Portable residual pesticide detector

Abstract

The utility model discloses a portable residual pesticide detector which comprises a shell, a discharging groove is formed in the inner wall of the bottom of the shell, a discharging pipe is fixedly installed at the bottom of the discharging groove, the bottom end of the discharging pipe extends out of the shell, a feeding port is formed in the left side of the shell, a feeding door is rotatably installed outside the feeding port, and a discharging port is formed in the right side of the shell. A transparent observation window is formed in the front side of the shell, and a colorimetric card located below the transparent observation window is fixedly installed on the front side of the shell. The device is reasonable in design, a plurality of crushing blades can be used for crushing an added to-be-detected object, so that the contact probability of a detection reagent and a pesticide on fragments of the to-be-detected object is increased, the color change of the fragments of the to-be-detected object is contrasted through a colorimetric card, the detection steps are simplified, the detection efficiency is improved, and after the detection is finished, the detection reagent can be conveniently and quickly crushed. The water pump is controlled to pump clean water to wash the crushing blades and the inner wall of the shell, so that the influence of residues on the detection accuracy of other subsequent to-be-detected objects is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of residual pesticide detection, in particular to a portable residual pesticide detector. Background Technique

[0002] The development of agricultural industrialization makes the production of agricultural products more and more dependent on exogenous substances such as pesticides, antibiotics, and hormones. The consumption of pesticides in agricultural products in China remains high, and the unreasonable use of these substances will inevitably lead to excessive pesticide residues in agricultural products, affecting the food safety of consumers. As a popular beverage among the masses, tea is also sprayed with pesticides during the planting process. When the tea is ripe and purchased, people usually use a residual pesticide detector to detect the tea to ensure that it meets the drinking standards. However, the existing tea residual pesticide detectors cannot quickly and fully mix and react the reagents with the tea during the detection, which will lead to inaccurate detection results and low efficiency.

[0003] After retrieval, a portable tea residual pesticide detector announced in the Chinese patent with the announcement number CN218382701U has the following technical key points: including a protective shell for the residual pesticide detector, a residual pesticide detector body is provided inside the protective shell for the residual pesticide detector. A vibration mixing mechanism is provided on the left side of the bottom inside the residual pesticide detector body. The first motor drives the crankshaft to rotate. When the crankshaft rotates, the sliding rod will move. When the sliding rod moves, the sliding rod will drive the striker to impact the connecting rod in the sliding sleeve. Since the vibration mixing chamber and the base are connected by springs, there is a second spring on the connecting rod.

[0004] The above solution is found to still have at least the following defects in actual operation: after the device crushes and detects the object to be tested, it is inconvenient to clean the crushing mechanism, and the remaining waste residue will affect the accuracy of the detection of other subsequent objects to be tested. For this reason, we propose a portable residual pesticide detector to solve the above problems. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a portable residual pesticide detector, which solves the problem that after crushing and detecting the object to be tested, it is inconvenient to clean the crushing mechanism, and the remaining waste residue will affect the accuracy of the detection of other subsequent objects to be tested.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A portable residual pesticide detector, comprising a housing. A feeding groove is formed on the bottom inner wall of the housing. A feeding pipe is fixedly installed at the bottom of the feeding groove, and the bottom end of the feeding pipe extends outside the housing. A feeding port is formed on the left side of the housing, and a feeding door is rotatably installed outside the feeding port. A transparent observation window is formed on the front side of the housing. A color comparison card is fixedly installed on the front side of the housing and is located below the transparent observation window. A feeding hopper is fixedly installed on the right side of the top of the housing. A crushing mechanism for crushing the object to be detected is provided on the top of the housing, and a cleaning mechanism for flushing the residues is also provided on the top of the housing.

[0009] Preferably, the crushing mechanism includes a fixed seat, a motor, a rotating shaft and a plurality of crushing blades. The fixed seat is fixedly installed on the top of the housing. The motor is fixedly installed on the fixed seat. The rotating shaft is fixedly installed at the output shaft end of the motor, and the bottom end of the rotating shaft extends into the housing. A plurality of crushing blades are fixedly installed on the rotating shaft and are evenly distributed.

