Safe pressurizing cooking device
By introducing sealing rings and steam venting valves into the steamer, pressure can be increased and decreased inside the pot, solving the problem of the steamer's single function and improving the speed of food cooking while ensuring safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TECHNICIAN COLLEGE (DONGGUAN SENIOR TECH SCHOOL)
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-05
AI Technical Summary
Existing steamers lack pressure-generating capabilities, resulting in limited functionality and an inability to accelerate food cooking by increasing the micro-pressure within the steamer.
By introducing sealing rings, vent valves, and sealing gaskets into the steamer structure, a seal is formed between the pot body and the lid. The vent valve is opened and closed in a timely manner according to the pressure changes inside the pot, thereby achieving pressurization and depressurization inside the pot and ensuring safety.
During the cooking process, it can increase micro-pressure, improve the cooking speed of food, and avoid safety hazards caused by excessive pressure inside the pot, thus expanding the function of the steamer.
Smart Images

Figure CN224193276U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of kitchenware technology, specifically relating to a safe pressure cooking device. Background Technology
[0002] Cooking appliances are a general term for equipment and utensils used for food processing and cooking, such as ovens, microwave ovens, rice cookers, pressure cookers, woks, and steamers. Figure 1 As shown, the existing steamer consists of a pot body, two U-shaped handles symmetrically arranged on the outer top wall of the pot body, a lid, and a lifting cap located in the center of the lid. The lid has a vent. Due to the vent design, when the existing steamer is used for cooking, excess steam naturally escapes from the vent and the edge of the lid after steam is generated inside the pot, preventing a significant increase in internal pressure. The internal pressure of the pot remains essentially equal to the external atmospheric pressure. Clearly, reducing steam escape and increasing internal pressure allows food to cook faster, which is the working principle of existing pressure cookers. Although the pressure-bearing capacity of the materials used in the existing steamer is lower than that of existing pressure cookers, it can withstand a slight increase in pressure during cooking while ensuring safety and accelerating food cooking. However, due to its structural design, the existing steamer lacks pressurization capabilities. Therefore, when cooking food using the existing steamer, it is not possible to accelerate food cooking by increasing the internal pressure, resulting in a relatively limited function. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model proposes a safe pressure cooking device. This device improves the structure of existing steamers to enable them to pressurize, thereby solving the problem mentioned in the background art that existing steamers lack pressurization capabilities and have limited functionality.
[0004] This utility model is achieved through the following technical solution:
[0005] A safe pressure cooking device includes a pot body, a pot lid, and a lifting cap located at the center of the pot lid. The pot lid has a vent hole. It also includes a sealing ring, a crossbeam, and a steam vent valve. The sealing ring is detachably fitted onto the edge of the pot lid to seal the gap between the edge of the pot lid and the pot body, reducing the release of steam from the pot body through this gap. One end of the crossbeam is connected to the lifting cap. The steam vent valve is installed at the other end of the crossbeam, with its bottom covering the vent hole. A sealing gasket is fixedly installed on the bottom surface of the steam vent valve to seal the gap between the steam vent valve and the top surface of the pot lid. When the steam vent valve is closed, it seals the vent hole, forming a seal during cooking. During cooking, as the internal temperature of the pot rises and steam is continuously generated, the steam vent valve opens and closes in a timely manner according to the changes in the internal pressure of the pot, releasing excess steam and thus maintaining a relatively stable internal pressure. During cooking, the cooking device uses a sealing ring, steam vent valve, and sealing gasket to seal the pot body and lid, allowing pressure to be applied inside the pot. As the internal pressure increases to a certain level, the steam vent valve opens to release pressure under the action of steam pressure. Even if the steam vent valve fails to open, the steam pressure can still push open the sealing ring on the edge of the lid, allowing steam to escape from the gap between the edge of the lid and the pot body.
[0006] Furthermore, the exhaust valve includes a guide cylinder, a piston plate, a limiting cylinder, and a spring; the piston plate is slidably disposed inside the guide cylinder, and an annular step for sealing the piston plate is formed at the bottom of the guide cylinder. The top of the guide cylinder is fixed to the bottom surface of the left end of the crossbeam plate. Multiple exhaust grooves are provided in annular distribution on the side wall of the guide cylinder. The limiting cylinder is a cylindrical structure with a closed bottom end, which is installed at the left end of the crossbeam plate and passes through the top of the guide cylinder. The spring is disposed inside the guide cylinder and located between the piston plate and the limiting cylinder. The sealing gasket is fixed to the bottom surface of the guide cylinder. The steam pressure inside the pot pushes the piston plate to compress the spring, and the steam can be discharged through the exhaust groove to relieve pressure.
