Cover structure of cooking device and cooking device

Abstract

The present invention relates to the technical field of cooking devices, and more particularly to a cover structure of a cooking device and a cooking device, the cover structure comprising: a steel cover having an exhaust pipe assembly therethrough; a temperature sensor having a mounting hole thereon for mounting the temperature sensor; a sealing member limitedly mounted in the mounting hole, a through hole being provided in the middle of the sealing member for the temperature measuring end of the temperature sensor to pass through, and an interference fit between the temperature sensor and the through hole; a pressure plate pressing against the temperature sensor and extending to the exhaust pipe assembly, the pressure plate being used to limit the displacement of the temperature sensor, and the pressure plate being fixed to the steel cover by the exhaust pipe assembly to achieve tight compression of the temperature sensor. The temperature sensor provided by the present invention can significantly reduce the number of mounting parts of the temperature sensor by adopting the above-mentioned installation method, reduce the difficulty of assembling the temperature sensor, improve the assembly efficiency and reliability of the entire cover structure, and reduce the incidence of defective products.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking devices, and in particular to a cover structure of a cooking device and the cooking device. Background Art

[0002] In order to detect the temperature information inside the cooking device, the existing cooking device usually sets a temperature sensor on the top cover structure of the cooking device. The existing temperature sensor is usually provided with threads and fixed to the steel cover by means of threaded nuts and gaskets. A sealing ring is also provided between the gasket and the steel cover to ensure the sealing effect. Therefore, the temperature sensor has many installation parts and the installation process is cumbersome, which affects the assembly and production efficiency of the cooking device. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the temperature sensing component on the top cover structure of the cooking device has many installation parts and the installation process is cumbersome, which affects the assembly and production efficiency of the cooking device, thereby providing a cover structure of the cooking device and a cooking device.

[0004] In order to solve the above problems, in a first aspect, the present invention provides a cover structure of a cooking device, comprising: a steel cover, on which an exhaust pipe assembly is passed; a temperature sensing component, wherein the steel cover is provided with a mounting hole for installing the temperature sensing component; a sealing component, which is limitedly installed in the mounting hole, and a through hole is provided in the middle of the sealing component for the temperature measuring end of the temperature sensing component to pass through, and the temperature sensing component and the through hole are interference fit; a pressure plate, which presses above the temperature sensing component and extends to the position of the exhaust pipe assembly, the pressure plate is used to limit the displacement of the temperature sensing component, and the pressure plate is fixed to the steel cover by the exhaust pipe assembly to achieve tight pressing of the temperature sensing component.

[0005] Optionally, the exhaust pipe assembly includes an exhaust pipe and a locking member;

[0006] The lower end of the exhaust pipe passes through the pressure plate and the steel cover in sequence and is locked and fixed by the locking member, and a stopper for limiting the upward displacement of the pressure plate is also provided above the exhaust pipe.

[0007] Optionally, the retaining portion is an annular protrusion fixedly provided on the outer peripheral wall of the exhaust pipe, and the lower end surface of the annular protrusion is in abutting cooperation with the upper end surface of the pressure plate to limit the upward displacement of the pressure plate.

[0008] Optionally, the exhaust pipe assembly further includes a gasket disposed between the blocking portion and the pressure plate.

[0009] Optionally, an external thread is provided on the peripheral wall of the exhaust pipe, and the locking member is a nut.

[0010] Optionally, the sealing member includes an annular sealing body, and an annular assembly groove suitable for snap-fitting with the mounting hole is provided on the outer periphery of the sealing body;

[0011] The sealing body further comprises a sealing lip portion located above the annular assembly groove and a tapered guide portion located below the annular assembly groove.

[0012] Optionally, the sealing lip portion includes a first sealing lip arranged horizontally and a second sealing lip formed by bending and extending the outer periphery of the first sealing lip in a direction close to the steel cover.

[0013] Optionally, the maximum outer diameter of the sealing lip is set to d1, the inner diameter of the annular assembly groove is set to d2, the maximum outer diameter of the tapered guide portion is set to d3, and the inner diameter of the mounting hole is set to a;

[0014] Among them, d1 and d3 are both greater than d2, and 1.1a≤d1≤2a, 0.8a≤d2≤1.5a, and 1.1a≤d3≤2a.

