A plastic bucket with a seal that is easily broken.

By creating a through hole on the outer circumference of the plastic bucket lid and connecting a break bar with an mounting block, the problem of needing external tools to break the sealing strip is solved by utilizing the lever principle and friction limiting structure, thus achieving convenient breaking and safe opening of the sealing strip.

CN224428487UActive Publication Date: 2026-06-30TIANJIN RUIJIE PLASTIC PROD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN RUIJIE PLASTIC PROD
Filing Date
2025-08-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The sealing strip of a plastic bucket requires external tools to break, which is inconvenient and poses a safety hazard.

Method used

Symmetrical through holes are made on the outer periphery of the plastic bucket lid, and a break bar is connected to the mounting block. Utilizing the lever principle and friction limiting structure, the sealing strip can be easily broken by directly applying force through the through holes, which is labor-saving and stable.

Benefits of technology

It enables easy breaking of the sealing strip, improving the convenience and safety of opening, and avoiding the inconvenience and safety hazards of using tools.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a plastic bucket with an easily breakable sealing strip, comprising a bucket body, a bucket lid at the top of the bucket body, and a sealing strip at the bottom of the bucket lid. The bucket lid has through holes on its outer periphery for easily breaking the sealing strip, and these through holes are symmetrically arranged on the outer periphery of the bucket lid. An installation block is fixedly installed in the middle of the two sets of through holes. The symmetrical through holes on the outer periphery of the bucket lid expose the corresponding positions of the sealing strip, forming stress concentration points, significantly reducing the force required to break it, and facilitating direct contact with weak points. Combined with the breaking lever on the installation block, hand force can be accurately transmitted to the sealing strip at the through holes. The structural design amplifies the force, eliminating the need for external tools such as knives throughout the process. The convenient operation achieved through its own structure solves the problem of traditionally difficult-to-break sealing strips, avoids the safety hazards and inconvenience of using tools, and improves the convenience and safety of opening the plastic bucket.
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Description

Technical Field

[0001] This utility model relates to the field of plastic bucket technology, specifically a plastic bucket with a sealing strip that is easily broken. Background Technology

[0002] Plastic drums are containers made primarily of plastic and are widely used for the storage, transportation, and packaging of liquids and solids. Thanks to the properties of plastic, they offer advantages such as lightweight, corrosion resistance, low cost, and good sealing, making them important in various fields including chemical, food, pharmaceutical, agriculture, and daily life.

[0003] The sealing strip of a plastic bucket is a functional component installed at the joint between the lid and the body of the bucket. Its core function is to enhance the sealing performance of the plastic bucket. When breaking the sealing strip, it is usually necessary to use external tools to pry it off and open the lid, which is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the sealing strip of a plastic bucket is a functional component installed at the joint between the lid and the body of the bucket, and its core function is to enhance the sealing performance of the plastic bucket. When the sealing strip is broken, it usually requires the use of external tools to pry it off and open the lid, which is inconvenient. The present invention provides a plastic bucket with a sealing strip that is easy to break.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic bucket with an easily breakable sealing strip, comprising a plastic bucket body, a plastic bucket lid at the top of the plastic bucket body, a sealing strip at the bottom of the plastic bucket lid, through holes symmetrically arranged on the outer periphery of the plastic bucket lid to facilitate breaking the sealing strip, an mounting block fixedly installed in the middle of the two sets of through holes, and a breaking rod rotatably connected to one end of the mounting block to facilitate breaking with effort, sliding grooves symmetrically arranged at both ends of the breaking rod, and a rotating shaft slidably connected in the middle of the two sets of sliding grooves, a second rotating shaft fixedly installed inside the mounting block, and a connecting arm rotatably connected in the middle of the first and second rotating shafts.

[0006] As a further improvement of this utility model: the middle part of the break-off rod is rotatably connected to a limiting plate, the limiting plate being located in the middle of the two sets of sliding grooves, and the limiting plate being inclined.

