Intelligent garbage can

Abstract

The utility model provides a kind of intelligent garbage can, including the bucket body with bucket mouth, bucket cover, the driving device suitable for driving bucket cover opening and closing, foot pedal trigger module and main control chip U1, bucket cover has the lid closing state of closing bucket mouth and the lid opening state of exposing bucket mouth, foot pedal trigger module includes the mechanical connection of foot pedal and travel switch, foot pedal can rotate to trigger travel switch relative to bucket body, travel switch further generates foot pedal lid opening signal and foot pedal lid closing signal;Main control chip U1 is configured as: when the main control chip U1 receives foot pedal lid opening signal, it is suitable for controlling the driving device opens the bucket cover to lid opening state, and it only responds foot pedal lid closing signal to control the driving device closes the bucket cover to lid closing state.The utility model is set by foot pedal trigger module, so that triggering process has certain buffer and definite action stroke, and it is not easy to produce misoperation due to slight vibration or misoperation of outside.

Description

Technical Field

[0001] This utility model belongs to the field of trash can technology, and in particular relates to an intelligent trash can. Background Technology

[0002] With the improvement of people's living standards and the enhancement of environmental awareness, smart trash cans have gradually become common devices in homes and public environments. Among them, infrared-triggered smart trash cans require capturing hand movements when disposing of trash, which presents several inconveniences during use. For example, when people are holding items in both hands, it is difficult to free their hands to open the trash can lid. In foot-triggered smart trash cans, microswitches are commonly used as triggering elements. Microswitches are characterized by their simple structure and fast response speed, but they have several shortcomings in practical applications in smart trash cans. The triggering method of microswitches is relatively sensitive, usually requiring a tiny external force to momentarily switch the contacts on and off. In the environment where trash cans are used, surrounding vibrations, slight impacts, etc., can cause microswitches to be accidentally triggered, resulting in accidental opening or closing of the lid, affecting the user's normal operating experience. Furthermore, foot-triggered smart trash cans also suffer from complex control logic, slow system response speed, and are prone to misoperation. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an intelligent trash can to meet the needs of users.

[0004] To achieve the above objectives, this utility model provides an intelligent trash can, including...

[0005] The barrel body has a rim.

[0006] The bucket lid has a closed state (closing the bucket opening) and an open state (exposing the bucket opening).

[0007] A drive device adapted to drive the opening and closing of the bucket lid.

[0008] A foot pedal trigger module includes a foot pedal and a limit switch. The foot pedal can rotate relative to the bucket body to trigger the limit switch, which in turn generates a foot pedal open cover signal and a foot pedal close cover signal.

[0009] The main control chip U1 has the following configuration:

[0010] When the main control chip U1 receives the foot-operated lid opening signal, it is adapted to control the drive device to open the lid to the open state, and it responds to the foot-operated lid closing signal to control the drive device to close the lid to the closed state.

[0011] Preferably, the main control chip U1 can also automatically close the lid after a delay. Specifically, if the main control chip U1 does not receive a foot-operated lid-closing signal after a certain period of time in the open state, it can autonomously control the drive device to close the lid to the closed state.

[0012] Preferably, the foot pedal trigger module includes:

[0013] A first control circuit board is adapted to electrically connect the limit switch and the main control chip U1;

[0014] A transmission rod that rotates synchronously with the foot pedal;

[0015] The limit switch is located on the movement path of the transmission rod, and the transmission rod directly triggers the limit switch; or, a trigger is provided on the movement path of the transmission rod, and the transmission rod triggers the limit switch through the trigger.

[0016] Preferably, the foot pedal includes a first pedal, a second pedal, and a return spring. The first pedal is connected to the front side of the barrel, the second pedal is pivotally connected to the first pedal, the transmission rod is integrally formed or fixedly connected to the second pedal, and the return spring is adapted to drive the second pedal to return to its original position, ensuring the continuity of the next operation.

