A sweeping brush and roller brush integrated lifting mechanism for a sweeping machine

Abstract

The present invention discloses an integrated lifting mechanism for sweeping brushes and roller brushes of a sweeping machine, and belongs to the technical field of sweeping machines. The present invention includes an active rotary drive mechanism for driving a roller brush main body box to rotate around a fulcrum so as to lift and lower the roller brush, and a driven rotary drive mechanism for driving the sweeping brush to lift and lower the roller brush, which is connected to a sweeping brush arm through a pull line; the driven rotary drive mechanism is connected to the active rotary drive mechanism through a connecting mechanism. The present invention only requires one driving mechanism to achieve simultaneous lifting and lowering of the sweeping brush and the roller brush; compared with the existing sweeping machine, one set of lifting power mechanism is reduced, cost is saved, the structure of the sweeping machine is simplified, and the structure of the sweeping machine is more stable; the roller brush main body box can be rotated, and when encountering a roadblock, the roller brush main body box can be rotated, so that the lowest point of the roller brush main body box is lifted, so that the roadblock area can be easily passed, solving the problem that the existing roller brush main body box and the soft baffle of the sweeping machine are severely worn and even affect the forward movement of the sweeping machine.

Description

Technical Field

[0001] The present invention relates to the technical field of sweeping machines, and in particular to an integrated lifting mechanism for a sweeping brush and a roller brush of a sweeping machine. Background Art

[0002] Sweepers are commonly used cleaning machines, suitable for cleaning hard surfaces such as tiles, mirror stones, PVC, epoxy, corundum, polished cement, cement, marble, vitrified tiles, plastic floors, small square bricks, terrazzo, etc. They are ideal tools for cleaning large warehouses, stores, workshops, exhibition halls, venues, squares, waiting halls, open-air squares, pedestrian streets, etc. Sweepers have high working efficiency and can clean up garbage, stones, dust, etc. in a timely manner. Sweepers are increasingly widely used.

[0003] The existing sweeping machine includes a sweeping brush assembly, a sweeping brush lifting mechanism, a roller brush assembly and a roller brush lifting mechanism. The sweeping brush assembly and the sweeping brush lifting mechanism are arranged on the sweeping brush chassis frame, and the sweeping brush lifting mechanism drives the sweeping brush to rise and fall. The roller brush assembly and the roller brush lifting mechanism are arranged on the roller brush main body box; the roller brush lifting mechanism drives the roller brush to rise and fall. The existing sweeping brush lifting mechanism and roller brush lifting mechanism are generally electric push rods, that is, each sweeping machine needs two electric push rods and needs to control electrical components.

[0004] In addition, in the existing sweeping machines, the roller brush main box is fixed on the vehicle body, and the soft baffle at the bottom of the roller brush main box and the steel main box often contact the ground and wear seriously on rough roads or roads with large slopes. In some cases, the sweeping machine cannot move forward due to the roller brush main box contacting the ground. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art and solve the problem that the sweeping brush and roller brush of the existing sweeper each require an independent lifting mechanism and the roller brush main body box and the soft baffle are severely worn and even affect the forward movement of the sweeper, the present invention provides an integrated lifting mechanism for the sweeping brush and roller brush of the sweeper.

[0006] The technical solution of the present invention is:

[0007] A sweeping brush roller integrated lifting mechanism for a sweeping machine includes an active rotary drive mechanism for driving a roller brush body box to rotate around a fulcrum to lift the roller brush, and a driven rotary drive mechanism connected to a sweeping brush arm via a pull wire to drive the sweeping brush to lift; the driven rotary drive mechanism is connected to the active rotary drive mechanism via a connecting mechanism.

[0008] As a preferred embodiment, the active rotation drive mechanism includes a power mechanism and a fulcrum mechanism capable of rotating the roller brush main box at a fulcrum; the power mechanism is a hydraulic cylinder, one end of which is arranged on the chassis frame of the sweeper, and the piston shaft of the hydraulic cylinder is hinged to the roller brush main box.

