A three-dimensional formed garbage bag
By designing a three-dimensional garbage bag, which combines membrane stacking layers and hot-pressing lines to form an inflatable three-dimensional structure, the problem of inconvenient garbage bag carrying and use is solved, and a portable and multifunctional garbage bag user experience is achieved.
Patent Information
- Application Number
- CN202522255500.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-24
AI Technical Summary
Existing garbage bags are inadequate in terms of portability and use; they are neither convenient to carry nor convenient to place garbage in, and existing garbage bins are too bulky to be easily carried.
Design a three-dimensional garbage bag that forms an inflatable three-dimensional structure through the combination of membrane stacking layers and hot pressing lines. It includes horizontal sealing hot pressing lines, vertical sealing hot pressing lines and discontinuous hot pressing bands to form a cylindrical structure that can stand upright. A handle hole is provided in the handle area. The valve membrane is provided with airflow channels and check valve hot pressing blocks to ensure airtightness.
It achieves portability and ease of use for garbage bags. When inflated, it can stand upright in a bucket shape for easy garbage disposal and can also be used as an inflatable mat, making it suitable for tourism and other scenarios.
Smart Images

Figure CN224676966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of garbage bag technology, specifically to a three-dimensional molded garbage bag. Background Technology
[0002] Existing trash cans are bulky and inconvenient to carry, while existing trash bags are easy to carry but inconvenient to use, meaning they are not convenient to put trash in, and you have to unfold them to put trash in. Therefore, based on the needs of real life, there is a need to design a trash bag that is convenient to put trash in. Utility Model Content
[0003] The purpose of this utility model is to provide a three-dimensional molded garbage bag that is easy to carry, easy to use, and has a wide range of applications.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A three-dimensional molded garbage bag includes a membrane stack layer, which is composed of a first cavity membrane, a second cavity membrane, a first valve membrane, and a second valve membrane stacked together. The first valve membrane and the second valve membrane are located between the first cavity membrane and the second cavity membrane. Multiple heat-resistant zones are distributed from left to right on the contact surface of the first valve membrane and the second valve membrane. From the upper edge to the lower edge of the membrane stack layer, a first horizontal sealing heat-pressing line, a second horizontal sealing heat-pressing line, a third horizontal sealing heat-pressing line, a fourth horizontal sealing heat-pressing line, and a fifth horizontal sealing heat-pressing line are sequentially provided. The first and second horizontal sealing heat-pressing lines heat-press the upper edges of the first cavity membrane and the second cavity membrane together. The third horizontal sealing heat-pressing line passes through each heat-resistant zone and heat-presses the first cavity membrane, the second cavity membrane, the first valve membrane, and the second valve membrane together. The fourth and fifth horizontal sealing heat-pressing lines heat-press the lower edges of the first cavity membrane and the second cavity membrane together. Multiple vertical sealing heat-pressing lines are provided on the membrane stack layer. The pressure lines are located between adjacent heat-resistant zones. The vertical sealing heat-pressing lines extend upward to the third horizontal sealing heat-pressing line and downward to the fifth horizontal sealing heat-pressing line. The area between the second and third horizontal sealing heat-pressing lines is a common inflation channel, with one end being a closed end and the other end being an inflation port. Multiple vertical sealing heat-pressing lines heat-press and connect the first cavity membrane, the second cavity membrane, the first valve membrane, and the second valve membrane together. After inflation, the multiple vertical sealing heat-pressing lines form multiple air columns from the first and second cavity membranes. Multiple heat-pressing points are provided on the membrane stack layer above the fourth horizontal sealing heat-pressing line. These multiple heat-pressing points form two parallel discontinuous heat-pressing lines. The heat-pressing points located between adjacent vertical sealing heat-pressing lines heat-press and connect the first and second cavity membranes together, while maintaining unobstructed airflow in the air columns. Heat-pressing connection is performed at the position of the fifth horizontal sealing heat-pressing line after the membrane stack layer is folded in half, and the left and right sides of the membrane stack layer are also heat-pressed together to form a bag structure.
