Rubber threaded bottle cap

Abstract

The utility model discloses a rubber threaded bottle cap, and relates to the field of food packaging bottle cap design and manufacturing. The bottle cap comprises a bottle cap body, a rubber sealing gasket is fixedly arranged in the bottle cap body and located on the inner side of the bottle cap body, when the bottle cap body is connected with a bottle opening, the rubber sealing gasket is attached to the bottle opening, rubber threads are fixedly arranged in the bottle cap body, and the rubber threads are arranged on the inner wall in the circumferential direction of the bottle cap body. The bottle cap has the characteristic that the bottle cap can be easily twisted and opened.

Description

Technical Field

[0001] The utility model relates to the field of design and manufacture of food packaging bottle caps, in particular to a rubber threaded bottle cap. Background Art

[0002] Currently, most food packaging bottle caps on the market are made of metal and are sealed by screwing onto the bottle mouth. This design effectively maintains a vacuum inside the bottle under high temperature and high pressure environments, thereby extending the shelf life of the food.

[0003] Existing food packaging bottle caps mainly include the following types: Traditional metal bottle caps: These are made of metal with a rubber seal inside, which screws onto the bottle opening. They offer excellent sealing performance and low cost. Plastic bottle caps: These are made of plastic with a rubber seal inside, which screws onto the bottle opening. They offer advantages such as light weight and ease of processing. Bottle caps with pull rings: These are metal caps with a pull ring that facilitates opening. They offer the advantage of being relatively easy to open.

[0004] With respect to the above-mentioned related technologies, existing threaded bottle cap designs generally have the problem of being difficult to open, especially when a large pressure difference is formed inside and outside the bottle, and a large force needs to be applied to unscrew it. Utility Model Content

[0005] In order to improve the opening ease of the bottle cap and reduce the force required to open the bottle cap, the present application provides a rubber threaded bottle cap.

[0006] This application provides a rubber threaded bottle cap, which adopts the following technical solution:

[0007] A rubber threaded bottle cap comprises a bottle cap body, wherein a rubber sealing gasket is fixedly provided in the bottle cap body and located on the inner side of the bottle cap body. When the bottle cap body is connected to the bottle mouth, the rubber sealing gasket fits the bottle mouth. A rubber thread is fixedly provided in the bottle cap body and arranged on the inner wall along the circumference of the bottle cap body. When the bottle cap is opened, the rubber thread undergoes elastic deformation, thereby reducing the resistance required to rotate the bottle cap.

[0008] By adopting the above technical solution, when the bottle cap body is connected to the bottle body, the rubber thread fits tightly with the bottle body thread, and the sealing is good, which prevents the liquid in the bottle from leaking. When the bottle cap body is removed, the bottle cap is rotated, and the rubber thread is deformed under the force, and a gap is generated between the rubber thread and the bottle body thread, making it easy to open the bottle cap.

[0009] Optionally, a hidden groove is formed at the upper end of the bottle cap body, and the bottle cap body is provided with a twisting piece, one end of the twisting piece is rotatably connected to the inner wall of the hidden groove, and the shape of the twisting piece matches the hidden groove.

[0010] By adopting the above technical solution, when opening the bottle cap, the twisting piece is taken out from the hidden groove, and the twisting piece is held to apply force to the bottle cap body, which is conducive to twisting the bottle cap more easily.

[0011] Optionally, a connecting piece is fixedly provided at the lower end portion of the bottle cap body, and a limiting ring is provided at one end of the connecting piece away from the bottle cap body.

[0012] By adopting the above technical solution, the limiting ring sleeve and the bottle body are not easy to fall off, and the connecting piece connects the bottle cap body and the limiting ring, which is helpful to prevent the bottle cap from falling off when opening the bottle cap.

[0013] Optionally, the limiting ring is rotatably connected to a lever, and when the bottle cap body is connected to the bottle mouth, one end of the lever is located in the bottle cap body and fits against the bottle mouth.

[0014] By adopting the above technical solution, by pressing the side of the lever close to the limiting ring, the lever on the side of the bottle mouth will tilt up, so that air is generated between the bottle cap body and the bottle mouth, balancing the air pressure, which is conducive to opening the bottle cap more conveniently.

[0015] Optionally, a leak-proof strip is provided at the lower end of the rubber sealing gasket, which is arranged circumferentially along the rubber sealing gasket, and there is a certain gap between the leak-proof strip and the bottle cap body. When the bottle cap body is connected to the bottle mouth, the leak-proof strip is in the bottle mouth and fits with the bottle mouth.

[0016] By adopting the above technical solution, when the bottle cap body is connected to the bottle mouth, the leak-proof strip is located inside the bottle mouth and fits tightly with the bottle mouth, thereby preventing liquid leakage and improving the practicality of the bottle cap.

[0017] Optionally, a vertical downward pressing groove is provided at the upper end of the bottle cap body toward the position corresponding to the leak-proof strip. When the bottle cap body is connected to the bottle mouth, the leak-proof strip is located in the pressing groove and fits against the inner wall of the pressing groove. The pressing groove is used to assist the leak-proof strip in fitting to the bottle mouth.

