Garbage can

Abstract

The utility model provides a garbage can which comprises a can body used for limiting an inner cavity, the can body comprises a can bottom and a can wall, the can wall can contract or expand in the circumferential direction of the can wall, the garbage can further comprises an adjusting assembly, and the adjusting assembly is arranged on the circumferential side of the can wall so that the can wall can contract or expand under the action of the adjusting assembly. According to the garbage can, the adjusting assembly is used in cooperation with the can wall, the can wall shrinks or expands under the action of the adjusting assembly so that the size of the can opening can be changed, the same garbage can can be matched with plastic bags of different sizes, and the use experience of the garbage can is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a trash can. Background Art

[0002] Trash cans serve as temporary storage for garbage in daily life. When people use trash cans, they usually put discarded plastic bags inside the trash cans and clean the trash cans by replacing the plastic bags.

[0003] However, in actual use, since plastic bags are of different sizes, they may not fit into the opening of the trash can, which causes inconvenience in use. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the trash can and plastic bags of different sizes are not compatible, thereby affecting the user experience.

[0005] To this end, the utility model provides a trash can, comprising a barrel body for defining an inner cavity, the barrel body comprising a barrel bottom and a barrel wall, the barrel wall being shrinkable or expandable along its circumference, and the trash can also include an adjustment component, the adjustment component being arranged on the circumferential side of the barrel wall so that the barrel wall can shrink or expand under the action of the adjustment component.

[0006] In an optional embodiment, the barrel wall includes an outer edge facing the outside of the barrel wall, an inner edge facing the inside of the barrel wall, and blades between adjacent outer edges and inner edges, wherein the outer edges and the inner edges are arranged vertically.

[0007] In an optional embodiment, the blade includes a first region near the outer edge, a second region near the inner edge, and a third region between the first region and the second region, wherein the average thickness of the blade in the first region and the second region are both smaller than the average thickness of the blade in the third region.

[0008] In an optional embodiment, the barrel bottom and the barrel wall are integrally formed, and the barrel wall includes a transition area, and the transition area is between the outer edge and the barrel bottom.

[0009] In an optional embodiment, one end of the outer edge adjacent to the barrel bottom extends toward adjacent inner edges on the left and right sides respectively and intersects with adjacent inner edges, and the intersection point is a certain distance away from the barrel bottom.

[0010] In an optional embodiment, when the barrel wall includes a transition area, the intersection point is on the transition area.

[0011] In an optional embodiment, the adjustment assembly includes an outer hoop and / or an inner hoop, the outer hoop is arranged on the outer peripheral side of the barrel wall to cause the barrel wall to contract when the outer hoop moves upward from the bottom along the axial direction of the barrel wall, and the inner hoop is arranged on the inner peripheral side of the barrel wall to cause the barrel wall to expand when the inner hoop moves downward toward the barrel bottom along the axial direction of the barrel wall.

[0012] In an optional embodiment, the outer hoop and / or the inner hoop include an anti-slip member, which acts on the barrel wall to prevent the adjustment assembly from sliding off the outer circumferential side or the inner circumferential side of the barrel wall.

[0013] In an optional embodiment, the outer hoop includes a clamping ring with a U-shaped structure, and the clamping ring includes a first end, a second end, and a first middle portion between the first end and the second end.

[0014] In an optional embodiment, the barrel wall includes an outer edge facing the outside of the barrel wall formed by repeated bending and two blades adjacent to the outer edge, the inner side surfaces of the first end and the second end are respectively in contact with two adjacent blades of the outer edge, and the surface where the first end and / or the second end contacts the blades is a slope that matches the surface of the blade.

[0015] In an optional embodiment, the outer hoop includes a clamping ring with a U-shaped structure, and the clamping ring includes a first middle portion. When the outer hoop includes an anti-slip member, the anti-slip member is arranged on the first middle portion.

[0016] In an optional embodiment, the anti-slip component includes an elastic arm with a U-shaped structure and a connecting portion connected to the elastic arm at a certain angle, and the connecting portion is connected to the first middle portion.

[0017] In an optional embodiment, a notch in a U-shaped structure corresponding to the elastic arm is provided on the first middle portion.

[0018] In an optional embodiment, there are at least two anti-slip parts.

[0019] In an optional embodiment, when there are multiple anti-slip parts, the anti-slip parts are arranged at intervals on the clamping ring.

[0020] In an optional embodiment, the inner hoop includes a hoop member corresponding to the shape of the barrel bottom and a U-shaped protrusion arranged on the hoop member, and the protrusion includes a first arm, a second arm and a second middle portion between the first arm and the second arm.

[0021] In an optional embodiment, the barrel wall includes an outer edge facing the outside of the barrel wall formed by repeated bending and two blades adjacent to the outer edge, the outer side surfaces of the first arm and the second arm respectively contact the two adjacent blades of the outer edge, and the surface where the first arm and / or the second arm contacts the blades is a slope that matches the surface of the blade.

[0022] In an optional embodiment, the inner hoop includes a hoop member. When the inner hoop includes an anti-slip member, the anti-slip member is arranged on the hoop member, and the anti-slip member includes a clamping portion with a U-shaped structure and a boss that forms a certain angle with the surface of the clamping portion and extends to the outside of the surface, and the clamping portion is connected to the hoop member.

[0023] In an optional embodiment, there are at least two anti-slip parts.

[0024] In an optional embodiment, when there are multiple anti-slip parts, the anti-slip parts are arranged at intervals on the hoop.

[0025] In an optional embodiment, the adjustment component includes an adjustment member, and the adjustment member is used to adjust the size of the adjustment component in the circumferential direction of the barrel wall so that the barrel wall can shrink or expand under the action of the adjustment component.

[0026] In an optional embodiment, a through hole is provided on the barrel wall, the adjustment component is a rope, and the adjusting member is a knot or a buckle. After the rope passes through the through hole, the size of the rope in the circumferential direction of the barrel wall is adjusted via the knot or the buckle so that the barrel wall contracts under the action of the rope.

[0027] In an optional embodiment, anti-slip grooves are provided on the barrel wall, and the anti-slip grooves cooperate with the adjustment component to prevent the adjustment component from sliding off the outer circumference or the inner circumference of the barrel wall.

