Push type lever linkage dual channel flow regulating bottle cap

Abstract

This invention belongs to the field of bottle cap technology and discloses a press-type lever-linked dual-channel flow regulating bottle cap, including a cap body, a valve core, and a dustproof flip cap. The cap body has a sealing surface on its top, with an outlet hole on the sealing surface. The valve core is rotatably mounted at the outlet hole via a pivot. Symmetrical fan-shaped wing plates are arranged on both sides of one end of the valve core's bottom. The outlet hole and the fan-shaped wing plates form an air inlet channel on the corresponding side and an outlet channel on the opposite side. The top end of the valve core adjacent to the fan-shaped wing plates has an arc-shaped structure with multiple teeth along the width of the valve core. These teeth engage with the sidewall of the air inlet channel to limit the rotation angle of the valve core. This invention achieves synchronous opening and closing of the air inlet and outlet channels by pressing the arc-shaped end of the valve core, linearly adjusting the flow rate with the pressing depth, and maintaining the flow rate by the engagement of the teeth with the sidewall. It features a compact structure, simple operation, stable tilting, and low manufacturing cost.

Description

Technical Field

[0001] This invention relates to the field of bottle cap technology, and in particular to a press-type lever-linked dual-channel flow regulating bottle cap. Background Technology

[0002] Among existing liquid bottle caps, flip-top designs are the most common, allowing users to pour liquid by flipping open the top. These caps typically have only one outlet, creating negative pressure inside the bottle during pouring, which can cause intermittent gushing or pausing of the liquid, making it difficult to smoothly control the pouring volume. To address this issue, some caps have incorporated independent air inlets, but these often require separate opening for the air inlet and outlet, making operation inconvenient. Regarding flow rate adjustment, most caps have a fixed outlet cross-sectional area, making it impossible to adjust the pouring volume as needed; a few products with adjustment functions rely on independent knobs, levers, or elastic elements, resulting in complex structures and higher costs.

[0003] Furthermore, bottle caps with position retention functions often use additional parts such as ratchet, pawl, or springs, which not only increases assembly steps but also poses a risk of component failure. Dustproof flip caps are usually only for dust protection and lack a forced closure mechanism for the valve core. If accidentally squeezed during transportation or carrying, the valve core may open on its own. Additionally, different bottle bodies have different requirements for connection methods, and existing bottle caps often only fit one type, resulting in poor versatility. Summary of the Invention

[0004] The purpose of this invention is to provide a press-type lever-linked dual-channel flow regulating bottle cap to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A press-type lever-linked dual-channel flow regulating bottle cap, comprising: The cap has a sealing surface at its top, and an overflow hole is formed on the sealing surface; the bottom of the cap has a connecting part for connecting with the bottle mouth. The valve core is rotatably mounted at the flow passage via a pivot; the bottom of the valve core is a rectangular structure, one end of which is a pressing end, and fan-shaped wing plates are symmetrically arranged on both sides of the pressing end; the other end of the rectangular structure is a liquid outlet end; the flow passage forms an air inlet channel on one side corresponding to the fan-shaped wing plate, and an outlet channel on the opposite side; The top of the valve core, near the pressing end, has an arc-shaped structure. The arc-shaped structure has multiple teeth along the width direction of the valve core. The teeth are used to engage with the side wall of the air intake channel to maintain the flow rate at multiple levels. A dustproof flip cover, hinged to the cover body; The pressing end and the liquid outlet end are located on opposite sides of the pivot, and the angular displacement directions of the pressing end and the liquid outlet end around the pivot are opposite and equal in magnitude. The pivot has an elastic restoring force, and the toothed groove and the side wall of the air intake channel have an elastic meshing structure.

[0006] A pressing part is fixedly provided on the inner side of the dustproof flip cover. When the dustproof flip cover is fastened, the pressing part presses against the top surface of the valve core.

[0007] The clamping part is a boss structure, and its shape is rectangular, circular or semi-circular.

[0008] The sealing surface is inclined, and the height of one end of the liquid outlet channel is lower than the height of one end of the air inlet channel.

[0009] The angle of inclination of the sealing surface relative to the horizontal plane is 1° to 10°.

[0010] The pivot is a cuboid hinge made of flexible plastic, symmetrically arranged on both sides of the bottom of the valve core, and its end is fixedly connected to the sealing surface. The thickness of the pivot is greater than the thickness of the fan-shaped wing plate.

[0011] The teeth extend along the width direction of the valve core and are evenly distributed on the arc surface of the arc-shaped structure.

[0012] The cross-section of the tooth pattern is semi-circular, triangular, or trapezoidal.