[0010] Preferably, the cleaning mechanism includes an annular water tank, a water pump, a suction pipe, an annular water pipe, a water outlet pipe and a plurality of spray heads. The annular water tank is fixedly installed on the top of the housing and is located outside the fixed seat. The water pump is fixedly installed on the top of the housing and is located on the left side of the annular water tank. The suction pipe is fixedly installed at the suction end of the water pump, and the end of the suction pipe away from the water pump extends into the annular water tank. The annular water pipe is fixedly installed on the annular inner wall of the housing. The water outlet pipe is fixedly installed on the top of the annular water pipe, and the end of the water outlet pipe away from the annular water pipe is fixedly connected to the discharge end of the water pump. A plurality of spray heads are fixedly installed on the annular inner wall of the annular water pipe and are evenly distributed.

[0011] Preferably, a water injection port is fixedly installed on the top of the annular water tank, and a rubber plug is threadedly installed in the water injection port.

[0012] Preferably, a blanking electromagnetic valve is fixedly installed on the feeding pipe and is located below the housing, and a waste box is threadedly installed at the bottom end of the feeding pipe.

[0013] Preferably, a protective case is fixedly installed on the top of the housing, and a cover plate is rotatably installed on the top of the protective case.

[0014] Preferably, a support pipe is fixedly installed at the bottom of the housing, and an anti-slip gasket is fixedly installed at the bottom of the support pipe.

[0015] (III) Beneficial effects

[0016] The present utility model provides a portable residual pesticide detector. It has the following beneficial effects:

[0017] (1). This portable residual pesticide detector can use a crushing mechanism composed of a fixed seat, a motor, a rotating shaft, and multiple crushing blades to crush the added test object with the multiple crushing blades, thereby increasing the contact probability between the detection reagent and the pesticide on the fragments of the test object. By comparing the color changes of the fragments of the test object with a color comparison card, the detection steps are simplified and the detection efficiency is improved.

[0018] (2). This portable residual pesticide detector can use a cleaning mechanism composed of an annular water tank, a water pump, a water suction pipe, an annular water pipe, a water outlet pipe, and multiple spray heads. After the detection is completed, it can control the water pump to pump clear water to wash the multiple crushing blades and the inner wall of the housing, avoiding the influence of residues on the accuracy of detecting other subsequent test objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a sectional structural schematic diagram of the front view of the present utility model;

[0021] Figure 3 is a three-dimensional sectional structural schematic diagram of the present utility model.

[0022] In the figure: 1, housing; 2, blanking chute; 3, blanking pipe; 4, feed inlet; 5, feed door; 6, transparent observation window; 7, color comparison card; 8, feed hopper; 9, fixed seat; 10, motor; 11, rotating shaft; 12, crushing blade; 13, annular water tank; 14, water pump; 15, water suction pipe; 16, annular water pipe; 17, water outlet pipe; 18, spray head; 19, rubber plug; 20, blanking solenoid valve; 21, waste box; 22, protective shell; 23, cover plate; 24, support pipe; 25, anti-slip gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Such as Figures 1-3As shown in the figure, the utility model provides a technical solution: a portable residual pesticide detector, which includes a housing 1. A feeding groove 2 is formed in the bottom inner wall of the housing 1. A feeding pipe 3 is fixedly installed at the bottom of the feeding groove 2. The bottom end of the feeding pipe 3 extends outside the housing 1. A feeding solenoid valve 20 is fixedly installed on the feeding pipe 3 and is located below the housing 1. The bottom end of the feeding pipe 3 is threadedly installed with a waste box 21. The waste box 21 can collect the fragments of the object to be detected and the detection reagent washed down, which is convenient for unified treatment and avoids polluting the environment. An inlet 4 is formed on the left side of the housing 1. A feeding door 5 is rotatably installed outside the inlet 4. A transparent observation window 6 is formed on the front side of the housing 1. A color comparison card 7 is fixedly installed on the front side of the housing 1 and is located below the transparent observation window 6. A feeding hopper 8 is fixedly installed on the top right side of the housing 1. It should be noted that the feeding hopper 8 is used to add the detection reagent into the housing 1, and the detection reagent can be cholinesterase, which can react with most types of pesticides. A crushing mechanism for crushing the object to be detected is arranged on the top of the housing 1, and a cleaning mechanism for washing the residues is also arranged on the top of the housing 1.

