Water recovery structure of steamed stuffed bun steaming machine and steamed stuffed bun steaming machine

By designing multiple diversion grooves and drainage holes in the steamer, the health hazard caused by the mixing of condensed water and incoming water is solved, convenient cleaning is achieved, and the hygiene performance of the equipment is improved.

CN223298934UActive Publication Date: 2025-09-05NINGBO ROTOR ELECTRICAL APPLIANCES CO LTD
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Patent Information

Application Number
CN202422294694.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-09-05
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

The water recycling structure design of the existing steamed bun machine causes condensed water to mix with the incoming water, which is difficult to clean and poses health risks and odor problems.

Method used

Multiple diversion grooves and drainage holes are designed so that condensed water can be quickly diverted to the water draw box and collected centrally through the water draw box, simplifying the cleaning process.

Benefits of technology

It effectively avoids the accumulation of condensed water in the equipment, improves the hygiene performance and ease of use of the equipment, and reduces the difficulty of cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The steamed stuffed bun steaming machine water recycling structure comprises a base, a water storage box and an inner base plate, the water storage box is arranged in the base, the inner base plate covers the water storage box to form a water storage chamber, a heating part is arranged in the water storage chamber, liquid water in the water storage chamber is evaporated through temperature rise and heat transfer of the heating part, and the water in the water storage chamber is recycled. The water storage chamber is provided with a steam outlet, the steam outlet is located in the middle of the inner base plate, the middle of the inner base plate is higher than the peripheral edge, a first flow guide groove is annularly formed in the edge of the upper surface of the inner base plate, and a first drainage hole is formed in the groove bottom of the first flow guide groove. The water recycling structure is convenient to clean and drain, so that the use convenience and sanitation of the steamed stuffed bun steaming machine are improved. The water recycling structure has good drainage and recycling capacity, the problem of water accumulation is effectively avoided, and the maintenance difficulty is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a water recovery structure of a bun steamer and the bun steamer. Background Art

[0002] Steamed bun machines are a common type of cooking equipment used in modern food processing, widely used in the catering industry, supermarkets, and homes. Currently, steamed bun machines on the market use water as a medium and consist of two main components: a heating chamber and a steam chamber. The heating chamber is located below the steam chamber. A stainless steel barrel with a built-in heating pipe is installed in the heating chamber and connected to an external water inlet pipe. The water inlet pipe fills the stainless steel barrel with water, which is then heated by the heating pipe, generating steam that enters the steam chamber and steams the food above, such as buns and steamed bread. A large amount of steam accumulates in the steamer. When saturated, the hot steam condenses on shelves, cabinet glass, and other surfaces, forming a large amount of condensate. This condensate, mixed with food debris and oil, flows back into the stainless steel barrel and mixes with the clean water injected into the water inlet pipe. The existing stainless steel barrel is difficult to disassemble and clean, causing odor and posing a safety hazard.

[0003] In order to address the deficiencies in the prior art, an improvement plan is proposed for a utility model patent for a heating and water recovery structure and a bun steaming machine with application number 2023227334087. The water receiving tray of the bun steaming machine is integral and installed at the bottom of the base, which is inconvenient to clean and disassemble. The water receiving tray receives condensed water mixed with food debris and oil. The middle part of the water receiving tray is low and the edge is high, and the steam generator is located in the middle of the water receiving tray. Although the steam cover and the water retaining ring can prevent some sewage from entering the stainless steel barrel, the steam cover is immersed in the condensed water mixed with food debris and oil for a long time, which is easy to breed bacteria and produce odor, posing a health hazard.

