Guardrail cleaning machine

Abstract

The utility model relates to a guardrail cleaning machine which comprises an installation frame, a transverse moving mechanism, a multi-shaft mechanical arm and a cleaning mechanism used for cleaning a guardrail, the transverse moving mechanism is arranged on the installation frame and drives the multi-shaft mechanical arm to horizontally and linearly move, and the multi-shaft mechanical arm drives the cleaning mechanism to move. When the transverse moving mechanism is loaded at the head position of the cleaning vehicle, the driving direction of the transverse moving mechanism is the left-right direction, the distance of the cleaning mechanism extending out of the side edge of the cleaning vehicle can be adjusted only by controlling the transverse moving mechanism, operation is easy and convenient, and operators can easily master the transverse moving mechanism without special training. The traveling speed of the cleaning vehicle during cleaning is usually low, an operator can completely control the transverse moving mechanism to act during traveling, and when the cleaning vehicle encounters an obstacle during guardrail cleaning, the cleaning vehicle does not need to be stopped within a certain obstacle avoidance distance (namely the width distance of the cleaning vehicle deviating from the original traveling path during obstacle avoidance), so that the cleaning vehicle is convenient to operate. And the cleaning efficiency of the guardrail can be improved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical field especially relates to a guardrail cleaning machine. BACKGROUND

[0002] Isolation guardrails are usually arranged on both sides of urban roads, and some roads in the middle are also designed with isolation guardrails for maintaining the traffic order and safety of vehicles and pedestrians. Due to dust and other factors, dust and stains will accumulate on the guardrails, accelerating the rusting of the guardrails and also damaging the city image. Therefore, the guardrails need to be regularly maintained and cleaned. At present, guardrail cleaning mainly includes manual cleaning and mechanical cleaning. Manual cleaning is time-consuming and labor-intensive, while mechanical cleaning has the advantages of high cleaning efficiency, good cleaning effect and high operation safety, and has gradually replaced manual cleaning.

[0003] Mechanical cleaning mainly uses a guardrail cleaning vehicle to clean the guardrails. The guardrail cleaning machine is a special cleaning equipment designed for cleaning the isolation guardrails of urban roads, and is usually loaded on the front position of the cleaning vehicle. The guardrail cleaning machine generally includes a rotating brush and a multi-axis mechanical arm. One end of the multi-axis mechanical arm is hinged to the front of the vehicle, and the other end is connected to the rotating brush. The multi-axis mechanical arm is usually driven by multiple hydraulic cylinders. Due to factors such as green belts and obstacles, the distance between the guardrail and the cleaning vehicle may change. The multi-axis mechanical arm is basically manually controlled. When the distance between the guardrail and the cleaning vehicle changes, the extension distance of the multi-axis mechanical arm needs to be adjusted, and then the extension distance of the rotating brush needs to be adjusted. Due to the characteristics of the multi-axis mechanical arm, multiple hydraulic cylinders need to be controlled to work together to complete the adjustment. The operation and control are relatively troublesome, especially when walking. Although there are some guardrail cleaning machines on the market that can automatically adjust the multi-axis mechanical arm, the equipment cost is high. Moreover, because the working environment is relatively harsh, the sensors on the equipment are easily damaged, and the maintenance cost is also high. In addition, the cultural level of the workers is generally low, and they basically do not have the ability to repair themselves. They also need to be equipped with special equipment maintenance personnel, which is not conducive to controlling the municipal cost. SUMMARY

[0004] The utility model aims at providing a kind of guardrail cleaning machine, it can simply and conveniently adjust the distance that rotating brush extends cleaning vehicle, it is beneficial to operation personnel control, guarantee guardrail cleaning efficiency.

[0005] To achieve the above object, the utility model discloses a kind of guardrail cleaning machine, it includes: mounting bracket, horizontal moving mechanism, multi-axis mechanical arm and for cleaning guardrail cleaning mechanism, the horizontal moving mechanism is set on mounting bracket, the horizontal moving mechanism drives multi-axis mechanical arm horizontal straight line movement, the multi-axis mechanical arm drives cleaning mechanism to move.

[0006] Through the above arrangement, when the guardrail cleaning machine is loaded at the position of the cleaning vehicle head, the driving direction of the transverse moving mechanism is left-right direction, at this time, only the transverse moving mechanism needs to be controlled, the distance of the cleaning mechanism extending out of the side of the cleaning vehicle can be adjusted, the operation is simple and convenient, and the operator can easily master without special training. The traveling speed of the cleaning vehicle during cleaning is usually slow, and the operator can completely control the transverse moving mechanism during traveling, and when the cleaning vehicle cleaning the guardrail encounters an obstacle, within a certain obstacle avoidance distance (i.e. the width distance of the cleaning vehicle deviating from the original driving path when avoiding obstacles), the cleaning vehicle does not need to stop, and the cleaning efficiency of the guardrail can be improved to a certain extent.