[0017] Preferably, the limit switch includes a switch body and an elastic spring. One end of the elastic spring is connected to the switch body and is inclined downward. The switch body includes a switch housing, a stationary contact and a moving contact disposed in the switch housing, a contact post adapted to reciprocate relative to the switch housing along the height direction of the barrel, and an elastic element adapted to drive the contact post to reset. The contact post extends out of the switch housing and contacts the elastic spring. The contact post is adapted to drive the moving contact and the stationary contact to make contact and conduct. The distance between the stationary contact and the moving contact defines the travel of the limit switch.

[0018] Preferably, the trigger includes a mounting bracket, a trigger part, and an elastic support part adapted to mount the trigger part on the mounting bracket. The trigger part is adapted to trigger the limit switch under the drive of the transmission rod, and the elastic support part is adapted to drive the trigger part to reset, that is, the trigger part disengages from the limit switch, ensuring the stability and accuracy of the limit switch triggering and improving the user's operating experience.

[0019] Preferably, the first control circuit board includes a first control circuit, the first control circuit including...

[0020] Limit switch

[0021] The KEYIN circuit is suitable for conditioning the high-level signal output from the limit switch and then inputting it to the main control chip U1.

[0022] The limit switch has three pins: pin 1 is left floating, pin 2 is connected to the input of the KEYIN line, the output of the KEYIN line is connected to the main control chip U1 through pin 4, and pin 3 is connected to the positive power supply VCC. When the limit switch is not triggered, pins 2 and 3 are disconnected.

[0023] When the limit switch is triggered, pins 2 and 3 are shorted. The high-level signal of the positive power supply VCC is conducted through pin 3 to pin 2, and then transmitted to the KEYIN circuit.

[0024] After receiving the signal change of the KEYIN line through pin 4, the main control chip outputs a control signal to the drive device to drive the bucket lid to open or close.

[0025] Preferably, the detection pin 4 of the main control chip U1 is configured in open-drain input mode for detecting the status of the external KEYIN signal, and the KEYIN line includes...

[0026] The current-limiting resistor R13 is suitable for preventing excessive current from flowing into the KEY_IN line. One end of the current-limiting resistor R13 is connected to the main control chip, and the other end of the current-limiting resistor R13 is connected to the limit switch. The resistance value of the current-limiting resistor R13 is 1KΩ.

[0027] Pull-down resistor R12 is adapted to pull the level of the KEY_IN line down to ground level when there is no external high-level signal input. One end of pull-down resistor R12 is connected to the main control chip, and the other end of pull-down resistor R12 is grounded. The resistance value of pull-down resistor R12 is 20KΩ.

[0028] The filter capacitor C17 is suitable for filtering out high-frequency noise signals on the KEY_IN line, making the input signal purer and more stable. One end of the filter capacitor C17 is connected to the input terminal of the KEY_IN line, and the other end of the filter capacitor C17 is grounded.

[0029] The open-drain input mode, combined with pull-down resistor R12, ensures the pin level remains stable at a low level when there is no valid input, reducing external interference and guaranteeing signal detection accuracy. Specifically, when the foot switch is not pressed, the KEY_IN line is pulled low due to the pull-down resistor R12, resulting in a low-level signal input to the microcontroller pin—this is the stable initial state. When the foot switch is pressed, the limit switch outputs a high level, which is transmitted to the KEY_IN line through the current-limiting resistor R13, causing the microcontroller pin to detect a high level. In open-drain input mode, the pin can effectively receive changes in external high and low level signals, accurately obtaining the foot switch status.

[0030] Preferably, it also includes an infrared triggering module, which includes a first sensing module adapted to generate an infrared opening signal and a second sensing module adapted to generate an infrared closing signal. The sensing area of ​​the first sensing module is the space above the lid, and the sensing area of ​​the second sensing module is the front area of ​​the bucket body.

[0031] The main control chip U1 is configured as follows:

[0032] When the main control chip U1 receives an infrared lid opening signal, it is adapted to control the drive device to open the lid to the open state, and it only responds to the infrared lid closing signal to control the drive device to close the lid to the closed state.

[0033] The first sensing module is disposed on the upper surface of the bucket lid, and the second sensing module is disposed on the lower surface of the bucket lid. The first sensing module and the second sensing module are disposed opposite to each other in the center of the bucket lid.

