Sealing ring and gas stove

Abstract

The invention belongs to the technical field of kitchen appliances, and discloses a sealing ring and a gas stove. The sealing ring is used for the gas stove, the gas stove comprises a panel and a water pan, the water pan is stacked on the panel, the sealing ring comprises an annular sealing part, and the sealing part can be clamped between the water pan and the panel. A plurality of adsorption holes are formed in the surface of the side, facing the water pan and / or the surface of the side, facing the panel, of the sealing part. The adsorption holes are formed in the sealing part, so that the sealing part can deform when being extruded, gas in the adsorption holes flows outwards, vacuum is formed in the adsorption holes, a water pan or a panel is adsorbed, static friction force can be greatly increased, and the sealing effect is improved on the basis that the original waterproof function is reserved. And the panel is prevented from slipping in the using process after the water pan is locked, so that the water pan and the panel are effectively prevented from moving relative to each other, the overall performance and the using safety of the gas stove are improved, and the using experience of a user is improved.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a sealing ring and a gas stove. Background Technology

[0002] In existing built-in gas cooktops, a drip tray is installed on the glass panel. The drip tray is usually used to prevent liquids generated during cooking from splashing out and flowing into the cooktop, thus serving a waterproof function.

[0003] In actual use, due to various reasons (such as vibration during stove use, external force during user operation, etc.), the glass panel may slip. This not only affects the overall aesthetics of the gas stove, but may also lead to poor sealing between the water tray and the glass panel, and even cause safety hazards.

[0004] Currently, in existing gas stoves on the market, the drip tray and glass panel are sealed with a rubber ring. Most of these rubber rings only provide waterproofing and lack effective anti-movement measures, failing to meet users' needs for stability and safety in gas stoves. While adhesive bonding to the drip tray and glass panel offers strong adhesion, it may release harmful gases during the high-temperature operation of the gas stove, posing a potential threat to human health. Furthermore, the adhesive may fail at high temperatures, resulting in a loss of its anti-slip effect. Additionally, adhesive bonding presents a significant challenge to the cost of replacement and repair in after-sales service. Summary of the Invention

[0005] The purpose of this invention is to provide a sealing ring and a gas stove that can improve the sealing effect between the panel and the water tray, and also prevent the panel from slipping, thereby improving the stability and safety of the gas stove.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A sealing ring for a gas stove, the gas stove including a panel and a water tray, the water tray being stacked on the panel, the sealing ring including an annular sealing portion, the sealing portion being clampable between the water tray and the panel, the sealing portion having a plurality of adsorption holes on one side surface facing the water tray and / or one side surface facing the panel.

[0008] As an alternative to the aforementioned sealing ring, the cross-sectional area of ​​the adsorption hole gradually decreases from the outside to the inside along the depth direction of the adsorption hole.

[0009] As an alternative to the aforementioned sealing ring, the adsorption hole is a conical hole, and the cone angle of the adsorption hole on the surface of the sealing part facing the water receiving tray is greater than the cone angle of the adsorption hole on the surface of the sealing part facing the panel.

[0010] As an alternative to the aforementioned sealing ring, the cone angle of the adsorption hole on the surface of the sealing part facing the water receiving tray is 55°-65°.

[0011] And / or, the cone angle of the adsorption hole on the surface of the sealing part facing the panel is 25°-35°.

[0012] As an alternative to the aforementioned sealing ring, the plurality of adsorption holes are arranged in a circular array along the radial direction of the sealing portion, and the distribution density of the plurality of adsorption holes gradually decreases from the inside to the outside along the radial direction of the sealing portion;

[0013] And / or, the opening area of ​​the plurality of adsorption holes gradually increases from the inside to the outside along the radial direction of the sealing portion.

[0014] As an alternative to the aforementioned sealing ring, a pressure relief groove is provided on the side surface of the sealing part where the adsorption hole is located. The pressure relief groove extends circumferentially along the sealing part, and each adsorption hole communicates with at least one pressure relief groove.

[0015] As an alternative to the aforementioned sealing ring, the cross-sectional area of ​​the pressure relief groove gradually increases from the outside to the inside along the depth direction of the pressure relief groove;

[0016] And / or, the sidewall of the adsorption hole is provided with an air passage communicating with the pressure relief groove, the air passage is provided with an anti-backflow structure, the anti-backflow structure can prevent the gas in the pressure relief groove from flowing to the adsorption hole.

