Intelligent crop pesticide residue detection device

Abstract

The utility model relates to the technical field of pesticide residue detection, in particular to an intelligent crop pesticide residue detection device which comprises a chromatographic instrument body, a digital display controller is fixedly installed on the right side of the front surface of the chromatographic instrument body, and a test tube groove is formed in the left side of the top of the chromatographic instrument body. A movable clamping mechanism is mounted at the top of the chromatographic instrument body and located at the top of the test tube groove, and a movable stirring mechanism is mounted at the top of the chromatographic instrument body. By arranging the mounting sleeve, the stirring piece and the magnetic strip, the device has the advantage of convenience in disassembly and assembly, and the specification of the stirring piece can be flexibly selected according to the specification of a test tube assembled in the test tube groove so as to be matched with the magnetic strip for quick magnetic attraction installation; by arranging the blocking disc, the stirring piece and the stepping motor, the advantage of rotary shielding is achieved, the empty groove and the stirring piece can be distributed in a staggered mode, and then the situation that a liquid sample attached to the stirring piece freely drips and pollutes the interior of the sunken test tube groove is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide residue detection, in particular to an intelligent crop pesticide residue detection device. Background Art

[0002] Crops are various plants cultivated in agriculture. Chromatographs are devices used for chromatographic separation and analysis. They can provide high-resolution, high-sensitivity, and high-selectivity analysis results and are widely used in pesticide residue detection.

[0003] After searching, the patent number is CN216900471U, and the name is a utility model of a pesticide residue detection device, which includes a base. Through research and analysis, it is found that although it is suitable for various types of test tubes and the setting of the stirring mechanism facilitates the simultaneous stirring of samples in multiple groups of test tubes, it still has the following disadvantages to a certain extent.

[0004] For example, the device can be well adapted to test tubes of various specifications, but its stirring rod is fixedly installed on the transmission belt and cannot be conveniently disassembled. This method will cause the smaller stirring rod to be unable to adapt well to the test tubes of larger specifications, and a long time of stirring is required to homogenize the sample in the test tube. The larger stirring rod cannot be inserted into the smaller test tube, and after the stirring is completed, as the stirring rod is lifted, it is easy to cause the attached liquid to drip. When the non-detachable stirring rod is cleaned, it is very easy to cause the cleaning liquid to drip into the tank below, polluting the processing environment. In order to solve the above technical problems, we have designed an intelligent crop pesticide residue detection device. Utility Model Content

[0005] The purpose of the utility model is to provide an intelligent agricultural crop residue detection device, which has the advantages of convenient replacement and anti-drip protection, and solves the problem that the detection device cannot be conveniently disassembled and processed. After stirring is completed, the stirring rod is lifted, which easily causes the attached liquid to drip, and the non-detachable stirring rod is easily caused to drip into the lower tank when cleaning, thereby polluting the processing environment.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent agricultural crop residue detection device, comprising a chromatograph body, a digital display controller fixedly mounted on the right side of the front surface of the chromatograph body, a test tube slot provided on the left side of the top of the chromatograph body, a movable clamping mechanism installed on the top of the chromatograph body and located on the top of the test tube slot, a mobile stirring mechanism installed on the top of the chromatograph body, the mobile stirring mechanism comprising an electric telescopic rod, a vertical rod and a stepping motor, the bottom of the electric telescopic rod being bolted to the top of the chromatograph body, the bottom of the vertical rod being fixedly connected to the top of the chromatograph body, and the top of the chromatograph body being provided with a The mounting slot is connected with the inner wall bolt of the mounting slot, the output end of the electric telescopic rod is fixedly connected with the displacement frame, the left bolt of the displacement frame is installed with a reduction motor, the bottom bolt of the reduction motor is provided with a fixing frame, the output end of the reduction motor is located at the bottom of the fixing frame and is fixedly connected with a driving gear, a mounting sleeve is movably installed on the outside of the bottom of the fixing frame, the top fixed sleeve on the surface of the mounting sleeve is provided with a driven gear, the inner cavity of the mounting sleeve is provided with a stirring piece, the top of the surface of the stirring piece and the inner wall of the mounting sleeve are both inlaid with magnetic strips, the output end of the stepper motor is fixedly connected with a blocking disk, and the outer ring of the blocking disk is provided with an empty slot.

[0007] Preferably, the movable clamping mechanism includes two fixed blocks, the bottom of the fixed block is fixedly connected to the connection point of the chromatograph body, and a guide rod is slidably installed through the surface of the fixed block.

