Bottle cap one-way valve and bottle cap

Abstract

The bottle cap one-way valve comprises a valve element tightly matched with the inner wall of a bottle cap pipeline, the bottle cap pipeline is provided with an inlet and an outlet, and a flow channel communicated with the pipeline is arranged in the valve element in a penetrating mode. A containing cavity is formed between the valve element and the outlet of the bottle cap pipeline, the one-way valve further comprises a sealing ball arranged in the containing cavity, the diameter of the sealing ball is larger than the inner diameter of the flow channel and the caliber of the outlet, and a medium channel communicated with the inner side of the bottle cap is arranged on the peripheral side of the outlet in the bottle cap pipeline. According to the technical scheme, the bottle cap one-way valve is arranged in the bottle cap pipeline and comprises the valve element and the sealing ball, the sealing ball is arranged between the valve element and the pipeline outlet, when media enter the pipeline, the media push away the sealing ball to enter the inner side of the bottle cap from the medium channel on the peripheral side of the outlet, and when the media in the bottle cap flow back, the sealing ball is pushed away. And the sealing ball is reversely pushed to block a flow channel of the valve core, so that the one-way valve plays a role in feeding a medium in one way, and the medium in the bottle cap is prevented from flowing backwards.

Description

Technical Field

[0001] The utility model relates to the technical field of tire repair equipment, in particular to a bottle cap check valve and a bottle cap. Background Technique

[0002] With the development of the economy and the improvement of people's income, more and more families own private cars, which makes the number of cars on the road increasing, and the corresponding number of car failures is also increasing. For example, when a car is driving, it is inevitable to encounter a situation where the tire is punctured. Especially when such an accident occurs on the highway, how to quickly repair the tire is particularly important.

[0003] Existing car tire repairs usually involve installing a tire repair liquid bottle on an air pump, and the air pump outputs the tire repair liquid into the tire. For example, a Chinese utility model patent with the publication number CN221462481U discloses an air pump, a tire repair liquid bottle, and an integrated inflation and tire repair device. The integrated inflation and tire repair device includes an air pump and a tire repair liquid bottle. The air pump includes a housing and a gas source generator, a valve-equipped air nozzle, and a three-way valve arranged inside the housing. The tire repair liquid bottle includes a bottle body, a liquid outlet device, and a liquid outlet pipe. In the embodiment of the present utility model, the tire repair liquid bottle is installed on the air pump by the mutual buckling of the liquid outlet device and the installation part of the air pump housing. The three-way valve in the air pump housing is communicated with the first air inlet of the liquid outlet device of the tire repair liquid bottle. The gas generated by the gas source generator in the air pump enters the tire repair liquid bottle through the three-way valve and the first air inlet of the liquid outlet device. The tire repair liquid in the tire repair liquid bottle flows out from the liquid outlet and reaches the tire through the liquid outlet pipe. The tire repair liquid bottle can be directly inserted into the air pump to inflate and repair the tire, simplifying and facilitating the connection between the tire repair liquid bottle and the air pump.

[0004] However, when the air pump suddenly stops, the pressure in the tire repair liquid bottle will press the tire repair liquid back into the air pump, damaging the air pump. Summary of the Invention

[0005] In order to solve the above problems, the first object of the present utility model is to provide a bottle cap check valve that can prevent the liquid inside the bottle cap from flowing back into the bottle cap pipeline and then entering the air pump, resulting in damage to the air pump; the second object of the present utility model is to provide a bottle cap having the above-mentioned bottle cap check valve.

[0006] In order to achieve the above object, the present utility model adopts the following technical solutions:

[0007] A bottle cap one-way valve, characterized in that: it includes a valve core tightly fitted with the inner wall of the bottle cap pipeline. The bottle cap pipeline has an inlet and an outlet, and a flow channel communicating with the pipeline is provided through the valve core; a receiving cavity is formed between the valve core and the outlet of the bottle cap pipeline. The one-way valve further includes a sealing ball arranged in the receiving cavity. The diameter of the sealing ball is larger than the inner diameter of the flow channel and the caliber of the outlet. A medium channel communicating with the inner side of the bottle cap is provided on the periphery of the outlet in the bottle cap pipeline;

[0008] When the bottle cap pipeline admits medium, the sealing ball blocks the outlet, and the pipeline communicates with the medium channel through the flow channel; when the bottle cap pipeline discharges medium, the sealing ball blocks the flow channel, and the pipeline does not communicate with the medium channel.

