Tray cleaning device and cleaning method thereof

Abstract

The invention relates to the technical field of instrument cleaning devices, in particular to a tray cleaning device and a cleaning method thereof.The tray cleaning device comprises a cylindrical cleaning box, the upper portion and the lower portion of the cleaning box are open, and a rotating tray containing part used for containing a plurality of trays is arranged in the bottom of the cleaning box; and a cleaning part for washing and drying the plurality of rotating trays is arranged in the top of the cleaning box. The cleaning box is arranged and matched with the rotating table to hermetically place the trays, cleaning work is automatically completed under flushing of the cleaning parts, the infection risk of medical staff is reduced, and the subsequent self-disinfection time is shortened; by arranging the cleaning part, the rotating table drives the trays to pass through the spraying parts, meanwhile, the spraying pipes rotate automatically, liquid sprayed out of the nozzles can shift on the surfaces of the trays for flushing, and therefore it is guaranteed that the trays are comprehensively flushed.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument cleaning devices, in particular to a tray cleaning device and a cleaning method thereof. Background Art

[0002] The infection department is a department that treats various diseases caused by pathogenic microorganisms, and most of the patients it contacts are infectious to a certain extent. Therefore, the infection department has higher protection requirements for medical staff than ordinary departments. At the same time, the cleaning and disinfection of medical trays that need to be used by medical staff to enter the ward for nursing or medical examinations is also very important.

[0003] However, during the cleaning process of the tray, medical staff usually use gloves to clean it. The disinfectant will emit a very pungent smell, posing a potential threat to the respiratory health of medical staff and patients. In addition, liquid mixed with pathogens will splash during the cleaning process, increasing the infection risk of medical staff and the time for their own disinfection work. Summary of the invention

[0004] In order to overcome the defects in the prior art, the object of the present invention is to provide a tray cleaning device and a cleaning method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, on the one hand, the present invention provides a tray cleaning device, comprising a cylindrical cleaning box with upper and lower openings, a tray placing part for placing a plurality of trays and rotating is arranged in the bottom of the cleaning box, and a cleaning part for washing and drying the rotating trays is arranged in the top of the cleaning box; A tray placement opening is vertically provided on one side wall of the cleaning box, and the tray placement portion includes a rotating table arranged at the bottom of the tray placement opening and coaxially arranged with the cleaning box, a support cover which is sleeved with the bottom of the cleaning box and is used to support the rotating table, and a servo motor installed on the bottom surface of the support cover and coaxially connected to the rotating table; the top surface of the rotating table is radially provided with a plurality of slots at equal intervals, the wide sides of the trays stand up and engage with the slots, the inner wall of the cleaning box is symmetrically provided with water-blocking sheets which divide its inner cavity into two spaces for washing and drying, the water-blocking sheets are unfolded in an arc shape and are in sliding contact with the top edges and the outer edges of the two trays at the same time, a sealing sleeve which is in sliding contact with the inner edges of the trays is provided at the center of the top surface of the rotating table, and a plurality of water leakage holes are provided at the edge of the top surface of the support cover; the interior of the cleaning box is divided into two closed spaces by a pair of water-blocking sheets, a sealing sleeve and a plurality of trays; The cleaning part includes a water tank embedded in the top of the cleaning box, a plurality of spray parts suspended at the bottom edge of the water tank, and a water pump installed inside the water tank to pump liquid into the plurality of spray parts; the plurality of spray parts are evenly spaced and distributed on one side of a pair of water baffles, a heat dissipation cavity is provided on one side of the water tank and between the pair of water baffles, an electric heating pipe is embedded in the interior of the water tank, and both ends of the electric heating pipe extend into the heat dissipation cavity.

[0006] As a further improvement of the present technical solution, a plurality of water outlet pipes are embedded at the bottom edge of the water tank away from the heat dissipation cavity, and the spray cleaning component includes a nozzle that is movably connected to the water outlet pipe, and a plurality of nozzles that are tangent to and connected to the side wall of the nozzle. At least every four nozzles are distributed in a circular shape with equal intervals, and every four nozzles form a group and are distributed in equal intervals along the axial direction of the nozzle. The nozzle is flat-mouthed and its inner width is 1-2mm.

