A heating plate for making pastries

By using a box-shaped heating plate design, combined with a wrapping heating mechanism and a sealing mechanism, the problems of low heating efficiency and cross-contamination of flavors in pastries are solved, achieving efficient and compartmentalized heating of pastries and ensuring their taste.

CN224583342UActive Publication Date: 2026-07-31JIANGXI YUANBAO FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI YUANBAO FOOD CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing pastry heating plates have low heating efficiency, and different flavors of pastries can easily mix when placed together, affecting the taste.

Method used

The heating plate adopts a box-shaped structure, equipped with multiple wrapping heating mechanisms and pastry placement boxes. It achieves separated and sealed placement and wrapping heating through sealing mechanisms and elastic ejection mechanisms. The electric heating circuit board is controlled by a PLC control panel for efficient heating.

Benefits of technology

It enables the separate and sealed storage of different types of pastries, preventing cross-contamination of flavors, improving heating efficiency, and ensuring that the taste of the pastries is not affected.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a heating plate for making pastries, comprising: a heating plate body, which is box-shaped with an open top, and an outer edge integrally formed on the top outer side of the heating plate body; a sealing mechanism, threadedly fixed to the top of the heating plate body, used to seal the top of the heating plate body; multiple wrapping heating mechanisms, fixed to the bottom inner wall of the heating plate body, used for wrapping heating; and an electric heating circuit board, embedded and fixed to the bottom of the heating plate body and electrically connected to the multiple wrapping heating mechanisms. This utility model, through a series of structural designs, can separate and seal different types of pastries, preventing cross-contamination of flavors, and can wrap-heat the separated pastries. Compared to heating only from the bottom, this heating method significantly improves heating efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of pastry making technology, and in particular to a heating plate for making pastries. Background Technology

[0002] Pastries are made primarily from one or more of the following ingredients: grains, beans, tubers, oils, sugar, and eggs. Before or after cooking, cream, egg whites, cocoa, jam, etc., are often added to the surface or interior. Pastry making involves multiple steps, and the long waiting time between steps often causes the pastries to cool down, affecting their texture. Therefore, continuous heating and heat preservation are necessary. Existing food heating plates are often single-plate designs. Since pastries are often coated with cream, jam, etc., they tend to stick to the heating plate. The heating plate requires frequent cleaning, and water may get into the internal circuitry. Furthermore, during the heating and heat preservation process, the pastries are placed directly on the surface of the heating plate, causing internal moisture to gradually evaporate, affecting the texture. Therefore, patent application number 202221514891.9 discloses a method for making... A heating plate for pastries includes a heating plate with limiting grooves on both outer surfaces. A first limiting pin is movably installed inside each limiting groove. A water storage groove is formed on the upper surface of the heating plate, and a heat-conducting block is movably installed inside the water storage groove. A pastry storage plate is fixedly installed on the upper surface of the heat-conducting block. A transparent sealing cover is provided on the upper surface of the pastry storage plate. A support base is fixedly installed on the lower surface of the heating plate near its four corners. The transparent sealing cover is placed on the upper surface of the pastry storage plate by using a heat-insulating handle. Activating the heating element heats the heat-conducting block, transferring heat to the interior of the pastry storage plate, thus heating the pastry. A sealing rubber gasket seals the connection between the transparent sealing cover and the pastry storage plate, effectively preventing excessive moisture loss during heating. The heating plate for making pastries disclosed in the above patent still has the following shortcomings in use: 1. It only conducts heat to the bottom of the pastry placement plate, so in the initial state it can only heat the bottom of the pastry, and then transfer the heat to the whole pastry through conduction, resulting in low heating efficiency; 2. It cannot heat pastries separately. The method of heating multiple flavors of pastries together can easily cause flavor mixing, affecting the taste; In view of the above, this application proposes a heating plate for making pastries. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heating plate for making pastries.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A heating plate for making pastries, comprising: The heating plate body has a box-shaped structure with an opening at the top, and an outer edge is integrally formed on the top of the outer side of the heating plate body; The sealing mechanism is threadedly fixed to the top of the heating plate body and is used to seal the top of the heating plate body. The wrapping heating mechanism consists of multiple components, which are fixed to the bottom inner wall of the heating plate body. The wrapping heating mechanism is used to wrap and heat the pastry. An electric heating circuit board is embedded and fixed at the bottom of the heating plate body and electrically connected to multiple wrapping heating mechanisms; The PLC control panel is fixedly connected to the left side of the heating plate body and electrically connected to the electric heating circuit board. The PLC control panel is used to control the electric heating circuit board. Its control principle is existing technology and will not be elaborated here. There are multiple pastry boxes, each movably fitted inside a corresponding wrapping and heating mechanism. The pastry boxes are used to hold pastries. Multiple elastic ejection mechanisms are installed in pairs on the corresponding packaging heating mechanisms and make active contact with the bottom of the corresponding pastry placement box. The elastic ejection mechanism is used to push the pastry placement box upward.

