A guardrail maintenance device

By designing a guardrail maintenance device with support and guidance mechanisms, the problem of requiring manual driving of motor vehicles to clean guardrails in existing technologies has been solved, realizing automated guardrail cleaning and reducing costs and labor costs.

CN118653401BActive Publication Date: 2026-04-03XIANGYANG ROAD & BRIDGE CONSTR GRP CO LTD +1
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing guardrail maintenance equipment requires manual labor by driving motor vehicles for cleaning, which is costly and has a low degree of automation.

Method used

A guardrail maintenance device was designed, comprising a support mechanism, a guide mechanism, and a cleaning mechanism. It utilizes roller support and guide wheels for guidance, and a drive component to move the frame along the length of the guardrail. Combined with the cleaning mechanism, the guardrail is cleaned automatically.

Benefits of technology

It has enabled automated cleaning of guardrails, reducing labor costs and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118653401B_ABST
    Figure CN118653401B_ABST
Patent Text Reader

Abstract

This invention discloses a guardrail maintenance device, including a support mechanism, a guide mechanism, and a cleaning mechanism. The support mechanism includes a frame and multiple rollers located at the bottom of the frame. The guide mechanism includes two guide wheels rotatably connected to the frame, with each guide wheel abutting against one side of the guardrail. The frame is equipped with a drive assembly for driving the two guide wheels to rotate. The cleaning mechanism is located on the frame and is used to clean the guardrail. The advantages of this invention are: the rollers abutting against the ground provide support, the two guide wheels abutting against one side of the guardrail provide guidance, and under the drive of the drive assembly, the guide wheels rotate, the frame moves along the length of the guardrail, and the cleaning mechanism cleans the guardrail, thus achieving automated cleaning of the guardrail, reducing labor costs, and lowering expenses.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of public facility maintenance, and specifically to a guardrail maintenance device. Background Technology

[0002] Guardrails serve to prevent traffic accidents, but due to exposure to sun and rain, as well as corrosion from various dust and other substances, they are prone to oxidation, which reduces their protective capabilities. In the event of a traffic accident, they are unable to provide the necessary protection and buffering.

[0003] In related technologies, a bridge railing maintenance device is proposed, including a maintenance mechanism installed on the surface of a motor vehicle. The maintenance mechanism includes a storage component installed on the vehicle body, a cleaning component installed inside the storage component, and a water spraying component installed inside the storage component. A drying component is provided on the surface of the storage component.

[0004] The aforementioned technologies have the following drawbacks: a single maintenance system requires a vehicle, resulting in high costs. Furthermore, when maintaining the guardrails, workers need to drive the vehicle along the length of the guardrails to perform the maintenance, leading to low automation and significant labor costs. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a guardrail maintenance device to solve the technical problem that the existing technology requires manual driving to clean the guardrail.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a guardrail maintenance device, including a support mechanism, wherein the support mechanism includes a frame and a plurality of rollers disposed at the bottom of the frame;

[0007] A guiding mechanism, comprising two guide wheels rotatably connected to a frame, the two guide wheels respectively abutting against both sides of the guardrail, and a drive assembly on the frame for driving the two guide wheels to rotate; and,

[0008] A cleaning mechanism is mounted on the frame and is used to clean the guardrail.

[0009] In some embodiments, the frame is provided with a support rod that extends along the width of the guardrail. Two support blocks are slidably connected to the support rod, and two guide wheels are rotatably connected to the two support blocks respectively. The support rod is provided with an adjustment component for adjusting the distance between the two guide wheels.

[0010] In some embodiments, the adjustment assembly includes a double-ended screw rotatably connected to a support rod, the double-ended screw extending along the width of the guardrail, the double-ended screw passing through two support blocks and being threadedly connected to the two support blocks respectively.

[0011] In some embodiments, the double-ended lead screw is provided with an anti-loosening gear, and the support rod is engaged with an anti-loosening tooth block that meshes with the anti-loosening gear.

[0012] In some embodiments, the drive assembly includes a motor mounted on the frame, a rotating shaft on the output shaft of the motor, the rotating shaft extending along the width direction of the guardrail, two driving bevel gears slidably connected on the rotating shaft along the width direction of the guardrail, two driven bevel gears on each of the two guide wheels, and a fixing assembly on the rotating shaft for fixing the two driving bevel gears so that the two driving bevel gears mesh with the two driven bevel gears respectively.

