Height-adjustable garbage can

Abstract

The utility model discloses a height-adjustable garbage can, aiming at the technical defects that the traditional garbage can is easy to hide dirt and the inner barrel is easy to deflect, a modularized sleeve structure and a composite sealing design are innovatively adopted. The outer cylinder is formed by longitudinally stacking a plurality of sleeves which can be connected in an inserted or buckled mode, a user can adjust the overall height by increasing or decreasing the number of the sleeves, the sleeves can be further split into sub-sleeves which can be stored in a nested mode, and the transportation and storage space is remarkably reduced. The bottom of the inner cylinder and the positioning column form a three-dimensional positioning structure through the limiting part, and zero-displacement fixation is realized by matching with the limiting groove of the base; the barrel cover is provided with a double-sealing structure, a lifting platform is in compression joint with the top of the outer barrel to form peripheral sealing, an inner side step covers the upper edge of the inner barrel, a gap is reserved to be matched with the thickness of a garbage bag, chippings are thoroughly prevented from entering an interlayer, an air cavity is formed in the inner wall of the sleeve to form a pressure balance channel with an inner barrel vent hole, and the garbage bag is prevented from bursting. The utility model has the advantages of height adjustability, dual leakage prevention and stable throwing, and is stable in structure and convenient to disassemble, assemble and adjust.

Description

Technical Field

[0001] This utility model belongs to the field of trash can technology, and in particular relates to a height-adjustable trash can. Background Technology

[0002] Traditional household trash cans generally use a nested inner and outer cylinder structure, allowing for convenient replacement of trash bags through detachable inner and outer cylinders.

[0003] However, the following technical defects were found in actual use: First, when fine garbage is put in, the particles are very easy to fall into the interlayer space from the annular gap between the inner cylinder and the outer cylinder, which accumulates over time and forms a dead corner that is difficult to clean thoroughly; Second, when garbage of larger weight is put in, the bottom of the inner cylinder lacks an effective fixing structure, and is prone to horizontal displacement when impacted, causing the cylinder to tilt, which in turn leads to problems such as the lid not closing tightly and garbage overflowing. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a height-adjustable trash can.

[0005] The objective of this utility model can be achieved through the following technical solution: This embodiment discloses a height-adjustable trash can, including a base, an inner cylinder disposed on the base, an outer cylinder disposed on the base and sleeved outside the inner cylinder, and a lid disposed on the outer cylinder. The outer cylinder is composed of several sleeves stacked longitudinally. Adjacent sleeves are fixedly connected by a detachable snap-fit ​​structure or by a detachable plug-in structure. The lid includes an annular cover ring. An openable and closable cover plate is hinged to the inner side of the cover ring. The edge of the cover ring is circumferentially expanded to form a platform that can press against the upper end of the outer cylinder. The inner side of the cover ring is provided with a step that can cover the upper edge of the inner cylinder and fit with it with a gap. The bottom of the inner cylinder protrudes to form a limiting part. The upper end surface of the base forms a first limiting groove that fits into the limiting part. The bottom of the limiting part is provided with a positioning post. The bottom of the first limiting groove has a positioning hole for the positioning post to be inserted.

[0006] Preferably, the snap-fit ​​structure includes a first slot at the bottom of the sleeve and a radial protrusion at the top of the sleeve that is adapted to the first slot. The insertion structure includes an insertion part at the bottom of the sleeve and a limiting protrusion at the top of the sleeve that is inserted into the insertion part. The outer sleeve forms a receiving space that is adapted to inner sleeves of different heights by increasing or decreasing the number of sleeves.

[0007] Preferably, the sleeve is composed of at least two sub-sleeves connected by insertion.

[0008] Preferably, a second slot is provided below the cantilever platform to fit into or engage with the radial protrusion or the limiting protrusion.

[0009] Preferably, the upper surface of the base is provided with a second limiting groove, the insertion part is inserted into the second limiting groove, and the side wall of the second limiting groove protrudes to form a positioning flange that matches the first slot at the bottom of the sleeve.

[0010] Preferably, the inner wall of the sleeve bulges outward to form an air cavity, and the side wall of the inner cylinder has a vent hole, forming a venting gap between the sleeve and the inner cylinder.

[0011] Preferably, the lower end face of the platform is provided with circumferentially distributed reinforcing ribs.

