A twist-resistant plastic bottle cap

Abstract

The utility model relates to the technical field of plastic products, especially to a torsion-resistant plastic bottle cap, the utility model provides such a kind of torsion-resistant plastic bottle cap, it includes: bottle cap body, the inside vertical side wall of bottle cap body is equipped with internal thread, the inside top middle position of bottle cap body is equipped with fixed ring, the inside diameter of fixed ring is same with the outside diameter of plastic bottle mouth, the inside top middle position of bottle cap body is equipped with sealing sheet, the sealing sheet is located fixed ring middle position, the sealing sheet diameter is same with fixed ring inside diameter.In the process of using bottle cap, inside reinforcing column and outer reinforcing column play auxiliary reinforcing effect to the vertical direction of bottle cap body side wall, can enhance the strength of bottle cap body side wall, make it can bear greater torsion, at the same time, the connection of inside reinforcing column and internal thread can effectively disperse torsion, avoid the connection of internal thread and bottle cap body to appear problem due to torsion too big.

Description

Technical Field

[0001] This utility model relates to the field of plastic products technology, and in particular to an anti-torsion plastic bottle cap. Background Technology

[0002] Plastic bottle caps are an important structure for sealing plastic bottles. Existing plastic bottle caps are usually connected and fixed to the bottle body by threads. This threaded connection method can ensure that the two are tightly connected and prevent liquid leakage.

[0003] However, common plastic bottle cap structures usually only have the cap body and the threaded structure on the inside of the cap. Users can tighten the cap onto the bottle by grasping and rotating it. If the cap material is poor or the side wall is too thin, the torque applied by the user to the cap may damage the cap body or the threaded structure, thus failing to achieve an effective seal on the plastic bottle.

[0004] Therefore, it is necessary to design a simple, torsion-resistant plastic bottle cap. Utility Model Content

[0005] To overcome the drawback that if the bottle cap material is poor or the sidewall is too thin, the torque applied by the user to the bottle cap may damage the bottle cap body or the thread structure, thus failing to achieve an effective seal on the plastic bottle, the technical problem is to provide an anti-torsion plastic bottle cap.

[0006] The technical solution of this utility model is: an anti-torsion plastic bottle cap, comprising: a bottle cap body and an internal thread, wherein the internal thread is provided on the vertical side wall inside the bottle cap body, a fixing ring is provided at the middle position of the top of the inner side of the bottle cap body, a sealing piece is provided at the middle position of the top of the inner side of the bottle cap body, multiple inner reinforcing posts are evenly spaced on the vertical side wall inside the bottle cap body, and outer reinforcing posts are provided on the outer side of the bottle cap body directly opposite the inner reinforcing posts, and a reinforcing ring protrusion is provided on the vertical side of the outer side of the bottle cap body.

[0007] Furthermore, the thread cross-section of the internal thread is a rectangle with beveled angles on both the upper and lower sides near the thread center.

[0008] Furthermore, the inner reinforcing post extends beyond half the width of the internal thread on the side closest to the center of the bottle cap.

[0009] Furthermore, it also includes: an external thread protrusion, wherein the bottle cap has an external thread protrusion on its outer vertical side.

[0010] Furthermore, the helical direction of the external thread protrusion is opposite to that of the internal thread.

[0011] The beneficial effects are as follows: During the use of the bottle cap, the inner and outer reinforcing posts provide auxiliary reinforcement to the vertical direction of the bottle cap body's sidewalls, enhancing the strength of the bottle cap body's sidewalls and enabling it to withstand greater torque. At the same time, the connection between the inner reinforcing post and the internal thread can effectively disperse the torque, preventing problems with the connection between the internal thread and the bottle cap body due to excessive torque. The outer reinforcing post is protruding on the outside of the bottle cap body, allowing the user to control the bottle cap body to rotate on the plastic bottle without using more force, preventing damage caused by excessive force applied by the user, such as the bottle cap being squeezed and twisted. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0014] Figure 3 This is a partial three-dimensional cross-sectional view of the present invention.

[0015] Figure 4 This is an exploded three-dimensional view of the bottle cap body, retaining ring, and sealing sheet of this utility model.

[0016] In the attached diagram, the following are the reference numerals: 1 - bottle cap body, 2 - internal thread, 3 - retaining ring, 4 - sealing plate, 5 - inner reinforcing post, 51 - outer reinforcing post, 6 - reinforcing ring protrusion, and 7 - external thread protrusion. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0018] Example 1 like Figures 1 to 4 As shown, this utility model provides an anti-torsion plastic bottle cap, specifically including a bottle cap body 1, an internal thread 2, a fixing ring 3, a sealing sheet 4, an inner reinforcing post 5, an outer reinforcing post 51, and a reinforcing ring protrusion 6. Among them, the bottle cap body 1 has an internal thread 2 on the vertical side wall inside, and the bottle cap body 1 is connected and fixed to the plastic bottle body through the internal thread. The bottle cap body 1 has a fixing ring 3 at the middle of the top inner side. The inner diameter of the fixing ring 3 is the same as the outer diameter of the bottle mouth. The bottle cap body 1 has a sealing piece 4 at the middle of the top inner side. The sealing piece 4 is located in the middle of the fixing ring 3. The diameter of the sealing piece 4 is the same as the inner diameter of the fixing ring 3. The fixing ring 3 and the bottle cap body 1 work together to squeeze the sealing piece 4 between the bottle cap body 1 and the bottle mouth, thus sealing the bottle mouth and further ensuring the airtightness of the contents inside the bottle. Among them, multiple inner reinforcing columns 5 are evenly spaced on the vertical sidewall inside the bottle cap body 1, and outer reinforcing columns 51 are provided on the outer side of the bottle cap body 1 directly opposite the inner reinforcing columns 5, so as to enhance the strength of the sidewall of the bottle cap body 1 and improve its torsional resistance. Among them, the bottle cap body 1 has two reinforcing ring protrusions 6 on its outer vertical side to enhance the strength of the side wall of the bottle cap body 1 in the horizontal direction.

