An automatic bagging, sealing, and bag-changing device for sweepers

Abstract

This invention discloses an automatic bagging, sealing, and bag-changing device for a sweeper, comprising a garbage bin and a sealing mechanism. The garbage bin has a dispensing opening at its top. The sealing mechanism includes a drive assembly comprising a drive component and a timing belt mounted on the top of the garbage bin, the drive component and the timing belt being drivenly connected; a clamping assembly comprising a first clamp and a second clamp, the first clamp being fixed to the top of the garbage bin and located at one end of the timing belt, and the second clamp being located directly above the dispensing opening; and a compensation assembly comprising a compensation mounting plate, a guide post, and a first spring, the compensation mounting plate being connected to the timing belt, one end of the guide post being slidably connected to the compensation mounting plate, the other end of the guide post being fixedly connected to the second clamp, and the first spring being installed between the second clamp and the compensation mounting plate. The above configuration ensures stable clamping and proper closing of the garbage bag opening, preventing deformation and damage to the garbage bag, and improving the success rate of the garbage bag sealing operation.

Description

Technical Field

[0001] This invention relates to the field of waste treatment technology, specifically to an automatic bagging, sealing, and bag-changing device for use in sweepers. Background Technology

[0002] With technological advancements, some designs have emerged that attempt to integrate automatic garbage baling functions into sweepers, but none have achieved commercial success. The main reason is that these designs suffer from numerous problems, with poor compatibility with different types of garbage being particularly prominent. Urban street garbage is complex and diverse, varying in shape, size, and texture.

[0003] Existing garbage bag sealing and clamping structures mostly employ simple mechanical structures, using rigid clamps to hold and close the garbage bag opening. However, the size and clamping force of the rigid clamps are fixed. When encountering irregularly shaped or unusually textured garbage, the rigid clamps cannot be adjusted to suit the shape and texture of the garbage, resulting in poor gripping and closing of the garbage bag opening. This may cause the garbage bag to deform or be damaged, thus affecting subsequent sealing operations and making it difficult to complete the automatic garbage bagging and sealing process smoothly. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes an automatic bagging, sealing, and bag-changing device for sweepers, which can ensure the secure clamping and proper closing of garbage bags, prevent garbage bags from deforming and being damaged, and improve the success rate of garbage bag sealing operations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic bagging, sealing, and bag-changing device for a sweeper includes a garbage bin and a sealing mechanism. The top of the garbage bin has a dispensing opening, and the sealing mechanism includes:

[0007] A drive assembly, comprising a drive component and a timing belt mounted on the top of the trash can, wherein the drive component and the timing belt are driven together;

[0008] A clamping assembly, comprising a first clamp and a second clamp, wherein the first clamp is fixed to the top of the trash can and is located on one side of the timing belt, and the second clamp is located directly above the disposal opening;

[0009] The compensation assembly includes a compensation mounting plate, a guide post, and a first spring. The compensation mounting plate is connected to the timing belt. One end of the guide post is slidably connected to the compensation mounting plate, and the other end of the guide post is fixedly connected to the second clamp. The first spring is installed between the second clamp and the compensation mounting plate.

[0010] Preferably, the guide post includes a movable end and a limiting end, the compensation mounting plate has a movable hole, the movable end is slidably connected to the movable hole, and the limiting end is equipped with a washer and a nut. When the first spring is in its natural state, the washer abuts against the nut and one end of the movable end, respectively.

[0011] Preferably, an oil-free bushing is installed inside the movable hole, and the movable end is slidably connected to the oil-free bushing.

[0012] Preferably, a retaining ring is fixed to the side wall of the guide post near the second clamp, and the first spring is arranged around the outer wall of the guide post, with one end of the first spring abutting against the retaining ring and the other end of the first spring abutting against the compensation mounting plate.

[0013] Preferably, a plurality of second springs are provided between the compensation mounting plate and the second clamp, one end of the second spring being connected to the compensation mounting plate and the other end of the second spring being connected to the second clamp.

[0014] Preferably, the compensation mounting plate is equipped with a synchronization plate, and a follower mounting block is fixedly provided at the bottom of the synchronization plate, with a portion of the synchronization belt fixed between the synchronization plate and the follower mounting block.

