Automatic cover opening and closing device

Abstract

The utility model discloses an automatic cover opening and closing device which is an independent system separated from a container. The device mainly comprises a rack, a driving system and a control system. The rack is relatively fixed and is used for mounting the driving system and the control system, and optional materials are metal, plastic, glass fiber reinforced plastic and the like; steel pipes are recommended to be used, and stainless steel materials are preferably used. The driving system mainly comprises a power supply, a power conversion circuit, a fixed seat, a power machine, a transmission piece, a hanging piece and the like. 220V mains supply can be used as a power supply, a solar power generation panel can be combined with a storage battery, and a motor or an electric push rod can be used as a power machine. A gear motor is preferably used.

Description

Technical Field

[0001] The invention relates to an automatic cover opening and closing device for a flip-up cover container, in particular to an automatic cover opening and closing device for a common garbage can. Background Art

[0002] Garbage classification in my country has been vigorously promoted. Ordinary trash cans are a typical flip-top container. One of the problems encountered in use is that you need to open the lid before throwing garbage into the trash can. Especially in the process of dumping kitchen waste: "Open the lid of the trash can → flip the plastic bag by hand to dump the garbage → close the lid → open another trash can lid → throw the plastic bag in → close the lid." Obviously, such operations greatly increase the chance of cross-infection of bacteria and viruses; psychologically, it also causes discomfort. In practice, we can see that in most cases, the lid of the trash can is in a normally open state, which is obviously contrary to the original intention of maintaining environmental hygiene. To solve the problem of opening the lid of the trash can, we can see many solutions; patent application number: "202110352725.7, a trash can that is easy to open"; patent application number: "202011349181.0 A non-contact intelligent lid-opening classified trash can"; authorized patent: "202022337555.9 A smart trash can for garbage classification", etc. These solutions all achieve contactless opening by setting up mechanisms or automatic execution systems on the trash cans, and some of them also achieve contactless opening. However, all these solutions ignore an important issue. Trash cans need to be frequently transported, cleaned and disinfected; The community where the inventor is located is fortunate to become a pilot community for garbage sorting. The trash cans in the community are taken away and dumped by the sanitation department every day, and then transported back to the community for use after cleaning and disinfection. This process is essential to ensure the health of the people. Obviously, many opening solutions that are integrated with trash cans are not suitable for the application scenarios of trash can transportation and processing. It is very easy to be damaged during transportation, and the electrical appliances it carries are not suitable for cleaning and disinfection. And it also greatly increases the price of the trash can itself. My utility model "A trash can opening device" patent number: 202123024894.2 proposes a practical solution and has been authorized by the State Intellectual Property Office. However, it is also found that there are many areas that need to be improved during use. For example, how to use it in places where there is no mains power supply? The use of a heavy hammer cannot accurately locate the position of the trash can lid. Summary of the invention

[0003] According to the actual use of the flip-top container, the present invention designs an independent automatic lid opening and closing device that is separated from the container. The present invention further improves the shortcomings of "a garbage can lid opening device, patent number: 202123024894.2". It will have a positive effect on the promotion of garbage sorting.

[0004] The automatic lid opening and closing device of the present invention is an independent system separated from the container; it is mainly composed of a frame, a driving system and a control system. The frame is relatively fixed and is used to install the driving system and the control system. The optional materials are metal, plastic, fiberglass, etc.; steel pipes are recommended, and stainless steel is preferred.

[0005] The driving system is mainly composed of a power supply, a power conversion circuit, a fixing seat, a power machine, a transmission part and a pendant. The power supply can use 220V mains electricity, and the power conversion circuit converts the power supply into a safe working voltage; a solar panel combined with a battery can also be used, and the power machine can use an electric motor or an electric push rod. It is preferred to use a reduction motor. When a reduction motor is used as a power machine, the driving wheel mounted on the motor shaft is connected to the pendant through a driving belt, and the pendant is connected to the container cover. The motor drives the driving wheel to rotate forward and reversely, so that the driving belt is tightened and relaxed to realize the opening and closing of the container cover. When an electric push rod is used as a power machine, a driving belt connected to one end of the electric push rod can be used to connect to the pendant, and the pendant is connected to the container cover. The reciprocating motion of the electric push rod controls the tightening and loosening of the driving belt to realize the opening and closing of the container cover. Optionally, a connecting rod mechanism is used to replace the driving belt to realize the opening and closing of the container cover.

[0006] The control system is used to control the process of opening and closing the cover. The control system mainly consists of a start switch, a positioning switch, a driving circuit that drives the power machine to reciprocate, etc. The working process of an automatic cover opening and closing device is: when a person or object approaches the container, the start switch is triggered → the power machine starts to rotate forward → the container cover is opened → the container cover reaches the preset position and triggers the positioning switch → the power machine stops → the person or object leaves the start switch and releases the trigger → the power machine moves in the opposite direction → the container cover is closed → the power machine stops → a cycle ends.

