Commercial dish washing machine

Abstract

The utility model relates to the technical field of dish-washing machines, in particular to a commercial dish-washing machine which comprises a control mechanism and a rack, the control mechanism comprises a safety switch and a controller, the safety switch and the controller are in electric connection or signal connection, a frame is arranged on the rack, a cleaning mechanism is arranged on the frame, and the cleaning mechanism is arranged on the rack. The cleaning mechanism is in electric connection or signal connection with the controller, the side edge of the frame is movably connected with a maintenance cover, the maintenance cover can make contact with the rack or be away from the rack, the safety switch comprises a magnetic piece and a magnetic induction piece, and the magnetic piece or the magnetic induction piece is arranged on the maintenance cover. The magnetic induction piece matched with the magnetic piece or the magnetic piece matched with the magnetic induction piece is arranged on the rack; a worker needs to open the maintenance cover during maintenance, after the maintenance cover is far away from the rack, namely when the maintenance cover is not in contact with the rack, the safety switch is started, and the controller controls the cleaning mechanism to stop working, so that the cleaning mechanism can be effectively prevented from running when the maintenance worker operates the commercial dish washing machine.

Description

Technical Field

[0001] This disclosure relates to the field of dishwasher technology, and in particular to a commercial dishwasher. Background Technology

[0002] With economic development and social progress, dishwashers are gradually becoming more intelligent. Using a dishwasher saves personal time, as it has strong cleaning power and can thoroughly eliminate bacteria on the surface of tableware. Dishwashers are simple to operate yet powerful, meeting multiple needs such as washing, drying, and sterilization, providing great convenience to people's daily lives. Nowadays, people use dishwashers more and more frequently. Dishwashers can be categorized by purpose into commercial and household dishwashers. Commercial dishwashers are generally used in hotels, restaurants, and similar establishments, while household dishwashers are only suitable for homes and mainly come in two types: cabinet and countertop.

[0003] Commercial dishwashers include a cleaning mechanism, which requires regular maintenance. Before performing maintenance or repairs on the cleaning mechanism, the dishwasher must be turned off to prevent burns from the hot water sprayed from inside the dishwasher. Because commercial dishwashers are generally long, it's difficult for someone at the end of the dishwasher to notice when a repairman is performing maintenance or repairs on the cleaning mechanism. They might then start the dishwasher, potentially scalding the worker with the hot water sprayed from the cleaning mechanism. Utility Model Content

[0004] In view of the shortcomings or problems existing in the prior art, this disclosure provides a commercial dishwasher that can effectively prevent the cleaning mechanism from operating while maintenance workers are working on the commercial dishwasher.

[0005] The technical solution adopted by this disclosure to solve the above-mentioned technical problems is as follows: a commercial dishwasher, including a control mechanism and a frame, wherein the control mechanism includes a safety switch and a controller, the safety switch and the controller being electrically or signal-connected, a frame is provided on the frame, a cleaning mechanism is provided on the frame, the cleaning mechanism being electrically or signal-connected to the controller, a maintenance cover is movably connected to the side of the frame, the maintenance cover being able to contact with or move away from the frame, the safety switch including a magnetic component and a magnetic induction component, the magnetic component or the magnetic induction component being provided on the maintenance cover, and a magnetic induction component cooperating with the magnetic component or a magnetic component cooperating with the magnetic induction component being provided on the frame.

[0006] In a preferred embodiment, the magnetic induction element is disposed on the outer side of the frame, and the magnetic component is disposed on the inner side of the maintenance cover. Since the magnetic induction element is connected to wiring, placing it on the outer side of the frame prevents water sprayed from the cleaning mechanism from splashing onto it, thus enhancing safety.

[0007] In a preferred embodiment, the maintenance cover is provided with a sliding rod, and the frame is provided with a sliding groove. The sliding rod slides along the sliding groove to make the maintenance cover contact with or move away from the frame.

[0008] In a preferred embodiment, the frame is provided with a first support frame and a second support frame, the second support frame being disposed close to the frame, and the first support frame being disposed above the second support frame. The cleaning mechanism includes a first cleaning component and a second cleaning component, the first cleaning component being disposed on the first support frame, and the second cleaning component being disposed on the second support frame. The first support frame and the second support frame are respectively used to support and fix the first cleaning component and the second cleaning component, so as to make the first cleaning component and the second cleaning component more stable during operation.