[0007] Preferably, the transverse moving mechanism comprises a rack, a gear, a transverse moving driving member, a sliding seat and at least one sliding rod, the rack and the sliding rod are parallel to each other, and the rack and the sliding rod are connected to the mounting frame; the sliding seat is slidingly connected to the sliding rod; the seat body of the transverse moving driving member is mounted on the sliding seat, the transverse moving driving member drives the gear to rotate, and the gear is engaged with the rack; the transverse moving driving member is a hydraulic motor or a motor; and the multi-axis mechanical arm is connected to the sliding seat. The transverse moving mechanism with such an arrangement has a simple structure and a large transverse moving threshold.

[0008] Preferably, the horizontal rotating mechanism is further arranged, the transverse moving mechanism drives the horizontal rotating mechanism to move, the horizontal rotating mechanism drives the multi-axis mechanical arm to move, and the multi-axis mechanical arm is provided with a first load-bearing arm connected with the horizontal rotating mechanism. Through the arrangement of the horizontal rotating mechanism, the guardrail cleaning machine can be more conveniently stored (i.e. so that the guardrail cleaning machine does not extend out of the side of the cleaning vehicle), and in addition, the cleaning angle of the cleaning mechanism can be adjusted.

[0009] Preferably, the horizontal rotating mechanism comprises a mounting seat, a horizontal rotating driving member, a worm, a worm gear and a rotating seat, the mounting seat is connected with the transverse moving mechanism; the worm and the worm gear are both rotationally connected in the mounting seat, and the worm is engaged with the worm gear, the horizontal rotating driving member drives the worm to rotate; the rotating seat is limitingly matched with the mounting seat, and the rotating seat is connected with the worm gear, the rotating seat and the worm gear rotate synchronously; the first load-bearing arm is connected with the rotating seat, and the first load-bearing arm and the rotating seat rotate synchronously. The horizontal rotating mechanism with such an arrangement has a simple and reliable structure, is beneficial to stress, and ensures the service life.

[0010] Preferably, the end of the first load-bearing arm is provided with a cap which is sleeved on the rotating seat; the two sides of the cap are provided with first limiting plates; the rotating seat is provided with second limiting plates which are parallel to the first limiting plates and buffer assemblies which correspond to the first limiting plates one by one; the buffer assembly comprises a buffer screw, a locking nut, at least one first elastic member and at least one second elastic member, the threaded end of the buffer screw is sequentially threaded through the second limiting plate, the first elastic member, the first limiting plate, the second elastic member and then is threadedly connected with the locking nut; the first elastic member is compressed between the first limiting plate and the second limiting plate, and the second elastic member is compressed between the first limiting plate and the locking nut. By arranging the buffer assembly, when the guardrail is cleaned, the shaking caused by the collision between the cleaning mechanism and the guardrail can be well slowed down when transmitted to the horizontal rotating mechanism through the multi-axis robot arm, the influence of the shaking on the horizontal rotating mechanism is reduced, and the shaking is also slowed down when transmitted to the horizontal moving mechanism and the cleaning vehicle.

[0011] Preferably, the multi-axis robot arm further comprises a first slope adjusting assembly, a second slope adjusting assembly and a second load-bearing arm, one end of the second load-bearing arm is rotatably connected to the end of the first load-bearing arm away from the horizontal rotating mechanism, the first slope adjusting assembly is connected to the first load-bearing arm and the second load-bearing arm, and the first slope adjusting assembly drives the second load-bearing arm to rotate relative to the first load-bearing arm; the other end of the second load-bearing arm is provided with an extension arm; the cleaning mechanism comprises a first rotating brush assembly and a second rotating brush assembly, the first rotating brush assembly is connected to the extension arm; the second slope adjusting assembly is installed at one end of the second load-bearing arm where the extension arm is arranged, and the second slope adjusting assembly drives the second rotating brush assembly to rotate; the first rotating brush assembly and the second rotating brush assembly cooperate to clean the guardrail. After such an arrangement, the adjustment flexibility of the guardrail cleaning machine can be improved. In addition, the second slope adjusting assembly only drives the second rotating brush assembly to rotate, and the load is small, by rotating the second rotating brush assembly to the horizontal or above the horizontal, the second rotating brush assembly can well pass over the guardrail, compared with the existing way of lifting the cleaning assembly as a whole through the multi-axis robot arm, the multi-axis robot arm can be more miniaturized. After the second rotating brush assembly is reset, the guardrail can be placed between the first rotating brush assembly and the second rotating brush assembly for double-sided cleaning, and the cleaning effect is better.

