Road edge stone cleaning device and urban road cleaning vehicle

Abstract

The invention belongs to the technical field of road cleaning equipment, and provides a road traffic stone cleaning device and an urban road cleaning vehicle, the road traffic stone cleaning device comprises a mounting base and a cleaning assembly, the cleaning assembly comprises two cleaning units, and each cleaning unit comprises a first mounting frame, a second mounting frame and a third mounting frame; the second mounting frame is located on the first side of the first mounting frame, the first end of the second mounting frame is hinged to the mounting base, and the second mounting frame can move along with the first mounting frame; the first cleaning rollers are arranged on the side, away from the first mounting frame, of the second mounting frame, the multiple first cleaning rollers are arranged, and the multiple first cleaning rollers are sequentially arranged in the length direction of the second mounting frame at intervals; the first driving mechanism is arranged on the mounting seat; the second driving mechanism is arranged on the mounting seat; and the spray head is communicated with the cleaning liquid supply system. According to the road edge stone cleaning device and the urban road cleaning vehicle, the cleaning width of the cleaning unit can be adjusted, and the universality is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of road cleaning equipment, and in particular to a curbstone cleaning device and an urban road cleaning vehicle. Background Art

[0002] Urban roads are often lined with curbstones. To enhance the city's image, these curbstones need to be cleaned. Traditionally, cleaning is done manually, which is dangerous and expensive. With the advancement of technology, curbstone cleaning equipment has emerged.

[0003] For example, the Chinese invention patent with authorization publication number CN111622161B provides a curbstone cleaning device. Although it can automatically clean curbstones, the length of its horizontal and vertical brush rollers cannot be adjusted, resulting in it only cleaning curbstones that are suitable for it. When cleaning tall curbstones, the shorter brush rollers prevent the brush rollers from fully covering the curbstone's sidewalls, resulting in incomplete cleaning. When cleaning shorter curbstones, the longer brush rollers prevent the horizontal brush rollers from moving to the optimal cleaning position when the bottom end of the vertical brush roller touches the ground, resulting in poor cleaning results. Summary of the Invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a curbstone cleaning device and an urban road cleaning vehicle to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0005] In order to achieve the above-mentioned object, on the one hand, the present invention provides a curbstone cleaning device, comprising a mounting base and a cleaning assembly disposed on the mounting base, wherein the cleaning assembly comprises two cleaning units, characterized in that the cleaning units comprise:

[0006] a first mounting bracket, a first end of which is hinged to the mounting base so that a second end of the first mounting bracket can swing back and forth between a first position and a second position about a hinge centerline thereof;

[0007] a second mounting bracket, located on a first side of the first mounting bracket, wherein a first end of the second mounting bracket is hinged to the mounting base and a second end thereof is freely extended, and the second mounting bracket is capable of moving with the first mounting bracket;

[0008] a first cleaning roller, which is arranged on a side of the second mounting frame away from the first mounting frame, wherein a plurality of first cleaning rollers are provided, and the plurality of first cleaning rollers are sequentially spaced along the length direction of the second mounting frame;

[0009] a first driving mechanism, which is disposed on the mounting seat, and is used to drive the first mounting bracket to move from the first position to the second position or from the second position to the first position;

[0010] a second driving mechanism, which is disposed on the mounting seat and is used to drive the first cleaning roller to rotate; and

[0011] a spray head, which is in communication with the cleaning fluid supply system, and is used to spray cleaning fluid onto a target sidewall of the curbstone;

[0012] When the first mounting frame is in the first position, all the first cleaning rollers remain flush; when the first mounting frame is in the second position, all the first cleaning rollers are staggered, and the opposite ends of any two adjacent first cleaning rollers are aligned or overlapped.

[0013] Furthermore, the cleaning unit also includes a direction maintaining mechanism, which is connected to the first mounting frame and the second mounting frame. The direction maintaining mechanism is used to enable the second mounting frame to move synchronously with the first mounting frame, and maintain the axial direction of the first cleaning roller during the movement of the first mounting frame, so that the axial direction of the first cleaning roller is always along a preset direction.

