Sweeper chassis turnover mechanism

Abstract

The utility model discloses a kind of sweeping vehicle chassis turnover mechanisms, belong to sanitation equipment manufacturing technical field.The mechanism includes portal frame, vertical lifting unit, synchronous drive unit, clamping arm unit and turnover clamping unit.Vertical lifting unit is installed in portal frame top crossbeam, and its bottom is connected with synchronous drive unit;Synchronous drive unit includes the horizontal slide rail with double thread screw rod inside, and two screw rod bases can be made to move synchronously towards or away from by the driving of stepper motor;Screw rod base is connected with the clamping arm unit of two sides by the guide slot on horizontal slide rail, and rotatable turnover clamping unit is installed in the lower end of clamping arm unit.The utility model cooperates by electric control system control each unit, realizes the automatic clamping of sweeping vehicle chassis, lifting, synchronous movement and accurate turnover, effectively solve the problems, such as low efficiency, poor safety, easily damaged workpiece and insufficient adaptability, etc.

Description

Technical Field

[0001] This utility model relates to the technical field of sweepers, and in particular to a sweeper chassis tilting mechanism. Background Technology

[0002] As an important piece of sanitation equipment, the chassis of a sweeper truck is the core load-bearing and transmission component of the entire vehicle, integrating a variety of complex parts such as the engine, gearbox, axles, and water tank. During the manufacturing, assembly, and subsequent maintenance of the chassis, it is often necessary to flip it over to facilitate welding, painting, component installation, or repair work on the bottom of the chassis.

[0003] Currently, the tilting of large and heavy workpieces such as sweeper chassis mainly relies on overhead cranes (bridge cranes) with slings, or manual operation using simple fixed tilting frames. Overhead crane tilting has significant drawbacks: First, it requires highly skilled and experienced operators to balance the chassis; the tilting process involves significant shaking, poor positioning accuracy, and a high risk of collisions with surrounding equipment or personnel, posing significant safety hazards; second, the slings may scratch or crush the chassis paint or precision components; third, the entire tilting process is inefficient, requiring multiple operators and increasing labor costs.

[0004] While fixed tilting frames offer some support, they typically lack flexible adjustment capabilities. Different sweeper chassis vary significantly in size, weight, and center of gravity, making it difficult for existing tilting frames to quickly adapt to different chassis specifications. Adjusting the clamping position and tilting center often requires cumbersome manual operation, sometimes even necessitating the use of additional tools, failing to meet the efficient and flexible operational demands of modern production lines. Furthermore, traditional tilting mechanisms struggle to ensure synchronization on both sides of the chassis during clamping and tilting, potentially leading to uneven stress and deformation.

[0005] Therefore, there is an urgent need in this field for a specialized mechanism that is highly automated, easy to adjust, stable in operation, and can safely and reliably complete the tilting operation of the sweeper chassis, in order to overcome the above-mentioned shortcomings in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a sweeper chassis tilting mechanism to overcome the shortcomings of the prior art.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] The sweeper chassis tilting mechanism includes a gantry frame. A vertical lifting unit is mounted on the top crossbeam of the gantry frame, and a synchronous drive unit is mounted at the bottom of the vertical lifting unit. The vertical lifting unit can drive the synchronous drive unit to move up and down. The synchronous drive unit includes a transverse slide rail, a double-threaded screw, a stepper motor, and a screw seat. The lower end of the vertical lifting unit is fixedly connected to the middle of the transverse slide rail. The transverse slide rail has a hollow cavity along its axial direction. The double-threaded screw is arranged along the axial direction of the slide rail. The stepper motor is fixed to one end of the transverse slide rail, and its drive shaft is connected to one end of the double-threaded screw. The left and right halves of the double-threaded screw are respectively provided with threads in opposite directions. Screw seats are respectively mounted on the left and right halves of the double-threaded screw, and the screw seats are located in the hollow cavity of the transverse slide rail. The stepper motor drives the double-threaded screw to move up and down. When the screw rotates, the two screw seats can move simultaneously toward the middle of the double screw or simultaneously toward both ends of the double screw. The left and right sides of the transverse slide rail are respectively provided with guide grooves extending along the slide rail axis. The guide grooves pass through the hollow cavity and outer side of the transverse slide rail. The left and right sides of the outer side of the transverse slide rail are respectively equipped with a clamping arm unit. The upper end of the clamping arm unit can slide horizontally on the transverse slide rail. At the same time, the clamping arm unit is also fixedly connected to the corresponding screw seat through the guide groove. The lower end of the clamping arm unit is equipped with a flipping clamping unit. The flipping clamping unit can rotate relative to the lower end of the clamping arm unit. When the screw seat drives the two clamping arm units to move closer to each other, the two flipping clamping units also move closer to each other and clamp the sweeper chassis. The flipping clamping unit rotates relative to the lower end of the clamping arm unit to flip the sweeper chassis.

