A trash bag

By incorporating an inverted trapezoidal cut line on the side edge of the garbage bag and a reinforced bottom design, the problem of garbage bags being difficult to remove from long garbage bins has been solved, enabling convenient removal and stable use, thus improving the performance and market competitiveness of the garbage bags.

CN224410319UActive Publication Date: 2026-06-26GUANGDONG CENTRON HIGH-TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG CENTRON HIGH-TECH CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Ordinary garbage bags are difficult to remove from long garbage bins when they are full, and they are prone to slipping out, causing inconvenience to users.

Method used

Cut lines are set on both sides of the garbage bag to make the bag body an inverted trapezoidal structure. The cut lines are divided into three different lines, and two spaced horizontal cut lines are set at the bottom. Combined with a reasonable curvature radius and length design, the stability and convenience of the bag body after being filled with garbage are ensured.

Benefits of technology

The inverted trapezoidal structure reduces the degree of contact with the inner wall of the trash can, lowers friction, makes it easier to remove the trash bag, prevents it from slipping, extends its service life, and improves the product's versatility and ease of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224410319U_ABST
    Figure CN224410319U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of garbage bags, garbage bag includes bag body, bag body both sides side edge is equipped with cutout line, cutout line gradually extends towards center from top to bottom along the side edge of bag body, so that bag body presents inverted trapezoidal structure.The application is designed by special cutout line, so that the bag body filled with garbage forms stable inverted trapezoidal structure, substantially reduces the adhesion with long barrel garbage can inner wall, solves the problem that traditional garbage bag is difficult to take out, overall structure is reasonable and easy to produce, applicable to long barrel garbage can scene, with higher practical value and popularization significance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of daily necessities, and in particular to a garbage bag. Background Technology

[0002] In daily life, garbage bags are indispensable, especially in situations where long garbage bins are provided. Ordinary garbage bags often present several problems. On the one hand, the length of ordinary garbage bags is insufficient to fit long garbage bins, making them prone to slipping during use. On the other hand, when garbage bags are full of garbage, their regular shape makes them fit tightly against the inner wall of the garbage bin, making them difficult to remove smoothly and causing inconvenience to users. Utility Model Content

[0003] This utility model aims to at least partially solve one of the problems in related technologies. Therefore, one objective of this utility model is to provide a garbage bag that improves the convenience of removing a full garbage bag from a long garbage bin.

[0004] A garbage bag includes a bag body, with slits on both sides of the bag body. The slits extend from top to bottom along the side edges of the bag body towards the center, and the two slits make the bag body have an inverted trapezoidal structure.

[0005] Furthermore, the cut line is divided into a first segment, a second segment, and a third segment from top to bottom. The first segment is an arc, the second segment is a straight line, and the third segment is an arc. The starting point of the first segment extends to the side edge of the bag body, the second segment extends along the extension direction of the bag body, and the third segment extends towards the central axis of the bag body.

[0006] Furthermore, the radius of curvature of the first arc segment is 3-8cm, and the radius of curvature of the third arc segment is 2-6cm.

[0007] Furthermore, the length of the second straight line is 8-15cm.

[0008] Furthermore, the connection points between the first arc segment and the second straight segment, as well as the connection points between the second straight segment and the third arc segment, are all designed for smooth transitions.

[0009] Furthermore, the bag body has two horizontal cut lines on one side near the bottom, with the two horizontal cut lines spaced apart.

[0010] Furthermore, the spacing between the two horizontal cut lines is 5-15 mm.

[0011] Furthermore, the length of the bag is 50-80cm.

[0012] Furthermore, the bag body is made of polyethylene film with a thickness of 0.01-0.03 mm.

[0013] Furthermore, the top of the bag is provided with a tear-away handle, which is integrally formed with the bag body.

[0014] Compared with the prior art, the technical solution provided in this application has the following advantages: This application provides slits on both sides of the bag body, with the slits extending gradually from top to bottom along the edge of the bag body towards the center. The two slits create an inverted trapezoidal structure for the bag body. This special double-slit design makes the garbage bag, when filled with garbage, present an inverted trapezoidal structure that is wider at the top and narrower at the bottom, effectively reducing its contact with the inner wall of the garbage bin and making it easier for users to remove it from long garbage bins. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] In the attached image:

[0018] Figure 1 This is a schematic diagram of the structure of a garbage bag according to an embodiment of this application;

[0019] Figure 2 This is a front view of an embodiment of the garbage bag of this application;

[0020] Figure 3 This is a schematic diagram of another embodiment of the garbage bag of this application.