[0007] As a further improvement of the technical solution, the outer diameter of the rotating table is smaller than the inner diameter of the supporting cover, the bottom of the nozzle extends between the rotating table and the supporting cover, the bottom end of the nozzle is sleeved with a transmission gear, and the side wall of the rotating table is sleeved with a gear ring meshing with the transmission gear.

[0008] As a further improvement of the present technical solution, the top surface of the rotating table is conical and a chuck column is vertically embedded in the center of the chuck column. The chuck column is a column with a larger upper end and a smaller lower end, and is sleeved with a sealing sleeve. The slot points to the central axis of the chuck column, and the slot and the side wall of the chuck column are vertically arranged. The top outer wall of the chuck column is annular and has a plurality of clamping grooves at equal intervals. The positions of the plurality of clamping grooves and the plurality of clamping grooves are arranged one by one correspondingly. An elastic clip is embedded in the clamping groove, and the elastic clip is sleeved with the vertical upper end of the tray.

[0009] As a further improvement of the present technical solution, clamping strips are symmetrically embedded on both sides of the outer end of the clamping groove. The elastic clamp is made of PP material in a V-shape and has limiting grooves in the middle of its two outer sides. The limiting grooves are engaged with the clamping strips, and the bent end of the elastic clip faces the inner end of the clamping groove and is in sliding contact with an elastic ring.

[0010] As a further improvement of the present technical solution, the elastic ring is made of spring steel in an elliptical sheet shape, and its long axis in a natural state points to the bent end of the elastic clip. A sleeve frame is provided at the inner end of the elastic ring toward the clamping groove, and an insert strip which is sleeved with the sleeve frame is embedded in the inner end of the clamping groove.

[0011] As a further improvement of the technical solution, sliders are symmetrically provided on both sides of the bent end of the elastic clip, and sliding grooves are opened on both inner sides of the clamping groove. The sliding grooves are located below the top of the clamping strip and are clamped with the sliders.

[0012] As a further improvement of the technical solution, the outer wall of the cleaning box is fixedly provided with sliding bars above and below the dish placement opening, a sliding cover is slidably connected between a pair of sliding bars, and a silicone pad that is snap-fitted with the dish placement opening is bonded to the inner wall of the sliding cover.

[0013] As a further improvement of the present technical solution, the top inner wall of the cleaning box is provided with a ring platform for supporting the water tank, and the bottom of the cleaning box is provided with a recovery box. The recovery box is annular and its bottom surface is a conical surface with a downward convex middle part. A recovery port corresponding to the leakage hole is provided at the edge of the top surface of the recovery box, and a plurality of drainage ports are provided at the bottom of the inner wall of the recovery box; a connecting head is provided at the bottom center hole of the recovery box, and a water pipe is provided at the bottom end of the connecting head.

[0014] In another aspect, the present invention provides a pallet cleaning method, using the pallet cleaning device, comprising the following steps: S1. First open the tray placement opening, and stand the tray with its wide side facing downwards and insert it into the slot through the tray placement opening; S2, then start the servo motor to drive the rotating table to rotate an angle, so that the next card slot is turned to the tray placement port, and then the tray is inserted, and the operation is repeated until the tray is full; S3, start the servo motor and the water pump at the same time and connect the electric heating tube, the rotating table is driven to rotate and drive a number of trays to rotate in the washing box, and when passing through a number of spraying parts areas, they are washed; when passing through the area below the heat dissipation cavity, they are dried; S4, after the first tray rotates one circle on the rotating table, the servo motor is stopped, and then the tray placement port is opened to take out the tray; S5. After all the trays are taken out, the next batch of trays are cleaned according to the steps of S1 to S4.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The tray cleaning device and the cleaning method thereof, through the provided cleaning box and the rotating table, seal and place a plurality of trays, and automatically complete the cleaning work under the flushing of a plurality of cleaning parts, thereby reducing the infection risk of medical staff and shortening the subsequent self-disinfection time.

