom through two groups of elastic structures, the two groups of elastic structures are respectively arranged at two sides of the sealing base (2), and clamping pieces (27) matched with the elastic structures are fixed on the outer walls of the two sides of the soaking tank (1).

6. The pretreatment device for detecting pesticide residues on the surfaces of crop leaves as claimed in claim 5, wherein the sealing base (2) is provided with a slot (28) adapted to the bottom of the soaking tank (1), and a circle of sealing gasket (29) is fixed to the bottom of the soaking tank (1).

7. The pretreatment device for detecting pesticide residues on the surfaces of crop leaves as claimed in claim 5, wherein the elastic structure comprises a rotating shaft (21) fixed on the sealing base (2), a sleeve (20) sleeved on the rotating shaft (21), a swing arm (23) fixed on the sleeve (20), and a protrusion (26) fixed at the end of the swing arm (23) and used for being matched with the clamping piece (27) to elastically fix the sealing base (2) on the bottom of the soaking box (1);

the sleeve (20) is sleeved with a torsion spring (22), one end of the torsion spring (22) is in lap joint with a limiting column (24) on the swing arm (23), and the other end of the torsion spring is fixed with a sleeve shaft (25) on the sealing base (2) in a plug-in mode.