[0005] Furthermore, the area between the first and second horizontal sealing heat-pressing lines is the handle area.
[0006] Furthermore, a carrying hole is provided on the carrying area.
[0007] Furthermore, multiple hot-pressing blocks are provided on the membrane stack layer and below the third horizontal sealing hot-pressing line. The multiple hot-pressing blocks are located on the same straight line to form a discontinuous hot-pressing band. The hot-pressing blocks are located in the area between adjacent vertical sealing hot-pressing lines to hot-press the first cavity membrane and the second cavity membrane together, and can maintain the smooth airflow of the air column.
[0008] Furthermore, the discontinuous hot pressing belt is provided in two parts, and the two discontinuous hot pressing belts are parallel to each other.
[0009] Furthermore, the first valve membrane and the second valve membrane on the membrane stack are respectively provided with a left hot pressing line and a right hot pressing line on the left and right sides of the heat-resistant zone. The difference between the left hot pressing line and the right hot pressing line is the airflow channel of the membrane valve. The left hot pressing line and the right hot pressing line are in a narrowing V-shape and the airflow channel gradually narrows along the air intake direction during inflation.
[0010] Furthermore, a check valve-type hot press block is provided at the outlet of the airflow channel.
[0011] The beneficial effects of this utility model are as follows: This application presents a three-dimensional molded garbage bag. After inflation, it forms a cylindrical structure with a closed bottom, allowing it to stand upright. The circular opening of the garbage bag expands outward, making it easier to dispose of garbage. The garbage bag is disposable; once full, it can be lifted away through the handle. This application is only used when in use, not only saving space and being easy to carry, but also being very convenient to use. Furthermore, this application has a wide range of uses, not only as a garbage can but also as an inflatable mat. Attached Figure Description
[0012] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort: Figure 1 This is a schematic diagram of the unfolded structure of this utility model; Figure 2 for Figure 1 The diagram shows the structure of the garbage bag after folding and connecting. Figure 3 For Figure 1 A sectional view along line AA.
[0013] In the diagram: 1. Membrane stack; 2. Heat-resistant zone; 3. First horizontal sealing heat-pressing line; 4. Second horizontal sealing heat-pressing line; 5. Third horizontal sealing heat-pressing line; 6. Fourth horizontal sealing heat-pressing line; 7. Fifth horizontal sealing heat-pressing line; 8. Vertical sealing heat-pressing line; 9. Common inflation airway; 10. Air column; 11. Heat-pressing point; 12. Left side; 13. Right side; 14. Handle hole; 15. Heat-pressing block; 16. Left heat-pressing line; 17. Right heat-pressing line; 18. Airflow channel; 19. Check valve type heat-pressing block; 20. First cavity membrane; 21. Second cavity membrane; 22. First valve membrane; 23. Second valve membrane. Detailed Implementation
[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.
[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
[0016] like Figure 1 , 2As shown in Figure 3, a three-dimensional garbage bag includes a membrane stacking layer 1. The membrane stacking layer 1 is composed of a first cavity membrane 20, a second cavity membrane 21, a first valve membrane 22, and a second valve membrane 23 stacked together. The first valve membrane 22 and the second valve membrane 23 are located between the first cavity membrane 20 and the second cavity membrane 21. Multiple heat-resistant zones 2 are distributed from left to right on the contact surface of the first valve membrane 22 and the second valve membrane 23. A first transverse... The heat-sealing line 3, the second horizontal heat-sealing line 4, the third horizontal heat-sealing line 5, the fourth horizontal heat-sealing line 6, and the fifth horizontal heat-sealing line 7 are used to heat-press the upper edges of the first cavity membrane 20 and the second cavity membrane 21 together. The third horizontal heat-sealing line 5 passes through each heat-resistant zone 2 and heat-presses the first cavity membrane 20, the second cavity membrane 21, the first valve membrane 22, and the second valve membrane 23 together. The fourth horizontal heat-sealing line 6 and the fifth horizontal heat-sealing line 7 connect the first cavity membrane 20 and the second valve membrane 21 together. 