Dustbin top door opening and closing mechanism

Abstract

The utility model relates to the technical field of environmental protection, in particular to a dustbin top door opening and closing mechanism. Comprising a support arranged on one side of a garbage transfer box. A mounting frame longitudinally arranged along the garbage transfer box is fixedly mounted on the bracket, a mounting seat is arranged on the mounting frame, and a longitudinal movement control mechanism is arranged between the mounting seat and the mounting frame; a vertical roll-over stand is arranged above the mounting seat, and a vertical rotation control mechanism is arranged between the roll-over stand and the mounting seat; a connecting bayonet is formed in the turnover frame; the vertical rotation control mechanism can drive the overturning frame to rotate to the position over the garbage transfer box, and a connecting clamping block which protrudes upwards and is arranged on a top door of the garbage transfer box is clamped into the connecting bayonet. And the longitudinal movement control mechanism can drive the turnover frame to move longitudinally, so that the top door of the garbage transfer box moves longitudinally to complete opening and closing operation. The utility model has the characteristics of higher automation degree and better economical efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to an opening and closing mechanism for a top door of a garbage bin. Background Art

[0002] In the process of dumping garbage into the trash bin, it is necessary to use equipment operation to open the feed door on the trash bin, dump the garbage from the feed door into the trash bin, and use the garbage compressor of the equipment to compress the garbage in the trash bin, and finally use equipment operation to close the feed door on the trash bin.

[0003] In existing equipment, a drive cylinder is typically mounted on the waste bin. The hydraulic lines are connected to a ground-mounted hydraulic station via quick connectors to extend and retract the cylinders, thereby opening and closing the bin's feed door. This structural approach presents the following shortcomings: 1. Each bin requires its own door-opening cylinder and piping, which cannot be shared, resulting in a low cost-effectiveness and poor economic efficiency. 2. The engagement and disconnection of the quick connectors is a source of contamination for the hydraulic system, posing a significant threat to cleanliness-critical hydraulic systems. 3. After the waste transfer bin is placed at the workstation, the quick connectors must be manually connected and disconnected each time, resulting in poor automation performance. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to provide a garbage bin top door opening and closing mechanism with a simpler and more reasonable structural design, a higher degree of automation and better economic efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a garbage bin top door opening and closing mechanism, which is characterized by: comprising a bracket arranged on one side of the garbage transfer box; a mounting frame arranged longitudinally along the garbage transfer box is fixedly mounted on the bracket, a mounting seat is provided on the mounting frame, and a longitudinal movement control mechanism is provided between the mounting seat and the mounting frame; a vertical flip frame is provided above the mounting seat, and a vertical rotation control mechanism is provided between the flip frame and the mounting seat; a connecting bayonet is provided on the flip frame; the vertical rotation control mechanism can drive the flip frame to rotate to just above the garbage transfer box, and make the upwardly protruding connecting block on the top door of the garbage transfer box be inserted into the connecting bayonet; and the longitudinal movement control mechanism can drive the flip frame to move longitudinally, so that the top door of the garbage transfer box moves longitudinally to complete the opening and closing operation.

[0006] In this way, when the top door of the waste transfer box is opened, the vertical rotation control mechanism drives the tilting frame to rotate directly above the waste transfer box, causing the connecting block on the top door of the waste transfer box to engage with the connecting slot on the tilting frame. The longitudinal movement control mechanism then drives the tilting frame to move longitudinally, simultaneously moving the top door of the waste transfer box longitudinally, thereby opening the top door. When the top door of the waste transfer box is closed, the longitudinal movement control mechanism drives the tilting frame to move longitudinally, simultaneously moving the top door of the waste transfer box longitudinally, thereby closing the top door. Finally, the vertical rotation control mechanism drives the tilting frame to rotate, causing the connecting block to disengage from the connecting slot and rotating the tilting frame to a vertical position. The above-described structure has the following characteristics: 1. The structure for controlling the opening and closing of the top door is mounted on the bracket, utilizing a ground-mounted, shared door opening and closing mechanism, which is cost-effective and economical. 2. It eliminates the damage to the hydraulic system caused by contamination from quick connectors in the existing mechanism, thereby improving system performance and lifespan. 3. It has a high degree of automation, enabling unmanned control and saving manpower.

