A rapid detection device for pesticide residues

Abstract

The application discloses a kind of pesticide residue rapid detection device, comprising: body and rapid detection component, the body is rectangular body shape structure, the rapid detection component is arranged in one side of body, the rapid detection component includes plug-in slot, the number of plug-in slot is three and symmetrically opened in one side of body, the inner wall of plug-in slot is inserted with plug-in frame, the plug-in frame can be inserted in the inner wall of plug-in slot under the action of rapid detection component, in turn, pesticide residue can be detected by cooperating detection test paper, while detection test paper can be conveniently and quickly replaced under the cooperation of cover plate and plug-in frame, and the solution after sampling can be detected on detection test paper, the whole process is simple and fast, without multiple equipment cooperation, so that the detection step is reduced, and then the detection effect is improved.

Description

Technical Field

[0001] This invention relates to the field of pesticide detection device technology, specifically to a rapid pesticide residue detection device. Background Technology

[0002] With the rapid development of agricultural industrialization, pesticides play a vital role in pest and disease control and ensuring crop yields. However, the irrational use of pesticides can easily lead to excessive pesticide residues in agricultural products, directly threatening human health and ecological safety. Therefore, pesticide residue testing before agricultural products enter the market and during distribution has become a crucial link in ensuring food safety, placing higher demands on the speed, convenience, and practicality of testing devices.

[0003] Currently, pesticide residue detection technologies mainly include chromatography, mass spectrometry, and rapid detection methods. While chromatography and mass spectrometry offer high detection accuracy, their equipment is bulky, complex to operate, costly, and time-consuming, making them unsuitable for rapid on-site testing in fields, farmers' markets, and other similar scenarios. Among rapid detection methods, the colorimetric test strip method is widely used for rapid on-site screening due to its simple operation, low cost, and fast detection speed. Its core principle is to utilize the specific colorimetric reaction between the test strip and pesticide residues, observing the color change to determine whether pesticide residue levels exceed the limits.

[0004] However, in existing rapid pesticide residue detection devices based on colorimetric strip methods, the sample preparation and detection processes are independent. Before detection, additional equipment is needed to pre-treat the samples (such as vegetables and fruits) by crushing and mixing them. After pre-treatment, the sample solution is transferred to the test strip for addition and detection. The operation is cumbersome, prone to leakage or contamination during sample transfer, and time-consuming, failing to meet the needs of rapid detection. At the same time, the installation and replacement of test strips are inconvenient. In existing devices, test strips are mostly fixed by adhesive or bolts, requiring tools for disassembly during replacement, which is cumbersome and makes it difficult to ensure the positioning accuracy of the test strip after replacement, affecting the reliability of the detection results. When some sample preparation and detection components are connected, the sample solution is prone to misalignment when added to the test strip, resulting in uneven color development, which in turn affects the interpretation of the detection results.

[0005] In summary, a rapid pesticide residue detection device is needed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a rapid pesticide residue detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A rapid pesticide residue detection device includes: The body is a rectangular structure; A rapid detection component is disposed on one side of the machine body. The rapid detection component includes three insertion slots, which are symmetrically arranged on one side of the machine body. An insertion frame is inserted into the inner wall of the insertion slot. A test strip is installed inside the insertion frame. The test strip is a test strip impregnated with colorimetric reagents such as bromothymol blue and indophenol acetate. A mixing sample preparation assembly is disposed on the top of the machine body. The mixing sample preparation assembly includes a material discharge hole, which is opened on the top of the machine body and communicates with the inside of the insertion slot. A material discharge tube is snapped into the inner wall of the material discharge hole. A sample preparation cylinder is fixedly connected to the top of the material discharge tube. A filter disc is fixedly connected to the inner wall of the material discharge tube. A support lifting assembly is provided at the top and bottom of the machine body.

[0008] With the rapid testing component, the connector frame can be quickly tested, and the internal test strips can be quickly replaced. It can also be used with the mixing and sample preparation component to quickly prepare samples of fruits and vegetables for testing, which can then be used with the test strips for rapid testing. The entire unit is detachable for easy maintenance. The support and lifting component facilitates lifting and supporting the machine body.