[0009] As a preferred embodiment, the driven rotary drive mechanism includes a sweeping brush lifting rotating shaft rotatably arranged on the sweeping machine chassis frame / sweeping brush chassis frame, and the sweeping brush lifting rotating shaft is fixedly provided with an upstream rotating arm connected to the connecting mechanism, a downstream rotating arm 1 connected to the first sweeping brush through a pull wire, and a downstream rotating arm 2 connected to the second sweeping brush through a pull wire.

[0010] As a preferred solution, the connecting mechanism is a connecting arm hinged to the sweeping brush body box.

[0011] Furthermore, one end of the connecting arm is connected to the connecting ear through a pin shaft, the connecting ear is fixed to the connecting ear seat, and the connecting ear seat is fixed to the roller brush main body box.

[0012] As a preferred solution, a plurality of wire pulling seats for the wires to pass through are provided on the sweeping brush chassis frame.

[0013] As a preferred solution, the pull wire is a soft shaft pull wire.

[0014] As a preferred solution, the sweeping brush arm is connected to the sweeping brush chassis frame via a cross bearing.

[0015] As a preferred solution, a sweep brush tension spring is arranged between the sweep brush arm and the sweep brush chassis frame.

[0016] As a preferred solution, the end of the pull wire is movably connected to the sweeping arm.

[0017] A sweeping brush roller integrated lifting mechanism for a sweeping machine includes an active rotary drive mechanism for driving a roller brush body box to rotate around a fulcrum to lift the roller brush, and a driven rotary drive mechanism connected to a sweeping brush arm via a pull wire to drive the sweeping brush to lift; the driven rotary drive mechanism is connected to the active rotary drive mechanism via a connecting mechanism.

[0018] In the integrated lifting mechanism of the sweeping brush and roller brush of the sweeping machine of the present invention, the roller brush main body box rotates around the axial fulcrum under the drive of the active rotary drive mechanism, and the rotation of the roller brush main body box around the fulcrum directly causes the roller brush to rise or fall; in addition, when the roller brush main body box rotates, it drives the rotation of the driven rotary drive mechanism through the connecting mechanism, and the rotation of the driven rotary drive mechanism is transmitted through the pull wire, so that the sweeping brush rises or falls. That is, the present invention realizes the simultaneous rise or fall of the sweeping brush and the roller brush in the sweeping machine through the action of a power mechanism.

[0019] The beneficial effects of the present invention are:

[0020] 1. The lifting structure of the present invention only requires one driving mechanism to achieve simultaneous lifting of the sweeping brush and the roller brush; compared with the existing sweeping machine, one set of lifting power mechanism is reduced, which saves costs, simplifies the structure of the sweeping machine and makes the structure of the sweeping machine more stable;

[0021] 2. A hydraulic cylinder is used to drive the lifting of the roller brush and two sweeping brushes at the same time, and no electric push rod is required, thus omitting the electric control part of the existing sweeping machine lifting mechanism.

[0022] 3. In the present invention, the sweeping brush arm and the sweeping brush chassis frame are connected by a cross bearing. The cross bearing serves as a steering device of the sweeping brush arm and is flexible in rotation. Moreover, the cross bearing is a standard part, which is easy to purchase, use and maintain.

[0023] 4. The roller brush main box can be rotated. When encountering a roadblock, the roller brush main box can be rotated to lift the lowest point of the roller brush main box, so that the machine can easily pass through the roadblock area, solving the problem that the existing roller brush main box and soft baffle of the sweeper are seriously worn and even affect the movement of the sweeper.

[0024] 5. The present invention has a simple structure and ingenious arrangement and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the sweeping brush and roller brush integrated lifting mechanism of the sweeping machine of the present invention being arranged on the sweeping machine;

[0027] Figure 2 for Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0028] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of B;

[0029] Figure 4 It is a schematic diagram of the connection relationship between the sweeping brush arm and the cross bearing;

[0030] Figure 5 This is a schematic diagram of the front structural view of the sweeping brush and roller brush integrated lifting mechanism of the sweeping machine of the present invention being arranged on the sweeping machine.

