A cleaning device and guardrail cleaning vehicle

By adopting a rotatable second load-bearing arm and elastic components in the guardrail cleaning vehicle, the problem of damage to the roller brush mechanism during the cleaning process is solved, achieving a safe and reliable anti-collision buffering effect.

CN224363241UActive Publication Date: 2026-06-16ZOOMLION ENVIRONMENTAL IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZOOMLION ENVIRONMENTAL IND CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing guardrail cleaning vehicle has a rigid connection between the roller brush mechanism and the support arm, which is easily damaged during the cleaning process, resulting in poor safety.

Method used

The brush mechanism employs a second support arm that is rotatably mounted on the extension frame and an elastic element connecting the second support arm and the extension frame to achieve anti-collision buffering. The elastic element drives the second support arm to rotate under external force for buffering.

Benefits of technology

While ensuring cleaning effectiveness, damage to the internal structure of the roller brush mechanism is avoided, thus improving safety and cushioning effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of cleaning device and guardrail washing car, it is related to urban cleaning technical field.The cleaning device includes first bearing arm, second bearing arm, extension frame, elastic member and rolling brush mechanism.First bearing arm is connected with extension frame, second bearing arm is rotatably installed in extension frame, and is connected with rolling brush mechanism, second bearing arm is connected with extension frame by elastic member, and elastic member is used to buffer second bearing arm when rolling brush mechanism is acted by external force and drives second bearing arm to rotate relative to extension frame.Compared with prior art, the cleaning device provided by the utility model can realize the anti-collision buffer of rolling brush mechanism under the condition of guaranteeing cleaning effect, avoid the damage of internal structure, and has good buffer effect and is safe and reliable.
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Description

Technical Field

[0001] This utility model relates to the field of urban cleaning technology, specifically to a sweeping device and a guardrail cleaning vehicle. Background Technology

[0002] Currently, with the continuous expansion of urban areas and increasingly stringent urban environmental requirements, the demand for cleaning urban guardrails is also increasing, leading to a rise in the frequency of use of guardrail cleaning vehicles. However, the roller brush mechanism in current guardrail cleaning vehicles is generally fixedly mounted on the support arm (the roller brush mechanism is rigidly connected to the support arm). Because the roller brush mechanism may collide with the guardrail or other external objects during the cleaning process, the connection between the roller brush mechanism and the support arm may be damaged or even broken, resulting in poor safety.

[0003] In view of this, designing and manufacturing a cleaning device with good cushioning effect and strong safety, as well as a guardrail cleaning vehicle, is particularly important in urban cleaning. Utility Model Content

[0004] The purpose of this utility model is to provide a cleaning device that can achieve anti-collision buffering of the roller brush mechanism while ensuring the cleaning effect, avoid damage to the internal structure, and has a good buffering effect, making it safe and reliable.

[0005] Another objective of this utility model is to provide a guardrail cleaning vehicle that can achieve anti-collision buffering of the roller brush mechanism while ensuring the cleaning effect, avoiding damage to the internal structure, with good buffering effect and safety and reliability.

[0006] This utility model is achieved by the following technical solution.

[0007] A cleaning device includes a first support arm, a second support arm, an extension frame, an elastic element, and a roller brush mechanism. The first support arm is connected to the extension frame, and the second support arm is rotatably mounted on the extension frame and connected to the roller brush mechanism. The second support arm is connected to the extension frame through an elastic element, which is used to buffer the second support arm when the roller brush mechanism is subjected to an external force and causes the second support arm to rotate relative to the extension frame.

[0008] Optionally, the second support arm is perpendicular to the first support arm, and the extension and retraction direction of the elastic element is the same as the length direction of the first support arm.

[0009] Optionally, the second bearing arm is cylindrical, and a retaining member is connected to the outside of the second bearing arm. The extension frame is provided with a pressure plate, and the elastic member is clamped between the pressure plate and the retaining member.

[0010] Optionally, the extension frame is provided with adjusting bolts, which are connected to the pressure plate. The adjusting bolts are used to adjust the distance between the pressure plate and the abutment to adjust the preload of the elastic element.

[0011] Optionally, the extension frame is provided with multiple guide posts, which are arranged in parallel and spaced apart. The extension direction of the guide posts is the same as the extension direction of the adjusting bolts, and the pressure plate is slidably arranged between the multiple guide posts.

[0012] Optionally, the abutment includes a first welded part, a connecting part and a second welded part connected in sequence. The first welded part and the second welded part are disposed opposite to each other at both ends of the connecting part and are perpendicular to the connecting part. The first welded part (1) and the second welded part (3) are both welded to the second bearing arm, and the elastic member abuts against the connecting part (2).