[0021] Figure label:

[0022] 1. A type of garbage bag; 10. Bag body; 11. Cut line; 111. First segment; 112. Second segment; 113. Third segment; 13. Horizontal cut line; 15. Handle. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0025] like Figure 1 , Figure 2 As shown, the garbage bag 1 provided in this application includes a bag body 10. Both sides of the bag body 10 are provided with cut lines 11. The cut lines 11 extend from top to bottom along the side edges of the bag body 10 towards the center. The two cut lines 11 make the bag body 10 have an inverted trapezoidal structure.

[0026] In daily life, due to the considerable depth of long trash cans, ordinary trash bags, when full, often adhere tightly to the can walls, requiring considerable effort to remove and sometimes even causing trash to spill out due to improper force. However, the trash bag described in this claim, by incorporating specific slits 11 on both side edges, creates an inverted trapezoidal structure for the bag body 10. This structure reduces the contact area between the bag body 10 and the inner wall of the long trash can when full, lowering friction. Users no longer need to painstakingly peel the bag body 10 from the can wall; a gentle lift is all it takes to remove the bag, greatly improving ease of use. Simultaneously, this structural design better adapts to the shape of long trash cans, reducing the likelihood of the trash bag slipping during use and ensuring the cleanliness of the trash can. Furthermore, compared to other complex bag-removal aids, this method of changing shape solely through slits 11 does not significantly increase production costs, facilitating large-scale adoption.

[0027] Starting with the structure of the bag body 10, the shape of the bag body 10 is changed by setting a special slit line 11. When the slit line 11 extends from top to bottom towards the center, after being filled with garbage, the two sides of the bag body 10 shrink inward to different degrees under the action of the slit line 11, thus forming an inverted trapezoidal structure that is larger at the top and smaller at the bottom, thereby solving the problem of retrieval.

[0028] Furthermore, the cut line 11 is divided into a first segment 111, a second segment 112, and a third segment 113 from top to bottom. The first segment 111 is an arc, the second segment 112 is a straight line, and the third segment 113 is an arc. The starting point of the first segment 111 extends to the side edge of the bag body 10, the second segment 112 extends along the extension direction of the bag body 10, and the third segment 113 extends towards the central axis of the bag body 10.

[0029] The cut line 11 is divided into three different segments. The first segment, an arc 111, starts from the edge of the bag 10, guiding the edge of the bag 10 to contract naturally and smoothly, avoiding damage caused by excessive local stress due to sudden contraction. The second segment, a straight line 112, extends along the extension direction of the bag 10. This segment stabilizes the contraction direction and degree of the bag 10, ensuring uniform contraction in this part and making the shape of the bag 10 more regular. The third segment, an arc 113, is set towards the central axis of the bag 10, further enhancing the contraction effect at the bottom of the bag 10, ensuring that the inverted trapezoidal structure formed by the bag 10 is more obvious and stable. This three-segment cut line 11 design allows the bag 10 to maintain a stable shape that is wider at the top and narrower at the bottom when full of garbage, preventing deformation due to structural instability and ensuring continued ease of bag retrieval. At the same time, the reasonable transition of each segment also enhances the structural strength of the edge of the bag 10, extending the service life of the garbage bag.

[0030] Furthermore, the radius of curvature of the first segment 111 arc is 3-8cm, and the radius of curvature of the third segment 113 arc is 2-6cm.

[0031] The curved segment of the slit line 11 is a key part that guides the contraction of the bag body 10. The rationality of its curvature directly affects the stability and usability of the overall garbage bag structure. The first segment 111 of the curved line starts from the edge of the bag body 10. The reasonable setting of its radius of curvature guides the upper edge of the bag body 10 to contract naturally and moderately. This contraction is neither too drastic, causing the upper opening of the bag body 10 to be too small and affecting garbage disposal, nor does it lay the foundation for forming an inverted trapezoidal structure, allowing the upper part of the bag body 10 to maintain an appropriate gap with the inner wall of the long garbage bin, facilitating subsequent bag removal operations.

[0032] The third segment, arc 113, is oriented towards the central axis of the bag body 10. The reasonable range of its radius of curvature can precisely control the degree of contraction of the lower part of the bag body 10. With an appropriate degree of curvature, the contraction of the lower part of the bag body 10 can be more obvious, further strengthening the shape of the inverted trapezoidal structure, reducing the fit between the lower part of the bag body 10 and the inner wall of the trash can, and reducing the friction when taking the bag out.

[0033] Meanwhile, the reasonable combination of the curvature radii of the two arc segments allows the bag body 10 to be subjected to more even stress during the shrinkage process, avoiding material fatigue or damage caused by excessive local bending, and extending the service life of the garbage bag. This precise limitation of the curvature radius of the arc segments is a further optimization based on the three-segment cut line 11 structure, providing a reliable structural guarantee for the garbage bag to achieve functions such as convenient bag removal and stable load-bearing, and also making the scope of patent protection clearer, preventing others from circumventing the patent by fine-tuning the degree of curvature of the arc.

