A cleaning device for grain and oil detector

Abstract

The present invention relates to the technical field of cleaning equipment, and in particular to a cleaning device for a grain and oil detector, comprising a support and a slide frame that slides up and down in the support, an electric push rod fixedly connected between the upper end of the slide frame and the support, a lifting platform fixedly connected to one end of the slide frame, and a holding cup fixedly connected to the upper side of the lifting platform located on the support. The cleaning device for a grain and oil detector provided by the present invention has a clever design so that the gas blown out by the air pump can accelerate the discharge of oil, thereby improving the speed of subsequent cleaning. During cleaning, the gas in the air pump can make the brush on the brush plate close to probes of different diameters, and can ensure that probes of various diameters are cleaned effectively, thereby improving the cleaning effect. After cleaning, the gas in the air pump can dry the holding cup and the probe, and the brush plate shrinks, which can make the brush head of the liquid stay away from the holding cup and the probe, thereby speeding up the drying speed.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, in particular to a cleaning equipment for a grain and oil detector. Background Art

[0002] Grain and oil is a general term for cereals, beans, oilseeds and their processed products and semi-finished products. Grain and oil need to be tested during the production process to measure whether the ingredients of grain and oil meet the standards. Most of the tests are carried out through grain and oil detectors. After the grain and oil testing device has tested the grain and oil, a large amount of oil stains will remain on the surface. If they are not cleaned, the subsequent testing of the testing equipment will be inaccurate.

[0003] A cleaning device for grain and oil testing equipment with publication number CN221620128U is disclosed. The detection probe on the detection equipment body is inserted into the interior of a hollow rod, and then a water pump is started to inject cleaning liquid into the inner wall of the hollow rod. The hollow rod is then driven to rotate by a motor, so that a brush cleans the detection probe on the detection equipment body.

[0004] In the above patent, the detection probe needs to be cleaned separately, but the container containing cooking oil also needs to be cleaned using other equipment or manually, thereby reducing the overall cleaning efficiency. Before cleaning the container containing cooking oil, the cooking oil needs to be poured out, but the pouring speed of more viscous grain and oil is slower, further reducing the overall cleaning efficiency. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a cleaning device for a grain and oil detector.

[0006] The present invention adopts the following technical scheme, a cleaning device for a grain and oil detector, comprising a support and a slide frame slidably arranged in the support, an electric push rod is fixedly connected between the upper end of the slide frame and the support, a lifting platform is fixedly connected to one end of the slide frame, a holding cup is fixedly connected to the upper side of the lifting platform located on the support, a socket is opened at the upper end of the support, an air pump is fixedly connected to the upper end of the support, and a liquid inlet pipe is connected to the upper end of the inner cavity of the holding cup, and further comprises:

[0007] A cleaning mechanism, used for cleaning and drying the inner cavity of the containing cup and the detector probe, wherein the cleaning mechanism is arranged at the upper end of the lifting platform;

[0008] The bottom cover is used to introduce grain, oil and cleaning mechanism, the bottom cover is rotatably arranged at the bottom end of the containing cup, a liquid guide tube is arranged at the center of the bottom cover, and the liquid guide tube is connected with the inner cavity of the containing cup;

[0009] A liquid shielding cover is used to prevent the impurities being cleaned from contacting the internal parts, and the liquid shielding cover is fixedly connected to the upper end of the lifting platform;

[0010] A rubber clamping block, used for clamping the detector probe, wherein the rubber clamping block is fixedly connected to the opening at the center of the upper end of the containing cup;

[0011] And a conversion mechanism is used to switch the cleaning mechanism between cleaning and drying, and to improve the air-drying efficiency and the cleaning effect.