[0028] In an optional embodiment, the barrel wall is made of polypropylene.

[0029] The trash can provided by the utility model cooperates with the bucket wall through the adjustment component, so that the bucket wall shrinks or expands under the action of the adjustment component to change the size of the bucket mouth, so that the same trash can can be adapted to plastic bags of different sizes, thereby improving the user experience of the trash can. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of a trash can body provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1 A partial enlarged view of the barrel wall at position A in the barrel body shown;

[0033] Figure 3 for Figure 1 A partial cross-sectional schematic diagram of the blades on the barrel shown;

[0034] Figure 4 for Figure 1 A partial enlarged view of the barrel wall at position B in the barrel body shown;

[0035] Figure 5 A schematic diagram of the three-dimensional structure of an adjustment assembly of a trash can provided in an embodiment of the present application;

[0036] Figure 6 for Figure 5 The structure diagram of the snap ring in the adjustment assembly shown in one embodiment;

[0037] Figure 7 for Figure 5 A schematic diagram of the structure of a snap ring in an adjustment assembly in another embodiment;

[0038] Figure 8 This is a schematic diagram of the three-dimensional structure of a trash can in a normal state provided in an embodiment of the present application;

[0039] Fig. 9 for Figure 8 Schematic diagram of the three-dimensional structure of the trash can in a contracted state under the action of the adjustment component shown in FIG.

[0040] Fig.10 It is a schematic diagram of the three-dimensional structure of the adjustment assembly of the trash can provided in one embodiment of the present application;

[0041] Fig.11 for Fig.10 The structure diagram of the protrusion in the adjustment assembly shown in one embodiment;

[0042] Fig.12 for Fig.10The structure diagram of the anti-slip member in the adjustment assembly shown in one embodiment;

[0043] Fig.13 This is a schematic diagram of the three-dimensional structure of the trash can body provided in the embodiment of the present application in a normal state;

[0044] Fig.14 for Fig.13 Schematic diagram of the three-dimensional structure of the trash can in an expanded state under the action of the adjustment component shown in FIG.

[0045] Fig.15 A schematic diagram of the three-dimensional structure of a trash can body provided in an embodiment of the present application;

[0046] Fig.16 It is a schematic diagram of the three-dimensional structure of the adjustment assembly of the trash can provided in one embodiment of the present application;

[0047] Fig.17 for Fig.16 A partial enlarged view of the adjustment component at position C is shown.

[0048] Description of reference numerals:

[0049] 1-barrel body; 11-barrel bottom; 12-barrel wall; 13-transition area; 131-buffer area; 121-outer edge; 122, 122'-inner edge; 123, 123'-blade; 1231, 1231'-first area; 1232, 1232'-second area; 1233, 1233'-third area; 124, 124'-bending area; 21-outer hoop; 211-clamp ring; 2111-first end; 2112-second end; 2113-first middle part; 25, 25 '-anti-slip part; 251-elastic arm; 252-connecting part; 253-notch; 22-inner hoop; 221-hoop; 222-protrusion; 2221-first arm; 2222-second arm; 2223-second middle part; 254-clamping part; 255, 255'-boss; 14-through hole; 23-hoop; 231-inner tube; 2311-protrusion; 232-adjusting part; 2321-spring; 2322-outer tube; 2323-slide; 2324-knob; 2325-connecting line. DETAILED DESCRIPTION

[0050] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] In daily life, trash cans are essential items for carrying garbage. For the convenience of use and waste utilization, people usually put a discarded plastic bag on the trash can as a trash bag and throw the garbage into the trash bag; when it is full, the trash bag is taken out of the trash can and thrown away with the garbage, which is clean and hygienic. However, in actual use, due to the different sizes of plastic bags, they may not be compatible with the size of the trash can mouth. If the plastic bag is too large, it will cause waste, and if the plastic bag is too small, it will not fit, which will cause inconvenience in use. To this end, the present application provides a trash can, which can adapt to plastic bags of different sizes by adjusting the wall of the trash can and thus changing the size of the mouth of the trash can.

[0055] Specifically, the present application provides a trash can, including a barrel body for defining an inner cavity, the barrel body including a barrel bottom and a barrel wall, wherein the barrel wall can shrink or expand along its circumference. In some embodiments, the barrel wall is made of non-rigid materials, such as paper materials, easily foldable plastics such as polypropylene, and highly elastic polymer materials with reversible deformation such as rubber, etc. The barrel wall made of these materials has the characteristics of being able to shrink or expand under the action of external force and reset after the external force is removed. In addition, the barrel wall and the barrel bottom can be made in an integral molding manner, or they can be made of different materials separately according to needs and then spliced ​​into a barrel body. It should be noted that the barrel bottom can be set to different shapes according to needs, such as round, oval, square, etc., and the barrel wall forms a corresponding column around the barrel bottom.

[0056] On this basis, the trash can also includes an adjustment component, which is arranged on the circumference of the barrel wall so that the barrel wall shrinks or expands under the action of the adjustment component, thereby achieving the purpose of adjusting the size of the barrel mouth by shrinking or expanding the barrel wall. In practical applications, the barrel mouth size can be adjusted to be greater than, equal to or less than the barrel bottom size by using the adjustment component according to needs. In some embodiments, the adjustment component can be set as a hoop that matches the shape of the barrel bottom, so as to facilitate the coordinated use of the barrel bottom and the barrel wall and improve the service life of the trash can. For example, when the barrel bottom is round, the adjustment component is a round hoop, and when the barrel bottom is square, the adjustment component is a square hoop. In other embodiments, the adjustment component can be set to adapt to the shape of the barrel wall and the shape of the barrel bottom. Here, the adjustment component includes a hoop and a contact portion arranged on the hoop that contacts the barrel wall, wherein the hoop is adapted to the shape of the barrel bottom, and the contact portion is adapted to the shape of the barrel wall, so as to facilitate the coordinated use of the adjustment component and the barrel wall and enhance the use effect.

[0057] The trash can of the present application cooperates with the bucket wall through the adjustment component, so that the bucket wall shrinks or expands under the action of the adjustment component to change the size of the bucket mouth, so that the same trash can can adapt to plastic bags of different sizes, thereby improving the user experience of the trash can.

