Anti-pinch electric cover opening device of garbage can

Abstract

The application provides an anti-pinch electric cover opening device of a garbage can, which comprises a hollow box body, a motor, a support shaft, a cover opening rod, a switch module and a can hanging mechanism, wherein the switch module is used for controlling the forward rotation or reverse rotation of the motor, and the cover opening rod is used for driving the opening and closing of a common garbage can cover, characterized in that the support shaft is arranged in the box body and crosses the two sides of the box body, the hollow box body is provided with the motor and a connecting mechanism driven by the motor, the connecting mechanism is connected with the support shaft, the support shaft is connected with the cover opening rod, a one-way transmission mechanism is arranged at the connecting position, the other end of the cover opening rod is connected with the can hanging mechanism and a can cover handle. When the cover is opened, the motor drives the support shaft connecting rod to rotate, drives the cover opening rod to move upward, if the cover opening process is blocked, the can hanging mechanism separates the cover opening rod from the can cover. When the cover is closed, the motor drives the connecting rod support shaft to rotate reversely, the cover opening rod moves downward with the body and the can cover gravity, and personnel injury or equipment damage is avoided. The device is used at a garbage throwing point, effectively increases the safety and reliability of the equipment, and is beneficial to the implementation of garbage classification work.

Description

Technical Field

[0001] This invention relates to an anti-pinch electric lid opening device for trash cans, belonging to the field of environmental protection equipment technology. Background Technology

[0002] With the improvement of living standards and the continuous advancement of technology, the amount of waste generated by humans each year is increasing year by year. In some areas with better waste management, most waste is treated harmlessly through sanitary landfill, incineration, composting, and other methods. However, in many other places, waste is often simply dumped or landfilled, leading to the spread of foul odors and pollution of soil and groundwater. The cost of harmless waste treatment is very high. People consume large amounts of resources, produce on a large scale, consume in large quantities, and in turn produce large amounts of waste. If this large amount of waste is not managed, the consequences will be unimaginable.

[0003] A significant part of waste sorting and reduction involves separating kitchen waste. The most common disposal points in residential communities are for kitchen waste and other waste. To improve the quality of the living environment, many places require that garbage bins be closed after disposal. Because kitchen waste bins often have a lot of oil residue, residents are reluctant to open them by hand for fear of getting their hands dirty. Therefore, there is a large market demand for automatic lid-opening devices. Since users are numerous households, safety is paramount. Therefore, we have invented an anti-pinch electric garbage bin lid-opening device that facilitates front-end waste sorting, improves the resource and economic value of waste, and strives to make the most of resources.

[0004] Currently, many companies are developing electric trash can opening devices. However, some trash can opening devices on the market have built-in lids, while others are connected to the handle via a flexible cable. Neither of these devices effectively solves the problem of personnel being injured or large pieces of trash overflowing and damaging the equipment when the lid is not completely removed during automatic closing. This seriously interferes with the normal operation of waste sorting and hinders its implementation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an anti-pinch electric trash can opening device. When using this device to open the trash can, it can effectively prevent injuries caused by personnel not completely leaving the trash can when closing the lid, or damage to the equipment caused by large pieces of trash overflowing the trash can, thus facilitating the normal operation of waste sorting.

[0006] The technical solution adopted by this invention to solve its technical problem is: an anti-pinch electric garbage can opening device, comprising at least a hollow box, a motor, a support shaft, an opening rod, a switch module, and a bin-hanging mechanism. The switch module controls the forward or reverse rotation of the motor, and the opening rod drives the opening and closing of a standard garbage can lid. The supporting shaft is located within the box, traversing both sides. The hollow box contains a motor and a motor-driven connecting mechanism connected to the support shaft. The support shaft is connected to the opening rod, and a one-way transmission mechanism is provided at the connection point. The other end of the opening rod connects to the bin-hanging mechanism and the lid handle. When opening the lid, the motor pulls the support shaft connecting rod to rotate, causing the opening rod to move upwards. If the opening process is obstructed, the bin-hanging mechanism separates the opening rod from the lid. When closing the lid, the motor pushes the connecting rod and support shaft to rotate in the opposite direction, and the opening rod moves downwards with the weight of the body and the lid, preventing injury to personnel or damage to the equipment.

