A porcelain denture furnace with a cooling structure

By designing a porcelain furnace with a cooling structure, and utilizing the combination of an electric telescopic rod and a cooling fan, the problem of inconvenient cooling of the porcelain furnace for dentures was solved, achieving rapid cooling and tray stability, and facilitating the removal of dentures.

CN224285411UActive Publication Date: 2026-05-26NANJING JINGUAN BRIDGE DENTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING JINGUAN BRIDGE DENTURE CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing porcelain furnaces for dentures result in dentures remaining at a high temperature after cooling, making them inconvenient to handle.

Method used

A dental porcelain furnace with a cooling structure was designed. The electric telescopic rod drives the displacement block to move the connecting rod, which in turn drives the rack and pinion gear to rotate the rotating shaft. The rotating shaft is connected to a cooling fan for angle adjustment, achieving rapid cooling. The stability of the tray is ensured by the cooperation of the limit block and the limiting spring.

Benefits of technology

The porcelain furnace for dentures achieves rapid cooling after processing, making it easy to remove, and the tray has good stability when placed, improving ease of use.

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Abstract

This utility model discloses a porcelain denture furnace with a cooling structure, relating to the field of porcelain denture furnace technology. It includes a frame, a furnace body, a placement seat, and a tray. The furnace body is located at one end of the frame, and the placement seat is located at the end of the frame away from the furnace body. This porcelain denture furnace with a cooling structure, by activating an electric telescopic rod, allows a displacement block to move a rack via a connecting rod. This rack, in turn, rotates a rotating shaft via a rotating gear and a connecting shaft. The connecting shaft and mounting ring then rotate a connected cooling fan, thereby rapidly cooling the processed dentures. By engaging the tray with the placement seat, the mating holes can press against the limiting block during insertion, allowing insertion into the pre-drilled slots inside the tray. This provides good stability when the porcelain denture furnace places the tray.
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Description

Technical Field

[0001] This utility model relates to the field of dental porcelain furnace technology, specifically a dental porcelain furnace with a cooling structure. Background Technology

[0002] The primary function of a porcelain-fused-to-metal (PFM) furnace is to bake porcelain materials into shaped dentures. Through high-temperature heating and other techniques, it shapes the porcelain material into dentures that conform to the individual's oral cavity morphology, thus better fitting the patient's mouth, improving aesthetics and comfort. The PFM furnace plays a crucial role in denture fabrication and is an indispensable piece of equipment in the field of modern dental restoration.

[0003] However, most porcelain fused to metal furnaces for dentures require high temperatures to shape the dentures during use. After the process is complete, the furnaces can automatically or manually cool down before removing the dentures. However, the dentures are still quite hot after cooling, making them difficult to handle and requiring manual cooling again. This makes it even more inconvenient to remove the dentures. Utility Model Content

[0004] The purpose of this invention is to provide a dental porcelain furnace with a cooling structure to solve the problem mentioned in the background art that dental porcelain furnaces are not easy to cool down during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dental porcelain furnace with a cooling structure, comprising a frame, a furnace body, a placement seat, and a tray. The furnace body is located at one end of the frame, the placement seat is located at the end of the frame away from the furnace body, and the tray is located at one end of the placement seat. Reinforcing plates are provided on both sides of the frame, and an electric telescopic rod is installed at one end of each reinforcing plate. A displacement block is connected to the output end of the electric telescopic rod, and a connecting rod is connected to one end of the displacement block.

[0006] Preferably, a rack is connected to the end of the connecting rod away from the displacement block, and a rotating gear is connected to the end of the rack away from the connecting rod. One end of the rotating gear is provided with a rotating shaft connected by a bearing.

[0007] Preferably, a rotating shaft is connected to one side of the rotating shaft, and a connecting shaft is connected to the end of the rotating shaft away from the rotating shaft. The connecting shaft has evenly distributed reserved holes on one side.

[0008] Preferably, a mounting ring is connected to the side of the connecting shaft away from the rotating shaft, and a cooling fan is installed inside the mounting ring.

[0009] Preferably, the tray has symmetrically distributed docking holes inside, and docking blocks that connect to the placement seat are inserted into the docking holes. Limiting blocks are provided inside the docking blocks.

[0010] Preferably, a symmetrically distributed limiting spring is connected between one side of the limiting block and the docking block, an adjusting rod is provided inside the placement seat, and a symmetrically distributed support plate is provided inside the placement seat near the adjusting rod.

