High sanitary circulating shunt type meat car washing machine and working method thereof

Abstract

The application discloses a high-hygienic circulating shunt type meat trolley cleaning machine and a working method thereof. The equipment realizes independent operation of prewashing, main washing and rinsing through a three-water-tank double-pump staged cleaning process, avoids secondary pollution caused by long-term repeated circulation of cleaning water, and adopts a lifting and rotating type inner flushing mechanism to realize full-coverage flushing of the inner wall of the meat trolley without dead angle under the premise of effectively avoiding the overturning mechanism through a composite motion mode of lifting and rotating, so that the problems of unqualified hygiene and incomplete cleaning of the original equipment are solved.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, specifically to a highly hygienic circulating diversion type meat truck cleaning machine and its working method. Background Technology

[0002] Meat carts are commonly used material transfer containers in food processing enterprises, especially in the meat processing industry. Since the inside of the meat cart comes into direct contact with fresh meat, the surface is often covered with meat scraps, blood, grease and other dirt. It must be thoroughly cleaned after use to prevent the growth of microorganisms and cross-contamination.

[0003] The meat truck cleaning equipment currently available on the market is a type of meat truck cleaning machine developed by our company earlier. Its structure uses a single water tank combined with a circulating spray system to repeatedly draw, spray, collect, and reuse the cleaning water. Although this method has a certain water-saving and energy-saving effect, because the cleaning water is continuously recycled throughout the cleaning cycle, dirt continues to accumulate in the water tank, causing the cleaning water to gradually become turbid. The hygiene of the water sprayed onto the surface of the meat truck continues to decline, which can easily cause secondary pollution and makes it difficult to meet the high hygiene standards required by current food processing enterprises.

[0004] In addition, in existing meat truck cleaning equipment, in order to achieve a thorough cleaning of the inside of the meat truck, a long spray pipe with a length close to the height of the inside of the meat truck is usually installed. When the meat truck is turned upside down by the flipping mechanism to the cleaning station, the long spray pipe is prone to mechanical interference with the edge of the opening of the meat truck. This can affect the smoothness of the flipping action or even cause the equipment to jam or damage the parts. In order to avoid interference, some equipment has to shorten the length of the spray pipe, but this results in the spray pipe not being able to cover the entire area of ​​the inner wall of the meat truck, creating cleaning dead spots and affecting the cleaning effect. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this invention relates to a highly hygienic circulating diversion type meat cart cleaning machine. This machine has a simple and reliable structure, effectively solves the aforementioned technical problems, and is suitable for widespread use. To achieve the above objectives, this invention is implemented through the following technical solution: A highly hygienic circulating diversion type meat cart cleaning machine includes a frame; a tilting mechanism, located on the right side of the frame, for fixing the meat cart and tilting it to an inverted state; a lifting and rotating internal rinsing mechanism, located on the frame below the opening of the inverted meat cart, for extending into the interior of the meat cart for lifting and rotating rinsing; an external spraying mechanism, located on the frame, for spraying and rinsing the exterior of the meat cart; a first water pump and a second water pump, both located on the left side of the frame; the inlet of the first water pump is connected to a first water tank via a first pumping pipe, and to a second water tank via a second pumping pipe. The second water tank is connected, and regulating valves are provided on the first and second water pumping pipes; the outlet of the first water pump is connected to the main spraying pipe, which is used to provide cleaning water to the lifting and rotating internal rinsing mechanism and / or the external spraying mechanism; the inlet of the second water pump is connected to the third water tank through the third water pumping pipe, and the outlet of the second water pump is connected to the rinsing spraying pipe, which is used to provide rinsing water to the lifting and rotating internal rinsing mechanism and / or the external spraying mechanism; a manifold is set on the frame and located below the overturned meat cart, the manifold is funnel-shaped and has a drain outlet; a water collection and guiding device is set below the drain outlet of the manifold, its inlet is connected to the drain outlet of the manifold, and its outlet can be switched to the first water tank or the second water tank.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the external spraying mechanism includes a first electric drive assembly, a first transmission chain assembly and a drive spindle. The drive spindle is provided with a conduit inside. The first electric drive assembly is connected to the drive spindle through the first transmission chain assembly. The main spraying pipeline and the rinsing spraying pipeline converge and connect at the top inlet of the conduit. A U-shaped external spraying pipe is connected below the conduit. The opening of the external spraying pipe faces downward and surrounds the meat cart inside. Several nozzles are arranged sequentially at intervals along the length of the external spraying pipe.

