A road sweeper

Abstract

The application discloses a road surface cleaning vehicle, which comprises a frame assembly, a vehicle body, a cleaning assembly and a garbage box; the frame assembly comprises a chassis and a first mounting frame; the vehicle body is arranged on the chassis; the cleaning assembly comprises a cleaning mechanism, a pushing shovel mechanism and a negative pressure mechanism; the pushing shovel mechanism can be extended forward or retracted upward; the negative pressure mechanism is used for forming a negative pressure to deliver garbage to the garbage box; the garbage box comprises a box body, a box door, a self-locking assembly and an unlocking assembly; the box body is provided with a garbage outlet; the box door is rotationally connected to the box body; the self-locking assembly automatically locks the box door at a position for closing the garbage outlet; and the unlocking assembly is used for automatically releasing the locking of the box door; the integrated pushing shovel mechanism can be extended to remove obstacles when there are large obstacles, so that the cleaning vehicle can smoothly complete the cleaning operation; meanwhile, the box door is automatically locked by the self-locking assembly, and the locking of the box door is automatically released by the unlocking assembly, so that the operation is more convenient, and the working efficiency of the cleaning vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of road sweeping equipment technology, specifically to a road sweeper vehicle. Background Technology

[0002] Sweeper trucks are specialized cleaning devices for cleaning up road garbage. As a type of sanitation equipment, they have the advantages of high efficiency, saving time and labor, and reducing the labor intensity of sanitation workers. Therefore, they are widely used in cleaning operations on city streets, municipal squares, airport runways, urban residential areas, parks, and other roads.

[0003] Currently, most existing sweepers can only clean dust, small stones, branches and leaves on the road surface. When there are large debris such as small mounds of soil, large stones, or piles of garbage on the road, most existing sweepers can only go around these debris or require manual clearing before they can continue sweeping operations, which greatly reduces the efficiency of sweepers.

[0004] Meanwhile, most existing sweepers have their garbage bins fixed to the frame, and the bin doors are opened by rotating and raising them to a certain angle using a support rod. They are then locked with bolts or latches. Since closing the garbage bin door requires manual bolting or latching, the closing operation is not convenient, which in turn affects the sweeper's operating efficiency.

[0005] Therefore, a new sweeper needs to be designed to improve its operating efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a road sweeper that can improve the operating efficiency of the sweeper.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A road sweeper includes a frame assembly, a vehicle body, a sweeping assembly, and a garbage bin;

[0009] The frame assembly includes a chassis and a first mounting bracket, the first mounting bracket being disposed at the front end of the chassis;

[0010] The vehicle body is mounted on the chassis;

[0011] The sweeping assembly includes a sweeping mechanism, a pusher mechanism, and a negative pressure mechanism. The sweeping mechanism and the pusher mechanism are respectively connected to the first mounting frame. The pusher mechanism can extend forward relative to the sweeping mechanism or retract upward relative to the sweeping mechanism. The negative pressure mechanism is located in the vehicle body and is used to create negative pressure to transport the garbage swept by the sweeping mechanism to the garbage bin.

[0012] The trash can includes a body, a door, a self-locking component, and an unlocking component. The body is located at the rear end of the chassis and has a downward-sloping trash outlet. The door is rotatably connected to the body. The self-locking component automatically locks the door in a position that closes the trash outlet. The unlocking component is used to automatically release the lock on the door.

[0013] Furthermore, the sweeping mechanism includes a sweeping bracket, a disc brush, and a suction nozzle. The sweeping bracket is connected to the first mounting frame, and the disc brush and suction nozzle are mounted on the sweeping bracket. The suction nozzle is connected to the trash can through a pipe to collect trash. The pusher mechanism includes a linkage assembly, a push bucket, and a first driving member. One end of the linkage assembly is hinged to the first mounting frame, and the other end is connected to the push bucket. Under the drive of the first driving member, the linkage assembly drives the push bucket to move relative to the disc brush.

[0014] Furthermore, the number of the linkage assemblies is two sets, and the first driving member is two correspondingly arranged. The linkage assembly includes a connecting rod, a swing rod, and a driving rod. One end of the connecting rod is hinged to the first mounting frame, and the other end is hinged to the swing rod. A connecting rod is connected between the swing rods of the two linkage assemblies. The pusher is connected to the swing rod. One end of the driving rod is connected to the first driving member, and the other end is hinged to the connecting rod.