[0019] For example, the bottle cap body 1 is connected and fixed to the bottle cap via the internal thread 2. The fixing ring 3 and sealing plate 4 on the bottle cap body 1 can be fitted onto the surface and outside of the plastic bottle opening after the bottle cap is connected and fixed to the bottle body. The fixing ring 3 and the bottle cap body 1 together seal the bottle opening. During this process, the inner reinforcing post 5 and the outer reinforcing post 51 can play an auxiliary role in reinforcing the vertical direction of the side wall of the bottle cap body 1. When the user twists the bottle cap body 1, the inner reinforcing post 5 and the outer reinforcing post 51 can prevent the bottle cap body 1 from being damaged due to its material or thin side wall, which cannot withstand the torque, thus preventing the plastic bottle from being sealed. In addition, the connection between the inner reinforcing post 5 and the internal thread 2 can further enhance the firmness of the internal thread 2 and prevent damage to the connection between the internal thread 2 and the bottle cap body 1 due to excessive torque. The outer reinforcing post 51, through its protrusion on the outside of the bottle cap body 1, strengthens the side wall of the bottle cap body 1 while making it easier for the user to twist it. The bottle cap body 1 is loosely twisted to prevent the user from needing to use more force to control its rotation on the plastic bottle, thus avoiding damage caused by excessive pressure and twisting. The reinforcing ring protrusion 6 provides auxiliary horizontal reinforcement to the side wall of the bottle cap body 1. The reinforcing ring protrusion 6 is connected to the outer reinforcing post 51, forming a ring-shaped grid structure on the outer surface of the bottle cap body 1. This reinforces both the side and vertical sides of the bottle cap body 1, distributing the force as evenly as possible across the ring. This prevents minor damage to the side of the bottle cap body 1 from being twisted and causing further tearing and damage. In summary, through the vertical and horizontal reinforcement structures and the synergistic effect between the components, the torsional resistance of the bottle cap is comprehensively improved, enhancing not only its sealing and durability but also user convenience.

[0020] In this embodiment, as Figure 3 As shown, the internal thread 2 has a rectangular structure with beveled corners on the upper and lower sides near the center of the thread. This structure can facilitate normal and easy contact and fit between the internal thread 2 and the thread of the plastic bottle mouth, while strengthening the connection between the internal thread 2 and the bottle cap body 1 and the inner reinforcing post 5. This further prevents damage to the connection between the internal thread 2 and the bottle cap body 1. At the same time, the setting of the inner reinforcing post 5, which extends beyond half the width of the internal thread 2 on the side near the center of the bottle cap, further strengthens the connection strength between the inner reinforcing post 5 and the internal thread 2.

[0021] like Figures 1 to 4 As shown, it also includes an external thread protrusion 7. The external thread protrusion 7 is provided on the vertical side of the bottle cap. The external thread protrusion 7 is located between the two reinforcing ring protrusions 6. The helical direction of the external thread protrusion 7 is opposite to the helical direction of the internal thread 2.

[0022] The external thread protrusion 7 can further enhance the rigidity of the bottle cap body 1, and the threaded structure can also cooperate with the external reinforcing post 51 to distribute the force applied to the side of the bottle cap body 1. The structure of the external thread protrusion 7 and the internal thread 2 with opposite spiral directions can form an internal and external intersecting mesh structure on the side wall of the bottle cap body 1. In this way, after the torque is applied to the bottle cap body 1, regardless of whether it is forward or reverse rotation, the force on the side wall of the bottle cap body 1 can be distributed to various places through the external thread protrusion 7 or the internal thread 2 spiral structure, reducing the influence of torque on a single position of the bottle cap, thereby improving the torsional resistance of the bottle cap.

[0023] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A torsion-resistant plastic bottle cap, characterized in that, include: The bottle cap body (1) and the internal thread (2) are provided. The internal thread (2) is provided on the vertical side wall inside the bottle cap body (1). A fixing ring (3) is provided at the middle position of the top inside the bottle cap body (1). A sealing piece (4) is provided at the middle position of the top inside the bottle cap body (1). Multiple internal reinforcing columns (5) are evenly spaced on the vertical side wall inside the bottle cap body (1). External reinforcing columns (51) are provided on the outer side of the bottle cap body (1) directly opposite the internal reinforcing columns (5). A reinforcing ring protrusion (6) is provided on the vertical side outside the bottle cap body (1).

2. The anti-torsion plastic bottle cap as described in claim 1, characterized in that: The internal thread (2) has a cross section that is a rectangle with beveled angles on the upper and lower sides near the center of the thread.

3. The anti-torsion plastic bottle cap as described in claim 2, characterized in that: The inner reinforcing post (5) extends beyond half the width of the inner thread (2) on the side closest to the center of the bottle cap.

4. The anti-torsion plastic bottle cap as described in claim 3, characterized in that, Also includes: External thread protrusion (7): The bottle cap has an external thread protrusion (7) on its vertical side.

5. The anti-torsion plastic bottle cap as described in claim 4, characterized in that: The external thread protrusion (7) has a helical direction opposite to that of the internal thread (2).

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