[0007] Based on the above scheme and as a preferred embodiment: the lifting and rotating internal flushing mechanism includes a support plate fixedly mounted on the frame, a second drive assembly mounted on the support plate, a support shaft that is liftable and rotatable above the support plate, and a second transmission chain assembly. The driving sprocket of the second transmission chain assembly is connected to the output end of the second drive assembly, and the driven sprocket is sleeved on the outside of the support shaft. The support plate has a mounting hole, in which a fixed seat is fixed. A sliding sleeve is installed in the inner hole of the fixed seat, and the top of the sliding sleeve is connected to the driven sprocket. The inner wall of the sliding sleeve has two symmetrical positioning holes with a T-shaped cross-section. Each positioning hole has a limiting insert installed in it. The outer circumferential surface of the support shaft has a limiting groove extending axially. One end of the limiting insert passes through the positioning hole, protrudes from the inner wall of the sliding sleeve, and extends into the limiting groove, so as to make the support shaft rotate synchronously with the driven sprocket, while allowing the support shaft to slide axially relative to the sliding sleeve.

[0008] Based on the above scheme and as a preferred embodiment: the lifting and rotating internal flushing mechanism further includes a second cylinder. The cylinder body of the second cylinder is fixed to the support plate. The piston rod of the second cylinder is set downward and connected to a connecting plate. One end of the connecting plate is fixed with a bearing seat. A ball bearing is provided in the inner hole of the bearing seat. The lower part of the support shaft is provided with a radially concave groove. The inner ring of the ball bearing is engaged in the groove, so that the second cylinder drives the support shaft to move up and down through the connecting plate and the bearing seat. The top of the support shaft is provided with an annular spray assembly, and the bottom of the support shaft is provided with a liquid inlet assembly. The liquid inlet assembly is provided with two independent interfaces. The inside of the support shaft is provided with a coaxial sleeve structure. The coaxial sleeve structure includes a central flow channel and an annular flow channel surrounding the central flow channel. The two are isolated from each other. The inlets of the central flow channel and the annular flow channel are respectively connected to the two interfaces of the liquid inlet assembly. The outlets of the central flow channel and the annular flow channel are respectively connected to the annular spray assembly.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the first water tank has a filter plate on the top of the side adjacent to the water collection and diversion device. The filter plate is processed with filter holes that are arranged in a rectangular array and run through the front and back. Below the filter plate is an inverted triangular slag collection hopper. One end of the slag collection hopper is connected to the filter plate, and the other end is connected to the rear side wall of the first tank.

[0010] Based on the above scheme and as a preferred embodiment: the water collection and diversion device includes two symmetrically arranged side plates, a first cylinder, a rotating shaft, a connecting rod, and a diversion switching plate. The two side plates are respectively fixedly installed on the left and right sides of the drain outlet. The cylinder body of the first cylinder is connected to a positioning rod. A U-shaped seat is connected to the end of the piston rod of the first cylinder. The U-shaped seat is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is connected to one end of the rotating shaft. The rotating shaft is rotatably supported between the two side plates, and a diversion switching plate is fixedly connected to the rotating shaft. During operation, the piston rod of the first cylinder extends and retracts, driving the connecting rod to swing through the U-shaped seat, thereby driving the rotating shaft to rotate, causing the diversion switching plate to swing below the drain outlet, thus guiding the water flow to the first water tank or the second water tank.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: it also includes a main outlet pipe, a first overflow pipe, a second overflow pipe, a first drain pipe and a second drain pipe, the first drain pipe and the first overflow pipe are connected to the first water tank, the second drain pipe and the second overflow pipe are both connected to the third water tank, the first overflow pipe, the second overflow pipe, the first drain pipe and the second drain pipe are arranged side by side and finally converge into the main outlet pipe.

[0012] This invention also designs a working method for a highly hygienic circulating diversion type meat cart cleaning machine, including the following steps: S1, flip, fix the meat cart to the flipping mechanism, flip the meat cart to the inverted state through the flipping mechanism, at this time the lifting and rotating internal flushing mechanism is located at the initial low position below the opening of the meat cart; S2, Pre-washing stage: The first water pump is started to draw water from the first water tank and supply water to the lifting and rotating inner washing mechanism and the outer spraying mechanism through the main spraying pipeline. The lifting and rotating inner washing mechanism rotates and rises at the same time to pre-wash the inner wall of the meat cart. At the same time, the outer spraying mechanism pre-washes the outside of the meat cart. The wastewater generated by the pre-washing is collected by the confluence plate and flows into the water collection and guiding device. The water collection and guiding device guides the wastewater into the first water tank and then discharges it. S3, main washing step: switch the water inlet of the first water pump to draw water from the second water tank and supply water to the lifting and rotating inner washing mechanism and the outer spraying mechanism through the main spraying pipeline. The lifting and rotating inner washing mechanism rotates and rises at the same time to perform main washing on the inner wall of the meat truck, while the outer spraying mechanism performs main washing on the outside of the meat truck. In the initial stage of the main wash, the water collection and diversion device guides the wastewater into the first water tank and discharges it, which continues for a preset time. Then, the outlet of the water collection and diversion device is switched to the second water tank, so that the cleaning liquid after spraying flows back to the second water tank to form a cycle. S4, rinsing step: The second water pump is started to draw water from the third water tank and supply water to the lifting and rotating inner rinsing mechanism and the outer spraying mechanism through the rinsing spray pipe. The lifting and rotating inner rinsing mechanism rotates and rises at the same time to rinse the inner wall of the meat cart. At the same time, the outer spraying mechanism rinses the outside of the meat cart. The wastewater generated by rinsing is collected by the confluence plate and flows into the water collection and guiding device. The water collection and guiding device guides the wastewater into the first water tank for storage, for use in the pre-rinsing step of the next cleaning cycle.