[0009] Preferably, a rectangular ring plate is snapped onto the top of the plug-in frame, and a cover plate is fixedly connected to the top of the rectangular ring plate.

[0010] The rectangular ring clamp plate can be clamped to the plug-in frame, thereby fixing the cover plate to the plug-in frame for easy testing.

[0011] Preferably, a first rectangular protrusion is symmetrically fixedly connected to both sides of the insertion slot, a second rectangular protrusion is symmetrically fixedly connected to both sides of the insertion frame, a first operating handle is fixedly connected to one side of the insertion frame, and a second operating handle is fixedly connected to the top of the cover plate.

[0012] The first rectangular protrusion and the second rectangular protrusion can be used to connect and fix the plug frame and the plug slot, thereby facilitating the plug frame to be plugged in for testing. The first operating handle facilitates the removal of the plug frame, and the second operating handle facilitates the separation of the cover plate.

[0013] Preferably, the top of the cover plate is provided with a feed hole, and an observation hole is provided on the edge of the top of the cover plate away from the feed hole.

[0014] The feed hole facilitates the detection of samples falling onto the test paper at the bottom, thus making it convenient to test fruits and vegetables, while the observation hole facilitates the observation of the test paper.

[0015] Preferably, the top of the sample preparation cylinder is provided with an internal threaded retaining hole, the inner wall of the internal threaded retaining hole is threadedly connected to an external threaded ring plate, the top of the external threaded ring plate is fixedly connected to a round cover, and the top of the round cover is fixedly connected to a feed pipe.

[0016] The sample preparation tube is used to hold cholinesterase solution. The external threaded ring plate can be rotated and fixed with the internal threaded retaining hole, which allows the sample preparation tube and the round cover to be disassembled and assembled. The feed tube facilitates the entry of fruits and vegetables for testing into the interior of the sample preparation tube.

[0017] Preferably, a rotating rod is rotatably connected to the inner wall of the round cover, an operating block is fixedly connected to the top end of the rotating rod, a transmission rod is fixedly connected to the bottom end of the rotating rod, an upper crushing blade is fixedly connected to the outer surface of the transmission rod, a lower crushing blade is fixedly connected to the outer surface of the transmission rod below the upper crushing blade, and a piston block is rotatably connected to the bottom end of the transmission rod, the piston block being engaged with the top inner wall of the discharge pipe.

[0018] The third threaded rod can be inserted into the round insertion hole, and then locked in place with the third fixing nut, so that the cover plate and the placement frame can be installed.

[0019] Preferably, a fixing ring plate is fixedly connected at the connection between the sample preparation tube and the discharge tube, and a round insertion rod is fixedly connected to the bottom of the fixing ring plate. A round insertion hole is opened at the top of the machine body, and the round insertion rod is inserted into the inner wall of the round insertion hole.

[0020] The round insert rod can be inserted into the round insert hole, thereby limiting and locking the fixing ring plate.

[0021] Preferably, a rectangular connecting plate is fixedly connected to the outer surface of the fixed ring plate, a second screw hole is provided at the top of the rectangular connecting plate, a first screw hole is provided at the top of the machine body, a first threaded clamp rod is threadedly connected to the inner wall of the first screw hole and the second screw hole, a first operating block is fixedly connected to the top of the first threaded clamp rod, and a first rectangular rod is fixedly connected to the outer surface of the first operating block.

[0022] The first threaded clamp can be fixed with the first threaded hole and the second threaded hole, thereby fixing the fixing ring plate to the machine body.

[0023] Preferably, the support lifting assembly includes two rectangular insert frames, which are symmetrically fixedly connected to both sides of the machine body. A rectangular insert rod is inserted into the inner wall of the rectangular insert frame. A rectangular handle plate is fixedly connected to the top of the rectangular insert rod. A handle is fixedly connected to the middle position of the rectangular handle plate. A cross support plate is fixedly connected to the bottom of the rectangular insert rod. A rectangular slot is provided on the top of the machine body, and the rectangular handle plate is engaged with the rectangular slot. A cross slot is provided on the bottom of the machine body, and the cross support plate is engaged with the cross slot.

