Pretreatment device suitable for pesticide detection

Abstract

The utility model relates to the technical field of pesticide residue detection, and discloses a pretreatment device suitable for pesticide detection, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a liquid storage cylinder, the top end of the liquid storage cylinder is fixedly connected with a top cover, the inner wall of the top cover is rotatably connected with a filter barrel, the outer wall of the filter barrel is fixedly connected with sleeve teeth, and the sleeve teeth are fixedly connected with the top cover. A sliding cover is slidably connected to the top of the top cover, a transmission shaft is rotatably connected to the position, close to the edge, of the inner wall of the top cover, and a second micro motor is fixedly connected to the position, close to the edge, of the top of the top cover. According to the device, the micro motor II is started to drive the clamping block to rotate, then the clamping groove drives the rotating shaft to rotate so that the cutting blade can cut up materials to be detected, then the micro motor I is started to drive the bevel gear II to rotate, the purpose of integrated treatment is achieved, errors of detection results are avoided, the detection precision is improved, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pesticide residue detection, especially to a pretreatment device suitable for pesticide detection. BACKGROUND

[0002] Pesticide residue detection is an important link of food safety and public health, and its detection methods are mainly divided into two categories, namely physicochemical analysis method and biological determination method, wherein the physicochemical analysis method is to separate and detect different pesticides in the fixed phase and mobile phase according to the difference in distribution coefficient, and the biological determination method is to use the principle of specific combination of antigen-antibody to quickly and sensitively detect pesticide residues, and no matter which way, the sample needs to be pretreated before detection.

[0003] The sample pretreatment steps of pesticide residue detection include extraction, purification and concentration, the purpose is to extract pesticides from samples, remove interfering substances to prevent affecting the detection results, and the detection of pesticide residues helps to protect food safety, prevent pesticide residues from causing harm to human health, and also promotes sustainable development of agriculture, reduces pesticide use and reduces environmental pollution, so it is an important means to protect food safety and public health.

[0004] Before pesticide residue detection, the sample needs to be pretreated to separate interfering substances to prevent detection deviation, and in the existing sample pretreatment of pesticide residue detection, the steps of tissue crushing and separating tissue fluid are mostly carried out manually, when the pesticide residue is high, it is easy to cause harm to human body, and at the same time, impurities may enter when different steps are carried out, resulting in errors in detection results and reducing detection efficiency. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a pretreatment device suitable for pesticide detection, which aims to improve the problem that in the prior art, the steps of tissue crushing and separating tissue fluid in the sample pretreatment of pesticide residue detection are mostly carried out manually, when the pesticide residue is high, it is easy to cause harm to human body, and when different steps are carried out, impurities may enter, resulting in errors in detection results.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a pretreatment device suitable for pesticide detection, comprising a bottom plate, the top of the bottom plate is fixedly connected to a liquid storage cylinder, the top of the liquid storage cylinder is fixedly connected to a top cover, the inner wall of the top cover is rotatably connected to a filter barrel, the outer wall of the filter barrel is fixedly connected to a sleeve gear, the top of the top cover is slidably connected to a sliding cover, the inner wall of the top cover is rotatably connected to a transmission shaft near the edge, the top of the top cover is fixedly connected to a micro motor 2 near the edge, the output end of the micro motor 2 is fixedly connected to a bevel gear 2, the top of the transmission shaft The end is fixedly connected with bevel gear 1, the outer wall of the transmission shaft is fixedly connected with circular gear 2, the outer wall of the sleeve tooth is meshed with the outer wall of circular gear 2, the outer wall of bevel gear 1 is meshed with the outer wall of bevel gear 2, the inner wall of the filter barrel is rotatably connected with a rotating shaft, the outer walls of the rotating shaft are fixedly connected with multiple cutting blades, the top of the rotating shaft is provided with a card slot, the inner wall of the sliding cover is fixedly connected with micro motor 2, the output end of the micro motor 2 is fixedly connected with a card block, and the middle part of the top surface of the bottom plate is fixedly connected with a cleaning structure, and the cleaning structure is used to automatically and quickly clean the device.

