Portable agricultural product quality safety inspection device

Abstract

The invention discloses an agricultural product quality safety inspection device convenient to carry, and relates to the field of agricultural product safety detection.The agricultural product quality safety inspection device comprises a machine body and a top cover hinged to the machine body, a controller is arranged on the machine body, and a plurality of electric heating pieces are arranged on the machine body along a straight line at equal intervals; limiting frames located on the two sides of the electric heating piece are symmetrically arranged on the surface of the machine body. According to the agricultural product quality safety inspection device convenient to carry, the top cover is provided with the clamping grooves and the sample boxes, after agricultural product samples are placed in the top cover, the samples and eluent in all the sample boxes can be mixed through swinging of the top cover, so that elution of pesticides on the samples is facilitated, and under synchronous cooperative use of the pressure applying unit and the pressure maintaining unit, the detection efficiency is improved. The liquid to be detected in all the sample boxes can be synchronously dropped on the test paper cards in the detection process, and all the test paper cards are synchronously folded and extruded, so that all samples can be synchronously detected, and the quality detection efficiency of agricultural products is remarkably improved.

Description

Technical Field

[0001] The invention relates to agricultural product safety detection technology, and in particular to a portable agricultural product quality safety detection device. Background Art

[0002] Agricultural product quality and safety testing is a key link in ensuring the quality of agricultural products and food safety. Among them, pesticide residue testing of agricultural products is the top priority. It can not only effectively protect the health and safety of consumers, but also promote the healthy and sustainable development of agriculture.

[0003] When agricultural products are tested for pesticide residues, corresponding testing instruments are required. The commonly used testing method is to use test paper made of cholinesterase and a color developer in conjunction with corresponding instruments for testing. During the test, the operator is required to collect crop samples and soak them in an eluent for sample preparation. The test paper is then placed on the instrument for heating, and the sample liquid is then dropped onto the white sheet on the test paper. Finally, the test paper is folded in half so that the red sheet and the white sheet are fully squeezed and contacted, allowing the red sheet to contact and react with the sample droplets. When the above-mentioned testing method is used to test agricultural products, it is necessary to perform a single operation on the agricultural products to be tested. When multiple agricultural products are tested simultaneously, it takes more time, resulting in lower testing efficiency for agricultural products. Summary of the invention

[0004] The purpose of the present invention is to provide a portable agricultural product quality and safety testing device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable agricultural product quality and safety inspection device, comprising a body and a top cover hinged on the body, a controller is arranged on the body, a plurality of electric heating plates are arranged equidistantly along a straight line on the body, the surface of the body is symmetrically provided with limit frames located on both sides of the electric heating plates, a test paper card is arranged between the limit frames on both sides, a red sheet and a white sheet are arranged on the test paper card, the test paper card located at the white sheet part is inserted between the limit frames on both sides, a baffle located on one side of the electric heating plate is fixedly connected to the surface of the body, a rotating seat located on the other side of the electric heating plate is fixedly connected to the surface of the body, a pressure plate is rotatably connected to the rotating seat, and a torsion spring fixedly connected to the rotating shaft of the pressure plate is installed inside the rotating seat; The top of the top cover is provided with a card slot corresponding to the electric heater, a sample box is embedded in the card slot, an entrance is provided at the end of the sample box, a sealing plug is embedded at the entrance, a guide groove is provided on the inner wall of the card slot, a liquid discharge nozzle corresponding to the guide groove is fixedly connected to one side of the sample box, and a rubber bag is installed on the other side of the sample box; The top cover is provided with a pressure unit, and the pressure unit is used to simultaneously apply pressure to the rubber bags on all sample boxes; A pressure-maintaining unit is arranged inside the machine body, and the pressure-maintaining unit is used to turn over the red sheet part of the test paper card and press it onto the white sheet part.

[0006] Furthermore, the position of the baffle corresponds to the test paper card, and the baffle can limit the length of the test paper card inserted into the inner part of the limiting frame.

[0007] Furthermore, the position of the guide groove corresponds to the electric heating plate, and the liquid discharge nozzle can be inserted into the guide groove.

[0008] Furthermore, a partitioning mesh plate is provided inside the sample box, and the inside of the sample box is divided into a liquid collecting chamber and a storage chamber by the partitioning mesh plate. The storage chamber is directly connected to the inlet, and the liquid collecting chamber is directly connected to the liquid discharge nozzle.

