Large-cover slow descending mechanism and intelligent garbage can

Abstract

The utility model discloses a large-cover slow descending mechanism and an intelligent garbage can, and belongs to the technical field of garbage storage devices. The large cover slow descending mechanism is located between the large cover and the can body and rotationally connected with the large cover rotating shaft, and the large cover slow descending mechanism comprises a clutch and a damper. The clutch comprises a first gear and a clutch locking mechanism located in the first gear, the large cover rotating shaft is inserted into a center hole of the first gear, and the clutch locking mechanism is located outside the outer side edge of the large cover rotating shaft; the damper comprises a second gear and a damping mechanism, the first gear is in meshing transmission connection with the second gear, and the second gear is fixedly connected with the damping mechanism. According to the large cover slow descending mechanism, the damping slow descending effect when the large cover is closed is achieved through a gear structure and friction damping movement, the production input cost is greatly reduced, and meanwhile the weight of the intelligent garbage can is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of garbage collection devices, specifically relating to a large-lid slow-closing mechanism and an intelligent garbage bin. Background Technology

[0002] A typical smart trash can consists of a small lid, a large lid, and a body. The small and large lids fit together at the opening on the top of the body. The small lid allows users to dispose of trash into the can, while the large lid allows users to remove the packed trash bag. Typically, the small lid is smart-controlled, while the large lid is manually operated.

[0003] When the large lid opens and closes, the small lid opens and closes along with it. At the same time, the large lid is equipped with intelligent packaging mechanisms, etc., so it is quite heavy and difficult to open and close. Especially when the large lid is closed, the heavy large lid mechanism may pinch your hand or damage the barrel. Therefore, a slow-closing mechanism is usually set up to solve the above problems.

[0004] For example, Chinese invention patent application CN109230090A discloses a lid-closing device, including a mechanical control section and an electrical control section. The mechanical control section includes a reduction gearbox, a lid rotatably connected to the reduction gearbox, and a torsion spring installed between the reduction gearbox and the lid. The lid has a rotating bracket, which includes a rotating end rotatably connected to the reduction gearbox and a bracket end fixedly connected to the lid. The torsion spring has a first torsion arm and a second torsion arm, the rotation center of the torsion spring being coaxial with the transmission output shaft of the reduction gearbox. The first torsion arm is limited by the reduction gearbox, and the second torsion arm is limited by the lid. The electrical control section includes a motor rotatably connected to the lid and a main control device for controlling the forward and reverse rotation of the motor and braking. This lid-closing device has a complex structure and requires electrical control, resulting in high production costs. Furthermore, the entire smart trash can is heavier, making transportation and handling more difficult. Utility Model Content

[0005] The purpose of this utility model is to provide a large-lid slow-closing mechanism and an intelligent trash can to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model discloses a large cover slow-descent mechanism, located between the large cover and the barrel body, and rotatably connected to the large cover rotation shaft. The large cover slow-descent mechanism includes a clutch and a damper.

[0007] The clutch includes a first gear and a clutch locking mechanism located within the first gear. The large cover rotating shaft is inserted into the central hole of the first gear, and the clutch locking mechanism is located outside the outer edge of the large cover rotating shaft.

[0008] The damper includes a second gear and a damping mechanism, wherein the first gear is meshed with the second gear and the second gear is connected in a transmission manner, and the second gear is fixedly connected to the damping mechanism.

[0009] Furthermore, the clutch locking mechanism includes a moving block and an elastic mechanism. A locking groove is formed on the first gear, with an opening on one side that communicates with the center hole of the first gear. The moving block and the elastic mechanism are located within the locking groove. The end of the moving block away from the elastic mechanism is wedge-shaped, and the structure of the locking groove is adapted to the structure of the moving block. One end of the elastic mechanism abuts against the side wall of the locking groove, and the other end abuts against the moving block.

[0010] The outer edge of the moving block facing the center hole of the first gear is an arc-shaped structure, the curvature of the arc-shaped structure is the same as the curvature of the center hole of the first gear, and a first oblique sawtooth is provided on the arc-shaped structure.

