CN214058496U

CN214058496U - Take bottle lid and heating container of leak protection exhaust function

Info

Publication number: CN214058496U
Application number: CN202022291706.1U
Authority: CN
Inventors: 李前荣
Original assignee: Guangdong Youfei Intelligent Technology Co ltd
Current assignee: Guangdong Youfei Intelligent Technology Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-08-27
Anticipated expiration: 2030-10-14

Abstract

The utility model relates to a small household appliances field specifically is a take bottle lid of leak protection exhaust function, include: the top cover is provided with an exhaust hole; an elastic water sealing member having an elastic sealing surface; the middle part of the bottom cover is provided with an exhaust structure which is matched with the top cover to form a middle cavity; the exhaust structure is provided with an exhaust channel which can be communicated with the exhaust hole; the elastic water sealing piece is fixed in the middle cavity, the exhaust structure is pressed against the elastic sealing surface, and the elastic sealing surface blocks the exhaust channel; when the pressure of the gas input into the exhaust channel is larger than the pressure formed by the elastic sealing surface facing the exhaust structure, the elastic sealing surface is opened, and the gas is exhausted through the exhaust channel, the middle cavity and the exhaust hole. The elastic water sealing piece is arranged in the bottle cap, and liquid plugging and leakage prevention are realized by utilizing the pressure formed by the deformation of the elastic water sealing piece; and the leakage-proof exhaust function of quick exhaust and quick plugging is realized by utilizing the characteristics that the shape of the deformed air bag is automatically adjusted along with the increase and decrease of pressure, the deformation recovery is quick, and the response is quick.

Description

Take bottle lid and heating container of leak protection exhaust function

Technical Field

The utility model relates to a small household appliances field, more specifically relates to a take bottle lid of leak protection exhaust function.

Background

In the development process of portable household appliances, the water volume heated by the automatic heating container at one time is moderate, the heating speed is high, the self volume is small, the carrying is easy, and more convenience is brought to the life of a user. Compared with the traditional open fire kettle or electric kettle, the automatic heating cup avoids the problem that the health is influenced and the waste is avoided due to the fact that hot water is stored for a long time or is repeatedly heated to cause water quality change caused by large heating water quantity at one time. And compared with a public kettle provided by a hotel or a drinking fountain in public places, the special heating water cup is more sanitary and reliable.

An important problem to be solved by the automatic heating water cup is the pressure discharge problem of steam when water boils, a large amount of steam can be generated when water boils, and if a container for boiling water is sealed, the pressure in a containing cavity can be increased sharply, so that potential safety hazards are caused. And can cause personal injury once accidentally released. In the prior art, no matter a traditional kettle for a stove, an electric kettle or even a pot with a cover can keep the cavity communicated with the outside through a spout or an exhaust port which is arranged to be communicated with the outside when being heated, so that the water vapor can be released quickly. The automatic heating water cup cannot be separated from the design at present, and in order to discharge steam generated after water is boiled in time, the automatic heating water cup requires a user to open a cover to heat water. But as a portable container, it is inconvenient and unsafe. Once the user forgets to open the cover to heat, danger is easily caused.

In the prior art, a design is that a cover or a certain blocking piece is required to be opened and placed at a specified position by a user through a chain protection switch, so that the cup can be heated after being communicated with the outside, but the problem is not fundamentally solved by the method; in the prior art, a spring stop sheet is arranged on a cover, but the pressure regulation of water plugging and exhaust does not have good effect, and the response of a spring is slow due to the sharp increase of water vapor after boiling, so that the pressure is usually discharged out of time. Therefore, in the process of improving the technology of the automatic heating water cup, a new technology is urgently needed to solve the problem of leakage prevention and pressure discharge during water heating.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art's at least one defect, provide a take leak protection exhaust function's bottle lid is used for replacing current container lid, solves the problem that traditional self-heating container need uncap and boil water, reaches safety zone lid boiling water and the technological effect that the leak protection was arranged and is pressed.