[0034] Preferably, the system also includes an indicator module, which includes a foot pedal indicator light disposed on the foot pedal. The foot pedal indicator light is connected to one pin of the main control chip. The foot pedal indicator light is lit up and remains lit when the foot pedal opening signal is generated. The foot pedal indicator light is turned off after the bucket lid responds to the foot pedal closing signal and switches to the closed state.

[0035] Preferably, the first sensing module includes a first signal transmitter and a first signal receiver. In the closed state, the first signal transmitter is adapted to transmit a first sensing signal in a vertically upward direction. After the first signal receiver receives the first sensing signal for the first time, it outputs a carrier signal to the main control chip U1 to control the lid to perform the opening action until it switches to the open state.

[0036] The second sensing module includes a second signal transmitter and a second signal receiver. When the lid is open, the second signal transmitter emits a second sensing signal towards the front of the bucket body, wherein:

[0037] After the second signal receiver receives the second sensing signal for the first time, it outputs a carrier signal to the main control chip U1 to control the lid to remain open.

[0038] The second signal receiver performs a timing action after receiving the second sensing signal each time. If the second signal receiver does not receive the next second sensing signal within a preset time interval, it outputs a carrier signal to the main control chip U1 to control the bucket lid to perform the closing action.

[0039] Preferably, the device also includes an opening / closing detection device, which is suitable for detecting whether the opening and closing actions of the lid are performed correctly. The position information output by the opening / closing detection device is used by the main control chip U1 to determine the state of the lid.

[0040] The opening and closing detection device includes a first Hall element, a second Hall element, and two sensing magnets. One of the sensing magnets is adapted to rotate synchronously with the bucket lid. The first Hall element is disposed on the rotation path of the sensing magnet, the second Hall element is disposed at the front end of the bucket lid, and the corresponding sensing magnet is disposed on the upper edge of the bucket body.

[0041] When the first Hall element rotates to align with the sensing magnet, the main control chip U1 is adapted to receive the open cover signal and then control the drive device to stop working; when the second Hall element rotates to align with the sensing magnet, the main control chip U1 is adapted to receive the close cover signal and then control the drive device to stop working.

[0042] Preferably, the driving device includes a motor, a drive shaft, and a transmission gear set. The motor drives the drive shaft to rotate through the transmission gear set. The drive shaft is mounted to the rear side of the bucket lid and is pivotally connected to the bucket body. The first Hall element and the second Hall element are synchronously driven with the drive shaft.

[0043] This utility model also provides a smart trash can, including

[0044] The barrel body has a rim.

[0045] The bucket lid has a closed state (closing the bucket opening) and an open state (exposing the bucket opening).

[0046] A drive device adapted to drive the opening and closing of the bucket lid.

[0047] The foot pedal trigger module includes a foot pedal and a limit switch. The foot pedal can rotate relative to the bucket body to trigger the limit switch, which in turn generates a foot pedal open cover signal, or the limit switch generates a foot pedal open cover signal and a foot pedal close cover signal.

[0048] An infrared trigger module includes a sensing module adapted to generate an infrared lid-closing signal. The sensing area of ​​the sensing module is the front area of ​​the bucket body, and the sensing module is disposed on the lower surface of the bucket lid.

[0049] The main control chip U1 has the following configuration:

[0050] When the main control chip U1 receives the foot pedal opening signal, it is adapted to control the drive device to open the bucket lid to the open state.

[0051] The main control chip U1 responds only to the infrared lid-closing signal to control the drive device to close the lid to the closed state, or, when the main control chip U1 receives either the foot-operated lid-closing signal or the infrared lid-closing signal, it controls the drive device to close the lid to the closed state.

[0052] The beneficial effects of this utility model are:

[0053] 1. By setting the transmission rod to rotate synchronously with the foot pedal, the movement of the foot pedal can be accurately transmitted to the limit switch, making it less prone to malfunction due to slight external vibrations or accidental touches. The design of the elastic spring and contact post working together to trigger the switch provides a certain buffer and a clear travel distance during the triggering process, enabling accurate control of the switch's on and off states.