[0011] The rotating shaft of the large cover is a two-stage stepped shape, wherein the diameter of the first step is smaller than the diameter of the second step, and the first step is movably inserted into the central hole of the first gear; a second oblique saw tooth is provided on the outer edge of the second step along its axial direction, the end face of the first oblique saw tooth abuts against the end face of the second oblique saw tooth, and the inclination direction of the first oblique saw tooth and the second oblique saw tooth are opposite.

[0012] A rotating column is provided at one end of the rotating shaft of the large cover near the second step, and rotating holes are provided at the positions where the large cover and the barrel body rotate relative to each other, and the rotating column is inserted into the rotating holes.

[0013] Furthermore, there are multiple locking slots distributed circumferentially along the outer side of the central hole of the first gear, and each locking slot is provided with a set of clutch locking mechanisms.

[0014] Furthermore, there are four locking slots, which are evenly distributed circumferentially along the outer side of the central hole of the first gear.

[0015] Furthermore, the elastic mechanism is a spring or a sheet spring.

[0016] Furthermore, the damping mechanism includes a drive shaft, a drive box, an elastic block, and a cover plate;

[0017] One end of the drive shaft is fixedly inserted into the center hole of the second gear. A first through hole is provided on the transmission box at a position corresponding to the center hole of the second gear. The other end of the drive shaft is movably inserted into the first through hole and extends into the interior of the transmission box.

[0018] The elastic block is fixedly sleeved inside the transmission box. A second through hole is provided on the elastic block at a position corresponding to the first through hole. A mating surface is provided on the inner side of the second through hole. The transmission shaft is inserted into the second through hole, and a mating block is provided on the transmission shaft along its axial direction. The mating surface is adapted to the structure of the mating block. The outer edge of the mating block is pressed against the inner sidewall of the second through hole. The cover plate covers the outside of the transmission box.

[0019] Furthermore, the transmission ratio between the first gear and the second gear is 1:2; the number of the abutting surfaces and the abutting blocks are both two, and the included angle between the two abutting surfaces in the circumferential direction is 180°, and the included angle between the two abutting blocks in the circumferential direction is also 180°.

[0020] Furthermore, the elastic block is a rubber block or an elastic plastic block.

[0021] This utility model also claims protection for a smart trash can that employs the aforementioned lid slow-closing mechanism. Within one of these smart trash cans, there are two sets of lid slow-closing mechanisms, located at opposite ends of the connection between the lid and the can body.

[0022] Compared with existing technologies, the side-opening smart trash can of this invention has the following advantages:

[0023] (1) The large cover slow-closing mechanism of this utility model has a simple structure. It achieves the damping slow-closing effect when the large cover is closed through gear structure and friction damping motion, which greatly reduces the production input cost and reduces the weight of the smart trash can.

[0024] (2) The large cover slow-down mechanism of this utility model has no damping effect when the large cover is opened, which makes it easy for users to open the heavy large cover and improves the user's comfort. Attached Figure Description

[0025] Figure 1 : A 3D structural diagram of a smart trash can equipped with a large lid with a slow-closing mechanism.

[0026] Figure 2 : Figure 1 The image shows a 3D structural diagram of a smart trash can hidden behind a large lid.

[0027] Figure 3 Assembly structure diagram of the cover slow-descent mechanism and the barrel body.

[0028] Figure 4 : First three-dimensional structural diagram of the large cover slow descent mechanism.

[0029] Figure 5 : Second three-dimensional structural diagram of the large cover slow descent mechanism.

[0030] Figure 6 Exploded view of the large-scale descent mechanism.

[0031] Figure 7 Exploded view of the rotating shaft and clutch of the main cover.

[0032] Figure 8 Top view of the clutch.

[0033] Figure 9 Exploded view of the damper at the first angle.

[0034] Figure 10 : Exploded view of the damper at the second angle.

[0035] Among them, 1. Cover; 2. Barrel body; 3. Cover rotating shaft; 4. Cover slow-descent mechanism; 5. Clutch; 6. Damper; 31. First step; 32. Second step; 33. Second oblique sawtooth; 34. Rotating column; 51. First gear; 52. Locking groove; 53. Moving block; 54. Spring; 55. First oblique sawtooth; Second gear; 62. Drive shaft; 63. Drive box; 64. Elastic block; 65. Cover plate; 66. First through hole; 67. Second through hole; 68. Pressing block; 69. Pressing surface; 610. Accommodating hole. Detailed Implementation

[0036] The technical solution of this utility model will be described in detail below through specific embodiments.