[0012] As a further description of the above technical solution: Gear 1 is rotatably arranged at the center of the upper end of the lifting platform, gear 1 is meshingly connected with gear 2 on one side, and a motor is fixedly connected to the bottom end of gear 2, and the motor is fixedly connected to the upper end of the lifting platform, gear 3 is arranged at the center of the upper side of gear 1, the central axis of gear 3 is movably inserted in the inner center of gear 1, and the bottom end of the central axis of gear 3 is fixedly connected to the lifting platform, a plurality of groups of external teeth are meshingly connected to the side of gear 3, and a rotating column is fixedly connected to the center of each group of external teeth.

[0013] As a further description of the above technical scheme: the cleaning mechanism includes a rotating column, the bottom end of the rotating column is rotatably set on gear 1, the upper end of the rotating column extends to the upper side of the liquid shielding cover, brush plates are movably inserted on two opposite sides of the outer wall of the rotating column, and the brush plate is provided with a brush head on one side wall outside the rotating column, one end of the brush plate located in the rotating column is fixedly connected with a spring between the rotating column, and the other two opposite side outer walls of the rotating column are provided with air outlets, an insertion rod is movably inserted in the air outlet, a sliding rod is fixedly connected to the insertion rod, and the sliding rod is slidably set in the rotating column, one end of the sliding rod located in the rotating column is fixedly connected to a trapezoidal rod, the other end of the trapezoidal rod abuts against an extrusion rod, and the extrusion rod is slidably set on the trapezoidal rod, and the other end of the extrusion rod is fixedly connected to the brush plate.

[0014] As a further description of the above technical scheme: the conversion mechanism includes a fixed ring that abuts against the upper side of the rotating column, a rotating frame is rotatably arranged inside the fixed ring, and the rotating frame can slide up and down in the fixed ring, and lower pressure rings are provided on the inner and outer sides just above the rotating frame, and the lower pressure ring is fixedly connected to the upper end of the inner cavity of the holding cup, and an air outlet pipe is provided between the inner and outer lower pressure rings, and the air outlet pipe is connected to the blowing pump, a rotating block is rotatably arranged inside the bottom end of the rotating frame, and the lower end of the rotating block is rotatably arranged in the rotating column, a torsion spring is fixed between the outer wall of the upper end of the rotating block and the rotating column, an air guide groove is provided in the rotating block, the angle between the two openings at the bottom of the air guide groove is 180 degrees, and the bottom end of the air guide groove faces the cavity between the brush plate and the rotating column, a lower pressure rod is fixedly connected to the bottom end of the rotating frame, and the bottom end of the lower pressure rod abuts against an inclined surface slip ring, and the inclined surface slip ring is arranged inside the upper end of the rotating block.

[0015] As a further description of the above technical solution: a plurality of the air outlet holes and the insertion rods are arranged at equal intervals up and down.

[0016] As a further description of the above technical solution: the angle between adjacent brush plates and sliding rods is ninety degrees.

[0017] As a further description of the above technical solution: the inclined surface slip ring is an annular structure, and an inclined sliding surface is provided on the upper end of the inclined surface slip ring.

[0018] As a further description of the above technical solution: there are two inclined plane slip rings, which are arranged in a ring shape with equal intervals, and the arc of the inclined plane slip ring is ninety degrees.

[0019] The present invention provides a cleaning device for a grain and oil detector by improvement, which has the following improvements and advantages compared with the prior art:

[0020] First, after cleaning, the gas in the air pump can dry the cup and the probe, and the brush plate shrinks, which can keep the liquid brush head away from the cup and the probe, thereby speeding up the drying process. The gas can be sprayed more evenly through the rotation of the rotating column, further improving the drying effect and speed.

[0021] Second, when the rotating frame contacts the lower pressure ring, the cleaning liquid is introduced into the inner cavity of the containing cup, and the gas in the air outlet pipe is introduced into the air guide groove from the rotating frame, and then the gas in the air guide groove enters the cavity where the spring is located, and then the two brush plates move outward in opposite directions. When the brush on the brush plate is in close contact with the probe or the inner wall of the container, the brush plate stops moving, and then it can adapt to probes of different diameters and ensure the cleaning effect of probes of various diameters;

[0022] Thirdly, after the gas enters the inner cavity of the cup, it can accelerate the discharge of grain and oil in the middle and lower part of the inner cavity of the cup, preventing the grain and oil from being too viscous and pouring out too slowly, thereby reducing the overall cleaning efficiency. Each rotating column can rotate while revolving, thereby increasing the cleaning effect, and can clean the detected probe and the inner wall of the container at the same time, which is more efficient.