[0007] As a further description of the above technical solution:

[0008] The cleaning structure includes a liquid tank, the top of the liquid tank is connected to a micro water pump, the middle of the inner wall of the liquid storage cylinder is rotatably connected to an annular hard pipe, the bottom of the annular hard pipe is fixedly connected to a plurality of nozzles, the inward side of the annular hard pipe is fixedly connected to a plurality of latches, the middle of the outer wall of the transmission shaft is fixedly connected to a circular gear 1, the outer wall of the circular gear 1 is meshed with the outer wall of the latch, the outer wall of the liquid storage cylinder is provided with a drainage groove, and the inner wall of the drainage groove is connected to a guide pipe.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the guide pipe is slidably connected with a sliding plug, the rear side of the sliding plug is provided with a drawing groove, and the right side of the liquid tank is fixedly connected with an observation window 2.

[0011] As a further description of the above technical solution:

[0012] A plurality of handles are fixedly connected to the outer walls of the sliding cover, and an anti-slip sleeve is fixedly connected to the outer walls of the handles.

[0013] As a further description of the above technical solution:

[0014] A controller is fixedly connected to the top front side of the bottom plate, and the controller is electrically connected to the micro water pump, the second micro motor and the first micro motor respectively.

[0015] As a further description of the above technical solution:

[0016] The bottom of the base plate is fixedly connected with an anti-skid pad, and the front side of the base plate near the edge is fixedly connected with a plurality of indicator lights.

[0017] As a further description of the above technical solution:

[0018] A nameplate is fixedly connected to the right side of the bottom plate, a plurality of screws are threadedly connected to the inner wall of the nameplate, and a hollow protective shell is fixedly connected to the top rear side of the top cover.

[0019] As a further description of the above technical solution:

[0020] A display screen is fixedly connected to the right side of the top of the bottom plate, an observation window 1 is fixedly connected to the right side of the outer wall of the liquid storage cylinder, and a detector is fixedly connected to the inner wall of the liquid storage cylinder.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by starting the second micro motor to drive the card block to rotate, and then driving the rotating shaft to rotate through the card slot, the cutting blade can cut the material to be tested, and then starting the first micro motor to drive the second bevel gear to rotate, so that the first bevel gear can drive the transmission shaft to rotate, so that the second circular gear can drive the filter barrel to rotate through the sleeve gear to centrifugally separate the material inside to the bottom of the bottom plate, thereby achieving the purpose of integrated processing, avoiding errors in the test results, improving the test accuracy, and accelerating the test efficiency.

[0023] 2. In the utility model, the liquid in the liquid tank is extracted into the annular hard tube by starting the micro water pump, and then sprayed out from the nozzle, and the micro motor is started to drive the transmission shaft to rotate, so that the circular gear can rotate together, and then the annular hard tube is driven to rotate in the liquid storage cylinder through the latch teeth, thereby performing rotational cleaning. The cleaned liquid is guided and discharged by the guide pipe through the drainage groove, achieving the purpose of fast and contactless cleaning, improving detection accuracy, and accelerating maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of a pretreatment device suitable for pesticide detection proposed by the present invention;

[0025] Figure 2 This is a side view of a pretreatment device suitable for pesticide detection proposed by the utility model;

[0026] Figure 3 This is a partial structural diagram of a pretreatment device suitable for pesticide detection proposed by the utility model;

[0027] Figure 4 for Figure 3 A magnified view of point A in the figure;

[0028] Figure 5 A local structure split drawing of the clamping block of the pretreatment device suitable for pesticide detection is provided for the utility model.

[0029] Figure 6 A local structure split drawing of the top cover of the pretreatment device suitable for pesticide detection is provided for the utility model.

