Cylinder valve

Abstract

The utility model discloses a cylinder valve. The cylinder valve comprises a valve body and an air channel formed in the axial direction of the valve body. The valve body comprises a valve lip part and a valve neck part; the valve lip part is located above the valve neck part and is in a circular truncated cone shape. The inclination angle of the outer wall of the valve lip part and the inclination angle of the inner cavity of the valve lip part form an angle difference, and the valve lip part forms a structure of which the wall thickness is sequentially increased through the angle difference; the valve neck part is provided with an air channel, the air channel penetrates through the valve neck part, the valve lip part is provided with an air gap connected with the air channel, and the air gap is closed when the inner cavity of the container is in non-negative pressure and opened when the inner cavity of the container is in negative pressure. Through the design of the inclination angle difference between the outer wall of the valve lip part and the inner cavity, the valve lip part has the structure with the thick bottom and the thin top, the valve lip part can have the large wall thickness at the position, needing to rotate, of the bottom so as to support frequent deformation, meanwhile, a larger action area can be provided for the bottom of the valve lip part, and when the valve lip part is installed, due to the larger action area, the valve lip part is not prone to deformation. And the mounting stability is better when the mounting bracket is propped against the mounting position.

Description

Technical Field

[0001] The present application relates to the technical field of valves, in particular to a bottle valve. Background Art

[0002] When a bottle is in use, due to thermal expansion and contraction or when the liquid in the bottle is drunk using a straw or a pacifier, negative pressure is generated in the bottle, and the water in the bottle is difficult to drink. Therefore, in order to balance the negative pressure, an air valve is generally provided on the body or bottom of the bottle, such as a baby bottle, to automatically intake air when negative pressure occurs.

[0003] However, this type of air valve is relatively small and often deforms at the air gap, resulting in a short service life. To solve this problem, we propose a bottle valve with a longer service life. Summary of the invention

[0004] One object of the present application is to provide a bottle valve with a better service life.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a bottle valve, comprising a valve body and an air path formed along the axial direction of the valve body; the valve body comprises a valve lip and a valve neck; the valve lip is located above the valve neck, and the valve lip is in the shape of a truncated cone; the inclination angle of the outer wall of the valve lip forms an angle difference with the inclination angle of its inner cavity, and the angle difference enables the valve lip to form a configuration with increasing wall thickness; the air path passes through the valve neck, and the valve lip is provided with an air gap connected to the air path, and the air gap is closed when the inner cavity of the container is under non-negative pressure, and is opened when the pressure inside the container is negative.

[0006] As a preference, the outer wall inclination angle ranges from 40° to 70°; the outer wall inclination angle of the valve lip is smaller than the inner cavity inclination angle, and forms an angle difference c, and the value range of c is between 5° and 20°.

[0007] Preferably, an overlapping area is formed at the connection between the valve neck and the valve lip, and a step is formed at the outer end of the connection and a transition area is formed on the inner side of the connection, and the outer part of the overlapping area is composed of the tail end of the valve lip, so that the valve body has a maximum wall thickness at the connection, and the transition area is higher than the height of the step, and the transition area and the step are both inclined outward to cooperate with each other to form a bending part.

[0008] As a preference, the wall thickness of the valve neck accounts for between one quarter and one half of the total length of its radius.

[0009] As a preferred embodiment, the height of the valve neck is between 2 mm and 10 mm.

[0010] As a preference, a locking portion is provided at the bottom or side wall of the container, and a locking groove is formed between the bottom of the valve lip and the valve neck, and cooperates with the locking portion to lock.

[0011] As a preference, the valve body further comprises a support body connected to the bottom of the valve neck, the wall thickness of the support body is smaller than the wall thickness of the valve neck; and the cross-section of the support body is an isosceles trapezoid.

[0012] As a preference, the outer diameter of the bottom of the support body is between 31.7 mm and 40 mm.

[0013] As a preferred embodiment, the valve lip is symmetrically cut from its top to form a first side portion and a second side portion, the first side portion and the second side portion form a diaphragm for opening and closing the air gap, and the inclination angles of the inner and outer walls at the first side portion and the second side portion have an angle difference so that the two have a wall thickness that gradually increases from top to bottom; two sections of reinforcement portions are formed at the connection between the first side portion and the second side portion, and the middle portion of the inner wall of the reinforcement portion is set to be of equal thickness.

