Drawing rope side edge shaping outer box
By using the flip-up panel and card slot structure of the pull-out rope side-shaped outer box and the folding bottom plate design, the problems of high transportation costs of traditional trash cans and easy deformation of the sides of simple folding trash cans are solved, achieving stable unfolding and compact folding, improving ease of use and space utilization.
Patent Information
- Application Number
- CN202511876270.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-03-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional fixed-structure trash cans have high transportation and storage costs, while simple folding trash cans have insufficient side support and are prone to deformation, affecting ease of use and efficiency.
The outer box is shaped by a pull-out rope. Through the mechanical shaping structure of the flip plate and the locking block groove, combined with the bottom plate folding design, the bin can be stably unfolded and folded. The pull-out rope is used to seal the garbage bag.
It improves the ease of use and space utilization of trash cans, ensures stability when unfolded and compactness when folded, reduces the space occupied during transportation and storage, and enhances the fixing and sealing effect of trash bags.
Smart Images

Figure CN121590883A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of trash can technology, specifically to a pull-cord side-shaped outer box. Background Technology
[0002] In daily life, office settings, and in-vehicle use, trash cans serve as basic containers for collecting waste, and their ease of use, spatial adaptability, and practicality directly impact the user experience. While traditional fixed-structure trash cans offer stable storage space, their non-foldable rigid structure leads to higher transportation and storage costs. Furthermore, the number of trash cans that can be carried on the same transport vehicle is far less than that of foldable trash cans.
[0003] Existing simple folding trash cans have the following problems: Insufficient side support and easy deformation: Simple folding trash cans lack a reliable mechanical shaping structure. After being filled with trash, the sides are prone to collapse due to the weight of the trash or external force. This not only affects the convenience of trash disposal, but may also cause the trash bag to slide into the can as the sides deform, requiring frequent adjustment of the trash bag's position and reducing usage efficiency.
[0004] Therefore, we propose a drawstring side-shaped outer box to solve the above problems. Summary of the Invention
[0005] To address the technical problems mentioned above, the present invention provides a drawstring side-shaped outer box.
[0006] This invention is achieved using the following technical solution: a pull-out rope side-shaped outer box, comprising a bin body and a pull-out rope multi-layer garbage bag, wherein the pull-out rope multi-layer garbage bag is placed inside the bin body, and two side plates are provided on both sides of the bin body, with creases processed between the two side plates, a flap is processed inside one side plate, and a locking block is connected to one end of the flap, and a locking groove is opened inside the other side plate, with one end of the locking block inserted into the inside of the locking groove, and a flap opening is provided at the top of the pull-out rope multi-layer garbage bag, the flap opening is locked to the top outer side of the bin body, and two draw rope openings are processed on both sides of the flap opening.
[0007] Preferably, the bottom of the barrel is provided with two bottom plates, and creases are machined between the two bottom plates.
[0008] Preferably, a crossbar is provided at the top of the base plate, and the crossbar is rotatably connected to the surface of the base plate.
[0009] Preferably, the top of the base plate is fixedly connected with a fixing buckle, one end of the crossbar is machined with a fixing groove, and the fixing buckle is rotatably connected inside the fixing groove.
[0010] Preferably, the upper part of the base plate has a groove, one end of the flip plate is fixedly connected to one end of the groove, and the flip plate and the locking block are located inside the groove.
[0011] Preferably, when the barrel is folded, the outer sides of the two side plates are in contact with each other, and the outer sides of the two bottom plates are in contact with each other.
[0012] Preferably, when the barrel is unfolded and formed, the flap is folded to the middle of the outer side of the two side plates, and the locking block is inserted into the inside of the locking slot.
[0013] Preferably, when the barrel is unfolded and formed, the crossbar rotates to the top middle of the two base plates.
[0014] Compared with the prior art, the beneficial effects of the present invention are: In use, the invention involves folding the flap inside the groove of the bottom plate so that it spans the middle of the outer sides of the two side plates. The locking block at one end of the flap is then inserted into the slot of the other side plate to complete the side shaping. Then, the crossbar at the top of the bottom plate is rotated so that it spans the middle of the top of the two bottom plates. The position of the crossbar is locked by the buckle connecting the fixing buckle and the fixing slot to complete the bottom shaping.
