Driving mechanism for unfolding, folding and lifting sweeping disc and motor sweeper thereof

Abstract

The utility model provides a driving mechanism for unfolding, folding and lifting a sweeping disc and a motor sweeper thereof, which comprises a driving component, a driving component, a driving component, a driving component and a driving component, and the driving component is provided with a rotatable driving shaft; the driving shaft is used for driving the connecting assembly to rotate, and a floating part is arranged at the end, away from the driving shaft, of the connecting assembly; the sweeping disc assembly is mounted on the floating part; one end of the tensioning assembly is a fixed end, and the other end of the tensioning assembly is mounted on the floating part; and a gap is formed between the fixed end of the tensioning assembly and the axis of the driving shaft. According to the scheme, unfolding, folding and lifting of the sweeping disc assembly can be achieved through one execution piece, use of the execution pieces is effectively reduced, on one hand, the size of the driving mechanism can be reduced, and on the other hand, the cost of the driving mechanism is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of road sweeping equipment, and in particular to a drive mechanism for extending and lowering sweeping discs and a sweeping vehicle thereof. Background Technology

[0002] Currently, most commercially available sweeping disc structures with extendable and retractable mechanisms use two actuators to control both the extension / retraction and the lifting / lowering of the sweeping disc. One actuator controls the extension / retraction of the sweeping disc, allowing it to swing at a certain angle on the horizontal plane. The other actuator controls the vertical lifting / lowering of the sweeping disc. Existing technologies suffer from numerous control components and complex control mechanisms, resulting in high operating costs.

[0003] The technical problem this application aims to solve is: how to reduce the cost of the sweep drive mechanism. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a drive mechanism for extending, retracting and raising the sweeping disc and its sweeping vehicle. The extension, retraction and raising of the sweeping disc assembly can be realized by a single actuator, which effectively reduces the use of actuators. On the one hand, it can reduce the size of the drive mechanism, and on the other hand, it can reduce the cost of the drive mechanism.

[0005] Specifically, this utility model proposes a drive mechanism for deploying, retracting, and raising / lowering the sweeping disc, comprising:

[0006] A drive assembly having a rotatable drive shaft;

[0007] A connecting assembly, wherein the drive shaft is used to drive the connecting assembly to rotate, and the end of the connecting assembly away from the drive shaft has a floating part;

[0008] A sweeping assembly, which is mounted on the floating part;

[0009] A tensioning assembly, one end of which is a fixed end, and the other end of which is mounted on the floating part;

[0010] The fixed end of the tensioning assembly is spaced apart from the axis of the drive shaft.

[0011] Preferably, the drive assembly includes: a fixed base, a drive member, and a rotating base, wherein the drive member is mounted on the fixed base, and the drive member has a drive shaft for driving the rotating base to move.

[0012] Preferably, the fixed end of the tensioning assembly is disposed on the fixed base.

[0013] Preferably, the tensioning assembly includes a pull rope and a tensioning member, one end of the pull rope is mounted on the fixed base, and the other end of the pull rope is mounted on the floating part through the tensioning member.

[0014] Preferably, the tensioning element includes:

[0015] A cylindrical shell, wherein a receiving cavity is provided in the cylindrical shell, and a through hole communicating with the receiving cavity is provided at one end of the cylindrical shell, the through hole being used to thread the pull rope through;

[0016] A sliding assembly is mounted in the receiving cavity by a tension spring, and the sliding assembly is used to fix the pull rope.

[0017] Preferably, the sliding assembly includes: a sliding block, a lead screw, and a locking nut; the sliding block has a clearance hole for the lead screw to pass through; one end of the lead screw is fixedly connected to the pull rope, and the other end of the lead screw is fitted with a locking nut; the tension spring is sleeved on the lead screw; and the sliding block is located between the tension spring and the locking nut.

[0018] Preferably, the rotating seat is mounted on the fixed seat by a torsion spring.

[0019] Preferably, the connecting assembly has a fixing part, which is disposed on the rotating seat.