[0023] In summary, through the ingenious design, the gas blown out by the air pump can accelerate the oil discharge, thereby improving the speed of subsequent cleaning. During cleaning, the gas in the air pump can make the brush on the brush plate close to the probes of different diameters, and can ensure the cleaning effect of probes of various diameters, thereby improving the cleaning effect. After cleaning, the gas in the air pump can dry the holding cup and the probe, and the brush plate shrinks, which can make the brush head of the liquid away from the holding cup and the probe, thereby speeding up the drying speed, and the gas can be sprayed more evenly through the rotation of the rotating column, further improving the drying effect and speed;

[0024] The gas in the air pump can improve the cleaning effect of the cleaning mechanism, and the cleaning mechanism can make the gas in the air pump spray out more evenly, achieving a mutually reinforcing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 A schematic structural diagram of a grain and oil detector cleaning device provided by an embodiment of the present invention;

[0027] Figure 2 A three-dimensional cross-sectional view of a support provided by an embodiment of the present invention;

[0028] Figure 3 A longitudinal stereoscopic cross-sectional view of a rotating column provided in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a brush plate provided in an embodiment of the present invention;

[0030] Figure 5 A transverse stereoscopic cross-sectional view of a rotating column provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the structure of an inclined surface slip ring provided in an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the structure of an extrusion rod provided in an embodiment of the present invention;

[0033] Figure 8 for Figure 2 The enlarged view of point A in the middle;

[0034] Fig. 9 for Figure 3 Enlarged view of point B in the middle.

[0035] In the figure: 1. support; 2. lifting platform; 3. liquid shielding cover; 4. cleaning mechanism; 41. rotating column; 42. brush plate; 43. spring; 44. air outlet; 45. sliding rod; 46. inserting rod; 47. trapezoidal rod; 48. squeezing rod; 5. holding cup; 6. blowing pump; 7. socket; 8. liquid guide tube; 9. sliding frame; 10. bottom cover; 11. gear one; 12. electric push rod; 13. gear two; 14. motor; 15. gear three; 16. external gear; 17. rubber clamping block; 18. conversion mechanism; 181. fixing ring; 182. lower pressure ring; 183. rotating frame; 184. lower pressure rod; 185. air guide groove; 186. torsion spring; 187. inclined sliding ring; 188. rotating block; 19. air outlet pipe; 20. liquid inlet pipe. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0037] See also Figure 1 - Fig. 9 The embodiment of the present invention provides a technical solution: a cleaning device for a grain and oil detector, comprising a support 1 and a slide 9 slidably arranged in the support 1, an electric push rod 12 is fixedly connected between the upper end of the slide 9 and the support 1, a lifting platform 2 is fixedly connected to one end of the slide 9, a holding cup 5 is fixedly connected to the upper side of the lifting platform 2 located on the support 1, a socket 7 is opened at the upper end of the support 1, an air pump 6 is fixedly connected to the upper end of the support 1, and a liquid inlet pipe 20 is connected to the upper end of the inner cavity of the holding cup 5, and further comprising:

[0038] A cleaning mechanism 4 is used to clean and dry the inner cavity of the containing cup 5 and the detector probe, and the cleaning mechanism 4 is arranged at the upper end of the lifting platform 2;

[0039] The bottom cover 10 is used to introduce grain, oil and the cleaning mechanism 4. The bottom cover 10 is rotatably arranged at the bottom end of the containing cup 5. A liquid guide tube 8 is arranged at the center of the bottom cover 10, and the liquid guide tube 8 is connected to the inner cavity of the containing cup 5.