[0015] In use, this invention involves placing a multi-layered garbage bag with a drawstring into a pre-shaped bin, folding the top of the garbage bag outwards and securing it to the outside of the top of the bin, thus securing the garbage bag. Once the bin is full, the drawstring on both sides of the garbage bag is pulled to tighten the opening and seal it. The sealed garbage bag can then be removed; the multi-layered design allows for direct removal of the next layer for continued use without the need for re-bagging, enhancing ease of use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the barrel folding of the present invention; Figure 3 This is a top view of the barrel body of the present invention; Figure 4 This is a schematic diagram of the crossbar structure of the present invention.
[0017] In the diagram: 1. Bin body; 101. Side plate; 102. Bottom plate; 2. Multi-layer garbage bag with pull rope; 201. Flip opening; 202. Pull rope opening; 3. Flip plate; 4. Locking block; 5. Locking groove; 6. Crossbar; 7. Fixing buckle; 8. Fixing groove. Detailed Implementation
[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0019] Example 1: Please refer to Figure 1 - Figure 4This embodiment of a pull-out rope side-shaped outer box includes a bucket body 1 and a pull-out rope multi-layer garbage bag 2. The pull-out rope multi-layer garbage bag 2 is placed inside the bucket body 1. Two side plates 101 are provided on both sides of the bucket body 1. A crease is processed between the two side plates 101. A flap 3 is processed inside one side plate 101. One end of the flap 3 is connected to a locking block 4. A locking groove 5 is opened inside the other side plate 101. One end of the locking block 4 is inserted into the inside of the locking groove 5. A flap opening 201 is provided at the top of the pull-out rope multi-layer garbage bag 2. The flap opening 201 is locked to the top outside of the bucket body 1. Two draw rope openings 202 are processed on both sides of the flap opening 201. The double side panels 101 and crease design on both sides of the barrel 1 provide a structural basis for the "folding and storage" and "unfolding and shaping" of the barrel 1: the crease adopts a flexible material embossing process, which can make the side panels 101 repeatedly bent without breaking, taking into account both the compactness when stored and the support stability when unfolded. The flap 3, along with the latch 4 and the slot 5, constitutes a side shaping mechanism: The flap 3 is made of a material integrally formed with the side plate 101. One end of the flap 3 is fixed inside the side plate 101. When unfolded, it can be folded outward and connected to the slot 5 of the other side plate 101 by the latch 4. The mechanical limiting effect of the latch locks the relative position of the two side plates 101, preventing the side of the barrel 1 from deforming after unfolding and ensuring the regularity of the internal space of the barrel 1. The opening 201 of the garbage bag 2 is snapped onto the outside of the top of the bin 1. The elastic tension of the opening 201 forms a tight fit with the top edge of the bin 1, which not only prevents the garbage bag 2 from slipping into the inside of the bin 1 during use, but also covers the top edge of the bin 1, improving the aesthetics. The drawstring openings 202 on both sides provide force points for the drawstring, allowing users to quickly tighten the opening of the garbage bag 2 by pulling the drawstring, achieving sealed storage and preventing garbage odor leakage or garbage scattering. Furthermore, the bottom of the barrel 1 is provided with two bottom plates 102, and creases are processed between the two bottom plates 102. The double bottom plates 102 and crease design at the bottom echo the crease structure of the side plates 101, realizing the folding of the barrel 1. The creases also adopt a flexible crease process, so that the two bottom plates 102 can be folded along the creases. With the folding of the side plates 101, the entire barrel 1 can be folded into a flat shape, which greatly reduces the space occupied during transportation and storage. In the unfolded state, the two base plates 102 are laid flat to form a complete bottom support surface for the bin 1. The cardboard material of the base plates 102 is used to support the weight of the garbage bag 2 and the garbage inside, preventing the