[0031] 1-Roller brush main box; 2-Roller brush; 3-Flexible shaft cable 1; 4-Sweep brush arm; 5-Sweep brush; 6-Flexible shaft cable 2; 7-Sweep brush lifting rotating shaft; 8-Upstream rotating arm; 9-Connecting arm; 10-Pin shaft; 11-Connecting arm ear seat; 12-Ear seat bottom plate; 13-Downstream rotating arm 1; 14-Sweep brush chassis frame; 15-Flexible shaft cable seat; 16-Bearing with seat; 17-Downstream rotating arm 2; 18-Sweep brush tension spring fixing seat; 19-Sweep brush tension spring; 20-Sweep brush arm articulated seat; 21-Flexible shaft cable end articulated seat; 22-Cross bearing; 23-Rotary connecting shaft; 24-Sweeper chassis frame; 25-Hydraulic cylinder ear seat 1; 26-Hydraulic cylinder; 27-Hydraulic cylinder ear seat 2; 28-Dust box. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the sweeping brush and roller brush integrated lifting mechanism of the sweeping machine of this embodiment, as a part of the sweeping machine, is used to drive the sweeping brush 5 and the roller brush 2 to rise and fall simultaneously.

[0036] In the existing sweeping machine, the sweeping brush and the roller brush are raised and lowered independently, and the sweeping brush is raised and lowered by an electric push rod; the roller brush is arranged on the roller brush main body box, and the roller brush main body box is arranged obliquely and fixed on the sweeping machine, that is, the roller brush main body box in the existing sweeping machine is fixed. The roller brush is arranged on the roller brush main body box and is raised and lowered by the electric push rod, that is, the roller brush can be raised and lowered relative to the roller brush main body box.

[0037] Compared with the prior art, the present invention has made significant changes to the structure of the roller brush lifting. The roller brush 2 of the present invention is arranged on the roller brush main body box 1 through a rotating shaft and a bearing (the connection method between the roller brush 2 and the roller brush main body box 1 is not limited in this application, as long as the roller brush 2 can rotate and realize the function of the sweeper). Moreover, in the present invention, the roller brush main body box 1 is not fixed on the sweeper, but can rotate around a fulcrum.

[0038] In this embodiment, the roller brush main body box 1 is welded to the dust box 28 of the sweeper. The dust box 28 is arranged on a support frame on the chassis frame 24 of the sweeper. A connecting plate 1 is arranged at the end of the supporting frame. A connecting plate 2 is arranged on the roller brush main body box. The connecting plate 1 and the connecting plate 2 are connected by a rotating connecting shaft 23. In this way, the integrated device of the roller brush main body box 1 and the dust box 28 can rotate around the rotating connecting shaft 23 as a fulcrum. A hydraulic cylinder 26 is fixed obliquely on the chassis frame 24 of the sweeper. One end of the hydraulic cylinder 26 is connected to the hydraulic cylinder ear seat 1 25 through a pin shaft; the piston rod of the hydraulic cylinder 26 is connected to the hydraulic cylinder ear seat 2 27 through a pin shaft; the hydraulic cylinder ear seat 1 25 is fixed on the chassis frame 24 of the sweeper, and the hydraulic cylinder ear seat 2 27 is fixed on the roller brush main body box 1. When the piston rod of the hydraulic cylinder 26 is extended, the roller brush main body box 1 can rotate clockwise around the fulcrum to realize the lifting of the roller brush.

[0039] An ear seat bottom plate 12 is fixed near the front end of the sweeping brush main body box 1, and a connecting arm ear seat 11 is fixed on the ear seat bottom plate 12. The connecting arm 9 is connected to the connecting arm ear seat 11 through a pin shaft 10. The other end of the connecting arm 9 is connected to the upstream rotating arm 8 through a pin shaft, and the other end of the upstream rotating arm 8 is fixed to the sweeping brush lifting rotating shaft 7. The sweeping brush lifting rotating shaft 7 is fixed between two seat bearings 16, and the seat bearings 16 are fixed to the sweeping brush chassis frame 14 through bolts. The sweeping brush lifting rotating shaft 7 is also fixed with a downstream rotating arm 13 and a downstream rotating arm 2 17.

