阅读说明：本技术 一种基于色谱检测法的农药快速检测装置 (Quick pesticide detection device based on chromatographic detection method ) 是由 马飞 程瑞 郑磊 徐宝才 陈从贵 韩青莉 于 2021-02-23 设计创作，主要内容包括：本发明属于食品检测技术领域,尤其是一种基于色谱检测法的农药快速检测装置,针对现有技术存在的问题,现提出以下方案,包括混合筒,所述混合筒的底面为倾斜面,且混合筒的底部开有进料口,进料口的底部固定连接有底壳,底壳的底端外壁通过螺纹连接有底盖,所述混合筒的内部设置有储液筒,且储液筒的侧面外壁和混合筒的侧面内壁顶部之间固定连接有至少两个环形均匀分布的第二连接杆。本发明减小了蔬果样品转移过程中外界产生的影响,提高了检测的精确性,能使得蔬果样品和药液快速混合,提高了检测的效率,能使得蔬果样品能和药液充分接触,能减小混合液颜色的叠加,进而能提高比色时的精确度,能防止混合液中的固体进入到影响比色。(The invention belongs to the technical field of food detection, and particularly relates to a pesticide quick detection device based on a chromatographic detection method. The invention reduces the external influence in the transfer process of the vegetable and fruit samples, improves the detection accuracy, can quickly mix the vegetable and fruit samples with the liquid medicine, improves the detection efficiency, can ensure that the vegetable and fruit samples can be fully contacted with the liquid medicine, can reduce the superposition of the colors of the mixed liquid, further can improve the accuracy in color comparison, and can prevent the solid in the mixed liquid from entering the color comparison to influence the color comparison.)

1. The quick pesticide detection device based on the chromatographic detection method comprises a mixing drum (1) and is characterized in that the bottom surface of the mixing drum (1) is an inclined plane, a feed inlet is formed in the bottom of the mixing drum (1), a bottom shell (10) is fixedly connected to the bottom of the feed inlet, a bottom cover (11) is connected to the outer wall of the bottom end of the bottom shell (10) through threads, a liquid storage drum (8) is arranged inside the mixing drum (1), at least two second connecting rods (21) which are uniformly distributed in an annular shape are fixedly connected between the outer wall of the side surface of the liquid storage drum (8) and the top of the inner wall of the side surface of the mixing drum (1), a colorimetric drum (2) is connected to the top of the outer wall of the side surface of the mixing drum (1) through threads, the colorimetric drum (2) is of an annular transparent cylindrical structure, a chromatograph (9) is arranged on the outer wall of the side surface of the colorimetric drum, a filter screen (14) is pressed between the outer wall of the bottom of the colorimetric cylinder (2) and the second connecting rod (21), a liquid inlet fine cylinder (13) is fixedly connected to the inner wall of one side of the liquid storage cylinder (8), a liquid filling opening (7) is formed in the top end of the liquid inlet fine cylinder (13), a liquid filling cover is arranged on the liquid filling opening (7), a piston block (12) is slidably connected to the inner wall of the side face of the liquid storage cylinder (8), four compression rods (6) which are uniformly distributed in an annular shape are fixedly connected to the outer wall of the top of the piston block (12), the top end of each compression rod (6) extends to the upper portion of the liquid storage cylinder (8), a compression cap (5) is fixedly connected to the top end of each compression rod (6), an intermediate cylinder (18) is fixedly connected to the bottom of the inner wall of the side face of the liquid storage cylinder (8) through a first connecting rod (20), the intermediate cylinder (18, at least four first springs (24) which are uniformly distributed in an annular shape are fixedly connected between the outer wall of the bottom of the blocking ring (33) and the inner wall of the bottom of the middle barrel (18), and the elastic force of the first springs (24) enables the blocking ring (33) to be blocked at the bottom of the liquid storage barrel (8).

2. The device for rapidly detecting the pesticide according to claim 1, characterized in that the inner side wall of the middle cylinder (18) is connected with a rotary cylinder (22) through a bearing, the inner side wall of the rotary cylinder (22) is provided with a pressing handle (4), the outer side wall of the pressing handle (4) is provided with a thread groove (24), the inner side wall of the rotary cylinder (22) is provided with a thread strip (23) matched with the thread groove (24), the top end of the pressing handle (4) is fixedly connected with the outer bottom wall of the pressing cap (5), and the top end of the outer side wall of the rotary cylinder (22) is connected with the top surface of the liquid storage cylinder (8) through a bearing.

