Sweeper

Abstract

The utility model provides a sweeper, comprising: a vehicle body; a roller brush, rotatably arranged at the bottom of the vehicle body, the roller brush being used to sweep the objects to be swept on the base to be swept; a protective structure, positionally adjustable and arranged on the vehicle body, the protective structure having a closed position and an open position; wherein, when the protective structure is in the closed position, at least part of the protective structure is arranged opposite to at least part of the roller brush, and at least part of the protective structure is shielded outside the roller brush; when the protective structure is in the open position, the protective structure avoids the roller brush. The solution provided by the utility model can solve the problem in the prior art that some objects to be swept are easily splashed to the outside of the vehicle during the sweeping process.

Description

Technical Field

[0001] The utility model relates to the technical field of road cleaning devices, in particular to a road cleaning vehicle. Background Art

[0002] At present, when cleaning highways, highway sweepers are often used to clean and collect garbage. Highway sweepers are often equipped with roller brushes, which throw garbage on the road onto a conveyor belt, and then transport the garbage to a vehicle-mounted garbage bin through the conveyor belt.

[0003] However, the high-speed road sweeper has an operating speed of over 60 km / h, and the rear roller brush rotates very fast. Although most of the garbage will be collected in the garbage bin, some of the garbage that is not cleaned in time will splash. The small garbage splashed on the outside of the vehicle is likely to rub against the moving vehicle and cause damage to the vehicle, which will require repair and compensation for the damaged vehicle, resulting in a significant increase in the operating cost of the equipment. Utility Model Content

[0004] The main purpose of the utility model is to provide a sweeper to solve the problem in the prior art that part of the objects to be swept are easily splashed to the outside of the vehicle during the sweeping process.

[0005] In order to achieve the above object, the utility model provides a sweeper, comprising:

[0006] Vehicle body;

[0007] A roller brush is rotatably arranged at the bottom of the vehicle body, and is used to clean the objects to be cleaned on the cleaning base;

[0008] A protective structure is adjustably arranged on the vehicle body, and the protective structure has a closed position and an open position; wherein, when the protective structure is in the closed position, at least part of the protective structure is arranged opposite to at least part of the roller brush, and at least part of the protective structure is blocked on the outside of the roller brush; when the protective structure is in the open position, the protective structure is arranged to avoid the roller brush.

[0009] Further, when the protective structure is in the closed position, at least part of the protective structure is spliced ​​with at least part of the vehicle body, so that at least part of the protective structure and the bottom of the vehicle body form a protective space surrounding the roller brush; and / or,

[0010] When the protective structure is in the open position, at least a portion of the protective structure is disposed at a preset angle with the side wall of the vehicle body, and the preset angle is between 30° and 120°.

[0011] Furthermore, the protective structure includes multiple protective parts, which are arranged along the circumference of the roller brush, and the multiple protective parts can be movably set on the vehicle body; when the protective structure is in a closed position, the multiple protective parts are spliced ​​in sequence so that the multiple protective parts and the vehicle body are spliced ​​to form a protective space surrounding the roller brush.

[0012] Furthermore, the protective structure also includes a limit member, which is movably arranged on the protective member, and has a limit position for abutting and limiting the adjacent protective member and an avoidance position for avoiding the adjacent protective member; when the protective structure is in the closed position, the limit member is in the limit position; when the protective structure is in the open position, the limit member is in the avoidance position.

[0013] Furthermore, the protective member is hinged to the vehicle body, and the protective structure further comprises a driving member, which is mounted on the vehicle body, and a driving end of the driving member is telescopically arranged, and the driving end of the driving member is drivingly connected to the protective member;

[0014] Among them, the driving part is a gas spring, which has an initial state and a compressed state; when the protective structure is in a closed position, the gas spring is in a compressed state and the limit part is in a limit position; when the limit part moves from the limit position to the avoidance position, the gas spring moves from the compressed state to the initial state, so that the protective structure moves to the open position.

[0015] Furthermore, the protective member includes a movable plate and a protective plate connected to each other, one end of the movable plate is movably connected to the vehicle body, the other end of the movable plate is fixedly connected to the protective plate, and the hardness of the protective plate is less than the hardness of the movable plate.

[0016] Furthermore, the roller brush is arranged at the rear of the vehicle body, the plurality of protective members include a first protective member, a second protective member and a third protective member, the first protective member and the second protective member are respectively arranged on opposite sides of the roller brush, and the third protective member is arranged at the rear of the roller brush.