[0017] As an alternative to the aforementioned sealing ring, the anti-backflow structure is a backflow preventer, or the anti-backflow structure includes an elastic sealing element, which can close the air passage under its own elastic force and open the air passage under the action of the airflow flowing from the adsorption hole to the pressure relief groove in the air passage;

[0018] And / or, the flow area of ​​at least one end of the air passage connected to the adsorption hole gradually decreases from the adsorption hole toward the pressure relief groove.

[0019] As an alternative to the aforementioned sealing ring, the sealing ring further includes an annular body, which is connected to the sealing part and extends along the axial direction of the sealing part. The panel is provided with a mounting hole, and the annular body is interference-fitted into the mounting hole.

[0020] A gas stove, comprising:

[0021] A panel, wherein mounting holes are provided on the panel;

[0022] A burner head, the top of which passes through the mounting hole;

[0023] A water tray is stacked on the panel and arranged around the mounting holes;

[0024] The aforementioned sealing ring, wherein the sealing portion is disposed around the mounting hole and clamped between the water receiving tray and the panel.

[0025] The beneficial effects of this invention are:

[0026] The sealing ring provided by this invention features adsorption holes on the sealing part. When the sealing part is compressed, it deforms, causing the gas inside the adsorption holes to flow outwards, creating a vacuum inside the holes. This adsorbs the water tray or panel, significantly increasing static friction. While retaining the original waterproof function, it prevents the panel from slipping during use after the water tray is locked, effectively preventing the water tray and panel from moving relative to each other. This improves the overall performance and safety of the gas stove, enhancing the user experience. By improving the structure of the sealing ring, it achieves both waterproofing and panel-prevention, ensuring a good seal and stable panel position without requiring additional processes or adhesives.

[0027] The gas stove provided by this invention uses the aforementioned sealing ring, which can form a vacuum adsorption through compression and block gas backflow, thereby multiplying the static friction between the water tray, the sealing ring, and the panel. This solves the problem of the stove panel slipping under external force, and further enhances the waterproof and oil-repellent effect of the sealing ring, improves the internal corrosion resistance of the stove, thereby extending the overall service life of the gas stove and improving the user experience. Attached Figure Description

[0028] Figure 1 This is an exploded view of the gas stove provided by the present invention;

[0029] Figure 2 This is a cross-sectional view of the gas stove provided by the present invention;

[0030] Figure 3 This is a top view of a portion of the structure of the gas stove provided by the present invention;

[0031] Figure 4 This is a schematic diagram of the first structure of the sealing ring provided by the present invention;

[0032] Figure 5 This is a cross-sectional view of the sealing ring provided by the present invention;

[0033] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0034] Figure 7 This is a partial cross-sectional view of the sealing portion provided by the present invention;

[0035] Figure 8 This is a schematic diagram of the second structure of the sealing ring provided by the present invention;

[0036] Figure 9 yes Figure 8 A magnified view of a section at point B.

[0037] In the picture:

[0038] 10. Sealing ring; 11. Annular body; 12. Sealing part; 121. Adsorption hole; 121a. First adsorption hole; 121b. Second adsorption hole; 122. Pressure relief groove; 122a. First pressure relief groove; 122b. Second pressure relief groove; 123. Gas passage; 124. Elastic sealing element; 20. Water receiving tray; 30. Panel; 31. Mounting hole; 40. Burner head; 50. Burner; 60. Boiler rack; 70. Panel positioning plate. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] like Figure 1 As shown, the present invention provides a gas stove, including a panel 30, a burner 40, a burner 50, and a pot rack 60. The panel 30 is provided with mounting holes 31. The top of the burner 40 passes through the mounting holes 31 and is connected to the burner 50. The burner 40 is used to supply a mixture of gas and air to the burner 50 for combustion. The pot rack 60 is placed on the panel 30 to support the pot, so that there is a certain distance between the pot and the burner 50, avoiding the pot from being too close to the burner 50 and affecting the stability of the flame, thereby ensuring the heating effect of the flame on the pot.