[0018] By adopting the above technical solution, the pressed groove assists the rubber sealing gasket to fit the bottle mouth, thereby further preventing the liquid in the bottle from leaking.

[0019] Optionally, the bottle cap body is made of aluminum alloy.

[0020] By adopting the above technical solution, the aluminum alloy bottle cap body has good corrosion resistance and high strength, which is conducive to extending the service life of the bottle cap.

[0021] Optionally, the rubber sealing gasket is made of food-grade silicone rubber, and the rubber thread is made of the same food-grade silicone rubber as the rubber sealing gasket to ensure a close fit with the bottle mouth.

[0022] By adopting the above technical solution, the food-grade silicone rubber has excellent temperature resistance and sealing performance, can better fit closely with the bottle mouth, and is conducive to improving the sealing of the bottle cap.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When the bottle cap body is connected to the bottle body, the rubber thread fits tightly with the bottle body thread, providing good sealing to prevent leakage of the liquid in the bottle. When the bottle cap body is removed and the bottle cap is rotated, the rubber thread is deformed under stress, creating a gap between the rubber thread and the bottle body thread, making it easier to open the bottle cap.

[0025] 2. When opening the bottle cap, remove the twisting piece from the hidden groove, hold the twisting piece and apply force to the bottle cap body, which will make it easier to twist the bottle cap;

[0026] 3. When the bottle cap body is connected to the bottle mouth, the leak-proof strip is located inside the bottle mouth and fits tightly with the bottle mouth, preventing liquid leakage and improving the practicality of the bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a rubber thread bottle cap.

[0028] Figure 2 This is a schematic diagram intended to highlight the structure of the rubber gasket.

[0029] Figure 3 It is a schematic diagram of the main structure of the bottle cap of Example 2.

[0030] Explanation of the accompanying reference numerals: 1. Bottle cap body; 11. Hidden groove; 12. Twisting member; 13. Pressing groove; 2. Rubber sealing gasket; 21. Leakage-proof strip; 3. Rubber thread; 4. Connecting member; 5. Limiting ring; 51. Lever. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] The embodiment of the present application discloses a rubber threaded bottle cap.

[0033] Example 1

[0034] Reference Figure 1 and Figure 2, a rubber threaded bottle cap comprises a bottle cap body 1, a rubber sealing gasket 2 is fixedly provided inside the bottle cap body 1, and the rubber sealing gasket 2 is located on the inner side of the bottle cap body 1. When the bottle cap body 1 is connected to the bottle mouth, the rubber sealing gasket 2 fits with the bottle mouth, and the sealing gasket fills the gap between the bottle cap body 1 and the bottle mouth to keep the bottle body airtight. A rubber thread 3 is fixed inside the bottle cap body 1, and the rubber thread 3 is circumferentially arranged on the inner wall of the bottle cap body 1. When the bottle cap is opened, the rubber thread 3 undergoes elastic deformation to reduce the resistance required to rotate the bottle cap. When the bottle cap contacts the bottle mouth, the rubber thread 3 fits tightly with the bottle mouth to prevent gas from entering the bottle. When the bottle cap is opened, the rubber thread 3 is deformed by force, and a gap is generated between the rubber thread 3 and the bottle mouth, making it easy to rotate the bottle cap.

[0035] Reference Figure 1 and Figure 2 A vertical downward-facing groove 13 is provided at the upper end of the bottle cap body 1, corresponding to the leak-proof strip 21. This groove 13 is used to squeeze the rubber gasket 2, securing the connection between the bottle cap body 1 and the bottle opening. The bottle cap body 1 is made of aluminum alloy, which offers excellent corrosion resistance and high strength. The rubber gasket 2 is made of food-grade silicone rubber, and the rubber threads 3 are made of the same food-grade silicone rubber as the rubber gasket 2, which has excellent temperature resistance and sealing properties.

[0036] Reference Figure 2 The lower end of the rubber sealing gasket 2 is provided with a leak-proof strip 21, which is arranged circumferentially along the rubber sealing gasket 2. The leak-proof strip 21 is used to prevent liquid in the bottle from leaking. There is a gap between the leak-proof strip 21 and the bottle cap body 1. When the bottle cap body 1 is connected to the bottle mouth, the leak-proof strip 21 is in the bottle mouth and fits with the bottle mouth, and the rubber sealing gasket 2 fits with the bottle mouth. The leak-proof strip 21 and the rubber sealing gasket 2 cooperate to fit tightly with the bottle mouth to prevent liquid leakage and air from entering the bottle.

[0037] The implementation principle of the first embodiment of the present application is: when the bottle cap body 1 is connected to the bottle mouth, the rubber thread 3 is hinged to the bottle mouth thread, and the rubber sealing gasket 2 and the leak-proof strip 21 fit with the bottle mouth to prevent liquid leakage and air from entering the bottle. When opening the bottle cap, the bottle cap is rotated. When the bottle cap body 1 rotates, the rubber thread 3 is deformed by the force. At this time, a gap is generated between the rubber thread 3 and the bottle mouth thread, which further balances the air pressure inside and outside the bottle, making it easy to remove the bottle cap.

