Sweet potato oven with automatic water steam discharging function

By combining the central heating tube and side heating tubes with the central shaft tube rotation system, as well as the design of the rotating rollers and one-way valves, the problems of uneven heating and the inability to automatically expel moisture in the sweet potato oven have been solved, achieving uniform and dry roasting of sweet potatoes and improving ease of use and efficiency.

CN224155534UActive Publication Date: 2026-04-24HENAN HUAQIU AGRI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HUAQIU AGRI TECH CO LTD
Filing Date
2025-04-24
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing sweet potato ovens have problems such as uneven heating, the need for manual turning, and the inability to automatically release moisture, resulting in uneven baking and the sweet potato not being dry.

Method used

The system employs a combination of a central heating tube and side heating tubes with a rotating central tube to achieve automatic turning and uniform heating of sweet potatoes. Automatic drainage of steam is achieved through rotating rollers and one-way valves to reduce heat leakage.

Benefits of technology

It achieves uniform and dry roasting of sweet potatoes, improves ease of use and work efficiency, and reduces the hassle of manual operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224155534U_ABST
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Abstract

The utility model discloses a sweet potato oven with an automatic water steam discharging function. The sweet potato oven comprises an oven body and a middle shaft pipe. The sweet potato baking oven has the advantages that the center shaft pipe, the center heating pipe and the side heating pipes are adopted, when sweet potatoes are baked, the sweet potatoes can be placed in the containing frame, the center heating pipe and the side heating pipes are started, the center heating pipe heats the middle of the baking oven body, the side heating pipes conduct edge heating, the heating uniformity is improved, the heat radiation range is widened, and the baking efficiency is improved. Meanwhile, a first driving motor drives a driving gear to rotate, drives a driven gear to rotate, drives a middle shaft pipe to rotate, drives a connecting frame to rotate and drives a containing basket to rotate, then sweet potatoes are driven to rotate and turn over, local gelatinization is avoided, the baking uniformity is improved, meanwhile, a top opening of a containing frame is of an open structure, taking and placing are convenient, and the practicability is high. And along with rotation of the containing frame, the sweet potatoes can be driven to move to the position close to the box door, taking and placing are further facilitated, and use convenience is improved.
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Description

Technical Field

[0001] This utility model relates to the field of oven technology, specifically to a sweet potato oven with an automatic steam drainage function. Background Technology

[0002] Currently, sweet potato ovens on the market are generally divided into traditional sheet metal ovens and purely modern electric ovens. Purely modern electric ovens are expensive to manufacture, and the heat source is expensive raw materials such as electricity, gas, and oil. They are also heavy and not easy to move. On the other hand, traditional sheet metal ovens use charcoal fire to bake, and the heat source is concentrated, which makes it impossible for sweet potatoes to be heated evenly. The sweet potatoes need to be turned manually to ensure that they are heated evenly, which is not only troublesome but also poses a risk of burns.

[0003] After searching, it was found that application number CN202022522668.6, entitled "An Automatically Rotating Sweet Potato Oven," proposes a sweet potato oven that can automatically rotate sweet potatoes to prevent them from burning. However, this application requires the sweet potatoes to be placed inside the rod components. To ensure that the sweet potatoes do not fall, the gap between the rod components needs to be smaller than the size of the sweet potatoes, which imposes requirements on the size of the sweet potatoes and makes them inconvenient to handle. At the same time, the heat source distribution in this application is not uniform, and the small heat source distribution leads to uneven baking. The high water content of the sweet potatoes means that the moisture generated during baking cannot be automatically discharged, affecting the dryness of the baked sweet potatoes. Further improvements can be made.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sweet potato oven with an automatic steam drainage function, which has the advantages of being easy to use and highly efficient, thereby solving the problems mentioned in the background technology.

[0006] To achieve the aforementioned advantages of ease of use and high work efficiency, the specific technical solution adopted by this utility model is as follows:

[0007] A sweet potato oven with automatic steam drainage function includes an oven body and a central shaft tube. The central shaft tube is rotatably connected through the oven body, and a connecting rod is fixedly connected to the outer wall of the central shaft tube. A serving frame is provided between the connecting rods. The top two ends of the serving frame are fixedly connected to the connecting brackets, and the connecting brackets are rotatably connected to the other end of the connecting rods via connecting shafts. A central heating tube is fixedly installed at one end of the oven body via a side frame, and the central heating tube extends into the interior of the central shaft tube. A first drive motor is fixedly installed at the other end of the oven body via a motor frame, and a drive gear is installed at the output end of the first drive motor. A driven gear is fixedly installed at one end of the central shaft tube, and the driven gear meshes with the drive gear. Side heating tubes are fixedly installed at the bottom, top, and front of the back panel of the oven body.

