CN220786753U - Kettle body and kettle cover thereof - Google Patents

Abstract

The utility model relates to the field of kitchen containers, in particular to a kettle body and a kettle cover thereof. A kettle cover comprises a connecting seat and a cover body; the cover body is detachably or rotatably connected to the connecting seat; the connecting seat is provided with an inlet, and the cover body is provided with a liquid outlet communicated with the inlet; the connecting seat is provided with a first sealing ring; the cover body is provided with a sealing part which at least extends downwards to form an annular retaining wall, and the liquid outlet is formed in an area surrounded by the annular retaining wall; when the cover body is covered on the connecting seat, the sealing effect is achieved based on the matching of the annular retaining wall and the inner edge of the first sealing ring, so that liquid in the kettle is prevented from leaking from the joint of the cover body and the connecting seat, and the sealing effect is ensured.

Description

Kettle body and kettle cover thereof

Technical Field

The utility model relates to the field of kitchen containers, in particular to a kettle body and a kettle cover thereof.

Background

The pot body is mainly used for containing liquid, such as a kettle, an oilcan and the like, and in a kitchen, a lot of seasonings are in a liquid form, such as salad oil, soy sauce and the like, particularly salad oil, peanut oil and the like are used as main cooking seasonings, and the pot body is often packed in a large capacity of 2 liters or 5 liters and the like when purchased, and a user needs to split the pot body into small pot bodies so as to conveniently use the pot body.

The prior art refers to a Chinese patent with reference to publication number CN 219397071U, which relates to an automatic opening and closing oil can, comprising an oil bottle, a bottle cap and a handle, wherein the handle is fixed at the inlet of the oil bottle through a connecting sleeve; a sealing gasket is arranged between the connecting sleeve and the oil bottle; the sealing gasket ensures the oil sealing effect of the connecting sleeve and the inlet of the oil bottle. Further, the bottle cap comprises a cap body, a cap body and a dust cap; the top of the cover body is provided with a nozzle; the dustproof cover matched with the cover body for shielding the oil nozzle is hinged on the cover body through a first connecting shaft; the cover body is connected with the cover body through a lifting mechanism; a sealing ring is arranged below the cover body; the sealing ring has two functions, one is used for reinforcing the fixed connection between the bottle cap and the oil bottle, and the other is used for realizing secondary sealing on the oil bottle.

In the technical scheme, the sealing gasket is pressed between the connecting sleeve and the oil bottle, and only the sealing effect of the threaded connection part can be improved. There is no effect to prevent edible oil from flowing between the cover body and the dust cover, and improvement is required.

Disclosure of Invention

In order to solve the above problems, a first object of the present utility model is to provide a lid, which is based on the cooperation of an annular blocking wall and an inner edge of a first sealing ring, so as to achieve a sealing effect, thereby avoiding leakage of liquid in the lid from a joint between a lid body and a connecting seat, and ensuring the sealing effect.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a kettle cover comprises a connecting seat and a cover body; the cover body is detachably or rotatably connected to the connecting seat; the connecting seat is provided with an inlet, and the cover body is provided with a liquid outlet communicated with the inlet; the connecting seat is provided with a first sealing ring; the cover body is provided with a sealing part which at least extends downwards to form an annular retaining wall, and the liquid outlet is formed in an area surrounded by the annular retaining wall; when the cover body is covered on the connecting seat, the annular retaining wall is contacted with the first sealing ring to form a seal.

The utility model adopts the technical proposal, which relates to a kettle cover, a connecting seat in the kettle cover is used for being connected with a kettle body, and a cover body is arranged on the connecting seat in a detachable (such as the proposal described in the prior patent with the bulletin number of CN 219397071U) or rotary way. The leading-in port on the connecting seat is communicated with the inner cavity of the kettle body, and the liquid outlet on the cover body is used for pouring out the edible oil stored in the kettle body in a dumping state.

In this scheme, install first sealing washer on the connecting seat to set up downwardly extending's annular retaining wall on the sealing portion of lid body. When closing lid body lid on the connecting seat, based on the inner edge cooperation of annular retaining wall and first sealing washer, reach sealed effect to avoid in the kettle liquid to leak from the junction of lid body and connecting seat, guarantee sealed effect.

