Uncovering type commercial dish washing machine

Abstract

The invention relates to the technical field of dish-washing machines, in particular to an uncovering type commercial dish-washing machine which comprises a dish-washing machine cabinet with a waste water waste heat recovery function, a protective cover capable of vertically ascending and descending is arranged on the dish-washing machine cabinet, and a waste water collection assembly with a waste water collection function is arranged on the protective cover; warm waste water generated in the dish washing process of the dish washing machine cabinet body is concentrated in the water collecting tank, at the moment, another set of dishes to be cleaned are placed in the water collecting tank, part of food stains left on the surfaces of the dishes are softened and separated through the warm waste water in the water collecting tank, and when the dishes are placed in the dish washing machine cabinet body to be cleaned, the dish washing machine can clean the dishes. Food residues on dishes can be cleared away more quickly, waste water generated when the dishes are washed by the dish washing machine is prevented from being directly discharged, heat energy left in the dish washing machine is not used and is directly wasted, and waste caused by direct discharge of the waste water is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and particularly to a lid-lifting commercial dishwasher. Background Art

[0002] As a modern household appliance capable of automatically cleaning tableware, the lid-lifting dishwasher can reduce the energy consumption during machine operation and shorten the cleaning time by optimizing water flow control and energy management. By combining high-temperature water flow and a powerful spraying system, it can also thoroughly remove oil stains and food residues, ensuring the hygiene and safety of tableware. In commercial kitchens with a large number of tableware and dishes, using a lid-lifting dishwasher for tableware cleaning can help staff complete tableware cleaning faster.

[0003] During the operation of some existing lid-lifting dishwashers, after the high-temperature water flow flushes the tableware and dishes, it directly discharges after filtering food residues. This not only fails to reuse the thermal energy in the water, but also wastes the direct discharge of this water. Summary of the Invention

[0004] The purpose of the present invention is to provide a lid-lifting commercial dishwasher to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lid-lifting commercial dishwasher includes a dishwasher cabinet with waste heat recovery function. A protective cover that can move vertically up and down is provided on the dishwasher cabinet. A waste water collection component with waste water collection function is provided on the protective cover. The waste water collection component includes a connecting frame fixedly installed on the protective cover and moving up and down with it, and a water collecting tank fixedly installed on the dishwasher cabinet. An outlet for restricting the stored water volume is provided on the water collecting tank. An installation frame that can move up and down is provided in the water collecting tank. A filter plate for filtering food residues is installed in the inner frame of the installation frame. Dish racks for placing dishes are placed on both the dishwasher cabinet and the filter plate. Hoisting straps for hoisting are provided on the dish racks. Two cross-shaped chutes are provided on the inner wall of the water collecting tank. Cross-shaped sliders fixedly connected to the installation frame are provided in both of the two cross-shaped chutes. Connecting springs for pushing them upward are provided at the bottom ends of the cross-shaped sliders; The dishwasher cabinet discharges the waste water generated by washing dishes into the water collecting tank, and then the dishes to be washed on another set of dish racks can be put into the water collecting tank together with the dish racks for soaking, softening the food residues on the surface of the dishes through the residual heat in the waste water.

[0006] A connecting plate with a limiting function is installed at the bottom end of the connecting frame. A lifting rod is movably installed on the connecting plate. A fixing ring is provided on the lifting rod to cooperate with the connecting plate to limit the moving space of the lifting rod. An installation platform is arranged on the lifting rod. Two installation grooves are arranged on the installation platform. Rotating shafts are rotatably installed in the installation grooves. Rotating plates are arranged on the rotating shafts. Hooks for hooking the lifting belt are installed on the rotating plates.

[0007] A placing table for placing a storage rack and tableware to be washed is fixedly installed on the left side wall of the water collecting tank. An L-shaped positioning plate for positioning and placing the storage rack is installed at the top end of the placing table.