[0054] Second, the foot-operated trigger module allows users to easily open and close the trash can lid simply by pressing the foot pedal when their hands are busy. This avoids the inconvenience of manually touching the lid, making it especially suitable for scenarios where hands are occupied or operation is inconvenient, greatly improving ease of use. The main control chip only responds to foot-operated open and close signals to control the lid's opening and closing. This clear control logic makes operation simpler and more direct, with a fast system response. Users do not need to memorize complex operating methods; they can accurately control the lid's state simply by pressing the foot pedal, lowering the barrier to entry.

[0055] Third, the foot-operated trigger module and the infrared trigger module operate independently, allowing users to flexibly choose the triggering method according to their actual needs. The foot-operated trigger is suitable for situations where both hands are limited, allowing users to open and close the lid by stepping on the foot pedal, avoiding hand contact with the trash can and promoting hygiene. The infrared trigger automatically opens the lid when the user approaches and automatically closes it when the user leaves, offering convenient and efficient operation. Furthermore, the two triggering methods are controlled independently, responding only to the same closing signal, avoiding multi-mode conflicts, effectively reducing false triggering, and improving reliability. Attached Figure Description

[0056] Figure 1 This is a structural schematic diagram of an intelligent trash can provided by this utility model.

[0057] Figure 2 An explosion diagram of an intelligent trash can provided by this utility model.

[0058] Figure 3 A schematic diagram of the structure of the barrel provided by this utility model.

[0059] Figure 4 for Figure 3 An enlarged schematic diagram of region A in the middle.

[0060] Figure 5An explosion diagram of the foot-operated triggering device provided by this utility model.

[0061] Figure 6 for Figure 3 Enlarged schematic diagram of region B in the middle.

[0062] Figure 7 The first control circuit diagram provided for this utility model.

[0063] Figure 8 The KEYIN circuit diagram provided for this utility model

[0064] Figure 9 An exploded view of the bucket lid provided by this utility model.

[0065] Figure 10 A cross-sectional view and a partially enlarged view of the bucket lid provided by this utility model.

[0066] Figure 11 An exploded view of the driving device provided by this utility model.

[0067] Figure 12 A cross-sectional schematic diagram of the driving device provided by this utility model.

[0068] Figure 13 A schematic diagram of the Hall element control circuit board provided by the present invention.

[0069] In the diagram: 100, barrel body; 101, barrel opening; 200, barrel lid; 201, upper lid; 202, lower lid; 203, support layer. 301, first sensing module; 311, first signal transmitter; 312, first signal receiver; 313, upper lid indicator light; 302, second sensing module; 321, second signal transmitter; 322, second signal receiver; 323, lower lid indicator light; 411, first Hall element; 412, second Hall element; 413, sensing magnet; 414, Hall element control circuit board; 500, drive device; 501, motor; 502, drive shaft; 503. Transmission gear set; 504. Drive housing; 505. Transmission component; 601. Foot pedal; 611. First pedal; 612. Second pedal; 613. Transmission rod; 614. Return spring; 602. Limit switch; 621. Switch body; 622. Elastic spring; 623. Switch housing; 624. Contact post; 603. Trigger; 631. Mounting bracket; 632. Trigger part; 633. Elastic support part; 604. First control circuit board. Detailed Implementation

