CN110672396B - Pesticide residue detects preprocessing device - Google Patents
Pesticide residue detects preprocessing device Download PDFInfo
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- CN110672396B CN110672396B CN201911177092.XA CN201911177092A CN110672396B CN 110672396 B CN110672396 B CN 110672396B CN 201911177092 A CN201911177092 A CN 201911177092A CN 110672396 B CN110672396 B CN 110672396B
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- 239000000447 pesticide residue Substances 0.000 title claims abstract description 17
- 238000007781 pre-processing Methods 0.000 title claims description 3
- 238000003756 stirring Methods 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 39
- 239000000872 buffer Substances 0.000 claims description 24
- 239000007853 buffer solution Substances 0.000 claims description 20
- 238000002360 preparation method Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 claims 1
- 235000012055 fruits and vegetables Nutrition 0.000 abstract description 11
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 6
- 239000006172 buffering agent Substances 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 14
- 230000009471 action Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 7
- 238000011095 buffer preparation Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/30—Staining; Impregnating ; Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis
- G01N1/31—Apparatus therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/386—Other diluting or mixing processes
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a pretreatment device for detecting pesticide residue, which comprises a main box body, wherein a crushing cavity with an upward opening is arranged in the main box body, the fruit and vegetable crusher can crush fruits and vegetables to be detected, a worm cavity is communicated with the front side of the crushing cavity, a water storage cavity with an upward opening is arranged on the right side of the crushing cavity, a water pump is fixedly arranged between the water storage cavity and the crushing cavity, after the treatment is finished, the automatic cleaning is carried out to prevent the interference to the subsequent detection, a stirring transmission mechanism is arranged at the lower side of the driving shaft, a clutch transmission mechanism is arranged at the lower side of the worm cavity, a key cavity with a leftward opening is arranged at the left end surface of the main box body, reagents required for detection can be automatically added into the stirring cavity after the key is pressed down, the right side of the worm cavity is provided with a medicament dropping mechanism, the right side of the medicament dropping mechanism is provided with a buffering agent feeding mechanism, and the lower side of the buffering agent feeding mechanism is provided with a stirring mechanism.
Description
Technical Field
The invention relates to the field of food safety, in particular to a pretreatment device for pesticide residue detection.
Background
At present agricultural product pesticide residue detects and uses the manual work more to give first place to, mainly because pesticide residue detection step is many, the more and dose difference of reagent that need use, manual operation's direct consequence is exactly that detection efficiency is low, and there is the error according to the difference that detects at every turn and add reagent quantity, simultaneously to some non-professional, manual operation step is many, difficult to get one's hands, the study degree of difficulty is big, and because reagent is more, it is loaded down with trivial details to detect the washing after accomplishing, if not clear abundant, then can cause the influence to the testing result afterwards.
Disclosure of Invention
The invention aims to provide a pretreatment device for detecting pesticide residues, which is used for overcoming the defects in the prior art.
The pesticide residue detection pretreatment device comprises a main box body, wherein a grinding cavity with an upward opening is arranged in the main box body, a worm cavity is communicated with the front side of the grinding cavity, a motor is fixed in the front end wall of the worm cavity, a driving shaft which extends backwards into the grinding cavity is fixed on the rear end wall of the motor, a left grinding wheel which is fixedly connected with the driving shaft is arranged in the grinding cavity, a first driven shaft is arranged on the rear end face of the grinding cavity in a rotating matching manner, a right grinding wheel which is fixedly connected with the first driven shaft is arranged in the grinding cavity, the right grinding wheel is meshed with the left grinding wheel, a water storage cavity with an upward opening is arranged on the right side of the grinding cavity, a water pump is fixedly arranged between the water storage cavity and the grinding cavity, a water inlet pipe which penetrates through the water pump is communicated between the water storage cavity and the grinding cavity, and a worm wheel which is fixedly connected with the driving shaft is arranged in the worm cavity, the front side of the worm wheel is provided with a first belt wheel fixedly connected with the driving shaft, the lower side of the first belt wheel is provided with a stirring transmission mechanism, the upper wall of the worm cavity is provided with a second driven shaft in rotating fit, the second driven shaft is fixedly connected with a worm, the worm is meshed with the worm wheel, the lower side of the worm is provided with a clutch transmission mechanism, the left end surface of the main box body is provided with a key cavity with a left opening, the right side of the worm cavity is provided with a medicament dripping mechanism, the right side of the medicament dripping mechanism is provided with a buffering agent feeding mechanism, and the lower side of the buffering agent feeding mechanism is provided with a stirring mechanism.
