An electric kettle

Abstract

The present invention belongs to the technical field of household appliances, and in particular relates to an electric kettle, comprising a kettle body and a kettle lid, wherein the kettle lid comprises a lid body and a hinged portion hinged to the kettle body, the hinged portion forms a limiting protrusion, and the limiting protrusion forms a first abutting surface; the electric kettle also comprises a button and a spring, the button and the kettle body are hinged around a hinge axis, an abutting protrusion is formed on the side of the button facing the kettle lid, the abutting protrusion has a second abutting surface, and the normal of the second abutting surface faces the hinge axis; the spring pushes the button, the first abutting surface fits and abuts the second abutting surface, and the abutting protrusion stops the kettle lid from rotating in the opening direction. The present invention sets the normal of the second abutting surface to pass through the hinge axis, so that when the kettle lid is subjected to a force in the opening direction, the force transmitted to the button faces the hinge axis, which can effectively prevent the kettle lid from loosening due to the kettle lid pushing the button, is conducive to maintaining the buckling effect of the kettle lid, and effectively solves the problems existing in the prior art.

Description

Technical Field

[0001] The present application belongs to the technical field of household appliances, and in particular relates to an electric kettle. Background Art

[0002] Electric kettles are commonly used household appliances. The lids of electric kettles are often hinged. To facilitate opening, a button is provided inside the electric kettle to open the lid when the button is pressed. For example, the electric kettle disclosed in Patent 2017212388765, as shown in the figure, has a lid with a hinged end hinged to the kettle body. The button is formed with an arc-shaped protrusion. When the lid is buckled onto the kettle body, the protrusion abuts against the hinged end to keep the lid in a buckled state. When the button is pressed, the protrusion squeezes through the hinged end, and the lid opens under the action of the torsion spring. In this type of electric kettle, when the lid is buckled onto the kettle body, the protrusion has limited restrictive effect on the opening of the lid, causing the lid to become loose easily. This is especially true when pouring water, as the lid is impacted by the water flow, which can easily cause the lid to open, leading to turbulent water flow. Alternatively, the opening and closing lid structure of the electric kettle disclosed in publication number CN203088733U, CN206303712U, or CN211432307U generally adopts a point-to-point matching method of an arc surface. This structure is smoother when opening and closing the lid. However, the button is generally set on the handle. When consumers lift the kettle to pour water or move it, it is easy to accidentally trigger the lid opening button, affecting safety of use or spilling water. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an electric kettle. By setting the normal of the second abutting surface to face the hinge axis, when the kettle lid is subjected to a force in the opening direction, the force transmitted to the button is directed toward the hinge axis, which can effectively prevent the kettle lid from loosening due to pushing the button, is conducive to maintaining the fastening effect of the kettle lid, and effectively solves the problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention provides an electric kettle, comprising a kettle body and a kettle lid, wherein the kettle lid comprises a lid body, a hinge part connected to the lid body, the hinge part is hinged to the kettle body, and the hinge part extends away from the lid body to form a limiting protrusion, and the limiting protrusion is formed with a first abutment plane; it also includes a button rotatably connected to the kettle body, and the button is formed with an abutment protrusion on the side facing the kettle lid, and the abutment protrusion is hinged to the kettle body around a hinge axis; the abutment protrusion has a second abutment plane; the normal plane of the fitting area between the second abutment plane and the first abutment plane passes through the hinge axis; when the kettle lid is closed on the kettle body, the second abutment plane supports the first abutment plane, and the abutment protrusion stops the kettle lid from rotating in the opening direction.

[0005] Furthermore, a normal plane of a contact area between the second abutting plane and the first abutting plane passes through the axis of the hinge shaft.

[0006] Furthermore, a center normal plane of a contact area between the second abutting plane and the first abutting plane passes through the hinge axis.

[0007] Furthermore, when the kettle lid is buckled onto the kettle body, the angle between the second abutting plane and the horizontal direction is selected from 0° to 30°.

[0008] Furthermore, two endpoints of the fitting area between the second abutting plane and the first abutting plane are respectively connected to the axis of the hinge shaft to form a first line and a second line, and the angle between the first line and the second line is greater than 5 degrees.

[0009] Furthermore, the width of the hinge axis is greater than the width of the contact area between the second abutting plane and the first abutting plane.

[0010] Furthermore, a groove is formed on the abutting protrusion, and the second abutting plane is arranged in the groove. When the pot lid is closed on the pot body, the limiting protrusion is embedded in the groove, and the hinge shaft is located below the groove.