[0013] The outstanding and beneficial technical effects of this invention compared to the prior art are: This invention significantly improves the hygiene and safety of the cleaning process. It employs a three-tank, dual-pump, staged cleaning process, dividing the cleaning into three stages: pre-wash, main wash, and rinsing. A first, second, and third water tank are respectively designated for pre-wash water storage, main wash liquid circulation, and high-temperature rinsing water supply. In the pre-wash stage, recycled water from the previous meat truck's rinsing is used and discharged directly after rinsing. In the main wash stage, high-concentration wastewater is initially discharged before switching to a circulation mode to prevent the continuous accumulation of contaminants in the main wash liquid. In the rinsing stage, high-temperature clean water from an independent tank is used for the final rinsing, and the rinse water is recycled back to the first water tank for use in the next pre-wash. This staged and diverted structure effectively avoids repeated cross-contamination of the cleaning water throughout the cleaning cycle, ensuring that the water sprayed onto the surface of the meat truck remains at a high level of hygiene, meeting the stringent hygiene standards required by food processing enterprises.

[0014] This invention eliminates interference from the flipping process and achieves thorough cleaning of the inner wall. It employs a lifting and rotating internal flushing mechanism with a short spray pipe design, positioned completely below the opening of the meat cart when it is flipped and inverted. This provides ample space for the flipping action and completely avoids mechanical interference between the long spray pipe and the edge of the cart opening. Simultaneously, during cleaning, the internal flushing mechanism drives the support shaft to rotate via a second drive assembly, and then raises and lowers the support shaft via a second cylinder, achieving a combined rotation and lifting motion. As the spray pipe rises, it covers the entire inner wall of the meat cart, eliminating cleaning dead zones and significantly improving the uniformity and thoroughness of the cleaning. Attached Figure Description

[0015] Figure 1 This is a first-person view diagram of the entire equipment; Figure 2 This is a second-view schematic diagram of the entire equipment; Figure 3 This is a third-person perspective diagram of the entire equipment; Figure 4 This is a schematic diagram of a water collection and diversion device; Figure 5 This is a three-dimensional schematic diagram of a lifting and rotating internal flushing mechanism; Figure 6This is a cross-sectional schematic diagram of the lifting and rotating internal flushing mechanism; Figure 7 This is a schematic diagram of the sliding sleeve. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0017] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The directions or positional relationships shown are for the purpose of describing the present invention only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0018] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0019] like Figure 1-7 As shown, in response to the problems of cleaning water circulation pollution and cleaning dead corners caused by interference between long spray pipes and the tilting mechanism in the existing technologies, our company has developed a new high-hygiene circulating diversion type meat cart cleaning machine. This equipment uses a three-tank dual-pump staged cleaning process to achieve independent operation of pre-washing, main washing, and rinsing in separate sections, avoiding secondary pollution caused by long-term repeated circulation of cleaning water. At the same time, it adopts a lifting and rotating internal rinsing mechanism, which uses a compound motion of rotating and lifting to achieve full coverage rinsing of the inner wall of the meat cart without dead corners while effectively avoiding the tilting mechanism, thereby overcoming the problems of substandard hygiene and incomplete cleaning of the original equipment.

[0020] Specifically, the equipment includes a frame 1, which serves as the supporting skeleton for the entire cleaning machine. It is used to fix and support all components, including the tilting mechanism 2, the rinsing mechanism, the water pump, and the water tank, ensuring the relative positional accuracy and operational stability of each mechanism. On the right side of the frame 1 is a tilting mechanism 2 for fixing the meat cart 3 and tilting it into an inverted position. This mechanism uses mechanical clamping or limiting devices to fix the meat cart 3, and then uses hydraulic, pneumatic, or electric drive to rotate the meat cart 3 approximately 180° around its axis, so that the opening of the meat cart 3 faces downwards in an inverted position. The specific structure can be the same as existing meat cart 3 cleaning equipment and will not be further elaborated. The inverted position allows internal residues (meat scraps, blood, grease, etc.) to flow out naturally under gravity, while also providing a channel for the internal rinsing mechanism to extend from below; it prevents rinsing water from accumulating inside, improving cleaning efficiency and drainage thoroughness.