[0009] In the above technical solution, a bottle cap one-way valve is arranged in the bottle cap pipeline. The one-way valve includes a valve core and a sealing ball. The sealing ball is arranged between the valve core and the pipeline outlet. When the pipeline admits medium, the medium pushes open the sealing ball and enters the inner side of the bottle cap from the medium channel on the periphery of the outlet. When the medium in the bottle cap flows back, the sealing ball is pushed back to block the flow channel of the valve core, so that the one-way valve plays a role of admitting medium unidirectionally and prevents the medium in the bottle cap from flowing back.

[0010] Preferably, the valve core includes a main body portion tightly fitted with the inner wall of the bottle cap pipeline and a convex portion formed on the main body portion and extending toward the outlet side. A gap is formed between the convex portion and the inner wall of the pipeline. In this technical solution, a gap is formed between the convex portion and the inner wall of the pipeline, making it easier to install the valve core into the pipeline during installation and improving the installation efficiency.

[0011] Preferably, an external thread tightly fitted with the inner wall of the bottle cap pipeline is provided on the side wall of the main body portion. In this technical solution, the external thread on the side wall of the main body portion can achieve a better sealing effect.

[0012] Preferably, a screwing port adapted to the tip of a screwdriver is provided on the outer side of the main body portion. In this technical solution, the screwing port on the main body portion of the valve core can facilitate the user to use a screwdriver for screwing, which is more convenient.

[0013] A bottle cap includes a cap body. An air inlet nozzle and a liquid outlet nozzle are provided on the side wall of the cap body. The air inlet nozzle communicates with the inside of the bottle through an air inlet channel, and the liquid outlet nozzle communicates with the inside of the bottle through a liquid outlet channel. It is characterized in that: it further includes a bottle cap one-way valve described in any one of the above. The air inlet channel includes a wide channel and a narrow channel arranged from outside to inside. A step is formed between the wide channel and the narrow channel. A plurality of support columns are provided on the circumference of the step and extend into the wide channel. A medium groove communicating with the narrow channel and the wide channel is formed between adjacent support columns; the one-way valve is arranged in the wide channel, the sealing ball is arranged in the receiving cavity between the wide channel and the narrow channel, and the diameter of the sealing ball is larger than the inner diameter of the narrow channel. The plurality of medium grooves form the medium channel.

[0014] In the above technical solution, when the bottle cap is used upside down, the air inlet nozzle is connected to the air pump, and the liquid outlet nozzle is connected to the tire valve through a liquid outlet pipe; the air inlet nozzle and the liquid outlet nozzle communicate with the inside of the bottle through an air inlet channel and a liquid outlet channel respectively. The air inlet channel is set to be wider outside and narrower inside, and several medium grooves are formed on the step between the wide channel and the narrow channel. When inflating, the air flow enters the wide channel, pushes open the sealing ball through the flow channel in the valve core, and the air flow enters the bottle cap through the medium groove (medium channel), pressing the liquid in the bottle into the liquid outlet channel. When the air pump stops working accidentally, the liquid in the bottle enters the narrow channel under the action of pressure, pushing the sealing ball to the front end of the valve core to seal the flow channel, thereby preventing the liquid in the bottle from flowing back into the air pump and damaging the air pump.

[0015] Preferably, a pressing ring matching with the bottle mouth is provided on the inner side of the cover body. A groove corresponding to the bottle mouth is formed in the pressing ring. The groove communicates with the air inlet channel and the liquid outlet channel. An opening column protruding from the groove bottom surface is provided on the bottom surface of the groove, and the lower end surface of the opening column is an inclined section. In this technical solution, the setting of the opening column and its inclined section facilitates opening the aluminum foil seal on the bottle mouth, which is more convenient.

[0016] Preferably, a sealing gasket is provided between the pressing ring and the inner wall of the cover body. In this technical solution, the setting of the sealing gasket improves the sealing effect between the bottle cap and the bottle.

[0017] Preferably, an internal thread for screwing connection with the bottle mouth is provided on the inner wall of the cover body. In this technical solution, the internal thread is used to cooperate with the external thread on the bottle for connection, achieving a good sealing effect. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a bottle cap one-way valve.

[0019] Figure 2 It is a top view structural schematic diagram of a bottle cap.

[0020] Figure 3 It is Figure 2 the A-A direction structural schematic diagram of

[0021] Figure 4 It is a three-dimensional structural schematic diagram of a bottle cap.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a bottle cap from another perspective. Detailed Embodiment

[0023] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature. Embodiment 1:

[0028] As Figure 1 and Figure 3 shown, a one-way valve for a bottle cap includes a valve core 1 tightly fitted to the inner wall of the bottle cap pipeline. The bottle cap pipeline has an inlet and an outlet, and a flow channel 4 communicating with the pipeline is provided through the valve core 1; a receiving cavity 2 is formed between the valve core 1 and the outlet of the bottle cap pipeline. The one-way valve further includes a sealing ball 3 disposed in the receiving cavity 2. The diameter of the sealing ball 3 is larger than the inner diameter of the flow channel 4 and the caliber of the outlet. A medium channel communicating with the inner side of the bottle cap is provided on the circumferential side of the outlet in the bottle cap pipeline;

[0029] When the bottle cap pipeline admits the medium, the sealing ball 3 blocks the outlet, and the pipeline communicates with the medium channel through the flow channel 4; when the bottle cap pipeline discharges the medium, the sealing ball 3 blocks the flow channel 4, and the pipeline does not communicate with the medium channel.