0. The lower edges of the second cavity membrane 21 are hot-pressed together; multiple vertical sealing hot-pressing lines 8 are provided on the membrane stack layer 1. The vertical sealing hot-pressing lines 8 are located between adjacent heat-resistant zones 2. The vertical sealing hot-pressing lines 8 extend upward to the third horizontal sealing hot-pressing line 5 and downward to the fifth horizontal sealing hot-pressing line 7. The area between the second horizontal sealing hot-pressing line 4 and the third horizontal sealing hot-pressing line 5 is a common inflation channel 9. One end of the common inflation channel 9 is a closed end, and the other end is an inflation port; multiple vertical sealing hot-pressing lines 8 connect the first cavity membrane 20 and the second cavity membrane 21. The first valve membrane 22 and the second valve membrane 23 are heat-pressed together. After inflation, multiple vertical sealing heat-pressing lines 8 form multiple air columns 10 between the first cavity membrane and the second cavity membrane. Multiple heat-pressing points 11 are located on the membrane stack layer 1 above the fourth horizontal sealing heat-pressing line 6. These multiple heat-pressing points 11 form two parallel discontinuous heat-pressing lines. The heat-pressing points, located in the area between adjacent vertical sealing heat-pressing lines 8, heat-press together the first cavity membrane 20 and the second cavity membrane 21, while maintaining unobstructed airflow in the air columns 10. Heat-pressing is performed at the position of the fifth horizontal sealing heat-pressing line 7 after the membrane stack layer 1 is folded in half, and the left side 12 and right side 13 of the membrane stack layer 1 are also heat-pressed together to form a bag structure.
[0017] After inflation, the bag forms a three-dimensional barrel-shaped structure. The area between the two discontinuous heat-sealing lines is the bending transition zone, where the barrel wall bends into the bottom. The area from the discontinuous heat-sealing lines to the fourth horizontal sealing heat-sealing line 6 forms a support ring at the bottom of the barrel. This support ring is filled with gas, providing reinforcement. Multiple air columns 10 provide load-bearing capacity, allowing the inflated garbage bag to stand upright. The fourth horizontal sealing heat-sealing line 6 and the fifth horizontal sealing heat-sealing line 7 are located in the middle area of the bottom of the barrel. They are not inflated and only serve to seal the bottom, without providing support.
[0018] The area between the first horizontal sealing heat-pressing line 3 and the second horizontal sealing heat-pressing line 4 is the carrying area, and the carrying area has a carrying hole 14.
[0019] Multiple hot-pressing blocks 15 are arranged on the membrane stack 1 and below the third horizontal sealing hot-pressing line 5. The multiple hot-pressing blocks 15 are located on the same straight line, forming a discontinuous hot-pressing band. There are two discontinuous hot-pressing bands, which are parallel to each other. The hot-pressing blocks 15 in the area between adjacent vertical sealing hot-pressing lines heat-press together the first cavity membrane 20 and the second cavity membrane 21, and can maintain the smooth airflow of the air column.
[0020] The addition of a discontinuous hot-pressing belt creates a bending zone. When the bag is inflated, the entire bag contracts, generating stress in the bending zone. This causes the portion from the bending zone to the opening of the bin to expand outward, making the opening larger and facilitating the disposal of garbage into the bin.
[0021] The first valve membrane 22 and the second valve membrane 23 on the membrane stack 1 are located on the left and right sides of the heat-resistant zone 2, respectively, with a left hot-pressing line 16 and a right hot-pressing line 17. The difference between the left hot-pressing line 16 and the right hot-pressing line 17 is the airflow channel 18 of the membrane valve. The left hot-pressing line 16 and the right hot-pressing line 17 are tapered into a V-shape and gradually narrow along the air intake direction during inflation. A check valve type hot-pressing block 19 is provided at the outlet of the airflow channel 18 to improve the airtightness of the membrane valve.
[0022] Working principle: The three-dimensional molded garbage bag of this application forms a cylindrical structure with a closed bottom after inflation, which can stand upright. Due to the setting of the non-continuous heat-pressing belt, the circular port of the garbage bag expands outward after inflation, making it more convenient to use. The garbage bag is disposable. After the garbage is full, the garbage bag can be lifted away through the handle hole 14.