[0021] A lifting and rotating internal rinsing mechanism 4 is installed on the frame 1 below the opening of the inverted meat cart 3. This internal rinsing mechanism can extend into the meat cart 3 to perform lifting and rotating rinsing. The lifting action adapts to meat carts 3 at different depths. The rotating spray ensures that the cleaning water covers all surfaces of the inner wall, effectively removing adhering substances and avoiding cleaning blind spots caused by fixed nozzles, significantly improving the hygiene of the inner cavity. At the same time, an external spraying mechanism 5 is arranged on the frame 1 for cleaning the exterior of the meat cart 3, simultaneously cleaning the exterior surface of the meat cart 3 and removing dirt that has accumulated during transportation, achieving simultaneous cleaning inside and out; in conjunction with the internal rinsing mechanism, it completes the cleaning of the entire vehicle.

[0022] A first water pump 6 and a second water pump 7 are installed on the left side of the frame 1. A first water tank 8 and a third water tank 9 are arranged side by side on the front side of the frame 1, and a second water tank 10 is installed on the rear side of the frame 1. The inlet of the first water pump 6 is connected to the first water tank 8 through a first water pumping pipe 11 and to the second water tank 10 through a second water pumping pipe 12. A regulating valve 13 is installed on the first water pumping pipe 11 and the second water pumping pipe 12. The outlet of the first water pump 6 is connected to the main spray pipe 14, which can selectively supply water to the lifting and rotating internal flushing mechanism 4 and... The second water pump 7 is connected to the third water tank 9 via the third water pumping pipe 15, and the outlet of the second water pump 7 is connected to the rinsing spray pipe 16. The rinsing spray pipe 16 can also selectively supply rinsing water to the lifting and rotating internal rinsing mechanism 4 and / or the external spraying mechanism 5, thus separating the cleaning and rinsing functions. The first water pump 6 is responsible for the water used for rough washing, and the second water pump 7 is responsible for the rinsing water used for fine washing, thus avoiding cross-contamination. Independent water pumps and water tanks are used in the rinsing stage to ensure that the rinsing water is not pre-contaminated, thereby improving the final hygiene level.

[0023] Below the overturned meat cart 3 is a funnel-shaped manifold 17, which uses the funnel-shaped slope to collect the water that falls after rinsing (including drainage from internal rinsing and external spraying), and directs it to a single drain outlet to effectively collect sewage and prevent water from splashing or overflowing. Below the single drain outlet of the manifold 17 is a water collection and guiding device 18. The inlet of the water collection and guiding device 18 is connected to the drain outlet of the manifold 17, while its outlet can be selectively connected to the first water tank 8 or the second water tank 10 through a switching structure. Combined with the regulating valve 13, a "diversion and circulation" system is formed. Users can set the return water destination and water supply source according to actual needs to optimize cleaning efficiency and water costs.

[0024] The entire system, through the coordinated use of flipping and inverting, lifting and rotating internal rinsing and external spraying, combined with dual water pumps, three water tanks and switchable water collection and diversion device 18, achieves graded recycling of cleaning water and high-hygienic rinsing separation, effectively reducing water consumption and improving the cleanliness of meat cart 3.

[0025] In this embodiment, it is further preferred that the external spraying mechanism 5 includes a first electric drive assembly 51, a first transmission chain assembly 52, and a drive spindle 53. The drive spindle 53 has a conduit inside. The first electric drive assembly 51 is connected to the drive spindle 53 through the first transmission chain assembly 52 to transmit the rotational power of the motor to the drive spindle 53. The chain drive can withstand the torque generated by the reaction force of the spray water, and the transmission ratio is accurate to ensure stable rotation speed. The main spray pipe and the rinsing spray pipe 16 are connected at the top inlet of the conduit. A U-shaped external spray pipe 54 is connected below the conduit. The opening of the external spray pipe 54 faces downward and surrounds the meat cart 3 inside. Several nozzles are arranged at intervals along the length of the external spray pipe 54. The rotating U-shaped pipe makes each nozzle move along a circular trajectory, and the spray coverage area overlaps with each other, so that the outer surface of the meat cart 3 can be repeatedly rinsed.

[0026] In this embodiment, it is further preferred that the lifting and rotating internal flushing mechanism 4 includes a support plate 41 fixedly mounted on the frame 1, a second drive assembly 42 mounted on the support plate 41, a support shaft 43 that is liftable and rotatable above the support plate 41, and a second transmission chain assembly 44. The driving sprocket of the second transmission chain assembly 44 is connected to the output end of the second drive assembly 42, and the driven sprocket is sleeved on the outside of the support shaft 43. The support plate 41 has a mounting hole, and a fixing seat 45 is fixed in the mounting hole. A sliding sleeve 46 is installed in the inner hole of the fixing seat 45, and the top of the sliding sleeve 46 is connected to the driven sprocket. The inner wall of the sliding sleeve 46 has two symmetrical positioning holes with a T-shaped cross-section. Each positioning hole has a limit block 47 installed in it, and the shape of the block matches the T-shaped hole to prevent it from falling off. The outer periphery of the support shaft 43 The surface is provided with a limiting groove 414 extending axially. One end of the limiting block 47 passes through the positioning hole, protrudes from the inner wall of the sliding sleeve 46, and extends into the limiting groove 414. The second drive assembly 42 drives the driven sprocket through a chain. When the driven sprocket rotates, it drives the sliding sleeve 46 to rotate. The limiting block 47 forces the support shaft 43 to rotate synchronously through the limiting groove 414. At the same time, since the limiting block 47 can move freely axially within the limiting groove 414, the support shaft 43 can slide up and down relative to the sliding sleeve 46. The rotational power and the lifting power come from different actuators and do not interfere with each other. The T-shaped limiting block 47 can be reliably fixed after being fixed by bolts to prevent it from coming off during high-speed rotation or vibration. The length of the limiting groove 414 determines the maximum lifting stroke of the support shaft 43 and can be flexibly designed according to the height of the meat cart 3 without changing the core transmission structure.