[0024] The rectangular handle and grip allow for lifting the device while it is being carried. The cross support plate provides support for the device. The rectangular slot can be used to store the rectangular handle, and the cross slot can be used to store the cross support plate.

[0025] Preferably, a third screw hole is provided on one side of the rectangular insert frame, and two fourth screw holes are symmetrically provided on one side of the rectangular insert rod. The inner walls of the third screw hole and the fourth screw hole are threadedly connected to a second threaded clamp rod. One end of the second threaded clamp rod is fixedly connected to a second operating block, and the outer surface of the second operating block is fixedly connected to a second rectangular rod.

[0026] The second threaded clamp can be fixed with the third and fourth threaded holes, thereby fixing the rectangular insert frame and the rectangular insert rod.

[0027] Compared with existing technologies, the advantages of this invention are as follows: With the assistance of the rapid detection component, the insertion frame can be inserted into the inner wall of the insertion slot, enabling the detection of pesticide residues using test strips. Simultaneously, the cooperation between the cover plate and other components with the insertion frame allows for convenient and rapid replacement of the test strips. Combined with the mixing and sample preparation component, rapid sample preparation can be performed on the fruits and vegetables to be tested, allowing the prepared solution to fall onto the test strip for pesticide detection. The entire process is simple and fast, requiring no multiple devices, reducing the number of detection steps and improving detection efficiency. By incorporating a support and lifting component, the machine can be assisted in lifting when needed and supported by a cross-shaped clamp when in use, thus facilitating its use and transport. Attached Figure Description

[0028] Figure 1 To illustrate the overall structure of the rapid pesticide residue detection device; Figure 2 A bottom view of the rapid pesticide residue detection device is shown. Figure 3 This is a schematic diagram of the structure of the rapid pesticide residue detection device. Figure 4 This is a schematic diagram showing the structure of the plug-in frame of the rapid pesticide residue detection device; Figure 5 This is a schematic diagram showing the structure of the cover plate of the rapid pesticide residue detection device; Figure 6 This is a schematic diagram showing the structure of the sample preparation tube in the rapid pesticide residue detection device; Figure 7 To illustrate the structural diagram of the round cover of the rapid pesticide residue detection device; Figure 8 This is a schematic diagram showing the structure of the filter disc in the rapid pesticide residue detection device; Figure 9 This is a schematic diagram showing the structure of the rectangular insertion rod of the rapid pesticide residue detection device; Figure 10 This is a schematic diagram showing the structure of the cross-shaped slot in a rapid pesticide residue detection device.

