Multi-layer structure and multi-layer garbage can

Abstract

The multi-layer structure comprises an upper can body and a lower can body, one of the upper can body and the lower can body can be contained in the other one, the upper can body is provided with a first bottom edge, the lower can body is provided with a first top edge, the multi-layer structure further comprises a connecting piece, and the connecting piece is connected with the upper can body and the lower can body. The connecting piece comprises a lap joint part in lap joint with the first top edge, a supporting part supporting the first bottom edge and a connecting part connecting the lap joint part and the supporting part. According to the multi-layer structure and the multi-layer garbage can, the structure can be simplified, the production and manufacturing cost can be reduced, and operation and implementation are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of container structures, and in particular to a multi-layer structure and a multi-layer trash can. Background Art

[0002] There are many telescopic trash can solutions in the prior art. The telescopic trash can includes an upper barrel and a lower barrel, one of the upper barrel and the lower barrel can be stored in the other, the bottom of the upper barrel is open, the upper barrel is mounted on the top of the lower barrel, the bottom edge of the upper barrel and the top edge of the lower barrel are staggered, and the interior of the upper barrel and the interior of the lower barrel form a receiving cavity for placing garbage.

[0003] To meet the needs of use, in the patent document with publication number CN114955303A and patent name "A Retractable Trash Can", screws are set on the upper barrel body and a rack is set on the lower barrel body. The screws are stuck in different positions of the rack, so that the overall height of the trash can can be adjusted while remaining relatively stable.

[0004] However, the above solution has a complex structure, high production cost, inconvenient operation and is difficult to implement. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a multi-layer structure that can simplify the structure, reduce production costs, and facilitate operation and implementation.

[0006] The present invention also provides a multi-layer trash can having the multi-layer structure.

[0007] According to the multi-layer structure of the first aspect of the present invention, the embodiment includes an upper barrel body and a lower barrel body, one of the upper barrel body and the lower barrel body can be stored in the other, the upper barrel body has a first bottom edge, and the lower barrel body has a first top edge. The multi-layer structure also includes a connecting member, and the connecting member includes a overlapping portion overlapping the first top edge, a supporting portion supporting the first bottom edge, and a connecting portion connecting the overlapping portion and the supporting portion.

[0008] The multi-layer structure according to the embodiment of the present invention has at least the following beneficial effects: The present invention provides an upper barrel body and a lower barrel body so that the upper barrel body and the lower barrel body can be nested inside and outside. Therefore, one of the upper barrel body and the lower barrel body can be placed inside the other, which reduces occupied space and facilitates packaging and transportation.

[0009] The present invention provides a connecting piece with a lap portion, a supporting portion and a connecting portion. Therefore, when the upper barrel body is placed on the lower barrel body, the lower barrel body can position and support the upper barrel body through the connecting piece, so that the internal space of the upper barrel body and the internal space of the lower barrel body can both be used for storage, for example, forming a trash can with higher specifications and larger capacity.

[0010] The present invention can also simplify the connection structure and drive structure between the upper barrel body and the lower barrel body by providing a connecting piece, thereby achieving the purpose of simplifying the structure, reducing costs, and facilitating operation and implementation.

[0011] In the present invention, the upper barrel and the lower barrel refer to the relative positions of the two barrels when in use. In practice, the multi-layer structure may be two, three or more layers.

[0012] The present invention also provides a multi-layer trash can having the above beneficial effects.

[0013] According to the multilayer structure of the first embodiment of the present invention, at least one of the overlapping portion and the supporting portion includes an abutting surface abutting up and down, and a side positioning surface connected to the abutting surface; And / or, the first bottom edge and the first top edge are staggered up and down, and the first bottom edge is located on the outside of the first top edge.

[0014] According to the multi-layer structure of the first embodiment of the present invention, the connecting member is fixed to the upper barrel, the connecting portion has a clamping protrusion, the first bottom edge has a first side edge, and the first side edge is clamped between the clamping protrusion and the supporting portion; Alternatively, the connecting member is fixed to the lower barrel, the connecting portion has a clamping protrusion, the first push rod has a second side edge, and the second side edge is clamped between the clamping protrusion and the overlapping portion.

[0015] According to the multi-layer structure of the first embodiment of the present invention, the connecting member is fixed to the upper barrel, and the multi-layer structure further includes a limiting member, which is detachably provided on the connecting member or the upper barrel, the limiting member having a first limiting portion, the overlapping portion and the first limiting portion forming a first side limiting space, the first top edge having a second side edge, the second side edge being capable of being located in the first side limiting space, and the second side edge and the first side limiting space cooperate to form upper and lower limits; Or, the connecting member is fixed to the lower barrel body, and the multi-layer structure also includes a limiting member, which is detachably arranged on the connecting member or the lower barrel body, and the limiting member has a second limiting portion, and the supporting portion and the second limiting portion form a second side limiting space, and the first bottom edge has a first side edge, and the first side edge can be located in the second side limiting space, and the first side edge and the second side limiting space cooperate with the upper and lower limits.

