Cup cover with forced pressure relief function and electric heating container

Abstract

The utility model discloses a cup cover with a forced pressure relief function and an electric heating container, and relates to the technical field of liquid heating equipment, the cup cover comprises a cover body, and the cover body is provided with an exhaust end and an air inlet end; a gas gathering cavity is formed in the gas inlet end, and a pressure relief cavity is formed in the exhaust end; a separation cavity, a low-speed pressure relief channel, a forced pressure relief channel, a low-speed pressure relief assembly and a forced pressure relief assembly are further arranged in the cover body. A separation assembly is arranged between the pressure relief cavity and the gas gathering cavity and comprises at least one layer of separation plate arranged between the pressure relief cavity and the gas gathering cavity in a spaced mode, and a plurality of separation holes enabling the pressure relief cavity to be communicated with the gas gathering cavity are formed in the separation plate. The separating plate of the separating assembly is used for partially stopping splashing liquid which may block the exhaust channel of the low-speed pressure relief assembly so as to reduce the risk of failure of the low-speed pressure relief function, and hot air can smoothly pass through the separating plate through the separating holes in the separating plate so as to form gas-liquid separation.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid heating equipment technical field especially relates to a cup cover with forced pressure relief function and electric heating container. BACKGROUND

[0002] The current electric heating cup, when heating, the water in the cup body is heated to produce steam, resulting in the gas in the cup body increases, in the case of not taking off the cup cover, its pressure relief design is mainly two, the first is slow pressure relief, usually set waterproof air-permeable film (breath paper) at the air-permeable hole of the cup cover, after the gas in the cup body rises, slowly pressure relief through the characteristics of waterproof air-permeable film, the second is forced pressure relief, usually set pressure relief valve at the air-permeable hole of the cup cover, when the gas pressure in the cup body increases to a certain degree, the pressure relief valve is opened to force pressure relief.

[0003] When using the first pressure relief design, in the case of large temperature change, the air-permeable film is prone to insufficient pressure relief, resulting in the gas pressure in the cup body increases, there is the risk of explosion due to excessive gas pressure, when using the second pressure relief design, only when the gas pressure in the cup body increases to a specified degree, the pressure relief valve will open to force pressure relief, when the gas pressure is lower than the specified degree, it cannot effectively pressure relief, the user is easy to be sprayed hot water when opening the cup cover because there is still medium-high gas pressure in the cup body.

[0004] To this end, some improvers propose to combine the first pressure relief design with the second pressure relief design, such as the Chinese utility model "a cover assembly" with publication number CN220743975U, which comprises: a cover body, a first cavity with a lower opening is formed in the lower part of the cover body, a second cavity independent of the first cavity is formed in the upper part of the cover body, the upper part of the second cavity is open, a connecting channel communicating with the first cavity is formed in the bottom wall of the second cavity, and a waterproof breathable film is arranged in the connecting channel; a pressure relief channel is formed in the bottom wall of the second cavity, and the pressure relief channel communicates the first cavity and the second cavity; a pressure relief device is arranged in the second cavity, and the pressure relief device can open or close the pressure relief channel. The pressure relief device comprises a sealing member arranged in the second cavity and a compression spring, the sealing member abuts one end of the pressure relief channel communicating with the second cavity, one end of the compression spring abuts the sealing member, and the other end of the compression spring abuts the fixing member. By covering the connecting channel with the waterproof breathable film, the gas in the first cavity can flow to the second cavity through the waterproof breathable film, and then the gas is discharged from the exhaust hole of the cover sheet of the second cavity. Moreover, the waterproof breathable film can prevent the liquid in the first cavity from flowing out of the connecting channel to the second cavity, so that the cover assembly has the functions of breathable and waterproof. In addition, the cover assembly is also provided with a pressure relief device. In the case that the waterproof breathable film fails or the pressure relief amount is not enough to cause the gas pressure in the first cavity to be too large, the gas can drive the pressure relief device to open the pressure relief channel for pressure relief, ensuring safety.