[0015] Preferably, the sealing mechanism further includes a guide limiting component, which includes a guide block, a first pulley, and a second pulley. The guide block is installed on the top of the trash can and has a guide groove. The first pulley and the second pulley are both fixed to the follower mounting block. The first pulley is slidably connected to the guide groove, and the second pulley is slidably connected to the side wall of the guide block.

[0016] Preferably, the trash can includes a trash bin body and a trash bin flap, wherein the trash bin flap is hinged to the bottom of the trash bin body.

[0017] Preferably, it also includes a garbage bag box, which is installed on top of the sealing mechanism. The garbage bin flip-top is equipped with a centrifugal fan, which sucks the garbage bag in the garbage bag box into the garbage bin so that the garbage bag is tightly attached to the inner wall of the garbage bin.

[0018] Preferably, the garbage bin body is equipped with a push rod motor, and one end of the push rod of the push rod motor is hinged to the garbage bin flip cover.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects:

[0020] When a garbage bag contains irregularly shaped or unusually textured waste that needs to be sealed, the drive assembly moves the synchronous belt. The synchronous belt moves the second clamp closer to the first clamp, and the first and second clamps work together to clamp and close the garbage bag opening. The waste exerts forces of varying directions and magnitudes on the second clamp. Because a first spring is installed between the second clamp and the compensation mounting plate, and one end of the guide post is slidably connected to the compensation mounting plate while the other end is fixedly connected to the second clamp, the first spring expands and contracts according to the force exerted by the waste on the second clamp. Guided by the guide post, the guide post and the second clamp move towards the compensation mounting plate, allowing the second clamp to flexibly adjust its position and clamping force, ensuring reliable clamping of the garbage bag opening. This improves compatibility with different types of waste and increases the success rate and reliability of the garbage bag sealing operation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of an automatic bagging, sealing, and bag-changing device for a sweeper according to the present invention;

[0023] Figure 2 This is a perspective view of the removal of garbage bag boxes in an automatic bagging, sealing, and bag-changing device for a sweeper according to the present invention;

[0024] Figure 3 This is a perspective view of the internal structure of the sealing mechanism in an automatic bagging, sealing, and bag-changing device for a sweeper according to the present invention.

[0025] Figure 4 This is a perspective view of the second clamping component and compensation assembly in an automatic bagging, sealing, and bag-changing device for a sweeper according to the present invention.

[0026] Figure 5 This is a perspective view of the synchronization plate, follower mounting block, pulley mounting block, first pulley, and second pulley in an automatic bagging, sealing, and bag changing device for a sweeper according to the present invention.

[0027] Attached image labels:

[0028] 1. Trash can; 11. Trash hopper body; 12. Trash hopper lid; 13. Disposal opening; 14. Hinge; 15. Photoelectric sensor; 16. Centrifugal fan; 17. Fan cover; 18. Push rod motor; 19. Sealing strip;

[0029] 2. Sealing mechanism; 21. Mounting box; 211. First through hole; 212. Second through hole; 22. Drive assembly; 221. Stepper motor; 222. Reducer; 223. Coupling; 224. Bearing; 225. Bearing housing; 226. Synchronous pulley; 227. Synchronous belt; 231. First clamp; 2311. First heat insulation block; 2312. Heating wire; 232. Second clamp; 2321. Second heat insulation block; 2322. Heat insulation mounting block; 24. Compensation assembly 241. Compensation mounting plate; 2411. Synchronization plate; 2412. Follower mounting block; 2413. Pulley mounting block; 242. Guide post; 2421. Movable end; 2422. Limiting end; 2423. Guide mounting seat; 243. First spring; 244. Bushing mounting block; 245. Snap ring; 246. Second spring; 247. Spring fixing post; 248. Washer; 249. Nut; 251. Guide block; 252. First pulley; 253. Second pulley;

[0030] 3. Garbage bag / box; Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] See Figures 1-5This invention provides an automatic bagging, sealing, and bag-changing device for a sweeper vehicle. Installed on the sweeper, it includes a garbage bin 1, a sealing mechanism 2, and a garbage bag container 3. The garbage bin 1 is mounted on the sweeper vehicle, the sealing mechanism 2 is mounted on top of the garbage bin 1, and the garbage bag container 3 is mounted on top of the sealing mechanism 2. The compact layout of all components integrates the automatic garbage bag processing flow, reducing space occupation, improving the space utilization rate of the sweeper vehicle, making the overall structure more rational, facilitating installation and operation on the sweeper vehicle, and adapting to the working environment and mobility requirements of the sweeper vehicle.