[0009] Furthermore, the pressure unit includes limiting guide grooves symmetrically opened on both sides of the top of the top cover, the inner side surface of the limiting guide groove is slidably connected with a limiting guide block, the inner side surface of the limiting guide block is opened with a vertical groove, the inner side surface of the vertical groove is slidably connected with a connecting block, a supporting spring is fixedly connected between the bottom of the connecting block and the bottom end of the inner wall of the vertical groove, the top of the connecting block is fixedly connected with a supporting rod that passes through the top of the limiting guide block and is slidably connected thereto, and the tops of the support rods on both sides are fixedly connected with the same horizontal plate.

[0010] Furthermore, the longitudinal section of the limiting guide groove is in a convex shape, and the shape and size of the limiting guide block are compatible with the limiting guide groove.

[0011] Furthermore, the position of the transverse plate corresponds to the rubber bag, the transverse plate is movably connected to the surface of the rubber bag in a sliding manner, the top position of the rubber bag and the top position of the limiting guide block are both higher than the top surface position of the top cover, and the bottom surface of the transverse plate and the top of the limiting guide block are spaced apart.

[0012] Furthermore, a limiting slide groove is provided inside the body, and a bending plate is slidably connected to the inner side surface of the limiting slide groove, and a pressure roller is rotatably connected to the side of the bending plate close to the pressure plate. The position height of the pressure roller corresponds to the pressure plate, and the pressure roller can push the pressure plate to rotate and squeeze the folded test paper card. A spring groove is provided inside the body, and an extrusion spring is fixedly connected to the inner wall of the spring groove. The extrusion spring is fixedly connected to the bending plate, and the extrusion spring is arranged on the side of the bending plate close to the pressure plate.

[0013] Furthermore, a movable groove is provided inside the body, and a block located inside the movable groove is fixedly connected to the side of the bending plate, and a translation groove is provided inside the body, and a limiting rod corresponding to the block is slidably connected inside the translation groove, a limiting straight surface is provided on one side of the limiting rod, and a guiding arc surface is provided on the other side of the limiting rod, a pressure spring is fixedly connected between the side of the translation groove away from the blocking block and the limiting rod, a push block is fixedly connected to the surface of the limiting rod, and the push block is slidably connected to the inner side surface of the translation groove, the limiting straight surface is provided on the side of the limiting rod close to the pressure plate, and the positions of the limiting straight surface and the guiding arc surface correspond to the blocking block, and when the blocking block moves to squeeze the guiding arc surface, the blocking block can push the limiting rod to move toward the inside of the translation groove.

[0014] Furthermore, a drawer groove is provided on the side of the machine body, a drawer box is slidably connected to the inner side of the drawer groove, and a test paper card slot and a storage slot are provided inside the drawer box.

[0015] Compared with the prior art, the portable agricultural product quality and safety inspection device provided by the present invention has the following beneficial effects: The portable agricultural product quality and safety inspection device is provided with a card slot and a sample box on the top cover, so that after the agricultural product sample is put in, the samples in all the sample boxes can be mixed with the eluent by swinging the top cover, so as to facilitate the elution of the pesticide on the sample, and under the synchronous cooperation of the pressure-applying unit and the pressure-maintaining unit, the liquid to be inspected in all the sample boxes can be dripped onto the test paper card synchronously during the inspection process, and all the test paper cards can be synchronously folded and squeezed, so that all samples can be inspected synchronously, thereby significantly improving the quality inspection efficiency of the agricultural product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the drawer box and the body in a state of being separated provided by an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle; Figure 4 A schematic diagram of a partial cross-sectional structure of a machine body provided by an embodiment of the present invention; Figure 5The embodiment of the present invention provides Figure 4 The enlarged structural diagram at B in the middle; Figure 6 The embodiment of the present invention provides Figure 4 The enlarged structural diagram at C in the middle; Figure 7 A schematic diagram of a partial cross-sectional structure of a body and a top cover provided in an embodiment of the present invention; Figure 8 The embodiment of the present invention provides Figure 7 The enlarged structural diagram at D in the middle; Fig. 9 A schematic diagram of the structure of the sample box and the card slot in a separated state provided by an embodiment of the present invention; Fig.10 A schematic diagram of a partial cross-sectional structure of a sample box provided in an embodiment of the present invention; Fig.11 A schematic diagram of a partial cross-sectional structure of a top cover provided in an embodiment of the present invention; Fig.12 The embodiment of the present invention provides Fig.11 Enlarged structural diagram at E in the middle.