[0011] Furthermore, the abutment protrusion forms a limiting portion, and the kettle body forms a stop portion. When the kettle lid is closed on the kettle body and the kettle lid is rotated in the opening direction, the limiting protrusion pushes the abutment protrusion to rotate, and the stop portion is located on the rotation path of the limiting portion, and the stop portion stops the button from rotating.

[0012] Furthermore, when the pot lid is closed on the pot body, there is a gap between the limiting portion and the stopping portion, and the width of the gap is greater than 0 mm and less than or equal to 0.2 mm.

[0013] Furthermore, it also includes an elastic member arranged between the kettle body and the button, and the button is formed with a cross rib inserted into the elastic member; or, the abutment protrusion and the button are an integral part; or, the abutment protrusion and the button are separate parts; or, the hinged part is connected to the cover body by a threaded fastener; or, the lower surface of the kettle cover is lower than the first abutment plane; or, the kettle body includes a kettle body and a handle, and the kettle cover and the button are both installed on the handle; the handle includes a handle seat and a handle cover, and the handle cover is provided with a mounting hole, and the button is provided in the mounting hole; or, the kettle body is provided with two damping ribs arranged opposite to each other, and when the kettle cover is rotated in the opening direction, the limiting protrusion rotates between the two damping ribs, and the width between the two damping ribs gradually decreases along the direction in which the limiting protrusion enters, and after the kettle cover is opened, the limiting protrusion abuts against the two damping ribs.

[0014] The beneficial effect of the present invention is that the present invention provides an electric kettle, which, by setting the normal surface of the second abutment plane to face the hinge axis, can transmit the force of the button toward the hinge axis when the kettle lid is subjected to a force in the opening direction, thereby effectively preventing the kettle lid from loosening due to pushing the button, which is conducive to maintaining the fastening effect of the kettle lid and effectively solving the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure after decomposition of the embodiment shown in the figure.

[0018] Figure 3 for Figure 1 A schematic structural diagram of the hinge portion in the illustrated embodiment.

[0019] Figure 4 Schematic diagram of the structure of the hinge part and the button in one embodiment of the present invention.

[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the handle at the damping rib in the embodiment shown.

[0021] Among them, 1. kettle body; 101. kettle body; 102. handle; 2. kettle lid; 201. lid; 202. hinge part; 2021. limiting protrusion; 3. first abutting plane; 4. button; 401. abutting protrusion; 402. limiting part; 5. spring; 6. hinge shaft; 7. second abutting plane; 8. stop part; 9. damping rib; 10. cross rib. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0023] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying 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, and therefore cannot be understood as a limitation on the present invention.

[0025] In the present invention, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or interactions between two components. However, the phrase "direct connection" indicates that the two connected entities are not connected through an intermediate structure, but are connected only through a connecting structure to form a whole. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0027] In the present invention, Figures 1 to 5As shown, an electric kettle is provided, comprising a kettle body 1 and a kettle cover 2, wherein the kettle cover 2 comprises a cover 201, a hinged portion 202 connected to the cover 201, the hinged portion 202 being hinged to the kettle body 1 via a rotating shaft, characterized in that the hinged portion 202 extends away from the cover 201 to form a limiting protrusion 2021, the limiting protrusion 2021 being formed with a first abutting plane 3; the electric kettle further comprises a button 4, an elastic member 5 (spring), and the elastic member 5 (spring) is arranged It is placed between the kettle body 1 and the button 4, and the button 4 is hinged to the kettle body 1 around a hinge axis 6. The button 4 is formed with an abutment protrusion 401 on the side facing the kettle lid 2, and the abutment protrusion 401 has a second abutment plane 7; the normal plane of the second abutment plane and the first abutment plane fitting area passes through the hinge axis, or in other words, the normal plane of the first abutment plane 3 or the second abutment plane 7 passes through the hinge axis 6; when the kettle lid 2 is buckled into the kettle body 1, the elastic member 5 (spring) pushes the button 4 so that the first abutment plane 3 and the second abutment plane 7 fit and abut, and the abutment protrusion 401 stops the kettle lid 2 from rotating in the opening direction.

[0028] The normal surface is a collection of perpendicular lines drawn to the first abutting plane 3 or the second abutting plane 7. Alternatively, it can be understood that the contact area between the second abutting plane and the first abutting plane is a contact surface, and a perpendicular line is drawn on the contact surface, and the collection of the perpendicular lines is the normal surface. When the electric kettle of the present invention is in use,

[0029] Since the hinge part 202 and the button are generally matched through an arc surface, at this time, when the front end of the pot lid (near the spout) is subjected to the upward impact of the water flow, the hinge part 202 applies pressure to the button with the rotation axis of the hinge part as the fulcrum. At this time, the pressure is in the normal direction of the contact point, and the pressure will be decomposed into a downward force F1 and a horizontal rightward force F2 (toward the button direction). F2 has a pushing effect on the button, causing the button to rotate, thereby causing the hinge part 202 to disengage from the button and open the pot lid. On the other hand, the requirements for the elastic part of the button are also higher, and more supporting force needs to be provided to prevent the button from being pushed by the force applied by the pot lid.