[0013] In some embodiments, the fixing component includes a bolt threaded onto the drive bevel gear, the end of the bolt being used to abut against the shaft.

[0014] In some embodiments, the guide wheel includes a turntable rotatably connected to a support block, the turntable having a plurality of telescopic rods with supporting functions circumferentially arranged on it, and a pressure block being provided at one end of the telescopic rod away from the turntable, the pressure block abutting against the guardrail.

[0015] In some embodiments, the telescopic rod includes a first rod body disposed on a turntable, a second rod body slidably connected to the first rod body along its length, a pressure block disposed on the second rod body at one end away from the first rod body, and springs sleeved on the first rod body and the second rod body, one end of the spring being connected to the first rod body and the other end of the spring being connected to the second rod body, the spring being in a compressed state, the spring causing the second rod body to tend to slide away from the turntable.

[0016] In some embodiments, the cleaning mechanism includes a brush mounted on a turntable, with two brushes respectively abutting against both sides of the guardrail. The brush includes a brush handle mounted on the turntable and brush bristles mounted on the brush handle.

[0017] In some embodiments, the frame is provided with a water tank, the water tank is provided with two water pipes, the outlet of the water tank is connected to the inlet of the water pipes, the water pipes are provided with valves, the brush rod is coaxially rotatably connected with a rotating ring, the two water pipes are respectively connected to the two rotating rings, the outlet of the water pipes, the inlet of the rotating rings, the outlet of the rotating rings and the inlet of the brush rod are connected in sequence, and the brush rod is provided with a water outlet hole.

[0018] Compared with the prior art, the beneficial effects of the present invention include: the rollers abut against the ground to provide support, the two guide wheels abut against the two sides of the guardrail to provide guidance, and the guide wheels rotate under the driving action of the drive component, the frame moves along the length of the guardrail, and the cleaning mechanism cleans the guardrail, thereby realizing automated cleaning of the guardrail, reducing labor costs, and lowering costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the maintenance device provided by the present invention;

[0020] Figure 2 This invention provides Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This invention provides Figure 1 Enlarged view of the structure at point B in the middle;

[0022] Figure 4 This invention provides Figure 1 Enlarged view of the structure at point C.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support mechanism; 11. Frame; 12. Roller; 2. Guide mechanism; 21. Guide wheel; 22. Support rod; 23. Support block; 24. Turntable; 25. Pressure block; 4. Drive assembly; 41. Motor; 42. Rotating shaft; 43. Driving bevel gear; 44. Driven bevel gear; 5. Cleaning mechanism; 51. Brush; 52. Brush body; 53. Brush bristles; 54. Water tank; 55. Water pipe; 56. Valve; 57. Rotary ring; 58. Water outlet; 6. Adjustment assembly; 61. Double-ended lead screw; 62. Anti-loosening gear; 63. Anti-loosening tooth block; 7. Fixing assembly; 71. Bolt; 8. Telescopic rod; 81. First rod body; 82. Second rod body; 83. Spring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] This invention provides a guardrail maintenance device, the structure of which is as follows: Figure 1 - Figure 4 As shown, it includes a support mechanism 1, a guiding mechanism 2, and a cleaning mechanism 5.

[0027] The support mechanism 1 includes a frame 11 and four rollers 12 rotatably connected to the bottom of the frame 11. The four rollers 12 are located on the periphery of the frame 11.

[0028] The guiding mechanism 2 includes two guide wheels 21 rotatably connected to the top of the frame 11. The two guide wheels 21 are located on both sides of the frame 11 and abut against both sides of the guardrail. The frame 11 is provided with a driving assembly 4 for driving the two guide wheels 21 to rotate.

[0029] The cleaning mechanism 5 is mounted on the frame 11 and is used to clean the guardrail.

[0030] When using and maintaining the guardrail, the frame 11 is placed on the guardrail, with four rollers 12 resting on the ground for support. Two guide wheels 21 rest on both sides of the guardrail for guidance. The drive assembly 4 is activated, which drives the two guide wheels 21 to rotate along the guardrail, thereby moving the frame 11 along the length of the guardrail. The cleaning mechanism 5 then cleans the guardrail.