[0008] Sliding grooves are fixedly installed on the front and rear side walls of the water collecting tank. T-shaped sliding plates are slidably installed in the sliding grooves. A plurality of inserting rods are arranged on the T-shaped sliding plates. And a plurality of inserting rods on the same side of the water collecting tank are fixedly connected through a flat pushing plate.

[0009] A plurality of inserting holes matching the diameter of the inserting rods are arranged on the front and rear side walls of the storage rack. And fixing frames for positioning and placing the storage rack are fixedly installed on the outer walls of the storage rack.

[0010] Inclined guiding chutes are arranged on the left and right inner walls of the water collecting tank. Moving blocks are slidably installed in the guiding chutes. A scraping plate is fixedly installed between the two moving blocks. The bottom end of the scraping plate is closely attached to the top end of the filter plate, and is used for scraping the residue at the top end of the filter plate during the upward movement of the filter plate.

[0011] A knocking component is fixedly installed at the center position of the bottom end of the inner wall of the water collecting tank. The knocking component includes a column. A lifting column capable of lifting and moving to knock and vibrate the filter plate is arranged at the top end of the column. A lifting plate is fixedly installed on the outer wall of the lifting column. A fixing plate is also fixedly installed at the top end of the column. The fixing plate and the lifting plate are connected by a return spring. A docking rod is arranged at the top end of the fixing plate. A positioning hole with the same diameter as the docking rod is arranged on the lifting plate.

[0012] A positioning frame with the same inner frame size as the outer frame size of the storage rack is fixedly installed in the dishwasher cabinet for positioning and placing the storage rack in the dishwasher cabinet.

[0013] A collecting tank for collecting waste water is fixedly installed in the dishwasher cabinet. And the collecting tank is located at the bottom end of the positioning frame. And a water guide pipe for discharging the waste water in the collecting tank is arranged on the collecting tank.

[0014] A water guide groove for draining the waste water in the dishwasher cabinet into the water collecting tank is arranged directly below the water guide pipe, and the water guide groove penetrates through the left side wall of the dishwasher cabinet and extends above the water collecting tank.

[0015] A torsion spring is arranged in the installation groove, and the rotation shaft is connected to the inner wall of the installation groove through the torsion spring, so that the rotation shaft is rotatably installed in the installation groove.

[0016] A groove is arranged on the left side wall of the water collecting tank, and the leftmost side of the groove on the water collecting tank is flush with the leftmost side of the water guide groove in the dishwasher cabinet.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the warm waste water generated during the process of cleaning dishes in the dishwasher cabinet is concentrated in the water collecting tank. At this time, another set of dishes to be cleaned is placed in the water collecting tank, and part of the food stains remaining on the surface of the dishes is softened and separated by the warm waste water in the water collecting tank, so that when the dishes are put into the dishwasher cabinet for cleaning, the food residues on the dishes can be removed more quickly, avoiding the direct discharge of the waste water generated by the dishwasher when cleaning the dishes, the waste of the residual heat energy in it without being used, and avoiding the waste caused by the direct discharge of these waste waters.

[0018] After the storage rack is taken out of the water collecting tank, the connecting spring pushes the cross slider to move upward in the cross chute, so that the installation frame and the filter plate move upward synchronously, filtering the food residues in the waste water in the water collecting tank to the top of the filter plate, which is convenient for the staff to clean.

[0019] During the upward movement of the filter plate, the scraper will drive the moving block to move in the guiding chute. During the upward movement of the scraper following the moving block, the food residues stacked on the filter plate will be scraped off and stacked and concentrated on the back surface of the inner cavity of the water collecting tank, which is convenient for the staff to clean centrally.

[0020] When the docking rod is completely pulled out of the positioning hole, the thrust generated by the spring and the return spring will push the lifting column upward to hit the cross skeleton, causing the filter plate to vibrate, and locally shaking off the food residues in the filter holes of the filter plate, avoiding the water at the top of the filter plate being unable to quickly pass through the filter plate.