[0005] Preferably, the sealing mechanism includes a sealing cover threadedly fixed to the top of the heating plate body, a heat-insulating handle fixedly connected to the top of the sealing cover, and a sealing gasket connected to the bottom of the sealing cover. The bottom of the sealing gasket is in close contact with the top of the heating plate body and the top of the multiple wrapping heating mechanisms, thereby sealing the interior of the heating plate body.

[0006] Preferably, the sealing gasket is fixed to the bottom of the sealing cap by adhesive.

[0007] Preferably, the sealing gasket is detachably connected to the bottom of the sealing cap; The sealing cap has two first grooves on both sides of its bottom. Connecting blocks are glued and fixed to both sides of the top of the sealing gasket. Male hook and loop fasteners are glued and fixed to the top inner wall of the first groove. The connecting blocks are movably fitted into the corresponding first grooves. Female hook and loop fasteners are glued and fixed to the top of the connecting blocks. The male hook and loop fasteners are glued and fixed to the corresponding female hook and loop fasteners. The sealing gasket is fixed by the male hook and loop fasteners, which facilitates the replacement of the sealing gasket in the future.

[0008] Preferably, the wrapping heating mechanism includes an outer heat-conducting box fixedly connected to the inner wall of the bottom of the heating plate body, an inner heat-conducting box nested inside the outer heat-conducting box, and the top of the outer heat-conducting box and the top of the corresponding inner heat-conducting box fixedly connected to the same U-shaped frame. The pastry placing box is movably nested inside the corresponding inner heat-conducting box. An electric heating wire is wound around the outside of the inner heat-conducting box. Multiple electric heating wires are electrically connected to an electric heating circuit board. Multiple one-way exhaust valves are embedded and fixedly installed on the top of the sealing cover. The top of the one-way exhaust valve is the outlet. The one-way exhaust valve is aligned with the corresponding pastry placing box. Multiple exhaust holes are opened on the top of the sealing gasket. The exhaust holes are aligned and connected with the corresponding one-way exhaust valves. The one-way exhaust valves and exhaust holes are set for exhausting during heating.

[0009] Preferably, the elastic ejection mechanism includes a push block, which is movably embedded in the bottom inner wall of the corresponding inner heat-conducting box. The top of the push block is in movable contact with the bottom of the corresponding pastry placement box. A guide rod is fixedly connected to the bottom of the push block, which provides vertical guidance for the push block. The bottom of the heating plate body has an installation groove for mounting the electric heating circuit board. Multiple second grooves are provided on the top inner wall of the installation groove. A rectangular block is slidably fitted in the second groove. The bottom end of the guide rod extends into the corresponding second groove and is fixedly connected to the top of the rectangular block. Multiple tension springs in a stretched state are fixedly connected between the top of the rectangular block and the top inner wall of the corresponding second groove. The tension springs are designed to drive the rectangular block to move vertically when unsealed using their elasticity. The guide rod is located in front of the corresponding electric heating wire.