[0012] Preferably, the first slope adjusting assembly comprises a first adjusting rod, a second adjusting rod, an adjusting seat, a limiting plate and a limiting screw, one end of the first adjusting rod is rotationally connected with the first load-bearing arm, the other end of the first adjusting rod is provided with a first threaded section, one end of the second adjusting rod is rotationally connected with the second load-bearing arm away from the one end of the extension arm, the other end of the second adjusting rod is provided with a second threaded section, the adjusting seat is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are coaxially arranged, the first threaded section is threadedly connected with the first threaded hole, the second threaded section is threadedly connected with the second threaded hole, the adjusting seat is rotated, the first threaded section and the second threaded section are close to or away from each other, the limiting plate is connected on the first load-bearing arm, the limiting screw is threadedly connected with the adjusting seat through the limiting plate, and the adjusting seat is circumferentially provided with a plurality of third threaded holes matched with the limiting screw. The slope adjustment of the second load-bearing arm is not commonly used, therefore, the first slope adjusting assembly is designed in a manual adjusting mode, so as to reduce the cost of the equipment, in addition, only the limiting screw is unscrewed, and then the adjusting seat is rotated, so that the slope of the second load-bearing arm can be conveniently adjusted, the operation is convenient, and the structure is simple.

[0013] Preferably, the second slope adjusting assembly comprises a first telescopic driving member, a swing arm and a rotating shaft, the rotating shaft is rotationally connected with the extension arm, one end of the rotating shaft extends out of the extension arm, the second rotating brush assembly is arranged at the one end of the rotating shaft extending out of the extension arm, the second rotating brush assembly is slidably connected with the rotating shaft, and the second rotating brush assembly rotates synchronously with the rotating shaft, the one end of the rotating shaft extending out of the extension arm is further provided with a stepped surface and a spacing adjusting assembly, the spacing adjusting assembly comprises an adjusting nut and a plurality of adjusting washers, the adjusting washers are sequentially sleeved on the rotating shaft, the adjusting washers are arranged between the stepped surface and the second rotating brush assembly, and the adjusting nut is threadedly connected with the rotating shaft, the stepped surface, the adjusting washers and the adjusting nut limit the second rotating brush assembly; the other end of the rotating shaft is connected with one end of the swing arm, and the swing arm rotates synchronously with the rotating shaft; the first telescopic driving member comprises a first fixed part and a first movable part, the first fixed part is rotationally connected with the second load-bearing arm, and the first movable part is rotationally connected with the other end of the swing arm; the second load-bearing arm is provided with a stopper limiting matched with the swing arm, and when the first rotating brush assembly and the second rotating brush assembly are aligned with each other, the swing arm abuts against the stopper. The second slope adjusting assembly is simple in structure and good in reliability. In addition, by arranging the stopper, the influence of shaking of the guardrail cleaning operation on the first telescopic driving member can be reduced, and the service life of the first telescopic driving member is prolonged. By arranging the spacing adjusting assembly, when the cleaning mechanism is worn, the spacing between the first rotating brush assembly and the second rotating brush assembly can be shortened by removing part of the adjusting washers, so that the use effect of the cleaning mechanism is ensured.

[0014] Preferably, a second telescopic driving member is further included, the second telescopic driving member comprising a second fixed part and a second movable part; the second load-bearing arm comprises a first load-bearing tube and a second load-bearing tube, the second load-bearing tube being sleeved outside the first load-bearing tube and being in sliding connection with the first load-bearing tube; the second fixed part is connected with the first load-bearing tube, and the second movable part is connected with the second load-bearing tube; the first load-bearing tube is in rotary connection with the first load-bearing arm, and the second slope adjusting assembly and the extension arm are arranged on the second load-bearing arm. Through the above arrangement, the length of the second load-bearing arm can be controlled and adjusted, which is beneficial to coping with guardrails of different heights. In addition, through cooperation of the first load-bearing tube and the second load-bearing tube, the stress of the second telescopic driving member can be only in the telescopic direction, so that the service life of the second telescopic driving member is guaranteed.

[0015] Preferably, the first rotating brush assembly and the second rotating brush assembly each comprise a mounting table, a mounting rod, a plurality of cleaning assemblies, a rotating brush driving member and a shield, the mounting table corresponding to the first rotating brush assembly is connected with the extension arm, and the mounting table corresponding to the second rotating brush assembly is connected with the second slope adjusting assembly; the mounting rod is in rotary connection with the mounting table, and the rotating brush driving member drives the mounting rod to rotate; the shield is connected with the mounting table, and the shield semi-surrounds the mounting rod; the cleaning assemblies are arranged in sequence along the length direction of the mounting rod, the cleaning assembly comprises a plurality of first flexible members, a plurality of second flexible members and a mounting ring for fixing the first flexible members and the second flexible members, the mounting ring is sleeved on the mounting rod, and the mounting ring rotates synchronously with the mounting rod, the first flexible members are circumferentially distributed on the mounting ring, and at least one second flexible member is arranged between two adjacent first flexible members; the first flexible member is formed by combination of a plurality of filament-shaped flexible bodies, and the second flexible member is formed by layering of a plurality of strip-shaped flexible bodies. After the above arrangement, the first rotating brush assembly and the second rotating brush assembly are independent of each other, and the cleaning demand can be basically met even if any one set fails. The modular arrangement of the cleaning assembly can only replace the damaged cleaning assembly during maintenance, thereby reducing the maintenance cost, and the two kinds of flexible members arranged on the cleaning assembly can achieve better cleaning effect. In addition, the arrangement of the shield can avoid dust and stains generated during cleaning from being thrown to passing pedestrians, and is more friendly.