[0009] In a preferred embodiment, the first cleaning assembly includes a first fixing frame and a plurality of first cleaning arms. The first fixing frame is disposed on a first support frame, and the first cleaning arms are mounted on the first fixing frame. The first cleaning arms are provided with a plurality of downward-facing first cleaning holes.

[0010] In a preferred embodiment, the second cleaning assembly includes a second fixing frame and a plurality of second cleaning arms. The second cleaning arms and the first cleaning arms are arranged opposite to each other. The second fixing frame is disposed on a second support frame, and the second cleaning arms are mounted on the second fixing frame. The second cleaning arms are provided with a plurality of upward-facing second cleaning holes.

[0011] In a preferred embodiment, a water treatment mechanism is provided on the frame, located below the cleaning mechanism. The water treatment mechanism includes a guide plate and a water tank. The water tank is located on the side of the guide plate and is used to store water splashed by the cleaning mechanism. The guide plate is inclined on the frame and is used to guide the water splashed on it by the cleaning mechanism to the water tank.

[0012] In a preferred embodiment, the water treatment mechanism includes a first filter element disposed at the opening of the water tank. The first filter element is used to filter the water entering the water tank. The water in the water tank is to be reused, and the first filter element performs preliminary filtration on the water entering the water tank to remove large particulate impurities.

[0013] In a preferred embodiment, the water tank is provided with a mounting hole for connecting a water pump. The water pump draws water from the tank to the cleaning mechanism. The water treatment mechanism further includes a second filter element disposed at the mounting hole. The second filter element is used to finely filter the water in the tank that is about to enter the water pump, preventing damage to the water pump due to poor water quality and further ensuring the purity of the water entering the cleaning mechanism, thereby improving the cleaning effect on the tableware.

[0014] In a preferred embodiment, the inner wall of the water tank is provided with a first liquid level sensor and a second liquid level sensor for sensing the water level in the water tank. The first liquid level sensor and the second liquid level sensor are respectively connected to a controller, and the controller is connected to an early warning component. The first liquid level sensor is located above the second liquid level sensor.

[0015] As a preferred embodiment, the inner wall of the water tank is also provided with an overflow port, and the overflow port is set at a height higher than the first liquid level sensor.

[0016] In a preferred embodiment, a drain outlet is provided at the bottom of the water tank, a drain pipe is installed on the drain outlet, and an overflow structure is provided on the drain pipe, with the overflow structure facing the overflow outlet.

[0017] Compared to existing products, this product features a magnetic or magnetic induction element on the maintenance cover, and a magnetic induction element or a magnetic element that works in conjunction with the magnetic element on the frame. When a worker needs to open the maintenance cover during repair or maintenance, and the cover is no longer in contact with the frame, the safety switch activates, and the controller stops the cleaning mechanism. This effectively prevents the cleaning mechanism from operating while the dishwasher is being used. The safety switch in this application uses the Hall effect principle, which is small, easy to install, and resistant to oil stains, water vapor, high temperatures, and corrosion. It will not be affected by oil stains or water vapor. Attached Figure Description

[0018] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is one of the structural schematic diagrams of a commercial dishwasher disclosed herein;

[0020] Figure 2 This is the second structural schematic diagram of a commercial dishwasher disclosed herein;

[0021] Figure 3 This is the third structural schematic diagram of a commercial dishwasher disclosed herein;

[0022] Figure 4 This is the fourth structural schematic diagram of a commercial dishwasher disclosed herein;

[0023] Figure 5 This is the fifth structural schematic diagram of a commercial dishwasher disclosed herein;