[0007] As an optimization, the mounting frame includes a mounting plate connected and fixed to the bracket, and two mounting rods arranged longitudinally along the garbage transfer box are fixed on the mounting plate by screws; and the cross-section of the mounting rod is designed as a rectangular structure; the longitudinal movement control mechanism includes a guide sleeve mounted on one of the mounting rods, and the mounting seat is installed and fixed on the guide sleeve; a first telescopic mechanism arranged longitudinally is installed on the mounting frame, and the working end of the first telescopic mechanism is connected to the guide sleeve.

[0008] In this way, the structural design of the mounting frame is simpler, and it can be more convenient to install and fix on the bracket. It can also be more convenient to form a longitudinal guide structure, thereby achieving the purpose of saving components.

[0009] As an optimization, connecting strips are provided on the outer sides of the distal ends of the two mounting rods, and both ends of the connecting strips are connected to the mounting rods by screws.

[0010] In this way, by providing the connecting strips, the entire mounting frame is designed to have a rectangular frame structure, which can make the structure of the mounting frame more stable.

[0011] As an optimization, the guide sleeve is mounted on a mounting rod located above; one end of the first telescopic mechanism is fixed on the mounting plate, and a U-shaped support block is provided below the other end of the first telescopic mechanism, and the support block is slidably mounted on a mounting rod located below.

[0012] In this way, the first telescopic mechanism can be installed and arranged more conveniently, and the entire structural design is more compact. In addition, by installing both ends of the first telescopic mechanism, the first telescopic mechanism can better drive the guide sleeve to move longitudinally on the installation rod.

[0013] As an optimization, a hinge block is provided below the guide sleeve, and the telescopic working end of the first telescopic mechanism is hingedly connected to the hinge block.

[0014] In this way, the guide sleeve is connected to the telescopic working end of the first telescopic mechanism through the hinge block, and the design is simpler and more reasonable.

[0015] Furthermore, the first telescopic mechanism is a pneumatic cylinder or an oil cylinder.

[0016] As an optimization, a top door linkage locking mechanism is provided between the garbage transfer box and the top door; the top door linkage locking mechanism includes a lock plate that is hingedly arranged on the outside of one end of the top door and can be vertically rotatable, and an inclined pressure strip plate is provided above the inner end of the lock plate, so that the pressure strip plate is located at the outside position of the connecting block, and the outer end of the lock plate is partially bent into a limit plate designed in an L-shaped structure, and the vertical section of the limit plate is spaced and located at the outside position of the surface of one side of the garbage transfer box; and a torsion spring mechanism is provided on the outer side of the garbage transfer box and corresponding to the lower end of the vertical section of the limit plate, so that the lock plate has a rotation tendency so that the vertical section of the limit plate has a tendency to move toward the outer side of the garbage transfer box, and the lower end of the vertical section of the limit plate can abut on the stop block to limit the longitudinal movement of the top door; and when the turning frame is rotated to the top of the garbage transfer box, the turning frame can be pressed on the pressure strip plate to drive the lock plate to overcome the torque and rotate, and the lower end of the vertical section of the limit plate is separated from the stop block.

[0017] In this way, when the top door linkage locking mechanism operates, the torsion spring mechanism causes the lock plate to rotate, simultaneously forcing the vertical section of the limit plate to move toward the outside of the waste transfer bin. At this point, the lower end of the vertical section of the limit plate abuts against the block, thereby limiting the longitudinal movement of the top door. To open the top door, the tilting frame rotates to directly above the waste transfer bin and presses against the pressure strip. This overcomes the torsion spring mechanism's torque, causing the lock plate to rotate and the lower end of the vertical section of the limit plate to separate from the block, effectively unlocking the top door. The top door linkage locking mechanism relies on the tilting frame to unlock the door and, driven by the tilting frame, opens the door. After loading is complete, the tilting frame drives the top door closed. After the tilting frame rotates to release the pressure on the pressure strip, the torsion spring mechanism resets the door, causing the lower end of the vertical section of the limit plate to abut against the block again, limiting the longitudinal movement of the top door. This structure works in conjunction with the tilting frame, resulting in a simple design that cleverly achieves both unlocking and locking the top door.

[0018] As an optimization, the lower end section of the vertical section of the limiting plate is designed to be a cylindrical structure.