[0014] Furthermore, the direction maintaining mechanism includes a maintaining structure corresponding to the first cleaning roller on a one-to-one basis, and the maintaining structure includes:

[0015] a first retaining frame hingedly connected to the first mounting frame;

[0016] a second holding frame, which is hinged to the second mounting frame, and the first end of the first cleaning roller is rotatably connected to the second holding frame;

[0017] a retaining member, a first end of which is connected to the first retaining frame and a second end of which is connected to the second retaining frame, so that the distance between the first retaining frame and the second retaining frame cannot be changed;

[0018] Among them, the articulation center line of the first mounting frame and the mounting seat is set as the first articulation center line, the intersection center line of the second mounting frame and the mounting seat is set as the second articulation center line, the articulation center line of the first maintaining frame and the first mounting frame is set as the third articulation center line, and the articulation center line of the second maintaining frame and the second mounting frame is set as the fourth articulation center line. The first intersection center line, the second articulation center line, the third articulation center line and the fourth articulation center line are parallel to each other, and the distance between the third articulation center line and the fourth articulation center line is equal to the distance between the first articulation center line and the second articulation center line.

[0019] Furthermore, the second driving mechanism includes:

[0020] a first drive shaft, corresponding one-to-one with the first retaining frame, the first drive shaft being rotatably connected to the second retaining frame, the rotation centerline of the first drive shaft coinciding with the fourth hinge centerline, and any two adjacent first drive shafts being in driving connection;

[0021] a first bevel gear, which corresponds one-to-one to the first drive shaft, and the first bevel gear is coaxially sleeved on the corresponding first drive shaft;

[0022] a second bevel gear, which corresponds to the first bevel gear on a one-to-one basis, the second bevel gear being coaxially sleeved on the corresponding power input shaft of the first cleaning roller, and the second bevel gear being meshed with the corresponding first bevel gear; and

[0023] The drive motor is fixedly arranged on the mounting seat, and the power output shaft of the drive motor is transmission-connected to any one of the first drive shafts.

[0024] Furthermore, the cleaning unit further comprises:

[0025] a third mounting bracket, which is fixedly connected to the mounting base, and the second mounting bracket is hinged to the third mounting bracket; and

[0026] A second cleaning roller having a radius equal to that of the first cleaning roller and a length not exceeding that of the first cleaning roller. A first end of the second cleaning roller is rotatably connected to the third mounting bracket, and a second end of the second cleaning roller extends away from the first mounting bracket;

[0027] When the first mounting bracket is in the first position, the second cleaning roller is flush with the first cleaning roller, and when the first mounting bracket is in the second position, the second cleaning roller and the opposite side of the first cleaning roller adjacent to it are flush or overlapped, so that there is no cleaning blind spot between the second cleaning roller and the first cleaning roller.

[0028] Furthermore, the second driving mechanism further includes:

[0029] a second drive shaft, rotatably connected to the third mounting bracket, wherein a rotation centerline of the second drive shaft coincides with an articulation centerline of the second mounting bracket and the third mounting bracket, and the second drive shaft is drivingly connected to one of the first drive shafts;

[0030] a fifth bevel gear coaxially sleeved on the second drive shaft; and

[0031] a sixth bevel gear, coaxially sleeved on the power input shaft of the second cleaning roller, the sixth bevel gear meshing with the fifth bevel gear;

[0032] Wherein, the power output shaft of the drive motor is transmission-connected to the second drive shaft.

[0033] Furthermore, the second retaining frame includes a rectangular frame and hinge shafts arranged at both ends of the frame, the hinge shafts are rotatably connected to the second mounting frame, the first bevel gear and the second bevel gear are both arranged in the frame, and the second end of the retaining frame is connected to the frame.

[0034] On the other hand, the present invention also provides an urban road cleaning vehicle, comprising any one of the above-mentioned curbstone cleaning devices.

[0035] Beneficial effects of the present invention:

[0036] The curbstone cleaning device and urban road cleaning vehicle provided by the present invention, when in operation, drive the first mounting frame to swing through the first driving mechanism, thereby adjusting the cleaning width of the cleaning unit so that the cleaning width adapts to the width of the corresponding side wall of the curbstone, thereby achieving the purpose of being able to clean curbstones of various widths, and further achieving the purpose of improving its versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0038] Figure 1 A three-dimensional view of a curbstone cleaning device provided by one embodiment of the present invention;

[0039] Figure 2 for Figure 1 Another three-dimensional top view of the curbstone cleaning device is shown;

[0040] Figure 3 for Figure 1 A three-dimensional view of a cleaning unit of a curbstone cleaning device shown in a first direction;

[0041] Figure 4 for Figure 3 An enlarged view of section A is shown;

[0042] Figure 5 for Figure 3 A perspective view of the cleaning unit shown in a second direction;

[0043] Figure 6 for Figure 5 An enlarged view of portion B is shown;

[0044] Figure 7 for Figure 5 An enlarged view of section C is shown;

[0045] Figure 8 for Figure 3 A cross-sectional view of the cleaning unit shown;

[0046] Figure 9 for Figure 1 A perspective view of the curb cleaning device shown when cleaning a wider curb;

[0047] Figure 10 for Figure 1 A perspective view of the curbstone cleaning device shown is shown when cleaning a narrow curbstone.