[0009] Further improvements to optimize the technical solution include:

[0010] The aforementioned gantry frame is equipped with two gantry columns and a top crossbeam. The lower ends of the gantry columns are fixed to the ground, and the upper ends are fixedly connected to both ends of the top crossbeam.

[0011] The aforementioned vertical lifting unit includes a lifting motor, a lifting motor mounting bracket, a lifting fixed bracket, a meshing rack, and a lifting movable bracket. The lifting fixed bracket is fixedly installed on the top crossbeam, the lifting motor mounting bracket is fixedly installed on the lifting fixed bracket, and the lifting motor is fixedly installed on the lifting motor mounting bracket. The lifting movable bracket is slidably installed on the lifting fixed bracket. The lower end of the lifting movable bracket is fixedly connected to the middle of the transverse slide rail. A vertically arranged meshing rack is fixedly installed on the lifting movable bracket. A transmission gear is coaxially installed on the motor shaft of the lifting motor. The transmission gear meshes with the meshing rack. When the lifting motor rotates, it can drive the lifting movable bracket to move up and down through the transmission gear and the meshing rack.

[0012] The aforementioned lifting and moving frame is equipped with a vertical guide rail, and the lifting and fixed frame is fixedly equipped with a sliding protrusion. The sliding protrusion is locked on the guide rail and can move up and down relative to the guide rail.

[0013] The aforementioned lifting and moving frame is equipped with position sensors at both the upper and lower ends. The position sensors are used to sense the distance between the upper and lower ends of the lifting and moving frame and the lifting fixed frame. The position sensors are connected to the lifting motor signal and can stop the lifting motor.

[0014] The aforementioned synchronous drive unit also includes a lead screw positioning end, which is fixedly installed at both ends of the transverse slide rail, and the two ends of the double-threaded lead screw are rotatably positioned on the lead screw positioning end.

[0015] The aforementioned stepper motor is fixedly mounted on a stepper motor mounting base, which in turn is fixedly mounted on the lead screw positioning end.

[0016] The aforementioned clamping arm unit includes a clamping arm slide, a clamping arm rod, and a flip clamping unit mounting base. The clamping arm slide is fixed to the upper end of the clamping arm rod and is slidably mounted on the transverse slide rail. The clamping arm slide is also fixedly connected to the corresponding lead screw seat through a guide groove. The flip clamping unit mounting base is fixed to the lower end of the clamping arm rod, and the flipping motor of the flip clamping unit is fixed on the flip clamping unit mounting base.

[0017] The aforementioned flip clamping unit includes a flip motor, a flip shaft, and a flip gripper. The motor shaft of the flip motor is fixedly connected to one end of the flip shaft, and the other end of the flip shaft is fixedly connected to the flip gripper. The flip motor can drive the flip shaft to rotate, thereby driving the flip gripper to rotate.

[0018] The aforementioned flip motor is connected to a reducer. The motor shaft of the flip motor is connected to the input end of the reducer, the output end of the reducer is fixedly connected to one end of the flip shaft, the housing of the flip motor is fixedly connected to the housing of the reducer, and the housing of the reducer is fixed on the flip clamping unit mounting base.

[0019] The technical advantages of this utility model are as follows:

[0020] 1. This utility model achieves automatic clamping, lifting, tilting, and placement of the sweeper chassis through the coordinated electronic control operation of the vertical lifting unit, synchronous drive unit, and tilting clamping unit. The entire process requires no multiple people to work together, reducing reliance on manpower, eliminating tedious manual operations, and significantly improving the work efficiency and automation level of chassis assembly or maintenance lines.