[0007] Furthermore, the bottom end of the guide rod is fixed to the piston plate, and its top end passes through the limiting cylinder. The spring is fitted onto the guide rod, and the guide rod can guide the spring inside the guide cylinder.
[0008] Furthermore, a rocker arm is hinged to the top surface of the crossbeam plate, and a Y-shaped connecting plate is hinged to the top of the guide rod. The left end of the rocker arm is hinged to the Y-shaped connecting plate, and the right end of the rocker arm can be pressed down to drive the guide rod to rise through the Y-shaped connecting plate, thereby driving the piston plate to rise inside the guide cylinder, thus opening the exhaust groove on the side wall of the guide cylinder to release steam and relieve pressure, which can facilitate manual control and rapid pressure relief.
[0009] Furthermore, the right end of the crossbeam plate is detachably connected to the lifting cap. After removing the crossbeam plate, the steam exhaust valve can be removed, thereby restoring the cooking device to the cooking function of a regular steamer.
[0010] Furthermore, a connecting cap is fixed to the right end of the crossbeam plate. The connecting cap is fitted onto the lifting cap, and the connecting cap and the lifting cap are detachably connected by an internal hex bolt. By removing the connecting cap, the crossbeam plate can be removed, thereby restoring the cooking device to the cooking function of a regular steamer.
[0011] Furthermore, the lifting cap is equipped with a weight-bearing cap, which increases the weight on the lid to ensure that the edge of the lid presses tightly against the sealing ring, thereby improving the sealing performance at this point.
[0012] Furthermore, the load-bearing cap is threadedly connected to the connecting cap, which facilitates the assembly and disassembly of the load-bearing cap.
[0013] As can be seen from the above technical solution, the beneficial effects of the safe pressure cooking device provided by this utility model are as follows:
[0014] This cooking device is an improvement on the existing steamer structure, enabling the steamer to increase micro-pressure to accelerate food cooking. During cooking, the device uses a sealing ring, a steam vent valve, and a sealing gasket to seal the pot body and lid, allowing pressure to build up inside the pot. As the pressure inside the pot increases to a certain level, the steam vent valve opens to release pressure. Even if the steam vent valve fails to open, the steam pressure can still push open the sealing ring on the edge of the lid, allowing steam to escape from the gap between the lid and the pot body. This cooking device increases micro-pressure inside the pot during cooking to accelerate food cooking, and the lid can be quickly opened or closed. It avoids the safety hazard of excessive pressure building up inside the pot that could cause splattering. By applying micro-pressure, the device accelerates food cooking. The pressurization structure enhances the functionality of this cooking device. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an existing steamer.
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0018] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A in the middle.
[0019] Figure 4 for Figure 2 Enlarged schematic diagram of the local structure at point B.
[0020] Figure 5 This is a three-dimensional structural diagram of the present invention.
[0021] Figure 6 This is a schematic diagram of the exploded structure of this utility model.
[0022] Figure 7 for Figure 6 A three-dimensional structural diagram of the pressurized section.
[0023] The components in the diagram are named as follows: 1. Pot body; 2. Pot lid; 3. Lifting cap; 4. Vent; 5. Sealing ring; 6. Load-bearing cap; 7. Crossbeam plate; 8. Rocker plate; 9. Exhaust valve; 9.1. Guide cylinder; 9.2. Piston plate; 9.3. Exhaust groove; 9.4. Limiting cylinder; 9.5. Spring; 9.6. Guide rod; 10. Sealing gasket; 11. U-shaped hinge seat; 12. Connecting cap; 13. Hex socket head cap bolt; 14. Y-type connecting plate. Detailed Implementation
[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0025] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] A safe pressurized cooking device, such as Figures 2 to 7 As shown, it mainly consists of a pot body 1, a pot lid 2, a lifting cap 3, a sealing ring 5, a crossbeam plate 7, a rocker plate 8, a steam exhaust valve 9, and a connecting cap 12.
[0027] The lifting cap 3 is located at the center of the pot lid 2. The pot lid 2 is provided with an exhaust hole 4. The pot body 1, pot lid 2, lifting cap 3 and exhaust hole 4 are conventional structures of existing steamers, and will not be described in detail here.
