A general-purpose plastic bucket cover capable of preventing water absorption

CN224690818UActive Publication Date: 2026-08-28CHANGZHOU JULI POLYMER MATERIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521533578.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2026-08-28
Estimated Expiration
2035-07-22

AI Technical Summary

Technical Problem

[0003]本实用新型要解决的技术问题是:为了克服现有技术中桶盖采用HDPE内盖与螺纹外盖组合,但HDPE材质硬度高,难以完全贴合桶口变形,且缺乏吸水监测机制的问题,提供一种可防吸水的通用塑料桶盖子

Benefits of technology

[0011]本实用新型的有益效果是:本实用新型提供的一种可防吸水的通用塑料桶盖子,内盖柔性贴合桶口,弥补塑料桶口变形缝隙;外盖螺纹加压紧机构,形成轴向密封,阻断水汽侵入路径,顶面/侧面干燥剂分区布局,吸附残留水汽,降低桶内湿度,并能够通过顶面/侧面干燥剂的变色情况判断水汽渗入情况。

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Abstract

The utility model relates to the technical field of lid, especially a general plastic bucket lid capable of preventing water absorption, which comprises an outer lid and an inner lid, the bottom surface of the outer lid is provided with a sealing cavity, the top surface of the sealing cavity is the inner bottom surface of the outer lid, the cavity wall of the sealing cavity is the inner side surface of the outer end, the lower part of the cavity wall of the sealing cavity is provided with an inner thread matched with the outer thread of the plastic cylinder, the inner bottom surface of the outer lid is provided with a top surface detection assembly, the upper part of the cavity wall of the sealing cavity is provided with a side surface detection assembly, and the top surface detection assembly and the side surface detection assembly are used for detecting whether water leaks or not; the inner lid is used for being connected with the plastic cylinder, the inner lid is arranged in the sealing cavity of the outer lid, the inner lid is flexibly attached to the bucket opening, and the deformation gap of the plastic bucket opening is compensated; the outer lid is provided with a screw pressing and tightening mechanism, axial sealing is formed, the water vapor invasion path is blocked, the top surface / side surface desiccant is arranged in a partitioned manner, residual water vapor is adsorbed, the humidity in the bucket is reduced, and the water vapor penetration condition can be judged through the discoloration of the top surface / side surface desiccant.
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Claims

1. A universal plastic bucket lid that prevents water absorption, characterized in that, Includes an outer cover (1) and an inner cover (2). The bottom surface of the outer cover (1) forms a sealing cavity (11), the top surface of the sealing cavity (11) is the inner bottom surface of the outer cover (1), the cavity wall of the sealing cavity (11) is the inner side surface of the outer end, the lower part of the cavity wall of the sealing cavity (11) has an internal thread (12) that matches the external thread on the plastic cylinder, a top surface detection component (13) is installed on the inner bottom surface of the outer cover (1), and a side surface detection component (14) is installed on the upper part of the cavity wall of the sealing cavity (11). Both the top surface detection component (13) and the side surface detection component (14) are used to detect whether there is leakage. The inner cover (2) is used to connect with the plastic tube, and the inner cover (2) is arranged in the sealing cavity (11) of the outer cover (1).

2. The universal plastic bucket lid with water-proof design as described in claim 1, characterized in that: The top surface detection assembly (13) includes a top surface detection groove (131), a top surface partition mesh (132), and a top surface desiccant (133). The top surface detection groove (131) is opened on the inner bottom surface of the outer cover (1). The top surface desiccant (133) is arranged in the top surface detection groove (131). The top surface partition mesh (132) is installed at the opening of the top surface detection groove (131). The top surface partition mesh (132) and the top surface detection groove (131) enclose and fix the top surface desiccant (133).

3. The universal plastic bucket lid with water-resistant properties as described in claim 1, characterized in that: The side detection assembly (14) includes a side detection groove (141), a side partition mesh (142), and a side desiccant (143). The side detection groove (141) is opened on the inner side of the outer cover (1). The side desiccant (143) is arranged in the side detection groove (141). The side partition mesh (142) is installed at the opening of the side detection groove (141). The side partition mesh (142) and the side detection groove (141) enclose and fix the side desiccant (143).

4. The universal plastic bucket lid with water-proof design as described in claim 1, characterized in that: The inner cover (2) has a sealing groove (21) that matches the opening of the plastic bucket, and the sealing groove (21) has an annular structure.

5. A universal plastic bucket lid that prevents water absorption as described in claim 1, characterized in that: The inner bottom surface of the outer cover (1) is provided with a fitting groove (15) for accommodating the inner cover (2), and the inner cover (2) is fitted into the fitting groove (15).

6. A universal plastic bucket lid that prevents water absorption as described in claim 5, characterized in that: A clamping mechanism (16) is installed in the fitting groove (15). The clamping mechanism (16) includes a clamping plate (161) and an elastic element (162). One end of the elastic element (162) is fixedly connected to the outer cover (1), and the other end is fixedly connected to the clamping plate (161). The clamping plate (161) is in contact with the inner cover (2). When the inner cover (2) is located in the fitting groove (15), the elastic element (162) is in a compressed state.

7. A universal plastic bucket lid that prevents water absorption as described in claim 1, characterized in that: The inner side of the outer cover (1) protrudes to form a limiting part (17), which is used to limit the inner cover (2).

8. A universal plastic bucket lid that prevents water absorption as described in claim 1, characterized in that: The outer cover (1) is made of a light-transmitting material.