The utility model discloses the technical scheme who takes is, a take bottle lid of leak protection exhaust function, include: the top cover is provided with an exhaust hole; an elastic water sealing member having an elastic sealing surface; the middle part of the bottom cover is provided with an exhaust structure and is assembled with the top cover to form a middle cavity; the exhaust structure is provided with an exhaust channel which can be communicated with the exhaust hole; the elastic water sealing piece is arranged in the middle cavity, the exhaust structure is pressed against the elastic sealing surface, and the elastic sealing surface blocks the exhaust channel; when the gas pressure in the exhaust channel is greater than the pressure formed by the elastic sealing surface abutting against the exhaust structure, the elastic sealing surface is expanded, and the gas is exhausted.

The vent hole of top cap intercommunication middle cavity and external for the vapor that gets into middle cavity can directly be discharged through the vent hole. The bottom cover is arranged on the container with the opening, the lower surface of the bottom cover is connected with the containing cavity of the container, and water vapor and water in the containing cavity can enter the exhaust channel and are blocked by the elastic sealing surface. The air exhaust channel is of a slender structure, and the impact of water entering the air exhaust channel on the elastic sealing surface is far smaller than that of steam under the limitation of the narrow channel, so that the liquid in the cavity is completely blocked.

The height difference exists between the elastic sealing surface and the position of the exhaust structure in the middle cavity, after the elastic water sealing piece and the exhaust structure are installed, the exhaust structure presses against the elastic sealing surface, the pretightening force generated by the deformation of the elastic sealing surface seals the exhaust channel, and the deformation of the exhaust structure on the elastic sealing surface does not reach the deformation limit of the elastic sealing surface, so that when the air pressure in the exhaust channel is large enough, the elastic sealing surface can deform again, the sealing of the elastic sealing surface on the exhaust channel is broken, and water vapor enters the middle cavity and can be exhausted through the exhaust hole. Elasticity water sealing spare utilizes the elasticity characteristic of self, forms the leak protection water that realizes exhaust passage to exhaust passage's pressure through the deformation of first stage to realize the emission to gas through the re-deformation of second stage, this kind of deformation response is fast and have certain buffering, utilizes the elastic sealing face along with the increase and decrease automatically regulated of pressure, and the recovery is fast, and the deformability of response is fast weakens at pressure, just can block once more fast before the liquid flows, has realized the carminative effect of leak protection.

In the technical scheme, when the gas pressure in the exhaust channel is less than or equal to the pressure caused by abutting, the elastic sealing surface is abutted and pressed into a first arc-shaped structure by the exhaust structure; when the gas pressure in the exhaust passage is greater than the pressure caused by pressing, the gas presses the elastic sealing surface into a second arc-shaped structure, and the curvature of the second arc-shaped structure is greater than that of the first arc-shaped structure.

The upper part of the exhaust structure is higher than the elastic sealing surface, the upper opening of the exhaust channel is positioned in the upper part, when the bottom cover is matched with the elastic water sealing piece, the elastic sealing surface can completely cover the upper part of the exhaust structure due to the position height difference between the elastic sealing surface and the exhaust structure, the deformation of a first stage is generated according to the shape of the upper part of the exhaust structure, the elastic sealing surface can be attached to the position of the opening of the exhaust structure after being deformed, the communication port between the exhaust channel and the middle cavity is blocked, and the shape formed by the elastic sealing surface is changed into a first arc-shaped structure; when a large amount of vapor act on the elastic sealing surface under the first-stage deformation through the exhaust passage, and the pressure of the vapor is greater than the pressure of the elastic sealing surface to the exhaust passage, the elastic sealing surface deforms again to form a second arc-shaped structure, the elastic sealing surface is extruded again, the size of the elastic sealing surface is increased, the thickness of the elastic sealing surface is reduced, the impact of the vapor is relieved through the deformation of the elastic sealing surface, the gas is exhausted, and the curvature of the deformation shape of the elastic sealing surface is increased.

In the technical scheme, the exhaust structure is a tubular structure or a spherical crown structure and is arranged in the middle of the bottom cover.