[0014] Preferably, the long end distance of the air gap is less than or equal to the inner cavity diameter of the valve neck.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] The structure of the valve lip being thin at the top and thick at the bottom makes it easy to open and close the air gap because the top is thinner; on the other hand, the bottom of the valve lip is thicker, so it has sufficient strength, which makes it have a better service life. Through the design of the valve lip being thick at the bottom and thin at the top, the valve lip can have a larger wall thickness at its bottom. During installation, the valve neck needs to deform with the hole at the installation position, so the deformation of the valve neck is inevitable. At the connection between the top of the valve neck and the valve lip, the valve lip has a larger wall thickness, so the valve neck has less influence on the valve lip during and after installation, which has little effect on the opening and closing of the air gap, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present application.

[0018] Figure 2 yes Figure 1 sectional view of .

[0019] Figure 3 This is the state diagram when the valve body is installed on the side wall of the container.

[0020] Figure 4 yes Figure 1 A cross-sectional view from another angle.

[0021] In the figure: 1, valve lip; 1a, first side; 1b, second side; 2, reinforcement; 3, valve neck; 4, support body; 5, step; 6, slow flow area; 7, container side wall. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do 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 cannot be understood as limiting the specific scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] Example:

[0027] Reference Figures 1 to 4As shown, this embodiment provides a bottle valve, which mainly includes a valve body and an air path formed along the axial direction of the valve body; wherein the valve body includes a valve lip 1 and a valve neck 3; the air path runs through the valve neck 3, and the valve lip 1 is provided with an air gap connected to the air path, and the air gap is closed when the inner cavity of the container is under non-negative pressure, and is opened when the inner cavity of the container is under negative pressure. In the present embodiment, the valve lip 1 is located above the valve neck 3, and the valve lip 1 is in the shape of a truncated cone; further, the outer wall inclination angle of the valve lip 1 and the inner cavity inclination angle thereof form an angle difference, and the valve lip 1 is formed into a configuration with gradually increasing wall thickness through the angle difference. Obviously, if such a gradually thickening structure is to be formed, the inclination angle of the inner cavity must be greater than the inclination angle of the outer wall. Therefore, in the present embodiment, if one wants to change the closing strength of the air gap of the valve lip 1, it is only necessary to limit the inclination angles of the inner and outer cavities. For example, if one wants to increase the strength, one can increase the angle difference between the inclination angle of the outer wall of the valve lip 1 and the inclination angle of the inner cavity. In this way, the valve lip 1 can form a structure that is thin on the top and thick on the bottom. On the one hand, the opening and closing of the air gap is convenient because the top is thinner; on the other hand, the bottom of the valve lip 1 is thicker, so it has sufficient strength. By designing the valve lip 1 to be thick at the bottom and thin at the top, the valve lip 1 can have a larger wall thickness at its bottom. During installation, the valve neck 3 needs to deform with the hole at the installation position, so the deformation of the valve neck 3 is inevitable. At the connection between the top of the valve neck 3 and the valve lip 1, the valve lip 1 has a larger wall thickness, so the valve neck 3 has a smaller impact on the valve lip 1 during and after installation, and has little impact on the opening and closing of the air gap, thereby increasing its service life; at the same time, a larger effective area can be provided to its bottom. During installation, due to the larger effective area, it has better installation stability when it is against the installation position. In actual use, the bottom of the valve lip 1 may not be against the container wall, but it can prevent the bottle valve from being easily pulled out.

[0028] In order to make the wall thickness and total length of the valve lip 1 within a reasonable range, the outer wall inclination angle is controlled within a range of 40° to 70° in the present embodiment; the outer wall inclination angle of the valve lip 1 is smaller than the inner cavity inclination angle, and forms an angle difference c, and the value range of c is between 5° and 20°, which can generally limit the inner cavity inclination angle of the valve lip 1 to within a range of 50° to 80°. In fact, if the inner cavity inclination angle of the valve lip reaches 90°, the inner cavity of the valve lip 1 will be very narrow; within the above range, the wall thickness change rate of the valve lip 1 (the thickness increase rate from top to bottom) is relatively reasonable, and the situation where the upper wall thickness is very thin and the bottom wall thickness is very thick will not occur.