[0044] Optionally, the gas stove also includes a panel positioning plate 70, which is sleeved on the outside of the burner head 40 and connected to the burner head 40. The panel positioning plate 70 cooperates with the mounting holes 31 of the panel 30 to achieve the positioning of the panel 30.

[0045] To prevent liquid from splashing into the cooktop during cooking, the gas stove also includes a drip tray 20 and a sealing ring 10. The drip tray 20 is mounted on the panel 30 and arranged circumferentially around the mounting hole 31. The drip tray 20 is used to catch splashed liquid. A sealing ring 10 is provided between the drip tray 20 and the panel 30. The sealing ring 10 can achieve a seal between the drip tray 20 and the panel 30, preventing liquid splashed onto the panel 30 from flowing into the cooktop through the gap between the drip tray 20 and the panel 30, thus playing a waterproof role.

[0046] like Figures 2-4As shown, the sealing ring 10 includes an annular body 11 and an annular sealing portion 12 connected to the annular body 11. The annular body 11 extends axially along the sealing portion 12, and the sealing portion 12 is connected to the top end of the annular body 11 and extends radially outward from the annular body 11. The annular body 11 is interference-fitted into the mounting hole 31, which can effectively prevent the sealing portion 12 from lateral slippage on the sealing basis. Specifically, the outer diameter of the annular body 11 is larger than the inner diameter of the mounting hole 31, so that the circumferential outer wall of the annular body 11 can abut against the inner wall of the mounting hole 31, realizing a sealing fit between the annular body 11 and the mounting hole 31. The sealing portion 12 extends radially along the annular body 11 and is clamped between the water receiving tray 20 and the panel 30 to seal the gap between the water receiving tray 20 and the panel 30, thereby achieving a waterproof effect.

[0047] Due to vibrations during gas stove use or external forces during user operation, the panel 30 may slip, affecting not only the overall aesthetics of the gas stove but also compromising the seal between the drip tray 20 and the panel 30. Existing sealing rings only provide waterproofing and lack effective anti-slip measures. Current technologies typically employ methods such as increasing the roughness of the contact surfaces or using adhesive to bond the drip tray to the panel. While adhesives can achieve strong adhesion, they may release harmful gases during the high-temperature operation of the gas stove, posing a potential threat to human health. Furthermore, adhesives may fail at high temperatures, resulting in a loss of anti-slip properties. On the other hand, adhesives present a significant challenge to the cost of replacement and repair in after-sales service.

[0048] To address the aforementioned issues, this embodiment improves the structure of the sealing ring 10, enabling it to not only provide waterproofing but also prevent the panel 30 from moving. This ensures both a good seal and stability of the panel 30's position without requiring additional processing or adhesives.

[0049] Specifically, in this embodiment, as Figure 5 and Figure 6 As shown, the sealing part 12 has multiple adsorption holes 121 on both the surface facing the water tray 20 and the surface facing the panel 30. When the sealing part 12 is squeezed by the panel 30 and the water tray 20, the gas inside the adsorption holes 121 is squeezed outward, creating a vacuum inside the adsorption holes 121, thereby adsorbing the water tray 20 or the panel 30. This sealing ring 10, while retaining its original waterproof function, effectively increases the static friction between the water tray 20 and the panel 30, preventing the panel 30 from slipping during use after the water tray 20 is locked. This effectively prevents the water tray 20 and the panel 30 from moving relative to each other, improving the overall performance and safety of the gas stove, and thus enhancing the user experience.

[0050] Furthermore, by providing adsorption holes 121 on the sealing part 12, physical adsorption can be used to keep the gas stove away without damaging the contact surface (i.e., non-destructive installation). The adsorption force is uniform, long-lasting, and without the release of harmful gases. It can also maintain a stable adsorption force in high-temperature environments and can effectively adapt to temperature changes and vibration environments during the use of the gas stove.

[0051] It should be noted that by setting the adsorption holes 121, the sealing part 12 forms a micro-suction cup structure. The pore size of the adsorption holes 121 is preferably in the μm range to improve the adsorption effect. Optionally, the maximum radial dimension of the adsorption holes 121 is less than 1 mm, and the specific pore size can be set according to actual needs, which is not limited here.