[0024] Figure 6 This is a public announcement Figure 5 A magnified view of a portion of point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Frame; 2. Frame; 3. Maintenance cover; 4. Magnetic induction element; 5. Magnetic element; 6. Water tank; 7. Overflow port; 8. Guide plate; 9. Water pump; 10. First filter element; 11. First support frame; 12. First fixing frame; 13. First cleaning arm; 14. Second support frame; 15. Second fixing frame; 16. Second cleaning arm; 17. Drainage pipe; 18. First liquid level sensor; 19. Second liquid level sensor; 20. Heating tube; 21. Overflow structure; 22. Second filter element. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0028] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0029] Commercial dishwashers require regular maintenance of their cleaning mechanisms, and the primary filter needs frequent cleaning or replacement. If someone else starts the dishwasher unknowingly while a repairman is performing these operations, the hot water sprayed from the cleaning mechanism could potentially scald the repairman's skin, posing a significant safety hazard. Therefore, if... Figure 1 and Figure 3As shown, this disclosure provides a commercial dishwasher, including a control mechanism and a frame 1. The control mechanism includes a safety switch and a controller, which are electrically or signal-connected. A frame 2 is mounted on the frame 1, and a cleaning mechanism is mounted on the frame 2. The cleaning mechanism is electrically or signal-connected to the controller. A maintenance cover 3 is movably connected to the side of the frame 2, and the maintenance cover 3 can contact or move away from the frame 1. The safety switch includes a magnetic element 5 and a magnetic induction element 4. The magnetic element 5 or the magnetic induction element 4 is mounted on the maintenance cover 3, and the magnetic induction element 4, which cooperates with the magnetic element 5, or the magnetic element 5, which cooperates with the magnetic induction element 4, is mounted on the frame 1. Specifically, in this disclosure, the magnetic element 5 is a magnet, and the magnetic induction element 4 is a magnetic sensor. When workers are repairing or maintaining a commercial dishwasher, they need to open the maintenance cover 3. As the maintenance cover 3 is opened, it is gradually moved away from the frame 1 (i.e., when the maintenance cover 3 is not in contact with the frame 1). The safety switch is activated, and the controller stops the cleaning mechanism. This effectively prevents the cleaning mechanism from running while the maintenance worker is operating the commercial dishwasher. The safety switch in this application is based on the Hall effect principle. It is not only small and easy to install, but also resistant to oil stains, water vapor, high temperature, and corrosion. It will not be affected by the corrosion of oil stains and water vapor.

[0030] Furthermore, the magnetic induction element 4 is located on the outside of the frame 1, and the magnetic element 5 is located on the inside of the maintenance cover 3. Since the magnetic induction element 4 is connected to wiring, placing the magnetic induction element 4 on the outside of the frame 1 can prevent water sprayed by the cleaning mechanism from splashing onto the magnetic induction element 4, making it safer to use.

[0031] In some embodiments, the upper end of the maintenance cover 3 is hinged to the frame 2. Under normal circumstances (when the commercial dishwasher is working normally), the lower end of the maintenance cover 3 is in contact with the frame 1. At this time, the magnetic induction element 4 can sense the magnetic element 5. When maintenance or repair is required, the maintenance worker must open the maintenance cover 3 to perform the operation. After the maintenance cover 3 is opened, the magnetic element 5 on the maintenance cover 3 is moved away from the magnetic induction element 4 on the frame 1, and the magnetic induction element 4 can no longer sense the magnetic element 5. At this time, the magnetic induction element 4 transmits a signal to the controller, and the controller controls the cleaning mechanism to stop working. Even if someone accidentally touches the working switch of the cleaning mechanism, the cleaning mechanism will not work. As long as the maintenance cover 3 is in the open state, the cleaning mechanism will not work, thereby avoiding injury to the maintenance worker caused by the operation of the cleaning mechanism.

[0032] In some embodiments, the maintenance cover 3 is slidably connected to the frame 2. Specifically, sliding rods are provided on both sides of the maintenance cover 3, and corresponding grooves are provided on the frame 2. The sliding rods slide up and down along the grooves to make the maintenance cover 3 contact or move away from the frame 1. When the maintenance cover 3 slides down, the maintenance cover 3 gradually approaches the frame 1, and when the maintenance cover 3 slides to its lowest point, its bottom contacts the frame 1.

