Directional sampling detection device for agricultural products

Abstract

The utility model relates to the technical field of agricultural product detection, and discloses an agricultural product directional sampling detection device which comprises a detection box, a detection box is arranged in the detection box, a detection head located above the detection box is fixedly installed in the detection box, and the upper end of the detection head is connected with a pump body located on the left side of the detection box through a pipeline. The left side of the pump body is connected with a communicating pipe through a pipeline flange, a filter plate is detachably connected into the communicating pipe, and a sealing cover located above the filter plate is movably installed at the upper end of the communicating pipe. The detection box, the crushing box, the cleaning box, the communicating pipe, the filter plate, the sealing cover and the spring buckle are matched, the spring buckle is arranged, the filter plate is fixed in the communicating pipe, the connecting mode of the spring buckle and the communicating pipe is changed, the step of disassembling and assembling the filter plate from the communicating pipe is simplified, and the working efficiency is improved. And the filter plate is cleaned after being taken out from the communicating pipe, so that the filter plate always circulates the detection liquid.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product testing technology, specifically to a targeted sampling and testing device for agricultural products. Background Technology

[0002] Pesticide residues refer to the total amount of pesticide parent material, derivatives, metabolites, degradation products, and impurities remaining in the environment, organisms, and food after pesticide use. Consuming food containing large amounts of highly toxic or extremely toxic pesticide residues can lead to acute poisoning in humans and animals. Long-term consumption of agricultural products with excessive pesticide residues may not cause acute poisoning, but it can cause chronic poisoning in humans and animals, leading to diseases, inducing cancer, and even affecting future generations. To avoid the harm caused to human health by pesticide residues on agricultural products, pesticide testing is required after agricultural products are collected.

[0003] However, pesticide detection on agricultural products involves pulverizing the agricultural products and then testing the resulting solution. To avoid interference from particulate matter, the existing method for removing particulate matter from the test solution is to install a filter plate inside the pipeline. However, when the mixture of test solution and particulate matter passes through the filter plate, although the filter plate can block the particulate matter in the mixture, the particulate matter in the mixture can also easily get stuck in the filter holes of the filter plate. As the area of ​​blockage in the filter holes on the filter plate continues to expand, it will reduce the separation effect of the filter plate on the particulate matter in the mixture, and may even affect the normal flow of the test solution from the filter plate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a targeted sampling and testing device for agricultural products. It has the advantages of facilitating the replacement of the filter plate for separating liquid and particulate matter in the detection solution, maintaining the continuous flow of the detection solution from the filter plate, and simplifying the disassembly and assembly steps of the filter plate in the connecting pipe, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a targeted sampling and testing device for agricultural products, including a testing box, inside which a testing container is provided, and a testing head fixedly installed above the testing container inside the testing box. The upper end of the testing head is connected to a pump body located on the left side of the testing box via a pipe pipe. The left side of the pump body is connected to a connecting pipe via a pipe flange. A filter plate is detachably connected inside the connecting pipe. A cover is movably installed above the filter plate at the upper end of the connecting pipe. A spring clip for connecting the connecting pipe is provided on the right side of the cover. A crushing box located on the left side of the filter plate is fixedly installed at the left end of the connecting pipe. A screw conveyor is connected to the upper end of the crushing box via a pipe pipe, and a washing box is connected to the left end of the screw conveyor via a pipe pipe.

[0006] Preferably, an inlet pipe is fixedly installed on the left side of the pump body, and the end of the inlet pipe away from the pump body is connected to the right flange of the connecting pipe. An outlet pipe is fixedly installed on the upper end of the pump body, and the end of the outlet pipe away from the pump body passes through the top of the detection box and is fixedly connected to the upper end of the detection head. A base is fixedly installed on the lower end of the pump body, and the end of the base away from the pump body is fixedly connected to the left side of the detection box.

