A guard rail cleaning device for road maintenance

Abstract

This utility model belongs to the field of guardrail cleaning technology and discloses a guardrail cleaning device for highway maintenance, including: an upper frame and two sets of linkage rods respectively located on both sides below the upper frame. The linkage rods have a V-shaped structure, and the linkage rods on both horizontal sides are arranged in a mirror-symmetrical manner with opposite V-shaped opening directions. One end of the linkage rod is equipped with a rigid roller brush, and the other end is equipped with a flexible roller brush. Compared with the prior art, this utility model has the following advantages: two sets of gears mesh and drive the linkage rods with V-shaped structures on both sides to rotate in coordination through the transmission shaft, so as to drive the rigid or flexible roller brush to work against both sides of the guardrail. This design can flexibly switch the type of roller brush to adapt to the cleaning needs of different road sections. At the same time, with the help of the central rotation characteristics of the V-shaped linkage rod, when the working roller brush approaches, the non-working roller brush moves away simultaneously, which avoids interference, simplifies operation, and improves the scene adaptability and work efficiency of the equipment.

Description

Technical Field

[0001] This utility model specifically relates to a guardrail cleaning device for highway maintenance, belonging to the field of guardrail cleaning technology. Background Technology

[0002] National and provincial highway guardrails mostly use galvanizing or thickened powder coating processes, which have strong wear resistance. However, the coating of guardrails on urban roads and auxiliary roads is thinner and has relatively poor wear resistance. Currently, the guardrail cleaning devices used for highway maintenance are mainly roller brushes, but most roller brushes are fixed types, only divided into rigid roller brushes with hard filaments on the surface and flexible roller brushes with sponge or soft bristles. The pollution of guardrails varies significantly in different road sections. Guardrails on national highways and other sections with high traffic volume often have stubborn stains such as mud and sand clumps and asphalt residue, which require strong removal by rigid roller brushes. Guardrails on urban roads are mainly covered with floating dust and light stains, which are more suitable for gentle cleaning.

[0003] Current fixed roller brush designs make it difficult to switch modes flexibly. If a hard roller brush is used to clean urban guardrails, it can easily scratch the thin coating, causing rust and generating noise pollution. If a flexible roller brush is used to clean national highway guardrails, it is difficult to remove stubborn stains, and repeated operations increase energy consumption and costs.

[0004] To address the above problems, this application proposes a guardrail cleaning device for highway maintenance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a guardrail cleaning device for highway maintenance. Two sets of gears mesh and drive a transmission shaft to rotate V-shaped linkage rods on both sides, causing rigid or flexible roller brushes to adhere to both sides of the guardrail for cleaning. This design allows for flexible switching of roller brush types to adapt to the cleaning needs of different road sections. Simultaneously, by utilizing the central rotational characteristics of the V-shaped linkage rods, non-operational roller brushes move away synchronously when the working roller brush approaches, avoiding interference, simplifying operation, improving the device's adaptability to different scenarios and operational efficiency, and solving the problems mentioned in the background technology.

[0006] A guardrail cleaning device for highway maintenance, comprising:

[0007] upper frame;

[0008] Two sets of linkage rods are respectively located on both sides below the upper frame. The linkage rods are V-shaped and arranged in a mirror symmetrical manner on both horizontal sides, with their V-shaped openings facing opposite directions. One end of each linkage rod is equipped with a rigid roller brush, and the other end is equipped with a flexible roller brush. The center positions of the two sets of linkage rods on the same side in the vertical direction are fixedly connected by a drive shaft.

[0009] Two sets of gears are rotatably mounted inside the upper frame, and the two sets of gears mesh with each other; the upper ends of the two sets of transmission shafts are respectively fixedly connected to the center of the two sets of gears;

[0010] An electric three-way valve is installed at the top center of the upper frame.

[0011] Two sets of side water pipes are installed on both sides of the electric three-way valve. The side water pipes have a U-shaped structure. The side of the side water pipe away from the upper frame is connected to a flushing nozzle through a connecting pipe. The flushing nozzle is set at an angle.

[0012] In a preferred embodiment, the rigid roller brush surface is provided with nylon hard filaments, and the flexible roller brush surface is provided with sponge composite bristles.

