Sealing structure and electric cooker

Abstract

The utility model relates to a sealing structure and an electric cooker, the sealing structure comprises an annular sealing structure, the sealing structure is divided into a first section, a second section, a third section and a fixed section in sequence from the inner diameter of the sealing structure to the outer diameter of the sealing structure; the first section is transversely arranged; the second section is bent, so that the third section is arranged above the first section; the fixed section is bent, and the bent part of the fixed section is arranged above the third section; an elastic lip is arranged on the first section in an extending manner; the elastic lip is arranged towards the third section, and the tail end of the elastic lip is a bent arc section; the number of the elastic lips is two, and the bent arc sections of the two elastic lips are oppositely arranged. According to the sealing structure, the elastic lips abut against the third section, the two elastic lips are guided to oppositely topple to define the air bag cavity, the elastic deformation resistance of the sealing structure is improved, contact between the sealing structure and an installation position plane is tighter, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a sealing structure and an electric rice cooker. Background Art

[0002] The sealing performance of an electric rice cooker is a key factor affecting its performance. To ensure this, a sealing ring is installed on the lid of the rice cooker. When the lid and the rice cooker body are closed, the lid presses the sealing ring against the rice cooker body, achieving a seal between the rice cooker body and the lid.

[0003] The fit and filling accuracy between the sealing ring and the rice cooker body are key factors influencing sealing performance. The width of the gap between the rice cooker body and lid can vary due to factors such as dimensional accuracy errors, assembly errors, vibration, and external impact. This varying gap width can affect the fit between the sealing ring and the rice cooker body, and even excessively wide gaps can exceed the effective operating range of the sealing ring, reducing the rice cooker's sealing performance.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a sealing structure and an electric rice cooker to improve the sealing performance of the electric rice cooker.

[0006] The technical solution of the utility model is as follows:

[0007] A sealing structure, wherein the sealing structure is annular and is divided into a first section, a second section, a third section and a fixed section in sequence from the inner diameter to the outer diameter of the sealing structure;

[0008] The first section is arranged horizontally;

[0009] The second section is bent so that the third section is arranged above the first section;

[0010] The fixed section is bent, and the bent portion of the fixed section is arranged above the third section;

[0011] An elastic lip is extended from the first section; the elastic lip is arranged toward the third section, and the end of the elastic lip is a curved segment; two elastic lips are provided, and the curved segments of the two elastic lips are arranged facing each other.

[0012] A further technical solution is that circular ribs are provided on the raised lower surface of the first section, and the circular ribs are arranged in a ring shape along the annular path of the sealing structure; there are at least two adjacent circular ribs, and the circular ribs are arranged in parallel; and there are gaps between adjacent circular ribs.

[0013] A further technical solution is that the second segment includes a first straight segment, a second straight segment and an arc segment; the arc segment is arranged between the first straight segment and the second straight segment; the first segment and the first straight segment are arranged at an obtuse angle; the third segment and the second straight segment are arranged at an obtuse angle.

[0014] A further technical solution is that the obtuse angle between the third segment and the second straight segment is smaller than the obtuse angle between the first segment and the first straight segment.

[0015] A further technical solution is that the length of the first straight line segment is smaller than the length of the second straight line segment.

[0016] Its further technical solution is that the fixed section includes a fourth section and a fifth section; the fourth section is connected to the third section, and the fourth section is arranged upward; the fifth section is arranged horizontally; a first limiting lip is extended on the fifth section; and the first limiting lip is arranged toward the third section.

[0017] A further technical solution is that a second limiting lip is extended from the fourth section, and the second limiting lip and the third section are arranged at the same height.

[0018] A further technical solution is that a gap is left between the end of the elastic lip and the third section.

[0019] The electric rice cooker comprises a rice cooker body, a rice cooker cover and a sealing structure; the sealing structure is arranged between the rice cooker body and the rice cooker cover; and the rice cooker cover is provided with a slot for the fixing section to be inserted into.

[0020] The beneficial technical effects of the present utility model are as follows:

[0021] (1) In the sealing structure of the present invention, the second section is bent so that the third section is arranged above the first section. When the sealing structure is squeezed, the first section can swing significantly around the bent second section, increasing the compression of the sealing structure in the vertical direction to fill and seal a larger gap. At the same time, the fixed section is also provided with a bend. The bent portion of the fixed section is arranged above the third section and can hook the installation position to facilitate the fixing of the sealing structure. In addition, an elastic lip is also provided on the first section. When the first section is squeezed in the vertical direction, the elastic lip will press against the third section, improving the ability of the sealing structure to resist elastic deformation, allowing the sealing structure to contact the installation position plane more closely and improving the sealing effect. The ends of the elastic lips are provided with curved sections facing each other. When the first section is squeezed, both elastic lips contact the third section, further improving the ability of the sealing structure to resist elastic deformation. The curved sections slide along the third section, guiding the two elastic lips to tilt toward each other and enclose to form an airbag cavity. The airbag cavity formed between the first section and the second section increases the spatial elasticity of the sealing structure, allowing the sealing structure to better fill the gap and ensure its sealing performance.