On the basis of the technical scheme, the stirring transmission mechanism comprises a bevel gear cavity, the bevel gear cavity is located on the lower side of the worm cavity, a third driven shaft is arranged on the rear wall of the bevel gear cavity in a rotating fit mode, a second belt wheel is fixedly connected to the third driven shaft, a first transmission belt is connected between the first belt wheels in a power fit mode, a first bevel gear fixedly connected with the third driven shaft is arranged on the front side of the second belt wheel, a fourth driven shaft is arranged on the bottom end of the bevel gear cavity in a rotating fit mode, a second bevel gear meshed with the first bevel gear is fixedly connected to the fourth driven shaft, and a third belt wheel fixedly connected with the fourth driven shaft is arranged on the lower side of the second bevel gear.
On the basis of the technical scheme, the clutch transmission mechanism comprises a clutch cavity, the clutch cavity is positioned at the lower side of the worm cavity, the second driven shaft extends downwards into the clutch cavity, a spline cavity with a downward opening is arranged in the bottom end of the second driven shaft, a spline shaft is connected in the spline cavity in a spline fit manner, a spline shaft extension spring is fixedly connected between the top end face of the spline shaft and the top wall of the spline cavity, a pressing plate is connected on the spline shaft in a rotating fit manner, a magnet is annularly fixed on the upper end face of the pressing plate, an electromagnet fixedly connected with the left side wall of the clutch cavity is arranged on the upper side of the pressing plate, magnetism is repelled with the magnet when the electromagnet is started, an upper friction wheel fixedly connected with the spline shaft is arranged on the lower side of the pressing plate, a pressing plate extension spring is fixedly connected between the upper end face of the pressing plate and the upper, the top end of the fifth driven shaft is fixedly connected with a lower friction wheel, the lower side of the lower friction wheel is arranged on a rotary disc fixedly connected with the fifth driven shaft, the lower side of the rotary disc is provided with a wire wheel fixedly connected with the fifth driven shaft, the lower side of the wire wheel is provided with a spiral spring, one end of the spiral spring is fixedly connected with the fifth driven shaft, the other end of the spiral spring is fixedly connected with the bottom wall of the clutch cavity, ratchet cavities with outward openings are symmetrically arranged in the rotary disc, the lower wall of the ratchet cavities is rotationally and cooperatively connected with a ratchet fixing shaft, ratchets are fixedly connected on the ratchet fixing shaft, the right side of the fifth driven shaft is provided with a sixth driven shaft rotationally and cooperatively connected with the bottom wall of the clutch cavity, the sixth driven shaft is fixedly connected with a transmission gear, the outer side of the rotary disc is provided with an inner, and a fourth belt wheel fixedly connected with the sixth driven shaft is arranged on the upper side of the transmission gear.
On the basis of the technical scheme, a key is connected in a sliding fit mode in the key cavity, a key compression spring is fixedly connected between the right end face of the key and the right end wall of the key cavity, a key push block cavity with an upward opening is arranged in the key, a key push block is arranged in the key push block cavity in a sliding connection mode, a key push block compression spring is fixedly connected between the bottom face of the key push block cavity and the bottom wall of the key push block cavity, the other end of the key push block bottom face is fixedly connected with a pull rope fixedly connected with the wire wheel, a key push block groove is formed in the upper wall of the key cavity in a communicating mode, a sensor is fixedly connected to the top wall of the key push block groove, and the sensor controls the electromagnet.
On the basis of the technical scheme, the medicament dripping mechanism comprises a dripping pipe cavity, the dripping pipe cavity is positioned on the right side of the clutch cavity and is opened upwards, the left side of the dripping pipe cavity is communicated with a cam cavity, a color development liquid belt wheel cavity is arranged on the lower side of the cam cavity, a seventh driven shaft which extends downwards to penetrate through the color development liquid belt wheel cavity is connected to the bottom wall of the cam cavity in a rotating fit manner, a cam which is fixedly connected with the seventh driven shaft is arranged in the cam cavity, a fifth belt wheel which is fixedly connected with the seventh driven shaft is arranged in the cam, a cam push block is arranged in the cam cavity in a sliding fit manner, the left end surface of the cam push block is abutted against the cam, a push block stretching spring is fixedly connected between the left end surface of the cam push block and the left wall of the cam cavity, rubber blocks are symmetrically and fixedly connected to the left and right walls of the dripping pipe cavity, and a sharp, the top end of the sharp-nose glass tube is fixedly connected with a rubber head.