[0007] An anti-pinch electric lid-opening device for a trash can includes at least a hollow box, a support shaft located on the upper part of the box, and a lid-opening rod on the shaft. The device is characterized in that: a support shaft extends horizontally through both sides of the box at the upper part of the box, and a connecting rod is located in the middle of the support shaft; a motor and a motor-driven connecting mechanism are located inside the box, with one end of the connecting mechanism connected to the support shaft connecting rod; the support shaft is connected to the lid-opening rod, and a one-way transmission mechanism is provided at the connection point. The one-way transmission mechanism consists of a cylindrical tube with an inner diameter larger than the outer diameter of the support shaft, vertically connected to the top of the lid-opening rod. The cylindrical tube is fitted onto the support shaft, and a groove is provided on the side of the cylindrical tube, the length of which is no more than 1 / 4 of the circumference of the cylindrical tube. A pin is provided on the support shaft and embedded in the groove. The lid-opening rod is fixed to the support shaft and rotates freely within the support shaft pin along the sliding groove. The angle of free rotation is less than or equal to 90 degrees. The other end of the lid-opening rod is connected to the bucket-hanging mechanism and the bucket handle. The bucket-hanging mechanism is provided at the connection point. The bucket-hanging mechanism has a cylindrical interlayer at the top of the lid-opening rod. The inner layer of the cylindrical tube is fixed to the lid-opening rod, and the outer layer of the cylindrical tube is fixed to the bucket hook. A torsion spring is provided in the interlayer. One end of the spring is fixed to the inner layer of the cylindrical tube, and the other end is fixed to the outer layer of the cylindrical tube. A sliding groove is provided on the outer layer of the cylindrical tube, and a pin is provided on the inner layer of the cylindrical tube to limit the torsion spring. When opening the lid, the motor pulls the support shaft connecting rod to rotate, and the support shaft pin is at the end of the sliding groove, driving the lid-opening rod to move upward. When closing the lid, the motor pushes the connecting rod support shaft to rotate in the opposite direction, and the support shaft pin rotates to the other end of the lid-opening rod sliding groove. The lid-opening rod moves downward with the weight of the body and the bucket lid.

[0008] A further improvement to the present invention is that a one-way transmission mechanism is provided at the connection between the support shaft and the cover-opening rod. The top of the cover-opening rod is vertically connected to a round tube with an inner diameter larger than the outer diameter of the support shaft. The round tube is fitted onto the support shaft. A groove is provided on the side of the round tube. The length of the groove is no more than 1 / 4 of the circumference of the round tube. A pin is provided on the support shaft, which is embedded in the groove and fixed on the support shaft. The cover-opening rod can rotate freely between the pin on the support shaft within the range of the groove. The angle of free rotation is less than or equal to 90 degrees.

[0009] The connection between the lid-opening rod and the trash can lid is equipped with a bin-hanging mechanism. This mechanism consists of a cylindrical tube interlayer at the top of the lid-opening rod. The inner layer of the tube is fixed to the lid-opening rod, while the outer layer is fixed to the bin-hanging hook. A torsion spring is installed within the interlayer, with one end fixed to the inner tube and the other end to the outer tube. A groove is provided on the outer tube, and a pin is provided on the inner tube to limit the torsion spring's movement. When the lid is blocked or pressed during opening, if the weight exceeds the pulling force required to open the lid, the torsion spring on the lid-opening rod releases, causing the lid-opening hook to rotate downwards and disengage from the bin handle. This bin-hanging mechanism also allows staff to easily replace the trash can during collection.

[0010] As can be seen from the technical solution of this invention, a one-way transmission mechanism is provided at the support shaft and the cover-opening rod. The top of the cover-opening rod is vertically connected to a circular tube with an inner diameter larger than the outer diameter of the support shaft. The circular tube is fitted onto the support shaft, and a groove is provided on the side of the circular tube. The length of the groove is no more than 1 / 4 of the circumference of the circular tube. A pin is provided on the support shaft, which is embedded in the groove and fixed to the support shaft. The cover-opening rod can freely rotate between the pin on the support shaft within the range of the groove. The angle of free rotation is less than or equal to 90 degrees. When the motor starts, the motor pulls the connecting rod, and the connecting rod drives the support shaft to rotate. The latch, located at the lower edge of the chute, moves the opening lever upwards to open the bin lid. When the disposal time arrives, the motor reverses direction, causing the latch to move from the lower edge to the upper edge of the chute. The motor's operation does not cause the opening lever to move downwards; instead, it idles within the chute. However, because the angle is less than or equal to 90 degrees, the opening lever and bin lid will move downwards due to gravity. Therefore, closing the bin lid will not cause safety accidents or equipment damage if someone is still there or the bin is overflowing; the lid can simply be opened manually. This design also has the advantage of allowing multiple opening levers to open multiple bins. Each bin lid can be opened individually without interference. This ensures that residents at the disposal point can still manually open and dispose of their garbage even when the power is off, maintaining the original function of the disposal point. Because the other end of the lid-opening lever is equipped with a bin-hanging mechanism, which consists of a cylindrical interlayer at the top of the lid-opening lever. The inner layer of the cylindrical tube is fixed to the lid-opening lever, and the outer layer is fixed to the bin-hanging hook. A torsion spring is installed in the interlayer, with one end fixed to the inner layer and the other end fixed to the outer layer. The outer layer of the cylindrical tube has a sliding groove, and the inner layer has a pin to limit the torsion spring. When the lid is opened, it is blocked or pressed down. When the weight exceeds the pulling force required to open the lid, the spring at the front end of the lid-opening lever is released, and the lid-opening hook rotates downward, disengaging from the bin handle. This also facilitates convenient replacement of garbage bins by sanitation workers. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the bucket lid when it is fully closed.