[0013] In a preferred embodiment, both the flexible roller brush and the rigid roller brush are equipped with a rotating shaft at their center, and the upper and lower ends of the rotating shaft are rotatably connected to the linkage rods on their upper and lower sides, respectively.

[0014] In a preferred embodiment, a first motor and a second motor are respectively installed on both sides above the linkage rod. The output shaft of the first motor is connected to a rotating shaft connected to a rigid roller brush, and the output shaft of the second motor is connected to a rotating shaft connected to a flexible roller brush.

[0015] In a preferred embodiment, a third motor is installed on one side inside the upper frame. The output shaft of the third motor is connected to a set of gears. The first motor, the second motor, and the third motor are all electromagnetic brake motors, and their outer sides are waterproofed.

[0016] In a preferred embodiment, the two outlets of the electric three-way valve are connected to the side water pipe, and an external pipe is connected to its inlet. One side of the side water pipe is fixedly connected to the upper frame through a support block.

[0017] In a preferred embodiment, a fixed frame is fixedly connected to the upper part of the upper frame, and a mounting plate is fixedly connected to one side of the fixed frame via a connecting rod. The mounting plate has multiple sets of mounting holes on its surface.

[0018] Beneficial effects:

[0019] 1. Through the meshing transmission of two sets of gears, the V-shaped linkage rods on both sides can be synchronously driven by the transmission shaft to rotate in coordination. This drives two sets of rigid roller brushes or two sets of flexible roller brushes to approach each other and adhere to the surfaces on both sides of the guardrail for cleaning operations. This design enables flexible switching of roller brush operation modes and can quickly adjust the appropriate roller brush type according to different cleaning needs such as heavy pollution on national highways and light pollution in cities. At the same time, relying on the linkage characteristics of the rotation of the center of the V-shaped linkage rod, when two sets of roller brushes of the same type approach each other for operation, the other two sets of roller brushes of the same type move away from each other synchronously. This not only avoids interference from non-operational roller brushes to the guardrail, but also simplifies the switching operation process and improves the equipment's adaptability to different scenarios and its operating efficiency.

[0020] 2. The electric three-way valve can flexibly control the flow of cleaning liquid to the two sets of side water pipes. It can adjust the water outlet position according to the currently selected roller brush, and tilt the rinsing nozzle to aim at the cleaning area of ​​the guardrail to achieve pre-rinsing before the roller brush. When switching to the hard roller brush to clean stubborn stains, the pre-rinsing can soften mud and sand clumps, dilute asphalt residue, reduce hard brush wear and improve cleaning efficiency. When using the soft roller brush for light cleaning, the pre-rinsing can remove floating dust first, reduce the adhesion of stains to the brush bristles and extend the service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0023] Figure 3 This is a top view sectional diagram of the present invention.

[0024] Figure 4 This is a top view of the linkage mechanism in this utility model.

[0025] Figure 5 for Figure 1 A magnified structural diagram of part A.

[0026] In the diagram, 1. Upper frame; 2. Rigid roller brush; 3. Flexible roller brush; 4. Linkage rod; 5. Drive shaft; 6. First motor; 7. Second motor; 8. Mounting plate; 9. Connecting rod; 10. Side water pipe; 11. Flushing nozzle; 12. Connecting pipe; 13. Fixing frame; 14. Third motor; 15. External pipe; 16. Gear; 17. Electric three-way valve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 As shown, a guardrail cleaning device for highway maintenance includes:

[0029] Upper frame 1;

[0030] Two sets of linkage rods 4 are respectively located on both sides below the upper frame 1. The linkage rods 4 have a V-shaped structure, and the linkage rods 4 on both horizontal sides are arranged in a mirror symmetrical manner with their V-shaped openings facing opposite directions. One end of the linkage rod 4 is provided with a rigid roller brush 2, and the other end is provided with a flexible roller brush 3. The center positions of the two sets of linkage rods 4 in the vertical direction on the same side are fixedly connected by a transmission shaft 5.

[0031] Two sets of gears 16 are rotatably mounted inside the upper frame 1, and the two sets of gears 16 mesh with each other; the upper ends of the two sets of transmission shafts 5 are respectively fixedly connected to the center of the two sets of gears 16.