[0013] The bottom edge of the valve core is connected to the flow hole via a weak zone, which is configured to tear when the valve core is first pressed.

[0014] The bottom edge of the valve core is separated from the flow hole.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1) This invention drives the valve core to rotate around the pivot by pressing the pressing end of the valve core, so that the air inlet channel and the liquid outlet channel open synchronously. Moreover, the pressing depth is linearly positively correlated with the opening area of ​​the dual channels, thus combining opening and flow regulation into one, without the need for separate operation or additional adjustment parts. At the same time, the independently set air inlet channel maintains the air pressure balance in the bottle when tilting, avoiding the liquid gushing or stopping caused by negative pressure in the traditional single-hole structure, making the tilting process smooth and controllable.

[0016] 2) This invention features teeth on the top of the valve core. These teeth engage with the sidewall of the air intake channel, locking the valve core in its current tilted position after pressing stops. This allows for multiple flow rate settings without continuous force from the user. Reverse pressing of the outlet or upward flicking of the pressing end disengages the teeth, and the valve core automatically resets under the elastic restoring force of the pivot. This flow rate holding structure eliminates the need for additional ratchet wheels, springs, or other independent parts, simplifying assembly and reducing costs.

[0017] 3) This invention provides a pressing part on the inside of the dustproof flip cover, which presses against the top surface of the valve core to force it to the closed position when it is fastened. It is especially suitable for scenarios such as oil cans or corrosive liquids, which can effectively prevent liquid from flowing out and getting dirty hands due to accidental opening, and at the same time prevent leakage caused by accidental squeezing during transportation or carrying.

[0018] 4) The bottom connecting part of the cap of this invention can adopt an internal thread or a retaining ring boss, respectively adapting to both threaded connections and pressure-sealed bottle types. For bottles without a sealing aluminum film, the bottom edge of the valve core is connected to the flow hole through a weak area. Upon initial pressing, the weak area tears flat, and the torn edge can still engage with the teeth to achieve a locking position. For bottles with a sealing aluminum film, the valve core and the flow hole are separately configured, allowing the user to use it directly after removing the aluminum film. The overall structure is compact, the manufacturing cost is low, and it has strong versatility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the back structure of Embodiment 1 of the present invention.

[0020] Figure 2 This is a front structural diagram of Embodiment 1 of the present invention.

[0021] Figure 3 This is a top view of Embodiment 1 of the present invention.

[0022] Figure 4 This is a schematic diagram of the valve core structure in Embodiment 1 of the present invention.

[0023] Figure 5 This is a cross-sectional structural diagram of Embodiment 1 of the present invention.

[0024] Figure 6 This is a schematic diagram of the valve core structure in Embodiment 1 of the present invention.

[0025] Figure 7 This is a schematic diagram of the bottom structure of Embodiment 1 of the present invention.

[0026] Figure 8 This is a schematic diagram of the bottom structure of Embodiment 2 of the present invention.

[0027] The attached figures are numbered and named as follows: 1. Valve core; 2. Sealing surface; 3. Toothed pattern; 4. Dustproof flip cover; 5. Cover body; 6. Pressing part; 7. Inner ring; 8. Fan-shaped wing plate; 9. Flow hole; 10. Pivot; 11. Connecting part. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0030] Example 1 like Figure 1-6 As shown, this invention provides a press-type lever-linked dual-channel flow regulating bottle cap, including a cap body 5, a valve core 1, and a dustproof flip cap 4. The cap body 5 is generally cylindrical, with a sealing surface 2 at its top. A flow-through hole 9 is formed on the sealing surface 2, penetrating the sealing surface 2 to connect the inside and outside of the bottle. A connecting part 11 is provided at the bottom of the cap body 5 for connecting to the bottle opening. In this embodiment, the outer diameter of the cap body 5 is 28–35 mm, and its height is 35–45 mm; the length of the dustproof flip cap 4 matches the outer diameter of the cap body 5, and its thickness is 0.8–1.2 mm.

[0031] The valve core 1 is rotatably mounted at the flow passage 9 via a pivot 10. The bottom of the valve core 1 has a rectangular planar structure, with one end being the pressing end and the other end being the liquid outlet end. Symmetrically arranged on both sides of the pressing end are fan-shaped vanes 8, whose arc-shaped edges mate with the sidewall of the flow passage 9. The flow passage 9 forms an air inlet channel on the side corresponding to the fan-shaped vane 8, and a liquid outlet channel on the opposite side. In the initial state, the bottom of the valve core 1 is in contact with the sealing surface 2, sealing the flow passage 9. In this embodiment, the valve core has a length of 15–25 mm, a width of 5–7 mm, and a height of 5–7 mm.