[0029] In the picture: 1. Organism; 2. Rapid detection component; 21. Insertion slot; 22. First rectangular protrusion; 23. Insertion frame; 24. Second rectangular protrusion; 25. First operating handle; 26. Test paper; 27. Rectangular ring plate; 28. Cover plate; 29. ​​Second operating handle; 210. Feed hole; 211. Observation hole; 3. Mixing and sample preparation assembly; 31. Discharge hole; 32. Circular insertion hole; 33. First screw hole; 34. Sample preparation cylinder; 35. Fixing ring plate; 36. Circular insertion rod; 37. Discharge tube; 38. Rectangular connecting plate; 39. Second screw hole; 310. First threaded clamping rod; 311. Internal threaded clamping hole; 312. External threaded ring plate; 313. Circular cover; 314. Feed tube; 315. Rotating rod; 316. Operating block; 317. Transmission rod; 318. Piston block; 319. Upper crushing blade; 320. Lower crushing blade; 321. Filter circular plate; 322. First operating circular block; 323. First rectangular rod; 4. Support lifting assembly; 41. Rectangular insert frame; 42. Rectangular insert rod; 43. Third screw hole; 44. Fourth screw hole; 45. Second threaded clamp rod; 46. Second operating block; 47. Second rectangular rod; 48. Rectangular handle plate; 49. Handle; 410. Rectangular slot; 411. Cross support plate; 412. Cross slot. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 10 The present invention provides a technical solution: A rapid pesticide residue detection device includes a body 1, a rapid detection component 2, a mixing and sample preparation component 3, and a support and lifting component 4. The body 1 has a rectangular structure. The rapid detection component 2 is detachably assembled to one side of the body 1. The rapid detection component 2 includes three insertion slots 21, which are symmetrically arranged along the width of the body 1. Each insertion slot 21 has a guide groove on its inner wall, and an insertion frame 23 is slidably inserted into the guide groove to achieve precise guiding insertion between the insertion frame 23 and the body 1. The insertion frame 23 has a stepped limiting platform inside, and a test paper 26 is embedded and fixed on the stepped limiting platform. The test paper 26 is a test paper impregnated with colorimetric reagents such as bromothymol blue and indophenol acetate, used for colorimetric detection of pesticide residues in the sample to be tested. The mixing and sample preparation component 3 is detachably locked to the top of the body 1. The mixing sample preparation component 3 is connected to the rapid detection component 2 and corresponds one-to-one with it. It includes a material discharge hole 31, which is opened at the top of the machine body 1 and coaxially connected to the inside of the insertion slot 21 to ensure that the sample after preparation can fall accurately into the insertion slot 21 along the coaxial direction and contact the test paper 26. The inner wall of the material discharge hole 31 is provided with an annular groove, and the material discharge tube 37 is interference-fitted into the annular groove to achieve the sealing and fixation of the material discharge tube 37 and the machine body 1. The top of the material discharge tube 37 is fixedly connected to the sample preparation cylinder 34 by welding, and the inner wall of the material discharge tube 37 is fixedly connected to the filter disc 321 by bolts. The surface of the filter disc 321 is evenly provided with filter holes for filtering and removing impurities from the sample after preparation. The support and lifting component 4 is telescopically adjustable and assembled at the top and bottom of the machine body 1 to achieve stable support and placement of the device and convenient lifting and switching.

[0032] The rapid testing component 2 allows for rapid connection testing of the connector frame 23 and quick replacement of the internal test strip 26. It can also work with the mixing and sample preparation component 3 to quickly prepare samples of the fruits and vegetables to be tested, enabling rapid testing with the test strip 26. The entire component is detachable for easy maintenance. The supporting and lifting component 4 facilitates the lifting and support of the machine body 1.

[0033] refer to Figure 4 and Figure 5 A rectangular ring plate 27 is snapped onto the top edge of the plug-in frame 23. A cover plate 28 is integrally formed and fixedly connected to the top of the rectangular ring plate 27, and the cover plate 28 covers the top opening of the plug-in frame 23.

[0034] refer to Figure 3 , Figure 4 and Figure 5The inner walls of the two sides of the insertion slot 21 are integrally formed with first rectangular protrusions 22, which constitute the limiting edge of the guide slide. The two sides of the insertion frame 23 are integrally formed with second rectangular protrusions 24, which slide and adapt to the guide slide and cooperate with the first rectangular protrusions 22 for upper and lower limiting to prevent the insertion frame 23 from being inserted too far. A first operating handle 25 is fixedly connected to one side of the insertion frame 23 by screws. The outer surface of the first operating handle 25 is provided with anti-slip texture for easy insertion and removal of the insertion frame 23. The top of the cover plate 28 is fixedly connected to a second operating handle 29 by screws. The second operating handle 29 is set perpendicular to the cover plate 28 for easy removal and placement of the cover plate 28.

[0035] refer to Figure 3 , Figure 4 and Figure 5 The top of the cover plate 28 is provided with a feed hole 210, which is coaxially arranged with the discharge hole 31. The diameter of the feed hole 210 is not larger than the diameter of the discharge hole 31, ensuring that the sample falling from the discharge hole 31 accurately enters the insertion frame 23. An observation hole 211 is embedded on the edge of the top of the cover plate 28 away from the feed hole 210. The observation hole 211 is made of transparent acrylic material, and its projection area completely covers the color development area of ​​the test paper 26, so as to intuitively and clearly observe the color development change of the test paper 26.

[0036] refer to Figure 7 and Figure 8 The top of the sample preparation cylinder 34 is provided with an internal threaded retaining hole 311. The inner wall of the internal threaded retaining hole 311 is threadedly connected to an external threaded ring plate 312. The top of the external threaded ring plate 312 is integrally formed with a round cover 313. The inner diameter of the round cover 313 is the same as the inner diameter of the sample preparation cylinder 34. The top of the round cover 313 is integrally formed with a feed pipe 314. The feed pipe 314 is coaxially arranged with the round cover 313, and the top of the feed pipe 314 is provided with a flared structure for conveniently feeding the sample to be processed into the sample preparation cylinder 34.