[0018] Description of reference numerals: 1. Machine body; 2. Top cover; 3. Electric heating plate; 31. Limiting frame; 32. Baffle; 33. Rotating seat; 34. Pressing plate; 35. Torsion spring; 4. Card slot; 41. Sample box; 42. Inlet; 43. Sealing plug; 44. Guide groove; 45. Discharge nozzle; 46. Rubber bag; 5. Partition mesh plate; 51. Liquid collecting chamber; 52. Storage chamber; 6. Limiting guide groove; 61. Limiting guide block; 62. Vertical groove; 63. Connecting block; 64. Support spring; 65. Support rod; 66. Cross plate; 7. Limiting slide groove; 71. Bending plate; 72. Pressing roller; 73. Extrusion spring; 74. Card block; 75. Limiting rod; 76. Limiting straight surface; 77. Guide arc surface; 78. Pressure spring; 79. Push block; 8. Drawer slot; 81. Drawer box; 82. Test paper card slot; 83. Storage slot. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example: See also Figure 1-Figure 12A portable agricultural product quality and safety inspection device comprises a body 1 and a top cover 2 hinged on the body 1, a controller is arranged on the body 1, a plurality of electric heating plates 3 are arranged equidistantly along a straight line on the body 1, a limiting frame 31 located on both sides of the electric heating plates 3 is symmetrically arranged on the surface of the body 1, a test paper card is arranged between the limiting frames 31 on both sides, a red sheet and a white sheet are arranged on the test paper card, and the test paper card located at the white sheet part is inserted between the limiting frames 31 on both sides, a baffle 32 located on one side of the electric heating plate 3 is fixedly connected to the surface of the body 1, a rotating seat 33 located on the other side of the electric heating plate 3 is fixedly connected to the surface of the body 1, a pressing plate 34 is rotatably connected to the rotating seat 33, and a torsion spring 35 fixedly connected to the rotating shaft of the pressing plate 34 is installed inside the rotating seat 33; A card slot 4 corresponding to the electric heater 3 is provided on the top of the top cover 2, a sample box 41 is embedded in the card slot 4, an entrance 42 is provided at the end of the sample box 41, a sealing plug 43 is embedded at the entrance 42, a guide groove 44 is provided on the inner wall of the card slot 4, a liquid discharge nozzle 45 corresponding to the guide groove 44 is fixedly connected to one side of the sample box 41, and a rubber bag 46 is installed on the other side of the sample box 41; The top cover 2 is provided with a pressure unit, which is used to simultaneously apply pressure to the rubber bags 46 on all the sample boxes 41; A pressure-maintaining unit is disposed inside the body 1 , and the pressure-maintaining unit is used to turn over the red sheet portion of the test paper card and press it onto the white sheet portion.

[0021] It should be added that the position of the baffle 32 corresponds to the test paper card, and the baffle 32 can limit the length of the test paper card inserted into the inner part of the limit frame 31, that is, after the test paper card is inserted under the limit frame 31, when it moves to contact with the baffle 32, the test paper card cannot move further, thereby facilitating the positioning of the insertion position of the test paper card.

[0022] In this embodiment, the position of the guide groove 44 corresponds to the electric heating plate 3 , and the liquid discharge nozzle 45 can be inserted into the guide groove 44 .

[0023] It should be specifically explained that after the test paper card is installed, the position of the white sheet arranged thereon overlaps with the position of the electric heating sheet 3, so that the temperature on the electric heating sheet 3 can be transferred to the white sheet, and the position of the guide groove 44 corresponds to the electric heating sheet 3, so that the liquid discharged from the discharge nozzle 45 passing through the guide groove 44 can drip smoothly on the white sheet, thereby facilitating the detection work.

[0024] In this embodiment, a partition mesh plate 5 is provided inside the sample box 41 , and the sample box 41 is divided into a liquid collecting chamber 51 and a storage chamber 52 by the partition mesh plate 5 . The storage chamber 52 is directly connected to the inlet 42 , and the liquid collecting chamber 51 is directly connected to the liquid discharge nozzle 45 .