[0052] For ease of explanation, the adsorption holes 121 provided on the side surface of the sealing part 12 facing the water receiving tray 20 are designated as first adsorption holes 121a, which can adsorb the water receiving tray 20 after the sealing part 12 is compressed; the adsorption holes 121 provided on the side surface of the sealing part 12 facing the water receiving tray 20 are designated as second adsorption holes 121b, which can adsorb the panel 30 after the sealing part 12 is compressed. By adsorbing the water receiving tray 20 through the first adsorption hole 121a and the panel 30 through the second adsorption hole 121b, the relative positions of the water receiving tray 20 and the panel 30 can be kept unchanged, which is beneficial for achieving an effective anti-movement effect.

[0053] In this embodiment, both the first adsorption hole 121a and the second adsorption hole 121b are blind holes that do not penetrate along the axial direction of the sealing part 12, making the adsorption on both sides independent. It can be understood that the first adsorption hole 121a adsorbs the water receiving tray 20, and the second adsorption hole 121b adsorbs the panel 30. Since the water receiving tray 20 and the panel 30 are made of different materials and have different surface roughness, adsorption is achieved independently through the first adsorption hole 121a and the second adsorption hole 121b, resulting in a better adsorption effect.

[0054] In other embodiments, the adsorption hole 121 can be configured as a through hole penetrating the sealing part 12, so that the adsorption of the docking water tray 20 and the panel 30 can be achieved simultaneously through one adsorption hole 121.

[0055] In some other embodiments, the sealing part 12 may have a first adsorption hole 121a only on one side of the surface facing the water receiving tray 20, or a second adsorption hole 121b only on one side of the surface facing the panel 30. By providing an adsorption hole 121 on one side of the sealing part 12, the friction between the sealing part 12 and the water receiving tray 20 and the panel 30 can be increased, thereby achieving an effective anti-movement effect.

[0056] In this embodiment, the sealing ring 10 is made of silicone rubber, which can meet the requirements of high-temperature use environment while ensuring elastic sealing effect, and is odorless, which is conducive to improving the user experience.

[0057] To increase the static friction between the sealing part 12 and the water receiving tray 20 or the panel 30, the cross-sectional area of ​​the adsorption hole 121 gradually decreases from the outside to the inside along the depth direction of the adsorption hole 121. That is to say, the adsorption hole 121 is a tapered hole, and the end of the adsorption hole 121 near the water receiving tray 20 or the panel 30 has a larger opening, which is beneficial to increasing the adsorption area with the water receiving tray 20, thereby increasing the adsorption effect.

[0058] In this embodiment, both the first adsorption pore 121a and the second adsorption pore 121b are conical pores. The large opening size of the conical pore is beneficial for increasing the adsorption area, thereby improving the adsorption effect.

[0059] Optionally, the surface of the water receiving tray 20 facing the sealing part 12 and the surface of the panel 30 facing the sealing part 12 are flat. The adsorption hole 121 cooperates with the flat surface for adsorption, and the adsorption hole 121 forms a sealed space with the flat surface. The negative pressure environment inside the adsorption hole 121 is not easily destroyed, which helps to improve the adsorption effect.

[0060] Understandably, as the gas stove is used, grease and grime easily accumulate on the panel 30. To ensure the effective adsorption between the sealing part 12, the water tray 20, and the panel 30, such as... Figure 7 As shown, the cone angle α of the first adsorption pore 121a is greater than the cone angle β of the second adsorption pore 121b.

[0061] Since the surface of the water receiving tray 20 is flat, smooth, and not easily deformed, it can be considered an ideal plane. When the first adsorption hole 121a adsorbs onto the water receiving tray 20, according to Hertzian contact theory, the adsorption force is mainly determined by the material properties of the sealing ring 10 and the adsorption area. By designing a larger cone angle α for the first adsorption hole 121a, it is beneficial to increase the effective adsorption area between a single first adsorption hole 121a and the water receiving tray 20, which is beneficial to improving the adsorption effect between the sealing part 12 and the water receiving tray 20.

[0062] Optionally, the drip tray 20 is made of metal. Metal has good heat resistance, which can meet the requirements of high-temperature working environments and avoid deformation due to heat; and metal has high strength, which can prevent damage from impacts.