[0008] Preferably, one end of the guide rod is fixedly connected to a clamping arc block, a threaded hole is provided on the surface of the guide rod, and a hexagonal bolt is provided on the threaded hole on the surface of the threaded hole.

[0009] Preferably, a spring is fixedly connected to one side of the hexagonal bolt, and a pressure sensor is fixedly embedded on the surface of the fixing block.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The utility model has the advantage of convenient assembly and disassembly by providing the installation sleeve, stirring piece and magnetic strip. It can flexibly select the specifications of the stirring piece according to the test tube specifications in the test tube slot and cooperate with the magnetic strip for magnetic attraction and rapid installation, which is more in line with actual use needs.

[0012] 2. The utility model has the advantage of rotational shielding by arranging a barrier plate, a stirring element and a stepping motor. Under the drive of the stepping motor, the barrier plate can be rotated to a certain angle, so that the empty slot and the stirring element are staggered, thereby preventing the liquid sample attached to the stirring element from dripping randomly and contaminating the recessed test tube slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram of the utility model when the structure is separated;

[0015] Figure 3 This is a three-dimensional schematic diagram of the movable clamping mechanism of the utility model when it is separated;

[0016] Figure 4 This is a three-dimensional schematic diagram of the mobile stirring mechanism of the utility model when it is separated;

[0017] Figure 5 This is a bottom-up stereoscopic view of the mobile stirring mechanism of the utility model when it is separated.

[0018] In the figure: 1. Chromatograph body; 2. Mobile stirring mechanism; 201. Reducer motor; 202. Fixed frame; 203. Mounting sleeve; 204. Driven gear; 205. Driving gear; 206. Blocking plate; 207. Stirring element; 208. Electric telescopic rod; 209. Vertical rod; 210. Displacement frame; 211. Empty slot; 212. Magnetic strip; 213. Stepping motor; 3. Movable clamping mechanism; 301. Screw thread; 302. Guide rod; 303. Spring; 304. Hexagonal bolt; 305. Clamping arc block; 306. Pressure sensor; 307. Fixed block; 4. Digital display controller; 5. Test tube slot; 6. Mounting slot. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 5, an intelligent crop pesticide residue detection device, including a chromatograph body 1, a digital display controller 4 is fixedly installed on the right side of the front surface of the chromatograph body 1, a test tube slot 5 is opened on the left side of the top of the chromatograph body 1, a movable clamping mechanism 3 is installed on the top of the chromatograph body 1 and on the top of the test tube slot 5, a mobile stirring mechanism 2 is installed on the top of the chromatograph body 1, and the mobile stirring mechanism 2 includes an electric telescopic rod 208, a vertical rod 209 and a stepping motor 213, the bottom of the electric telescopic rod 208 is bolted to the top of the chromatograph body 1, the bottom of the vertical rod 209 is fixedly connected to the top of the chromatograph body 1, a mounting slot 6 is opened on the top of the chromatograph body 1, and the bottom of the stepping motor 213 is bolted to the inner wall of the mounting slot 6, The output end of the electric telescopic rod 208 is fixedly connected to the displacement frame 210, the left bolt of the displacement frame 210 is installed with a reduction motor 201, the bottom bolt of the reduction motor 201 is fixed with a fixing frame 202, the output end of the reduction motor 201 and located at the bottom of the fixing frame 202 is fixedly connected with a driving gear 205, the outer side of the bottom of the fixing frame 202 is movably installed with a mounting sleeve 203, the top fixed sleeve of the surface of the mounting sleeve 203 is provided with a driven gear 204, the inner cavity of the mounting sleeve 203 is installed with a stirring member 207, the top of the surface of the stirring member 207 and the inner wall of the mounting sleeve 203 are both inlaid with magnetic strips 212, the output end of the stepping motor 213 is fixedly connected to the blocking disk 206, and the outer ring of the blocking disk 206 is provided with an empty slot 211;

[0020] See also Figure 1 、 Figure 2 and Figure 3 The movable clamping mechanism 3 includes two fixed blocks 307, the bottom of the fixed block 307 is fixedly connected to the connection of the chromatograph body 1, and the surface of the fixed block 307 is slidably mounted with a guide rod 302;

[0021] See also Figure 1 、 Figure 2 and Figure 3 One end of the guide rod 302 is fixedly connected to a clamping arc block 305, a threaded thread 301 is provided on the surface of the guide rod 302, and a hexagonal bolt 304 is provided on the surface of the threaded thread 301;

[0022] See also Figure 1 、 Figure 2 and Figure 3 , a spring 303 is fixedly connected to one side of the hexagonal bolt 304, and a pressure sensor 306 is fixedly embedded on the surface of the fixing block 307;

[0023] One end of the spring 303 away from the hexagonal bolt 304 contacts the surface of the pressure sensor 306;

[0024] Through holes are formed at the four corners of the top of the displacement frame 210. The vertical rods 209 pass through the through holes and are in sliding contact with the through holes. The vertical rods 209 cooperate with the through holes to guide the displacement of the displacement frame 210 and ensure the stability of the displacement frame 210 when sliding up and down.