[0007] As a further embodiment of this utility model: the break bar has a rotating groove inside, and the rotating groove is symmetrically opened at both ends of the break bar. The limiting plate has a rotating shaft symmetrically fixedly installed at both ends, and the rotating shaft is adapted to the rotating groove.

[0008] As a further improvement of this utility model: a torsion spring for the limiting plate to rotate and reset is fixedly installed inside the rotating groove.

[0009] As a further improvement of this utility model: a limiting plate two for rotational limiting is fixedly installed at one end of the break rod.

[0010] As a further improvement of this utility model, one end of the plastic bucket is rotatably connected to a handle for workers to lift.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The symmetrical through holes on the outer periphery of the lid of this utility model expose the corresponding positions of the sealing strip, forming stress concentration points, significantly reducing the force required to break it, and making it easier to directly apply force to the weak parts. With the breaking rod on the mounting block, the hand force can be accurately transmitted to the sealing strip at the through hole. The structural design amplifies the force, and no external tools such as knives are needed throughout the process. The convenient operation is achieved through its own structure, which not only solves the problem of traditional sealing strips being difficult to break, but also avoids the safety hazards and inconvenience of using tools, and improves the convenience and safety of opening plastic buckets.

[0013] This utility model's break-off lever rotates and unfolds around the mounting block. The sliding groove and connecting arm cooperate to form a stable motion trajectory. When rotated to 90 degrees, the second limiting plate abuts against the limiting position, forming a force-saving lever. By amplifying the force through the lever arm difference, the sealing strip can be easily broken. When the rotating shaft slides, it squeezes the first limiting plate, and the torsion spring pushes its inclined surface to adhere to the shaft wall to generate friction limiting, reducing slippage and enhancing stability. When it is not necessary to break the seal, pressing the limiting plate can release the limiting position and drive the break-off lever to be stored, saving space. The whole system utilizes the lever principle and friction limiting to achieve force-saving operation and stable storage, greatly improving the ease of opening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the unfolded structure of the plastic bucket body and the plastic bucket lid in this utility model;

[0016] Figure 3 This is a schematic diagram of the unfolded structure of the mounting block and the break-off rod in this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the break bar in this utility model;

[0018] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Plastic bucket body; 2. Plastic bucket lid; 3. Sealing strip; 4. Handle; 5. Through hole; 6. Mounting block; 7. Breaking rod; 8. Limiting plate two; 9. Slide groove; 10. Rotating shaft one; 11. Rotating shaft two; 12. Connecting arm; 13. Limiting plate one; 14. Rotating groove; 15. Rotating shaft; 16. Torsion spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will be described below based on its overall structure.

[0022] Reference Figures 1 to 5 In this embodiment of the utility model, a plastic bucket with an easily breakable sealing strip includes a plastic bucket body 1, a plastic bucket lid 2 at the top of the plastic bucket body 1, a sealing strip 3 at the bottom of the plastic bucket lid 2, and through holes 5 on the outer periphery of the plastic bucket lid 2 to facilitate breaking the sealing strip 3. The through holes 5 are symmetrically arranged on the outer periphery of the plastic bucket lid 2. An installation block 6 is fixedly installed in the middle of the two sets of through holes 5, and a breaking rod 7 that is easy to break and requires less effort is rotatably connected to one end of the installation block 6. The breaking rod 7 has symmetrically arranged sliding grooves 9 at both ends, and a rotating shaft 10 is slidably connected in the middle of the two sets of sliding grooves 9. A rotating shaft 2 11 is fixedly installed inside the installation block 6, and a connecting arm 12 is rotatably connected in the middle of the rotating shaft 10 and the rotating shaft 2 11.