[0015] Furthermore, the connecting rod includes a first rod and a second rod, which are arranged parallel to each other vertically and are respectively hinged to the end of the swing rod. The upper end of the driving rod is hinged to the second rod.

[0016] Furthermore, the cleaning mechanism also includes a lifting assembly, which includes a drive arm and a second drive member. One end of the drive arm is hinged to the first mounting frame and the other end is connected to the cleaning bracket. The second drive member is disposed on the first mounting frame and drives the cleaning bracket to lift and lower through the drive arm.

[0017] Furthermore, the negative pressure mechanism includes a second mounting bracket and a negative pressure fan. The second mounting bracket is disposed in the vehicle body, and the negative pressure fan is disposed on the second mounting bracket. The box has a garbage inlet and an air outlet. The garbage inlet is connected to the cleaning mechanism through a pipe. The negative pressure generated by the negative pressure fan causes the air in the box to be discharged from the air outlet.

[0018] Furthermore, the container body is mounted on the chassis via a third mounting bracket, and the upper part of the container door is rotatably connected to the top of the waste outlet. The self-locking assembly includes a self-locking component and a self-locking rod. The self-locking component is disposed on the container body, and the self-locking rod is disposed on the inner side of the container door. Through the cooperation of the self-locking component and the self-locking rod, the container door is automatically locked in the position of closing the waste outlet. The unlocking assembly includes an unlocking component and an unlocking rod. The unlocking component is movably disposed relative to the self-locking component. The unlocking rod pushes the unlocking component to release the cooperation between the self-locking component and the self-locking rod, allowing the container door to rotate and open relative to the waste outlet.

[0019] Furthermore, the self-locking component includes a locking block and a handle. The locking block is hinged to the housing, and the center of gravity of the locking block is located below its hinge point. The self-locking rod is provided with an upward-facing locking slot. The locking block falls into the locking slot to lock the housing door. The locking block extends upward relative to its hinge point to form the handle. The self-locking assembly also includes a limiting rod, which is located on the rear side of the handle.

[0020] Furthermore, the unlocking component includes a push plate, which is movably disposed on the side of the housing. The push plate is connected to the unlocking rod, and a push block is disposed on the inner side of the push plate. The self-locking component is disposed on the side of the housing, and the push block pushes the self-locking component under the action of the unlocking rod.

[0021] Furthermore, a guide seat is provided inside the vehicle body, the guide seat is located below the box body, and the unlocking rod pushes the push plate to move along the guide seat.

[0022] By adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] This invention integrates a sweeping mechanism and a pusher mechanism. The pusher mechanism can extend to clear large obstacles and can be retracted when there are no obstacles affecting the sweeping operation, allowing the sweeper to complete the sweeping operation smoothly and ensuring the sweeper's operating efficiency. At the same time, the self-locking component automatically locks the door in the closed garbage outlet position, and the unlocking component automatically releases the lock on the door. The door does not need to be locked with bolts or latches, making operation more convenient and further improving the sweeper's operating efficiency. Attached Figure Description

[0024] Figure 1 This is one of the three-dimensional schematic diagrams of the present invention;

[0025] Figure 2 This is a second three-dimensional schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the cleaning assembly in this invention;

[0027] Figure 4 This is a schematic diagram of the structure of the first mounting bracket in this invention;

[0028] Figure 5 This is a schematic diagram of the installation of the cleaning mechanism in this invention;

[0029] Figure 6 This is a schematic diagram of the cleaning mechanism in this invention;

[0030] Figure 7 This is an exploded view of the cleaning mechanism in this invention;

[0031] Figure 8 This is a schematic diagram of the installation of the pusher mechanism in this invention;

[0032] Figure 9 This is a schematic diagram of the pusher mechanism in this invention;

[0033] Figure 10 This is one of the schematic diagrams of the action of the pusher mechanism in this invention (pushing bucket extended state);

[0034] Figure 11 This is the second schematic diagram of the action of the pusher mechanism in this invention (pushing bucket retracted state);

[0035] Figure 12 This is a schematic diagram of the installation of the negative pressure mechanism and the trash can in this invention;

[0036] Figure 13 This is a schematic diagram of the installation of the trash can in this invention;

[0037] Figure 14 This is one of the structural schematic diagrams of the trash can in this invention;

[0038] Figure 15 This is one of the exploded view diagrams of the trash can in this invention;

[0039] Figure 16 This is the second schematic diagram of the structure of the trash can in this invention;