[0029] Reference Figure 1, the connection between the valve neck 3 and the valve lip 1 forms an overlap area, and a step 5 is formed at the outer end of the connection, and a transition area is formed on the inner side of the connection. The outer part of the overlap area is formed by the tail end of the valve lip 1, so that the valve body has the maximum wall thickness at the connection. The transition area is higher than the height of the step 5, and the transition area and the step 5 are inclined outward to cooperate with each other to form a bending part. When the valve body is installed, the valve lip 1 is deformed through the installation position, and finally fixed by the elastic clamping position of the valve neck 3 and the container installation position (elastic deformation of the valve neck 3), and the step 5 can prevent the bottle valve from being easily pulled out after fixing. Due to the design of the valve lip 1 being thin at the top and thick at the bottom, the air gap is in a stable closed state in the natural state, and the air gap will open when it is affected by the negative pressure in the container. In this embodiment, the way that the tail end of the lip 1 and the top part of the valve neck 3 overlap increases the wall thickness here, so that when the valve neck 3 is deformed during installation and use, it will not affect the valve lip 1 as much as possible, thereby preventing the air gap at the top of the valve lip 1 from being affected during installation and use.

[0030] In order to make the valve neck 3 have a smooth gas path and sufficient strength, the preferred wall thickness of the valve neck 3 in this embodiment is between one quarter and one half of the total radius length of the valve neck 3. Commonly, the wall thickness of the valve neck 3 can be one third of the total radius length; within this range, the valve neck 3 has sufficient thickness, and the inner cavity of the valve neck 3 also has sufficient space for gas to enter.

[0031] In this embodiment, the height of the valve neck 3 is preferably set at 2mm~10mm; on the one hand, the thickness of the bottle body itself has certain requirements on the thickness of the valve neck, so its minimum value is set at 2mm; on the other hand, since the valve neck 3 will deform due to the interaction with the inner wall of the container during installation, the bottom of the valve lip 1 is connected to the valve neck 3. In order to prevent the deformation of the valve neck 3 from causing the valve lip 1 to deform, the height of the valve neck 3 can be increased to a certain extent, but the valve neck 3 should not be too long. If it is too long, the valve body will occupy too much space of the container volume. Therefore, it is more appropriate to set the upper limit to 10mm.

[0032] Another embodiment of the bottle valve is proposed, in which a locking portion 7 is provided on the bottom or side wall of the container, and a locking groove is formed between the bottom of the valve lip and the valve neck. When installing, after the valve lip is extended into the interior of the container, the locking groove cooperates with the locking portion 7 to lock. The best state is that the step 5 is against the locking portion 7, and the bottle valve can be stably installed on the locking portion.

[0033] like Figure 2 As shown, the valve body also includes a support body 4 connected to the bottom of the valve neck 3, and the wall thickness of the support body 4 is less than the wall thickness of the valve neck 3; the cross section of the support body 4 is an isosceles trapezoid, which can be referred to Figure 2 The support body 4 is used to abut against the outer wall of the container to prevent the bottle valve from being excessively inserted into the container; it can also be combined with the locking portion 7, such as Figure 3As shown, the bottle valve forms a stable position.

[0034] The outer diameter of the bottom of the support body 4 is between 31.7 mm and 40 mm. When it is less than 31.7 mm, the bottle valve may be very small as a whole, which is not safe for infants and young children. However, if the support body 4 is too large, it will take up too much space. Therefore, in this embodiment, the diameter of the bottom of the support body 4 is limited.

