A twin-bubble tank pre-wash-free and slag-scraping-free dishwasher device

Abstract

The application provides a double-bubble-pool pre-washing-free and slag-scraping-free dishwasher device, and belongs to the technical field of commercial long-dragon dishwasher equipment. The device comprises a rack, a first bubble pool and a second bubble pool arranged on the rack, an inlet rack and an outlet rack arranged at two ends of the rack, and a terminal spraying slag-removing system arranged on the outlet rack. A claw-type conveying belt is arranged around and sequentially passes through the inlet, the first bubble pool, the second bubble pool and the spraying system, and a conveying belt track is arranged on each component. The automatic inlet and outlet linkage, the double-bubble staged cleaning and the integrated design of the terminal spraying realize the automatic feeding of tableware, the staged slag removal and oil removal, the spraying complete slag removal and the automatic outlet of the whole process of unmanned operation. The device further integrates an anti-backflow bubble generator, an inverted trapezoidal self-cleaning pool body and a staged water circulation system. The device has the advantages of high automation, excellent cleaning effect, water and energy saving, low maintenance cost and the like, and can seamlessly connect the upstream and downstream automatic dishwasher equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of commercial long-line dishwasher equipment, specifically relating to a dishwasher device with dual bubble tanks that requires no pre-washing and no scraping. Background Technology

[0002] Existing commercial long-line dishwashers require manual pre-scraping, pre-rinsing, or soaking of tableware, resulting in high labor costs, low efficiency, and poor hygiene. High-pressure spray cleaning consumes a lot of water, and mechanical scraping can easily damage tableware and cause jamming. Furthermore, there is a lack of fully automated, pre-wash-free cleaning structures, making them unsuitable for large-scale commercial applications. With the increasing scale of the catering industry, hotel kitchens, large canteens, and central kitchens are placing higher demands on the efficiency, cleanliness, and automation of tableware cleaning. Tableware cleaning involves multiple stages, including residue removal, degreasing, and rinsing. Existing commercial dishwashers mostly use single-stage spraying, simple bubbling cleaning, or separate bubbling and spraying structures. For tableware with high levels of oil and residue, existing technologies generally suffer from the following pain points: 1. Insufficient cleaning and grading capabilities: It cannot separate large food scraps (such as bones and vegetable leaves) from small emulsified oil and food particles, which can easily cause filter clogging or secondary contamination of tableware, making it difficult to meet the cleanliness standards.

[0003] 2. Unreasonable sewage discharge structure: Residue and waste oil generated during cleaning tend to accumulate in dead corners at the bottom of the pool, which are difficult to clean thoroughly using traditional sewage discharge methods. Residual impurities are prone to odor and bacterial growth.

[0004] 3. Lack of backflow prevention design in the air circuit: Traditional bubble generators are directly connected to the air pump. When the machine is stopped, sewage in the tank can easily flow back into the air pump, causing air circuit blockage, motor corrosion and damage, and high equipment failure rate.

[0005] 4. Poor bubble uniformity: The holes of the bubble generator are mostly evenly distributed. Due to the pressure loss along the process, the bubble strength at the end is weak, the cleaning force in the pool is uneven, and the cleanliness of the tableware is affected.

[0006] 5. Incomplete end-of-pipe slag removal: After bubbling, there is no targeted spray slag removal structure or poor coordination. Fine residues remaining on the surface of the tableware need to be manually cleaned a second time, increasing labor costs.

[0007] 6. Low water resource utilization rate: Most of the cleaning water is discharged once and is not recycled in stages, resulting in serious waste of water resources and high operating costs.

[0008] 7. Low level of automation, forming "islands": Existing bubbling tanks generally adopt manual feeding and discharging mode, which is inefficient and poses safety hazards; and there are no standardized interfaces, which cannot seamlessly connect with upstream and downstream equipment, hindering the automation of the whole process.