[0016] The utility model has the following beneficial effects:

[0017] The utility model discloses a cleaning vehicle, which is characterized by the following technical scheme: a horizontal moving mechanism is arranged on the cleaning vehicle; a horizontal rotating mechanism is arranged on the horizontal moving mechanism; a multi-axis mechanical arm is arranged on the horizontal rotating mechanism; a first bearing arm is arranged on the multi-axis mechanical arm; a first slope adjusting assembly is arranged on the first bearing arm; a first rotating brush assembly is arranged on the first slope adjusting assembly; a second bearing arm is arranged on the multi-axis mechanical arm; a second slope adjusting assembly is arranged on the second bearing arm; a second rotating brush assembly is arranged on the second slope adjusting assembly; a cleaning assembly is arranged on the second rotating brush assembly; and a hidden mounting seat is arranged on the cleaning assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of the utility model.

[0019] Figure 2 It is the schematic diagram of another view of the utility model.

[0020] Figure 3 It is the schematic diagram of the horizontal moving mechanism.

[0021] Figure 4 It is the connection schematic diagram of the horizontal rotating mechanism.

[0022] Figure 5 It is Figure 4 It is the schematic diagram after the hidden mounting seat.

[0023] Figure 6 It is the schematic diagram of the multi-axis mechanical arm.

[0024] Figure 7 It is the schematic diagram of the first bearing arm.

[0025] Figure 8 It is the connection schematic diagram of the first slope adjusting assembly.

[0026] Figure 9 It is the sectional view of the multi-axis mechanical arm at the second bearing arm.

[0027] Figure 10 It is the schematic diagram of the second rotating brush assembly.

[0028] Figure 11 It is the schematic diagram of the cleaning assembly.

[0029] Figure 12 It is the reference diagram of the use state of the utility model.

[0030] Main component symbol explanation:

[0031] Mounting frame 10;

[0032] Horizontal moving mechanism 20, rack 21, gear 22, horizontal moving drive 23, sliding seat 24, sliding rod 25;

[0033] Horizontal rotating mechanism 30, mounting seat 31, horizontal rotating driving part 32, worm 33, worm wheel 34, rotating seat 35, second limiting plate 36, buffer screw 371, locking nut 372, first elastic member 373, second elastic member 374;

[0034] Multi-axis mechanical arm 40, first load-bearing arm 41, sleeve cap 411, first limiting plate 412, extension arm 421, first load-bearing tube 422, second load-bearing tube 423, stop block 424, first inclination adjusting assembly 43, first adjusting rod 431, second adjusting rod 432, adjusting seat 433, limiting plate 434, limiting screw 435, first threaded section 436, second threaded section 437, third threaded hole 438, second telescopic driving part 44, second fixed part 441, second movable part 442, first telescopic driving part 451, swing arm 452, rotating shaft 453, first fixed part 454, first movable part 455, adjusting gasket 456;

[0035] Cleaning mechanism 50, first rotating brush assembly 51, second rotating brush assembly 52, mounting table 53, mounting rod 54, rotating brush driving part 55, shroud 56, cleaning assembly 57, mounting ring 571, first flexible member 572, second flexible member 573;

[0036] Cleaning vehicle 60. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed with the utility model combined with the drawings and examples.

[0038] As Figures 1-12 The utility model discloses a guardrail cleaning machine, it includes mounting bracket 10, horizontal moving mechanism 20, horizontal rotating mechanism 30, multi-axis mechanical arm 40 and cleaning mechanism 50, and mounting bracket 10 is used to connect cleaning vehicle 60, so that guardrail cleaning machine can be loaded on cleaning vehicle 60. Horizontal moving mechanism 20 sets up on mounting bracket 10, and horizontal moving mechanism 20 drives horizontal rotating mechanism 30 horizontal linear movement, and the moving direction is the car side of cleaning vehicle 60 perpendicular. Horizontal rotating mechanism 30 drives multi-axis mechanical arm 40 to rotate on the plane, and multi-axis mechanical arm 40 then drives cleaning mechanism 50 to move, and cleaning mechanism 50 is used for cleaning guardrail.

[0039] The horizontal moving mechanism 20 comprises a rack 21, a gear 22, a horizontal moving driving member 23, a sliding base 24 and two slide rods 25, the rack 21 and the slide rods 25 are parallel to each other, and the rack 21 and the slide rods 25 are fixedly connected to the mounting rack 10. The sliding base 24 is slidingly connected to the slide rods 25. The seat body of the horizontal moving driving member 23 is mounted on the sliding base 24, the horizontal moving driving member 23 drives the gear 22 to rotate, the gear 22 is engaged with the rack 21, and the horizontal moving driving member 23 can be a hydraulic motor or a motor, which is specifically determined according to the power source that can be provided by the cleaning vehicle 60, for example, if the cleaning vehicle 60 can provide hydraulic power, the horizontal moving driving member 23 is selected to be a hydraulic motor, and if the cleaning vehicle 60 is an electric vehicle, the horizontal moving driving member 23 can be a motor. Each driving member described below is selected to be similar to the horizontal moving driving member 23, and details are not described herein. The horizontal moving mechanism 20 is simple in structure and has a large horizontal moving threshold value.