[0015] Optionally, the temperature sensing component includes a temperature sensing probe, a fixing plate and a lead wire, wherein the temperature sensing probe is suitable for passing through the through hole, the outer diameter of the temperature sensing probe is set to b, the inner diameter of the through hole is set to d4, 0.5b≤d4≤b; the temperature sensing probe is fixedly arranged on the fixing plate, and the pressure plate has a pressing portion suitable for pressing against the top of the fixing plate; the lead wire is connected to the temperature sensing probe, and the pressure plate is provided with a wire hole for the lead wire to pass through.

[0016] In a second aspect, the present invention provides a cooking device comprising the above-mentioned cover structure of the cooking device.

[0017] The present invention has the following advantages:

[0018] 1. The cover structure of the cooking device provided by the present invention adopts a screw-free and nut-free method to install the temperature sensor. Specifically, a sealing member is provided on the mounting hole of the steel cover, and a through hole is provided in the middle of the sealing member for the temperature measuring end of the temperature sensor to pass through. The temperature sensor can directly pass through the sealing member and extend into the cooking device. In addition, since there is an interference fit between the temperature sensor and the through hole, the sealing between the two can be achieved by the clamping force between the sealing member and the temperature sensor.

[0019] Furthermore, a pressure plate positioned above the temperature sensor compresses the temperature sensor, which, in conjunction with the sealing element, secures the temperature sensor. This significantly reduces the number of components required for the temperature sensor, easing assembly difficulty, improving assembly efficiency and reliability of the entire cover structure, and reducing the incidence of defective products. Furthermore, the exhaust pipe assembly connects the steel cover and the pressure plate, allowing the exhaust pipe assembly to simultaneously perform the exhaust operation and secure the pressure plate, effectively reducing the number of components required for temperature sensor assembly.

[0020] 2. The cover structure of the cooking device provided by the present invention, the exhaust pipe assembly includes an exhaust pipe and a locking piece, the lower end of the exhaust pipe passes through the pressure plate and the steel cover in sequence, and is locked and fixed by the locking piece, and a stopper is provided above the exhaust pipe for limiting the upward displacement of the pressure plate. With this design, the upper end of the exhaust pipe is pressed on the pressure plate by the stopper, and the lower end passes through the pressure plate and the steel cover and is screwed and fixed by the locking piece, so that the pressure plate can be stably and reliably fixed to the steel cover without the need for screw connection, which can further simplify the number of parts.

[0021] 3. In the cover structure of the cooking device provided by the present invention, the seal adopts the design of an annular assembly groove, which can realize the seal being snap-fitted and embedded in the mounting hole, making it difficult for the seal to fall off. In addition, the sealing lip adopts the design of a first sealing lip and a second sealing lip. When the seal is squeezed by the pressure plate, the bottom of the second sealing lip will be axially compressed, and the deformation will increase the contact area with the steel cover. At the same time, the contact stress is increased, the sealing performance is reliable, and the sealing effect is further improved.

[0022] 4. The cover structure of the cooking device provided by the present invention has a tapered guide portion, which facilitates the insertion of the seal into the mounting hole of the steel cover, thereby improving the assembly efficiency of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of the cover structure in the embodiment is shown;

[0025] Figure 2 Shown Figure 1 Schematic diagram of the back structure of the middle cover structure;

[0026] Figure 3 Shown Figure 1 A partial cross-sectional view of the mating portion between the temperature sensing element and the steel cover of the middle cover structure;

[0027] Figure 4 A partial cross-sectional view of the exhaust pipe assembly and the pressure plate of the cover structure in the embodiment is shown;

[0028] Figure 5 shows a schematic structural diagram of a seal;

[0029] Figure 6 Shows a schematic structural diagram of the temperature sensing element;

[0030] Description of reference numerals:

[0031] 1. Steel cover;

[0032] 2. Temperature sensing element; 21. Temperature sensing probe; 22. Fixing plate; 23. Vertical baffle;

[0033] 3. Sealing member; 30. Through hole; 31. Annular assembly groove; 32. Sealing lip; 321. First sealing lip; 322. Second sealing lip; 33. Conical guide portion;

[0034] 4. Press plate;

[0035] 5. Exhaust pipe assembly; 51. Exhaust pipe; 511. Stopper; 52. Locking piece; 53. Gasket; 54. O-ring;

[0036] 6. Cover. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] like Figures 1 to 6 As shown, this embodiment provides a cover structure of a cooking device, comprising: a steel cover 1, a temperature sensing element 2, a sealing element 3, and a pressing plate 4, wherein:

[0043] An exhaust pipe assembly 5 is provided on the steel cover 1 , and a mounting hole for mounting the temperature sensing element 2 is provided on the steel cover 1 . The temperature sensing element 2 can pass through the steel cover 1 to detect the temperature in the cooking cavity.