[0030] like Figure 1 and Figure 3As shown, in order to prevent the pot lid from separating from the pot mouth of the pot body, after the pot lid 2 is buckled on the pot body 1, the abutment protrusion 401 of the button 4 abuts against the limiting protrusion 2021. When the front end of the pot lid 2 is subjected to the opening torque, the first abutment plane 3 is fitted with the second abutment plane 7. The normal plane of the fitting area of the second abutment plane and the first abutment plane passes through the hinge axis. Preferably, the normal direction of the normal plane is consistent with the height direction of the pot body, so that the abutment force transmitted by the limiting protrusion 2021 to the abutment protrusion 401 is directed to the hinge axis 6. The abutment protrusion 401 can transmit a supporting force to the limiting protrusion 2021. The supporting force and the abutment force are consistent or mostly the same, and the abutment force will not be decomposed, so that the pot lid 2 can remain in a buckled state even if it is subjected to the impact force of the water flow, and it will not increase the design requirements for the elastic member. That is, the rotational force arm of the button 4 subjected to the abutting force can be made small or even zero, thereby preventing the abutting protrusion 401 from rotating due to the opening torque of the lid 2, thereby ensuring a stable buckled state of the lid 2. In addition, when it is necessary to open the lid 2, the button 4 can be pressed, causing the abutting protrusion 401 to squeeze past the limiting protrusion 2021, thereby allowing the lid 2 to rotate and open. Since the first abutting plane 3 and the second abutting plane 7 are planar, that is, there is a separation distance between the first abutting plane 3 and the second abutting plane 7, the button needs to be pressed at a certain angle before the lid can be truly opened, thereby preventing the risk of consumers accidentally opening the lid.

[0031] As a preferred embodiment, more specifically, the normal plane of the contact area between the second abutting plane and the first abutting plane passes through the axis of the hinge shaft.

[0032] It should be noted that in Figure 1 In the embodiment shown, when the lid 2 is buckled on the kettle body 1, the second abutting plane 7 is horizontal and the second abutting plane 7 is located above the hinge shaft 6 as a whole. This is not a limitation of the present invention. In an alternative embodiment, the angle of the second abutting plane 7 can also be tilted. Preferably, when the lid 2 is buckled on the kettle body 1, the angle α between the second abutting plane 7 and the horizontal direction is selected from 0° to 60°. Preferably, the angle α is 0-30 degrees. Figure 4 In the embodiment shown, the angle α between the second abutting plane and the horizontal is such that the second abutting plane 7 can be tilted obliquely to the upper right. In this case, the position of the abutting protrusion 401 can be adjusted so that the normal of the second abutting plane 7 faces the hinge axis 6. In this case, by setting the tilt angle of the plane, the hinge axis 6 is brought closer to the button, which increases the pressing force required to open the lid. This improves the stability of the lid opening and reduces the possibility of leaking due to accidental button pressing.

[0033] In a preferred embodiment, more specifically, to prevent the risk of consumers accidentally opening the lid, the two endpoints of the contact area between the second abutting plane and the first abutting plane are respectively connected to the axis of the hinge shaft to form a first line and a second line, and the angle B between the first line and the second line is greater than 5 degrees. The angle B is preferably 7-9 degrees.

[0034] It should be noted that the present invention improves the electric kettle in the structure of the lid 2 opening, and does not limit the other structural components of the electric kettle. The other structures of the electric kettle can be selected from existing structural components according to design requirements. Figure 1 In the embodiment shown, a torsion spring may be provided between the hinge portion 202 and the kettle body 1 so that the kettle lid 2 can open automatically after losing the restriction of the abutment protrusion, or an elastic member 5 (spring) may be provided to drive the kettle lid 2 to open.