[0007] Preferably, sleeve rods are fixedly installed on the front and rear sides of the upper end face of the cover, and a spring is fixedly connected to the inner wall of each sleeve rod. A disc is fixedly installed at the lower end of the spring, and a round rod is fixedly connected to the end of the disc away from the spring. A pressure plate located below the connecting pipe and used to press the filter plate is fixedly installed at the lower end of the round rod. A fixing rod for installing a spring clip is fixedly installed on the right side of the cover. A locking block is detachably connected to the end of the fixing rod away from the cover through the spring clip, and the lower end of the locking block is fixedly connected to the upper end face of the connecting pipe.

[0008] Preferably, a drive motor is fixedly installed at the lower end of the crushing box, and the output shaft of the drive motor passes through the bottom of the crushing box and is fixedly connected to a rotating shaft. Several blades are distributed sequentially from top to bottom on the outer wall of the rotating shaft, and a scraper located outside the blades is fixedly installed on the outer wall of the rotating shaft. A discharge pipe is fixedly connected to the lower end of the left side of the crushing box, and the upper end of the crushing box is connected to a screw conveyor through a pipe.

[0009] Preferably, a discharge pipe is fixedly installed at the right end of the screw conveyor, and the end of the discharge pipe away from the screw conveyor extends into the interior of the crushing box. A feed pipe is fixedly installed at the left end of the screw conveyor, and the end of the feed pipe away from the screw conveyor is fixedly connected to the lower end of the cleaning box. A frame is fixedly installed on the front and back of the screw conveyor respectively.

[0010] Preferably, a funnel is fixedly installed at the lower end of the cleaning tank, and the end of the funnel away from the cleaning tank is fixedly connected to the upper end of the feed pipe. A drain pipe is fixedly installed on the left side of the funnel. A support frame located above the funnel is fixedly connected to the bottom of the inner wall of the cleaning tank. A cleaning roller is rotatably connected to the upper end of the support frame. A rotating component located above the cleaning tank is fixedly installed at the end of the cleaning roller away from the support frame. A tank cover located outside the rotating component is movably installed at the upper end of the cleaning tank. An electric push rod is fixedly installed on the back of the tank cover, and the lower end of the electric push rod is fixedly connected to the back of the cleaning tank.

[0011] Preferably, the rotating assembly includes a driven gear and a driving gear, with driven gears meshing on the left and right sides of the driving gear, the driving gear being fixedly connected to the lower end of the output shaft of the rotary motor, and the inner walls of the driven gears on the left and right sides being connected to the upper flanges of the cleaning rollers on the left and right sides, respectively.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model utilizes the cooperation between the detection box, crushing box, cleaning box, connecting pipe, filter plate, cover and spring buckle to fix the filter plate in the connecting pipe. By changing the connection method between the spring buckle and the connecting pipe, the disassembly and assembly steps of the filter plate from the connecting pipe are simplified. After the filter plate is removed from the connecting pipe, it is cleaned, thereby maintaining the continuous flow of the detection liquid through the filter plate.

[0014] 2. This utility model utilizes the cooperation between the connecting pipe, filter plate, cover, pressure plate, and spring. By setting up the pressure plate, the filter plate is pressed into the connecting pipe. The compression and rebound of the spring drives the pressure plate to move inside the cover, so that the pressure plate can press the filter plate into the connecting pipe, thereby strengthening the stability of the filter plate in the connecting pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Rear view diagram;

[0017] Figure 3 This is a schematic diagram of the internal structure of the pulverizing box of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the box cover of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the connecting tube of this utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the spring buckle of this utility model;

[0021] Figure 7 This utility model Figure 6 A magnified view of point A;

[0022] Figure 8 This is a schematic diagram of the internal structure of the cap of this utility model;

[0023] Figure 9 This utility model Figure 8 An enlarged view of point B;

[0024] Figure 10 This is a schematic diagram of the cleaning roller of this utility model.