[0040] Figure 17 This is the second exploded view of the trash can in this invention;

[0041] Figure 18 This is a schematic diagram (partial structure) of the cabinet door in this invention;

[0042] Figure 19 for Figure 15 A magnified view of a section at point A in the middle;

[0043] Figure 20 This is a schematic diagram of the push plate in this invention;

[0044] Figure 21 This is a schematic diagram of the locked state of the cabinet door in this invention;

[0045] Figure 22 This is one of the schematic diagrams illustrating the door unlocking process in this invention;

[0046] Figure 23 This is the second schematic diagram of the door unlocking process in this invention;

[0047] Figure 24 This is the third schematic diagram of the door unlocking process in this invention;

[0048] Figure 25 This is the fourth schematic diagram of the door unlocking process in this invention;

[0049] Figure 26 This is the fifth schematic diagram of the door unlocking process in this invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] Frame assembly 1, chassis 100, third mounting bracket 110, first mounting bracket 200, first frame rod 210, first articulation seat 211, second articulation seat 212, fourth articulation seat 213, vertical beam 214, crossbeam 215, second frame rod 220, third articulation seat 221;

[0052] Car body 2, guide seat 21;

[0053] Sweeping assembly 3, sweeping mechanism 300, sweeping bracket 310, first connecting seat 311, disc brush 320, suction nozzle 330, lifting assembly 340, drive arm 341, second drive component 342, pusher mechanism 400, linkage assembly 410, connecting rod 411, first rod 4111, second rod 4112, swing arm 412, drive rod 413, connecting rod 414, push bucket 420, first drive component 430, second mounting bracket 510, negative pressure fan 520;

[0054] Garbage bin 4, bin body 600, garbage inlet 610, air outlet 620, bin lid 630, buffer enclosure 640, air filter element 650, height sensor 660, garbage outlet 670, sealing ring 680, second connecting seat 690, bin door 700, panel 710, inner bin door 720, outer bin door 730, hinge 740, self-locking component 810, lock block 811, handle 812, self-locking rod 820, lock mouth 821, limit rod 830, unlocking component 910, push plate 911, bottom plate 9111, side plate 9112, front baffle 9113, push block 912, unlocking rod 920. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, it should be noted that:

[0056] The terms “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer” are based on the orientation or positional relationship shown in the accompanying drawings and are used merely for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element of the present invention must have a specific orientation and therefore should not be construed as a limitation of the present invention.

[0057] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0058] Unless otherwise expressly 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; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] Example

[0060] Cooperate Figure 1 and Figure 2 As shown, the present invention discloses a road sweeper, including a frame assembly 1, a vehicle body 2, a sweeping assembly 3, and a garbage bin 4.

[0061] Cooperate Figures 2 to 4 As shown, the frame assembly 1 includes a chassis 100 and a first mounting bracket 200. The vehicle body 2 is mounted on the chassis 100, and the first mounting bracket 200 is located at the front end of the chassis 100. The first mounting bracket 200 includes a first support rod 210 and a second support rod 220. Two first hinge seats 211 and two hinge seats 212 are respectively arranged side by side on the first support rod 210. The second support rod 220 has a frame-shaped structure and extends outward relative to the first support rod 210. Two third hinge seats 221 are arranged side by side on the second support rod 220, and two fourth hinge seats 213 are arranged side by side above the third hinge seats 221 on the first support rod 210.

[0062] In this embodiment, the first support rod 210 includes two vertically arranged vertical beams 214 and two horizontal beams 215 arranged parallel between the vertical beams 214. The first hinge seat 211 and the second hinge seat 212 are arranged on the vertical beams 214, the fourth hinge seat 213 is arranged in the upper horizontal beam 215, and the second support rod 220 is arranged in the lower horizontal beam 215.

[0063] Cooperate Figure 2 and Figure 3 As shown, the sweeping assembly 3 includes a sweeping mechanism 300, a pusher mechanism 400, and a negative pressure mechanism. The sweeping mechanism 300 and the pusher mechanism 400 are respectively connected to the first mounting frame 200. The pusher mechanism 400 can extend forward relative to the sweeping mechanism 300 or retract upward relative to the sweeping mechanism 300. The negative pressure mechanism is located inside the vehicle body 2 and is used to create negative pressure to transport the garbage swept by the sweeping mechanism 300 to the garbage bin 4. The sweeping assembly 3 integrates the sweeping mechanism 300 and the pusher mechanism 400. The pusher mechanism 400 can extend to clear obstacles when there are large obstacles and can be retracted when there are no obstacles that affect the sweeping operation, so that the sweeper can complete the sweeping operation smoothly, ensure the operating efficiency of the sweeper, and reduce the labor intensity of the operators and the existing safety hazards.