[0032] An electric three-way valve 17 is installed at the top center of the upper frame 1;

[0033] Two sets of side water pipes 10 are installed on both sides of the electric three-way valve 17. The side water pipes 10 have a U-shaped structure. The side of the side water pipe 10 away from the upper frame 1 is connected to a flushing nozzle 11 through a connecting pipe 12. The flushing nozzle 11 is set at an angle.

[0034] Please see Figures 1-4 As shown, the rigid roller brush 2 has nylon bristles on its surface, while the flexible roller brush 3 has sponge composite bristles on its surface. The nylon bristles can effectively remove mud and sand clumps, asphalt residue, and rust from the surface of the guardrail, making it suitable for cleaning heavily polluted sections of national and provincial highways, while minimizing wear and tear on the guardrail. The sponge composite bristles can gently remove dust and light stains, avoiding scratching the thin coating of urban road guardrails, thus achieving differentiated cleaning functions.

[0035] Please see Figure 4 As shown, both the flexible roller brush 3 and the rigid roller brush 2 have a rotating shaft installed at their center, and the upper and lower ends of the rotating shaft are rotatably connected to the linkage rods 4 on their upper and lower sides, respectively.

[0036] Please see Figures 1-2 As shown, a first motor 6 and a second motor 7 are respectively installed on both sides above the linkage rod 4. The output shaft of the first motor 6 is connected to the rotating shaft connected to the rigid roller brush 2, and the output shaft of the second motor 7 is connected to the rotating shaft connected to the flexible roller brush 3. The first motor 6 and the second motor 7 provide independent rotation power for the rigid roller brush 2 and the flexible roller brush 3 respectively, and can drive the corresponding roller brush to operate independently according to the cleaning needs.

[0037] Please see Figures 1-2As shown, a third motor 14 is installed on one side inside the upper frame 1. The output shaft of the third motor 14 is connected to one of the gears 16. The first motor 6, the second motor 7, and the third motor 14 are all electromagnetic brake motors. Their outer sides are waterproofed. The waterproofing treatment preferably uses waterproof sealant and rubber sealing rings. The third motor 14 provides power to the gear 16. Through the meshing of the gear 16, the transmission shaft 5 is rotated, which in turn drives the V-shaped linkage rod 4 to rotate to realize the switching of the brush position. The waterproofing treatment can effectively prevent sewage from seeping into the interior during the cleaning operation and avoid short circuit failure. The electromagnetic brake motor can automatically brake after power failure, thereby locking the gear 16.

[0038] Please see Figures 1-2 As shown, the two outlets of the electric three-way valve 17 are connected to the side water pipe 10, and the inlet is connected to the external pipe 15. One side of the side water pipe 10 is fixedly connected to the upper frame 1 through a support block. The external pipe 15 is used to connect to an external cleaning liquid source. The electric three-way valve 17 can flexibly control the flow of cleaning liquid to the corresponding side water pipe 10 according to the type of roller brush operation.

[0039] Please see Figures 1-2 As shown, a fixed frame 13 is fixedly connected to the upper frame 1. A mounting plate 8 is fixedly connected to one side of the fixed frame 13 via a connecting rod 9. Multiple sets of mounting holes are opened on the surface of the mounting plate 8. The cleaning device can be connected and fixed to external mobile equipment (such as maintenance vehicles or engineering vehicles) through the mounting holes on the mounting plate 8.

[0040] In practical use, the working principle of this utility model is as follows:

[0041] During operation, the device is fixedly connected to an external mobile device (such as a lifting device on a maintenance vehicle) through the mounting holes on the mounting plate 8 (bolts can be inserted into the mounting holes). The external pipe 15 is connected to the cleaning fluid source. Each motor and the electric three-way valve 17 can be connected to the control system of the work vehicle. Then, the control system can send control commands to lower the device and place it on the outside of the guardrail. Before the roller brush cleaning, the electric three-way valve 17 can be controlled to flexibly control the flow of cleaning fluid to the corresponding side water pipe 10 according to the selected side roller brush. The cleaning fluid is delivered to the flushing nozzle 11 through the side water pipe 10 and the connecting pipe 12. The inclined nozzle is precisely aimed at the cleaning area of ​​the guardrail for pre-rinsing. When switching to the hard roller brush 2, the pre-rinsing can soften the mud and sand clumps, dilute the asphalt residue, reduce the wear of the hard brush and improve the cleaning efficiency. When switching to the flexible roller brush 3, the pre-rinsing can remove the floating dust first.