[0012] Preferably, the cover plate is embedded in the step, and a press-type opening and closing mechanism is provided between the cover plate and the cover ring. The press-type opening and closing mechanism includes a trigger head located at the bottom of the cover plate and a mounting groove located on the step. The mounting groove is used to install a rebound device adapted to the trigger head.

[0013] Preferably, the base is equipped with several casters.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The composite structure of the outer cylinder top edge being pressed by the lid lifting platform and the inner cylinder top edge being covered by the step forms a double seal, completely preventing fine garbage from entering the inner and outer cylinder gap and eliminating sanitary dead corners;

[0016] 2. The bottom of the inner cylinder adopts a three-dimensional constraint structure of limiting part and positioning column, which, together with the limiting groove and positioning hole of the base, realizes all-round restriction of the horizontal displacement and rotation of the inner cylinder, ensuring the vertical stability of the cylinder when heavy objects are placed, and eliminating the problem of poor closure of the lid.

[0017] 3. The outer cylinder is composed of several sleeves stacked longitudinally. Adjacent sleeves are connected by a detachable snap-fit ​​structure or plug-in structure. Users can increase or decrease the number of sleeves according to their needs. The sleeves can also be further disassembled into at least two sub-sleeves that can be plugged in and connected. The disassembled sub-sleeves can be completely nested for storage, reducing the space occupied by daily storage and transportation, improving logistics efficiency, reducing logistics costs, and individual damaged sleeves can be replaced individually, reducing usage costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the sleeve assembly into a sleeve structure.

[0021] Figure 4 This is a cross-sectional structural diagram of Implementation Scheme 1.

[0022] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0023] Figure 6 yes Figure 4 Enlarged schematic diagram of the structure at point B.

[0024] Figure 7 yes Figure 4 Enlarged schematic diagram of the structure at point C.

[0025] Figure 8 This is a schematic diagram of the cross-sectional structure of Implementation Scheme 2.

[0026] Figure 9 yes Figure 8 Enlarged schematic diagram of the structure at point D.

[0027] Figure 10 yes Figure 8 Enlarged schematic diagram of the structure at point E in the middle.

[0028] Figure 11 yes Figure 8 Enlarged schematic diagram of the structure at point F.

[0029] In the diagram, 1. Base; 11. Second limiting groove; 11a. Positioning flange; 13. First limiting groove; 131. Positioning hole; 2. Inner cylinder; 21. Vent hole; 22. Vent gap; 23. Limiting part; 24. Positioning post; 3. Outer cylinder; 31. Sleeve; 31a. Sub-sleeve; 32. Air chamber; 4. Bucket lid; 41. Lid ring; 411. Platform; 412. Reinforcing rib; 413. Second slot; 414. Step; 42. Cover plate; 5. Bucket structure; 51. First slot; 52. Radial protrusion; 6. Insertion structure; 61. Insertion part; 62. Limiting protrusion; 7. Press-type opening and closing mechanism; 71. Trigger head; 72. Mounting groove; 8. Caster wheel. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] like Figure 1 , Figure 2 and Figures 4-11As shown, this embodiment discloses a height-adjustable trash can, including a base 1, an inner cylinder 2 disposed on the base 1, an outer cylinder 3 disposed on the base 1 and sleeved outside the inner cylinder 2, and a lid 4 disposed on the outer cylinder 3. The outer cylinder 3 is composed of a plurality of sleeves 31 stacked longitudinally, and adjacent sleeves 31 are fixedly connected by a detachable snap-fit ​​structure 5 or by a detachable plug-in structure 6. The lid 4 includes an annular cover ring 41, and an openable mechanism is hinged to the inner side of the cover ring 41. The closed cover plate 42 and the cover ring 41 have a platform 411 that can press against the upper end of the outer cylinder 3. The inner side of the cover ring 41 is provided with a step 414 that can cover the upper edge of the inner cylinder 2 and fit with it. The bottom of the inner cylinder 2 protrudes to form a limiting part 23. The upper end surface of the base 1 is formed with a first limiting groove 13 that is inserted and fitted with the limiting part 23. The bottom of the limiting part 23 is provided with a positioning post 24. The bottom of the first limiting groove 13 is provided with a positioning hole 131 for the positioning post 24 to be inserted.