[0031] In this invention, the roller 12 abuts against the ground to provide support, and the two guide wheels 21 abut against the two sides of the guardrail to provide guidance. Under the driving action of the drive component 4, the guide wheels 21 rotate, the frame 11 moves along the length of the guardrail, and the cleaning mechanism 5 cleans the guardrail, realizing automated cleaning of the guardrail, reducing labor costs, and lowering costs.

[0032] To accommodate guardrails of different widths, please refer to [reference needed]. Figure 1 In a preferred embodiment, a support rod 22 is fixedly connected to the frame 11. The support rod 22 extends along the width direction of the guardrail. Two support blocks 23 are slidably connected to the support rod 22 along its length direction. Two guide wheels 21 are rotatably connected to the two support blocks 23 respectively. An adjustment component 6 for adjusting the distance between the two guide wheels 21 is provided on the support rod 22.

[0033] In use, the width of the guardrail varies depending on its specifications. The distance between the two guide wheels 21 is adjusted using the adjusting component 6 to match the guardrail width, making it widely applicable and highly practical. During adjustment, the adjusting component 6 drives the two support blocks 23 to slide along the support rod 22, and the support blocks 23 drive the guide wheels 21 to slide.

[0034] To adjust the distance between the two guide wheels 21, please refer to... Figure 1 In a preferred embodiment, the adjustment assembly 6 includes a double-ended lead screw 61 rotatably connected to the support rod 22. The double-ended lead screw 61 extends along the width direction of the guardrail and passes through two support blocks 23 respectively and is threadedly connected to the two support blocks 23.

[0035] When in use, rotating the double-ended lead screw 61 drives the two support blocks 23 to slide in the opposite direction along the length of the support rod 22. The two support blocks 23 respectively drive the two guide wheels 21 to slide in the opposite direction, thereby realizing the adjustment of the distance between the two guide wheels 21. The adjustment is convenient and the fixation is stable.

[0036] To prevent the double-ended lead screw 61 from loosening during rotation, please refer to... Figure 2In a preferred embodiment, the end of the double-ended lead screw 61 is fixedly connected to an anti-loosening gear 62, and the support rod 22 is provided with a slot, in which an anti-loosening tooth block 63 that meshes with the anti-loosening gear 62 is engaged.

[0037] During use and maintenance, the double-ended lead screw 61 may vibrate to a certain extent under the influence of the drive component 4, which may cause changes in the spacing of the guide wheels 21, affecting the guiding effect and maintenance efficiency. When the double-ended lead screw 61 is rotated, the anti-loosening gear 62 rotates accordingly. After adjusting the two guide wheels 21 to the predetermined position, the anti-loosening tooth block 63 is engaged in the slot. The anti-loosening tooth block 63 and the anti-loosening gear 62 limit the possibility of the double-ended lead screw 61 rotating and loosening, thereby reducing the possibility of the guide wheels 21 sliding and loosening. The guidance is more precise, improving maintenance efficiency.

[0038] To drive the two guide wheels 21 to rotate, please refer to... Figure 3 In a preferred embodiment, the drive assembly 4 includes a motor 41 mounted on one side of the top of the frame 11. A rotating shaft 42 is coaxially fixedly connected to the output shaft of the motor 41. The rotating shaft 42 extends along the width direction of the guardrail. Two driving bevel gears 43 are slidably connected to the rotating shaft 42 along the width direction of the guardrail. A driven bevel gear 44 is fixedly connected to each of the two guide wheels 21. The rotating shaft 42 is provided with a fixing assembly 7 for fixing the two driving bevel gears 43 and making the two driving bevel gears 43 mesh with the two driven bevel gears 44 respectively.

[0039] In use, after adjusting the two guide wheels 21 to the predetermined position, the two driving bevel gears 43 are pushed to slide along the rotating shaft 42, so that the two driving bevel gears 43 mesh with the two driven bevel gears 44 respectively. The two driving bevel gears 43 are then fixed in place using the fixing component 7. The motor 41 is then started, driving the rotating shaft 42 to rotate. The rotating shaft 42 drives the two driving bevel gears 43 to rotate, which in turn drives the two driven bevel gears 44 to rotate. The two driven bevel gears 44 then drive the two guide wheels 21 to rotate. The structure is simple and the transmission is highly efficient.