[0005] However, when the pressure is relieved through the waterproof breathable film, the steam directly contacts the waterproof breathable film upward. Although the waterproof breathable film can limit the passage of water, when the electric heating cup is used to heat milk, tea or other liquids that may splash (when boiling), the liquid that blocks the waterproof breathable film cannot be limited during the heating process, which may eventually lead to a decrease in the pressure relief effect of the waterproof breathable film, and the only way to relieve pressure is to rely on the forced pressure relief device. Utility model content

[0006] The utility model aims to provide a cup cover and electric heating container with forced pressure relief function, which can effectively avoid the failure of slow pressure relief function under the condition of slow pressure relief and forced pressure relief function.

[0007] To achieve the above object, the utility model provides the following technical scheme: a cup cover with forced pressure relief function, the cover body is used for covering the cup mouth of the external electric heating container, the cover body has the exhaust end and the air inlet end corresponding with the cup mouth of the external electric heating container, the air inlet end is formed with the gas gathering cavity, the gas gathering cavity has the air inlet communicating with the cup mouth, the exhaust end is formed with the pressure relief cavity, the pressure relief cavity has the exhaust port communicating with the cup mouth outside, the cover body still has the separation cavity between the pressure relief cavity and the gas gathering cavity, the cover body is provided with the slow pressure relief channel and the forced pressure relief channel, the cover body is provided with the slow pressure relief assembly corresponding with the slow pressure relief channel, the cover body is provided with the forced pressure relief assembly corresponding with the forced pressure relief channel, the forced pressure relief assembly is used for opening or closing the forced pressure relief channel, the separation assembly is arranged between the pressure relief cavity and the gas gathering cavity, and the separation assembly includes at least one separation plate arranged between the pressure relief cavity and the gas gathering cavity, and the separation plate has a plurality of separation holes for communicating the pressure relief cavity and the gas gathering cavity.

[0008] As a further scheme of the utility model: the slow pressure relief assembly includes a waterproof air-permeable membrane arranged in the slow pressure relief channel.

[0009] As a further scheme of the utility model: the forced pressure relief assembly includes a sealing plug and a pressure limiting spring arranged in the pressure relief cavity, the sealing plug abuts at one end of the forced pressure relief channel, the forced pressure relief assembly further includes a connecting piece connected to the pressure relief cavity, one end of the pressure limiting spring abuts the connecting piece, and the other end of the pressure limiting spring abuts the sealing plug.

[0010] As a further scheme of the utility model: the separation cavity is provided with a partition plate, the partition plate surrounds the other end of the forced pressure relief channel, and extends towards the gas gathering cavity.

[0011] As a further scheme of the utility model: the separation assembly includes a plurality of separation plates, the plurality of separation plates are arranged in a stack, and a layer separation buffer space is formed between adjacent separation plates.

[0012] As a further scheme of the utility model: the separation holes of adjacent separation plates are arranged in a staggered manner in the stacking direction.

[0013] The utility model further provides the following technical scheme: an electric heating container including the cup cover with forced pressure relief function.

[0014] Compared with the prior art, the utility model has the advantages that: in the case of having slow pressure relief and forced pressure relief functions, the separation plates of the separation assembly can partially resist the splashing liquid that may block the exhaust channel of the slow pressure relief assembly, thereby reducing the risk of slow pressure relief function failure, and the separation holes in the separation plates allow hot gas to pass through the separation plates smoothly, thereby forming gas-liquid separation.

[0015] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Fig. 1 is a structural perspective view of the cup cover of the present application;

[0018] Fig. 2 is a structural sectional view of the cup cover of the present application;

[0019] Fig. 3 is a structural sectional view of the electric heating container with the cup cover of the present application.