[0017] Furthermore, the sweeper also includes:

[0018] a first auxiliary protection member, disposed between the first protection member and the rear wheel set of the sweeper, the first auxiliary protection member being used to cover the gap between the first protection member and the rear wheel set of the sweeper; and / or,

[0019] The second auxiliary protective member is arranged between the second protective member and the rear wheel group of the sweeper, and is used to cover the gap between the second protective member and the rear wheel group of the sweeper.

[0020] Furthermore, the sweeper also includes:

[0021] A protective cover is sleeved on the outer side of the roller brush, and the bottom of the protective cover is spaced apart from the bottom of the roller brush to form an opening;

[0022] The scraper is connected with the protective cover, and the scraper covers the opening.

[0023] Further, the scraper is a multi-layer plate structure; and / or,

[0024] The sweeper also includes a driving structure, which is installed on the vehicle body. The driving end of the driving structure is connected to the protective cover driving, and the driving end of the driving structure drives the protective cover to move so that the protective cover moves to a covering position on the roller brush or an avoiding position to avoid the roller brush.

[0025] By applying the technical solution of the utility model, when the protective structure is in the closed position, the protective structure can shield the splashed objects to be cleaned, thereby preventing the objects to be cleaned from splashing to the outside of the sweeper; when the protective structure is in the open state, the protective structure avoids the roller brush part, thereby facilitating the cleaning or maintenance of the roller brush or the vehicle body. Therefore, the technical solution of the application can solve the problem in the prior art that some of the objects to be cleaned are easily splashed to the outside of the vehicle during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 A schematic structural diagram of a cleaning vehicle provided according to an embodiment of the utility model when the protective structure is in a closed position is shown;

[0028] Figure 2 A schematic structural diagram of a cleaning vehicle provided according to an embodiment of the utility model when the protective structure is in an open position is shown;

[0029] Figure 3 A partial structural schematic diagram of a cleaning vehicle provided according to an embodiment of the utility model when the protective structure is in an open position is shown;

[0030] Figure 4 A schematic structural diagram of a roller brush and a protective cover of a sweeper provided according to an embodiment of the utility model is shown;

[0031] Figure 5 A schematic structural diagram of a roller brush and a protective cover of a sweeper provided in an embodiment of the utility model is shown at one viewing angle.

[0032] The above drawings include the following reference numerals:

[0033] 10. Vehicle body; 11. Connecting rod; 12. Rear wheel assembly;

[0034] 20. Roller brush;

[0035] 30. Protective structure; 31. Protective member; 311. Movable plate; 312. Protective plate; 313. First protective member; 314. Second protective member; 315. Third protective member; 32. Position limiting member; 321. Handle; 322. Clamping part; 33. Driving member;

[0036] 41. First auxiliary protective member;

[0037] 51. Protective cover; 511. Main cover body; 512. Soft rubber plate; 52. Scraper; 53. Driving structure; 54. Front guide plate;

[0038] 60. Sand curtain. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] like Figures 1 to 5 As shown, an embodiment of the utility model provides a sweeper, including a vehicle body 10, a roller brush 20 and a protective structure 30. The roller brush 20 is rotatably disposed at the bottom of the vehicle body 10, and is used to sweep the objects to be swept on the base to be swept. The protective structure 30 is adjustably disposed on the vehicle body 10, and the protective structure 30 has a closed position and an open position. When the protective structure 30 is in the closed position, at least a portion of the protective structure 30 is disposed opposite to at least a portion of the roller brush 20 and is shielded on the outside of the roller brush 20; when the protective structure 30 is in the open position, the protective structure 30 is disposed to avoid the roller brush 20.

[0041] With the sweeper provided by this embodiment, when the protective structure 30 is in the closed position, the protective structure 30 can shield the splashed objects to be cleaned, thereby preventing the objects to be cleaned from splashing to the outside of the sweeper; when the protective structure 30 is in the open state, the protective structure 30 avoids the roller brush 20, thereby facilitating the cleaning or maintenance of the roller brush 20 or the vehicle body 10. Thus, by providing a movable protective structure 30, it is possible to shield the splashed objects to be cleaned, and also to prevent it from interfering with the cleaning or maintenance of the roller brush 20 or the vehicle. Therefore, the sweeper provided by this embodiment can solve the problem in the prior art that some of the objects to be cleaned are easily splashed to the outside of the vehicle during the cleaning process.