[0037] refer to Figure 6 and Figure 7A rotating rod 315 is rotatably connected to the inner wall of the round cover 313 via a bearing. The bearing is a sealed bearing to achieve a sealed rotational fit between the rotating rod 315 and the round cover 313. The top end of the rotating rod 315 passes through the round cover 313 and is fixedly connected to an operating block 316 via a key. A transmission rod 317 is fixedly connected to the bottom end of the rotating rod 315. An upper crushing blade 319 is fixedly connected to the outer surface of the transmission rod 317 inside the sample preparation cylinder 34 via welding. The outer surface of the transmission rod 317 is located below the upper crushing blade 319. The sample preparation tube 34 is equipped with a lower crushing blade 320 that is fixedly connected by welding. The upper crushing blade 319 and the lower crushing blade 320 are staggered and the edges of the blades are all provided with sharp cutting edges for efficient crushing and mixing of the sample. The bottom end of the transmission rod 317 extends into the material discharge tube 37 and is fixedly connected to a piston block 318 by threads. The outer surface of the piston block 318 is fitted with a sealing ring. The piston block 318 is sealed and engaged with the top inner wall of the material discharge tube 37 through the sealing ring to realize the on-off control of the material discharge tube 37.

[0038] refer to Figure 3 and Figure 6 A fixed ring plate 35 is integrally formed at the connection between the sample preparation cylinder 34 and the discharge pipe 37. Four round insert rods 36 are evenly distributed around the bottom of the fixed ring plate 35. Each round insert rod 36 is perpendicular to the fixed ring plate 35 and integrally formed. A round insertion hole 32 is opened on the top of the machine body 1 corresponding to each round insert rod 36. The round insert rod 36 and the round insertion hole 32 are fitted with a clearance to realize the rapid pre-positioning of the sample preparation cylinder 34 and the machine body 1.

[0039] refer to Figure 3 and Figure 6 Two rectangular connecting plates 38 are integrally formed symmetrically on the outer surface of the fixed ring plate 35. Each rectangular connecting plate 38 has a second screw hole 39 at its top. The top of the machine body 1 has a first screw hole 33 corresponding to each second screw hole 39. The inner walls of the first screw hole 33 and the second screw hole 39 are threaded together with a first threaded locking rod 310. The fixed ring plate 35 is locked and fixed to the machine body 1 by the first threaded locking rod 310 to ensure that the mixing sample preparation component 3 is firmly connected to the machine body 1. The top of the first threaded locking rod 310 has a first operating block 322 integrally formed. Two first rectangular rods 323 are symmetrically fixedly connected to the outer surface of the first operating block 322. The two first rectangular rods 323 are arranged in a cross shape for easy rotation of the first operating block 322.

[0040] refer to Figure 3 , Figure 9 and Figure 10The supporting lifting assembly 4 includes two rectangular insert frames 41, which are symmetrically welded and fixed to both sides of the body 1. The inner wall of the rectangular insert frame 41 is clearance-fitted with the rectangular insert rod 42, realizing a telescopic sliding connection between the rectangular insert rod 42 and the rectangular insert frame 41. A rectangular handle plate 48 is fixedly connected to the top of the rectangular insert rod 42 by screws. A handle 49 is integrally formed at the middle position of the rectangular handle plate 48. The outer surface of the handle 49 is covered with an anti-slip rubber sleeve for the lifting device. The bottom end of the rectangular insert rod 42 is fixedly connected to the body 1 by screws. A cross support plate 411 is provided, and an anti-slip pad is provided at the bottom of the cross support plate 411 to stabilize the support device; a rectangular slot 410 is provided on the top of the body 1 corresponding to the rectangular handle plate 48, and the rectangular handle plate 48 is interference-fitted with the rectangular slot 410 so that the rectangular handle plate 48 can be stored in the rectangular slot 410; a cross slot 412 is provided on the bottom of the body 1 corresponding to the cross support plate 411, and the cross support plate 411 is interference-fitted with the cross slot 412 so that the cross support plate 411 can be stored in the cross slot 412.