[0021] 2. This invention ensures the smoothness and synchronization of the flipping process, effectively protecting the workpiece: The synchronous drive unit adopts a design where a single double-threaded lead screw simultaneously drives two lead screw seats, fundamentally guaranteeing the absolute synchronization of the movement of the clamping arm units on both sides. This ensures that the chassis is always subjected to uniform force during clamping and flipping, avoiding chassis structural deformation or surface damage caused by asynchrony. The vertical lifting unit operates smoothly through gear and rack transmission, further ensuring the safety and reliability of the entire flipping process.

[0022] 3. This utility model enhances the safety and reliability of the equipment: the upper and lower position sensors set in the vertical lifting unit can automatically detect the lifting limit position and stop the motor in time, effectively preventing mechanical damage or safety accidents caused by overtravel, and realizing automatic protection and intelligent control of the equipment.

[0023] 4. The stepper motor in the synchronous drive unit of this invention can precisely control the opening and closing distance of the two clamping arm units, thereby adapting to sweeper chassis of different widths. This flexible adjustment capability enables the mechanism to be widely used in chassis tilting operations of various vehicle models, meeting the needs of modern production lines for flexibility and intelligence.

[0024] 5. This utility model cleverly integrates a double-threaded lead screw into the hollow cavity of the transverse slide rail, with the lead screw seat also moving internally. The structure is compact, effectively utilizing space while reducing external interference, resulting in good overall rigidity and stable operation. The modular design of each functional unit provides clear hierarchy and convenient maintenance. Attached Figure Description

[0025] Figure 1 This is the front view of this utility model;

[0026] Figure 2 This is a perspective view of the present invention;

[0027] Figure 3 This is a schematic diagram showing the transmission gears and meshing rack after removing the lifting motor mounting bracket and part of the lifting fixing bracket;

[0028] Figure 4 This is a schematic diagram showing the guide rails and sliding protrusions after part of the lifting and fixing frame has been removed;

[0029] Figure 5 This is a schematic diagram of the transverse slide rail after the clamping arm unit has been removed;

[0030] Figure 6 This is a schematic diagram of the double-threaded lead screw and lead screw seat inside the transverse slide rail.

[0031] The attached diagram is labeled as follows: gantry frame 1, top beam 11, gantry column 12, vertical lifting unit 2, lifting motor 21, transmission gear 21a, lifting motor mounting bracket 22, lifting fixed bracket 23, sliding cam 23a, meshing rack 24, lifting moving frame 25, guide slide rail 25a, positioning sensor 26, synchronous drive unit 3, transverse slide rail 31, guide groove 31a, double threaded screw 32, stepper motor 33, screw seat 34, screw positioning end 35, stepper motor mounting base 36, clamping arm unit 4, clamping arm slide 41, clamping arm rod 42, flip clamping unit mounting base 43, flip clamping unit 5, flip motor 51, flip shaft 52, flip clamp 53, reducer 54. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0033] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0034] This utility model discloses a sweeper chassis tilting mechanism, such as Figure 1-6 As shown, the sweeper chassis tipping mechanism mainly includes a stable gantry frame 1. The gantry frame 1 is constructed by welding or bolting together two gantry columns 12 with their lower ends fixed to the ground and a top crossbeam 11 connecting the tops of the two columns, providing support for the entire mechanism. A vertical lifting unit 2 is installed on the top crossbeam 11, and a synchronous drive unit 3 is suspended at its bottom. A set of clamping arm units 4 is installed at each end of the synchronous drive unit 3, and each clamping arm unit 4 has a tipping clamping unit 5 at its end.

[0035] The vertical lifting unit 2 is responsible for the overall lifting of the entire gripping mechanism to accommodate chassis of different heights and provide the lifting space required for tilting. The vertical lifting unit 2 mainly includes a lifting motor 21, a lifting motor mounting bracket 22, a lifting fixed bracket 23, a rack 24, and a lifting moving bracket 25. The lifting fixed bracket 23 is securely mounted on the top crossbeam 11 of the gantry frame 1 with bolts. The lifting motor mounting bracket 22 is fixed to the lifting fixed bracket 23 and is used to mount the lifting motor 21. The lifting moving bracket 25 is slidably mounted on the lifting fixed bracket 23 via a sliding assembly. Specifically, a vertical guide rail 25a is fixedly mounted on the lifting moving bracket 25, while a sliding protrusion 23a that mates with the guide rail 25a is fixedly mounted on the lifting fixed bracket 23. The sliding protrusion 23a is engaged with the guide rail 25a, thus ensuring that the lifting moving bracket 25 can only move smoothly in the vertical direction without deflection or swaying.