The exhaust channel can adopt different shapes, the vertical tubular exhaust channel with the circular section is favorable for gas flowing and convenient processing, the section of the exhaust channel is a circle with the diameter of 1-5mm, the inlet of the exhaust channel is communicated with the lower part of the bottom cover and penetrates through the exhaust structure, and the top of the exhaust structure is provided with an outlet. When the exhaust structure is tubular, the outlet of the exhaust structure is easy to process to form a plane, and the annular plane has a good effect when an elastic sealing surface formed by matching the height is sealed; when the exhaust structure is a spherical crown structure, the processing difficulty is increased, but after the elastic sealing surface deforms, a certain cambered surface is formed between the top outlet and the periphery, the contact area with the elastic sealing surface is increased, and sealing can be better formed between the exhaust structure and the elastic sealing surface.

In the technical scheme, the elastic water sealing part is a silica gel part, in particular to an integrated part which is provided with a circular elastic sealing surface and is provided with an annular sleeving edge at the edge.

The elastic sealing surface needs to deform per se in the assembling and exhausting processes, when the elastic sealing surface is round in the process of fixing the elastic water sealing piece, the elastic sealing surface can generate tensile force on the peripheral edges when stressed in the middle, and the round design is beneficial to the uniform distribution of the tensile force, so that the stress concentration is avoided, and the exhaust structure is easier to seal; form annular cup joint limit and with elasticity water sealing spare design silica gel as an organic whole at its edge simultaneously, be the food security of make full use of silica gel, easy processing nature in for elasticity water sealing spare can directly cup joint on other mountings, and integrated into one piece structure has reduced the destroyed possibility in elasticity water sealing spare edge, makes the overall structure of elasticity water sealing spare firm more durable.

Among this technical scheme, be equipped with the fixed bolster that is used for fixed elasticity to seal water spare in the middle chamber, the fixed bolster includes: a fixed base; the annular support is arranged in the fixed base, and the elastic water sealing piece can be assembled on the annular support; a gas channel is formed between the annular support and the fixed base, and gas can pass through the fixed support through the gas channel; the elastic water sealing piece is arranged on the annular support, and the elastic sealing surface is communicated with the gas channel; and a deformation accommodating area of the elastic sealing surface is arranged in the annular support.

The fixed support is made of hard materials, so that the fixed base can be suitable for being matched with the top cover or the bottom cover in an installing mode. The fixed base and the annular support are two tubular bodies with one large tubular body and one small tubular body, the elastic water sealing piece is sleeved on the annular support, a gap exists between the two tubular bodies, and the gap forms a gas channel which is communicated with the elastic sealing surface. After the sealing of the elastic sealing surface and the exhaust structure is opened, gas flows into the middle cavity through the edge of the elastic sealing surface and a gas channel between the fixed base and the annular support and is exhausted through an exhaust port; the position of the exhaust structure is over against the deformation containing area in the middle of the annular support, and after the elastic water sealing piece is matched with the exhaust structure, the deformation part of the elastic sealing surface is positioned in the deformation containing area. When the elastic sealing surface is further deformed, the deformation containing area can limit the continuous deformation of the elastic sealing surface after the elastic sealing surface is deformed to a certain extent, the deformation resistance of the elastic sealing surface after reaching a certain deformation degree in the continuous deformation process is increased, and the elastic sealing surface water sealing part is protected and fixed.

In this technical scheme, the fixed bolster is independent part, and sets up on bottom or top cap, and independent fixed bolster shaping is simple, more is favorable to manual assembly's assembly line.

In this technical scheme, the fixed bolster sets up in the below of top cap, and with top cap integrated into one piece with fixed bolster and top cap integrated into one piece, is favorable to automatic equipment, through the one shot forming that moulds plastics, reduces the process of assembly, has promoted production speed.

In the technical scheme, the elastic water sealing piece is arranged below the annular support in a sleeved mode. Because the atress of elasticity water sealing spare comes from exhaust structure from lower to upper pressure, just can satisfy the fixed demand of elasticity water sealing spare through cup jointing, and the convenient dismantlement of mode that cup joints more is favorable to the maintenance and the replacement of this loss piece of elasticity water sealing spare.

In the technical scheme, the fixing bracket is arranged on the bottom cover in a buckling and/or screw connection mode.

A heating vessel comprising: the anti-leakage bottle comprises an open container with a heating function and a bottle cap with an anti-leakage exhaust function, wherein the bottle cap is movably arranged on the open container.

