Degradation bag rotating edge sealing structure

By designing a rotating sealing structure for biodegradable bags, a buffer rod and rotating sealing wheel are used to achieve rapid rolling sealing of the snap-on self-sealing bag. This solves the problems of difficult operation and hand fatigue associated with snap-on biodegradable bags, and improves sealing efficiency and convenience.

CN223999900UActive Publication Date: 2026-03-17HANGZHOU LIHAO NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The sealing operation of existing snap-on biodegradable bags is difficult for users with little strength, and prolonged manual pressing can easily lead to hand fatigue.

Method used

A rotating sealing structure for biodegradable bags was designed. It utilizes a buffer rod and a rotating sealing wheel to achieve rapid sealing by rotating the sealing wheel along the snap-on self-sealing opening, and automatically resets the sealing position by combining the rebound force of the buffer spring.

Benefits of technology

It reduces hand fatigue and improves edge sealing efficiency, making it suitable for users with less strength and for long-term edge sealing operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of degradable bags, in particular to a degradable bag rotating edge sealing structure which comprises a degradable bag and an edge sealing base plate. A set of buffer rods are symmetrically arranged on the two sides of the edge sealing base plate and connected with the two sides of the edge sealing base plate in a telescopic mode, buffer channels are formed in the portions, corresponding to the interior of the edge sealing base plate, of the buffer rods, limiting plates are installed at the ends, arranged in the buffer channels, of the buffer rods, and one sides of the limiting plates are elastically connected into the inner walls of the buffer channels through buffer springs. A side pressing plate is connected to the outer end of the buffer rod, a connecting column is fixedly installed in the middle of the bottom of the side pressing plate, a U-shaped wheel frame is installed on the side, facing the middle of the bottom of the edge sealing base plate, of the connecting column, and a rotary edge sealing wheel is rotationally connected to an opening in the end of the U-shaped wheel frame through a wheel shaft. The structure is easy to operate, pressing and edge sealing are rapid, and practicability is high.
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Description

Technical Field

[0001] This utility model relates to the field of biodegradable bag technology, specifically a rotating sealing structure for biodegradable bags. Background Technology

[0002] Biodegradable plastic bags are plastic bags that can be decomposed under certain conditions. There are various ways to close the opening of biodegradable plastic bags, the most common of which are: heat sealing, self-sealing strip, adhesive, snap fasteners, etc. Among the above closure methods, the snap fastener structure is the most practical. It has the advantages of being reusable, having good sealing performance, and being easy to operate. When sealing or separating, you can simply press or stretch the self-sealing opening manually.

[0003] For press-type self-sealing biodegradable bags, it can be difficult for users with less strength to press them manually. Moreover, for small-batch packaging using these biodegradable bags, prolonged manual pressing can easily cause hand fatigue.

[0004] Therefore, in view of the above-mentioned problems, this technical solution proposes a rotating sealing structure for biodegradable bags. Summary of the Invention

[0005] The purpose of this invention is to provide a rotating sealing structure for biodegradable bags to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biodegradable bag rotating sealing structure, including a biodegradable bag and a sealing base plate; the opening of the biodegradable bag is set with a snap-on self-sealing closure, and a set of buffer rods are symmetrically arranged on both sides of the sealing base plate, each connected in a telescopic manner. A buffer channel is opened inside the sealing base plate corresponding to the buffer rods. A limit plate is installed at one end of the buffer rod inside the buffer channel. One side of the limit plate is elastically connected to the inner wall of the buffer channel by a buffer spring. A side pressing plate is connected to the outer end of the buffer rod. When the user applies pressure to the two side pressing plates simultaneously with their hand, the buffer springs are compressed, causing the two sets of side pressing plates to move closer to each other. A connecting post is fixedly installed in the center of the bottom of the side pressing plate, with the connecting post facing... A U-shaped wheel frame is installed on one side of the bottom center of the sealing base plate. The opening at the end of the U-shaped wheel frame is connected to a rotating sealing wheel via a wheel axle. As the two rotating sealing wheels move closer or further away from each other under the relative movement of the side pressing plate, the snap-on self-sealing opening at the opening of the biodegradable bag is placed between the two rotating sealing wheels. The two rotating sealing wheels contact the two sides of the snap-on self-sealing opening, and then pressure is applied. The rotating sealing wheels roll along the length of the snap-on self-sealing opening, thereby rotating and rolling the protrusions and grooves of the snap-on self-sealing opening to close. When the pressure on the side pressing plate is lost, the rebound force of the buffer spring automatically resets the two rotating sealing wheels, thus achieving a rotating and rapid sealing of the snap-on self-sealing opening.

[0007] Compared with the prior art, the beneficial effects of this utility model are: by using the rotating sealing wheel to roll and apply pressure along both sides of the snap-on self-sealing opening, the snap-on self-sealing opening can be quickly rolled and snapped shut, which can reduce the fatigue of the hands to a certain extent and improve the sealing efficiency of the biodegradable bag. Attached Figure Description

[0008] Figure 1 A three-dimensional structural diagram of the rotating sealing structure for biodegradable bags;

[0009] Figure 2 A schematic diagram of the main structure of the rotating sealing structure for a biodegradable bag;

[0010] Figure 3 A top view schematic diagram of the rotating sealing structure for biodegradable bags;

[0011] Figure 4 for Figure 3 A magnified structural diagram of A in the middle.