[0009] 8. Limited overall effectiveness: It is difficult to achieve efficient cleaning throughout the entire process of "large residue stripping - small residue / oil removal - thorough removal of residual residue," resulting in poor overall adaptability and practicality. Therefore, improvements are necessary. Summary of the Invention

[0010] The technical problem solved by the present invention: The present invention aims to overcome the shortcomings of the prior art and provide a dishwasher device with a double bubble tank that does not require pre-washing or scraping, so as to solve the technical problems of low automation, poor cleaning effect, high maintenance cost and inability to link with subsequent equipment in the existing equipment.

[0011] To achieve the above objectives, the present invention adopts the following technical solution: A dishwasher device with dual bubbling tanks that requires no pre-washing and no scraping is disclosed. The device includes a frame with a bubbling and slag removal section. This section comprises a first bubbling section and a second bubbling section, each with a first and second bubbling tank. A feed rack is located at the right end of the frame near the first bubbling tank, and a discharge rack is located at the left end of the frame near the second bubbling tank. An end-spray slag removal system is installed on the discharge rack. A mesh-claw type conveyor belt is arranged around the frame, feed rack, and discharge rack, sequentially passing through the feed inlet, the first bubbling tank, the second bubbling tank, and the end-spray slag removal system. Conveyor belt tracks adapted to both sides of the mesh-claw type conveyor belt are provided on the feed rack, the first bubbling tank, the second bubbling tank, and the discharge rack. A conveyor drive device and a conveyor belt tensioning device are provided on the feed rack and the discharge rack for driving and adjusting the mesh-claw type conveyor belt.

[0012] Further defining the above scheme, both the first bubbling tank and the second bubbling tank are inverted trapezoidal structures, with a residue sedimentation tank and an automatic slag discharge port at the bottom to remove residue, and a rotary drain valve for discharging deposited dirt and wastewater is provided in the central area of ​​the bottom of each tank.

[0013] Further defining the above scheme, both the first and second bubbling pools are equipped with bubble generators at the bottom. The equipment has a built-in high-pressure bubble generator, which is located in the pool bottom area below the mesh claw conveyor belt. The bubble generator is provided with bubbling holes for blowing compressed air into the pool. The pipe of the bubble generator extends upward to 10-15cm above the water level in the pool before connecting to an external air pump to form a U-shaped anti-backflow air path structure.

[0014] Further defining the above scheme, the bubbling holes on the bubbling generator are non-uniformly distributed, wherein the hole spacing at the end furthest from the air pump is smaller than the hole spacing at the end closest to the air pump.

[0015] To further define the above scheme, electric auxiliary heating pipes are respectively installed below the bodies of the first bubbling pool and the second bubbling pool.

[0016] Further defining the above scheme, the second bubbling pool is provided with an overflow outlet I, and the first bubbling pool is provided with an overflow water inlet I. The overflow outlet I is positioned higher than the overflow water inlet I and the two are connected to each other, so that the water in the second bubbling pool can overflow into the first bubbling pool.

[0017] Further defining the above scheme, the end-spray slag removal system includes a water collection hopper and an upper spray assembly and a lower spray assembly located above the water collection hopper. The upper spray assembly and the lower spray assembly are used to spray water downwards and upwards respectively to form a double-sided surround spray, which provides a secondary rinse for the tableware after the bubbling treatment to ensure no residue. A filter device is connected to the bottom of the water collection hopper.

[0018] Further defining the above scheme, the water collection hopper is provided with an overflow port II, and the second bubbling tank is provided with an overflow water inlet II. The overflow port II is positioned higher than the overflow water inlet II and the two are connected to each other, so that the spray wastewater filtered by the filtration device can overflow into the second bubbling tank.

[0019] Further defining the above solution, the surface of the mesh claw conveyor belt is provided with an anti-drop mesh claw structure for firmly clamping the food frame and tableware, and pulleys adapted to the conveyor belt track are evenly distributed on both sides of the mesh claw conveyor belt, with meshing tooth grooves formed between two adjacent pulleys.