[0004] Therefore, the present application proposes a water recovery structure of a bun steamer and a bun steamer, which optimizes the water recovery structure and water receiving tray design of the bun steamer. Utility Model Content

[0005] The purpose of this utility model is to provide a water recovery structure for a bun steamer and a bun steamer. By designing multiple diversion grooves and drainage holes, the recovered water can be smoothly diverted to the water drawer, making it easier to clean and drain, thereby improving the ease of use and hygiene of the bun steamer. The water recovery structure has excellent drainage and recovery capabilities, effectively preventing water accumulation and reducing maintenance difficulties.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A water recovery structure for a steamed bun machine comprises a base, a water storage box and an inner chassis, wherein the water storage box is arranged in the base, and the inner chassis cover is arranged on the water storage box to form a water storage chamber, wherein a heating element is arranged in the water storage chamber, and liquid water in the water storage chamber is evaporated by heat transfer from the heating element, and a steam outlet is provided in the water storage chamber, wherein the steam outlet is located in the middle of the inner chassis, and the middle of the inner chassis is higher than the surrounding edges, and a first guide groove is provided around the edge of the upper surface of the inner chassis, and the bottom of the first guide groove has a first drainage hole.

[0008] Preferably, the top edge of the water storage box has an integral lateral extension structure, a second guide groove is provided on the lateral extension structure, the bottom of the second guide groove has a second drainage hole, the first drainage hole is located above the second guide groove, or the first drainage hole is correspondingly located above the second drainage hole.

[0009] Preferably, the extension structure includes a first extension surface and a second extension surface of different relative heights, the second extension surface is higher than the first extension surface, and the outer edge of the first extension surface is provided with an upwardly bent annular connecting portion for connecting with the second extension surface; the inner side of the first extension surface is provided with an upwardly extending annular ridge, and the annular ridge cooperates with the annular connecting portion to form the second guide groove on the first extension surface.

[0010] Preferably, a recycled water box is provided below or inside the base, and the second drainage hole guides the recycled water into the recycled water box through a guide pipe.

[0011] Preferably, the guide pipe is fixedly installed below the extension structure and is located outside the water storage box.

[0012] Preferably, the upper end surface of the water recovery box has a water inlet hole, and the water inlet hole is located directly below the lower end of the guide pipe.

[0013] Preferably, the second extension surface is provided with a third guide groove, and the third guide groove is communicated with the second guide groove.

[0014] Preferably, the water storage box and the inner chassis are both arranged at an angle, the first drainage hole is arranged at the lowest point of the inner chassis, and the second drainage hole is arranged at the lowest point of the extension structure.

[0015] Preferably, a handle is provided on the outer end of the recycling water box, and a pouring port is provided on the top surface of the recycling water box, and the pouring port is located at a side corner of the recycling water box close to the handle.

[0016] A bun steamer comprises the above-mentioned bun steamer water recovery structure.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. Through the design of multiple guide grooves (such as the first, second, and third guide grooves) and drainage holes, condensed water and recycled water can be quickly introduced into the water pump box to avoid water accumulation inside or on the surface of the equipment, thereby preventing bacterial growth and odor generation, and improving the hygiene performance of the equipment.

[0019] 2. The water recycling structure collects condensed water through a pumping water box. Users only need to clean the pumping water box regularly and do not need to frequently clean the inside of the equipment, which simplifies maintenance operations and greatly reduces the difficulty of cleaning.

[0020] 3. The pull-out water box is equipped with a handle and a pouring port. The design is simple and easy to operate. Users can easily remove the water box and pour out the recycled water, reducing spills and troubles during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of the steamed bun machine in the present invention;

[0023] Figure 2 This is a schematic structural diagram of the base in the present utility model;

[0024] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0025] Figure 4 This is an exploded schematic diagram of the base in the present invention.

[0026] In the figure: 1. base; 11. outer shell; 12. water storage box; 1211. first extension surface; 1212. second extension surface; 1213. annular connecting portion; 1214. annular ridge; 122. second guide groove; 123. second drainage hole; 124. third guide groove; 13. inner chassis; 131. steam outlet; 132. first guide groove; 133. first drainage hole; 14. heating element; 15. isolation cover; 16. guide pipe; 2. cabinet; 3. water recovery box; 31. water inlet; 32. handle; 33. pouring spout. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] The invention discloses a steamed bun machine, which aims to improve the use efficiency of the steamed bun machine, reduce energy consumption and solve the problem of inconvenience in cleaning.