[0035] See Figure 2 and Figure 3 The sealing mechanism 2 includes an installation box 21, a drive assembly 22, a clamping assembly, and a compensation assembly 24. The bottom of the installation box 21 has a first through hole 211, and the top of the garbage bin 1 has a disposal opening 13. The first through hole 211 and the disposal opening 13 are the same size and are directly opposite each other. The drive assembly 22, the clamping assembly, and the compensation assembly 24 are all installed on the bottom of the installation box 21.

[0036] See Figure 2 and Figure 3The drive assembly 22 includes a drive component and a timing belt 227 mounted on the top of the garbage bin 1, and the drive component and timing belt 227 are drivenly connected. Specifically, the drive component includes a stepper motor 221, a reducer 222, and a coupling 223. The stepper motor 221 is mounted on the bottom of the mounting box 21 and is connected to the reducer 222. The reducer 222 is connected to the coupling 223. The timing belt 227 is mounted on the bottom of the mounting box 21 through two connecting ends. The connecting ends include a bearing 224, a bearing 224 seat, a timing pulley 226, and a drive pulley shaft. The bearing 224 seat is fixed to the bottom of the mounting box 21. The bearing 224, bearing 224 seat, timing pulley 226, and drive pulley shaft are mounted on the bearing 224 seat to drive the timing pulley 226. The coupling 223 is connected to the bearing 224. The two connecting ends are located at both ends of the timing belt 227. When the drive unit operates, the stepper motor 221 begins to rotate, transmitting power to the reducer 222. The reducer 222 reduces the speed of the stepper motor 221 and increases the torque to meet the speed and torque requirements of actual operation. The power adjusted by the reducer 222 is then transmitted to the coupling 223, which, as a connecting component, transmits power to the connected bearing 224. Since the bearing 224 is mounted in a bearing housing and engages with the drive shaft, when the bearing 224 begins to rotate, it drives the drive shaft to rotate accordingly. The rotation of the drive shaft drives the synchronous pulley 226 to rotate, and the synchronous belt 227 is fitted onto the synchronous pulley 226. Therefore, the rotation of the synchronous pulley 226 causes the synchronous belt 227 to move accordingly. The synchronous pulleys 226 and the synchronous belt 227 at both connecting ends work together. Through this transmission method, the power of the drive unit is ultimately transmitted to the synchronous belt 227, causing it to move stably and providing the necessary power support for subsequent clamping, sealing, and other operations.

[0037] See Figure 3 Furthermore, in this embodiment, two drive units and two timing belts 227 are provided. The timing belts 227 are located on both sides of the first through hole 211 along the width direction, and the length direction of the timing belts 227 is consistent with the length direction of the first through hole 211. The design of dual drive units and dual timing belts 227 provides sufficient power and stability, making the clamping and sealing actions more reliable, reducing the probability of failure, and improving the overall performance of the device.

[0038] See Figure 3 and Figure 4The clamping assembly includes a first clamp 231 and a second clamp 232. The first clamp 231 is fixed to the top of the garbage bin 1 and is located on one side of the synchronous belt 227. The second clamp 232 is located directly above the disposal opening 13 and is connected to the synchronous belt 227. Specifically, the first clamp 231 includes a first heat insulation block 2311 and a heating wire 2312. The first heat insulation block 2311 is installed at the bottom of the mounting box 21 and is located on one side of the first through hole 211 along its length. The heating wire 2312 is located on the side of the first heat insulation block 2311 near the first through hole 211. The combination of the heating wire 2312 and the first heat insulation block 2311 can heat and melt the garbage bag during sealing, while the first heat insulation block 2311 protects the surrounding components from high temperatures. The second clamp 232 includes a second heat insulation block 2321 and a heat insulation mounting block 2322. A heat insulation mounting groove for mounting the second heat insulation block 2321 is provided on one side of the heat insulation mounting block 2322. The second heat insulation block 2321 protects the surrounding components from high temperature.