[0044] The seal 3 is fixedly mounted within the mounting hole. A through-hole 30 is provided in the center of the seal 3 for the temperature-sensing end of the temperature-sensing element 2 to pass through. The temperature-sensing element 2 and the through-hole 30 have an interference fit. This design allows the temperature-sensing element 2 to pass directly through the seal 3. Furthermore, the interference fit between the temperature-sensing element 2 and the through-hole 30 ensures a seal between the two elements.

[0045] The pressure plate 4 is pressed against the temperature sensing part 2 and extends to the position of the exhaust pipe assembly 5. The lower end of the exhaust pipe assembly 5 passes through the pressure plate 4 and the steel cover 1 in sequence. The pressure plate 4 is used to limit the displacement of the temperature sensing part 2, and the pressure plate 4 is fixed on the steel cover 1 through the exhaust pipe assembly 5 to achieve tight compression of the temperature sensing part 2.

[0046] In this embodiment, the pressure plate 4 is fixed to the steel cover 1 through the exhaust pipe assembly 5. In order to achieve the above-mentioned operation, the pressure plate 4 itself extends to the position of the exhaust pipe assembly 5, and corresponding through holes are set at the corresponding positions of the steel cover 1 and the pressure plate 4. The exhaust pipe assembly 5 is passed through the through holes. While completing the exhaust operation, the exhaust pipe assembly 5 can also complete the fixation of the pressure plate 4, thereby effectively reducing the number of parts of the temperature sensing component 2 during assembly.

[0047] In the prior art, to secure the pressure plate 4, screws are typically inserted directly into the pressure plate 4 and then secured to the steel cover 1. While this arrangement also improves the stability of the pressure plate 4 connection, it still involves the use of additional screws and holes in the steel cover 1, which can easily lead to problems such as air leakage and rust at the screw locations. Compared to conventional screw connections, this can further simplify the cover structure, reduce the number of installed parts, and improve the assembly efficiency of the cover structure.

[0048] The cover structure provided in this embodiment can realize the installation of the temperature sensing element 2 in a screw-free and nut-free manner. The temperature sensing element 2 is pressed from above by a pressure plate 4 arranged above the temperature sensing element 2, and the sealing element 3 holds and fixes the temperature sensing element 2 in the circumferential direction. The pressure plate 4 and the sealing element 3 cooperate with each other to fix the temperature sensing element 2, thereby greatly reducing the number of installation parts of the temperature sensing element 2, reducing the difficulty of assembling the temperature sensing element 2, improving the assembly efficiency and reliability of the entire cover structure, and reducing the incidence of defective products.

[0049] It should be noted that, in this embodiment, the temperature sensing element 2 is also called a temperature sensing package.

[0050] Optionally, the exhaust pipe assembly 5 includes an exhaust pipe 51 and a locking member 52; the lower end of the exhaust pipe 51 sequentially passes through the pressure plate 4 and the steel cover 1 and is locked and fixed by the locking member 52. A stopper 511 is also provided above the exhaust pipe 51 to limit the upward displacement of the pressure plate 4. During assembly, when the lower end of the exhaust pipe 51 passes through the pressure plate 4 and the steel cover 1, the stopper 511 abuts against the upper side of the pressure plate 4, while the lower side is adapted to be locked and fixed by the locking member 52, stably fixing the pressure plate 4 to the steel cover 1, thereby applying a stable and reliable pressure to the temperature sensing element 2.

[0051] In the cover structure of the cooking device provided in this embodiment, the upper end of the exhaust pipe 51 is pressed against the pressure plate 4 by a stopper 511, while the lower end passes through the pressure plate 4 and the steel cover 1 and is screwed in place by a locking member 52. This ensures that the pressure plate 4 is stably and reliably fixed to the steel cover 1 without the need for screws, further simplifying the number of parts. The exhaust pipe assembly 5 connects the steel cover 1 and the pressure plate 4, allowing the exhaust pipe assembly 5 to simultaneously perform the exhaust operation and secure the pressure plate 4, thereby effectively reducing the number of parts required for assembling the temperature sensor 2.