[0058] In some embodiments, the adjustment component is disposed on the circumferential side of the barrel wall and moves along the axial direction of the barrel wall, and the barrel wall is contracted or expanded by the movement of the adjustment component. Specifically, in some embodiments, the barrel wall is in an outward expansion state under normal circumstances, that is, the barrel mouth size is larger than the barrel bottom size, and the adjustment component is detachably sleeved on the outer circumferential side of the barrel wall. When the adjustment component moves upward from the barrel bottom along the axial direction of the barrel wall, the barrel wall contracts under the action of the adjustment component. When the adjustment component moves downward from the barrel mouth toward the barrel bottom along the axial direction of the barrel wall, the barrel wall expands based on its own characteristics and stress until the adjustment component moves to a position of the barrel wall adjacent to the barrel bottom, and the barrel wall is reset to the outward expansion state. In other embodiments, the barrel wall is in a retracted state under normal circumstances, that is, the size of the barrel mouth is less than or equal to the size of the barrel bottom, and the adjustment component is detachably clamped on the inner circumference of the barrel wall. When the adjustment component moves downward from the barrel mouth toward the barrel bottom along the axial direction of the barrel wall, the barrel wall expands under the action of the adjustment component. When the adjustment component moves upward from the barrel bottom along the axial direction of the barrel wall, the barrel wall contracts based on its own characteristics and stress until the barrel wall is restored to the retracted state after the adjustment component is removed.

[0059] In other embodiments, the adjustment component is arranged on the circumference of the barrel wall, and the contraction or expansion of the barrel wall is achieved by adjusting the size of the adjustment component on the circumference of the barrel wall. In some embodiments, the barrel wall is in an outward expansion state under normal circumstances, that is, the barrel mouth size is larger than the barrel bottom size, the adjustment component is detachably sleeved on the outer circumference of the barrel wall, the size of the adjustment component on the circumference of the barrel wall is reduced by the adjustment member, the barrel wall shrinks under the action of the adjustment component, the size of the adjustment component on the circumference of the barrel wall is increased by the adjustment member, and the barrel wall expands based on its own characteristics and stress. In other embodiments, the barrel wall is in a retracted state under normal circumstances, that is, the barrel mouth size is less than or equal to the barrel bottom size, the adjustment component is detachably clamped on the inner circumference of the barrel wall, the size of the adjustment component on the circumference of the barrel wall is increased by the adjustment member, the barrel wall expands under the action of the adjustment component, the size of the adjustment component on the circumference of the barrel wall is reduced by the adjustment member, and the barrel wall shrinks based on its own characteristics and stress. Specifically, in some embodiments, the adjustment component is a hoop with an adjustment member, and the size of the hoop on the circumference of the barrel wall is changed by the adjustment member. For example, the adjustment assembly includes two butted semicircular chucks, each of which is provided with an ear hole at the end thereof, and a bolt thread passes through the ear hole to fix the two butted semicircular chucks in connection. During use, the size of the chuck in the circumferential direction of the barrel wall is adjusted by the bolt. Specifically, when the chuck is sleeved on the outer circumference of the barrel wall, the bolt is tightened to reduce the diameter size of the circle formed by the two chucks in the circumferential direction of the barrel wall to shrink the barrel wall; when the adjustment assembly is clamped on the inner circumferential side of the barrel wall, the bolt is loosened to increase the diameter size of the circle formed by the two chucks in the circumferential direction of the barrel wall to expand the barrel wall. It should be noted that the adjustment assembly can be arranged at different heights of the circumferential side of the barrel wall according to requirements, so as to achieve the purpose of expanding or shrinking the size of the barrel mouth to a suitable size. In other embodiments, the adjustment component is fixedly set on the barrel wall. For example, a through hole is provided on the barrel wall, and the adjustment component such as a rope passes through the through hole and is tightened to form a knot, and the size of the rope in the circumferential direction of the barrel wall is adjusted by the knot. Alternatively, the rope is connected with a buckle such as a spring buckle, and the size of the rope in the circumferential direction of the barrel wall is adjusted by the spring buckle to achieve the contraction of the barrel wall.

[0060] The trash can of the present application achieves the contraction or expansion of the barrel wall by adjusting the movement of the adjustment component on the circumferential side of the barrel wall or by adjusting the size of the adjustment component in the circumferential direction of the barrel wall, thereby achieving the purpose of adapting the same trash can to plastic bags of different sizes.

[0061] In actual applications, there is a possibility that the adjustment component may slide off the peripheral side of the barrel wall. For this reason, in some embodiments, the adjustment component includes an anti-skid member, which acts on the barrel wall to prevent the adjustment component from sliding off the outer peripheral side or the inner peripheral side of the barrel wall. Specifically, in some embodiments, the adjustment component is a hoop, and a convex point or a boss is provided on the side where the hoop contacts the barrel wall to play an anti-skid role. Among them, the number of convex points or bosses can be set according to requirements while considering anti-skid and not affecting the movement of the hoop. In other embodiments, anti-skid patterns are provided on the barrel wall, and the anti-skid patterns cooperate with the adjustment component to prevent the adjustment component from sliding off the outer peripheral side or the inner peripheral side of the barrel wall. It should be noted that the anti-skid member of the adjustment component or the anti-skid pattern of the barrel wall can be set according to requirements or both.

[0062] The trash can of the present application prevents the adjustment component from sliding off the circumference of the barrel wall by arranging anti-skid parts on the adjustment component and / or anti-skid patterns on the barrel wall, thereby enhancing the use effect of the trash can.