[0007] The circuits involved in the drive system and control system can be made with discrete components; they can also be made with discrete components + IC circuits. Optimally, the control system can use PLC + peripheral components. Optimally, the control system uses single-board computers + peripheral components.

[0008] The start switch and positioning switch can be selected from contact switches or contactless induction switches according to actual conditions, and contactless induction switches are preferred. The start switch is used to monitor whether there is a person or object approaching, and the positioning switch directly monitors and controls the rising height of the barrel cover, realizing accurate positioning of the opening height. The contactless induction switch uses an induction switch, and the optional ones include far-infrared induction switch, ultrasonic sensor switch, laser ranging switch and radar.

[0009] Furthermore, according to the current situation that most places where trash cans need to be placed do not have mains power supply, solar panels + batteries are specially configured as power supply. Correspondingly, a power supply voltage conversion circuit is configured, which converts the power of the mains or solar batteries into a safe voltage suitable for the power machine requirements to meet the working requirements of the power machine.

[0010] An optimized voice device is set in the electric control box to prompt the classification attributes of each trash can when the lid is opened.

[0011] The control circuit is also equipped with a manual switch, which is mainly used for adjusting the initial state.

[0012] The present invention is based on a single machine and can be increased in any number to form a desired combination as needed. An automatic cover opening and closing device can realize full contactless cover opening and closing operation, and can effectively avoid cross infection caused by opening and closing the cover by hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a three-dimensional view of the trash can lid when it is closed according to embodiment 1 of the present invention.

[0014] Attached Figure 2 It is a three-dimensional view of the trash can with the lid open.

[0015] Attached Figure 3 This is a schematic diagram of the installation of the motor and the drive part. The figure clearly shows the structure of the drive part. The figure omits the columns and the frame part in order to clearly see the connection between the weight and the drive belt.

[0016] Attached Figure 4 and attached Figure 5 It is a schematic diagram of multiple groups of combinations, showing the situation of multiple groups of combinations from two directions.

[0017] As shown in the figure: the various parts are: trash can 1; bucket cover 11; bucket cover handle 12; column 2; column base 21; column positioning 22; start switch 24; positioning switch 25; motor fixing seat 26; rivet 261; cross pipe 27; saddle buckle 271; pendant 3; motor 4; driving wheel 41; screw 42; spring sheet 43; electric control box 5; power switch 51; driving belt 6; heavy hammer 7; main switch 8; solar energy combination 100. Specific implementation plan

[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Of course, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should belong to the scope of protection of the present invention.

[0019] Figure 1 and Figure 2 It is a schematic diagram of the garbage can lid of Example 1 when it is closed and opened. In Example 1, the frame is composed of a column 2 and a column base 21. The lower end of the column 2 is connected to the column base 21, and the column base 21 is fixed to the ground. The positioning 22 is used to determine the placement of the garbage can. The frame is fixed to the ground. The upper end of the column 2 is equipped with a motor fixing seat 26, which is connected to the column 2; the motor 4 is installed on the motor fixing seat 26 using screws 42, and a driving wheel 41 is installed on the shaft of the motor 4.

[0020] From the attached Figure 3 It can be seen from the installation diagram that one end of the driving belt 6 is connected to the hanging member 3; the hanging member 3 will be inserted into the barrel cover handle 12, and the other end of the driving belt 6 is connected to the weight 7 by passing around the driving wheel 41. The weight 7 is located in the tube of the column 2 (the tube is not drawn here). One function of the weight 7 is to balance the torque on the driving wheel 41 and reduce the starting torque and starting current of the motor 4. Another function of the weight 7 is to prevent the driving belt 6 from falling off.

[0021] A solar energy combination 100 is placed on the top of the motor fixing seat 26, and the direction of the solar energy combination 100 can be adjusted according to the on-site installation situation. The electric control box 5 is equipped with a power supply conversion circuit, a storage battery (if solar energy is used), and a power machine driving circuit; the front of the electric control box 5 is equipped with a power switch 51, a positioning switch 25 and a start switch 24. The start switch 24 should be higher than the height when the lid is opened. The start switch 24 and the positioning switch 25 both use ultrasonic sensors, both of which are tilted forward and downward and connected to the circuit in the electric control box 5. The power machine motor 4 of Example 1 uses an ordinary DC reduction motor; other motors such as stepping motors or servo motors can also be used, but corresponding drive circuits must be configured.

