Road cleaning equipment

Abstract

The present invention relates to a road cleaning device, comprising a chassis frame, a suction device, a roller brush device, and a sweeping disc device; the sweeping disc device and the suction device are provided on both sides of the chassis frame, and the sweeping disc device is used to sweep materials on both sides of the road to the suction device; the roller brush device is provided at the lower end of the chassis frame, and the roller brush device is used to sweep materials in the middle of the road to the suction device; the suction device is provided with a suction spray rod device and a suction dust removal device, and the roller brush device is provided with a roller brush spray rod device and a roller brush dust removal device; the suction spray rod device and the roller brush spray rod device are used to flush the road surface, and the suction dust removal device and the roller brush dust removal device are used to remove dust from the road surface. Flexible operation greatly improves operation efficiency, reduces operation cost, and avoids the need to dispatch additional washing and sweeping vehicles to perform further cleaning operations when a road surface is too dirty to be cleaned during operation by a road sweeper.

Description

Technical Field

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

[0002] Nowadays, washing and sweeping vehicles and road sweepers are widely used in urban roads to clean roads. However, traditional washing and sweeping vehicles and road sweepers have certain problems.

[0003] Traditional road sweepers feature sweeping discs on both sides, a suction cup in the middle, and a high-pressure spray boom that flushes the road surface with high-pressure water. For a more in-depth cleaning, a combination of high-pressure spray booms, high-pressure side spray booms, and sweeping discs is required. However, since this mode lacks a central roller brush for cleaning, and the water pressure from the high-pressure and side spray booms is only a few megapascals, mud, dust, and dirt trapped in potholes on the road surface can't be completely flushed out. Furthermore, the suction system in traditional road sweepers operates at a slightly lower negative pressure, so most road surfaces fall short of expectations. If this vehicle is used for cleaning without high-pressure water flushing, similar to a road sweeper, it relies solely on low-pressure suction to remove dust and most impurities from the surface, resulting in even poorer cleaning results.

[0004] Traditional road sweepers are equipped with sweeping discs on both sides and a roller brush and suction device in the middle. However, when performing road sweeping operations, the road sweeper's high speed makes it difficult to clean a small section of road with compacted dust and heavy debris. On the one hand, relying on the sweeping discs and roller brushes for dry sweeping is not enough to completely clean the road surface. On the other hand, sweeping a road with heavy dust and debris will generate a lot of dust. Relying on the dust removal devices on traditional road sweepers is far from effective in reducing dust and is also prone to secondary pollution. Summary of the Invention

[0005] Therefore, it is necessary to provide a road cleaning device to solve the technical problem that the existing washing and sweeping vehicles and road sweeping vehicles are unable to complete the road cleaning operation well.

[0006] To achieve the above-mentioned purpose, the inventor provides a road cleaning device, comprising a chassis frame, a suction device, a roller brush device and a sweeping disc device;

[0007] The sweeping disc device and the suction device are provided on both sides of the chassis frame, and the sweeping disc device is used to sweep the materials on both sides of the road to the suction device;

[0008] The roller brush device is provided at the lower end of the chassis frame, and the roller brush device is used to sweep the materials in the middle of the road to the suction device;

[0009] The suction device is provided with a suction spray rod device and a suction dust removal device, and the roller brush device is provided with a roller brush spray rod device and a roller brush dust removal device;

[0010] The suction spray bar device and the roller brush spray bar device are used for washing the road surface, and the suction dust removal device and the roller brush dust removal device are used for removing dust on the road surface.

[0011] Furthermore, the road cleaning equipment further comprises a connecting frame, which is fixed to the chassis frame;

[0012] The sweeping disc device includes a sweeping disc telescopic device and a sweeping disc assembly. One end of the sweeping disc telescopic device is fixed on the connecting frame, and the other end of the sweeping disc telescopic device is connected to the sweeping disc assembly. The sweeping disc telescopic device is used to drive the sweeping disc assembly to rotate clockwise or counterclockwise around the connection point.

[0013] Furthermore, the sweeping disc assembly includes a sweeping disc rotating shaft fixing member, a sweeping disc rotating shaft and a sweeping disc rotating shaft connecting sleeve;

[0014] The sweeping disc rotating shaft fixing part is fixed on the connecting frame, and the sweeping disc rotating shaft connecting sleeve is connected to the sweeping disc rotating shaft fixing part through the sweeping disc rotating shaft;

[0015] The other end of the sweeping disc telescopic device is connected to the sweeping disc rotating shaft connecting sleeve, and the sweeping disc telescopic device is used to drive the sweeping disc rotating shaft connecting sleeve to rotate clockwise or counterclockwise around the sweeping disc rotating shaft.

[0016] Furthermore, the sweeping disc telescopic device further comprises a telescopic limit screw and a telescopic limit nut;

[0017] The sweeping disc rotating shaft connecting sleeve is provided with a telescopic limiting hole at the sweeping disc rotating shaft, and the telescopic limiting nut is provided at the telescopic limiting hole;

[0018] The telescopic limit screw passes through the telescopic limit nut and the telescopic limit hole. The telescopic limit screw is used to adjust the clockwise rotation angle of the sweeping disc shaft connecting sleeve around the sweeping disc shaft by adjusting the length of the protruding sweeping disc shaft.

[0019] Furthermore, the sweeping disc assembly further comprises a sweeping disc lifting device, a sweeping disc member and a sweeping disc swing arm connecting member, wherein the sweeping disc member comprises a sweeping disc;

[0020] One end of the sweeping disc lifting device is fixed to the upper end of the sweeping disc rotating shaft connecting sleeve, and the other end of the sweeping disc lifting device is connected to the sweeping disc member;

[0021] One end of the sweeping disc swing arm connecting piece is hinged to the lower end of the sweeping disc rotating shaft connecting sleeve, and the other end of the sweeping disc swing arm connecting piece is connected to the sweeping disc member;

[0022] The sweeping disc lifting device is used to drive the sweeping disc to rise or fall relative to the ground.

[0023] Furthermore, a lifting limit hole is provided below the sweeping disc rotating shaft connecting sleeve, and a lifting limit nut is provided at the lifting limit hole;

[0024] The lifting limit screw passes through the lifting limit nut and the lifting limit hole. The lifting limit screw is used to adjust the height of the sweeping disc relative to the ground by adjusting the length of the protruding sweeping disc swing arm connecting piece.

[0025] Furthermore, the disk sweeping device further comprises a disk sweeping baffle assembly, and the disk sweeping baffle assembly comprises a first disk sweeping baffle and a second disk sweeping baffle;

[0026] The first sweeping disc baffle is connected to the sweeping disc swing arm connecting member, and the second sweeping disc baffle is connected to the suction device;

[0027] The first sweeping disc baffle and the second sweeping disc baffle cooperate to guide the garbage swept by the sweeping disc to the suction device.

[0028] Furthermore, the disk sweeping device further comprises a disk sweeping dust removal device, and the disk sweeping dust removal device is arranged on the disk sweeping member;

[0029] The disc sweeping dust removal device includes a disc sweeping dust removal spray rod and a disc sweeping dust removal nozzle. The disc sweeping dust removal spray rod is provided with two or more disc sweeping dust removal nozzles, and high-pressure water is sprayed through the disc sweeping dust removal nozzles.

[0030] Furthermore, the roller brush device includes a roller brush fixing seat, a roller brush rotating assembly, a roller brush assembly and a swinging device, and the roller brush assembly includes a roller brush;

[0031] The roller brush fixing seat is fixed on the roller brush rotating assembly, and the roller brush rotating assembly is arranged on the roller brush assembly;

[0032] One end of the swing device is fixed to the roller brush fixing seat, and the other end of the swing device is connected to the roller brush rotating assembly;

[0033] The swing device is used to drive the roller brush to rotate clockwise or counterclockwise relative to the roller brush fixing seat through the roller brush rotating assembly.

[0034] Furthermore, the suction device includes a suction bracket, a suction seat, a suction opening and closing device, and a suction connection assembly;

[0035] The suction seat is fixed on the suction connection assembly, and the suction connection assembly is hinged to the suction bracket;

[0036] One end of the suction opening and closing device is fixed to the suction bracket, and the other end of the suction opening and closing device is connected to the suction connection assembly;

[0037] The suction opening and closing device is used to drive the suction seat to rotate clockwise or counterclockwise around the hinge point, so that the height of the suction seat relative to the ground becomes higher or lower.