[0036] The rack 24 is vertically fixed on the lifting frame 25. A transmission gear 21a is coaxially mounted on the output shaft of the lifting motor 21, and the transmission gear 21a is meshed with the rack 24. When the lifting motor 21 starts, the rotational motion of the motor can be converted into the precise linear lifting motion of the lifting frame 25 through the meshing transmission of the gear 21a and the rack 24.

[0037] To ensure safety and prevent collisions caused by overtravel of the lifting frame 25, position sensors 26 are installed at both the upper and lower ends of the lifting frame 25. These position sensors 26 can be contact limit switches or non-contact photoelectric sensors. These sensors detect the upper and lower limit positions of the lifting frame 25 relative to the lifting fixed frame 23 and are connected to the lifting motor 21. Once the frame reaches its limit position, the sensor immediately sends a signal to stop the lifting motor 21.

[0038] The synchronous drive unit 3 is the core component for achieving synchronous opening and closing of the two clamping arms, ensuring uniform force distribution when gripping the chassis. The synchronous drive unit 3 mainly includes a transverse slide rail 31, a double-threaded lead screw 32, a stepper motor 33, two lead screw seats 34, lead screw positioning ends 35, and a stepper motor mounting base 36. The upper surface of the middle section of the transverse slide rail 31 is fixedly connected to the lower end of the lifting frame 25 of the vertical lifting unit 2, allowing it to rise and fall together. A hollow cavity is machined along the axial direction inside the transverse slide rail 31. The double-threaded lead screw 32 is rotatably supported and mounted within this hollow cavity via the lead screw positioning ends 35 at both ends. The double-threaded lead screw 32 is characterized by having a left-hand thread and a right-hand thread machined on one of its leads. The stepper motor 33 is fixedly mounted on one of the lead screw positioning ends 35 via the stepper motor mounting base 36, and its output shaft is connected to one end of the double-threaded lead screw 32 via a coupling, used to drive its forward and reverse rotation. Two lead screw seats 34 are respectively screwed onto the left-hand and right-hand threaded sections of the double-threaded lead screw 32 and housed within the hollow cavity of the transverse slide rail 31. On the left and right side walls of the transverse slide rail 31, a guide groove 31a extending axially is provided, which connects the hollow cavity to the outside.

[0039] The clamping arm unit 4 connects the synchronous drive unit and the flipping clamping unit, and transmits the linear motion of the lead screw seat. Each clamping arm unit 4 includes a clamping arm slide 41, a clamping arm rod 42, and a flipping clamping unit mounting base 43. The clamping arm slide 41 is slidably mounted on the transverse slide rail 31 and can slide horizontally along it. At the same time, the inner side of the clamping arm slide 41 is fixedly connected to the lead screw seat 34 inside the cavity by fasteners such as bolts passing through the guide groove 31a. The upper end of the clamping arm rod 42 is fixed to the clamping arm slide 41, and the lower end is fixed to the flipping clamping unit mounting base 43.

[0040] The flip-grip unit 5 is an end effector that directly performs gripping and flipping actions. It mainly includes a flip motor 51, a flip shaft 52, and a flip gripper 53. The housing of the flip motor 51 is bolted to the flip-grip unit mounting base 43. The output shaft of the flip motor 51 is connected to one end of the flip shaft 52, and the other end of the flip shaft 52 is fitted with a flip gripper 53 for gripping the chassis beam or specific parts. The flip gripper 53 can be designed as a V-block, a claw, or other form depending on the specific structure of the chassis.

[0041] To obtain greater output torque and ensure stability when tilting heavy-duty chassis, a reducer 54 is connected to the output end of the tilting motor 51. The output shaft of the tilting motor 51 is connected to the input end of the reducer 54, and the output end of the reducer 54 is then connected to the tilting shaft 52. The housing of the reducer 54 is fixed to both the housing of the tilting motor 51 and the tilting clamping unit mounting base 43.

