Pressure self-locking sealing ring and application thereof

Abstract

The application discloses a pressure self-locking sealing ring and application thereof, relates to the technical field of sealing rings, and discloses a sealing ring main body, which is in an annular structure; a big goose head sealing end head, which is arranged on the outer circumferential side of the sealing ring main body and is in an annular structure; and an elastic arm, which is arranged on the outer circumferential side of the sealing ring main body. When steam pressure is generated in the furnace cavity of a spray cooking stove, the pressure in the stove acts on the inner side of the elastic arm and the big goose head sealing end head, and the pressure drives the big goose head sealing end head to press the inclined side of the door body more tightly, so that the pressure self-locking effect is realized. The higher the pressure in the furnace cavity is, the greater the sealing pressure of the big goose head sealing end head to the door body is, high-temperature steam is effectively prevented from leaking outward, the disadvantage that the higher the traditional sealing pressure is, the easier the leakage is is solved, and the working safety of the spray cooking stove is improved.

Description

Technical Field

[0001] This invention relates to the field of sealing ring technology, and more particularly to pressure self-locking sealing rings and their applications. Background Technology

[0002] Spray cooking ovens rely on high-temperature steam within the oven cavity to cook food. During operation, the oven cavity maintains a certain pressure, and the sealing performance between the oven door and the door frame directly determines the safety of the equipment and the cooking effect. Most existing spray cooking ovens use ordinary silicone flat washers or ordinary U-shaped sealing strips for door sealing, relying on the mechanical clamping force of the door locking mechanism to achieve a seal.

[0003] The existing technology has the following drawbacks: 1. Relying solely on the mechanical clamping of the door lock has limited clamping force. When the pressure inside the oven increases, the internal steam pressure is prone to leaking out from the sealing gaps, resulting in steam leakage and pressure loss, which affects cooking efficiency. High-temperature steam leakage also poses a safety hazard of scalding operators. 2. Conventional sealing strips have a simple positioning and installation structure, but they are prone to displacement and twisting during assembly, resulting in poor assembly consistency. During the door closing process, the sealing strip is easily squeezed and curled by the door, further causing sealing failure. 3. Lacking a pressure self-compensation and self-locking structure, the greater the pressure inside the furnace cavity, the more likely the sealing gap will be stretched open. The higher the pressure, the greater the risk of leakage, and the sealing effect cannot be enhanced by the pressure of the medium.

[0004] Therefore, there is an urgent need to develop a sealing ring that can achieve pressure self-locking by utilizing the pressure of the medium inside the furnace cavity, with a greater sealing and clamping force as the pressure increases, while also being reliable in assembly and positioning, resistant to high temperatures, and suitable for the working conditions of spray cooking oven doors. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pressure self-locking sealing ring, wherein the sealing ring body has an annular structure; The goose-head sealing end is disposed on the outer periphery of the sealing ring body, and the goose-head sealing end has an annular structure. An elastic arm is disposed on the outer periphery of the sealing ring body, and the elastic arm forms a 90° angle with the sealing ring body; the elastic arm forms an angle of less than 90° with the goose-head sealing end; the elastic arm has a ring structure. The mounting positioning groove is located on the side of the main body of the sealing ring near the elastic arm; the mounting positioning groove is an annular U-shaped groove.

[0006] Preferably, the goose-head sealing end is provided with a thickened circular protrusion, which is located on the side of the goose-head sealing end near the elastic arm, and the thickened circular protrusion has a ring structure.

[0007] Preferably, the sealing ring body has a rectangular groove and a triangular groove in its internal circumferential direction. The rectangular groove is located on one side of the mounting and positioning groove, and the triangular groove is close to the large goose head sealing end.

[0008] Preferably, the main body of the sealing ring, the goose-head sealing end, and the elastic arm are all integrally molded from high-temperature resistant elastic silicone material.

[0009] Preferably, the circular protrusion and the goose-head sealing end are integrally formed.