[0038] Unlike existing technologies, the above-mentioned technical solution features suction devices and sweeping discs on both sides of the chassis frame, and a roller brush device in the center. Furthermore, a suction spray bar and a suction dust removal device are installed on the suction device, while a roller brush spray bar and a roller brush dust removal device are installed on the roller brush device, combining washing and cleaning functions. When the road surface is dirty and compacted with dust, the combination of the cleaning functions of the roller brush and sweeping disc, combined with the high-pressure flushing (over 20 MPa) of the roller brush spray bar and suction spray bar, and the ultra-high-pressure suction function of the suction device, allows for a deep clean of the road surface. When the road surface is free of compacted mud and dusty, the combination of the cleaning functions of the roller brush and sweeping disc, combined with the dust reduction functions of the suction dust removal device and the roller brush dust removal device, and the ultra-high-pressure suction function of the suction device, allows for rapid road cleaning, thereby improving road cleaning efficiency. Moreover, in urban road cleaning operations, some road surfaces are relatively clean while others are relatively dirty. The device of the present invention can flexibly clean the road surface. If the road surface is relatively dirty, the washing and sweeping mode is turned on. If the road surface is relatively clean, the cleaning mode is switched to. The flexible operation greatly improves the operation efficiency, reduces the operation cost, and avoids the situation where the road sweeper encounters a relatively dirty road surface that cannot be solved during operation, and has to dispatch additional washing and sweeping vehicles to perform further cleaning operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the road cleaning equipment described in the specific embodiment;

[0040] Figure 2 It is another structural schematic diagram of the road cleaning equipment described in the specific embodiment;

[0041] Figure 3 Schematic diagram of another structure of the road cleaning equipment described in the specific embodiment;

[0042] Figure 4 It is a structural schematic diagram of the disk sweeping device described in the specific implementation method;

[0043] Figure 5 It is a structural schematic diagram of the sweeping disc assembly described in the specific implementation method;

[0044] Figure 6 for Figure 5 A magnified view of middle A;

[0045] Figure 7 It is a structural schematic diagram of the sweeping disc assembly and the suction device according to the specific embodiment;

[0046] Figure 8 It is a structural schematic diagram of the roller brush assembly described in the specific embodiment;

[0047] Figure 9 It is a structural diagram of the roller brush rotating assembly described in the specific embodiment;

[0048] Figure 10 It is a structural schematic diagram of the suction device described in the specific embodiment;

[0049] Figure 11 This is a schematic diagram of a structure in which the height of the suction port from the ground is increased according to a specific embodiment;

[0050] Figure 12 is another structural schematic diagram of the suction device described in the specific embodiment;

[0051] Figure 13 Schematic diagram of another structure of the suction device described in the specific embodiment;

[0052] Figure 14 for Figure 13 Enlarged view of middle B;

[0053] Figure 15 This is another structural schematic diagram of a specific embodiment in which the height of the suction port from the ground is increased;

[0054] Figure 16 for Figure 15 Enlarged view of C in the middle.

[0055] Description of reference numerals:

[0056] 1. Chassis frame;

[0057] 2. Connecting frame;

[0058] 3. Suction device;

[0059] 31. Suction stent;

[0060] 32. Suction seat;

[0061] 321, suction side panel;

[0062] 322, suction baffle;

[0063] 33. Suction opening and closing device;

[0064] 341, suction connection;

[0065] 342, suction fixed bracket;

[0066] 343, suction ear plate;

[0067] 35. Suction adjustment assembly;

[0068] 351, suction adjustment block;

[0069] 352, suction adjustment bolt;

[0070] 353, suction adjustment nut;

[0071] 36. Suction boom device;

[0072] 361, pipe clamp;

[0073] 37. Suction dust removal device;

[0074] 38. Suction and water-removing device;

[0075] 39. Suction and lifting device;

[0076] 4. Roller brush device;

[0077] 41. Roller brush fixing plate;

[0078] 42. Roller brush fixing seat;

[0079] 43. Roller brush rotation assembly;

[0080] 431, bearings;

[0081] 432, bearing inner ring seat;

[0082] 433, outer ring lower end cover;

[0083] 434, bearing cover plate;

[0084] 435, outer ring upper end cover;

[0085] 436, connecting screws;

[0086] 44. Swinging device;

[0087] 441, swing device connecting seat;

[0088] 442, swing device connector;

[0089] 45. Roller brush lifting device;

[0090] 46. ​​Roller brush baffle;

[0091] 47. Roller brush assembly;

[0092] 471, roller brush housing;

[0093] 472, swing arm parts;

[0094] 473, roller brush motor;

[0095] 474, roller brush;

[0096] 475, swing arm connecting sleeve;

[0097] 476, swing arm connecting shaft;

[0098] 477, elastic parts;

[0099] 478, roller brush adjustment nut;

[0100] 48. Roller brush dust removal device;

[0101] 49. Roller brush spray bar device;

[0102] 5. Sweeping device;

[0103] 51. Sweep disc telescopic device;

[0104] 511, telescopic limit screw;

[0105] 512, telescopic limit nut;

[0106] 52. Sweep disc assembly;

[0107] 521. Sweep disc lifting device;

[0108] 522, sweeping disc shaft fixing part;

[0109] 5221, telescopic limit block;

[0110] 523, sweeping disc shaft connecting sleeve;

[0111] 524, sweeping disk shaft;

[0112] 525, sweeping plate swing arm connecting piece;

[0113] 526, sweeping disc parts;

[0114] 5261, sweep the plate;

[0115] 527, lift limit block;

[0116] 528, lift limit screw;

[0117] 529, lifting limit nut;

[0118] 53. Sweep plate baffle assembly;

[0119] 531, first sweeping disc baffle;

[0120] 532, second sweeping disc baffle;

[0121] 54. Sweeping disk dust removal device;

[0122] 6. Suction hose. DETAILED DESCRIPTION

[0123] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0124] In the description of this application, unless otherwise expressly specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this invention can be understood according to the specific circumstances.

[0125] In the description of this specification, it should be understood that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described from the perspectives shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also be indirectly connected to the other element "on" or "under" through an intermediate element.

[0126] See also Figures 1 to 3 This embodiment relates to a road cleaning device, comprising a chassis frame 1, a suction device 3, a roller brush device 4, and a sweeping disc device 5. The sweeping disc device 5 and the suction device 3 are provided on both sides of the chassis frame 1. The sweeping disc device 5 is used to sweep materials on both sides of the road to the suction device 3. A roller brush device 4 is provided at the lower end of the chassis frame 1. The roller brush device 4 is used to sweep materials in the middle of the road to the suction device 3. The suction device 3 is provided with a suction spray bar device 36 and a suction dust removal device 37, and the roller brush device 4 is provided with a roller brush spray bar device 49 and a roller brush dust removal device 48. The suction spray bar device 36 and the roller brush spray bar device 49 are used to flush the road surface, and the suction dust removal device 37 and the roller brush dust removal device 48 are used to remove dust from the road surface.

[0127] The road cleaning equipment can be used on road pollution removal vehicles, sanitation vehicles, special vehicles or ordinary vehicles, etc., as long as the chassis frame 1 is installed on the above vehicles.

[0128] The chassis frame 1 can be an integrally formed structure or comprise two parallel frames. A suction device 3 and a sweeping disc device 5 are provided on either side of the chassis frame 1 or on both frames, respectively. The suction device 3 is provided at the front end of the sweeping disc device 5 in the direction of vehicle travel. A roller brush device 4 is provided directly below the chassis frame 1 or between the two frames, and the suction device 3 is also provided at the front end of the roller brush device 4 in the direction of vehicle travel. The suction spray bar device 36 and the roller brush spray bar device 49 can be existing spray bar devices, and the suction dust removal device 37 and the roller brush dust removal device 48 can also be existing dust removal devices. The main inventive point of the present invention lies in the improvement of the entire structure to facilitate subsequent flexible use.

[0129] The above technical solution is equipped with a suction device 3 and a sweeping device 5 on both sides of the chassis frame 1, and a roller brush device 4 is installed in the middle of the chassis frame 1. In addition, a suction spray rod device 36 and a suction dust removal device 37 are installed on the suction device 3, and a roller brush spray rod device 49 and a roller brush dust removal device 48 are installed on the roller brush device 4, combining the washing and cleaning functions.

[0130] When the road surface is dirty and has compacted dust, the cleaning function of the roller brush device 4 and the sweeping disc device 5, the high-pressure flushing (water pressure of more than 20 MPa) function of the roller brush spray rod device 49 and the suction spray rod device 36, and the ultra-high-pressure suction function of the suction device 3 can be used to achieve deep cleaning of the road surface through a washing and sweeping mode that combines the three functions.

[0131] When the road surface is free of compacted soil and is covered with dust, the cleaning function of the roller brush device 4 and the sweeping disc device 5, the dust reduction function of the suction dust removal device 37 and the roller brush dust removal device 48, and the ultra-high pressure suction function of the suction device 3 can be combined to form a cleaning mode that combines the three functions to perform a rapid road cleaning operation, thereby improving the road cleaning operation. In addition, in urban road cleaning operations, some road surfaces are relatively clean and some are relatively dirty. The device of the present invention can flexibly clean the road surface. If the road surface is relatively dirty, the washing and sweeping mode is turned on. If the road surface is relatively clean, the cleaning mode is switched to the sweeping mode. The flexible operation greatly improves the operation efficiency, reduces the operation cost, and avoids the need to dispatch additional washing and sweeping vehicles to perform further cleaning operations when the road sweeper encounters a relatively dirty road surface that cannot be solved.