[0038] Example 2

[0039] Reference Figure 3A hidden groove 11 is provided at the upper end of the bottle cap body 1, and a twisting piece 12 is provided on the bottle cap body 1. When opening the bottle cap, the twisting piece 12 is easy to hold and the force is easy to apply. The twisting piece 12 is driven by the force to drive the bottle cap body 1 to rotate. One end of the twisting piece 12 is rotatably connected to the inner wall of the hidden groove 11. The shape of the twisting piece 12 matches the hidden groove 11. In the normal state, the twisting piece 12 is located in the hidden groove 11 and does not take up space.

[0040] Reference Figure 3 The lower end of the bottle cap body 1 is fixed with a connector 4. The end of the connector 4 away from the bottle cap body 1 is provided with a limiting ring 5. The connector 4 connects the limiting ring 5 and the bottle cap body 1. The limiting ring 5 is sleeved outside the bottle mouth. When the bottle cap is removed, the connector 4 and the limiting ring 5 cooperate to prevent the bottle cap body 1 from falling and being lost. The limiting ring 5 is rotatably connected to a lever 51. When the bottle cap body 1 is connected to the bottle mouth, one end of the lever 51 is located inside the bottle cap body 1 and fits with the bottle mouth. Before opening the bottle cap, press the end of the lever 51 away from the bottle mouth, and the end fits with the bottle mouth to tilt the bottle cap body 1 a certain distance, allowing air to enter the bottle, balancing the air pressure inside and outside the bottle, and facilitating the opening of the bottle cap.

[0041] The implementation principle of the second embodiment of the present application is: when opening the bottle cap body 1, press the lever 51 to create a certain gap between the bottle cap body 1 and the bottle mouth, and the air pressure inside and outside the bottle is balanced. Take out the twisting piece 12 and hold it, apply force to the twisting piece 12, and the twisting piece 12 rotates to drive the bottle cap body 1 to rotate. When the bottle cap body 1 rotates, the rubber thread 3 is deformed by the force, and the bottle cap is easily removed. After the bottle cap is removed, the limit ring 5 is located at the lower end of the bottle mouth, and the connecting piece 4 connects the bottle mouth and the bottle cap body 1 to prevent the bottle cap body 1 from falling.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A rubber threaded bottle cap, comprising a bottle cap body (1), characterized in that: A rubber sealing gasket (2) is fixedly provided in the bottle cap body (1), and the rubber sealing gasket (2) is located on the inner side of the bottle cap body (1). When the bottle cap body (1) is connected to the bottle mouth, the rubber sealing gasket (2) fits the bottle mouth. A rubber thread (3) is fixedly provided in the bottle cap body (1), and the rubber thread (3) is arranged on the inner wall along the circumference of the bottle cap body (1). When the bottle cap is opened, the rubber thread (3) undergoes elastic deformation, thereby reducing the resistance required for rotating the bottle cap. A hidden groove (11) is provided at the upper end of the bottle cap body (1). The bottle cap body (1) is provided with a twisting piece (12), and one end of the twisting piece (12) is rotatably connected to the inner wall of the hidden groove (11). The shape of the twisting piece (12) matches the hidden groove (11).

2. The rubber thread bottle cap according to claim 1, characterized in that: A connecting piece (4) is fixedly provided at the lower end of the bottle cap body (1), and a limiting ring (5) is provided at one end of the connecting piece (4) away from the bottle cap body (1).

3. The rubber thread bottle cap according to claim 2, characterized in that: The limiting ring (5) is rotatably connected to a lever (51). When the bottle cap body (1) is connected to the bottle mouth, one end of the lever (51) is located inside the bottle cap body (1) and fits against the bottle mouth.

4. The rubber thread bottle cap according to claim 1, characterized in that: The lower end of the rubber sealing gasket (2) is provided with a leak-proof strip (21), which is arranged along the circumference of the rubber sealing gasket (2), and a gap exists between the leak-proof strip (21) and the bottle cap body (1). When the bottle cap body (1) is connected to the bottle mouth, the leak-proof strip (21) is located in the bottle mouth and fits with the bottle mouth.

5. The rubber thread bottle cap according to claim 1, characterized in that: The upper end of the bottle cap body (1) is provided with a vertical downward pressing groove (13) at a position corresponding to the leak-proof strip (21). When the bottle cap body (1) is connected to the bottle mouth, the leak-proof strip (21) is located in the pressing groove (13) and fits with the inner wall of the pressing groove (13). The pressing groove (13) is used to assist the leak-proof strip (21) in fitting with the bottle mouth.

6. The rubber thread bottle cap according to claim 1, characterized in that: The bottle cap body (1) is made of aluminum alloy.

7. The rubber thread bottle cap according to claim 1, characterized in that: The rubber sealing gasket (2) is made of food-grade silicone rubber, and the rubber thread (3) is made of the same food-grade silicone rubber as the rubber sealing gasket (2), ensuring a tight fit with the bottle mouth.

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