[0064] Cooperate Figures 3 to 9 As shown, the sweeping mechanism 300 includes a sweeping bracket 310, a disc brush 320, and a suction nozzle 330. The sweeping bracket 310 is connected to the first mounting frame 200. The disc brush 320 and the suction nozzle 330 are mounted on the sweeping bracket 310. The suction nozzle 330 is connected to the garbage bin 4 through a pipe (not shown in the figure) to collect garbage. The pusher mechanism 400 includes a linkage assembly 410, a push bucket 420, and a first driving member 430. One end of the linkage assembly 410 is hinged to the first mounting frame 200, and the other end is connected to the push bucket 420. Under the drive of the first driving member 430, the linkage assembly 410 drives the push bucket 420 to move relative to the disc brush 320. In this embodiment, two disc brushes 320 are arranged side by side on the sweeping bracket 310. The disc brushes 320 are controlled to rotate by a motor or hydraulic motor, and the suction nozzle 330 is disposed between the two disc brushes 320.

[0065] There are two sets of linkage assemblies 410, and two corresponding first drive members 430. Each linkage assembly 410 includes a connecting rod 411, a swing rod 412, and a drive rod 413. One end of the connecting rod 411 is hinged to the first mounting bracket 200, and the other end is hinged to the swing rod 412. A connecting rod 414 connects the swing rods 412 of the two linkage assemblies 410. A push bucket 420 is connected to the swing rod 412. One end of the drive rod 413 is connected to the first drive member 430, and the other end is hinged to the connecting rod 411. Driven by the first drive member 430, the linkage assembly 410 causes the push bucket 420 to extend forward relative to the disc brush 320 or to retract upward relative to the disc brush 320. In this embodiment, the first drive member 430 is an electric push rod, a gas spring, or a hydraulic push rod. The extension and retraction of the push bucket 420 are controlled by the linkage assembly 410 and the first drive member 430. The linkage assembly 410 consists of a connecting rod 411, a swing rod 412 and a drive rod 413, and has the advantages of simple structure, reliable operation and low production cost.

[0066] The connecting rod 411 includes a first rod 4111 and a second rod 4112. The first rod 4111 and the second rod 4112 are arranged parallel to each other vertically and are respectively hinged to the end of the swing rod 412. The upper end of the driving rod 413 is hinged to the second rod 4112. The first rod 4111 and the second rod 4112 are respectively connected to the two first hinge seats 211, and the first driving member 430 is respectively connected to the two second hinge seats 212.

[0067] The sweeping mechanism 300 also includes a lifting assembly 340, which includes a drive arm 341 and a second drive member 342. One end of the drive arm 341 is hinged to the first mounting frame 200, and the other end is connected to the sweeping bracket 310. The second drive member 342 is mounted on the first mounting frame 200 and drives the sweeping bracket 310 to rise and fall via the drive arm 341. When the disc brush 320 is in operation, the second drive member 342 lowers the sweeping bracket 310 so that it is close to the ground for sweeping operations. After the work is completed, the second drive member 342 lifts the sweeping bracket 310 upward so that it leaves the ground.

[0068] The cleaning bracket 310 has a frame-shaped structure and is located below the second support rod 220. Two third hinge seats 221 are respectively connected to drive arms 341, and two fourth hinge seats 213 are respectively connected to second drive members 342. The two second drive members 342 are respectively connected to the drive arms 341. A first connecting seat 311 is provided at the bottom of the cleaning bracket 310, and the suction nozzle 330 is mounted on the first connecting seat 311. In this embodiment, the second drive member 342 is either an electric push rod or a hydraulic push rod.

[0069] Cooperate Figure 3 , Figures 9 to 11As shown, the working principle of the pusher mechanism 400 is as follows: When the pusher bucket 420 needs to work, the first drive member 430 is activated, driving the connecting rod assembly 410 to rotate downward through the drive rod 413. The connecting rod assembly 410 drives the swing arm 412 to move downward, thereby causing the pusher bucket 420 to extend in front of the disc brush 320 and approach the ground for cleaning work; When the pusher bucket 420 needs to be retracted, the first drive member 430 is activated, driving the connecting rod assembly 410 to rotate upward through the drive rod 413. The connecting rod assembly 410 drives the swing arm 412 to move upward, thereby causing the pusher bucket 420 to retract upward relative to the disc brush 320 and move away from the ground.