[0023] The above solution employs the following: the plastic bucket body 1, the plastic bucket lid 2, and the sealing strip 3 are all existing technologies and are not described in detail in this application. The mounting block 6 is made of PP material, the break rod 7 is made of PP plastic with anti-slip texture on the surface, the rotating shaft 10 and the rotating shaft 2 11 are both made of stainless steel, and the connecting arm 12 is made of PP material. The PP mounting block 6 is fixed to the plastic bucket lid 2. The stainless steel rotating shaft 2 11 connects to the PP connecting arm 12, and its other end slides in cooperation with the sliding groove 9 of the break rod 7 through the rotating shaft 10. When the break rod 7 is rotated, the connecting arm 12 rotates around the rotating shaft 2 11, and the rotating shaft 10 slides along the sliding groove 9. The lever principle is used to save effort, and the sealing strip 3 is easily broken through the through hole 5. The anti-slip texture increases the grip, and the stainless steel rotating shaft is wear-resistant. The overall cooperation makes breaking the sealing strip 3 easier and more convenient, improving the opening efficiency of the plastic bucket lid 2.

[0024] Reference Figures 1 to 5 A limiting plate 13 is rotatably connected to the middle of the break rod 7. The limiting plate 13 is located in the middle of the two sets of sliding grooves 9 and is inclined. A rotating groove 14 is opened inside the break rod 7 and the rotating groove 14 is symmetrically opened at both ends of the break rod 7. A rotating shaft 15 is symmetrically fixedly installed at both ends of the limiting plate 13 and the rotating shaft 15 is adapted to the rotating groove 14. A torsion spring 16 for the limiting plate 13 to rotate and reset is fixedly installed inside the rotating groove 14.

[0025] The above scheme is adopted: the limiting plate 13 is made of PP material, the rotating shaft 15 is made of stainless steel, and the torsion spring 16 is made of 65Mn spring steel. The PP limiting plate 13 is located in the middle of the two sets of rotating grooves of the break rod 7 through the stainless steel rotating shaft 15. The 65Mn torsion spring 16 provides the restoring force. When not in use, the limiting plate 13 is tilted and retracted, which does not affect the operation. When the sealing strip 3 is broken, the rotating shaft 15 ensures that the limiting plate 13 can rotate flexibly, and the torsion spring 16 makes it automatically return to its original position.

[0026] Reference Figures 1 to 5 One end of the break rod 7 is fixedly equipped with a limiting plate 2 8 for rotation limiting;

[0027] Using the above scheme: the limiting plate 2 8 is made of PP material and is vertically fixed to the end of the breaking rod 7. When the breaking rod 7 is rotated, when the breaking rod 7 is rotated to ninety degrees, the limiting plate 2 8 abuts against the top of the mounting block 6, restricting its continued rotation, thus forming a force-saving lever structure.

[0028] Reference Figures 1 to 5 The plastic bucket body 1 has a handle 4 that is rotatably connected to one end for workers to lift;

[0029] The above solution is adopted: the handle 4 is made of PP material with anti-slip textured surface. Both ends are rotatably connected to the plastic bucket body 1 by stainless steel pins. Wear-resistant washers are provided at the rotating parts. The PP handle 4 is lightweight and has appropriate strength. The anti-slip textured surface increases grip friction and prevents slippage when lifting. The stainless steel pins and wear-resistant washers ensure smooth rotation of the handle 4 and reduce wear. The rotatable design allows it to fit snugly against the bucket body when not in use, saving space. When in use, it can be unfolded for easy application of force. The rotatable connection between the handle 4 and the plastic bucket body 1 provides a convenient way to lift without affecting the storage of the bucket. The overall structure has good adaptability and improves the convenience of use. The installation block 6 and the break bar 7 do not affect the normal rotation of the handle 4.