[0063] In practical applications, considering the contraction and expansion of the barrel wall during use, this application provides a barrel wall structure. Figure 1 , is a schematic diagram of the three-dimensional structure of the trash can body provided in the embodiment of the present application, such as Figure 1 As shown, the trash can includes a barrel body 1 for defining an inner cavity, the barrel body 1 includes a barrel bottom 11 and a barrel wall 12, the barrel wall 12 includes an outer edge 121 facing the outer side of the barrel wall, an inner edge 122 facing the inner side of the barrel wall, and blades 123 between adjacent outer edges and inner edges, which are formed by repeated bending. The outer edge 121 and the inner edge 122 are arranged vertically. In this embodiment, the barrel bottom 11 is circular, and the barrel body of the trash can is in an outward expansion state under normal conditions, that is, the outer edge 121, the inner edge 121 and the blade 123 surround to form a truncated cone with a large upper part and a small lower part. Under the action of external force squeezing, the outer edge and the inner edge are close to each other, and the spacing between adjacent blades is reduced, so that the barrel wall shrinks, thereby reducing the size of the barrel mouth; under the action of external force expansion, the outer edge and the inner edge are away from each other, and the spacing between adjacent blades is increased, so that the barrel wall expands, thereby increasing the size of the barrel mouth. As shown in the figure, the structure of the barrel wall bending is similar to the fan shape, so it is easy to shrink and expand. It should be noted that the present application takes a circular barrel bottom as an example. In other embodiments, the barrel bottom can also be set to other shapes such as an ellipse, a square, etc., and the barrel wall forms a corresponding column around the barrel bottom, which will not be repeated here. In addition, in actual applications, due to the inherent characteristics of polypropylene material, in one embodiment, the barrel wall is made of polypropylene material to reduce manufacturing costs and improve the use effect of the trash can.

[0064] In the case of adjusting the size of the trash can mouth by contracting and expanding the wall, the requirements for the contraction and expansion of the trash can include three situations: the trash can only contracts, only expands, and can both contract and expand under the action of external force. Among them, for the case where the trash can only contracts under the action of external force, the initial state of the trash can can be set to the maximum degree of expansion that can be achieved by bending under normal conditions; for the case where the trash can only expands under the action of external force, the initial state of the trash can can be set to the maximum degree of inward contraction that can be achieved by bending under normal conditions; for the case where the trash can can both contract and expand under the action of external force, the initial state of the trash can can be set to the intermediate state between the above-mentioned maximum degree of expansion and the maximum degree of inward contraction under normal conditions. Therefore, in actual applications, the number and degree of bending of the wall can be set according to the size of the trash can, the requirements for contraction and expansion of the trash can, etc., as long as it is ensured that the trash can can achieve the purpose of changing the size of the mouth after contraction and / or expansion.

[0065] The trash can of the present application forms a spatial structure by repeatedly bending the barrel wall. Under the action of external force, the outer edges and the inner edges are close to each other, and the distance between adjacent blades is reduced; under the action of external force expansion, the outer edges and the inner edges are away from each other, and the distance between adjacent blades is increased, thereby realizing the contraction and expansion of the barrel wall.

[0066] In practical applications, the barrel wall has a certain thickness. Considering the force exerted on the bending area of ​​the barrel wall during the contraction and expansion process, this application has made improvements in the thickness setting of the barrel wall. Please refer to Figure 2 ,for Figure 1 The partial enlarged view of the barrel wall at A in the barrel body shown in the figure is as follows: Figure 2 As shown, the blade 123 includes a first area 1231 close to the outer edge 121, a second area 1232 close to the inner edge 122, and a third area 1233 between the first area 1231 and the second area 1232, wherein the average thickness of the blade 123 in the first area 1231 and the average thickness of the blade 123 in the second area 1232 are both smaller than the average thickness of the blade 123 in the third area 1233. It should be noted that Figure 2 In the figure, the outer surface of the blade 123 shows the boundary between the second area 1232 and the third area 1233 by lines, and although the boundary between the first area 1231 and the third area 1233 is not shown by lines, the division between the first area 1231 and the third area 1233 is similar to the division between the second area 1232 and the third area 1233, as described later. Figure 3 As shown, the inner surface of the blade 123 extends toward the outer edge 121 until it intersects with the outer edge to form an area, and this area is the first area 1231 along the blade surface downward. Figure 3In FIG. 1 , a boundary line between the first region 1231 and the third region 1233 is shown by a line on the inner surface of the blade 123 .

[0067] Please refer to Figure 3 ,for Figure 1 The partial cross-sectional schematic diagram of the blades on the barrel body shown in the figure shows two blades adjacent to the outer edge 121 on both sides, namely blade 123 and blade 123'; and two inner edges adjacent to the outer edge 121, namely inner edge 122 and inner edge 122'. Figure 3 As shown, the blade 123' includes a first area 1231' near the outer edge 121, a second area 1232' near the inner edge 122', and a third area 1233' between the first area 1231' and the second area 1232', wherein the average thickness of the blade 123' in the first area 1231' and the average thickness of the blade 123' in the second area 1232' are both less than the average thickness of the blade 123' in the third area 1233'. In addition, the outer edge 121 and the inner edge 122 respectively include bending areas 124 and 124' with a certain thickness, and the bending areas include an inner surface on the inner side of the barrel wall and an outer surface on the outer side of the barrel wall.

[0068] In practical applications, the range of the first area 1231, the second area 1232 and the third area 1233 on the blade 123, and the thickness of the bending area can be set according to the requirements of barrel wall contraction and expansion, bending use requirements, etc., which will not be repeated below.

[0069] In one embodiment, if Figure 3 As shown, in the first area 1231 of the blade 123 near the outer edge 121, the surface of the blade 123 on the inner side of the barrel wall is called the inner surface of the blade 123, and the inner surface of the blade 123 extends toward the outer edge 121 so that the thickness of the blade 123 in the first area 1231 gradually decreases until it intersects with the inner surface of the outer edge bending area 124. In the first area 1231, the average thickness of the blade is d1; in the second area 1232 of the blade 123 near the inner edge 122, the average thickness of the blade 123 is d1. The surface on the outside of the barrel wall is called the outer surface of the blade 123. The outer surface of the blade 123 extends toward the inner edge 122 so that the thickness of the blade 123 in the second area 1232 gradually decreases until it intersects with the outer surface of the inner edge bending area 124'. In the second area 1232, the average thickness of the blade is d2; at the same time, the thickness of the blade 123 in the third area 1233 remains unchanged, and the average thickness is d3; in this embodiment, d3>d1, d3>d2, and d1=d2. In another embodiment, d1 and d2 may also be different.