[0025] In this embodiment, the above-mentioned crushing mechanism includes a fixed seat 9, a motor 10, a rotating shaft 11 and a plurality of crushing blades 12. The fixed seat 9 is fixedly installed on the top of the housing 1. The motor 10 is fixedly installed on the fixed seat 9. The rotating shaft 11 is fixedly installed at the output shaft end of the motor 10. The bottom end of the rotating shaft 11 extends into the housing 1. The plurality of crushing blades 12 are all fixedly installed on the rotating shaft 11 and are evenly distributed.

[0026] In this embodiment, the above-mentioned cleaning mechanism includes an annular water tank 13, a water pump 14, a water suction pipe 15, an annular water pipe 16, a water outlet pipe 17 and a plurality of spray heads 18. The annular water tank 13 is fixedly installed on the top of the housing 1 and is located outside the fixed seat 9. The water pump 14 is fixedly installed on the top of the housing 1 and is located on the left side of the annular water tank 13. The water suction pipe 15 is fixedly installed at the suction end of the water pump 14. The end of the water suction pipe 15 away from the water pump 14 extends into the annular water tank 13. The annular water pipe 16 is fixedly installed on the annular inner wall of the housing 1. The water outlet pipe 17 is fixedly installed on the top of the annular water pipe 16. The end of the water outlet pipe 17 away from the annular water pipe 16 is fixedly connected to the discharge end of the water pump 14. The plurality of spray heads 18 are all fixedly installed on the annular inner wall of the annular water pipe 16 and are evenly distributed. It should be noted that the plurality of spray heads 18 are all inclined, and can wash the plurality of crushing blades 12 and the inner wall of the housing 1 from multiple angles, improving the cleanliness inside the housing 1. A water injection port is fixedly installed on the top of the annular water tank 13. A rubber plug 19 is threadedly installed in the water injection port. The rubber plug 19 can be used to conveniently add clean water into the annular water tank 13.

[0027] In this embodiment, a protective case 22 is fixedly installed at the top of the above-mentioned housing 1. A cover plate 23 is rotatably installed at the top of the protective case 22. A support pipe 24 is fixedly installed at the bottom of the housing 1. An anti-slip gasket 25 is fixedly installed at the bottom of the support pipe 24.

[0028] In this embodiment, a control switch is installed on the housing 1. The motor 10, the water pump 14, the blanking solenoid valve 20 and the control switch are electrically connected to an external power supply line in sequence through wires to form a circuit. The control switch can respectively control the start and stop of the motor 10, the water pump 14 and the blanking solenoid valve 20.

[0029] With the above structure, a portable residual pesticide detector provided by the present utility model can use multiple crushing blades 12 to crush the added object to be detected, thereby increasing the contact probability between the detection reagent and the pesticide on the fragments of the object to be detected. The color change of the fragments of the object to be detected is compared by the colorimetric card 7, simplifying the detection steps and improving the detection efficiency. After the detection is completed, the water pump 14 can be controlled to pump clear water to wash the multiple crushing blades 12 and the inner wall of the housing 1, avoiding the influence of residues on the accuracy of subsequent detection of other objects to be detected. When in specific use, open the feed door 5, put the object to be detected sample into the housing 1, then close the feed door 5, control the motor 10 to run, the motor 10 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the multiple crushing blades 12 to crush the object to be detected, and add an appropriate amount of detection reagent into the housing 1 through the feed hopper 8. Under the crushing and cutting of the multiple crushing blades 12, the object to be detected is decomposed into fragments and rotates under the drive of the multiple crushing blades 12, increasing the contact probability between the pesticide on the fragments of the object to be detected and the detection reagent. The color change of the fragments of the object to be detected is compared by the colorimetric card 7 to determine whether there is pesticide residue on the object to be detected. After the detection is completed, control the water pump 14 to run, the water pump 14 pumps clear water and pressurizes it to be transported into the annular water pipe 16, and the multiple nozzles 18 wash the multiple crushing blades 12 and the inner wall of the housing 1 from multiple angles, effectively improving the cleanliness inside the housing 1 and avoiding the influence of residues on the accuracy of subsequent detection of other objects to be detected. The washed fragments of the object to be detected and the mixed liquid enter the waste box 21 for collection, which is convenient for unified treatment and avoids environmental pollution.