[0132] According to some embodiments of the present application, optionally, in combination with Figure 4As shown, the road cleaning equipment further includes a connecting frame 2, which is fixed to the chassis frame 1. The sweeping disc device 5 includes a sweeping disc telescopic device 51 and a sweeping disc assembly 52. ​​One end of the sweeping disc telescopic device 51 is fixed to the connecting frame 2, and the other end of the sweeping disc telescopic device 51 is connected to the sweeping disc assembly 52. ​​The sweeping disc telescopic device 51 is used to drive the sweeping disc assembly 52 to rotate clockwise or counterclockwise around the connection point.

[0133] The connecting frame 2 is configured in a certain shape and has at least three extension ends, one of which is used to fix one end of the sweeping disc telescopic device 51, another is used to fix the sweeping disc shaft fixing member 522, and the last one is used to be hinged to the suction device 3.

[0134] The sweeping disc telescopic device 51 can be an air cylinder or an oil cylinder, which drives the sweeping disc assembly 52 to rotate clockwise or counterclockwise around the connection point or connecting axis between the sweeping disc telescopic device 51 and the sweeping disc assembly 52 through the extension and contraction of the piston rod, thereby driving the sweeping disc assembly 52 to extend outward or retract inward, controlling the moving trajectory of the sweeping disc assembly 52, making the sweeping disc 5261 more flexible in cleaning and able to clean garbage on the road surface over a larger range.

[0135] According to some embodiments of the present application, optionally, in combination with Figure 5 As shown, the sweeper assembly 52 includes a sweeper shaft fixing member 522, a sweeper shaft 524, and a sweeper shaft connecting sleeve 523. The sweeper shaft fixing member 522 is fixed to the connecting frame 2, and the sweeper shaft connecting sleeve 523 is connected to the sweeper shaft fixing member 522 via the sweeper shaft 524. The other end of the sweeper extension and retraction device 51 is connected to the sweeper shaft connecting sleeve, and the sweeper extension and retraction device 51 is used to drive the sweeper shaft connecting sleeve 523 to rotate clockwise or counterclockwise about the sweeper shaft 524.

[0136] Specifically, the sweeping disc shaft fixing member 522 is fixed to the side of an extended end of the connecting frame 2, and the sweeping disc connecting sleeve is connected to the sweeping disc shaft fixing member 522 via the sweeping disc shaft 524. The other end of the sweeping disc telescopic device 51 can be connected to the sweeping disc shaft connecting sleeve 523 via a Y-shaped joint. Alternatively, a transition piece can be provided, one end of which is fixed to the sweeping disc shaft connecting sleeve 523, and the other end of the sweeping disc telescopic device 51 can be connected to the other end of the transition piece via a Y-shaped joint. Both connection methods aim to directly or indirectly connect the sweeping disc telescopic device 51 to the sweeping disc shaft connecting sleeve 523, thereby driving the sweeping disc shaft connecting sleeve 523 to rotate about the sweeping disc shaft 524 via the sweeping disc telescopic device 51. When the sweeping disc extension and retraction device 51 drives the sweeping disc shaft connecting sleeve 523 to rotate clockwise around the sweeping disc shaft 524, the sweeping disc assembly 52 extends outward. When the sweeping disc extension and retraction device 51 drives the sweeping disc shaft connecting sleeve 523 to rotate counterclockwise around the sweeping disc shaft 524, the sweeping disc assembly 52 retracts inward. By controlling the extension and retraction range of the sweeping disc assembly 52, the sweeping disc 5261 can sweep more flexibly and can clean garbage on a wider range of the road surface.

[0137] According to some embodiments of the present application, optionally, in combination with Figure 6 As shown, the sweeping disc extension and retraction device 51 also includes a telescopic stop screw 511 and a telescopic stop nut 512. The sweeping disc shaft connecting sleeve 523 is provided with a telescopic stop hole on the sweeping disc shaft 524, and the telescopic stop nut 512 is positioned within the telescopic stop hole. The telescopic stop screw 511 passes through the telescopic stop nut 512 and the telescopic stop hole. The telescopic stop screw 511 is used to adjust the clockwise rotation angle of the sweeping disc shaft connecting sleeve 523 around the sweeping disc shaft 524 by adjusting the length of the protrusion from the sweeping disc shaft 524.

[0138] In order to limit the outward extension of the sweeping disc connecting sleeve, a corresponding arrangement is made at the sweeping disc rotating shaft 524. The sweeping disc rotating shaft connecting sleeve 523 is provided with a telescopic limit hole at the sweeping disc rotating shaft 524. The telescopic limit nut 512 is fixed to the telescopic limit hole. One can be provided on each side of the telescopic limit hole, or one can be provided on one side of the telescopic limit hole. It is used to fix the telescopic limit screw 511. One end of the telescopic limit screw 511 abuts against the inner side of the sweeping disc rotating shaft connecting member after the sweeping disc rotating shaft connecting sleeve 523 rotates a certain angle around the sweeping disc rotating shaft 524. Preferably, the telescopic limit hole can be provided with an internal thread, and the telescopic limit screw 511 can be provided with an external thread. In this case, only one telescopic limit screw 511 is required. When the sweeping disc retractable device 51 drives the sweeping disc shaft connecting sleeve 523 to rotate clockwise around the sweeping disc shaft 524, the telescopic limit screw 511 on the sweeping disc shaft connecting sleeve 523 rotates accordingly until one end of the telescopic limit screw 511 abuts the sweeping disc shaft fixing member 522. The sweeping disc shaft 524 is then stuck, and the sweeping disc shaft connecting sleeve 523 cannot continue to rotate around the sweeping disc shaft 524. As a result, the extended position of the sweeping disc shaft connecting sleeve 523 is limited. Therefore, the extended position of the sweeping disc shaft connecting sleeve 523 can be adjusted by controlling the length of the telescopic limit screw 511 protruding from the sweeping disc shaft 524. The shorter the telescopic limit screw 511 protrudes from the sweeping disc shaft 524, the greater the range of extension of the sweeping disc shaft connecting sleeve 523. Similarly, the longer the telescopic limit screw 511 protrudes from the sweeping disc shaft 524, the smaller the range of extension of the sweeping disc shaft connecting sleeve 523.

[0139] As a preferred embodiment, to facilitate the positioning of the telescopic limit screw 511, a telescopic limit block 5221 can be provided inside the sweeping disc rotating shaft fixing member 522. The telescopic limit block 5221 protrudes toward the sweeping disc rotating shaft 524. One end of the telescopic limit screw 511 abuts against the telescopic limit block 5221 after rotating a certain angle around the sweeping disc rotating shaft 524 as the sweeping disc rotating shaft connecting sleeve 523 rotates. When the sweeping disc telescopic device 51 drives the sweeping disc rotating shaft connecting sleeve 523 clockwise around the sweeping disc rotating shaft 524, the telescopic limit screw 511 on the sweeping disc rotating shaft connecting sleeve 523 rotates accordingly. When one end of the telescopic limit screw 511 abuts against the telescopic limit block 5221, the sweeping disc rotating shaft 524 is stuck, and the sweeping disc rotating shaft connecting sleeve 523 cannot continue to rotate around the sweeping disc rotating shaft 524, thereby limiting the extended position of the sweeping disc rotating shaft connecting sleeve 523. Therefore, by controlling the length of the telescopic limit screw 511 protruding from the telescopic limit block 5221, the extended position of the sweeping disc shaft connecting sleeve 523 can be adjusted. The shorter the length of the telescopic limit screw 511 protruding from the telescopic limit block 5221, the larger the range of the sweeping disc shaft connecting sleeve 523 that can be extended. Similarly, the longer the length of the telescopic limit screw 511 protruding from the telescopic limit block 5221, the smaller the range of the sweeping disc shaft connecting sleeve 523 that can be extended.

[0140] According to some embodiments of the present application, optionally, as Figure 5 As shown, the sweeper assembly 52 also includes a sweeper lifting device 521, a sweeper member 526, and a sweeper swing arm connecting member 525. The sweeper member 526 includes a sweeper 5261. One end of the sweeper lifting device 521 is fixed to the upper end of the sweeper shaft connecting sleeve 523, and the other end of the sweeper lifting device 521 is connected to the sweeper member 526. One end of the sweeper swing arm connecting member 525 is hinged to the lower end of the sweeper shaft connecting sleeve 523, and the other end of the sweeper swing arm connecting member 525 is connected to the sweeper member 526. The sweeper lifting device 521 is used to drive the sweeper 5261 to rise or fall relative to the ground.

[0141] The sweeping disc member 526 includes a sweeping disc 5261, a sweeping disc motor, and a sweeping disc motor seat. The sweeping disc motor seat is arranged on the sweeping disc, and the sweeping disc motor is arranged on the sweeping disc motor seat. The sweeping disc motor is used to drive the sweeping disc 5261 to rotate, so that the sweeping disc 5261 performs a cleaning operation.

[0142] The two ends of the sweeping disc swing arm connecting member 525 can be connected to the sweeping disc rotating shaft connecting sleeve 523 and the sweeping disc motor seat of the sweeping disc member 526 via pins. The sweeping disc rotating shaft connecting sleeve 523 is connected to the sweeping disc member 526 via the sweeping disc swing arm connecting member 525. In this way, when the sweeping disc retracting device 51 drives the sweeping disc rotating shaft connecting sleeve 523 to rotate clockwise or counterclockwise around the sweeping disc rotating shaft 524, the sweeping disc 5261 on the sweeping disc member 526 extends outward or retracts inward.