[0025] It should be noted that, through the provision of the partition mesh plate 5, after the top cover 2 is closed on the body 1, the eluent in the storage cavity 52 can pass through the partition mesh plate 5 and gather in the liquid collecting cavity 51, so that when the rubber bag 46 is pressurized to squeeze the internal gas of the sample box 41, the eluent can be discharged more smoothly from the bottom drainage nozzle 45 to the white sheet. In addition, through the provision of the partition mesh plate 5, the probability of agricultural products clogging the drainage nozzle 45 can be greatly reduced, thereby ensuring the smooth progress of agricultural product quality and safety testing.

[0026] In this embodiment, the pressure unit includes a limiting guide groove 6 symmetrically opened on both sides of the top of the top cover 2, the inner side surface of the limiting guide groove 6 is slidably connected with a limiting guide block 61, the inner side surface of the limiting guide block 61 is opened with a vertical groove 62, the inner side surface of the vertical groove 62 is slidably connected with a connecting block 63, a supporting spring 64 is fixedly connected between the bottom of the connecting block 63 and the bottom end of the inner wall of the vertical groove 62, the top of the connecting block 63 is fixedly connected with a supporting rod 65 that passes through the top of the limiting guide block 61 and is slidably connected thereto, and the tops of the support rods 65 on both sides are fixedly connected with the same horizontal plate 66.

[0027] It should be added that the longitudinal section of the limiting guide groove 6 is in a convex shape, and the shape and size of the limiting guide block 61 are compatible with the limiting guide groove 6, so that the limiting guide block 61 can slide smoothly along the inner wall of the limiting guide groove 6.

[0028] In this embodiment, the position of the transverse plate 66 corresponds to the rubber bag 46, and the transverse plate 66 is movably connected to the surface of the rubber bag 46 in a sliding manner. The top position of the rubber bag 46 and the top position of the limiting guide block 61 are both higher than the top surface position of the top cover 2, and the bottom surface of the transverse plate 66 and the top of the limiting guide block 61 are spaced apart, so that the transverse plate 66 can be pressed and moved downward to squeeze all the rubber bags 46 synchronously.

[0029] It should be noted that the spacing stroke between the bottom surface of the horizontal plate 66 and the top of the limiting guide block 61 is formed by the pressure movement of the horizontal plate 66 on the rubber bag 46. Therefore, the discharge amount at the discharge nozzle 45 at the bottom of the sample box 41 can be controlled by setting the distance between the bottom surface of the horizontal plate 66 and the top of the limiting guide block 61.

[0030] In this embodiment, a limiting slide groove 7 is provided inside the body 1, and a bending plate 71 is slidably connected to the inner side surface of the limiting slide groove 7. The bending plate 71 is rotatably connected to a pressure roller 72 on the side close to the pressure plate 34. The position height of the pressure roller 72 corresponds to the pressure plate 34. The pressure roller 72 can push the pressure plate 34 to rotate and squeeze the folded test paper card. A spring groove is provided inside the body 1, and an extrusion spring 73 is fixedly connected to the inner wall of the spring groove. The extrusion spring 73 is fixedly connected to the bending plate 71, and the extrusion spring 73 is arranged on the side of the bending plate 71 close to the pressure plate 34.

[0031] The cam 77 is provided with a plurality of locking plates 74, each of which is provided with a plurality of locking plates 76. The cam 77 is provided with a plurality of locking plates 76a and 76b, and the plurality of locking plates 76b are provided with a plurality of locking plates 76a.

[0032] In this embodiment, a drawer slot 8 is provided on the side of the machine body 1 , and a drawer box 81 is slidably connected to the inner side of the drawer slot 8 . A test paper card slot 82 and a storage slot 83 are provided inside the drawer box 81 .

[0033] It should be noted that the test paper card slot 82 is used to store test paper cards for pesticide testing, and the storage slot 83 is used to store bottles containing eluent, so that the body 1 is easy to carry and can perform safety testing of agricultural products at any time.