[0042] The workflow of this utility model is as follows:

[0043] Initial standby: The entire mechanism is in the initial position, and the two clamping arm units 4 are in the open state under the drive of the synchronous drive unit 3.

[0044] Alignment Adjustment: The operator or AGV transports the sweeper chassis to a suitable position below the gantry 1. The vertical lifting unit 2 operates, adjusting the height of the synchronous drive unit 3 and the clamping arm unit 4 so that the flipping gripper 53 is aligned with the clamping points on both sides of the chassis.

[0045] Clamping the chassis: Stepper motor 33 starts, driving the double-threaded lead screw 32 to rotate. Due to the double-threaded design, the two lead screw seats 34 drive the clamping arm units 4 on both sides to move synchronously in opposite directions until the flipping grippers 53 on both sides firmly clamp the chassis.

[0046] Lifting the chassis: The lifting motor 21 of the vertical lifting unit 2 is started, and the entire synchronous drive unit 3, clamping arm unit 4 and the clamped chassis are lifted upward through the gear and rack mechanism, so that the chassis is lifted off the transport trolley or the ground.

[0047] Tilting operation: The tilting motors 51 on both sides (after torque amplification by reducer 54) start synchronously, driving the tilting shaft 52 and tilting gripper 53 to rotate, thereby driving the clamped chassis to rotate precisely (e.g., rotate 180°) in order to carry out operations on the bottom of the chassis.

[0048] Reset and Lowering: After the operation is completed, the flipping motor 51 rotates in the opposite direction, flipping the chassis back to its original position. The vertical lifting unit 2 lowers the chassis onto the transport vehicle. Finally, the stepper motor 33 reverses, causing the two clamping arms to release the chassis, and the entire mechanism resets, ready for the next operation cycle.

[0049] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A sweeper chassis roll-over mechanism characterized by: The system includes a gantry frame (1), on which a vertical lifting unit (2) is installed on the top crossbeam (11). A synchronous drive unit (3) is installed at the bottom of the vertical lifting unit (2). The vertical lifting unit (2) can drive the synchronous drive unit (3) to move up and down. The synchronous drive unit (3) includes a transverse slide rail (31), a double-threaded lead screw (32), a stepper motor (33), and a lead screw seat (34). The lower end of the vertical lifting unit (2) is fixedly connected to the middle of the transverse slide rail (31). The transverse slide rail (31) has a hollow cavity along the slide rail axis. A double-threaded lead screw (32) is arranged along the slide rail axis. A stepper motor (33) is fixed to one end of the transverse slide rail (31). The drive shaft of the stepper motor (33) is connected to one end of the double-threaded lead screw (32). The left and right halves of the double-threaded lead screw (32) are respectively provided with threads of opposite directions. Lead screw seats (34) are respectively installed on the left and right halves of the double-threaded lead screw (32). The lead screw seats (34) are located in the hollow cavity of the transverse slide rail (31). The stepper motor ( 33) When the double-threaded lead screw (32) is driven to rotate, the two lead screw seats (34) can move simultaneously closer to the middle of the double-threaded lead screw (32) or simultaneously move closer to both ends of the double-threaded lead screw (32). The left and right parts of the transverse slide rail (31) are respectively provided with guide grooves (31a) extending along the slide rail axis. The guide grooves (31a) penetrate the hollow cavity and outer side of the transverse slide rail (31). The left and right parts of the outer side of the transverse slide rail (31) are respectively equipped with a clamping arm unit (4). The upper end of the clamping arm unit (4) can move laterally. The arm slides horizontally on the rail (31), and the arm clamp unit (4) is also fixedly connected to the corresponding screw seat (34) through the guide groove (31a). The lower end of the arm clamp unit (4) is equipped with a flip clamping unit (5). The flip clamping unit (5) can rotate relative to the lower end of the arm clamp unit (4). When the screw seat (34) drives the two arm clamp units (4) to approach each other, the two flip clamping units (5) also approach each other and clamp the sweeper chassis. The flip clamping unit (5) rotates relative to the lower end of the arm clamp unit (4) to flip the sweeper chassis.