Specifically, one of the following two schemes can be adopted to achieve the sealing effect:

scheme 1: the annular retaining wall of the sealing part is inserted into the inner edge of the first sealing ring, and the lower end part of the annular retaining wall extends into the lower part of the inner edge of the first sealing ring; the outer side surface of the annular retaining wall is contacted with the inner edge surface of the first sealing ring and forms a seal in the circumferential direction. The scheme adopts a sealing plug-in scheme, and in the implementation process of the scheme 1, the inner diameter of the first sealing ring is smaller than the outer diameter of the annular retaining wall, so that the annular retaining wall is inserted into the inner edge of the first sealing ring in an interference manner. In this solution, the solution here requires that the inner diameter of the first sealing ring is smaller than the outer diameter of the annular retaining wall, which diameter difference ensures that a certain surplus is present, so that the annular retaining wall is inserted with interference into the inner edge of the first sealing ring, so that the sealing effect of the plug-in connection is ensured.

In a further scheme, the inner diameter D1 of the first sealing ring accounts for 0.9+/-5% of the outer diameter D2 of the annular blocking wall, namely the range of D1 to D2 is 85% -95%, so that 5% -15% surplus exists, and the interference fit effect is ensured.

Scheme 2: the annular retaining wall is pressed against the inner edge of the first sealing ring, and the lower end face of the annular retaining wall is in contact with the inner edge of the first sealing ring and forms a seal on the circumferential length. The annular blocking wall of the sealing part in this solution is not inserted into the inner edge of the first sealing ring, but is pressed against the inner edge of the first sealing ring. In the low state, the inner edge of the first sealing ring is just pressed, and under the condition of ensuring the fitting degree, the inner edge of the first sealing ring can not deform, or the inner edge of the first sealing ring can deform to a certain extent according to the scheme described below, so that the tightness is ensured; based on this, the lower end face of the annular blocking wall is brought into contact with the inner edge of the first seal ring and forms a seal over the circumferential length.

In the two schemes, considering the sealing effect of the first sealing ring and the annular blocking wall, the hardness of the first sealing ring is required, specifically, the first sealing ring is required not to generate wrinkles when being inserted or pressed, so that gaps generated by the wrinkles are avoided; such folds are mainly in the radial direction and in the circumferential direction. Therefore, the hardness of the first sealing ring in the scheme needs to satisfy: when the annular retaining wall is inserted into or pressed against the inner edge of the first sealing ring, the inner edge of the first sealing ring deforms only in the axial direction. The deformation in the axial direction refers to the insertion or pressing direction of the annular retaining wall, the inner edge of the first sealing ring is deformed in a homeotropic manner due to the acting force of the annular retaining wall, and the deformation in the axial direction can be increased to the fitting force of the annular retaining wall and the inner edge, so that the sealing effect is improved.

In a further aspect, the hardness of the first sealing ring is 50-70 vickers, and the actually selected aspect is 50 vickers.

Preferably, the first sealing ring comprises an outer ring body and an inner ring body which is formed by extending inwards along the radial direction of the outer ring body; the outer ring body protrudes towards at least one axial side relative to the inner ring body, namely a protruding part.

Preferably, a positioning ring is formed at the upper end of the connecting seat, and the inner space of the positioning ring forms the inlet; the outer edge of the first sealing ring is clamped and positioned in the positioning ring, and the inner diameter of the first sealing ring is smaller than that of the positioning ring, so that the inner edge of the first sealing ring extends into the guide-in opening at the inner side of the positioning ring. In the scheme, the locating ring at the upper end of the connecting seat is used for locating and installing the first sealing ring, and after the outer edge of the first sealing ring is installed through the locating ring, the inner edge of the first sealing ring is required to extend into the guide inlet at the inner side of the locating ring, so that the annular baffle wall can be inserted into or pressed against the inner edge of the first sealing ring when being installed into the guide inlet.