[0028] The sealing ring 5 is detachably fitted onto the edge of the lid 2 to seal the gap between the edge of the lid 2 and the pot body 1, reducing the release of steam from the pot body 1 through the gap between the edge of the lid 2 and the pot body 1, which is beneficial for forming a seal in the pot body 1 when pressurized.
[0029] A connecting cap 12 is welded to the right end of the crossbeam plate 7. The connecting cap 12 is fitted onto the lifting cap 3. The connecting cap 12 and the lifting cap 3 are detachably connected by an internal hex bolt 13. The crossbeam plate 7 can be removed by removing the connecting cap 12.
[0030] The exhaust valve 9 is installed on the left end of the crossbeam plate 7. The bottom of the exhaust valve 9 covers the exhaust port 4. The exhaust valve 9 includes a guide cylinder 9.1, a piston plate 9.2, a limiting cylinder 9.4, a spring 9.5, and a guide rod 9.6. The piston plate 9.2 is slidably disposed inside the guide cylinder 9.1. An annular step for sealing the piston plate 9.2 is formed at the bottom of the guide cylinder 9.1. The top of the guide cylinder 9.1 is fixed to the bottom surface of the left end of the crossbeam plate 7. Multiple exhaust grooves 9.3 are arranged in annular pattern on the side wall of the guide cylinder 9.1. The limiting cylinder 9.4 is a cylindrical structure with a closed bottom. It is installed on the left end of the crossbeam plate 7 and passes through the top of the guide cylinder 9.1. The bottom end of the guide rod 9.6 is fixed on the piston plate 9.2, and its top end passes through the limiting cylinder 9.4. The spring 9.5 is fitted onto the guide rod 9.6. The guide rod 96 is located between the piston plate 9.2 and the limiting cylinder 9.4. The guide rod 9.6 can guide the spring 9.5 inside the guide cylinder 9.1. The bottom surface of the guide cylinder 9.1 is fixedly provided with a sealing gasket 10 for sealing the gap between the exhaust valve 9 and the top surface of the pot lid 2. The steam pressure inside the pot body 1 pushes the piston plate 9.2 to compress the spring 9.5, and the steam can be discharged through the exhaust groove 9.3 to relieve pressure. Specifically, the outer wall of the top end of the guide cylinder 9.1 and the outer wall of the top end of the limiting cylinder 9.4 are both provided with annular outward flanges. The limiting cylinder 9.4 passes through the crossbeam plate 7 and its annular outward flange is embedded in the top surface of the crossbeam plate 7. The annular outward flange at the top end of the guide cylinder 9.1, the crossbeam plate 7, and the annular outward flange at the top end of the limiting cylinder 9.4 are detachably connected by multiple bolt and nut assemblies.
[0031] As a preferred embodiment, in this example, Figures 4 to 7 As shown, a rocker plate 8 is hinged to the top surface of the crossbeam plate 7, and a Y-shaped connecting plate 14 is hinged to the top of the guide rod 9.6. The left end of the rocker plate 8 is hinged to the Y-shaped connecting plate 14. The right end of the rocker plate 8 can be pressed down to drive the guide rod 9.6 to rise through the Y-shaped connecting plate 14, thereby driving the piston plate 9.2 to rise inside the guide cylinder 9.1, thereby opening the exhaust groove 9.3 on the side wall of the guide cylinder 9.1 to release steam and relieve pressure, which can facilitate manual control and rapid pressure relief.
[0032] Specifically, a U-shaped hinge seat 11 is welded to the top surface of the crossbeam plate 7, and the middle part of the rocker plate 8 is hinged to the top of the U-shaped hinge seat 11.
[0033] As a preferred embodiment, in this example, Figures 4 to 7As shown, the lifting cap 3 is provided with a load-bearing cap 6, which is threadedly connected to the connecting cap 12, making it easy to install and remove the load-bearing cap 6; the load-bearing cap 6 can increase the weight on the pot lid 2 to ensure that the edge of the pot lid 2 presses tightly against the sealing ring 5, thereby improving the sealing performance at this point.