[0037] like Figure 1-10 As shown, schematic diagrams of the overall and partial structures of the cover slow-descent mechanism of this utility model are presented respectively.

[0038] The lid-closing mechanism 4 is located between the lid 1 and the body 2 of the smart trash can, and is rotatably connected to the lid's rotating shaft 3. In one smart trash can, there are two sets of lid-closing mechanisms 4, located at opposite ends of the connection between the lid 1 and the body 2. Figure 2 and 3 The diagram only shows one end of a large cover slow-descent mechanism 4.

[0039] The cover slow-descent mechanism 4 includes a clutch 5 and a damper 6. The clutch 5 includes a first gear 51 and a clutch locking mechanism located inside the first gear 51. The cover rotating shaft 3 is inserted into the center hole of the first gear 51, and the clutch locking mechanism is located outside the outer edge of the cover rotating shaft 3.

[0040] The damper 6 includes a second gear 61 and a damping mechanism. The first gear 51 and the second gear 61 are meshed and connected for transmission. The second gear 61 and the damping mechanism are fixedly connected.

[0041] Specifically, the clutch locking mechanism includes a moving block 53 and an elastic mechanism. A locking groove 52 is provided on the first gear 51. One side of the locking groove 52 is open and communicates with the center hole of the first gear 51. The moving block 53 and the elastic mechanism are located in the locking groove 52. The end of the moving block 53 away from the elastic mechanism is wedge-shaped. The structure of the locking groove 52 is adapted to the structure of the moving block 53. One end of the elastic mechanism abuts against the side wall of the locking groove 52, and the other end abuts against the moving block 53.

[0042] Specifically, the elastic mechanism is a spring or a spring sheet, wherein the spring can be a regular spring or an A-shaped spring; in a particular embodiment, the elastic mechanism is spring 54.

[0043] The outer edge of the movable block 53 facing the center hole of the first gear 51 is an arc-shaped structure. The curvature of the arc-shaped structure is the same as the curvature of the center hole of the first gear 51, and a first oblique sawtooth 55 is provided on the arc-shaped structure.

[0044] The rotating shaft 3 of the large cover is a two-stage stepped shape, wherein the diameter of the first-stage step 31 is smaller than the diameter of the second-stage step 32. The first-stage step 31 is movably inserted into the central hole of the first gear 51. The outer edge of the second-stage step 32 is provided with a second oblique serration 33 along its axial direction. The end faces of the first oblique serration 55 and the second oblique serration 33 abut against each other, and the inclination directions of the first oblique serration 55 and the second oblique serration 33 are opposite.

[0045] A rotating column 34 is provided at one end of the rotating shaft 3 of the cover near the second step 32. Rotating holes are provided at the positions where the cover 1 and the barrel 2 rotate relative to each other, and the rotating column 34 is inserted into the rotating hole.

[0046] The locking grooves 52 are multiple and are distributed circumferentially along the outer side of the central hole of the first gear 51. Each locking groove 52 is provided with a set of clutch locking mechanisms. Specifically, in a particular embodiment, there are 4 locking grooves 52, which are evenly distributed circumferentially along the outer side of the central hole of the first gear 51. The included angle between each two adjacent locking grooves 52 in the circumferential direction is 90°.

[0047] The damping mechanism includes a drive shaft 62, a drive box 63, an elastic block 64, and a cover plate 65. One end of the drive shaft 62 is fixedly inserted into the center hole of the second gear 61. A first through hole 66 is provided on the drive box 63 at a position corresponding to the center hole of the second gear 61. The other end of the drive shaft 62 is movably inserted into the first through hole 66 and extends into the interior of the drive box 63.

[0048] The elastic block 64 is fixedly fitted inside the transmission box 63. A second through hole 67 is provided on the elastic block 64 at a position corresponding to the first through hole 66. A mating surface 69 is provided on the inner side of the second through hole 67. The transmission shaft 62 is inserted into the second through hole 67. A mating block 68 is provided on the transmission shaft 62 along its axial direction at a position corresponding to the mating surface 69, and the mating surface 69 and the mating block 68 are structurally compatible. The outer edge of the mating block 68 is pressed against the inner wall of the second through hole 67. The cover plate 65 covers the outside of the transmission box 63. Specifically, the elastic block 64 is a rubber block or an elastic plastic block.