[0040] The liquid shielding cover 3 is used to prevent the impurities being cleaned from contacting the internal parts, and the liquid shielding cover 3 is fixedly connected to the upper end of the lifting platform 2;

[0041] A rubber clamping block 17 is used to clamp the detector probe, and the rubber clamping block 17 is fixedly connected to the opening at the center of the upper end of the containing cup 5;

[0042] And a conversion mechanism 18 is used to switch the cleaning mechanism 4 between cleaning and drying, and to improve the air-drying efficiency and cleaning effect.

[0043] Specifically, through ingenious design, the gas blown out by the air pump 6 can accelerate the oil discharge, thereby improving the speed of subsequent cleaning. During cleaning, the gas in the air pump 6 can make the brush on the brush plate 42 close to the probes of different diameters, and can ensure the cleaning effect of probes of various diameters, thereby improving the cleaning effect. After cleaning, the gas in the air pump 6 can dry the holding cup 5 and the probe, and the brush plate 42 shrinks, which can make the brush head of the liquid away from the holding cup 5 and the probe, thereby speeding up the drying speed, and the gas can be sprayed more evenly through the rotation of the rotating column 41, further improving the drying effect and speed.

[0044] The gas in the air pump 6 can improve the cleaning effect of the cleaning mechanism 4, and the cleaning mechanism 4 can make the gas in the air pump 6 spray out more evenly, achieving a mutually reinforcing effect.

[0045] In another embodiment provided by the present invention, a gear 11 is rotatably provided at the center of the upper end of the lifting platform 2, a gear 2 13 is meshedly connected to one side of the gear 11, and a motor 14 is fixedly connected to the bottom end of the gear 2 13, and the motor 14 is fixedly connected to the upper end of the lifting platform 2, a gear 3 15 is provided at the center of the upper side of the gear 11, the central axis of the gear 3 15 is movably inserted in the inner center of the gear 11, and the bottom end of the central axis of the gear 3 15 is fixedly connected to the lifting platform 2, and a plurality of groups of external teeth 16 are meshedly connected to the side of the gear 3 15, and a rotating column 41 is fixedly connected to the center of each group of external teeth 16.

[0046] The cleaning mechanism 4 includes a rotating column 41, the bottom end of which is rotatably arranged on the gear 11, the upper end of the rotating column 41 extends to the upper side of the liquid shielding cover 3, and brush plates 42 are movably inserted on two opposite sides of the outer wall of the rotating column 41, and a brush head is provided on the side wall of the brush plate 42 located outside the rotating column 41, and a spring 43 is fixedly connected between one end of the brush plate 42 located in the rotating column 41 and the rotating column 41, and the outer walls of the other two opposite sides of the rotating column 41 are provided with air outlets 44, and an insertion rod 46 is movably inserted in the air outlet 44, and a sliding rod 45 is fixedly connected to the insertion rod 46, and the sliding rod 45 is slidably arranged in the rotating column 41, and the one end of the sliding rod 45 located in the rotating column 41 is fixedly connected to a trapezoidal rod 47, and the other end of the trapezoidal rod 47 abuts against an extrusion rod 48, and the extrusion rod 48 is slidably arranged on the trapezoidal rod 47, and the other end of the extrusion rod 48 is fixedly connected to the brush plate 42.

[0047] A plurality of air outlet holes 44 and insertion rods 46 are arranged at equal intervals vertically.

[0048] The included angle between adjacent brush plates 42 and slide bars 45 is ninety degrees.

[0049] Specifically, after the gas enters the inner cavity of the containing cup 5, it can promote the accelerated discharge of grain and oil in the middle and lower part of the inner cavity of the containing cup 5 to prevent the grain and oil from being too viscous and pouring out too slowly, thereby reducing the overall cleaning efficiency. Each rotating column 41 can rotate simultaneously while revolving, thereby increasing the cleaning effect, and can clean the detected probe and the inner wall of the container at the same time, which is more efficient.