[0070] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0071] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0072] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0073] like Figure 1-13The smart trash can includes a body 100 with a mouth 101, a lid 200, a drive device 500 adapted to open and close the lid 200, a foot-operated trigger module, an infrared trigger module, a main control chip U1, an opening / closing detection device, and an indicator module. The lid 200 includes a closed state (closing the mouth 101) and an open state (exposing the mouth 101). The lid 200 can be rotated 90° to switch between the closed and open states. The foot-operated trigger module includes a mechanically connected foot pedal 601, a limit switch 602, and a first control circuit board 604. The foot pedal 601 can rotate relative to the body 100 to trigger the limit switch 602, which in turn generates a foot-operated open signal and a foot-operated close signal. The infrared triggering module includes a first sensing module 301 and a second sensing module 302 adapted to generate an infrared opening signal. The first sensing module 301 is disposed on the outer surface of the lid 200, and the second sensing module 302 is disposed on the inner surface of the lid 200. The first sensing module 301 and the second sensing module 302 are positioned opposite each other at the center of the lid 200, enabling better all-around sensing and monitoring centered on the lid 200. The lid 200 includes an upper cover 201, a support layer 203, and a lower cover 202 arranged sequentially from top to bottom. The first sensing module 301 is mounted on the support layer 203, and the second sensing module 302 is mounted on the lower cover. The opening / closing detection device is adapted to detect whether the opening and closing actions of the lid 200 are performed correctly. The position information output by the opening / closing detection device is used by the main control chip U1 to determine the state of the lid 200. The indicator module includes an upper cover indicator light 313 disposed on the upper surface of the lid 200, a lower cover indicator light 323 disposed on the lower surface of the lid 200, and a foot pedal indicator light (not shown in the figure) disposed on the foot pedal 601. The upper cover indicator light 313 and the foot pedal indicator light are connected to the same pin of the main control chip U1. The main control chip U1 is configured to: when the main control chip U1 receives a foot pedal opening signal, it is adapted to control the drive device 500 to open the lid 200 to the open state, and it only responds to the foot pedal closing signal to control the drive device 500 to close the lid 200 to the closed state; when the main control chip U1 receives an infrared opening signal, it is adapted to control the drive device 500 to open the lid 200 to the open state, and it only responds to the infrared closing signal to control the drive device 500 to close the lid 200 to the closed state.

[0074] In this embodiment, the foot pedal 601 includes a first pedal 611, a second pedal 612, and a return spring 614. The first pedal 611 is connected to the front side of the barrel 200, the second pedal 612 is pivotally connected to the first pedal 611, the transmission rod 613 is integrally connected to the second pedal 612, and the return spring 614 is adapted to drive the second pedal 612 to return to its original position, ensuring the continuity of the next operation. The limit switch 602 includes a switch body 621 and an elastic spring 622. One end of the elastic spring 622 is connected to the switch body 621 and is inclined downward. The switch body 621 includes a switch housing 623, a stationary contact and a moving contact disposed in the switch housing 623, a contact post 624 adapted to reciprocate relative to the switch housing 623 along the height direction of the barrel 100, and an elastic element adapted to drive the contact post 624 to reset. The contact post 624 extends out of the switch housing 623 and contacts the elastic spring 622. The contact post 624 is adapted to drive the moving contact and the stationary contact to make contact and conduct. The distance between the stationary contact and the moving contact defines the trigger stroke of the limit switch 602. The triggering part 632 is adapted to trigger the limit switch 602 under the drive of the transmission rod 613, that is, to make contact and conduct the connection between the stationary contact and the moving contact. The elastic support 633 is adapted to drive the trigger 632 to reset, that is, the trigger 632 disengages from the limit switch 602, ensuring the stability and accuracy of the limit switch 602's triggering and improving the user's operating experience. In this embodiment, the first control circuit board 604 includes a first control circuit, which includes the limit switch 602 and the KEYIN line. The detection pin 4 of the main control chip U1 is configured in open-drain input mode to detect the external KEYIN signal status. The KEYIN line is adapted to condition the high-level signal output by the limit switch 602 and input it to the main control chip U1. The limit switch 602 includes three pins: pin 1 is floating, pin 2 is connected to the input terminal of the KEYIN line, the output terminal of the KEYIN line is connected to the main control chip U1 through pin 4, and pin 3 is connected to the positive power supply VCC. When the limit switch 602 is not triggered, pins 2 and 3 are disconnected. When the limit switch 602 is triggered, pins 2 and 3 are shorted, and the high-level signal of the positive power supply VCC is conducted through pin 3 to pin 2, and then transmitted to the KEYIN line. After receiving the signal change of the KEYIN line through pin 4, the main control chip U1 outputs a control signal to the drive device 500 to drive the bucket lid to open or close. On the other hand, it outputs a control signal to the LED-line through pin 3 to control the start and stop of the cover indicator 313 and the foot pedal indicator.