[0021] By controlling the movement of the flat push plate, a plurality of inserted rods are connected to the storage rack, and during the translational sliding of the T-shaped slide plate in the sliding groove, the storage rack for placing dishes can be driven to move smoothly to the top of the water collecting tank, avoiding the dishes from being broken during the movement of the storage rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2Schematic diagram of the side structure of the present invention.

[0024] Figure 3 Schematic diagram of the partial structure of the present invention.

[0025] Figure 4 Schematic diagram of the positioning frame structure of the present invention.

[0026] Figure 5 Schematic diagram of the waste water collection component structure of the present invention.

[0027] Figure 6 Schematic diagram of the connecting frame structure of the present invention.

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at position A in

[0029] Figure 8 Schematic diagram of the scraper structure of the present invention.

[0030] Figure 9 Schematic diagram of the internal structure of the water collecting tank of the present invention.

[0031] Figure 10 Schematic diagram of the knocking component structure of the present invention.

[0032] In the figure: 1, dishwasher cabinet; 2, protective cover; 3, collection tank; 4, water guide pipe; 5, positioning frame; 6, waste water collection component; 7, water collecting tank; 8, water outlet; 9, placement table; 10, L-shaped positioning plate; 11, sliding groove; 12, T-shaped sliding plate; 13, flat push plate; 14, insertion rod; 15, cross-shaped sliding groove; 16, cross-shaped sliding block; 17, connecting spring; 18, installation frame; 19, filter plate; 20, guiding sliding groove; 21, moving block; 22, scraper; 23, knocking component; 24, column; 25, lifting column; 26, fixing plate; 27, lifting plate; 28, reset spring; 29, docking rod; 30, positioning hole; 31, placement rack; 32, fixing frame; 33, insertion hole; 34, lifting belt; 35, connecting frame; 36, connecting plate; 37, lifting rod; 38, fixing ring; 39, installation table; 40, installation groove; 41, rotating shaft; 42, rotating plate; 43, hook. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 10, the present invention provides a technical solution: a lid-lifting commercial dishwasher, which includes a dishwasher cabinet 1. Inside the dishwasher cabinet 1, there are necessary components for cleaning and installing dishes in an existing lid-lifting dishwasher, such as a main washing water pump and a rinsing water pump. These are existing technical devices and will not be elaborated here. The water outlet parts of the main washing water pump and the rinsing water pump are both connected to the spray plate through water pipes. The spray plates all extend directly above the collection tank 3, facilitating the centralized collection of the wastewater generated from washing dishes into the collection tank 3 and guiding it into the water collection tank 7 through the water guide pipe 4 and the water guide groove for secondary utilization. A collection tank 3 is provided inside the dishwasher cabinet 1. The collection tank 3 is provided with a water outlet hole, and a water guide pipe 4 is fixedly installed in the water outlet hole. A water guide groove is provided directly below the water guide pipe 4, and the water guide groove penetrates through the left side wall of the dishwasher cabinet 1 and extends directly above the water collection tank 7. A positioning frame 5 is fixedly installed on the inner wall of the dishwasher cabinet 1. The top ends of the positioning frame 5 and the filter plate 19 are both provided with a storage rack 31, which is used to support the storage rack 31 for holding dishes inside the dishwasher cabinet 1 for dishwashing. A wastewater collection assembly 6 for collecting the wastewater generated from washing dishes is installed on the left side wall of the dishwasher cabinet 1.