[0030] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope recorded by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A portable residual pesticide detector, characterized in that: It includes a housing (1). A material discharge chute (2) is formed in the inner wall of the bottom of the housing (1). A material discharge pipe (3) is fixedly installed at the bottom of the material discharge chute (2). The bottom end of the material discharge pipe (3) extends outside the housing (1). An inlet (4) is formed on the left side of the housing (1). A feed door (5) is rotatably installed outside the inlet (4). A transparent observation window (6) is formed on the front side of the housing (1). A color comparison card (7) is fixedly installed on the front side of the housing (1) and is located below the transparent observation window (6). A feed hopper (8) is fixedly installed on the right side of the top of the housing (1). A crushing mechanism for crushing the object to be inspected is provided on the top of the housing (1). A cleaning mechanism for flushing residues is also provided on the top of the housing (1).

2. The portable residual pesticide detector according to claim 1, wherein: The crushing mechanism includes a fixed seat (9), a motor (10), a rotating shaft (11) and a plurality of crushing blades (12). The fixed seat (9) is fixedly installed on the top of the housing (1). The motor (10) is fixedly installed on the fixed seat (9). The rotating shaft (11) is fixedly installed at the output shaft end of the motor (10). The bottom end of the rotating shaft (11) extends into the housing (1). A plurality of the crushing blades (12) are fixedly installed on the rotating shaft (11) and are evenly distributed.

3. The portable residual pesticide detector according to claim 2, characterized in that: The cleaning mechanism includes an annular water tank (13), a water pump (14), a suction pipe (15), an annular water pipe (16), a water outlet pipe (17) and a plurality of spray nozzles (18). The annular water tank (13) is fixedly installed on the top of the housing (1) and is located outside the fixed seat (9). The water pump (14) is fixedly installed on the top of the housing (1) and is located on the left side of the annular water tank (13). The suction pipe (15) is fixedly installed at the suction end of the water pump (14). The end of the suction pipe (15) away from the water pump (14) extends into the annular water tank (13). The annular water pipe (16) is fixedly installed on the annular inner wall of the housing (1). The water outlet pipe (17) is fixedly installed on the top of the annular water pipe (16). The end of the water outlet pipe (17) away from the annular water pipe (16) is fixedly connected to the discharge end of the water pump (14). A plurality of the spray nozzles (18) are fixedly installed on the annular inner wall of the annular water pipe (16) and are evenly distributed.

4. The portable residual pesticide detector according to claim 3, wherein: A water injection port is fixedly installed on the top of the annular water tank (13). A rubber plug (19) is threadedly installed in the water injection port.

5. A portable residual pesticide detector according to claim 1, characterized in that: A material discharge solenoid valve (20) is fixedly installed on the material discharge pipe (3) and is located below the housing (1). The bottom end of the material discharge pipe (3) is threadedly installed with a waste box (21).

6. A portable residual pesticide detector according to claim 1, characterized in that: A protective case (22) is fixedly installed on the top of the housing (1). A cover plate (23) is rotatably installed on the top of the protective case (22).

7. A portable residual pesticide detector according to claim 1, characterized in that: A support pipe (24) is fixedly installed at the bottom of the housing (1). An anti-slip gasket (25) is fixedly installed at the bottom of the support pipe (24).

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