[0025] In the diagram: 1. Detection box; 2. Detection housing; 3. Detection head; 4. Pump body; 5. Connecting pipe; 6. Filter plate; 7. Cover; 8. Spring clip; 9. Crushing box; 10. Screw conveyor; 11. Cleaning box; 12. Inlet pipe; 13. Outlet pipe; 14. Base; 15. Sleeve rod; 16. Spring; 17. Disc; 18. Round rod; 19. Pressure plate; 20. Fixing rod; 21. Clamping block; 22. Drive motor; 23. Rotating shaft; 24. Blade; 25. Scraper; 26. Discharge pipe; 27. Outlet pipe; 28. Frame; 29. ​​Inlet pipe; 30. Funnel; 31. Drain pipe; 32. Support frame; 33. Cleaning roller; 34. Rotating assembly; 341. Driven gear; 342. Drive gear; 35. Box cover; 36. Rotary motor; 37. Electric push rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 , Figure 3 and Figure 6 A targeted sampling and testing device for agricultural products includes a testing box 1, a testing container 2 inside the testing box 1, a testing head 3 fixedly installed above the testing container 2 inside the testing box 1, a pump body 4 located on the left side of the testing box 1 connected to the upper end of the testing head 3 via a pipe, a connecting pipe 5 connected to the left side of the pump body 4 via a pipe flange, a filter plate 6 detachably connected inside the connecting pipe 5, a cover 7 movably installed above the filter plate 6 at the upper end of the connecting pipe 5, a spring clip 8 for connecting the connecting pipe 5 on the right side of the cover 7, a crushing box 9 located on the left side of the filter plate 6 fixedly installed at the left end of the connecting pipe 5, a screw conveyor 10 connected to the upper end of the crushing box 9, and a cleaning box 11 connected to the left end of the screw conveyor 10 via a pipe.

[0028] An inlet pipe 12 is fixedly installed on the left side of the pump body 4, and the end of the inlet pipe 12 away from the pump body 4 is connected to the right flange of the connecting pipe 5. An outlet pipe 13 is fixedly installed on the upper end of the pump body 4, and the end of the outlet pipe 13 away from the pump body 4 passes through the top of the detection box 1 and is fixedly connected to the upper end of the detection head 3. The detection liquid generated after the agricultural product is crushed flows from the connecting pipe 5 to the inside of the inlet pipe 12. The detection liquid entering the connecting pipe 5 is filtered through the filter plate 6. The filter plate 6 is set to separate the liquid and impurities in the detection liquid. The detection liquid after impurity removal enters the inside of the outlet pipe 13 after the pump body 4 is turned on through the inlet pipe 12. The detection liquid in the outlet pipe 13 drips from the detection head 3 to the detection box 2 for detection. A base 14 is fixedly installed on the lower end of the pump body 4, and the end of the base 14 away from the pump body 4 is fixedly connected to the left side of the detection box 1.

[0029] Please see Figure 2 , Figure 5 and Figure 8 Sleeve rods 15 are fixedly installed on the front and rear sides of the upper end face of the cover 7. A spring 16 is fixedly connected to the inner wall of each sleeve rod 15. The compression of the spring 16 presses the pressure plate 19 onto the filter plate 6, thereby fixing the filter plate 6 inside the connecting pipe 5. A disc 17 is fixedly installed at the lower end of the spring 16. A round rod 18 is fixedly connected to the end of the disc 17 away from the spring 16. A pressure plate 19 is fixedly installed at the lower end of the round rod 18, located below the connecting pipe 5, for pressing the filter plate 6. A fixing rod 20 for installing the spring clip 8 is fixedly installed on the right side of the cover 7. The end of the fixing rod 20 away from the cap 7 is detachably connected to the locking block 21 via a spring clip 8. The lower end of the locking block 21 is fixedly connected to the upper end face of the connecting pipe 5. When the filter plate 6 is replaced periodically, the spring clip 8 is pressed to move inwards towards the fixing rod 20 until the spring clip 8 is separated from the locking block 21. Then the fixing rod 20 can be removed from the locking block 21, which allows the cap 7 to be removed from the connecting pipe 5. The filter plate 6 can then be removed from the connecting pipe 5 for replacement or cleaning. This prevents the clogging of the filter holes on the filter plate 6 by particulate matter in the test liquid from interfering with the normal flow of the test liquid.