[0027] In a further preferred embodiment, the lifting and rotating internal flushing mechanism 4 further includes a second cylinder 48. The cylinder body of the second cylinder 48 is fixed to the support plate 41. The piston rod of the second cylinder 48 is arranged downward and connected to a connecting plate 49. One end of the connecting plate 49 is fixed with a bearing seat 410. A ball bearing 411 is provided in the inner hole of the bearing seat 410. The lower part of the support shaft 43 is provided with a radially concave groove. The inner ring of the ball bearing 411 is engaged in the groove, so that the second cylinder 48 drives the support shaft 43 to move up and down through the connecting plate 49 and the bearing seat 410. The bearing 411 is installed inside the bearing housing 410, and its inner ring engages in the groove at the lower part of the support shaft 43, providing a stable rotational support point for the support shaft 43. When the cylinder drives the bearing housing 410 to rise and fall through the connecting plate 49, the inner ring of the bearing pushes the support shaft 43 axially through the upper and lower sides of the groove. This ensures effective transmission of the cylinder's push and pull force and prevents the support shaft 43 from dislodging due to centrifugal force or vibration during high-speed rotation, ensuring high safety. In addition, the ball bearing 411 has a certain radial clearance and angular compensation capability, which can absorb the slight coaxiality deviation between the support shaft 43 and the cylinder piston rod, reducing the requirements for machining and assembly precision. The top of the support shaft 43 is provided with an annular spray assembly 413, and the bottom of the support shaft 43 is provided with a liquid inlet connector assembly 412. The liquid inlet connector assembly 412 has two independent interfaces. The inside of the support shaft 43 is provided with a coaxial sleeve structure, which includes a central flow channel and an annular flow channel surrounding the central flow channel. The two are isolated from each other. The inlets of the central flow channel and the annular flow channel are respectively connected to the two interfaces of the liquid inlet connector assembly 412, and the outlets of the central flow channel and the annular flow channel are respectively connected to the annular spray assembly 413. The tube structure integrates two independent flow channels within a single support shaft 43, enabling the delivery of two different media. Since the entire flow channel is integrated within the support shaft 43 and rotates and rises and falls together with it, both media can be stably delivered from the inlet connector to the top nozzle regardless of the position or speed of the support shaft 43. This eliminates the need for complex multi-way external hoses. Most importantly, the central flow channel and the annular flow channel are isolated by a metal pipe wall, preventing the cleaning water and rinsing water from mixing during delivery and ensuring that the final sprayed rinsing water remains clean and meets high hygiene requirements.

[0028] By flipping the meat cart 3 upside down so that its opening faces downwards, and in conjunction with the lifting and rotating spray assembly that can reach inside, dynamic cleaning of the interior of the meat cart 3 is achieved without dead angles. The second cylinder 48 and the ball bearing 411 slot structure completely decouple the lifting and rotating movements, which not only avoids the cylinder bearing torsional torque, but also uses rolling friction to ensure long-term durability in high humidity environments. The coaxial dual-channel design inside the support shaft 43 can deliver two different media simultaneously or at different times, so that rough washing and rinsing can be completed in one lifting and lowering, thereby shortening the cleaning cycle. At the same time, the two channels are completely isolated to prevent cross-contamination and meet food-grade hygiene requirements. The channels built into the shaft also eliminate the need for external rotating hoses and simplify the sealing structure, further improving the reliability and maintenance convenience of the whole machine.

[0029] In this embodiment, it is further preferred that the first water tank 8 has a filter plate 19 on the top of one side adjacent to the water collection and diversion device 18. The filter plate 19 is processed with filter holes that are arranged in a rectangular array and run through the front and back. Below the filter plate 19, there is an inverted triangular slag collection hopper. One end of the slag collection hopper is connected to the filter plate 19, and the other end is connected to the rear side wall of the first tank. The filter plate 19 on the top of the first water tank 8 can intercept large meat scraps and bone fragments in the return water. The inverted triangular slag collection hopper below it can automatically guide the intercepted residue to the rear side wall of the water tank for centralized cleaning, thereby avoiding impurities from clogging the water pump and spray pipes and extending the service life of the circulating water system.