[0042] Specifically, the base to be cleaned may be a highway pavement, and the objects to be cleaned may be various garbage, such as plastic bottles, gravel, and the like.

[0043] In this embodiment, when the protective structure 30 is in the closed position, at least part of the protective structure 30 is spliced ​​with at least part of the vehicle body 10, so that at least part of the protective structure 30 and the bottom of the vehicle body 10 form a protective space surrounding the roller brush 20. In this way, when the protective structure 30 is in the closed position, the protective structure 30 can shield the splashed objects to be cleaned and retain them in the protective space, thereby preventing the objects to be cleaned from splashing outside the vehicle. In addition, at least part of the objects to be cleaned retained in the protective space can be re-cleaned by the roller brush 20, thereby improving the cleaning efficiency of the cleaning vehicle.

[0044] When the protective structure 30 is in the open position, at least a portion of the protective structure 30 is set at a preset angle with the side wall of the vehicle body 10, and the preset angle is between 30° and 120°. In this way, when the protective structure 30 is in the open state, at least a portion of the protective structure 30 is set at such an angle with the side wall of the vehicle body 10, which can effectively prevent the protective structure 30 from interfering with the cleaning and maintenance of the roller brush 20 or the interior of the vehicle body 10, thereby improving the convenience of cleaning and maintenance of the sweeper.

[0045] Specifically, “the preset angle is between 30° and 120°” includes 30° and 120°.

[0046] In this embodiment, the protective structure 30 includes a plurality of protective members 31, which are arranged along the circumference of the roller brush 20, and the plurality of protective members 31 can be movably arranged on the vehicle body 10. When the protective structure 30 is in the closed position, the plurality of protective members 31 are spliced ​​in sequence, so that the plurality of protective members 31 and the vehicle body 10 are spliced ​​to form a protective space surrounding the roller brush 20. In this way, by configuring the protective structure 30 as a plurality of movable protective members 31, the position of the protective structure 30 can be adjusted by changing the positions of the plurality of protective members 31, thereby improving the convenience of adjusting the position of the protective structure 30.

[0047] In this embodiment, if Figure 3As shown, the protective structure 30 also includes a limiter 32, which is movably arranged on the protective member 31, and the limiter 32 has a limit position for abutting and limiting with the adjacent protective member 31 and a avoidance position for avoiding the adjacent protective member 31. When the protective structure 30 is in the closed position, the limiter 32 is in the limit position; when the protective structure 30 is in the open position, the limiter 32 is in the avoidance position. In this way, a limiter 32 is arranged on a protective member 31, and when the limiter 32 abuts against the adjacent protective member 31, the two protective members 31 can be locked, so that the protective structure 30 can be stably maintained in the closed position; and when the limiter 32 avoids the adjacent protective member 31, the protective structure 30 can be opened to be in the open position. Therefore, by setting the limiter 32, the position switching of the protective member 31 can be realized simply and quickly.

[0048] Specifically, the limiting member 32 may be a clamp structure, which includes a handle 321 and a clamping portion 322 that are connected to each other. The position of the clamping portion 322 is changed by the handle 321 to achieve switching of the position of the limiting member 32 .

[0049] In this embodiment, the protective member 31 is hinged to the vehicle body 10. Figure 3 , the protective structure 30 also includes a driving member 33, which is mounted on the vehicle body 10, and the driving end of the driving member 33 is telescopically arranged, and the driving end of the driving member 33 is drivingly connected to the protective member 31. Specifically, the driving member 33 is a gas spring, and the gas spring has an initial state and a compressed state. When the protective structure 30 is in the closed position, the gas spring is in a compressed state, and the limiter 32 is in the limited position; when the limiter 32 moves from the limited position to the avoidance position, the gas spring moves from the compressed state to the initial state, so that the protective structure 30 moves to the open position. In this way, when the limiter 32 is in the limited position, the protective structure 30 is in the closed position, at which time the protective member 31 compresses the gas spring to keep it in the compressed state; when the limiter 32 is switched from the closed position to the avoidance position, the constraint of the limiter 32 on the protective member 31 can be released, and at this time, the gas spring recovers from the compressed state to the initial state, thereby driving the protective member 31 to move, and the protective structure 30 is in the open position. Therefore, through the cooperation between the limiting member 32 and the driving member 33 , the automatic opening of the protective structure 30 is achieved, thereby further improving the convenience of position switching of the protective structure 30 .