[0019] In this way, the structural design is simpler and more reasonable. After the length section of the lower end of the vertical section of the limiting plate is designed to be a cylindrical structure, the contact area with the stop block is increased, which is more reliable.

[0020] As an optimization, the layering board is designed to be curved in an arc shape as a whole.

[0021] In this way, the structural design of the pressure strip plate is simpler and more reasonable, so that after the turnover frame rotates, it can better overcome the torsion of the torsion spring mechanism and drive the locking plate to rotate.

[0022] As an optimization, the flip frame includes two vertically arranged flip rods, and two groups of pads are arranged in pairs on the inner sides of the two flip rods, and the connecting bayonet is formed between the two paired pads; and a connecting block is provided on the top door corresponding to each of the two connecting bayonet.

[0023] In this way, the structural design of the turnover frame is simpler and more reasonable. Two connecting bayonet holes are provided, so that after cooperating with the two connecting blocks on the top door, the force on the top door is more balanced when the top door is driven to move longitudinally.

[0024] As an optimization, a connecting protrusion protruding horizontally outward is connected to the end surface of the top door, and the connecting clamping block is connected to the connecting protrusion; both sides of the upper end of the connecting clamping block are respectively provided with chamfered angle structures to form a clamping guide portion.

[0025] In this way, by providing the connecting protrusion and then providing the connecting clamping block on the connecting protrusion, the structural design is simpler and the connecting clamping block can be better matched with the connecting bayonet on the flip frame.

[0026] Furthermore, the locking plate is correspondingly arranged at the outer end position of one of the connecting protrusions.

[0027] As an optimization, an articulated rod is connected between the lower ends of the flip rods, the mounting seat includes two vertically arranged support plates, and the two ends of the articulated rod are respectively inserted and installed in the articulated holes of the support plates; the vertical rotation control mechanism includes a mounting support rod connected and fixed on the guide sleeve, and a second telescopic mechanism is provided on the mounting support rod, and one end of the second telescopic mechanism is hingedly mounted on the mounting support rod through a hinged support; a driving block with a curved arc-shaped structure is connected and fixed on the outer peripheral surface of the articulated rod, and the telescopic end of the second telescopic mechanism is hingedly connected to the far end of the driving block.

[0028] In this way, the structural design of the mounting base is simpler, making it easier to install the tilting frame. In addition, the structural design of the vertical rotation control mechanism is simpler and more reasonable, more compact, and more convenient to arrange.

[0029] As an optimization, a mounting waist hole is provided on one of the support plates, a flip frame position sensing sensor is installed in the mounting waist hole, a sensing protrusion is provided on the hinged rod, and when the flip frame is rotated to a vertical position, the sensing protrusion can be aligned with the working end of the flip frame position sensing sensor.

[0030] In this way, by providing a turning frame position sensing sensor, the position of the turning frame can be monitored more conveniently.

[0031] As an optimization, an installation notch is provided at the inner end of each of the two support plates, and an installation support bar is provided at the inner end of each of the two support plates, and both ends of the installation support bar are respectively installed and fixed in the installation notch, and a top door position sensing sensor is installed on the installation support bar.

[0032] In this way, by providing a top door position sensing sensor, the position of the top door can be monitored more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present invention. (The figure only shows the bracket and the top door opening and closing control structure).

[0034] Figure 2 yes Figure 1 A locally enlarged schematic diagram of position A in FIG.

[0035] Figure 3 yes Figure 1 main view.

[0036] Figure 4 yes Figure 1 Left view of .

[0037] Figure 5 It is a schematic diagram of the coordination between the top door opening and closing control structure and the garbage transfer box.

[0038] Figure 6 yes Figure 5 Schematic diagram of the structure after the middle turning frame and the connecting block are matched.

[0039] Figure 7 yes Figure 6 A locally enlarged schematic diagram of position B in FIG.

[0040] Figure 8 yes Figure 5 Schematic diagram of the structure after the middle top door is opened.

[0041] Figure 9 yes Figure 5 Schematic diagram of the structure after rotation by an angle.