[0016] According to the multi-layer structure of the first aspect of the present invention, the limiting member is detachably connected to the connecting member, the connecting member has a positioning protrusion, the limiting member is provided with a positioning hole for accommodating the positioning protrusion and a locking screw connecting the positioning protrusion, and the limiting member is fixed to the connecting member by the locking screw.

[0017] According to the multi-layer structure of the first aspect of the present invention, the upper barrel body is provided with a barrel cover, and the multi-layer structure also includes a cover opening mechanism, the cover opening mechanism includes an upper cover opening assembly and a lower cover opening assembly, the lower cover opening assembly is arranged on the lower barrel body, the upper cover opening assembly is movably arranged on the top of the lower cover opening assembly, and the lower cover opening assembly is transmitted by the upper cover opening assembly to open and close the barrel cover.

[0018] According to the multi-layer structure of the first aspect of the present invention, the lower opening cover assembly includes a lower box body and a lower push rod movably arranged on the lower box body; the upper opening cover assembly includes an upper box body and an upper push rod slidably arranged on the upper box body; the lower push rod lifts the upper push rod to open the cover.

[0019] According to the multi-layer structure of the first embodiment of the present invention, one of the upper box body and the lower box body is provided with a tapered positioning portion, and the other of the upper box body and the lower box body is provided with a V-shaped positioning groove for accommodating the tapered positioning portion, and the tapered positioning portion and the V-shaped positioning groove cooperate with each other to position the upper box body relative to the lower box body; And / or, one of the upper box body and the lower box body is provided with a positioning plug plate, and the other of the upper box body and the lower box body cooperates with the barrel wall of the barrel body to form a positioning slot, and the positioning plug plate is inserted into the positioning slot to position the upper box body relative to the lower box body.

[0020] According to the multi-layer structure of the first embodiment of the present invention, the upper barrel is provided with a barrel cover, and the upper barrel has a quick-release lock connected to the barrel cover; And / or, the barrel cover includes a frame and a cover covering the frame, the frame is connected to the upper barrel, the frame is provided with a transmission block that slides up and down, the transmission block is provided with a connecting rod connected to the cover, and the transmission block is raised and lowered to drive the cover to rotate for opening and closing.

[0021] A multi-layer trash can according to an embodiment of the second aspect of the present invention includes any of the multi-layer structures described above.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of a multi-layer trash can in use according to an embodiment of the present invention; Figure 2 for Figure 1 A cutaway diagram of a multi-layer trash can; Figure 3 for Figure 2 A magnified view of the multi-layer trash can; Figure 4 for Figure 3 A three-dimensional schematic diagram of an enlarged image; Figure 5 for Figure 1 A schematic diagram of the structure of a multi-layer trash can in storage status; Figure 6 for Figure 5 A cutaway diagram of a multi-layer trash can; Figure 7 for Figure 5 Schematic diagram of the assembly of the lid and upper barrel of a multi-layer trash can; Figure 8 for Figure 1 A schematic diagram of the structure of the lid opening mechanism of a multi-layer trash can; Figure 9 for Figure 8 Assembly diagram of the opening mechanism.

[0025] Reference numerals: upper barrel 100; lower barrel 110; first bottom edge 120; first top edge 130; connecting member 140; overlapping portion 150; supporting portion 160; connecting portion 170; abutting surface 180; side positioning surface 190; engaging protrusion 200; first side edge 210; second side edge 220; limiting member 230; first limiting portion 240; positioning protrusion 250; barrel cover 260; cover opening mechanism 270; upper cover opening assembly 280; lower cover opening assembly 290; upper box body 300; upper ejector rod 310; Upper slider 311; upper vertical rod 312; lower box body 320; lower push rod 330; bent section 331; semicircular hole 332; semicircular cover 333; conical positioning portion 340; V-shaped positioning groove 350; positioning plug plate 360; fixing block 361; quick-release lock buckle 370; lock body 371; hinge rod 372; lock seat 373; lock edge 374; frame 380; limit block 381; cover body 390; transmission block 400; connecting rod 410; footrest bracket 420; rotating shaft 430; foot pedal 440; bevel 450. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 a limitation on the present invention.

[0028] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. If a first or second is mentioned, this is only used to distinguish technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted, connected, and connected" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] The multi-layer structure and the multi-layer trash can according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0031] Reference Figures 1 to 9 The present invention aims to provide an embodiment of a multi-layer trash can. This embodiment is illustrated with a two-layer structure. The number of layers of the multi-layer trash can in this embodiment can be three or more layers.