[0020] Preferably, the connecting assembly further includes two connecting rods, one end of each connecting rod being hinged to the fixed part, and the other end of each connecting rod being hinged to the floating part.

[0021] In addition, this application also proposes a sweeper vehicle that includes the aforementioned drive mechanism for spreading and raising the sweeping disc. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0023] Figure 1 This is a three-dimensional structural diagram of the drive mechanism for spreading, retracting, and lifting the sweeping disc proposed in this embodiment;

[0024] Figure 2 This is a three-dimensional structural diagram of the fixing base in this embodiment;

[0025] Figure 3 This is a schematic diagram showing the connection relationship between the rotating seat and the connecting assembly in this embodiment;

[0026] Figure 4 This is a schematic diagram of the tensioning component in this embodiment;

[0027] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0028] Figure 6 This is a schematic diagram of the position structure of the drive arm in this embodiment.

[0029] The reference numerals used in the attached figures are as follows:

[0030] 11-Drive assembly; 12-Drive shaft; 13-Connecting assembly; 14-Floating part; 15-Sweeping disc assembly; 16-Tensioning assembly; 17-Fixed end; 18-Fixed seat; 19-Drive component; 20-Rotating seat; 21-Pull rope; 22-Tensioning component; 23-Cylinder shell; 24-Receiving cavity; 25-Sliding assembly; 26-Tension spring; 27-Sliding block; 28-Lead screw; 29-Locking nut; 30-Torsion spring; 31-Connecting rod; 32-Fixed part; 33-Drive motor; 34-Motor base; 35-Sweeping disc part; 36-Drive arm; 37-Adjusting block. Detailed Implementation

[0031] The technical solutions of this application will be further described below with reference to specific embodiments, but this application is not limited to these embodiments.

[0032] like Figures 1 to 6 As shown, this embodiment proposes a drive mechanism for deploying, retracting, and raising / lowering the sweeping disc, comprising:

[0033] Drive assembly 11, drive assembly 11 having a rotatable drive shaft 12;

[0034] The connecting assembly 13 has a drive shaft 12 for driving the connecting assembly 13 to rotate, and the end of the connecting assembly 13 away from the drive shaft 12 has a floating part 14.

[0035] The sweeping assembly 15 is mounted on the floating part 14.

[0036] The tensioning assembly 16 has a fixed end 17 at one end and the other end of the tensioning assembly 16 is mounted on the floating part 14.

[0037] There is a gap between the fixed end 17 of the tensioning assembly 16 and the axis of the drive shaft 12.

[0038] The advantage of this solution is that the expansion, retraction, lifting and lowering of the sweeping assembly 15 can be achieved through a single actuator, which effectively reduces the number of actuators used. On the one hand, this reduces the size of the drive mechanism, and on the other hand, it lowers the cost of the equipment.

[0039] The specific working principle is as follows:

[0040] Since the fixed end 17 of the tensioning assembly 16 is not aligned with the axis of the drive shaft 12, when the drive assembly 11 drives the sweeping assembly 15 to unfold, the tensioning assembly 16 loosens, and the floating part 14 descends, thereby driving the sweeping assembly 15 to descend. When the sweeping assembly 15 is fully unfolded, the sweeping assembly 15 makes full contact with the ground.

[0041] Conversely, when the drive assembly 11 retracts the sweeping assembly 15, the tensioning assembly 16 is tensioned by the floating part 14. Since the floating part 14 can move up and down, it moves upward a certain distance under the force of the tensioning assembly 16. At this time, the sweeping assembly 15 detaches from the ground.

[0042] As one embodiment of this example, the drive assembly 11 includes: a fixed base 18, a drive member 19, and a rotating base 20. The drive member 19 is mounted on the fixed base 18, and the drive member 19 has a drive shaft 12 for driving the rotating base 20 to move.

[0043] In this solution, the drive component 19 adopts a rotary actuator, which can be a combination of a motor and a reducer, or a rotary cylinder.