[0050] Specifically, a connecting rod 11 is disposed in the vehicle body 10 , and one end of the driving member 33 is connected to the connecting rod 11 .

[0051] Specifically, there are a plurality of driving members 33 , and at least one driving member 33 is disposed on each protective member 31 .

[0052] In this embodiment, the protective member 31 includes a movable plate 311 and a protective plate 312 connected to each other, one end of the movable plate 311 is movably connected to the vehicle body 10, and the other end of the movable plate 311 is fixedly connected to the protective plate 312, and the hardness of the protective plate 312 is less than that of the movable plate 311. In this way, the movable plate 311 has a relatively large hardness, and its structure is more stable and difficult to deform, thereby ensuring the stable connection between the protective member 31 and the vehicle body 10; while the hardness of the protective plate 312 is relatively small, and it can buffer the splashed objects to be cleaned, thereby preventing the splashed objects to be cleaned from rebounding and hitting the vehicle body 10 and causing damage.

[0053] Specifically, the movable plate 311 can be made of steel or alloy material, and the protective plate 312 can be made of relatively soft rubber material.

[0054] Specifically, the limiting member 32 and the driving member 33 may both be disposed on the protective plate 312 .

[0055] refer to Figure 2 In this embodiment, the roller brush 20 is arranged at the rear of the vehicle body 10, and the plurality of protective members 31 include a first protective member 313, a second protective member 314 and a third protective member 315. The first protective member 313 and the second protective member 314 are arranged at opposite sides of the roller brush 20, respectively, and the third protective member 315 is arranged at the rear of the roller brush 20. In this way, the first protective member 313 and the second protective member 314 can shield the objects to be cleaned splashed to the sides of the roller brush 20, and the third protective member 315 can shield the objects to be cleaned splashed to the rear of the roller brush 20. As for the objects to be cleaned splashed to the front of the roller brush 20, the roller brush 20 can also clean them again as the vehicle body 10 moves. Therefore, by adopting such a setting, the splashed objects to be cleaned can be effectively retained in the protective space.

[0056] Specifically, there are two limit members 32 , the fixed ends of the two limit members 32 are fixed on both sides of the third protective member 315 , and the movable ends of the two limit members 32 are used to lock the first protective member 313 and the second protective member 314 , respectively.

[0057] The stopper 32 is fixed to the third protective member 315 by bolts. When the first protective member 313, the second protective member 314 and the third protective member 315 are turned up, the stopper 32 needs to be opened, and the first protective member 313, the second protective member 314 and the third protective member 315 can be automatically turned up under the push of the gas spring. When the sweeper is driving or working, the first protective member 313, the second protective member 314 and the third protective member 315 need to be locked together by the stopper 32. Specifically, Figures 2 to 3As shown, when the first protection member 313 and the second protection member 314 are turned up, the two gas springs are opened to play a supporting role. When the third protection member 315 is turned up, the four gas springs are opened to support the rear skirt.

[0058] In the present embodiment, the sweeper further includes a first auxiliary protective member 41 and a second auxiliary protective member 31. The first auxiliary protective member 41 is disposed between the first protective member 313 and the rear wheel group 12 of the sweeper, and the first auxiliary protective member 41 is used to cover the gap between the first protective member 313 and the rear wheel group 12 of the sweeper. The second auxiliary protective member 31 is disposed between the second protective member 314 and the rear wheel group 12 of the sweeper, and the second auxiliary protective member 31 is used to cover the gap between the second protective member 314 and the rear wheel group 12 of the sweeper. In this way, by providing the first auxiliary protective member 41 and the second auxiliary protective member 31, the objects to be cleaned that splash to the front side of the roller brush 20 can be shielded, thereby preventing part of the objects to be cleaned from splashing from the front side of the roller brush 20 to the outside of the vehicle body 10 and causing damage to the vehicles traveling with it. Therefore, by adopting such a setting, the anti-splashing effect of the sweeper can be further improved.

