Guardrail double-roller cleaning device and guardrail cleaning vehicle

Abstract

This utility model relates to a double-roller cleaning device and a guardrail cleaning vehicle. The double-roller cleaning device includes a mounting frame, a movable boom, a rotary drive component, and a cleaning mechanism. When encountering long or closed-loop guardrails, the rotary drive component drives the second working frame to rotate the second cleaning roller relative to the first working frame, allowing cleaning to begin at any position on the guardrail. Simultaneously, the rotary drive component drives the first working frame to rotate left and right relative to the movable boom, making it suitable for cleaning guardrails on narrow roads. Therefore, the aforementioned guardrail cleaning roller device enables the guardrail cleaning vehicle to be suitable for cleaning guardrails on narrow roads, long guardrails, and closed-loop guardrails, offering a wide range of applications. Furthermore, it allows selection of any position on the guardrail as the start and end point of cleaning, avoiding repetitive cleaning and improving the cleaning efficiency and convenience of complex guardrails.

Description

Technical Field

[0001] This utility model relates to the technical field of guardrail cleaning equipment, and in particular to a guardrail double-roller cleaning device and a guardrail cleaning vehicle. Background Technology

[0002] The guardrail cleaning vehicle is mainly used for cleaning guardrails on urban roads. Its cleaning device consists of an extended arm and two sets of opposing cleaning rollers installed under the extended arm. During cleaning, the guardrail is clamped between the two sets of cleaning rollers, and the two sides of the guardrail can be cleaned when the cleaning rollers rotate.

[0003] Because the guardrail is sandwiched between two sets of cleaning rollers, when the guardrail needs to be cleaned, the guardrail cleaning vehicle can only drive to one end of the guardrail and allow the guardrail to pass between the two sets of cleaning rollers during the vehicle's movement. It is not possible to sandwich the guardrail between the two sets of cleaning rollers from any position on the guardrail. If the guardrail is very long or closed-loop, the above cleaning method may result in repeated cleaning or may not be able to be cleaned directly at all, causing great inconvenience to guardrail cleaning. Utility Model Content

[0004] Therefore, it is necessary to provide a double-roller cleaning device and cleaning vehicle for guardrails that can clean guardrails from any position, is easy to clean, and has high cleaning efficiency.

[0005] A double-roller cleaning device for guardrails includes a mounting frame, a movable boom, a rotary drive component, and a cleaning mechanism.

[0006] One end of the movable boom is mounted on the mounting frame, and the other end is mounted on the rotary drive component;

[0007] The cleaning mechanism includes a first working frame, a first cleaning roller brush, a second working frame, a second cleaning roller brush, and a flipping drive component. The first working frame has a rotatable mounting point and a first rotatable connection point. The second working frame has a second rotatable connection point. The second rotatable connection point is rotatably connected to the first rotatable connection point. The first cleaning roller brush is rotatably mounted on the first working frame, and the second cleaning roller brush is rotatably mounted on the second working frame. The flipping drive component is configured to drive the second working frame to rotate relative to the working frame around the axis of rotation of the first rotatable connection point in a direction toward or away from the first cleaning roller brush, until the axis of rotation of the second cleaning roller brush is parallel to and spaced apart from the axis of rotation of the first cleaning roller brush, or the second cleaning roller brush rotates to the top of the first working frame.

[0008] The rotary drive component is connected to the rotary mounting point and is used to drive the first work frame to rotate around the rotating shaft of the rotary mounting point.

[0009] Wherein, the rotating shaft of the rotating mounting point is parallel to and spaced apart from the rotating shaft of the first cleaning brush, and the rotating shaft of the first rotating connection point is perpendicular to the rotating shaft of the rotating mounting point.

[0010] A guardrail cleaning vehicle includes a vehicle body and a guardrail cleaning device as described above; the mounting bracket is installed on the vehicle body.

