Kettle lid and kettle using same

Abstract

The kettle cover comprises a cover body, a surface cover, an inner cover, a first pressure relief mechanism, a second pressure relief mechanism and a third pressure relief mechanism, a protruding portion is formed on the cover body, the inner cover is arranged on the periphery of the protruding portion in a sleeved mode, the surface cover is arranged on the cover body in a sleeved mode, and an exhaust cavity used for exhausting gas is formed between the surface cover and the protruding portion. An exhaust hole communicated with the exhaust cavity is formed in the surface cover, the first pressure relief mechanism, the second pressure relief mechanism and the third pressure relief mechanism are installed in the inner cover, and a first air outlet hole, a second air outlet hole and a third air outlet hole corresponding to the first pressure relief mechanism, the second pressure relief mechanism and the third pressure relief mechanism respectively are formed in the bottom of the inner cover. Three pressure relief mechanisms are arranged in the kettle cover, the first pressure relief mechanism is a slow pressure relief mechanism, the second pressure relief mechanism is a manual rapid pressure relief mechanism, the third pressure relief mechanism is an automatic pressure relief mechanism, the three pressure relief mechanisms can work under different conditions, and compared with a traditional kettle cover with only one pressure relief mechanism, the safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a pot cover and a pot using the same. Background Art

[0002] The kettle is one of the essential electrical appliances in daily life. In recent years, electric kettles have been used more and more widely. Compared with water dispensers, they have the advantages of fast boiling speed and high temperature.

[0003] At present, electric kettles without spouts on the market generally achieve their purpose of use by providing a detachable kettle lid. This kind of kettle generally needs to be tightly covered when boiling water in order to work. In order to ensure safety, the kettle lid of current electric kettles is generally provided with a pressure relief valve. However, most kettles currently have only one pressure relief structure, which is a pressure relief valve. The pressure relief method is to manually press the pressure relief valve to achieve pressure relief after the boiling of water and before use. However, a kettle with this structure will not have safety problems under normal circumstances. However, when there is a failure of the electronic control or the thermostat, the kettle may continue to boil water, which may easily cause a substantial increase in the air pressure in the kettle. Since this situation occurs inside the kettle, it is impossible to give the user a signal reminder, and there is a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a pot cover and a pot using the pot cover, which can at least solve one of the above problems.

[0005] According to one aspect of the utility model, a kettle lid is provided, comprising a lid body, a surface cover, an inner cover, a first pressure relief mechanism, a second pressure relief mechanism and a third pressure relief mechanism, the lid body is formed with a protrusion, the inner cover is sleeved on the outer periphery of the protrusion, the surface cover is sleeved on the lid body and an exhaust cavity for gas exhaust is formed between the surface cover and the protrusion, an exhaust hole connected with the exhaust cavity is provided on the surface cover, the first pressure relief mechanism, the second pressure relief mechanism and the third pressure relief mechanism are installed on the inner cover, and the bottom of the inner cover is provided with a first air outlet hole, a second air outlet hole and a third air outlet hole corresponding to the first pressure relief mechanism, the second pressure relief mechanism and the third pressure relief mechanism, respectively.

[0006] Therefore, the utility model provides a kettle lid with a brand-new structure, in which three pressure relief mechanisms are arranged, the first pressure relief mechanism is a slow pressure relief mechanism, the second pressure relief mechanism is a manual quick pressure relief mechanism, and the third pressure relief mechanism is an automatic pressure relief mechanism. The three pressure relief mechanisms can work in different situations, which is safer than the traditional kettle lid with only one pressure relief mechanism. The specific working principle is: when boiling water, the air pressure in the kettle increases. Since only the first air outlet is in a normally open state, the hot steam generated will first be automatically and slowly discharged from the first pressure relief mechanism, so that the air pressure in the kettle will not increase sharply, and the first pressure relief mechanism plays a role of slow pressure relief. Secondly, before the water is boiled and used, the second pressure relief mechanism can be manually operated to quickly discharge the high-temperature and high-pressure gas in the kettle, so that the air pressure in the kettle drops sharply, avoiding safety accidents such as water spraying when the lid is opened due to high air pressure when the kettle is opened, causing burns. Finally, the third pressure relief mechanism is an automatic pressure relief mechanism, which is a safety mechanism. When the first pressure relief mechanism fails and the electronic control fails, the kettle continues to boil water, and the air pressure in the kettle continues to increase. When the air pressure increases to a certain value, the third pressure relief mechanism automatically starts, causing the third air outlet to open, thereby dissipating the air pressure in the kettle and avoiding safety accidents.