[0025] The number of driven gears 204 is the same as the number of test tube slots 5, and the plurality of driven gears 204 are all meshed with the driving gear 205;

[0026] The barrier disc 206 includes an auxiliary substrate and a water-absorbing sponge plate. The center of the bottom of the auxiliary substrate is fixedly connected to the output end of the stepping motor 213. The top of the auxiliary substrate is bonded to the bottom of the water-absorbing sponge plate. The water-absorbing sponge plate can absorb the dripping sample solution and can be easily detached and installed.

[0027] The top of the stirring member 207 is rectangular, and a rectangular groove for use with the stirring member 207 is provided at the center of the bottom of the mounting sleeve 203.

[0028] By providing the fixing frame 202, it is possible to simultaneously meet the installation requirements of multiple mounting sleeves 203 and enable the mounting sleeves 203 to rotate. By providing the driven gear 204 and the driving gear 205, a meshing transmission effect can be achieved. Under the drive of the reduction motor 201, the driving gear 205 can drive multiple driven gears 204 to rotate simultaneously.

[0029] By providing the blocking plate 206 and the empty slot 211, when the empty slot 211 overlaps with the test tube slot 5, the space requirement for the test tube and the stirring member 207 to move downward can be met. When the empty slot 211 is misaligned with the test tube slot 5, the blocking plate 206 can block the dripping liquid.

[0030] By providing the stirring member 207, it can penetrate into the test tube when it moves downward, and then evenly mix the sample in the test tube in a rotating state. By providing the displacement frame 210, the fixed installation requirements of the reduction motor 201 can be met. By providing the magnetic strip 212, it can play a role of magnetic attraction installation when the stirring member 207 and the mounting sleeve 203 are plugged in. In addition, since the top of the stirring member 207 is designed to be rectangular, the stirring member 207 can be driven to rotate simultaneously when the mounting sleeve 203 rotates.

[0031] By providing the thread 301 and the hexagonal bolt 304, a threaded transmission function can be achieved. When the hexagonal bolt 304 is driven to rotate, the hexagonal bolt 304 can be synchronously linearly displaced on the guide rod 302. By providing the spring 303, an elastic reset force can be provided for the clamping arc block 305.

[0032] By providing a pressure sensor 306, the feedback elastic force of the spring 303 can be detected. By providing a guide rod 302 and a fixed block 307, the displacement of the clamping arc block 305 can be guided to ensure the displacement stability of the clamping arc block 305. By providing a test tube slot 5 and a mounting slot 6, the installation space requirements of the test tube and the stepping motor 213 can be met respectively.

[0033] By setting up a digital display controller 4, the reduction motor 201, the stepping motor 213 and the electric telescopic rod 208 can be started and stopped, and the pressure signal detected by the pressure sensor 306 can be displayed;

[0034] In actual application, in order to ensure the overall stability of the structure, a number of reinforcement rods are installed between the fixed frame 202 and the displacement frame 210, and the reinforcement rods fixedly connect the fixed frame 202 and the displacement frame 210.