[0049] A receiving hole 610 is provided on the side of the transmission box 63 away from the cover plate 65. The receiving hole 610 is a blind hole. The position of the receiving hole 610 corresponds to the position of the first step 31 of the large cover rotating shaft 3. After the first step 31 of the large cover rotating shaft 3 is inserted into the center hole of the first gear 51, the part of the first gear 51 extending out is hidden in the receiving hole 610.

[0050] In a specific embodiment, the transmission ratio between the first gear 51 and the second gear 61 is 1:2, the number of abutting surfaces 69 and abutting blocks 68 are both 2, and the included angle between the two abutting surfaces 69 in the circumferential direction is 180°, and the included angle between the two abutting blocks 68 in the circumferential direction is also 180°.

[0051] The working process of the large cover slow-descent mechanism of this utility model is as follows:

[0052] (i) When the large cover 1 is opened, the large cover 1 drives the large cover rotating shaft 3 to rotate relative to the barrel body 2. At this time, the large cover rotating shaft 3 rotates clockwise. At this time, the second oblique saw tooth 33 on the outer edge of the second step 32 of the large cover rotating shaft 3 rotates synchronously. Since the first oblique saw tooth 55 and the second oblique saw tooth 33 have opposite inclination directions, when the second oblique saw tooth 33 rotates, the rotation direction of the second oblique saw tooth 33 is consistent with the inclination direction of the first oblique saw tooth 55. There is no meshing transmission between the first oblique saw tooth 55 and the second oblique saw tooth 33. At this time, the clutch 5 is opened, the first gear 51 and the second gear 61 do not rotate, the damper 6 does not work, and the large cover 1 can be opened normally without damping.

[0053] (ii) When the lid 1 is closed, the lid 1 drives the lid rotating shaft 3 to rotate relative to the barrel body 2. At this time, the lid rotating shaft 3 rotates counterclockwise, the first gear 51 and the second gear 61 mesh and drive, driving the moving block 53 to move towards the wedge structure of the locking groove 52. At the same time, the spring 54 further pushes the moving block 53 to move. At this time, the lid rotating shaft 3 and the moving block 53 are locked together, the clutch 5 is locked, and the lid rotating shaft 3 drives the first gear 51 and then drives the second gear 61 to rotate.

[0054] The second gear 61 rotates clockwise, causing the transmission shaft 62 to rotate clockwise within the transmission box 63. The abutment block 68 on the transmission shaft 62 rotates relative to the inner wall of the second through hole 67 of the elastic block 64. The abutment block 68 presses against the inner wall of the second through hole 67, generating friction and reducing the rotational speed of the abutment block 68. This, in turn, reduces the rotational speed of the transmission shaft 62, the second gear 61, the first gear 51, and the large cover rotation shaft 3, thereby achieving the slow descent of the large cover 1.

[0055] Since the transmission ratio of the first gear 51 to the second gear 61 is 1:2, when the cover 1 is closed, the cover rotation shaft 3 drives the first gear 51 to rotate 90° in the circumferential direction, and the second gear 61 to rotate 180°. Therefore, the abutment block 68 moves from one abutment surface 69 to another abutment surface 69 within the second through hole 67, and the cover 1 is completely closed. When the cover 1 is closed again, the abutment block 68 continues to rotate in the same direction within the second through hole 67, continuing to achieve the effect of damping and slow descent.

[0056] Since the rotation direction of the cover rotation shaft 3 can be clockwise or counterclockwise when viewed from different directions when the cover 1 is open or closed, the above working process only gives one specific rotation form. It is worth noting that in order to achieve the effect of the cover 1 opening normally without damping and closing with damping, the tilt direction of the first oblique sawtooth 55 and the second oblique sawtooth 33, the orientation of the wedge structure of the moving block 53 and the locking groove 52, and the specific position of the abutment surface 69 need to be adaptively adjusted. Those skilled in the art can make adaptive designs based on the above specific technical solutions, which will not be elaborated here.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this utility model should be included within the protection scope of this utility model.