[0042] Figure 10 yes Figure 9 A locally enlarged schematic diagram of the C position in FIG. DETAILED DESCRIPTION

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, in the description of the present invention, the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positions, are based on the directions or positions shown in the accompanying drawings and are intended solely for the purpose of facilitating and simplifying the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific manner. Therefore, they should not be construed as limiting the present invention. The terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] like Figures 1 to 10 The figure shows a garbage bin top door opening and closing mechanism, comprising a bracket 1 arranged on one side of the garbage transfer box; a mounting bracket 2 arranged longitudinally along the garbage transfer box is fixedly mounted on the bracket, a mounting seat 3 is provided on the mounting bracket, and a longitudinal movement control mechanism is provided between the mounting seat and the mounting bracket; a vertical flip frame 4 is provided above the mounting seat, and a vertical rotation control mechanism is provided between the flip frame and the mounting seat; a connecting bayonet 5 is provided on the flip frame; the vertical rotation control mechanism can drive the flip frame to rotate to just above the garbage transfer box, and make the upwardly protruding connecting block 6 on the top door of the garbage transfer box be inserted into the connecting bayonet; and the longitudinal movement control mechanism can drive the flip frame to move longitudinally, so that the top door 7 of the garbage transfer box moves longitudinally to complete the opening and closing operation.

[0045] In this way, when the top door of the waste transfer box is opened, the vertical rotation control mechanism drives the tilting frame to rotate directly above the waste transfer box, causing the connecting block on the top door of the waste transfer box to engage with the connecting slot on the tilting frame. The longitudinal movement control mechanism then drives the tilting frame to move longitudinally, simultaneously moving the top door of the waste transfer box longitudinally, thereby opening the top door. When the top door of the waste transfer box is closed, the longitudinal movement control mechanism drives the tilting frame to move longitudinally, simultaneously moving the top door of the waste transfer box longitudinally, thereby closing the top door. Finally, the vertical rotation control mechanism drives the tilting frame to rotate, causing the connecting block to disengage from the connecting slot and rotating the tilting frame to a vertical position. The above-described structure has the following characteristics: 1. The structure for controlling the opening and closing of the top door is mounted on the bracket, utilizing a ground-mounted, shared door opening and closing mechanism, which is cost-effective and economical. 2. It eliminates the damage to the hydraulic system caused by contamination from quick connectors in the existing mechanism, thereby improving system performance and lifespan. 3. It has a high degree of automation, enabling unmanned control and saving manpower.

[0046] In this specific embodiment, the mounting frame includes a mounting plate 8 connected and fixed to the bracket, and two mounting rods 9 arranged longitudinally along the garbage transfer box are fixed on the mounting plate by screws; and the cross-section of the mounting rod is designed as a rectangular structure; the longitudinal movement control mechanism includes a guide sleeve 10 mounted on one of the mounting rods, and the mounting seat is fixed on the guide sleeve; a first telescopic mechanism 11 arranged longitudinally is installed on the mounting frame, and the working end of the first telescopic mechanism is connected to the guide sleeve.

[0047] In this way, the structural design of the mounting frame is simpler, and it can be more convenient to install and fix on the bracket. It can also be more convenient to form a longitudinal guide structure, thereby achieving the purpose of saving components.

[0048] In this specific embodiment, connecting strips 12 are provided on the outer sides of the distal ends of the two mounting rods, and both ends of the connecting strips are connected to the mounting rods by screws.

[0049] In this way, by providing the connecting strips, the entire mounting frame is designed to have a rectangular frame structure, which can make the structure of the mounting frame more stable.

[0050] In this specific embodiment, the guide sleeve is mounted on a mounting rod located above; one end of the first telescopic mechanism is fixed on the mounting plate, and a U-shaped support block 13 is provided below the other end of the first telescopic mechanism, and the support block is slidably mounted on a mounting rod located below.

[0051] In this way, the first telescopic mechanism can be installed and arranged more conveniently, and the entire structural design is more compact. In addition, by installing both ends of the first telescopic mechanism, the first telescopic mechanism can better drive the guide sleeve to move longitudinally on the installation rod.

[0052] In this specific embodiment, a hinge block 14 is provided below the guide sleeve, and the telescopic working end of the first telescopic mechanism is hingedly connected to the hinge block.

[0053] In this way, the guide sleeve is connected to the telescopic working end of the first telescopic mechanism through the hinge block, and the design is simpler and more reasonable.

[0054] Furthermore, the first telescopic mechanism is a pneumatic cylinder or an oil cylinder.