[0032] in, Figure 1 is a schematic diagram of the use status of the trash can of this embodiment, and Figure 5 Schematic diagram of the structure of the trash can in the storage state of this embodiment.

[0033] In this embodiment, the multi-layer trash can includes an upper barrel and a lower barrel 110. The upper barrel and the lower barrel 110 are concepts of the relative positions of the two barrels when in use. The upper barrel and the lower barrel 110 refer to two adjacent layers, not specifically the topmost and the bottommost layers.

[0034] In some embodiments, the lower barrel 110 can be accommodated in the upper barrel, that is, the diameter of the upper barrel is larger, while the diameter of the lower barrel 110 is smaller.

[0035] Therefore, when in use, the internal space of the multi-layer trash can becomes smaller from top to bottom, which is convenient for throwing in trash and taking out trash bags.

[0036] At the same time, since the bottom of the upper barrel is in an open state, the bottom edge of the upper barrel can be lowered to the ground, which is conducive to reducing the overall height of the multi-layer trash can in the storage state, reducing the occupied space, and facilitating storage and transportation.

[0037] In some embodiments, the upper barrel body can be stored in the lower barrel body 110 to meet different usage requirements.

[0038] That is, one of the upper barrel body and the lower barrel body 110 can be accommodated in the other, which is beneficial to reducing the occupied space and facilitating packaging and transportation.

[0039] In some embodiments, the upper barrel body and the lower barrel body 110 can be formed by an injection molding process so that the bottom diameter of the upper barrel body is close to the top diameter of the lower barrel body 110, or the bottom diameter of the upper barrel body is smaller than the top diameter of the lower barrel body 110, so that the bottom of the upper barrel body intersects with the top of the lower barrel body 110, reducing the horizontal gap between the bottom of the upper barrel body and the top of the lower barrel body 110, making it convenient to connect the upper barrel body and the lower barrel body 110 together to meet usage needs.

[0040] In some embodiments, the upper barrel body and the lower barrel body 110 can be formed by bending metal plates to reduce weight, and have high strength and are not easily damaged.

[0041] Reference Figure 2 、 Figure 3 and Figure 4 In order to simplify the structure of the multi-layer trash can, this embodiment also provides an embodiment of a multi-layer structure. The multi-layer structure includes a connecting member 140. The connecting member 140 enables the upper barrel body to be stably seated on the lower barrel body 110 to meet usage needs.

[0042] Specifically, the connecting member 140 includes a overlapping portion 150 overlapping the first top edge 130, a supporting portion 160 supporting the first bottom edge 120, and a connecting portion 170 connecting the overlapping portion 150 and the supporting portion 160, wherein the upper barrel body has a first bottom edge 120 and the lower barrel body 110 has a first top edge 130.

[0043] In summary, the present invention provides a connecting piece 140 so that the connecting piece 140 has a lap portion 150, a support portion 160 and a connecting portion 170. Therefore, when the upper barrel body is placed on the lower barrel body 110, the lower barrel body 110 can be positioned and supported by the connecting piece 140, so that the internal space of the upper barrel body and the internal space of the lower barrel body 110 can both be used for storage, for example, forming a trash can with higher specifications and larger capacity.

[0044] The present invention can also simplify the connection structure and drive structure between the upper barrel body and the lower barrel body 110 by providing the connecting piece 140, thereby achieving the purpose of simplifying the structure, reducing costs, and facilitating operation and implementation.

[0045] At the same time, in the case where both the upper barrel body and the lower barrel body 110 are formed by bending metal plates, since there is a large gap in the horizontal direction between the bottom of the upper barrel body and the top of the lower barrel body 110, a connecting piece 140 is provided to fill the gap and meet the usage needs of specific application scenarios.

[0046] In some embodiments, at least one of the overlapping portion 150 and the supporting portion 160 may include an abutting surface 180 abutting against each other up and down, and a side positioning surface 190 connecting the abutting surface 180 .

[0047] In this embodiment, the overlapping portion 150 and the supporting portion 160 are both provided with abutment surfaces 180 and side positioning surfaces 190 , which also enable the connecting member 140 to horizontally position the upper barrel body and the lower barrel body 110 to prevent the upper barrel body from moving relative to the lower barrel body 110 .

[0048] In some embodiments, the first bottom edge 120 and the first top edge 130 can be staggered up and down so that the upper barrel body is not prone to tipping over.

[0049] In some embodiments, the first bottom edge 120 can be located outside the first top edge 130, which not only meets the requirement of storing the lower barrel body 110 in the upper barrel body, but also avoids occupying the internal space of the lower barrel body 110 and does not affect the effective volume of the multi-layer trash can.