bottom from collapsing due to the force and ensuring the stability of the bin 1 when it is placed. Furthermore, a crossbar 6 is provided on the top of the base plate 102. The crossbar 6 is rotatably connected to the surface of the base plate 102. A fixing buckle 7 is fixedly connected to the top of the base plate 102. A fixing groove 8 is machined at one end of the crossbar 6. The fixing buckle 7 is rotatably connected to the inside of the fixing groove 8. The rotatable connection between the crossbar 6 and the base plate 102 adopts a shaft hole fit structure to ensure that the crossbar 6 can rotate flexibly around the base plate 102 without affecting the folding and storage of the bucket body 1; the crossbar 6 is used to strengthen the bottom support strength. The fixing buckle 7 and the fixing groove 8 constitute a rotation limiting mechanism: the fixing buckle 7 is an elastic buckle structure, and the fixing groove 8 is a groove that matches the shape of the fixing buckle 7. When the crossbar 6 rotates to the middle of the top of the two base plates 102, the crossbar 6 is bonded to the surface of the base plate 102 with the adhesive that is pre-set. After the protective film is torn off, the position of the crossbar 6 is locked, so that the crossbar 6 is horizontally spanned above the two base plates 102, forming a "cross" support, dispersing the force on the bottom, and fixing the bottom of the barrel 1. Furthermore, a groove is provided on the upper part of the base plate 102, and one end of the flap 3 is fixedly connected to one end of the groove. The flap 3 and the locking block 4 are located inside the groove. The groove on the upper part of the base plate 102 provides storage space for the flap 3 and the locking block 4. Its size is precisely matched with the shape of the flap 3 and the locking block 4: when the barrel 1 is folded, the flap 3 is completely embedded in the groove, avoiding the flap 3 and the locking block 4 from being exposed, which would cause the volume to increase or the structure to interfere after folding, and ensuring the flatness of the barrel 1 in the folded state. The fixed connection between the flap 3 and one end of the groove adopts an integrated molding process, which not only ensures the structural strength of the flap 3, but also constrains the rotation trajectory of the flap 3 by the groove, preventing the flap 3 from shifting when unfolded or folded, and ensuring that the locking block 4 can be accurately aligned with the locking groove 5 to complete the snap-fit connection. Furthermore, when the barrel 1 is folded, the outer sides of the two side plates 101 contact each other, and the outer sides of the two bottom plates 102 contact each other. In the folded state, the outer sides of the side panel 101 and the bottom panel 102 are in contact with each other, which is based on the "symmetrical folding" design: the barrel 1 adopts a centrally symmetrical structure as a whole, and the folding direction of the side panel 101 and the bottom panel 102 both point to the center of the barrel 1, so that the components fit together after folding without any extra gaps, minimizing the storage volume. Furthermore, when the barrel 1 is unfolded and formed, the flap 3 folds over and is located in the middle of the outer side of the two side plates 101, and the locking block 4 is inserted into the inside of the locking groove 5. When the barrel 1 is unfolded and formed, the crossbar 6 rotates and is located in the middle of the top of the two bottom plates 102. When unfolded, the flap 3 folds to the middle of the outer side of the two side panels 101. Its position is designed to span the two side panels 101. The two side panels 101 that were originally movable are locked into a whole by the buckle connection between the latch 4 and the latch 5, ensuring the square shape of the barrel 1 after unfolding and preventing the sides from sinking inward. The crossbar 6 rotates to the middle of the top of the two bottom plates 102, which corresponds to the side shaping function of the flip plate 3: the bottom crossbar 6 locks the relative position of the bottom plate 102, and the side flip plate 3 locks the relative position of the side plate 101. The two work together to make the entire bin 1 form a stable structure after unfolding, with enough rigidity to withstand the weight of the garbage and minor external collisions.