[0011] When using the aforementioned double-roller cleaning device and cleaning vehicle for guardrails that are very long or have a closed loop, the cleaning vehicle can first be driven to the position on the guardrail where cleaning needs to begin. The second working frame is then driven by a tilting drive to tilt the second cleaning roller upwards relative to the first working frame until the second working frame is above the first working frame. The vehicle is then driven to a position where the first cleaning roller is close to the guardrail. The second working frame is then tilted downwards relative to the first working frame by the tilting drive to clamp the guardrail between the first and second cleaning rollers, facilitating subsequent double-sided cleaning. After cleaning is complete, the above steps are reversed to retract both the first and second cleaning rollers to a position close to or against the vehicle body. When the road for the guardrail cleaning vehicle is narrow, the first working frame can be driven by a rotary drive to rotate the second working frame relative to the boom in the forward direction. This causes the first and second cleaning rollers to be arranged alternately in the direction of travel. Then, the second working frame is flipped upward relative to the first working frame by a tilting drive. Next, the first working frame is rotated in the opposite direction relative to the boom by a rotary drive until the side of the first cleaning roller facing the second cleaning roller is close to the guardrail. Finally, the second working frame is flipped downward relative to the first working frame by a tilting drive until the guardrail is sandwiched between the first and second cleaning rollers. Therefore, the above-mentioned guardrail cleaning roller device makes the guardrail cleaning vehicle suitable for cleaning guardrails in narrow sections, cleaning long guardrails, and cleaning closed-loop guardrails. It has a wide range of applications and can also select any position on the guardrail as the start and end point of cleaning, avoiding the problem of repeated cleaning and improving the cleaning efficiency and convenience of complex guardrails. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the double-roller cleaning device for guardrails in a preferred embodiment of this utility model;

[0013] Figure 2 for Figure 1 Top view of the double roller cleaning device for guardrail shown;

[0014] Figure 3 for Figure 1 A partial enlarged view of the guardrail double-roller cleaning device;

[0015] Figure 4 for Figure 1 A partial enlarged view of section B of the guardrail double-roller cleaning device;

[0016] Figure 5 for Figure 1 A schematic diagram of the structure of the first working frame in the double-roller cleaning device for guardrails;

[0017] Figure 6 for Figure 1 A schematic diagram of the rotating drive component in the double-roller cleaning device for guardrails shown.

[0018] Figure 7 for Figure 2 A partial enlarged view of section C of the double-roller cleaning device for the guardrail shown.

[0019] Explanation of reference numerals in the detailed embodiments: 10, double-roller cleaning device for guardrails; 100, mounting frame; 200, movable boom; 210, first working arm; 220, second working arm; 221, first sub-arm; 2211, first rotation point; 2212, second rotation point; 222, second sub-arm; 2221, first connecting rod; 2222, second connecting rod; 223, lifting drive component; 230, horizontal rotation drive component; 300, rotation drive component; 310, first limiting part; 320, second limiting part; 330, third rotation point; 340, fourth rotation point; 400, cleaning mechanism; 410, first working frame; 411, rotating mounting frame. Points; 412, First rotating connection point; 413, First mating part; 414, Second mating part; 420, First cleaning roller brush; 430, Second working frame; 431, Second rotating connection point; 432, Main body of the working frame; 4321, Connecting hole; 433, Rotation adjustment structure; 4331, Long strip through hole; 433, Mounting plate; 434, First limiting screw; 435, Second limiting screw; 440, Second cleaning roller brush; 450, Tilting drive component; 460, First height limiting structure; 461, First limiting groove; 470, Second height limiting structure; 471, Second limiting groove; 500, Limiting component; 510, Limiting rod; 520, Snap ring. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements. It is also understood that when an element is referred to as being "between" two elements, it may be the only one between the two elements, or there may be one or more intermediate elements.

[0023] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0024] Figure 1 The diagram illustrates the structure of a double-roller cleaning device for guardrails according to one embodiment of the present invention. For ease of explanation, the accompanying drawings only show structures relevant to the embodiments of the present invention.

[0025] This utility model provides a guardrail double-roller cleaning device 10 and a guardrail cleaning vehicle. The guardrail cleaning vehicle includes a vehicle body (not shown) and the guardrail double-roller cleaning device 10.