[0016] 2. The pallet cleaning device and the cleaning method thereof, through the cleaning part, the rotating table drives a plurality of pallets to pass through a plurality of spray washing parts, and the spray pipe also rotates, and then the liquid sprayed from the nozzle will be shifted and washed on the surface of the pallet, thereby ensuring that the pallet is fully washed.

[0017] 3. The tray cleaning device and the cleaning method thereof increase the cleaning and decontamination capability by heating the liquid in the water tank by energizing the electric heating tube; at the same time, the electric heating tube part placed in the heat dissipation cavity heats the other half of the space of the cleaning tank to dry the cleaned tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0019] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention.

[0020] Figure 2 This is one of the schematic diagrams of the overall internal assembly structure of the present invention.

[0021] Figure 3 This is the second schematic diagram of the overall internal assembly structure of the present invention.

[0022] Figure 4 It is a top view of the partial assembly state of the present invention.

[0023] Figure 5 It is a front view of the internal assembly of the cleaning box of the present invention.

[0024] Figure 6 It is a disassembled diagram of the cleaning box of the present invention.

[0025] Figure 7 It is a structural schematic diagram of a fully cut-away cleaning box of the present invention in a disassembled state.

[0026] Figure 8 It is a schematic diagram of the assembly structure of the tray placement part and a plurality of spray cleaning parts of the present invention.

[0027] Fig. 9 It is a schematic diagram of the assembly structure of the tray placement part of the present invention.

[0028] Fig.10 For the present invention Fig. 9 A is an enlarged structural diagram of FIG.

[0029] Fig.11 It is a schematic diagram of the elastic clip structure of the present invention.

[0030] Fig.12 It is a schematic diagram of the assembly structure of the spray cleaning part of the present invention.

[0031] Fig.13 It is the disassembled diagram of the water tank of the present invention.

[0032] The meaning of each number in the figure is: 100, cleaning box; 101, dish placement port; 102, slide bar; 103, ring platform; 104, wiring hole; 110, slide cover; 120, recycling box; 121, recycling port; 122, drainage port; 123, connector; 130, water-blocking sheet; 200, plate placement part; 210, rotating table; 211, card slot; 212, gear ring; 220, support cover; 221, water leakage hole; 230, servo motor; 240, clamping plate column; 241, clamping slot; 242, slide slot; 243, clamping strip; 244, inserting strip; 250, elastic clip; 251, limit slot; 252, slider; 253, elastic ring; 254, sleeve frame; 260, sealing sleeve; 300, cleaning unit; 310, water tank; 311, heat dissipation chamber; 312, electric heating tube; 313, water outlet pipe; 320, spraying part; 321, spray pipe; 322, nozzle; 323, transmission gear. DETAILED DESCRIPTION

[0033] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0034] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0035] See also Figure 1-Figure 13 As shown, the present invention provides a tray cleaning device, including a cylindrical cleaning box 100 with upper and lower openings, a ring bracket tightly sleeved on the bottom of the cleaning box 100, and a tempered glass embedded in the outer wall of the cleaning box 100 so as to clearly see the cleaning condition inside; a tray placing part 200 for placing a plurality of trays and rotating is arranged in the bottom of the cleaning box 100, and a cleaning part 300 for washing and drying the plurality of rotating trays is arranged in the top of the cleaning box 100; A tray placement opening 101 is vertically opened on one side wall of the cleaning box 100 for placing a tray; the tray placement part 200 includes a rotating table 210 arranged at the bottom of the tray placement opening 101 and coaxially arranged with the cleaning box 100, a support cover 220 sleeved with the bottom of the cleaning box 100 and used to support the rotating table 210, and a servo motor 230 installed on the bottom surface of the support cover 220 and coaxially connected with the rotating table 210; the support cover 220 is sleeved with the inner wall of the bottom of the cleaning box 100 and fixedly connected by bolts, thereby supporting the servo motor 230 to drive the rotating table 210 to rotate stably; the top surface of the rotating table 210 is radially opened with a plurality of slots 211 at equal intervals, and the wide side of the tray stands up and is engaged with the slots 211, so that the tray stands up and is cleaned from the front to the back; The inner wall of the cleaning box 100 is symmetrically provided with water-blocking sheets 130 which divide its inner cavity into two spaces, namely, washing and drying spaces. The water-blocking sheets 130 are made of silicone material, and have good sealing properties and are durable. The water-blocking sheets 130 are unfolded in an arc shape and simultaneously slide in contact with the top edges and the outer edges of the two trays. A sealing sleeve 260 is provided at the center of the top surface of the rotating table 210 which slides in contact with the inner edges of several trays, thereby forming an all-round seal. Thus, a pair of water-blocking sheets 130, sealing sleeves 260 and several trays are used to separate the interior of the cleaning box 100 into two closed spaces.