[0050] In another embodiment provided by the present invention, the conversion mechanism 18 includes a fixed ring 181 that abuts against the upper side of the rotating column 41, a rotating frame 183 is rotatably arranged inside the fixed ring 181, and the rotating frame 183 can slide up and down in the fixed ring 181, and a lower pressure ring 182 is arranged on both the inner and outer sides just above the rotating frame 183, and the lower pressure ring 182 is fixedly connected to the upper end of the inner cavity of the holding cup 5, an air outlet pipe 19 is arranged between the inner and outer lower pressure rings 182, and the air outlet pipe 19 is connected to the blowing pump 6, and a rotating frame 183 is rotatably arranged inside the bottom end of the rotating frame 183. Block 188, and the lower end of the rotating block 188 is rotatably set in the rotating column 41, a torsion spring 186 is fixedly connected between the outer wall of the upper end of the rotating block 188 and the rotating column 41, an air guide groove 185 is provided in the rotating block 188, the angle between the two openings at the bottom of the air guide groove 185 is 180 degrees, the bottom end of the air guide groove 185 faces the cavity between the brush plate 42 and the rotating column 41, a downward pressure rod 184 is fixedly connected to the bottom end of the rotating frame 183, and the bottom end of the downward pressure rod 184 abuts against an inclined slip ring 187, and the inclined slip ring 187 is set inside the upper end of the rotating block 188.

[0051] The inclined surface slip ring 187 is an annular structure, and an inclined surface is formed at the upper end of the inclined surface slip ring 187 .

[0052] There are two inclined plane slip rings 187 , which are arranged in a ring shape with equal intervals, and the arc of the inclined plane slip ring 187 is ninety degrees.

[0053] Specifically, during cleaning, the gas in the air pump 6 can make the brush on the brush plate 42 fit closely to probes of different diameters, and can ensure that probes of various diameters are cleaned effectively, thereby improving the cleaning effect. After cleaning, the gas in the air pump 6 can dry the holding cup 5 and the probe, and the brush plate 42 shrinks, which can make the brush head of the liquid stay away from the holding cup 5 and the probe, thereby speeding up the drying speed, and the gas can be sprayed more evenly through the rotation of the rotating column 41, further improving the drying effect and speed.

[0054] Working principle: Before use, the grain and oil are introduced into the holding cup 5 through the liquid inlet pipe 20, and the grain and oil are not filled up in the holding cup 5. When using the device, the detector probe is first inserted into the holding cup 5 from the socket 7, and the outer wall of the probe is clamped by the rubber clamping block 17, and then the value is detected. After the detection, the liquid guide tube 8 is opened to allow the grain and oil to flow out of the liquid guide tube 8. During this period, the air pump 6 is turned on to allow the gas to enter the inner cavity of the holding cup 5, which can promote the grain and oil in the middle and lower part of the inner cavity of the holding cup 5 to be discharged faster, so as to prevent the grain and oil from being too viscous and pouring out slowly, thereby reducing the The overall cleaning efficiency is low. After discharge, the bottom cover 10 is opened, and the electric push rod 12 is started to move the slide 9, the lifting platform 2 and the cleaning mechanism 4 upward, so that the rotating frame 183 at the top of the rotating column 41 is in conflict with the lower pressure ring 182, and then the motor 14 is started. Through the transmission of the motor 14, the gear 2 13, the gear 1 11, the external gear 16, the gear 3 15 and the rotating column 41, each rotating column 41 can rotate at the same time while revolving, thereby increasing the cleaning effect, and the detected probe and the inner wall of the container can be cleaned at the same time, which is more efficient.