[0022] In the first embodiment, the driving wheel 41 is a toothed belt wheel, and the corresponding driving belt 6 is a toothed belt.

[0023] In Example 1, the installation height of the start switch 24 is higher than the height when the barrel cover 11 is opened; the start switch 24 and the positioning switch 25 are installed on the electric control box 5; of course, the positions of the start switch 24 and the positioning switch 25 can also be set according to actual needs.

[0024] The workflow of this embodiment is: "When someone approaches, the start switch 24 is triggered → the motor 4 rotates forward → the drive belt is pulled → the barrel cover 11 is pulled up and opened through the pendant 3 (the weight 7 drops) → when the barrel cover reaches a predetermined height, the positioning switch 25 is triggered → the motor 4 stops → when the person leaves, the start switch 24 is untriggered → the motor 4 rotates in the opposite direction for T1 time (the weight 7 rises) → the barrel cover 11 is closed → the motor 4 stops rotating. One cycle ends"; when the start switch 24 is triggered again, it will enter the next cycle.

[0025] In this embodiment, the start switch 24 uses an ultrasonic sensor. When a person approaches the trash can 1, the start switch 24 is triggered to work; when the person leaves, the start switch 24 is de-triggered; when the start switch 24 is triggered, the driving circuit drives the motor 4 to rotate forward; when the bucket cover reaches a predetermined height, the positioning switch 25 is triggered, and the power supply of the driving motor 4 is directly cut off; when the start switch 24 is de-triggered, the motor 4 rotates in the reverse direction for T1 time and then stops. The determination of T1 time must ensure that the bucket cover can be completely closed after it drops from the high point determined by the positioning switch 25.

[0026] The power conversion circuit, the control and drive circuit and the battery are all placed in the electric control box 5.

[0027] Attached Figure 4 and attached Figure 5 It is a schematic diagram of multiple groups. Generally speaking, the garbage classification commonly used includes kitchen waste, recyclable waste, other waste and hazardous waste; if subdivided, it can be metal waste, plastic waste, paper product waste, etc. The multiple groups only list the first 4 types of combinations. If more are needed, they can be superimposed as required. The multiple groups can use a larger power solar combination 100 to meet the requirements of one belt and multiple. The lines in the electric control box are connected to each other through a cross pipe 27.

[0028] In each electric control box 5 , a voice prompt device is provided, which can provide voice classification prompts corresponding to the classification categories of the trash cans in front of each electric control box 5 .

[0029] It is common sense that various switches, motors, etc. in the embodiment are connected to the drive circuit in the electric control box 5 using wires, which are not shown to keep the picture clear.

[0030] The above is just a simple discussion, and the above ideas can be expanded in many aspects. For example, adding cameras to monitor whether the garbage put in meets the requirements, etc. Of course, the use of this invention is not limited to the automatic opening and closing of the garbage can, and other similar working scenarios can be used.

Claims

1. An automatic cover opening and closing device, characterized in that: An independent automatic cover opening and closing device for flip-top containers separated from the container, the structure of which mainly comprises a frame consisting of a fixed column (2) and a column base (21), a drive system and a control system installed on the frame; an electric control box (5) is installed on the frame, a drive circuit, a power conversion circuit and batteries The electric control box (5) is placed in the electric control box; a start switch (24) and a positioning switch (25) are arranged in front of the electric control box; a power conversion circuit converts the power supply into a safe working voltage; the drive system mainly consists of a power supply, a power conversion circuit, a power machine capable of reciprocating motion, a transmission member and a hanging member (3); a motor fixing seat (26) is arranged at the upper end of the column (2), a motor (4) is mounted on the seat, and a driving wheel (41) is mounted on the shaft of the motor (4); the control system mainly consists of a start switch (24), a driving circuit for driving the power machine to reciprocate, and a positioning switch (25) for controlling the opening position of the container cover; the start switch (24) and the positioning switch (25) are both non-contact induction switches, and the driving circuit uses a single-board computer control circuit.

2. The automatic cover opening and closing device according to claim 1, characterized in that: A solar energy combination (100) + a storage battery is used as a power source.

3. The automatic cover opening and closing device according to claim 1, characterized in that: Equipped with a conversion circuit that converts 220V mains power and solar power into a safe working voltage.

4. The automatic cover opening and closing device according to claim 1, characterized in that: The power machine is an electric motor (4), which is mounted on a motor fixing seat (26) at the top of the column (2); a driving wheel (41) is mounted on the electric motor (4); a driving belt (6) passes around the driving wheel (41) and is connected to the hanging member (3) at one end, and is connected to the weight (7) at the other end.

5. The automatic cover opening and closing device according to claim 1, characterized in that: A voice prompt is provided in the electric control box (5).

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