[0143] One end of the sweeper plate lifting device 521 is fixed to the upper end of the sweeper plate rotating shaft connecting sleeve 523. The other end of the sweeper plate lifting device 521 is connected to the sweeper plate motor mount of the sweeper plate member 526 via a Y-joint. The sweeper plate lifting device 521 can be a pneumatic or hydraulic cylinder. The piston rod of the sweeper plate lifting device 521 moves the sweeper plate member 526 upward or downward around the pin connecting the sweeper plate swing arm connecting member 525 to the sweeper plate rotating shaft connecting sleeve 523, thereby raising or lowering the sweeper plate 5261 on the sweeper plate member 526 relative to the ground. When the sweeper plate lifting device 521 moves the sweeper plate member 526 upward around the pin connecting the sweeper plate swing arm connecting member 525 to the sweeper plate rotating shaft connecting sleeve 523, the sweeper plate 5261 rises relative to the ground. When the sweeper plate lifting device 521 moves the sweeper plate member 526 downward around the pin connecting the sweeper plate swing arm connecting member 525 to the sweeper plate rotating shaft connecting sleeve 523, the sweeper plate 5261 lowers relative to the ground.

[0144] According to some embodiments of the present application, optionally, as Figure 6As shown, a lifting limit hole is provided below the sweeping disc shaft connecting sleeve 523, and a lifting limit nut 529 is provided in the lifting limit hole. A lifting limit screw 528 passes through the lifting limit nut 529 and the lifting limit hole. The lifting limit screw 528 is used to adjust the height of the sweeping disc 5261 relative to the ground by adjusting the length of the protruding sweeping disc swing arm connecting piece 525.

[0145] To limit the height of the sweeping disc 5261 from the ground and prevent it from being lifted too low and damaging the bristles, a lifting limit screw 528 and a lifting limit nut 529 are provided. A lifting limit hole is provided at the lower end of the sweeping disc connecting sleeve. A lifting limit nut 529 is secured to the lifting limit hole. One lifting limit nut 529 can be provided on either side of the lifting limit hole, or one on one side of the lifting limit hole to secure the lifting limit screw 528. Preferably, the lifting limit hole can be internally threaded, and the lifting limit screw 528 can be externally threaded. In this case, only one lifting limit screw 528 is sufficient. When the sweeping disc lifting device 521 drives the sweeping disc member 526 to move downward around the pin connecting the sweeping disc swing arm connecting member 525 and the sweeping disc rotating shaft connecting sleeve 523, the sweeping disc swing arm connecting member 525 also moves downward until the telescopic limit screw 511 abuts the lower surface of the sweeping disc swing arm connecting member 525. The sweeping disc swing arm connecting member 525 is then stuck and the sweeping disc lifting device 521 cannot drive the sweeping disc member 526 to move further downward. As a result, the descending height of the sweeping disc 5261 on the sweeping disc member 526 is limited, thereby preventing the sweeping disc 5261 from being too low to the ground and damaging the bristles of the sweeping disc 5261. Therefore, the descending height of the sweeping disc 5261 can be adjusted by controlling the length of the lifting limit screw 528 protruding from the sweeping disc swing arm connecting member 525. The shorter the lifting limit screw 528 protruding from the sweeping disc swing arm connecting member 525, the lower the sweeping disc 5261 descends, that is, the lower the height from the ground. Similarly, the longer the lifting limit screw 528 protrudes from the sweeping plate swing arm connecting piece 525, the higher the sweeping plate 5261 is lowered, that is, the higher the height from the ground.

[0146] As a preferred embodiment, in order to facilitate the limiting of the lifting limit screw 528, a lifting limit block 527 can be provided on the lower surface of the sweeping plate swing arm connecting member 525. The lifting limit block 527 can be tilted downward at a certain angle or can be provided perpendicular to the sweeping plate swing arm connecting member 525. When the sweeping plate lifting device 521 drives the sweeping plate member 526 to move downward around the pin connecting the sweeping plate swing arm connecting member 525 and the sweeping plate rotating shaft connecting sleeve 523, the sweeping plate swing arm connecting member 525 also moves downward, and the lifting limit block 527 on the sweeping plate swing arm connecting member 525 also moves downward accordingly. Until the telescopic limit screw 511 abuts against the lifting limit block 527, the sweeping plate swing arm connecting member 525 is stuck, and the sweeping plate lifting device 521 cannot drive the sweeping plate member 526 to move further downward. Therefore, the height to which the sweeping disc 5261 descends can be adjusted by controlling the length of the lifting limit screw 528 protruding from the lifting limit block 527. The shorter the length of the lifting limit screw 528 protruding from the lifting limit block 527, the lower the sweeping disc 5261 descends, that is, the lower its height from the ground. Similarly, the longer the length of the lifting limit screw 528 protruding from the lifting limit block 527, the higher the sweeping disc 5261 descends, that is, the higher its height from the ground.

[0147] According to some embodiments of the present application, optionally, as Figure 7 As shown, the sweeping disc device 5 also includes a sweeping disc baffle assembly 53, which includes a first sweeping disc baffle 531 and a second sweeping disc baffle 532. The first sweeping disc baffle 531 is connected to the sweeping disc swing arm connector 525, and the second sweeping disc baffle 532 is mounted on the suction bracket 31 of the suction device 3. The first sweeping disc baffle 531 and the second sweeping disc baffle 532 cooperate to guide the garbage swept by the sweeping disc 5261 to the suction device 3.

[0148] Since the sweeping disc 5 is primarily used to sweep cleaned road debris into the suction device 3, a sweeping disc baffle assembly 53 is provided to facilitate this process. Both the first sweeping disc baffle 531 and the second sweeping disc baffle 532 are conventional baffles. The upper end of the first sweeping disc baffle 531 is fixed to the sweeping disc swing arm connector 525. The first sweeping disc baffle 531 is positioned on one side of the sweeping disc 5261. The second sweeping disc baffle 532 is also positioned on the suction device 3 and extends along the end of the first sweeping disc baffle 531 toward the suction port of the suction device 3. When the sweeping disc 5261 descends to begin sweeping, the sweeping disc baffle assembly 53 comes into contact with the ground. The sweeping disc 5261 rotates and sweeps, causing dust to splash. The sweeping disc baffle assembly 53 serves to block mud and direct dust toward the suction port.

[0149] As a preferred embodiment, the first sweeping plate baffle 531 and the second sweeping plate baffle 532 at least partially cover each other, forming a "human" or "entrance" shape. Only in this way can it be ensured that when the first sweeping plate baffle 531 and the second sweeping plate baffle 532 guide the garbage to the suction device 3, the garbage will not fly away through the gap between the first sweeping plate baffle 531 and the second sweeping plate baffle 532. By arranging the sweeping plate baffle assembly 53, the garbage swept by the sweeping plate is guided from the first sweeping plate baffle 531 to the second sweeping plate baffle 532, and then the second sweeping plate baffle 532 guides the garbage to the suction port of the suction device 3, and finally the suction port sucks the garbage, thus completing the cleaning of the garbage.

[0150] According to some embodiments of the present application, optionally, as Figure 7 shown, the sweeping device 5 further includes a sweeping dust removal device 54, and the sweeping dust removal device 54 is arranged on the sweeping member 526. The sweeping dust removal device 54 includes a sweeping dust removal spray rod and a sweeping dust removal nozzle. Two or more sweeping dust removal nozzles are arranged on the sweeping dust removal spray rod, and high-pressure water sprays through the sweeping dust removal nozzles.

[0151] Among them, the sweeping dust removal device 54 extends and is fixed through the sweeping motor seat of the sweeping member 526. The purpose of arranging the sweeping dust removal device 54 is that when the sweeping plate 5261 sweeps the dust on the road surface, a lot of dust will be raised, which is easy to pollute the environment. Therefore, in order to reduce the dust, the sweeping dust removal device 54 is arranged, and the internal water tank or the externally connected high-pressure water passes through the sweeping dust removal spray rod and then sprays through the sweeping dust removal nozzles.

[0152] According to some embodiments of the present application, optionally, as Figure 8 shown, the brush roller device 4 includes a brush roller fixing seat 42, a brush roller rotating assembly 43, a brush roller assembly 47 and a swinging device 44, and the brush roller assembly 47 includes a brush roller 474. The brush roller fixing seat 42 is fixed on the brush roller rotating assembly 43, and the brush roller rotating assembly 43 is arranged on the brush roller assembly 47. One end of the swinging device 44 is fixed on the brush roller fixing seat 42, and the other end of the swinging device 44 is connected to the brush roller rotating assembly 43. The swinging device 44 is used to drive the brush roller 474 to rotate clockwise or counterclockwise relative to the brush roller fixing seat 42 through the brush roller rotating assembly 43.