[0048] Reference numerals:

[0049] 100. Mounting base; 210. First mounting frame; 220. Second mounting frame; 230. First cleaning roller; 240. Telescopic device; 251. First drive shaft; 252. First bevel gear; 253. Second bevel gear; 254. Drive motor; 255. Second drive shaft; 256. Fifth bevel gear; 257. Sixth bevel gear; 258. Third bevel gear; 259. Fourth bevel gear; 203. Synchronous wheel; 204. Synchronous belt; 261. First maintaining frame; 262. Second maintaining frame; 201. Frame; 202. Articulated shaft; 263. Maintaining member; 270. Spray nozzle; 280. Third mounting frame; 290. Second cleaning roller; 300. Curbstone. DETAILED DESCRIPTION

[0050] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0051] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0054] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0055] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] like Figure 1-10 As shown, the present invention provides a curb cleaning device, including a mounting base 100 and a cleaning assembly arranged on the mounting base 100 .

[0057] The cleaning assembly is mounted on the mounting base 100 , and includes two cleaning units, one of which is used to clean the lateral sidewalls of the curbstone 300 , and the other is used to clean the longitudinal sidewalls of the curbstone 300 .

[0058] During operation, the curbstone 300 cleaning device is installed on the cleaning vehicle, and the cleaning device is started. As the cleaning vehicle travels, the purpose of cleaning the curbstone 300 is achieved. These are all existing technologies and will not be described in detail here.

[0059] However, the inventors discovered that in conventional curbstone cleaning devices, the length of the first cleaning roller 230 is fixed, and the relative positions of the first cleaning roller 230 for cleaning the lateral sidewalls of the curbstone 300 and the first cleaning roller 230 for cleaning the longitudinal sidewalls of the curbstone 300 are fixed, resulting in the device only being able to clean the curbstone 300 to which it is adapted. When cleaning taller curbstones 300, the shorter brush rollers prevent the brush rollers from fully covering the sidewalls of the curbstone 300, resulting in incomplete cleaning. When cleaning shorter curbstones 300, the longer brush rollers prevent the lateral brush rollers from moving to the optimal cleaning position when the bottom ends of the vertical brush rollers touch the ground, resulting in poor cleaning results. Based on this, the inventors provide a curbstone cleaning device, the cleaning unit of which includes a first mounting frame 210, a second mounting frame 220, a first cleaning roller 230, a first drive mechanism, a second drive mechanism, and a nozzle 270.

[0060] The first end of the first mounting frame 210 is hinged to the mounting base 100 so that the second end of the first mounting frame 210 can swing back and forth between the first position and the second position around its own hinge center line. When the first mounting frame 210 is in the first position, the length direction of the first mounting frame 210 is consistent with the cleaning direction (i.e., the movement direction of the cleaning vehicle); when the first mounting frame 210 is in the second position, the length direction of the first mounting frame 210 forms an angle α with the cleaning direction, wherein 60°≥α≥30°. Specifically, in this embodiment, the first mounting frame 210 includes two first plates arranged at intervals to improve the stability and reliability of the swinging of the first mounting frame 210.

[0061] The second mounting frame 220 is located on a first side of the first mounting frame 210, and the length direction of the second mounting frame 220 is consistent with the length direction of the first mounting frame 210. The first end of the second mounting frame 220 is hinged to the mounting base 100, and the second end is freely extended. The hinge centerline of the first mounting frame 210 and the mounting base 100 is defined as the first hinge centerline, and the intersection centerline of the second mounting frame 220 and the mounting base 100 is defined as the second hinge centerline, wherein the first hinge centerline is parallel to the second hinge centerline. The second mounting frame 220 is in transmission connection with the first mounting frame 210 so that the second mounting frame 220 can move synchronously with the first mounting frame 210. Specifically, in this embodiment, the second mounting frame 220 includes two second plates arranged at intervals to improve the stability and reliability of the swinging of the first mounting frame 210.