[0063] Oil stains easily adhere to the panel 30. When the second adsorption hole 121b engages with the panel 30, the oil stains surround the edge of the second adsorption hole 121b at the contact point with the panel 30, forming a tiny, curved liquid bridge, like a small liquid bridge connecting the two surfaces. The formation of the liquid bridge introduces strong capillary forces. Due to the existence of liquid surface tension, there is a pressure difference between the inside and outside of any curved liquid surface; this is the Laplace pressure difference. Under the action of the Laplace pressure difference, the two surfaces connected by the liquid bridge are tightly adsorbed together. At this time, the adsorption force is mainly determined by the properties of the liquid (such as surface tension) and the geometry of the liquid bridge (such as the radius of curvature), and its strength is usually much greater than the van der Waals force under dry contact. Therefore, designing a smaller cone angle β of the second adsorption hole 121b is beneficial to reducing the radius of curvature of the liquid bridge, thereby increasing the absolute value of the Laplace pressure difference and enhancing the capillary adsorption force generated by the Laplace pressure difference.

[0064] Optionally, the cone angle α of the first adsorption pore 121a can be 55°-65°. Exemplarily, typical but non-limiting values ​​for the cone angle α can be 55°, 56°, 57°, 58°, 59°, 60°, 61°, 62°, 63°, 64°, or 65°. In other embodiments, the specific value of the cone angle α can be adjusted according to actual needs, and can be within the above-mentioned range or other ranges can be selected.

[0065] Optionally, the cone angle β of the second adsorption pore 121b can be 25°-35°. Exemplarily, typical but non-limiting values ​​for the cone angle β can be 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, or 35°. In other embodiments, the specific value of the cone angle β can be adjusted according to actual needs, and can be within the above-mentioned range or other ranges can be selected.

[0066] like Figure 8 and Figure 9 As shown, to improve the adsorption effect between the sealing part 12 and the water receiving tray 20, the sealing part 12 is provided with a plurality of first adsorption holes 121a, which are arranged in a circular array along the radial direction of the sealing part 12. Specifically, the plurality of first adsorption holes 121a are divided into a plurality of hole groups, each hole group including a plurality of first adsorption holes 121a spaced apart along the circumference of the sealing part 12, and the plurality of hole groups are arranged at intervals along the radial direction of the sealing part 12. The plurality of first adsorption holes 121a arranged in the above manner can make the plurality of first adsorption holes 121a evenly distributed on the surface of the sealing part 12 facing the water receiving tray 20, thereby increasing the effective adsorption area between the sealing part 12 and the water receiving tray 20 and improving the anti-movement effect.

[0067] Similarly, multiple second adsorption holes 121b are arranged in a circular array along the radial direction of the sealing part 12, so that the second adsorption holes 121b are evenly distributed on the side surface of the sealing part 12 facing the panel 30, which can increase the effective adsorption area between the sealing part 12 and the panel 30, thereby improving the anti-movement effect.

[0068] In some other embodiments, the number and distribution of the adsorption pores 121 can be adjusted according to actual needs, and no limitation is made here.

[0069] To improve the anti-movement and waterproofing effects, the distribution density of the adsorption holes 121 can gradually decrease from the inside to the outside along the radial direction of the sealing part 12. That is, the distribution density of the adsorption holes 121 at the end of the sealing part 12 closer to the center of the annular body 11 is larger, while the distribution density of the adsorption holes 121 at the end of the sealing part 12 farther from the center of the annular body 11 is smaller. The end of the sealing part 12 closer to the annular body 11 is connected to the annular body 11, providing better strength. Increasing the distribution density of the adsorption holes 121 in this part ensures the strength of this portion of the sealing part 12, avoiding situations where the strength is insufficient due to excessive open area. The larger distribution density of the adsorption holes 121 results in better adsorption with the water receiving tray 20 and the panel 30, which is beneficial for improving the anti-movement and waterproofing sealing effects. The end of the sealing part 12 farther from the annular body 11 is a free end, and the smaller distribution density of the adsorption holes 121 in this part helps to ensure strength and prevent damage from compression or external forces.

