A garbage bin with lid that can be opened and closed automatically

Abstract

A trash can with an automatically openable lid comprises a box body and a box lid, the box lid is connected to the box body through a pivot mechanism, an opening button and a closing button are arranged at the lower part of the box body, a mounting platform is arranged at the top of one side of the box body, and the pivot mechanism is arranged on the mounting platform; it also comprises an electric control board fixed to the box body, the electric control board contains a control circuit, and the action sequence of the electrical components is program-controlled, and the opening button and the closing button are both electrically connected to the electric control board; the end of the box lid is provided with a connecting part, the connecting part is connected to the two ends of the pivot, and the rotation of the pivot drives the rotation of the box lid to realize opening or closing. The present invention is suitable for both household and community use, and only the volume needs to be changed; the opening button of the box lid is arranged at the lower part of the box body, so that the person placing the trash can avoids bending over to operate, and the box lid is arranged and driven to rotate by a driving motor, so that the box lid is opened stably and overturning is avoided.

Description

Technical Field

[0001] The invention relates to the field of garbage bins, in particular to a garbage bin with a lid capable of automatically opening and closing. Background Art

[0002] At present, under the background of the country's vigorous advocacy of building an ecological civilization, environmental sanitation issues in cities and rural areas are receiving more and more attention. Trash cans, as the most common shared sanitation products, are widely used in urban households and communities. The traditional way of dealing with garbage is that residents put the garbage in their homes into trash cans or garbage bins close to the users' homes for collection.

[0003] However, current trash cans are not unified for both household and public use. When used at home, airtightness is the most important property, so they all have lids. However, household trash cans are often small in size and insufficient in height, requiring users to bend over to open them. There are also structures that open the lids by stepping on pedals, but these structures are all achieved through deformation structures, and the lids have great kinetic energy after opening. Household trash cans are small in size and easily overturned, especially when there is less garbage stored in the trash cans. In addition, users need to bend over to close the lids, which is inconvenient to use. When used in public, for example, community-wide trash cans currently use uncovered trash cans to facilitate lifting and cleaning by replacement vehicles. However, such trash cans lack airtightness, and especially in hot weather, bacteria breed and volatile odors spread everywhere, which is not conducive to the living environment of the community.

[0004] In view of these situations, the present application provides a trash can with an automatically openable lid, which can meet the different usage requirements of residents' homes and public use. Summary of the Invention

[0005] In response to the problems raised in the background art, the present invention provides a trash can with a lid that can be opened and closed automatically to solve the problem. The present invention will be further explained below.

[0006] A trash can with an automatically openable lid comprises a box body and a box lid, the box lid being connected to the box body through a pivot mechanism, an open button and a close button being provided at the lower portion of the box body, a mounting platform being provided at the top of one side of the box body, and the pivot mechanism being installed on the mounting platform; the pivot mechanism comprising a bracket fixed to the mounting platform, a pivot being connected to the bracket, a gear being connected to a key on the pivot, a drive motor being fixed to the mounting platform, a drive gear and a power supply electrically connected to the drive motor being provided on the output shaft of the drive motor, and the drive gear being meshed with the gear; and further comprising an electric control board fixed to the box body, the electric control board containing a control circuit for program-controlling the action sequence of the electrical components, the open button and the close button being electrically connected to the electric control board; a connecting portion being provided at the end of the box lid, the connecting portion being connected to both ends of the pivot, and the rotation of the pivot driving the rotation of the box lid to achieve opening or closing.

[0007] Preferably, a protective cover is fixedly connected to the box body, the pivot rotation mechanism is built into the protective cover, the two ends of the pivot are exposed from the protective cover, and the connecting part is connected to the two ends of the pivot exposed from the protective cover; the pivot rotation mechanism is isolated from the environment by the protective cover.

[0008] Preferably, the protective cover is semi-cylindrical, and an arc portion extends outward from one end of the box cover. The connecting portion is connected to the arc portion, and the inner wall of the arc portion is coaxially fitted with the protective cover; during the rotation of the box cover, the protective cover contacts the inner wall surface of the arc portion, the overall appearance is more beautiful, and the movement is smoother.