[0059] In this embodiment, if Figure 4 As shown, the sweeper further includes a protective cover 51, which is sleeved on the outer side of the roller brush 20, and the bottom of the protective cover 51 is spaced apart from the bottom of the roller brush 20 to form an opening. In this way, by providing the protective cover 51, the splashing objects to be cleaned can be initially shielded, and the protective cover 51 and the protective structure 30 shield the splashing objects to be cleaned for multiple times, thereby improving the anti-splashing effect of the sweeper.

[0060] In this embodiment, if Figure 4 As shown, the sweeper further includes a scraper 52 connected to the protective cover 51, and the scraper 52 covers the opening. In this way, the scraper 52 can block part of the objects to be cleaned that splash to the rear of the vehicle body 10, and make them stay between the protective cover 51 and the roller brush 20, so that the roller brush 20 can clean the part of the objects to be cleaned again, thereby further improving the anti-splashing effect of the sweeper.

[0061] Specifically, the scraper 52 is made of hard rubber.

[0062] In this embodiment, the scraper 52 is a multi-layer plate structure. Specifically, the scraper 52 can be a multi-layer hard rubber plate structure.

[0063] Specifically, one end of the multilayer plate body away from the base to be cleaned is fixedly connected to the protective cover 51. When the sweeper is driving, the end of the multilayer plate body close to the base to be cleaned will swing and form a gap, thereby forming a cleaning effect on the object to be cleaned that is blocked by the scraper 52, effectively ensuring that this part of the object to be cleaned can return to the position of the roller brush 20 in time.

[0064] In this embodiment, the protective cover 51 includes a main cover body 511 and a soft rubber plate 512. The main cover body 511 is made of aluminum alloy material. The soft rubber plate 512 is detachably mounted on the main cover body. The bottom of the soft rubber plate 512 is spaced apart from the bottom of the roller brush 20 to form an opening. The soft rubber plate 512 can also effectively prevent splashing. When replacing the roller brush 20, the soft rubber plate 512 can be removed first.

[0065] Specifically, after a plurality of layers of scraper plates 52 made of a harder rubber material are arranged at the lower part behind the roller brush 20, once the objects to be cleaned fall onto the ground behind the roller brush 20, the scraper plates 52 can change the movement direction of the garbage. As the vehicle body 10 moves forward, the scraper plates 52 can scrape the garbage to the bottom of the roller brush 20 for secondary cleaning, thereby further improving the garbage cleaning rate.

[0066] In this embodiment, if Figure 4 As shown, the sweeper also includes a driving structure 53, which is mounted on the vehicle body 10. The driving end of the driving structure 53 is drivingly connected to the protective cover 51, and the driving end of the driving structure 53 drives the protective cover 51 to move, so that the protective cover 51 moves to a covering position on the roller brush 20 or a avoiding position to avoid the roller brush 20. In this way, the driving structure 53 can drive the protective cover 51 to move between the covering position and the avoiding position, so that the protective cover 51 can be used to shield the splashing objects to be cleaned, and the protective cover 51 can be prevented from interfering with the cleaning and maintenance of the roller brush 20.

[0067] Specifically, the sweeper also includes a conveyor belt and a garbage bin, and the roller brush 20 rotates to throw the garbage onto the conveyor belt and then transport it into the garbage bin. The sweeper also includes a front guide plate 54, and two front guide plates 54 are symmetrically installed at the front of both sides of the protective cover 51, which can guide the garbage to be concentrated within the width of the conveyor belt. The sweeper also includes a sand curtain 60, which is composed of bristles and can play a role in unloading and reduce garbage splashing from the front.

[0068] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: by setting a movable protective structure 30, it can not only block the splashing objects to be cleaned, but also avoid interference when cleaning or repairing the roller brush 20 or the vehicle.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0071] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0072] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0073] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0074] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sweeper, characterized in that: include: Vehicle body (10); A roller brush (20) is rotatably arranged at the bottom of the vehicle body (10), and the roller brush (20) is used to clean the objects to be cleaned on the base to be cleaned; A protective structure (30) is adjustably arranged on the vehicle body (10), and the protective structure (30) has a closed position and an open position; wherein, when the protective structure (30) is in the closed position, at least a portion of the protective structure (30) is arranged opposite to at least a portion of the roller brush (20), and at least a portion of the protective structure (30) is shielded on the outside of the roller brush (20); when the protective structure (30) is in the open position, the protective structure (30) is arranged to avoid the roller brush (20).