[0030] Legend:

[0031] 1, bottom plate; 2, cleaning structure; 201, liquid tank; 202, micro water pump; 203, flow guide pipe; 204, drain groove; 205, clamping tooth; 206, spray head; 207, annular hard pipe; 208, circular gear one; 3, liquid storage cylinder; 4, sliding cover; 5, sleeve tooth; 6, filter barrel; 7, clamping groove; 8, cutting piece; 9, rotating shaft; 10, circular gear two; 11, bevel gear one; 12, bevel gear two; 13, micro motor one; 14, micro motor two; 15, clamping block; 16, top cover; 17, detector; 18, controller; 19, non-slip pad; 20, indicator light; 21, display screen; 22, screw; 23, nameplate; 24, observation window one; 25, observation window two; 26, pull groove; 27, sliding plug; 28, non-slip sleeve; 29, handle; 30, hollow protective shell; 31, transmission shaft. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 3The utility model provides an embodiment: a kind of pretreatment device suitable for pesticide detection, including bottom plate 1, the top of bottom plate 1 is fixedly connected with liquid storage cylinder 3, bottom plate 1 is used to support the device, the top end of liquid storage cylinder 3 is fixedly connected with top cover 16, the inner wall of top cover 16 is rotatably connected with filter barrel 6, the outer wall of filter barrel 6 is fixedly connected with sleeve tooth 5, liquid storage cylinder 3 is used to store sample after processing, the inner wall of top cover 16 is rotatably connected with transmission shaft 31 near edge, the top of top cover 16 is fixedly connected with micro motor two 14 near edge, the output of micro motor two 14 is fixedly connected with bevel gear two 12, micro motor two 14 is used to provide power for the device, the top end of transmission shaft 31 is fixedly connected with bevel gear one 11, the outer wall of transmission shaft 31 is fixedly connected with round gear two 10, the outer wall of sleeve tooth 5 is meshedly connected with the outer wall of round gear two 10, the outer wall of bevel gear one 11 is meshedly connected with the outer wall of bevel gear two 12, bevel gear one 11 cooperates bevel gear two 12 and carries out the transmission of power;

[0034] Specifically, filter barrel 6 can separate sample and interferent by centrifugal separation, thereby improving the accuracy of detection, micro motor two 14 can transmit power through the cooperation of bevel gear one 11 and bevel gear two 12, thereby providing power for the entire structure, liquid storage cylinder 3 can store and support the sample separated by centrifugal separation of filter barrel 6 for next step detection, and transmission shaft 31 is the end of power transmission, which transmits power to the remaining components through round gear two 10.

[0035] Please refer to the accompanying drawings Figure 4 The accompanying drawings Figure 6 The inner wall of filter barrel 6 is rotatably connected with rotating shaft 9, the outer wall of rotating shaft 9 is fixedly connected with a plurality of cutting blades 8, the top end of rotating shaft 9 is provided with clamping groove 7, and cutting blade 8 is used for cutting sample, the top of top cover 16 is slidably connected with sliding cover 4, the inner wall of sliding cover 4 is fixedly connected with micro motor two 14, the output of micro motor two 14 is fixedly connected with clamping block 15, and sliding cover 4 is used for sealing the top to prevent sample splashing, the top surface of bottom plate 1 is fixedly connected with cleaning structure 2, cleaning structure 2 is used for automatically and quickly cleaning the device, the outer wall of sliding cover 4 is fixedly connected with a plurality of handles 29, the outer wall of handle 29 is fixedly connected with anti-skid sleeve 28, and handle 29 is used to help user move sliding cover 4.

[0036] Specifically, cutting blade 8 can cut the required sample to the required size, so that the interferent is separated out by centrifugal separation, and the influence on the detection result is avoided, meanwhile, micro motor two 14 can drive clamping block 15 to rotate, and can be clamped between clamping block 15 and clamping groove 7, so as to drive rotating shaft 9 to rotate, and anti-skid sleeve 28 can prevent user from dropping handle 29 when moving sliding cover 4, so as to prevent hand from slipping.

[0037] Please refer to the attached Figure 3 - the attached Figure 5 , the cleaning structure 2 comprises a liquid tank 201, the top of the liquid tank 201 is communicated with a micro water pump 202, the inner wall of the middle of the liquid storage cylinder 3 is rotatably connected with an annular hard pipe 207, the liquid tank 201 is used for storing cleaning liquid, the bottom of the annular hard pipe 207 is fixedly connected with a plurality of spray heads 206, the inward side of the annular hard pipe 207 is fixedly connected with a plurality of clamping teeth 205, the outer wall of the middle of the transmission shaft 31 is fixedly connected with a circular gear 208, the spray head 206 is used for spraying cleaning liquid, the outer wall of the circular gear 208 is engaged with the outer wall of the clamping tooth 205, the outer wall of the liquid storage cylinder 3 is provided with a drain groove 204, the inner wall of the drain groove 204 is communicated with a flow guide pipe 203, the inner wall of the flow guide pipe 203 is slidably connected with a sliding plug 27, the drain groove 204 is used for discharging waste liquid after cleaning, the rear side of the sliding plug 27 is provided with a pull groove 26, the right side of the liquid tank 201 is fixedly connected with an observation window 25, the observation window 25 is used for observing the liquid level in the liquid tank 201;