[0075] In this embodiment, the KEY_IN circuit includes a current-limiting resistor R13, a pull-down resistor R12, and a filter capacitor C17. The current-limiting resistor R13 prevents excessive current from flowing into the KEY_IN circuit. One end of the current-limiting resistor R13 is connected to the main control chip, and the other end is connected to a limit switch. The resistance of the current-limiting resistor R13 is 1KΩ. The pull-down resistor R12 pulls the KEY_IN circuit level down to ground when there is no external high-level signal input. One end of the pull-down resistor R12 is connected to the main control chip, and the other end is grounded. The resistance of the pull-down resistor R12 is 20KΩ. The filter capacitor C17 filters out high-frequency noise signals on the KEY_IN circuit, making the input signal cleaner and more stable. One end of the filter capacitor C17 is connected to the input terminal of the KEY_IN circuit, and the other end is grounded. The open-drain input mode, combined with the pull-down resistor R12, ensures that the pin level remains stable at a low level when there is no valid input, reducing external interference and ensuring accurate signal detection. Specifically, when the foot switch is not pressed, the KEY_IN line is pulled low due to the pull-down resistor R12, resulting in a low-level signal input to the microcontroller pin; this is the stable initial state. When the foot switch is pressed, the limit switch outputs a high level, which is transmitted to the KEY_IN line through the current-limiting resistor R13, causing the microcontroller pin to detect a high level. In open-drain input mode, the pin can effectively receive changes in external high and low level signals, accurately obtaining the foot switch status.

[0076] In this embodiment, the upper cover indicator light 313 is arranged around the first sensing module 301, and the lower cover indicator light 323 is arranged around the second sensing module 302. The upper cover indicator light 313 and the foot pedal indicator light illuminate upon the generation of the foot pedal opening signal and remain illuminated. They turn off after the lid 200 responds to the foot pedal closing signal and switches to the closed state, enhancing the continuity of operation feedback. The upper cover indicator light 313 and the foot pedal indicator light illuminate upon the generation of the infrared opening signal and turn off after the opening action is completed. The lower cover indicator light 323 illuminates upon the completion of the opening action and remains illuminated. The lower cover indicator light 323 is adapted to turn off after the opening action is completed, adapting to the instantaneous feedback requirements of contactless operation.

[0077] In this embodiment, the first sensing module 301 includes a first signal transmitter 311 and a first signal receiver 312. In the closed state, the first signal transmitter 311 is adapted to emit a first sensing signal in a vertically upward direction. The emission direction of the first sensing signal is highly matched with the hand movement trajectory (from top to bottom) when a user naturally disposes of garbage, while avoiding ground reflection interference. The sensing distance of the first sensing module 301 is 40cm. After receiving the first sensing signal for the first time, the first signal receiver 312 outputs an infrared opening signal to the main control chip U1 to control the lid 200 to perform an opening action until it switches to the open state. The second sensing module 302 includes a second signal transmitter 321 and a second signal receiver 322. In the open state, the second signal transmitter 321 emits a second sensing signal towards the front of the bin 100. The sensing distance of the second sensing module 302 is 150cm. After receiving the first sensing signal for the first time, the first signal receiver 312 outputs an infrared closing signal to the main control chip U1 to control the lid 200 to perform an opening action until it switches to the open state. When the lid is open, after the second signal receiver 322 receives the second sensing signal for the first time, it outputs an infrared lid-opening signal to the main control chip U1 to control the lid 200 to remain open. The second signal receiver 322 performs a timing action after each reception of the second sensing signal. If the second signal receiver 322 does not receive the next second sensing signal within a preset time interval, it outputs an infrared lid-closing signal to the main control chip U1 to control the lid 200 to close. The preset time interval is 2 seconds.

[0078] In this embodiment, the opening / closing detection device includes a first Hall element 411, a second Hall element 412, and two sensing magnets 413. One of the sensing magnets 413 is adapted to rotate synchronously with the lid 200. The first Hall element 411 is disposed on the rotation path of the sensing magnet 413. The second Hall element 412 is disposed at the front end of the lid 200, and the corresponding sensing magnet 413 is disposed on the upper edge of the bucket body 100. When the first Hall element 411 rotates to align with the sensing magnet 413, the main control chip U1 is adapted to receive the open-lid positioning signal, thereby controlling the drive device 500 to stop working. When the second Hall element 412 rotates to align with the sensing magnet 413, the main control chip U1 is adapted to receive the closed-lid positioning signal, thereby controlling the drive device 500 to stop working. This avoids positioning offset caused by mechanical wear, ensures that the lid 200 is in the correct state, and avoids problems such as odor diffusion and garbage overflow caused by the lid 200 not closing properly, thereby enhancing the safety and reliability of the product.