[0070] Cooperate Figure 12 , Figure 13 , Figure 15 , Figure 17 As shown, the negative pressure mechanism includes a second mounting bracket 510 and a negative pressure fan 520. The second mounting bracket 510 is installed inside the vehicle body 2, and the negative pressure fan 520 is installed on the second mounting bracket 510. The box 600 has a garbage inlet 610 and an air outlet 620. The garbage inlet 610 is connected to the cleaning mechanism 300 through a pipe. The negative pressure generated by the negative pressure fan 520 causes the air inside the box 600 to be discharged from the air outlet 620. The box 600 has an upward opening and is closed by a box cover 630. A buffer barrier 640 is installed inside the garbage inlet 610, and an air filter 650 is installed inside the air outlet 620. A height sensor 660 is installed inside the box 600 to detect the height of the garbage inside the box.

[0071] Cooperate Figure 2 , Figures 13 to 19 As shown, the trash can 4 includes a body 600, a door 700, a self-locking component, and an unlocking component. The body 600 is located at the rear end of the chassis 100. The body 600 has a downward-sloping trash outlet 670. The door 700 is rotatably connected to the body 600. The self-locking component automatically locks the door 700 in the position of closing the trash outlet 670. The unlocking component is used to automatically release the lock of the door 700.

[0072] The container door 700 includes a panel 710, an inner door 720, and an outer door 730. The panel 710 is disposed on the container body 600 and has a clearance opening opposite to the garbage outlet 670. The inner door 720 is hinged to the top of the garbage outlet 670 via a hinge 740, and a sealing ring 680 is provided on the inner side of the inner door 720 to fit against the edge of the garbage outlet 670. The sealing ring 680 can better seal the garbage outlet 670 when the inner door 720 is closed. The outer door 730 is fixed in the inner door 720 and accommodated in the clearance opening. When the container door 700 is opened, the outer door 730 opens together with the inner door 720 opposite to the panel 710. The installation of the panel 710 can make the appearance of the garbage container 4 neater and more beautiful.

[0073] The container 600 is mounted on the chassis 100 via a third mounting bracket 110. The upper part of the container door 700 is rotatably connected to the top of the waste outlet 670. The self-locking assembly includes a self-locking element 810 and a self-locking rod 820. The self-locking element 810 is mounted on the container 600, and the self-locking rod 820 is mounted on the inside of the container door 700. Through the cooperation of the self-locking element 810 and the self-locking rod 820, the container door 700 is automatically locked in the position of closing the waste outlet 670. The unlocking assembly includes an unlocking element 910 and an unlocking rod 920. The unlocking element 910 is movably mounted relative to the self-locking element 810. The unlocking rod 920 pushes the unlocking element 910 to release the cooperation between the self-locking element 810 and the self-locking rod 820, so that the container door 700 can rotate and open relative to the waste outlet 670.

[0074] In this embodiment, self-locking components 810 and unlocking rods 920 are symmetrically arranged on the left and right sides of the box body 600, and two self-locking rods 820 are correspondingly arranged on the inner side of the box door 700. With the arrangement of two sets of self-locking components 810, unlocking rods 920 and self-locking rods 820, the locking and unlocking actions of the box door 700 can be made more reliable and smooth.

[0075] The self-locking component 810 includes a locking block 811 and a handle 812. The locking block 811 is hinged to the housing 600, and its center of gravity is located below its hinge point. The self-locking lever 820 has an upward-facing locking slot 821. Because the center of gravity of the locking block 811 is downward, it will fall into the locking slot 821 in its natural state, preventing the self-locking lever 820 from moving and thus locking the housing door 700. The locking block 811 extends upward relative to its hinge point to form the handle 812. The self-locking assembly also includes a limiting rod 830, which is located behind the handle 812 to limit the rotation angle of the locking block 811. By having the locking block 811, hinged to the housing 600, fall into the locking slot 821 of the self-locking lever 820, the locking block 811 achieves the sealing and locking of the housing door 700, which has the advantages of simple structure and reliable locking.