[0040] The horizontal rotating mechanism 30 comprises a mounting seat 31, a horizontal rotating driving member 32, a worm 33, a worm wheel 34 and a rotating seat 35, the mounting seat 31 is locked to the sliding base 24 of the horizontal moving mechanism 20, the worm 33 and the worm wheel 34 are both rotatably connected to the mounting seat 31, and the worm 33 is engaged with the worm wheel 34, the seat body of the horizontal rotating driving member 32 is locked to the mounting seat 31, the horizontal rotating driving member 32 drives the worm 33 to rotate, and the horizontal rotating driving member 32 can be selected to be a hydraulic motor or a motor. The rotating seat 35 is limitingly matched with the mounting seat 31, that is, the rotating seat 35 can only rotate relative to the mounting seat 31, and the rotating seat 35 cannot move relative to the mounting seat 31. The rotating seat 35 is connected to the worm wheel 34, for example, by screwing, and the rotating seat 35 rotates synchronously with the worm wheel 34. The multi-axis mechanical arm 40 is connected to the rotating seat 35, and the two synchronously rotate. The horizontal rotating mechanism 30 is simple in structure, reliable, beneficial to stress and capable of guaranteeing service life.

[0041] The multi-axis mechanical arm 40 comprises a first inclination adjusting assembly 43, a second inclination adjusting assembly, a first load-bearing arm 41 and a second load-bearing arm. The first load-bearing arm 41 is horizontally placed, and a sleeve cap 411 is arranged at one end of the first load-bearing arm 41. The sleeve cap 411 is sleeved on the rotating seat 35 to facilitate positioning and installation. First limiting plates 434412 are arranged on both sides of the sleeve cap 411. Second limiting plates 43436 parallel to the first limiting plates 434412 and buffer assemblies corresponding to the first limiting plates 434412 are arranged on the rotating seat 35. The buffer assembly comprises a buffer screw 371, a locking nut 372, at least one first elastic member 373 and at least one second elastic member 374. The first elastic member 373 and the second elastic member 374 are disc springs. The threaded end of the buffer screw 371 is sequentially threaded connected to the locking nut 372 through the second limiting plate 43436, the first elastic member 373, the first limiting plate 434412 and the second elastic member 374. Holes adapted to the buffer screw 371 are arranged on the first limiting plate 434412 and the second limiting plate 43436. The first elastic member 373 is compressed between the first limiting plate 434412 and the second limiting plate 43436, and the second elastic member 374 is compressed between the first limiting plate 434412 and the locking nut 372. By arranging the buffer assembly, when the cleaning mechanism 50 collides with the guardrail to generate shaking, the shaking can be better slowed down when transmitted to the horizontal rotating mechanism 30 through the multi-axis mechanical arm 40, the influence of the shaking on the horizontal rotating mechanism 30 is reduced, and the shaking is also slowed down when transmitted to the horizontal moving mechanism 20 and the cleaning vehicle 60.

[0042] One end of the second load-bearing arm (second load-bearing tube 423) is rotatably connected to one end of the first load-bearing arm 41 away from the horizontal rotating mechanism 30, and the end of the second load-bearing arm not connected to the first load-bearing arm 41 (first load-bearing tube 422) is provided with an extension arm 421. The first inclination adjustment assembly 43 is connected to the first load-bearing arm 41 and the second load-bearing arm, and manually drives the second load-bearing arm to rotate relative to the first load-bearing arm 41. Specifically, the first inclination adjustment assembly 43 includes a first adjustment rod 431, a second adjustment rod 432, an adjustment seat 433, a limiting plate 434, and a limiting screw 435. One end of the first adjustment rod 431 is rotatably connected to the first load-bearing arm 41, and the other end of the first adjustment rod 431 is provided with a first threaded section 436. One end of the second adjustment rod 432 is rotatably connected to the end of the second load-bearing arm away from the extension arm 421 (second load-bearing tube 423), and the connection node of the second adjustment rod 432 to the second load-bearing arm is located on the side of the connection node of the second load-bearing arm to the first load-bearing arm 41 away from the extension arm 421. The other end of the second adjustment rod 432 is provided with a second threaded section 437. The adjustment seat 433 is provided with a first threaded hole and a second threaded hole coaxially arranged, i.e., on a straight line. The first threaded section 436 is threadedly connected to the first threaded hole, and the second threaded section 437 is threadedly connected to the second threaded hole. When the adjustment seat 433 is rotated, the first threaded section 436 and the second threaded section 437 approach or move away from each other, so that the second load-bearing arm can rotate relative to the first load-bearing arm 41. Normally, the second load-bearing arm is in a vertical state.