[0040] To secure the two driving bevel gears 43, please refer to... Figure 3 In a preferred embodiment, the fixing component 7 includes a bolt 71 threaded onto the drive bevel gear 43, the end of the bolt 71 being used to abut against the rotating shaft 42.

[0041] When in use, loosen the bolt 71, and the push rod drive bevel gear 43 slides along the rotating shaft 42. After the drive bevel gear 43 slides to the predetermined position, tighten the bolt 71 until the end of the bolt 71 abuts against the rotating shaft 42, and the drive bevel gear 43 is fixed. Not only is the structure simple, but the bolt 71 also has a self-locking function, which makes the fixation stable.

[0042] To improve the stability of guide wheel 21, please refer to... Figure 4 In a preferred embodiment, the guide wheel 21 includes a turntable 24 rotatably connected to the support block 23. A plurality of telescopic rods 8 with supporting functions are arranged around the circumference of the turntable 24. A pressure block 25 is fixedly connected to one end of the telescopic rod 8 away from the turntable 24. The pressure block 25 abuts against the guardrail.

[0043] When in use, as the turntable 24 rotates, under the adjustment of the telescopic rod 8, multiple pressure blocks 25 on the turntable 24 near the guardrail can simultaneously abut against the guardrail, increasing the contact area with the guardrail along its length, improving the stability of the guide, reducing the possibility of the frame 11 swaying, and improving maintenance efficiency.

[0044] To adjust the extension distance of the pressure block 25, please refer to... Figure 4 In a preferred embodiment, the telescopic rod 8 includes a first rod 81 fixedly connected to the turntable 24, a second rod 82 slidably connected to the first rod 81 along its length, a pressure block 25 fixedly connected to the end of the second rod 82 away from the first rod 81, and springs sleeved on the first rod 81 and the second rod 82, one end of the spring fixedly connected to the first rod 81 and the other end of the spring fixedly connected to the second rod 82, the spring being in a compressed state, the spring causing the second rod 82 to tend to slide away from the turntable 24.

[0045] In use, when the pressure block 25 is not in contact with the guardrail, the spring is at its original length. When the pressure block 25 contacts the guardrail, it slides towards the turntable 24, which in turn drives the second rod 82 to slide along the first rod 81 towards the turntable 24, compressing the spring. As the turntable 24 rotates, when the pressure block 25 separates from the guardrail again, it slides away from the turntable 24, and the spring returns to its original length. This process repeats continuously. The structure is simple, low-cost, and easy to maintain.

[0046] To clean the guardrails, please refer to... Figure 1 In a preferred embodiment, the cleaning mechanism 5 includes a brush 51 fixedly connected to the bottom of the turntable 24. The two brushes 51 respectively abut against the two sides of the guardrail. Each brush 51 includes a brush rod fixedly connected to the bottom of the turntable 24 and brush bristles 53 provided on the brush rod. The brush rod extends along the height direction of the guardrail.

[0047] In use, when the motor 41 drives the turntable 24 to rotate, the turntable 24 drives the brush 51 to rotate, and the brush 51 cleans the guardrail. The turntable 24 and the brush 51 share a single motor 41, which reduces energy consumption and is energy-saving and environmentally friendly.

[0048] To improve cleaning results, please refer to... Figure 1 In a preferred embodiment, a water tank 54 is fixedly connected to the top of the frame 11, and two water pipes 55 are fixedly connected to the water tank 54. The outlet of the water tank 54 is connected to the inlet of the water pipe 55. A valve 56 is installed on the water pipe 55. A rotating ring 57 is coaxially rotatably connected to the brush rod. The two water pipes 55 are respectively connected to the two rotating rings 57. The outlet of the water pipe 55, the inlet of the rotating ring 57, the outlet of the rotating ring 57, and the inlet of the brush rod are connected in sequence. An array of water outlet holes 58 are opened on the brush rod.