[0020] Further specifying the above solution, the conveying drive device includes a drive motor, a transmission shaft, and transmission gears fixed at both ends of the transmission shaft. The output of the drive motor is connected to one end of the transmission shaft, and the transmission gears are adapted to the meshing tooth grooves on both sides of the claw-type conveyor belt. The conveyor belt tensioning device includes a tensioning mounting frame fixed on the frame. A tensioning slider is slidably connected to the tensioning mounting frame. One side of the tensioning slider is connected to the tensioning mounting frame through a tension adjusting screw and a nut. A tensioning wheel shaft is connected to the tensioning slider, and a tensioning wheel is rotatably supported on the tensioning wheel shaft. The tensioning wheel is adapted to the meshing tooth grooves on both sides of the claw-type conveyor belt.

[0021] Advantages of this invention compared to existing technologies: 1. This solution boasts a high degree of automation: it truly enables dirty tableware to be directly fed into the machine, eliminating the need for pre-washing, scraping, and soaking. Through the coordinated design of standardized automatic feeding and discharging interfaces and a mesh claw conveyor belt, it achieves fully unmanned operation from feeding, washing, spraying to discharging. It can seamlessly connect with upstream and downstream automated equipment, completely streamlining the automated dishwashing production line and significantly improving production efficiency. 2. This solution uses physical bubbling to remove slag, which is non-contact and does not damage tableware. It is non-jamming, has an extremely low failure rate, and automatically discharges slag and changes water. No manual cleaning is required, and operation and maintenance are simple. 3. This solution offers superior cleaning results: It constructs a three-stage cleaning mode consisting of "first bubbling stage (large residue removal) - second bubbling stage (small residue / emulsified oil removal) - final spray (thorough removal of residual residue)", forming an extended single bubbling tank + a two-way high-pressure spray structure at the end. This achieves uniform bubbling and high-temperature cleaning, which can thoroughly remove various types of residue and oil stains from the surface of tableware. The cleanliness compliance rate is high, far exceeding that of existing single-stage cleaning equipment. 4. This solution features long equipment life and low maintenance costs: The innovative anti-backflow bubble generator design completely eliminates the risk of sewage backflow damaging the air pump; the non-uniform bubble hole design ensures uniform bubble formation and reduces localized wear; the self-cleaning sewage discharge system reduces the burden of manual cleaning, thereby lowering the overall equipment failure rate and maintenance costs. 5. This solution saves water and energy and has low operating costs: The tiered water circulation system utilizes the overflow water from the second bubbling tank and the filtered wastewater from the end spray in a tiered manner for the first and second bubbling tanks, which significantly reduces the amount of fresh water replenishment and wastewater discharge, meets the requirements of energy conservation and environmental protection, and reduces long-term operating costs. 6. This solution has a reasonable structure and is safe and hygienic: the inverted trapezoidal pool body, combined with an automatic rotating drain valve, avoids residue accumulation and bacterial growth; the overall structure of the equipment is stable and the operation is safe and reliable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the combined structure of the present invention and a universal dishwasher. Figure 2 This is a schematic diagram of the overall main structure of the present invention. Figure 3 For the present invention Figure 1 Schematic diagram of AA section in the middle; Figure 4 This is a schematic diagram showing the interaction between a portion of the claw-type conveyor belt and the conveyor belt track in this invention; Figure 5 For the present invention Figure 3 Enlarged schematic diagram of section B in the middle; Figure 6 This is a cross-sectional view of the interaction between the pulleys and the conveyor belt track on the claw-type conveyor belt in this invention; Figure 7 This is a schematic diagram illustrating the cooperation between the claw-type conveyor belt and the conveyor drive device in this invention; Figure 8 This is a physical diagram of the overall device of the present invention.

