Top cover turning mechanism of automatic packaging garbage can

Abstract

The utility model discloses a top cover turning mechanism of an automatic packaging garbage can, which relates to the technical field of garbage can structures and comprises a can body, a can head and a top cover which are sequentially connected from bottom to top. A cavity is formed in the can head, and the top cover overturning mechanism is installed in the cavity. The top cover overturning mechanism comprises a driving unit, a transmission gear and at least one transmission force arm; the output end of the driving unit is in transmission connection with the transmission gear; the transmission force arm is of an arc-shaped structure and comprises a bent arc part; a convex tooth part is arranged on the inner side surface of the bent arc part of the transmission force arm, and comprises a plurality of uniformly distributed and convex teeth; an opening is formed in the upper side surface of the barrel head close to the edge; the other end of the transmission force arm penetrates through the opening and is fixedly connected with the lower side surface of the top cover; the convex tooth part faces the lower side surface of the top cover; and the transmission gear is meshed and matched with the convex tooth part. Compared with the prior art, the top cover overturning mechanism has the advantages that the gear and the teeth are not exposed, and the top cover overturning mechanism is more attractive and not prone to abrasion.

Description

Technical Field

[0001] The utility model relates to the technical field of trash can structures, and particularly relates to a flip-top cover mechanism for an automatic packing trash can. Background Technique

[0002] Trash cans are essential tools in family life and important assistants for keeping the family environment clean and maintaining family hygiene. For traditional lidless open trash cans, there is a problem of easy odor emission. For traditional lidded trash cans, people are reluctant to open the dirty trash can lids by hand, or there is a problem of inconvenient manual lid opening. For this reason, many manufacturers have provided trash cans with intelligent lid opening to meet various needs of users.

[0003] For example, the patent document with the publication number CN200946029Y provides an induction automatic flip-top trash can, which includes an upper barrel body, a lower barrel body, a barrel lid, an induction window, and a driving device. The driving device includes a power mechanism and a transmission mechanism. The structural requirements are as follows: the induction window and the driving device are both installed in the upper barrel body, the barrel lid is hinged to the upper barrel body, the transmission mechanism is a link mechanism, one end of the link mechanism is connected to the power mechanism, and the other end is hinged to the barrel lid. A reduction gear set is also provided between the power mechanism and the transmission mechanism; it has the characteristics of simple structure, convenient use, and cleanliness and hygiene. However, in this solution, there is a big problem that the reduction gear set arranged between the barrel lid and the barrel body is not hidden. When the trash can is opened, users can easily see the teeth of the exposed gears from the front, which is very unsightly; especially for an automatic packing trash can, when in use, disposable garbage bags are usually equipped, and the exposed gears are also very easy to damage the garbage bags, making it impossible to normally collect the garbage bags, and then it is difficult for users to take away and discard the garbage bags; these exposed gears are also more likely to cause wear and tear, and then generate relatively large noise. Many existing intelligent flip-top trash cans have the same problems as above. Summary of the Invention

[0004] Aiming at the problems in the related technologies, the utility model provides a flip-top cover mechanism for an automatic packing trash can, which solves the problems of the exposed transmission gears and teeth being unsightly and easy to wear.

[0005] The utility model is realized as follows:

[0006] A flip-top cover mechanism for an automatic packing trash can, the trash can includes a barrel body, a barrel head, and a top cover connected in sequence from bottom to top; the flip-top cover mechanism is arranged on the barrel head, and the barrel head is in transmission connection with the top cover through the flip-top cover mechanism;

[0007] The flip-top cover mechanism includes a drive unit, a transmission gear, and at least one transmission power arm; the output end of the drive unit is in transmission connection with the transmission gear; the transmission power arm is of an arc-shaped structure and includes a bent arc portion; the inner side surface of the bent arc portion of the transmission power arm is provided with a convex tooth portion, and the convex tooth portion includes a plurality of uniformly distributed and protruding teeth;

[0008] An opening is provided on the upper side surface of the barrel head near the edge; one end of the transmission power arm is hinged to the barrel head, and the other end passes through the opening and is fixedly connected to the lower side surface of the top cover; the convex tooth portion faces the lower side surface of the top cover; the transmission gear is in meshing cooperation with the convex tooth portion.