[0035] A further optimization of the arrangement of the first abutting plane 3 and the second abutting plane 7 is that the width of the contact area between the second abutting plane 7 and the first abutting plane 3 along the circumference of the hinge axis 6 is greater than or equal to 2 mm. Figure 3 As shown, the width of d1 is greater than or equal to 2 mm and less than or equal to 7 mm, preferably 2 mm to 5 mm, thereby ensuring that the first abutting plane 3 is in full contact with the second abutting plane 7, ensuring the stability of the surface-to-surface contact, and making the force on the second abutting plane 7 more uniform, so as to prevent the abutment between the end of the first abutting plane and the second abutting plane from causing unstable force transmission direction, and ensuring that the force on the second abutting plane 7 is directed toward the hinge axis 6. During the lid opening process, since the width of the fitting area along the circumference of the hinge axis 6 is greater than or equal to 2 mm, the limiting protrusion 2021 needs to move a certain distance on the abutting protrusion 401 before it can be disengaged, preventing the user from accidentally triggering the lid opening button while pouring water or moving the kettle, which may affect safety or spill water.

[0036] As a preferred embodiment, more specifically, in order to achieve a better lid closing effect, the width of the hinge axis is greater than the width of the contact area between the second abutting plane and the first abutting plane.

[0037] In a preferred embodiment, more specifically, the center normal of the area where the second abutting plane 7 contacts the first abutting plane 3 passes through the hinge axis 6. This ensures that the abutting force against the rotational force of the button 4 is zero, further preventing the button 4 from being rotated by the lid 2 and ensuring the stability of the lid 2. Preferably, the center normal of the area where the second abutting plane contacts the first abutting plane passes through the hinge axis.

[0038] for Figure 1In the illustrated embodiment, a further optimization is that a groove is formed on the abutting projection, and the second abutting plane is disposed within the groove. When the lid is closed on the kettle body, the limiting projection engages within the groove, and the hinge axis is located below the groove. This structural design facilitates the design of the positional relationship between the plane and the intersection axis, while also eliminating interference issues.

[0039] for Figure 1 In the embodiment shown, further optimization is that the button 4 is formed with a limiting portion 402, and the kettle body 1 is formed with a stop portion 8. When the kettle lid 2 is buckled on the kettle body 1 and the kettle lid 2 is rotated in the opening direction, the limiting protrusion 2021 pushes the abutting protrusion 401 to rotate, and the stop portion 8 is located on the rotation path of the limiting portion 402, and the stop portion 8 stops the button 4 from rotating. Figure 3 and Figure 4 As shown, by providing the stopper 8 and the limiting portion 402, when the pot cover 2 applies a rotational torque to the button 4, the pot cover 2 can be prevented from pushing the button 4 to rotate counterclockwise, thereby further ensuring the stability of the pot cover 2 buckling.

[0040] To ensure smoother use and easier assembly, in a preferred embodiment, when the lid 2 is engaged with the kettle body 1, a gap is provided between the limiting portion 402 and the stop portion 8, with the width of the gap being greater than 0 mm and less than or equal to 0.2 mm. This gap d2 allows for some margin for machining and assembly errors during assembly. Furthermore, if the user accidentally touches the button 4, causing it to rotate counterclockwise, the rotational travel of the button 4 is limited, improving user experience.

[0041] for Figure 1 In the illustrated embodiment, a further optimization is that the kettle body 1 is provided with two damping ribs 9 arranged opposite each other. When the kettle lid 2 rotates in the opening direction, the limiting protrusion 2021 rotates between the two damping ribs 9. The width between the two damping ribs 9 gradually decreases along the direction in which the limiting protrusion 2021 enters. After the kettle lid 2 is opened, the limiting protrusion 2021 abuts the two damping ribs 9. By providing two damping ribs 9, the limiting protrusion 2021 can gradually enter between the two damping ribs 9 when the kettle lid 2 is opened, gradually slowing the opening speed of the kettle lid 2 and preventing problems such as the kettle lid 2 shaking or water splashing caused by excessive rotation of the kettle lid 2. Thus, the limiting protrusion 2021 of the present invention can not only cooperate with the button 4 to control the rotation of the kettle lid 2, but also control the rotation speed of the kettle lid 2, further improving the user experience.

[0042] for Figure 1In the embodiment shown, more specifically, the hinge portion 202 is connected to the cover 201 via threaded fasteners. Figure 1 As shown, the hinge portion 202 and the pot lid 2 can be easily processed. Figure 1 As shown, the screw passes through the hinge portion 202 and is connected to the lid body 201. For the arrangement of the hinge portion 202, the kettle lid 2 and the hinge portion 202 can also be formed integrally.

[0043] For the installation of the pot cover 2 and button 4, Figure 1 In the embodiment shown, the kettle body 1 includes a kettle body 101 and a handle 102, and the kettle lid 2 and the button 4 are both mounted on the handle 102. Figure 1 As shown, the handle 102 is installed on the kettle body 101. By installing the kettle lid 2 and the button 4 on the handle 102, the handle 102 can be injection molded, and the hinged structure of the kettle lid 2 and the kettle body 1 and the installation structure of the button 4 can be conveniently processed.