In a specific embodiment, the inner edge of the positioning ring extends downwards to form a flange, a clamping ring groove is formed between the flange and the inner wall of the connecting seat, a protruding part protruding towards one axial side is arranged on the first sealing ring, and the protruding part is clamped in the clamping ring groove.

Further, a connecting part for fixedly connecting the kettle body is arranged on the connecting seat below the positioning ring, and particularly, the connecting part for fixedly connecting the kettle body is arranged below the clamping ring groove and is arranged as an internal thread connecting part in an implementation scheme. The first sealing ring is arranged between the upper end of the connecting part and the positioning ring, and when the kettle body is connected with the connecting part, the bottle opening of the kettle body presses the first sealing ring, so that the sealing effect between the connecting seat and the kettle body is ensured by the first sealing ring.

Preferably, the cover body is further sleeved with a second sealing ring on the outer side wall of the root of the annular retaining wall; the connecting seat is provided with an annular surface in the inlet above the first sealing ring; when the cover body is covered on the connecting seat, the second sealing ring at least partially presses against the annular surface to form a seal on the circumferential length. In the scheme, the second sealing ring is used as a second seal of the sealing part, and when the cover body is covered on the connecting seat, the second sealing ring at least partially presses against the annular surface to form a seal in the circumferential length; thereby the secondary seal is carried out between the cover body and the connecting seat, and the liquid in the kettle is prevented from flowing into the cover body outside the annular retaining wall.

In a specific embodiment, the cover body is provided with a positioning groove at the root of the annular retaining wall, and the second sealing ring is embedded in the positioning groove and sleeved on the outer side wall of the root of the annular retaining wall.

A second object of the present utility model is to provide a kettle body, which comprises a kettle body, wherein a kettle opening is arranged at the top of the kettle body, and a kettle cover as described above is arranged at the kettle opening. The kettle cover can prevent liquid in the kettle from leaking from the joint of the cover body and the connecting seat, ensure the sealing effect and ensure the use cleanness.

In summary, the above scheme has the following effects:

1, the first sealing ring not only realizes the sealing between the kettle body and the connecting seat, but also is used as the first sealing between the connecting seat and the cover body, namely, the first sealing ring has two sealing effects.

And 2, limiting the inner diameter size and the hardness of the inner edge of the first sealing ring, thereby ensuring the sealing effect of the inner edge of the first sealing ring and the annular retaining wall.

3, at least partially pressing the second sealing ring against the annular surface to form a seal in the circumferential direction; thereby carrying out secondary sealing between the cover body and the connecting seat and improving the sealing effect; the liquid in the kettle is prevented from flowing into the cover body outside the annular retaining wall.

Drawings

Fig. 1 is a perspective view of an opened state of a pot lid.

Fig. 2 is a sectional view showing a closed state of the pot lid.

Fig. 3 is a sectional view showing an opened state of the pot lid.

Fig. 4 is an enlarged view of a portion a of fig. 3.

Fig. 5 is a schematic structural view of the first seal ring.

Fig. 6 is a schematic view of the structure of the kettle body described in example 2.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1:

as shown in fig. 1 to 5, the present embodiment relates to a pot lid, which comprises a connecting seat 1 and a lid body 2. The cover body 2 is detachably or rotatably connected to the connecting seat 1. The connecting seat 1 is provided with an inlet 10, and the cover body 2 is provided with a liquid outlet 20 communicated with the inlet 10. The connecting seat 1 in the kettle cover is used for being connected to the kettle body, and the cover body 2 is arranged on the connecting seat 1 in a detachable (such as the scheme described in the prior patent with the publication number of CN 219397071U) or rotary mode (the scheme shown in the figure). The inlet 10 on the connecting seat 1 is communicated with the inner cavity of the kettle body 3, and the liquid outlet 20 on the cover body 2 is used for pouring edible oil stored in the kettle body 3 in a dumping state. In this scheme, still can set up buckle mechanism between lid body and the connecting seat, realize lid body 2 and the rigid coupling of connecting seat 1 or loosen through buckle mechanism.