On the basis of the technical scheme, the buffering agent feeding mechanism comprises a buffering liquid cavity, the buffering liquid cavity is located on the right side of the dripping cavity, the opening of the buffering liquid cavity is upward, a buffering liquid preparation cavity is arranged on the lower side of the buffering liquid preparation cavity, a buffering liquid belt wheel cavity is arranged on the lower side of the buffering liquid preparation cavity, a buffering liquid inlet pipe is communicated and arranged between the buffering liquid cavity and the buffering liquid preparation cavity, the bottom wall of the buffering liquid preparation cavity is connected with an eighth driven shaft which extends downwards and penetrates through the buffering liquid belt wheel cavity in a rotating and matching manner, a sixth belt wheel fixedly connected with the eighth driven shaft is arranged in the buffering liquid belt wheel cavity, a second transmission belt is connected between the sixth belt wheel, a fifth belt wheel and a fourth belt wheel in a power matching manner, an upper end face of the eighth driven shaft and an upper blocking plate fixedly connected with the top wall of the buffering liquid preparation cavity are fixedly connected, and a lower end face of the upper blocking plate is A lower barrier plate.
On the basis of the technical scheme, the stirring mechanism comprises a stirring cavity, the stirring cavity is positioned at the lower side of the buffer solution belt wheel cavity, the lower side of the stirring cavity is provided with a stirring belt wheel cavity, a ninth driven shaft which extends downwards to penetrate through the stirring belt wheel cavity is arranged on the bottom wall of the stirring cavity in a rotating fit manner, a plurality of stirring rods fixedly connected with the ninth driven shaft are symmetrically arranged in the stirring cavity, a seventh belt wheel fixedly connected with the ninth driven shaft is arranged in the stirring belt wheel cavity, a third driving belt is connected between the seventh belt wheel and the third belt wheel in a power fit manner, a lower barrier plate is communicated between the stirring cavity and the buffer solution preparation cavity, a color developing solution outlet pipe is communicated between the stirring cavity and the dripping pipe cavity, a solution inlet pipe to be detected is communicated between the stirring cavity and the grinding cavity, and a solution outlet pipe to be detected which is communicated with the outside is arranged on the right side of the stirring cavity, and a rubber plug is arranged in the liquid outlet pipe to be detected in a sliding fit manner.
The invention has the beneficial effects that: the fruit and vegetable juice grinding device is simple in structure and convenient to operate, the fruit and vegetable to be detected can be automatically ground into juice after being added into the grinding cavity, the color developing agent and the buffer solution are automatically added and stirred after a button is pressed, meanwhile, the color developing agent can be changed into other small-dose reagents according to needs, the buffer solution can be changed into other large-dose solutions according to needs, the device is provided with a cleaning mechanism, and the fruit and vegetable juice grinding device is convenient to clean after detection is finished.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a pretreatment device for pesticide residue detection according to the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic sectional view taken along the line A-A in FIG. 2;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1;
FIG. 5 is a schematic sectional view taken along the direction C-C in FIG. 1;
FIG. 6 is a schematic sectional view of the structure of FIG. 1 taken along the direction D-D;
fig. 7 is an enlarged schematic view of fig. 1 at E.
Detailed Description
The invention will now be described in detail with reference to fig. 1-6, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1 to 6, a pretreatment device for pesticide residue detection according to an embodiment of the present invention includes a main box 14, a grinding chamber 54 with an upward opening is provided in the main box 14, a worm chamber 11 is provided in front of the grinding chamber 54, a motor 93 is fixed in front end wall of the worm chamber 11, a driving shaft 59 extending backward into the grinding chamber 54 is fixed in rear end wall of the motor 93, a left grinding wheel 60 fixedly connected to the driving shaft 59 is provided in the grinding chamber 54, a first driven shaft 61 is rotatably fitted in rear end surface of the grinding chamber 54, a right grinding wheel 62 fixedly connected to the first driven shaft 61 is provided in the grinding chamber 54, the right grinding wheel 62 is engaged with the left grinding wheel 60, a water storage chamber 55 with an upward opening is provided in right side of the grinding chamber 54, a water pump 64 is fixedly provided between the water storage chamber 55 and the grinding chamber 54, a water inlet pipe 63 penetrating through the water pump 64 is further communicated between the water storage cavity 55 and the crushing cavity 54, a worm wheel 10 fixedly connected with the driving shaft 59 is arranged in the worm cavity 11, a first belt wheel 94 fixedly connected with the driving shaft 59 is arranged on the front side of the worm wheel 10, a stirring transmission mechanism is arranged on the lower side of the first belt wheel 94, a second driven shaft 12 is arranged on the upper wall of the worm cavity 11 in a rotating fit manner, a worm 13 is fixedly connected to the second driven shaft 12, the worm 13 is meshed with the worm wheel 10, a clutch transmission mechanism is arranged on the lower side of the worm 13, a key cavity 46 with a leftward opening is arranged on the left end face of the main box body 14, a medicament dripping mechanism is arranged on the right side of the worm cavity 11, a buffer feeding mechanism is arranged on the right side of the medicament dripping mechanism, and a stirring mechanism is arranged on the lower side.