[0026] The double-roller guardrail cleaning device 10 is installed on the vehicle body. The double-roller guardrail cleaning vehicle is used to clean guardrails that serve as barriers separating areas on roads and in recreational places such as playgrounds during the vehicle's operation.

[0027] Please see Figure 1 and Figure 2 The preferred embodiment of the guardrail double roller cleaning device 10 of this utility model includes a mounting frame 100, a movable arm 200, a rotary drive component 300, and a cleaning mechanism 400.

[0028] One end of the mobile boom 200 is mounted on the mounting frame 100, and the other end is mounted on the rotary drive component 300. In the guardrail cleaning vehicle, the mounting frame 100 is mounted on the vehicle body to enable the guardrail double roller cleaning device 10 to be installed on the vehicle body.

[0029] Please refer to the following: Figures 3 to 5 The cleaning mechanism 400 includes a first working frame 410, a first cleaning roller brush 420, a second working frame 430, a second cleaning roller brush 440, and a tilting drive 450. The first working frame 410 has a rotatable mounting point 411 and a first rotatable connection point 412. The second working frame 430 has a second rotatable connection point 431. The second rotatable connection point 431 is rotatably connected to the first rotatable connection point 412. The first cleaning roller brush 420 is rotatably mounted on the first working frame 410, and the second cleaning roller brush 440 is rotatably mounted on the second working frame 430. The flipping drive 450 is configured to drive the second work frame 430 to flip the second cleaning roller brush 440 relative to the work frame about the axis of rotation of the first rotation connection point 412 in a direction toward or away from the first cleaning roller brush 420, until the axis of rotation of the second cleaning roller brush 440 is parallel to and spaced apart from the axis of rotation of the first cleaning roller brush 420, or the second cleaning roller brush 440 flips to above the first work frame 410.

[0030] The rotary drive 300 is connected to the rotary mounting point 411 and is used to drive the first work frame 410 to rotate around the axis of the rotary mounting point 411.

[0031] The rotating shaft of the rotating mounting point 411 is parallel to and spaced apart from the rotating shaft of the first cleaning brush, and the rotating shaft of the first rotating connection point 412 is perpendicular to the rotating shaft of the rotating mounting point 411.

[0032] When the guardrail cleaning vehicle is on a horizontal plane, the rotation axis of the rotating mounting point 411 is vertical, the rotation axis of the first rotating connection point 412 is horizontal, and the spacing direction of the first cleaning roller brush 420 and the second cleaning roller brush 440 is a horizontal direction perpendicular to the rotation axis of the first rotating connection point 412. Therefore, the rotation drive 300 drives the first working frame 410 to rotate in the horizontal plane relative to the movable arm 200, and the flip drive 450 drives the second working frame 430 to flip up and down in the vertical plane relative to the first working frame 410.

[0033] When using the aforementioned double-roller cleaning device 10 and cleaning vehicle, if encountering a long or closed-loop guardrail, the cleaning vehicle can first be driven to the position on the guardrail where cleaning needs to begin. The second working frame 430 is then driven by the flipping drive 450 to flip the second cleaning roller brush 440 upwards relative to the first working frame 410 until the second working frame 430 is above the first working frame 410. The vehicle is then driven to a position where the first cleaning brush is close to the guardrail. The second working frame 430 is then driven downwards relative to the first working frame 410 by the flipping drive 450, clamping the guardrail between the first cleaning roller brush 420 and the second cleaning roller brush 440 to facilitate subsequent double-sided cleaning. After cleaning is completed, the above steps are reversed to retract both the first cleaning roller brush 420 and the second cleaning roller brush 440 to a position close to or against the vehicle body. When the road for the guardrail cleaning vehicle is narrow, the first working frame 410 can be driven by the rotary drive 300 to rotate the second working frame 430 in the forward direction relative to the movable boom 200, so that the first cleaning roller brush 420 and the second cleaning roller brush 440 are arranged at intervals in the direction of travel of the vehicle. Then, the second working frame 430 is driven to flip upward relative to the first working frame 410 by the flip drive 450. Then, the first working frame 410 is driven to rotate in the reverse direction relative to the movable boom 200 by the rotary drive 300 until the side of the first cleaning roller brush 420 facing the second cleaning roller brush 440 is facing and close to the guardrail. Then, the second working frame 430 is driven to flip downward relative to the first working frame 410 by the flip drive 450 until the guardrail is sandwiched between the first cleaning roller brush 420 and the second cleaning roller brush 440.