[0035] The wastewater collection assembly 6 includes a water collecting tank 7 fixedly installed on the left side wall of the dishwasher cabinet 1. A groove is provided on the right inner wall of the water collecting tank 7. The leftmost side of the water guiding groove is directly above the groove, so as not to affect the vertical lifting movement of the rack 31 in the water collecting tank 7 and ensure that the wastewater can flow into the water collecting tank 7. An outlet 8 for discharging excess wastewater is provided on the left side wall of the water collecting tank 7. The outlet 8 is docked with an existing sewage pipe, and a stainless steel filter screen is fixedly installed in the outlet 8 to prevent food residues in the wastewater generated by washing dishes from being directly discharged. An outlet hole is provided at the bottom end of the rear side wall of the water collecting tank 7, and a plug is filled in the outlet hole. By taking out the plug from the outlet hole, the water in the water collecting tank 7 can be drained when thoroughly cleaning the inside of the water collecting tank 7. A placement table 9 is fixedly installed at the top end of the left side wall of the water collecting tank 7. An L-shaped positioning plate 10 for positioning and installing the rack 31 at the top end of the placement table 9 is provided at the top end of the placement table 9. The height of the L-shaped positioning plate 10 is less than the vertical distance between the bottom end of the rack 31 and the bottom end of the insertion hole 33, so as not to affect the translational movement of the insertion rod 14 and insert it into the insertion hole 33. By placing the rack 31 on the top end of the placement table 9 and fitting a corner of the rack 31 with the L-shaped inner corner on the L-shaped positioning plate 10, it is convenient to insert the insertion rod 14 into the insertion hole 33 on the rack 31. And the rack 31 containing dishes placed on the placement table 9 is driven by the T-shaped slide plate 12 sliding in the sliding groove 11 to move directly above the water collecting tank 7, and the hook 43 hooks the lifting belt 34 on the rack 31. Sliding grooves 11 are fixedly installed on both the front and rear side walls of the water collecting tank 7. The inner groove of the sliding groove 11 is of a T-shaped structure, and a T-shaped slide plate 12 adapted to it is slidably installed in each of the two sliding grooves 11. The length dimension of the T-shaped slide plate 12 is longer than the length of the placement table 9, so as to prevent the insertion rod 14 on the T-shaped slide plate 12 from needing to completely withdraw the T-shaped slide plate 12 from the sliding groove 11 when docking with the insertion hole 33 on the rack 31. And the right side of the sliding groove 11 is in a closed state and the left side is in an open state. When the T-shaped slide plate 12 fits against the right inner wall of the sliding groove 11, the rack 31 between the two T-shaped slide plates 12 is directly above the water collecting tank 7. The top ends of the T-shaped slide plates 12 all extend upward out of the sliding groove 11. A plurality of through holes are provided on the T-shaped slide plates 12, and insertion rods 14 are movably installed in the through holes. And a plurality of insertion rods 14 on the same side of the water collecting tank 7 are commonly connected to a flat push plate 13. By controlling the movement of the flat push plate 13 to connect a plurality of insertion rods 14 with the rack 31, the rack 31 containing dishes can be driven to move smoothly to the top of the water collecting tank 7 during the translational sliding of the T-shaped slide plate 12 in the sliding groove 11, preventing the dishes from being broken during the movement of the rack 31.

[0036] Cross chutes 15 are provided on the inner walls of the front and rear sides of the water collecting tank 7. Cross sliders 16 adapted to them are slidably installed in the cross chutes 15. The bottom ends of the cross sliders 16 and the inner walls of the cross chutes 15 are connected by connecting springs 17. The limit height at which the connecting springs 17 push the cross sliders 16 upward is higher than the water outlet 8 and will not push the cross sliders 16 out of the cross chutes 15. An installation frame 18 is fixedly installed between the two cross sliders 16. A filter plate 19 is fixedly installed in the inner frame of the installation frame 18. The filter plate 19 is made of stainless steel, and a number of filter holes are provided on its surface for filtering food residues. A cross-shaped framework is provided at the bottom end of the filter plate 19 to prevent the filter plate 19 from deforming during long-term use. When the storage rack 31 is placed in the water collecting tank 7 for soaking, the storage rack 31 will push the filter plate 19 and the installation frame 18 to slide vertically downward through the cross sliders 16 in the cross chutes 15, without affecting the bowls and dishes on the storage rack 31 from being soaked in the water collecting tank 7. After the storage rack 31 is taken out of the water collecting tank 7, the connecting springs 17 push the cross sliders 16 to move upward in the cross chutes 15, so that the installation frame 18 and the filter plate 19 move upward synchronously, filtering the food residues in the wastewater in the water collecting tank 7 to the top of the filter plate 19, which is convenient for the staff to clean up.