[0009] Preferably, the opening angle of the box cover is 120°.

[0010] Preferably, a stop portion is provided on the box body, and after the driving motor drives the box cover to rotate 120°, the arc portion hits the stop portion and stops.

[0011] Preferably, the stop portion is provided with a hollow chamber, a through opening is provided on the stop portion, and torsion springs are provided at both ends of the through opening, one of the two arms of the torsion spring is fixed to the inner wall of the stop portion, and the other arm is connected to a baffle, and when the torsion spring is in a naturally non-deformed state, the baffle just closes the through opening;

[0012] Preferably, a convex portion is provided on the end face of the arc portion. After the driving motor drives the box cover to rotate, the convex portion hits the baffle that closes the opening, pushing the baffle to rotate so that the torsion spring is deformed, and the kinetic energy of the box cover is stored in the torsion spring, thereby avoiding the box cover from mechanically impacting the stop portion and causing rebound.

[0013] Preferably, the stop portion is arranged directly below the protective cover, the arc portion is tangent to the top surface of the box cover, and the central angle of the arc portion is 60°; the stop portion is located directly below the protective cover, and the protective cover is used to shield and protect the opening.

[0014] Preferably, a hollow chamber is provided in the stop portion to provide an in-position sensor for detecting whether the box lid is in the open position. After the box lid is in the open position, the protrusion knocks open the baffle closing the opening and contacts the in-position sensor, thereby triggering the in-position sensor. A in-position button is also provided on the top of the box body to detect whether the box lid is in the closed position. After the box lid is in the closed position, the box lid presses down the in-position button to trigger it. The in-position sensor and the in-position button are both connected to the electric control board.

[0015] After passing through the in-place button trigger signal, the open button trigger signal, and the in-place sensor trigger signal, three signals in total serve as inputs to the AND gate circuit, and the output serves as the start signal for the drive motor to rotate in the forward direction. After passing through the in-place button trigger signal, the close button trigger signal, and the in-place sensor trigger signal, three signals in total serve as inputs to the AND gate circuit, and the output serves as the start signal for the drive motor to rotate in the reverse direction. This prevents the drive motor from being overloaded due to accidental touches. Furthermore, if the trash bin is full and overflowing, the in-place button will remain untriggered. At this time, triggering either the open or close button will prevent the drive motor from starting, thus avoiding excessive garbage accumulation.

[0016] Preferably, a torque sensor is provided on the pivot, which triggers the electronic control board to disconnect the output to the drive motor when the torque reaches a preset value, thereby avoiding the situation where the box cover cannot be completely closed when the connections are full and the drive motor is damaged.

[0017] Preferably, a hollow chamber is provided in the stop portion to communicate with the internal space of the protective cover, and an air vent extending inward is provided at the bottom of the stop portion; the internal and external pressure balance is maintained through the air vent, and the air vent provided at the bottom prevents the intrusion of wind, sand and rain.

[0018] Preferably, a roller is pivotally connected to the bottom of the pivot mechanism on the box body, and a pressure block is provided at the bottom of the box body at the same height as the roller. The presence of the pressure block moves the center of gravity of the trash can forward, thereby achieving a stable effect when the box lid is opened, and the trash can cannot be moved when it is placed at rest. When it needs to be moved, the trash can is rotated with the roller as the axis, and one end of the pressure block is lifted to move it.

[0019] Beneficial effects: Compared with the prior art, the present invention is suitable for both household and community use, and only the volume needs to be changed; the opening button of the box lid is set at the lower part of the box body, which avoids the garbage placer from bending over to operate, and at the same time, the box lid is set and driven by a driving motor to rotate the box lid, so that the box lid opens stably and avoids overturning; at the same time, the logical relationship of the trigger signal of the driving motor is designed to avoid damage to the device due to accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Side view of the overall structure of the present invention;

[0021] Figure 2 : The overall structure front view of the present invention;

[0022] Figure 3 : Rear view of the overall structure of the present invention;

[0023] Figure 4 : Figure 3 A schematic diagram of the structure at center A;

[0024] Figure 5 : Schematic diagram of the box cover of the present invention after it is fully opened;

[0025] Figure 6 : Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0026] Figure 7 : Figure 6 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 8 : The schematic diagram shows the sensor being triggered after the lid is fully opened.