[0023] Explanation of markings in the diagram: frame (1); first bubbling section (2); first bubbling pool (2-1); overflow water inlet I (2-1-1); Second bubbling section (3), second bubbling tank (3-1), overflow port I (3-1-1), overflow water inlet II (3-1-2); feed rack (4); discharge rack (5); end spray slag removal system (6), water collection hopper (6-1), overflow port II (6-1-1), filter device (6-2), upper spray assembly (6-3), lower spray assembly (6-4); mesh claw type conveyor belt (7), mesh claw structure (7-1), pulley (7-2), meshing tooth groove (7-3); conveyor drive device (8), drive motor (8-1), drive shaft (8-2), drive gear (8-3); conveyor belt tensioning device (9), tension mounting bracket (9-1), tension slider (9-2), tension wheel shaft (9-3), tension wheel (9-4), tension adjusting screw (9-5); conveyor belt track (10); bubbling air pipe (11); Bubble generator (12); Electric auxiliary heating element (13); Rotary drain valve (14) Universal dishwasher (15). Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-8 The embodiments of the present invention are described in detail below.

[0026] like Figure 1-2 As shown, a dishwasher device with dual bubbling tanks that requires no pre-washing and no scraping includes a heavy-duty steel frame 1 as the main support. A first bubbling section 2 and a second bubbling section 3 are sequentially arranged on the frame 1. The first bubbling section 2 includes a first bubbling tank 2-1, and the second bubbling section 3 includes a second bubbling tank 3-1.

[0027] The right end of the frame 1 is equipped with a feeding rack 4 near the first bubbling tank 2-1, forming an automatic feeding interface for connecting to upstream feeding equipment. The left end of the frame 1 is equipped with a discharging rack 5 near the second bubbling tank 3-1, forming an automatic discharging interface for connecting to subsequent automated equipment. The discharging rack 5 is equipped with a terminal spray cleaning system 6 for final high-pressure spray cleaning of the tableware. The core conveying component of this embodiment is a ring-shaped mesh claw conveyor belt 7, which is arranged around the frame 1, the feeding rack 4, and the discharging rack 5, and passes sequentially through the feeding point, the first bubbling tank 2-1, the second bubbling tank 3-1, and the terminal spray cleaning system 6. The feeding rack 4, the first bubbling tank 2-1, the second bubbling tank 3-1, and the discharging rack 5 are all equipped with conveyor belt tracks 10 adapted to both sides of the mesh claw conveyor belt 7, which guide the conveyor belt to run along a preset trajectory, realizing automatic entry, horizontal cleaning, and lifting out of the tableware.

[0028] The running trajectory of the conveyor belt track 10 is defined by the conveyor belt track 10 laid on each component. Specifically, it receives material horizontally from the automatic feeding interface, then tilts downwards and sinks into the first bubbling tank 2-1. After running horizontally in the tank for a period of time, it tilts upwards and is lifted out of the tank. Subsequently, it enters the second bubbling tank 3-1 along a similar trajectory. After being lifted out of the tank, it enters below the end spray slag removal system 6 and is finally conveyed to the automatic discharge interface. The conveyor belt tensioning device 9 is used to ensure that the claw-type conveyor belt 7 maintains a suitable tension during operation and prevents deviation and shaking.

[0029] As a preferred option, such as Figure 3 The first bubbling tank 2-1 and the second bubbling tank 3-1 shown are both inverted trapezoidal structures with slag-guiding slopes on both sides of the tank body so that the residue can automatically collect under the impact of gravity and water flow. Each bubbling tank is equipped with a rotary drain valve 14 electrically connected to the control system in the central area of ​​the bottom of the tank, which is used to periodically discharge the deposited dirt and wastewater to achieve self-cleaning.

[0030] Preferably, bubble generators 12 are installed at the bottom of both the first bubble pool 2-1 and the second bubble pool 3-1. The bubble generators 12 are located in the bottom area below the mesh-claw conveyor belt 7. Each bubble generator 12 has bubble holes for injecting compressed air into the pool to form impact bubbles. To prevent backflow, the air supply pipe 11 of the bubble generator 12 adopts a U-shaped anti-backflow design, extending upwards to above the water surface before connecting to the air pump. The air supply pipe 11 extends upwards to 10-15 cm above the water level before connecting to the external air pump, thus forming a U-shaped anti-backflow air path structure. Furthermore, the bubble holes on the bubble generator 12 are non-uniformly distributed, with denser holes at the distal end and sparser holes at the proximal end. The hole spacing at the end furthest from the air pump is smaller than that at the end closest to the air pump to compensate for pressure loss along the flow path and ensure uniform bubbling throughout the pool.