In addition, in one embodiment, the stirring transmission mechanism includes a bevel gear cavity 41, the bevel gear cavity 41 is located at the lower side of the worm cavity 11, a third driven shaft 43 is disposed on the rear wall of the bevel gear cavity 41 in a rotating fit manner, a second pulley 44 is fixedly connected to the third driven shaft 43, a first transmission belt 45 is connected between the 4 th belt pulley and the first pulley 94 in a power fit manner, a first bevel gear 42 fixedly connected to the third driven shaft 43 is disposed on the front side of the second pulley 44, a fourth driven shaft 40 is disposed at the bottom end of the bevel gear cavity 41 in a rotating fit manner, a second bevel gear 38 engaged with the first bevel gear 42 is fixedly connected to the fourth driven shaft 40, and a third pulley 39 fixedly connected to the fourth driven shaft 40 is disposed at the lower side of the second bevel gear 38.
In addition, in one embodiment, the clutch transmission mechanism includes a clutch cavity 92, the clutch cavity 92 is located at the lower side of the worm cavity 11, the second driven shaft 12 extends downward into the clutch cavity 92, a spline cavity 70 with a downward opening is arranged in the bottom end of the second driven shaft 12, a spline shaft 72 is connected in the spline cavity 70 in a spline fit manner, a spline shaft tension spring 71 is fixedly connected between the top end surface of the spline shaft 72 and the top wall of the spline cavity 70, a pressure plate 69 is connected in the spline shaft 72 in a rotating fit manner, a magnet 68 is annularly fixed on the upper end surface of the pressure plate 69, an electromagnet 67 fixedly connected with the left side wall of the clutch cavity 92 is arranged on the upper side of the pressure plate 69, the electromagnet 67 is magnetically repelled with the magnet 68 when being started, an upper friction wheel 66 fixedly connected with the spline shaft 72 is arranged on the lower side of the pressure plate 69, a pressure plate tension spring 73 is fixedly connected between the upper end surface of, a fifth driven shaft 91 is arranged on the lower wall of the clutch cavity 92 in a rotationally matched manner, the top end of the fifth driven shaft 91 is fixedly connected with a lower friction wheel 79, the lower side of the lower friction wheel 79 is arranged on a rotary disc 88 fixedly connected with the fifth driven shaft 91, the lower side of the rotary disc 88 is provided with a wire wheel 76 fixedly connected with the fifth driven shaft 91, the lower side of the wire wheel 76 is provided with a spiral spring 77, one end of the spiral spring is fixedly connected with the fifth driven shaft 91, the other end of the spiral spring is fixedly connected with the bottom end wall of the clutch cavity 92, ratchet cavities 85 with outward openings are symmetrically arranged in the rotary disc 88, a ratchet fixing shaft 86 is connected in a rotationally matched manner on the lower wall of the ratchet cavity 85, a ratchet 87 is fixedly connected on the ratchet fixing shaft 86, a sixth driven shaft 90 rotationally matched and connected with the bottom wall of the clutch cavity 92 is arranged, an inner ratchet wheel 84 is arranged on the outer side of the rotating disc 88, the outer end of the inner ratchet wheel 84 is meshed with the transmission gear 89, the inner end of the inner ratchet wheel 84 is positively meshed with the ratchet 87, and a fourth belt wheel 75 fixedly connected with a sixth driven shaft 90 is arranged on the upper side of the transmission gear 89.
In addition, in an embodiment, a key 48 is connected in the key cavity 46 in a sliding fit manner, a key compression spring 47 is fixedly connected between the right end face of the key 48 and the right end wall of the key cavity 46, a key push block cavity 49 with an upward opening is arranged in the key 48, a key push block 51 is arranged in the key push block cavity 49 in a sliding connection manner, a key push block compression spring 50 is fixedly connected between the bottom surface of the key push block 51 and the bottom wall of the key push block cavity 49, the bottom surface of the key push block 51 is also fixedly connected with the other end of the pull rope 78 fixedly connected with the wire wheel 76, a key push block groove 52 is communicated in the upper wall of the key cavity 46, an inductor 53 is fixedly connected to the top wall of the key push block groove 52, and the inductor 53 controls the electromagnet 67.