[0070] In some other embodiments, the adsorption holes 121 on the sealing part 12 can be evenly distributed, that is, the distribution density of the adsorption holes 121 remains unchanged along the radial direction of the sealing part 12, so as to uniformly achieve the adsorption effect at each position of the sealing part 12.

[0071] In some embodiments, in two adjacent groups of holes, the opening area of ​​the adsorption holes 121 gradually increases from the inside to the outside along the radial direction of the sealing portion 12. That is, along the radial direction of the sealing portion 12, the opening of the adsorption holes 121 closer to the center of the annular body 11 is smaller. This arrangement can increase the number of adsorption holes 121 at the end of the sealing portion 12 closest to the center of the annular body 11, thereby increasing the distribution density of the adsorption holes 121 at that end, which is beneficial to increasing the adsorption area and improving the adsorption effect.

[0072] In some other embodiments, the opening area of ​​the adsorption pores 121 can be uniform or other variations can be used, which can be adjusted according to actual needs.

[0073] To ensure that the gas inside the adsorption hole 121 can be smoothly discharged when the sealing part 12 is compressed, a pressure relief groove 122 is provided on the side surface of the sealing part 12 where the adsorption hole 121 is located. The pressure relief groove 122 is formed by an indentation in the side surface where the sealing part 12 is located, and the adsorption hole 121 communicates with the pressure relief groove 122. When the sealing part 12 is compressed by the water receiving tray 20 and the panel 30, the airflow inside the adsorption hole 121 is discharged through the pressure relief groove 122 to facilitate the formation of a negative pressure environment inside the adsorption hole 121. In addition, the pressure relief groove 122 also provides space for the deformation of the sealing part 12, making it easier for the sealing part 12 to deform after being compressed, so as to squeeze out the gas inside the adsorption hole 121 and complete the adsorption.

[0074] In this embodiment, pressure relief grooves 122 are provided on both the side surface of the sealing part 12 facing the water receiving tray 20 and the side surface facing the panel 30, so as to provide a pressure relief environment for the adsorption holes 121 on both sides. For ease of description, the pressure relief groove 122 located on the same side surface as the first adsorption hole 121a is called the first pressure relief groove 122a, and the first adsorption hole 121a is connected to the first pressure relief groove 122a; the pressure relief groove 122 located on the same side surface as the second adsorption hole 121b is called the second pressure relief groove 122b, and the second adsorption hole 121b is connected to the second pressure relief groove 122b.

[0075] In this embodiment, each adsorption hole 121 is connected to at least one pressure relief groove 122 to ensure that when the sealing part 12 is squeezed and deformed, the gas in each adsorption hole 121 can move into the pressure relief groove 122 connected to it, so as to facilitate the gas discharge and form a vacuum adsorption effect.

[0076] To ensure that each adsorption hole 121 can communicate with at least one pressure relief groove 122, the pressure relief groove 122 is an annular groove extending circumferentially along the sealing part 12, so that the adsorption hole 121 at any position along the circumference of the sealing part 12 can communicate with at least one pressure relief groove 122.

[0077] In this embodiment, multiple adsorption holes 121 are arranged in a circular array. Multiple adsorption holes 121 located on the same circular trajectory form a hole group. A pressure relief groove 122 is provided between any two adjacent hole groups to facilitate communication between the adsorption holes 121 and the pressure relief groove 122.

[0078] To avoid the pressure relief groove 122 affecting the setting of the adsorption hole 121, the cross-sectional area of ​​the pressure relief groove 122 gradually increases from the outside to the inside along the depth direction of the pressure relief groove 122. In this embodiment, the changing trend of the cross-sectional area of ​​the pressure relief groove 122 is exactly opposite to the changing trend of the cross-sectional area of ​​the adsorption hole 121. This allows for sufficient space to be reserved on the surface of the sealing part 12 for the opening of the adsorption hole 121, while making full use of the space inside the sealing part 12 to increase the total volume of the pressure relief groove 122, which is beneficial to reducing the elastic resistance when the sealing part 12 deforms.

[0079] Optionally, the pressure relief groove 122 can be a trapezoidal groove, with an opening formed at the top bottom of the trapezoidal groove.