[0062] The first cleaning roller 230 is disposed on a side of the second mounting frame 220 away from the first mounting frame 210. A plurality of first cleaning rollers 230 are provided, and the plurality of first cleaning rollers 230 are sequentially spaced along the length of the second mounting frame 220. A first end of the first cleaning roller 230 is connected to the second mounting frame 220 so that the first cleaning roller 230 can move with the second mounting frame 220. A second end of the first cleaning roller 230 extends in a direction away from the first mounting frame 210.

[0063] Among them, when the first mounting frame 210 is in the first position, all the first cleaning rollers 230 remain flush, that is, the projections of all the first cleaning rollers 230 along the cleaning direction coincide; when the first mounting frame 210 is in the second position, all the first cleaning rollers 230 are staggered, that is, the projections of all the first cleaning rollers 230 along the cleaning direction do not coincide, and when the first mounting frame 210 is in the second position, the opposite ends of any two adjacent first cleaning rollers 230 are aligned or overlapped, so that there is no cleaning blind spot between any two adjacent first cleaning rollers 230.

[0064] During operation, when the first mounting frame 210 moves from the first position to the second position, the multiple first cleaning rollers 230 gradually change from being aligned to being offset, and the offset distance gradually increases, thereby gradually increasing the cleaning width of the cleaning unit; and when the first mounting frame 210 swings from the second position to the first position, the multiple first cleaning rollers 230 gradually change from being offset to being aligned, and the offset distance gradually decreases, thereby gradually decreasing the cleaning width of the cleaning unit.

[0065] The first driving mechanism is arranged on the mounting base 100, and the first driving mechanism is transmission-connected to the first mounting frame 210. The first driving mechanism is used to drive the first mounting frame 210 to move from the first position to the second position or from the second position to the first position, and can maintain the first mounting frame 210 at any position between the first position and the second position.

[0066] Specifically, in this embodiment, the first driving mechanism includes a telescopic device 240, a first end of which is hinged to the mounting base 100 and a second end of which is hinged to the first mounting bracket 210. The telescopic device 240 can be a pneumatic cylinder, a hydraulic cylinder, an electric push rod, or an electro-hydraulic push rod.

[0067] The second driving mechanism is disposed on the mounting base 100 , and is in transmission connection with the first cleaning roller 230 . The second driving mechanism is used to drive the first cleaning roller 230 to rotate, so as to achieve the purpose of cleaning the curbstone 300 .

[0068] The nozzle 270 is connected to the cleaning fluid supply system and is used to spray cleaning fluid onto the target sidewall of the curbstone 300. Specifically, in this embodiment, the nozzle 270 is fixedly mounted on the second mounting bracket 220 so that the nozzle 270 can swing along with the second mounting bracket 220, thereby achieving the purpose of improving the water spraying effect.

[0069] During operation, the first mounting frame 210 is driven by the first driving mechanism to move from the first position to the second position or from the second position to the first position to change the cleaning width of the cleaning unit so that its cleaning width is adapted to the target side wall of the curbstone 300 to be cleaned, thereby achieving the purpose of improving its versatility.

[0070] Specifically, when the side wall of the curbstone 300 is wider, the first driving mechanism drives the first mounting frame 210 to move from the first position to the second position; when the side wall of the curbstone 300 is narrower, the first driving mechanism drives the first mounting frame 210 to move from the second position to the first position.

[0071] When the cleaning width of the cleaning unit is adjusted to be compatible with the target side wall of the curbstone 300 to be cleaned, the first driving mechanism stops driving the first mounting bracket 210 to move, thereby maintaining the first mounting bracket 210 at the target position.

[0072] Afterwards, the second driving mechanism drives the first cleaning roller 230 to rotate, and at the same time, the cleaning liquid supply system is turned on to enable the nozzle 270 to spray cleaning liquid onto the target side wall of the curbstone 300. As the cleaning vehicle travels, the side wall of the curbstone 300 is cleaned.

[0073] The cleaning unit drives the first mounting frame 210 to move from the first position to the second position or from the second position to the first position through the first driving mechanism, so that the multiple first cleaning rollers 230 switch between alignment and misalignment to achieve the purpose of adjusting the cleaning width of the cleaning unit, so that it can clean curbstones 300 of various widths and heights, with better versatility.