[0044] The fixed base 18 has an upper support arm and a lower support arm; the rotating base 20 has an upper mounting arm and a lower mounting arm.

[0045] The housing of the drive component 19 is installed between the upper support arm and the lower support arm, and the upper mounting arm and the lower mounting arm are rotatably sleeved on the housing of the drive component 19.

[0046] In one embodiment of this invention, the rotating seat 20 is mounted on the fixed seat 18 via a torsion spring 30. The torsion spring 30 is sleeved on the housing of the driving member 19, with one end of the torsion spring 30 fixed to the fixed seat 18 and the other end of the torsion spring 30 fixed to the rotating seat 20.

[0047] A drive arm 36 is fixed to the lower end of the drive shaft 12. The drive arm 36 is used to push the rotating seat 20 to rotate in the forward direction, and the torsion spring 30 is used to drive the rotating seat 20 to rotate in the reverse direction. When the drive arm 36 drives the rotating seat 20 to rotate in the forward direction, the torsion spring 30 is compressed and accumulates elastic potential energy. When the drive arm 36 rotates in the reverse direction, the torsion spring 30 releases elastic potential energy and drives the rotating seat 20 to rotate in the reverse direction.

[0048] The description of the drive component 11 in this document is not intended to limit the specific structure of the drive component 11. Any technical solution that can drive the connecting component 13 to rotate is within the protection scope of the drive component 11 in this application. The drive component 11 in this solution can also use other solutions in the prior art to drive the rotation of the connecting component 13.

[0049] In addition, the rotating seat 20 in this solution can also be connected to the drive shaft 12 in other ways, such as the rotating seat 20 being fixedly connected to the drive shaft 12, which can also realize the rotation of the rotating seat 20.

[0050] As one embodiment of this invention, the fixed end 17 of the tensioning assembly 16 is fixed on the fixed base 18.

[0051] As one embodiment of this example, the tensioning assembly 16 includes a pull rope 21 and a tensioning member 22. One end of the pull rope 21 has a fixed end 17, which is fixed on the fixed base 18. The other end of the pull rope 21 is hinged to the floating part 14 through the tensioning member 22.

[0052] Furthermore, the tensioning element 22 includes:

[0053] The cylindrical shell 23 has a receiving cavity 24 inside, and one end of the cylindrical shell 23 has a through hole that communicates with the receiving cavity 24. The through hole is used to thread the pull rope 21 through.

[0054] The sliding assembly 25 is installed in the receiving cavity 24 via a tension spring 26, and the sliding assembly 25 is used to fix the pull rope 21.

[0055] Furthermore, the sliding assembly 25 includes: a sliding block 27, a lead screw 28, and a locking nut 29. The sliding block 27 is provided with a clearance hole for the lead screw 28 to pass through. One end of the lead screw 28 is fixedly connected to the pull rope 21, and the other end of the lead screw 28 is equipped with the locking nut 29. The tension spring 26 is sleeved on the lead screw 28. The sliding block 27 is located between the tension spring 26 and the locking nut 29.

[0056] Furthermore, the rotating base 20 is provided with an adjusting block 37 for threading the pull rope 21. This is used to optimize the angle and trajectory of the pull rope 21.

[0057] In this design, once the sweeping assembly 15 is fully deployed, it moves up and down with the undulations of the ground. The pull rope 21 and tensioning member 22 remain taut to prevent the pull rope from lifting and affecting the operation of the sweeping assembly 15.

[0058] As one embodiment of this invention, the connecting component 13 has a fixing part 32, which is disposed on the rotating seat 20.

[0059] Furthermore, the connecting assembly 13 also includes two connecting rods 31, one end of which is hinged to the fixed part 32, and the other end of which is hinged to the floating part 14.