[0032] The sealing surface 2 is inclined, with its height at the liquid outlet end lower than that at the air inlet end, to ensure smooth liquid flow during pouring and reduce residue inside the cap. In this embodiment, the inclination angle of the sealing surface 2 relative to the horizontal plane is 1° to 10°, preferably 3° to 5°.

[0033] The top of the valve core 1, near the pressing end, has an arc-shaped structure with multiple teeth 3 along its width. The teeth 3 extend in the same direction as the width of the valve core 1 and are evenly distributed on the arc surface of the arc-shaped structure. The cross-section of the teeth 3 is semi-circular, triangular, or trapezoidal, used to engage with the sidewall edge of the intake passage to maintain flow at multiple speeds. In this embodiment, the tooth pitch of the teeth 3 is 0.5–1.5 mm, preferably 1.0 mm; the tooth depth is 0.2–0.8 mm, preferably 0.5 mm; and the number of teeth is 3–5, preferably 4.

[0034] The pivot 10 is a cuboid hinge made of flexible plastic, symmetrically arranged on both sides of the bottom of the valve core 1, with its end fixedly connected to the sealing surface 2. The thickness of the pivot 10 is greater than the thickness of the fan-shaped wing plate 8, thus providing sufficient torsional elasticity and restoring force when the valve core 1 rotates. When the pressing end of the valve core 1 is pressed, the pivot 10 undergoes torsional deformation, causing the valve core 1 to rotate around the axis of the pivot 10. At this time, the pressing end moves downward, the liquid outlet end tilts upward, and the air inlet channel and the liquid outlet channel open simultaneously. The angular displacement directions of the pressing end and the liquid outlet end are opposite and equal in magnitude, so that the opening area of ​​both channels increases with the increase of the valve core rotation angle, and the pressing depth has a linear relationship with the flow rate. After releasing, the teeth 3 engage with the side wall edge of the air inlet channel, locking the valve core 1 in the current tilted position, achieving position holding. When the liquid outlet end is pressed in the opposite direction or the pressing end is flicked upward, the teeth 3 disengage, and the valve core 1 returns to the closed position under the elastic restoring force of the pivot 10.

[0035] The dustproof flip cover 4 is hinged to the rear side of the cover body 5, and can be flipped up to open or snapped down to close. A pressing part 6 and an inner ring 7 are fixedly provided on the inner side of the dustproof flip cover 4, with the pressing part 6 located inside the inner ring 7. The pressing part 6 is a boss structure, and its shape can be rectangular, circular, or semi-circular. When the dustproof flip cover 4 is snapped closed, the lower surface of the pressing part 6 directly presses against the top surface of the valve core 1, forcibly pressing the valve core 1 into the closed position, so that the bottom of the valve core 1 is in contact with the sealing surface 2. This effectively prevents accidental opening due to transportation or misoperation, and is particularly suitable for scenarios involving oil cans or corrosive liquids, preventing accidental liquid spillage and soiled hands.

[0036] like Figure 7 As shown, in this embodiment, the connecting part 11 has an internal thread, which cooperates with the external thread of the bottle mouth to achieve a threaded connection.

[0037] Example 2 Based on the technology of Embodiment 1, Embodiment 2 differs from Embodiment 1 in that: Figure 8 As shown, the connecting part 11 consists of multiple retaining ring protrusions, which are connected to the bottle mouth by a capping sealing method, suitable for different bottle type requirements.

[0038] Example 3 (Unsealed aluminum foil bottle) When there is no sealing aluminum film on the bottle body, the bottle cap is connected to the bottle mouth via a compression seal or threaded connection. In this case, the bottom edge of the valve core 1 is connected to the corresponding edge of the flow hole 9 through a thin, weak area. The thin, weak area is a locally thinned plastic layer, 0.2–0.4 mm thick, configured to tear upon the first press of the valve core 1. Upon first use, the user presses the pressing end of the valve core 1, causing the valve core 1 to rotate downwards around the pivot 10, tearing the thin, weak area, opening the flow hole 9, and simultaneously opening the liquid outlet channel. The edge of the torn thin area has a certain degree of elasticity, which can cooperate with the toothed 3 to achieve a locking position. The thin area will not recover thereafter, but the valve core 1 can still be repeatedly pressed to adjust the flow rate.