[0043] In the present case, the second load-bearing arm is adjustable in length, specifically, the second load-bearing arm comprises a first load-bearing tube 422 and a second load-bearing tube 423, the second load-bearing tube 423 is sleeved outside the first load-bearing tube 422, the inner wall of the second load-bearing tube 423 is in close contact with the outer wall of the first load-bearing tube 422, and the second load-bearing tube 423 is in sliding connection with the first load-bearing tube 422. In the above, the second adjusting rod 432 is connected with the second load-bearing tube 423, and the extension arm 421 is arranged on the first load-bearing tube 422. A second telescopic driving member 44 (such as a hydraulic cylinder) is arranged in the inner cavity of the first load-bearing tube 422, the second telescopic driving member 44 comprises a second fixed part 441 (the seat body of the hydraulic cylinder) and a second movable part 442 (the push rod of the hydraulic cylinder), the second fixed part 441 is connected with the first load-bearing tube 422, and the second movable part 442 is connected with the second load-bearing tube 423. Through the cooperation of the first load-bearing tube 422 and the second load-bearing tube 423, the stress of the second telescopic driving member 44 is only in the telescopic direction, thereby ensuring the service life. By controlling the extension length of the second movable part 442, the length of the second load-bearing arm is adjusted, so as to facilitate the response to guardrails of different heights.

[0044] The second slope adjusting assembly is installed at one end of the extension arm 421 of the second load-bearing arm, and comprises a first telescopic driving member 451, an oscillating arm 452 and a rotating shaft 453. The rotating shaft 453 is in rotary connection with the extension arm 421, one end of the rotating shaft 453 extends out of the extension arm 421, the other end of the rotating shaft 453 is connected with one end of the oscillating arm 452, and the oscillating arm 452 rotates synchronously with the rotating shaft 453. The first telescopic driving member 451 (such as a hydraulic cylinder) comprises a first fixed part 454 (the seat body of the hydraulic cylinder) and a first movable part 455 (the push rod of the hydraulic cylinder), the first fixed part 454 is in rotary connection with the second load-bearing arm, and the first movable part 455 is in rotary connection with the other end of the oscillating arm 452. When the first movable part 455 moves relative to the first fixed part 454 (i.e. when the push rod of the hydraulic cylinder is extended or retracted), the rotating shaft 453 rotates. The second slope adjusting assembly thus arranged has simple structure and good reliability.

[0045] The cleaning mechanism 50 comprises a first rotating brush assembly 51 and a second rotating brush assembly 52, which cooperate to clean the guardrail. The first rotating brush assembly 51 is connected to the extension arm 421 by bolts, and the second rotating brush assembly 52 is connected to the shaft 453, which extends from one end of the extension arm 421 (hereinafter referred to as the overhanging end of the shaft 453), and the second rotating brush assembly 52 rotates synchronously with the shaft 453. In this case, the distance between the second rotating brush assembly 52 and the first rotating brush assembly 51 is adjustable. Specifically, the second rotating brush assembly 52 is slidingly connected to the overhanging end of the shaft 453, and a stepped surface and a distance adjusting assembly are further provided on the overhanging end of the shaft 453. The distance adjusting assembly comprises an adjusting nut and a plurality of adjusting washers 456, which are sequentially sleeved on the shaft 453, and the adjusting washers 453 are arranged between the stepped surface and the second rotating brush assembly 52. The adjusting nut is threadedly connected to the end of the overhanging end of the shaft 453, and by tightening the adjusting nut, the second rotating brush assembly 52 can be fastened. After the cleaning mechanism 50 is used for a long time or is worn out (referring to the wear of the cleaning assembly 57), the distance between the first rotating brush assembly 51 and the second rotating brush assembly 52 can be adjusted by removing the adjusting washers 456, so that the cleaning mechanism 50 can continue to reliably wash the guardrail.

[0046] A stop block 424 is provided on the first load-bearing pipe 422 and cooperates with the swing arm 452. When the first rotating brush assembly 51 and the second rotating brush assembly 52 are aligned with each other (when the cleaning mechanism 50 is in operation, the first rotating brush assembly 51 and the second rotating brush assembly 52 are aligned with each other), the swing arm 452 abuts against the stop block 424. The provision of the stop block 424 can reduce the influence of the shaking of the guardrail cleaning operation on the first telescopic driving member 451, thereby prolonging the service life of the first telescopic driving member 451. In addition, the second slope adjusting assembly only drives the second rotating brush assembly 52 to rotate, and the load is small. By rotating the second rotating brush assembly 52 to a horizontal position or above the horizontal position, the second rotating brush assembly 52 can easily pass over the guardrail. Compared with the existing method of lifting the cleaning assembly 57 as a whole by the multi-axis mechanical arm 40, the multi-axis mechanical arm 40 can be more miniaturized. After the second rotating brush assembly 52 is reset, the guardrail can be placed between the first rotating brush assembly 51 and the second rotating brush assembly 52 for double-sided cleaning, and the cleaning effect is better.