[0028] Figure 9 : A schematic structural diagram of the present invention after a roller is provided;

[0029] In the figure: box body 1, box cover 2, connecting portion 21, arc portion 22, convex portion 221, open button 3, close button 4, mounting platform 5, bracket 6, pivot 7, gear 8, drive motor 9, drive gear 10, power supply 11, electronic control board 12, protective cover 13, stop portion 14, through port 141, torsion spring 15, baffle 16, in-position sensor 17, in-position button 18, vent 19, roller 20, pressure block 23, torque sensor 24. DETAILED DESCRIPTION

[0030] Next, combine the Figure 1-9 A specific embodiment of the present invention is described in detail.

[0031] A trash can with an automatically openable lid comprises a body 1 and a lid 2. The lid 2 is connected to the body 1 via a pivot mechanism. An open button 3 and a close button 4 are provided at the lower portion of the body 1. By kicking the open button 3 or the close button 4, the pivot mechanism drives the lid 2 to rotate to open or close the lid 2.

[0032] A mounting platform 5 is provided on the top of one side of the box body 1. The pivot mechanism is installed on the mounting platform 5 and includes a bracket 6 fixed on the mounting platform 5. The bracket 6 is connected to a pivot 7. The pivot 7 is keyed to a gear 8. The gear 8 rotates synchronously with the pivot 7. In order to limit the displacement of the gear 8 in the axial direction of the pivot 7, The pivot 7 is provided with a boss and a slot, and one end face of the gear 8 contacts On this shoulder, a retaining spring is set in the slot, and the other end face of the gear 8 is restricted by the retaining spring.; A drive motor 9 is also fixed on the mounting table 5, and a drive gear 10 and a power supply 11 electrically connected to the drive motor 9 are provided on the output shaft of the drive motor 9, and the drive gear 10 is engaged with the gear 8; the pivot rotation mechanism also includes an electric control board 12 fixed to the box body 1, and the electric control board 12 contains a control circuit for program-controlling the action sequence of the electrical components. The open button 3 and the close button 4 are both electrically connected to the electric control board; a connecting portion 21 is provided at the end of the box cover 2, and the connecting portion 21 is connected to both ends of the pivot 7, and the rotation of the pivot 7 drives the box cover 2 to rotate to achieve opening or closing.

[0033] When it is necessary to open, the operator does not need to bend down but can directly kick the open button 3 with his foot. The open button 3 generates a signal and triggers the control program on the electric control board 12. The output signal starts the drive motor 9 to operate. The drive motor 9 rotates and outputs to rotate the drive gear 10, and then drives the pivot 7 to rotate through the meshing action with the gear 8. The rotating pivot 7 drives the box cover 2 to rotate, realizing the opening operation of the box cover 2. When it is necessary to close, the same operation is performed by kicking the close button 4 with the foot. The action sequence of each component is the same, only the direction is opposite, which will not be repeated. The present application adopts the drive motor 9 as the power source. Based on the continuous controllable characteristics of the drive motor 9 action, the box cover 2 does not have a large kinetic energy after opening. After opening in place, it can be stably stationary at a certain angle, and the trash can no longer be overturned. By installing the switch at the lower part of the trash can, the operation of bending down to open is eliminated, and the volume of the box body 1 can still be designed as required, and it is suitable for both home and public use.

[0034] A protective cover 13 is also fixedly connected to the box body 1. The pivot rotation mechanism is built into the protective cover 13 to provide environmental isolation protection for the pivot rotation mechanism, especially for open-air public trash cans. The two ends of the pivot 7 are exposed to the protective cover 13, and the connecting part 21 is connected to the two ends of the pivot 7 exposed to the protective cover 13.

[0035] The protective cover 13 is semi-cylindrical, and an arc portion 22 extends outward from one end of the box cover 2. The connecting portion 21 is connected to the arc portion 22, and the inner wall of the arc portion 22 is coaxially fitted with the protective cover 13. During the rotation of the box cover 2, the protective cover 13 contacts the inner wall surface of the arc portion 22, making the overall appearance more beautiful and the movement smoother.