[0022] (2) Furthermore, a plurality of raised circular ribs are provided on the first section. The first section contacts the mounting plane via the circular ribs. The circular ribs increase the thickness of the first section, thereby enhancing the structural strength and compression capacity of the sealing structure, thereby improving the tensile and compressive resistance of the sealing structure, and the contact effect between the sealing structure and the mounting plane. In addition, the circular ribs can form additional contact points between the sealing structure and the mounting plane, thereby improving the sealing performance.

[0023] (3) Furthermore, the second segment includes a first straight segment and a second straight segment. When the first segment rotates around the arc segment, the first straight segment and the second straight segment extend the distance between the first segment and the arc segment. That is, the first straight segment and the second straight segment extend the distance from the first segment to its swing center. At this time, during the up and down swinging of the first segment, the change in the horizontal angle of the first segment is smaller, so that during the up and down swinging of the first segment, the angle between the lower surface of the first segment and the flat part it contacts is smaller, and the first segment can better fit the contact surface, thereby ensuring the sealing performance of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A vertical cross-sectional structural diagram of the sealing structure of the present invention is shown.

[0025] Figure 2 Shows a cross-sectional view of the sealing structure of the present invention.

[0026] Figure 3 The utility model shows a vertical cross-sectional structural schematic diagram of the electric rice cooker.

[0027] Figure 4 A partial enlarged view of the electric rice cooker of the present invention at position A is shown.

[0028] Markings in the accompanying drawings:

[0029] 1. Pot lid; 11. Slot; 111. Limiting slot; 2. First section; 21. Elastic lip; 211. Arc section; 22. Airbag cavity; 23. Circular rib; 3. Second section; 31. First straight section; 32. Second straight section; 33. Arc section; 4. Third section; 5. Fixed section; 51. Fourth section; 511. Second limiting lip; 52. Fifth section; 521. First limiting lip; 6. Pot body. DETAILED DESCRIPTION

[0030] To make the purposes, features, and advantages of this utility model more clearly understood, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology. They are not intended to limit the conditions for the implementation of this utility model and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, as long as they do not affect the efficacy and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0031] In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like are defined as indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0032] Example 1

[0033] Figure 1 A vertical cross-sectional structural diagram of the sealing structure of the present invention is shown. Figure 2 The cross section of the sealing structure of the present invention is shown. Figure 1 and Figure 2The sealing structure is annular, and along the inner diameter of the sealing structure to the outer diameter of the sealing structure, the sealing structure is divided into a first section 2, a second section 3, a third section 4 and a fixed section 5 in sequence. The first section 2 is arranged horizontally. The second section 3 is bent so that the third section 4 is arranged above the first section 2. When the sealing structure is squeezed, the first section 2 can swing significantly around the bent second section 3, thereby increasing the compression of the sealing structure in the vertical direction to fill and seal a larger gap. The fixed section 5 is bent, and the bent part of the fixed section 5 is arranged above the third section 4. The bent part of the fixed section 5 is arranged above the third section 4 and can hook the installation position to facilitate fixing the sealing structure.

[0034] Among them, an elastic lip 21 is extended on the first section 2, and the elastic lip 21 is arranged toward the third section 4. When the first section 2 is squeezed in the vertical direction, the elastic lip 21 will press against the third section 4, thereby improving the sealing structure's ability to resist elastic deformation, allowing the sealing structure to be in closer contact with the installation position plane, and improving the sealing effect. The end of the elastic lip 21 is a curved segment 211. There are two elastic lips 21, and the curved segments 211 of the two elastic lips 21 are arranged facing each other. When the first section 2 is squeezed, both elastic lips 21 contact the third section 4, further improving the sealing structure's ability to resist elastic deformation. The curved segment 211 slides along the third section 4, guiding the two elastic lips 21 to tilt toward each other and enclose to form an airbag cavity 22. The airbag cavity 22 formed between the first section 2 and the third section 4 increases the spatial elasticity of the sealing structure, allowing the sealing structure to better fill the gap to ensure its sealing performance.