[0049] When in use, open valve 56, and the water in water tank 54 passes through water pipe 55, rotating ring 57 and brush rod in sequence, and is discharged from water outlet 58, flowing onto brush bristles 53, which improves the maintenance effect.

[0050] To better understand this invention, the following is combined with... Figure 1 - Figure 4 The working principle of a guardrail maintenance device according to the present invention is described in detail as follows: When maintaining the guardrail, the frame 11 is erected on the guardrail, and four rollers 12 abut against the ground to provide support. Two guide wheels 21 abut against both sides of the guardrail to provide guidance. The drive assembly 4 is activated, which drives the two guide wheels 21 to rotate along the guardrail, thereby moving the frame 11 along the length of the guardrail. The cleaning mechanism 5 cleans the guardrail.

[0051] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A guardrail maintenance device, characterized in that, include: A support mechanism, the support mechanism including a frame and a plurality of rollers disposed at the bottom of the frame; The guide mechanism includes two guide wheels rotatably connected to the frame, the two guide wheels respectively abutting against both sides of the guardrail, and the frame is provided with a drive assembly for driving the two guide wheels to rotate; A cleaning mechanism, which is mounted on the frame, is used to clean the guardrail; The frame is provided with a support rod that extends along the width of the guardrail. Two support blocks are slidably connected to the support rod, and two guide wheels are rotatably connected to the two support blocks respectively. The support rod is provided with an adjustment component for adjusting the distance between the two guide wheels. The guide wheel includes a turntable rotatably connected to the support block. The turntable is provided with a plurality of telescopic rods with supporting functions. A pressure block is provided at the end of the telescopic rod away from the turntable, and the pressure block abuts against the guardrail. The telescopic rod includes a first rod body disposed on a turntable, a second rod body slidably connected to the first rod body along its length, a pressure block disposed on the second rod body at one end away from the first rod body, and springs sleeved on the first rod body and the second rod body, one end of the spring being connected to the first rod body and the other end of the spring being connected to the second rod body, the spring being in a compressed state, the spring causing the second rod body to tend to slide away from the turntable; The cleaning mechanism includes a brush mounted on a turntable, with two brushes respectively abutting against both sides of the guardrail. Each brush includes a brush handle mounted on the turntable and brush bristles mounted on the brush handle.

2. The guardrail maintenance device according to claim 1, characterized in that, The adjustment assembly includes a double-ended screw rotatably connected to the support rod. The double-ended screw extends along the width of the guardrail and passes through two support blocks respectively and is threadedly connected to the two support blocks.

3. The guardrail maintenance device according to claim 2, characterized in that, The double-ended lead screw is equipped with an anti-loosening gear, and the support rod is fitted with an anti-loosening tooth block that meshes with the anti-loosening gear.

4. The guardrail maintenance device according to claim 1, characterized in that, The drive assembly includes a motor mounted on the frame, a rotating shaft on the output shaft of the motor, the rotating shaft extending along the width direction of the guardrail, two driving bevel gears slidably connected on the rotating shaft along the width direction of the guardrail, two driven bevel gears on the two guide wheels, and a fixing assembly on the rotating shaft for fixing the two driving bevel gears so that the two driving bevel gears mesh with the two driven bevel gears respectively.

5. A guardrail maintenance device according to claim 4, characterized in that, The fixing component includes a bolt threaded onto the drive bevel gear, the end of which is used to abut against the rotating shaft.

6. A guardrail maintenance device according to claim 1, characterized in that, The frame is equipped with a water tank, which has two water pipes. The outlet of the water tank is connected to the inlet of the water pipes. The water pipes are equipped with valves. A rotating ring is coaxially rotatably connected to the brush rod. The two water pipes are respectively connected to the two rotating rings. The outlet of the water pipes, the inlet of the rotating rings, the outlet of the rotating rings, and the inlet of the brush rod are connected in sequence. The brush rod is equipped with a water outlet hole.

Citation Information

Patent Citations

  • Road and bridge guardrail cleaning and maintaining device

    CN216074939U

  • Attractive cleaning equipment for road and bridge anti-collision guardrails

    CN218322526U

  • Guardrail cleaning device for highway bridge maintenance

    CN220704404U