Compared with the prior art, the beneficial effects of the utility model are that: the elastic water sealing piece is arranged in the bottle cap, and the deformation of the elastic water sealing piece is utilized to form pressure, so that the leakage is prevented; and the characteristics of quick recovery and quick response are utilized to realize quick air exhaust and quick plugging by the deformation of the air-leakage-proof valve, which is automatically adjusted along with the increase and decrease of the pressure, so that the air-leakage-proof valve achieves the effect of air exhaust leakage prevention.

Drawings

Fig. 1 is a schematic view of the exhaust structure of the present invention in a tubular shape.

Fig. 2 is a schematic view of the exhaust structure of the present invention in a spherical crown shape.

Fig. 3 is a schematic view of the exhaust structure of the present invention in a spherical crown shape.

Fig. 4 is a schematic view of the top cover of the present invention.

Fig. 5 is a schematic view of the bottom cover of the present invention.

Reference numbers of fig. 1-5 illustrate: the sealing structure comprises a top cover 100, an exhaust hole 101, a bottom cover 200, an exhaust structure 210, an exhaust channel 211, an elastic water sealing piece 300, an elastic sealing surface 301, an annular sleeving edge 302, a fixing support 400, a fixing base 410, a gas channel 411, an annular support 420, a deformation accommodating area 421 and a sealing silica gel ring 500.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 3, the present embodiment is a bottle cap with leak-proof venting function, including: the top cover 100 is provided with an exhaust hole 101; the elastic water sealing member 300 has an elastic sealing surface 301; the middle part of the bottom cover 200 is provided with an exhaust structure 210 which is matched with the top cover 100 to form a middle cavity; the exhaust structure 210 is provided with an exhaust passage 211, and the exhaust passage 211 is communicated with the exhaust hole 101; the elastic water sealing piece 300 is fixed in the middle cavity, the exhaust structure 210 is pressed against the elastic sealing surface 301, and the elastic sealing surface 301 blocks the exhaust channel 211; when the pressure of the gas in the exhaust channel 211 is greater than the pressure of the resilient sealing surface 301 against the exhaust structure 210, the resilient sealing surface 301 is stretched and the gas is exhausted through the exhaust channel 211, the intermediate cavity and the exhaust holes 101. In the embodiment, as shown in fig. 4, the top cover 100 is an umbrella-shaped structure, the exhaust hole 101 is disposed in the center of the top cover 100, the edge of the top cover 100 is provided with an assembly edge of a wavy line, the top cover 100 is smaller than the bottom cover 200, and the top cover 100 is fixed on the bottom cover 200 in a snap-fit manner through the assembly edge; as shown in fig. 5, the bottom cover 200 is a circular cake-shaped structure, and the side surface of the bottom cover is provided with an installation position matched with the assembly edge, so that in the actual implementation process, an implementer can design the shapes of the top cover 100 and the bottom cover 200 into various shapes according to the requirements of appearance and actual needs, and the matching mode of the top cover 100 and the bottom cover 200 can be selected from various choices such as gluing, screws and the like.

The vent hole 101 of the top cover 100 is communicated with the middle cavity and the outside, so that the water vapor entering the middle cavity can be directly discharged through the top cover 100, the bottom cover 200 is used for being installed on a container with an opening, the lower surface of the bottom cover 200 is connected with the cavity of the container, and the cavity of the container is communicated with the middle cavity of the bottle cap through the vent channel 211 in the vent structure 210. Water vapour generated in the chamber can flow into the intermediate chamber via the vent passage 211.

The elastic sealing surface 301 of the elastic water sealing piece is pressed against the opening of the exhaust channel 211 communicated with the middle cavity, because the elastic sealing surface 301 deforms to generate pretightening force, and the exhaust channel 211 is of a slender structure and has a certain limiting effect on liquid, the liquid entering the exhaust channel 211 cannot exceed the pressure generated by the elastic sealing surface 301 on the opening of the exhaust channel 211, and the liquid cannot be poured out.

During the water boiling process, the pressure is suddenly increased due to the water vapor, a large amount of steam can be rapidly extruded into the exhaust channel 211, the pressure is far greater than the pressure applied by the liquid, so that the elastic sealing surface 301 can be deformed, after the elastic sealing surface 301 is deformed, the sealing of the elastic water sealing piece 300 on the exhaust structure 210 is broken, and the water vapor enters the middle cavity and can be exhausted through the exhaust hole 101.