[0011] Preferably, a return spring is connected between the adjusting rod and the support plate provided inside the placement seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This dental porcelain furnace with a cooling structure, by activating the electric telescopic rod, allows the displacement block to move the rack via the connecting rod, so that the rack can rotate the rotating shaft via the rotating gear and rotating shaft, and the connected connecting shaft and mounting ring can rotate the connected cooling fan, thereby quickly cooling the processed dentures. By engaging the tray and the placement seat, the mating hole can press against the limiting block during insertion, so that the pre-reserved slot inside the tray can be inserted, giving the dental porcelain furnace good stability when placing the tray.

[0013] 1. This porcelain denture furnace with a cooling structure addresses the common inconvenience of cooling finished dentures during use. This is because the cooling fan can be activated to dissipate heat from the removed dentures. Furthermore, by tightening the locking bolts connecting the rotating shaft and the connecting shaft, the angle of the cooling fan can be adjusted, allowing for rapid cooling of the dentures and facilitating their removal.

[0014] 2. This porcelain denture furnace with a cooling structure addresses the common issue of wobbling during lifting and lowering, which hinders processing. The solution involves connecting the tray's end hole to the placement block, and simultaneously pressing the limiting spring with a stop block. After connection, it engages with a pre-drilled slot inside the tray. Conversely, pushing the adjusting rod presses the reset spring, and the moving rod moves the stop block, further pressing the limiting spring and separating it from the pre-drilled slot. This allows for quick removal of the tray and improves stability when placing it within the porcelain denture furnace. Attached Figure Description

[0015] Figure 1 This is a side view of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the front sectional view of the reinforcing plate of this utility model;

[0018] Figure 4 This is a side sectional view of the mounting ring of this utility model;

[0019] Figure 5 This is a schematic diagram of the front sectional structure of the tray of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the rack of this utility model.

[0021] In the diagram: 1. Frame; 2. Furnace body; 3. Placement seat; 4. Tray; 5. Reinforcing plate; 6. Electric telescopic rod; 7. Displacement block; 8. Connecting rod; 9. Rack; 10. Rotating gear; 11. Rotating shaft; 12. Rotating shaft; 13. Connecting shaft; 14. Reserved hole; 15. Mounting ring; 16. Cooling fan; 17. Docking hole; 18. Docking block; 19. Limiting block; 20. Restricting spring; 21. Adjusting rod; 22. Return spring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 6This utility model provides a technical solution: a dental porcelain furnace with a cooling structure, comprising a frame 1, a furnace body 2, a placement seat 3, and a tray 4. The furnace body 2 is located at one end of the frame 1, and the placement seat 3 is located at the end of the frame 1 furthest from the furnace body 2. The tray 4 is located at one end of the placement seat 3. Reinforcing plates 5 are provided on both sides of the frame 1. An electric telescopic rod 6 is installed at one end of each reinforcing plate 5. A displacement block 7 is connected to the output end of the electric telescopic rod 6, and a connecting rod 8 is connected to one end of the displacement block 7. The connecting rod 8 is located at... A rack 9 is connected to one end of the displacement block 7. A rotating gear 10 is connected to the end of the rack 9 away from the connecting rod 8. A rotating shaft 11 connected to the end of the rotating gear 10 via a bearing is provided. A rotating shaft 12 is connected to one side of the rotating shaft 11. A connecting shaft 13 is connected to the end of the rotating shaft 12 away from the rotating shaft 11. A pre-drilled hole 14 is evenly distributed on one side of the connecting shaft 13. A mounting ring 15 is connected to the side of the connecting shaft 13 away from the rotating shaft 12. A cooling fan 16 is installed inside the mounting ring 15.

[0024] In practice,

[0025] See Figure 1 , Figure 2 , Figure 3 and Figure 6 It is known that when a porcelain-fused-to-metal furnace is in use, it is usually difficult to cool down the finished denture, making the furnace inconvenient to use. This can be addressed by starting the cooling fan 16, which can then dissipate heat from the removed denture. Simultaneously, starting the electric telescopic rod 6 moves the displacement block 7 connected to the output end. This movement of the displacement block 7 moves the connecting rod 8, which in turn moves the rack 9. This, in turn, rotates the rotating gear 10 meshed with the rack 9. When the wheel 10 rotates, it can rotate the connected rotating shaft 11, which in turn can rotate the connected rotating shaft 12. In turn, the rotating shaft 12 can rotate the connected connecting shaft 13 and the mounting ring 15, which in turn can rotate the connected cooling fan 16, thereby improving the cooling efficiency. At the same time, by tightening the locking bolt connecting the rotating shaft 12 and the connecting shaft 13, the connecting shaft 13 can be rotated and adjusted, so that the angle of the cooling fan 16 can be adjusted. This allows the dental porcelain furnace to cool the denture quickly during use, making it easier to remove the denture.