[0030] Combine Figure 1-4 As shown, the steamed bun machine includes a base 1 and a cabinet 2. The cabinet 2 is preferably a glass cabinet with a chamber inside for arranging shelves to place foods such as buns and steamed bread that need to be heated and steamed.

[0031] The base 1 includes an outer housing 11 that fits within the cabinet. A water storage box 12 is housed within the outer housing 11. An inner chassis 13 is located above the water storage box 12. The inner chassis 13 and the water storage box 12 cooperate to form a water storage chamber. In this embodiment, the water storage box 12 is completely contained within the outer housing 11. In another embodiment, the upper end of the water storage box 12 may extend upward and protrude beyond the outer housing 11 of the base 1.

[0032] A heating element 14 is located within the water storage chamber. Preferably, heating element 14 is a heating tube or a heating block. The upper end of heating element 14 is positioned within the water storage chamber, while the lower end extends downward from the water storage box 12 and is electrically connected to the control module. The connection between heating element 14 and water storage box 12 is sealed to ensure no water leaks during operation. The lower end of heating element 14 is also electrically connected to the control module, which intelligently controls the heating and heat preservation functions by adjusting the operating state of heating element 14. Heat transfer from heating element 14 evaporates the liquid water within the water storage chamber. A steam outlet 131 is located in the middle of the inner chassis 13, connecting the water storage chamber to the chamber within the cabinet 2. Those skilled in the art will appreciate that steam outlet 131, located in the middle of the inner chassis 13, allows steam generated in the water storage chamber to quickly enter the chamber within the cabinet 2, directly affecting the food. The steam outlet 131 is designed in the middle of the inner chassis 13 to ensure that the steam can be evenly diffused throughout the chamber, fully heating the food. At the same time, the central design also helps to prevent steam from accumulating at the edges and reduce the backflow of condensed water at the edges. By concentrating the position of the steam outlet 131, this design optimizes the flow path of the steam, thereby shortening the heating time, allowing the steam to act on the food more quickly, and improving the overall heating efficiency of the equipment. At the same time, the intelligent control module can adjust the operation of the heating element 14 in a timely manner according to the operating status of the steamed bun steamer, thereby effectively reducing energy consumption during the insulation stage.

[0033] At least two heating elements 14 are provided, and in this embodiment, three heating elements 14 are provided, distributed at different positions in the water storage chamber. The provision of multiple heating elements 14 can quickly heat the liquid water in the water storage chamber, generating sufficient steam to ensure that the food is heated quickly and evenly during the cooking process.

[0034] The control module is electrically connected to each heating element 14 and is capable of individually controlling the operating status of each heating element 14. The control module can utilize a traditional manual switch or an intelligent control system. The intelligent control module automatically adjusts the number and duration of heating elements 14 operating based on the steamer's usage phase. For example, during the steaming phase, the control module activates multiple heating elements 14 to ensure rapid steam generation and accelerate the cooking process. During the keep-warm phase, the control module may activate only one heating element 14 to reduce energy consumption while maintaining an appropriate temperature and preventing the food from cooling rapidly.

[0035] The steamer's intelligent control system allows it to flexibly adjust the operating status of the heating elements 14 at different stages. During the steaming phase, multiple heating elements 14 work together to quickly cook the food; during the warming phase, only one heating element 14 is active, significantly reducing power consumption and improving the device's energy efficiency. This flexible control not only saves energy but also prevents food from losing its flavor due to overheating.

[0036] The control module can be a separate switch, allowing the user to manually adjust the operating state of the heating element 14 according to needs, or an intelligent control module can be used to enable the device to automatically adjust the number and operating time of the heating elements 14 according to the state of the food. This automated control improves user convenience and optimizes the energy saving effect of the steamed bun machine.