[0153] Among them, the brush roller fixing seat 42 is integrally formed and has a shape extending from the middle to both sides. Brush roller fixing plates 41 are arranged on both sides of the brush roller fixing seat 42, and the brush roller device 4 is fixed on the chassis frame 1 through the brush roller fixing plates 41. The brush roller rotating assembly 43 is fixed on the brush roller assembly 47, and the brush roller rotating assembly 43 can drive the brush roller assembly 47 to rotate.

[0154] The function of the roller brush assembly 4 is to sweep the garbage removed by the roller brush 474 into the suction device 3. However, due to varying road conditions during operation, some garbage may be concentrated on the right side of the road, while others may be concentrated on the left. To ensure that the road cleaning equipment sweeps the garbage toward the front of the suction device 3 and removes it during operation, the existing roller brush assembly 4 is equipped with a swing mechanism 44. The swing mechanism 44 drives the roller brush assembly 47 to rotate relative to the roller brush holder 42 via the roller brush rotation assembly 43. When the roller brush assembly 47 rotates clockwise relative to the roller brush holder 42, the roller brush assembly 47 tilts to the left; when the roller brush assembly 47 rotates counterclockwise relative to the roller brush holder 42, the roller brush assembly 47 tilts to the right. By controlling the tilt direction of the roller brush assembly 47, the tilt direction of the roller brush 474 on the roller brush assembly 47 is controlled, allowing for flexible operation and enabling the roller brush assembly 4 to sweep garbage to one side during operation, resulting in more efficient garbage cleaning.

[0155] According to some embodiments of the present application, optionally, in combination with Figure 9 As shown, the roller brush rotating assembly 43 includes a bearing 431, a bearing inner ring seat 432, an outer ring lower end cap 433, a bearing cover plate 434, and an outer ring upper end cap 435. The bearing 431 includes an inner bearing and an outer bearing. The roller brush assembly 47 also includes a roller brush housing 471, with a roller brush 474 positioned below the roller brush housing 471. The roller brush holder 42, the bearing cover plate 434, and the bearing inner ring seat 432 are fixedly connected and surround the inner bearing. The outer ring upper end cap 435, the roller brush housing 471, and the outer ring lower end cap 433 are fixedly connected and surround the outer bearing. The other end of the swing mechanism 44 is connected to the outer ring lower end cap 433. The swing mechanism 44 is used to drive the roller brush 474 to rotate clockwise or counterclockwise relative to the roller brush holder 42 via the outer ring lower end cap 433.

[0156] The roller brush rotating assembly 43 can be an existing rotating structure or the roller brush rotating assembly 43 mentioned above. The roller brush mounting base 42, the bearing cover plate 434, and the bearing inner ring seat 432 are secured together by connecting screws 436, enclosing the inner bearing. The outer ring upper end cap 435, the outer ring lower end cap 433, and the roller brush housing 471 are secured together by screws, enclosing the outer bearing. The other end of the swing mechanism 44 is mounted on the outer ring lower end cap 433. When the swing mechanism 44 is in operation, the inner bearing 431 remains stationary, while the outer bearing 431 rotates under the action of the swing mechanism 44. This, in turn, drives the outer ring lower end cap 433 and the roller brush housing 471 surrounding the outer bearing 431 to rotate, ultimately causing the roller brush 474 to swing left or right.

[0157] According to some embodiments of the present application, optionally, as Figure 8As shown, a roller brush dust removal device 48 is provided on the roller brush housing 471. The roller brush dust removal device 48 includes a roller brush dust removal spray rod and a roller brush dust removal nozzle. The roller brush dust removal spray rod is provided with two or more roller brush dust removal nozzles, and high-pressure water is sprayed through the roller brush dust removal nozzles.

[0158] The roller brush dust removal device 48 is provided at the front end of the roller brush housing 471. The purpose of providing the roller brush dust removal device 48 is that the roller brush 474 will raise a lot of dust when cleaning the dust on the road surface, which is easy to pollute the environment. Therefore, in order to reduce the dust, the roller brush dust removal device 48 is provided. The internal water tank or the external high-pressure water passes through the roller brush dust removal spray rod and is then sprayed by the roller brush dust removal nozzle.

[0159] According to some embodiments of the present application, optionally, as Figure 2 and Figure 8 As shown, the roller brush device 4 for road cleaning equipment also includes a roller brush spray rod device 49, which is connected to the roller brush housing 471. The roller brush spray rod device 49 includes a roller brush spray rod and a roller brush nozzle. The roller brush spray rod is provided with two or more roller brush nozzles, and high-pressure water is sprayed onto the ground through the roller brush nozzles.

[0160] The roller brush spray bar device 49 is arranged at the rear end of the roller brush housing 471. When the road surface needs to be deeply cleaned, the internal water tank or the external high-pressure water jet begins to high-pressure wash the road surface through the roller brush nozzle. At this time, the swing device 44 of the roller brush device 4 can be controlled according to the road conditions. When it is necessary to sweep garbage and other stains to the suction device 3 on the right side of the roller brush device 4, the swing device 44 controls the roller brush 474 to swing to the right; when it is necessary to sweep garbage and other stains to the suction device 3 on the left side of the roller brush device 4, the swing device 44 controls the roller brush 474 to swing to the left. By providing the roller brush spray bar device 49 to flush the ground, the road can be further cleaned and the overall cleanliness of the road can be improved.

[0161] According to some embodiments of the present application, optionally, as Figure 8 As shown, the swing device 44 also includes a swing device connecting seat 441 and a swing device connecting member 442. The swing device connecting seat 441 is fixed to the roller brush fixing seat 42. One end of the swing device 44 is fixed to the swing device connecting seat 441, and the other end of the swing device 44 is connected to one end of the swing device connecting member 442. The other end of the swing device connecting member 442 is fixed to the outer ring lower end cover 433.

[0162] One end of the swing mechanism 44 is fixed to the roller brush fixing base 42 via a swing mechanism connecting base 441, and the other end of the swing mechanism 44 is connected to a swing mechanism connecting member 442 via a Y-shaped joint. The swing mechanism connecting member 442 is further fixed to the outer ring lower end cover 433 via bolts. The swing mechanism 44 drives the roller brush housing 471 to rotate via the swing mechanism connecting member 442, thereby pushing the roller brush 474 to swing left or right.

[0163] According to some embodiments of the present application, optionally, as Figure 3 and Figure 8 As shown, the roller brush device 4 for road cleaning equipment further includes a roller brush baffle 46 , which is disposed on a roller brush housing 471 . The roller brush baffle 46 is used to prevent garbage on the roller brush 474 from being lost.

[0164] The purpose of providing the roller brush baffle 46 is to prevent some garbage from being lost during the process of the roller brush 474 sweeping the garbage into the suction device 3. Therefore, to reduce the rate of garbage loss, the roller brush housing 471 is provided with a roller brush baffle 46 on the side away from the suction device 3. Thus, when the roller brush 474 sweeps the garbage into the suction device 3, even if some garbage is lost, it will be blocked by the roller brush baffle 46, thereby reducing the rate of garbage loss.

[0165] According to some embodiments of the present application, optionally, as Figure 8 As shown, the roller brush assembly 47 also includes swing arms 472, which are mounted on either side of a roller brush housing 471. A roller brush motor 473 is mounted on the swing arms 472 and connected to the roller brush. The roller brush motor 473 is used to drive the roller brush 474. The roller brush device 4 for road cleaning equipment also includes a roller brush lifting device 45. One end of the roller brush lifting device 45 is fixed to either side of the roller brush housing 471, and the other end of the roller brush lifting device 45 is connected to the swing arms 472. The roller brush lifting device 45 is used to raise or lower the roller brush 474 relative to the ground.

[0166] One end of the swing arm 472 is fixed to the roller brush housing 471 via a rotating shaft, and the roller brush housing 471 covers the roller brush 474. A roller brush motor 473 is provided on the swing arm 472, and one end of the roller brush motor 473 is connected to the roller brush 474. Under the action of the roller brush motor 473, the roller brush 474 operates. In order to control the height of the roller brush 474 relative to the ground, a roller brush lifting device 45 is provided. One end of the roller brush lifting device 45 is fixed to both sides of the roller brush housing 471, and the other end of the roller brush lifting device 45 is provided on the swing arm 472 via a Y-shaped joint. Since the roller brush motor 473 on the swing arm 472 is connected to the roller brush 474, when the swing arm 472 is lifted by the roller brush lifting device 45, the roller brush 474 is also lifted. Under the action of the roller brush lifting device 45, the swing arm 472 rotates clockwise or counterclockwise around the rotation axis connected to the roller brush housing 471, thereby driving the roller brush 474 to descend or rise relative to the ground.

[0167] According to some embodiments of the present application, optionally, the swing device 44 and the roller brush lifting device 45 are oil cylinders or air cylinders.