The elastic water sealing member 300 utilizes the elastic characteristic of itself, realizes the water leakage prevention of the exhaust passage 211 through the pressure formed by the deformation in the first stage, and realizes the exhaust of the gas through the re-deformation in the second stage, and the deformation response is fast and timely. Utilize its increase and decrease automatically regulated along with pressure, it is fast to resume, and the deformability of response is fast weakens, just can block once more fast before the liquid flows out, has realized the effect of leak protection exhaust.

When the gas pressure of the exhaust channel 211 is less than or equal to the pressure formed by the elastic sealing surface pressing against the exhaust structure, the exhaust structure 210 presses the elastic sealing surface 301 into a first arc-shaped structure; when the gas pressure of the exhaust passage 211 is greater than the pressure formed by the elastic sealing surface abutting against the exhaust structure, the gas abuts against the elastic sealing surface 301 into a second arc-shaped structure, and the curvature of the second arc-shaped structure is greater than that of the first arc-shaped structure.

The position of the air exhaust structure 210 is higher than the position of the elastic sealing surface in the middle cavity, so when the bottom cover 200 is matched with the elastic water sealing piece 300, the elastic sealing surface 301 generates deformation in the first stage due to the height difference between the elastic sealing surface and the air exhaust structure 210, the position of the elastic sealing surface, which is attached to the opening of the air exhaust structure 210, generates deformation, the communication port between the air exhaust channel 211 and the middle cavity is blocked, and at this time, the elastic sealing surface 301 forms a first arc-shaped structure; when water vapor acts on the elastic sealing surface 301 deformed in the first stage through the exhaust passage 211, the elastic sealing surface 301 is deformed again to form a second arc-shaped structure, the elastic sealing surface is extruded again, becomes large and thin, the impact of the water vapor is relieved through self deformation, and the curvature of the elastic sealing surface becomes large.

The venting structure 210 is a tubular structure or a spherical crown structure and is disposed at the middle portion of the bottom cover 200.

The exhaust passage 211 can take different shapes, the vertical circular section of the exhaust passage 211 is used for facilitating the flow of gas and facilitating the processing, the section of the exhaust passage 211 is a circle with the diameter of 2mm, the inlet of the exhaust passage 211 is communicated with the lower part of the bottom cover 200, the middle part of the exhaust passage passes through the exhaust structure 210, and the top of the exhaust structure 210 is provided with an outlet. When the exhaust structure 210 is tubular, the outlet of the exhaust structure is easy to process to form a plane, and the plane has a good sealing effect on the elastic sealing surface 301 formed by the height difference; when the exhaust structure 210 is a spherical crown structure, the processing difficulty is increased, but after the elastic sealing surface 301 deforms, a certain cambered surface is formed between the top outlet and the periphery, and the elastic sealing surface 301 can be better sealed. As shown in fig. 1, in the present embodiment, a spherical crown structure is adopted. The elastic sealing surface 301 is circular, the edge of the upper surface of the elastic sealing surface is provided with an annular sleeving edge 302 which is perpendicular to the elastic sealing surface 301, and the elastic water sealing piece 300 is a silicone rubber piece.

The elastic sealing surface 301 needs to deform in the assembling and exhausting processes, when the elastic sealing surface 301 is round in the process of fixing the elastic water sealing piece 300, the elastic sealing surface can generate pulling force on the peripheral edges when the elastic sealing surface 301 is stressed in the middle, and the round design helps the pulling force to be uniformly distributed, so that stress concentration is avoided, and the elastic water sealing piece 300 is easier to fix; meanwhile, the annular sleeving edge 302 is formed at the edge of the elastic water sealing piece 300, the elastic water sealing piece 300 is designed into an integral silica gel, food safety of the silica gel is fully utilized, the elastic water sealing piece 300 can be directly sleeved on other fixing pieces, the possibility of edge damage is reduced by the integral structure, and the integral structure of the elastic water sealing piece 300 is more stable and durable.