[0036] Specifically, the cleaning part 300 includes a water tank 310 embedded in the top of the cleaning box 100, a plurality of spraying parts 320 suspended at the bottom edge of the water tank 310, and a water pump installed inside the water tank 310 to pump liquid into the plurality of spraying parts 320; a mixture of disinfectant and water is stored in the water tank 310; the plurality of spraying parts 320 are evenly spaced and distributed on one side of a pair of water-isolating sheets 130; A heat dissipation cavity 311 is provided on one side of the water tank 310 and between a pair of water-isolating plates 130. An electric heating tube 312 is embedded in the water tank 310, and both ends of the electric heating tube 312 extend into the heat dissipation cavity 311. The electric heating tube 312 is energized to heat the liquid in the water tank 310, thereby increasing the cleaning and decontamination capabilities. At the same time, the electric heating tube 312 disposed in the heat dissipation cavity 311 heats the other half of the space of the cleaning box 100, thereby drying the cleaned tray.

[0037] Furthermore, a plurality of water outlet pipes 313 are embedded at the bottom edge of the water tank 310 away from the heat dissipation cavity 311, and a pipe connected to the plurality of water outlet pipes 313 is connected to the output end of the water pump; the spray cleaning member 320 includes a nozzle 321 movably sleeved with the water outlet pipe 313, and a plurality of nozzles 322 tangent to and connected with the side wall of the nozzle 321, at least four nozzles 322 are distributed in an annular manner with equal spacing, and each four nozzles 322 form a group and are distributed in an axial direction of the nozzle 321 with equal spacing, and the nozzles 322 are flat-mouthed and have an inner width of 1-2 mm; that is, the liquid pumped into the nozzle 321 is tangentially sprayed through the plurality of nozzles 322, and the front and back of the tray that is continuously rotating is washed; The outer diameter of the rotating table 210 is smaller than the inner diameter of the supporting cover 220, thereby forming an annular groove for collecting liquid. A plurality of leakage holes 221 are provided at the edge of the top surface of the supporting cover 220, so that the collected liquid leaks out of the cleaning box 100; the bottom of the spray pipe 321 extends between the rotating table 210 and the supporting cover 220, and the bottom end of the spray pipe 321 is sleeved with a transmission gear 323, and the side wall of the rotating table 210 is sleeved with a gear ring 212 meshing with the transmission gear 323; that is, while the rotating table 210 drives a plurality of trays to pass through a plurality of spraying parts 320, the spray pipe 321 also rotates, and then the liquid sprayed from the nozzle 322 will be displaced and washed on the surface of the tray, thereby ensuring that the tray is fully washed.

[0038] Furthermore, the top surface of the rotating table 210 is conical and a chuck column 240 is vertically embedded in the center. The conical surface of the rotating table 210 is conducive to the flushing liquid flowing into the annular groove to avoid liquid accumulation; the chuck column 240 is a column with a larger upper end and a smaller lower end, and is sleeved with a sealing sleeve 260. The sealing sleeve 260 is made of silicone material so that it can fit and seal with the side of the tray; the slot 211 points to the central axis of the chuck column 240, and the slot 211 and the side wall of the chuck column 240 are vertically arranged, that is, the tray is placed in an inclined clamping position, so that the liquid on its surface is concentrated to flow and gather in the annular groove.