[0039] See Figure 3 and Figure 4 The compensation assembly 24 includes a compensation mounting plate 241, a guide post 242, and a first spring 243. The compensation mounting plate 241 is connected to the timing belt 227. One end of the guide post 242 is slidably connected to the compensation mounting plate 241, and the other end of the guide post 242 is fixedly connected to the second clamp 232. The first spring 243 is installed between the second clamp 232 and the compensation mounting plate 241. Specifically, the end of the guide post 242 away from the compensation mounting plate 241 is fixedly connected to the heat insulation mounting block 2322 via a guide mounting seat 2423.

[0040] After the sweeper collects garbage, the garbage enters the garbage bin 1, which contains garbage bags. If sealing the garbage bags is required, the stepper motor 221 in the drive assembly 22 starts, driving the synchronous belt 227 via the reducer 222, coupling 223, and other components. This, in turn, moves the compensation mounting plate 241, causing the second clamp 232 to move closer to the first clamp 231. For regularly shaped and uniformly textured garbage, such as lumps or spheres, which are neatly arranged inside the garbage bag, the second clamp 232 experiences a single and predictable reaction force, mainly a slight pressure in the vertical direction, which does not affect its movement and allows for smooth clamping and sealing. However, urban street garbage is often irregularly shaped or has a special texture, such as long, curved, sharp, or soft and easily deformable garbage. When the second clamp 232 contacts the opening of the garbage bag containing this type of garbage, it will experience forces of different directions and magnitudes. Long, narrow pieces of trash generate horizontal lateral forces, heavier or piled-up trash generates significant downward pressure, and sharp trash generates oblique forces, causing uneven stress on the second clamp 232 and affecting its normal movement and position. The first spring 243 is installed between the second clamp 232 and the compensation mounting plate 241. One end of the guide post 242 is slidably connected to the compensation mounting plate 241, and the other end is fixed to the second clamp 232. When the second clamp 232 is subjected to the aforementioned forces, the first spring 243 extends and retracts under the guidance of the guide post 242. The guide post 242 and the second clamp 232 move towards the compensation mounting plate 241, allowing the second clamp 232 to flexibly adjust its position and clamping force to adapt to complex situations. Finally, the first clamp 231 and the second clamp 232 clamp and close the trash bag opening, and then the heating wire 2312 of the first clamp 231 heats and melts the trash bag opening to cut it, completing the sealing operation. The compensation component 24 improves compatibility with different types of waste, avoids deformation and damage of garbage bags due to inflexible adjustment, and increases the success rate and reliability of sealing operations.

[0041] See Figure 3 and Figure 4The guide post 242 includes a movable end 2421 and a limiting end 2422. The compensation mounting plate 241 has a movable hole, and the movable end 2421 is slidably connected to the movable hole. The movable end 2421 is located between the compensation mounting plate 241 and the heat insulation mounting block 2322. The limiting end 2422 is located on the side of the compensation mounting plate 241 away from the heat insulation mounting block 2322. The limiting end 2422 is equipped with a washer 248 and a nut 249. When the first spring 243 is in its natural state, the washer 248 abuts against the nut 249 and one end of the movable end 2421, respectively. When the garbage acts on the second clamp 232 to compress the spring, the heat insulation mounting block 2322 drives the movable end 2421 to move toward the compensation mounting plate 241, so that the heat insulation mounting block 2322 is closer to the compensation mounting plate 241, and the washer 248 and the nut 249 are moved away from the compensation mounting plate 241. The washer 248 and the nut 249 serve to position and limit the stroke of the movable end 2421, respectively, in the natural state and the compressed state of the first spring 243.

[0042] Furthermore, an oil-free bushing is installed inside the movable hole, and the movable end 2421 is slidably connected to the oil-free bushing. Specifically, a bushing mounting block 244 is installed on the side of the compensation mounting plate 241 near the nut 249. The oil-free bushing is partially embedded in the bushing mounting block 244, and the oil-free bushing is located inside the movable hole. The diameter of the oil-free bushing is adapted to the diameter of the movable hole. The movable end 2421 is movably connected to the oil-free bushing. The oil-free bushing reduces component wear and energy loss, and improves the service life and working efficiency of the device.

[0043] A retaining ring 245 is fixed to the side wall of the guide post 242 near the second clamp 232. A first spring 243 is arranged around the outer wall of the guide post 242. One end of the first spring 243 abuts against the retaining ring 245, and the other end of the first spring 243 abuts against the compensation mounting plate 241. The retaining ring 245 ensures the normal working position of the spring and guarantees the stability of the compensation assembly 24.