[0035] In this embodiment, the valve lip 1 is symmetrically cut from its top to form a first side portion 1a and a second side portion 1b, the first side portion 1a and the second side portion 1b form a diaphragm for opening and closing the air gap, and the inclination angles of the inner and outer walls of the first side portion 1a and the second side portion 1b have an angle difference, so that the two have a wall thickness that gradually increases from top to bottom; two sections of reinforcement portions 2 are formed at the connection between the first side portion 1a and the second side portion 1b, and the middle part of the inner wall of the reinforcement portion 2 is set to be of equal thickness (refer to Figure 4 ), relatively speaking, the air gap at the top of the valve lip 1 needs to be deformed, and when the air gap is deformed, it is actually the thinnest parts at the top of the first side portion 1a and the second side portion 1b that are brought together or separated, but the narrow end of the air gap in the direction of the reinforcement portion 2 does not actually need to be deformed. For this reason, the side walls in the direction of the reinforcement portion 2 are of equal thickness, so the narrow end of the air gap corresponding to the top of the reinforcement portion 2 is not easy to deform, that is, the valve lip 1 is not easy to deform on both sides perpendicular to the air gap direction. Since the inner walls of the first side portion 1a and the second side portion 1b are still gradually thickened, the design of this embodiment has no effect on the closure of the air gap, and the formation of the reinforcement portion 2 and the equal thickness setting of the inner wall of the thickened portion 2 make it possible for the narrow end of the air gap not to be deformed when the air gap is opened or closed, that is, the air gap is prevented from deforming in a non-preset direction.

[0036] Furthermore, the long end distance of the air gap is less than or equal to the inner cavity diameter of the valve neck to ensure that the gas can pass smoothly through the gas path.

[0037] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A bottle valve, characterized in that: It comprises a valve body and a gas path formed along the axial direction of the valve body; The valve body comprises a valve lip and a valve neck; The valve lip is located above the valve neck and is in the shape of a truncated cone; the outer wall inclination angle of the valve lip and the inner cavity inclination angle thereof form an angle difference, and the valve lip is formed into a configuration with increasing wall thickness through the angle difference; The air path passes through the valve neck, and the valve lip is provided with an air slit connected to the air path. The air slit is closed when the inner cavity of the container is under non-negative pressure, and is opened when the inner cavity of the container is under negative pressure.

2. The bottle valve according to claim 1, characterized in that: The outer wall inclination angle ranges from 40° to 70°; the outer wall inclination angle of the valve lip is smaller than the inner cavity inclination angle, and forms an angle difference c, and the value range of c is between 5° and 20°.

3. The bottle valve according to claim 1, characterized in that: An overlapping area is formed at the connection between the valve neck and the valve lip, and a step is formed at the outer end of the connection and a transition area is formed on the inner side of the connection. The outer part of the overlapping area is composed of the tail end of the valve lip, so that the valve body has a maximum wall thickness at the connection, and the transition area is higher than the height of the step.

4. The bottle valve according to claim 1, characterized in that: The wall thickness of the valve neck accounts for between one quarter and one half of the total length of the radius thereof.

5. The bottle valve according to claim 4, characterized in that: The height of the valve neck is between 2 mm and 10 mm.

6. The bottle valve according to claim 1, characterized in that: The bottom or side wall of the container is provided with a locking portion, and a locking groove is formed between the bottom of the valve lip and the valve neck, and is locked with the locking portion.

7. The bottle valve according to claim 1, characterized in that: The valve body further comprises a support body connected to the bottom of the valve neck, the wall thickness of the support body is smaller than the wall thickness of the valve neck; and the cross section of the support body is an isosceles trapezoid.

8. The bottle valve according to claim 7, characterized in that: The outer diameter of the bottom of the support body is between 31.7 mm and 40 mm.

9. The bottle valve according to claim 1, characterized in that: The valve lip is symmetrically cut from its top to form a first side portion and a second side portion, the first side portion and the second side portion form a diaphragm for opening and closing the air gap, and the inclination angles of the inner and outer walls at the first side portion and the second side portion have an angle difference so that the two have a wall thickness that gradually increases from top to bottom; two sections of reinforcement portions are formed at the connection between the first side portion and the second side portion, and the middle portion of the inner wall of the reinforcement portion is set to be of equal thickness.

10. The bottle valve according to claim 1, characterized in that: The long end distance of the air slit is less than or equal to the inner cavity diameter of the valve neck.

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