[0031] Preferably, electric auxiliary heating tubes 13 are provided below the bodies of the first bubbling tank 2-1 and the second bubbling tank 3-1, as well as in the lower area of ​​the bubbling generator 12, to maintain the cleaning water at the optimal working temperature.

[0032] Preferably, in order to achieve graded water recycling, the second bubbling tank 3-1 is provided with an overflow port I3-1-1, and the first bubbling tank 2-1 is provided with an overflow water inlet I2-1-1. The overflow port I3-1-1 is positioned higher than the overflow water inlet I2-1-1, and the two are connected to each other.

[0033] Preferably, the end-spray slag removal system 6 includes a water collection hopper 6-1 and an upper spray assembly 6-3 and a lower spray assembly 6-4 located above the water collection hopper 6-1. The upper spray assembly 6-3 and the lower spray assembly 6-4 are used to spray water downwards and upwards respectively, forming a double-sided surround spray to ensure that both sides of the tableware are rinsed. Each spray assembly includes a spray frame with a high-pressure nozzle. The water pipe on the spray frame is connected to an external water pump. A filter device 6-2 is connected to the bottom of the water collection hopper 6-1 to filter and intercept residue after rinsing. Furthermore, to achieve water resource recycling, the water collection hopper 6-1 is provided with an overflow port II 6-1-1, and the second bubbling tank 3-1 is provided with an overflow water inlet II 3-1-2. The overflow port II 6-1-1 is positioned higher than the overflow water inlet II 3-1-2, and the two are interconnected.

[0034] As a preferred option, such as Figure 4-7 As shown, the surface of the claw conveyor belt 7 is provided with a claw structure 7-1 for firmly gripping the food frame and tableware to prevent them from falling off. Pulleys 7-2, adapted to the conveyor belt track 10, are evenly distributed on both sides of the claw conveyor belt 7. A meshing groove 7-3 is provided between two adjacent pulleys 7-2 for meshing with the transmission gear 8-3 in the conveyor drive device 8.

[0035] The feed rack 4 and the discharge rack 5 are equipped with a conveyor drive device 8 and a conveyor belt tensioning device 9, which are used to drive the conveyor belt and adjust its tension, respectively.

[0036] Preferably, the conveyor drive device 8 includes a drive motor 8-1, a transmission shaft 8-2, and transmission gears 8-3 fixed at both ends of the transmission shaft 8-2. The transmission gears 8-3 are adapted to the meshing tooth grooves 7-3 on both sides of the claw-type conveyor belt 7. The conveyor belt tensioning device 9 includes a tensioning mounting frame 9-1 fixed on the frame 1, and a tensioning slider 9-2 is slidably connected to the tensioning mounting frame 9-1. One side of the tensioning slider 9-2 is connected to the tensioning mounting frame 9-1 via a tension adjusting screw 9-5 and a nut for adjustment. A tensioning wheel shaft 9-3 is connected to the tensioning slider 9-2, and a tensioning wheel 9-4 is rotatably supported on the tensioning wheel shaft 9-3. The tensioning wheel 9-4 is adapted to the meshing tooth grooves 7-3 on both sides of the claw-type conveyor belt 7.

[0037] Working principle and process: like Figure 1 As shown, when in use, this invention is combined with the main wash and rinse sections of a universal dishwasher 15 to form a cleaning system. Its working process fully demonstrates its advantages of automation and tiered cleaning, as detailed below: 1. Automatic feeding: The upstream automated equipment loads the food baskets containing the tableware to be cleaned and smoothly feeds them onto the mesh claw conveyor belt 7 through the standardized automatic feeding interfaces at the feeding rack 4. The mesh claw structure 7-1 of the conveyor belt firmly clamps the food baskets.

