Anti-pollution bottle cap

The disclosure provides an anti-pollution bottle cap comprising a cap body, a liquid drainage one-way valve and an air intake one-way valve. A liquid drainage hole and an air intake hole are disposed in the cap body and both communicated with an inside of the cap body. The liquid drainage one-way valve is disposed in a space enclosed by the cap body. The liquid drainage hole is blocked by the liquid drainage one-way valve in one way so as to be opened during toppling operation. The air intake one-way valve is disposed in the space enclosed by the cap body. The air intake hole is blocked by the air intake one-way valve in one way so as to be closed during toppling operation. In application, the anti-pollution bottle cap will be installed on a bottle for matched use, so that a user can normally drain liquid through the liquid drainage hole only by squeezing the bottle. When use is stopped, through blockage of the liquid drainage one-way valve to the liquid drainage hole, adherends on the body surface of the user are prevented from entering the bottle, contents will not be polluted, and the problem that an existing bottle cap is likely to pollute contents is practically solved.

TECHNICAL FIELD

The disclosure relates to the technical field of bottle caps, in particular to an anti-pollution bottle cap.

RELATED ART

Using a bottle to contain liquid is a common storage method. For example, a plurality of cosmetics are liquid products, and after the cosmetics are contained by the bottle, the liquid can be extruded for use only by squeezing the bottle. However, in the application process, a liquid drainage hole of a bottle cap may be in contact with the application part of a user. After use is finished, adherends on the body surface of the user may enter the bottle through the liquid drainage hole, thereby polluting contents. Therefore, a technical solution capable of solving the problem is urgently needed.

SUMMARY

The disclosure aims to provide an anti-pollution bottle cap so as to solve the problem that an existing bottle cap is likely to pollute contents.

In order to solve the technical problem, the disclosure provides an anti-pollution bottle cap. The anti-pollution bottle cap comprises a cap body, a liquid drainage one-way valve and an air intake one-way valve. A liquid drainage hole and an air intake hole are disposed in the cap body and both communicated with an inside of the cap body. The liquid drainage one-way is disposed in a space enclosed by the cap body. The liquid drainage hole is blocked by the liquid drainage one-way valve in one way so as to be opened during toppling operation. The air intake one-way valve is disposed in the space enclosed by the cap body. The air intake hole is blocked by the air intake one-way valve in one way so as to be closed during toppling operation.

In one embodiment, a liquid drainage cavity and an air intake cavity are disposed in the cap body. The liquid drainage cavity is communicated with the liquid drainage hole. The air intake cavity is communicated with the air intake hole. The anti-pollution bottle cap further comprises a support. The support comprises a liquid drainage frame body and an air intake frame body. The liquid drainage frame body is embedded into the liquid drainage cavity in an enclosing and blocking mode. The liquid drainage frame body is provided with a liquid guide hole. The liquid guide hole is communicated with the liquid drainage cavity. The liquid guide hole is closed by the liquid drainage one-way valve in one way. The air intake frame body is embedded into the air intake cavity in an enclosing and blocking mode. The air intake frame body is provided with an air guide hole. The air guide hole is communicated with the air intake cavity. The air guide hole is closed by the air intake one-way valve in one way.

In one embodiment, the liquid drainage one-way valve comprises a liquid drainage blocking core and a flexible rubber separation blade. One end of the liquid drainage blocking core abuts against an inner top wall of the cap body. The other end of the liquid drainage blocking core penetrates into the liquid guide hole. A diameter of the liquid drainage blocking core is smaller than a hole diameter of the liquid guide hole. The flexible rubber separation blade is disposed in the liquid drainage cavity. The flexible rubber separation blade is disposed around the liquid drainage blocking core in a circumferential direction by a circle. The flexible rubber separation blade extends out of a circumferential direction of the liquid guide hole so as to block communication between the liquid guide hole and the liquid drainage hole. The flexible rubber separation blade is bent under pressure for communicating the liquid guide hole with the liquid drainage hole.