[0032] The height-adjustable trash can described in this embodiment achieves height adjustment through an innovative structural design, and has the dual technical effects of composite leak-proof sealing and stable use. The specific working principle is as follows:

[0033] Height adjustment mechanism: Users can add or remove the number of sleeves 31 as needed. Adjacent sleeves 31 can be quickly connected or disassembled via a snap-fit ​​structure 5 or a plug-in structure 6. The sleeves are stacked to form the overall height of the outer cylinder 3, achieving a stepped adjustment of the trash can's volume. The adjustment accuracy is the height of a single sleeve 31, which is typically 50-100mm.

[0034] Inner cylinder stabilization structure: The cantilever 411 of the cover ring 41 presses against the upper edge of the outer cylinder 3, blocking external garbage from entering the gap between the inner and outer cylinders, forming a first-level seal; the step 414 forms a gap fit with the upper edge of the inner cylinder 2, and the inner cylinder 2 and the outer cylinder 3 are independent of each other. The preferred gap of 1-2mm is adapted to the thickness of common garbage bags on the market, forming a second-level seal, which can not only intercept fine garbage falling into the interlayer, but also cover the top of the garbage bag to solve the problem of exposure. At the same time, the step 414 covers the upper edge of the inner cylinder 2, and the upper edge of the inner cylinder 2 is hidden below the step 414, preventing the upper edge of the inner cylinder 2 from frequently colliding with external objects during use. When the inner cylinder 2 is installed, its bottom limiting part 23 is embedded into the first limiting groove 13 of the base 1, and the positioning post 24 is inserted into the positioning hole 131. This insertion structure forms a three-dimensional constraint, restricting the horizontal displacement and rotational freedom of the inner cylinder 2, ensuring that the inner cylinder 2 remains vertically stable when subjected to garbage impact.

[0035] like Figure 2 , Figure 6 , Figure 10As shown, the snap-fit ​​structure 5 includes a first slot 51 at the bottom of the sleeve 31 and a radial protrusion 52 at the top of the sleeve 31 that is adapted to the first slot 51. The insertion structure 6 includes an insertion part 61 at the bottom of the sleeve 31 and a limiting protrusion 62 at the top of the sleeve 31 that is inserted into the insertion part 61. The outer cylinder 3 forms a receiving space that is adapted to the inner cylinder 2 of different heights by increasing or decreasing the number of sleeves 31.

[0036] In this embodiment, the snap-fit ​​structure 5 and the plug-in structure 6 work together to achieve rapid height adjustment of the outer cylinder 3 and stable cooperation between the sleeve 31.

[0037] When assembling the sleeve 31, a snap-fit ​​structure 5 is used for connection. The radial protrusion 52 at the bottom of the upper sleeve 31 is aligned with the first groove 51 of the lower sleeve. The sleeve is pressed down vertically to make the radial protrusion 52 slide into the locking surface of the first groove 51. The installation and disassembly are quick. The self-locking is achieved by the elastic deformation of the radial protrusion 52 and the first groove 51, resulting in high structural stability.

[0038] When assembling the sleeve 31, the plug-in structure 6 is used for connection. Simply align the plug-in part 61 of the upper sleeve 31 with the limiting protrusion 62 of the lower sleeve 31 and insert it. The limiting protrusion 62 enables the lower sleeve 31 to radially limit the upper sleeve 31. The plug-in structure 6 has no elastic deformation parts, no fatigue failure, and is suitable for long-term repeated assembly and disassembly.

[0039] The total height of the outer cylinder 3 can be adjusted by increasing or decreasing the number of sleeves 31 to accommodate inner cylinders 2 of different heights. This ensures that the upper edge of the outer cylinder 3 is always pressed against the lid lift 411, while the upper edge of the inner cylinder 2 is completely covered by the step 414. Both the snap-fit ​​structure 5 and the plug-in structure 6 are suitable for frequent use and adjustment by household users. The outer cylinder 3 can be disassembled into individual sleeves 31 and nested with other components for storage, reducing space occupied during transportation, improving logistics efficiency, and reducing logistics costs. Furthermore, a single damaged sleeve 31 can be replaced individually, reducing usage costs.

[0040] like Figure 3 As shown, in this embodiment, the sleeve 31 is composed of at least two sub-sleeves 31a connected by insertion.