[0034] Furthermore, the length of the second segment 112 is 8-15cm.

[0035] The second straight line segment 112, as the middle part of the cut line 11, has a significant impact on the overall shape and shrinkage effect of the bag body 10. If the straight line segment is too short, it may not be able to stabilize the shrinkage direction of the bag body 10, causing deviations in the shape of the bag body 10 and affecting the formation of the inverted trapezoidal structure. If the straight line segment is too long, it may limit the degree of shrinkage of the bag body 10, making the inverted trapezoidal structure indistinct and failing to achieve the effect of convenient bag retrieval. This claim limits the length of the second straight line segment 112 to ensure that the shrinkage process of the bag body 10 can be stabilized by a straight line segment of appropriate length on garbage bags of different sizes, ensuring that the inverted trapezoidal structure formed by the bag body 10 is both obvious and reasonable. This allows the garbage bag to maintain a sufficient opening size at the top after being filled with garbage, facilitating garbage loading, while the bottom can shrink appropriately to reduce contact with the bin wall, thus making it easier to retrieve the bag. At the same time, the appropriate length of the straight line segment also makes the force on each part of the bag body 10 more even, reducing damage to the bag body 10 caused by uneven force, extending the service life of the garbage bag, and improving its overall practicality.

[0036] Furthermore, the connection points between the first segment 111 arc and the second segment 112 straight line, and the connection points between the second segment 112 straight line and the third segment 113 arc, are all designed with smooth transitions.

[0037] If the segments of the three-segment cut line 11 have sharp edges at their joints, these edges will become stress concentration points when the garbage bag is full of garbage. As the weight of the garbage increases, tearing can easily occur, affecting the normal use of the garbage bag. In this claim, the joints between the first segment 111 (arc) and the second segment 112 (straight line), and between the second segment 112 (straight line) and the third segment 113 (arc), are designed as smooth transitions, effectively dispersing stress in these areas. The smooth transition design makes the connection between the lines more natural, and when the bag body 10 is under stress, the force can be evenly transmitted along the transition area, avoiding damage caused by stress concentration. This design greatly enhances the overall structural strength of the cut line 11, ensuring that the cut line 11 remains stable even when the garbage bag is full of heavy garbage, preventing easy tearing. At the same time, the smooth transition design also makes the edges of the bag body 10 more regular, facilitating processing during production, reducing defects caused by improper processing at the joints, improving production efficiency and product quality, and further enhancing the market competitiveness of the garbage bag.

[0038] Furthermore, the bag body 10 has two horizontal cut lines 13 on one side near the bottom, and the two horizontal cut lines 13 are spaced apart.

[0039] The bottom of a garbage bag is a crucial part that bears the weight of the garbage. Damage to the bottom not only causes leakage and environmental pollution but also creates cleaning difficulties for users. This invention features two spaced horizontal slits 13 on the side of the bag 10 near the bottom, providing double structural support. When the garbage bag is full, the tensile force on the bottom is distributed between the two horizontal slits 13, preventing the force from concentrating in one area and causing the bottom to break. Compared to a design with only one horizontal slit 13, the two spaced horizontal slits 13 form a mutually supportive force-bearing structure. Even if there is slight overstress near one slit 13, the other can still share the load, greatly improving the bottom's robustness. Simultaneously, this arrangement of horizontal slits 13 does not affect the normal usable space at the bottom of the garbage bag, ensuring the bag's loading capacity. Furthermore, this structural design is simple and easy to manufacture, enhancing the bottom's load-bearing capacity without significantly increasing production costs.

[0040] Furthermore, the distance between the two horizontal cut lines 13 is 5-15 mm.

[0041] The spacing between the two horizontal slits 13 is not arbitrarily set; its size directly affects the reinforcement effect at the bottom. If the spacing is too large, the material area between the two slits 11 is too wide, making it difficult to form an effective synergistic effect under stress, resulting in each borne a large tensile force and significantly reducing the reinforcement effect. If the spacing is too small, the two slits 11 are too close together, causing the material in that area at the bottom to be too dense, affecting the flexibility of the bottom, and potentially causing damage when loading garbage because the bottom cannot stretch properly. This claim limits the spacing between the two horizontal slits 13 to ensure it is within a reasonable range. Within this range, the two horizontal slits 13 can cooperate with each other to jointly distribute the tensile force on the bottom, forming an effective double reinforcement and greatly enhancing the strength of the bottom. At the same time, the reasonable spacing also ensures that the bottom material has a certain degree of flexibility, which can adapt to the shape changes during garbage loading and will not break due to excessive stiffness. This design achieves a balance between strength and flexibility at the bottom of the garbage bag, further improving the performance and reliability of the garbage bag.