In addition, in one embodiment, the medicine dropping mechanism comprises a dropping tube cavity 57, the dropping tube cavity 57 is located at the right side of the clutch cavity 92 and is opened upwards, the left side of the dropping tube cavity 57 is communicated with a cam cavity 17, a developing solution belt wheel cavity 35 is arranged at the lower side of the cam cavity 17, a seventh driven shaft 36 which extends downwards to penetrate through the developing solution belt wheel cavity 35 is connected in a rotating fit manner in the bottom wall of the cam cavity 17, a cam 15 which is fixedly connected with the seventh driven shaft 36 is arranged in the cam cavity 17, a fifth belt wheel 37 which is fixedly connected with the seventh driven shaft 36 is arranged in the cam 15, a cam push block 18 is arranged in the cam cavity 17 in a sliding fit manner, the left end surface of the cam push block 18 abuts against the cam 15, a push block stretching spring 16 is fixedly connected between the left end surface of the cam push block 18 and the left wall of the cam cavity 17, rubber blocks 20 are symmetrically and fixedly connected to the left and right walls of the dropping, the rubber block 20 is provided with a sharp-nose glass tube 34 in a sliding connection mode, and the top end of the sharp-nose glass tube 34 is fixedly connected with a rubber head 19.
In addition, in one embodiment, the buffer feeding mechanism includes a buffer chamber 56, the buffer chamber 56 is located at the right side of the dripping chamber 57 and has an upward opening, a buffer preparation chamber 81 is disposed at the lower side of the buffer chamber 56, a buffer pulley chamber 24 is disposed at the lower side of the buffer preparation chamber 81, a buffer inlet pipe 80 is disposed between the buffer chamber 56 and the buffer preparation chamber 81, an eighth driven shaft 83 extending downward to penetrate through the buffer pulley chamber 24 is connected in a rotationally engaged manner to the bottom wall of the buffer preparation chamber 81, a sixth pulley 23 fixedly connected to the eighth driven shaft 83 is disposed in the buffer pulley chamber 24, a second transmission belt 74 is connected in a rotationally engaged manner between the sixth pulley 23, the fifth pulley 37 and the fourth pulley 75, an upper blocking plate 82 having an upper end surface attached to the top wall of the buffer preparation chamber 81 is fixedly connected to the eighth driven shaft 83, and a lower blocking plate 21 fixedly connected with the eighth driven shaft 83 and attached to the bottom wall of the buffer solution preparation cavity 81 at the lower end face is arranged at the lower side of the upper blocking plate 82.
In addition, in one embodiment, the stirring mechanism includes a stirring chamber 25, the stirring chamber 25 is located at the lower side of the buffer pulley chamber 24, a stirring pulley chamber 29 is provided at the lower side of the stirring chamber 25, a ninth driven shaft 30 extending downward to penetrate through the stirring pulley chamber 29 is provided in the bottom wall of the stirring chamber 25 in a rotationally-matched manner, a plurality of stirring rods 28 fixedly connected with the ninth driven shaft 30 are symmetrically provided in the stirring chamber 25, a seventh pulley 31 fixedly connected with the ninth driven shaft 30 is provided in the stirring pulley chamber 29, a third transmission belt 32 is connected between the seventh pulley 31 and the third pulley 39 in a power-matched manner, a lower blocking plate 21 is provided in communication between the stirring chamber 25 and the buffer preparation chamber 81, a color developing liquid outlet pipe 33 is provided in communication between the stirring chamber 25 and the dripping chamber 57, a liquid inlet pipe 65 for a liquid to be tested is provided in communication between the stirring chamber 25 and the grinding chamber 54, a liquid outlet pipe 26 to be detected communicated with the outside is arranged on the right side of the stirring cavity 25, and a rubber plug 27 is arranged in the liquid outlet pipe 26 to be detected in a sliding fit mode.
In the initial state, the cover plate 58 is in a closed state, the rubber head 19 is internally provided with a color developing agent, the buffer liquid cavity 56 is internally provided with a buffer agent, the key compression spring 47 is in a relaxed state, the pull rope 78 is in a relaxed state, the key 48 partially protrudes out of the outside, the key push block compression spring 50 is in a compressed state, the electromagnet 67 is in a closed state, the spline shaft tension spring 71 and the press plate tension spring 73 are in a relaxed state, the upper friction wheel 66 is not in contact with the lower friction wheel 79, the spiral spring 77 is in a relaxed state, the push block tension spring 16 is in a relaxed state, the cam push block 18 is completely positioned in the cam cavity 17, the opening of the upper blocking plate 82 is aligned with the buffer liquid inlet pipe 80, the position of the lower blocking plate 21 is opposite to that of the upper blocking plate 82, and.