3. The device for rapidly detecting the pesticide according to the chromatographic detection method of claim 2, wherein the bottom end of the rotating cylinder (22) is fixedly connected with a rotating rod (17) extending to the interior of the mixing cylinder (1), and the outer wall of the side surface of the rotating rod (17) is fixedly connected with uniformly distributed mixing rods (15).

4. The device for rapidly detecting the pesticide by the chromatographic detection method as claimed in claim 3, wherein the outer wall of the side surface of the mixing rod (15) is fixedly connected with uniformly distributed cutters (16).

5. The device for rapidly detecting the pesticide according to claim 1, characterized in that the top of the outer side wall of the colorimetric cylinder (2) is provided with an air release port, the inner side wall of the air release port is fixedly connected with an air release cylinder (3), the outer side wall of the air release cylinder (3) facing the interior of the colorimetric cylinder (2) is provided with a round hole, the inner wall of the other side of the air release cylinder (3) is provided with an air release hole (26), one side of the round hole is provided with a block (27) matched with the round hole, a second spring (25) is fixedly connected between the outer side wall of the block (27) and the inner side wall of the air release cylinder (3), and the block (27) is blocked in the round hole due to the elasticity of the second spring (25).

6. The device for rapidly detecting pesticide according to claim 1, wherein a cutter ring (28) is connected to the inner side wall of the bottom shell (10) through a thread, and a spiral cutter (30) is fixedly connected to the inner side wall of the cutter ring (28).

7. The device for rapidly detecting the pesticide according to the chromatographic detection method as claimed in claim 6, wherein the center of the spiral knife (30) is fixedly connected with the middle block (29), and the bottom surface of the middle block (29) is higher than the cutting edge of the spiral knife (30).

8. The device for rapidly detecting the pesticide according to the chromatographic detection method as claimed in claim 6, wherein the cutting edge of the spiral knife (30) is provided with a sawtooth groove (31).

9. The device for rapidly detecting the pesticide according to the chromatographic detection method of claim 8, wherein the outer wall of the spiral knife (30) is fixedly connected with a vertically arranged cutting steel wire (32).

Technical Field

The invention relates to the technical field of food detection, in particular to a rapid pesticide detection device based on a chromatographic detection method.

Background

In the prior art, when pesticide residues are detected, vegetables and fruits which need to be detected are generally sampled and stored and then sent into a laboratory for detection, however, when the detection is carried out by adopting the detection mode, the vegetables and fruits are easily polluted or go bad in the transfer process from a production place to the laboratory, and then the detection result is easily inaccurate, and the influence of external factors on the detection is large.

Disclosure of Invention

Based on the technical problems in the prior art, the invention provides a rapid pesticide detection device based on a chromatographic detection method.

The invention provides a pesticide rapid detection device based on a chromatographic detection method, which comprises a mixing barrel, wherein the bottom surface of the mixing barrel is an inclined plane, the bottom of the mixing barrel is provided with a feed inlet, the bottom of the feed inlet is fixedly connected with a bottom shell, the outer wall of the bottom end of the bottom shell is connected with a bottom cover through threads, the interior of the mixing barrel is provided with a liquid storage barrel, at least two second connecting rods which are uniformly distributed in an annular shape are fixedly connected between the outer wall of the side surface of the liquid storage barrel and the top of the inner wall of the side surface of the mixing barrel, the top of the outer wall of the side surface of the mixing barrel is connected with a colorimetric barrel through threads, the colorimetric barrel is of an annular transparent barrel-shaped structure, the outer wall of the side surface of the colorimetric barrel is provided with a chromatograph, the inner wall of the colorimetric barrel is attached to the outer wall of the liquid storage barrel, a filter screen is, be provided with the liquid feeding lid on the filling opening, the side inner wall sliding connection of liquid storage cylinder has the piston piece, and four annular evenly distributed's of top outer wall fixedly connected with depression bar of piston piece, and the top of depression bar extends to the top of liquid storage cylinder, and the top fixedly connected with pressure cap of depression bar, a section of thick bamboo in the middle of the side inner wall bottom of liquid storage cylinder is through first connecting rod fixedly connected with, and middle section of thick bamboo is for invering T type structure, and the side outer wall sliding connection of middle section of thick bamboo has stifled circle, and fixedly connected with four at least annular evenly distributed's of first spring between the bottom inner wall of the bottom outer wall of stifled circle and middle section of thick bamboo, and the elasticity of first spring makes stif.