[0050] In some embodiments, the connecting member 140 can be fixed to the upper barrel body or to the lower barrel body 110. That is, the connecting member 140 is first fixed to one of the upper barrel body and the lower barrel body 110 during production. When in use, only the upper barrel body and the lower barrel body 110 need to be assembled, thereby reducing the assembly of the connecting member 140.

[0051] In this embodiment, a situation in which the connecting member 140 is fixed to the upper barrel body is shown. In some embodiments, the connecting portion 170 can have a snap-fitting protrusion 200, and the first bottom edge 120 can have a first side edge 210. The first side edge 210 is snap-fitted between the snap-fitting protrusion 200 and the support portion 160. That is, the upper barrel body is pressed downward so that the first bottom edge 120 of the upper barrel body presses the snap-fitting protrusion 200, causing the snap-fitting protrusion 200 to avoid or the first bottom edge 120 to avoid. Then, the first side edge 210 of the first bottom edge 120 will be snapped between the snap-fitting protrusion 200 and the support portion 160, so that the connecting member 140 is fixed to the upper barrel body.

[0052] In some embodiments, there may be a plurality of snap-fit protrusions 200 , which are arranged around the connector 140 to achieve multi-point fixation.

[0053] In some embodiments, the first side edge 210 can be a straight edge or a round edge bent from a metal plate, which is easy to manufacture.

[0054] In some embodiments, the multi-layer structure may further include a limit member 230, which is detachably disposed on the connecting member 140 or the upper barrel body. In this embodiment, the limit member 230 is connected to the connecting member 140 to overcome the problem that the upper barrel body is a thin metal plate and the bottom edge is difficult to install.

[0055] In this embodiment, the limiting member 230 has a first limiting portion 240, the overlapping portion 150 and the first limiting portion 240 form a first side limiting space, the first top edge 130 has a second side edge 220, the second side edge 220 can be located in the first side limiting space, and the second side edge 220 and the first side limiting space cooperate with the upper and lower limits.

[0056] It is easy to understand that this embodiment provides a limiting member 230 so that the overlapping portion 150 and the first limiting portion 240 clamp the second side 220 up and down, so that the upper barrel body and the lower barrel body 110 in use are connected together, and the trash can can be transported as a whole for easy use.

[0057] In terms of assembly method, the upper barrel body can be placed on the lower barrel body 110 and then the limit member 230 can be installed, or the limit member 230 can be installed on the connecting member 140 and then the upper barrel body can be placed on the lower barrel body 110, and by pressing, the second side edge 220 can pass by the first limit portion 240 and be stuck in the first side limit space, completing the connection between the upper barrel body and the lower barrel body 110.

[0058] In some embodiments, the limit member 230 can be detachably connected to the connector 140. The connector 140 has a positioning protrusion 250. The limit member 230 is provided with a positioning hole for accommodating the positioning protrusion 250 and a locking screw connecting the positioning protrusion 250. The limit member 230 is fixed to the connector 140 by the locking screw.

[0059] In some embodiments, the positioning protrusion 250 can be a boss with a hole.

[0060] In some embodiments, the positioning protrusion 250 may be tubular.

[0061] That is, the external thread of the locking screw will be threaded on the self-tapping portion of the inner surface of the positioning protrusion 250 to complete the connection and fixation.

[0062] At the same time, the outer surface of the positioning protrusion 250 can match with the limiting member 230 to complete the positioning. At the same time, the positioning protrusion 250 can accommodate the threaded rod of the locking screw without affecting the setting of the overlapping part 150 and the supporting part 160.

[0063] In this embodiment, the positioning protrusion 250 is located on the side of the support portion 160 facing away from the first bottom edge 120 , that is, the positioning protrusion 250 is located at the bottom of the support portion 160 and does not affect the internal structure of the upper barrel.

[0064] In some embodiments, ribs may be arranged on the outer surface of the positioning protrusion 250 to improve the strength of the positioning protrusion 250 .

[0065] In the case where the connecting member 140 is fixed to the lower barrel body 110 , similarly, the connecting portion 170 has a clamping protrusion 200 , and the first push rod has a second side edge 220 , which is clamped between the clamping protrusion 200 and the overlapping portion 150 .

[0066] Similarly, the multi-layer structure also includes a limiting member 230, which is detachably arranged on the connecting member 140 or the lower barrel body 110. The limiting member 230 has a second limiting portion, and the support portion 160 and the second limiting portion form a second side limiting space. The first bottom edge 120 has a first side edge 210, and the first side edge 210 can be located in the second side limiting space. The first side edge 210 and the second side limiting space cooperate with the upper and lower limits.

[0067] The situation in which the connecting member 140 is fixed to the lower barrel 110 is not shown in the figure in this embodiment, and it can be understood by the situation in which the connecting member 140 is fixed to the upper barrel, which is not difficult.