[0008] Furthermore, a bottom compartment is fixedly installed on the bottom surface of the oven body, and a rotating roller is rotatably connected inside the bottom compartment. A drainage groove is opened on the surface of the rotating roller. A bottom groove is opened through the bottom surface of the oven body on the top surface of the bottom compartment, and a drainage outlet is opened on the bottom surface of the bottom compartment. A second drive motor is fixedly installed on the back side of the bottom compartment. The output end of the second drive motor is fixedly connected to one end of the roller shaft of the rotating roller. A one-way valve is connected through the top surface of the oven body.

[0009] Furthermore, the drainage channels are distributed in multiple sets at equal angles along the central axis of the rotating roller, and the rotating roller rolls against the inner wall of the bottom hopper.

[0010] Furthermore, the central shaft tube is rotatably connected to the oven body via a sealed bearing, and the central shaft tube is made of metal.

[0011] Furthermore, multiple sets of connecting rods are distributed at equal angles along the central axis of the central tube, and the connecting rods are rotatably connected to the connecting shaft via bearings.

[0012] Furthermore, the oven body has a door hinged to its front facade, and the door is transparent.

[0013] Furthermore, multiple sets of the holding frames are arranged, and the surface of the holding frames has a hollow structure.

[0014] Furthermore, the oven body is equipped with support legs on its bottom surface.

[0015] Compared with the prior art, this utility model provides a sweet potato oven with automatic steam drainage function, which has the following beneficial effects:

[0016] (1) This utility model adopts a central tube, a central heating tube and a side heating tube. When roasting sweet potatoes, the sweet potatoes can be placed in the serving basket and the central heating tube and the side heating tube can be activated. The central heating tube heats the middle part of the oven body and the side heating tube heats the edge, which improves the uniformity of heating, increases the heat radiation range and improves the roasting efficiency. At the same time, the first drive motor drives the drive gear to rotate, drives the driven gear to rotate, drives the central tube to rotate, drives the connecting frame to rotate, drives the serving basket to rotate, and thus drives the sweet potatoes to rotate and turn over, avoiding localized gelatinization and improving the uniformity of roasting. At the same time, the top opening of the serving basket is an open structure, which is convenient for picking up and placing. As the serving basket rotates, it can move the sweet potatoes to the position near the oven door, which is even more convenient for picking up and placing, and improves the convenience of use.

[0017] (2) This utility model adopts a one-way valve and a rotating roller. The water generated during baking falls to the bottom of the oven body and is collected in the drain trough through the bottom compartment. The second drive motor drives the rotation to drain the water in the drain trough, thus completing the automatic drainage. During the rotation, the rotating roller rolls against the inner wall of the bottom compartment, which plays a sealing role and reduces heat leakage. At the same time, the one-way valve facilitates venting and prevents outside air from entering the oven body, further reducing heat leakage. It eliminates the trouble of manual drainage and venting, and further improves the convenience of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the internal structure of a sweet potato oven with automatic steam drainage function proposed in this utility model;

[0020] Figure 2 This is a front view of a sweet potato oven with automatic steam drainage function proposed in this utility model;

[0021] Figure 3 This is a rear view of a sweet potato oven with an automatic steam drainage function proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the rear elevation of a sweet potato oven with automatic steam drainage function proposed in this utility model.

[0023] In the picture:

