Lifting and rotating linkage device of sweeper and sanitation vehicle

Abstract

The utility model relates to the technical field of sanitation truck cleaning, and particularly discloses a sweeper lifting and rotating linkage device and a sanitation truck, the sweeper lifting and rotating linkage device comprises a driving oil cylinder, a base of the driving oil cylinder is rotatably connected with a rack, and an execution end of the driving oil cylinder is rotatably connected with a support in a first vertical plane; the support is rotatably connected with a brush disc in the second vertical plane, the first vertical plane is perpendicular to the second vertical plane, and a bidirectional self-resetting damping rod working vertically is further arranged between the brush disc and the support. The linkage device solves the problem that a traditional sanitation vehicle does not have a brush disc inclination angle adjusting function or the brush disc inclination angle cannot be automatically adjusted, the sweeping effect and the utilization rate of the vehicle are improved, and the problem of space occupation is solved.

Description

Technical Field

[0001] This utility model relates to the field of sanitation vehicle cleaning technology, specifically to a lifting and rotating linkage device for a sweeping brush and a sanitation vehicle. Background Technology

[0002] Sweeping brushes are essential working devices for most sanitation vehicles whose main functions are sweeping or washing. The operation of a sweeping brush requires the brush disc to form a certain forward tilt angle with the ground. Only when the disc-type brush contacts the ground can it sweep garbage to the side near the suction port, and under the influence of the tilt angle, the garbage detaches from the brush and is thrown into the suction port's optimal pickup position by inertia. Currently, the forward tilt angle of most sweeping brushes is manually adjusted. This operation requires manual intervention, which is extremely inconvenient, time-consuming, and labor-intensive due to the bulky brush disc. Furthermore, this fixed-angle brush disc, due to its tilt, occupies space during the brush's retraction, affecting the ground clearance. These two drawbacks become more pronounced as the brush disc size increases, impacting the utilization rate of the upper structure's effective volume in small vehicles or sanitation vehicles with compact layouts.

[0003] Some existing technologies use electric devices to drive the brush disc tilting motion. Although this method makes brush disc adjustment more convenient, it still cannot effectively solve the problems of occupying brush disc lifting space and ground clearance. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses a lifting and rotating linkage device for a sweeping brush and a sanitation vehicle. This linkage device solves the problem that traditional sanitation vehicles do not have a brush tilt angle adjustment function or the brush tilt angle cannot be automatically adjusted. It not only improves the cleaning effect and vehicle utilization rate but also solves the space occupation problem.

[0005] A lifting and rotating linkage device for a sweeping brush includes a drive cylinder. The base of the drive cylinder is rotatably connected to a frame. The actuator of the drive cylinder is rotatably connected to a bracket in a first vertical plane. The bracket is rotatably connected to a brush disc in a second vertical plane. The first vertical plane and the second vertical plane are perpendicular to each other. A bidirectional self-resetting damping rod that works vertically and provides rotational driving force for the brush disc is also provided between the brush disc and the bracket.

[0006] Preferably, the bracket is provided with a limiting mechanism for limiting the rotation angle of the brush disc.

[0007] Preferably, the limiting mechanism includes an arc-shaped groove disposed in a second vertical plane on the bracket, a limiting bolt slidably connected in the arc-shaped groove, and the end of the limiting bolt being connected to the brush plate.

[0008] Preferably, the upper end of the brush disk is connected to the upper end of the bidirectional self-resetting damping rod.

[0009] Preferably, a connecting rod mechanism is hinged between the frame and the support.

[0010] Preferably, the connecting rod mechanism comprises an upper connecting rod at the upper portion and a lower connecting rod at the lower portion, and the frame, the upper connecting rod, the support and the lower connecting rod form a quadrilateral structure.

[0011] Preferably, a rotating frame is hinged to the frame in a horizontal plane, and one end of the connecting rod mechanism and the base of the driving oil cylinder are both hinged to the rotating frame in a first vertical plane.

[0012] Preferably, an obstacle-avoiding spring working in a transverse direction is arranged between the rotating frame and the frame.

[0013] Preferably, a first limiting screw limiting the rotating angle of the rotating frame is arranged between the rotating frame and the frame.

[0014] Preferably, a second limiting screw limiting the lifting height of the connecting rod mechanism is arranged between the rotating frame and the connecting rod mechanism.

[0015] The utility model discloses still a kind of sanitation vehicle, the sanitation vehicle has the lifting and rotating linkage device of brush as described above.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1, the utility model discloses when driving support lifting of oil cylinder, brush disc is moved by bidirectional self-resetting damper rod, realize the rotation of brush disc around support while lifting, and then realize the angle inclination action of brush disc, when brush disc rotates, limiting bolt slides along arc-shaped groove, when limiting bolt slides to the end of arc-shaped groove, bidirectional self-resetting damper rod is driven to brush disc by its own damping deformation, so that brush disc stops rotating, but brush disc will continue to rise or drop under the action of driving oil cylinder, change ground clearance.