[0037] The water storage box 12 has at least one isolation cover 15, each housing at least one heater 14. In this embodiment, three isolation covers 15 are provided, each housing a heater 14. The multiple isolation covers 15 are integrally formed. The upper end of the isolation cover 15 cooperates with the inner chassis 13 to form a steam passage, while a gap is left between the lower end of the isolation cover 15 and the inner bottom surface of the water storage box 12 for liquid water to flow.

[0038] The main function of the isolation cover 15 is to isolate a portion of the water around the heating element 14 from other liquid water in the water storage chamber. Each heating element 14 is only responsible for heating a small portion of the water in the isolation cover 15, and will not directly heat all the liquid water in the entire water storage chamber. This design effectively reduces the amount of water that needs to be heated, allowing the water to reach boiling point faster, thereby generating steam more quickly. This allows the steamer to generate steam faster during use, shorten heating time, and improve work efficiency. The water in the isolation cover 15 is continuously heated and evaporated into steam. As steam is generated, the water level in the isolation cover 15 will drop, and the water in the water storage chamber will gradually enter the isolation cover 15 through the water holes or gaps provided, replenishing new water. In this way, steam can be generated continuously to maintain a stable cooking environment.

[0039] Those skilled in the art will appreciate that the vent and the isolation cover 15 may also be staggered, and the steam may be directed through a steam channel provided at the bottom of the inner chassis 13 .

[0040] Specifically, in this embodiment, the upper end of the isolation cover 15 is open, and a vent is provided on the inner chassis 13. The upper end of the isolation cover 15 is clamped with the inner chassis 13 so that the vent is connected to the isolation cover 15. The upper end of the isolation cover 15 does not exceed the inner chassis 13. The upper surface of the inner chassis 13 is covered with a steam cover. The steam cover and the inner chassis 13 are integrally formed, and a steam outlet 131 is provided on the side of the steam cover.

[0041] The upper end of the isolation cover 15 may also extend through the inner chassis 13 into the chamber, and a steam outlet 131 is provided on the side of the portion of the isolation cover 15 extending above the inner chassis 13 .

[0042] Those skilled in the art should understand that the lower end of the isolation cover 15 has a first water hole or a first water gap for liquid water to flow, or the isolation rib is provided with a second water hole or a second water gap for liquid water to flow, which can replace the gap between the lower end of the isolation cover 15 and the inner bottom surface of the water storage box 12.

[0043] The middle of the inner chassis 13 is higher than the surrounding edges. The edge of the inner chassis 13 has a first drainage hole 133. The lower part of the base 1 is provided with a recycled water box 3 to receive the recycled water discharged from the first drainage hole 133, or the first drainage hole 133 is connected to the guide pipe 16 to directly discharge the recycled water.

[0044] Example 2

[0045] A steamed bun machine, combined with Figure 1-4 As shown, by designing multiple diversion grooves and drainage holes, the recycled water can be smoothly diverted to the recycled water box 3, making it easy to clean and drain, thereby improving the convenience and hygiene of the steamer. This recycled water structure has excellent drainage and recycling capabilities, effectively avoiding water accumulation and reducing maintenance difficulties.

[0046] Inner chassis 13 and drainage trough design: A first drainage trough 132 is provided around the upper edge of the inner chassis 13 to collect condensed water generated during the food cooking process. This design effectively concentrates the condensed water, preventing it from spilling onto other components. A first drain hole 133 is located at the bottom of the trough to ensure smooth drainage of the condensed water.

[0047] Drainage mechanism: The first drain hole 133 is located at the lowest point of the inner chassis 13, ensuring that condensed water can flow naturally to the drain hole, reducing water accumulation and improving drainage efficiency. This design avoids condensed water residue and further reduces cleaning workload.