In this embodiment, a first seal ring 4 is mounted on the connection base 1. The cover body 2 is provided with a sealing part 21, the sealing part 21 is at least extended downwards to form an annular retaining wall 22, and the liquid outlet 20 is formed in an area surrounded by the annular retaining wall 22. When the cover body 2 is covered on the connecting seat 1, the sealing effect is achieved based on the matching of the annular retaining wall 22 and the inner edge 400 of the first sealing ring 4, so that the leakage of liquid in the kettle from the joint of the cover body 2 and the connecting seat 1 is avoided, and the sealing effect is ensured.

The sealing effect can be achieved in the following two modes:

scheme 1: the annular blocking wall 22 of the sealing part 21 is inserted into the inner edge of the first sealing ring 4, and the lower end part of the annular blocking wall 22 extends below the inner edge 400 of the first sealing ring 4. The outer side of the annular blocking wall 22 is in surface contact with the inner edge 400 of the first sealing ring 4 and forms a seal over the circumferential length.

Scheme 2: the annular blocking wall 22 of the sealing portion 21 is not inserted into the inner edge 400 of the first sealing ring 4, but is pressed against the inner edge 400 of the first sealing ring 4, and in this case, in a pressed state, the annular blocking wall may just press against the inner edge 400 of the first sealing ring 4, and under the condition of ensuring the fitting degree, the inner edge 400 of the first sealing ring 4 may not deform, or may deform the inner edge 400 of the first sealing ring 4 to a certain extent, as in the following description scheme, so as to ensure the sealing performance. Based on this, the lower end surface of the annular blocking wall 22 is brought into contact with the inner edge 400 of the first seal ring 4 and forms a seal over the circumferential length.

In the implementation of the embodiment 1, the inner diameter of the first sealing ring 4 is smaller than the outer diameter of the annular blocking wall 22, so that the annular blocking wall 22 is inserted into the inner edge 400 of the first sealing ring 4 in an interference manner. In this solution, the solution here requires that the inner diameter of the first sealing ring 4 is smaller than the outer diameter of the annular barrier wall 22, this difference in diameter ensuring that a certain surplus exists, so that the annular barrier wall 22 is interference-inserted into the inner edge 400 of the first sealing ring 4 to ensure the sealing effect of the plug-in. In a further scheme, the inner diameter D1 of the first sealing ring 4 accounts for 0.9±5% of the outer diameter D2 of the annular blocking wall 22, that is, the range of D1 to D2 is 85% -95%, so that 5% -15% surplus exists, and the interference fit effect is ensured.

In both of the embodiments 1 and 2, the consideration of the sealing effect of the first seal ring 4 and the annular blocking wall 22 requires that the hardness of the first seal ring 4, specifically, the first seal ring 4 is not wrinkled when being inserted or pressed, so that a gap caused by the wrinkled is avoided. Such folds are mainly in the radial direction and in the circumferential direction. Therefore, the hardness of the first seal ring 4 in this embodiment needs to satisfy: when the annular blocking wall 22 is inserted into or pressed against the inner edge 400 of the first sealing ring 4, the inner edge 400 of the first sealing ring 4 is deformed only in the axial direction. The deformation in the axial direction refers to that the annular blocking wall 22 is inserted or pressed against, and the inner edge 400 of the first sealing ring 4 deforms along the trend due to the acting force of the annular blocking wall 22, and the deformation in the axial direction can be increased to the fitting force of the annular blocking wall 22 and the inner edge 400, so that the sealing effect is improved. The hardness of the first sealing ring 4 is measured to be 50-70 vickers by test, and the actual selected scheme is 50 vickers.