[0018] 2, the setting of obstacle-avoiding spring and limiting screw can effectively protect the safety of brush main body, prevent brush damage caused by motion transition. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front overall structure diagram of the lifting and rotating linkage device of brush Figure 1 ;

[0020] Figure 2 is Figure 1 a partial enlarged view of A in figure 1;

[0021] Figure 3 is a front overall structure schematic diagram of the lift-rotation linkage device of the brush after removing part of the structure Figure 2 ;

[0022] Figure 4 is Figure 3 a partial enlarged view of B in figure 1;

[0023] Figure 5 is a front overall structure schematic diagram of the lift-rotation linkage device of the brush Figure 3 ;

[0024] Figure 6 is Figure 5 a partial enlarged view of C in figure 1;

[0025] Figure 7 is a back overall structure schematic diagram of the lift-rotation linkage device of the brush;

[0026] Figure 8 is Figure 7 a partial enlarged view of D in figure 1;

[0027] Figure 9 is Figure 7 a partial enlarged view of E in figure 1;

[0028] Figure 10 is Figure 7 a partial enlarged view of F in figure 1;

[0029] In the figure, 1 is a frame, 2 is a rotating frame, 3 is a brush disc, 4 is an upper connecting rod, 5 is a bidirectional self-resetting damping rod, 6 is a transfer rod, 7 is a limiting bolt, 8 is a pin shaft, 9 is a driving oil cylinder, 10 is a second limiting screw, 11 is a lower connecting rod, 12 is a support, 13 is a first limiting screw, 14 is an obstacle-avoiding spring, 15 is a rotating shaft, 16 is a transverse arc-shaped groove, 17 is a brush disc connecting plate, and 18 is a hinged point. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clearly and clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0031] The first vertical plane of the utility model is the XZ plane shown in Figure 2 , Figure 4 and Figure 8 , Figure 2 ,Figure 4 and Figure 8 the YZ plane shown in Figure 2 , Figure 4 and Figure 8 the XY plane shown in

[0032] As shown in Figures 1-10 , the utility model discloses a lift rotating linkage device of brush, the structure of this linkage device is roughly a quadrilateral structure, and the linkage device is arranged with a set at the left and right sides of the frame 1 at brush. Specifically, install a rotating frame 2 on the left and right sides of the frame 1. As shown in Figure 6 and Figure 10 , the rotating frame 2 is rotatably connected with the frame 1 in the horizontal plane through the vertical setting pivot 15. The driving oil cylinder 9 is rotatably connected in the first vertical plane in the lower part of the rotating frame 2, and the execution end of the upper part of the driving oil cylinder 9 is rotatably connected to the upper end side of the support 12 in the first vertical plane, and the support 12 is further stably supported by the upper link 4 hingedly installed on the upper part of the rotating frame 2, and the other end of the upper link 4 is hingedly connected to the upper part of the support 12. As shown in Figure 9 , the lower link 11 is installed on the lower part of the rotating frame 2, and the other end of the lower link 11 is hingedly connected to the lower part of the support 12 at the hinged point 18 shown in Figure 9 . The rotating frame 2, the upper link 4, the support 12 and the lower link 11 form a four-edge structure linkage mechanism. Under the driving of the driving oil cylinder 9, through the four-edge structure, when the driving oil cylinder 9 is telescopic, the lower link 11 can rotate in the first vertical plane with the mounting point between the driving oil cylinder 9 and the rotating frame 2 as the center, and since the rotating frame 2, the upper link 4, the support 12 and the lower link 11 form a four-edge structure linkage mechanism, the support 12 finally realizes the lifting or lowering action of the brush disc 3 under the comprehensive movement of the linkage mechanism.

[0033] As shown in Figure 2 , Figure 4 and Figure 8 , a bidirectional self-resetting damping rod 5 is installed on the support 12, and the other end of the bidirectional self-resetting damping rod 5 is hingedly connected to the support 12 at the fulcrum 19 shown in Figure 4 , the upper end of the bidirectional self-resetting damping rod 5 is hingedly connected to the upper end of the adapter rod 6, and the adapter rod 6 is connected to the brush disc connecting plate 17 on the upper part of the brush disc 3 through the limiting bolt 7 and the pin shaft 8. The limiting bolt 7 and the pin shaft 8 are installed on the adapter rod 6 from top to bottom in sequence, and the transverse arc-shaped slot 16 shown in Figure 4 and Figure 8 is arranged on the support 12 in the second vertical plane, the limiting bolt 7 can slide in the second plane along the transverse arc-shaped slot, and the pin shaft 8 hingedly connects the brush disc 3 and the support 12 through the adapter rod 6, so that the brush disc 3 can rotate in the second vertical plane relative to the support 12 with the pin shaft 8 as the center.