[0030] In this embodiment, it is further preferred that the water collection and diversion device 18 includes two side plates 181 symmetrically arranged on the left and right, a first cylinder 182, a rotating shaft 183, a connecting rod 184, and a diversion switching plate 185. The two side plates 181 are respectively fixedly installed on the left and right sides of the drain outlet. The cylinder body of the first cylinder 182 is connected to a positioning rod. The piston rod end of the first cylinder 182 is connected to a U-shaped seat 186. The U-shaped seat 186 is rotatably connected to one end of the connecting rod 184, and the other end of the connecting rod 184 is connected to one end of the rotating shaft 183. The rotating shaft 183 is rotatably supported between the two side plates 181, and the... A flow-guiding switching plate 185 is fixedly connected to the rotating shaft 183. During operation, the piston rod of the first cylinder 182 extends and retracts, driving the connecting rod 184 to swing through the U-shaped seat 186, which in turn drives the rotating shaft 183 to rotate, causing the flow-guiding switching plate 185 to swing below the drain outlet, thereby guiding the water flow to the first water tank 8 or the second water tank 10. The first cylinder 182 drives the rotating shaft 183 through the connecting rod 184 to drive the flow-guiding switching plate 185 to swing below the drain outlet, which can quickly and accurately guide the sewage collected by the confluence plate 17 to the first water tank 8 or the second water tank 10, realizing the on-demand switching of the return water destination, and providing a reliable physical basis for the graded recycling of cleaning water.

[0031] In this embodiment, it is further preferably included that a main outlet pipe 20, a first overflow pipe 21, a second overflow pipe 22, a first drain pipe 23, and a second drain pipe 24 are also included. The first drain pipe 23 and the first overflow pipe 21 are connected to the first water tank 8, and the second drain pipe 24 and the second overflow pipe 22 are both connected to the third water tank 9. The first overflow pipe 21, the second overflow pipe 22, the first drain pipe 23, and the second drain pipe 24 are arranged side by side and finally converge into the main outlet pipe 20. The overflow pipes enable the excess water to be automatically discharged when the water level in the first water tank 8 and the third water tank 9 exceeds the set height, effectively preventing the water tanks from overflowing and causing the workshop floor to become slippery and water to enter the electrical equipment. All pipes eventually converge into the main outlet pipe 20 for centralized discharge, ensuring the safe operation of the equipment and the standardization of workshop drainage.

[0032] This invention also designs a working method for a highly hygienic circulating diversion type meat cart cleaning machine, including the following steps: S1, flip, fix the meat cart 3 to the flipping mechanism 2, flip the meat cart 3 to the inverted state through the flipping mechanism 2, at this time the lifting and rotating internal flushing mechanism 4 is located in the initial low position below the opening of the meat cart 3; S2, Pre-washing stage, lasting about 30 seconds, the first water pump 6 is started to draw water from the first water tank 8 and supply water to the lifting and rotating inner washing mechanism 4 and the outer spraying mechanism 5 through the main spraying pipeline 14. The lifting and rotating inner washing mechanism 4 rotates and rises at the same time to pre-wash the inner wall of the meat cart 3. At the same time, the outer spraying mechanism 5 pre-washes the outside of the meat cart 3 to initially remove loose blood and meat scraps from the surface. The wastewater generated by the pre-washing is collected by the confluence plate 17 and flows into the water collection and guiding device 18. The water collection and guiding device 18 guides the wastewater into the first water tank 8 and then discharges it to prevent dirty water from mixing into the subsequent circulation. S3, main washing step: First, switch the water inlet of the first water pump 6 to draw water from the second water tank 10. It is worth mentioning that the second water tank 10 at this time contains high-efficiency cleaning water mixed with food-grade detergent in proportion. Water is supplied to the lifting and rotating inner washing mechanism 4 and the outer spraying mechanism 5 through the main spraying pipe 14. The lifting and rotating inner washing mechanism 4 rotates and rises at the same time to perform main washing on the inner wall of the meat cart 3. At the same time, the outer spraying mechanism 5 performs main washing on the outside of the meat cart 3. In the first 10 seconds of the main wash, considering that some residue will still be washed out, the water collection and diversion device 18 will still guide the wastewater into the first water tank 8 and discharge it to empty the residual pre-wash wastewater in the pipeline and avoid diluting the mixed cleaning agent. Then, the water outlet of the water collection and diversion device 18 is switched to the second water tank 10, so that the cleaning liquid containing cleaning agent after spraying flows back to the second water tank 10 to form a cycle, and the main wash continues for 100 seconds. During this period, the cleaning water is recycled and the cleaning agent components are continuously released to deeply decompose and wash away the stubborn oil stains, protein scale and biofilm on the inner and outer surfaces of the meat cart 3. S4, rinsing step, lasting 30 seconds, the second water pump 7 is started to draw clean water from the third water tank 9. It is worth mentioning that the third water tank 9 at this time stores clean water that has been heated at high temperature. Water is supplied to the lifting and rotating inner rinsing mechanism 4 and the outer spraying mechanism 5 through the rinsing spray pipe 16. The lifting and rotating inner rinsing mechanism 4 rotates and rises at the same time to perform the final rinsing of the inner wall of the meat cart 3. Moreover, the transmission pipe is separated from the main pipe to avoid pollution. The outer spraying mechanism 5 rinses the outside of the meat cart 3 to thoroughly remove residual detergent and detached dirt. The wastewater generated by rinsing is collected by the manifold 17 and flows into the water collection and guiding device 18. At this time, the water collection and guiding device 18 guides all the wastewater into the first water tank 8 for storage, for use in the pre-rinsing step of the next cleaning cycle, thereby realizing the cascade utilization of water resources.