[0047] In the case, the first brush assembly 51 and the second brush assembly 52 each include a mounting table 53, a mounting rod 54, a plurality of cleaning assemblies 57, a brush driving member 55 (a hydraulic motor or a motor) and a protective cover 56, the mounting table 53 corresponding to the first brush assembly 51 is bolted to the extension arm 421, and the mounting table 53 corresponding to the second brush assembly 52 is bolted to the rotating shaft 453. The mounting rod 54 is rotationally connected to the mounting table 53, and the brush driving member 55 drives the mounting rod 54 to rotate. The protective cover 56 is connected to the mounting table 53, and the protective cover 56 semi-surrounds the mounting rod 54, and there is a certain gap between the two to provide a space for the cleaning assembly 57 to be installed. The cleaning assembly 57 is sequentially stacked along the length direction of the mounting rod 54, and the cleaning assembly 57 includes a plurality of first flexible members 572, a plurality of second flexible members 573 and a mounting ring 571 for fixing the first flexible members 572 and the second flexible members 573, the mounting ring 571 is sleeved on the mounting rod 54, and the mounting ring 571 rotates synchronously with the mounting rod 54. The first flexible members 572 are circumferentially distributed on the mounting ring 571, and at least one second flexible member 573 is arranged between every two adjacent first flexible members 572. The first flexible member 572 is composed of a plurality of filament-shaped flexible bodies (such as rubber filaments), and the first flexible member 572 is similar to a rubber brush. The second flexible member 573 is formed by laminating a plurality of strip-shaped flexible bodies (such as rubber strips), and the second flexible member 573 is similar to a cloth piece mop. After such arrangement, the first brush assembly 51 and the second brush assembly 52 are independent of each other, and the cleaning requirement can be basically met even if any one set fails. The modularized arrangement of the cleaning assembly 57 can only replace the damaged cleaning assembly 57 during maintenance, thereby reducing the maintenance cost, and the two types of flexible members arranged on the cleaning assembly 57 can achieve better cleaning effect. In addition, the arrangement of the protective cover 56 can avoid dust and stains from being splashed to passing pedestrians during cleaning, and is more friendly.

[0048] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application.

Claims

1. A guardrail cleaning machine characterized by, The utility model relates to a guardrail cleaning device, including: The mounting frame, horizontal moving mechanism, multi-axis mechanical arm and the cleaning mechanism for cleaning guardrail, the horizontal moving mechanism is arranged on the mounting frame, the horizontal moving mechanism drives the horizontal linear movement of multi-axis mechanical arm, the multi-axis mechanical arm drives the movement of cleaning mechanism, The horizontal moving mechanism includes rack, gear, horizontal moving drive piece, sliding seat and at least one slide rod, the rack and slide rod are parallel to each other, and the rack and slide rod are connected with the mounting frame;The sliding seat is slidingly connected with the slide rod;The seat body of horizontal moving drive piece is installed on the sliding seat, and the horizontal moving drive piece drives the rotation of gear, and the gear is engaged with the rack;The horizontal moving drive piece is hydraulic motor or motor;The multi-axis mechanical arm is connected with the sliding seat; It also includes horizontal rotation mechanism, the horizontal moving mechanism drives the movement of horizontal rotation mechanism, the horizontal rotation mechanism drives the movement of multi-axis mechanical arm, and the first load-bearing arm is arranged on the multi-axis mechanical arm and connected with the horizontal rotation mechanism; The horizontal rotation mechanism includes mounting seat, horizontal rotation drive piece, worm, worm wheel and rotating seat, and the mounting seat is connected with the horizontal moving mechanism;The worm and worm wheel are both rotationally connected in the mounting seat, and the worm is engaged with the worm wheel, and the horizontal rotation drive piece drives the rotation of worm;The rotating seat is limitingly matched with the mounting seat, and the rotating seat is connected with the worm wheel, and the rotating seat rotates synchronously with the worm wheel;The first load-bearing arm is connected with the rotating seat, and the first load-bearing arm rotates synchronously with the rotating seat.

2. A guard rail cleaning machine according to claim 1, characterised in that: The end of first load-bearing arm is provided with a cap, and the cap is sleeved on the rotating seat;Two sides of the cap are provided with first limit plates;The rotating seat is provided with second limit plates parallel to the first limit plates and buffer assemblies corresponding to the first limit plates;The buffer assembly includes buffer screw, locking nut, at least one first elastic member and at least one second elastic member, the threaded end of buffer screw is sequentially threaded through the second limit plate, the first elastic member, the first limit plate, the second elastic member, and then is threadedly connected with the locking nut; The first elastic member is compressed between the first limit plate and the second limit plate, and the second elastic member is compressed between the first limit plate and the locking nut.