[0044] See Figure 4A plurality of second springs 246 are provided between the compensation mounting plate 241 and the second clamp 232. One end of the second spring 246 is connected to the compensation mounting plate 241, and the other end is connected to the second clamp 232. Specifically, spring fixing posts 247 are fixed on the sides of the compensation mounting plate 241 and the heat insulation mounting block 2322 that are close to each other. The two ends of the second springs 246 are respectively fixed to the spring fixing posts 247 of the compensation mounting plate 241 and the second clamp 232. When the garbage exerts a large impact force or irregular force on the second clamp 232, the second springs 246 work together with the first springs 243 to share the force and provide additional buffering and compensation. The setting of the second springs 246 enhances the elastic buffering capacity of the compensation assembly 24, enabling the clamping assembly to work more stably when facing various complex garbage, reducing the risk of component damage caused by garbage impact, improving the reliability and durability of the device, and further optimizing the clamping effect on garbage.

[0045] See Figure 3 and 5 The compensation mounting plate 241 is equipped with a synchronization plate 2411, and a follower mounting block 2412 is fixed to the bottom of the synchronization plate 2411. A portion of the synchronization belt 227 is fixed between the synchronization plate 2411 and the follower mounting block 2412. Specifically, the follower mounting block 2412 is fixed to the bottom of the synchronization plate 2411 by bolts, and a portion of the synchronization belt 227 is located between the synchronization plate 2411 and the follower mounting block 2412. Through the pressing force and friction between the synchronization plate 2411 and the follower mounting block 2412, a portion of the synchronization belt 227 is fixed between the synchronization plate 2411 and the follower mounting block 2412. This connection method ensures the synchronous movement of the compensation component 24 and the drive component 22, reduces slippage or disengagement during power transmission, and also facilitates installation and disassembly.

[0046] See Figure 3 and 5The sealing mechanism 2 also includes a guide and limiting assembly, which includes a guide block 251, a first pulley 252, and a second pulley 253. The guide block 251 is installed on the top of the garbage bin 1, that is, on the bottom of the mounting box 21. The guide block 251 has a guide groove. The first pulley 252 and the second pulley 253 are both fixed to the bottom of the follower mounting block 2412 by a pulley mounting block 2413. The first pulley 252 is slidably connected to the guide groove, and the second pulley 253 is slidably connected to the side wall of the guide block 251. Specifically, there are two first pulleys 252. The first pulley 252 is installed on the side wall fixed to the follower mounting block 2412, and the second pulley is fixed to the bottom of the follower mounting block 2412. During the operation of the sealing mechanism 2, the follower mounting block 2412 moves with the synchronous belt 227. The first pulley 252 slides in the guide groove of the guide block 251, and the second pulley 253 slides on the side wall of the guide block 251, guiding and limiting the movement of the follower mounting block 2412. The guiding and limiting components precisely limit the movement trajectory of the follower mounting block 2412, preventing it from deviating or wobbling during movement, ensuring the movement accuracy of the clamping components and the compensation components 24, improving the accuracy of the garbage bag clamping and sealing operations, reducing operational failures caused by component movement deviations, and enhancing the overall performance of the device.

[0047] join Figure 1 and Figure 2 The garbage bin 1 includes a garbage bin body 11 and a garbage bin flap 12, with the flap 12 hinged to the bottom of the garbage bin body 11. Specifically, the flap 12 is hinged to the garbage bin body 11 via a hinge 14, which is bolted to the garbage bin body 11. A sealing strip 19 is installed at the hinged edge of the flap 12 and the garbage bin body 11 using a snap-fit ​​method. During sweeper operation, the flap 12 remains connected to the garbage bin body 11 via the hinge 14, allowing it to be opened and closed for garbage disposal. The sealing strip 19 provides a seal when the flap 12 is closed, preventing odor leakage and dust from spreading, thus maintaining a clean environment around the sweeper.