[0038] Specifically, the sliding plug 27 can block the flow guide pipe 203 when there is no need to discharge liquid, so as to block the drain groove 204, thereby avoiding leakage during sample processing, at the same time, the pull groove 26 can facilitate the user to pull the sliding plug 27, the observation window 25 can help the user to observe the liquid level in the liquid tank 201, so as to determine whether to add liquid, the annular hard pipe 207 can communicate the spray head 206 to enable it to spray cleaning liquid, and at the same time, drive it to rotate to accelerate cleaning, the micro water pump 202 is used to push the liquid to move, so as to clean.

[0039] Please refer to the attached Figure 2 - the attached Figure 4 , the top right side of the bottom plate 1 is fixedly connected with a display screen 21, the right side of the outer wall of the liquid storage cylinder 3 is fixedly connected with an observation window 24, the inner wall of the liquid storage cylinder 3 is fixedly connected with a detector 17, the display screen 21 is used for displaying the running state of the device, the right side of the bottom plate 1 is fixedly connected with a nameplate 23, the inner wall of the nameplate 23 is threadedly connected with a plurality of screws 22, the top rear side of the top cover 16 is fixedly connected with a hollow protective shell 30, the top front side of the bottom plate 1 is fixedly connected with a controller 18, the nameplate 23 is used to help the user to understand the related information of the device, the controller 18 is electrically connected with the micro water pump 202, the bottom of the bottom plate 1 is fixedly connected with an anti-skid pad 19, the micro motor two 14 and the micro motor one 13, the front side of the bottom plate 1 is fixedly connected with a plurality of indicator lights 20, the controller 18 is used to control the electrical elements of the device;

[0040] Specifically, the screw 22 can fix the nameplate 23 in a conspicuous position, so that the user can quickly understand the relevant information of the device through the nameplate 23, the indicator light 20 is used to help the user to understand the running state of the device, the display screen 21 can display the specific progress of the sample processing, and the hollow protective shell 30 can protect the electrical elements in it. The model of the micro motor two 14 and the micro motor one 13 is GA12-N20, and the model of the micro water pump 202 is BSP-S.

[0041] Working principle: when the material needs to be pretreated, first, the sliding cover 4 is lifted up, the material to be detected is placed into the filter barrel 6, then the clamping block 15 is inserted into the clamping groove 7, so that the sliding cover 4 seals the top of the filter barrel 6, then the micro motor two 14 is started to drive the clamping block 15 to rotate, so that the cutting piece 8 can cut the material to be detected, after cutting is completed, the micro motor two 14 is turned off, the micro motor one 13 is started to drive the bevel gear two 12 to rotate, so that the bevel gear one 11 is driven to rotate, the transmission shaft 31 can be driven to rotate the circular gear two 10, the sleeve teeth 5 drive the filter barrel 6 to rotate in the top cover 16, and the material in the filter barrel 6 is centrifuged to fall into the detector 17 on the bottom of the base plate 1 for weighing and collecting;

[0042] After the treatment is completed, in order to avoid damage to the user's body caused by the pesticide, first, the sliding plug 27 is pulled out to collect the separated liquid through the flow guide pipe 203, then the micro water pump 202 is started to pump the liquid in the liquid tank 201 into the annular hard pipe 207 and then sprayed from the spray head 206, then the micro motor one 13 is started to drive the bevel gear two 12 to rotate, so that the bevel gear one 11 and the transmission shaft 31 are driven to rotate, so that the circular gear one 208 can drive the annular hard pipe 207 to rotate in the liquid storage cylinder 3, so as to circularly clean the base plate 1 and the filter barrel 6.