[0013] Optionally, the second support arm includes a mounting base, an arm body, a fixing plate, and a bending plate. One end of the mounting base is connected to the arm body via the bending plate, and the other end is connected to the arm body via the fixing plate. The mounting base is rotatably connected to the extension frame via a pin.

[0014] Optionally, the extension frame includes two spaced-apart curved beams, a mounting base is disposed between the two curved beams, and a pin is disposed through one curved beam, the mounting base and the other curved beam in sequence.

[0015] Optionally, there are two elastic elements, which are arranged opposite each other on the upper and lower sides of the second bearing arm, and the two elastic elements extend and retract in the same direction.

[0016] A guardrail cleaning vehicle includes the aforementioned cleaning device, which includes a first support arm, a second support arm, an extension frame, an elastic element, and a roller brush mechanism. The first support arm is connected to the extension frame, and the second support arm is rotatably mounted on the extension frame and connected to the roller brush mechanism. The second support arm is connected to the extension frame through the elastic element, which is used to buffer the second support arm when the roller brush mechanism is subjected to external force and drives the second support arm to rotate relative to the extension frame.

[0017] The cleaning device and guardrail cleaning vehicle provided by this utility model have the following beneficial effects:

[0018] The cleaning device provided by this utility model has a first support arm connected to an extension frame, and a second support arm rotatably mounted on the extension frame and connected to a roller brush mechanism. The second support arm is connected to the extension frame via an elastic element, which buffers the second support arm when the roller brush mechanism is subjected to external force and causes the second support arm to rotate relative to the extension frame. Compared with the prior art, the cleaning device provided by this utility model, due to the use of a second support arm rotatably mounted on the extension frame and an elastic element connecting the second support arm and the extension frame, can achieve anti-collision buffering of the roller brush mechanism while ensuring cleaning effect, avoiding damage to the internal structure, with good buffering effect and high safety and reliability.

[0019] The guardrail cleaning vehicle provided by this utility model includes a sweeping device that can achieve anti-collision buffering of the roller brush mechanism while ensuring the sweeping effect, avoiding damage to the internal structure. It has a good buffering effect and is safe and reliable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view structural schematic diagram of the cleaning device provided in an embodiment of the present utility model;

[0022] Figure 2 This is a structural schematic diagram of the cleaning device provided in an embodiment of the present utility model from a second perspective;

[0023] Figure 3 This is a structural schematic diagram of the cleaning device provided in an embodiment of the present utility model from a third-view perspective;

[0024] Figure 4 A schematic diagram of the structure in the cleaning device provided in this embodiment of the utility model, in which the extension frame is connected to the second bearing arm via an elastic element;

[0025] Figure 5 This is a schematic diagram of the structure of the outer connecting support member of the second bearing arm in the cleaning device provided in this embodiment of the utility model.

[0026] Icons: 100-Cleaning device; 110-First support arm; 120-Second support arm; 121-Supporting member; 1211-First welded part; 1212-Connecting part; 1213-Second welded part; 122-Fixed section; 123-Telescopic section; 124-Pin shaft; 125-Mounting base; 126-Arm body; 127-Bend plate; 130-Extension frame; 131-Pressure plate; 132-Adjusting bolt; 133-Guide column; 134-Bent beam; 140-Elastic element; 150-Roller brush mechanism; 151-First roller brush assembly; 1511-Connecting frame; 1512-Drive unit; 1513-Roller brush; 152-Second roller brush assembly; 160-Swinging assembly. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0033] Please refer to the reference. Figures 1 to 5This utility model embodiment provides a guardrail cleaning vehicle (not shown in the figure) for rapid cleaning of urban guardrails. It can achieve anti-collision buffering of the roller brush mechanism 150 while ensuring cleaning effectiveness, avoiding damage to the internal structure. It offers good buffering effect and is safe and reliable.

[0034] It should be noted that the guardrail cleaning vehicle includes a vehicle body (not shown in the figure) and a sweeping device 100. The sweeping device 100 is mounted on the vehicle body, and the vehicle body is used to drive the sweeping device 100 to move along the extension direction of the guardrail. The sweeping device 100 is used to perform roller brush cleaning on the guardrail during the movement.