Preferably, the side inner wall of the middle cylinder is connected with a rotary cylinder through a bearing, the side inner wall of the rotary cylinder is provided with a pressing handle, the side outer wall of the pressing handle is provided with a thread groove, the side inner wall of the rotary cylinder is provided with a thread strip matched with the thread groove, the top end of the pressing handle is fixedly connected to the bottom outer wall of the pressing cap, and the top end of the side outer wall of the rotary cylinder is connected to the top surface of the liquid storage cylinder through a bearing.

Preferably, the bottom end of the rotating cylinder is fixedly connected with a rotating rod extending into the mixing cylinder, and the outer wall of the side surface of the rotating rod is fixedly connected with uniformly distributed mixing rods.

Preferably, the outer wall of the side surface of the mixing rod is fixedly connected with uniformly distributed cutters.

Preferably, open at the side outer wall top of comparing the look section of thick bamboo has the mouth of disappointing, and the side inner wall fixedly connected with of mouthful leaks the gas cylinder, and the side outer wall of the inside of comparing the look section of thick bamboo of the orientation of leaking the gas cylinder is opened there is the round hole, and the opposite side inner wall of leaking the gas cylinder is opened has the hole of disappointing, and one side of round hole is provided with the sprue with round hole looks adaptation, fixedly connected with second spring between the side outer wall of sprue and the side inner wall of leaking the gas cylinder, and the elasticity of second spring makes the sprue stifled.

Preferably, the inner wall of the side surface of the bottom shell is connected with a cutter ring through threads, and the inner wall of the side surface of the cutter ring is fixedly connected with a spiral cutter.

Preferably, the center position of the spiral knife is fixedly connected with a middle block, and the bottom surface of the middle block is higher than the cutting edge of the spiral knife.

Preferably, the cutting edge of the spiral knife is provided with a sawtooth groove.

Preferably, the outer wall of the spiral knife is fixedly connected with a vertically arranged cutting steel wire.

The beneficial effects of the invention are as follows:

1. this be used for food detection to use pesticide short-term test device, through setting up color comparison section of thick bamboo, liquid storage cylinder and mixing drum, the liquid storage cylinder is used for storing the liquid medicine for the detection, and after sampling vegetables and fruits, vegetables and fruits sample can mix with the liquid medicine in the mixing drum, then carries out the color comparison with the chromatogram in the color comparison section of thick bamboo again, and then can the short-term test vegetables and fruits go up pesticide residue and whether exceed standard, then reduced the outside influence that produces in vegetables and fruits sample transfer process, improved the accuracy nature that detects.

2. This be used for food detection to use pesticide short-term test device through setting up the hybrid lever, sets up the hybrid lever that links to each other with the rotary drum in the inside of mixing drum, can drive the hybrid lever through the cooperation of screw thread strip and thread groove when pressing the handle and pushing down and rotate, and then can make vegetables and fruits sample and liquid medicine flash mixed, improved the efficiency that detects.

3. This be used for food detection to use quick detection device of pesticide through setting up the cutter, sets up the cutter at the outer wall of mixing rod, and when mixing rod rotated and mixes vegetables and fruits sample and liquid medicine, the cutter can be smashed vegetables and fruits sample, and then can make vegetables and fruits sample can fully contact with the liquid medicine, and then can further improve the efficiency that detects.

4. This be used for food detection to use pesticide short-term test device through setting up the color comparison section of thick bamboo and circularizing tubular structure, when mixing the color comparison after finishing, can make mixed liquid enter into the color comparison section of thick bamboo and carry out the color comparison through invering whole device, and annular color comparison section of thick bamboo can reduce the stack of mixed liquid colour, and then accuracy when can improving the color comparison.

5. This be used for food detection to use quick detection device of pesticide sets up the filter screen between mixing drum and color comparison section of thick bamboo through setting up the filter screen, and when the mixed liquid in the mixing drum enters into the color comparison section of thick bamboo, can filter through the filter screen earlier, and then can prevent that the solid in the mixed liquid from entering into the influence color comparison, has further improved the accuracy of color comparison.

6. This be used for food to detect uses quick detection device of pesticide through setting to the threaded connection mode between will comparing a look section of thick bamboo and the mixing drum, after once detecting and finishing, will compare a look section of thick bamboo and dismantle from the mixing drum and can change the filter screen, and can conveniently compare the washing of a look section of thick bamboo.