[0074] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8As shown, in this embodiment, the cleaning unit further includes a direction maintaining mechanism, which is connected to the first mounting frame 210 and the second mounting frame 220. The direction maintaining mechanism is used to enable the second mounting frame 220 to move synchronously with the first mounting frame 210, and to maintain the axis direction of the first cleaning roller 230 during the movement of the first mounting frame 210, so that the axis direction of the first cleaning roller 230 is always along a preset direction. Specifically, when the first cleaning roller 230 is used to clean the lateral sidewalls of the curbstone 300, the preset direction is the width direction of the lateral sidewalls of the curbstone 300; when the first cleaning roller 230 is used to clean the longitudinal sidewalls of the curbstone 300, the preset direction is the width direction (i.e., the longitudinal direction) of the longitudinal sidewalls of the curbstone 300.

[0075] During operation, during the swinging of the first mounting frame 210, under the action of the direction maintaining mechanism, the second mounting frame 220 swings together with the first mounting frame 210, and during the swinging of the second mounting frame 220, the axis of the first cleaning roller 230 always remains along the preset direction. This can not only expand the cleaning range of the cleaning unit when the length of a single first cleaning roller 230 is constant, but also ensure that the rotation direction of the first cleaning roller 230 is always consistent with the driving direction of the cleaning vehicle, thereby reducing resistance and reducing wear on the first cleaning roller 230.

[0076] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 As shown, in this embodiment, the direction maintaining mechanism includes a maintaining structure corresponding to the first cleaning roller 230 one by one, and the maintaining structure includes a first maintaining frame 261 , a second maintaining frame 262 and a maintaining member 263 .

[0077] The first retaining frame 261 is hinged to the first mounting frame 210. The second retaining frame 262 is hinged to the second mounting frame 220, and the first end of the first cleaning roller 230 is rotatably connected to the second retaining frame 262. The hinge centerline between the first retaining frame 261 and the first mounting frame 210 is defined as the third hinge centerline, and the hinge centerline between the second retaining frame 262 and the second mounting frame 220 is defined as the fourth hinge centerline. The third hinge centerline and the fourth hinge centerline are both parallel to the first hinge centerline, and the distance between the third hinge centerline and the fourth hinge centerline is equal to the distance between the first hinge centerline and the second hinge centerline. That is, the line connecting the projections of the first hinge centerline, the second hinge centerline, the third hinge centerline, and the fourth hinge centerline on a plane perpendicular to the projections forms a parallelogram.

[0078] The first end of the retaining member 263 is connected to the first retaining frame 261, and the second end is connected to the second retaining frame 262, so that the distance between the first retaining frame 261 and the second retaining frame 262 cannot be changed. In this embodiment, the first end of the retaining frame is fixedly connected to the first retaining frame 261, and the second end is fixedly connected to the second retaining frame 262.

[0079] Specifically, the retaining member 263 may be plate-shaped or rod-shaped, and no further limitation is given herein. In this embodiment, the retaining member 263 is rod-shaped.

[0080] During operation, the first driving mechanism drives the first mounting frame 210 to swing, and the first mounting frame 210 transmits power to the maintaining member 263 through the first maintaining frame 261, and the maintaining member 263 transmits power to the second maintaining frame 262, and the second maintaining frame 262 transmits power to the second mounting frame 220, thereby achieving the purpose of driving the second maintaining frame 262 to swing synchronously.

[0081] During this process, since the positions of the first hinge center line and the second hinge center line are fixed, the direction of the structure remains unchanged during the swinging of the first mounting frame 210 and the second mounting frame 220, so that the axis of the first cleaning roller 230 always remains in the preset direction.

[0082] This direction maintaining mechanism utilizes the principle that when the direction of one side of a parallelogram is fixed, the direction of the corresponding side is also fixed. During the swinging process of the first mounting frame 210, since the positions of the first hinge centerline and the second hinge centerline are fixed, the orientation of the corresponding maintaining structure is always fixed, thereby achieving the purpose of maintaining the axis of the first cleaning roller 230 at all times in the preset direction. No additional adjustment structure is required to adjust the orientation of the first cleaning roller 230, so that the axis of the first cleaning roller 230 is always maintained in the preset direction, resulting in a simple structure.

[0083] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown, in this embodiment, the second driving mechanism includes a first driving shaft 251 , a first bevel gear 252 , a second bevel gear 253 and a driving motor 254 .