[0070] Similarly, in the first area 1231' of the blade 123' near the outer edge 121, the surface of the blade 123' on the inner side of the barrel wall is called the inner surface of the blade 123', and the inner surface of the blade 123' extends toward the outer edge 121 so that the thickness of the blade 123' in the first area 1231' gradually decreases until it intersects with the inner surface of the outer edge bending area 124. In the first area 1231', the average thickness of the blade is d4; in the second area 1232' of the blade 123 near the inner edge 122', the average thickness of the blade 123 is d4. 3' The surface on the outside of the barrel wall is called the outer surface of the blade 123'. The outer surface of the blade 123' extends toward the inner edge 122' so that the thickness of the blade 123' in the second area 1232' gradually decreases until it intersects with the outer surface of the inner edge bending area 124'. In the second area 1232', the average thickness of the blade is d5; at the same time, the thickness of the blade 123' in the third area 1233' remains unchanged, and the average thickness is d6; in this embodiment, d6>d4, d6>d5, and d4=d5 are set. In another embodiment, d4 and d5 may also be different. In addition, d1, d2 and d4, d5 may be the same or different, and d3 and d6 may be the same or different. In this embodiment, d1=d2=d4=d5, d3=d6 are set, which is conducive to reducing the manufacturing cost of the trash can. In addition, the changes of adjacent blades on both sides of the inner edge are similar to the above, and will not be repeated here.

[0071] As described above, in one embodiment, anti-slip grooves are provided on the barrel wall to prevent the adjustment component from sliding off the barrel wall. Figure 1 When the barrel wall structure is described, Figure 3 As shown in the figure, around the outer edge 121, the bending area 124, the first area 1231 of the blade 123 close to the outer edge 121, and the first area 1231' of the blade 123' close to the outer edge 121 act as hinges when the barrel wall contracts and expands. In order to reduce the impact on the contraction and expansion of the barrel wall and increase the service life of the trash can, preferably, anti-slip grooves are set at other positions other than the above areas. The settings of other areas near the outer edges and inner edges on the barrel wall are similar to the above, and will not be repeated here.

[0072] The trash can of the present application improves the bending property of the barrel wall by setting a thickness change of the barrel wall, thereby increasing the service life of the trash can.

[0073] During the use of the trash can, the wall of the trash can includes the following three states: an initial state, a contracted state, and an expanded state, wherein the initial state refers to the state of the wall of the trash can under normal circumstances without the action of external forces, including the aforementioned maximum inward contraction state, maximum outward expansion state, and an intermediate state between the two. The contracted state refers to the state in which the outer peripheral side of the wall of the trash can contracts inward under the action of external forces to make the mouth of the trash can smaller, and the expanded state refers to the state in which the inner peripheral side of the wall of the trash can expands outward under the action of external forces to make the mouth of the trash can larger. In order to reduce manufacturing costs and facilitate the conversion of the trash can between various states during use, the bottom and wall of the trash can of the present application are arranged to be integrally formed, and the wall of the trash can includes a transition area, and the transition area is between the outer edge and the bottom of the trash can. Among them, the transition area refers to the area on the wall of the trash can used to provide stress to facilitate the resetting of the wall of the trash can. For example, the barrel wall above the transition area can be regarded as a curved surface, and the transition area can be regarded as a non-curved surface. In one embodiment, the transformation of the barrel wall of the curved surface to the transition area of ​​the non-curved surface is abrupt. When the barrel wall undergoes deformation of contraction and expansion, there is stress at its joint to resist such deformation. The transition area is used to provide such stress so that the barrel wall can be quickly reset after the external force is removed. In some embodiments, the transition area is a smooth surface. In other embodiments, the transition area may include some grooves or protruding bands set on the smooth surface to achieve a decorative effect. It should be noted that the transition area is used to provide stress to facilitate the resetting of the barrel wall, and its appearance shape is not limited.

[0074] However, the sudden change of the transition area from the curved surface of the barrel wall to the non-curved surface has the problem of stress concentration, which can easily cause the garbage can to crack. Therefore, in another embodiment, the transition area from the curved surface of the barrel wall to the non-curved surface is gradual. Based on this, the transition area includes a buffer area. Figure 1 In the case of the above structure, please refer to Figure 4 ,for Figure 1 A partial enlarged view of the barrel wall at position B in the barrel body, as shown in FIG. Figure 4As shown, one end of the outer edge 121 adjacent to the barrel bottom 11 extends toward the adjacent inner edges 122 and 122' on the left and right sides respectively and intersects with the adjacent inner edges 122 and 122', and the intersection point is a certain distance from the barrel bottom 11, and the intersection point is located on the transition area 13. Among them, the end of the outer edge 121 adjacent to the barrel bottom 11 is called the lower end of the outer edge 121. It can be seen from the figure that the end of the outer edge 121 adjacent to the barrel bottom 11 extends toward the adjacent inner edges 122 and 122' on the left and right sides respectively and intersects with the adjacent inner edges 122 and 122', and a buffer area 131 is formed from the point at the lower end of the outer edge 121 to the intersection point, in which the barrel wall of the curved surface gradually transforms into the transition area of ​​the non-curved surface. Here, the transition area and the bent barrel wall form an internal stress area, so that elasticity can be given to the deformation of the barrel wall, so that the barrel wall can be quickly reset. The existence of the buffer area, on the one hand, facilitates the one-piece molding of the trash can to reduce the manufacturing cost of the trash can, and on the other hand, alleviates the problem of easy cracking at the stress concentration point and increases the service life of the trash can.