[0052] Optionally, the stopper 511 is an annular protrusion fixedly mounted on the outer peripheral wall of the exhaust pipe 51, with the lower end surface of the annular protrusion engaging with the upper end surface of the pressure plate 4 to limit the upward displacement of the pressure plate 4. Optionally, the lower end surface of the annular protrusion is a horizontally disposed plane, and the annular protrusion is integrally formed with the exhaust pipe 51.

[0053] Of course, in other embodiments, the blocking portion 511 may also be a local protrusion fixedly provided on the outer peripheral wall of the exhaust pipe 51 or a plurality of protrusions spaced apart along the circumferential direction.

[0054] Optionally, the exhaust pipe assembly 5 further includes a gasket 53 disposed between the resisting portion 511 and the pressure plate 4. The gasket 53 can reduce frictional damage between the resisting portion 511 and the pressure plate 4, and can also reduce or eliminate the clearance between the resisting portion 511 and the pressure plate 4, making the fit between the two more stable and reliable and less likely to loosen. Furthermore, the gasket 53 is made of rubber and can also provide a certain sealing effect.

[0055] Optionally, the gasket 53 is annular, and the exhaust pipe 51 is pressed on the pressure plate 4 through the annular gasket 53.

[0056] Optionally, in this embodiment, an external thread is provided on the peripheral wall of the exhaust pipe 51 , and the locking member 52 is a nut, and the nut is threadedly matched with the exhaust pipe 51 to screw the pressure plate 4 onto the steel cover 1 .

[0057] Preferably, in this embodiment, an external thread is only provided on the peripheral wall of the lower end of the exhaust pipe 51, and there is no need to provide a threaded structure on the peripheral wall of the entire exhaust pipe 51. It is sufficient as long as the length of the exhaust pipe 51 with threads can be ensured to allow the nut to tighten and fix the pressure plate 4, thereby reducing processing costs.

[0058] Preferably, in this embodiment, the steel cover 1 is provided with an opening for the exhaust pipe 51 to pass through, and a sealing ring mounting portion is fixedly provided on the bottom wall of the steel cover 1 at a position corresponding to the opening, and an annular sealing ring mounting groove is provided on the inner periphery of the sealing ring mounting portion, and an O-ring 54 is provided in the sealing ring mounting groove, and the gap between the steel cover 1 and the exhaust pipe 51 is sealed by the provided O-ring 54.

[0059] Optionally, in this embodiment, the seal 3 includes an annular sealing body having an annular assembly groove 31 disposed on its outer periphery for snap-fitting with the mounting hole. In this embodiment, the annular assembly groove 31 allows the seal 3 to be snap-fitted and embedded within the mounting hole, making it difficult for the seal 3 to fall out.

[0060] Optionally, in this embodiment, the sealing member 3 is a sealing ring structure made of rubber material.

[0061] Further, combined with Figure 1 、 Figure 3 and Figure 5As shown, the sealing body further includes a sealing lip 32 located above the annular assembly groove 31 and a tapered guide portion 33 located below the annular assembly groove 31. The sealing lip 32 and the tapered guide portion 33 are both protruding outward, and the maximum outer diameters of the sealing lip 32 and the tapered guide portion 33 are larger than the inner diameter of the mounting hole, so that the sealing member 3 can be snap-fitted and positioned on the mounting hole. The design of the tapered guide portion 33 also facilitates the insertion of the sealing member 3 into the mounting hole of the steel cover 1, thereby improving the assembly efficiency of the sealing member 3.

[0062] Optionally, the sealing lip 32 includes a horizontally arranged first sealing lip 321 and a second sealing lip 322 formed by bending and extending the outer periphery of the first sealing lip 321 toward the steel cover 1. By adopting the design of the first sealing lip 321 and the second sealing lip 322, when the sealing member 3 is squeezed by the pressure plate 4, the bottom of the second sealing lip 322 is subjected to axial compression, deforming to increase the contact surface with the steel cover 1, and increasing the contact stress, thereby ensuring reliable sealing performance and further improving the sealing effect.

[0063] Optionally, the maximum outer diameter of the sealing lip 32 is set to d1, the inner diameter of the annular assembly groove 31 is set to d2, the maximum outer diameter of the tapered guide portion 33 is set to d3, and the inner diameter of the mounting hole is set to a; wherein d1 and d3 are both greater than d2, and 1.1a≤d1≤2a, 0.8a≤d2≤1.5a, and 1.1a≤d3≤2a.

