CN-224225577-U - Pressure-resistant carbonic acid bottle bottom structure

CN224225577UCN 224225577 UCN224225577 UCN 224225577UCN-224225577-U

Abstract

The utility model discloses a pressure-resistant carbonic acid bottle bottom structure, which relates to the technical field of packaging containers and comprises a concave curved surface positioned in the center of a bottle bottom and a plurality of convex supporting claws uniformly distributed around the concave curved surface in a circumferential direction, wherein the root parts of the convex supporting claws are connected with the edge of the concave curved surface through transition arcs with continuous curvature, the convex supporting claws gradually widen from the root parts to the top parts along the radial direction of the bottle bottom, and the included angle formed by projections of opposite side surfaces of two adjacent convex supporting claws on a plane perpendicular to the axis of a bottle body is 55-65 degrees. The structure improves the pressure resistance of the bottle bottom by optimizing the geometric design of the bottle bottom, and ensures the uniform stress and the attractive appearance of the bottle bottom.

Inventors

CHEN DONGHAI
Tang Zhuan
HAN CHAO

Assignees

广东现艺精密机械有限公司

Dates

Publication Date: 20260512
Application Date: 20250616

Claims (3)

1. A pressure-resistant carbonic acid bottle bottom structure is characterized by comprising an inner concave curved surface (1) positioned in the center of a bottle bottom and a plurality of outer convex supporting claws (2) which are uniformly distributed around the inner concave curved surface (1) in a circumferential direction, wherein the root parts of the outer convex supporting claws (2) are connected with the edge of the inner concave curved surface (1) through transition arcs (3) with continuous curvature, the outer convex supporting claws (2) gradually widen from the root parts to the top parts along the radial direction of the bottle bottom, and an included angle formed by projections of opposite side surfaces (4) of two adjacent outer convex supporting claws (2) on a plane perpendicular to the axis of a bottle body is 55-65 degrees.
2. The pressure-resistant carbonate bottle bottom structure according to claim 1, wherein the curvature radius of the concave curved surface (1) is 20-35 mm.
3. Pressure resistant carbonate bottle bottom structure according to claim 1, characterized in that the outer lugs (2) have six.

Description

Pressure-resistant carbonic acid bottle bottom structure Technical Field The utility model relates to the technical field of packaging containers, in particular to a pressure-resistant carbonic acid bottle bottom structure. Background In the prior art, carbonated bottles are commonly used for storing carbonated beverages, the bottom of which needs to withstand a large internal pressure. However, the conventional carbonic acid bottle bottom design has the problems that the bottle bottom is insufficient in structural strength, convex bottom or breakage is easy to occur under high-pressure environment, the service life and safety of the bottle body are affected, the bottle bottom materials are unevenly distributed, stress is uneven, the pressure resistance of the bottle bottom is further reduced, the existing design is difficult to consider between attractiveness and functionality, and the market demand for high-quality packaging is difficult to meet. Therefore, there is a need for a carbonate bottle bottom structure that can improve the strength of the bottle bottom, evenly distribute the material, and have both aesthetic properties. Disclosure of utility model The present utility model is to provide a pressure-resistant carbonate bottle bottom structure capable of alleviating the above-mentioned problems. In order to alleviate the problems, the technical scheme adopted by the utility model is as follows: A pressure-resistant carbonic acid bottle bottom structure comprises an inward concave curved surface in the center of a bottle bottom and a plurality of outward convex supporting claws uniformly distributed around the circumferential direction of the inward concave curved surface, wherein the root parts of the outward convex supporting claws are connected with the edges of the inward concave curved surface through transition arcs with continuous curvature, the outward convex supporting claws gradually widen from the root parts to the top parts along the radial direction of the bottle bottom, and an included angle formed by projection of opposite side surfaces of two adjacent outward convex supporting claws on a plane perpendicular to the axis of a bottle body is 55-65 degrees. Preferably, the curvature radius of the concave curved surface is 20-35 mm. Preferably, the outer cam has six. Compared with the prior art, the utility model has the beneficial effects that: 1) Through the combined design of concave curved surface and evagination claw, the bottle bottom can disperse internal pressure better. The concave curved surface provides support for the central region, while the convex fingers, through their geometry and distribution, uniformly transmit pressure to various portions of the bottle bottom, thereby significantly improving the pressure resistance of the bottle bottom and reducing the risk of bulging or cracking. 2) The design of the outer convex supporting claws enables the bottom mold material of the bottle blowing to be more evenly distributed, the outer convex supporting claws gradually widen from the root to the top along the radial direction of the bottle bottom, the gradual change design ensures that materials are evenly distributed in all areas of the bottle bottom, the problem that the materials are locally piled up or weak is avoided, and the integral strength of the bottle bottom is further enhanced. 3) The geometric design of the outer convex supporting claws and the inner concave curved surface not only improves the structural strength of the bottle bottom, but also enhances the visual aesthetic feeling of the bottle bottom, the outer convex supporting claws are uniformly distributed and gradually changed, and the inner concave curved surface is smoothly transited, so that the appearance of the bottle bottom is more exquisite, and the market competitiveness of products is improved. 4) The projection of the opposite side surfaces of the outer supporting claws on a plane perpendicular to the axis of the bottle body forms an included angle of 55-65 degrees, and the design of the angle ensures the stability of the bottle bottom under different specifications and pressure conditions. In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic view of a pressure-resistant carbonate bottle bottom structure according to an embodiment; in the figure, the curved surface