[0041] The sleeve 31 can be further divided into sub-sleeves 31a. The sub-sleeves 31a can be completely nested and stored together, reducing daily storage space and transportation space, which can further improve logistics efficiency and reduce logistics costs.

[0042] like Figure 5 As shown, a second slot 413 is provided below the cantilever platform 411 to be adapted to and inserted into the radial protrusion 52 or the limiting protrusion 62.

[0043] When the lid 4 is closed, the second slot 413 below the lifting platform 411 aligns with the radial protrusion 52 or the limiting protrusion 62 on the top of the sleeve 31. Pressing down on the lid 4 utilizes elastic deformation to engage the radial protrusion 52 or the limiting protrusion 62 into the second slot 413, forming a radial constraint. The second slot 413 locks the lid 4 to the outer cylinder 3, enhancing the sealing effect and preventing the leakage of internal garbage odors.

[0044] like Figure 2 , Figure 4 , Figure 7 , Figure 8 , Figure 11 As shown, the upper end face of the base 1 is provided with a second limiting groove 11, and the insertion part 61 is inserted into the second limiting groove 11. The side wall of the second limiting groove 11 protrudes to form a positioning flange 11a that is adapted to the first slot 51 at the bottom of the sleeve 31.

[0045] When adjacent sleeves 31 are fixedly connected by a snap-fit ​​structure 5, the bottom of the sleeve 31 is aligned with the second limiting groove 11 of the base 1 and inserted. The first locking groove 51 is guided into place by the guide slope of the positioning flange 11a. When the sleeve 31 is fully pressed down, the positioning flange 11a locks with the first locking groove 51, achieving radial constraint. The positioning flange 11a on the base 1 and the radial protrusion 52 of the sleeve 31 snap-fit ​​form upper and lower double locking points, constructing a three-dimensional anti-displacement frame and improving the stability of the connection structure between the outer cylinder 3 and the base 1.

[0046] When adjacent sleeves 31 are detachably connected by a plug-in structure 6, the plug-in part 61 is inserted into the first limiting groove 11 to realize the quick connection between the outer cylinder 3 and the base 1. At the same time, the first limiting groove 11 radially limits the outer cylinder 3, and the outer cylinder 3 and the base 1 can be quickly separated, which facilitates the removal and cleaning of the inner cylinder 2.

[0047] like Figure 4 , Figure 8 As shown, the inner wall of the sleeve 31 has a radially outwardly protruding air cavity 32, and the inner cylinder 2 has a vent hole 21 on its side wall, forming a vent gap 22 between the sleeve 31 and the inner cylinder 2.

[0048] When the lid 4 is opened and a garbage bag is placed inside the inner cylinder 2, the gas inside the inner cylinder 2 is discharged through the vent 21 on the side wall, making it easier to place the garbage bag. When the lid 4 is closed and garbage is disposed of, as garbage continuously fills the inner cylinder 2, the air pressure inside the inner cylinder 2 increases, and excess gas is discharged through the vent 21 to the air chamber 32. The vent gap 22 connects all the air chambers 32, which buffers and quickly discharges the gas, preventing the garbage bag from bursting.

[0049] like Figure 2 , Figure 5 , Figure 9As shown, the lower end face of the cantilever platform 411 is provided with circumferentially distributed reinforcing ribs 412. The reinforcing ribs 412 significantly improve the bending stiffness of the cantilever platform 411, and the circumferentially distributed reinforcing ribs 412 form discrete support points, so that the contact pressure distribution between the cantilever platform 411 and the outer cylinder 3 is uniform.

[0050] Furthermore, such as Figure 1 , Figure 2 As shown, the cover plate 42 is embedded in the step 414, and a press-type opening and closing mechanism 7 is provided between the cover plate 42 and the cover ring 41. The press-type opening and closing mechanism 7 includes a trigger head 71 at the bottom of the cover plate 42 and a mounting groove 72 on the step 414. The mounting groove 72 is used to install a rebound device (not shown in the figure) that is compatible with the trigger head 71.

[0051] When the user presses the front end of the cover plate 42, the trigger head 71 presses down on the rebound device in the mounting groove 72. The spring inside the rebound device is compressed and stores energy. When the user needs to open the cover plate 42, the user presses the front end of the cover plate 42. When the trigger head 71 passes the dead point of the rebound device, the spring 73 releases energy and pushes the cover plate 42 to quickly spring up around the hinge axis to the maximum opening angle. This makes it convenient for the user to open the cover plate 42, improves the convenience of one-handed operation, prevents children or pets from accidentally opening it, and enhances safety.