[0010] The application of a pressure self-locking sealing ring includes a door body, a door frame, and a sealing ring. The door frame is provided with a mounting block for use with a positioning groove. The positioning groove of the sealing ring is installed on the mounting block. The included angle formed between the main body of the sealing ring and the elastic arm is close to the door frame. The large goose-head sealing end is close to the side of the door body. After the door body is closed, the large goose-head sealing end is close to the oblique side of the door body.

[0011] Preferably, the sealing ring is integrally set on the door frame and used in conjunction with the door body.

[0012] Preferably, the shape of the sealing ring varies depending on the shape of the door frame and can be one of the following: rectangular sealing ring, square sealing ring, elliptical sealing ring, circular sealing ring, or irregularly shaped sealing ring.

[0013] Beneficial effects: Compared with existing technologies, this invention features a goose-head sealing end and an elastic arm. When steam pressure is generated inside the furnace cavity of the spray cooking oven, the pressure acts on the inner side of the elastic arm and the goose-head sealing end. This pressure drives the goose-head sealing end to press more tightly against the oblique side of the door, achieving a pressure self-locking effect. The higher the pressure inside the furnace cavity, the greater the sealing pressure of the goose-head sealing end against the door, effectively preventing high-temperature steam from leaking outward. This solves the drawback of traditional sealing methods where higher pressure leads to easier leakage, thus improving the operational safety of the spray cooking oven. The U-shaped installation positioning groove allows for direct engagement with the mounting block on the door frame, simplifying assembly. The sealing ring is less prone to shifting or twisting, ensuring good assembly consistency and preventing the sealing ring from curling and failing when the door is closed and squeezed. The sealing ring features rectangular and triangular grooves inside. This reduces overall rigidity and enhances deformation compensation, adapting to the assembly tolerances of the door closure. Furthermore, the grooves can accommodate some thermal expansion deformation, extending the sealing ring's service life under high-temperature conditions. The goose-head sealing end features a thickened circular protrusion to increase tension and prevent weakening of the door's seal due to rising water temperature. Made of one-piece molded high-temperature resistant silicone, it withstands high-temperature steam environments, making it particularly suitable for the long-term high-temperature and humid conditions of spray cooking ovens. The sealing ring's outline can be customized into rectangular, circular, and irregular shapes to fit the door frame, offering high versatility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the pressure self-locking sealing ring of the present invention.

[0015] Figure 2 This is a schematic cross-sectional view of the spray cooking oven of the present invention.

[0016] Figure 3 This is a vertical cross-sectional structural diagram of the spray cooking oven of the present invention.

[0017] Figure 4 for Figure 3 The enlarged view at point A is a partial enlarged schematic diagram of the invention's sealing ring being assembled on the door frame and door body of the spray cooking oven.

[0018] In the attached diagram: 1-Main body of the sealing ring, 2-Big goose head sealing end, 3-Elastic arm, 4-Installation positioning groove, 5-Thickened circular protrusion, 6-Rectangular groove, 7-Triangular groove, 8-Door body, 9-Door frame, 10-Sealing ring, 11-Installation block. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] Example 1 Please refer to the accompanying drawings in the instruction manual. This embodiment is used for the oven door of a spray cooking oven. The outer contour of the sealing ring is a rectangular closed ring. The main body of the sealing ring 1 has a ring structure. The goose-head sealing end 2 is disposed on the outer periphery of the sealing ring body 1, and the goose-head sealing end 2 has an annular structure. The elastic arm 3 is disposed on the outer periphery of the sealing ring body 1, and the elastic arm 3 forms a 90° angle with the sealing ring body 1; the elastic arm 3 forms an angle of less than 90° with the goose-head sealing end 2; the elastic arm 3 has a ring structure. The mounting positioning groove 4 is located on the side of the sealing ring body 1 near the elastic arm 3; the mounting positioning groove 4 is an annular U-shaped groove.