A fixing bracket 400 installed in the middle cavity for fixing the elastic water sealing member 300, the fixing bracket 400 comprising: a fixed base 410; the annular support 420 is positioned in the fixed base 410, the shape of the cross section of the annular support 420 is matched with that of the elastic water sealing piece 300, and the side wall of the annular support 420 is connected with the fixed base 410 through a connecting sheet; a gas passage 411 exists between the ring support 420 and the fixed base 410 and gas can pass through the fixed bracket 400 through the gas passage 411; the elastic water sealing piece 300 is arranged on the annular support 420 and does not seal the gas channel 411 between the annular support 420 and the fixed base 410; the annular support 420 is provided with a deformation accommodation area 421 in the middle.

The fixing support is made of a hard material so that the fixing base 410 can be adapted to fit with the top cover 100 or the bottom cover 200, and the fixing base 410 can be firmly fixed on the top cover 100 or the bottom cover 200 by means of a snap or screw connection. The annular support 420 is surrounded by the fixed base 410, the fixed base 410 and the annular support 420 are two tubular bodies with one large and one small, the elastic water sealing piece 300 is sleeved on the annular support 420, and a gas channel 411 between the two tubular bodies is communicated with the elastic sealing surface 301 to form a gas flow guide channel. After the sealing between the elastic sealing surface 301 and the exhaust structure 210 is opened, the gas flows into the middle cavity through the edge of the elastic sealing surface 301, the gas channel 411 between the fixed base 410 and the annular support 420, and is exhausted through the exhaust port; the vent structure 210 is located opposite to the inner space of the annular support 420, i.e. the deformation accommodation area 421, and after the elastic water sealing member 300 is engaged with the vent structure 210, the deformed part of the elastic sealing surface 301 is located in the deformation accommodation area 421. When the elastic sealing surface 301 is further deformed, the deformation accommodating area 421 limits the continuous deformation after a certain deformation, so as to increase the deformation resistance after reaching a certain deformation degree in the continuous deformation process of the elastic sealing surface 301, thereby having the function of protecting and fixing the elastic water sealing member 300. As shown in fig. 1, in the present embodiment, the fixing base 410 is fixed on the bottom cover 200 by screw connection, and in practical implementation, an implementer may select various fixing methods to fix on the top cover 100 or the bottom cover 200. The fixing bracket 400 is a separate member and is mounted on the bottom cover 200 or the top cover 100. The independent fixing bracket 400 is simple to form and more beneficial to a production line of manual assembly.

The elastic water sealing member 300 is installed below the ring support 420 in a sleeved manner. Because the atress of elasticity water sealing spare 300 comes from exhaust structure 210 pressure from bottom to top, just can satisfy the fixed demand of elasticity water sealing spare 300 through cup jointing, and the convenient dismantlement of mode of cup jointing more is favorable to the maintenance and the replacement of this loss piece of elasticity water sealing spare 300. The fixing bracket 400 is mounted on the bottom cover 200 by means of a snap-fit connection.

Example 2

In this embodiment, a heating container includes: the anti-leakage bottle comprises an open container with a heating function and a bottle cap with an anti-leakage exhaust function, wherein the bottle cap is movably arranged on the open container. The bottle lid of area leak protection exhaust function includes: the top cover 100 is provided with an exhaust hole 101; the elastic water sealing member 300 has an elastic sealing surface 301; the middle part of the bottom cover 200 is provided with an exhaust structure 210 which is matched with the top cover 100 to form a middle cavity; the exhaust structure 210 is provided with an exhaust passage 211, and the exhaust passage 211 is communicated with the exhaust hole 101; the elastic water sealing piece 300 is fixed in the middle cavity, the exhaust structure 210 is pressed against the elastic sealing surface 301, and the elastic sealing surface 301 blocks the exhaust channel 211; when the gas pressure of the vent channel 211 is greater than the pressure of the resilient sealing surface 301 against the vent structure 210, the resilient sealing surface 301 is stretched and the gas is vented through the vent channel 211, the intermediate cavity, and the vent hole 101. In this embodiment, the top cover 100 is an umbrella-shaped structure, the exhaust holes 101 are disposed in the center of the top cover 100, the edge of the top cover 100 is provided with an assembly edge of a wavy line, the bottom cover 200 is larger than the top cover 100, and the top cover 100 is fixed on the bottom cover 200 in a buckling manner through the assembly edge; the bottom cover 200 is a round cake-shaped structure, and the side surface of the bottom cover is provided with an installation position matched with the assembly edge, so that in the actual implementation process, an implementer can design the shapes of the top cover 100 and the bottom cover 200 into various shapes according to the requirements of appearance and actual needs, and the matching mode can be selected from various choices such as gluing, screws and the like.

