Steam heating structure with cleaning structure
By introducing a lifting and rotating structure for the output pipe into the steam heating structure, the output pipe is rotated into the cleaning cup for steam cleaning, which solves the problem of low cleaning efficiency of the output pipe and achieves efficient cleaning and uniform steam output.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杭州话饼智能科技有限公司
- Filing Date
- 2025-05-19
- Publication Date
- 2026-07-14
AI Technical Summary
The existing steam heating structure has low output pipe cleaning efficiency and cannot effectively clean the dirt on the outer surface.
A cleaning structure including an output pipe lifting structure and a rotating structure is designed. After heating, the output pipe is raised and lowered into the cleaning cup, and is cleaned by steam jetting through the annular cavity and outlet of the cleaning cup.
It improves the cleaning effect of the output pipe, simplifies the cleaning process, reduces steps, and enhances the uniformity of steam output and the tumbling effect of food.
Smart Images

Figure CN224483710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to food cooking and processing utensils, and more particularly to a steam heating structure with a cleaning structure. Background Technology
[0002] To improve dining convenience, the applicant designed a food vending machine, with publication number CN112716256A and title "A Steamed Food Machine," for use as a food preparation and vending machine. The steamed food machine heats and cooks the food containers using a steam heating structure. After use, the output pipe of the steam heating structure needs to be cleaned. Existing cleaning methods involve using steam output from the output pipe. However, the dirt on the output pipe is primarily on its outer surface. Cleaning via steam output from the pipe itself cannot directly impact the outer surface of the cleaning pipe, resulting in poor cleaning efficiency. Utility Model Content
[0003] The present invention aims to provide a steam heating structure with a good cleaning effect, which solves the problem of low cleaning efficiency in the existing steam heating structure that outputs steam through an output pipe for cleaning.
[0004] The above technical problems are solved by the following technical solution: A steam heating structure with a cleaning mechanism, comprising a vertically positioned output pipe connected to a steam source at its upper end and an output pipe lifting structure for driving the output pipe to rise and fall, characterized in that the cleaning mechanism includes a washing cup and an output pipe rotation structure. The output pipe rotation structure is used to rotate the output pipe above the washing cup. The washing cup has an annular cavity extending circumferentially within its peripheral wall. The annular cavity has an inlet and several outlets penetrating the inner circumferential surface of the washing cup. The outlets are distributed circumferentially within the washing cup. The washing cup is equipped with a drain pipe. In use, the inlet is connected to the steam source (steam generator). After the output pipe finishes heating the food in the food container, the output pipe lifting structure drives the output pipe to rise and pull it out of the food container. Then, the output pipe rotation structure drives the output pipe to rotate above the washing cup, and the output pipe lifting structure drives the output pipe to fall and insert it into the washing cup, allowing the steam source to supply steam to the washing cup, which is then ejected from the outlet to clean the output pipe. The inlet of the lifting pipe is connected to the outlet of the steam generator via a second control valve.
[0005] Preferably, the cleaning cup includes an upper section and a lower section. The upper end of the lower section has an outwardly flanged edge, and the upper surface of the outwardly flanged edge has a lower annular groove. The lower annular groove has several lower grooves penetrating the inner circumference of the lower section. The lower end of the upper section has an outwardly flanged edge, and the lower surface of the outwardly flanged edge has an upper annular groove. The upper annular groove has several upper grooves penetrating the inner circumference of the upper section. The outwardly flanged edge of the lower section is sealed and welded together with the outwardly flanged edge of the upper section. The upper and lower annular grooves enclose the annular cavity, and the upper and lower grooves enclose the outlet. The drain pipe is disposed on the bottom wall of the lower section. This design offers good ease of manufacturing the cleaning cup.
[0006] Preferably, the lower end of the output pipe is provided with a pointed tip for piercing the lid of the lunchbox. This allows the lid to be pierced via the steam input pipe during steam heating, eliminating the need for a separate lid-piercing structure and reducing the number of steps.
[0007] Preferably, the lower end face of the output pipe has a downward-facing end portion outlet, and the lower circumferential surface of the output pipe has a circumferential outlet. This improves the uniformity of the steam output chamber and allows the food to tumble through the steam, preventing it from sticking to the bottom of the bowl.
[0008] Preferably, the opening direction of the peripheral outlet is horizontal. This ensures good reliability when using steam to stir food.
[0009] Preferably, the system also includes a frame. The output pipe lifting structure includes a vertical guide rod, a lifting seat sleeved on the vertical guide rod, a vertical screw threaded onto the lifting seat, and a lifting motor that drives the vertical screw to rotate. The vertical screw is rotatably connected to the frame, and the lifting motor and the vertical guide rod are fixed to the frame. The output pipe rotating structure includes a rotary motor mounted on the lifting seat and a swing arm connected to the output shaft of the rotary motor. The output pipe is connected to the swing arm.
[0010] The utility model has the following advantages: by designing a cleaning cup with a related structure, steam and water are output to clean the output pipe, resulting in a good cleaning effect. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a right-side view of the present invention;
[0013] Figure 3 This is a schematic diagram of the cross-section of the cleaning cup.