[0168] Both the swing mechanism 44 and the roller brush lifting mechanism 45 have piston rods. When the piston rod of the swing mechanism 44 extends, it drives the roller brush rotating assembly 43 to rotate counterclockwise, tilting the roller brush 474 to the left. When the piston rod of the swing mechanism 44 contracts, it drives the roller brush rotating assembly 43 to rotate clockwise, tilting the roller brush 474 to the right. Specifically, when the piston rod of the swing mechanism 44 extends or contracts, the swing mechanism connector 442 connected to the other end of the piston rod, under the action of the outer bearing 431, drives the entire roller brush assembly 47 to rotate counterclockwise or clockwise, tilting the roller brush 474 to the left or right. When the piston rod of the roller brush lifting mechanism 45 extends, the swing arm 472 rotates clockwise about the rotation axis connected to the roller brush housing 471, lowering the roller brush 474 relative to the ground. When the piston rod of the roller brush lifting mechanism 45 contracts, the swing arm 472 rotates counterclockwise about the rotation axis connected to the roller brush housing 471, raising the roller brush 474 relative to the ground.

[0169] According to some embodiments of the present application, optionally, as Figure 8 As shown, the roller brush assembly 47 also includes a swing arm connecting sleeve 475, a swing arm connecting shaft 476, an elastic member 477, and a roller brush adjustment nut 478. The swing arm connecting sleeve 475 is fixed to both sides of the roller brush housing 471, and a swing arm connecting hole is defined in the swing arm connecting sleeve 475. One end of the swing arm connecting shaft 476 is mounted on the swing arm member 472, and the other end of the swing arm connecting shaft 476 extends through the swing arm connecting hole. The swing arm connecting shaft 476 is sequentially sleeved with an elastic member 477 and a roller brush adjustment nut 478 above the swing arm connecting sleeve 475. The roller brush adjustment nut 478 adjusts the elastic force of the elastic member 477 to adjust the height of the roller brush 474.

[0170] The swing arm connecting shaft 476 is a graduated thread, the elastic member 477 is a compression spring, and the roller brush adjustment nut 478 is a double nut. The swing connecting sleeve is fixed to both ends of the roller brush housing 471. The swing arm connecting shaft 476 is connected to the swing arm member 472 via a ball joint and passes through the swing connecting sleeve. The compression spring is mounted on the swing arm connecting shaft 476 and sandwiched between the double nut and the swing connecting sleeve. It is used to control the downward movement of the roller brush 474. Because the road cleaning equipment requires debugging of the roller brush device 4 before use, during debugging, air is released through port A of the cylinder of the suction lifting device 39. Due to the action of gravity, the roller brush 474 and the components on which it is mounted are in a free-falling state around the rotation axis. At this time, the bristles of the roller brush 474 are compressed, deformed, and bent against the ground due to the gravity of the roller brush 474 and the components on which it is mounted. As the double nut is continuously adjusted downward, the roller brush 474 is subjected to the outward force of the compression spring. Continue adjusting the double nut downward until the compression spring is compressed to a certain degree, where the spring force exceeds the downward force exerted by the roller brush 474 and its mounting. Under the action of the spring force, the roller brush 474 rises around its axis of rotation to find a new equilibrium point, reducing its own force on the ground. When the clearance between the bristles of the roller brush 474 and the ground is 5 mm, stop adjusting the double nut. At this point, the spring force is approximately equal to the weight of the roller brush 474 and its accessories, minus the force exerted by the roller brush 474 on the ground, thus reaching a new equilibrium point.

[0171] According to some embodiments of the present application, optionally, as Figure 10 and Figure 11 As shown, the suction device 3 includes a suction bracket 31, a suction seat 32, a suction opening and closing device 33, and a suction connection assembly. The suction seat 32 is fixed to the suction connection assembly, which is hinged to the suction bracket 31. One end of the suction opening and closing device 33 is fixed to the suction bracket 31, and the other end of the suction opening and closing device 33 is connected to the suction connection assembly. The suction opening and closing device 33 is used to drive the suction bracket 32 ​​to rotate clockwise or counterclockwise about the hinge point, thereby raising or lowering the suction bracket 32 ​​relative to the ground.

[0172] The suction bracket 31 is connected to the connecting frame 2 via the suction bracket 31 rotating shaft, and the suction seat 32 is fixed to the suction bracket 31 via the suction connection assembly. The height of the suction seat 32 relative to the ground can be controlled by the suction opening and closing device 33. The suction opening and closing device 33 can be set one or more. Figure 11As shown, when large garbage needs to be sucked out, the suction opening and closing device 33 causes the suction seat 32 to rotate clockwise around the hinge point between the suction connection assembly and the suction bracket 31, raising the suction seat 32 relative to the ground. Specifically, the height of the suction seat 32 above the ground (length a) is greater than the size of the suction port opening (length b). This ensures that large garbage is sucked out of the device 3 due to the increased suction port height, increasing the suction range and allowing the large garbage to be sucked out under the strong negative pressure. When small garbage needs to be sucked out, the suction opening and closing device 33 causes the suction seat 32 to rotate counterclockwise around the hinge point between the suction connection assembly and the suction bracket 31, lowering the suction seat 32 relative to the ground. Flexible control of the suction port height above the ground ensures that garbage of varying sizes can be sucked out by the suction device 3.

[0173] According to some embodiments of the present application, optionally, in combination with Figure 12 The suction connection assembly includes a suction connection piece 341, a suction fixing bracket 342, and two suction lugs 343. The suction seat 32 is fixed to the suction fixing bracket 342. The other end of the suction opening and closing device 33 is connected to one end of the suction connection piece 341, and the other ends of the two suction connection pieces 341 are attached to the suction fixing bracket 342. One end of the two suction lugs 343 is attached to the suction fixing bracket 342, and the other end of the suction lugs 343 is hinged to the suction bracket 31.

[0174] Among them, the suction connection assembly includes a suction connection piece 341, and the other end of the suction opening and closing device 33 is connected to the suction connection piece 341 through a Y-type joint. One end of the suction connection piece 341 is bent toward the suction opening and closing device 33, and the other end of the suction connection piece 341 is vertically arranged on the suction fixed bracket 342. The suction fixed bracket 342 is fixed to the suction seat 32 through the extension portion, that is, the suction seat 32 is fixed to the suction fixed bracket 342. The two sides of the suction fixed bracket 342 are hinged to the suction bracket 31 through the suction ear plates 343. One end of the two suction ear plates 343 is engaged with the suction fixed bracket 342, and the other end of the two suction ear plates 343 is hinged to the two sides of the suction bracket 31. In this way, the suction seat 32 and the suction bracket 31 are connected through the suction assembly. The suction opening and closing device 33 drives the suction connection piece 341 to rotate, which in turn drives the suction fixing bracket 342 to rotate, and finally drives the suction lug plate 343 to rotate clockwise or counterclockwise around the suction bracket 31. In this way, the suction seat 32 connected to the suction fixing bracket 342 is affected by the suction lug plate 343, and its height from the ground increases or decreases.

[0175] According to some embodiments of the present application, optionally, as Figure 12As shown, the suction device 3 for road cleaning equipment further includes a suction spray rod device 36, which is connected to a suction fixing bracket 342. The suction spray rod device 36 includes a suction spray rod and a suction nozzle. The suction spray rod is provided with two or more suction nozzles, and high-pressure water is sprayed onto the ground through the suction nozzles.

[0176] The suction fixing bracket 342 is connected to the suction boom device 36 via a pipe clamp 361. The flushing water pressure of the suction boom device 36 is over 20 MPa. If the ground is covered with hardened mud and dust, or impurities with strong adhesion to the ground, suction alone may not be able to completely remove them. In such cases, the suction boom device 36 is required. After the suction nozzle of the suction boom device 36 performs high-pressure flushing, suction is then applied through the suction device 3 to achieve a deep clean of the road surface.

[0177] According to some embodiments of the present application, optionally, as Figure 13 and Figure 14 As shown, the suction device 3 for road cleaning equipment also includes a suction adjustment assembly 35, which includes a suction adjustment block 351, a suction adjustment bolt 352, and a suction adjustment nut 353. The suction adjustment blocks 351 are provided on both sides of the suction fixing bracket 342. The suction adjustment blocks 351 are provided with suction adjustment holes, and suction adjustment nuts 353 are provided in the suction adjustment holes. The suction adjustment bolts 352 extend through the suction adjustment holes, and the upper end surface of the suction adjustment bolts 352 abuts the lower end surface of the suction bracket 31. The height of the suction seat 32 from the ground is controlled by adjusting the length of the suction adjustment bolts 352 protruding from the suction adjustment blocks 351.

[0178] The suction adjustment hole may be provided with an internal thread, and the suction adjustment bolt 352 may be provided with an external thread. The suction adjustment bolt 352 extends through the through hole, and only one suction adjustment nut 353 may be provided to be fixed to the suction adjustment block 351. If the suction adjustment hole is not provided with an internal thread, the suction adjustment bolt 352 needs to be provided with a suction adjustment nut 353 on each of the upper and lower sides of the suction adjustment block 351.