[0037] Guide chutes 20 are provided on the left and right side walls of the water collecting tank 7. The guide chutes 20 are arranged in an upwardly inclined state. Moving blocks 21 are movably installed in the two guide chutes 20. A scraper 22 is fixedly connected between the two moving blocks 21. The bottom end of the scraper 22 is closely attached to the filter plate 19. When the filter plate 19 moves upward under the influence of the upward thrust generated by the connecting spring 17, the filter plate 19 will drive the moving block 21 to move in the guide chute 20 through the scraper 22 during the upward movement. During the upward movement following the moving block 21, the scraper 22 will scrape off the stacked food residues on the filter plate 19 and stack them in the back of the inner cavity of the water collecting tank 7, which is convenient for the staff to clean up centrally. And it should be noted that the guide chutes 20 and the cross chutes 15 need to be cleaned regularly to prevent oil stains from accumulating and scaling in the guide chutes 20 and the cross chutes 15, affecting the sliding of the guide chutes 20 and the cross chutes 15.

[0038] A knocking component 23 is arranged at the center position of the inner wall at the bottom end of the water collecting tank 7. The knocking component 23 includes a column 24 fixedly installed on the inner wall at the bottom end of the water collecting tank 7. The column 24 is a hollow column body, and a through hole is arranged at the top end of the column 24. A lifting column 25 adapted to the diameter size of the through hole is movably installed in the through hole on the column 24. The lifting column 25 is directly below the center position of the cross-shaped framework at the bottom end of the filter plate 19. A spring is connected between the bottom end of the lifting column 25 and the bottom end of the inner cavity of the column 24. A lifting plate 27 is fixedly installed on the outer wall of the lifting column 25. A fixing plate 26 is arranged directly below the lifting plate 27. The fixing plate 26 is fixedly installed on the column 24, and a through hole with the same diameter size as the lifting column 25 is arranged on the fixing plate 26, that is, the fixing plate 26 is movably sleeved on the outer wall of the lifting column 25. A return spring 28 is connected between the lifting plate 27 and the fixing plate 26. The return spring 28 can push the lifting column 25 to move upward. A positioning hole 30 is arranged on the lifting plate 27. A docking rod 29 is arranged directly below the positioning hole 30. The docking rod 29 is fixedly installed at the top end of the fixing plate 26. After the storage rack 31 is placed in the water collecting tank 7 and drives the filter plate 19 to move downward, the cross-shaped framework at the bottom end of the filter plate 19 pushes the lifting column 25 into the column 24 during the downward movement until the docking rod 29 is inserted into the positioning hole 30. After the storage rack 31 is taken out of the water collecting tank 7, affected by the thrust generated by the spring and the return spring 28 in the column 24, the docking rod 29 is slowly pulled out of the positioning hole 30. At this time, the connecting spring 17 will push the filter plate 19 to move upward, resulting in a gap between the cross-shaped framework at the bottom end of the filter plate 19 and the lifting column 25. After the docking rod 29 is completely pulled out of the positioning hole 30, the thrust generated by the spring and the return spring 28 will push the lifting column 25 to move upward and strike the cross-shaped framework, causing the filter plate 19 to vibrate, and partially shaking off the food residues in the filter holes on the filter plate 19, preventing the water at the top end of the filter plate 19 from not quickly passing through the filter plate 19, so that the filter plate 19 holds too much water and cannot be pushed upward by the connecting spring 17.

[0039] A fixing frame 32 is fixedly installed on the outer wall of the storage rack 31. A plurality of insertion holes 33 matching the diameter size of the insertion rod 14 are arranged on the front and rear side walls of the storage rack 31. The fixing frame 32 is located above the insertion holes 33, and the length and width dimensions of the storage rack 31 are the same as the length and width dimensions of the inner frame of the positioning frame 5. Two lifting straps 34 are fixedly installed at the top end of the fixing frame 32. A plurality of columns for holding bowls and dishes are arranged on the storage rack 31.