[0007] In some embodiments, the first pressure relief mechanism includes a breathable membrane, the inner cover is formed with a first limiting groove respectively connected to the first air outlet and the exhaust cavity, and the breathable membrane is installed in the first limiting groove.

[0008] In some embodiments, the first pressure relief mechanism further includes a clamping block, which cooperates with the first limiting groove and can press the breathable membrane against the bottom of the first limiting groove, and the upper end of the clamping block abuts against the bottom of the protrusion.

[0009] In some embodiments, the pot cover further includes a fixing block, which is sleeved on the raised portion and fixedly connected to the inner cover.

[0010] In some embodiments, the second pressure relief mechanism includes a pressing block, a first movable member and a first spring. The pressing block is mounted on the surface cover and is limitedly matched with the fixed block. The first movable member can be movably mounted on the fixed block. The first spring is mounted on the outer periphery of the first movable member and the two ends are respectively against the first movable member and the inner cover. The bottom of the first movable member is provided with a first plug that matches the second air outlet. The pressing block can be deformed under the action of an external force to drive the first movable member to move.

[0011] In some embodiments, the second pressure relief mechanism further includes a limiting kit, the limiting kit is sleeved on the fixed block, and the first movable member is sleeved on the limiting kit.

[0012] In some embodiments, the third pressure relief mechanism includes a second movable part and a second spring. The inner cover is provided with a second limiting groove which is respectively connected to the third air outlet and the exhaust cavity. The second movable part can be movably installed in the second limiting groove. One end of the second spring is sleeved on the outer periphery of the second movable part, and the other end is sleeved on the fixed block.

[0013] In some embodiments, a limiting protrusion is provided at the bottom of the fixed block, the second spring is sleeved on the outer periphery of the limiting protrusion, and a second plug that cooperates with the third air outlet to limit the position is provided at the bottom of the second movable member.

[0014] In some embodiments, the pot lid further includes a first sealing ring and a second sealing ring, wherein the first sealing ring is sleeved on the outer periphery of the surface cover and seals with the cover body, and the second sealing ring is sleeved on the outer periphery of the raised portion and limits the inner cover.

[0015] A kettle comprises a kettle body and the above-mentioned kettle cover. The upper end of the kettle body is provided with a kettle mouth. The kettle cover is limitedly matched with the kettle mouth and is detachable relative to the kettle body.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a kettle lid with a brand-new structure, in which three pressure relief mechanisms are arranged, and the three pressure relief mechanisms can work under different circumstances, which is safer than the traditional kettle lid with only one pressure relief mechanism. The specific working principle is: when boiling water, the air pressure in the kettle increases. Since only the first air outlet is in a normally open state, the hot steam generated will first be automatically and slowly discharged from the first pressure relief mechanism, so that the air pressure in the kettle will not increase sharply, and the first pressure relief mechanism plays a slow pressure relief role. Secondly, before the water is boiled and used, the second pressure relief mechanism can be manually operated to quickly discharge the high-temperature and high-pressure gas in the kettle, so that the air pressure in the kettle is sharply reduced, avoiding the high air pressure when opening the kettle, resulting in water spraying when the lid is opened, causing scalding and other safety accidents. Finally, the third pressure relief mechanism is an automatic pressure relief mechanism, which is a guarantee mechanism. When the first pressure relief mechanism fails and the electric control fails, the kettle continues to boil water, and the air pressure in the kettle continues to increase. When the air pressure increases to a certain value, the third pressure relief mechanism is automatically started, so that the third air outlet is opened, and then the air pressure in the kettle is discharged, avoiding safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a kettle cover according to one embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the pot cover from another angle shown;

[0020] Figure 3 for Figure 1 A schematic diagram of the top view of the pot cover shown;

[0021] Figure 4 for Figure 3 The sectional structural schematic diagram of the pot cover along the AA direction shown;

[0022] Figure 5 for Figure 4 A schematic diagram of the air flow direction of the kettle cover shown;

[0023] Figure 6 for Figure 1 The exploded structure diagram of the pot cover shown;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of a kettle according to one embodiment of the utility model;

[0025] Figure 8 for Figure 7 Schematic diagram of the partial explosion structure of the pot shown.