[0033] In summary, by separating the water supply and return in three stages—pre-wash, main wash, and rinsing—and combining the inverted flipping and lifting rotating internal rinsing, deep cleaning of the inner and outer surfaces of the meat cart 3 is achieved. The pre-wash stage quickly removes large pieces of dirt and directly discharges the wastewater. The main wash stage uses circulating water containing detergent to first drain the dirty water and then recycle it for a period of time, which ensures a stable detergent concentration and greatly reduces water consumption. The rinsing stage uses high-temperature water to not only thoroughly remove detergent residue but also achieve heat sterilization, significantly improving the final hygiene level. The entire process is much more efficient than traditional manual cleaning, and the rinse water is collected for the next cycle of pre-washing, significantly reducing the total water consumption. At the same time, it meets the dual requirements of the food processing industry for high hygiene, no cross-contamination, and energy conservation and environmental protection.

[0034] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made by those skilled in the art based on the structure, shape, and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A highly hygienic circulating diversion type meat cart cleaning machine, characterized in that: include frame; A flipping mechanism, located on the right side of the frame, is used to secure the meat cart and flip it over to an inverted position. A lifting and rotating internal rinsing mechanism is installed on the frame and located below the opening of the meat cart in the inverted state. It is used to extend into the meat cart to lift and rotate for rinsing. An external spraying mechanism, mounted on the frame, is used to spray and wash the exterior of the meat truck. The first and second water pumps are both located on the left side of the frame; The inlet of the first water pump is connected to the first water tank through the first water pumping pipe and to the second water tank through the second water pumping pipe. The first water pumping pipe and the second water pumping pipe are equipped with regulating valves. The outlet of the first water pump is connected to the main spraying pipe, which is used to provide cleaning water to the lifting and rotating internal rinsing mechanism and / or the external spraying mechanism. The inlet of the second water pump is connected to the third water tank through the third water pumping pipe, and the outlet of the second water pump is connected to the rinsing spray pipe. The rinsing spray pipe is used to provide rinsing water to the lifting and rotating internal rinsing mechanism and / or the external spraying mechanism. A manifold, mounted on the frame and located below the overturned meat cart, is funnel-shaped and has a drainage outlet. A water collection and diversion device is installed below the drain outlet of the manifold plate. Its inlet is connected to the drain outlet of the manifold plate, and its outlet can be switched to be connected to the first water tank or the second water tank.

2. The highly hygienic circulating diversion type meat cart cleaning machine according to claim 1, characterized in that: The external spraying mechanism includes a first electric drive assembly, a first transmission chain assembly, and a drive spindle. The drive spindle has a conduit inside. The first electric drive assembly is connected to the drive spindle via the first transmission chain assembly. The main spraying pipeline and the rinsing spraying pipeline converge and connect at the top inlet of the conduit. A U-shaped external spraying pipe is connected below the conduit. The opening of the external spraying pipe faces downward and surrounds the meat cart inside. Several nozzles are arranged at intervals along the length of the external spraying pipe.

3. The highly hygienic circulating diversion type meat cart cleaning machine according to claim 1, characterized in that: The lifting and rotating internal flushing mechanism includes a support plate fixedly mounted on a frame, a second drive assembly mounted on the support plate, a support shaft that is liftable and rotatable above the support plate, and a second transmission chain assembly. The driving sprocket of the second transmission chain assembly is connected to the output end of the second drive assembly, and the driven sprocket is sleeved on the outside of the support shaft. The support plate has mounting holes, in which a fixed seat is fixed. A sliding sleeve is installed in the inner hole of the fixed seat, and the top of the sliding sleeve is connected to the driven sprocket. The inner wall of the sliding sleeve has two symmetrical positioning holes with a T-shaped cross-section. Each positioning hole has a limiting insert installed in it. The outer circumferential surface of the support shaft has a limiting groove extending axially. One end of the limiting insert passes through the positioning hole, protrudes from the inner wall of the sliding sleeve, and extends into the limiting groove, so as to allow the support shaft to rotate synchronously with the driven sprocket, while allowing the support shaft to slide axially relative to the sliding sleeve.