[0034] Therefore, the aforementioned guardrail cleaning roller brush device enables the guardrail cleaning vehicle to be suitable for cleaning guardrails in narrow road sections, cleaning guardrails of long lengths, and cleaning closed-loop guardrails, with a wide range of applications. At the same time, it can also select any position on the guardrail as the start and end point of cleaning, avoiding the problem of repeated cleaning and improving the cleaning efficiency and convenience of complex guardrails.

[0035] Of course, in order to improve the cleaning effect of the guardrail, the first working frame 410 can be rotated relative to the movable boom 200 by the rotary drive component 300, so that the first cleaning roller brush 420 and the second cleaning roller brush 440 are parallel and spaced apart along the walking direction of the vehicle body. At this time, the first cleaning roller brush 420 and the second cleaning roller brush 440 are located on the same side of the guardrail, which can achieve double cleaning of the guardrail, thereby improving the cleaning effect of the guardrail.

[0036] Please refer to the following: Figure 6In some embodiments, the rotary drive member 300 has a first limiting part 310 and a second limiting part 320 spaced apart along a direction perpendicular to the rotation axis direction of the rotation mounting point 411.

[0037] The first work frame 410 has a first mating part 413 and a second mating part 414 spaced apart along the rotation axis direction from the first rotation connection point 412 near the rotation mounting point 411. The spacing direction of the first limiting part 310 and the second limiting part 320 intersects the spacing direction of the first mating part 413 and the second mating part 414.

[0038] The rotary drive 300 is used to drive the first work frame 410 to rotate forward or backward around the rotation axis of the rotation mounting point 411 until the first mating part 413 and the first limiting part 310 cooperate with each other or the second mating part 414 and the second limiting part 320 cooperate with each other, so as to limit the rotation limit position of the first work frame 410.

[0039] The structure in which the first limiting part 310 and the first mating part 413 cooperate can be a mating pin or pin seat, a locking structure, or other locking structures, such as a hook structure or an elastically fitted locking structure. Typically, the structure in which the second limiting part 320 and the second mating part 414 cooperate is the same as or similar to the structure in which the first limiting part 310 and the first mating part 413 cooperate.

[0040] In actual use, the first limiting part 310 and the first cooperating part 413 cooperate with each other, and the second limiting part 320 and the second cooperating part 414 cooperate with each other to limit the two circumferential extreme positions of the first working frame 410 relative to the movable boom 200 around the rotating mounting point 411. At these two circumferential extreme positions, the first working frame 410 is locked, preventing the cleaning mechanism 400 from rotating relative to the movable boom 200 due to external force at these two circumferential extreme positions, thus improving the safety and reliability of the guardrail cleaning vehicle.

[0041] Please refer to it again. Figure 3 , Figure 5 and Figure 6 Furthermore, in some embodiments, the first limiting part 310 and the second limiting part 320 are both limiting holes formed on the housing of the rotary drive member 300. The first mating part 413 and the second mating part 414 are both through holes formed on the first work frame 410.

[0042] The guardrail double-roller cleaning device 10 also includes a limiting member 500. When the first limiting part 310 is aligned with the first mating part 413, the limiting member 500 passes through the first limiting part 310 and the first mating part 413 in sequence. When the second limiting part 320 is aligned with the second mating part 414, the limiting member 500 passes through the second limiting part 320 and the second mating part 414 in sequence.

[0043] Thus, when the first working frame 410 rotates relative to the movable boom 200 until the first limiting part 310 aligns with the first mating part 413, simply inserting the limiting member 500 into the first limiting part 310 and the first mating part 413 will lock them. Similarly, when the second limiting part 320 aligns with the second mating part 414, the operator only needs to insert the limiting member 500 into the second limiting part 320 and the second mating part 414 to lock them. Therefore, by setting both the first limiting part 310 and the first limiting part 314 as limiting holes, and both the first mating part 413 and the second mating part 414 as through holes, along with the limiting member 500, it is convenient to lock the first working frame 410 at its circumferential limit position relative to the movable boom 200, thus improving the ease of use of the guardrail cleaning vehicle.