[0075] On the barrel wall Figure 1 In the case of the above structure, in one embodiment, the adjustment component is an outer hoop 21 disposed on the outer peripheral side of the barrel wall to shrink the barrel wall when it moves upward from the bottom along the axial direction of the barrel wall. Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the three-dimensional structure of the adjustment assembly of the trash can provided in the embodiment of the present application. Figure 6 for Figure 5 The structure diagram of the clamping ring in the adjustment assembly in one embodiment is shown. Figure 5-6 As shown, in this embodiment, the adjustment component is an outer hoop 21, wherein the outer hoop 21 includes a plurality of U-shaped snap rings 211, and the snap ring 211 includes a first end 2111, a second end 2112, and a first middle portion 2113 between the first end 2111 and the second end 2112. During use, the outer hoop 21 is sleeved on the outer peripheral side of the barrel wall, specifically, the snap ring 211 is clamped on both sides of the outer edge 121 of the barrel wall, that is, the first middle portion 2113 of the snap ring 211 surrounds the outer edge 121, and the first end 2111 and the second end 2112 of the snap ring 211 act on the blades on both sides of the outer edge 121, and the inner side surfaces of the first end 2111 and the second end 2112 are in contact with two adjacent blades of the outer edge 121, respectively. Since the blades on the barrel wall 12 are inclined at a certain angle, the surface where the first end 2111 and / or the second end 2112 contacts the blades is set to be an inclined surface that matches the surface of the blades, so as to promote a close fit between the clamping ring and the barrel wall, which is helpful for adjusting the barrel wall contraction during movement. In addition, in actual applications, there is a possibility that the outer hoop may slip off the barrel wall. For this reason, in some embodiments, an anti-slip member 25 is also provided on the first middle portion 2113 of the outer hoop 21 to prevent the outer hoop from slipping off the barrel wall. Figure 5-7 As shown, Figure 7 for Figure 5 The schematic diagram of the structure of the clamp in the adjustment assembly shown in another embodiment, the first middle part 2113 of the outer hoop 21 is provided with an anti-slip member 25, and the anti-slip member 25 includes an elastic arm 251 with a U-shaped structure and a connecting portion 252 connected to the elastic arm 251 at a certain angle, and the connecting portion 252 is connected to the first middle part 2113. During use, the elastic arm of the U-shaped structure acts on the outer edge 121, further promoting the close fit between the clamp and the barrel wall to prevent the clamp from slipping. In some embodiments, the first middle part 2113 is also provided with a notch 253 with a U-shaped structure corresponding to the elastic arm 251, so as to facilitate demoulding during the manufacturing process and reduce manufacturing costs. It should be noted that the outer hoop shown in this embodiment is integrally formed, so there is no connecting piece between the single clamps. In other embodiments, the single clamps are connected by connecting pieces such as buckles to form an outer hoop.

[0076] It should be noted that the number of anti-slip parts can be set to one or more according to the requirements of the barrel wall. In practical applications, considering the fact that the outer hoop can move up and down along the barrel wall under the action of external force and the possibility of the outer hoop sliding down, anti-slip parts can be arranged at intervals on the clamp ring. In some embodiments, an anti-slip part can be arranged at intervals between two clamp rings to improve the use effect of the outer hoop. In addition, the outer hoop of the above structure can also be applied to the peripheral side of the barrel wall of other shapes, which will not be repeated here.

[0077] The following describes the working process of the outer hoop moving along the axial direction of the barrel wall to shrink the barrel wall in the case where the adjustment component is an outer hoop with reference to the accompanying drawings. Figure 8 and Fig. 9 , Figure 8 This is a schematic diagram of the three-dimensional structure of a trash can in a normal state provided in an embodiment of the present application; Fig. 9 for Figure 8 The three-dimensional structure diagram of the trash can shown in FIG. 1 is a schematic diagram of the trash can in a contracted state under the action of the adjustment component. In this embodiment, the initial state of the trash can wall, that is, the normal state, is the maximum outward expansion state as an example. Figure 8 As shown, the outer hoop 21 is placed below the barrel wall 12. At this time, the outer hoop 21 has no force on the barrel wall 12, and the barrel wall 21 is in a state of maximum outward expansion. When the barrel mouth needs to be narrowed, the outer hoop 21 is moved upward along the axial direction of the barrel wall, as shown in FIG. Fig. 9 As shown, the barrel wall 12 contracts under the action of the outer hoop 21 so that the barrel mouth is reduced, and the height position of the outer hoop 21 on the barrel wall side is appropriately adjusted according to the required barrel mouth size. Conversely, when the barrel mouth needs to be enlarged in this state, the outer hoop 21 is moved downward along the axial direction of the barrel wall, and the barrel wall is reset under the action of the stress provided by the transition area below it so that the barrel mouth is enlarged, and the height position of the outer hoop 21 on the barrel wall side is appropriately adjusted according to the required barrel mouth size.

[0078] On the barrel wall Figure 1 In the case of the above structure, in another embodiment, the adjustment component is an inner hoop 22 arranged on the inner circumference of the barrel wall to expand the barrel wall when it moves downward along the axial direction of the barrel wall toward the barrel bottom. Fig.10 and Fig.11 , Fig.10 Schematic diagram of the three-dimensional structure of the adjustment assembly of the trash can provided in one embodiment of the present application. Fig.11 for Fig.10 The protrusion in the adjustment assembly shown is a schematic diagram of the structure of an embodiment. Figure 10-11 As shown, in this embodiment, the adjustment component is an inner hoop 22, wherein the inner hoop 22 includes a hoop member 221 corresponding to the shape of the barrel bottom and a plurality of U-shaped protrusions 222 arranged on the hoop member 221, wherein the protrusion 222 includes a first arm 2221, a second arm 2222 and a second intermediate portion 2223 between the first arm 2221 and the second arm 2222. The shape of the hoop member 221 corresponds to the shape of the barrel bottom to facilitate the expansion of the barrel wall. In this embodiment, the barrel bottom shape is circular, and the hoop member 221 is circular. In other embodiments, if the barrel bottom shape is square, the hoop member is set to a square shape, and if the barrel bottom shape is elliptical, the hoop member is set to an elliptical shape, which will not be repeated here. In addition, in one embodiment, in order to reduce the weight of the inner hoop itself, the inner hoop is set to a hollow structure. During use, the inner hoop 22 is clamped on the inner circumference of the barrel wall. Specifically, the protrusion 222 on the hoop 221 is clamped on both sides of the outer edge 121, and the outer side surfaces of the first arm 2221 and the second arm 2222 are respectively in contact with two adjacent blades of the outer edge 121. Since the blades on the barrel wall 12 are at a certain inclination angle, the surface of the first arm 2221 and / or the second arm 2222 in contact with the blades is set as an inclined surface that matches the surface of the blade to promote the close fit of the protrusion with the barrel wall, which is beneficial to adjust the expansion of the barrel wall during movement. In addition, in actual applications, there is a possibility that the inner hoop may slip off the circumference of the barrel wall. For this reason, in one embodiment, the inner hoop 22 also includes an anti-slip member 25' to prevent the inner hoop from slipping off the circumference of the barrel wall. As shown in FIG. Fig.12 As shown, Fig.10The schematic diagram of the structure of the anti-skid member in the adjustment assembly in one embodiment is shown, the anti-skid member 25' is arranged on the hoop member 221, and the anti-skid member 25' comprises a clamping portion 254 in a U-shaped structure and two bosses 255 and 255' which are at a certain angle to the surface of the clamping portion 254 and extend to the outside of the surface, wherein the clamping portion 254 is connected to the hoop member 221. During use, the clamping portion 254 is clamped on both sides of the outer edge 121, and the bosses 255 and 255' of the anti-skid member 25' extend to the outside of the surface of the clamping portion 254, and the bosses 255 and 255' act on the blades of the barrel wall to further promote the close fit between the inner hoop and the barrel wall and prevent the inner hoop from slipping off. In addition, in the present embodiment, two anti-slip bosses, namely bosses 255 and 255', are provided on the upper surface of the clamping portion 254. In other embodiments, bosses may also be provided on the lower surface of the clamping portion 254, or bosses may be provided on both the upper surface and the lower surface of the clamping portion. The number of bosses may be set to one or more according to the requirements of the barrel wall. In practical applications, considering the two factors that the inner hoop can move up and down along the barrel wall under the action of external force, and the inner hoop may slip, anti-slip members may be provided at intervals on the hoop member. In some embodiments, anti-slip members may be provided at intervals of five protrusions on the hoop member to improve the use effect of the inner hoop. In addition, the inner hoop of the above structure may also be applied to the peripheral side of the barrel wall of other shapes, which will not be repeated here. It should be noted that the inner hoop shown in the present embodiment is integrally formed, so there is no connector between the hoop member, the protrusion and the anti-slip member. In other embodiments, the above components may be connected by a connector to form the inner hoop.