7. This be used for food to detect uses quick detection device of pesticide, through setting up the spiral sword, set up detachable spiral sword in the inside of drain pan, when examining foliation vegetables and fruits, with spiral sword dismantlement down can drop into the mixing drum with vegetables and fruits, when examining fruit form vegetables and fruits, through rotating device with drive spiral sword rotation can downcut vegetables and fruits epidermis and enter into the mixing drum and detect, made things convenient for the use.

8. This be used for food to detect quick detection device of pesticide, through setting up the middle piece, set up the middle piece in the intermediate position of spiral sword, the bottom surface of middle piece is higher than the blade of spiral sword, when the spiral sword carries out the cut appearance to the fruit, when to certain degree of depth after, the middle piece can support on the fruit surface, and then prevents that the spiral sword from cutting appearance too deeply and leading to detecting not accurate.

9. This be used for food detection to use quick detection device of pesticide, through setting up the sawtooth groove, set up the sawtooth groove in the blade department of spiral sword, when the spiral sword was sampled fruit, the blade of seting up the sawtooth groove can make the sample of cutting become the thin strip form, and then made things convenient for the mixture of fruit sample and liquid medicine in the mixing drum.

10. This be used for food to detect quick detection device of pesticide, through setting up the cutting steel wire, set up the cutting steel wire in blade one side of spiral sword, when thin banding sample moves on the spiral sword and enters into the mixing drum, the cutting steel wire can make the sample further broken, has further improved the mixed effect of sample and liquid medicine.

Drawings

FIG. 1 is a schematic overall structure diagram of a rapid pesticide detection device based on a chromatographic detection method according to the present invention;

FIG. 2 is a side sectional view of a partial structure of a rapid pesticide detection device based on a chromatographic detection method;

FIG. 3 is a schematic structural diagram of a rotating drum and a pressing handle of the rapid pesticide detection device based on a chromatographic detection method;

FIG. 4 is a schematic structural diagram of a gas leakage cylinder of the rapid pesticide detection device based on a chromatographic detection method;

fig. 5 is a schematic structural diagram of a spiral knife of the rapid pesticide detection device based on a chromatographic detection method.

In the figure: 1 mixing cylinder, 2 colorimetric cylinder, 3 air release cylinder, 4 pressing handle, 5 pressing cap, 6 pressing rod, 7 filling port, 8 liquid storage cylinder, 9 chromatogram, 10 bottom shell, 11 bottom cover, 12 piston block, 13 liquid inlet fine cylinder, 14 filter screen, 15 mixing rod, 16 cutting knife, 17 rotating rod, 18 middle cylinder, 19 first spring, 20 first connecting rod, 21 second connecting rod, 22 rotating cylinder, 23 thread strip, 24 thread groove, 25 second spring, 26 air release hole, 27 plugging block, 28 knife ring, 29 middle block, 30 spiral knife, 31 sawtooth groove, 32 cutting steel wire and 33 plugging ring.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-4, a pesticide rapid detection device based on a chromatographic detection method comprises a mixing cylinder 1, the bottom surface of the mixing cylinder 1 is an inclined plane, the bottom of the mixing cylinder 1 is provided with a feed inlet, the bottom of the feed inlet is fixedly connected with a bottom shell 10, the bottom outer wall of the bottom end of the bottom shell 10 is connected with a bottom cover 11 through threads, a liquid storage cylinder 8 is arranged inside the mixing cylinder 1, at least two second connecting rods 21 which are uniformly distributed in an annular shape are fixedly connected between the side outer wall of the liquid storage cylinder 8 and the top of the side inner wall of the mixing cylinder 1, the top of the side outer wall of the mixing cylinder 1 is connected with a colorimetric cylinder 2 through threads, the colorimetric cylinder 2 is in an annular transparent cylindrical structure, the side outer wall of the colorimetric cylinder 2 is provided with a chromatograph 9, the inner wall of the colorimetric cylinder 2 is attached to the outer wall of the liquid storage cylinder 8, a filter screen 14 is pressed between the bottom outer wall, and the top of the liquid inlet thin cylinder 13 is provided with a liquid filling port 7, a liquid filling cover is arranged on the liquid filling port 7, the side inner wall of the liquid storage cylinder 8 is connected with a piston block 12 in a sliding manner, the top outer wall of the piston block 12 is fixedly connected with four compression rods 6 which are uniformly distributed in an annular manner, the top end of each compression rod 6 extends to the upper side of the liquid storage cylinder 8, the top end of each compression rod 6 is fixedly connected with a compression cap 5, the bottom of the side inner wall of the liquid storage cylinder 8 is fixedly connected with an intermediate cylinder 18 through a first connecting rod 20, the intermediate cylinder 18 is of an inverted T-shaped structure, the side outer wall of the intermediate cylinder 18 is connected with a blocking ring 33 in a sliding manner, at least four first springs 24 which are uniformly distributed in an annular manner are fixedly connected between the bottom outer wall of the blocking ring 33 and.