[0048] Design of the water storage box 12: The top edge of the water storage box 12 is designed with an integral horizontal extension structure. This extension structure, through its unique height difference and guide groove design, helps guide and drain condensed water. The horizontal extension structure is equipped with a second guide groove 122 and a third guide groove 124. The bottom of the second guide groove 122 is equipped with a second drainage hole 123.

[0049] The first drainage hole 133 is designed to be located above the second guide groove 122, or correspondingly located above the second drainage hole 123. This coordinated design of the drainage holes allows condensed water to flow smoothly from the first guide groove 132 into the second guide groove 122 and then be discharged to the recovered water box 3, ensuring a smooth drainage path.

[0050] Specifically, the transverse extension structure consists of a first extension surface 1211 and a second extension surface 1212 of different relative heights, with the second extension surface 1212 being higher than the first extension surface 1211. This height difference provides a natural path for water flow and diversion. The outer edge of the first extension surface 1211 is provided with an upwardly bent annular connecting portion 1213, which connects to the second extension surface 1212 to ensure structural stability. The inner side of the first extension surface 1211 is provided with an upwardly extending annular ridge 1214, which cooperates with the annular connecting portion 1213 to form a second diversion groove 122 on the first extension surface 1211.

[0051] The second extension surface 1212 is further provided with a third diversion trough 124, which communicates with the second diversion trough 122. This trough 124 is primarily designed to collect condensed water from the glass cabinet. During operation of the steamed bun steamer, steam comes into contact with the cooler glass surface, generating condensed water. To prevent this condensed water from flowing into or out of the machine and potentially impacting it, the third diversion trough 124 is strategically designed to collect and divert this condensed water. The third diversion trough 124 is located below the glass cabinet, ensuring that condensed water from the glass cabinet flows naturally into the third diversion trough 124. The third diversion trough 124 communicates with the second diversion trough 122. After being collected by the third diversion trough 124, the condensed water flows smoothly into the second diversion trough 122 and is ultimately directed through the drainage holes into the water recovery box 3, preventing condensed water from accumulating on or within the machine. This diversion design allows for centralized treatment of condensed water, reducing water stains and accumulation during use of the steamed bun steamer, effectively improving the cleanliness and service life of the machine.

[0052] Design of the recycled water box 3: A pull-out water box is provided at the lower part of the base 1, below the water storage box 12, for receiving recycled water. The second drain hole 123 guides the recycled water into the recycled water box 3 through the guide tube 16. The recycled water box 3 is designed with a water inlet hole 31 on the upper end surface, which is opposite to the lower end of the guide tube 16 to ensure that water can enter the water box smoothly. The guide tube 16 is fixedly installed below the transverse extension structure, located on the outside of the water storage box 12, to ensure that the structure is stable and does not affect the installation and use of other components. Pull design and pouring port 33: A handle 32 is provided on the outer end of the recycled water box 3 to facilitate users to easily remove the water box. A pouring port 33 is designed on the top surface of the water box, located on the side corner close to the handle 32, so that users can easily pour out the recycled water when cleaning the water box, reducing the risk of spillage.

[0053] To ensure smooth drainage, the water storage box 12 and the inner chassis 13 are both tilted, with the tilt angle allowing condensed water to flow naturally toward the drain hole. Alternatively, the second guide groove 122 and the first guide groove 132 have a gradient depth structure, allowing the first drain hole 133 to be located at the lowest point of the inner chassis 13, while the second drain hole 123 is located at the lowest point of the transverse extension structure. This design optimizes the drainage path and prevents water accumulation.

[0054] Those skilled in the art should understand that the flow guide tube 16 can be an integral tubular structure, or can be formed by splicing or plugging a plurality of tubes.

[0055] This water recovery structure, through the coordinated operation of the diversion trough, drainage holes, diversion tube 16, and water recovery tray 3, solves the water recovery and cleaning issues of traditional bun steamers, particularly the accumulation of condensed water and poor drainage. Through a rationally angled design and diversion system, this structure effectively prevents condensed water from accumulating, preventing bacterial growth and odor generation, thereby improving the steamer's hygienic performance. Furthermore, the pull-out water tray simplifies cleaning, making it easy for users to maintain the equipment and further enhancing the steamer's user experience.