[0084] The first drive shaft 251 corresponds to the first retaining frame 261 in a one-to-one relationship. The first drive shaft 251 is rotationally connected to the second retaining frame 262, and the rotation centerline of the first drive shaft 251 coincides with the fourth hinge centerline. Any two adjacent first drive shafts 251 are in transmission connection. In this embodiment, any two adjacent first drive shafts 251 are transmission-connected via a synchronous belt structure. Specifically, a synchronous pulley 203 is mounted on the first end of each first drive shaft 251, and any two adjacent synchronous pulleys 203 are transmission-connected via a synchronous belt 204.

[0085] In other embodiments, any two adjacent first drive shafts 251 may also be connected through a transmission chain structure, a transmission belt structure, and a gear set structure, which will not be elaborated herein.

[0086] The first bevel gears 252 correspond one-to-one with the first drive shafts 251 and are coaxially sleeved on the corresponding first drive shafts 251. The second bevel gears 253 correspond one-to-one with the first bevel gears 252 and are coaxially sleeved on the power input shafts of the corresponding first cleaning rollers 230, and the second bevel gears 253 mesh with the corresponding first bevel gears 252. The drive motor 254 is fixedly mounted on the mounting base 100, and the power output shaft of the drive motor 254 is drivingly connected to any one of the first drive shafts 251.

[0087] During operation, the drive motor 254 drives one of the first drive shafts 251 to rotate. The synchronous belt structure transmits power to all of the first drive shafts 251, driving all of the first drive shafts 251 to rotate synchronously. The first drive shaft 251 drives the corresponding second bevel gear 253 via the corresponding first bevel gear 252, and the second bevel gear 253 drives the corresponding first cleaning roller 230 to rotate synchronously.

[0088] The second drive mechanism utilizes the principle that the side length of a parallelogram remains unchanged during deformation, so that the rotation center line of the first drive shaft 251 coincides with the fourth hinge center line, so that during the swinging of the first mounting frame 210, the distance between any two adjacent first drive shafts 251 will never change, and the relative position of the first drive shaft 251 and the second mounting frame 220 will not change. There is no need to set up an additional tensioning mechanism to tension the synchronous belt 204, and the structure is simple and compact.

[0089] During the course of practice, the inventors discovered that although the cleaning width of the above-mentioned cleaning unit is changed during the process of adjusting the cleaning width, the first cleaning roller 230 will change its position as the second mounting frame 220 swings, thereby causing the relative positions of the two cleaning units to change. As a result, when one of the cleaning units is aligned with the side wall corresponding to the curb 300, the other cleaning unit cannot be aligned with the side wall corresponding to the curb 300. Therefore, a complex structure is required to adjust the position of the cleaning unit so that the two cleaning units can be aligned with the side walls of their respective curbs 300 at the same time. Based on this, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 9 、 Figure 10 As shown, in this embodiment, in addition to the above structure, the cleaning unit further includes a third mounting frame 280 and a second cleaning roller 290 .

[0090] The third mounting frame 280 is fixedly connected to the mounting base 100. The second mounting frame 220 is hingedly connected to the third mounting frame 280. The radius of the second cleaning roller 290 is equal to that of the first cleaning roller 230, and the length of the second cleaning roller 290 does not exceed the length of the first cleaning roller 230. In this embodiment, the length of the second cleaning roller 290 is equal to the length of the first cleaning roller 230. The first end of the second cleaning roller 290 is rotatably connected to the third mounting frame 280, and the second end extends away from the first mounting frame 210. When the first mounting frame 210 is in the first position, the second cleaning roller 290 is flush with the first cleaning roller 230. When the first mounting frame 210 is in the second position, the second cleaning roller 290 and the opposite side of the adjacent first cleaning roller 230 are flush or overlapped, so that no cleaning blind spot appears between the second cleaning roller 290 and the first cleaning roller 230.

[0091] During operation, when the first mounting frame 210 and the second mounting frame 220 swing, the second cleaning roller 290 will not swing with the first mounting frame 210 and the second mounting frame 220, so that the initial cleaning position of the cleaning unit remains unchanged during the process of adjusting the cleaning width of the cleaning unit.

[0092] By setting a second cleaning roller 290, the cleaning unit overcomes the problem of the cleaning position of the first cleaning roller 230 changing as the first mounting frame 210 swings. There is no need to set up a complex structure to adjust the position of the cleaning unit so that the two cleaning units can be aligned with the side walls of their respective corresponding curbstones 300 at the same time. The structure is simple and compact.

[0093] like Figure 5 and Figure 6As shown, in this embodiment, the second driving mechanism further includes a second driving shaft 255 , a fifth bevel gear 256 and a sixth bevel gear 257 .