[0010] Preferably, the top two sides of the pastry box are fixedly connected with spherical handles, the top of the spherical handles are in contact with the bottom of the sealing gasket, and the pastry box can be pulled by the spherical handles.

[0011] Preferably, bolt grooves are provided on both sides of the top of the heating plate body, and T-shaped fixing bolts are threaded in the bolt grooves. Movable holes are provided on both sides of the top of the sealing cover and both sides of the top of the sealing gasket. The inner wall of the movable hole is in movable contact with the outer side of the corresponding T-shaped fixing bolt, and the inner wall of the top of the T-shaped fixing bolt is in movable contact with the top of the sealing cover. The sealing cover is fixed by the T-shaped fixing bolts and the bolt grooves.

[0012] Compared with existing technologies, the beneficial effects of this utility model are: With multiple heating mechanisms, multiple pastry boxes, and sealing mechanisms, different types of pastries can be separated and sealed to prevent cross-contamination of flavors. By using a wrapping heating mechanism, the pastries inside the pastry box can be heated in a wrapping manner, which significantly improves heating efficiency compared to heating only from the bottom. By using female and male hook and loop fasteners together, the sealing gasket can be removed and replaced, which improves the subsequent sealing stability. This invention, through a series of structural designs, can separate and seal different types of pastries to prevent cross-contamination of flavors, and can also heat the separated pastries in a wrapped manner. This heating method significantly improves heating efficiency compared to heating only from the bottom. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a heating plate for making pastries according to Embodiment 1 of this utility model; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a cross-sectional view of a heating plate for making pastries, as proposed in Embodiment 2 of this utility model.