[0055] In this specific embodiment, a top door linkage locking mechanism is provided between the garbage transfer box and the top door; the top door linkage locking mechanism includes a lock plate 15 which is hingedly arranged on the outside of one end of the top door and can be rotated vertically, and an inclined pressure strip plate 16 is provided above the inner end of the lock plate, and the pressure strip plate is located at the outside of the connecting block, and the outer end of the lock plate is partially bent into a limit plate 17 with an L-shaped structure design, and the vertical section 18 of the limit plate is spaced apart and located at the outside of the surface of one side of the garbage transfer box; and outside the garbage transfer box A stop block 19 is provided on the side and corresponding to the lower end of the vertical section of the limit plate, and a torsion spring mechanism is provided between the lock plate and the top door. The torsion spring mechanism can make the lock plate have a rotation tendency so that the vertical section of the limit plate has a tendency to move toward the outer side of the garbage transfer box, and make the lower end of the vertical section of the limit plate abut against the stop block to limit the longitudinal movement of the top door; and when the flip frame rotates to just above the garbage transfer box, the flip frame can be pressed on the pressure strip plate to drive the lock plate to overcome the torque and rotate, and make the lower end of the vertical section of the limit plate separate from the stop block.

[0056] In this way, when the top door linkage locking mechanism operates, the torsion spring mechanism causes the lock plate to rotate, simultaneously forcing the vertical section of the limit plate to move toward the outside of the waste transfer bin. At this point, the lower end of the vertical section of the limit plate abuts against the block, thereby limiting the longitudinal movement of the top door. To open the top door, the tilting frame rotates to directly above the waste transfer bin and presses against the pressure strip. This overcomes the torsion spring mechanism's torque, causing the lock plate to rotate and the lower end of the vertical section of the limit plate to separate from the block, effectively unlocking the top door. The top door linkage locking mechanism relies on the tilting frame to unlock the door and, driven by the tilting frame, opens the door. After loading is complete, the tilting frame drives the top door closed. After the tilting frame rotates to release the pressure on the pressure strip, the torsion spring mechanism resets the door, causing the lower end of the vertical section of the limit plate to abut against the block again, limiting the longitudinal movement of the top door. This structure works in conjunction with the tilting frame, resulting in a simple design that cleverly achieves both unlocking and locking the top door.

[0057] In this specific embodiment, the length section of the lower end of the vertical section of the limiting plate is designed to be cylindrical in structure.

[0058] In this way, the structural design is simpler and more reasonable. After the length section of the lower end of the vertical section of the limiting plate is designed to be a cylindrical structure, the contact area with the stop block is increased, which is more reliable.

[0059] In this specific embodiment, the layering plate is bent as a whole into an arc-shaped structure.

[0060] In this way, the structural design of the pressure strip plate is simpler and more reasonable, so that after the turnover frame rotates, it can better overcome the torsion of the torsion spring mechanism and drive the locking plate to rotate.

[0061] In this specific embodiment, the flip frame includes two vertically arranged flip rods 20, and two groups of pads 21 are arranged in pairs on the inner sides of the two flip rods, and the connecting bayonet is formed between the two paired pads; and a connecting block is provided on the top door corresponding to each of the two connecting bayonet.

[0062] In this way, the structural design of the turnover frame is simpler and more reasonable. Two connecting bayonet holes are provided, so that after cooperating with the two connecting blocks on the top door, the force on the top door is more balanced when the top door is driven to move longitudinally.

[0063] In this specific embodiment, a horizontally protruding connecting block 22 is connected to the end surface of the top door, and the connecting clamp is connected to the connecting block; both sides of the upper end of the connecting clamp are respectively provided with chamfered structures to form a clamping guide portion.

[0064] In this way, by providing the connecting protrusion and then providing the connecting clamping block on the connecting protrusion, the structural design is simpler and the connecting clamping block can be better matched with the connecting bayonet on the flip frame.

[0065] Specifically, the locking plate is correspondingly arranged at the outer end position of one of the connecting protrusions.