[0021] The goose-head sealing end 2 is provided with a thickened circular protrusion 5, which is located on the side of the goose-head sealing end 2 close to the elastic arm 3, and the thickened circular protrusion 5 has a ring structure.

[0022] The sealing ring body 1 has a rectangular groove 6 and a triangular groove 7 arranged circumferentially inside. The rectangular groove 6 is located on one side of the mounting and positioning groove, and the triangular groove 7 is close to the goose-head sealing end 2. The rectangular groove 6 and the triangular groove 7 provide deformation buffer for the sealing ring, reduce the overall hardness, and improve the sealing compensation capability.

[0023] The main body of the sealing ring 1, the goose-head sealing end 2, the elastic arm 3, and the thickened circular protrusion 5 are all made of high-temperature resistant elastic silicone material through one-piece molding, which can withstand the high-temperature steam environment inside the spray cooking oven and resist damp heat aging.

[0024] The application of a pressure self-locking sealing ring is characterized by: including a door body 8, a door frame 9, and a sealing ring 10. The door frame 9 is provided with a mounting block 11 for use with a mounting positioning groove 4. The mounting positioning groove 4 of the sealing ring 10 is installed on the mounting block 11. The included angle formed between the main body 1 of the sealing ring and the elastic arm 3 is close to the door frame 9. The large goose head sealing end 2 is close to one side of the door body 8. After the door body 8 is closed, the large goose head sealing end 2 is close to the oblique side of the door body 8.

[0025] The sealing ring 10 is integrally set on the door frame 9 and works in conjunction with the door body 8.

[0026] The shape of the sealing ring 10 varies depending on the shape of the door frame 9, and can be one of the following: rectangular sealing ring, square sealing ring, elliptical sealing ring, circular sealing ring, or irregularly shaped sealing ring.

[0027] Applied to spray cooking ovens, such as Figure 2 , Figure 3 As shown, the spray cooking oven includes a furnace frame, a door frame 9 is assembled on the furnace frame, and a door 8 is hinged to the door frame 9; an mounting block 11 is fixedly installed on the door frame.

[0028] The sealing ring 10 is directly clamped onto the mounting block 11 of the door frame through the U-shaped mounting positioning groove 4, achieving quick positioning and assembly; the angle formed by the sealing ring body 1 and the elastic arm 3 is abutted against the surface of the door frame 9 to complete the sealing ring limit; the goose head sealing end 2 faces the oblique side of the door body 8.

[0029] The operator closes the door 8 of the spray cooking oven. The oblique side of the door 8 presses against the goose-head sealing end 2, causing the goose-head sealing end to undergo elastic deformation. The goose-head sealing end and the oblique side of the door fit tightly together, achieving a preliminary seal.

[0030] When the spray cooking oven starts working, high-temperature steam is generated inside the oven cavity. The pressure inside the oven cavity acts on the inner side of the elastic arm 3 and the inner inclined surface of the goose-head sealing end 2. The internal steam pressure pushes the elastic arm outward, and the force is transmitted to the goose-head sealing end 2, causing the goose-head sealing end to further press the inclined surface of the door body 8. The higher the steam pressure inside the oven cavity, the greater the pressing force of the goose-head sealing end on the door body, forming a pressure self-locking sealing effect, effectively preventing high-temperature steam inside the oven from leaking outward from the gap between the door body and the door frame.

[0031] When the pressure inside the furnace cavity is released, the medium pressure acting on the inside of the sealing ring disappears. Relying on the elasticity of the silicone itself, the goose-head sealing end rebounds, and the door can be opened easily.