Mechanical action sequence of the whole device:
1: placing the fruits and vegetables to be detected into the grinding chamber 54, starting the motor 93 to drive the driving shaft 59 to rotate, thereby driving the first belt wheel 94, the worm wheel 10 and the left grinding wheel 60 to rotate, driving the first driven shaft 61 by the left grinding wheel 60 to rotate, driving the right grinding wheel 62 to rotate, grinding the fruits and vegetables to be detected by the left grinding wheel 60 and the first driven shaft 61, feeding the juice into the stirring chamber 25 through the liquid inlet pipe 65 to be detected, driving the second belt wheel 44 to rotate by the first belt wheel 45 by the first belt wheel 94, thereby driving the third driven shaft 43, driving the first bevel gear 42 to rotate, thereby driving the second bevel gear 38, the fourth driven shaft 40, and the third belt wheel 39 to rotate, driving the seventh belt wheel 31 to rotate by the third belt wheel 32, thereby driving the ninth driven shaft 30 and the stirring rod 28 to rotate, thereby performing a stirring function, driving the worm 13 by the worm wheel 10, and driving the second driven shaft 12 to rotate, thereby driving the spline shaft 72 and the upper friction wheel 66 to rotate.
2: when the fruits and vegetables to be detected are completely crushed, the button 48 is pressed, the button 48 overcomes the elastic force of the button compression spring 47 and moves rightwards under the action of pushing force, until the button push block cavity 49 corresponds to the button push block groove 52, the button push block 51 moves upwards under the action of the pushing force of the button push block compression spring 50 and enters the button push block groove 52, the top of the button push block contacts with the inductor 53, the electromagnet 67 is started, the pressing plate 69 overcomes the pulling force of the pressing plate extension spring 73 and moves downwards under the action of the repulsive force between the electromagnet 67 and the magnet 68, so as to push the upper friction wheel 66, the spline shaft 72 moves downwards under the action of the pulling force of the spline shaft extension spring 71, so as to enable the upper friction wheel 66 to contact with the lower friction wheel 79, so as to enable the upper friction wheel 66 to rotate and drive the lower friction wheel 79 to rotate, thereby driving the fifth driven shaft 91, the turntable 88 and the wire, thereby driving the sixth driven shaft 90 and the fourth pulley 75 to rotate, the fourth pulley 75 drives the fifth pulley 37 through the second transmission belt 74, the sixth pulley 23 rotates, the fifth pulley 37 drives the seventh driven shaft 36, the cam 15 rotates, thereby pushing the cam push block 18 to move rightwards against the pulling force of the push block extension spring 16 to squeeze the rubber head 19, thereby causing the color developing agent in the rubber head 19 to drop into the stirring chamber 25 through the color developing liquid outlet pipe 33, the sixth pulley 23 rotates to drive the eighth driven shaft 83 to rotate, thereby driving the lower barrier plate 21, the upper barrier plate 82 to rotate, the lower barrier plate 21 no longer shields the buffer liquid outlet pipe 22, the buffer in the buffer liquid preparation chamber 81 enters the stirring chamber 25 through the buffer liquid outlet pipe 22, at this time, the buffer liquid inlet pipe 80 is in a state shielded by the upper barrier plate 82, the pulley 76 rotates to drive the pull rope 78 to wind on the pulley 76, when the wire wheel 76 rotates for a circle, the pull rope 78 is tightened, the pulling force of the continuous rotation of the wire wheel 76 drives the key push block 51 to overcome the pushing force of the key push block compression spring 50 to move downwards to leave the key push block 51, the key 48 moves leftwards to return to the initial position under the action of the pushing force of the key compression spring 47, the inductor 53 is not contacted any more, the electromagnet 67 is closed, the pressing plate 69, the spline shaft 72 and the upper friction wheel 66 return to the initial position under the action of the pulling force of the spline shaft extension spring 71 and the pressing plate extension spring 73, the transmission is disconnected, the fifth driven shaft 91 rotates reversely under the action of the elastic force of the spiral spring 77 to drive the wire wheel 76 to rotate reversely, the pull rope 78 returns to the initial state, the rubber plug 27 is opened, and the liquid to be.
3: after the collection is completed, the water pump 64 is turned on, and the clean water in the water storage cavity 55 enters the grinding cavity 54 through the water inlet pipe 63, then enters the stirring cavity 25 through the liquid inlet pipe 65 to be tested, and finally flows to the outside from the liquid outlet pipe 26 to be tested, so that the influence of the residues in the grinding cavity 54 and the stirring cavity 25 on the next test is prevented.
The invention has the beneficial effects that: the fruit and vegetable juice grinding device is simple in structure and convenient to operate, the fruit and vegetable to be detected can be automatically ground into juice after being added into the grinding cavity, the color developing agent and the buffer solution are automatically added and stirred after a button is pressed, meanwhile, the color developing agent can be changed into other small-dose reagents according to needs, the buffer solution can be changed into other large-dose solutions according to needs, the device is provided with a cleaning mechanism, and the fruit and vegetable juice grinding device is convenient to clean after detection is finished. .