[0066] In this specific embodiment, a hinged rod 23 is connected between the lower ends of the flip rods, the mounting seat includes two vertically arranged support plates 24, and the two ends of the hinged rod are respectively inserted and installed in the hinge holes of the support plates; the vertical rotation control mechanism includes a mounting support rod 25 connected and fixed on the guide sleeve, and a second telescopic mechanism 26 is provided on the mounting support rod, and one end of the second telescopic mechanism is hingedly mounted on the mounting support rod through a hinged support; a driving block with a curved arc-shaped structure is connected and fixed on the outer peripheral surface of the hinged rod, and the telescopic end of the second telescopic mechanism is hingedly connected to the far end of the driving block.

[0067] In this way, the structural design of the mounting base is simpler, making it easier to install the tilting frame. In addition, the structural design of the vertical rotation control mechanism is simpler and more reasonable, more compact, and more convenient to arrange.

[0068] In this specific embodiment, a mounting waist hole is provided on one of the support plates, a flip frame position sensing sensor 27 is installed in the mounting waist hole, and a sensing protrusion 28 is provided on the hinged rod, so that when the flip frame is rotated to a vertical position, the sensing protrusion can be aligned with the working end of the flip frame position sensing sensor.

[0069] In this way, by providing a turning frame position sensing sensor, the position of the turning frame can be monitored more conveniently.

[0070] In this specific embodiment, a mounting notch is provided at each inner end of the two support plates, a mounting support bar 29 is provided at the inner end of the two support plates, and both ends of the mounting support bar are respectively fixed in the mounting notch, and a top door position sensing sensor 30 is installed on the mounting support bar.

[0071] In this way, by providing a top door position sensing sensor, the position of the top door can be monitored more conveniently.

[0072] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A garbage bin top door opening and closing mechanism, characterized in that; It includes a bracket arranged on one side of the garbage transfer box; a mounting frame arranged longitudinally along the garbage transfer box is fixedly installed on the bracket, a mounting seat is provided on the mounting frame, and a longitudinal movement control mechanism is provided between the mounting seat and the mounting frame; a vertical flip frame is provided above the mounting seat, and a vertical rotation control mechanism is provided between the flip frame and the mounting seat; a connecting bayonet is provided on the flip frame; the vertical rotation control mechanism can drive the flip frame to rotate to just above the garbage transfer box, and make the upwardly protruding connecting block on the top door of the garbage transfer box be inserted into the connecting bayonet; and the longitudinal movement control mechanism can drive the flip frame to move longitudinally, so that the top door of the garbage transfer box moves longitudinally to complete the opening and closing operation.

2. A trash bin top door opening and closing mechanism according to claim 1, characterized in that: The mounting frame includes a mounting plate connected and fixed to the bracket, and two mounting rods arranged longitudinally along the garbage transfer box are fixed on the mounting plate by screws; and the cross-section of the mounting rods is designed to be a rectangular structure; the longitudinal movement control mechanism includes a guide sleeve mounted on one of the mounting rods, and the mounting seat is fixed on the guide sleeve; a first telescopic mechanism arranged longitudinally is installed on the mounting frame, and the working end of the first telescopic mechanism is connected to the guide sleeve.

3. A trash bin top door opening and closing mechanism according to claim 2, characterized in that: Connecting strips are arranged on the outer sides of the distal ends of the two mounting rods, and both ends of the connecting strips are connected to the mounting rods through screws.

4. A trash bin top door opening and closing mechanism according to claim 2, characterized in that: The guide sleeve is mounted on a mounting rod located above; one end of the first telescopic mechanism is fixed on the mounting plate, and a U-shaped support block is provided below the other end of the first telescopic mechanism, so that the support block can be slidably mounted on a mounting rod located below.

5. A trash bin top door opening and closing mechanism according to claim 2, characterized in that: A hinge block is provided below the guide sleeve, and the telescopic working end of the first telescopic mechanism is hingedly connected to the hinge block.

6. A trash bin top door opening and closing mechanism as claimed in claim 2, characterized in that: The cam is secured to the outer edges of the door handle and is secured to the top edge of the door handle when the door is unlocked and the cam is secured to the top edge of the door handle when the door is unlocked.

7. A trash bin top door opening and closing mechanism according to claim 6, characterized in that: The lower end portion of the vertical section of the limiting plate is designed in a cylindrical structure.

8. A trash bin top door opening and closing mechanism according to claim 6, characterized in that: The batten board is designed to be curved as a whole.

Images