[0030] In the above technical solution, a one-way valve for a bottle cap is provided in the bottle cap pipeline. The one-way valve includes a valve core and a sealing ball. The sealing ball is disposed between the valve core and the pipeline outlet. When the pipeline admits the medium, the medium pushes open the sealing ball and enters the inner side of the bottle cap from the medium channel on the circumferential side of the outlet. When the medium in the bottle cap flows back, the sealing ball is pushed back to block the flow channel of the valve core, thereby enabling the one-way valve to play a role in admitting the medium unidirectionally and preventing the medium in the bottle cap from flowing back.

[0031] Further, the valve core 1 includes a main body portion 5 tightly fitted to the inner wall of the bottle cap pipeline and a convex portion 6 formed on the main body portion 5 and extending toward the outlet side. A gap is formed between the convex portion 6 and the inner wall of the pipeline. In this technical solution, a gap is formed between the convex portion and the inner wall of the pipeline, making it easier to install the valve core into the pipeline during installation and improving the installation efficiency.

[0032] Further, an external thread 7 tightly fitted to the inner wall of the bottle cap pipeline is provided on the side wall of the main body portion 5. In this technical solution, the external thread on the side wall of the main body portion can achieve a better sealing effect.

[0033] Further, a screwing port 8 adapted to the tip of a screwdriver is provided on the outer side of the main body portion 5. In this technical solution, the screwing port on the main body portion of the valve core facilitates the user to use a screwdriver for screwing, which is more convenient. Embodiment 2:

[0034] A bottle cap as shown in FIGS. 2 to 5 includes a cap body. An air inlet nozzle 9 and a liquid outlet nozzle 10 are provided on the side wall of the cap body. The air inlet nozzle 9 communicates with the inside of the bottle through an air inlet channel 11, and the liquid outlet nozzle 10 communicates with the inside of the bottle through a liquid outlet channel 12. The air inlet channel 11 includes a wide channel 13 and a narrow channel 14 arranged from outside to inside. A step 23 is formed between the wide channel 13 and the narrow channel 14. A plurality of support columns 22 are circumferentially extended into the wide channel from the step 23. A medium groove 15 communicating with the narrow channel 14 and the wide channel 13 is formed between adjacent support columns 22. A bottle cap check valve is arranged in the wide channel 13. A sealing ball 3 is arranged in the accommodating cavity 2 between the wide channel 13 and the narrow channel 14, and the diameter of the sealing ball 3 is larger than the inner diameter of the narrow channel 14. The plurality of medium grooves 15 form the medium channel.

[0035] In the above technical solution, when the bottle cap is used upside down, the air inlet nozzle is connected to an air pump, and the liquid outlet nozzle is connected to a tire nozzle through a liquid outlet pipe. The air inlet nozzle and the liquid outlet nozzle communicate with the inside of the bottle through the air inlet channel and the liquid outlet channel respectively. The air inlet channel is arranged to be wide outside and narrow inside, and a plurality of medium grooves are formed on the step between the wide channel and the narrow channel. When inflating, the air flow enters the wide channel, pushes the sealing ball open through the flow channel in the valve core, and the air flow enters the bottle cap through the medium groove (medium channel), and presses the liquid in the bottle into the liquid outlet channel. When the air pump stops working accidentally, the liquid in the bottle enters the narrow channel under the action of pressure, pushes the sealing ball to the front end of the valve core to seal the flow channel, thereby preventing the liquid in the bottle from flowing back into the air pump and damaging the air pump.

[0036] Further, a pressing ring 16 matching with the bottle mouth is provided on the inner side of the cap body. A groove 17 corresponding to the bottle mouth is formed in the pressing ring 16. The groove 17 communicates with the air inlet channel 11 and the liquid outlet channel 12. An opening column 18 protruding from the groove 17 is provided on the bottom surface of the groove 17. The lower end surface of the opening column 18 is an inclined cutting surface 19. In this technical solution, the setting of the opening column and its inclined cutting surface facilitates opening the aluminum foil seal on the bottle mouth, which is more convenient.

[0037] Further, a sealing gasket 20 is provided between the pressing ring 16 and the inner wall of the cap body. In this technical solution, the setting of the sealing gasket improves the sealing effect between the bottle cap and the bottle.