[0009] The drive unit is used to drive the top cover to open or close;

[0010] When opening the top cover, the drive unit drives the transmission power arm to rotate through the transmission gear until the top cover is turned over. At this time, in the flip-top cover mechanism, only the transmission power arm will extend outwards along the opening and be exposed;

[0011] Taking the direction in which the top cover is turned over as the backward direction, after turning over, the user cannot see the teeth on the transmission power arm from the front side or the front, nor can they see the transmission gear and other gears hidden inside the barrel head; thus, structures such as gears and teeth cannot damage the garbage bags subsequently installed in the trash can.

[0012] As a further optimization of the above solution, the transmission power arm includes an inner arc surface, an outer arc surface, and a plurality of reinforcing ribs; both ends of the reinforcing ribs are respectively connected to the inner arc surface and the outer arc surface; a hollow groove is formed between the inner arc surface, the outer arc surface, and two adjacent reinforcing ribs.

[0013] Setting the reinforcing ribs and the hollow groove can not only ensure the structural strength of the transmission power arm, but also reduce the weight and material cost.

[0014] As a further optimization of the above solution, in the transmission power arm, a protruding limit baffle is provided along the same side of the plurality of teeth; the limit baffle is perpendicular to the inner side surface.

[0015] During assembly, the transmission gear extends into the central cavity area of the bent arc portion from the side without the limit baffle and meshes with the convex tooth portion; the end of the transmission gear extends at most until it abuts against the inner side surface of the limit baffle.

[0016] As a further optimization of the above scheme, the transmission arm also includes a vertical portion, one end of the vertical portion is connected to one end of the curved portion, wherein the angle formed by the tangent direction of the curved portion at the connection with the vertical portion is a right angle or an acute angle; the other end of the vertical portion is a first connecting end, which is hinged to the barrel head; the other end of the curved portion is a second connecting end, which is fixedly connected to the top cover, and the second connecting end is perpendicular to the lower side of the top cover.

[0017] As a further optimization of the above scheme, a convex portion is provided on the lower side of the top cover, and a connecting groove is provided on the side of the convex portion; a groove is provided on the second connecting end, and a connecting hole is provided on the side of the groove; the convex portion and the groove are adapted to each other; and a connecting strip is also included, which passes through the connecting hole and the connecting groove to fix the top cover and the transmission arm in connection.

[0018] As a further optimization of the above solution, the lower side of the top cover is provided with a vertically raised limiting convex strip on the periphery of the convex portion; after the transmission force arm is connected to the top cover, the limiting convex strip is adapted to the outer peripheral side of the second connecting end.

[0019] As a further optimization of the above solution, the connection groove is provided with an internal thread, and the connection strip is provided with an external thread; the internal thread and the external thread are adapted to each other. That is, the connection strip is a screw. The connection strip can also be a latch.

[0020] As a further optimization of the above solution, a first shaft rod and a second shaft rod are fixedly provided inside the barrel head; the first shaft rod laterally penetrates into the first connecting end of the transmission force arm and is hinged to the transmission force arm; the second shaft rod passes through the transmission gear and is hinged to the transmission gear; the curved portion surrounds the outer circumference of the second shaft rod.

[0021] The transmission arm rotates only around the first shaft, and the transmission gear rotates only around the second shaft.

[0022] As a further optimization of the above scheme, it also includes a reduction box; the reduction box is provided with a plurality of mutually meshing reduction gears; the driving unit is a motor, and a power gear is provided at the output end of the motor; the power gear is transmission-connected to one of the reduction gears; and the transmission gear is transmission-connected to another reduction gear.

[0023] The reduction gearbox and reduction gear can reduce the speed when the power gear is transmitted to the transmission gear, and increase the torque. The reduction gear is made of metal or plastic.

[0024] As a further optimization of the above solution, the plurality of reduction gears are distributed in a triangular shape.

[0025] The triangular-like layout can make the connection of multiple reduction gears more compact and reduce the volume of the reduction gearbox.