[0041] refer to Figure 3 and Figure 9 A third screw hole 43 is provided on one side of the rectangular insert frame 41, and two fourth screw holes 44 are symmetrically provided on one side of the rectangular insert rod 42 along its length direction. The two fourth screw holes 44 correspond to the retracted state and the extended state of the rectangular insert rod 42, respectively. The inner walls of the third screw hole 43 and the fourth screw hole 44 are threaded together with a second threaded locking rod 45. The relative position of the rectangular insert rod 42 and the rectangular insert frame 41 is locked by the second threaded locking rod 45 to ensure the stability of the device in the supported or retracted state. A second operating block 46 is integrally formed at one end of the second threaded locking rod 45. Two second rectangular rods 47 are symmetrically fixedly connected to the outer surface of the second operating block 46 for convenient rotation of the second operating block 46.

[0042] The overall working principle is as follows: In use, insert the material drop tube 37 into the inside of the round insertion hole 32, then insert the round insertion rod 36 into the inner wall of the round insertion hole 32, and then fix the first threaded clamp rod 310 into the first threaded hole 33 and the second threaded hole 39. This can save energy and allow the sample preparation cylinder 34 to be installed. At this point, the internal threaded locking hole 311 at the top is rotated and fixed to the external threaded ring plate 312, and the round cover 313 can then be fixed. At this time, the test strip 26 is placed inside the insertion frame 23. Then, the rectangular ring plate 27 at the bottom of the cover plate 28 is engaged with the top of the insertion frame 23, and the insertion frame 23 is inserted into the insertion slot 21. At this point, the fruit and vegetable tissue to be tested is placed into the sample preparation cylinder 34 through the feed pipe 314. The cholinesterase solution is then placed inside the sample preparation cylinder 34. The operating block 316 is rotated so that the rotating rod 315 can drive the transmission rod 317 to rotate, which in turn drives the upper crushing blade 319 and the lower crushing blade 320 to stir, thereby mixing the solution with the fruit and vegetable tissue. The external threaded ring plate 312 is then rotated to separate from the internal threaded clamping hole 311, causing the piston block 318 to separate from the discharge pipe 37, and then dripped onto the test paper 26 for testing and observation. When the body 1 needs to be lifted, the rectangular insert rod 42 slides on the inner wall of the rectangular insert frame 41, causing the rectangular handle plate 48 to separate from the rectangular slot 410, thus facilitating the lifting handle 49 for carrying. When the body 1 needs to be supported, the rectangular insert rod 42 slides on the inner wall of the rectangular insert frame 41, causing the cross support plate 411 to separate from the cross slot 412, thus supporting the body 1. After the rectangular insert rod 42 is adjusted on the inner wall of the rectangular insert frame 41, the second threaded rod 45 is fixed to the third screw hole 43 and the fourth screw hole 44.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid pesticide residue detection device, characterized in that, include: The body (1) has a rectangular body structure; A rapid detection component (2) is disposed on one side of the body (1). The rapid detection component (2) includes a connector slot (21). There are three connector slots (21) symmetrically arranged on one side of the body (1). A connector frame (23) is inserted into the inner wall of the connector slot (21). A test paper (26) is installed inside the connector frame (23). The test paper (26) is a test paper impregnated with colorimetric reagents such as bromothymol blue and indophenol acetate. A mixing sample preparation component (3) is provided on the top of the machine body (1). The mixing sample preparation component (3) includes a material discharge hole (31). The material discharge hole (31) is located on the top of the machine body (1) and communicates with the interior of the insertion slot (21). A material discharge tube (37) is snapped into the inner wall of the material discharge hole (31). A sample preparation cylinder (34) is fixedly connected to the top of the material discharge tube (37). A filter disc (321) is fixedly connected to the inner wall of the material discharge tube (37). Support lifting assembly (4) is provided at the top and bottom of the body (1).