[0038] Further, an internal thread 21 for screwing connection with the bottle mouth is provided on the inner wall of the cap body. In this technical solution, the internal thread is used to cooperate with the external thread on the bottle for connection, achieving a good sealing effect.

[0039] In this specific embodiment, aiming at the problem that when the existing tire repair liquid bottle is used in conjunction with an air pump, when the air pump suddenly stops, the pressure in the tire repair liquid bottle will push the tire repair liquid back into the air pump, damaging the air pump. The above solution is to set a bottle cap check valve in the wide channel of the air inlet channel, with the sealing ball arranged between the valve core and the channel. A number of medium grooves are formed on the step between the wide channel and the narrow channel. When inflating, the air flow enters the wide channel and pushes the sealing ball away through the flow channel in the valve core. The air flow enters the bottle cap through the medium grooves (medium channels) and presses the liquid in the bottle into the liquid outlet channel. When the air pump stops working unexpectedly, the liquid in the bottle enters the narrow channel under the action of pressure, pushes the sealing ball to the front end of the valve core to seal the flow channel, thereby preventing the liquid in the bottle from flowing back into the air pump and damaging the air pump.

[0040] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principle and purpose of the present invention.

Claims

1. A one-way valve for a bottle cap, characterized in that: It includes a valve core (1) tightly fitted to the inner wall of the bottle cap pipeline. The bottle cap pipeline has an inlet and an outlet, and a flow channel (4) communicating with the pipeline is formed through the valve core (1). A receiving cavity (2) is formed between the valve core (1) and the outlet of the bottle cap pipeline. The one-way valve further includes a sealing ball (3) disposed in the receiving cavity (2). The diameter of the sealing ball (3) is larger than the inner diameter of the flow channel (4) and the caliber of the outlet. A medium channel communicating with the inner side of the bottle cap is provided on the periphery of the outlet in the bottle cap pipeline. When the bottle cap pipeline admits the medium, the sealing ball (3) blocks the outlet, and the pipeline communicates with the medium channel through the flow channel (4). When the bottle cap pipeline discharges the medium, the sealing ball (3) blocks the flow channel (4), and the pipeline does not communicate with the medium channel.

2. The one-way valve of a bottle cap according to claim 1, wherein: The valve core (1) includes a main body portion (5) tightly fitted to the inner wall of the bottle cap pipeline and a convex portion (6) formed on the main body portion (5) and extending toward the outlet side. A gap is formed between the convex portion (6) and the inner wall of the pipeline.

3. The one-way valve of a bottle cap according to claim 2, characterized in that: External threads (7) tightly fitted to the inner wall of the bottle cap pipeline are provided on the side wall of the main body portion (5).

4. A one-way valve for a bottle cap according to claim 2, characterized in that: A screwdriver head fitting screwing port (8) is provided on the outside of the main body portion (5).

5. A bottle cap, comprising a cap body, wherein an air inlet nozzle (9) and a liquid outlet nozzle (10) are provided on the side wall of the cap body, the air inlet nozzle (9) is communicated with the inside of the bottle through an air inlet channel (11), and the liquid outlet nozzle (10) is communicated with the inside of the bottle through a liquid outlet channel (12), and is characterized in that: It also includes a bottle cap one-way valve according to any one of claims 1 to 4. The intake channel (11) includes a wide channel (13) and a narrow channel (14) arranged from outside to inside. A step (23) is formed between the wide channel (13) and the narrow channel (14). A number of support columns (22) are provided on the step (23) extending circumferentially into the wide channel. A medium groove (15) communicating with the narrow channel (14) and the wide channel (13) is formed between adjacent support columns (22). The one-way valve is disposed in the wide channel (13). The sealing ball (3) is disposed in the receiving cavity (2) between the wide channel (13) and the narrow channel (14), and the diameter of the sealing ball (3) is larger than the inner diameter of the narrow channel (14). A number of medium grooves (15) form the medium channel.

6. The bottle cap according to claim 5, characterized in that: A retaining ring (16) cooperating with the bottle mouth is provided on the inner side of the cover body. A groove (17) corresponding to the bottle mouth is formed in the retaining ring (16). The groove (17) communicates with the intake channel (11) and the liquid outlet channel (12). An opening column (18) extending out of the groove (17) is provided on the bottom surface of the groove (17). The lower end surface of the opening column (18) is an inclined cut surface (19).

7. A bottle cap according to claim 6, characterized in that: A sealing gasket (20) is provided between the retaining ring (16) and the inner wall of the cover body.

8. A bottle cap according to claim 7, characterized in that: Internal threads (21) threadedly connecting with the bottle mouth are provided on the inner wall of the cover body.

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