[0035] Please refer to Figure 1 and Figure 2 , the lower surface of the first section 2 is raised to provide a circular rib 23, and the circular rib 23 is arranged in a ring shape along the annular path of the sealing structure. There are at least two circular ribs 23, and adjacent circular ribs 23 are arranged in parallel. There are gaps between adjacent circular ribs 23. The first section 2 contacts the mounting plane through the circular ribs 23. The circular ribs 23 increase the thickness of the first section 2, enhance the structural strength and compression capacity of the sealing structure, and thereby improve the tensile and compressive resistance of the sealing structure, as well as the contact effect between the sealing structure and the mounting plane. In addition, the circular ribs 23 can form additional contact points between the sealing structure and the mounting plane, thereby improving the sealing performance.

[0036] Preferably, a gap is left between the end of the elastic lip 21 and the third segment 4 to reduce the elastic force of the sealing structure when the first segment 2 initially contacts the contact surface. This allows the first segment 2 to more easily rotate about the arc segment 33, allowing the first segment 2 to quickly adjust its position and better fit the contact surface, thereby ensuring the sealing effect of the sealing structure.

[0037] Please refer to Figure 1 and Figure 2The second segment 3 includes a first straight segment 31, a second straight segment 32, and an arc segment 33. The arc segment 33 is arranged between the first straight segment 31 and the second straight segment 32. Due to the large shape change, the arc segment 33 has obvious stress concentration phenomenon and is more likely to deform when subjected to force. The first segment 2 and the first straight segment 31 are arranged at an obtuse angle. The third segment 4 and the second straight segment 32 are arranged at an obtuse angle. The first straight segment 31 increases the distance from the first segment 2 to the arc segment 33. Correspondingly, the second straight segment 32 increases the distance from the third segment 4 to the arc segment 33, and the third segment 4 is arranged above the first segment 2. When the first segment 2 is squeezed, the squeezing force is transmitted along the first segment 2, the first straight segment 31, and the arc segment 33. Due to the obvious stress concentration phenomenon and large deformation of the arc segment 33, the first segment 2 swings with the arc segment 33 as the rotation center. The first straight segment 31 increases the distance between the first segment 2 and the arc segment 33, that is, the first straight segment 31 increases the distance between the first segment 2 and the arc segment 33, that is, the first straight segment 31 increases the distance from the first segment 2 to the rotation center. The first section 2 swings up and down the same distance, and the angle between the first section 2 and the horizontal plane changes less. When the contact surface squeezes the first section 2, the first section 2 can better fit the contact surface, ensuring the sealing performance of the sealing structure.

[0038] Preferably, the obtuse angle between the third segment 4 and the second straight segment 32 is smaller than the obtuse angle between the first segment 2 and the first straight segment 31, and the length of the first straight segment 31 is smaller than the length of the second straight segment 32. This makes the vertical distance between the arc segment 33 and the first segment 2 closer. When the first segment 2 swings with the arc segment 33 as the rotation center, the vertical distance between the first segment 2 and the rotation center is closer. When the first segment 2 swings up and down by the same distance, the angle between the first segment 2 and the horizontal plane changes. When the contact surface squeezes the first segment 2, the first segment 2 can better fit the laterally arranged contact surface, ensuring the degree of fit between the first segment 2 and the contact area. At the same time, the length of the first straight segment 31 is smaller than the length of the second straight segment 32, ensuring that when the first segment 2 rotates around the arc segment 33, the elastic lip 21 will move toward the third segment 4 and contact the third segment 4.

[0039] Please refer to Figure 1 and Figure 2 The fixed section 5 includes a fourth section 51 and a fifth section 52. The fourth section 51 is connected to the third section 4, and the fourth section 51 is arranged upward. The fifth section 52 is arranged horizontally. A first limiting lip 521 is extended from the fifth section 52. The first limiting lip 521 is arranged toward the third section 4. An included angle is provided between the fourth section 51 and the fifth section 52, and between the fifth section 52 and the first limiting lip 521, so that the fixed section 5 can better hook the installation position, thereby facilitating the fixing of the sealing structure.

[0040] Preferably, a second limiting lip 511 extends from the fourth segment 51, and is positioned at the same height as the third segment 4. Once the fixed segment 5 is inserted into the fixed position, the second limiting lip 511 abuts against the outside of the fixed position to maintain position. Simultaneously, the second limiting lip 511 closes the gap between the fixed segment 5 and the fixed position, ensuring the sealing efficiency of the sealing structure.