[0040] The downstream rotating arm 13 is connected to the sweeping brush arm 4 on the left side through the flexible shaft cable 13; the downstream rotating arm 2 17 is connected to the sweeping brush arm 4 on the right side through the flexible shaft cable 26. In order to prevent the flexible shaft cable from being loose, a plurality of cable seats 15 are provided on the sweeping brush chassis frame 14; the flexible shaft cable 13 and the flexible shaft cable 26 are laid through a plurality of cable seats 15 respectively. In order to reduce the risk of the flexible shaft cable being torn off, the flexible shaft cable 13 and the flexible shaft cable 26 are both movably connected to the sweeping brush arm 4. In this embodiment, the flexible shaft cable 13 is hinged to the sweeping brush arm 4 on the right side through the flexible shaft cable end hinge seat 21 fixed to the sweeping brush arm 4 on the right side; similarly, the end of the flexible shaft cable 26 is hinged to the sweeping brush arm 4 on the left side.

[0041] In the integrated lifting mechanism of the sweeping brush and roller brush of the sweeping machine of the present invention, when the piston rod of the hydraulic cylinder 26 is extended, the roller brush main body box 1 as a whole rotates clockwise with the rotating connecting shaft 23 as the fulcrum, that is, the front half of the roller brush main body box 1 rises upward around the fulcrum, realizing the lifting of the roller brush 2. At the same time, during the lifting process of the roller brush main body box 1, the connecting arm 9 is subjected to an oblique upward force, and the connecting arm 9 presses down the upstream rotating arm 8, and the upstream rotating arm 8 drives the sweeping brush lifting rotating shaft 7 to rotate counterclockwise, and the downstream rotating arm 1 13 and the downstream rotating arm 2 17 respectively drive the rotating shaft cable 1 3 and the flexible shaft cable 2 6 to pull backward, and the sweeping brush arm 4 is subjected to an oblique upward pulling force, and then it is lifted with the sweeping brush 5. When the piston rod retracts, the action is reversed, and the sweeping brush 5 and the roller brush 2 are lowered at the same time, that is, the lifting and lowering of the sweeping brush and the roller brush are realized at the same time by a hydraulic cylinder.

[0042] In this embodiment:

[0043] The active rotary drive mechanism is composed of a hydraulic cylinder 26, a rotary connecting shaft 23, and a joint structure connected to the sweeper (hydraulic cylinder ear seat 1 25, hydraulic cylinder ear seat 2 27, dust box 28, connecting plate 1, connecting plate 2). Among them, the hydraulic cylinder ear seat 1 25, hydraulic cylinder ear seat 2 27, and hydraulic cylinder 26 are the power mechanism in the active rotary drive mechanism; the rotary connecting shaft 23, connecting plate 1, connecting plate 2, dust box 28, and the welding connection between the dust box 28 and the roller brush main body box 1 constitute the fulcrum mechanism for the rotation of the roller brush main body box 1.

[0044] The driven rotation driving mechanism is composed of a pin shaft 10, an upstream rotating arm 8, a sweeping brush lifting rotating shaft 7, a seat bearing 16, a downstream rotating arm 13, and a downstream rotating arm 2 17.

[0045] The connecting mechanism is composed of an ear seat bottom plate 12 , a connecting arm ear seat 11 , a connecting arm 9 , and a pin 10 .

[0046] Example 2

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, based on Example 1:

[0048] In order to buffer the lifting and lowering of the sweeping brush 5, a sweeping brush tension spring 19 is arranged between the sweeping brush arm 4 and the sweeping brush chassis frame 14; one end of the sweeping brush tension spring 19 is fixed to the hinged seat 21 at the end of the flexible shaft pull wire, and the other end is fixed to the sweeping brush tension spring fixing seat 18; the sweeping brush tension spring fixing seat 18 is fixed to the sweeping brush chassis frame 14.