[0014] In the diagram: lunch box 4, platform 44, output tube 46, output tube lifting structure 47, pointed end 48, end face outlet 49, circumferential face outlet 50, washing cup 51, output tube rotating structure 72, frame 58, vertical guide rod 59, lifting seat 60, vertical screw 61, lifting motor 62, rotating motor 63, swing arm 64, annular cavity 65, inlet 74, outlet 66, drain pipe 67, upper section 68, lower section 69, lower section outward flange 70, upper section outward flange 71, temperature detection rod 75. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] See Figures 1 to 3 A steam heating structure with a cleaning mechanism includes a platform 44, a vertically oriented output pipe 46 connected to a steam source at its upper end, an output pipe lifting mechanism 47 for driving the output pipe to rise and fall, a cleaning cup 51, and an output pipe rotation mechanism 72. The lower end of the output pipe has a pointed tip 48 for piercing the lid of a food container. This allows the lid to be pierced via the steam input pipe during steam heating, eliminating the need for a separate lid-piercing mechanism. The lower end face of the output pipe has a downward-facing end portion outlet 49, and the lower circumferential surface of the output pipe has a circumferential outlet 50. The opening direction of the circumferential outlet is horizontal. In use, the output pipe is driven to descend by the output pipe lifting mechanism to pierce the lid of the food container, and then steam is input to heat the food. After heating, the output pipe moves into the cleaning cup for cleaning.
[0017] The steam heating structure also includes a frame 58. The output pipe lifting structure includes a vertical guide rod 59, a lifting seat 60 sleeved on the vertical guide rod, a vertical screw 61 threadedly connected to the lifting seat, and a lifting motor 62 driving the vertical screw to rotate. The vertical screw is rotatably connected to the frame, and the lifting motor and the vertical guide rod are fixed to the frame. The output pipe rotating structure includes a rotary motor 63 mounted on the lifting seat and a swing arm 64 connected to the output shaft of the rotary motor. The output pipe is connected to the swing arm. A temperature sensing rod 75 is also connected to the lifting seat.
[0018] The cleaning cup has an annular cavity 65 extending circumferentially within its circumferential wall. The annular cavity has an inlet 74 and several outlets 66 penetrating the inner circumferential surface of the cleaning cup. The outlets are distributed circumferentially. The cleaning cup has a drain pipe 67. The inlet is connected to a fourth interface via a second control valve to allow the input of steam and water for cleaning the output pipe. The cleaning cup includes an upper section 68 and a lower section 69. The upper end of the lower section has a lower section outward flange 70. The upper surface of the lower section outward flange has a lower annular groove with several lower grooves penetrating the inner circumferential surface of the lower section. The lower end of the upper section has an upper section outward flange 71. The lower surface of the upper section outward flange has an upper annular groove with several upper grooves penetrating the inner circumferential surface of the upper section. The lower section outward flange is sealed and welded to the upper section outward flange. The upper and lower annular grooves enclose the annular cavity, and the upper and lower grooves enclose the outlets. The drain pipe is located on the bottom wall of the lower section.
[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A steam heating structure with a cleaning mechanism, comprising a vertically positioned output pipe connected at its upper end to a steam source and an output pipe lifting structure for driving the output pipe to rise and fall, characterized in that, The cleaning device includes a washing cup and an output pipe rotating structure. The output pipe rotating structure is used to rotate the output pipe above the washing cup. The washing cup has an annular cavity extending circumferentially within its peripheral wall. The annular cavity has an inlet and several outlets penetrating the inner circumferential surface of the washing cup. The outlets are distributed circumferentially within the washing cup. The washing cup is equipped with a drain pipe.
2. The steam heating structure with a cleaning structure according to claim 1, characterized in that, The cleaning cup includes an upper section and a lower section. The upper end of the lower section is provided with a lower section outward flange. The upper surface of the lower section outward flange is provided with a lower annular groove. The lower annular groove is provided with several lower grooves penetrating the inner circumference of the lower section. The lower end of the upper section is provided with an upper section outward flange. The lower surface of the upper section outward flange is provided with an upper annular groove. The upper annular groove is provided with several upper grooves penetrating the inner circumference of the upper section. The lower section outward flange is sealed and welded together with the upper section outward flange. The upper annular groove and the lower annular groove surround the annular cavity. The upper groove and the lower groove surround the outlet. The drain pipe is provided on the bottom wall of the lower section.
3. A steam heating structure with a cleaning structure according to claim 1 or 2, characterized in that, The lower end of the output tube is equipped with a pointed tip for piercing the lid of the lunchbox.
4. A steam heating structure with a cleaning structure according to claim 3, characterized in that, The lower end face of the output tube is provided with an end face outlet facing downwards, and the lower circumferential surface of the output tube is provided with a circumferential outlet.
5. A steam heating structure with a cleaning structure according to claim 4, characterized in that, The opening direction of the peripheral surface outlet is horizontal.
6. A steam heating structure with a cleaning structure according to claim 1 or 2, characterized in that, It also includes a frame. The output pipe lifting structure includes a vertical guide rod, a lifting seat sleeved on the vertical guide rod, a vertical screw threaded to the lifting seat, and a lifting motor that drives the vertical screw to rotate. The vertical screw is rotatably connected to the frame, and the lifting motor and the vertical guide rod are fixed to the frame. The output pipe rotating structure includes a rotary motor mounted on the lifting seat and a swing arm connected to the output shaft of the rotary motor. The output pipe is connected to the swing arm.
Citation Information
Patent Citations
Steaming type food machine
CN112716256A