As shown in fig. 3 and 4, the upper end of the connecting seat 1 is formed with a positioning ring 11, and the inner space of the positioning ring 11 is formed with the inlet 10. The outer edge of the first sealing ring 4 is clamped and positioned in the positioning ring 11, and the inner diameter of the first sealing ring 4 is smaller than the inner diameter of the positioning ring 11, so that the inner edge 400 of the first sealing ring 4 extends into the inlet 10 at the inner side of the positioning ring 11. In this embodiment, the positioning ring 11 at the upper end of the connection seat 1 is used for positioning and installing the first sealing ring 4, and after the outer edge of the first sealing ring 4 is installed by the positioning ring 11, the inner edge 400 of the first sealing ring 4 is required to extend into the introducing port 10 at the inner side of the positioning ring 11, so that the annular blocking wall 22 can be inserted into or pressed against the inner edge 400 of the first sealing ring 4 when the annular blocking wall 22 is installed into the introducing port 10.

In a specific embodiment, the inner edge 400 of the positioning ring 11 extends downward to form a flange 12, and a snap ring groove 13 is formed between the flange 12 and the inner wall of the connecting seat 1. As shown in fig. 5, the first seal ring 4 includes an outer ring body 41, and an inner ring body 42 formed by extending radially inward along the outer ring body 41. The outer ring 41 protrudes at least axially to one side relative to the inner ring 42, and the protruding portion 43 is engaged with the snap ring groove 13.

Further, a connecting portion 14 for fixedly connecting the kettle body 3 is provided on the connecting seat 1 below the positioning ring 11, the first sealing ring 4 is disposed between the upper end of the connecting portion 14 and the positioning ring 11, and when the kettle body 3 is connected with the connecting portion 14, the bottle mouth of the kettle body 3 presses the first sealing ring 4, so that the sealing effect between the connecting seat 1 and the kettle body 3 is ensured by the first sealing ring 4. As shown in fig. 3, below the snap ring groove 13 is a connection 14 for fastening the kettle body 3, the connection 14 being provided in an embodiment as an internally threaded connection 14.

As shown in fig. 2 and 3, the cover body 2 is further sleeved with a second sealing ring 5 on the outer side wall of the root of the annular blocking wall 22. The connection seat 1 has an annular surface 110 formed in the inlet 10 above the first seal ring 4, and the annular surface 110 is shown as an upper end surface of the positioning ring 11. When the cover body 2 is covered on the connecting seat 1, the second sealing ring 5 at least partially abuts against the annular surface 110 to form a seal on the circumferential length. In this embodiment, the second seal ring 5 is used as a second seal of the seal portion 21, and when the cover body 2 is covered on the connection seat 1, the second seal ring 5 at least partially abuts against the annular surface 110 to form a seal in the circumferential direction. Thereby the secondary seal is carried out between the cover body 2 and the connecting seat 1, and the liquid in the kettle is prevented from flowing into the cover body 2 outside the annular retaining wall 22. In a specific embodiment, the cover body 2 is provided with a positioning groove 23 at the root of the annular blocking wall 22, and the second sealing ring 5 is embedded in the positioning groove 23 and sleeved on the outer side wall of the root of the annular blocking wall 22.

In summary, the above scheme has the following effects:

1, the first sealing ring 4 not only realizes the sealing between the kettle body 3 and the connecting seat 1, but also serves as the first sealing between the connecting seat 1 and the cover body 2, namely, the first sealing ring 4 has two sealing effects.

2, the inner diameter size and the hardness of the inner edge 400 of the first sealing ring 4 are limited, so that the sealing effect of the inner edge 400 of the first sealing ring 4 and the annular blocking wall 22 is ensured.

3, the second sealing ring 5 forms a seal over the circumferential length at least partially against the annular surface 110. Thereby carry out secondary seal between lid body 2 and connecting seat 1, promote sealed effect. The liquid in the kettle is prevented from flowing into the cover body 2 outside the annular retaining wall 22.

Example 2:

as shown in fig. 6, a second object of the present utility model is to provide a kettle body, comprising a kettle body 3, wherein a kettle opening is provided at the top of the kettle body 3, and a kettle lid as described in embodiment 1 is provided at the kettle opening. The kettle cover can prevent liquid in the kettle from leaking from the joint of the cover body 2 and the connecting seat 1, ensure the sealing effect and ensure the use cleanness.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.