[0038] 2. Primary Bubble Washing and Large Food Debris Removal: The mesh-claw conveyor belt 7 carries the food tray into the washing water of the first bubble tank 2-1 along a preset track. A large number of uniform bubbles generated by the bubble generator 12 at the bottom of the tank powerfully impact the surface of the tableware, removing large pieces of food residue such as bones and vegetable leaves. The removed residue collects along the inverted trapezoidal tank wall to the bottom under the influence of gravity.

[0039] 3. Secondary Bubble Cleaning for Fine Degreasing: After the primary cleaning, the tableware frame is lifted out of the first bubble tank 2-1 by the mesh claw conveyor belt 7 and then conveyed into the second bubble tank 3-1. Here, the impact of bubbles and high-temperature water are used to further remove fine food particles and emulsified grease from the surface of the tableware.

[0040] 4. Thorough Cleaning with Terminal Spraying: After the secondary cleaning, the tableware frames are lifted out of the tank and sent to the terminal spraying system 6. Upper and lower spray components 6-3 and 6-4 spray high-pressure water from multiple angles to thoroughly rinse away all remaining fine residue and floating oil from the tableware surface, ensuring a high standard of cleanliness. The rinsing wastewater is collected in the collection hopper 6-1 and filtered by the filtration device 6-2 before overflowing into the second bubbling tank 3-1 for recycling.

[0041] 5. Automatic Discharge Linkage: Clean tableware that has completed all cleaning processes is conveyed by the mesh claw conveyor belt 7 to the standardized automatic discharge interface at the end of the discharge rack 5, and directly sent into subsequent automated equipment such as the general-purpose dishwasher 15, achieving seamless linkage throughout the entire process.

[0042] 6. System self-maintenance: During equipment operation, the electric auxiliary heating tube 13 works continuously to maintain the water temperature; the control system opens the rotary drain valve 14 at the bottom of each bubbling tank at regular intervals to discharge high-concentration dirty water and keep the tank clean; the anti-backflow bubbling generator structure protects the air pump from damage at all times, ensuring long-term stable operation of the equipment.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dishwasher device with a double-bubbling tank that requires no pre-washing and no scraping, comprising a frame (1), characterized in that: The frame (1) is provided with a bubbling slag removal section, which is a double bubbling tank structure including a first bubbling section (2) and a second bubbling section (3). The first bubbling section (2) includes a first bubbling tank (2-1), and the second bubbling section (3) includes a second bubbling tank (3-1). The right end of the frame (1) is provided with a feed rack (4) near the first bubbling tank (2-1), and the left end of the frame (1) is provided with a discharge rack (5) near the second bubbling tank (3-1). The material rack (5) is equipped with an end spray slag removal system (6); a mesh claw type conveyor belt (7) is arranged around the frame (1), the feed rack (4) and the discharge rack (5), and passes through the feed point, the first bubbling tank (2-1), the second bubbling tank (3-1) and the end spray slag removal system (6) in sequence; the feed rack (4), the first bubbling tank (2-1), the second bubbling tank (3-1) and the discharge rack (5) are all equipped with conveyor belt tracks (10) that are adapted to both sides of the mesh claw type conveyor belt (7).

2. The dishwasher device with dual bubbling tank, requiring no pre-washing and no scraping, as described in claim 1, is characterized in that: Both the first bubbling tank (2-1) and the second bubbling tank (3-1) are inverted trapezoidal structures, and both are equipped with a rotary drain valve (14) for discharging sediment and wastewater in the central area of ​​the bottom of the tank.

3. The dishwasher device with dual bubbling tanks that requires no pre-washing and no scraping of residue as described in claim 1, characterized in that: Bubble generators (12) are installed at the bottom of the first bubble pool (2-1) and the second bubble pool (3-1). The bubble generators (12) are located in the bottom area below the mesh claw conveyor belt (7). The bubble generators (12) are provided with bubble holes for blowing compressed air into the pool. The pipes of the bubble generators (12) first extend upward to 10-15cm above the horizontal plane in the pool, and then connect to an external air pump to form a U-shaped anti-backflow air path structure.