[0068] In some embodiments, the number of the limiting members 230 can be two, distributed on two opposite sides of the upper barrel, to reduce manufacturing costs and reduce resistance to press assembly.

[0069] Reference Figure 1 、 Figure 5 and Figure 6 In some embodiments, the upper barrel body may be provided with a barrel cover 260, which may cover the upper barrel body, so that the multi-layer trash can is closed, reducing interference from mosquitoes and flies and odor.

[0070] In some embodiments, the upper barrel body may be provided with a quick-release lock 370 connected to the barrel cover 260. The quick-release lock 370 can meet the need for quick disassembly and assembly of the barrel cover 260 to facilitate replacement of the garbage bag.

[0071] Reference Figure 6 and Figure 7 The quick-release lock 370 includes a lock body 371, a hinge rod 372 hinged to the lock body 371, and a lock seat 373, and the barrel cover 260 is provided with a lock edge 374. When in use, the lock body 371 hooks the lock edge 374, and then the lock body 371 is pressed so that the connection center between the lock body 371 and the hinge rod 372 is offset from one side of the control line to the other side of the control line. The control line is a straight line with two control points, one control point is the connection center between the hinge rod 372 and the lock seat 373, and the other control point is the contact position between the lock body 371 and the lock edge 374.

[0072] When the connection center between the lock body 371 and the hinge rod 372 is offset from one side of the control line to the other side of the control line, the hinge rod 372 will maintain the state of the lock body 371. If there is no external force to pry the lock buckle, the quick-release lock buckle 370 will not open. When the barrel cover 260 needs to be removed, the lock buckle is pried upward to make the connection center between the lock buckle and the hinge rod 372 return from the other side of the control line, and the quick-release lock buckle 370 can be opened.

[0073] In some embodiments, there may be two quick-release locks 370 located on both sides of the upper barrel in the longitudinal direction to improve fixing reliability.

[0074] In the case where there is only one quick-release lock 370 , the barrel cover 260 can be connected to the barrel body by rotation or other means, and the barrel cover 260 can also be fixed.

[0075] In some embodiments, the barrel cover 260 can be opened by pressing it manually. The barrel cover 260 is provided with a button, which is inserted into the cover body 390 of the barrel cover 260 under the action of a spring. The button is pressed by hand to move the button away from the cover body 390, making it convenient for the cover body 390 to be flipped upward and opened.

[0076] In order to meet the need of stepping on the lid to open it, and also to prevent people from touching the lid 260 of the trash can when throwing away garbage, refer to Figure 8 and Figure 9 The present invention also provides an embodiment of a cover opening mechanism 270.

[0077] In this embodiment, the cover opening mechanism 270 includes an upper cover opening assembly 280 and a lower cover opening assembly 290. The lower cover opening assembly 290 is arranged on the lower barrel body 110, and the upper cover opening assembly 280 is movably arranged on the top of the lower cover opening assembly 290. The lower cover opening assembly 290 is driven by the upper cover opening assembly 280 to open and close the barrel cover 260.

[0078] The upper cover assembly 280 is movably arranged on the top of the lower cover assembly 290, which means that when the multi-layer trash can is in use, the upper cover assembly 280 is located on the top of the lower cover assembly 290, and when the multi-layer trash can is in the storage state, the upper cover assembly 280 can be moved away from the top of the lower cover assembly 290 by various means such as rotation, translation, extension, and removal, thereby reducing the occupied space and facilitating storage.

[0079] It is easy to understand that in this embodiment, the upper cover assembly 280 is provided so that the upper cover assembly 280 is movably provided on the top of the lower cover assembly 290. Therefore, when it needs to be stored or transported, the upper cover assembly 280 can change its posture or position, such as reaching out or moving out, occupying less space on the top of the lower cover assembly 290, making it convenient to store.

[0080] When the trash can needs to be used, the upper opening cover assembly 280 is placed on the top of the lower opening cover assembly 290. The lower opening cover assembly 290 can transmit the opening power to the bucket cover 260 through the upper opening cover assembly 280, meeting the opening need and facilitating use. In this embodiment, a situation is shown in which the upper cover assembly 280 can be removed to simplify the connection structure and facilitate operation and implementation.

[0081] As for the lower cover assembly 290 , the lower cover assembly 290 includes a lower box body 320 and a lower push rod 330 movably disposed on the lower box body 320 .

[0082] In some embodiments, the bottom end of the lower push rod 330 can have a bent section 331, and the pedal bracket 420 can have a semicircular hole 332 and a semicircular cover 333 that closes the semicircular hole 332. The semicircular cover 333 is fixed to the pedal bracket 420 by screws, and the semicircular hole 332 and the semicircular cover 333 cooperate to form a circular hole that accommodates the rotation of the bent section 331. The semicircular hole 332 and the semicircular cover 333 are shaped like an axial section along the circular hole, which can convert the up and down swinging of the pedal bracket 420 into the lifting and lowering of the lower push rod 330 to meet the need of opening the cover.