[0036] When the garbage in the box body 1 needs to be cleaned, the box cover needs to be in the open state. When used at home, it is only necessary to put a garbage bag in the box body 1. When used for public purposes, an inner barrel is also provided in the box body 1, and the sanitation vehicle can recycle the garbage by grabbing the inner barrel. In any case, the opening angle of the box cover 2 must meet the requirement of not interfering with the cleaning and removal of garbage. The opening angle must be at least 90°. If the opening angle is too large, it will not only take a long time to open, but also occupy a large space. In this embodiment, it is set to 120°, that is, after the foot kicks the closing button 4, the drive motor 9 drives the box cover 2 to rotate 120°.

[0037] In order to ensure that the box cover 2 stops after rotating 120° to open and reduce the requirements for the driving motor, this embodiment provides a stop portion 14 on the box body 1. After the driving motor 9 drives the box cover 2 to rotate 120°, the arc portion 22 hits the stop portion 14 and stops.

[0038] In practice, the driving motor 9 drives the box cover 2 to rotate 120 degrees, which involves angle control. The motor control accuracy is high, and there is a rebound after the arc portion 22 hits the stop portion 14, resulting in unstable angle control. Based on this, in this embodiment, a hollow chamber is set in the stop portion 14, and a through opening 141 is opened on the stop portion 14. Torsion springs 15 are set at both ends of the through opening 141. One of the two arms of the torsion spring 15 is fixed to the inner wall of the stop portion 14, and the other arm is connected to the baffle 16. When the torsion spring 15 is in a naturally non-deformed state, the baffle 16 just closes the opening 141, preventing the invasion of wind, sand and rain from the outside; a convex portion 221 is provided on the end face of the arc portion 22. After the driving motor 9 drives the box cover 2 to rotate 120°, the convex portion 221 hits the baffle 16 that closes the opening 141, pushing the baffle 16 to rotate so that the torsion spring 15 is deformed, and then the kinetic energy of the box cover 2 is stored by the torsion spring 15, avoiding the mechanical impact of the box cover on the stop portion 14 to produce rebound.

[0039] The stop portion 14 is arranged directly below the protective cover 13, and the opening 141 is shielded and protected by the protective cover 13. Based on the fact that the opening angle of the box cover 2 is 120°, in this embodiment, in order to maintain the top surface of the box cover 2 horizontal, the arc portion 22 is tangent to the top surface of the box cover 2, and the central angle of the arc portion 22 is 60°, thus satisfying the requirement that the stop portion 14 is located directly below the protective cover 13.

[0040] During use, the above-mentioned operation can be followed to cycle between opening and closing of the box door. However, in practice, the operator may accidentally touch the button, that is, kick the close button 4 or the open button 3 twice in succession, while the box cover 2 is already in the in-position state. At this time, the load of the drive motor 9 is too large. To avoid this situation, the present embodiment further adjusts and controls the action sequence under the control of the electric control board 12. A position sensor 17 is provided in the hollow chamber set in the stop portion 14. The position sensor 17 is used to obtain the opening position of the box cover 2. After the box cover 2 is fully opened, the protrusion 221 knocks open the baffle 16 that closes the opening 141 and contacts the in-place sensor 17, triggering the in-place sensor 17. At this time, the baffle 16 rotates 90° and sticks to the side of the protrusion 221, clamping the protrusion 221 to make it stationary. An in-place button 18 is also provided on the top of the box body 1 to obtain the closed state of the box cover 2. After the box cover 2 is fully closed, the box cover 2 presses down the in-place button 18 to trigger it. The in-place sensor 17 and the in-place button 18 are both connected to the electric control board 12.

[0041] The in-position button 18 trigger signal, the open button 3 trigger signal, and the in-position sensor 17 trigger signal, after passing through the inverting gate circuit, a total of three signals serve as the input of the AND gate circuit, and the output serves as the starting signal for driving the motor 9 to rotate forward; the in-position button 18 trigger signal, the close button 4 trigger signal, and the in-position sensor 17 trigger signal, after passing through the inverting gate circuit, a total of three signals serve as the input of the AND gate circuit, and the output serves as the starting signal for driving the motor 9 to rotate reversely.