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a pesticide residue detects preprocessing device, includes the main tank body, its characterized in that: a grinding cavity with an upward opening is arranged in the main box body, a worm cavity is communicated with the front side of the grinding cavity, a motor is fixed in the front end wall of the worm cavity, a driving shaft extending backwards into the grinding cavity is fixed on the rear end wall of the motor, a left grinding wheel fixedly connected with the driving shaft is arranged in the grinding cavity, a first driven shaft is arranged on the rear end face of the grinding cavity in a rotating fit manner, a right grinding wheel fixedly connected with the first driven shaft is arranged in the grinding cavity, the right grinding wheel is meshed with the left grinding wheel, a water storage cavity with an upward opening is arranged on the right side of the grinding cavity, a water pump is fixedly arranged between the water storage cavity and the grinding cavity, a worm wheel penetrating through the water pump is further communicated between the water storage cavity and the grinding cavity, a worm cavity fixedly connected with the driving shaft is arranged in the worm cavity, and a first belt wheel fixedly connected with the driving shaft is arranged on the front side of the, the stirring mechanism is arranged on the lower side of the first belt wheel, a second driven shaft is arranged on the upper wall of the worm cavity in a rotating fit mode, a worm is fixedly connected onto the second driven shaft and meshed with the worm wheel, the clutch transmission mechanism is arranged on the lower side of the worm, a key cavity with a leftward opening is arranged on the left end face of the main box body, a medicament dripping mechanism is arranged on the right side of the worm cavity, a buffer feeding mechanism is arranged on the right side of the medicament dripping mechanism, and a stirring mechanism is arranged on the lower side of the buffer feeding mechanism.
2. The pretreatment device for pesticide residue detection according to claim 1, characterized in that: stirring drive mechanism includes the bevel gear chamber, the bevel gear chamber is located worm chamber downside, bevel gear chamber back wall normal running fit is equipped with the third driven shaft, fixedly connected with second band pulley on the third driven shaft, with power fit is connected with first driving belt between the first band pulley, second band pulley front side be equipped with third driven shaft fixed connection's first bevel gear, bevel gear chamber bottom normal running fit is equipped with the fourth driven shaft, fixedly connected with on the fourth driven shaft with first bevel gear meshed's second bevel gear, second bevel gear downside be equipped with fourth driven shaft fixed connection's third band pulley.
3. The pretreatment device for pesticide residue detection according to claim 2, characterized in that: the clutch transmission mechanism comprises a clutch cavity, the clutch cavity is positioned on the lower side of the worm cavity, the second driven shaft extends downwards into the clutch cavity, a spline cavity with a downward opening is arranged in the bottom end of the second driven shaft, a spline shaft is connected in the spline cavity in a spline fit manner, a spline shaft extension spring is fixedly connected between the top end face of the spline shaft and the top wall of the spline cavity, a pressing plate is connected on the spline shaft in a rotating fit manner, a magnet is annularly fixed on the upper end face of the pressing plate, an electromagnet fixedly connected with the left side wall of the clutch cavity is arranged on the upper side of the pressing plate, the electromagnet is repelled by magnetism when being started, an upper friction wheel fixedly connected with the spline shaft is arranged on the lower side of the pressing plate, a pressing plate extension spring is fixedly connected between the upper end face of the pressing plate and the upper wall of the, the top end of the fifth driven shaft is fixedly connected with a lower friction wheel, the lower side of the lower friction wheel is arranged on a rotary disc fixedly connected with the fifth driven shaft, the lower side of the rotary disc is provided with a wire wheel fixedly connected with the fifth driven shaft, the lower side of the wire wheel is provided with a spiral spring, one end of the spiral spring is fixedly connected with the fifth driven shaft, the other end of the spiral spring is fixedly connected with the bottom wall of the clutch cavity, ratchet cavities with outward openings are symmetrically arranged in the rotary disc, the lower wall of the ratchet cavities is rotationally and cooperatively connected with a ratchet fixing shaft, ratchets are fixedly connected on the ratchet fixing shaft, the right side of the fifth driven shaft is provided with a sixth driven shaft rotationally and cooperatively connected with the bottom wall of the clutch cavity, the sixth driven shaft is fixedly connected with a transmission gear, the outer side of the rotary disc is provided with an inner, and a fourth belt wheel fixedly connected with the sixth driven shaft is arranged on the upper side of the transmission gear.
4. The pretreatment device for pesticide residue detection according to claim 3, characterized in that: the utility model discloses a line wheel electric motor, including button chamber, line wheel, button intracavity sliding fit is connected with the button, button right-hand member face with fixedly connected with button compression spring between button chamber right-hand member wall, be equipped with the ascending button ejector pad chamber of opening in the button, button ejector pad intracavity sliding connection is equipped with the button ejector pad, button ejector pad bottom surface with fixed connection is equipped with button ejector pad compression spring between the button ejector pad chamber diapire, button ejector pad bottom surface still fixedly connected with other end with line wheel fixed connection's stay cord, button chamber upper wall in-connection is equipped with button ejector pad groove, fixedly connected with inductor on the button ejector pad groove roof, the inductor is to control.