[0039] Specifically, in order to make the tray clamped on the rotating table 210 more stably, a plurality of clamping grooves 241 are formed in a circular shape at equal intervals on the outer wall of the top end of the clamping column 240. The plurality of clamping grooves 241 are arranged in a one-to-one correspondence with the plurality of clamping grooves 211. An elastic clip 250 is embedded in the clamping groove 241. The elastic clip 250 is clamped and matched with the upper end of the tray, so that the tray is clamped in the clamping groove 211 more stably. Clamp strips 243 are symmetrically embedded on both sides of the outer end of the clamping groove 241. The elastic clamp 250 is made of PP material and is V-shaped. A limiting groove 251 is provided in the middle of the two outer sides. The limiting groove 251 is engaged with the clamp strip 243. The bent end of the elastic clamp 250 faces the inner end of the clamping groove 241 and is in sliding contact with an elastic ring 253. The elastic ring 253 is made of spring steel and is in an elliptical sheet shape. The long axis of the elastic ring 253 in the natural state points to the bent end of the elastic clamp 250. A sleeve frame 254 is provided at the inner end of the elastic ring 253 facing the clamping groove 241. The inner end of the clamping groove 241 is embedded with an insert strip 244 that is sleeved with the sleeve frame 254. When the tray is inserted into the slot 211 from the tray placement opening 101, until the elastic clip 250 is inserted into the top side of the tray, the elastic clip 250 is squeezed toward the inner end of the clip slot 241, so that the limiting slot 251 and the clamping strip 243 are engaged and limited, and the elastic clip 250 is compressed to clamp the tray; at the same time, the elastic ring 253 is squeezed to become a vertical long axis, thereby storing elastic potential energy; when taking out the tray, the tray is quickly pushed toward the inner end of the clamping slot 241, so that the limiting slot 251 and the clamping strip 243 are separated and slid off, and the tray is released, and under the action of the larger rebound force of the elastic ring 253, the elastic clip 250 is ejected out of the clamping slot 241, thereby bouncing the tray to expose the tray placement opening 101, and then it can be taken away.

[0040] Furthermore, slide blocks 252 are symmetrically provided on both sides of the bent end of the elastic clip 250, and slide grooves 242 are opened on both inner sides of the clamping groove 241. The slide grooves 242 are located below the top of the clamping strip 243 and are engaged with the slide blocks 252; so that the elastic clip 250 is limited in the clamping groove 241 to telescopically slide.

[0041] Furthermore, a sliding bar 102 is fixedly provided on the outer wall of the cleaning box 100 and located above and below the dish placement opening 101, and a sliding cover 110 is slidably connected between a pair of sliding bars 102, and the cross-section of the sliding bar 102 is an inverted L-shape, thereby limiting the sliding cover 110; a silicone pad that is snap-fitted with the dish placement opening 101 is bonded to the inner wall of the sliding cover 110 to play a sealing role.

[0042] It is worth mentioning that the top inner wall of the cleaning box 100 is provided with a ring platform 103 for supporting the water tank 310, and the side wall of the cleaning box 100 and one side of the heat dissipation cavity 311 are provided with a wiring hole 104 for passing the power cord of the electric heating tube 312 to connect to the external power supply; the bottom of the cleaning box 100 is provided with a recovery box 120, the recovery box 120 is annular and its bottom surface is a conical surface with a downward convex middle part, and a recovery port 121 corresponding to the leakage hole 221 is provided at the edge of the top surface of the recovery box 120, and a plurality of drainage ports 122 are provided at the bottom of the inner wall of the recovery box 120; so that the liquid in the annular groove flows into the recovery box 120 and then flows out from the plurality of drainage ports 122; the bottom center hole of the recovery box 120 is provided with a connector 123, and the bottom end of the connector 123 is provided with a water pipe, and the cleaned liquid can be discharged by leading the water pipe to the sewer.