[0034] When it is necessary to conduct quality and safety tests on a variety of agricultural products, the operator first opens the drawer box 81, and takes out the test paper card and the eluent to be used, and then controls the electric heater 3 to heat through the controller. During the heating process, the operator puts the agricultural product sample to be tested into the sample box 41, and injects an appropriate amount of eluent. In addition, the operator also needs to inject the eluent into a sample box 41 without the agricultural product sample as a control; After the sample and the eluent are placed in the sample box 41, the operator seals the inlet 42 of the sample box 41 through the sealing plug 43, and inserts the sample box 41 into the card slot 4, so that the discharge nozzle 45 on the sample box 41 can be inserted into the guide groove 44 inside the card slot 4, and then the operator pushes the cross plate 66 to move it to contact the top surface of the rubber bag 46 on the sample box 41, and then the operator reciprocates and swings the top cover 2 several times to oscillate the eluent and the agricultural product sample in the sample box 41; After heating for a certain period of time, the operator inserts one end of the white sheet of the test paper card used for detection into the limit frame 31 until the end thereof abuts against the stop bar 32 at the limit frame 31, and then covers the top cover 2. After that, the operator presses the horizontal plate 66 downward, and the horizontal plate 66 moves downward to squeeze all rubber capsules 46 at the same time, so that the eluent in all sample boxes 41 can be discharged from the discharge nozzle 45 at the bottom end at the same time, thereby falling on the white sheet corresponding to the discharge nozzle 45. After that, the operator manually pushes the bending plate 71, and the bending plate 71 is bent. The movement of 71 drives the pressing roller 72 to move and compress the squeezing spring 73. During the movement of the pressing roller 72, the pressing plate 34 is pushed, so that the pressing plate 34 rotates toward the side of the electric heating plate 3 and drives the torsion spring 35 to compress, and drives the test paper card to fold, so that the red sheet on it gradually approaches the white sheet, and finally contacts the white sheet, so that the eluent absorbed by the white sheet can penetrate into the red sheet. In this process, the pressing roller 72 squeezes the pressing plate 34, so that the red sheet can fully and stably contact the white sheet. The cam 76 is pressed against the stopper 74 to allow the stopper 74 to move in a reverse direction and the stopper 74 to move in a reverse direction. When the test is completed, the operator pushes the push block 79 so that the movement of the limiting rod 75 no longer restricts the reset of the card block 74, so that under the action of the rebound force of the extrusion spring 73, the bending plate 71 moves in the opposite direction to reset and drives the pressure roller 72 to move and reset, so that it no longer squeezes the pressure plate 34. At this time, under the action of the rebound force of the torsion spring 35, the pressure plate 34 rotates in the opposite direction to reset, so that it no longer squeezes the test paper card, and then the operator opens the top cover 2. At this time, the reacted test paper card is completely exposed, and the operator can judge the pesticide residue in the agricultural product sample by comparing the color changes on the red sheet of the test paper card.

[0035] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable agricultural product quality and safety inspection device, comprising a body (1) and a top cover (2) hinged to the body (1), wherein the body (1) is provided with a controller, characterized in that: A plurality of electric heating plates (3) are arranged equidistantly along a straight line on the body (1); limiting frames (31) are symmetrically arranged on the surface of the body (1) and are located on both sides of the electric heating plates (3); a test paper card is arranged between the limiting frames (31) on both sides; a red sheet and a white sheet are arranged on the test paper card; the test paper card located on the white sheet portion is inserted between the limiting frames (31) on both sides; a baffle (32) located on one side of the electric heating plate (3) is fixedly connected to the surface of the body (1); a rotating seat (33) located on the other side of the electric heating plate (3) is fixedly connected to the surface of the body (1); a pressure plate (34) is rotatably connected to the rotating seat (33); a torsion spring (35) fixedly connected to the rotating shaft of the pressure plate (34) is installed inside the rotating seat (33); A card slot (4) corresponding to the electric heater (3) is provided on the top of the top cover (2); a sample box (41) is embedded in the card slot (4); an entrance (42) is provided at the end of the sample box (41); a sealing plug (43) is embedded at the entrance (42); a guide groove (44) is provided on the inner wall of the card slot (4); a liquid discharge nozzle (45) corresponding to the guide groove (44) is fixedly connected to one side of the sample box (41); and a rubber bag (46) is installed on the other side of the sample box (41); The top cover (2) is provided with a pressure unit, and the pressure unit is used to simultaneously apply pressure to the rubber bags (46) on all the sample boxes (41); A pressure-maintaining unit is arranged inside the body (1), and the pressure-maintaining unit is used to turn over the red sheet portion of the test paper card and press it onto the white sheet portion.

2. A portable agricultural product quality and safety inspection device according to claim 1, characterized in that: The position of the baffle (32) corresponds to the test paper card, and the baffle (32) can limit the length of the test paper card inserted into the inner part of the limiting frame (31).