[0026] The tray 4 has symmetrically distributed docking holes 17 inside. A docking block 18 connected to the placement seat 3 is inserted into the docking hole 17. A limit block 19 is provided inside the docking block 18. A symmetrically distributed limiting spring 20 is connected between one side of the limit block 19 and the docking block 18. An adjusting rod 21 is provided inside the placement seat 3. A symmetrically distributed support plate is provided inside the placement seat 3 near the end of the adjusting rod 21. A return spring 22 is connected between the adjusting rod 21 and the support plate inside the placement seat 3.

[0027] In practice,

[0028] See Figure 1 , Figure 2 , Figure 4 and Figure 5 It is known that when the porcelain furnace for dentures is raised and lowered, it is prone to shaking, which makes the porcelain furnace for dentures less convenient to process. This can be remedied by inserting the docking hole 17 at one end of the tray 4 into the docking block 18 at one end of the placement seat 3. At the same time, the insertion can squeeze the limiting block 19, so that the limiting block 19 can move and squeeze the limiting spring 20 on one side. After the insertion is completed, it can be inserted into the reserved slot opened inside the tray 4. Conversely, pushing the adjusting rod 21 can squeeze the connected return spring 22. As the adjusting rod 21 moves, it can move the limiting block 19, so that the limiting block 19 can squeeze the connected limiting spring 20 when it moves, so that it can separate from the reserved slot opened inside the tray 4. This allows the tray 4 to be quickly unrestrained, making the tray 4 easy to remove. The porcelain furnace for dentures can also have good stability when placing the tray 4.

[0029] In summary, the main function of a porcelain-fused-to-metal furnace is to bake porcelain materials into shaped dentures. Through high-temperature heating and other technologies, it can create dentures that conform to the individual's oral cavity shape, thus better fitting the patient's oral cavity and improving aesthetics and comfort. By activating the cooling fan 16, the furnace can dissipate heat from the removed dentures. Simultaneously, by tightening the locking bolt connecting the rotating shaft 12 and the connecting shaft 13, the connecting shaft 13 can be rotated and adjusted, allowing the angle of the cooling fan 16 to be adjusted. This enables the porcelain-fused-to-metal furnace to quickly cool the dentures during use, facilitating their removal. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dental porcelain furnace with a cooling structure, comprising a frame (1), a furnace body (2), a placement base (3), and a tray (4), characterized in that: A furnace body (2) is provided at one end of the frame (1), a placement seat (3) is provided at the end of the frame (1) away from the furnace body (2), a tray (4) is provided at one end of the placement seat (3), a reinforcing plate (5) is provided on both sides of the frame (1), an electric telescopic rod (6) is installed at one end of the reinforcing plate (5), a displacement block (7) is connected to the output end of the electric telescopic rod (6), and a connecting rod (8) is connected to one end of the displacement block (7). The end of the connecting rod (8) away from the displacement block (7) is connected to a rack (9), and the end of the rack (9) away from the connecting rod (8) is connected to a rotating gear (10). One end of the rotating gear (10) is provided with a rotating shaft (11) connected by a bearing. A rotating shaft (12) is connected to one side of the rotating shaft (11), and a connecting shaft (13) is connected to the end of the rotating shaft (12) away from the rotating shaft (11). A pre-drilled hole (14) is evenly distributed on one side of the connecting shaft (13). The connecting shaft (13) is connected to a mounting ring (15) on the side away from the rotating shaft (12), and a cooling fan (16) is installed inside the mounting ring (15).

2. The dental porcelain furnace with a cooling structure according to claim 1, characterized in that: The tray (4) has symmetrically distributed docking holes (17) inside. A docking block (18) connected to the placement seat (3) is inserted into the docking hole (17). A limit block (19) is provided inside the docking block (18).

3. The dental porcelain furnace with a cooling structure according to claim 2, characterized in that: A symmetrically distributed limiting spring (20) is connected between one side of the limiting block (19) and the docking block (18). An adjusting rod (21) is provided inside the placement seat (3). A symmetrically distributed support plate is provided inside the placement seat (3) near the adjusting rod (21).

4. A dental porcelain furnace with a cooling structure according to claim 3, characterized in that: A return spring (22) is connected between the adjusting rod (21) and the support plate inside the placement seat (3).