[0048] join Figure 1 and Figure 2Two sets of photoelectric sensors 15 are installed on the outer surface of the garbage bin body 11. These sensors are used to detect the arrival and presence of garbage bags, respectively. A centrifugal fan 16 is installed on the garbage bin lid 12. The centrifugal fan 16 draws the garbage bags from the garbage bag box 3 into the garbage bin 1, ensuring the bags are tightly against the inner wall of the bin 1. Specifically, a second through hole 212 is provided at the top of the mounting box 21, which is adapted to the discharge end of the garbage bag box 3. The centrifugal fan 16 is installed on the outer wall of the garbage bin lid 12, and a fan cover 17 is also installed on the outer wall to protect the centrifugal fan 16. When the garbage bags need to be replaced, the centrifugal fan 16 starts, creating negative pressure inside the garbage bin 1, drawing the garbage bags from the garbage bag box 3 into the bin 1 and ensuring they are tightly against the inner wall, preparing for subsequent garbage collection. The fan cover 17 protects the centrifugal fan 16 from external impacts and dust corrosion, ensuring its normal operation.

[0049] join Figure 1 and Figure 2 The garbage bin body 11 is equipped with a push rod motor 18, and one end of the push rod of the push rod motor 18 is hinged to the garbage bin flip cover 12. When the garbage is full and needs to be emptied or the garbage bag is sealed and needs to be replaced, the push rod motor 18 is started, pushing the garbage bin flip cover 12 to open or close, thereby realizing automatic control of the opening and closing of the garbage bin 1.

[0050] The implementation principle of this embodiment is as follows:

[0051] Before the sweeper starts working, the centrifugal fan 16 on the garbage bin 1 is started, creating a negative pressure inside the garbage bin 1, which sucks the garbage bag in the garbage box into the garbage bin 1, making it evenly adhere to the inner wall of the garbage bin 1, ready to receive garbage.

[0052] When the sweeper is cleaning city roads, garbage is swept into a garbage bin 1 lined with bags by the sweeping device. As the garbage accumulates, when the preset capacity is reached, the two stepper motors 221 in the sealing device start. The stepper motors 221 output power according to the preset program. After the speed is adjusted and the torque is increased by the reducer 222, the power is transmitted to the bearing 224 through the coupling 223, which in turn drives the drive wheel shaft and the synchronous pulley 226 to rotate, causing the synchronous belt 227 to move. The synchronous belt 227 drives the compensation mounting plate 241 to move, thereby causing the second clamp 232 connected to the synchronous belt 227 to move closer to the first clamp 231. During this process, due to the complexity of garbage on city roads, the second clamp 232 will be subjected to forces of different directions and magnitudes when it comes into contact with the garbage bag opening. For garbage with a regular shape and uniform texture, the second clamp 232 can move relatively smoothly and cooperate with the first clamp 231 to complete the clamping and sealing operation. However, for waste with irregular shape or special texture, the second clamp 232 can flexibly adjust its position and clamping force under the coordinated action of components such as the first spring 243, guide post 242, second spring 246, synchronization plate 2411, follower mounting block 2412 and guide limit assembly. For example, when encountering long, narrow pieces of waste that generate a horizontal lateral force, the first spring 243, guided by the guide post 242, extends and retracts according to the direction and magnitude of the force. The guide post 242 drives the second clamp 232 to move appropriately in the horizontal direction. At the same time, the second spring 246 also shares part of the force according to the force situation, ensuring the stability of the second clamp 232. When encountering heavier waste that generates a large downward pressure, the first spring 243 and the second spring 246 compress together to buffer the pressure and maintain the vertical position of the second clamp 232 through the guide post 242, preventing it from sinking excessively and affecting the sealing operation. When encountering sharp waste that generates an oblique force, each spring and the guide post 242 will also perform corresponding actions according to the force decomposition, ensuring the correct position and clamping force of the second clamp 232.

[0053] As the second clamp 232 approaches the first clamp 231 and clamps the garbage bag opening, the first pulley 252 of the guide limiting assembly slides within the guide groove of the guide block 251, and the second pulley 253 slides against the side wall of the guide block 251, precisely limiting the movement trajectory of the follower mounting block 2412 and the second clamp 232 to ensure their movement accuracy. Once the garbage bag is in position, the heating wire 2312 of the first clamp 231 is activated, melting and cutting the garbage bag that is pressed against the surface of the heating wire. Subsequently, the stepper motor 221 reverses, causing the garbage bag clamp to release the clamped garbage bag.