5. The pretreatment device for pesticide residue detection according to claim 4, characterized in that: the medicament dripping mechanism comprises a dripping pipe cavity which is positioned at the right side of the clutch cavity and is opened upwards, a cam cavity is communicated with the left side of the dropper cavity, a color development liquid belt wheel cavity is arranged at the lower side of the cam cavity, a seventh driven shaft which extends downwards to penetrate through the color development liquid pulley cavity is connected in a rotationally matched manner in the bottom wall of the cam cavity, a cam fixedly connected with the seventh driven shaft is arranged in the cam cavity, a fifth belt wheel fixedly connected with the seventh driven shaft is arranged in the cam, a cam push block is arranged in the cam cavity in a sliding fit manner, the left end surface of the cam push block is abutted against the cam, a push block extension spring is fixedly connected between the left end surface of the cam push block and the left wall of the cam cavity, the drip chamber is characterized in that rubber blocks are symmetrically and fixedly connected to the left wall and the right wall of the drip chamber, a sharp-nose glass tube is arranged between the rubber blocks in a sliding connection mode, and a rubber head is fixedly connected to the top end of the sharp-nose glass tube.
6. The pretreatment device for pesticide residue detection according to claim 5, characterized in that: the buffer feeding mechanism comprises a buffer liquid cavity which is positioned at the right side of the dripping pipe cavity and has an upward opening, a buffer solution preparation cavity is arranged at the lower side of the buffer solution cavity, a buffer solution belt wheel cavity is arranged at the lower side of the buffer solution preparation cavity, a buffer solution inlet pipe is communicated and arranged between the buffer solution cavity and the buffer solution preparation cavity, an eighth driven shaft which extends downwards to penetrate through the buffer solution belt wheel cavity is connected in the bottom wall of the buffer solution preparation cavity in a rotating and matching manner, a sixth belt wheel fixedly connected with the eighth driven shaft is arranged in the buffer belt wheel cavity, a second transmission belt is connected among the sixth belt wheel, the fifth belt wheel and the fourth belt wheel in a power fit manner, an upper blocking plate with the upper end surface attached to the top wall of the buffer solution preparation cavity is fixedly connected to the eighth driven shaft, and a lower stop plate fixedly connected with the eighth driven shaft and attached to the bottom wall of the buffer solution preparation cavity at the lower end face is arranged at the lower side of the upper stop plate.
7. The pretreatment device for pesticide residue detection according to claim 6, characterized in that: the stirring mechanism comprises a stirring cavity, the stirring cavity is positioned at the lower side of the buffer solution belt wheel cavity, the lower side of the stirring cavity is provided with a stirring belt wheel cavity, the bottom wall of the stirring cavity is provided with a ninth driven shaft which extends downwards to penetrate through the stirring belt wheel cavity in a rotating fit manner, a plurality of stirring rods fixedly connected with the ninth driven shaft are symmetrically arranged in the stirring cavity, a seventh belt wheel fixedly connected with the ninth driven shaft is arranged in the stirring belt wheel cavity, a third driving belt is connected between the seventh belt wheel and the third belt wheel in a power fit manner, a lower barrier plate is communicated between the stirring cavity and the buffer solution preparation cavity, a color developing solution outlet pipe is communicated between the stirring cavity and the dripping pipe cavity, a liquid inlet pipe to be detected is communicated between the stirring cavity and the crushing cavity, and a liquid outlet pipe to be detected which is communicated with the outside is arranged at the right side of the stirring cavity, and a rubber plug is arranged in the liquid outlet pipe to be detected in a sliding fit manner.
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| CN111068889B (en) * | 2020-02-04 | 2020-10-27 | 安徽贺林中药饮片科技有限公司 | Traditional chinese medicine bruisher |
| CN112067667B (en) * | 2020-09-22 | 2021-03-12 | 广东威尔科技推广有限公司 | Power electronic component measuring device |
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| CN101672736A (en) * | 2009-09-27 | 2010-03-17 | 深圳市农产品股份有限公司 | Sample pre-treatment device for analysis of pesticide residues in fruits and vegetables and analysis of pesticide residues in fruits and vegetables |
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Effective date of registration: 20200519 Address after: No. 292, Shanghai Road, Pingdu Economic Development Zone, Qingdao City, Shandong Province Applicant after: Qingdao xinchenpeng Food Co., Ltd Address before: Liu Shi Zhen Nan Shan Qian Cun, Leqing City, Wenzhou City, Zhejiang Province Applicant before: Wenzhou Jiyun Intelligent Technology Co., Ltd |
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