[0079] The following describes the working process of the inner hoop moving along the axial direction of the barrel wall to expand the barrel wall in the case where the adjustment component is an inner hoop with reference to the accompanying drawings. Fig.13 and Fig.14 , Fig.13 This is a schematic diagram of the three-dimensional structure of the trash can body provided in the embodiment of the present application in a normal state; Fig.14 for Fig.13 The three-dimensional structure diagram of the trash can shown in FIG. 1 is in an expanded state under the action of the adjustment component. In this embodiment, the initial state of the trash can wall, that is, the normal state, is the retracted state as an example. Fig.13 As shown, the barrel wall 12 is in a retracted state, and the inner hoop 22 is not initially applied to the barrel wall. When the barrel mouth needs to be enlarged, the inner hoop 22 is placed in the barrel mouth and moved downward along the axial direction of the barrel wall, as shown in FIG. Fig.14 As shown, the barrel wall 12 expands under the action of the inner hoop 22 so that the barrel mouth becomes larger, and the height position of the inner hoop 22 on the barrel wall side is appropriately adjusted according to the required barrel mouth size. Conversely, when the barrel mouth needs to be reduced in this state, the inner hoop 22 is moved upward along the axial direction of the barrel wall, and the barrel wall is reset under the action of the stress provided by the transition area below it so that the barrel mouth is reduced, and the height position of the inner hoop 22 on the barrel wall side is appropriately adjusted according to the required barrel mouth size.

[0080] In addition, when the initial state of the trash can is an intermediate state between the above-mentioned maximum outward expansion state and the maximum inward contraction state, the adjustment component may include an outer hoop and an inner hoop, and one of them can be selected according to needs.

[0081] It should be noted that the above-mentioned U-shaped structure snap ring, U-shaped elastic arm, U-shaped notch and U-shaped protrusion are only examples and may also be presented as V-shaped structure, trapezoidal structure or other similar structures according to actual conditions, which will not be elaborated here.

[0082] On the barrel wall Figure 1 In the case of the above structure, if the adjustment component is a rope, please refer to Fig.15 , is a schematic diagram of the three-dimensional structure of the barrel body of the trash can provided in the embodiment of the present application. As shown in the figure, a plurality of through holes 14 are provided on the barrel wall, and the rope passes through the through holes 14 and forms a knot by tying it tightly. This method is used to adjust the size of the rope in the circumferential direction of the barrel wall to achieve the contraction of the barrel wall. In this case, the trash can can be used as a vase. In one embodiment, through holes are provided at different positions of the barrel wall according to the shape requirements of the vase, and vases of different shapes are constructed by tying the rope tightly.

[0083] In addition, as described above, in some embodiments, the adjustment component is a hoop with an adjustment member, and the size of the hoop in the circumferential direction of the barrel wall is changed by the adjustment member. Figure 16-17 , Fig.16 Schematic diagram of the three-dimensional structure of the adjustment assembly of the trash can provided in one embodiment of the present application. Fig.17 for Fig.16 The adjustment component is shown in the enlarged partial view at C. In this embodiment, the adjustment component is a hoop 23, wherein the hoop 23 includes four arc-shaped inner tubes 231 and four adjusting members 232. Both ends of each inner tube 231 are provided with a protrusion 2311. A spring 2321 is sandwiched between each inner tube 231, so that the four inner tubes form a circle corresponding to the shape of the barrel bottom. Fig.17As shown, the adjusting member 232 includes a spring 2321 sandwiched between the inner tubes 231 and an outer tube 2322 sleeved on a portion of the inner tube, wherein the outer tube 2322 includes a knob 2324 clamped on the outer tube, a slide groove 2323 arranged on both sides of the knob, and a connecting line 2325 wound around the knob 2324 and two inner tube protrusions 2311. During use, when the hoop is sleeved on the outer circumference of the barrel wall, the knob 2324 is rotated to move the connecting line 2325 wound thereon, driving the protrusion 2311 to slide in the slide groove 2323 to compress the spring 2321, thereby reducing the diameter size of the hoop 23 in the circumferential direction of the barrel wall to shrink the barrel wall. Conversely, when the hoop is sleeved on the inner circumference of the barrel wall, the knob is rotated in the opposite direction to increase the circumferential size of the hoop on the barrel wall to expand the barrel wall. It should be noted that the number of inner tubes and adjusting members in the present embodiment is merely an example. In other embodiments, the hoop may include an inner tube and a corresponding adjusting member, or two or more inner tubes, which will not be described in detail herein.