[0079] In this embodiment, the driving device includes a driving housing 504, a motor 501 installed within the driving housing 504, a driving shaft 502, a transmission gear set 503, and a transmission component 505 suitable for connecting the driving shaft 502 and the lower cover 202. The motor 501 drives the driving shaft 502 to rotate via the transmission gear set 503. The driving shaft 502 is mounted to the rear side of the lid 200 and pivotally connected to the barrel body 100. This design provides high transmission efficiency and stable operation, ensuring smooth opening and closing of the lid 200 without impact. The induction magnet 413 is synchronously driven with the driving shaft 502, facilitating accurate detection of the lid 200's position. The induction magnet 413 is located at one axial end of the driving shaft 502, with the first Hall element 411 and the second Hall element 412 facing the induction magnet 413.

[0080] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A smart trash can, characterized in that, include The barrel body has a rim. The bucket lid has a closed state (closing the bucket opening) and an open state (exposing the bucket opening). A drive device adapted to drive the opening and closing of the bucket lid. A foot pedal trigger module includes a foot pedal and a limit switch. The foot pedal can rotate relative to the bucket body to trigger the limit switch, which in turn generates a foot pedal open cover signal and a foot pedal close cover signal. The main control chip U1 has the following configuration: When the main control chip U1 receives the foot-operated lid opening signal, it is adapted to control the drive device to open the lid to the open state, and it responds to the foot-operated lid closing signal to control the drive device to close the lid to the closed state.

2. The intelligent trash can according to claim 1, characterized in that, The foot pedal trigger module includes A first control circuit board is adapted to electrically connect the limit switch and the main control chip U1; A transmission rod that rotates synchronously with the foot pedal; The limit switch is located on the movement path of the transmission rod, and the transmission rod directly triggers the limit switch; or, a trigger is provided on the movement path of the transmission rod, and the transmission rod triggers the limit switch through the trigger.

3. The intelligent trash can according to claim 2, characterized in that, The foot pedal includes a first pedal, a second pedal, and a return spring. The first pedal is connected to the front side of the barrel body, the second pedal is pivotally connected to the first pedal, the transmission rod is integrally formed or fixedly connected to the second pedal, and the return spring is adapted to drive the second pedal to return to its original position. The limit switch includes a switch body and an elastic spring. One end of the elastic spring is connected to the switch body and is inclined downward. The switch body includes a switch housing, a stationary contact and a moving contact disposed in the switch housing, a contact post adapted to reciprocate relative to the switch housing along the height direction of the barrel, and an elastic element adapted to drive the contact post to reset. The contact post extends out of the switch housing and contacts the elastic spring. The contact post is adapted to drive the moving contact and the stationary contact to make contact and conduct. The distance between the stationary contact and the moving contact defines the travel of the limit switch.

4. The intelligent trash can according to claim 3, characterized in that, The trigger includes a mounting bracket, a trigger part, and an elastic support part adapted to mount the trigger part on the mounting bracket. The trigger part is adapted to trigger the limit switch under the drive of the transmission rod, and the elastic support part is adapted to drive the trigger part to reset, that is, the trigger part disengages from the limit switch.

5. A smart trash can according to any one of claims 2-4, characterized in that, The first control circuit board includes a first control circuit, the first control circuit including Limit switch The KEYIN circuit is suitable for conditioning the high-level signal output from the limit switch and then inputting it to the main control chip U1. The limit switch has three pins: pin 1 is left floating, pin 2 is connected to the input of the KEYIN line, the output of the KEYIN line is connected to the main control chip U1 through pin 4, and pin 3 is connected to the positive power supply VCC. When the limit switch is not triggered, pins 2 and 3 are disconnected. When the limit switch is triggered, pins 2 and 3 are shorted. The high-level signal of the positive power supply VCC is conducted through pin 3 to pin 2, and then transmitted to the KEYIN circuit. After receiving the signal change of the KEYIN line through pin 4, the main control chip outputs a control signal to the drive device to drive the bucket lid to open or close.