[0024] 1. Oven body; 2. Central shaft tube; 3. Central heating element; 4. Side rack; 5. Connecting rod; 6. Connecting frame; 7. Container frame; 8. Side heating element; 9. One-way valve; 10. Oven door; 11. Motor frame; 12. First drive motor; 13. Drive gear; 14. Driven gear; 15. Coupling; 16. Bottom compartment; 17. Rotating roller; 18. Drainage trough; 19. Bottom groove; 20. Drain outlet; 21. Second drive motor. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a sweet potato oven with an automatic steam drainage function is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a sweet potato oven with automatic steam drainage function according to an embodiment of the present invention includes an oven body 1 and a central shaft tube 2. The central shaft tube 2 is rotatably connected through the oven body 1, and a connecting rod 5 is fixedly connected to the outer wall of the central shaft tube 2. The connecting rods 5 are symmetrically distributed in pairs, and a holding frame 7 is provided between the connecting rods 5. The top surfaces of the holding frame 7 are fixedly connected to the two ends of the connecting frame 7, and the connecting frame 6 is rotatably connected to the other end of the connecting rod 5 through a connecting shaft 15. A central heating tube 3 is fixedly installed at one end of the oven body 1 through a side frame 4, and the central heating tube 3 extends into the interior of the central shaft tube 2. A first drive motor 12 is fixedly installed at the other end of the oven body 1 through a motor frame 11, and a drive gear 13 is installed at the output end of the first drive motor 12. A driven gear 14 is fixedly installed at one end of the central shaft tube 2, and the driven gear 14 meshes with the drive gear 13. The bottom and top of the oven body 1 are connected. Both the front and back panels are fixedly equipped with side heating tubes 8, and multiple sets of side heating tubes 8 are arranged. When roasting sweet potatoes, the sweet potatoes can be placed in the serving basket 7, and the central heating tube 3 and the side heating tubes 8 are activated. The central heating tube 3 heats the middle part of the oven body 1, and the side heating tubes 8 heat the edges, which improves the uniformity of heating, increases the heat radiation range, and improves the roasting efficiency. At the same time, the first drive motor 12 drives the drive gear 13 to rotate, drives the driven gear 14 to rotate, drives the central shaft tube 2 to rotate, drives the connecting frame 6 to rotate, drives the serving basket to rotate, and thus drives the sweet potatoes to rotate and turn over, avoiding localized gelatinization and improving the uniformity of roasting. Meanwhile, the top opening of the serving basket 7 is an open structure, which is convenient for picking up and placing. As the serving basket 7 rotates, it can move the sweet potatoes to a position close to the oven door 10, which is even more convenient for picking up and placing, improving the convenience of use.

[0028] In one embodiment, a bottom chamber 16 is fixedly installed on the bottom surface of the oven body 1, and a rotating roller 17 is rotatably connected inside the bottom chamber 16. A drainage groove 18 is formed on the surface of the rotating roller 17. A bottom groove 19 is formed through the bottom surface of the oven body 1 on the top surface of the bottom chamber 16, and a drainage outlet 20 is formed on the bottom surface of the bottom chamber 16. A second drive motor 21 is fixedly installed on the back side of the bottom chamber 16. The output end of the second drive motor 21 is fixedly connected to one end of the roller shaft of the rotating roller 17. A one-way valve 9 is connected through the top surface of the oven body 1. Water generated during baking falls to the bottom of the oven body 1, collects in the drainage groove 18 through the bottom chamber 16, and is driven to rotate by the second drive motor 21 to drain the water in the drainage groove 18, thus completing automatic drainage. During the rotation, the rotating roller 17 rolls against the inner wall of the bottom chamber 16, which plays a sealing role and reduces heat leakage. At the same time, the one-way valve 9 facilitates venting and prevents outside air from entering the oven body 1, further reducing heat leakage and eliminating the trouble of manual drainage and venting, thus further improving the convenience of use.

[0029] In one embodiment, multiple sets of drainage channels 18 are distributed at equal angles along the central axis of the rotating roller 17, and the rotating roller 17 rolls against the inner wall of the bottom chamber 16 to prevent airflow from causing a large amount of heat leakage.

[0030] In one embodiment, the central shaft tube 2 is rotatably connected to the oven body 1 via a sealed bearing, and the central shaft tube 2 is made of metal to facilitate heat conduction.

[0031] In one embodiment, multiple sets of connecting rods 5 are distributed at equal angles along the central axis of the central tube 2, and the connecting rods 5 are rotatably connected to the connecting shaft 15 through bearings. Multiple sets of holding frames 7 are arranged, and the surface of the holding frames 7 has a hollow structure, which increases the amount of sweet potatoes roasted and improves work efficiency.

[0032] In one embodiment, the oven body 1 is hinged to a door 10 on its front facade, and the door 10 has a transparent structure, which facilitates closing the oven body 1 and observing the baking status inside.

[0033] In one embodiment, the oven body 1 is equipped with support legs on its bottom surface for easy placement.