In one embodiment, the air intake one-way valve comprises a guide column and a sealing cover. The guide column and the sealing cover are connected with each other. A diameter of the guide column is smaller than a hole diameter of the air guide hole. The guide column penetrates through the air guide hole. Stop blocks are disposed at portions, in the air intake cavity, of the guide column. The stop blocks extend towards an outside of a circumferential direction of the air guide hole. The stop blocks are configured to abut against the air intake frame body to prevent the air intake one-way valve from separating. The sealing cover is disposed outside the air intake cavity. The sealing cover is separated from the air intake frame body. The sealing cover can be stressed and deformed in toppling operation so as to close the air guide hole.

In one embodiment, a liquid drainage cavity is disposed in the cap body and communicated with the liquid drainage hole. The anti-pollution bottle cap further comprises a liquid drainage frame body. The liquid drainage frame body is embedded into the liquid drainage cavity in an enclosing and blocking mode. The liquid drainage frame body is provided with a liquid guide hole. The liquid guide hole is communicated with the liquid drainage cavity. The liquid drainage one-way valve comprises a liquid drainage blocking core and a flexible rubber separation blade. One end of the liquid drainage blocking core abuts against an inner top wall of the cap body. The other end of the liquid drainage blocking core penetrates into the liquid guide hole. A diameter of the liquid drainage blocking core is smaller than a hole diameter of the liquid guide hole. The flexible rubber separation blade is disposed in the liquid drainage cavity. The flexible rubber separation blade is disposed around the liquid drainage blocking core in a circumferential direction by a circle. The flexible rubber separation blade extends out of a circumferential direction of the liquid guide hole so as to block communication between the liquid guide hole and the liquid drainage hole. The flexible rubber separation blade is bent under pressure for communicating the liquid guide hole with the liquid drainage hole.

In one embodiment, an air intake cavity is disposed in the cap body and communicated with the air intake hole. The anti-pollution bottle cap further comprises an air intake frame body. The air intake frame body is embedded into the air intake cavity in an enclosing and blocking mode. The air intake frame body is provided with an air guide hole. The air guide hole is communicated with the air intake cavity. The air intake one-way valve comprises a guide column and a sealing cover. The guide column and the sealing cover are connected with each other. A diameter of the guide column is smaller than a hole diameter of the air guide hole. The guide column penetrates through the air guide hole. Stop blocks are disposed at portions, in the air intake cavity, of the guide column. The stop blocks extend towards an outside of a circumferential direction of the air guide hole. The stop blocks are configured to abut against the air intake frame body to prevent the air intake one-way valve from separating. The sealing cover is disposed outside the air intake cavity. The sealing cover is separated from the air intake frame body. The sealing cover can be stressed and deformed in toppling operation so as to close the air guide hole.

In one embodiment, an inner step is disposed on an inner wall of the liquid guide hole. The inner step is disposed around the inner wall of the liquid guide hole in a circumferential direction by a circle, so that the hole diameter of the liquid guide hole is gradually decreased in a direction away from the liquid drainage hole.

In one embodiment, the hole diameter of the air guide hole is gradually increased linearly in a direction away from the air intake hole.

In one embodiment, the air guide hole is in a cross shape. The stop blocks are disposed on two opposite sides of the guide column, respectively.

In one embodiment, the cap body is connected with a flipping cap capable of being opened and closed by flipping. Closing by flipping of the flipping cap is configured to surround and close the liquid drainage hole and the air intake hole.

The disclosure has the following beneficial effects:

In application, the anti-pollution bottle cap will be installed on a bottle for matched use. Because the liquid drainage one-way valve is disposed in the space enclosed by the cap body, and the liquid drainage hole is blocked by the liquid drainage one-way valve in one way so as to be opened during toppling operation, a user can normally drain liquid through the liquid drainage hole only by squeezing the bottle. When use is stopped, through blockage of the liquid drainage one-way valve to the liquid drainage hole, adherends on the body surface of the user are prevented from entering the bottle, contents will not be polluted, and the problem that an existing bottle cap is likely to pollute the contents is practically solved.