[0179] like Figure 14 As shown, the suction adjustment block 351 is set on both sides of the suction fixing bracket 342, the suction adjustment bolt 352 is screwed on the suction adjustment block 351, and is locked and fixed on the suction adjustment block 351 by the suction adjustment nut 353. The upper end surface of the suction adjustment bolt 352 is against the lower end surface of the suction bracket 31, so that the size of the suction port can be controlled by tightening the adjustment bolt. When there is a lot of garbage on the road, especially in autumn when leaves are spread flat on both sides of the road, and the vehicle has to operate at high speed, the height of the suction port from the ground can be controlled by adjusting the suction adjustment bolt 352. Combined with Figure 15 and Figure 16As shown, when the suction adjustment bolt 352 is tightened upward (counterclockwise), the bolt head presses against the lower end surface of the suction bracket 31, causing the suction seat 32 to rotate slightly counterclockwise about the hinge point where the suction ear plate 343 is hinged to the suction bracket 31, thereby raising the suction port above the ground. This allows for the removal of more road-distributed trash, such as fallen leaves. Conversely, when the adjustment bolt is tightened downward (clockwise), the suction port is lowered above the ground, creating a high suction force for efficiently cleaning small trash such as road dust and small stones.

[0180] According to some embodiments of the present application, optionally, as Figure 10 As shown, the suction device 3 for the road cleaning equipment also includes a suction lifting device 39. One end of the suction lifting device 39 is fixed to the chassis frame 1 of the road cleaning equipment, and the other end of the suction lifting device 39 is connected to the suction support 31. The suction lifting device 39 is used to drive the suction support 31 to rise or fall relative to the ground.

[0181] The other end of the suction lifting device 39 is connected to the suction support 31 via a steel cable. The suction lifting device 39 is used to move the suction support 31 up and down around the suction support 31 pivot axis, which is hingedly connected to the connecting frame 2, thereby raising or lowering the entire suction support 31 relative to the ground. When the suction base 32 is required for suction, the suction lifting device 39 controls the base 32 to descend; when suction is not required, the suction base 32 is raised, allowing for flexible operation and adaptability to different road conditions.

[0182] According to some embodiments of the present application, optionally, as Figure 10 As shown, the suction opening and closing device 33 and the suction lifting device 39 are oil cylinders or air cylinders.

[0183] Specifically, the suction opening and closing device 33 and the suction lifting device 39 both have piston rods. The tail end of the cylinder of the suction opening and closing device 33 is fixed on the suction bracket 31, and the other end of the suction opening and closing device 33 is set on the suction connecting piece 341. Figure 11 As shown, when large garbage needs to be sucked out, the piston rod of the suction opening and closing device 33 extends, causing the suction seat 32 to rotate clockwise around the hinge point between the suction lug 343 and the suction bracket 31, raising the suction seat 32 relative to the ground. When small garbage needs to be sucked out, the piston rod of the suction opening and closing device 33 retracts, causing the suction seat 32 to rotate counterclockwise around the hinge point between the suction lug 343 and the suction bracket 31, lowering the suction seat 32 relative to the ground.

[0184] The tail of the cylinder of the suction and lifting device 39 is fixed to the connecting frame 2 through a cylinder seat, and the piston rod of the suction and lifting device 39 is connected to the suction bracket 31 through a steel wire rope.

[0185] According to some embodiments of the present application, optionally, as Figure 10 As shown, the suction seat 32 is provided with a suction dust removal device 37 on the side away from the suction connection assembly. The suction dust removal device 37 includes a suction dust removal spray bar and a suction dust removal nozzle. The suction dust removal spray bar is provided with two or more suction dust removal nozzles, and high-pressure water is sprayed through the suction dust removal nozzles.

[0186] The suction dust removal device 37 is mounted at the front end of the suction base 32. When the dust and garbage swept by the sweeping disc 5261 and the roller brush 474 are relatively dry, if the filtration system is not perfect after high-pressure suction, the dust will pass through the filtration system to the fan and then out through the fan outlet, causing secondary dust pollution. Therefore, the suction dust removal device 37 is installed here to deal with most of the dust. In this way, the dust is moistened by the suction dust removal device 37 and then sucked into the suction hose 6 through the suction port, thereby completing the garbage cleaning and avoiding air pollution.

[0187] According to some embodiments of the present application, the suction dust removal spray rod is optionally further provided with a suction water expelling device 38. The suction water expelling device 38 includes a suction water expelling spray rod, a suction water expelling nozzle, a suction water expelling cylinder, a suction water expelling cylinder seat, and a suction water expelling connecting piece, wherein the suction water expelling cylinder seat is hingedly connected to the suction water expelling connecting piece. One end of the suction water expelling cylinder is fixed to the suction water expelling cylinder seat, and the other end of the suction water expelling cylinder is connected to the suction water expelling connecting piece. One end of the suction water expelling spray rod is fixed to the suction water expelling connecting piece, and the suction water expelling spray rod is provided with two or more suction water expelling nozzles. The extension or contraction of the suction water expelling cylinder drives the suction water expelling piece to rotate clockwise or counterclockwise relative to the suction water expelling cylinder seat, causing the suction water expelling spray rod to retract upward or open outward.

[0188] The suction and water-removing device 38 is mounted on the suction and dust-removing device 37. When performing high-pressure flushing deep cleaning, the suction and water-removing cylinder extends, driving the suction and water-removing member to rotate clockwise relative to the suction and water-removing cylinder base. The suction and water-removing spray rod opens, and the internal water tank and the external high-pressure water flow through the suction and water-removing nozzle of the suction and water-removing spray rod to flush the ground, flushing away garbage on both sides of the road, thereby making the road cleaner. When the road cleaning is completed, the suction and water-removing cylinder extends, driving the suction and water-removing member to rotate counterclockwise relative to the suction and water-removing cylinder base, and the suction and water-removing spray rod retracts upward. As a preferred embodiment, the suction and water-removing device 38 also includes a tension spring, one end of which is mounted on the suction and water-removing spray rod, and the other end of which is mounted on the suction and water-removing connecting member. The tension spring is used to prevent the suction and water-removing device 38 from being damaged by improper operation during operation. The tension spring also prevents the device from being damaged and the associated suction device 3 from being damaged by the suction and water-removing device 38.

[0189] According to some embodiments of the present application, optionally, as Figure 13As shown, a suction port is provided at the bottom of the suction seat 32, and suction side plates 321 are provided on both sides of the suction port. A suction baffle 322 is provided between the suction side plates 321 of the suction seat 32, and when the suction side plates 321 touch the ground, the suction baffle 322 is at a certain height from the ground.

[0190] The suction port will inevitably encounter various road conditions during the suction process. Therefore, in order to protect the suction port, suction side panels 321 are provided on both sides of the suction port and a suction baffle 322 is provided between the suction sides. The suction side panels 321 can protect the suction port on the one hand, and on the other hand, they can also prevent garbage from being lost to a certain extent. The suction baffle 322 is set at a height of less than 3 cm and is made of plastic. The sweeping device 5 allows the cleaned garbage to enter the suction port through the suction baffle 322, thereby protecting the suction port to a certain extent and preventing it from being damaged during use.

[0191] In actual use, when the road sweeping equipment is not in use, the piston rods of the sweeping disc retracting and extending devices 51 on either side of the chassis are retracted, as is the piston rod of the sweeping disc lifting device 521. This allows the entire sweeping disc 5261 to rest within the width of the vehicle at either end of the chassis. The suction lifting device 39 on the suction device 3 is also retracted, allowing the suction device 3 to be suspended from the chassis frame 1, ensuring that the suction device 3 does not extend beyond the vehicle width. Because both the suction device 3 and the sweeping disc 5 are in an upwardly raised position, and because the first sweeping disc baffle 531 is secured to the sweeping disc swing arm connector 525, and the second sweeping disc baffle 532 is mounted on the suction bracket 31 of the suction device 3, when the suction device 3 and the sweeping disc 5 are raised, the first and second sweeping disc baffles 531, 532 are lifted with them. This prevents friction between the first and second sweeping disc baffles 531, 532 and the ground during high-speed transit, thereby increasing their service life. For the roller brush device 4, the roller brush lifting device 45 is also in a retracted state, and the roller brush 474 is lifted away from the ground.

[0192] When the road sweeping equipment is needed to perform a deep clean of the road surface, the piston rod of the sweeping disc retracting device 51 is extended, and the piston rod of the sweeping disc lifting device 521 is also extended. The sweeping disc 5261 then extends outward from the vehicle and descends, the brush of the sweeping disc 5261 contacting the ground, and the first sweeping disc baffle 531 of the sweeping disc assembly 52 also contacting the ground. After the piston rod of the suction lifting device 39 is extended, the suction device 3 contacts the ground. Because the second sweeping disc baffle 532 is hung on the suction device 3, when the suction device 3 falls to the ground, the second sweeping disc baffle 532 also contacts the ground. The roller brush 474 of the roller brush device 4 falls to the ground due to its own gravity and the extension of the piston rod of the roller brush lifting device 45.