[0034] Working principle:

[0035] When roasting sweet potatoes, place them in the serving basket 7, and activate the central heating element 3 and the side heating elements 8. The central heating element 3 heats the middle part of the oven body 1, while the side heating elements 8 heat the edges, improving heating uniformity, increasing the heat radiation range, and improving roasting efficiency. Simultaneously, the first drive motor 12 drives the drive gear 13 to rotate, which in turn drives the driven gear 14, the central shaft tube 2, the connecting frame 6, and the serving basket, thus rotating and turning the sweet potatoes to prevent localized burning and improve roasting uniformity. Furthermore, the top of the serving basket 7 is open for easy handling and placement. As the serving basket 7 rotates... The machine can move the sweet potatoes closer to the oven door 10, making them easier to pick up and place, thus improving usability. Meanwhile, the water produced during baking falls to the bottom of the oven body 1, collects in the drain trough 18 through the bottom compartment 16, and is driven by the second drive motor 21 to rotate, draining the water from the drain trough 18, thus completing automatic drainage. During the rotation, the rotating roller 17 rolls against the inner wall of the bottom compartment 16, which acts as a seal, reducing heat leakage. At the same time, the one-way valve 9 facilitates venting and prevents outside air from entering the oven body 1, further reducing heat leakage and eliminating the hassle of manual drainage and venting, thus further improving usability.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sweet potato oven with automatic steam drainage function, characterized in that, The oven includes an oven body (1) and a central tube (2). The central tube (2) is rotatably connected through the oven body (1), and a connecting rod (5) is fixedly connected to the outer wall of the central tube (2). A serving frame (7) is provided between the connecting rods (5). A connecting frame (6) is fixedly connected to both ends of the top surface of the serving frame (7), and the connecting frame (6) is rotatably connected to the other end of the connecting rod (5) through a connecting shaft (15). A central heating tube (3) is fixedly installed at one end of the oven body (1) through a side frame (4). The central heating tube (3) extends into the interior of the central tube (2). The other end of the oven body (1) is fixedly mounted with a first drive motor (12) via a motor frame (11). The output end of the first drive motor (12) is equipped with a drive gear (13). One end of the central tube (2) is fixedly mounted with a driven gear (14), and the driven gear (14) meshes with the drive gear (13). Side heating tubes (8) are fixedly mounted at the bottom, top, and front of the back panel of the oven body (1).

2. A sweet potato oven with automatic steam drainage function according to claim 1, characterized in that, The oven body (1) has a bottom compartment (16) fixedly installed on its bottom surface, and a rotating roller (17) is rotatably connected inside the bottom compartment (16). A drainage groove (18) is opened on the surface of the rotating roller (17). A bottom groove (19) is opened through the bottom surface of the oven body (1) on the top surface of the bottom compartment (16). A drain outlet (20) is opened on the bottom surface of the bottom compartment (16). A second drive motor (21) is fixedly installed on the back side of the bottom compartment (16). The output end of the second drive motor (21) is fixedly connected to one end of the roller shaft of the rotating roller (17). A one-way valve (9) is connected through the top surface of the oven body (1).

3. A sweet potato oven with automatic steam drainage function according to claim 2, characterized in that, The drainage troughs (18) are distributed in multiple sets at equal angles along the central axis of the rotating roller (17), and the rotating roller (17) rolls against the inner wall of the bottom hopper (16).

4. A sweet potato oven with automatic steam drainage function according to claim 1, characterized in that, The central tube (2) is rotatably connected to the oven body (1) through a sealed bearing, and the central tube (2) is made of metal.

5. A sweet potato oven with automatic steam drainage function according to claim 1, characterized in that, The connecting rods (5) are distributed in multiple sets at equal angles along the central axis of the central tube (2), and the connecting rods (5) are rotatably connected to the connecting shaft (15) through bearings.

6. A sweet potato oven with automatic steam drainage function according to claim 1, characterized in that, The oven body (1) has a door (10) hinged to its front facade, and the door (10) is transparent.

7. A sweet potato oven with automatic steam drainage function according to claim 1, characterized in that, The holding frame (7) is arranged in multiple sets, and the surface of the holding frame (7) is a hollow structure.

8. A sweet potato oven with automatic steam drainage function according to claim 1, characterized in that, The oven body (1) is equipped with support legs on its bottom surface.

Citation Information

Patent Citations

  • Sweet potato oven capable of automatically overturning

    CN213848458U