REFERENCE NUMERALS ARE AS FOLLOWS

10denotes a cap body,11denotes a liquid drainage hole,12denotes an air intake hole,13denotes a liquid drainage cavity, and14denotes an air intake cavity;20denotes a liquid drainage one-way valve,21denotes a liquid drainage blocking core, and22denotes a flexible rubber separation blade;30denotes an air intake one-way valve,31denotes a guide column,32denotes a sealing cover, and33denotes stop blocks;40denotes a bottle;50denotes a support,51denotes a liquid drainage frame body,511denotes a liquid guide hole,512denotes an inner step,52denotes an air intake frame body, and521denotes an air guide hole; and60denotes a flipping cap.

DETAILED DESCRIPTION

The following clearly and completely describes the technical solutions in the implementations of the disclosure with reference to the accompanying drawings in the implementations of the disclosure.

The disclosure provides an anti-pollution bottle cap. The first embodiment of the anti-pollution bottle cap is shown inFIG.1andFIG.3and comprises a cap body10, a liquid drainage one-way valve20and an air intake one-way valve30. A liquid drainage hole11and an air intake hole12are disposed in the cap body10, and both the liquid drainage hole11and the air intake hole12are communicated with an inside of the cap body10. The liquid drainage one-way valve20is disposed in a space enclosed by the cap body10. The liquid drainage hole11is blocked by the liquid drainage one-way valve20in one way so that the liquid drainage hole11is opened during toppling operation. The air intake one-way valve30is disposed in the space enclosed by the cap body10. The air intake hole12is blocked by the air intake one-way valve30in one way so that the air intake hole12is closed during toppling operation.

In application, the anti-pollution bottle cap will be installed on a bottle40for matched use. After the bottle40is made to topple, a user only needs to squeeze the bottle40. The liquid drainage one-way valve20will relieve blockage to the liquid drainage hole11. The air intake one-way valve30will block the air intake hole12. Liquid can be normally drained from the liquid drainage hole11. While, after use is stopped, the air intake one-way valve30relieves blockage to the air intake hole12. Air pressure in the bottle is recovered. Through blockage of the liquid drainage one-way valve20to the liquid drainage hole11, adherends on the body surface of the user are prevented from entering the bottle. Contents are not be polluted. The problem that an existing bottle cap is likely to pollute contents is practically solved.

As shown inFIG.1andFIG.2, a liquid drainage cavity13and an air intake cavity14are disposed in the cap body10. The liquid drainage cavity13is communicated with the liquid drainage hole11. The air intake cavity14is communicated with the air intake hole12. The anti-pollution bottle cap further comprises a support50. The support50comprises a liquid drainage frame body51and an air intake frame body52. The liquid drainage frame body51is embedded into the liquid drainage cavity13in an enclosing and blocking mode. The liquid drainage frame body51is provided with a liquid guide hole511. The liquid guide hole511is communicated with the liquid drainage cavity13. The liquid guide hole511is closed by the liquid drainage one-way valve20in one way. The air intake frame body52is embedded into the air intake cavity14in an enclosing and blocking mode. The air intake frame body52is provided with an air guide hole521. The air guide hole521is communicated with the air intake cavity14. The air guide hole521is closed by the air intake one-way valve30in one way.

In the direction shown inFIG.1andFIG.2, the liquid drainage cavity13and the air intake cavity14are disposed left and right side by side. Both the liquid drainage cavity13and the air intake cavity14are enclosed to be of a cylindrical tube-shaped structure. While the liquid drainage frame body51and the air intake frame body52are of a structure like a cylinder. The two are inserted into the liquid drainage cavity13and the air intake cavity14in a matched mode, respectively. In this way, the liquid drainage cavity13and the air intake cavity14are enclosed. It is also convenient for installation of the liquid drainage one-way valve20and the air intake one-way valve30.