[0042] Based on this circuit design, after the open button 3 is triggered, the drive motor 9 can only be triggered to rotate forward to open the box cover 2 when the in-place button 18 is in the triggered state and the in-place sensor 17 is not triggered. After the box cover 2 is fully opened, the in-place sensor 17 is triggered, and the drive motor 9 stops at this time. The box cover 2 is clamped and fixed by the baffle 16. At this time, if the open button 3 is triggered again, the drive motor 9 will not be able to start; only after the close button 4 is triggered can the drive motor 9 be started in the reverse direction to drive the box cover 2 to close. Similarly, after the box cover 2 is closed in place, the drive motor 9 stops after the in-place button 18 is triggered.

[0043] It should also be noted that when the trash can is full of garbage and overflowing, the box cover 2 will not be able to be completely closed. At this time, the in-place button 18 will be in a state where it cannot be triggered. At this time, no matter whether the open button 3 or the close button 4 is triggered, the drive motor 9 cannot be started, avoiding the situation of excessive garbage accumulation. However, at this time, the box cover 2 fails to trigger the in-place button 18, so that the drive motor 9 is always in a load action state but cannot rotate. In order to protect the drive motor 9, a torque sensor 24 is provided on the pivot 7 in this embodiment. When the torque reaches a preset value, the electronic control board 12 is triggered to disconnect the output to the drive motor 9.

[0044] The present invention forms a closed space by installing a protective cover 13 on the box body 1. In order to maintain the balance of internal and external pressures and avoid the influence of thermal expansion and contraction caused by climate change, the stop portion 14 is provided with a hollow chamber in this embodiment to communicate with the internal space of the protective cover 13. The bottom of the stop portion 14 is provided with an air vent 19 extending inward. The balance of internal and external pressures is maintained through the air vent 19, and the air vent 19 provided at the bottom prevents the intrusion of wind, sand and rain.

[0045] The present application selects the elastic component of the prior art to drive the box cover 2 by driving the drive motor 9, so that the movement is smooth and the risk of overturning is reduced. However, based on the present application, the pivot rotation mechanism is set on one side of the box body 1, and the box cover 2 rotates around the pivot rotation mechanism, which increases the risk of overturning to a certain extent. In order to further ensure stability and facilitate movement, especially for public trash cans, this embodiment has a roller 20 pivoted at the bottom of the pivot rotation mechanism on the box body 1, and a pressure block 23 is set at the bottom of the box body 1 at the same height as the roller 20. The presence of the pressure block 23 moves the center of gravity of the trash can forward, thereby achieving a stabilizing effect on the box cover 2 when it is opened.

[0046] The pressing block 23 can be directly set as the bottom thickening treatment of the box body 1. The pressing block 23 is set at the same height as the roller 20, so that the trash can cannot be moved when it is placed still. When it needs to be moved, the trash can is rotated around the roller 20 as the axis and one end of the pressing block 23 is lifted to move it.

[0047] The present invention is suitable for both household and community use, and only the volume needs to be changed; the opening button of the box cover is arranged at the lower part of the box body, which avoids the person placing the garbage to bend over to operate; at the same time, the box cover is arranged and is driven to rotate by a driving motor, so that the box cover opens stably and avoids overturning; at the same time, the logical relationship of the trigger signal of the driving motor is designed to avoid damage to the device due to accidental touch, and also avoid the situation where the garbage continues to pile up and overflows after it is full.