[0030] A drive motor 22 is fixedly installed at the lower end of the crushing box 9. The output shaft of the drive motor 22 passes through the bottom of the crushing box 9 and is fixedly connected to a rotating shaft 23. Several blades 24 are distributed from top to bottom on the outer wall of the rotating shaft 23. A scraper 25 located outside the blades 24 is fixedly installed on the outer wall of the rotating shaft 23. After the drive motor 22 is turned on, it drives the blades 24 and scraper 25 to rotate inside the crushing box 9 through the connection of the rotating shaft 23. The rotation of the blades 24 crushes the agricultural products, and the rotation of the scraper 25 scrapes the material inside the crushing box 9. A discharge pipe 26 is fixedly connected to the lower left side of the crushing box 9. The upper end of the crushing box 9 is connected to the screw conveyor 10 through a pipe.

[0031] Please see Figure 4 , Figure 7 , Figure 9 and Figure 10 A discharge pipe 27 is fixedly installed at the right end of the screw conveyor 10, and the end of the discharge pipe 27 away from the screw conveyor 10 extends into the interior of the crushing box 9. A feed pipe 29 is fixedly installed at the left end of the screw conveyor 10, and the end of the feed pipe 29 away from the screw conveyor 10 is fixedly connected to the lower end of the washing box 11. The rotation of the screw rod inside the screw conveyor 10 causes the agricultural products at the feed pipe 29 to move to the discharge pipe 27 and be transported into the interior of the crushing box 9 under the rotation of the screw rod inside the screw conveyor 10. A frame 28 is fixedly installed on the front and back of the screw conveyor 10 respectively.

[0032] A funnel 30 is fixedly installed at the lower end of the washing tank 11, and the end of the funnel 30 away from the washing tank 11 is fixedly connected to the upper end of the feed pipe 29. A drain pipe 31 is fixedly installed on the left side of the funnel 30. Impurities after brushing are discharged from the drain pipe 31 to the outside of the washing tank 11, and the washed agricultural products fall from the funnel 30 into the inside of the feed pipe 29. A support frame 32 located above the funnel 30 is fixedly connected to the bottom of the inner wall of the washing tank 11. A washing roller 33 is rotatably connected to the upper end of the support frame 32. The end of the washing roller 33 away from the support frame 32 is... A rotating assembly 34 is fixedly installed above the cleaning tank 11. A cover 35 is movably installed on the upper end of the cleaning tank 11 outside the rotating assembly 34. An electric push rod 37 is fixedly installed on the back of the cover 35, and the lower end of the electric push rod 37 is fixedly connected to the back of the cleaning tank 11. The cover 35 is placed on the cleaning tank 11 by retracting the output shaft inside the electric push rod 37. The cover 35 can be separated from the cleaning tank 11 by extending the output shaft inside the electric push rod 37, making it easy to add agricultural products and cleaning water into the cleaning tank 11.

[0033] The rotating assembly 34 includes a driven gear 341 and a driving gear 342. The driven gear 341 meshes with the left and right sides of the driving gear 342 respectively. The driving gear 342 is fixedly connected to the lower end of the output shaft of the rotary motor 36. The inner walls of the driven gears 341 on the left and right sides are connected to the upper flanges of the washing rollers 33 on the left and right sides respectively. When the rotary motor 36 is turned on, it drives the driving gear 342 to rotate. Since the left and right sides of the driving gear 342 mesh with the driven gears 341 respectively, the driving gear 342 rotates in a circle and drives the driven gears 341 on the left and right sides to rotate. While the driven gears 341 on the left and right sides rotate, they drive the washing rollers 33 to rotate through bolt connection. While the washing rollers 33 rotate inside the washing box 11, the agricultural products in the washing box 11 are washed by the washing rollers 33.