[0026] The beneficial effects are as follows:

[0027] The present utility model provides a flip-top cover mechanism for an automatic packing trash can. While setting a gear transmission structure, a novel arc-shaped force arm is provided, and a convex tooth part in transmission connection with the transmission gear is arranged on the inner side of the transmission force arm, and the convex tooth part faces the top cover. When in use, the transmission force arm can rotate 90 degrees around the rotating shaft under the transmission of the driving unit to complete the opening and closing actions of the top cover. When observing from the front of the trash can, an external observer cannot see any exposed gear or tooth structure, and the only visible part is the outer side of the streamline-shaped arc part of the transmission force arm. Compared with the transmission structure of the existing trash can, the flip-top cover mechanism provided by the present utility model has better aesthetics and durability while maintaining high transmission performance. The hidden tooth structure reduces the chance of direct contact with the external environment, thereby reducing wear and also reducing the wear on the garbage bag, and prolonging the service life of the product. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the overall structure of the trash can provided by the embodiment of the present utility model;

[0029] Figure 2 It is a schematic side sectional view of the barrel head and the top cover provided by the embodiment of the present utility model;

[0030] Figure 3 For this Figure 2 Partial enlarged schematic view at a;

[0031] Figure 4 It is a schematic diagram of the structure of the transmission force arm provided by the embodiment of the present utility model;

[0032] Figure 5 For Figure 2 Partial sectional enlarged schematic view at another section;

[0033] Figure 6 It is a partial enlarged schematic view of the top cover provided by the embodiment of the present utility model.

[0034] Reference Signs:

[0035] 1. Barrel body;

[0036] 2. Barrel head; 2-1. First shaft rod; 2-2. Second shaft rod; 2-3. Opening;

[0037] 3. Top cover; 3-1. Convex part; 3-2. Connection groove; 3-3. Limit convex strip;

[0038] 4. Driving unit;

[0039] 5. Transmission gear;

[0040] 6. Speed ​​reducer; 6-1. Speed ​​reduction gear;

[0041] 7. Transmission arm; 7-1. Curved part; 7-2. Vertical part; 7-3. First connection end; 7-4. Second connection end; 7-5. Groove; 7-6. Connection hole; 7-7. Inner arc surface; 7-8. Outer arc surface; 7-9. Reinforcement rib; 7-10. Hollow groove; 7-11. Protruding tooth part; 7-12. Limit baffle;

[0042] 8. Connecting strip. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0044] like Figures 1 to 6 As shown, the present embodiment provides a flip-top cover mechanism for an automatic packing trash can, the trash can comprising a barrel body 1, a barrel head 2 and a top cover 3 connected in sequence from bottom to top; the barrel head 2 has a cavity inside, and the flip-top cover mechanism is installed in the cavity; in the present embodiment, a first shaft rod 2-1 and a second shaft rod 2-2 are also fixedly provided in the barrel head 2; in the present embodiment, with the direction in which the trash can opening 2-3 faces the user as the front, the first shaft rod 2-1 and the second shaft rod 2-2 are both located at the rear edge of the barrel head 2, and the first shaft rod 2-1 and the second shaft rod 2-2 are both parallel to the left and right directions;

[0045] An opening 2-3 is provided on the upper side of the barrel head 2 near the rear edge.

[0046] The top cover 3 is hinged to the barrel head 2 through a flip cover mechanism. In this embodiment, the flip cover mechanism includes a driving unit 4, a transmission gear 5, a reduction box 6 and two force arms, one of which is a transmission force arm 7 and the other is a driven force arm;

[0047] In this embodiment, a plurality of mutually meshing reduction gears 6-1 are provided in the reduction box 6, and the plurality of reduction gears 6-1 are distributed in a triangular shape; the driving unit 4 is a motor, and a power gear is provided at the output end of the motor; the power gear is transmission-connected to a reduction gear 6-1, and the transmission gear 5 is transmission-connected to another reduction gear 6-1, thereby realizing a transmission connection between the driving unit 4 and the transmission gear 5.

[0048] The second shaft rod 2-2 passes through the transmission gear 5 and is hinged to the transmission gear 5. The transmission gear 5 only rotates around the second shaft rod 2-2.

[0049] The reduction gearbox 6 and the reduction gear 6-1 can reduce the speed when the power gear is transmitted to the transmission gear 5 and increase the torque. The reduction gear 6-1 is made of metal or plastic. The triangular-like layout can make the connection of multiple reduction gears 6-1 more compact and reduce the volume of the reduction gearbox 6.