[0094] The second drive shaft 255 is rotatably connected to the third mounting bracket 280, and the rotation centerline of the second drive shaft 255 coincides with the hinge centerline of the second mounting bracket 220 and the third mounting bracket 280. The second drive shaft 255 is transmission-connected to one of the first drive shafts 251. Since the synchronous belt structure has stable transmission and simple structure, in this embodiment, the second drive shaft 255 is transmission-connected to one of the first drive shafts 251 via a synchronous belt structure. That is, the first end of the second drive shaft 255 is coaxially sleeved with a synchronous pulley 203, and the synchronous pulley 203 is transmission-connected to the corresponding synchronous pulley 203 via a synchronous belt 204. Of course, in other embodiments, the second drive shaft 255 and the first drive shaft 251 can also be transmission-connected via a transmission chain structure, a transmission belt structure, a gear set structure, etc., which will not be described in detail here.

[0095] The fifth bevel gear 256 is coaxially sleeved on the second drive shaft 255 , and the sixth bevel gear 257 is coaxially sleeved on the power input shaft of the second cleaning roller 290 . The sixth bevel gear 257 is meshed with the fifth bevel gear 256 .

[0096] The power output shaft of the drive motor 254 is in transmission connection with the second drive shaft 255. Specifically, in this embodiment, the power output shaft of the drive motor 254 is coaxially sleeved with a third bevel gear 258, and the second end of the second drive shaft 255 is coaxially sleeved with a fourth bevel gear 259, and the third bevel gear 258 is meshed with the fourth bevel gear 259.

[0097] During operation, the drive motor 254 drives the third bevel gear 258 to rotate, the third bevel gear 258 drives the fourth bevel gear 259 to rotate, the fourth bevel gear 259 drives the second drive shaft 255 to rotate, the second drive shaft 255 drives the corresponding first drive shaft 251 to rotate through the synchronous belt structure, the first drive shaft 251 drives the remaining first drive shaft 251 to rotate through the synchronous belt structure, the first drive shaft 251 drives the corresponding first cleaning roller 230 to rotate through the corresponding first bevel gear 252 and second bevel gear 253.

[0098] At the same time, the second driving shaft 255 drives the second cleaning roller 290 to rotate through the fifth bevel gear 256 and the sixth bevel gear 257 .

[0099] The second drive mechanism makes the rotation center line of the second drive shaft 255 coincide with the rotation center line of the second drive shaft 255 and the hinge center line of the second mounting frame 220 and the third mounting frame 280 (i.e., the second hinge center line), so that the distance between the second drive shaft 255 and the first drive shaft 251 does not change. There is no need to set up an additional tensioning mechanism to tension the synchronous belt 204, and the structure is simple and compact.

[0100] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 As shown, in this embodiment, the second retaining frame 262 includes a rectangular frame 201 and hinge shafts 202 disposed at both ends of the frame 201. The hinge shafts 202 are rotatably connected to the second mounting frame 220. The first bevel gear 252 and the second bevel gear 253 are both disposed within the frame 201. The second end of the retaining frame is connected to the frame 201.

[0101] The present invention also provides an urban road cleaning vehicle, comprising the curbstone cleaning device described in any of the above embodiments.

[0102] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, mechanisms, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A curb cleaning device, comprising a mounting base and a cleaning assembly disposed on the mounting base, wherein the cleaning assembly comprises two cleaning units, characterized in that: The cleaning unit comprises: a first mounting bracket, a first end of which is hinged to the mounting base so that a second end of the first mounting bracket can swing back and forth between a first position and a second position about a hinge centerline thereof; a second mounting bracket, located on a first side of the first mounting bracket, wherein a first end of the second mounting bracket is hinged to the mounting base and a second end thereof is freely extended, and the second mounting bracket is capable of moving with the first mounting bracket; a first cleaning roller, which is arranged on a side of the second mounting frame away from the first mounting frame, wherein a plurality of first cleaning rollers are provided, and the plurality of first cleaning rollers are sequentially spaced along the length direction of the second mounting frame; a first driving mechanism, which is disposed on the mounting seat, and is used to drive the first mounting bracket to move from the first position to the second position or from the second position to the first position; a second driving mechanism, which is disposed on the mounting seat and is used to drive the first cleaning roller to rotate; and a spray head, which is in communication with the cleaning fluid supply system, and is used to spray cleaning fluid onto a target sidewall of the curbstone; When the first mounting frame is in the first position, all the first cleaning rollers remain flush; when the first mounting frame is in the second position, all the first cleaning rollers are staggered, and the opposite ends of any two adjacent first cleaning rollers are aligned or overlapped.