[0035] The cleaning device 100 includes a first support arm 110, a second support arm 120, an extension frame 130, an elastic element 140, and a roller brush mechanism 150. The first support arm 110 is connected to the extension frame 130 and can fix the extension frame 130. The second support arm 120 is rotatably mounted on the extension frame 130 and connected to the roller brush mechanism 150. The second support arm 120 is hinged to the extension frame 130 and can rotate relative to the extension frame 130. The roller brush mechanism 150 can rotate with the second support arm 120 relative to the extension frame 130. The second support arm 120 is connected to the extension frame 130 via an elastic element 140. The elastic element 140 buffers the second support arm 120 when the roller brush mechanism 150 is subjected to external force, causing the second support arm 120 to rotate relative to the extension frame 130. This reduces the amount of rotation of the second support arm 120 relative to the extension frame 130 and gradually dissipates the impact force on the roller brush mechanism 150 until the second support arm 120 returns to its original position. In this way, the roller brush mechanism 150 can be anti-collision buffered while ensuring the cleaning effect, avoiding damage to the internal structure. The buffering effect is good, and the system is safe and reliable.

[0036] Furthermore, the second support arm 120 is perpendicular to the first support arm 110, and the extension and retraction direction of the elastic element 140 is the same as the length direction of the first support arm 110, so as to apply elastic force to the second support arm 120, thereby realizing the buffering and shock absorption function. Specifically, both the first support arm 110 and the second support arm 120 are telescopic arms. The length direction of the first support arm 110 is vertical, and the length direction of the second support arm 120 is horizontal. The first support arm 110 can drive the roller brush mechanism 150 to rise or fall vertically through the extension frame 130 and the second support arm 120 in sequence. The second support arm 120 can drive the roller brush mechanism 150 to move horizontally, so as to flexibly adjust the position of the roller brush mechanism 150 and facilitate cleaning of the guardrail.

[0037] Preferably, the second support arm 120 is cylindrical, and a retaining member 121 is connected to the outside of the second support arm 120. The extension frame 130 is provided with a pressure plate 131, and the elastic member 140 is clamped between the pressure plate 131 and the retaining member 121. The pressure plate 131 and the retaining member 121 work together to limit the position of the elastic member 140, ensuring that the elastic member 140 can only apply elastic force to the second support arm 120 in the vertical direction, preventing the elastic member 140 from tilting or shifting, and improving the buffering effect.

[0038] In this embodiment, the extension frame 130 is provided with an adjusting bolt 132, which is connected to the pressure plate 131. The adjusting bolt 132 is used to adjust the distance between the pressure plate 131 and the abutment member 121, thereby adjusting the length of the elastic member 140, and thus adjusting the preload of the elastic member 140, and further adjusting the buffering force of the elastic member 140. Specifically, when the preload of the elastic member 140 is large, the buffering force of the elastic member 140 is large, and the elastic member 140 is not easily deformed, which enables the second bearing arm 120 to reset quickly; when the preload of the elastic member 140 is small, the buffering force of the elastic member 140 is small, and the elastic member 140 is easily deformed, which enables the second bearing arm 120 to reset slowly.

[0039] Preferably, the extension frame 130 is provided with multiple guide posts 133. The multiple guide posts 133 are arranged in parallel and spaced apart, and the extending direction of the guide posts 133 is the same as the extending direction of the adjusting bolts 132. The pressure plate 131 is slidably disposed between the multiple guide posts 133. The multiple guide posts 133 work together to guide and limit the pressure plate 131, preventing it from tilting during position adjustment and ensuring the stability of the pressure plate 131's position adjustment. In this embodiment, there are four guide posts 133, arranged in a circular array outside the pressure plate 131.

[0040] The supporting member 121 includes a first welded portion 1211, a connecting portion 1212, and a second welded portion 1213 connected in sequence. The first welded portion 1211 and the second welded portion 1213 are disposed opposite to each other at both ends of the connecting portion 1212 and are both perpendicular to the connecting portion 1212. Specifically, the first welded portion 1211 and the second welded portion 1213 are both welded to the second bearing arm 120 to fix the relative position of the supporting member 121 and the second bearing arm 120; the elastic member 140 abuts against the connecting portion 1212 so that the pressure plate 131 can apply elastic force to the second bearing arm 120 through the elastic member 140.