[0030] The working principle of this utility model is as follows: Symmetrical through holes 5 on the outer periphery of the plastic bucket lid 2 expose the corresponding positions of the sealing strip 3, facilitating direct force application. During operation, the hand can contact the weakest part of the sealing strip 3 through the through holes 5. Simultaneously, the opening of the through holes 5 creates a stress concentration point on the sealing strip 3 at that location, reducing the force required to break it. Combined with the breaking rod 7 on the mounting block 6, when force is applied to the breaking rod 7, the force is transmitted through the structure to the sealing strip 3 at the stress concentration point of the through hole 5, allowing the sealing strip 3 to be easily broken at this stress concentration point. The entire process requires no external tools such as knives, achieving convenient operation. When breaking the sealing strip with minimal effort using the mounting block 6 and the breaking rod 7, the breaking rod 7 is rotated to unfold around the mounting block 6. During this process, the first rotating shaft 10 within the sliding grooves 9 at both ends of the breaking rod 7 slides, and the connecting arm 12 rotates around the second rotating shaft 11. When the breaking rod 7 rotates... When the angle reaches 90 degrees, the limiting plate 28 abuts against the top of the mounting block 6, restricting its continued rotation. At this time, a force-saving lever structure is formed. The connection point between the mounting block 6 and the break rod 7 is the fulcrum. The distance from the point of force application by the hand to the fulcrum is greater than the distance from the point of force application of the sealing strip 3 to the fulcrum. The force is amplified through the lever principle. At the same time, when the rotating shaft 10 slides, it will squeeze the inclined limiting plate 13. When the rotating shaft 10 slides past the limiting plate 13, the limiting plate 13 rotates around the rotating shaft 15 under the action of the torsion spring 16. Its inclined surface is in contact with the outer wall of the rotating shaft 10 to generate friction, which limits the sliding and enhances the stability of operation. When there is no need to break it, just press one end of the limiting plate 13 to release the limitation on the rotating shaft 10. At this time, the break rod 7 can be driven to rotate and be stored in the groove of the mounting block 6.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic bucket with an easily broken sealing strip, comprising a plastic bucket body (1), a plastic bucket lid (2) provided at the top of the plastic bucket body (1), and a sealing strip (3) for sealing provided at the bottom of the plastic bucket lid (2), characterized in that, The plastic bucket lid (2) has through holes (5) on its outer periphery to facilitate breaking the sealing strip (3). The through holes (5) are symmetrically opened on the outer periphery of the plastic bucket lid (2). An installation block (6) is fixedly installed in the middle of the two sets of through holes (5). A breaking rod (7) is rotatably connected to one end of the installation block (6) to facilitate breaking and save effort. The breaking rod (7) has symmetrically opened sliding grooves (9) at both ends. A rotating shaft (10) is slidably connected in the middle of the two sets of sliding grooves (9). A rotating shaft (11) is fixedly installed inside the installation block (6). A connecting arm (12) is rotatably connected in the middle of the rotating shaft (10) and the rotating shaft (11).

2. A plastic bucket with an easily broken sealing strip according to claim 1, characterized in that, The break rod (7) is rotatably connected to a limiting plate (13) in the middle. The limiting plate (13) is located in the middle of the two sets of sliding grooves (9) and is inclined.

3. A plastic bucket with an easily broken sealing strip according to claim 2, characterized in that, The break bar (7) has a rotating groove (14) inside, and the rotating groove (14) is symmetrically opened at both ends of the break bar (7). The limiting plate (13) has a rotating shaft (15) symmetrically fixed at both ends, and the rotating shaft (15) is adapted to the rotating groove (14).

4. A plastic bucket with an easily broken sealing strip according to claim 3, characterized in that, A torsion spring (16) for the limit plate (13) to rotate and reset is fixedly installed inside the rotating groove (14).

5. A plastic bucket with an easily broken sealing strip according to claim 4, characterized in that, One end of the break rod (7) is fixedly installed with a limiting plate (8) for rotation limiting.

6. A plastic bucket with an easily broken sealing strip according to claim 5, characterized in that, The plastic bucket body (1) has a handle (4) rotatably connected to one end for workers to lift.