The elastic sealing surface 301 of the elastic water sealing piece is pressed against the opening of the exhaust channel 211 communicated with the middle cavity, and due to the pretightening force of the elastic sealing surface 301, and the exhaust channel 211 is of a slender structure and has a certain limiting effect on liquid, the liquid entering the exhaust channel 211 cannot exceed the pressure of the elastic sealing surface 301 on the opening of the exhaust channel 211, and the liquid cannot be poured out.

The exhaust passage 211 can take different shapes, the vertical circular section of the exhaust passage 211 is used for facilitating the flow of gas and facilitating the processing, the section of the exhaust passage 211 is a circle with the diameter of 4mm, the inlet of the exhaust passage 211 is communicated with the lower part of the bottom cover 200, the middle part of the exhaust passage passes through the exhaust structure 210, and the top of the exhaust structure 210 is provided with an outlet. When the exhaust structure 210 is tubular, the outlet of the exhaust structure is easy to process to form a plane, and the plane has a good sealing effect on the elastic sealing surface 301 formed by the height difference; when the exhaust structure 210 is a spherical crown structure, the processing difficulty is increased, but after the elastic sealing surface 301 deforms, a certain cambered surface is formed between the top outlet and the periphery, and the elastic sealing surface 301 can be better sealed. As shown in fig. 2, in the present embodiment, a tubular structure is employed.

The elastic sealing surface 301 is circular, the edge of the upper surface of the elastic sealing surface is provided with an annular sleeving edge 302 which is perpendicular to the elastic sealing surface 301, and the elastic water sealing piece 300 is a silicone rubber piece.

The fixing support is made of a hard material so that the fixing base 410 can be adapted to fit with the top cover 100 or the bottom cover 200, and the fixing base 410 can be firmly fixed on the top cover 100 or the bottom cover 200 by means of a snap or screw connection. The annular support 420 is surrounded by the fixed base 410, the fixed base 410 and the annular support 420 are two tubular bodies with one large and one small, the elastic water sealing piece 300 is sleeved on the annular support 420, and a gas channel 411 between the two tubular bodies is communicated with the elastic sealing surface 301 to form a gas flow guide channel. After the sealing between the elastic sealing surface 301 and the exhaust structure 210 is opened, the gas flows into the middle cavity through the edge of the elastic sealing surface 301, the gas channel 411 between the fixed base 410 and the annular support 420, and is exhausted through the exhaust port; the vent structure 210 is located opposite to the inner space of the annular support 420, i.e. the deformation accommodation area 421, and after the elastic water sealing member 300 is engaged with the vent structure 210, the deformed part of the elastic sealing surface 301 is located in the deformation accommodation area 421. When the elastic sealing surface 301 is further deformed, the deformation accommodating area 421 limits the continuous deformation after a certain deformation, so as to increase the deformation resistance after reaching a certain deformation degree in the continuous deformation process of the elastic sealing surface 301, thereby having the function of protecting and fixing the elastic water sealing member 300. As shown in fig. 1, in the present embodiment, the fixing base 410 is fixed on the bottom cover 200 by screw connection, and in practical implementation, an implementer may select various fixing methods to fix on the top cover 100 or the bottom cover 200. The fixing bracket 400 is disposed under the top cover 100 and is integrally formed with the top cover 100. With fixed bolster 400 and top cap 100 integrated into one piece, be favorable to automatic equipment, through the one shot forming that moulds plastics, reduce the process of assembly, promoted production speed.