[0035] When in use, all components are in the initial installation state, the electric telescopic rod 208 is in the extended state, the reduction motor 201 is located at a high position on the vertical rod 209, first the test tube is moved down and placed in the test tube slot 5, and the test tube is located between two adjacent clamping arc blocks 305, the clamping arc blocks 305 automatically move outward, and the stability of the clamping arc blocks 305 is ensured under the guidance of the guide rod 302, the spring 303 is compressed, and provides clamping force for the hexagonal bolt 304 and the clamping arc block 305, so as to clamp the test tube stably, and at the same time the pressure sensor 306 can generate elasticity on the spring 303 The supporting force is detected and displayed by the digital display controller 4. If the professional determines that the clamping force is too large or too small, the hexagonal bolt 304 can be driven to rotate. With the cooperation of the thread 301, the position of the hexagonal bolt 304 on the guide rod 302 is changed. When the distance between the hexagonal bolt 304 and the fixed block 307 is reduced, the feedback force of the spring 303 is increased, and the clamping force is increased. Conversely, when the distance between the hexagonal bolt 304 and the fixed block 307 is increased, the clamping force is reduced. After the test tube is clamped, the stirring piece 207 of the appropriate size is selected and the stirring piece 207 is placed. 7 is moved up and placed into the installation sleeve 203. The magnetic strip 212 on the stirring member 207 is magnetically contacted with the magnetic strip 212 in the installation sleeve 203 to achieve quick installation. Then the electric telescopic rod 208 is controlled to retract. Under the guidance of the vertical rod 209, the displacement frame 210 drives the reduction motor 201 and the fixed frame 202 to move down. The driven gear 204, the installation sleeve 203, the driving gear 205 and the stirring member 207 move down synchronously. The stirring member 207 passes through the empty slot 211 and enters the test tube. At this time, the reduction motor 201 is controlled to work. When the driven gear 204 and the driving gear 205 are connected, the stirring member 207 enters the test tube. 05, multiple stirring members 207 rotate simultaneously to stir the sample in the test tube; after the stirring and homogenization is completed, the electric telescopic rod 208 is controlled to extend to lift and reset the stirring member 207, and then the stepping motor 213 is controlled to work, so that the blocking disk 206 rotates, and the empty slot 211 and the stirring member 207 are staggered. At this time, a small amount of liquid sample remaining on the stirring member 207 drips onto the blocking disk 206 and is absorbed; when the stirring member 207 is cleaned, the stirring member 207 can also be disassembled and cleaned separately to ensure the overall cleanliness of the chromatograph body 1.

[0036] In summary: the intelligent crop pesticide residue detection device, by setting up a movable stirring mechanism 2, a movable clamping mechanism 3 and a test tube slot 5, solves the problem that the detection device cannot be conveniently disassembled. After the stirring is completed, as the stirring rod is lifted, it is easy to cause the attached liquid to drip. When the non-detachable stirring rod is cleaned, it is very easy to cause the cleaning liquid to drip into the slot below, polluting the processing environment.

Claims

1. An intelligent crop pesticide residue detection device, comprising a chromatograph body (1), characterized in that: A digital display controller (4) is fixedly installed on the right side of the front surface of the chromatograph body (1), a test tube slot (5) is opened on the left side of the top of the chromatograph body (1), a movable clamping mechanism (3) is installed on the top of the chromatograph body (1) and located on the top of the test tube slot (5), and a mobile stirring mechanism (2) is installed on the top of the chromatograph body (1), and the mobile stirring mechanism (2) includes an electric telescopic rod (208), a vertical rod (209) and a stepping motor (213), the bottom of the electric telescopic rod (208) is bolted to the top of the chromatograph body (1), the bottom of the vertical rod (209) is fixedly connected to the top of the chromatograph body (1), a mounting slot (6) is opened on the top of the chromatograph body (1), the bottom of the stepping motor (213) is bolted to the inner wall of the mounting slot (6), and the output of the electric telescopic rod (208) is connected to the inner wall of the mounting slot (6). The end is fixedly connected to a displacement frame (210), the left side bolt of the displacement frame (210) is installed with a reduction motor (201), the bottom bolt of the reduction motor (201) is fixed with a fixing frame (202), the output end of the reduction motor (201) and located at the bottom of the fixing frame (202) is fixedly connected with a driving gear (205), the outer side of the bottom of the fixing frame (202) is movably installed with a mounting sleeve (203), the top fixed sleeve of the surface of the mounting sleeve (203) is provided with a driven gear (204), the inner cavity of the mounting sleeve (203) is installed with a stirring member (207), the top of the surface of the stirring member (207) and the inner wall of the mounting sleeve (203) are both inlaid with magnetic strips (212), the output end of the stepping motor (213) is fixedly connected with a blocking disk (206), and the outer ring of the blocking disk (206) is provided with an empty slot (211).

2. The intelligent crop pesticide residue detection device according to claim 1, characterized in that: The movable clamping mechanism (3) comprises two fixed blocks (307), the bottom of each fixed block (307) is fixedly connected to the connection of the chromatograph body (1), and a guide rod (302) is slidably installed through the surface of each fixed block (307).

3. The intelligent crop pesticide residue detection device according to claim 2, characterized in that: One end of the guide rod (302) is fixedly connected to a clamping arc block (305), a threaded thread (301) is provided on the surface of the guide rod (302), and a hexagonal bolt (304) is threadedly sleeved on the surface of the threaded thread (301).

4. The intelligent crop pesticide residue detection device according to claim 3, characterized in that: A spring (303) is fixedly connected to one side of the hexagonal bolt (304), and a pressure sensor (306) is fixedly embedded on the surface of the fixing block (307).

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