[0033] like Figure 2 and Figure 3 As shown, in one embodiment of this disclosure, a first support frame 11 and a second support frame 14 are provided on the frame 2. The second support frame 14 is located close to the frame 1, and the first support frame 11 is located above the second support frame 14. The cleaning mechanism includes a first cleaning component and a second cleaning component. The first cleaning component is located on the first support frame 11, and the second cleaning component is located on the second support frame 14. The first support frame 11 and the second support frame 14 are used to support and fix the first cleaning component and the second cleaning component, respectively, so that the first cleaning component and the second cleaning component are more stable when working. Specifically, the first cleaning component includes a first fixing frame 12 and a plurality of first cleaning arms 13. The first fixing frame 12 is located on the first support frame 11, and the first cleaning arms 13 are mounted on the first fixing frame 12. The first cleaning arms 13 are provided with a plurality of downward-facing first cleaning holes. The second cleaning assembly includes a second fixing frame 15 and several second cleaning arms 16. The second cleaning arms 16 are arranged opposite to the first cleaning arms 13. The second fixing frame 15 is mounted on the second support frame 14, and the second cleaning arms 16 are mounted on the second fixing frame 15. Each second cleaning arm 16 has several upward-facing second cleaning holes. When the cleaning mechanism is working, the tableware is located between the first cleaning arms 13 and the second cleaning arms 16, and the first cleaning arms 13 and the second cleaning arms 16 clean the tableware simultaneously.

[0034] Please refer to Figure 4 As shown, in one embodiment of this disclosure, a water treatment mechanism is provided on the frame 1, located below the cleaning mechanism. Specifically, the water treatment mechanism includes a guide plate 8 and a water tank 6. The water tank 6 is disposed on the side of the guide plate 8 and is used to store water splashed by the cleaning mechanism. The guide plate 8 is inclined on the frame 1 and is used to guide the water splashed on it by the cleaning mechanism to the water tank 6. The water treatment mechanism includes a first filter element 10, which is a filter screen. The first filter element 10 is disposed at the opening of the water tank 6 and is used to filter the water entering the water tank 6. The water in the water tank 6 is to be reused. The first filter element 10 performs preliminary filtration on the water entering the water tank 6 to remove large particles of impurities. The first filter element 10 is disposed on the side of the guide plate 8, and the guide plate 8 is inclined to one side of the first filter element 10 so as to guide the water splashed on it by the cleaning mechanism to the first filter element 10 and then into the water tank 6.

[0035] Please refer to the following: Figure 5 and Figure 6As shown, the water tank 6 further includes mounting holes on its side for connecting the water pump 9. To make efficient use of space, the water pump 9 is positioned directly below the guide plate 8. The water pump 9 draws water from the water tank 6 to the cleaning mechanism. The water treatment mechanism also includes a second filter element 22, which is positioned at the mounting hole in the water tank 6. The second filter element 22 performs fine filtration of the water in the water tank 6 that is about to enter the water pump 9. This prevents damage to the water pump 9 due to poor water quality and further ensures the purity of the water entering the cleaning mechanism, thereby improving the cleaning effect on tableware. Specifically, the second filter element 22 is a commonly used filter on the market. To further improve the cleaning effect, a silver ion module can be installed in the filter to sterilize and disinfect the water in the water tank 6.

[0036] Specifically, the inner wall of the water tank 6 is equipped with a first liquid level sensor 18 and a second liquid level sensor 19 for sensing changes in the water level in the water tank 6. The first liquid level sensor 18 and the second liquid level sensor 19 are respectively connected to the controller. The controller is connected to an early warning component, and the first liquid level sensor 18 is located above the second liquid level sensor 19. When the water in the water tank 6 is higher than the first liquid level sensor 18, the first liquid level sensor 18 transmits a first signal to the controller. After receiving the signal, the controller activates the early warning component to sound an alarm, reminding the user that the water level is too high. When the water in the water tank 6 is lower than the second liquid level sensor 19, the second liquid level sensor 19 transmits a second signal to the controller. After receiving the signal, the controller activates the early warning component to sound an alarm, reminding the user that the water level is too low.

[0037] Furthermore, the inner wall of the water tank 6 is also provided with an overflow port 7, which is positioned higher than the first liquid level sensor 18. When the water level in the water tank 6 is too high, reaching the position of the overflow port 7, the water in the water tank 6 flows out from the overflow port 7.