[0040] A protective cover 2 is arranged at the top end of the dishwasher cabinet 1. The protective cover 2 is connected to the dishwasher cabinet 1 through a hydraulic push rod. Since the protective cover 2 needs to pull the storage rack 31 in the water collecting tank 7 to move upward simultaneously when it is lifted upward, and the storage rack 31 filled with bowls and dishes is relatively heavy, it is inconvenient to push the protective cover 2 upward only by manpower.

[0041] A connecting frame 35 is fixedly installed on the left side wall of the protective cover 2. The bottom end of the connecting frame 35 is fixedly installed with a connecting plate 36. A through hole is provided at the central position of the connecting plate 36. A lifting rod 37 is movably inserted into the through hole. A number of wrinkles are provided on the outer wall of the lifting rod 37. After the lifting rod 37 is pushed upward, the friction between the lifting rod 37 and the inner wall of the through hole on the connecting plate 36 is increased through the wrinkles, so that the lifting rod 37 is not easy to slide downward quickly. A fixing ring 38 is fixedly installed on the outer wall of the lifting rod 37. A rubber gasket is provided at the bottom end of the fixing ring 38, which plays a buffering effect. When the storage rack 31 is lifted out of the water collecting tank 7, by abutting the fixing ring 38 against the connecting plate 36, the hook 43 can be used to hook the water collecting tank 7 to move upward. When the storage rack 31 is slid from the storage table 9 to directly above the water collecting tank 7, the lifting rod 37 can be pushed to move upward in the through hole of the connecting plate 36 until the mounting table 39 abuts against the connecting plate 36, so as to prevent the hook 43 from being too close to the water collecting tank 7 and affecting the sliding of the storage rack 31. The fixing ring 38 is located above the connecting plate 36. Mounting tables 39 are fixedly installed at the bottom ends of the lifting rods 37. Two mounting grooves 40 are provided on the mounting tables 39. Rotating shafts 41 are rotatably installed in the two mounting grooves 40. The rotating shafts 41 are connected to the inner walls of the mounting grooves 40 through torsion springs. Rotating plates 42 are fixedly installed on the outer walls of the rotating shafts 41. Hooks 43 are provided at the bottom ends of the rotating plates 42. The torsion springs facilitate controlling the upward movement of the rotating plates 42 on the rotating shafts 41, so that the hooks 43 do not affect the sliding of the storage rack 31 to the top of the water collecting tank 7. By holding the hook 43 by hand and hooking the lifting belt 34, the storage rack 31 located directly above the water collecting tank 7 can be hooked, and then the flat push plate 13 can be pulled to displace until the insertion rod 14 is pulled out of the insertion hole 33. Then, during the downward movement of the protective cover 2, the storage rack 31 can be driven into the water collecting tank 7, so that the dishes on the storage rack 31 can be soaked in the warm water in the water collecting tank 7, softening and detaching the remaining food stains on their surfaces, and enabling the food residues on the dishes to be removed more quickly after the dishes are placed in the dishwasher cabinet 1 and are directly above the positioning frame 5.