As shown inFIG.1,FIG.2andFIG.4, the liquid drainage one-way valve20comprises a liquid drainage blocking core21and a flexible rubber separation blade22. One end of the liquid drainage blocking core21abuts against an inner top wall of the cap body10. The other end of the liquid drainage blocking core21penetrates into the liquid guide hole511. A diameter of the liquid drainage blocking core21is smaller than a hole diameter of the liquid guide hole511. The flexible rubber separation blade22is disposed in the liquid drainage cavity13. The flexible rubber separation blade22is disposed around the liquid drainage blocking core21in a circumferential direction by a circle. The flexible rubber separation blade22extends out of a circumferential direction of the liquid guide hole511so that flexible rubber separation blade22blocks communication between the liquid guide hole511and the liquid drainage hole11. The flexible rubber separation blade22is bent under pressure for communicating the liquid guide hole511with the liquid drainage hole11.

When the cap body10is placed uprightly, the flexible rubber separation blade22is in an extended state. The flexible rubber separation blade22will completely cover the liquid guide hole511. Accordingly, blockage from the liquid guide hole511to the liquid drainage hole11is achieved so as to prevent pollutants from entering the bottle through the liquid drainage hole11. When liquid drainage is needed, the cap body10will be in a turned-over state. If the bottle40is squeezed, liquid will apply downward thrust to the flexible rubber separation blade22. Accordingly, the flexible rubber separation blade22is made to be bent downwards to form a gap. Then, liquid can flow to the liquid drainage hole11to be drained.

As shown inFIG.1andFIG.2, an inner step512is disposed on an inner wall of the liquid guide hole511. The inner step512is disposed around an inner wall of the liquid guide hole511in a circumferential direction by a circle, so that the hole diameter of the liquid guide hole511is gradually decreased in a direction away from the liquid drainage hole11.

After the structure is adopted, a space between the liquid drainage blocking core21and the liquid guide hole511is larger at a position adjacent to the flexible rubber separation blade22. Not only can a liquid flow capacity be increased, but also it is ensured that smooth flowing of liquid also can be achieved with small deformation amplitude of the flexible rubber separation blade22.

As shown inFIG.1,FIG.2andFIG.5, the air intake one-way valve30comprises a guide column31and a sealing cover32. The guide column and the sealing cover are connected with each other. A diameter of the guide column31is smaller than a hole diameter of the air guide hole521. The guide column31penetrates through the air guide hole521. Stop blocks33are disposed at portions, in the air intake cavity14, of the guide column31. The stop blocks33extend towards an outside of a circumferential direction of the air guide hole521. The stop blocks33are configured to abut against the air intake frame body52to prevent the air intake one-way valve30from separating. The sealing cover32is disposed outside the air intake cavity14. The sealing cover32is separated from the air intake frame body52. The sealing cover32can be stressed and deformed in toppling operation so as to close the air guide hole521.

The sealing cover32in the embodiment is approximately in a mushroom shape. When the cap body10is disposed uprightly, the sealing cover32is in an unstressed state. The sealing cover32is separated from the air intake frame body52. Accordingly, it is ensured that air pressure inside the bottle body and air pressure outside the bottle body are balanced. When liquid drainage by toppling is needed, liquid will apply pressure to the sealing cover32. The sealing cover32is expanded and deformed to abut against the air intake frame body52. Accordingly, the air guide hole521is closed. Liquid is prevented from flowing from the air guide hole521to the air intake hole12.

As shown inFIG.2, the hole diameter of the air guide hole521is gradually increased linearly in a direction away from the air intake hole12.

Taking the direction shown in the figures as an example, after the structure is adopted, the stop blocks33can be pushed from bottom to top conveniently till the stop blocks33penetrate through the air guide hole521so as to achieve the snap-fit mounting of the air intake one-way valve30and the air intake frame body52.