[0034] When the driving oil cylinder 9 is elongated or contracted, the bidirectional self-resetting damping rod 5 and the brush disc 3 are driven to rotate around the hinge point 18 and to lift in the first vertical plane at the same time, due to the fact that the brush disc 3 is hinged with the support 12 in the second vertical plane and the bidirectional self-resetting damping rod 5 is hinged with the lower connecting rod 11 in the first vertical plane, the rotating radius of the two is not the same, under the self weight of the brush disc 3 and the hinge effect of the pin shaft 8 on the support 12 and the brush disc 3, the adapter rod 6 connected with the upper end of the bidirectional self-resetting damping rod 5 drives the limiting bolt 7 to slide along the transverse arc-shaped slot 16 on the support 12, the rotation of the brush disc 3 along the support 12 in the second vertical plane is realized, at the same time, since the support 12 will lift along with the elongation or contraction of the driving oil cylinder 9, the brush disc 3 changes the inclination angle while lifting or lowering, when the limiting bolt 7 slides to the end of the arc-shaped slot, the bidirectional self-resetting damping rod 5 offsets the rotating drive of the brush disc 3 by the driving oil cylinder 9 through the damping deformation of the bidirectional self-resetting damping rod 5, so that the brush disc 3 stops rotating and the inclination angle no longer changes, but the brush disc 3 will continue to lift or lower under the action of the driving oil cylinder 9, and the ground clearance is changed.

[0035] In order to protect the stroke of the brush disc 3 and prevent the stroke of the driving oil cylinder 9 from exceeding the limited stroke of the brush disc 3 and damaging the mechanical structure, a vertical second limiting screw 10 is arranged between the connecting rod mechanism and the rotating frame 2.

[0036] In order to protect the safety of the brush disc 3 and the whole brush body and buffer the motion direction when the brush disc 3 or the brush body encounters an obstacle, the utility model sets up the obstacle avoidance spring 14 between the frame 1 and the rotating frame 2, so that the brush rotates a certain angle around the frame 1 when colliding with the obstacle, and the brush is reset under the action of the obstacle avoidance spring 14 after passing through the obstacle. In order to avoid the unlimited rotation of the brush, the horizontal first limiting screw 13 is arranged between the rotating frame 2 and the frame 1.

[0037] The utility model connects the brush disc 3 through the quadrilateral connecting rod mechanism, the driving oil cylinder 9 is installed in the side surface of the quadrilateral connecting rod mechanism and the first vertical plane, the adapter rod 6 and the bidirectional self-resetting damping rod 5 are installed in the two side surfaces of the brush disc connecting plate 17 and the second vertical plane respectively, do not occupy the space in the vertical direction, so will not occupy the lifting space of the brush disc and the ground clearance.

[0038] The above description of disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lift and turn linkage for a sweeper, comprising: The driving oil cylinder (9) is rotatably connected with the frame (1) at its base, and the execution end of the driving oil cylinder (9) is rotatably connected with a support (12) in a first vertical plane, the support (12) is rotatably connected with a brush disc (3) in a second vertical plane, the first vertical plane and the second vertical plane are arranged perpendicularly to each other, and a bidirectional self-resetting damping rod (5) working vertically is arranged between the brush disc (3) and the support (12) to provide rotary driving force for the brush disc (3).

2. A lift and turn linkage for a brush according to claim 1, wherein, A limiting mechanism for limiting the rotary angle of the brush disc (3) is arranged on the support (12).

3. A lift and turn linkage for a brush according to claim 2, wherein, The limiting mechanism comprises an arc-shaped slot arranged on the support (12) in the second vertical plane, and a limiting bolt (7) is slidably connected in the arc-shaped slot, and the end of the limiting bolt (7) is connected with the brush disc (3).

4. The lift and turn linkage for a brush according to claim 1, wherein, The upper end of the brush disc (3) is connected with the upper end of the bidirectional self-resetting damping rod (5).

5. The lift and turn linkage for a brush according to claim 1, wherein, A connecting rod mechanism is hingedly connected between the frame (1) and the support (12).

6. A lift and turn linkage for a brush according to claim 5, wherein, The frame (1) is hingedly connected with a rotary frame (2) in a horizontal plane, and the connecting rod mechanism and the base of the driving oil cylinder (9) are both hingedly connected with the rotary frame (2) in the first vertical plane.

7. A lift and turn linkage for a brush according to claim 6 wherein, An obstacle avoidance spring (14) working horizontally is arranged between the rotary frame (2) and the frame (1).

8. A lift and turn linkage for a brush according to claim 6, wherein, A first limiting screw (13) limiting the rotary angle of the rotary frame (2) is arranged between the rotary frame (2) and the frame (1).

9. The lift and turn linkage for a brush according to claim 6, wherein, A second limiting screw (10) limiting the lifting height of the connecting rod mechanism is arranged between the rotary frame (2) and the connecting rod mechanism.

10. A vehicle for use in refuse collection, characterised in that The sanitation vehicle has the lifting and rotary linkage device of the brush as claimed in any one of claims 1 to 9.

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