2. The cleaning vehicle according to claim 1, characterized in that: When the protective structure (30) is in the closed position, at least part of the protective structure (30) is spliced ​​with at least part of the vehicle body (10), so that at least part of the protective structure (30) and the bottom of the vehicle body (10) form a protective space surrounding the roller brush (20); and / or, When the protective structure (30) is in the open position, at least a portion of the protective structure (30) is disposed at a preset angle with the side wall of the vehicle body (10), and the preset angle is between 30° and 120°.

3. The cleaning vehicle according to claim 1, characterized in that: The protective structure (30) comprises a plurality of protective members (31), the plurality of protective members (31) being arranged along the circumference of the roller brush (20), and the plurality of protective members (31) being movably arranged on the vehicle body (10); when the protective structure (30) is in the closed position, the plurality of protective members (31) are spliced ​​in sequence, so that the plurality of protective members (31) and the vehicle body (10) are spliced ​​to form a protective space surrounding the roller brush (20).

4. The cleaning vehicle according to claim 3, characterized in that: The protective structure (30) further comprises a limiting member (32), wherein the limiting member (32) is movably arranged on the protective member (31), and the limiting member (32) has a limiting position for abutting and limiting with an adjacent protective member (31) and an avoiding position for avoiding the adjacent protective member (31); when the protective structure (30) is in the closed position, the limiting member (32) is in the limiting position; when the protective structure (30) is in the open position, the limiting member (32) is in the avoiding position.

5. The cleaning vehicle according to claim 4, characterized in that: The protective member (31) is hinged to the vehicle body (10), and the protective structure (30) further comprises a driving member (33), the driving member (33) is mounted on the vehicle body (10), a driving end of the driving member (33) is telescopically arranged, and the driving end of the driving member (33) is drivingly connected to the protective member (31); Wherein, the driving member (33) is a gas spring, and the gas spring has an initial state and a compressed state; when the protective structure (30) is in the closed position, the gas spring is in the compressed state, and the limiting member (32) is in the limiting position; when the limiting member (32) moves from the limiting position to the avoidance position, the gas spring moves from the compressed state to the initial state, so that the protective structure (30) moves to the open position.

6. The cleaning vehicle according to claim 3, characterized in that: The protective member (31) comprises a movable plate (311) and a protective plate (312) which are connected to each other, one end of the movable plate (311) is movably connected to the vehicle body (10), the other end of the movable plate (311) is fixedly connected to the protective plate (312), and the hardness of the protective plate (312) is less than the hardness of the movable plate (311).

7. The cleaning vehicle according to claim 3, characterized in that: The roller brush (20) is arranged at the rear of the vehicle body (10); the plurality of protective members (31) include a first protective member (313), a second protective member (314) and a third protective member (315); the first protective member (313) and the second protective member (314) are respectively arranged on opposite sides of the roller brush (20); and the third protective member (315) is arranged at the rear of the roller brush (20).

8. The cleaning vehicle according to claim 7, characterized in that: The sweeper also includes: a first auxiliary protective member (41), arranged between the first protective member (313) and the rear wheel group (12) of the cleaning vehicle, the first auxiliary protective member (41) being used to cover the gap between the first protective member (313) and the rear wheel group (12) of the cleaning vehicle; and / or, The second auxiliary protective member is arranged between the second protective member (314) and the rear wheel group (12) of the sweeper, and the second auxiliary protective member is used to cover the gap between the second protective member (314) and the rear wheel group (12) of the sweeper.

9. The cleaning vehicle according to any one of claims 1 to 8, characterized in that: The sweeper also includes: A protective cover (51), wherein the protective cover (51) is sleeved on the outer side of the roller brush (20), and the bottom of the protective cover (51) is spaced apart from the bottom of the roller brush (20) to form an opening; A scraper (52) is connected to the protective cover (51), and the scraper (52) covers the opening.

10. The cleaning vehicle according to claim 9, characterized in that: The scraper (52) is a multi-layer plate structure; and / or, The cleaning vehicle further comprises a driving structure (53), wherein the driving structure (53) is mounted on the vehicle body (10), wherein a driving end of the driving structure (53) is drivingly connected to the protective cover (51), and the driving end of the driving structure (53) drives the protective cover (51) to move, so that the protective cover (51) moves to a covering position covering the roller brush (20) or to a avoiding position avoiding the roller brush (20).

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