[0055] When the rotating frame 183 and the lower pressure ring 182 collide with each other, the cleaning liquid is introduced from the liquid inlet pipe 20 into the inner cavity of the containing cup 5, and the gas in the gas outlet pipe 19 is introduced from the rotating frame 183 into the gas guide groove 185, and then the gas in the gas guide groove 185 enters the cavity where the spring 43 is located, and then the two brush plates 42 move outward in opposite directions. When the brush on the brush plate 42 is in close contact with the probe or the inner wall of the container, the brush plate 42 stops moving, and then it can adapt to probes of different diameters and ensure the cleaning effect of probes of various diameters;

[0056] When cleaning is completed, the slide 9 and the rotating column 41 are further moved upward by the electric push rod 12, so that the lower pressure ring 182 moves the rotating frame 183 and the lower pressure rod 184 downward, and the inclined sliding ring 187 is squeezed to drive the rotating block 188 to rotate ninety degrees, so that the gas in the air guide groove 185 no longer enters the cavity where the spring 43 is located, and the brush plate 42 shrinks inwardly under the action of the spring 43. When the brush plate 42 shrinks, the sliding rod 45 will also shrink at the same time, and the insertion rod 46 will be separated from the air outlet 44, so that the gas in the subsequent air guide groove 185 is ejected from the air outlet 44 to dry the inner wall of the holding cup 5 and the probe. When the insertion rod 46 is in the air outlet 44, it can prevent the liquid from entering the rotating column 41 during cleaning. When drying, the brush plate 42 shrinks, which can make the brush head of the liquid away from the holding cup 5 and the probe, thereby speeding up the drying speed, and the gas can be made to be ejected more evenly through the rotation of the rotating column 41, further improving the drying effect and speed;

[0057] Through the ingenious design, the gas blown out by the air pump 6 can accelerate the oil discharge, thereby improving the speed of subsequent cleaning. During cleaning, the gas in the air pump 6 can make the brush on the brush plate 42 close to the probes of different diameters, and can ensure the cleaning effect of probes of various diameters, thereby improving the cleaning effect. After cleaning, the gas in the air pump 6 can dry the containing cup 5 and the probe, and the brush plate 42 shrinks, which can make the brush head of the liquid away from the containing cup 5 and the probe, thereby speeding up the drying speed, and the gas can be sprayed more evenly through the rotation of the rotating column 41, further improving the drying effect and speed.

[0058] The gas in the air pump 6 can improve the cleaning effect of the cleaning mechanism 4, and the cleaning mechanism 4 can make the gas in the air pump 6 spray out more evenly, achieving a mutually reinforcing effect.