[0044] Furthermore, in some embodiments, the limiting member 500 includes a limiting rod 510 and a retaining ring 520 disposed at one end of the limiting rod 510. A first height limiting structure 460 is provided at the position where the first mating part 413 is located on the first work frame 410. A curved first limiting groove 461 is formed at the top of the first height limiting structure 460. When the first limiting part 310 is aligned with the first mating part 413, the limiting rod 510 is inserted into the first limiting part 310 and the first mating part 413, and the retaining ring 520 slides into the first limiting groove 461 to limit the height position of the limiting rod 510. A second height limiting structure 470 is provided at the position where the first work frame 410 has a second mating part 414. A curved second limiting groove 471 is formed at the top of the second height limiting structure 470. When the second limiting part 320 is aligned with the second mating part 414, the limiting rod 510 is inserted into the second limiting part 320 and the second mating part 414, and the retaining ring 520 slides into the second limiting groove 471 to limit the height position of the limiting rod 510. Specifically, the depth directions of the first limiting groove 461 and the second limiting groove 471 are both intersected with the rotation axis direction of the rotating mounting point 411.

[0045] Thus, when the limiting rod 510 is inserted into the first mating part 413 and the first limiting part 310, and the retaining ring 520 slides into the first limiting groove 461, the height position of the limiting rod 510 can be limited by hooking the retaining ring 520 in the first limiting groove 461. Similarly, when the limiting rod 510 is inserted into the second mating part 414 and the second limiting part 320, and the retaining ring 520 slides into the second limiting groove 471, the height position of the limiting rod 510 can be limited by hooking the retaining ring 520 in the second limiting groove 471. Even if the limiting rod 510 is relatively loose in the first limiting part 310 and the first mating part 413 or in the second limiting part 320 and the second mating part 414, the probability of the limiting part 500 coming off the first limiting part 310 and the first mating part 413 or the second limiting part 320 and the second mating part 414 during the operation of the guardrail cleaning vehicle can be reduced, further improving the reliability of the guardrail cleaning vehicle.

[0046] See Figure 3 and Figure 7 In some embodiments, the second work frame 430 includes a work frame body 432, a rotation adjustment structure 433, and a connector (not shown). The second cleaning roller brush 440 is rotatably mounted on the work frame body 432. The work frame body 432 has a connecting hole 4321 near the first rotation connection point 412. One end of the rotation adjustment structure 433 has the second rotation connection point 431, and the other end has an elongated through hole 4331 perpendicular to the rotation axis direction of the second cleaning roller brush 440 and the rotation axis direction of the first rotation connection point 412. One end of the connector passes through the elongated through hole 4331, and the other end is connected to the connecting hole 4321.

[0047] Thus, by adjusting the position of the connector within the elongated through hole 4331, the distance between the first cleaning roller brush 420 and the second cleaning roller brush 440 can be adjusted when the rotating shafts of the first cleaning roller brush 420 and the second cleaning roller brush 440 are parallel and spaced apart, thereby meeting the needs of effective cleaning of guardrails of different thicknesses and further improving the versatility of the guardrail cleaning vehicle.

[0048] Furthermore, in some embodiments, a mounting plate 433 is provided at one end of the work frame body 432 near the first rotating connection point 412. The mounting plate 433 has a first limiting screw hole (not shown) and a second limiting screw hole (not shown) spaced apart. The second work frame 430 also includes a first limiting screw 434 screwed onto the first limiting screw hole and a second limiting screw 435 screwed onto the second limiting screw hole. One end of the first limiting screw 434 extends out of the first limiting screw hole and is configured to contact the end of the first work frame 410 where the first rotating connection point 412 is located. One end of the second limiting screw 435 extends out of the second limiting screw hole and is configured to contact the end of the rotation adjustment structure 433 away from the second rotating connection point 431.