[0020] Working principle: Storage state: The barrel 1 is folded through the creases of the side plate 101 and the bottom plate 102. The flip plate 3 and the locking block 4 are stored in the groove of the bottom plate 102. The crossbar 6 is rotated to fit the surface of the bottom plate 102 for storage. Finally, the outer sides of the two side plates 101 and the outer sides of the two bottom plates 102 contact each other to form a flat structure, which is convenient for transportation and storage and greatly reduces space occupation.
[0021] Unfolding and finalizing process: Manually pull the side panels 101 on both sides of the barrel 1 and the bottom plate 102 outward to unfold it to a horizontal state along the creases; Fold the flap 3 in the groove of the bottom plate 102 so that it spans the middle of the outer side of the two side plates 101. Insert the locking block 4 at one end of the flap 3 into the locking groove 5 of the other side plate 101 to complete the side shaping and lock the horizontal dimension of the barrel 1. Rotate the crossbar 6 at the top of the base plate 102 so that it spans the middle of the top of the two base plates 102. Lock the position of the crossbar 6 by the snap connection between the fixing buckle 7 and the fixing groove 8 to complete the bottom shaping and enhance the bottom load-bearing capacity. Ultimately, the barrel 1 forms a stable rectangular container space through the coordinated action of the side flap 3 and the bottom crossbar 6.
[0022] Garbage bag usage and replacement: Place the multi-layer garbage bag 2 with drawstring into the shaped bin 1, fold the top opening 201 of the garbage bag 2 outward and snap it onto the outside of the top of the bin 1 to fix the garbage bag 2. During use, when garbage is put into garbage bag 2, it will not slip off thanks to the fixing effect of the flap 201; Once the garbage bag is full, pull the drawstring 202 on both sides of the garbage bag 2 to tighten the opening and seal it. Then, take out the sealed garbage bag 2. The multi-layered garbage bag 2 can be directly pulled out to continue using the next layer without having to put the bag back on, which improves the convenience of use.
[0023] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.
Claims
1. A drawstring side-shaped outer box, comprising a bin body (1) and a multi-layer garbage bag with a drawstring (2), characterized in that, The pull-out multi-layer garbage bag (2) is placed inside the bin body (1). The bin body (1) has two side plates (101) on both sides. There are creases between the two side plates (101). One of the side plates (101) has a flap (3) inside. One end of the flap (3) is connected to a locking block (4). The other side plate (101) has a slot (5) inside. One end of the locking block (4) is inserted into the slot (5). The top of the pull-string multi-layer garbage bag (2) is provided with a flap (201), which is snapped onto the outside of the top of the bin (1). Two drawstring openings (202) are processed on both sides of the flap (201).
2. The drawstring side-shaped outer box according to claim 1, characterized in that, The bottom of the barrel (1) is provided with two bottom plates (102), and creases are processed between the two bottom plates (102).
3. The drawstring side-shaped outer box according to claim 2, characterized in that, A crossbar (6) is provided on the top of the base plate (102), and the crossbar (6) is rotatably connected to the surface of the base plate (102).
4. The drawstring side-shaped outer box according to claim 3, characterized in that, The top of the base plate (102) is fixedly connected with a fixing buckle (7), and one end of the crossbar (6) is machined with a fixing groove (8). The fixing buckle (7) is rotatably connected inside the fixing groove (8).
5. A drawstring side-shaped outer box according to claim 2, characterized in that, The upper part of the base plate (102) is provided with a groove, one end of the flip plate (3) is fixedly connected to one end of the groove, and the flip plate (3) and the card block (4) are located inside the groove.
6. The drawstring side-shaped outer box according to claim 2, characterized in that, When the barrel (1) is folded, the outer sides of the two side plates (101) come into contact with each other, and the outer sides of the two bottom plates (102) come into contact with each other.
7. The drawstring side-shaped outer box according to claim 1, characterized in that, When the barrel (1) is unfolded and formed, the flap (3) is folded to the middle of the outer side of the two side plates (101), and the card block (4) is inserted into the inside of the card slot (5).
8. A drawstring side-shaped outer box according to claim 3, characterized in that, When the barrel (1) is unfolded and formed, the crossbar (6) rotates to be located at the top middle of the two bottom plates (102).