4. The highly hygienic circulating diversion type meat cart cleaning machine according to claim 3, characterized in that: The lifting and rotating internal flushing mechanism also includes a second cylinder. The cylinder body of the second cylinder is fixed to the support plate. The piston rod of the second cylinder is set downward and connected to a connecting plate. One end of the connecting plate is fixed with a bearing seat. A ball bearing is provided in the inner hole of the bearing seat. The lower part of the support shaft is provided with a radially concave groove. The inner ring of the ball bearing is engaged in the groove, so that the second cylinder drives the support shaft to move up and down through the connecting plate and the bearing seat. The top of the support shaft is provided with an annular spray assembly, and the bottom of the support shaft is provided with a liquid inlet assembly. The liquid inlet assembly has two independent interfaces. The inside of the support shaft is provided with a coaxial sleeve structure. The coaxial sleeve structure includes a central flow channel and an annular flow channel surrounding the central flow channel. The two are isolated from each other. The inlets of the central flow channel and the annular flow channel are respectively connected to the two interfaces of the liquid inlet assembly. The outlets of the central flow channel and the annular flow channel are respectively connected to the annular spray assembly.

5. The highly hygienic circulating diversion type meat cart cleaning machine according to claim 1, characterized in that: The first water tank has a filter plate on the top of the side adjacent to the water collection and diversion device. The filter plate is machined with filter holes that are arranged in a rectangular array and run from front to back. Below the filter plate is an inverted triangular slag collection hopper. One end of the slag collection hopper is connected to the filter plate, and the other end is connected to the rear side wall of the first tank.

6. The highly hygienic circulating diversion type meat cart cleaning machine according to claim 1, characterized in that: The water collection and diversion device includes two symmetrically arranged side plates, a first cylinder, a rotating shaft, a connecting rod, and a diversion switching plate. The two side plates are respectively fixedly installed on the left and right sides of the drain outlet. The cylinder body of the first cylinder is connected to a positioning rod, and a U-shaped seat is connected to the end of the piston rod of the first cylinder. The U-shaped seat is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is connected to one end of the rotating shaft. The rotating shaft is rotatably supported between the two side plates, and a diversion switching plate is fixedly connected to the rotating shaft. During operation, the piston rod of the first cylinder extends and retracts, driving the connecting rod to swing through the U-shaped seat, thereby driving the rotating shaft to rotate, causing the diversion switching plate to swing below the drain outlet, thus guiding the water flow to the first water tank or the second water tank.

7. The highly hygienic circulating diversion type meat cart cleaning machine according to claim 1, characterized in that: It also includes a main outlet pipe, a first overflow pipe, a second overflow pipe, a first drain pipe, and a second drain pipe. The first drain pipe and the first overflow pipe are connected to the first water tank, and the second drain pipe and the second overflow pipe are both connected to the third water tank. The first overflow pipe, the second overflow pipe, the first drain pipe, and the second drain pipe are arranged side by side and finally converge into the main outlet pipe.

8. A method for operating a high-hygiene circulating diversion type meat cart cleaning machine according to any one of claims 1-7, characterized in that: Includes the following steps S1, flip, fix the meat cart to the flipping mechanism, flip the meat cart to the inverted state through the flipping mechanism, at this time the lifting and rotating internal flushing mechanism is located at the initial low position below the opening of the meat cart; S2, Pre-washing stage: The first water pump is started to draw water from the first water tank and supply water to the lifting and rotating inner washing mechanism and the outer spraying mechanism through the main spraying pipeline. The lifting and rotating inner washing mechanism rotates and rises at the same time to pre-wash the inner wall of the meat cart. At the same time, the outer spraying mechanism pre-washes the outside of the meat cart. The wastewater generated by the pre-washing is collected by the confluence plate and flows into the water collection and guiding device. The water collection and guiding device guides the wastewater into the first water tank and then discharges it. S3, main washing step: switch the water inlet of the first water pump to draw water from the second water tank and supply water to the lifting and rotating inner washing mechanism and the outer spraying mechanism through the main spraying pipeline. The lifting and rotating inner washing mechanism rotates and rises at the same time to perform main washing on the inner wall of the meat truck, while the outer spraying mechanism performs main washing on the outside of the meat truck. In the initial stage of the main wash, the water collection and diversion device guides the wastewater into the first water tank and discharges it, which continues for a preset time. Then, the outlet of the water collection and diversion device is switched to the second water tank, so that the cleaning liquid after spraying flows back to the second water tank to form a cycle. S4, rinsing step: Start the second water pump to draw water from the third water tank and supply water to the lifting and rotating inner rinsing mechanism and the outer spraying mechanism through the rinsing spray pipe. The lifting and rotating inner rinsing mechanism rotates and rises at the same time to rinse the inner wall of the meat cart. At the same time, the outer spraying mechanism rinses the outside of the meat cart. The wastewater generated by rinsing is collected by the confluence plate and flows into the water collection and guiding device. The water collection and guiding device guides the wastewater into the first water tank for storage, for use in the pre-rinsing step of the next cleaning cycle.

Images