2. The curbstone cleaning device according to claim 1, characterized in that: The cleaning unit also includes a direction maintaining mechanism, which is connected to the first mounting frame and the second mounting frame. The direction maintaining mechanism is used to enable the second mounting frame to move synchronously with the first mounting frame, and to maintain the axial direction of the first cleaning roller during the movement of the first mounting frame, so that the axial direction of the first cleaning roller is always along a preset direction.

3. The curbstone cleaning device according to claim 2, characterized in that: The direction maintaining mechanism includes a maintaining structure corresponding to the first cleaning roller on a one-to-one basis, and the maintaining structure includes: a first retaining frame hingedly connected to the first mounting frame; a second holding frame, which is hinged to the second mounting frame, and the first end of the first cleaning roller is rotatably connected to the second holding frame; a retaining member, a first end of which is connected to the first retaining frame and a second end of which is connected to the second retaining frame, so that the distance between the first retaining frame and the second retaining frame cannot be changed; Among them, the articulation center line of the first mounting frame and the mounting seat is set as the first articulation center line, the intersection center line of the second mounting frame and the mounting seat is set as the second articulation center line, the articulation center line of the first maintaining frame and the first mounting frame is set as the third articulation center line, and the articulation center line of the second maintaining frame and the second mounting frame is set as the fourth articulation center line. The first intersection center line, the second articulation center line, the third articulation center line and the fourth articulation center line are parallel to each other, and the distance between the third articulation center line and the fourth articulation center line is equal to the distance between the first articulation center line and the second articulation center line.

4. The curbstone cleaning device according to claim 3, characterized in that: The second driving mechanism comprises: a first drive shaft, corresponding one-to-one with the first retaining frame, the first drive shaft being rotatably connected to the second retaining frame, the rotation centerline of the first drive shaft coinciding with the fourth hinge centerline, and any two adjacent first drive shafts being in driving connection; a first bevel gear, which corresponds one-to-one to the first drive shaft, and the first bevel gear is coaxially sleeved on the corresponding first drive shaft; a second bevel gear, which corresponds to the first bevel gear on a one-to-one basis, the second bevel gear being coaxially sleeved on the corresponding power input shaft of the first cleaning roller, and the second bevel gear being meshed with the corresponding first bevel gear; and The drive motor is fixedly arranged on the mounting seat, and the power output shaft of the drive motor is transmission-connected to any one of the first drive shafts.

5. The curbstone cleaning device according to claim 4, characterized in that: The cleaning unit also includes: a third mounting bracket, which is fixedly connected to the mounting base, and the second mounting bracket is hinged to the third mounting bracket; and A second cleaning roller having a radius equal to that of the first cleaning roller and a length not exceeding that of the first cleaning roller. A first end of the second cleaning roller is rotatably connected to the third mounting bracket, and a second end of the second cleaning roller extends away from the first mounting bracket; When the first mounting bracket is in the first position, the second cleaning roller is flush with the first cleaning roller, and when the first mounting bracket is in the second position, the second cleaning roller and the opposite side of the first cleaning roller adjacent to it are flush or overlapped, so that there is no cleaning blind spot between the second cleaning roller and the first cleaning roller.

6. The curbstone cleaning device according to claim 5, characterized in that: The second driving mechanism further includes: a second drive shaft, rotatably connected to the third mounting bracket, wherein a rotation centerline of the second drive shaft coincides with an articulation centerline of the second mounting bracket and the third mounting bracket, and the second drive shaft is drivingly connected to one of the first drive shafts; a fifth bevel gear coaxially sleeved on the second drive shaft; and a sixth bevel gear, coaxially sleeved on the power input shaft of the second cleaning roller, the sixth bevel gear meshing with the fifth bevel gear; Wherein, the power output shaft of the drive motor is transmission-connected to the second drive shaft.

7. The curbstone cleaning device according to any one of claims 3 to 6, characterized in that: The second retaining frame includes a rectangular frame and hinge shafts arranged at both ends of the frame, the hinge shafts are rotatably connected to the second mounting frame, the first bevel gear and the second bevel gear are both arranged in the frame, and the second end of the retaining frame is connected to the frame.

8. An urban road cleaning vehicle, characterized in that: The invention comprises the curbstone cleaning device according to any one of claims 1 to 7.

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