[0042] When the present invention is used, the electrical appliances on the dishwasher cabinet 1 are first started by an external power supply, a rack 31 containing dishes is placed in the dishwasher cabinet 1, and the fixing frame 32 is made to fit the top of the positioning frame 5, so that the protective cover 2 can be controlled to move downward, and then the dishes on the rack 31 are cleaned by the equipment in the dishwasher cabinet 1. The warm waste water and small-sized food residues generated during the cleaning process will be guided and discharged into the water collection tank 7 through the water guide pipe 4. When the dishwasher cabinet 1 cleans the dishes, another rack 31 is simultaneously placed on the top of the storage table 9 and one corner of the rack 31 is made to fit the inner corner of the L-shaped positioning plate 10, so that the rack 31 is placed in the center on the storage table 9, and the T-shaped slide plate 12 is controlled to partially slide out of the sliding groove 1 1, and control the push plate 13 to translate on the T-shaped slide plate 12 until the insertion rod 14 is inserted into the insertion hole 33, and in this process, the position of the T-shaped slide plate 12 can be controlled to be fine-tuned. When the storage rack 31 is connected to the T-shaped slide plate 12 through the insertion rod 14, control the lifting rod 37 to move upward until the mounting platform 39 fits the bottom plate of the connecting plate 36, and then control the T-shaped slide plate 12 to slide in the sliding groove 11 until it fits the right inner wall of the sliding groove 11. At this time, the storage rack 31 located between the two T-shaped slide plates 12 is directly above the water collection tank 7, pull the two hooks 43 to rotate downward through the rotating shaft 41 and hook the lifting belt 34 on the storage rack 31, and pull the insertion rod 14 out of the insertion hole 33. At this time, hold the lifting rod 37 and slowly move downward until the lifting rod 37 is on The fixing ring 38 of the connecting plate 36 is attached to the top plate of the connecting plate 36. At this time, the rack 31 and the dishes on the rack 31 all enter the water collection tank 7 and are soaked in the warm waste water, so that the food stains remaining on the surface are partially softened and detached. After the dishes in the dishwasher cabinet 1 are cleaned, the hydraulic push rod is controlled to push the protective cover 2 to move upward. At this time, the connecting rack 35 installed on the protective cover 2 moves upward synchronously, so that the lifting rod 37 is closely attached to the connecting plate 36 through the fixing ring 38 and follows its upward movement, so that the hook 43 under the lifting rod 37 can hook the rack 31 in the water collection tank 7 and move upward until it is completely detached from the water collection tank 7, and then the rack 31 and dishes in the dishwasher cabinet 1 are taken out, and the rack 31 and dishes directly above the water collection tank 7 are placed in the dishwasher cabinet 1 for cleaning. The cleaning process is completed, and when the storage rack 31 is taken out of the sump 7, the connecting spring 17 will push the cross slider 16 to move upward in the cross slide 15, so that the food residues in the sump 7 are filtered onto the filter plate 19, and in the process of the installation frame 18 and the filter plate 19 moving upward, the return spring 28 pushes the lifting plate 27 to move upward and knock the cross frame at the bottom end of the filter plate 19, so that the food residues in the filter holes on the filter plate 19 are partially shaken off, and in the process of the installation frame 18 continuing to move upward, it will push the two moving blocks 21 to move in the guide slide 20, and make the scraper 22 between the two moving blocks 21 scrape the food residues on the top of the filter plate 19 to move toward the back of the sump 7 until the height of the filter plate 19 is higher than the water outlet 8.The food residues piled up can be cleaned by scraping with the scraper 22.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cover-type commercial dishwasher, comprising a dishwasher cabinet with wastewater waste heat recovery function, characterized in that: The dishwasher cabinet is provided with a protective cover that can be lifted and lowered vertically, the protective cover is provided with a wastewater collection component with a wastewater collection function, the wastewater collection component includes a connecting frame fixedly mounted on the protective cover and following the lifting and lowering movement thereof, a water collection tank fixedly mounted on the dishwasher cabinet, the water collection tank is provided with a water outlet for limiting the amount of water stored therein, a mounting frame that can be lifted and lowered is provided in the water collection tank, a filter plate for filtering food residues is installed in the inner frame of the mounting frame, a rack for holding dishes is placed on the dishwasher cabinet and the filter plate, a lifting belt for lifting is provided on the rack, two cross slides are provided on the inner wall of the water collection tank, a cross slide fixedly connected to the mounting frame is provided in each of the two cross slides, and a connecting spring for pushing the cross slide to move upward is provided at the bottom end of the cross slide; The dishwasher cabinet discharges waste water generated by washing dishes into the water collection tank, and dishes to be washed on another set of racks can be placed in the water collection tank along with the racks for soaking, and the food residues on the surfaces of the dishes can be softened by the residual heat in the waste water.