[0059] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cleaning device for a grain and oil detector, comprising a support (1) and a slide (9) slidably arranged in the support (1), an electric push rod (12) being fixedly connected between the upper end of the slide (9) and the support (1), a lifting platform (2) being fixedly connected to one end of the slide (9), a holding cup (5) being fixedly connected to the upper side of the lifting platform (2) located on the support (1), a socket (7) being provided at the upper end of the support (1), an air pump (6) being fixedly connected to the upper end of the support (1), and a liquid inlet pipe (20) being connected to the upper end of the inner cavity of the holding cup (5), characterized in that: Also includes: A cleaning mechanism (4) is used for cleaning and drying the inner cavity of the containing cup (5) and the detector probe, wherein the cleaning mechanism (4) is arranged at the upper end of the lifting platform (2), and the cleaning mechanism (4) comprises a rotating column (41), the bottom end of the rotating column (41) is rotatably arranged on a gear (11), the upper end of the rotating column (41) extends to the upper side of the liquid shielding cover (3), brush plates (42) are movably inserted on two opposite sides of the outer wall of the rotating column (41), and a brush head is arranged on a side wall of the brush plate (42) located outside the rotating column (41), and one end of the brush plate (42) located inside the rotating column (41) is in contact with the rotating column (41). ) are fixedly connected with a spring (43), the other two opposite side outer walls of the rotating column (41) are each provided with an air outlet (44), an insertion rod (46) is movably inserted in the air outlet (44), a sliding rod (45) is fixedly connected to the insertion rod (46), and the sliding rod (45) is slidably arranged in the rotating column (41), one end of the sliding rod (45) located in the rotating column (41) is fixedly connected with a trapezoidal rod (47), the other end of the trapezoidal rod (47) is in contact with an extrusion rod (48), and the extrusion rod (48) is slidably arranged on the trapezoidal rod (47), and the other end of the extrusion rod (48) is fixedly connected to the brush plate (42); A bottom cover (10) is used to introduce grain, oil and the cleaning mechanism (4), the bottom cover (10) being rotatably disposed at the bottom end of the containing cup (5), a liquid guide tube (8) being disposed at the center of the bottom cover (10), and the liquid guide tube (8) being in communication with the inner cavity of the containing cup (5); A liquid shielding cover (3) is used to prevent impurities being cleaned from contacting internal parts, and the liquid shielding cover (3) is fixedly connected to the upper end of the lifting platform (2); A rubber clamping block (17) for clamping the detector probe, the rubber clamping block (17) being fixedly connected to an opening at the center of the upper end of the containing cup (5); and a conversion mechanism (18) for switching the cleaning mechanism (4) between cleaning and drying, and improving the drying efficiency and cleaning effect, the conversion mechanism (18) comprising a fixed ring (181) abutting against the upper side of the rotating column (41), a rotating frame (183) being rotatably arranged inside the fixed ring (181), and the rotating frame (183) being able to slide up and down inside the fixed ring (181), a lower pressure ring (182) being arranged on both inner and outer sides just above the rotating frame (183), and the lower pressure ring (182) being fixedly connected to the upper end of the inner cavity of the containing cup (5), an air outlet pipe (19) being arranged between the inner and outer lower pressure rings (182), and the air outlet pipe (19) being connected to the air pump (6), and the rotating frame (183) being arranged on the inner and outer sides of the rotating frame (183). A rotating block (188) is rotatably arranged inside the bottom end of the rotating frame (183), and the lower end of the rotating block (188) is rotatably arranged inside the rotating column (41), a torsion spring (186) is fixedly connected between the outer wall of the upper end of the rotating block (188) and the rotating column (41), an air guide groove (185) is arranged inside the rotating block (188), the angle between the two openings at the bottom of the air guide groove (185) is 180 degrees, the bottom end of the air guide groove (185) faces the cavity between the brush plate (42) and the rotating column (41), a lower pressure rod (184) is fixedly connected to the bottom end of the rotating frame (183), and the bottom end of the lower pressure rod (184) abuts against an inclined surface slip ring (187), and the inclined surface slip ring (187) is arranged inside the upper end of the rotating block (188).

2. A cleaning device for a grain and oil detector according to claim 1, characterized in that: A gear 1 (11) is rotatably arranged at the center of the upper end of the lifting platform (2), a side of the gear 1 (11) is meshedly connected with a gear 2 (13), and a motor (14) is fixedly connected to the bottom end of the gear 2 (13), and the motor (14) is fixedly connected to the upper end of the lifting platform (2). A gear 3 (15) is arranged at the center of the upper side of the gear 1 (11), and the central axis of the gear 3 (15) is movably inserted at the inner center of the gear 1 (11), and the bottom end of the central axis of the gear 3 (15) is fixedly connected to the lifting platform (2), and a plurality of groups of external teeth (16) are meshedly connected to the side of the gear 3 (15), and a rotating column (41) is fixedly connected to the center of each group of external teeth (16).

3. A cleaning device for a grain and oil detector according to claim 1, characterized in that: A plurality of the air outlet holes (44) and the insertion rods (46) are arranged at equal intervals vertically.

4. The cleaning device for a grain and oil detector according to claim 1, characterized in that: The included angle between adjacent brush plates (42) and slide bars (45) is ninety degrees.

5. The cleaning device for a grain and oil detector according to claim 1, characterized in that: The inclined surface slip ring (187) is an annular structure, and an inclined surface is provided at the upper end of the inclined surface slip ring (187).

6. A cleaning device for a grain and oil detector according to claim 1, characterized in that: Two inclined surface slip rings (187) are provided, and the two inclined surface slip rings (187) are arranged in a ring shape at equal intervals, and the arc of the inclined surface slip ring (187) is ninety degrees.

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