[0049] The setting of the first limiting screw 434 and the second limiting screw 435 can limit the extreme distance between the first working frame 410 and the working frame body 432, so as to avoid the situation that the two sides of the guardrail cannot be effectively cleaned due to the excessive distance between the first cleaning roller brush 420 and the second cleaning roller brush 440 when they are set parallel and spaced apart.

[0050] In actual use, by turning the first limiting screw 434 and the second limiting screw 435, the length of the first limiting screw 434 extending out of the first limiting screw hole towards the first working frame 410 and the length of the second limiting screw 435 extending out of the second limiting screw hole away from the first working frame 410 can be adjusted, thereby achieving the limit distance when the rotating shafts of the first cleaning roller brush 420 and the second cleaning roller brush 440 are parallel and spaced apart.

[0051] Please refer to it again. Figure 1 and Figure 2 In some embodiments, the movable boom 200 includes a first working arm 210, a second working arm 220, and a horizontal rotation drive 230. One end of the first working arm 210 is mounted on the mounting bracket 100, and the other end is rotatably connected to one end of the second working arm 220. A rotation drive 300 is mounted on the end of the second working arm 220 away from the first working arm 210. The horizontal rotation drive 230 is used to drive the second working arm 220 to rotate relative to the first working arm 210. The axis of rotation at the rotatable connection between the second working arm 220 and the first working arm 210 is parallel to the axis of rotation at the mounting point.

[0052] When the guardrail cleaning vehicle is on a horizontal plane, the horizontal rotation drive 230 can drive the second working arm 220 to rotate the cleaning mechanism 400 relative to the first working arm 210 in the horizontal plane, so as to move the cleaning mechanism 400 in a direction closer to or away from the vehicle body. In this way, the guardrail cleaning vehicle can be used for guardrail cleaning work on narrower roads, making the application range of the guardrail cleaning vehicle wider.

[0053] Further, in some embodiments, the second working arm 220 includes a first sub-arm 221, a second sub-arm 222, and a lifting drive 223. One end of the first sub-arm 221 is rotatably connected to the end of the first working arm 210 away from the mounting frame 100, and the other end is rotatably connected to one end of the second sub-arm 222. The end of the second sub-arm 222 away from the first sub-arm 221 is rotatably connected to the rotary drive 300. The axis of rotation at the rotatable connection between the second sub-arm 222 and the first sub-arm 221 is parallel to the axis of rotation at the rotatable connection between the second sub-arm 222 and the rotary drive 300, and the axis of rotation at the rotatable connection between the second sub-arm 222 and the first sub-arm 221 is perpendicular to the axis of rotation at the rotatable connection between the first sub-arm 221 and the first working frame 410. The lifting drive 223 is used to drive the second sub-arm 222 to rotate relative to the first sub-arm 221, so that the first working frame 410 rises and falls parallel to the axis of rotation at the rotation mounting point 411.

[0054] It should be noted that parallel lifting refers to the smooth vertical lifting of an object, without tilting or flipping during the lifting process.

[0055] Therefore, the second working arm 220 is configured as the first sub-arm 221, the second sub-arm 222 and the lifting drive component 223, so that the movable arm 200 can drive the cleaning mechanism 400 to rise and fall, thereby adjusting the position and height of the cleaning mechanism 400. This ensures that the guardrail cleaning vehicle can meet the cleaning requirements of guardrails of different heights while ensuring the cleaning effect, and further improves the versatility of the guardrail cleaning vehicle.

[0056] Please refer to it again. Figure 4 Furthermore, in some embodiments, the end of the first sub-arm 221 away from the first working arm 210 is provided with a first rotation point 2211 and a second rotation point 2212 spaced apart along the rotation axis direction of the mounting rotation point. The end of the rotary drive member 300 away from the first working frame 410 is provided with a third rotation point 330 and a fourth rotation point 340 spaced apart along the rotation axis direction of the rotating mounting point 411. The rotation axes of the first rotation point 2211, the second rotation point 2212, the third rotation point 330, and the fourth rotation point 340 are all perpendicular to the rotation axis of the rotating mounting point 411.