[0041] In this embodiment, there are two elastic elements 140. The two elastic elements 140 are disposed opposite each other on the upper and lower sides of the second support arm 120, and the extension and retraction directions of the two elastic elements 140 are the same. The two elastic elements 140 work together to apply elastic force to the second support arm 120 at the same time, thereby enhancing the buffering and shock absorption effect. Specifically, there are two pressure plates 131 and two abutment members 121. One elastic element 140 is sandwiched between the connecting part 1212 of one abutment member 121 and a pressure plate 131, and the other elastic element 140 is sandwiched between the connecting part 1212 of another abutment member 121 and another pressure plate 131. When the second support arm 120 rotates clockwise relative to the extension frame 130, the first elastic element 140 shortens and the second elastic element 140 extends, and both elastic elements 140 can apply a buffering force to the second support arm 120; when the second support arm 120 rotates counterclockwise relative to the extension frame 130, the first elastic element 140 extends and the second elastic element 140 shortens, and both elastic elements 140 can apply a buffering force to the second support arm 120.

[0042] In this embodiment, the second support arm 120 includes a mounting base 125, an arm body 126, a fixing plate, and a bending plate 127. One end of the mounting base 125 is connected to the arm body 126 via the bending plate 127, and the other end is connected to the arm body 126 via the fixing plate (not shown) to fix the relative position of the mounting base 125 and the arm body 126. The mounting base 125 is rotatably connected to the extension frame 130 via a pin 124, allowing the mounting base 125 to rotate relative to the extension frame 130, which in turn guides and limits the mounting base 125. Specifically, there are two bending plates 127 spaced apart. The mounting base 125 is welded to the arm body 126 via the fixing plate and the two bending plates 127 to improve the connection strength between the mounting base 125 and the arm body 126.

[0043] Furthermore, the extension frame 130 includes two spaced-apart curved beams 134. A mounting base 125 is disposed between the two curved beams 134. A pin 124 passes sequentially through one curved beam 134, the mounting base 125, and the other curved beam 134, allowing the mounting base 125 to rotate simultaneously relative to both curved beams 134, thus achieving a rotatable connection between the mounting base 125 and the extension frame 130. Specifically, the pin 124 can be fixedly connected to the mounting base 125 and rotatably engaged with the curved beam 134, or it can rotatably engage with the mounting base 125 and be fixedly connected to the curved beam 134; the connection method of the pin 124 is not specifically limited.

[0044] The roller brush mechanism 150 includes a first roller brush assembly 151 and a second roller brush assembly 152. The arm body 126 of the second support arm 120 includes a fixed section 122 and a telescopic section 123 that can extend or retract relative to the fixed section 122. The fixed section 122 is hinged to the extension frame 130. The first roller brush assembly 151 is connected to the fixed section 122, and the second roller brush assembly 152 is connected to the telescopic section 123. The telescopic section 123 can move the second roller brush assembly 152 away from or closer to the first roller brush assembly 151, so that the first roller brush assembly 151 and the second roller brush assembly 152 are clamped on both sides of the guardrail. The first roller brush assembly 151 and the second roller brush assembly 152 work together to clean both sides of the guardrail simultaneously, improving cleaning efficiency and enhancing cleaning effect.

[0045] The first roller brush assembly 151 includes a connecting frame 1511, a drive unit 1512, and a roller brush 1513. The connecting frame 1511 is connected to a fixed section 122, which can fix the connecting frame 1511. The roller brush 1513 is rotatably mounted on the connecting frame 1511. The drive unit 1512 is connected to the roller brush 1513 in a transmission manner. The drive unit 1512 can drive the roller brush 1513 to rotate relative to the connecting frame 1511 to clean the railing, thereby realizing the railing cleaning function.

[0046] In this embodiment, the specific structure of the second roller brush assembly 152 is the same as that of the first roller brush assembly 151, and will not be described again here.

[0047] Preferably, the roller brush mechanism 150 further includes a swing assembly 160. The swing assembly 160 is mounted on the telescopic section 123 and connected to the second roller brush assembly 152. The telescopic section 123 is used to drive the second roller brush assembly 152 away from or closer to the first roller brush assembly 151 via the swing assembly 160. The swing assembly 160 is used to drive the second roller brush assembly 152 to rotate around the axial direction of the telescopic section 123, so as to flexibly adjust the position of the second roller brush assembly 152.

[0048] Specifically, during the use of the cleaning device 100, the first support arm 110 first uses the extension frame 130 to drive the second support arm 120 and the roller brush mechanism 150 to rise or fall to the height of the guardrail; then, the second support arm 120 drives the second roller brush assembly 152 away from the first roller brush assembly 151, so that a preset space is formed between the first roller brush assembly 151 and the second roller brush assembly 152; then, the swing assembly 160 drives the second roller brush assembly 152 to rotate 90 degrees, so as to expose the preset space. The vehicle moves to position the guardrail within a preset space. Then, the swing assembly 160 rotates the second roller brush assembly 152 90 degrees so that the guardrail is positioned between the first roller brush assembly 151 and the second roller brush assembly 152. Next, the second support arm 120 moves the second roller brush assembly 152 closer to the first roller brush assembly 151 so that both the first roller brush assembly 151 and the second roller brush assembly 152 are in contact with the guardrail. Finally, the first roller brush assembly 151 and the second roller brush assembly 152 are activated to clean the guardrail.