[0039] Example 4 (Bottle with sealed aluminum foil) When the bottle body has a sealing aluminum film, the bottle cap is screwed onto the bottle mouth via a threaded connection. At this time, the bottom edge of the valve core 1 is separated from the flow hole 9. Before use, the user should unscrew the bottle cap, tear off the sealing aluminum film at the bottle mouth, and then screw the bottle cap back on. When in use, simply press the valve core 1; the valve core 1 will rotate freely to open the dual channels.

[0040] In use, the user flips open the dust cover 4 and presses the pressing end of the valve core 1. The valve core 1 rotates downward around the pivot 10, the fan-shaped wing 8 sinks, and the air intake channel opens; simultaneously, the liquid outlet end of the valve core 1 tilts upward, opening the liquid outlet channel. Continuing to increase the pressing pressure increases the rotation angle of the valve core 1, and the opening area of ​​the dual channels increases synchronously, increasing the flow rate. After releasing the finger, the teeth 3 engage with the edge of the air intake channel sidewall, locking the valve core 1 at the current angle and maintaining the flow rate. To close, the user presses the liquid outlet end of the valve core 1 in the opposite direction or flicks the pressing end upward, causing the teeth 3 to disengage, and the valve core 1 returns to its original position under the elastic restoring force of the pivot 10. Finally, the dust cover 4 is fastened, and the pressing part 6 assists in pressing the valve core 1 to ensure complete closure.

Claims

1. A press-type lever-linked dual-channel flow regulating bottle cap, characterized in that, include: The cap (5) has a sealing surface (2) at its top, and an overflow hole (9) is provided on the sealing surface (2); the bottom of the cap (5) has a connecting part (11) for connecting with the bottle mouth. The valve core (1) is rotatably mounted on the flow hole (9) via a pivot (10); the bottom of the valve core (1) is a rectangular structure, one end of the rectangular structure is a pressing end, and fan-shaped wing plates (8) are symmetrically arranged on both sides of the pressing end; the other end of the rectangular structure is a liquid outlet end; the flow hole (9) and the fan-shaped wing plate (8) form an air inlet channel on one side, and an outlet channel on the other side; The top of the valve core (1) near the pressing end is an arc-shaped structure. The arc-shaped structure is provided with multiple teeth (3) along the width direction of the valve core (1). The teeth (3) are used to engage with the side wall of the air intake channel to achieve flow maintenance at multiple gears. A dustproof flip cover (4) is hinged to the cover body (5); The pressing end and the liquid outlet end are located on both sides of the pivot (10), and the pressing end and the liquid outlet end have opposite angular displacement directions and equal magnitudes around the pivot (10). The pivot (10) has an elastic restoring force, and the tooth pattern (3) and the side wall of the air intake channel have an elastic meshing structure.

2. The press-type lever-linked dual-channel flow regulating bottle cap according to claim 1, characterized in that: A pressing part (6) is fixedly provided on the inner side of the dustproof flip cover (4). When the dustproof flip cover (4) is fastened, the pressing part (6) presses against the top surface of the valve core (1).

3. The press-type lever-linked dual-channel flow regulating bottle cap according to claim 2, characterized in that: The pressing part (6) is a boss structure, and its shape is rectangular, circular or semi-circular.

4. The press-type lever-linked dual-channel flow regulating bottle cap according to claim 1, characterized in that: The sealing surface (2) is inclined, and the height of one end of the liquid outlet channel is lower than the height of one end of the air inlet channel.

5. A press-type lever-linked dual-channel flow regulating bottle cap according to claim 4, characterized in that: The angle of inclination of the sealing surface (2) relative to the horizontal plane is 1° to 10°.

6. A press-type lever-linked dual-channel flow regulating bottle cap according to claim 1, characterized in that: The pivot (10) is a cuboid hinge made of flexible plastic, symmetrically arranged on both sides of the bottom of the valve core (1), and its end is fixedly connected to the sealing surface (2). The thickness of the pivot (10) is greater than the thickness of the fan-shaped wing plate (8).

7. A press-type lever-linked dual-channel flow regulating bottle cap according to claim 1, characterized in that: The teeth (3) extend along the width direction of the valve core (1) and are evenly distributed on the arc surface of the arc structure.

8. A press-type lever-linked dual-channel flow regulating bottle cap according to claim 7, characterized in that: The cross-section of the tooth pattern (3) is semi-circular, triangular or trapezoidal.

9. A press-type lever-linked dual-channel flow regulating bottle cap according to claim 1, characterized in that: The bottom side edge of the valve core (1) is connected to the flow hole (9) through a weak area, which is configured to tear when the valve core (1) is first pressed.

10. A press-type lever-linked dual-channel flow regulating bottle cap according to claim 1, characterized in that: The bottom edge of the valve core (1) is separated from the flow hole (9).

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