[0052] Furthermore, a number of casters 8 are installed at the bottom of the base 1.

[0053] In this embodiment, the omnidirectional wheels 8 at the bottom of the base 1 enable flexible movement and stable parking of the trash can. Most of the omnidirectional wheels 8 are equipped with foot locks, which lock the wheels with internal brake pads to stop the trash can, facilitating daily use. The trash can can only be moved after the locks are unlocked. This is especially important when using a large-capacity inner tube 2, where the weight of the trash inside, combined with the trash can itself, makes moving the entire trash can very difficult. By installing several omnidirectional wheels 8 at the bottom of the base 1, users can easily push the trash can.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A height-adjustable trash can, comprising a base (1), an inner cylinder (2) disposed on the base (1), an outer cylinder (3) disposed on the base (1) and fitted over the inner cylinder (2), and a lid (4) disposed on the outer cylinder (3), characterized in that, The outer cylinder (3) is composed of several sleeves (31) stacked longitudinally. Adjacent sleeves (31) are fixedly connected by a detachable snap-fit ​​structure (5) or by a detachable plug-in structure (6). The lid (4) includes an annular cover ring (41). An openable and closable cover plate (42) is hinged to the inner side of the cover ring (41). The edge of the cover ring (41) is circumferentially extended to form a platform (411) that can press against the upper end of the outer cylinder (3). The inner side of the ring (41) is provided with a step (414) that can cover the upper edge of the inner cylinder (2) and fit with it with a gap. The bottom of the inner cylinder (2) protrudes to form a limiting part (23). The upper end surface of the base (1) is formed with a first limiting groove (13) that is inserted and fitted with the limiting part (23). The bottom of the limiting part (23) is provided with a positioning post (24). The bottom of the first limiting groove (13) is provided with a positioning hole (131) for the positioning post (24) to be inserted.

2. The height-adjustable trash can according to claim 1, characterized in that, The buckle structure (5) includes a first slot (51) at the bottom of the sleeve (31) and a radial protrusion (52) at the top of the sleeve (31) and adapted to the first slot (51). The plug-in structure (6) includes a plug-in part (61) at the bottom of the sleeve (31) and a limiting protrusion (62) at the top of the sleeve (31) and plugged into the plug-in part (61). The outer cylinder (3) forms a receiving space adapted to the inner cylinder (2) of different heights by increasing or decreasing the number of sleeves (31).

3. A height-adjustable trash can according to claim 2, characterized in that, The sleeve (31) is composed of at least two sub-sleeves (31a) connected by insertion.

4. A height-adjustable trash can according to claim 2, characterized in that, The platform (411) is provided with a second slot (413) below it, which is adapted to the radial protrusion (52) or the limiting protrusion (62) and allows them to be engaged.

5. A height-adjustable trash can according to claim 2, characterized in that, The upper end face of the base (1) is provided with a second limiting groove (11), and the insertion part (61) is inserted into the second limiting groove (11). The side wall of the second limiting groove (11) protrudes to form a positioning flange (11a) that matches the first slot (51) at the bottom of the sleeve (31).

6. A height-adjustable trash can according to claim 1, characterized in that, The inner wall of the sleeve (31) is radially convex to form an air cavity (32), and the side wall of the inner cylinder (2) is provided with a vent hole (21). A vent gap (22) is formed between the sleeve (31) and the inner cylinder (2).

7. A height-adjustable trash can according to any one of claims 1-6, characterized in that, The lower end face of the cantilever platform (411) is provided with circumferentially distributed reinforcing ribs (412).

8. A height-adjustable trash can according to any one of claims 1-6, characterized in that, The cover plate (42) is embedded in the step (414), and a press-type opening and closing mechanism (7) is provided between the cover plate (42) and the cover ring (41). The press-type opening and closing mechanism (7) includes a trigger head (71) at the bottom of the cover plate (42) and a mounting groove (72) on the step (414). The mounting groove (72) is used to install a rebound device that is compatible with the trigger head (71).

9. A height-adjustable trash can according to any one of claims 1-6, characterized in that, The base (1) is equipped with several casters (8) at its bottom.

Images