[0049] In order to make the sweeping arm 4 flexible in lifting and rotating, the sweeping arm 4 is connected to the sweeping chassis frame 14 through a cross bearing 22. Specifically, the sweeping arm 4 is fixed to the cross bearing 22, the cross bearing 22 is fixed to the cross bearing seat, and the cross bearing seat is fixed to the sweeping chassis frame 14.

[0050] In the integrated lifting mechanism of the sweeping brush and roller brush of the sweeping machine of the present invention, when the piston rod of the hydraulic cylinder 26 is extended, the roller brush main body box 1 as a whole rotates clockwise with the rotating connecting shaft 23 as the fulcrum, that is, the front half of the roller brush main body box 1 rises upward around the fulcrum, realizing the lifting of the roller brush 2. At the same time, during the lifting process of the roller brush main body box 1, the connecting arm 9 is subjected to an oblique upward force, and the connecting arm 9 presses down the upstream rotating arm 8, and the upstream rotating arm 8 drives the sweeping brush lifting rotating shaft 7 to rotate counterclockwise, and the downstream rotating arm 13 and the downstream rotating arm 2 17 respectively drive the rotating shaft cable 1 3 and the flexible shaft cable 2 6 to pull backward, and the sweeping brush arm 4 is subjected to an oblique upward pulling force, and the sweeping brush 5 is lifted; due to the provision of a cross bearing 22 and a sweeping brush tension spring 19, the sweeping brush arm 4 rotates flexibly and buffers the lifting. When the piston rod retracts, the action is reversed, and the sweeping brush 5 and the roller brush 2 are lowered at the same time, that is, the lifting and lowering of the sweeping brush and the roller brush are realized at the same time by a hydraulic cylinder.

Claims

1. A sweeping brush and roller brush integrated lifting mechanism for a sweeping machine, Features: It includes an active rotary drive mechanism for driving the roller brush body box to rotate around a fulcrum so as to lift the roller brush, and a driven rotary drive mechanism connected to the sweeping brush arm through a pull line for driving the sweeping brush to lift; The driven rotation driving mechanism is connected to the active rotation driving mechanism via a connecting mechanism; The driven rotary drive mechanism comprises a sweeping brush lifting rotary shaft rotatably arranged on the sweeping machine chassis frame / sweeping brush chassis frame, and the sweeping brush lifting rotary shaft is fixedly provided with an upstream rotary arm connected to the connecting mechanism, a downstream rotary arm 1 connected to the first sweeping brush via a pull wire, and a downstream rotary arm 2 connected to the second sweeping brush via a pull wire; The connecting mechanism is a connecting arm hinged to the sweeping brush body box; One end of the connecting arm is connected to the connecting ear through a pin shaft, the connecting ear is fixed to the connecting ear seat, and the connecting ear seat is fixed to the roller brush main body box; A plurality of wire pull seats for wires to pass through are provided on the sweeping brush chassis frame; The sweeping brush arm is connected to the sweeping brush chassis frame through a cross bearing.

2. The integrated lifting mechanism for sweeping brush and roller brush of a sweeping machine as claimed in claim 1, Features: The active rotation drive mechanism includes a power mechanism and a fulcrum mechanism capable of rotating the roller brush body box at a fulcrum; the power mechanism is a hydraulic cylinder, one end of which is arranged on the chassis frame of the sweeper, and the piston shaft of the hydraulic cylinder is hinged to the roller brush body box.

3. The integrated lifting mechanism for sweeping brush and roller brush of a sweeping machine as claimed in claim 1, Features: The pull wire is a flexible shaft pull wire.

4. The integrated lifting mechanism for sweeping brush and roller brush of a sweeping machine as claimed in claim 1, Features: A sweep brush tension spring is arranged between the sweep brush arm and the sweep brush chassis frame.

5. The integrated lifting mechanism for sweeping brush and roller brush of a sweeping machine as claimed in claim 1 or 2, Features: The end of the pull wire is movably connected to the sweeping arm.

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