[0064] In the above solution, the design in which both d1 and d3 are greater than d2 effectively ensures that the seal 3 is not easily removed from the mounting hole of the steel cover 1. The design of 1.1a≤d1≤2a, 1.1a≤d3≤2a, and 0.8a≤d2≤1.5a effectively ensures a seal between the seal 3 and the steel cover 1 while ensuring that the seal 3 does not fall out of the mounting hole.

[0065] Furthermore, the tapered guide portion 33 is a frustum-shaped structure with an outer diameter gradually decreasing from top to bottom. The minimum outer diameter of the tapered guide portion 33 is smaller than the inner diameter of the mounting hole, thereby enabling the seal 3 to be quickly and accurately inserted into the mounting hole.

[0066] Optionally, the temperature sensing component 2 includes a temperature sensing probe 21, a fixing plate 22 and a lead, wherein the temperature sensing probe 21 is suitable for passing through the through hole 30, and the outer diameter of the temperature sensing probe 21 is set to b, the inner diameter of the through hole 30 is set to d4, and 0.5b≤d4≤b; by adopting the above-mentioned size design, the temperature sensing probe 21 can be interference fit with the through hole 30 of the sealing component 3, thereby ensuring the seal between the sealing ring and the temperature sensing component 2.

[0067] Alternatively, as Figure 3 and Figure 6As shown, the temperature sensing component 2 also includes a vertical baffle 23 fixed or integrally formed on one side of the fixed plate 22. The vertical baffle 23 is fixedly arranged above the fixed plate 22. The vertical baffle 23 can cooperate with the pressure plate 4 to play a positioning role on the one hand, and can also serve as a handle to facilitate the installation of the temperature sensing component 2 on the other hand.

[0068] Optionally, the temperature sensing probe 21 is fixedly arranged on the fixing plate 22, and the pressure plate 4 has a pressing portion suitable for pressing against the top of the fixing plate 22, wherein the pressure plate 4 presses against the upper surface of the fixing plate 22, and the lower surface of the fixing plate 22 is suitable for pressing against the upper end surface of the sealing member 3; the lead wire is connected to the temperature sensing probe 21, and the pressure plate 4 is provided with a wire hole for the lead wire to pass through.

[0069] Optionally, the pressing plate 4 further includes a connecting portion arranged in a stepped manner with the pressing portion, with a limiting step formed between the connecting portion and the pressing portion. When installing the temperature sensing element 2, the end of the fixing plate 22 away from the vertical baffle 23 extends below the pressing plate 4 and abuts against the limiting step, while the vertical baffle 23 stops and engages with the other side edge of the pressing plate 4. In this way, the fixing plate 22 and the pressing plate 4 can be positioned horizontally, thereby improving the assembly efficiency of the entire cover structure.

[0070] Optionally, the cover structure further includes an upper cover 6 arranged above the steel cover 1 , and the pressing plate 4 is arranged below the upper cover 6 .

[0071] The specific assembly and principle of the cover structure provided in this embodiment are as follows:

[0072] In this embodiment, an annular assembly groove 31 is provided in the middle of the seal 3, which divides the seal 3 into three parts: upper, middle and lower. The upper part is the sealing lip 32, the lower part is the conical guide part 33, and the middle part between the sealing lip 32 and the conical guide part 33 is the annular assembly groove 31. The conical guide part 33 at the bottom of the seal 3 is provided with a conical inclination angle, which facilitates the insertion of the seal 3 into the steel cover 1. During assembly, the seal 3 is first inserted into the mounting hole on the steel cover 1. When the assembly is completed, the sealing lip 32 and the conical guide part 33 of the seal 3 are located on the upper and lower sides of the steel cover 1. The temperature sensing probe 21 of the temperature sensing part 2 is inserted into the through hole 30 in the center of the seal 3, and extends from it into the inner side of the steel cover 1. After installation, the lower surface of the fixing plate 22 of the temperature sensing part 2 is close to the top of the seal 3. The pressing part on the pressure plate 4 contacts the upper surface of the fixed plate 22 of the temperature sensing element 2, pressing the temperature sensing element 2 against the sealing element 3, limiting the displacement of the temperature sensing element 2 away from the steel cover 1, and a wire hole is provided on the pressure plate 4 for the lead wire at the tail of the temperature sensing element 2 to pass through.