[0083] In some embodiments, the top of the lower cover body 390 can have a sliding hole that cooperates with the lower ejector rod 330 to limit the position of the top end of the upper ejector rod 310, making it easier for the lower cover assembly 290 to drive the upper cover assembly 280.

[0084] In some embodiments, the upper opening cover assembly 280 may include an upper box body 300, an upper push rod 310 slidably disposed on the upper box body 300, and a lower push rod 330 that lifts the upper push rod 310 to open the cover.

[0085] Since the upper ejector rod 310 is slidably disposed on the upper box body 300 , the upper ejector rod 310 can transmit the lifting motion of the lower ejector rod 330 upward to meet the need of opening the cover.

[0086] In some embodiments, the number of upper cover assemblies 280 can be determined according to the number of upper barrel bodies to accommodate the situation where the trash can is multi-layered.

[0087] In some embodiments, one of the upper box body 300 and the lower box body 320 can be provided with a conical positioning portion 340, and the other of the upper box body 300 and the lower box body 320 can be provided with a V-shaped positioning groove 350 for accommodating the conical positioning portion 340. The conical positioning portion 340 and the V-shaped positioning groove 350 cooperate with each other up and down to position the upper box body 300 relative to the lower box body 320.

[0088] In this embodiment, the upper box body 300 is provided with a V-shaped positioning groove 350 and the lower box body 320 is provided with a tapered positioning portion 340 for example.

[0089] It is easy to understand that this embodiment facilitates the alignment of the upper cover assembly 280 and the lower cover assembly 290 by providing the V-shaped positioning groove 350 and the conical positioning portion 340, which not only meets the transmission requirements of the lower push rod 330 and the upper push rod 310, but also simplifies installation.

[0090] In some embodiments, one of the upper box body 300 and the lower box body 320 can be provided with a positioning plug 360, and the other of the upper box body 300 and the lower box body 320 cooperates with the barrel wall of the barrel body to form a positioning slot, and the positioning plug 360 is inserted into the positioning slot to position the upper box body 300 relative to the lower box body 320.

[0091] The other one of the upper box body 300 and the lower box body 320 cooperates with the barrel wall of the barrel body in which it is located to form a positioning slot, which means that the positioning slot can be formed by the box body itself or formed by the box body and the barrel body. The box body and the barrel body cooperate to form a positioning slot, which can simplify the box body structure and reduce the occupied space.

[0092] The V-shaped positioning groove 350 and the conical positioning portion 340, the positioning plug plate 360 and the positioning slot can cooperate in pairs to produce two horizontal limits, and the two horizontal directions are preferably perpendicular to each other, so that the upper cover assembly 280 is accurately located on the lower cover assembly 290.

[0093] In some embodiments, the upper push rod 310 may include an upper vertical rod 312 and an upper slider 311 disposed at the bottom end of the upper vertical rod 312 . The upper slider 311 slides along the upper box body 300 and is used to abut against the lower push rod 330 .

[0094] It is easy to understand that in this embodiment, by providing the upper slider 311, the bottom end of the upper vertical rod 312 can be limited to cooperate with the upper box body 300 to limit the top end of the upper vertical rod 312, so that the upper vertical rod 312 can be lifted vertically and the transmission is accurate.

[0095] At the same time, the upper slider 311 is used to contact the lower ejector rod 330 , which can increase the contact area and reduce the alignment requirements of the upper ejector rod 310 and the lower ejector rod 330 .

[0096] In some specific embodiments of the present invention, at least one of the upper cover assembly 280 and the lower cover assembly 290 can be telescopically adjusted up and down, and the overall length of the upper cover assembly 280 and the lower cover assembly 290 can be changed to compensate for manufacturing and assembly errors, ensuring that the cover opening angle meets the requirements and the cover opening angle is consistent.

[0097] For example, the above-mentioned cover opening assembly 280 can be telescopically adjusted up and down. In some specific embodiments of the present invention, the upper push rod 310 can be telescopically adjusted.

[0098] Specifically, in some specific embodiments of the present invention, the upper vertical rod 312 can be adjusted up and down relative to the upper slider 311. For example, by adjusting the thread rotation, the overall length of the upper push rod 310 can be changed to compensate for manufacturing and assembly errors, ensuring that the opening angle meets the requirements and the opening angle is consistent.

[0099] Specifically, in some specific embodiments of the present invention, the top of the upper vertical rod 312 can be threadedly connected with a screw sleeve, which is used to push the transmission block 400 and rotate the screw sleeve to adjust the total length of the upper vertical rod 312 and the screw sleeve to meet adjustment needs.