[0076] The unlocking component 910 includes a push plate 911, which is movably disposed on the side of the housing 600. The push plate 911 is connected to the unlocking rod 920. A push block 912 is disposed on the inner side of the push plate 911. The self-locking component 810 is disposed on the side of the housing 600. The push block 912 pushes the self-locking component 810 under the action of the unlocking rod 920.

[0077] Cooperate Figure 15 , Figure 16 , Figure 20As shown, the push plate 911 includes a base plate 9111, a side plate 9112, and a front baffle 9113. The base plate 9111 is parallel to the bottom surface of the waste outlet 670. The side of the base plate 9111 is bent to form the side plate 9112. The push block 912 is located inside the side plate 9112. The front end of the side plate 9112 is bent to form the front baffle 9113. The front baffle 9113 can push the door 700 open and, together with the base plate 9111, supports the opened door 700. At the same time, the base plate 9111 can also unload materials; that is, after the push plate 911 is pushed out, debris is discharged through the waste outlet 670 and the base plate 9111. The push plate 911 opens the door 700, and the base plate 9111 and the front baffle 9113 of the push plate can stably support the opened door 700, making the door 700 more stable after it is opened.

[0078] A guide seat 21 is provided inside the vehicle body, located below the housing 600. The unlocking rod 920 pushes the push plate 911 to move along the guide seat 21. In this embodiment, the bottom plate 9111 is bent on both sides to form side plates 9112, and the bottom plate 9111 and side plates 9112 are U-shaped. The unlocking rod 920 pushes the bottom plate 9111 to move along the guide seat 21. A second connecting seat 690 is provided on the side of the housing 600. The unlocking rod 920 is an electric push rod, a gas spring, or a hydraulic push rod. One end of the unlocking rod 920 is hinged to the second connecting seat 690, and the other end is connected to the push plate 911.

[0079] Cooperate Figures 14 to 16 , Figure 19 , Figure 20 As shown, the principle by which the container door 700 is locked in the closed garbage outlet 670 position is as follows: In the initial state, the upper end of the container door 700 is hinged to the container body 600, and the lower end closes the garbage outlet 670 under its own weight. At this time, the locking block 811 falls into the locking slot 821 of the self-locking rod 820, preventing the self-locking rod 820 from moving and locking the container door 700 in the closed garbage outlet 670 position. Simultaneously, in conjunction with the front baffle 9113 at the front end of the push plate 911, the opening of the container door 700 can be further restricted. Figure 21 As can be seen, the dotted line represents the possible movement trajectory of the door 700. When the door 700 rotates to the right around the hinge center at its upper end, the limit rod 830 blocks the handle 812 of the self-locking member 810, preventing the lock block 811 from disengaging from the lock opening 821, thus preventing the door 700 from opening.

[0080] Cooperate Figures 14 to 16 , Figure 20 , Figures 22 to 26As shown, the process of unlocking the bin door 700 so that it can rotate and open relative to the garbage outlet 670 is as follows: After the unlocking lever 920 is activated, it pushes the push plate 911 to move along the bin body 600 and the guide seat 21 towards the garbage outlet 670. As it continues to move, the push block 912 on the inner side of the push plate 911 pushes the handle 812 of the self-locking member 810. When the handle 812 is pushed to rotate towards the garbage outlet 670, the locking block 811 rotates in the opposite direction. After the push plate 911 moves a certain distance, the locking block 811 can disengage from the lock 821. At the same time, the front baffle 9113 at the front end of the push plate 911 pushes the bin door 700 to open. After the bin door 700 is opened, small stones, dust and other debris inside the bin body 600 can be discharged from the garbage outlet 670.

[0081] When the debris inside the container 600 is cleared and the container door 700 needs to be closed, the unlocking lever 920 resets, and the locking block 811 also resets under its own weight. Then, push the container door 700 towards the garbage outlet 670 so that the locking block 811 is engaged in the locking slot 821, thus locking the container door 700.