[0054] Next, the push rod motor 18 on the garbage bin body 11 starts, pushing the garbage bin flap 12 to open and disposing of the heat-sealed garbage bag. Then, the push rod motor 18 reverses, closing the garbage bin. The centrifugal fan 16 then starts again, repeating the bag-sucking process to draw a new garbage bag into the garbage bin 1, completing a full automatic garbage bagging, sealing, and bag-changing process. Throughout the process, all components work closely together. Through precise mechanical structure design and reasonable power control, efficient processing of different types of garbage is achieved, improving the garbage handling efficiency and automation level of the sweeper, while ensuring the stability and reliability of the device.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic bagging, sealing, and bag-changing device for a sweeper, characterized in that, Includes a trash can (1) and a sealing mechanism (2), wherein the trash can (1) has a disposal opening (13) on its top, and the sealing mechanism (2) includes: A drive assembly (22) includes a drive element and a timing belt (227) mounted on the top of the trash can (1), the drive element and the timing belt (227) being drivenly connected; The clamping assembly includes a first clamp (231) and a second clamp (232). The first clamp (231) is fixed to the top of the trash can (1) and is located on one side of the synchronous belt (227). The second clamp (232) is located directly above the disposal port (13). The compensation component (24) includes a compensation mounting plate (241), a guide post (242), and a first spring (243). The compensation mounting plate (241) is connected to the timing belt (227). One end of the guide post (242) is slidably connected to the compensation mounting plate (241), and the other end of the guide post (242) is fixedly connected to the second clamp (232). The first spring (243) is installed between the second clamp (232) and the compensation mounting plate (241). The compensation mounting plate (241) is equipped with a synchronization plate (2411), and a follower mounting block (2412) is fixedly provided at the bottom of the synchronization plate (2411). A portion of the synchronization belt (227) is fixed between the synchronization plate (2411) and the follower mounting block (2412).

2. The automatic bagging, sealing, and bag-changing device for a sweeper as described in claim 1, characterized in that, The guide post (242) includes a movable end (2421) and a limiting end (2422). The compensation mounting plate (241) has a movable hole. The movable end (2421) is slidably connected to the movable hole. The limiting end (2422) is equipped with a washer (248) and a nut (249). When the first spring (243) is in its natural state, the washer (248) abuts against one end of the nut (249) and the movable end (2421).

3. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 2, characterized in that, An oil-free bushing is installed inside the movable hole, and the movable end (2421) is slidably connected to the oil-free bushing.

4. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 1, characterized in that, A retaining ring (245) is fixed to the side wall of the guide post (242) near the second clamp (232). The first spring (243) is arranged around the outer wall of the guide post (242). One end of the first spring (243) abuts against the retaining ring (245), and the other end of the first spring (243) abuts against the compensation mounting plate (241).

5. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 1, characterized in that, A plurality of second springs (246) are provided between the compensation mounting plate (241) and the second clamp (232). One end of the second spring (246) is connected to the compensation mounting plate (241), and the other end of the second spring (246) is connected to the second clamp (232).

6. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 1, characterized in that, The sealing mechanism (2) further includes a guide limiting component, which includes a guide block (251), a first pulley (252) and a second pulley (253). The guide block (251) is installed on the top of the trash can (1). The guide block (251) has a guide groove. The first pulley (252) and the second pulley (253) are both fixed to the follower mounting block (2412). The first pulley (252) is slidably connected to the guide groove, and the second pulley (253) is slidably connected to the side wall of the guide block (251).

7. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 1, characterized in that, The trash can (1) includes a trash can body (11) and a trash can lid (12), the trash can lid (12) being hinged to the bottom of the trash can body (11).

8. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 7, characterized in that, It also includes a garbage bag box (3), which is installed on the top of the sealing mechanism (2). The garbage bin flip cover (12) is equipped with a centrifugal fan (16), which sucks the garbage bag in the garbage bag box (3) into the garbage bin (1) so that the garbage bag is tightly attached to the inner wall of the garbage bin (1).

9. The automatic bagging, sealing, and bag-changing device for a sweeper according to claim 7, characterized in that, The garbage bin body (11) is equipped with a push rod motor (18), and one end of the push rod of the push rod motor (18) is hinged to the garbage bin flip cover (12).

Images