[0014] In the diagram: 1. Heating plate body; 2. Sealing cap; 3. Electric heating circuit board; 4. Sealing gasket; 5. Outer heat conduction box; 6. Inner heat conduction box; 7. Pastry placement box; 8. Spherical handle; 9. PLC control panel; 10. Electric heating wire; 11. T-shaped fixing bolt; 12. Push block; 13. Guide rod; 14. Second groove; 15. Rectangular block; 16. Tension spring; 17. First groove; 18. Female Velcro; 19. Male Velcro. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0016] Reference Figure 1-3 A heating plate for making pastries, comprising: The heating plate body 1 has a box-shaped structure with an opening at the top, and an outer edge is integrally formed on the top of the outer side of the heating plate body 1; The sealing mechanism is threadedly fixed to the top of the heating plate body 1. The sealing mechanism includes a sealing cover 2 threadedly fixed to the top of the heating plate body 1. A heat insulation handle is fixedly connected to the top of the sealing cover 2. A sealing gasket 4 is glued to the bottom of the sealing cover 2. Bolt grooves are opened on both sides of the top of the heating plate body 1. T-shaped fixing bolts 11 are threaded in the bolt grooves. Movable holes are opened on both sides of the top of the sealing cover 2 and both sides of the top of the sealing gasket 4. The inner wall of the movable hole is in movable contact with the outer side of the corresponding T-shaped fixing bolt 11. The inner wall of the top of the T-shaped fixing bolt 11 is in movable contact with the top of the sealing cover 2. The sealing cover 2 is fixed by the T-shaped fixing bolt 11 and the bolt groove. The sealing gasket 4 seals the inside of the heating plate body 1. The heating mechanism consists of multiple parts and is fixed to the bottom inner wall of the heating plate body 1. The heating mechanism includes an outer heat-conducting box 5 fixedly connected to the bottom inner wall of the heating plate body 1. An inner heat-conducting box 6 is fitted inside the outer heat-conducting box 5. The top of the outer heat-conducting box 5 and the top of the corresponding inner heat-conducting box 6 are fixedly connected to the same U-shaped frame. A pastry placement box 7 is movably fitted inside the inner heat-conducting box 6. An electric heating wire 10 is wound around the outside of the inner heat-conducting box 6. Multiple one-way exhaust valves are embedded and fixed on the top of the sealing cover 2. The top of the one-way exhaust valve is the outlet. The one-way exhaust valve is aligned with the corresponding pastry placement box 7. Multiple exhaust holes are opened on the top of the sealing gasket 4. The exhaust holes are aligned and connected with the corresponding one-way exhaust valves. The one-way exhaust valves and exhaust holes are set for exhausting during heating. Both sides of the top of the pastry box 7 are fixedly connected to ball handles 8. The top of the ball handles 8 is in contact with the bottom of the sealing gasket 4, and the pastry box 7 can be pulled by the ball handles 8. An electric heating circuit board 3 is embedded and fixed at the bottom of the heating plate body 1 and electrically connected to multiple electric heating wires 10. A first through hole is provided on the bottom inner wall of the outer heat conduction box 5 for the corresponding electric heating wire 10 to pass through. The PLC control panel 9 is fixedly connected to the left side of the heating plate body 1 and electrically connected to the electric heating circuit board 3. The PLC control panel 9 is used to control the electric heating circuit board 3. Its control principle is existing technology and will not be described in detail here. Multiple elastic ejection mechanisms are installed in pairs on corresponding inner heat-conducting boxes 6 and in movable contact with the bottom of corresponding pastry placement boxes 7. Each elastic ejection mechanism includes a push block 12, which is movably embedded in the bottom inner wall of the corresponding inner heat-conducting box 6. A movable groove is formed on the bottom inner wall of the inner heat-conducting box 6, and the inner wall of the movable groove is in movable contact with the outer side of the corresponding push block 12. The top of the push block 12 is flush with the bottom inner wall of the corresponding inner heat-conducting box 6 and in movable contact with the bottom of the corresponding pastry placement box 7. A guide rod 13 is fixedly connected to the bottom of the push block 12, providing vertical guidance. The bottom of the heating plate body 1 has a section for mounting and fixing electric heating elements. The mounting slot of the thermal circuit board 3 has multiple second grooves 14 on the top inner wall. A rectangular block 15 is slidably fitted in the second groove 14. The bottom end of the guide rod 13 extends into the corresponding second groove 14 and is fixedly connected to the top of the rectangular block 15. Guide holes are provided on the bottom inner wall of the outer heat conduction box 5 and the bottom inner wall of the movable groove. The inner wall of the guide hole is in movable contact with the outer side of the corresponding guide rod 13. Multiple tension springs 16 in a stretched state are fixedly connected between the top of the rectangular block 15 and the top inner wall of the corresponding second groove 14. The tension springs 16 are set to drive the rectangular block 15 to move vertically when unsealed using their elasticity. The guide rod 13 is located in front of the corresponding electric heating wire 10. This embodiment can separate and seal different types of pastries to avoid cross-contamination of flavors, and can heat the separated pastries by wrapping them. This heating method is significantly more efficient than heating only from the bottom.