[0057] The second sub-arm 222 includes a first link 2221 and a second link 2222. The two ends of the first link 2221 are rotatably connected to the first rotation point 2211 and the third rotation point 330, respectively, and the two ends of the second link 2222 are rotatably connected to the second rotation point 2212 and the fourth rotation point 340, respectively, to form a parallelogram mechanism.

[0058] Thus, the first sub-arm 221, the first connecting rod 2221, the second connecting rod 2222, and the rotary drive 300 form a parallelogram-shaped four-bar linkage. The parallel lifting of the cleaning mechanism 400 can be achieved by a lifting drive 223 cooperating with the four-bar linkage, making the structure of the guardrail cleaning vehicle relatively simple.

[0059] Of course, in other embodiments, there can be two lifting drive components 223. One lifting drive component 223 is used to drive the second sub-arm 222 to flip up or down relative to the first sub-arm 221, and the other lifting drive component 223 is used to drive the first work frame 410 to flip down or up relative to the second sub-arm 222. Through the cooperation of the two lifting drive components 223, the parallel lifting of the first work frame 410 can be guaranteed.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A double-roller cleaning device for guardrails, characterized in that, Includes mounting bracket, movable boom, rotary drive components, and cleaning mechanism; One end of the movable boom is mounted on the mounting frame, and the other end is mounted on the rotary drive component; The cleaning mechanism includes a first working frame, a first cleaning roller brush, a second working frame, a second cleaning roller brush, and a flipping drive component. The first working frame has a rotatable mounting point and a first rotatable connection point. The second working frame has a second rotatable connection point. The second rotatable connection point is rotatably connected to the first rotatable connection point. The first cleaning roller brush is rotatably mounted on the first working frame, and the second cleaning roller brush is rotatably mounted on the second working frame. The flipping drive component is configured to drive the second working frame to rotate relative to the working frame around the axis of rotation of the first rotatable connection point in a direction toward or away from the first cleaning roller brush, until the axis of rotation of the second cleaning roller brush is parallel to and spaced apart from the axis of rotation of the first cleaning roller brush, or the second cleaning roller brush rotates to the top of the first working frame. The rotary drive component is connected to the rotary mounting point and is used to drive the first work frame to rotate around the rotating shaft of the rotary mounting point. The rotating shaft of the rotating mounting point is parallel to and spaced apart from the rotating shaft of the first cleaning roller brush, and the rotating shaft of the first rotating connection point is perpendicular to the rotating shaft of the rotating mounting point.

2. The guardrail double-roller cleaning device according to claim 1, characterized in that, The rotary drive component has a first limiting part and a second limiting part spaced apart in a direction perpendicular to the rotation axis direction of the rotary mounting point; The first work frame has a first mating part and a second mating part at a position near the rotating mounting point, which are spaced apart along the rotation axis direction of the first rotating connection point; the spacing direction of the first limiting part and the second limiting part intersects the spacing direction of the first mating part and the second mating part. The rotary drive is used to drive the first work frame to rotate forward or backward around the rotation axis of the rotation mounting point until the first mating part and the first limiting part cooperate with each other or the second mating part and the second limiting part cooperate with each other, so as to limit the rotation limit position of the first work frame.

3. The guardrail double-roller cleaning device according to claim 2, characterized in that, Both the first limiting part and the second limiting part are limiting holes formed on the outer shell of the rotary drive component; both the first mating part and the second mating part are through holes formed on the first work frame. The guardrail double-roller cleaning device also includes a limiting member; when the first limiting part is aligned with the first mating part, the limiting member is sequentially inserted through the first limiting part and the first mating part; when the second limiting part is aligned with the second mating part, the limiting member is sequentially inserted through the second limiting part and the second mating part.