3. A guard rail cleaning machine according to claim 1, characterised in that: The multi-axis mechanical arm further includes first inclination adjusting assembly, second inclination adjusting assembly and second load-bearing arm, one end of the second load-bearing arm is rotationally connected with the end of the first load-bearing arm away from the horizontal rotation mechanism, the first inclination adjusting assembly is connected with the first load-bearing arm and the second load-bearing arm, and the first inclination adjusting assembly drives the rotation of the second load-bearing arm relative to the first load-bearing arm;The other end of the second load-bearing arm is provided with an extension arm;The cleaning mechanism includes first brush rotating assembly and second brush rotating assembly, and the first brush rotating assembly is connected with the extension arm;The second inclination adjusting assembly is installed on the end of the second load-bearing arm provided with the extension arm, and the second inclination adjusting assembly drives the rotation of the second brush rotating assembly;The first brush rotating assembly and the second brush rotating assembly cooperate to clean the guardrail.

4. A guard rail cleaning machine according to claim 3, characterised in that: The first slope adjusting assembly comprises a first adjusting rod, a second adjusting rod, an adjusting seat, a limiting plate and a limiting screw, one end of the first adjusting rod is rotationally connected with the first load-bearing arm, the other end of the first adjusting rod is provided with a first threaded section; one end of the second adjusting rod is rotationally connected with the second load-bearing arm away from the one end of the extension arm, the other end of the second adjusting rod is provided with a second threaded section; the adjusting seat is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are coaxially arranged; the first threaded section is threadedly connected with the first threaded hole, the second threaded section is threadedly connected with the second threaded hole, the adjusting seat is rotated, and the first threaded section and the second threaded section are moved closer to or farther away from each other; the limiting plate is connected on the first load-bearing arm, the limiting screw is threadedly connected with the adjusting seat through the limiting plate, and the adjusting seat is circumferentially provided with a plurality of third threaded holes matched with the limiting screw.

5. A guard rail cleaning machine according to claim 3, characterised in that: The second slope adjusting assembly comprises a first telescopic driving member, a swing arm and a rotating shaft, the rotating shaft is rotationally connected on the extension arm, one end of the rotating shaft extends out of the extension arm, the second rotating brush assembly is arranged on the one end of the rotating shaft extending out of the extension arm, the second rotating brush assembly is slidingly connected with the rotating shaft, and the second rotating brush assembly rotates synchronously with the rotating shaft, the one end of the rotating shaft extending out of the extension arm is further provided with a stepped surface and a spacing adjusting assembly, the spacing adjusting assembly comprises an adjusting nut and a plurality of adjusting washers, the adjusting washers are sequentially sleeved on the rotating shaft, the adjusting washers are arranged between the stepped surface and the second rotating brush assembly, and the adjusting nut is threadedly connected with the rotating shaft; the stepped surface, the adjusting washers and the adjusting nut cooperate to limit the second rotating brush assembly; the other end of the rotating shaft is connected with one end of the swing arm, and the swing arm rotates synchronously with the rotating shaft; the first telescopic driving member comprises a first fixed part and a first movable part, the first fixed part is rotationally connected with the second load-bearing arm, and the first movable part is rotationally connected with the other end of the swing arm; the second load-bearing arm is provided with a stopper limiting matched with the swing arm, and when the first rotating brush assembly and the second rotating brush assembly are aligned with each other, the swing arm abuts against the stopper.

6. A guard rail cleaning machine according to claim 3, characterised in that: The second telescopic driving member comprises a second fixed part and a second movable part; the second load-bearing arm comprises a first load-bearing tube and a second load-bearing tube, the second load-bearing tube is sleeved outside the first load-bearing tube, and the second load-bearing tube is slidingly connected with the first load-bearing tube; the second fixed part is connected with the first load-bearing tube, and the second movable part is connected with the second load-bearing tube; the first load-bearing tube is rotationally connected with the first load-bearing arm, and the second slope adjusting assembly and the extension arm are arranged on the second load-bearing arm.

7. A guard rail cleaning machine according to claim 3, characterised in that: The first rotating brush assembly and the second rotating brush assembly each comprise a mounting table, a mounting rod, a plurality of cleaning assemblies, a rotating brush driving member and a shroud, the mounting table corresponding to the first rotating brush assembly is connected with the extension arm, and the mounting table corresponding to the second rotating brush assembly is connected with the second slope adjusting assembly; the mounting rod is rotationally connected on the mounting table, and the rotating brush driving member drives the mounting rod to rotate; the shroud is connected with the mounting table, and the shroud semi-surrounds the mounting rod; the cleaning assemblies are sequentially arranged along the length direction of the mounting rod, the cleaning assembly comprises a plurality of first flexible members, a plurality of second flexible members and a mounting ring for fixing the first flexible members and the second flexible members, the mounting ring is sleeved on the mounting rod, and the mounting ring rotates synchronously with the mounting rod, the first flexible members are circumferentially distributed on the mounting ring, and at least one second flexible member is arranged between every two adjacent first flexible members; the first flexible member is formed by combining a plurality of filament-shaped flexible bodies, and the second flexible member is formed by laminating a plurality of strip-shaped flexible bodies.

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