[0084] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A trash can, comprising a barrel body for defining an inner cavity, wherein the barrel body comprises a barrel bottom and a barrel wall, characterized in that: The barrel wall can shrink or expand along its circumference. The trash can also includes an adjustment component, which is arranged on the circumference of the barrel wall so that the barrel wall can shrink or expand under the action of the adjustment component.

2. The trash can according to claim 1, characterized in that: The barrel wall comprises an outer edge facing the outer side of the barrel wall, an inner edge facing the inner side of the barrel wall, and blades between adjacent outer edges and inner edges, wherein the outer edges and the inner edges are arranged vertically.

3. The trash can according to claim 2, characterized in that: The blade includes a first region near the outer edge, a second region near the inner edge, and a third region between the first region and the second region, wherein the average thickness of the blade in the first region and the second region are both smaller than the average thickness of the blade in the third region.

4. The trash can according to claim 2, characterized in that: The barrel bottom and the barrel wall are integrally formed, and the barrel wall comprises a transition area between the outer edge and the barrel bottom.

5. The trash can according to any one of claims 2 to 4, characterized in that: One end of the outer edge adjacent to the barrel bottom extends toward the adjacent inner edges on the left and right sides and intersects with the adjacent inner edges, and the intersection point is a certain distance away from the barrel bottom.

6. The trash can according to claim 5, characterized in that: When the barrel wall includes a transition area, the intersection point is on the transition area.

7. The trash can according to any one of claims 1 to 4 or 6, characterized in that: The adjustment assembly includes an outer hoop and / or an inner hoop, wherein the outer hoop is arranged on the outer peripheral side of the barrel wall to cause the barrel wall to contract when the outer hoop moves upward from the bottom along the axial direction of the barrel wall, and the inner hoop is arranged on the inner peripheral side of the barrel wall to cause the barrel wall to expand when the inner hoop moves downward toward the barrel bottom along the axial direction of the barrel wall.

8. The trash can according to claim 7, characterized in that: The outer hoop and / or the inner hoop include anti-slip parts, which act on the barrel wall to prevent the adjustment assembly from sliding off the outer peripheral side or the inner peripheral side of the barrel wall.

9. The trash can according to claim 7, characterized in that: The outer hoop comprises a clamping ring in a U-shaped structure, wherein the clamping ring comprises a first end, a second end and a first middle portion between the first end and the second end.

10. The trash can according to claim 9, characterized in that: The barrel wall includes an outer edge facing the outside of the barrel wall formed by repeated bending and two blades adjacent to the outer edge. The inner side surfaces of the first end and the second end are respectively in contact with the two adjacent blades of the outer edge. The surface where the first end and / or the second end contacts the blades is a slope that matches the surface of the blade.

11. The trash can according to any one of claims 8 to 10, characterized in that: The outer hoop comprises a clamping ring with a U-shaped structure, and the clamping ring comprises a first middle portion. When the outer hoop comprises an anti-slip member, the anti-slip member is arranged on the first middle portion.

12. The trash can according to claim 11, characterized in that: The anti-slip member includes an elastic arm in a U-shaped structure and a connecting portion connected to the elastic arm at a certain angle, and the connecting portion is connected to the first middle portion.

13. The trash can according to claim 12, characterized in that: The first middle portion is provided with a notch in a U-shaped structure corresponding to the elastic arm.

14. The trash can according to claim 11, characterized in that: There are at least two anti-slip parts.

15. The trash can according to any one of claims 12 to 14, characterized in that: In the case where there are a plurality of anti-slip parts, the anti-slip parts are arranged at intervals on the clamping ring.

16. The trash can according to claim 7, characterized in that: The inner hoop includes a hoop member corresponding to the shape of the barrel bottom and a U-shaped protrusion arranged on the hoop member, wherein the protrusion includes a first arm, a second arm and a second middle portion between the first arm and the second arm.

17. The trash can according to claim 16, characterized in that: The barrel wall includes an outer edge formed by repeated bending toward the outside of the barrel wall and two blades adjacent to the outer edge. The outer side surfaces of the first arm and the second arm are respectively in contact with two adjacent blades of the outer edge. The surface where the first arm and / or the second arm contacts the blades is a slope that matches the surface of the blade.

18. The trash can according to any one of claims 8 or 16-17, characterized in that: The inner hoop includes a hoop member. When the inner hoop includes an anti-slip member, the anti-slip member is arranged on the hoop member. The anti-slip member includes a clamping portion with a U-shaped structure and a boss that forms a certain angle with the surface of the clamping portion and extends to the outside of the surface. The clamping portion is connected to the hoop member.

19. The trash can according to claim 18, characterized in that: There are at least two anti-slip parts.

20. The trash can according to any one of claims 8 or 16-17 or 19, characterized in that: The inner hoop comprises an anti-slip member and a hoop member. When there are a plurality of anti-slip members, the anti-slip members are arranged at intervals on the hoop member.

21. The trash can according to any one of claims 1 to 4 or 6, characterized in that: The adjustment component comprises an adjustment member, and the adjustment member is used to adjust the size of the adjustment component in the circumferential direction of the barrel wall so that the barrel wall can be contracted or expanded under the action of the adjustment component.

22. The trash can according to claim 21, characterized in that: A through hole is provided on the barrel wall, the adjustment component is a rope, and the adjusting member is a knot or a buckle. After the rope passes through the through hole, the size of the rope in the circumferential direction of the barrel wall is adjusted via the knot or the buckle so that the barrel wall contracts under the action of the rope.

23. The trash can according to any one of claims 1-4 or 6, characterized in that: The barrel wall is provided with anti-skid patterns, and the anti-skid patterns cooperate with the adjustment component to prevent the adjustment component from sliding off the outer circumference or the inner circumference of the barrel wall.

24. The trash can according to any one of claims 1-4 or 6, characterized in that: The barrel wall is made of polypropylene.

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