[0050] The transmission power arm 7 is of an arc-shaped structure, including a bent arc portion 7-1 and a vertical portion 7-2. One end of the vertical portion 7-2 is connected to one end of the bent arc portion 7-1. Among them, the included angle formed by the tangent direction of the bent arc portion 7-1 at the connection and the vertical portion 7-2 is an acute angle; the other end of the vertical portion 7-2 is the first connection end 7-3, and the other end of the bent arc portion 7-1 is the second connection end 7-4; among them, the second connection end 7-4 is provided with a groove 7-5, and a connection hole 7-6 is provided on the side surface of the groove 7-5;

[0051] In this embodiment, the transmission power arm 7 includes an inner arc surface 7-7, an outer arc surface 7-8 and a plurality of reinforcing ribs 7-9; both ends of the reinforcing rib 7-9 are respectively connected to the inner arc surface 7-7 and the outer arc surface 7-8; a hollow groove 7-10 is formed between the inner arc surface 7-7, the outer arc surface 7-8 and two adjacent reinforcing ribs 7-9.

[0052] The arrangement of the reinforcing rib 7-9 and the hollow groove 7-10 can not only ensure the structural strength of the transmission power arm 7, but also reduce the weight and material cost.

[0053] The inner side surface of the bent arc portion 7-1 of the transmission power arm 7 is provided with a convex tooth portion 7-11, and the convex tooth portion 7-11 includes a plurality of uniformly distributed and protruding teeth; in this embodiment, in the transmission power arm 7, a protruding limit baffle 7-12 is provided along the same side of the plurality of teeth; the limit baffle 7-12 is perpendicular to the inner side surface.

[0054] One end of the transmission power arm 7 is hinged to the bucket head 2, and the other end passes through the opening 2-3 and is fixedly connected to the lower side surface of the top cover 3.

[0055] Specifically, the first shaft rod 2-1 laterally penetrates into the first connection end 7-3 of the transmission power arm 7 to hinge the bucket head 2 and the transmission power arm 7; the bent arc portion 7-1 surrounds the outer periphery of the second shaft rod 2-2. The transmission power arm 7 only rotates around the first shaft rod 2-1. At this time, the convex tooth portion 7-11 faces the lower side surface of the top cover 3.

[0056] The transmission gear 5 is meshed and matched with the convex tooth portion 7-11. During specific assembly, the transmission gear 5 extends into the central cavity area of the bent arc portion 7-1 from the side without the limit baffle 7-12 and is meshed with the convex tooth portion 7-11; the end of the transmission gear 5 extends at most to abut against the inner side surface of the limit baffle 7-12.

[0057] The second connection end 7-4 is fixedly connected to the top cover 3, and the second connection end 7-4 is perpendicular to the lower side surface of the top cover 3. In this embodiment, the lower side surface of the top cover 3 is provided with a convex portion 3-1, and the side surface of the convex portion 3-1 is provided with a connection groove 3-2; the lower side surface of the top cover 3 is provided with a limit rib 3-3 that protrudes vertically on the outer periphery of the convex portion 3-1; the convex portion 3-1 and the groove 7-5 are mutually adapted; further included is a connection bar 8, the connection groove 3-2 is provided with internal threads, and the connection bar 8 is provided with external threads; the connection bar 8 passes through the connection hole 7-6 and the connection groove 3-2, and the internal threads and the external threads are mutually adapted, so that the top cover 3 and the power transmission arm 7 are fixedly connected. After the power transmission arm 7 is connected to the top cover 3, the limit rib 3-3 is adapted to the outer peripheral side of the second connection end 7-4.

[0058] The driving unit 4 is used to drive the top cover 3 to open or close;

[0059] When opening the top cover 3, the driving unit 4 drives the power transmission arm 7 and the rotation of other arms through the transmission gear 5 until the top cover 3 is turned over. At this time, in the top cover turning mechanism, only the arms will extend outwards along the opening 2-3 and be exposed;

[0060] Taking the direction in which the top cover 3 is turned over as the backward direction, after turning over, the user cannot see the teeth on the power transmission arm 7 from the front side or the front, nor can they see the transmission gear 5 and other gears hidden inside the barrel head 2; thus, structures such as gears and teeth cannot damage the garbage bags subsequently installed in the trash can.