[0049] The cleaning device 100 provided in this embodiment of the utility model has a first support arm 110 connected to an extension frame 130, and a second support arm 120 rotatably mounted on the extension frame 130 and connected to a roller brush mechanism 150. The second support arm 120 is connected to the extension frame 130 via an elastic member 140, which buffers the second support arm 120 when the roller brush mechanism 150 is subjected to external force and rotates relative to the extension frame 130. Compared with the prior art, the cleaning device 100 provided by this utility model, due to the use of a second support arm 120 rotatably mounted on the extension frame 130 and an elastic member 140 connecting the second support arm 120 and the extension frame 130, can achieve anti-collision buffering of the roller brush mechanism 150 while ensuring the cleaning effect, avoiding damage to the internal structure. This results in good buffering effect and reliable safety. Consequently, the guardrail cleaning vehicle exhibits good anti-collision performance and excellent cleaning effect.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cleaning device, characterized in that, The device includes a first support arm (110), a second support arm (120), an extension frame (130), an elastic element (140), and a roller brush mechanism (150). The first support arm (110) is connected to the extension frame (130). The second support arm (120) is rotatably mounted on the extension frame (130) and connected to the roller brush mechanism (150). The second support arm (120) is connected to the extension frame (130) through the elastic element (140). The elastic element (140) is used to buffer the second support arm (120) when the roller brush mechanism (150) is subjected to an external force and causes the second support arm (120) to rotate relative to the extension frame (130).

2. The cleaning device according to claim 1, characterized in that, The second support arm (120) is perpendicular to the first support arm (110), and the extension and retraction direction of the elastic element (140) is the same as the length direction of the first support arm (110).

3. The cleaning device according to claim 1, characterized in that, The second support arm (120) is cylindrical, and a retaining member (121) is connected to the outside of the second support arm (120). The extension frame (130) is provided with a pressure plate (131), and the elastic member (140) is clamped between the pressure plate (131) and the retaining member (121).

4. The cleaning device according to claim 3, characterized in that, The extension frame (130) is provided with an adjusting bolt (132), which is connected to the pressure plate (131). The adjusting bolt (132) is used to adjust the distance between the pressure plate (131) and the abutment (121) to adjust the preload of the elastic element (140).

5. The cleaning device according to claim 4, characterized in that, The extension frame (130) is provided with a plurality of guide posts (133), which are arranged in parallel and spaced apart. The extension direction of the guide posts (133) is the same as the extension direction of the adjusting bolt (132). The pressure plate (131) is slidably arranged between the plurality of guide posts (133).

6. The cleaning device according to claim 3, characterized in that, The supporting member (121) includes a first welded part (1211), a connecting part (1212), and a second welded part (1213) connected in sequence. The first welded part (1211) and the second welded part (1213) are disposed opposite to each other at both ends of the connecting part (1212) and are both perpendicular to the connecting part (1212). The first welded part (1211) and the second welded part (1213) are both welded to the second bearing arm (120). The elastic member (140) abuts against the connecting part (1212).

7. The cleaning device according to claim 1, characterized in that, The second support arm (120) includes a mounting base (125), an arm body (126), a fixing plate, and a bending plate (127). One end of the mounting base (125) is connected to the arm body (126) through the bending plate (127), and the other end is connected to the arm body (126) through the fixing plate. The mounting base (125) is rotatably connected to the extension frame (130) through a pin (124).

8. The cleaning device according to claim 7, characterized in that, The extension frame (130) includes two spaced-apart curved beams (134), the mounting base (125) is disposed between the two curved beams (134), and the pin (124) passes through one of the curved beams (134), the mounting base (125) and the other curved beam (134) in sequence.

9. The cleaning device according to claim 1, characterized in that, The number of elastic elements (140) is two, and the two elastic elements (140) are arranged opposite to each other on the upper and lower sides of the second bearing arm (120), and the extension and retraction directions of the two elastic elements (140) are the same.

10. A guardrail cleaning vehicle, characterized in that, Includes the cleaning device as described in any one of claims 1-9.