[0044] for Figure 1 In the embodiment shown, more specifically, the button 4 is formed with a cross rib 10 inserted into the elastic member 5 (spring). Figure 2 As shown, the elastic member 5 (spring) can be easily installed on the button 4, making the installation more convenient.

[0045] for Figure 1 In the embodiment shown, more specifically, the abutting protrusion and the button are an integral piece; or, the abutting protrusion and the button are separate pieces. The accompanying drawings of this embodiment show a schematic structural diagram of the abutting protrusion and the button being an integral piece.

[0046] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0047] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. An electric kettle comprising a kettle body and a kettle lid, wherein the kettle lid comprises a cover body and a hinge portion connected to the cover body, wherein the hinge portion is hinged to the kettle body, wherein: The hinge portion extends away from the cover body to form a limiting protrusion, and the limiting protrusion is formed with a first abutment plane; it also includes a button rotatably connected to the kettle body, and the button is formed with an abutment protrusion on the side facing the kettle lid, and the abutment protrusion is hinged to the kettle body around a hinge axis; the abutment protrusion has a second abutment plane; the normal plane of the fitting area of the second abutment plane and the first abutment plane passes through the hinge axis, and the normal plane is a collection of perpendicular lines drawn to the first abutment plane or the second abutment plane, or the fitting area of the second abutment plane and the first abutment plane is a contact surface, and a perpendicular line is drawn on the contact surface, and the collection of the perpendicular lines is the normal plane; when the kettle lid is closed on the kettle body, the second abutment plane supports the first abutment plane, and the abutment protrusion stops the kettle lid from rotating in the opening direction.

2. The electric kettle according to claim 1, characterized in that A normal plane of a contact area between the second contact plane and the first contact plane passes through the axis of the hinge shaft.

3. The electric kettle according to claim 1, characterized in that A center normal of a contact area between the second abutting plane and the first abutting plane passes through the hinge axis.

4. The electric kettle according to claim 1, characterized in that When the kettle lid is buckled onto the kettle body, the angle between the second abutting plane and the horizontal direction is selected from 0° to 30°.

5. The electric kettle according to claim 1, characterized in that: Two endpoints of the fitting area between the second abutting plane and the first abutting plane are respectively connected to the axis of the hinge shaft to form a first line and a second line, and the angle between the first line and the second line is greater than 5 degrees.

6. The electric kettle according to claim 1, characterized in that: The width of the hinge axis is greater than the width of the contact area between the second abutting plane and the first abutting plane; or, the normal direction of the normal plane is consistent with the height direction of the kettle body.

7. The electric kettle according to claim 1, characterized in that A groove is formed on the abutting protrusion, and the second abutting plane is arranged in the groove. When the pot lid is closed on the pot body, the limiting protrusion is embedded in the groove, and the hinge shaft is located below the groove.

8. The electric kettle according to any one of claims 1 to 3, characterized in that: The abutment protrusion forms a limiting portion, and the kettle body forms a stop portion. When the kettle lid is closed on the kettle body and the kettle lid is rotated in the opening direction, the limiting protrusion pushes the abutment protrusion to rotate, and the stop portion is located on the rotation path of the limiting portion, and the stop portion stops the button from rotating.

9. The electric kettle according to claim 8, characterized in that: When the pot cover is closed over the pot body, a gap is provided between the limiting portion and the stopping portion, and a width of the gap is greater than 0 mm and less than or equal to 0.2 mm.

10. The electric kettle according to claim 1, characterized in that It also includes an elastic member arranged between the kettle body and the button, and the button is formed with a cross rib inserted into the elastic member; or, the abutment protrusion and the button are an integral part; or, the abutment protrusion and the button are separate parts; or, the hinged portion is connected to the cover body by a threaded fastener; or, the lower surface of the kettle cover is lower than the first abutment plane; or, the kettle body includes a kettle body and a handle, and the kettle cover and the button are both installed on the handle; the handle includes a handle seat and a handle cover, and the handle cover is provided with a mounting hole, and the button is provided in the mounting hole; or, the kettle body is provided with two damping ribs arranged opposite to each other, and when the kettle cover is rotated in the opening direction, the limiting protrusion rotates between the two damping ribs, and the width between the two damping ribs gradually decreases along the direction in which the limiting protrusion enters, and after the kettle cover is opened, the limiting protrusion abuts against the two damping ribs.

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