[0056] Example 3

[0057] Combine the heating structure of multiple heating elements in Example 1 and the condensed water recovery structure in Example 2.

[0058] Example 4

[0059] The difference between this embodiment and embodiment 2 is that the water recovery box and the water storage box are both located in the base, and the water recovery box is located on one side of the water storage box.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water recovery structure for a steamed bun machine, characterized in that: The utility model comprises a base (1), a water storage box (12) and an inner bottom plate (13), wherein the water storage box (12) is arranged in the base (1), and the inner bottom plate (13) is covered on the water storage box (12) to form a water storage chamber, wherein a heating element (14) is arranged in the water storage chamber, and liquid water in the water storage chamber is evaporated by heat transfer caused by the heating element (14), and the water storage chamber is provided with a steam outlet (131), wherein the steam outlet (131) is located in the middle of the inner bottom plate (13), and the middle of the inner bottom plate (13) is higher than the surrounding edges, and a first guide groove (132) is provided around the edge of the upper surface of the inner bottom plate (13), and the bottom of the first guide groove (132) has a first drainage hole (133).

2. The water recovery structure of a steamed bun machine according to claim 1, characterized in that: The top edge of the water storage box (12) has an integral transverse extension structure, a second guide groove (122) is provided on the transverse extension structure, the bottom of the second guide groove (122) has a second drainage hole (123), the first drainage hole (133) is located above the second guide groove (122), or the first drainage hole (133) is correspondingly located above the second drainage hole (123).

3. The water recovery structure of a steamed bun machine according to claim 2, characterized in that: The extension structure comprises a first extension surface (1211) and a second extension surface (1212) of different relative heights, wherein the second extension surface (1212) is higher than the first extension surface (1211), and an outer edge of the first extension surface (1211) is provided with an upwardly bent annular connecting portion (1213) for connecting with the second extension surface (1212); an upwardly extending annular ridge (1214) is provided on the inner side of the first extension surface (1211), and the annular ridge (1214) cooperates with the annular connecting portion (1213) to form the second guide groove (122) on the first extension surface (1211).

4. The water recovery structure of a steamed bun machine according to claim 2, characterized in that: A recycled water box (3) is provided below or inside the base (1), and the second drainage hole (123) guides the recycled water into the recycled water box (3) through the guide pipe (16).

5. The water recovery structure of a steamed bun machine according to claim 4, characterized in that: The guide pipe (16) is fixedly installed below the extension structure and is located outside the water storage box (12).

6. The water recovery structure of a steamed bun machine according to claim 4, characterized in that: The upper end surface of the water recovery box (3) is provided with a water inlet hole (31), and the water inlet hole (31) is located directly below the lower end of the flow guide pipe (16).

7. The water recovery structure of a steamed bun machine according to claim 3, characterized in that: The second extension surface (1212) is provided with a third guide groove (124), and the third guide groove (124) is communicated with the second guide groove (122).

8. The water recovery structure of a steamed bun machine according to claim 7, characterized in that: The water storage box (12) and the inner bottom plate (13) are both arranged at an inclination, the first drainage hole (133) is arranged at the lowest point of the inner bottom plate (13), and the second drainage hole (123) is arranged at the lowest point of the extension structure.

9. The water recovery structure of a steamed bun machine according to claim 4, characterized in that: The outer end of the water recovery box (3) is provided with a handle (32), and the top surface of the water recovery box (3) is provided with a pouring port (33), and the pouring port (33) is located at a side corner of the water recovery box (3) close to the handle (32).

10. A bun steaming machine, characterized in that: The invention comprises the water recovery structure of a steamed bun machine according to any one of claims 1 to 9.