3. The portable agricultural product quality and safety inspection device according to claim 1 is characterized in that: The position of the guide groove (44) corresponds to the electric heating plate (3), and the liquid discharge nozzle (45) can be inserted into the guide groove (44).

4. The portable agricultural product quality and safety inspection device according to claim 1 is characterized in that: A partitioning mesh plate (5) is provided inside the sample box (41), and the interior of the sample box (41) is divided by the partitioning mesh plate (5) to form a liquid collecting chamber (51) and an object storage chamber (52), the object storage chamber (52) is directly connected to the inlet (42), and the liquid collecting chamber (51) is directly connected to the liquid discharge nozzle (45).

5. The portable agricultural product quality and safety testing device according to claim 1 is characterized in that: The pressure unit comprises limiting guide grooves (6) symmetrically arranged on both sides of the top of the top cover (2); the inner side surface of the limiting guide groove (6) is slidably connected to a limiting guide block (61); the inner side surface of the limiting guide block (61) is provided with a vertical groove (62); the inner side surface of the vertical groove (62) is slidably connected to a connecting block (63); a supporting spring (64) is fixedly connected between the bottom of the connecting block (63) and the bottom end of the inner wall of the vertical groove (62); the top of the connecting block (63) is fixedly connected to a supporting rod (65) penetrating the top of the limiting guide block (61) and slidably connected thereto; the tops of the support rods (65) on both sides are fixedly connected to the same horizontal plate (66).

6. A portable agricultural product quality and safety inspection device according to claim 5, characterized in that: The longitudinal cross-section of the limiting guide groove (6) is in the shape of a convex letter, and the shape and size of the limiting guide block (61) are compatible with the limiting guide groove (6).

7. A portable agricultural product quality and safety testing device according to claim 6, characterized in that: The position of the transverse plate (66) corresponds to the rubber bag (46), and the transverse plate (66) is movable and slidably connected to the surface of the rubber bag (46). The top position of the rubber bag (46) and the top position of the limiting guide block (61) are both higher than the top surface position of the top cover (2), and the bottom surface of the transverse plate (66) and the top of the limiting guide block (61) are spaced apart.

8. The portable agricultural product quality and safety testing device according to claim 1 is characterized in that: A limiting slide groove (7) is provided inside the machine body (1), and a bending plate (71) is slidably connected to the inner side surface of the limiting slide groove (7). A pressing roller (72) is rotatably connected to the side of the bending plate (71) close to the pressing plate (34). The position height of the pressing roller (72) corresponds to that of the pressing plate (34). The pressing roller (72) can push the pressing plate (34) to rotate and squeeze the folded test paper card. A spring groove is provided inside the machine body (1), and a squeezing spring (73) is fixedly connected to the inner wall of the spring groove. The squeezing spring (73) is fixedly connected to the bending plate (71), and the squeezing spring (73) is arranged on the side of the bending plate (71) close to the pressing plate (34).

9. The portable agricultural product quality and safety testing device according to claim 8, characterized in that: The body (1) is provided with a movable groove inside, a clamping block (74) located inside the movable groove is fixedly connected to the side of the bending plate (71), a translation groove is provided inside the body (1), a limiting rod (75) corresponding to the clamping block (74) is slidably connected inside the translation groove, a limiting straight surface (76) is provided on one side of the limiting rod (75), a guiding arc surface (77) is provided on the other side of the limiting rod (75), and a side of the translation groove away from the clamping block (74) is fixedly connected to the limiting rod (75). A pressure spring (78) is connected, and a push block (79) is fixedly connected to the surface of the limiting rod (75), and the push block (79) is slidably connected to the inner side surface of the translation groove. The limiting straight surface (76) is arranged on a side of the limiting rod (75) close to the pressure plate (34), and the positions of the limiting straight surface (76) and the guiding curved surface (77) correspond to the clamping block (74). When the clamping block (74) moves to squeeze the guiding curved surface (77), the clamping block (74) can push the limiting rod (75) to move into the inside of the translation groove.

10. The portable agricultural product quality and safety testing device according to claim 9, characterized in that: A drawer groove (8) is provided on the side of the machine body (1), a drawer box (81) is slidably connected to the inner side of the drawer groove (8), and a test paper card slot (82) and a storage slot (83) are provided inside the drawer box (81).

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