[0020] The corresponding reference signs in the drawings are explained as follows:

[0021] Liquid storage container-1, electric heating element-2, cup mouth-3, cover body-4,

[0022] Exhaust end-41, pressure relief cavity-411, exhaust port-412,

[0023] Air inlet end-42, gas accumulation cavity-421, air inlet-422,

[0024] Separation cavity-43,

[0025] Slow pressure relief channel-44,

[0026] Forced pressure relief channel-45,

[0027] Slow pressure relief assembly-46, waterproof and breathable membrane-461,

[0028] Forced pressure relief assembly-47, sealing plug-471, pressure limiting spring-472, connecting piece-473,

[0029] Separation assembly-48, separation plate-481, separation hole-482,

[0030] Isolation plate-49. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Please refer to Figs. 1-3 A cup cover with forced pressure relief function, comprising a cover body 4 used for covering the cup opening of an external electric heating container, the cover body 4 has an exhaust end 41 and an air inlet end 42 corresponding to the cup opening of the external electric heating container.

[0033] An air gathering cavity 421 is formed on the air inlet end 42, and the air gathering cavity 421 has an air inlet 422 in communication with the cup opening. An exhaust cavity 411 is formed on the exhaust end 41, and the exhaust cavity 411 has an exhaust port 412 in communication with the outside of the cup opening. The cover body 4 further has a separation cavity 43 between the exhaust cavity 411 and the air gathering cavity 421.

[0034] The cover body 4 is provided with a slow pressure relief channel 44 for connecting the exhaust cavity 411 and the separation cavity 43, and a forced pressure relief channel 45 for connecting the exhaust cavity 411 and the separation cavity 43. The cover body 4 is provided with a slow pressure relief assembly 46 corresponding to the slow pressure relief channel 44, and the cover body 4 is provided with a forced pressure relief assembly 47 corresponding to the forced pressure relief channel 45, and the forced pressure relief assembly 47 is used for opening or closing the forced pressure relief channel 45.

[0035] A separation assembly 48 is arranged between the exhaust cavity 411 and the air gathering cavity 421, and the separation assembly 48 comprises at least one separation plate 481 arranged between the exhaust cavity 411 and the air gathering cavity 421, and the separation plate 481 has a plurality of separation holes 482 for connecting the exhaust cavity 411 and the air gathering cavity 421.

[0036] In the case of having slow pressure relief and forced pressure relief functions, the separation plate 481 of the separation assembly can partially resist the splashing liquid that may block the exhaust channel of the slow pressure relief assembly, so as to reduce the risk of failure of the slow pressure relief function, and the separation holes 482 on the separation plate can make the hot gas pass through the separation plate smoothly, so as to form gas-liquid separation.

[0037] As Fig. 2 shown, in some embodiments, the exhaust end 41 and the air inlet end 42 are arranged in an up-down manner, and the exhaust end 41 is the upper end of the cover body 4.

[0038] The cover body 4 and the cup opening of the external electric heating container can be detachably connected, for example, the inner side of the cup opening has an internal thread, and the outer side of the cover body 4 has a corresponding external thread.

[0039] In some embodiments, the slow pressure relief assembly 46 comprises a waterproof air permeable membrane 461 arranged in the slow pressure relief channel 44.

[0040] In some embodiments, the forced pressure relief assembly 47 comprises a sealing plug 471 arranged in the pressure relief cavity 411 and abutting against one end of the forced pressure relief channel 45, and a pressure limiting spring 472 connected to the connecting piece 473 in the pressure relief cavity 411, one end of the pressure limiting spring 472 abutting against the connecting piece 473, and the other end of the pressure limiting spring 472 abutting against the sealing plug 471.

[0041] The elastic force of the pressure limiting spring 472 can be selected according to actual needs, so as to correspondingly open the sealing plug 471 to block the forced pressure relief channel 45 when the gas pressure in the external electric heating container reaches a specified pressure threshold, and forced pressure relief is formed.

[0042] In the embodiment, the slow pressure relief is performed by the waterproof air permeable membrane 461, and the forced pressure relief is performed by the combination of the pressure limiting spring 472 and the sealing plug 471. On the one hand, the waterproof air permeable membrane 461 can perform waterproof exhaust, that is, liquid can be prevented from being discharged from the slow pressure relief channel 44 during exhaust, and the use experience is better. On the other hand, when the waterproof air permeable membrane 461 fails or the exhaust volume is insufficient to cause the gas pressure to increase, forced pressure relief can be performed, thereby effectively ensuring the safety of use.