[0034] The working principle of this embodiment:
[0035] This cooking device is an improvement on the existing steamer structure, enabling the steamer to increase micro-pressure to accelerate food cooking. After removing the sealing ring 5 and connecting cap 12, along with the crossbeam plate 7 and vent valve 9, the vent 4 on the lid 2 is opened. This cooking device is used for boiling water and cooking food, similar to an existing steamer. The sealing ring 5 is fitted onto the edge of the lid 2, and the connecting cap 12 is installed on the lifting cap 3, so that the bottom end of the guide cylinder 9.1 covers the vent 4 on the lid 2. The sealing gasket 10 seals the gap between the guide cylinder 9.1 and the top surface of the lid 2. During cooking, this device can create micro-pressure within the pot body 1 to accelerate food cooking. For example, through the weight design of the lid 2 and its mounted components, or the thrust design of the compressed spring 9.5, the steam pressure inside the pot body 1 can be increased by 10 kPa compared to atmospheric pressure. A micro-pressure of a~30kPa is formed. During cooking, when the steam pressure exceeds the upper limit, the steam inside the pot body 1 can be discharged from the edge of the lid 2 or from the exhaust groove 9.3 via the upper piston plate 9.2 to relieve pressure. The lid 2 can be quickly opened or closed, and excessive pressure will not form inside the pot body 1, which could lead to the safety hazard of frying. This is because the edge of the lid 2 is sealed to the pot body 1 by a sealing ring 5. When the steam pressure exceeds the weight formed by the lid 2 and its components at the top of the pot body 1, the steam inside the pot body 1 will be discharged from the sealing ring 5 at the edge of the lid 2. The steam pressure can push the piston plate 9.2 upward, causing the steam to be discharged from the exhaust groove 9.3 on the side wall of the guide cylinder 9.1. This can prevent the pressure inside the pot body 1 from being too high. By applying micro-pressure, the cooking device can accelerate the cooking process. The cooking device has a pressurization structure, which increases its functionality.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A safe pressure cooking device, comprising a pot body (1), a pot lid (2), and a lifting cap (3) disposed at the center of the pot lid (2), wherein the pot lid (2) is provided with a vent (4), characterized in that, Also includes: A sealing ring (5) is detachably fitted onto the edge of the lid (2) to seal the gap between the edge of the lid (2) and the pot body (1). A crossbeam plate (7) is connected at one end to a lifting cap (3); The exhaust valve (9) is installed at the other end of the crossbeam plate (7). The bottom of the exhaust valve (9) covers the exhaust hole (4). A sealing gasket (10) for sealing the gap between the exhaust valve (9) and the top surface of the pot lid (2) is fixedly provided on the bottom surface of the exhaust valve (9).
2. The safe pressurized cooking device according to claim 1, characterized in that: The exhaust valve (9) includes a guide cylinder (9.1), a piston plate (9.2), a limiting cylinder (9.4), and a spring (9.5). The piston plate (9.2) is slidably disposed inside the guide cylinder (9.1). An annular step for blocking the piston plate (9.2) is formed at the bottom of the guide cylinder (9.1). The top of the guide cylinder (9.1) is fixed to the bottom surface of the left end of the crossbeam plate (7). Multiple exhaust grooves (9.3) are provided on the side wall of the guide cylinder (9.1) in an annular distribution. The limiting cylinder (9.4) is a cylindrical structure with a closed bottom end. It is installed at the left end of the crossbeam plate (7) and passes through the top of the guide cylinder (9.1). The spring (9.5) is disposed inside the guide cylinder (9.1) and located between the piston plate (9.2) and the limiting cylinder (9.4). The sealing gasket (10) is fixed to the bottom surface of the guide cylinder (9.1).
3. The safe pressurized cooking device according to claim 2, characterized in that: The exhaust valve (9) also includes a guide rod (9.6), the bottom end of which is fixed to the piston plate (9.2), and the top end of which passes through the limiting cylinder (9.4). A spring (9.5) is fitted on the guide rod (9.6).
4. The safe pressurized cooking device according to claim 3, characterized in that: The top surface of the crossbeam plate (7) is hinged with a rocker plate (8), and the top end of the guide rod (9.6) is hinged with a Y-shaped connecting plate (14). The left end of the rocker plate (8) is hinged to the Y-shaped connecting plate (14).
5. The safe pressure cooking device according to any one of claims 1 to 4, characterized in that: The right end of the crossbeam plate (7) is detachably connected to the lifting cap (3).
6. The safe pressurized cooking device according to claim 5, characterized in that: The right end of the crossbeam plate (7) is fixed with a connecting cap (12), which is fitted onto the lifting cap (3). The connecting cap (12) and the lifting cap (3) are detachably connected by an internal hex bolt (13).
7. The safe pressurized cooking device according to claim 6, characterized in that: The lifting cap (3) is equipped with a load-bearing cap (6).
8. The safe pressurized cooking device according to claim 7, characterized in that: The load-bearing cap (6) is threadedly connected to the connecting cap (12).