[0100] In some specific embodiments of the present invention, the transmission block 400 may have a sleeve body, and the sleeve body contains a threaded sleeve to position the threaded sleeve and facilitate transmission.

[0101] For the solution of the lower opening cover assembly 290 being able to be telescopically adjusted up and down, it can be implemented with reference to the upper opening cover assembly 280.

[0102] For a multi-layer trash can that is opened by pedaling, the lid 260 includes a frame 380 and a cover 390 that covers the frame 380. The cover 390 and the frame 380 can be referred to Figure 1 and Figure 5 , Figure 8 and Figure 9 Only parts of the cover 390 and the frame 380 are shown.

[0103] The frame 380 is connected to the barrel body, and the frame 380 is provided with a transmission block 400 that slides up and down. The transmission block 400 is provided with a connecting rod 410 connected to the cover body 390. The transmission block 400 rises and falls to drive the cover body 390 to rotate to open and close.

[0104] The upper push rod 310 can lift the transmission block 400 to open the cover, and when the lower push rod 330 descends, the gravity of the cover body 390 and the transmission block 400 can make the cover body 390 close again.

[0105] Furthermore, the connecting rod 410 is provided to convert the linear motion of the transmission block 400 into the rotational motion of the cover 390, thereby avoiding motion interference.

[0106] In some embodiments, the frame 380 may be provided with a limit block 381 , which can abut against the transmission block 400 to limit the highest point of the transmission block 400 and prevent the transmission block 400 from falling out.

[0107] In some embodiments, the connecting rod 410 can be curved to accommodate the space on the frame 380 for accommodating the transmission member, which helps to make the structure compact and reduce the occupied space, especially avoiding affecting the size of the barrel opening of the multi-layer trash can.

[0108] In some embodiments, the upper barrel body may be provided with fixing screws connected to the upper box body 300 and mounting holes for accommodating the fixing screws.

[0109] In some embodiments, a fixing block 361 may be provided outside the upper barrel body, and the fixing screws may pass through the fixing block 361 and the mounting hole to connect the upper box body 300 to prevent the upper barrel body from being deformed or damaged due to excessive local pressure.

[0110] In some embodiments, the cover opening mechanism 270 can include a foot pedal bracket 420, a rotating shaft 430 is set in the middle of the foot pedal bracket 420, and both ends of the foot pedal bracket 420 swing up and down around the rotating shaft 430. One end of the foot pedal bracket 420 is used to drive the lower push rod 330 to rise, and a detachable foot pedal 440 is set at the other end of the foot pedal bracket 420.

[0111] It is easy to understand that in this embodiment, by providing the rotating shaft 430 , when the foot pedal 440 is stepped on, both ends of the footrest bracket 420 will rotate around the rotating shaft 430 to meet the need of the lower push rod 330 to rise.

[0112] The foot pedal 440 is detachable, which can reduce the outer contour of the upper and lower barrel bodies 110 in the storage state, which is beneficial to lowering the height position of the upper barrel body, further reducing the occupied space, and facilitating storage.

[0113] In some embodiments, the footrest bracket 420 may have two rotating shafts 430 , which are arranged opposite to each other and horizontally to improve rotation stability.

[0114] In some embodiments, the upper end of the rotating shaft 430 can be provided with an oblique angle 450, and correspondingly, the bottom of the lower barrel body 110 or the multi-layer trash can is also provided with a relative oblique angle 450, so that the rotating shaft 430 can be more easily inserted into the lower barrel body 110 or the bottom of the multi-layer trash can, thereby facilitating assembly.

[0115] In some embodiments, the footrest bracket 420 may have a slot for connecting to the foot pedal 440 , and the foot pedal 440 may be inserted into the slot in a horizontal direction, thereby completing the assembly and meeting the requirements of upper and lower forces.

[0116] Throughout this specification, references to terms such as "one embodiment, some embodiments, exemplary embodiments, examples, specific examples, or some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0117] The terms "first, second, third, fourth," etc., as used in the specification and claims of this application and in the accompanying drawings, where applicable, are used to distinguish similar items and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments described herein can be practiced in an order other than that shown or described herein.

[0118] It should also be noted that in the description of this specification, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0119] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may also include other steps or elements not explicitly listed or inherent to such process, method, product or apparatus.

[0120] Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0121] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A multi-layer structure, characterized in that The invention comprises an upper barrel body and a lower barrel body (110), wherein one of the upper barrel body and the lower barrel body (110) can be accommodated in the other, the upper barrel body has a first bottom edge (120), and the lower barrel body (110) has a first top edge (130). The multi-layer structure further comprises a connecting member (140), wherein the connecting member (140) comprises an overlapping portion (150) overlapping the first top edge (130), a supporting portion (160) supporting the first bottom edge (120), and a connecting portion (170) connecting the overlapping portion (150) and the supporting portion (160).