[0043] The present invention also provides a pallet cleaning method, using the above pallet cleaning device, comprising the following steps: S1, first open the tray placement opening 101, and stand the tray with its wide side facing downward and insert it into the slot 211 through the tray placement opening 101; S2, then start the servo motor 230 to drive the rotating table 210 to rotate an angle, so that the next card slot 211 is rotated to the tray placement port 101, and then the tray is inserted, and the operation is repeated until the tray is full; S3, the servo motor 230 and the water pump are started at the same time, and the electric heating tube 312 is turned on, so that the rotating table 210 is driven to rotate and drive the plurality of trays to rotate in the washing box 100, and the trays are washed when passing through the plurality of spraying parts 320 areas; and are dried when passing through the area below the heat dissipation cavity 311; S4, after the first tray rotates one circle on the rotating table 210, the servo motor 230 is stopped, and then the tray placement port 101 is opened to take out the tray; S5. After all the trays are taken out, the next batch of trays are cleaned according to the steps of S1 to S4.

[0044] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A tray cleaning device, characterized in that: It comprises a cylindrical washing box (100) with upper and lower openings, wherein a tray placement portion (200) for placing a plurality of trays and rotating is arranged in the bottom of the washing box (100), and a cleaning portion (300) for washing and drying the plurality of rotating trays is arranged in the top of the washing box (100); A tray placement opening (101) is vertically formed on one side wall of the cleaning box (100); the tray placement portion (200) comprises a rotating table (210) disposed at the bottom of the tray placement opening (101) and coaxially arranged with the cleaning box (100), a support cover (220) sleeved with the bottom of the cleaning box (100) and used to support the rotating table (210), and a servo motor (230) mounted on the bottom surface of the support cover (220) and coaxially connected with the rotating table (210); the top surface of the rotating table (210) is radially formed with a plurality of slots (211) at equal intervals, and the tray width edges are erected and connected to the slots (211). The inner wall of the cleaning box (100) is symmetrically provided with water-blocking sheets (130) for dividing its inner cavity into two spaces, namely, a washing space and a drying space. The water-blocking sheets (130) are extended in an arc shape and are in sliding contact with the top edges and the outer edges of the two trays at the same time. The center of the top surface of the rotating table (210) is provided with a sealing sleeve (260) for sliding contact with the inner edges of the trays. The edge of the top surface of the support cover (220) is provided with a plurality of water leakage holes (221). The inside of the cleaning box (100) is divided into two closed spaces by a pair of water-blocking sheets (130), a sealing sleeve (260) and a plurality of trays. The cleaning section (300) comprises a water tank (310) embedded in the top of the cleaning box (100), a plurality of spraying parts (320) suspended at the bottom edge of the water tank (310), and a water pump installed inside the water tank (310) to pump liquid into the plurality of spraying parts (320); the plurality of spraying parts (320) are evenly spaced and distributed on one side of a pair of water-blocking sheets (130); a heat dissipation cavity (311) is provided on one side of the water tank (310) and between the pair of water-blocking sheets (130); an electric heating pipe (312) is embedded inside the water tank (310), and both ends of the electric heating pipe (312) extend into the heat dissipation cavity (311).

2. The tray cleaning device according to claim 1, characterized in that: A plurality of water outlet pipes (313) are embedded at the bottom edge of the water tank (310) away from the heat dissipation cavity (311); the spray cleaning member (320) comprises a nozzle (321) sleeved and movably connected to the water outlet pipe (313), and a plurality of nozzles (322) tangent to and connected to the side wall of the nozzle (321); at least four nozzles (322) are distributed in an annular manner with equal spacing, and each four nozzles (322) form a group and are distributed in an axial direction of the nozzle (321) with equal spacing; the nozzles (322) are flat-mouthed and have an inner width of 1-2 mm.

3. The tray cleaning device according to claim 2, characterized in that: The outer diameter of the rotating platform (210) is smaller than the inner diameter of the supporting cover (220); the bottom of the nozzle (321) extends between the rotating platform (210) and the supporting cover (220); a transmission gear (323) is sleeved on the bottom end of the nozzle (321); and a gear ring (212) meshing with the transmission gear (323) is sleeved on the side wall of the rotating platform (210).