[0082] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A road sweeper, characterized in that: Including the chassis assembly, vehicle body, sweeper assembly, and garbage bin; The frame assembly includes a chassis and a first mounting bracket, the first mounting bracket being disposed at the front end of the chassis; The vehicle body is mounted on the chassis; The sweeping assembly includes a sweeping mechanism, a pusher mechanism, and a negative pressure mechanism. The sweeping mechanism and the pusher mechanism are respectively connected to the first mounting frame. The pusher mechanism can extend forward relative to the sweeping mechanism or retract upward relative to the sweeping mechanism. The negative pressure mechanism is located in the vehicle body and is used to create negative pressure to transport the garbage swept by the sweeping mechanism to the garbage bin. The trash can includes a body, a door, a self-locking component, and an unlocking component. The body is located at the rear end of the chassis and has a downward-sloping trash outlet. The door is rotatably connected to the body. The self-locking component automatically locks the door in a position that closes the trash outlet. The unlocking component is used to automatically release the lock on the door. The container body is mounted on the chassis via a third mounting bracket. The upper part of the container door is rotatably connected to the top of the waste outlet. The self-locking assembly includes a self-locking component and a self-locking rod. The self-locking component is disposed on the container body, and the self-locking rod is disposed on the inner side of the container door. Through the cooperation of the self-locking component and the self-locking rod, the container door is automatically locked in the position of closing the waste outlet. The unlocking assembly includes an unlocking component and an unlocking rod. The unlocking component is movably disposed relative to the self-locking component. The unlocking rod pushes the unlocking component to release the cooperation between the self-locking component and the self-locking rod, allowing the container door to rotate and open relative to the waste outlet. The self-locking component includes a locking block and a handle. The locking block is hinged to the box body, and the center of gravity of the locking block is located below its hinge point. The self-locking rod is provided with an upward-facing locking slot. The locking block falls into the locking slot to lock the box door. The locking block extends upward relative to its hinge point to form the handle. The self-locking assembly also includes a limiting rod, which is located on the rear side of the handle. The unlocking component includes a push plate, which is movably disposed on the side of the box. The push plate is connected to the unlocking rod. A push block is disposed on the inner side of the push plate. The self-locking component is disposed on the side of the box. The push block pushes the self-locking component under the action of the unlocking rod. The push plate includes a bottom plate, a side plate, and a front baffle. The bottom plate is parallel to the bottom surface of the waste outlet. The side of the bottom plate is bent to form a side plate. The push block is disposed on the inner side of the side plate. The front end of the side plate is bent to form a front baffle. The front baffle can push the box door open and, together with the bottom plate, supports the opened box door.

2. The road sweeper as described in claim 1, characterized in that: The sweeping mechanism includes a sweeping bracket, a disc brush, and a suction nozzle. The sweeping bracket is connected to the first mounting frame, and the disc brush and suction nozzle are mounted on the sweeping bracket. The suction nozzle is connected to the trash can through a pipe to collect trash. The pusher mechanism includes a linkage assembly, a pusher bucket, and a first driving member. One end of the linkage assembly is hinged to the first mounting frame, and the other end is connected to the pusher bucket. Under the drive of the first driving member, the linkage assembly drives the pusher bucket to move relative to the disc brush.

3. A road sweeper as described in claim 2, characterized in that: The number of linkage assemblies is two sets, and the first driving member is two correspondingly arranged. The linkage assembly includes a connecting rod, a swing rod and a driving rod. One end of the connecting rod is hinged to the first mounting frame and the other end is hinged to the swing rod. A connecting rod is connected between the swing rods of the two linkage assemblies. The push bucket is connected to the swing rod. One end of the driving rod is connected to the first driving member and the other end is hinged to the connecting rod.

4. A road sweeper as described in claim 3, characterized in that: The connecting rod includes a first rod and a second rod, which are arranged parallel to each other vertically and are respectively hinged to the end of the swing rod. The upper end of the driving rod is hinged to the second rod.

5. A road sweeper as described in claim 2, characterized in that: The cleaning mechanism further includes a lifting assembly, which includes a drive arm and a second drive member. One end of the drive arm is hinged to the first mounting frame and the other end is connected to the cleaning bracket. The second drive member is disposed on the first mounting frame and drives the cleaning bracket to lift and lower through the drive arm.

6. A road sweeper as described in claim 1, characterized in that: The negative pressure mechanism includes a second mounting bracket and a negative pressure fan. The second mounting bracket is disposed in the vehicle body, and the negative pressure fan is disposed on the second mounting bracket. The box has a garbage inlet and an air outlet. The garbage inlet is connected to the cleaning mechanism through a pipe. The negative pressure generated by the negative pressure fan causes the air in the box to be discharged from the air outlet.

7. A road sweeper as described in claim 1, characterized in that: A guide seat is provided inside the vehicle body, and the guide seat is located below the box body. The unlocking rod pushes the push plate to move along the guide seat.

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