2. A cover-type commercial dishwasher according to claim 1, characterized in that: A connecting plate with a limiting function is installed at the bottom end of the connecting frame, a lifting rod is movably installed on the connecting plate, a fixing ring is provided on the lifting rod to cooperate with the connecting plate to limit the movable space of the lifting rod, a mounting platform is provided on the lifting rod, two mounting grooves are provided on the mounting platform, a rotating shaft is rotatably installed in the mounting groove, a rotating plate is provided on the rotating shaft, and a hook for hooking the lifting belt is installed on the rotating plate.

3. A cover-type commercial dishwasher according to claim 1, characterized in that: A storage table for placing a storage rack and dishes to be washed is fixedly installed on the left side wall of the water collection tank, and an L-shaped positioning plate for positioning the storage rack is installed on the top of the storage table.

4. The cover-type commercial dishwasher according to claim 1, characterized in that: Sliding grooves are fixedly installed on the front and rear side walls of the water collecting trough, T-shaped slides are slidably installed in the sliding grooves, a plurality of plug-in rods are arranged on the T-shaped slides, and a plurality of plug-in rods located on the same side of the water collecting trough are fixedly connected by a push plate.

5. The cover-type commercial dishwasher according to claim 1, characterized in that: A plurality of insertion holes matching the diameter of the insertion rods are arranged on the front and rear side walls of the storage rack, and a fixing frame for positioning the storage rack is fixedly installed on the outer wall of the storage rack.

6. The cover-type commercial dishwasher according to claim 1, characterized in that: Inclined guide grooves are provided on the inner walls on both sides of the water collection tank, and moving blocks are slidably installed in the guide grooves. A scraper is fixedly installed between the two moving blocks. The bottom end of the scraper is close to the top of the filter plate, which is used to scrape off the residue on the top of the filter plate during the upward movement of the filter plate.

7. The cover-type commercial dishwasher according to claim 1, characterized in that: A knocking assembly is fixedly installed at the center position of the bottom end of the inner wall of the water collection tank, and the knocking assembly includes a column, and a lifting column is arranged on the top of the column, which can be lifted and lowered to knock and vibrate the filter plate, and a lifting plate is fixedly installed on the outer wall of the lifting column. A fixed plate is also fixedly installed on the top of the column, and the fixed plate and the lifting plate are connected by a reset spring. A docking rod is arranged on the top of the fixed plate, and a positioning hole with the same diameter as the docking rod is arranged on the lifting plate.

8. The cover-type commercial dishwasher according to claim 1, characterized in that: A positioning frame having the same size as the inner frame and the outer frame of the rack is fixedly installed in the dishwasher cabinet, and is used to position the rack in the dishwasher cabinet.

9. The cover-type commercial dishwasher according to claim 1, characterized in that: A collecting tank for collecting waste water is fixedly installed in the cabinet of the dishwasher, and the collecting tank is located at the bottom of the positioning frame. A water guide pipe for discharging waste water in the collecting tank is arranged on the collecting tank.

10. A cover-type commercial dishwasher according to claim 9, characterized in that: A water guide groove for draining waste water in the dishwasher cabinet to the water collection groove is arranged directly below the water guide pipe, and the water guide groove penetrates the left side wall of the dishwasher cabinet and extends to directly above the water collection groove.

11. A cover-type commercial dishwasher according to claim 2, characterized in that: A torsion spring is arranged in the installation groove, and the torsion spring is connected with the inner wall of the installation groove through the rotating shaft, so that the rotating shaft is rotatably installed in the installation groove.

12. The cover-type commercial dishwasher according to claim 1, characterized in that: A groove is arranged on the left side wall of the water collecting tank, and the leftmost side of the groove on the water collecting tank is flush with the leftmost side of the water guide groove in the dishwasher cabinet.

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