[0041] The specific workflow of this embodiment is as follows:

[0042] When sealing the gap between the upper and lower mounting surfaces, the sealing structure hooks onto the upper mounting surface through the angle between the fourth segment 51 and the fifth segment 52, as well as the angle between the fifth segment 52 and the first retaining lip 521. The upper and lower mounting surfaces are then closed. During the closing process, the first segment 2 contacts the lower mounting surface. At this point, the circular ribs 23 first contact the lower mounting surface. The lower mounting surface pushes the first segment 2 upward around the arc segment 33, causing more circular ribs 23 to contact the lower mounting surface. As the upper and lower mounting surfaces continue to approach, the elastic lip 21 contacts the third segment 4, enhancing the sealing structure's resistance to elastic deformation. As the upper and lower mounting surfaces further approach, the curved segment 211 slides along the third segment 4, causing the two elastic lips 21 to tilt toward each other and close together. An airbag cavity 22 is formed between the two elastic lips 21 and the first segment 2. The first segment 2 is supported by the elastic lips 21 and the airbag cavity 22, allowing it to fit more closely to the lower mounting surface.

[0043] Example 2

[0044] Figure 3 The utility model shows a vertical cross-sectional structural schematic diagram of the electric rice cooker. Figure 4 The figure shows a partial enlarged view of the rice cooker of the present invention at position A. Please refer to Figure 3 and Figure 4 Based on the first embodiment, the second embodiment discloses an electric rice cooker, which includes a pot body 6, a pot lid 1 and a sealing structure. The sealing structure is arranged between the pot body 6 and the pot lid 1. A slot 11 is provided on the pot lid 1 for the fixed section 5 to be snapped in. A limiting groove 111 is provided on the inner wall of the slot 11 for the first limiting lip 521 to be snapped in. The sealing structure is fixed to the pot lid 1 through the slot 11 and the limiting groove 111. When the pot lid 1 and the pot body 6 are closed, the pot body 6 contacts and pushes the first section 2. The first section 2 is pushed by the enclosure to swing upward around the arc section 33. During the upward swing of the first section 2, more circular ribs 23 contact the pot body 6, the elastic lip 21 presses against the third section 4, and the two elastic lips 21 and the first section 2 surround to form an airbag cavity 22. In order to better support the first section 2, the circular ribs 23 can better fit the pot body 6.

[0045] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A sealing structure, characterized in that: The sealing structure is annular, and is divided into a first section, a second section, a third section and a fixed section along the inner diameter to the outer diameter of the sealing structure; The first section is arranged horizontally; The second section is bent so that the third section is arranged above the first section; The fixed section is bent, and the bent portion of the fixed section is arranged above the third section; An elastic lip is extended from the first section; the elastic lip is arranged toward the third section, and the end of the elastic lip is a curved segment; two elastic lips are provided, and the curved segments of the two elastic lips are arranged facing each other.

2. The sealing structure according to claim 1, wherein: The lower surface of the first section is protruded with circular ribs, which are arranged in a circular shape along the annular path of the sealing structure; there are at least two circular ribs, and adjacent circular ribs are arranged in parallel; there are gaps between adjacent circular ribs.

3. The sealing structure according to claim 1, wherein: The second segment includes a first straight segment, a second straight segment and an arc segment; the arc segment is arranged between the first straight segment and the second straight segment; the first segment and the first straight segment are arranged at an obtuse angle; the third segment and the second straight segment are arranged at an obtuse angle.

4. The sealing structure according to claim 3, wherein: The obtuse angle between the third segment and the second straight segment is smaller than the obtuse angle between the first segment and the first straight segment.

5. The sealing structure according to claim 3, wherein: The length of the first straight line segment is shorter than the length of the second straight line segment.

6. The sealing structure according to claim 1, wherein: The fixed section includes a fourth section and a fifth section; the fourth section is connected to the third section, and the fourth section is arranged upward; the fifth section is arranged horizontally; a first limiting lip is extended from the fifth section; the first limiting lip is arranged toward the third section.

7. The sealing structure according to claim 6, wherein: A second limiting lip is extended from the fourth section, and the second limiting lip and the third section are arranged at the same height.

8. The sealing structure according to claim 1, wherein: A gap is left between the end of the elastic lip and the third section.

9. An electric rice cooker, characterized in that The electric rice cooker comprises a rice cooker body, a rice cooker cover and a sealing structure according to any one of claims 1 to 8; the sealing structure is arranged between the rice cooker body and the rice cooker cover; The pot cover is provided with a slot for the fixing section to be inserted into.

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