[0026] Figures 1 to 8 The figure marks in the figure are: 100-pot body; 200-pot cover; 100a-pot mouth; 1-cover body; 2-surface cover; 3-inner cover; 4-first pressure relief mechanism; 5-second pressure relief mechanism; 6-third pressure relief mechanism; 7-fixing block; 8-first sealing ring; 9-second sealing ring; 10-exhaust cavity; 11-protrusion; 21-exhaust hole; 31-first air outlet hole; 32-second air outlet hole; 33-third air outlet hole; 34-first limiting groove; 35-second limiting groove; 41-breathable membrane; 42-pressing block; 51-pressing block; 52-first movable part; 53-first spring; 54-limiting kit; 61-second movable part; 62-second spring; 71-connecting hole; 72-limiting protrusion; 10a-first exhaust cavity; 10b-second exhaust cavity; 521-first plug; 611-second plug. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Figures 1 to 6 A kettle cover according to an embodiment of the utility model is schematically shown.

[0029] like Figures 1 to 6As shown, the pot lid includes a cover body 1, a surface cover 2, an inner cover 3, a first pressure relief mechanism 4, a second pressure relief mechanism 5 and a third pressure relief mechanism 6. The cover body 1 is formed with a protrusion 11, the inner cover 3 is sleeved on the outer periphery of the protrusion 11, the surface cover 2 is sleeved on the cover body 1 and an exhaust cavity 10 for gas exhaust is formed between the surface cover 2 and the protrusion 11, an exhaust hole 21 connected with the exhaust cavity 10 is provided on the surface cover 2, the first pressure relief mechanism 4, the second pressure relief mechanism 5 and the third pressure relief mechanism 6 are installed on the inner cover 3, and the bottom of the inner cover 3 is provided with a first air outlet 31, a second air outlet 32 ​​and a third air outlet 33 corresponding to the first pressure relief mechanism 4, the second pressure relief mechanism 5 and the third pressure relief mechanism 6 respectively.

[0030] In this embodiment, the first pressure relief mechanism 4 is a slow pressure relief mechanism, the second pressure relief mechanism 5 is a manual quick pressure relief mechanism, and the third pressure relief mechanism 6 is an automatic pressure relief mechanism.

[0031] The first pressure relief mechanism 4 includes a breathable membrane 41 . The inner cover 3 is formed with a first limiting groove 34 which is respectively connected with the first air outlet 31 and the exhaust cavity 10 . The breathable membrane 41 is installed in the first limiting groove 34 .

[0032] The first pressure relief mechanism 4 further includes a pressing block 42 , which is limitedly matched with the first limiting groove 34 and can press the breathable membrane 41 against the bottom of the first limiting groove 34 , and the upper end of the pressing block 42 abuts against the bottom of the protrusion 11 .

[0033] The pot cover 200 further includes a fixing block 7 , which is sleeved on the raised portion 11 and fixedly connected to the inner cover 3 .

[0034] The second pressure relief mechanism 5 includes a pressing block 51, a first movable part 52 and a first spring 53. The pressing block 51 is mounted on the surface cover 2 and is limitedly matched with the fixed block 7. The first movable part 52 can be movably mounted on the fixed block 7. The first spring 53 is mounted on the outer periphery of the first movable part 52 and the two ends are respectively against the first movable part 52 and the inner cover 3. The bottom of the first movable part 52 is provided with a first plug 521 matched with the second air outlet 32. The pressing block 51 can be deformed under the action of external force to drive the first movable part 52 to move.

[0035] The second pressure relief mechanism 5 further includes a limiting kit 54 . The limiting kit 54 is sleeved on the fixing block 7 , and the first movable member 52 is sleeved on the limiting kit 54 .