2. The multilayer structure according to claim 1, wherein: At least one of the overlapping portion (150) and the supporting portion (160) includes an abutting surface (180) abutting against each other up and down, and a side positioning surface (190) connected to the abutting surface (180); And / or, the first bottom edge (120) and the first top edge (130) are staggered up and down, and the first bottom edge (120) is located outside the first top edge (130).

3. The multilayer structure according to claim 1, wherein: The connecting member (140) is fixed to the upper barrel body, the connecting portion (170) has a clamping protrusion (200), the first bottom edge (120) has a first side edge (210), and the first side edge (210) is clamped between the clamping protrusion (200) and the supporting portion (160); Alternatively, the connecting member (140) is fixed to the lower barrel (110), the connecting portion (170) has a clamping protrusion (200), the first push rod has a second side edge (220), and the second side edge (220) is clamped between the clamping protrusion (200) and the overlapping portion (150).

4. The multilayer structure according to claim 1, wherein: The connecting member (140) is fixed to the upper barrel body, and the multi-layer structure further includes a limiting member (230), the limiting member (230) is detachably arranged on the connecting member (140) or the upper barrel body, the limiting member (230) has a first limiting portion (240), the overlapping portion (150) and the first limiting portion (240) form a first side limiting space, the first top edge (130) has a second side edge (220), the second side edge (220) can be located in the first side limiting space, and the second side edge (220) and the first side limiting space cooperate with each other for upper and lower limiting; Alternatively, the connecting member (140) is fixed to the lower barrel body (110), and the multi-layer structure further includes a limiting member (230), which is detachably arranged on the connecting member (140) or the lower barrel body (110), and the limiting member (230) has a second limiting portion, and the supporting portion (160) and the second limiting portion form a second side limiting space, and the first bottom edge (120) has a first side edge (210), and the first side edge (210) can be located in the second side limiting space, and the first side edge (210) and the second side limiting space cooperate with each other for upper and lower limiting.

5. The multilayer structure according to claim 4, characterized in that: The limiting member (230) is detachably connected to the connecting member (140), the connecting member (140) has a positioning protrusion (250), the limiting member (230) is provided with a positioning hole for accommodating the positioning protrusion (250) and a locking screw connected to the positioning protrusion (250), and the limiting member (230) is fixed to the connecting member (140) by the locking screw.

6. The multi-layer structure according to claim 1, wherein: The upper barrel body is provided with a barrel cover (260), and the multi-layer structure further includes a cover opening mechanism (270), the cover opening mechanism (270) includes an upper cover opening component (280) and a lower cover opening component (290), the lower cover opening component (290) is provided on the lower barrel body (110), the upper cover opening component (280) is movably provided on the top of the lower cover opening component (290), and the lower cover opening component (290) is driven by the upper cover opening component (280) to open and close the barrel cover (260).

7. The multilayer structure according to claim 6, characterized in that: The lower cover opening assembly (290) includes a lower box body (320) and a lower push rod (330) movably arranged on the lower box body (320); the upper cover opening assembly (280) includes an upper box body (300) and an upper push rod (310) slidably arranged on the upper box body (300); the lower push rod (330) lifts the upper push rod (310) to open the cover.

8. The multi-layer structure according to claim 7, characterized in that: One of the upper box body (300) and the lower box body (320) is provided with a conical positioning portion (340), and the other of the upper box body (300) and the lower box body (320) is provided with a V-shaped positioning groove (350) for accommodating the conical positioning portion (340), and the conical positioning portion (340) and the V-shaped positioning groove (350) cooperate with each other in vertical arrangement to position the upper box body (300) relative to the lower box body (320); And / or, one of the upper box body (300) and the lower box body (320) is provided with a positioning plug plate (360), and the other of the upper box body (300) and the lower box body (320) cooperates with the barrel wall of the barrel body to form a positioning slot, and the positioning plug plate (360) is inserted into the positioning slot to locate the position of the upper box body (300) relative to the lower box body (320).

9. The multi-layer structure according to claim 1, wherein: The upper barrel body is provided with a barrel cover (260), and the upper barrel body has a quick-install lock (370) connected to the barrel cover (260); And / or, the barrel cover (260) includes a frame (380), a cover (390) covering the frame (380), the frame (380) is connected to the upper barrel, the frame (380) is provided with a transmission block (400) that slides up and down, the transmission block (400) is provided with a connecting rod (410) connected to the cover (390), and the transmission block (400) is raised and lowered to drive the cover (390) to rotate for opening and closing.

10. Multi-layer trash can, characterized by: A multilayer structure comprising the multilayer structure according to any one of claims 1 to 9.

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