4. The dishwasher device with dual bubbling tank that requires no pre-washing and no scraping as described in claim 3, characterized in that: The bubble generator (12) has non-uniformly distributed bubble holes, wherein the hole spacing at the end away from the air pump is smaller than the hole spacing at the end closer to the air pump.

5. A dishwasher device with a double bubbling tank that requires no pre-washing and no scraping, as described in claim 1, is characterized in that: Electric auxiliary heating pipes (13) are respectively installed below the bodies of the first bubbling pool (2-1) and the second bubbling pool (3-1).

6. The dishwasher device with dual bubbling tank that requires no pre-washing and no scraping as described in claim 1, characterized in that: The second bubbling pool (3-1) is provided with an overflow port I (3-1-1), and the first bubbling pool (2-1) is provided with an overflow water inlet I (2-1-1). The overflow port I (3-1-1) is located higher than the overflow water inlet I (2-1-1) and the two are connected to each other, so that the water in the second bubbling pool (3-1) can overflow into the first bubbling pool (2-1).

7. A dishwasher device with a double-bubbling tank that requires no pre-washing and no scraping, as described in claim 1, is characterized in that: The terminal spray slag removal system (6) includes a water collection hopper (6-1) and an upper spray assembly (6-3) and a lower spray assembly (6-4) located above the water collection hopper (6-1). The upper spray assembly (6-3) and the lower spray assembly (6-4) are used to spray water downward and upward respectively to form a double-sided surround spray. A filter device (6-2) is connected to the bottom of the water collection hopper (6-1).

8. A dishwasher device with a double-bubbling tank that requires no pre-washing and no scraping, as described in claim 7, is characterized in that: The water collection hopper (6-1) is provided with an overflow port II (6-1-1), and the second bubbling tank (3-1) is provided with an overflow water inlet II (3-1-2). The overflow port II (6-1-1) is positioned higher than the overflow water inlet II (3-1-2) and the two are connected to each other so that the spray wastewater filtered by the filter device (6-2) can overflow into the second bubbling tank (3-1).

9. A dishwasher device with a double bubbling tank that requires no pre-washing and no scraping, as described in claim 1, characterized in that: The surface of the mesh claw conveyor belt (7) is provided with an anti-drop mesh claw structure (7-1) for firmly clamping the food frame and tableware. The mesh claw conveyor belt (7) is provided with pulleys (7-2) that are adapted to the conveyor belt track (10) on both sides. A meshing groove (7-3) is formed between two adjacent pulleys (7-2).

10. A dishwasher device with a double bubbling tank that requires no pre-washing and no scraping, as described in claim 1, characterized in that: The feed rack (4) and the discharge rack (5) are equipped with a conveyor drive device (8) and a conveyor belt tensioning device (9) for driving and adjusting the claw conveyor belt (7). The transmission drive device (8) includes a drive motor (8-1), a transmission shaft (8-2), and transmission gears (8-3) fixed at both ends of the transmission shaft (8-2). The output of the drive motor (8-1) is connected to one end of the transmission shaft (8-2), and the transmission gears (8-3) are adapted to the meshing grooves (7-3) on both sides of the claw conveyor belt (7). The conveyor belt tensioning device (9) includes a tensioning mounting frame (9-1) fixed on the frame (1). A tensioning slider (9-2) is slidably connected to the tensioning mounting frame (9-1). One side of the tensioning slider (9-2) is connected to the tensioning mounting frame (9-1) through a tension adjusting screw (9-5) and a nut. A tensioning wheel shaft (9-3) is connected to the tensioning slider (9-2). A tensioning wheel (9-4) is rotatably supported on the tensioning wheel shaft (9-3). The tensioning wheel (9-4) is adapted to the meshing tooth grooves (7-3) on both sides of the claw conveyor belt (7).

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