[0061] According to the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A flip-top cover mechanism for an automatic packaging trash can, the trash can comprising a body, a head and a top cover connected in sequence from bottom to top; characterized in that: The flip-top cover mechanism is arranged on the barrel head, and the barrel head is drivingly connected with the top cover through the flip-top cover mechanism; The flip cover mechanism comprises a driving unit, a transmission gear and at least one transmission arm; the output end of the driving unit is in transmission connection with the transmission gear; the transmission arm is an arc-shaped structure, including a curved arc portion; a convex tooth portion is provided on the inner side surface of the curved arc portion of the transmission arm, and the convex tooth portion comprises a plurality of evenly distributed and raised teeth; An opening is provided on the upper side of the barrel head near the edge; one end of the transmission arm is hinged to the barrel head, and the other end passes through the opening and is fixedly connected to the lower side of the top cover; the convex tooth portion faces the lower side of the top cover; and the transmission gear is meshed with the convex tooth portion.

2. The flip-top cover mechanism of the automatic packaging trash can according to claim 1, characterized in that: The transmission force arm comprises an inner arc surface, an outer arc surface and a plurality of reinforcing ribs; two ends of the reinforcing ribs are respectively connected to the inner arc surface and the outer arc surface; a hollow groove is formed between the inner arc surface, the outer arc surface and two adjacent reinforcing ribs.

3. The flip-top cover mechanism of the automatic packaging trash can according to claim 1, characterized in that: In the transmission force arm, a raised limit baffle is provided along the same side of a plurality of teeth; the limit baffle is perpendicular to the inner side surface.

4. The flip-top cover mechanism of the automatic packaging trash can according to claim 1, characterized in that: The transmission arm also includes a vertical portion, one end of which is connected to one end of the curved portion, wherein an angle formed by a tangent direction of the curved portion at the connection with the vertical portion is a right angle or an acute angle; the other end of the vertical portion is a first connecting end, which is hinged to the barrel head; the other end of the curved portion is a second connecting end, which is fixedly connected to the top cover, and the second connecting end is perpendicular to the lower side of the top cover.

5. The flip-top cover mechanism of the automatic packaging trash can according to claim 4, characterized in that: A convex portion is provided on the lower side of the top cover, and a connecting groove is provided on the side of the convex portion; a groove is provided on the second connecting end, and a connecting hole is provided on the side of the groove; the convex portion and the groove are adapted to each other; and a connecting strip is also included, which passes through the connecting hole and the connecting groove to fix the top cover and the transmission arm in connection.

6. The flip-top cover mechanism of the automatic packaging trash can according to claim 5, characterized in that: The lower side surface of the top cover is provided with a vertically protruding limiting convex strip on the periphery of the convex portion; after the transmission force arm is connected to the top cover, the limiting convex strip is matched with the outer peripheral side of the second connecting end.

7. The flip-top cover mechanism of the automatic packaging trash can according to claim 5, characterized in that: The connecting groove is provided with an internal thread, and the connecting strip is provided with an external thread; the internal thread and the external thread are adapted to each other.

8. The flip-top cover mechanism of the automatic packaging trash can according to claim 4, characterized in that: A first shaft and a second shaft are fixedly provided in the barrel head; the first shaft laterally penetrates into the first connecting end of the transmission arm and is hinged to the transmission arm; the second shaft passes through the transmission gear and is hinged to the transmission gear; the curved portion surrounds the outer circumference of the second shaft.

9. The flip-top cover mechanism of the automatic packaging trash can according to claim 1, characterized in that: It also includes a reduction box; the reduction box is provided with a plurality of mutually meshing reduction gears; the driving unit is a motor, and a power gear is provided at the output end of the motor; the power gear is transmission-connected to one of the reduction gears; and the transmission gear is transmission-connected to another reduction gear.

10. The flip-top cover mechanism of the automatic packaging trash can according to claim 9, characterized in that: The plurality of reduction gears are distributed in a triangular shape.

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