As shown inFIG.2,FIG.4andFIG.5, the air guide hole521is in a cross shape. The stop blocks33are disposed on two opposite sides of the guide column31, respectively.

Therefore, when the air intake one-way valve30is installed, the two stop blocks33will penetrate through two opposite ends of the cross shape of the air guide hole521. The other two ends of the cross shape of the air guide hole521will be in an uncovered state. Accordingly, communication of airflow on two sides of the air guide hole521is ensured. The phenomenon that the air guide hole521is blocked is avoided.

As shown inFIG.1andFIG.3, the cap body10is connected with a flipping cap60capable of being opened and closed by flipping. Closing by flipping of the flipping cap60is configured to surround and close the liquid drainage hole11and the air intake hole12.

After the flipping cap60is additionally disposed, the flipping cap60is closed by flipping when the bottle is not in use as required so as to protect the liquid drainage hole11and the air intake hole12.

The second embodiment of the anti-pollution bottle cap of the disclosure is shown inFIG.7andFIG.8, and is basically consistent with the first embodiment of the anti-pollution bottle cap. Differences are as follows: a liquid drainage cavity13is disposed in the cap body10, and the liquid drainage cavity13is communicated with the liquid drainage hole11. The anti-pollution bottle cap further comprises a liquid drainage frame body51. The liquid drainage frame body51is embedded into the liquid drainage cavity13in an enclosing and blocking mode. The liquid drainage frame body51is provided with a liquid guide hole511. The liquid guide hole511is communicated with the liquid drainage cavity13. The liquid drainage one-way valve20comprises a liquid drainage blocking core21and a flexible rubber separation blade22. One end of the liquid drainage blocking core21abuts against an inner top wall of the cap body10. The other end of the liquid drainage blocking core21penetrates into the liquid guide hole511. A diameter of the liquid drainage blocking core21is smaller than a hole diameter of the liquid guide hole511. The flexible rubber separation blade22is disposed in the liquid drainage cavity13. The flexible rubber separation blade22is disposed around the liquid drainage blocking core21in a circumferential direction by a circle. The flexible rubber separation blade22extends out of a circumferential direction of the liquid guide hole511so that the flexible rubber separation blade22blocks communication between the liquid guide hole511and the liquid drainage hole11. The flexible rubber separation blade is bent under pressure for communicating the liquid guide hole511with the liquid drainage hole11. An air intake cavity14is disposed in the cap body10, and the air intake cavity14is communicated with the air intake hole12. The anti-pollution bottle cap further comprises an air intake frame body52. The air intake frame body52is embedded into the air intake cavity14in an enclosing and blocking mode. The air intake frame body52is provided with an air guide hole521. The air guide hole521is communicated with the air intake cavity14. The air intake one-way valve30comprises a guide column31and a sealing cover32. The guide column and the sealing cover are connected with each other. A diameter of the guide column31is smaller than a hole diameter of the air guide hole521. The guide column31penetrates through the air guide hole521. Stop blocks33are disposed at portions, in the air intake cavity14, of the guide column31. The stop blocks33extend towards an outside of a circumferential direction of the air guide hole521. The stop blocks33are configured to abut against the air intake frame body52to prevent the air intake one-way valve30from separating. The sealing cover32is disposed outside the air intake cavity14. The sealing cover32is separated from the air intake frame body52. The sealing cover32can be stressed and deformed in toppling operation so as to close the air guide hole521.

That is, in this embodiment, the liquid drainage frame body51and the air intake frame body52are divided into two independent components, rather than being connected into a whole. The same functions can be achieved as well. Because functions achieved by this embodiment are basically the same as those of the first embodiment, they will not be described.

The above mentioned are preferred implementations of the disclosure. It should be noted that several improvements and refinements may be made by those of ordinary skill in the art without departing from the principles of the disclosure, and these improvements and refinements are also to be considered within the scope of the disclosure.