Claims (12)

1. A kettle cover, which comprises a connecting seat (1) and a cover body (2); the cover body (2) is arranged on the connecting seat (1); an inlet (10) is arranged in the connecting seat (1), and a liquid outlet (20) communicated with the inlet (10) is arranged on the cover body (2); the method is characterized in that: a first sealing ring (4) is arranged on the connecting seat (1); the cover body (2) is provided with a sealing part (21), the sealing part (21) at least extends downwards to form an annular blocking wall (22), and the liquid outlet (20) is formed in an area surrounded by the annular blocking wall (22); when the cover body (2) is covered on the connecting seat (1), the annular retaining wall (22) is contacted with the first sealing ring (4) to form a seal.

2. A kettle lid as claimed in claim 1, wherein: the annular blocking wall (22) is inserted into the inner edge (400) of the first sealing ring (4), and the lower end part of the annular blocking wall (22) extends into the lower part of the inner edge (400) of the first sealing ring (4); the outer side surface of the annular retaining wall (22) is in surface contact with the inner edge (400) of the first sealing ring (4) and forms a seal in the circumferential direction.

3. A kettle lid as claimed in claim 1, wherein: the annular blocking wall (22) is pressed against the inner edge (400) of the first sealing ring (4), and the lower end face of the annular blocking wall (22) is contacted with the inner edge (400) of the first sealing ring (4) and forms a seal in the circumferential length.

4. A kettle lid as claimed in claim 1, wherein: the inner diameter of the first sealing ring (4) is smaller than the outer diameter of the annular blocking wall (22).

5. A kettle lid as claimed in claim 4, wherein: the ratio of the inner diameter D1 of the first sealing ring (4) to the outer diameter D2 of the annular blocking wall (22) is 0.85-0.95.

6. A kettle lid as claimed in claim 1, wherein: the hardness of the first sealing ring (4) is 50-70 Vickers hardness.

7. A kettle lid as claimed in claim 1, wherein: the first sealing ring (4) comprises an outer ring body (41) and an inner ring body (42) which is formed by extending inwards along the radial direction of the outer ring body (41); the outer ring body (41) is provided with a protruding part (43) protruding to one side in the axial direction.

8. A kettle lid as claimed in claim 1, wherein: a positioning ring (11) is formed at the upper end of the connecting seat (1), and the inner space of the positioning ring (11) forms the inlet (10); the outer edge of the first sealing ring (4) is clamped and positioned in the positioning ring (11), and the inner diameter of the first sealing ring (4) is smaller than that of the positioning ring (11), so that the inner edge (400) of the first sealing ring (4) stretches into the guide inlet (10) at the inner side of the positioning ring (11).

9. A kettle lid as claimed in claim 8, wherein: the inner edge (400) of the positioning ring (11) extends downwards to form a flange (12), and a clamping ring groove (13) is formed between the flange (12) and the inner wall of the connecting seat (1); the first sealing ring (4) is provided with a protruding part (43) protruding to one axial side, and the protruding part (43) is clamped in the clamping ring groove (13).

10. A kettle lid as claimed in claim 9, wherein: a connecting part (14) for fixedly connecting the kettle body (3) is arranged on the connecting seat (1) below the positioning ring (11), and the first sealing ring (4) is arranged between the upper end of the connecting part (14) and the positioning ring (11); when the kettle body (3) is connected with the connecting part (14), the bottle opening of the kettle body (3) presses the first sealing ring (4), so that the sealing effect between the connecting seat (1) and the kettle body (3) is ensured through the first sealing ring (4).

11. A kettle lid as claimed in claim 1, wherein: the cover body (2) is also sleeved with a second sealing ring (5) on the outer side wall of the root of the annular retaining wall (22); an annular surface (110) is formed in the guide-in port (10) above the first sealing ring (4) of the connecting seat (1); when the cover body (2) is covered on the connecting seat (1), the second sealing ring (5) at least partially presses the annular surface (110) to form a seal on the circumferential length.

12. A kettle body comprising a kettle body (3), wherein a kettle opening is arranged at the top of the kettle body (3), and the kettle cover as claimed in any one of claims 1 to 11 is arranged at the kettle opening.