[0023] This application has a wide range of uses and is more suitable for use during travel. The garbage bag is easy to carry. When inflated, it becomes a garbage can. Of course, it can also be used as an inflatable mat, so you can sit on it when you are tired.
[0024] Furthermore, the different embodiments or examples described herein, as well as the features of those embodiments or examples, may be combined and integrated without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that these embodiments are exemplary and should not be construed as limiting the present invention.
Claims
1. A three-dimensional molded garbage bag, characterized in that: The membrane stack includes a membrane layer composed of a first cavity membrane, a second cavity membrane, a first valve membrane, and a second valve membrane stacked together. The first and second valve membranes are located between the first and second cavity membranes. Multiple heat-resistant zones are distributed from left to right on the contact surface of the first and second valve membranes. From the upper edge to the lower edge of the membrane stack, a first, second, third, fourth, and fifth horizontal sealing heat-pressing line are sequentially provided. The first and second horizontal sealing heat-pressing lines heat-press the upper edges of the first and second cavity membranes together. The third horizontal sealing heat-pressing line passes through each heat-resistant zone and heat-presses the first and second cavity membranes together. The fourth and fifth horizontal sealing heat-pressing lines heat-press the lower edges of the first and second cavity membranes together. Multiple vertical sealing heat-pressing lines are provided on the membrane stack, located between adjacent heat-resistant zones. Between the zones, the vertical sealing heat-pressing line extends upward to the third horizontal sealing heat-pressing line and downward to the fifth horizontal sealing heat-pressing line. The area between the second and third horizontal sealing heat-pressing lines is a common inflation channel, with one end being a closed end and the other end being an inflation port. Multiple vertical sealing heat-pressing lines heat-press and connect the first cavity membrane, the second cavity membrane, the first valve membrane, and the second valve membrane together. After inflation, the multiple vertical sealing heat-pressing lines form multiple air columns from the first and second cavity membranes. Multiple heat-pressing points are provided on the membrane stack layer above the fourth horizontal sealing heat-pressing line. These multiple heat-pressing points form two parallel discontinuous heat-pressing lines. The area between adjacent vertical sealing heat-pressing lines heat-press and connect the first and second cavity membranes together, while maintaining unobstructed airflow in the air columns. Heat-pressing connection is performed at the position of the fifth horizontal sealing heat-pressing line after the membrane stack layer is folded in half, and the left and right sides of the membrane stack layer are also heat-pressed together to form a bag structure.
2. The three-dimensional molded garbage bag according to claim 1, characterized in that: The area between the first and second horizontal sealing heat-pressing lines is the handle area.
3. The three-dimensional molded garbage bag according to claim 2, characterized in that: The carrying area has a carrying hole.
4. The three-dimensional molded garbage bag according to claim 1, characterized in that: Multiple hot-pressing blocks are provided on the membrane stack layer and below the third horizontal sealing hot-pressing line. The multiple hot-pressing blocks are located on the same straight line to form a discontinuous hot-pressing band. The hot-pressing blocks are located in the area between adjacent vertical sealing hot-pressing lines to hot-press the first cavity membrane and the second cavity membrane together, and can maintain the smooth airflow of the air column.
5. The three-dimensional molded garbage bag according to claim 4, characterized in that: The non-continuous hot pressing belt is provided in two parts, and the two non-continuous hot pressing belts are parallel to each other.
6. The three-dimensional molded garbage bag according to claim 1, characterized in that: The first valve membrane and the second valve membrane on the membrane stack are located on the left and right sides of the heat-resistant zone, respectively, with a left hot pressing line and a right hot pressing line. The difference between the left hot pressing line and the right hot pressing line is the airflow channel of the membrane valve. The left hot pressing line and the right hot pressing line are in a narrowing V-shape and the airflow channel gradually narrows along the air intake direction during inflation.
7. The three-dimensional molded garbage bag according to claim 6, characterized in that: The outlet of the airflow channel is equipped with a check valve-type hot press block.