In the invention, the side inner wall of the middle cylinder 18 is connected with a rotary cylinder 22 through a bearing, the side inner wall of the rotary cylinder 22 is provided with a pressing handle 4, the side outer wall of the pressing handle 4 is provided with a thread groove 24, the side inner wall of the rotary cylinder 22 is provided with a thread strip 23 matched with the thread groove 24, the top end of the pressing handle 4 is fixedly connected with the bottom outer wall of the pressing cap 5, and the top end of the side outer wall of the rotary cylinder 22 is connected with the top surface of the liquid storage cylinder 8 through a bearing.

Wherein, the bottom fixedly connected with of rotary drum 22 extends to the inside bull stick 17 of mixing drum 1, and the side outer wall fixedly connected with evenly distributed's of bull stick 17 mixing rod 15.

Wherein, the outer wall of the side of the mixing rod 15 is fixedly connected with cutters 16 which are evenly distributed.

Wherein, open at the side outer wall top of color comparison section of thick bamboo 2 has the mouth of disappointing, and the side inner wall fixedly connected with of the mouth of disappointing leaks gas cylinder 3, the side outer wall of the inside of color comparison section of thick bamboo 2 of the orientation of a section of thick bamboo 3 of disappointing is opened there is the round hole, the opposite side inner wall of a section of thick bamboo 3 of disappointing is opened there is the hole 26 of disappointing, one side of round hole is provided with the sprue 27 with round hole looks adaptation, fixedly connected with second spring 25 between the side outer wall of sprue 27 and the side inner wall of a section of thick bamboo 3 of disappointing.

Wherein, the inner wall of the side of the bottom shell 10 is connected with a cutter ring 28 through a thread, the inner wall of the side of the cutter ring 28 is fixedly connected with a spiral cutter 30, the center position of the spiral cutter 30 is fixedly connected with an intermediate block 29, and the bottom surface of the intermediate block 29 is higher than the cutting edge of the spiral cutter 30.

When the invention is used: injecting detection liquid medicine into the liquid storage cylinder 8 through the liquid filling port 7, covering a liquid filling cover, when sampling is carried out, when leafy vegetables and fruits need to be detected, unloading the guide ring 28, directly putting a sample into the mixing cylinder 1, when the leafy vegetables and fruits need to be detected, rotating the mixing cylinder 1, driving the spiral knife 30 to rotate, further enabling the fruit skin to enter the mixing cylinder 1, covering the bottom cover 11 after the sample enters the mixing cylinder 1, enabling the bottom cover 11 to face downwards, then pressing the pressing cap 5, further enabling the pressing rod 6 to press downwards, further extruding the liquid medicine in the liquid storage cylinder 8, the blocking ring 33, entering the mixing cylinder 1, extruding the blocking block 27, discharging the gas from the gas leakage hole 26, then opening the liquid filling port 7, then continuously pulling the pressing cap 5 up and down, namely driving the rotary cylinder 22 to rotate by the pressing handle 4, further driving the mixing rod 15 and the cutter 16 to rotate, thereby make liquid medicine and sample intensive mixing, and make the sample abundant broken, after the mixture finishes, invert detection device and make pressure cap 5 down, the mixed liquid then can be filtered the back by filter screen 14 and enter into color comparison section of thick bamboo 2 this moment, because second spring 25's pressure, the hydraulic pressure in the color comparison section of thick bamboo 2 can not make the sprue 27 open, then compare the content that can detect the pesticide of color comparison section of thick bamboo 2 and chromatogram 9, lift off color comparison section of thick bamboo 2 and can change filter screen 14.

Example 2

Referring to fig. 5, in the present embodiment, compared with embodiment 1, a serrated groove 31 is formed on a cutting edge of a spiral knife 30, and a vertically arranged cutting steel wire 32 is fixedly connected to an outer wall of the spiral knife 30.

When the invention is used: compared with the embodiment 1, the cutting edge provided with the sawtooth groove 31 can enable the cut sample to be in a thin strip shape, the cutting steel wire 32 can enable the sample to be further broken, and the mixing effect of the sample and the liquid medicine is further improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.