[0017] The usage method of this embodiment is as follows: When placing pastries for heating, first rotate the two T-shaped fixing bolts 11 in the opposite direction to move them out of the corresponding bolt slots, releasing the fixing of the sealing cover 2. Then, the sealing cover 2 can be removed by the heat insulation handle. The sealing cover 2 drives the sealing gasket 4 to separate from the multiple ball handles 8, releasing the obstruction of the ball handles 8. At this time, the elastic force of the tension spring 16 in the stretched state drives the push block 12 to move upward through the corresponding rectangular block 15 and guide rod 13, pushing the pastry placement box 7 upward. Under the pushing force, the pastry placement box 7 moves upward from the inner heat-conducting box 6 by a part. By moving a part out when the sealing is released, it is convenient to take out and put in the pastry placement box 7 later. Next, the pastries to be heated can be placed in the corresponding pastry placement box 7. Pastries of the same type are placed in the same pastry placement box 7, and pastries of different types are placed in different pastry placement boxes 7. After placement, the sealing cover 2 is moved downward, causing the sealing gasket 4 to move downward and press the multiple ball handles 8. Under the pressing force, the ball handles 8 cause the corresponding pastry placement box 7 to move downward until it comes into contact with the bottom inner wall of the inner heat-conducting box 6. While the pastry placement box 7 moves downward, it presses the corresponding push block 12. Under the pressing force, the push block 12 causes the corresponding guide rod 13 and rectangular block 15 to move downward in sequence and stretch the tension spring 16. When the sealing gasket 4 moves downward and contacts the top of the heating plate body 1 and the top of the U-shaped frame, the two T-shaped fixing bolts 11 can be rotated into the corresponding threaded grooves to fix the sealing cover 2. At this time, the sealing cover 2, sealing gasket 4, multiple pastry placement boxes 7 and multiple inner heat-conducting boxes 6 work together to separate and seal different types of pastries to avoid cross-contamination of flavors. After being sealed, the PLC control panel 9 can be used to control multiple heating wires 10 to be turned on in conjunction with the electric heating circuit board 3. Since the heating wires 10 are wrapped around the outside of the corresponding inner heat-conducting box 6, the entire inner heat-conducting box 6 can be heated. The pastry box 7 is located inside the corresponding inner heat-conducting box 6, so the heat on the inner heat-conducting box 6 can be transferred to the entire pastry box 7, thereby heating the pastries inside the pastry box 7 in a wrapped manner. Compared with the method of heating only at the bottom, this heating method has significantly improved heating efficiency. In addition, during the heating process, the steam inside the pastry box 7 can be discharged to the outside through the corresponding vent holes and one-way vent valves in sequence; After heating, when it is time to remove the pastry, the two T-shaped fixing bolts 11 can be rotated in the opposite direction to release the fixing of the sealing cover 2. Then the sealing cover 2 can be removed. After removal, the tension spring 16, which is in a stretched state, can drive the corresponding pastry box 7 to move upward a bit, so that people can directly take out the pastry box 7 through the ball handle 8. Specific Implementation

[0018] like Figure 4 As shown, this embodiment differs from Embodiment 1 in that the sealing gasket 4 is detachably connected to the bottom of the sealing cap 2. The bottom of the sealing cap 2 has two first grooves 17 on both sides. The top of the sealing gasket 4 has connecting blocks glued and fixed on both sides. The top inner wall of the first groove 17 has male hook and loop fasteners 19 glued and fixed. The connecting blocks are movably fitted in the corresponding first groove 17. The top of the connecting blocks has female hook and loop fasteners 18 glued and fixed. The male hook and loop fasteners 19 are glued and fixed to the corresponding female hook and loop fasteners 18. The sealing gasket 4 is fixed by the male hook and loop fasteners 19 and the female hook and loop fasteners 18, which makes it convenient to replace the sealing gasket 4 in the future. This embodiment allows for the removal and replacement of the sealing gasket 4 through the cooperation of the female hook and loop fastener 18 and the male hook and loop fastener 19. This removable and replaceable method can improve the subsequent sealing stability.

[0019] The method of use in this embodiment is as follows: The difference from Embodiment 1 is that, based on Embodiment 1, it also has the following functions: The sealing gasket 4 is fixed by the female hook and loop fastener 18 and the male hook and loop fastener 19. When the sealing gasket 4 ages after long-term use, it can be removed and replaced. The replaceable sealing gasket 4 can improve the subsequent sealing stability.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hot plate for making pastries, characterized in that, include: The heating plate body (1) is a box-shaped structure with an opening at the top. The outer edge is integrally provided on the top of the outer side of the heating plate body (1). The sealing mechanism is threadedly fixed to the top of the heating plate body (1); The heating mechanism is multiple and fixed to the bottom inner wall of the heating plate body (1); An electric heating circuit board (3) is embedded and fixed at the bottom of the heating plate body (1) and electrically connected to multiple wrapping heating mechanisms; The PLC control panel (9) is fixedly connected to the left side of the heating plate body (1) and electrically connected to the electric heating circuit board (3); There are multiple pastry boxes (7), each of which is movably fitted inside the corresponding wrapping and heating mechanism; Multiple elastic ejection mechanisms are installed in pairs on the corresponding wrapping heating mechanisms and make active contact with the bottom of the corresponding pastry box (7).