[0036] The third pressure relief mechanism 6 includes a second movable part 61 and a second spring 62. The inner cover 3 is provided with a second limiting groove 35 which is respectively connected with the third air outlet 33 and the exhaust cavity 10. The second movable part 61 can be movably installed in the second limiting groove 35. One end of the second spring 62 is sleeved on the outer periphery of the second movable part 61, and the other end is sleeved on the fixed block 7.

[0037] Preferably, the first movable member 52 and the second movable member 61 are columnar members.

[0038] A limiting protrusion 72 is provided at the bottom of the fixed block 7 , and the second spring 62 is sleeved on the outer periphery of the limiting protrusion 72 . A second plug 611 which is limitedly matched with the third air outlet 33 is provided at the bottom of the second movable member 61 .

[0039] The pot cover 200 further includes a first sealing ring 8 and a second sealing ring 9. The first sealing ring 8 is mounted on the outer periphery of the surface cover 2 and is sealed with the cover body 1. The second sealing ring 9 is mounted on the outer periphery of the raised portion 11 and is limitedly matched with the inner cover 3. The first sealing ring 8 and the second sealing ring 9 are preferably silicone rings.

[0040] Therefore, the utility model provides a kettle cover 200 with a completely new structure. Three pressure relief mechanisms are arranged inside the kettle cover 200. The three pressure relief mechanisms can work in different situations. Compared with the traditional kettle cover 200 with only one pressure relief mechanism, the kettle cover 200 is safer.

[0041] The specific working principle is:

[0042] When boiling water, the air pressure in the kettle increases. Since only the first air outlet 31 is normally open, the hot steam generated will first be automatically and slowly discharged from the breathable membrane 41 of the first pressure relief mechanism 4, so that the air pressure in the kettle will not increase sharply. The first pressure relief mechanism 4 plays a role of slow pressure relief.

[0043] Secondly, before the water is boiled and used, the second pressure relief mechanism 5 can be manually operated, that is, the pressing block 51 is pressed to drive the first movable member 52 to move downward, and the first plug 521 is away from the inner cover 3, so that the second air outlet 32 ​​is opened, and the high-temperature and high-pressure gas in the kettle is quickly discharged, so that the air pressure in the kettle is sharply reduced, and the high air pressure when the kettle is opened is avoided, resulting in water spraying when the lid is opened, causing scalding and other safety accidents. Releasing the pressing block 51 can achieve automatic reset and re-block the second air outlet 32.

[0044] Finally, the third pressure relief mechanism 6 is an automatic pressure relief mechanism, which is a safeguard mechanism. When the first pressure relief mechanism 4 fails and the electric control system of the kettle fails, the kettle continues to boil water, and the air pressure in the kettle continues to increase. When the air pressure increases to a certain value, the third pressure relief mechanism 6 automatically starts, and the air pressure pushes the second movable member 61 to lift up, compressing the second spring 62, so that the third air outlet 33 opens, and then discharges the air pressure in the kettle to avoid safety accidents. After the air pressure is reduced, the second plug 611 automatically resets under the action of the second spring 62 to re-block the third air outlet 33.

[0045] Figures 6-7 A kettle according to an embodiment of the present invention is schematically shown.

[0046] like Figures 6-7As shown, the kettle includes a kettle body 100 and the above-mentioned kettle cover 200. The upper end of the kettle body 100 is provided with a kettle mouth 100a. The kettle cover 200 is limitedly matched with the kettle mouth 100a and is detachable relative to the kettle body 100.

[0047] A limiting cavity is formed between the inner cover 3 of the pot lid 200 and the cover body 1, and the inner wall of the pot mouth 100a is provided with a limiting convex ring. The outer periphery of the inner cover 3 is formed with a groove-type limiting structure which cooperates with the limiting convex ring, and cooperates with the second sealing ring 9 to realize a detachable connection and ensure the sealing after assembly.

[0048] In addition, the kettle of this embodiment may also include an inner pot, a heating element, a base, an electrical socket and other structures, which are existing technologies and will not be explained in detail here.

[0049] The kettle of the utility model uses the kettle cover 200, which is highly safe and convenient to use.