[0012] The components include: a biodegradable bag 10, a snap-on self-sealing 11, an edge-sealing base plate 12, a handle 13, a side-mounted pressing plate 14, a pressing notch 15, a rotating edge-sealing wheel 16, a wheel axle 17, a U-shaped wheel frame 18, a connecting column 19, a buffer rod 20, a buffer channel 21, a limiting plate 22, and a buffer spring 23. Detailed Implementation

[0013] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Please see Figures 1-4 The biodegradable bag rotating sealing structure includes a biodegradable bag 10 and a sealing base plate 12. The opening of the biodegradable bag 10 is set with a snap-on self-sealing closure 11. The sealing base plate 12 is symmetrically arranged on both sides, each with a set of buffer rods 20 telescopically connected. The buffer rods 20 have a buffer channel 21 inside the sealing base plate 12. A limit plate 22 is installed at one end of the buffer rod 20 inside the buffer channel 21. One side of the limit plate 22 is elastically connected to the inner wall of the buffer channel 21 by a buffer spring 23. The outer end of the buffer rod 20 is connected to a side pressing plate 14. When the user applies pressure to the two side pressing plates 14 simultaneously with their hand, the buffer spring 23 is compressed, and the two sets of side pressing plates 14 are brought closer to each other. A connecting post 19 is fixedly installed at the bottom center of the side pressing plate 14, and the connecting post 19 faces the sealing base plate 12. A U-shaped wheel frame 18 is installed on one side of the bottom center. The opening at the end of the U-shaped wheel frame 18 is rotatably connected to a rotating sealing wheel 16 via a wheel axle 17. That is, the two rotating sealing wheels 16 move closer or further away from each other as the side pressing plate 14 moves relative to each other. At this time, the snap-on self-sealing opening 11 at the opening of the biodegradable bag 10 is placed between the two rotating sealing wheels 16. The two rotating sealing wheels 16 contact the two sides of the snap-on self-sealing opening 11 and then apply pressure. The rotating sealing wheels 16 roll along the length of the snap-on self-sealing opening 11, thereby rotating and rolling the protrusions and grooves at the snap-on self-sealing opening 11 to close. When the pressure on the side pressing plate 14 is lost, the rebound force of the buffer spring 23 is used to automatically reset the two rotating sealing wheels 16, thereby realizing the rotational quick sealing of the snap-on self-sealing opening 11.

[0018] In this embodiment of the invention, a handle 13 is fixedly installed at the top center of the edge sealing substrate 12. The handle 13 facilitates the transfer of the edge sealing substrate 12. At the same time, pressing notches 15 are provided on the side walls of the side pressing plates 14 on both sides. A buffer pad is laid on the inner side of the pressing notch 15. The pressing notch 15 facilitates full contact with the fingers, and the buffer pad reduces contact wear on the fingers.

[0019] The outer circumference of the rotating sealing wheel 16 is uniformly provided with resistance strips. The resistance strips increase the contact friction with the snap-on self-sealing opening 11, thereby preventing slippage when the rotating sealing wheel 16 contacts it, which would affect the accuracy of pressing.

[0020] In one embodiment of the present invention, the edge sealing substrate 12, the side pressing plate 14, the connecting post 19, and the rotating edge sealing wheel 16 are all made of hard plastic material, which ensures a certain degree of hardness while reducing the overall weight, providing convenience for users to use for a long time.

[0021] The working principle of this utility model is as follows: When in use, align the protrusions and grooves at the snap-on self-sealing opening 11, then hold the sealing base plate 12 and place the two rotating sealing wheels 16 on one end of the snap-on self-sealing opening 11. Then apply pressure to the side pressing plate 14, and then control the rotating sealing wheels 16 to approach the two sides of the snap-on self-sealing opening 11, and then continue to apply pressure to snap the protrusions and grooves together. Then control the rotating sealing wheels 16 to roll along the snap-on self-sealing opening 11, thereby quickly sealing the snap-on self-sealing opening 11.

[0022] The preferred embodiments of the present invention have been described in detail above. 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 rotating closure structure for a degradable bag, characterized by, The utility model relates to a degradable bag, including degradable bag (10), edge sealing base plate (12), the mouth of degradable bag (10) is set to button type self -sealing (11), and the both sides of edge sealing base plate (12) are set symmetrically and are all connected with a group of buffer rod (20) stretchable, and buffer rod (20) corresponds the inside of edge sealing base plate (12) and is set up buffer channel (21), and the one end of buffer rod (20) is installed in buffer channel (21) and is installed with limit board (22), and limit board (22) one side is elastically connected in the inner wall of buffer channel (21) through buffer spring (23), and the outer end of buffer rod (20) is connected with side press plate (14), and side press plate (14) bottom middle part is fixedly installed with connecting column (19), and the one side of connecting column (19) towards edge sealing base plate (12) bottom middle part is installed with U type wheel frame (18), and U type wheel frame (18) end opening is rotatably connected with rotary edge sealing wheel (16) through wheel shaft (17).

2. The degrading bag rotary seal structure according to claim 1, wherein, The top middle part of the edge sealing base plate (12) is fixedly installed with a handle (13).

3. The degrading bag rotating seal edge structure according to claim 2, wherein, The side wall of the side press plate (14) on both sides is provided with a press opening (15), and a layer of buffer pad is laid on the inner side of the press opening (15).

4. The degrading bag rotating seal edge structure according to claim 3, wherein, The circumferential outer wall of the rotary edge sealing wheel (16) is uniformly provided with resistance strips.

5. The degrading bag rotating seal edge structure according to claim 4, wherein, The edge sealing base plate (12), the side press plate (14), the connecting column (19) and the rotary edge sealing wheel (16) are all made of hard plastic material.