[0043] In some embodiments, the separation cavity 43 is provided with a separation plate 49, which is arranged around the other end of the forced pressure relief channel 45 and extends towards the gas gathering cavity 421.

[0044] In some embodiments, the separation assembly 48 comprises a plurality of separation plates (not shown), which are arranged in a stack and form layer separation buffer spaces between adjacent separation plates.

[0045] Preferably, the separation holes of adjacent separation plates are arranged in a staggered manner in the stacking direction, and the protection effect of the slow pressure relief assembly is better.

[0046] In the embodiment, an electric heating container comprises the cup cover with the forced pressure relief function according to any one of the above embodiments. The electric heating container comprises a liquid storage container 1 and an electric heating element 2 for heating the liquid storage container 1. The liquid storage container 1 has a cup opening 3, and a cover body 4 is arranged on the cup opening 3. In the case of having the slow pressure relief and forced pressure relief functions, the separation plates of the separation assembly can partially resist the splashing liquid that may block the exhaust channel of the slow pressure relief assembly, so as to reduce the risk of failure of the slow pressure relief function, and the hot gas can pass through the separation plates through the separation holes on the separation plates, so as to form gas-liquid separation.

[0047] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A cup lid having a forced pressure relief function, characterized by, The cup cover includes a cover body arranged at a cup opening of an external electric heating container, the cover body has an exhaust end and an air inlet end corresponding to the cup opening of the external electric heating container; An air collection cavity is formed on the air inlet end, and the air collection cavity has an air inlet opening in communication with the cup opening, An exhaust cavity is formed on the exhaust end, and the exhaust cavity has an exhaust opening in communication with the outside of the cup opening; The cover body further has a separation cavity between the exhaust cavity and the air collection cavity; The cover body is provided with a slow pressure relief channel for connecting the exhaust cavity and the separation cavity, and a forced pressure relief channel for connecting the exhaust cavity and the separation cavity, the cover body is provided with a slow pressure relief assembly corresponding to the slow pressure relief channel, and the cover body is provided with a forced pressure relief assembly corresponding to the forced pressure relief channel, the forced pressure relief assembly is used to open or close the forced pressure relief channel; A separation assembly is arranged between the exhaust cavity and the air collection cavity, the separation assembly includes at least one separation plate arranged between the exhaust cavity and the air collection cavity, and the separation plate has a plurality of separation holes for connecting the exhaust cavity and the air collection cavity.

2. The cup lid with a forced pressure relief function according to claim 1, characterized in that, The slow pressure relief assembly includes a waterproof and air-permeable film arranged in the slow pressure relief channel.

3. The cup lid with a forced pressure relief function according to claim 1 or 2, characterized in that, The forced pressure relief assembly includes a sealing plug arranged in the exhaust cavity and a pressure limiting spring, the sealing plug abuts at one end of the forced pressure relief channel, The forced pressure relief assembly further includes a connecting piece connected to the exhaust cavity, one end of the pressure limiting spring abuts the connecting piece, and the other end of the pressure limiting spring abuts the sealing plug.

4. The cup lid with a forced pressure relief function according to claim 1, characterized in that, The separation cavity is provided with a separation plate, the separation plate surrounds the other end of the forced pressure relief channel, and extends in the direction of the air collection cavity.

5. The cup lid with a forced pressure relief function according to claim 1, characterized in that, The separation assembly includes a plurality of separation plates, the plurality of separation plates are arranged in a stack, and layer separation buffer spaces are formed between adjacent separation plates.

6. The cup lid with a forced pressure relief function according to claim 5, characterized in that, The separation holes of adjacent separation plates are arranged in a staggered manner in the stacking direction.

7. An electrically heated vessel characterized in that The cup cover with the forced pressure relief function of any one of claims 1-6.

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