[0038] Preferably, the bottom of the water tank 6 is provided with a drain outlet, and a drain pipe 17 is installed at the drain outlet. The drain pipe 17 extends vertically from the bottom of the water tank 6 towards the first filter element 10. An overflow structure 21 is provided at the top of the drain pipe 17, which is positioned directly opposite the overflow outlet 7. Specifically, the overflow outlet 7 is D-shaped, and the overflow structure 21 is a perforated structure set on the drain pipe 17. Water entering the overflow structure 21 is discharged from the drain pipe 17. If the water level in the water tank 6 is too high and cannot be discharged in time by the overflow outlet 7 alone, water will be discharged simultaneously through the overflow structure 21 and the overflow outlet 7.

[0039] like Figure 5 and Figure 6 As shown, in one embodiment of this disclosure, two heating tubes 20 are also provided at the bottom of the water tank 6 for heating the water in the water tank 6.

[0040] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A commercial dishwasher, characterized in that, The system includes a control mechanism and a frame (1). The control mechanism includes a safety switch and a controller. The safety switch and the controller are electrically or signal connected. A frame (2) is provided on the frame (1). A cleaning mechanism is provided on the frame (2). The cleaning mechanism is electrically or signal connected to the controller. A maintenance cover (3) is movably connected to the side of the frame (2). The maintenance cover (3) can contact or move away from the frame (1). The safety switch includes a magnetic element (5) and a magnetic induction element (4). The magnetic element (5) or the magnetic induction element (4) is provided on the maintenance cover (3). The magnetic induction element (4) that cooperates with the magnetic element (5) or the magnetic element (5) that cooperates with the magnetic induction element (4) is provided on the frame (1).

2. The commercial dishwasher according to claim 1, characterized in that, The magnetic induction element (4) is disposed on the outside of the frame (1), and the magnetic element (5) is disposed on the inside of the maintenance cover (3).

3. The commercial dishwasher according to claim 1, characterized in that, The maintenance cover (3) is provided with a sliding rod, and the frame (2) is provided with a sliding groove. The sliding rod slides along the sliding groove to make the maintenance cover (3) contact or move away from the frame (1).

4. The commercial dishwasher according to claim 1, characterized in that, The frame (2) is provided with a first support frame (11) and a second support frame (14). The second support frame (14) is located close to the frame (1). The first support frame (11) is located above the second support frame (14). The cleaning mechanism includes a first cleaning component and a second cleaning component. The first cleaning component is located on the first support frame (11), and the second cleaning component is located on the second support frame (14).

5. The commercial dishwasher according to claim 1, characterized in that, A water treatment mechanism is provided on the frame (1) and is located below the cleaning mechanism. The water treatment mechanism includes a guide plate (8) and a water tank (6). The water tank (6) is located on the side of the guide plate (8) and is used to store the water splashed by the cleaning mechanism. The guide plate (8) is inclined on the frame (1) and is used to guide the water splashed on it by the cleaning mechanism to the water tank (6).

6. The commercial dishwasher according to claim 5, characterized in that, The water treatment device includes a first filter element (10), which is disposed at the opening of the water tank (6) and is used to filter the water entering the water tank (6).

7. The commercial dishwasher according to claim 5 or 6, characterized in that, The water tank (6) is provided with an installation hole for connecting a water pump (9). The water pump (9) is used to pump water from the water tank (6) to the cleaning mechanism. The water treatment mechanism also includes a second filter element (22), which is located at the installation hole.

8. The commercial dishwasher according to claim 5, characterized in that, The inner wall of the water tank (6) is provided with a first liquid level sensor (18) and a second liquid level sensor (19) for sensing the water level in the water tank (6). The first liquid level sensor (18) and the second liquid level sensor (19) are respectively connected to the controller, which is connected to an early warning component. The first liquid level sensor (18) is located above the second liquid level sensor (19).

9. The commercial dishwasher according to claim 8, characterized in that, The inner wall of the water tank (6) is also provided with an overflow port (7), and the overflow port (7) is set at a height higher than the first liquid level sensor (18); the bottom of the water tank (6) is provided with a drain port, and a drain pipe (17) is installed on the drain port. An overflow structure (21) is provided on the drain pipe (17), and the overflow structure (21) is set directly opposite the overflow port (7).

Images