6. A smart trash can according to claim 5, characterized in that, The detection pin 4 of the main control chip U1 is configured in open-drain input mode to detect the status of the external KEYIN signal. The KEYIN line includes... The current-limiting resistor R13 is suitable for preventing excessive current from flowing into the KEY_IN line. One end of the current-limiting resistor R13 is connected to the main control chip, and the other end of the current-limiting resistor R13 is connected to the limit switch. Pull-down resistor R12 is adapted to pull the level of the KEY_IN line low to ground level when there is no external high-level signal input. One end of pull-down resistor R12 is connected to the main control chip, and the other end of pull-down resistor R12 is grounded.

7. A smart trash can according to claim 1, characterized in that, It also includes an infrared triggering module, which includes a first sensing module adapted to generate an infrared opening signal and a second sensing module adapted to generate an infrared closing signal. The first sensing module is disposed on the upper surface of the lid, and the second sensing module is disposed on the lower surface of the lid. The first sensing module and the second sensing module are disposed opposite to each other in the center of the lid. The sensing area of ​​the first sensing module is the space above the lid, and the sensing area of ​​the second sensing module is the front area of ​​the bucket. The main control chip U1 is configured as follows: When the main control chip U1 receives an infrared lid opening signal, it is adapted to control the drive device to open the lid to the open state, and it only responds to the infrared lid closing signal to control the drive device to close the lid to the closed state.

8. A smart trash can according to claim 7, characterized in that, It also includes an indicator module, which includes a foot pedal indicator light disposed on the foot pedal. The foot pedal indicator light is connected to one pin of the main control chip. The foot pedal indicator light is lit up and remains lit when the foot pedal opening signal is generated. The foot pedal indicator light is turned off after the bucket lid responds to the foot pedal closing signal and switches to the closed state.

9. A smart trash can according to claim 1, characterized in that, It also includes an opening and closing detection device, which is suitable for detecting whether the opening and closing actions of the lid are performed correctly. The position information output by the opening and closing detection device is used by the main control chip U1 to determine the state of the lid. The opening and closing detection device includes a first Hall element, a second Hall element, and two sensing magnets. One of the sensing magnets is adapted to rotate synchronously with the bucket lid. The first Hall element is disposed on the rotation path of the sensing magnet, the second Hall element is disposed at the front end of the bucket lid, and the corresponding sensing magnet is disposed on the upper edge of the bucket body. When the first Hall element rotates to align with the sensing magnet, the main control chip U1 is adapted to receive the open cover signal and then control the drive device to stop working; when the second Hall element rotates to align with the sensing magnet, the main control chip U1 is adapted to receive the close cover signal and then control the drive device to stop working.

10. A smart trash can, characterized in that, include The barrel body has a rim. The bucket lid has a closed state (closing the bucket opening) and an open state (exposing the bucket opening). A drive device adapted to drive the opening and closing of the bucket lid. The foot pedal trigger module includes a foot pedal and a limit switch. The foot pedal can rotate relative to the bucket body to trigger the limit switch, which in turn generates a foot pedal open cover signal, or the limit switch generates a foot pedal open cover signal and a foot pedal close cover signal. An infrared trigger module includes a sensing module adapted to generate an infrared lid-closing signal. The sensing area of ​​the sensing module is the front area of ​​the bucket body, and the sensing module is disposed on the lower surface of the bucket lid. The main control chip U1 has the following configuration: When the main control chip U1 receives the foot pedal opening signal, it is adapted to control the drive device to open the bucket lid to the open state. The main control chip U1 responds only to the infrared lid-closing signal to control the drive device to close the lid to the closed state, or, when the main control chip U1 receives either the foot-operated lid-closing signal or the infrared lid-closing signal, it controls the drive device to close the lid to the closed state.

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