[0048] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A trash can with an automatically openable lid, comprising a body (1) and a lid (2), the lid (2) being connected to the body (1) via a pivot mechanism, an opening button (3) and a closing button (4) being provided at the lower portion of the body (1), a mounting platform (5) being provided at the top of one side of the body (1), the pivot mechanism being mounted on the mounting platform (5); characterized in that: The pivot mechanism comprises a bracket (6) fixed on a mounting platform (5), a pivot (7) connected to the bracket (6), a gear (8) key-connected to the pivot (7), a drive motor (9) fixed to the mounting platform (5), a drive gear (10) and a power source (11) electrically connected to the drive motor (9) being arranged on the output shaft of the drive motor (9), and the drive gear (10) meshing with the gear (8); a boss and a groove are arranged on the pivot (7), one end face of the gear (8) contacts the boss, a retaining spring is arranged in the retaining groove, and the other end face of the gear (8) is restricted by the retaining spring; It also includes an electric control board (12) fixed on the box body (1), the electric control board (12) containing a control circuit for program-controlling the action sequence of the electrical components, and the on button (3) and the off button (4) are both electrically connected to the electric control board; the end of the box cover (2) is provided with a connecting portion (21), the connecting portion (21) is connected to the two ends of the pivot (7), and the box cover (2) is driven to rotate by the rotation of the pivot (7) to achieve opening or closing; The box body (1) is also fixedly connected to a protective cover (13), the pivot rotation mechanism is built into the protective cover (13), both ends of the pivot (7) are exposed from the protective cover (13), and the connecting portion (21) is connected to both ends of the pivot (7) exposed from the protective cover (13); The protective cover (13) is semi-cylindrical, one end of the box cover (2) extends outwardly to form an arc portion (22), the connecting portion (21) is connected to the arc portion (22), and the inner wall of the arc portion (22) is coaxially fitted with the protective cover (13), and during the rotation of the box cover (2), the protective cover (13) is in contact with the inner wall of the arc portion (22); The opening angle of the box cover (2) is 120°; The box body (1) is provided with a stop portion (14), and after the driving motor (9) drives the box cover (2) to rotate 120 degrees, the arc portion (22) hits the stop portion (14) and stops; The stop portion (14) is provided with a hollow chamber, a through opening (141) is provided on the stop portion (14), torsion springs (15) are provided at both ends of the through opening (141), one of the two arms of the torsion spring (15) is fixed to the inner wall of the stop portion (14), and the other arm is connected to a baffle (16), and when the torsion spring (15) is in a naturally non-deformed state, the baffle (16) just closes the through opening (141); a convex portion (221) is provided on the end surface of the arc portion (22), and after the driving motor (9) drives the box cover (2) to rotate 120°, the convex portion (221) hits the baffle (16) that closes the through opening (141), pushing the baffle (16) to rotate so that the torsion spring (15) is deformed; The stop portion (14) is arranged directly below the protective cover (13), the arc portion (22) is tangent to the top surface of the box cover (2), and the central angle of the arc portion (22) is 60°; The stop portion (14) is provided with a hollow chamber in which an in-position sensor (17) is provided for obtaining the opening position of the box cover (2). After the box cover (2) is in the opening position, the protrusion (221) knocks open the baffle (16) sealing the opening (141) and contacts the in-position sensor (17), thereby triggering the in-position sensor (17). The top of the box body (1) is also provided with an in-position button (18) for obtaining the closing position of the box cover (2). After the box cover (2) is in the closing position, the box cover (2) presses down the in-position button (18) to trigger it. The in-position sensor (17) and the in-position button (18) are connected to the electric control board (12); the in-position button (18) trigger signal, the on button (3) trigger signal, and the in-position sensor (17) trigger signal are input to the AND gate circuit after passing through the inverting gate circuit, and the output is used as a start signal for driving the motor (9) to rotate in the forward direction; the in-position button (18) trigger signal, the off button (4) trigger signal, and the in-position sensor (17) trigger signal are input to the AND gate circuit after passing through the inverting gate circuit, and the output is used as a start signal for driving the motor (9) to rotate in the reverse direction.

2. The trash can according to claim 1, characterized in that: A torque sensor (24) is provided on the pivot shaft (7), and when the torque reaches a preset value, the electric control board (12) is triggered to disconnect the output to the drive motor (9).

3. The trash can according to claim 2, characterized in that: The stop portion (14) is provided with a hollow chamber in communication with the internal space of the protective cover (13), and the bottom of the stop portion (14) is provided with an air hole (19) extending inwardly; A roller (20) is pivotally connected to the bottom of the pivot mechanism on the box body (1), and a pressing block (23) is arranged at the bottom of the box body (1) at the same height as the roller (20). The presence of the pressing block (23) moves the center of gravity of the trash bin forward.

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