Claims

1. A lid-lowering mechanism, located between the lid and the barrel body, and rotatably connected to the lid's rotating shaft, characterized in that: The large cover slow-descent mechanism includes a clutch and a damper; The clutch includes a first gear and a clutch locking mechanism located within the first gear. The large cover rotating shaft is inserted into the central hole of the first gear, and the clutch locking mechanism is located outside the outer edge of the large cover rotating shaft. The damper includes a second gear and a damping mechanism, wherein the first gear is meshed with the second gear and the second gear is connected in a transmission manner, and the second gear is fixedly connected to the damping mechanism.

2. The large cover slow-descent mechanism as described in claim 1, characterized in that: The clutch locking mechanism includes a moving block and an elastic mechanism. A locking groove is formed on the first gear, with an opening on one side that communicates with the center hole of the first gear. The moving block and the elastic mechanism are located within the locking groove. The end of the moving block away from the elastic mechanism is wedge-shaped. The structure of the locking groove is adapted to the structure of the moving block. One end of the elastic mechanism abuts against the side wall of the locking groove, and the other end abuts against the moving block. The outer edge of the moving block facing the center hole of the first gear is an arc-shaped structure, the curvature of the arc-shaped structure is the same as the curvature of the center hole of the first gear, and a first oblique sawtooth is provided on the arc-shaped structure. The rotating shaft of the large cover is a two-stage stepped shape, wherein the diameter of the first step is smaller than the diameter of the second step, and the first step is movably inserted into the central hole of the first gear; a second oblique saw tooth is provided on the outer edge of the second step along its axial direction, the end face of the first oblique saw tooth abuts against the end face of the second oblique saw tooth, and the inclination direction of the first oblique saw tooth and the second oblique saw tooth are opposite. A rotating column is provided at one end of the rotating shaft of the large cover near the second step, and rotating holes are provided at the positions where the large cover and the barrel body rotate relative to each other, and the rotating column is inserted into the rotating holes.

3. The large cover slow-descent mechanism as described in claim 2, characterized in that: There are multiple locking slots, which are distributed circumferentially along the outer side of the central hole of the first gear, and each locking slot is provided with a set of clutch locking mechanisms.

4. The large cover slow-descent mechanism as described in claim 3, characterized in that: There are four locking slots, which are evenly distributed circumferentially along the outer side of the central hole of the first gear.

5. The large cover slow-descent mechanism as described in claim 2, characterized in that: The elastic mechanism is a spring or a sheet spring.

6. The large cover slow-descent mechanism as described in claim 1, characterized in that: The damping mechanism includes a drive shaft, a drive box, an elastic block, and a cover plate; One end of the drive shaft is fixedly inserted into the center hole of the second gear. A first through hole is provided on the transmission box at a position corresponding to the center hole of the second gear. The other end of the drive shaft is movably inserted into the first through hole and extends into the interior of the transmission box. The elastic block is fixedly sleeved inside the transmission box. A second through hole is provided on the elastic block at a position corresponding to the first through hole. A mating surface is provided on the inner side of the second through hole. The transmission shaft is inserted into the second through hole, and a mating block is provided on the transmission shaft along its axial direction. The mating surface is adapted to the structure of the mating block. The outer edge of the mating block is pressed against the inner sidewall of the second through hole. The cover plate covers the outside of the transmission box.

7. The large cover slow-descent mechanism as described in claim 6, characterized in that: The transmission ratio between the first gear and the second gear is 1:2; there are two abutting surfaces and two abutting blocks, and the included angle between the two abutting surfaces in the circumferential direction is 180°, and the included angle between the two abutting blocks in the circumferential direction is also 180°.

8. The large cover slow-descent mechanism as described in claim 6, characterized in that: The elastic block is a rubber block or an elastic plastic block.

9. A smart trash can, characterized in that: The large cover slow-descent mechanism as described in any one of claims 1-8 is adopted.

10. The intelligent trash can as described in claim 9, characterized in that: Inside one of the smart trash cans, there are two sets of lid-closing mechanisms, located at both ends of the connection between the lid and the body of the can.

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