[0050] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A pot cover, characterized in that: The invention comprises a cover body (1), a front cover (2), an inner cover (3), a first pressure relief mechanism (4), a second pressure relief mechanism (5) and a third pressure relief mechanism (6); the cover body (1) is formed with a protrusion (11); the inner cover (3) is fitted on the outer periphery of the protrusion (11); the front cover (2) is fitted on the cover body (1) and an exhaust cavity (10) for exhausting gas is formed between the front cover (2) and the protrusion (11); an exhaust hole (21) connected to the exhaust cavity (10) is provided on the front cover (2); the first pressure relief mechanism (4), the second pressure relief mechanism (5) and the third pressure relief mechanism (6) are installed on the inner cover (3); and the bottom of the inner cover (3) is provided with a first exhaust hole (31), a second exhaust hole (32) and a third exhaust hole (33) corresponding to the first pressure relief mechanism (4), the second pressure relief mechanism (5) and the third pressure relief mechanism (6), respectively.

2. The pot cover according to claim 1, characterized in that: The first pressure relief mechanism (4) comprises a breathable membrane (41), the inner cover (3) is formed with a first limiting groove (34) respectively connected to the first air outlet (31) and the exhaust cavity (10), and the breathable membrane (41) is installed in the first limiting groove (34).

3. The pot cover according to claim 2, characterized in that: The first pressure relief mechanism (4) further comprises a pressing block (42), the pressing block (42) being in limited cooperation with the first limiting groove (34) and capable of pressing the breathable membrane (41) against the bottom of the first limiting groove (34), and the upper end of the pressing block (42) being in contact with the bottom of the raised portion (11).

4. The pot cover according to claim 1, characterized in that: It also comprises a fixing block (7), wherein the fixing block (7) is sleeved on the raised portion (11) and fixedly connected to the inner cover (3).

5. The pot cover according to claim 4, characterized in that: The second pressure relief mechanism (5) comprises a pressing block (51), a first movable member (52) and a first spring (53); the pressing block (51) is mounted on the surface cover (2) and is limitedly matched with the fixed block (7); the first movable member (52) is movably mounted on the fixed block (7); the first spring (53) is mounted on the outer periphery of the first movable member (52) and its two ends are respectively against the first movable member (52) and the inner cover (3); a first plug (521) matched with the second air outlet (32) is provided at the bottom of the first movable member (52); the pressing block (51) can be deformed under the action of an external force to drive the first movable member (52) to move.

6. The pot cover according to claim 5, characterized in that: The second pressure relief mechanism (5) further comprises a position limiting kit (54), wherein the position limiting kit (54) is sleeved on the fixed block (7), and the first movable part (52) is sleeved on the position limiting kit (54).

7. The pot cover according to claim 4, characterized in that: The third pressure relief mechanism (6) comprises a second movable member (61) and a second spring (62); the inner cover (3) is provided with a second limiting groove (35) which is respectively connected to the third air outlet (33) and the exhaust cavity (10); the second movable member (61) is movably mounted in the second limiting groove (35); one end of the second spring (62) is sleeved on the outer periphery of the second movable member (61), and the other end is sleeved on the fixed block (7).

8. The pot cover according to claim 7, characterized in that: A limiting protrusion (72) is provided at the bottom of the fixed block (7), the second spring (62) is sleeved on the outer periphery of the limiting protrusion (72), and a second plug (611) is provided at the bottom of the second movable member (61) for limiting the third air outlet (33).

9. The pot cover according to any one of claims 1 to 8, characterized in that: It also includes a first sealing ring (8) and a second sealing ring (9), wherein the first sealing ring (8) is mounted on the outer periphery of the surface cover (2) and is sealed with the cover body (1), and the second sealing ring (9) is mounted on the outer periphery of the raised portion (11) and is limitedly matched with the inner cover (3).

10. A kettle, comprising a kettle body (100), characterized in that: The invention further comprises a kettle cover (200) as claimed in any one of claims 1 to 9, wherein a kettle mouth (100a) is provided at the upper end of the kettle body (100), and the kettle cover (200) is limitedly matched with the kettle mouth (100a) and is detachable relative to the kettle body (100).

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