[0080] Optionally, the sidewall of the pressure relief groove 122 can be parallel to the sidewall of its adjacent adsorption hole 121 to make full use of space and improve the compactness of the arrangement of the pressure relief groove 122 and the adsorption hole 121.

[0081] like Figure 7 As shown, an air passage 123 communicating with a pressure relief groove 122 is provided on the side wall of the adsorption hole 121. The air passage 123 connects the adsorption hole 121 and the pressure relief groove 122. To facilitate the rapid discharge of gas from the adsorption hole 121 to the pressure relief groove 122, the flow area of ​​at least one end of the air passage 123 connected to the adsorption hole 121 gradually decreases from the adsorption hole 121 towards the pressure relief groove 122. This arrangement makes the end of the air passage 123 connected to the adsorption hole 121 outwardly flared, with a larger flow area, which is beneficial for the gas in the adsorption hole 121 to quickly enter the air passage 123 during the compression of the sealing part 12, so as to exhaust gas to the pressure relief groove 122.

[0082] In this embodiment, the air passage 123 includes a transition section communicating with the adsorption hole 121 and a constant-diameter section communicating with the pressure relief groove 122. The flow area of ​​the transition section gradually decreases along the direction close to the constant-diameter section, while the flow area of ​​the constant-diameter section remains constant along its length. In other embodiments, the flow area of ​​the air passage 123 may be uniformly gradual or divided into multiple unequal segments. The specific configuration can be determined according to actual needs and is not limited here.

[0083] To prevent the gas in the pressure relief groove 122 from flowing back into the adsorption hole 121 and affecting the adsorption effect, the gas passage 123 is provided with an anti-backflow structure. The anti-backflow structure allows the gas in the adsorption hole 121 to flow to the pressure relief groove 122 and prevents the gas in the pressure relief groove 122 from flowing back into the adsorption hole 121, thereby ensuring the adsorption effect.

[0084] In this embodiment, the anti-backflow structure includes at least two elastic sealing members 124. The elastic sealing members 124 are connected to one end of the pressure relief groove 122 of the air passage 123. The at least two elastic sealing members 124 can close the air passage 123 under their own elastic force, and can open the air passage 123 under the action of the airflow flowing from the adsorption hole 121 to the pressure relief groove 122. In other words, when the elastic sealing member 124 is not subjected to external airflow force, its own elastic force tends to drive the elastic sealing member 124 to close the air passage 123, making the air passage 123 disconnected from the pressure relief groove 122 and preventing the gas in the pressure relief groove 122 from flowing back to the adsorption hole 121 through the air passage 123; when the gas in the adsorption hole 121 enters the air passage 123, the airflow in the air passage 123 acts on the elastic sealing member 124, which can make the elastic sealing member 124 overcome its own elastic force and deform, thereby opening the air passage 123 and allowing the airflow in the air passage 123 to enter the pressure relief groove 122 to achieve pressure relief.

[0085] Optionally, the elastic sealing element 124 is made of an elastic material, so that the elastic sealing element 124 itself is elastic and can deform under the action of airflow to open the airway 123.

[0086] When the sealing part 12 is compressed, the gas in the adsorption hole 121 flows into the air passage 123. The gas first passes through the transition section of the air passage 123, which has a large opening area, facilitating the smooth entry and rapid discharge of the gas into the air passage 123. Then, the gas acts on the elastic sealing member 124, and the airflow pushes the elastic sealing member 124 to deform and open the air passage 123, allowing the gas to smoothly enter the pressure relief groove 122. The airflow in the adsorption hole 121 decreases, forming a negative pressure, thereby forming an adsorption state with the panel 30 and the water receiving tray 20. As the gas in the air passage 123 is discharged, the air pressure in the air passage 123 is lower than the air pressure in the pressure relief groove 122, causing the elastic sealing member 124 to reset and close the air passage 123 under the action of the pressure difference, preventing the gas in the pressure relief groove 122 from flowing back into the adsorption hole 121, thus achieving zero gas backflow.

[0087] In some other embodiments, the anti-backflow structure can be a backflow preventer.

[0088] Optionally, the air passage 123 can be perpendicular to the sidewall of the adsorption hole 121, which helps to improve the smoothness of gas flow and thus facilitates the rapid discharge of gas.