[0012] Figure 2This is a schematic diagram of the structure of the bucket lid when it is fully open.

[0013] Figure 3 This is a schematic diagram of the bucket-hanging mechanism in this invention.

[0014] In the diagram: 1. Hollow housing, 2. Motor, 3. Support shaft, 4. Connecting rod, 5. One-way transmission mechanism, 5-1. One-way transmission groove, 5-2. One-way transmission pin, 6. Bucket hanging mechanism, 6-1. Outer layer of round tube, 6-2. Inner layer of round tube, 6-3. Limiting groove of bucket hanging mechanism, 6-4. Limiting pin of bucket hanging mechanism, 6-5. Torsion spring, 6-6. Lid opening hook, 7. Lid opening rod, 8. Switch module. Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] according to Figure 1 and Figure 2 As shown, the anti-pinch electric trash can lid-opening device provided in this embodiment includes at least a hollow box body 1, a support shaft 3 located on the upper part of the box body, and a lid-opening rod 7 on the shaft. Its features include: a support shaft 3 extending horizontally through both sides of the box body at the upper part; a connecting rod 4 located in the middle of the support shaft; a motor 2 and a motor-driven connecting mechanism located inside the box body; one end of the connecting mechanism being connected to the connecting rod 4 on the support shaft; the support shaft 3 being connected to the lid-opening rod 7; a one-way transmission mechanism 5 being provided at the connection point; the one-way transmission mechanism 5 is a circular tube with an inner diameter larger than the outer diameter of the support shaft, vertically connected to the top of the lid-opening rod; the circular tube being fitted onto the support shaft 3; a sliding groove 5-1 being provided on the side of the circular tube; the length of the sliding groove 5-1 being no more than 1 / 4 of the circumference of the circular tube; and a pin 5-2 being provided on the support shaft 3, embedded in the sliding groove 5-1 and fixed to the support shaft 3. The opening rod slide 5-1 can rotate freely between the support shaft pin 5-2, with a free rotation angle less than or equal to 90 degrees. The other end of the opening rod 7 is connected to the bucket lid, and a bucket hanging mechanism 6 is provided at the connection. The bucket hanging mechanism has a cylindrical interlayer at the top of the opening rod. The inner layer 6-2 of the cylindrical tube is fixed to the opening rod 7. A torsion spring 6-5 is provided in the interlayer. One end of the spring is fixed to the inner layer 6-2 of the cylindrical tube, and the other end is fixed to the outer layer 6-1 of the cylindrical tube. A slide 6-4 is provided on the outer layer of the cylindrical tube, and a pin 6-3 is provided on the inner layer of the cylindrical tube to limit the torsion spring. The opening hook 6-6 is placed below the bucket handle. When the bucket lid is blocked or pressed, and when the gravity is greater than the pulling force required to open the lid, the torsion spring 6-5 of the bucket hanging mechanism at the front end of the opening rod 7 releases the pressure, and the opening hook 6-6 rotates downward and disengages from the bucket handle.

[0017] The anti-pinch electric lid opening device for trash cans of the present invention can be equipped with a facial recognition system and a weighing device, and can be used in conjunction with a waste sorting management system to complete more detailed waste sorting work.