[0034] Working principle: In use, first, the agricultural product to be tested is added into the cleaning tank 11, then the cleaning solution is added into the cleaning tank 11. The power to the electric push rod 37 is turned on, and the retraction of the output shaft inside the electric push rod 37 closes the lid 35 onto the cleaning tank 11, causing the cleaning roller 33 to move into the cleaning tank 11. The bottom of the cleaning roller 33 is inserted into the support frame 32, maintaining a sealing effect during the cleaning process. The power to the rotary motor 36 is then turned on, driving the rotation of the drive gear 342. The left and right sides of the driving gear 342 mesh with the driven gear 341 respectively. When the driving gear 342 rotates in a circular motion, it drives the driven gears 341 on the left and right sides to rotate simultaneously. When the driven gears 341 on the left and right sides rotate, they drive the washing roller 33 to rotate simultaneously through bolt connection. When the washing roller 33 rotates inside the washing box 11, the agricultural products inside the washing box 11 are brushed by the washing roller 33. The impurities after brushing are discharged from the drain pipe 31 to the outside of the washing box 11, and the agricultural products after brushing and cleaning fall from the funnel 30 into the inside of the feed pipe 29.

[0035] Then, turn on the external power supply of the screw conveyor 10. The rotation of the screw rod inside the screw conveyor 10 causes the agricultural products at the feed pipe 29 to move to the discharge pipe 27 and be transported into the crushing box 9 under the rotation of the screw rod inside the screw conveyor 10.

[0036] Subsequently, the power supply of the drive motor 22 is turned on. After the drive motor 22 is turned on, it drives the blade 24 and scraper 25 to rotate in the crushing box 9 through the connection of the rotating shaft 23. The rotation of the blade 24 crushes the agricultural products, and the rotation of the scraper 25 scrapes the scraped material in the crushing box 9. The test liquid generated after the agricultural products are crushed flows from the connecting pipe 5 to the inside of the inlet pipe 12. The test liquid entering the connecting pipe 5 is filtered through the filter plate 6. The filter plate 6 is set to separate the liquid and impurities in the test liquid. The test liquid after impurity removal enters the inside of the outlet pipe 13 after the pump body 4 is turned on through the inlet pipe 12. The test liquid in the outlet pipe 13 drips from the test head 3 to the test box 2 for testing. Since the test box 2 is equipped with test strips that react with pesticides, the pesticide residue can be judged by comparing the color reaction of the test strips with the color card.

[0037] Finally, replace the filter plate 6 periodically. Press the spring clip 8 to move it inwards towards the fixing rod 20 until the spring clip 8 separates from the locking block 21. Then, remove the fixing rod 20 from the locking block 21. This allows the cap 7 to be removed from the connecting pipe 5. Replace or clean the filter plate 6 by removing it from the connecting pipe 5. This prevents the particles in the test liquid from clogging the filter holes on the filter plate 6 and interfering with the normal flow of the test liquid. After cleaning, reinstall the filter plate 6 inside the connecting pipe 5. Install the cap 7 on the connecting pipe 5. The spring clip 8 connects the fixing rod 20 and the locking block 21. The compression of the spring 16 presses the pressure plate 19 onto the filter plate 6, thus fixing the filter plate 6 inside the connecting pipe 5. The crushed material in the crushing box 9 is then discharged through the discharge pipe 26.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A targeted sampling and testing device for agricultural products, comprising a testing box (1), characterized in that: The inside of the test box (1) is a test box (2). Inside the test box (1) is a test head (3) located above the test box (2). The upper end of the test head (3) is connected to a pump body (4) located on the left side of the test box (1). The left side of the pump body (4) is connected to a connecting pipe (5) via a pipe flange. The inside of the connecting pipe (5) is detachably connected to a filter plate (6). The upper end of the connecting pipe (5) is movably installed with a cover (7) located above the filter plate (6). The right side of the cover (7) is provided with a spring buckle (8) for connecting the connecting pipe (5). The left end of the connecting pipe (5) is fixedly installed with a crushing box (9) located on the left side of the filter plate (6). The upper end of the crushing box (9) is connected to a screw conveyor (10). The left end of the screw conveyor (10) is connected to a cleaning box (11).