[0043] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pretreatment device suitable for pesticide detection, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected with a liquid storage cylinder (3), the top end of the liquid storage cylinder (3) is fixedly connected with a top cover (16), the inner wall of the top cover (16) is rotatably connected with a filter barrel (6), the outer wall of the filter barrel (6) is fixedly connected with a sleeve gear (5), the top of the top cover (16) is slidably connected with a sliding cover (4), the inner wall of the top cover (16) is rotatably connected with a transmission shaft (31) near the edge, the top of the top cover (16) is fixedly connected with a micro motor two (14) near the edge, the output end of the micro motor two (14) is fixedly connected with a bevel gear two (12), the top end of the transmission shaft (31) is fixedly connected with a bevel gear one (11), the outer wall of the transmission shaft (31) is fixedly connected with a round gear two (10), the outer wall of the sleeve gear (5) is meshedly connected with the outer wall of the round gear two (10), the outer wall of the bevel gear one (11) is meshedly connected with the outer wall of the bevel gear two (12), the inner wall of the filter barrel (6) is rotatably connected with a rotating shaft (9), the outer wall of the rotating shaft (9) is fixedly connected with a plurality of cutting blades (8), the top end of the rotating shaft (9) is provided with a clamping groove (7), the inner wall of the sliding cover (4) is fixedly connected with a micro motor two (14), the output end of the micro motor two (14) is fixedly connected with a clamping block (15), the top surface of the bottom plate (1) is fixedly connected with a cleaning structure (2), and the cleaning structure (2) is used for automatically and quickly cleaning the device.

2. The pretreatment device suitable for pesticide detection according to claim 1, characterized in that: The cleaning structure (2) comprises a liquid tank (201), the top of the liquid tank (201) is communicated with a micro water pump (202), the inner wall of the liquid storage cylinder (3) is rotatably connected with an annular hard pipe (207) in the middle, the bottom of the annular hard pipe (207) is fixedly connected with a plurality of spray heads (206), the inward side of the annular hard pipe (207) is fixedly connected with a plurality of clamping teeth (205), the outer wall of the transmission shaft (31) is fixedly connected with a round gear one (208) in the middle, the outer wall of the round gear one (208) is meshedly connected with the outer wall of the clamping teeth (205), the outer wall of the liquid storage cylinder (3) is provided with a drain groove (204), and the inner wall of the drain groove (204) is communicated with a flow guide pipe (203).

3. The pre-treatment device for pesticide detection according to claim 2, characterized in that: The inner wall of the flow guide pipe (203) is slidably connected with a sliding plug (27), the rear side of the sliding plug (27) is provided with a pulling groove (26), and the right side of the liquid tank (201) is fixedly connected with an observation window two (25).

4. The pre-treatment device for pesticide detection according to claim 1, characterized in that: The outer wall of the sliding cover (4) is fixedly connected with a plurality of handles (29), and the outer wall of the handle (29) is fixedly connected with an anti-skid sleeve (28).

5. The pre-treatment device for pesticide detection according to claim 1, wherein: The top front side of the bottom plate (1) is fixedly connected with a controller (18), and the controller (18) is electrically connected with the micro water pump (202), the micro motor two (14) and the micro motor one (13) respectively.

6. The pre-treatment device for pesticide detection according to claim 1, characterized in that: The bottom of the bottom plate (1) is fixedly connected with an anti-skid pad (19), and the front side of the bottom plate (1) is fixedly connected with a plurality of indicator lights (20) near the edge.

7. The pre-treatment device for pesticide detection according to claim 1, characterized in that: The right side of the bottom plate (1) is fixedly connected with a nameplate (23), the inner wall of the nameplate (23) is threadedly connected with a plurality of screws (22), and the top rear side of the top cover (16) is fixedly connected with a hollow protective shell (30).

8. The pre-treatment device for pesticide detection according to claim 1, characterized in that: The top right side of the bottom plate (1) is fixedly connected with a display screen (21), the right side of the outer wall of the liquid storage cylinder (3) is fixedly connected with an observation window (24), and the inner wall of the liquid storage cylinder (3) is fixedly connected with a detector (17).

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