[0060] In this solution, the connecting component 13 is a parallelogram linkage 31 mechanism. The advantage of this mechanism is that it can ensure that the floating part 14 is always parallel to the fixed part 32. Since the fixed part 32 is in a vertical state, the floating part 14 is also always in a vertical state, which makes the lifting and lowering of the sweeping assembly 15 more stable.

[0061] The sweeping assembly 15 is existing technology. The sweeping assembly 15 includes a drive motor 33, a motor base 34, and a sweeping part 35. The drive motor 33 is fixed to the floating part 14 via the motor base 34, and the sweeping part 35 is mounted on the output shaft of the drive motor 33.

[0062] In addition, this application also proposes a sweeper vehicle that includes the aforementioned drive mechanism for spreading and raising the sweeping disc.

[0063] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A drive mechanism for deploying, retrieving, and lifting a sweeping disc, characterized in that, include: A drive assembly (11) having a rotatable drive shaft (12); A connecting component (13) is provided, wherein the drive shaft (12) is used to drive the connecting component (13) to rotate, and the end of the connecting component (13) away from the drive shaft (12) has a floating part (14); A sweeping assembly (15) is mounted on the floating part (14); A tensioning assembly (16), one end of which is a fixed end (17), and the other end of which is mounted on the floating part (14); The fixed end (17) of the tensioning assembly (16) is provided with a gap between the axis of the drive shaft (12).

2. The drive mechanism for deploying, retracting, and lifting the sweeping disc according to claim 1, characterized in that, The drive assembly (11) includes: a fixed base (18), a drive member (19), and a rotating base (20). The drive member (19) is mounted on the fixed base (18), and the drive member (19) has a drive shaft (12) for driving the rotating base (20) to move.

3. The drive mechanism for deploying, retracting, and lifting the sweeping disc according to claim 2, characterized in that, The fixed end (17) of the tensioning assembly (16) is disposed on the fixed base (18).

4. The drive mechanism for deploying, retracting, and lifting the sweeping disc according to claim 3, characterized in that, The tensioning assembly (16) includes a pull rope (21) and a tensioning member (22). One end of the pull rope (21) is mounted on the fixed base (18), and the other end of the pull rope (21) is mounted on the floating part (14) via the tensioning member (22).

5. The drive mechanism for deploying, retracting, and lifting the sweeping disc according to claim 4, characterized in that, The tensioning element (22) includes: A cylindrical shell (23) is provided with a receiving cavity (24) in the cylindrical shell (23), and a through hole is provided at one end of the cylindrical shell (23) to communicate with the receiving cavity (24). The through hole is used to pass through the pull rope (21). A sliding assembly (25) is installed in the receiving cavity (24) by a tension spring (26), and the sliding assembly (25) is used to fix the pull rope (21).

6. The drive mechanism for deploying and lifting the sweeping disc according to claim 5, characterized in that, The sliding assembly (25) includes: a sliding block (27), a lead screw (28), and a locking nut (29). The sliding block (27) has a clearance hole for the lead screw (28) to pass through. One end of the lead screw (28) is fixedly connected to the pull rope (21), and the other end of the lead screw (28) is fitted with a locking nut (29). The tension spring (26) is sleeved on the lead screw (28). The sliding block (27) is located between the tension spring (26) and the locking nut (29).

7. The drive mechanism for deploying, retracting, and lifting the sweeping disc according to claim 2, characterized in that, The rotating seat (20) is mounted on the fixed seat (18) by a torsion spring (30).

8. The drive mechanism for deploying, retracting, and lifting the sweeping disc according to claim 2, characterized in that, The connecting assembly (13) has a fixing part (32) which is disposed on the rotating seat (20).

9. The drive mechanism for deploying and lifting the sweeping disc according to claim 8, characterized in that, The connecting assembly (13) further includes two connecting rods (31), one end of each connecting rod (31) is hinged to the fixed part (32), and the other end of each connecting rod (31) is hinged to the floating part (14).

10. A sweeper vehicle, characterized in that, Includes a drive mechanism for spreading and raising / lowering the sweeping disc as described in any one of claims 1 to 9.

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