4. The guardrail double-roller cleaning device according to claim 3, characterized in that, The limiting component includes a limiting rod and a retaining ring disposed at one end of the limiting rod; The first working frame is provided with a first height limiting structure at the position of the first mating part; the top of the first height limiting structure is formed with a curved first limiting groove; when the first limiting part is aligned with the first mating part, the limiting rod is inserted into the first limiting part and the first mating part, and the retaining ring slides into the first limiting groove to limit the height position of the limiting rod; The first working frame is provided with a second height limiting structure at the position of the second mating part; the top of the second height limiting structure is formed with a curved second limiting groove; when the second limiting part is aligned with the second mating part, the limiting rod is inserted into the second limiting part and the second mating part, and the retaining ring slides into the second limiting groove to limit the height position of the limiting rod.

5. The guardrail double-roller cleaning device according to claim 1, characterized in that, The second working frame includes a working frame body, a rotation adjustment structure, and a connecting member; the second cleaning roller brush is rotatably mounted on the working frame body; a connecting hole is provided on the working frame body near the first rotation connection point; one end of the rotation adjustment structure has the second rotation connection point, and the other end has an elongated through hole in a direction perpendicular to the rotation axis direction of the second cleaning roller brush and the rotation axis direction of the first rotation connection point; one end of the connecting member passes through the elongated through hole, and the other end is connected to the connecting hole.

6. The guardrail double-roller cleaning device according to claim 5, characterized in that, The main body of the work frame is provided with a mounting plate at one end near the first rotating connection point; the mounting plate is provided with a first limiting screw hole and a second limiting screw hole spaced apart; the second work frame also includes a first limiting screw rod screwed onto the first limiting screw hole and a second limiting screw rod screwed onto the second limiting screw hole; one end of the first limiting screw rod extends out of the first limiting screw hole and is configured to contact the end of the first work frame at the end where the first rotating connection point is located; one end of the second limiting screw rod extends out of the second limiting screw hole and is configured to contact the end of the rotation adjustment structure away from the second rotating connection point.

7. The guardrail double-roller cleaning device according to claim 1, characterized in that, The movable boom includes a first working arm, a second working arm, and a horizontal rotation drive; one end of the first working arm is mounted on the mounting frame, and the other end is rotatably connected to one end of the second working arm; the rotation drive is mounted on the end of the second working arm away from the first working arm; the horizontal rotation drive is used to drive the second working arm to rotate relative to the first working arm; the pivot at the rotatable connection between the second working arm and the first working arm is parallel to the pivot at the mounting point.

8. The guardrail double-roller cleaning device according to claim 7, characterized in that, The second working arm includes a first sub-arm, a second sub-arm, and a lifting drive; one end of the first sub-arm is rotatably connected to the end of the first working arm away from the mounting frame, and the other end is rotatably connected to one end of the second sub-arm; the end of the second sub-arm away from the first sub-arm is rotatably connected to the rotation drive; the axis of rotation at the rotatable connection between the second sub-arm and the first sub-arm is parallel to the axis of rotation at the rotatable connection between the second sub-arm and the rotation drive, and the axis of rotation at the rotatable connection between the second sub-arm and the first sub-arm is perpendicular to the axis of rotation at the rotatable connection between the first sub-arm and the first working frame; the lifting drive is used to provide a mechanism to drive the second sub-arm to rotate relative to the first sub-arm, so that the first working frame is raised and lowered parallel to the axis of rotation at the rotatable mounting point.

9. The guardrail double-roller cleaning device according to claim 8, characterized in that, The end of the first sub-arm away from the first working arm is provided with a first rotation point and a second rotation point at intervals along the rotation axis direction of the rotation mounting point; the end of the rotary drive member away from the first working frame is provided with a third rotation point and a fourth rotation point at intervals along the rotation axis direction of the rotation mounting point; the rotation axes of the first rotation point, the second rotation point, the third rotation point, and the fourth rotation point are all perpendicular to the rotation axis of the rotation mounting point; The second sub-arm includes a first link and a second link; the two ends of the first link are rotatably connected to the first rotation point and the third rotation point, respectively, and the two ends of the second link are rotatably connected to the second rotation point and the fourth rotation point, respectively, to form a parallelogram mechanism.

10. A guardrail cleaning vehicle, characterized in that, It includes a vehicle body and a guardrail double-roller cleaning device as described in any one of claims 1 to 9; the mounting bracket is mounted on the vehicle body.

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