[0042] Then, the third motor 14 can be activated to drive one set of gears 16 to rotate. With the meshing transmission of the two sets of gears 16, the transmission shafts 5 on both sides rotate synchronously, which in turn drives the V-shaped linkage rods 4 on both sides below the upper frame 1 to rotate in coordination. According to different cleaning needs such as heavy pollution on national highways and light pollution in cities, the two sets of rigid roller brushes 2 or two sets of flexible roller brushes 3 can be flexibly adjusted to bring the two sets of rigid roller brushes 2 closer to each other and adhere to the two sides of the guardrail. At the same time, relying on the linkage characteristic of the rotation of the center of the V-shaped linkage rods 4, the other two sets of roller brushes move away synchronously to avoid interfering with the guardrail. The next step is to activate the first motor 6 or the second motor 7 connected to the corresponding roller brush rotation shaft to drive the rigid roller brushes 2 or flexible roller brushes 3 to rotate for cleaning. The nylon bristles on the surface of the rigid roller brushes 2 can powerfully remove stubborn stains, while the sponge composite bristles on the surface of the flexible roller brushes 3 can gently clean up dust.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guardrail cleaning device for highway maintenance, characterized in that, include: Upper frame(1); Two sets of linkage rods (4) are respectively located on both sides below the upper frame (1). The linkage rods (4) are V-shaped structures, and the linkage rods (4) on both horizontal sides are arranged in a mirror symmetrical manner with opposite V-shaped opening directions. One end of the linkage rod (4) is provided with a rigid roller brush (2), and the other end is provided with a flexible roller brush (3). The center positions of the two sets of linkage rods (4) on the same side in the vertical direction are fixedly connected by a transmission shaft (5). Two sets of gears (16) are rotatably installed inside the upper frame (1), and the two sets of gears (16) mesh with each other; the upper ends of the two sets of transmission shafts (5) are respectively fixedly connected to the center of the two sets of gears (16); An electric three-way valve (17) is installed in the middle of the upper frame (1); Two sets of side water pipes (10) are installed on both sides of the electric three-way valve (17). The side water pipes (10) are U-shaped. The side of the side water pipes (10) away from the upper frame (1) is connected to a flushing nozzle (11) through a connecting pipe (12). The flushing nozzle (11) is set at an angle.

2. The guardrail cleaning device for highway maintenance as described in claim 1, characterized in that: The rigid roller brush (2) has nylon hard filaments on its surface, and the flexible roller brush (3) has sponge composite bristles on its surface.

3. The guardrail cleaning device for highway maintenance as described in claim 2, characterized in that: Both the flexible roller brush (3) and the rigid roller brush (2) are equipped with a rotating shaft at their center, and the upper and lower ends of the rotating shaft are rotatably connected to the linkage rods (4) on their upper and lower sides, respectively.

4. The guardrail cleaning device for highway maintenance as described in claim 3, characterized in that: The first motor (6) and the second motor (7) are respectively installed on the upper two sides of the linkage rod (4). The output shaft of the first motor (6) is connected to the rotating shaft connected to the rigid roller brush (2), and the output shaft of the second motor (7) is connected to the rotating shaft connected to the flexible roller brush (3).

5. The guardrail cleaning device for highway maintenance as described in claim 4, characterized in that: The upper frame (1) has a third motor (14) installed on one side inside. The output shaft of the third motor (14) is connected to a set of gears (16). The first motor (6), the second motor (7) and the third motor (14) are all electromagnetic brake motors, and their outer sides are waterproofed.

6. The guardrail cleaning device for highway maintenance as described in claim 1, characterized in that: The two outlets of the electric three-way valve (17) are connected to the side water pipe (10), and the inlet is connected to the external pipe (15). The side water pipe (10) is fixedly connected to the upper frame (1) by a support block on one side.

7. A guardrail cleaning device for highway maintenance as described in claim 6, characterized in that: A fixed frame (13) is fixedly connected above the upper frame (1). A mounting plate (8) is fixedly connected to one side of the fixed frame (13) via a connecting rod (9). Multiple sets of mounting holes are opened on the surface of the mounting plate (8).

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