2. The sweeper chassis tipping mechanism according to claim 1, characterized in that: The gantry frame (1) is provided with two gantry columns (12) and a top beam (11). The lower end of the gantry column (12) is fixed to the ground, and the upper end is fixedly connected to both ends of the top beam (11).

3. The sweeper chassis roll-over mechanism of claim 1 wherein: The vertical lifting unit (2) includes a lifting motor (21), a lifting motor mounting bracket (22), a lifting fixed bracket (23), a meshing rack (24), and a lifting movable bracket (25). The lifting fixed bracket (23) is fixedly installed on the top crossbeam (11), the lifting motor mounting bracket (22) is fixedly installed on the lifting fixed bracket (23), the lifting motor (21) is fixedly installed on the lifting motor mounting bracket (22), and the lifting movable bracket (25) is slidably installed on the lifting fixed bracket. On the frame (23), the lower end of the lifting and moving frame (25) is fixedly connected to the middle of the transverse slide rail (31). The lifting and moving frame (25) is fixedly installed with a vertically arranged meshing rack (24). The motor shaft of the lifting motor (21) is coaxially mounted with a transmission gear (21a). The transmission gear (21a) meshes with the meshing rack (24). When the lifting motor (21) rotates, it can drive the lifting and moving frame (25) to move up and down through the transmission gear (21a) and the meshing rack (24).

4. The sweeper chassis roll-over mechanism of claim 3 wherein: The lifting and moving frame (25) is provided with a vertical guide rail (25a), and the lifting and fixing frame (23) is fixedly provided with a sliding protrusion (23a). The sliding protrusion (23a) is stuck on the guide rail (25a), and the sliding protrusion (23a) can move up and down relative to the guide rail (25a).

5. The sweeper chassis tipping mechanism according to claim 4, characterized in that: The upper and lower ends of the lifting moving frame (25) are equipped with positioning sensors (26). The positioning sensors (26) are used to sense the distance between the upper and lower ends of the lifting moving frame (25) and the lifting fixed frame (23). The positioning sensors (26) are connected to the lifting motor (21) and can stop the lifting motor (21).

6. The sweeper chassis roll-over mechanism of claim 1 wherein: The synchronous drive unit (3) further includes a lead screw positioning end (35), which is fixedly installed at both ends of the transverse slide rail (31), and the two ends of the double threaded lead screw (32) are rotatably positioned on the lead screw positioning end (35).

7. The sweeper chassis roll-over mechanism of claim 6 wherein: The stepper motor (33) is fixedly mounted on the stepper motor mounting base (36), and the stepper motor mounting base (36) is fixedly mounted on the lead screw positioning end (35).

8. The sweeper chassis tipping mechanism according to claim 3, characterized in that: The clamping arm unit (4) includes a clamping arm slide (41), a clamping arm rod (42), and a flip clamping unit mounting base (43). The clamping arm slide (41) is fixed to the upper end of the clamping arm rod (42). The clamping arm slide (41) is slidably arranged on the transverse slide rail (31). At the same time, the clamping arm slide (41) is also fixedly connected to the corresponding lead screw seat (34) through the guide groove (31a). The flip clamping unit mounting base (43) is fixed to the lower end of the clamping arm rod (42). The flipping motor (51) of the flip clamping unit (5) is fixed on the flip clamping unit mounting base (43).

9. The sweeper chassis roll-over mechanism of claim 8 wherein: The flip clamping unit (5) includes a flip motor (51), a flip shaft (52), and a flip gripper (53). The motor shaft of the flip motor (51) is fixedly connected to one end of the flip shaft (52), and the other end of the flip shaft (52) is fixedly connected to the flip gripper (53). The flip motor (51) can drive the flip shaft (52) to rotate, thereby driving the flip gripper (53) to rotate.

10. The sweeper chassis tipping mechanism according to claim 8, characterized in that: The flip motor (51) is connected to a reducer (54). The motor shaft of the flip motor (51) is connected to the input end of the reducer (54). The output end of the reducer (54) is fixedly connected to one end of the flip shaft (52). The housing of the flip motor (51) is fixedly connected to the housing of the reducer (54). The housing of the reducer (54) is fixed on the flip clamping unit mounting base (43).

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