[0042] Furthermore, the length of the bag body 10 is 50-80cm.

[0043] Long trash cans come in various depths, but ordinary trash bags are often only available in a few fixed lengths, making it difficult to fully fit all types of long trash cans. When the trash bag is too short, it easily slips off the opening during use, causing trash to directly contact the can wall, increasing the workload of cleaning. This claim limits the length of the bag body 10 to accommodate various common sizes of long trash cans. A bag body 10 of suitable length can completely cover the inner wall of the long trash can, extending from the opening to the bottom, effectively preventing the trash bag from slipping off. This not only ensures the cleanliness of the inside of the trash can and reduces cleaning hassle, but also allows the trash bag to better hold the trash, preventing leakage due to slippage. At the same time, the suitable length does not result in material waste, controlling production costs while ensuring effectiveness. For users, there is no need to purchase different sized trash bags for different lengths of long trash cans; this design, which adapts to multiple long trash cans, improves the product's versatility and brings convenience to users.

[0044] Furthermore, the bag body 10 is made of polyethylene film with a thickness of 0.01-0.03 mm.

[0045] The bag body 10 is made of polyethylene film. Polyethylene itself has good flexibility and corrosion resistance, making it suitable for holding various types of garbage. The thickness is limited to find the optimal balance between strength and cost. If the bag body 10 is too thin, it will easily tear when loaded with slightly heavier or angular garbage, leading to leakage. If the bag body 10 is too thick, while strength is improved, it increases raw material consumption and production costs, and also reduces flexibility, making it difficult to unfold and use. A bag body 10 made of polyethylene film of suitable thickness ensures sufficient strength to withstand a certain weight of garbage without breaking, while also possessing good flexibility, making it easy for users to unfold and place over garbage cans. Furthermore, polyethylene material is widely available and its processing technology is mature. Using this material to make the bag body 10 facilitates large-scale production, ensures product quality stability, and provides consumers with cost-effective garbage bags.

[0046] Furthermore, such as Figure 3 As shown, the top of the bag body 10 is provided with a tearable handle 15, and the handle 15 and the bag body 10 are integrally formed.

[0047] When a garbage bag is full, how to conveniently and hygienically lift it is an important user experience issue. Ordinary garbage bags lack a dedicated handle 15, requiring users to grip the sides of the bag opening. This not only easily exposes hands to garbage, which is unhygienic, but also makes the bag opening prone to loosening and garbage falling out during lifting. This invention solves this problem by providing a tear-away handle 15 at the top of the bag body 10, with the handle 15 being an integrally molded structure. When disposing of garbage, users simply tear out the handle 15 and easily lift the garbage bag, avoiding direct contact between hands and garbage and ensuring hygiene. The integrally molded structure ensures a secure connection between the handle 15 and the bag body 10, preventing the handle 15 from detaching. Even when the garbage bag is full and heavy, it can be safely lifted. Furthermore, the tear-away design allows the handle 15 to remain in place when not in use, making it easy and convenient to use. This design increases the convenience and hygiene of garbage bags, enhances the overall user experience, and makes the product more popular with consumers.

[0048] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A garbage bag, characterized in that, The bag includes a bag body, and both sides of the bag body have slits. The slits extend from top to bottom along the side edges of the bag body towards the center, and the two slits make the bag body have an inverted trapezoidal structure.

2. A garbage bag according to claim 1, characterized in that, The cut line is divided into a first segment, a second segment, and a third segment from top to bottom. The first segment is an arc, the second segment is a straight line, and the third segment is an arc. The starting point of the first segment extends to the side edge of the bag body, the second segment extends along the extension direction of the bag body, and the third segment extends towards the central axis of the bag body.

3. A garbage bag according to claim 2, characterized in that, The radius of curvature of the first arc segment is 3-8cm, and the radius of curvature of the third arc segment is 2-6cm.

4. A garbage bag according to claim 2, characterized in that, The length of the second straight line is 8-15cm.

5. A garbage bag according to claim 2, characterized in that, The connection points between the first arc segment and the second straight segment, as well as the connection points between the second straight segment and the third arc segment, are designed for smooth transitions.

6. A garbage bag according to claim 1, characterized in that, The bag body has two horizontal cut lines on one side near the bottom, and the two horizontal cut lines are spaced apart.

7. A garbage bag according to claim 6, characterized in that, The distance between the two horizontal cut lines is 5-15mm.

8. A garbage bag according to claim 1, characterized in that, The length of the bag is 50-80cm.

9. A garbage bag according to claim 1, characterized in that, The bag is made of polyethylene film with a thickness of 0.01-0.03 mm.

10. A garbage bag according to claim 1, characterized in that, The top of the bag is provided with a tear-off handle, which is integrally formed with the bag body.