[0073] The cover structure of the cooking device provided in this embodiment adopts a screw-free and nut-free method to install the temperature sensing element 2. A sealing element 3 is installed on the mounting hole of the steel cover 1. The temperature sensing element 2 is directly inserted into the sealing element 3 and passes through the steel cover 1. The sealing is achieved by the clamping force between the sealing element 3 and the temperature sensing element 2, and the fixing plate 22 of the temperature sensing element 2 is pressed by the pressure plate 4 to fix the temperature sensing element 2, effectively reducing the number of installation parts of the temperature sensing element 2.

[0074] Example 2

[0075] This embodiment provides a cooking device, including the cover structure of the cooking device described above, and a pot.

[0076] Optionally, in this embodiment, the cooking device is a pressure cooker or an electric rice cooker.

[0077] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A cover structure of a cooking device, characterized in that: include: A steel cover (1) having an exhaust pipe assembly (5) passing through it; A temperature sensing element (2), wherein the steel cover (1) is provided with a mounting hole for mounting the temperature sensing element (2); A sealing member (3) is installed in a limited position in the installation hole, a through hole (30) is provided in the middle of the sealing member (3) for the temperature measuring end of the temperature sensing member (2) to pass through, and an interference fit is formed between the temperature sensing member (2) and the through hole (30); A pressure plate (4) is pressed against the temperature sensing element (2) and extends to the position of the exhaust pipe assembly (5). The pressure plate (4) is used to limit the displacement of the temperature sensing element (2). The pressure plate (4) is fixed on the steel cover (1) through the exhaust pipe assembly (5) to achieve tight compression of the temperature sensing element (2). The temperature sensing component (2) comprises a temperature sensing probe (21) and a fixing plate (22), wherein the temperature sensing probe (21) is fixedly arranged on the fixing plate (22), and the pressing plate (4) has a pressing portion suitable for pressing against the fixing plate (22).

2. The cover structure of the cooking device according to claim 1, characterized in that: The exhaust pipe assembly (5) comprises an exhaust pipe (51) and a locking member (52); The lower end of the exhaust pipe (51) passes through the pressing plate (4) and the steel cover (1) in sequence and is locked and fixed by the locking member (52). A stopper (511) for limiting the upward displacement of the pressing plate (4) is also provided above the exhaust pipe (51).

3. The cover structure of the cooking device according to claim 2, characterized in that: The resisting portion (511) is an annular protrusion fixedly arranged on the outer peripheral wall of the exhaust pipe (51), and the lower end surface of the annular protrusion resists and cooperates with the upper end surface of the pressing plate (4) to limit the upward displacement of the pressing plate (4).

4. The cover structure of the cooking device according to claim 2, characterized in that: The exhaust pipe assembly (5) further includes a gasket (53) arranged between the blocking portion (511) and the pressure plate (4).

5. The cover structure of the cooking device according to claim 2, characterized in that: An external thread is provided on the peripheral wall of the exhaust pipe (51), and the locking member (52) is a nut.

6. The cover structure of the cooking device according to any one of claims 1 to 5, characterized in that: The sealing member (3) comprises an annular sealing body, and an annular assembly groove (31) suitable for snap-fitting with the mounting hole is provided on the outer periphery of the sealing body; The sealing body further comprises a sealing lip portion (32) located above the annular assembly groove (31) and a tapered guide portion (33) located below the annular assembly groove (31).

7. The cover structure of the cooking device according to claim 6, characterized in that: The sealing lip portion (32) comprises a first sealing lip (321) arranged horizontally and a second sealing lip (322) formed by bending and extending the outer periphery of the first sealing lip (321) in a direction close to the steel cover (1).

8. The cover structure of the cooking device according to claim 6, characterized in that: The maximum outer diameter of the sealing lip (32) is set to d1, the inner diameter of the annular assembly groove (31) is set to d2, the maximum outer diameter of the tapered guide portion (33) is set to d3, and the inner diameter of the mounting hole is set to a; Among them, d1 and d3 are both greater than d2, and 1.1a≤d1≤2a, 0.8a≤d2≤1.5a, and 1.1a≤d3≤2a.

9. The cover structure of the cooking device according to any one of claims 1 to 5, characterized in that: The temperature sensing element (2) further includes a lead wire, wherein: The temperature sensing probe (21) is suitable for passing through the through hole (30), and the outer diameter of the temperature sensing probe (21) is set to b, the inner diameter of the through hole (30) is set to d4, and 0.5b≤d4≤b; The lead wire is connected to the temperature sensing probe (21), and the pressing plate (4) is provided with a wire hole for the lead wire to pass through.

10. A cooking device, characterized in that: A cover structure comprising the cooking device according to any one of claims 1 to 9.

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