4. The tray cleaning device according to claim 3, characterized in that: The top surface of the rotating table (210) is a conical surface and a chuck column (240) is vertically embedded in the center thereof. The chuck column (240) is a column with a larger upper end and a smaller lower end and is sleeved with the sealing sleeve (260). The clamping groove (211) points to the central axis of the chuck column (240), and the clamping groove (211) and the side wall of the chuck column (240) are vertically arranged. The outer wall of the top end of the chuck column (240) is annular and has a plurality of clamping grooves (241) at equal intervals. The positions of the plurality of clamping grooves (241) and the plurality of clamping grooves (211) are arranged one by one correspondingly. An elastic clip (250) is embedded in the clamping groove (241), and the elastic clip (250) is clamped with the upper end of the tray.

5. The tray cleaning device according to claim 4, characterized in that: Clamp strips (243) are symmetrically embedded on both sides of the outer end of the clamping groove (241); the elastic clip (250) is made of PP material and is V-shaped, and a limiting groove (251) is provided in the middle of the two outer sides; the limiting groove (251) is engaged with the clamping strip (243); the bent end of the elastic clip (250) faces the inner end of the clamping groove (241) and is in sliding contact with the elastic ring (253).

6. The tray cleaning device according to claim 5, characterized in that: The elastic ring (253) is made of spring steel in an elliptical sheet shape, and its long axis in a natural state points to the bent end of the elastic clip (250). A sleeve frame (254) is provided at the inner end of the elastic ring (253) facing the clamping groove (241), and an insert strip (244) sleeved with the sleeve frame (254) is embedded at the inner end of the clamping groove (241).

7. The tray cleaning device according to claim 6, characterized in that: Slide blocks (252) are symmetrically provided on both sides of the bent end of the elastic clip (250), and slide blocks (242) are provided on both inner sides of the clamping groove (241). The slide blocks (242) are located below the top of the clamping strip (243) and are clamped with the slide blocks (252).

8. The tray cleaning device according to claim 7, characterized in that: Slide bars (102) are fixedly provided on the outer wall of the cleaning box (100) above and below the dish placement opening (101); a slide cover (110) is slidably connected between the pair of slide bars (102); and a silicone pad that is snap-fitted with the dish placement opening (101) is bonded to the inner wall of the slide cover (110).

9. The tray cleaning device according to claim 8, characterized in that: The top inner wall of the cleaning box (100) is provided with a ring platform (103) for supporting the water tank (310); the bottom of the cleaning box (100) is sleeved with a recovery box (120); the recovery box (120) is an annular box body and its bottom surface is a conical surface with a downward convex middle portion; a recovery port (121) corresponding to the water leakage hole (221) is provided at the edge of the top surface of the recovery box (120); a plurality of drainage ports (122) are provided at the bottom of the inner wall of the recovery box (120); a connector (123) is sleeved around the center hole at the bottom of the recovery box (120); a water pipe is sleeved at the bottom end of the connector (123).

10. A pallet cleaning method, using the pallet cleaning device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, first open the tray placement opening (101), and stand the tray upright with the wide side facing downward and insert it into the slot (211) through the tray placement opening (101); S2, then start the servo motor (230) to drive the rotating table (210) to rotate an angle, so that the next card slot (211) is rotated to the tray placement opening (101), and then the tray is inserted, and the operation is repeated until the tray is full; S3, simultaneously starting the servo motor (230) and the water pump and connecting the electric heating pipe (312), the rotating table (210) is driven to rotate, thereby driving the plurality of trays to rotate in the cleaning box (100), and the trays are washed when passing through the plurality of spray cleaning parts (320); and are dried when passing through the area below the heat dissipation chamber (311); S4, after the first tray rotates one circle on the rotating table (210), the servo motor (230) is stopped, and then the tray placement opening (101) is opened to remove the tray; S5. After all the trays are taken out, the next batch of trays are cleaned according to the steps of S1 to S4.

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