[0018] The working principle of this embodiment is as follows: When the garbage collector is within a certain range in front of the bin, the facial recognition system, sensor switch, or button receives a signal, the switch closes, the relay connects the motor forward rotation circuit, the motor pulls down the support shaft connecting rod, the support shaft and its pin rotate downwards along the slide, and the pin is below the slide, so the lid opening rod and the bin hanging mechanism move upwards together, and the bin belt is opened. When the garbage collector leaves a certain distance or the timed opening time has expired, the switch opens, the relay connects the motor reverse rotation circuit, the motor pushes up the support shaft connecting rod, and the support shaft and its pin move towards one end of the slide gap. The lid opening rod and the bin hanging mechanism, along with the bin lid, slowly descend under their own weight. In the unidirectional transmission mechanism of this embodiment, the slide and the pin can be installed in opposite directions, that is, the slide is set on the support shaft, and the pin can achieve the same purpose using the lid opening rod.

[0019] The electric garbage can lid opening device of this invention has a simple structure and an attractive appearance, and can be applied to traditional garbage disposal points and under upgraded garbage disposal sheds. The device features a spring structure at the can hanging mechanism. When the lid is pressed or jammed by an object, the lid opens, and the hanging mechanism automatically disengages from the handle, avoiding the risk of damage to the lid or equipment. The one-way transmission mechanism at the connection between the lid opening rod and the support shaft ensures that when closing the lid, if the garbage disposal personnel are not out of the lid's vicinity or if a large object causes the garbage can to overflow, the lid closes due to its own weight. This avoids safety risks for both personnel and equipment, making the device safer and longer-lasting. The simple structure significantly reduces manufacturing costs, resulting in substantial economic benefits and a greatly reduced maintenance rate.

[0020] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An anti-pinch electric lid-opening device for a trash can, comprising a hollow housing, a motor, a support shaft, a lid-opening rod, a switch module, and a bin-hanging mechanism, wherein, The switch module controls the forward or reverse rotation of the motor, and the lid-opening rod drives the opening and closing of the ordinary trash can lid. The feature is that: a support shaft is located within the housing, traversing both sides of the housing; the support shaft has a connecting rod; a motor and a motor-driven connection mechanism are located within the hollow housing, and the connection mechanism is connected to the support shaft and connecting rod; the support shaft is connected to the lid-opening rod, and a one-way transmission mechanism is provided at the connection point. This one-way transmission mechanism consists of the lid-opening rod's top end vertically connected to a circular tube with an inner diameter larger than the outer diameter of the support shaft. The circular tube is fitted onto the support shaft, and a groove is provided on the side of the circular tube. The length of the groove is no greater than 1 / 4 of the circular tube's circumference. A pin is provided on the support shaft, embedded in the groove and fixed to the support shaft. The lid-opening rod rotates freely between the support shaft and the pin within the groove range, with a free rotation angle less than or equal to 90 degrees. The other end of the lid-opening rod is connected to the bucket-hanging mechanism, which is connected to the lid handle. When opening the lid, the motor pulls the support shaft connecting rod to rotate, and the support shaft pin is at the end of the slide groove, causing the lid-opening rod to move upward. When closing the lid, the motor pushes the connecting rod support shaft to rotate in the opposite direction, and the support shaft pin rotates to the other end of the lid-opening rod slide groove, causing the lid-opening rod to move downward with the weight of the body and the lid.

2. The anti-pinch electric lid opening device for a trash can according to claim 1, characterized in that: The pin in the unidirectional transmission mechanism is an iron block, iron sheet, or stud.

3. The anti-pinch electric lid opening device for a trash can according to claim 1, characterized in that: The bucket-hanging mechanism is a cylindrical interlayer set at the top of the lid-opening rod. The inner layer of the cylindrical tube is fixed to the lid-opening rod, and the outer layer of the cylindrical tube is fixed to the bucket-hanging hook. A torsion spring is provided in the interlayer. One end of the spring is fixed to the inner layer of the cylindrical tube, and the other end is fixed to the outer layer of the cylindrical tube. A sliding groove is provided on the outer layer of the cylindrical tube, and a pin is provided on the inner layer of the cylindrical tube to limit the torsion spring.

4. The anti-pinch electric lid opening device for a trash can according to claim 1, characterized in that: The aforementioned lid-opening rod and one-way transmission mechanism, and bucket-hanging mechanism are configured in two or more sets, enabling them to open two or more bucket lids simultaneously.

5. The anti-pinch electric lid opening device for a trash can according to claim 1, characterized in that: The motor is a geared motor.

6. The anti-pinch electric lid opening device for a trash can according to claim 1, characterized in that: The switch module is an inductive switch module used to detect the presence of a human body.

Images