[0032] In the above process, this invention features a goose-head sealing end and an elastic arm. When steam pressure is generated inside the furnace cavity of the spray cooking oven, the pressure inside the furnace acts on the inner side of the elastic arm and the goose-head sealing end. This pressure drives the goose-head sealing end to press more tightly against the oblique side of the door, achieving a pressure self-locking effect. The higher the pressure inside the furnace cavity, the greater the sealing pressure of the goose-head sealing end against the door, effectively preventing high-temperature steam from leaking outward. This solves the drawback of traditional sealing methods where higher pressure leads to easier leakage, thus improving the operational safety of the spray cooking oven. A U-shaped installation positioning groove is provided, allowing direct engagement with the mounting block on the door frame. Assembly is simple, the sealing ring is less prone to shifting or twisting, and assembly consistency is good, preventing the sealing ring from curling and failing when the door is closed and squeezed. The sealing ring features rectangular and triangular grooves inside. This reduces overall rigidity and enhances deformation compensation, adapting to the assembly tolerances of the door closure. Furthermore, the grooves can accommodate some thermal expansion deformation, extending the sealing ring's service life under high-temperature conditions. The goose-head sealing end features a thickened circular protrusion to increase tension and prevent weakening of the door's seal due to rising water temperature. Made of one-piece molded high-temperature resistant silicone, it withstands high-temperature steam environments, making it particularly suitable for the long-term high-temperature and humid conditions of spray cooking ovens. The sealing ring's outline can be customized into rectangular, circular, and irregular shapes to fit the door frame, offering high versatility.

[0033] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should also be considered within the scope of protection of the present invention. These will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

[0034] It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this invention can be combined with each other. In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A pressure self-locking sealing ring, characterized in that: The sealing ring body (1) has an annular structure; The goose-head sealing end (2) is disposed on the outer periphery of the sealing ring body (1) and the goose-head sealing end (2) has an annular structure. The elastic arm (3) is disposed on the outer periphery of the sealing ring body (1), and the elastic arm (3) forms a 90° angle with the sealing ring body (1); the elastic arm (3) forms an angle of less than 90° with the goose head sealing end (2); the elastic arm (3) has a ring structure. The mounting positioning groove (4) is located on the side of the sealing ring body (1) near the elastic arm (3); the mounting positioning groove (4) is an annular U-shaped groove.

2. The pressure self-locking sealing ring according to claim 1, characterized in that: The goose-head sealing end (2) is provided with a thickened circular protrusion (5), which is located on the side of the goose-head sealing end (2) close to the elastic arm (3) and has a ring structure.

3. The pressure self-locking sealing ring according to claim 1, characterized in that: The sealing ring body (1) has a rectangular groove (6) and a triangular groove (7) arranged in the inner circumferential direction. The rectangular groove (6) is located on one side of the installation positioning groove, and the triangular groove (7) is close to the goose head sealing end (2).

4. The pressure self-locking sealing ring according to claim 1, characterized in that: The main body (1), the goose-head sealing end (2), and the elastic arm (3) of the sealing ring are all integrally molded high-temperature resistant elastic silicone material.

5. The pressure self-locking sealing ring according to claim 2, characterized in that: The circular protrusion (5) and the goose-head sealing end (2) are integrally formed.

6. An application of the pressure self-locking sealing ring according to claims 1 to 5, characterized in that: The door includes a door body (8), a door frame (9), and a sealing ring (10). The door frame (9) is provided with a mounting block (11) for use with the mounting positioning groove (4). The mounting positioning groove (4) of the sealing ring (10) is installed on the mounting block (11). The included angle formed between the main body (1) of the sealing ring and the elastic arm (3) is close to the door frame (9). The large goose head sealing end (2) is close to one side of the door body (8). After the door body (8) is closed, the large goose head sealing end (2) is close to the oblique side of the door body (8).

7. The application of the pressure self-locking sealing ring according to claim 6, characterized in that: The sealing ring (10) is set on the door frame (9) and works in conjunction with the door body (8).

8. The application of the pressure self-locking sealing ring according to claim 6, characterized in that: The shape of the sealing ring (10) varies depending on the shape of the door frame (9), and can be one of the following: rectangular sealing ring, square sealing ring, elliptical sealing ring, circular sealing ring, or irregularly shaped sealing ring.

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