2. The rapid pesticide residue detection device according to claim 1, characterized in that: The top of the plug-in frame (23) is snapped with a rectangular ring plate (27), and the top of the rectangular ring plate (27) is fixedly connected with a cover plate (28).

3. The rapid pesticide residue detection device according to claim 1, characterized in that: The two sides of the insertion slot (21) are symmetrically fixedly connected with a first rectangular protrusion (22), the two sides of the insertion frame (23) are symmetrically fixedly connected with a second rectangular protrusion (24), the one side of the insertion frame (23) is fixedly connected with a first operating handle (25), and the top of the cover plate (28) is fixedly connected with a second operating handle (29).

4. The rapid pesticide residue detection device according to claim 2, characterized in that: The top of the cover plate (28) is provided with a feed hole (210), and an observation hole (211) is provided on the side edge of the top of the cover plate (28) away from the feed hole (210).

5. The rapid pesticide residue detection device according to claim 1, characterized in that: The top of the sample preparation cylinder (34) is provided with an internal threaded locking hole (311), and the inner wall of the internal threaded locking hole (311) is threadedly connected to an external threaded ring plate (312). The top of the external threaded ring plate (312) is fixedly connected to a round cover (313), and the top of the round cover (313) is fixedly connected to a feed pipe (314).

6. The rapid pesticide residue detection device according to claim 5, characterized in that: A rotating rod (315) is rotatably connected to the inner wall of the round cover (313). An operating block (316) is fixedly connected to the top of the rotating rod (315). A transmission rod (317) is fixedly connected to the bottom of the rotating rod (315). An upper crushing blade (319) is fixedly connected to the outer surface of the transmission rod (317). A lower crushing blade (320) is fixedly connected to the outer surface of the transmission rod (317) below the upper crushing blade (319). A piston block (318) is rotatably connected to the bottom of the transmission rod (317). The piston block (318) is engaged with the top inner wall of the discharge pipe (37).

7. The rapid pesticide residue detection device according to claim 1, characterized in that: A fixing ring plate (35) is fixedly connected at the connection between the sample preparation tube (34) and the material discharge tube (37). A round insertion rod (36) is fixedly connected at the bottom of the fixing ring plate (35). A round insertion hole (32) is opened at the top of the machine body (1). The round insertion rod (36) is inserted into the inner wall of the round insertion hole (32).

8. The rapid pesticide residue detection device according to claim 7, characterized in that: A rectangular connecting plate (38) is fixedly connected to the outer surface of the fixed ring plate (35). A second screw hole (39) is provided at the top of the rectangular connecting plate (38). A first screw hole (33) is provided at the top of the body (1). A first threaded rod (310) is threadedly connected to the inner wall of the first screw hole (33) and the second screw hole (39). A first operating block (322) is fixedly connected to the top of the first threaded rod (310). A first rectangular rod (323) is fixedly connected to the outer surface of the first operating block (322).

9. The rapid pesticide residue detection device according to claim 1, characterized in that: The support lifting assembly (4) includes a rectangular insert frame (41). There are two rectangular insert frames (41) which are symmetrically fixedly connected to both sides of the body (1). A rectangular insert rod (42) is inserted into the inner wall of the rectangular insert frame (41). A rectangular handle plate (48) is fixedly connected to the top of the rectangular insert rod (42). A handle (49) is fixedly connected to the middle position of the rectangular handle plate (48). A cross support plate (411) is fixedly connected to the bottom of the rectangular insert rod (42). A rectangular slot (410) is opened on the top of the body (1). The rectangular handle plate (48) is engaged with the rectangular slot (410). A cross slot (412) is opened on the bottom of the body (1). The cross support plate (411) is engaged with the cross slot (412).

10. The rapid pesticide residue detection device according to claim 9, characterized in that: A third screw hole (43) is provided on one side of the rectangular insert frame (41), and two fourth screw holes (44) are symmetrically provided on one side of the rectangular insert rod (42). The inner walls of the third screw hole (43) and the fourth screw hole (44) are threadedly connected to a second threaded clamp rod (45). One end of the second threaded clamp rod (45) is fixedly connected to a second operating block (46), and the outer surface of the second operating block (46) is fixedly connected to a second rectangular rod (47).

Images