The elastic water sealing member 300 is installed below the ring support 420 in a sleeved manner. Because the atress of elasticity water sealing spare 300 comes from exhaust structure 210 pressure from bottom to top, just can satisfy the fixed demand of elasticity water sealing spare 300 through cup jointing, and the convenient dismantlement of mode of cup jointing more is favorable to the maintenance and the replacement of this loss piece of elasticity water sealing spare 300. The fixing bracket 400 is mounted on the bottom cover 200 by means of screw coupling.

When a user heats water, the bottle cap is covered, the top cover 100 is kept upward, the exhaust hole 101 is not right for people, water vapor is continuously accumulated in the water heating process, after the water is boiled, a large amount of water vapor is generated before heating is stopped, the water vapor forces the elastic sealing surface 301 of the elastic water sealing piece 300 to deform through the exhaust channel 211, the exhaust channel 211 is communicated with the exhaust hole 101, and the water vapor flows into the containing cavity from the periphery of the elastic water sealing piece 300 through the gas channel 411 of the fixed support 400 and then is exhausted through the exhaust hole 101. As the pressure decreases, the elastic sealing surface 301 gradually reduces and deforms to restore the original shape, and the exhaust passage 211 is re-blocked, so that water cannot flow out.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The utility model provides a take bottle lid of leak protection exhausting function which characterized in that includes:

the top cover is provided with an exhaust hole;

an elastic water sealing member having an elastic sealing surface;

the middle part of the bottom cover is provided with an exhaust structure which is matched with the top cover to form a middle cavity;

the exhaust structure is provided with an exhaust channel which can be communicated with the exhaust hole;

the elastic water sealing piece is fixed in the middle cavity, the exhaust structure is pressed against the elastic sealing surface, and the elastic sealing surface blocks the exhaust channel;

when the gas pressure in the exhaust channel is greater than the pressure formed by the elastic sealing surface abutting against the exhaust structure, the elastic sealing surface is opened, and the gas is exhausted through the exhaust channel, the middle cavity and the exhaust hole.

2. The bottle cap with leak-proof venting function of claim 1, wherein when the gas pressure in the venting channel is less than or equal to the pressure formed by the elastic sealing surface pressing against the venting structure, the venting structure presses the elastic sealing surface into the first arc-shaped structure; when the gas pressure in the exhaust channel is greater than the pressure formed by the elastic sealing surface abutting against the exhaust structure, the gas abuts against the elastic sealing surface into a second arc-shaped structure, and the curvature of the second arc-shaped structure is greater than that of the first arc-shaped structure.

3. The bottle cap with leak-proof venting function as claimed in claim 1, wherein the venting structure is a tubular structure or a spherical crown structure and is disposed at a middle portion of the bottom cap.

4. A bottle cap with leakage-proof and venting functions as claimed in claim 1, wherein the elastic sealing member is a silicone member, in particular a one-piece member having a circular elastic sealing surface and an annular flange at its edge.

5. The bottle cap with the leakage-proof and venting function as claimed in any one of claims 1 to 4, wherein a fixing bracket for fixing the elastic water sealing member is provided in the middle chamber, the fixing bracket comprising:

a fixed base;

the annular support is arranged in the fixed base, and the elastic water sealing piece can be assembled on the annular support;

a gas channel is formed between the annular support and the fixed base, and gas can pass through the fixed support through the gas channel;

the elastic water sealing piece is arranged on the annular support, and the elastic sealing surface is communicated with the gas channel;

and a deformation accommodating area of the elastic sealing surface is arranged in the annular support.

6. The bottle cap with leak-proof venting function as claimed in claim 5, wherein the fixing bracket is a separate member and is provided on the lower cap or the upper cap.

7. The bottle cap with leak-proof venting function as claimed in claim 5, wherein the fixing bracket is disposed below the top cap and is integrally formed with the top cap.

8. A bottle cap with leakage-proof and venting functions as claimed in claim 5, wherein the elastic water sealing member is installed under the annular support in a sleeved manner.

9. A bottle cap with leakage-proof and venting functions as claimed in claim 6, wherein the fixing bracket is mounted on the bottom cap by means of a snap and/or screw connection.

10. A heating vessel, comprising: an open container with heating function and a bottle cap with anti-leakage and venting function as claimed in any one of claims 1 to 9, said bottle cap being movably mounted on said open container.