[0089] The gas stove in this embodiment uses the aforementioned sealing ring 10, which can form a vacuum adsorption through compression and block the backflow of gas, thereby multiplying the static friction between the water tray 20, the sealing ring 10 and the panel 30, solving the problem of the panel 30 of the stove slipping under the action of external force, and further improving the waterproof and oil-repellent effect of the sealing ring 10, improving the internal corrosion resistance of the stove, and thus improving the service life of the gas stove.

[0090] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A sealing ring for a gas stove, the gas stove comprising a panel (30) and a drip tray (20), the drip tray (20) being stacked on the panel (30), characterized in that, The sealing ring includes an annular sealing part (12), which can be clamped between the water receiving tray (20) and the panel (30). The sealing part (12) has a plurality of adsorption holes (121) on the side surface of the sealing part (12) facing the water receiving tray (20) and / or the side surface of the sealing part (12) facing the panel (30).

2. The sealing ring according to claim 1, characterized in that, The cross-sectional area of ​​the adsorption pore (121) gradually decreases from the outside to the inside along the depth direction of the adsorption pore (121).

3. The sealing ring according to claim 2, characterized in that, The adsorption hole (121) is a conical hole, and the cone angle of the adsorption hole (121) on the side surface of the sealing part (12) facing the water receiving tray (20) is greater than the cone angle of the adsorption hole (121) on the side surface of the sealing part (12) facing the panel (30).

4. The sealing ring according to claim 3, characterized in that, The cone angle of the adsorption hole (121) on the surface of the sealing part (12) facing the water receiving tray (20) is 55°-65°; And / or, the cone angle of the adsorption hole (121) on the side surface of the sealing part (12) facing the panel (30) is 25°-35°.

5. The sealing ring according to any one of claims 1-4, characterized in that, The plurality of adsorption holes (121) are arranged in a circular array along the radial direction of the sealing part (12), and the distribution density of the plurality of adsorption holes (121) gradually decreases from the inside to the outside along the radial direction of the sealing part (12). And / or, the opening area of ​​the plurality of adsorption holes (121) gradually increases from the inside to the outside along the radial direction of the sealing part (12).

6. The sealing ring according to any one of claims 1-4, characterized in that, A pressure relief groove (122) is provided on one side surface of the sealing part (12) where the adsorption hole (121) is provided. The pressure relief groove (122) extends circumferentially along the sealing part (12), and each adsorption hole (121) is connected to at least one pressure relief groove (122).

7. The sealing ring according to claim 6, characterized in that, The cross-sectional area of ​​the pressure relief groove (122) gradually increases from the outside to the inside along the depth direction of the pressure relief groove (122); And / or, the sidewall of the adsorption hole (121) is provided with an air passage (123) that communicates with the pressure relief groove (122), and the air passage (123) is provided with an anti-backflow structure, which can prevent the gas in the pressure relief groove (122) from flowing to the adsorption hole (121).

8. The sealing ring according to claim 7, characterized in that, The anti-backflow structure is a backflow preventer, or the anti-backflow structure includes an elastic sealing element (124), which can close the air passage (123) under its own elastic force, and can open the air passage (123) under the action of the airflow flowing from the adsorption hole (121) to the pressure relief groove (122) in the air passage (123). And / or, the flow area of ​​at least one end of the air passage (123) connected to the adsorption hole (121) gradually decreases from the adsorption hole (121) toward the pressure relief groove (122).

9. The sealing ring according to any one of claims 1-4, characterized in that, The sealing ring also includes an annular body (11), which is connected to the sealing part (12) and extends along the axial direction of the sealing part (12). The panel (30) is provided with a mounting hole (31), and the annular body (11) is interference-fitted into the mounting hole (31).

10. A gas stove, characterized in that, include: Panel (30), wherein mounting holes (31) are provided on the panel (30); The top end of the burner head (40) passes through the mounting hole (31); A water tray (20) is stacked on the panel (30) and arranged around the mounting hole (31); The sealing ring (10) as described in any one of claims 1-9, wherein the sealing part (12) is disposed around the mounting hole (31) and clamped between the water receiving tray (20) and the panel (30).

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