2. A heating plate for making pastries according to claim 1, characterized in that, The sealing mechanism includes a sealing cover (2) that is threadedly fixed to the top of the heating plate body (1). A heat insulation handle is fixedly connected to the top of the sealing cover (2), and a sealing gasket (4) is connected to the bottom of the sealing cover (2). The bottom of the sealing gasket (4) is in close contact with the top of the heating plate body (1) and the top of the multiple wrapping heating mechanisms.

3. A heating plate for making pastries according to claim 2, characterized in that, The sealing gasket (4) is fixed to the bottom of the sealing cap (2) by adhesive.

4. A heating plate for making pastries according to claim 2, characterized in that, The sealing gasket (4) is detachably connected to the bottom of the sealing cap (2); The sealing cap (2) has two first grooves (17) on both sides of its bottom. The sealing gasket (4) has connecting blocks glued to both sides of its top. The top inner wall of the first groove (17) has a male Velcro (19) glued to it. The connecting block is movably fitted into the corresponding first groove (17). The top of the connecting block has a female Velcro (18) glued to it. The male Velcro (19) is glued to the corresponding female Velcro (18).

5. A heating plate for making pastries according to claim 2, characterized in that, The heating mechanism includes an outer heat-conducting box (5) fixedly connected to the inner wall of the bottom of the heating plate body (1). An inner heat-conducting box (6) is fitted inside the outer heat-conducting box (5). The top of the outer heat-conducting box (5) and the top of the corresponding inner heat-conducting box (6) are fixedly connected to the same U-shaped frame. The pastry placement box (7) is movably fitted inside the corresponding inner heat-conducting box (6). An electric heating wire (10) is wound around the outside of the inner heat-conducting box (6). Multiple electric heating wires (10) are electrically connected to the electric heating circuit board (3). Multiple one-way exhaust valves are embedded and fixed on the top of the sealing cover (2). The top of the one-way exhaust valve is the outlet. The one-way exhaust valve is aligned with the corresponding pastry placement box (7). Multiple exhaust holes are opened on the top of the sealing gasket (4). The exhaust holes are aligned and connected with the corresponding one-way exhaust valves.

6. A heating plate for making pastries according to claim 5, characterized in that, The elastic ejection mechanism includes a push block (12), which is movably embedded in the bottom inner wall of the corresponding inner heat-conducting box (6). The top of the push block (12) is in movable contact with the bottom of the corresponding pastry box (7). A guide rod (13) is fixedly connected to the bottom of the push block (12). The bottom of the heating plate body (1) is provided with an installation groove for installing the electric heating circuit board (3). Multiple second grooves (14) are provided on the top inner wall of the installation groove. A rectangular block (15) is slidably fitted in the second groove (14). The bottom end of the guide rod (13) extends into the corresponding second groove (14) and is fixedly connected to the top of the rectangular block (15). Multiple tension springs (16) in a stretched state are fixedly connected between the top of the rectangular block (15) and the top inner wall of the corresponding second groove (14). The guide rod (13) is located in front of the corresponding electric heating wire (10).

7. A heating plate for making pastries according to claim 2, characterized in that, The top two sides of the pastry box (7) are fixedly connected with ball handles (8), and the top of the ball handles (8) is in contact with the bottom of the sealing gasket (4).

8. A heating plate for making pastries according to claim 2, characterized in that, Bolt grooves are provided on both sides of the top of the heating plate body (1), and T-shaped fixing bolts (11) are threaded in the bolt grooves. Movable holes are provided on both sides of the top of the sealing cover (2) and the top of the sealing gasket (4). The inner wall of the movable hole is in contact with the outer side of the corresponding T-shaped fixing bolt (11), and the inner wall of the top of the T-shaped fixing bolt (11) is in contact with the top of the sealing cover (2).