2. The targeted sampling and testing device for agricultural products according to claim 1, characterized in that: An inlet pipe (12) is fixedly installed on the left side of the pump body (4), and the end of the inlet pipe (12) away from the pump body (4) is connected to the right flange of the connecting pipe (5). An outlet pipe (13) is fixedly installed on the upper end of the pump body (4), and the end of the outlet pipe (13) away from the pump body (4) passes through the top of the detection box (1) and is fixedly connected to the upper end of the detection head (3). A base (14) is fixedly installed on the lower end of the pump body (4), and the end of the base (14) away from the pump body (4) is fixedly connected to the left side of the detection box (1).

3. The targeted sampling and testing device for agricultural products according to claim 1, characterized in that: Sleeves (15) are fixedly installed on the front and rear sides of the upper end face of the cover (7). A spring (16) is fixedly connected to the inner wall of each sleeve (15). A disc (17) is fixedly installed at the lower end of the spring (16). A round rod (18) is fixedly connected to the end of the disc (17) away from the spring (16). A pressure plate (19) located below the connecting pipe (5) and used to press the filter plate (6) is fixedly installed at the lower end of the round rod (18). A fixing rod (20) for installing a spring buckle (8) is fixedly installed on the right side of the cover (7). A locking block (21) is detachably connected to the end of the fixing rod (20) away from the cover (7) through the spring buckle (8). The lower end of the locking block (21) is fixedly connected to the upper end face of the connecting pipe (5).

4. The targeted sampling and testing device for agricultural products according to claim 1, characterized in that: A drive motor (22) is fixedly installed at the lower end of the crushing box (9). The output shaft of the drive motor (22) passes through the bottom of the crushing box (9) and is fixedly connected to a rotating shaft (23). Several blades (24) are distributed from top to bottom on the outer wall of the rotating shaft (23). A scraper (25) located outside the blades (24) is fixedly installed on the outer wall of the rotating shaft (23). A discharge pipe (26) is fixedly connected to the lower left side of the crushing box (9). The upper end of the crushing box (9) is connected to the screw conveyor (10) through a pipe.

5. The targeted sampling and testing device for agricultural products according to claim 4, characterized in that: The right end of the screw conveyor (10) is fixedly equipped with a discharge pipe (27), and the end of the discharge pipe (27) away from the screw conveyor (10) extends into the interior of the crushing box (9). The left end of the screw conveyor (10) is fixedly equipped with a feed pipe (29), and the end of the feed pipe (29) away from the screw conveyor (10) is fixedly connected to the lower end of the cleaning box (11). The front and back of the screw conveyor (10) are respectively fixedly equipped with frames (28).

6. The targeted sampling and testing device for agricultural products according to claim 5, characterized in that: A funnel (30) is fixedly installed at the lower end of the cleaning tank (11), and the end of the funnel (30) away from the cleaning tank (11) is fixedly connected to the upper end of the feed pipe (29). A drain pipe (31) is fixedly installed on the left side of the funnel (30). A support frame (32) located above the funnel (30) is fixedly connected to the bottom of the inner wall of the cleaning tank (11). A cleaning roller (33) is rotatably connected to the upper end of the support frame (32). A rotating component (34) located above the cleaning tank (11) is fixedly installed at the end of the cleaning roller (33) away from the support frame (32). A box cover (35) located outside the rotating component (34) is movably installed at the upper end of the cleaning tank (11). An electric push rod (37) is fixedly installed on the back of the box cover (35), and the lower end of the electric push rod (37) is fixedly connected to the back of the cleaning tank (11).

7. The targeted sampling and testing device for agricultural products according to claim 6, characterized in that: The rotating assembly (34) includes a driven gear (341) and a driving gear (342). The driven gear (341) is meshed with the left and right sides of the driving gear (342). The driving gear (342) is fixedly connected to the lower end of the output shaft of the rotary motor (36). The inner walls of the driven gears (341) on the left and right sides are connected to the upper flanges of the cleaning rollers (33) on the left and right sides, respectively.

Images