[0193] When the sweeping disc 5261, the roller brush 474, and the suction device 3 are in place, the sweeping disc motor on the sweeping disc 5261 and the roller brush motor 473 on the roller brush 474 start to rotate, the onboard fan starts, and the suction device 3 begins high-negative-pressure suction. While the vehicle is in operation, the suction spray bar device 36 and the roller brush spray bar device 49 are opened, and high-pressure water jets begin to flush the road surface through fan-shaped nozzles, and the cleaning and sweeping operation begins. At this time, the roller brush device 4 can be tilted left or right by the swing device 44 according to the road conditions. When garbage and other stains are to be pushed in front of the suction device 3 on the right, the right suction device 3 is allowed to perform strong suction, and the piston rod of the swing device 44 is retracted.

[0194] During the operation of the vehicle, all the dirt and stains swept by the vehicle will be driven to the sides and forcefully sucked into the vehicle's trash bin by the suction devices 3 on both sides. Therefore, the suction spray rod device 36 cooperates with the left and right sweeping discs 5261 to operate. After the sweeping discs 5261 sweep the dust and compacted dust on the road surface, the suction spray rod device 36 flushes with strong water pressure and drives the dirt and mud to the front of the suction device 3. The first sweeping disc baffle 531 and the second sweeping disc baffle 532 next to the sweeping disc 5261 guide the swept garbage and stains to the front of the suction device 3, allowing the suction device 3 to suction strongly and prevent the dirt from splashing. During the cleaning process, when the suction device 3 needs to suck up large garbage such as mineral water bottles and beverage bottles, the piston rod of the suction opening and closing device 33 extends, and the suction port is raised above the ground. After the large garbage is sucked in, the piston rod of the suction opening and closing device 33 retracts, and the suction port is restored to its original height above the ground, and the operation continues. When the operation is completed, the entire vehicle returns to the transfer state.

[0195] When the road sweeping equipment is needed to clean the road surface, the piston rod of the sweeping disc retracting device 51 extends, and the piston rod of the sweeping disc lifting device 521 also extends. At this time, the sweeping disc 5261 extends outward from the vehicle and descends, and the brush of the sweeping disc 5261 contacts the ground. The first sweeping disc baffle 531 of the sweeping disc assembly 52 also contacts the ground. After the piston rod of the suction lifting device 39 extends, the suction device 3 contacts the ground. Because the second sweeping disc baffle 532 is hung on the suction device 3, when the suction device 3 falls to the ground, the second sweeping disc baffle 532 also contacts the ground. The roller brush 474 of the roller brush device 4 falls to the ground due to its own gravity and the extension of the piston rod of the roller brush lifting device 45. After the sweeping disc 5261, the roller brush 474, and the suction device 3 have landed, the sweeping disc motor on the sweeping disc 5261 and the roller brush motor 473 on the roller brush 474 begin to rotate, the onboard fan is started, the suction device 3 begins high-negative-pressure suction, and at the same time, the suction dust removal device 37, the roller brush dust removal device 48, and the sweeping disc dust removal device 54 are turned on, and the fan-shaped dust removal nozzles on each dust removal spray rod begin to spray. A dust removal device is set on the side of the sweeping disc 5261 because when the sweeping disc 5261 is sweeping the road, there will be a certain amount of dust. To avoid the spread of dust, it is necessary to kill the dust at the source. The dust removal device is set at the suction port because the suction speed is high due to the negative pressure during the suction process. If the dirt and dust sucked in are not moistened here, dust smoke will come out at the fan outlet, causing secondary air pollution. When the operation is completed, the whole vehicle returns to the transfer state.

[0196] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, based on the innovative concept of the present invention, changes and modifications to the embodiments described herein, or equivalent structural or equivalent process transformations made using the contents of the present invention's specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields, are all included in the scope of patent protection of the present invention.

Claims

1. A road cleaning device, characterized in that: It includes a chassis frame, a suction device, a roller brush device and a sweeping device; The sweeping disc device and the suction device are provided on both sides of the chassis frame, and the sweeping disc device is used to sweep the materials on both sides of the road to the suction device; The roller brush device is provided at the lower end of the chassis frame, and the roller brush device is used to sweep the materials in the middle of the road to the suction device; The suction device is provided with a suction spray rod device and a suction dust removal device, and the roller brush device is provided with a roller brush spray rod device and a roller brush dust removal device; The suction spray bar device and the roller brush spray bar device are used to wash the road surface, and the suction dust removal device and the roller brush dust removal device are used to remove dust from the road surface; The suction device includes a suction bracket, a suction seat, a suction opening and closing device, and a suction connection assembly; The suction seat is fixed on the suction connection assembly, and the suction connection assembly is hinged to the suction bracket; One end of the suction opening and closing device is fixed to the suction bracket, and the other end of the suction opening and closing device is connected to the suction connection assembly; The suction opening and closing device is used to drive the suction seat to rotate clockwise or counterclockwise around the hinge point, so that the height of the suction seat relative to the ground becomes higher or lower.

2. The road cleaning equipment according to claim 1, characterized in that: The road cleaning equipment further comprises a connecting frame, wherein the connecting frame is fixed to the chassis frame; The sweeping disc device includes a sweeping disc telescopic device and a sweeping disc assembly. One end of the sweeping disc telescopic device is fixed on the connecting frame, and the other end of the sweeping disc telescopic device is connected to the sweeping disc assembly. The sweeping disc telescopic device is used to drive the sweeping disc assembly to rotate clockwise or counterclockwise around the connection point.

3. The road cleaning equipment according to claim 2, characterized in that: The sweeping disc assembly includes a sweeping disc rotating shaft fixing member, a sweeping disc rotating shaft and a sweeping disc rotating shaft connecting sleeve; The sweeping disc rotating shaft fixing part is fixed on the connecting frame, and the sweeping disc rotating shaft connecting sleeve is connected to the sweeping disc rotating shaft fixing part through the sweeping disc rotating shaft; The other end of the sweeping disc telescopic device is connected to the sweeping disc rotating shaft connecting sleeve, and the sweeping disc telescopic device is used to drive the sweeping disc rotating shaft connecting sleeve to rotate clockwise or counterclockwise around the sweeping disc rotating shaft.

4. The road cleaning equipment according to claim 3, characterized in that: The sweeping disc telescopic device also includes a telescopic limit screw and a telescopic limit nut; The sweeping disc rotating shaft connecting sleeve is provided with a telescopic limiting hole at the sweeping disc rotating shaft, and the telescopic limiting nut is provided at the telescopic limiting hole; The telescopic limit screw passes through the telescopic limit nut and the telescopic limit hole. The telescopic limit screw is used to adjust the clockwise rotation angle of the sweeping disc shaft connecting sleeve around the sweeping disc shaft by adjusting the length of the protruding sweeping disc shaft.

5. The road cleaning equipment according to claim 3, characterized in that: The sweeping disc assembly further comprises a sweeping disc lifting device, a sweeping disc member and a sweeping disc swing arm connecting member, wherein the sweeping disc member comprises a sweeping disc; One end of the sweeping disc lifting device is fixed to the upper end of the sweeping disc rotating shaft connecting sleeve, and the other end of the sweeping disc lifting device is connected to the sweeping disc member; One end of the sweeping disc swing arm connecting piece is hinged to the lower end of the sweeping disc rotating shaft connecting sleeve, and the other end of the sweeping disc swing arm connecting piece is connected to the sweeping disc member; The sweeping disc lifting device is used to drive the sweeping disc to rise or fall relative to the ground.

6. The road cleaning device according to claim 5, characterized in that: A lifting limit hole is provided below the sweeping disc rotating shaft connecting sleeve, and a lifting limit nut is provided at the lifting limit hole; The lifting limit screw passes through the lifting limit nut and the lifting limit hole. The lifting limit screw is used to adjust the height of the sweeping disc relative to the ground by adjusting the length of the protruding sweeping disc swing arm connecting piece.

7. The road cleaning device according to claim 5, characterized in that: The disk sweeping device further includes a disk sweeping baffle assembly, wherein the disk sweeping baffle assembly includes a first disk sweeping baffle and a second disk sweeping baffle; The first sweeping disc baffle is connected to the sweeping disc swing arm connecting member, and the second sweeping disc baffle is connected to the suction device; The first sweeping disc baffle and the second sweeping disc baffle cooperate to guide the garbage swept by the sweeping disc to the suction device.

8. The road cleaning device according to claim 5, characterized in that: The disk sweeping device further comprises a disk sweeping dust removal device, and the disk sweeping dust removal device is arranged on the disk sweeping member; The disc sweeping dust removal device includes a disc sweeping dust removal spray rod and a disc sweeping dust removal nozzle. The disc sweeping dust removal spray rod is provided with two or more disc sweeping dust removal nozzles, and high-pressure water is sprayed through the disc sweeping dust removal nozzles.

9. The road cleaning equipment according to claim 1, characterized in that: The roller brush device includes a roller brush fixing seat, a roller brush rotating assembly, a roller brush assembly and a swinging device, and the roller brush assembly includes a roller brush; The roller brush fixing seat is fixed on the roller brush rotating assembly, and the roller brush rotating assembly is arranged on the roller brush assembly; One end of the swing device is fixed to the roller brush fixing seat, and the other end of the swing device is connected to the roller brush rotating assembly; The swing device is used to drive the roller brush to rotate clockwise or counterclockwise relative to the roller brush fixing seat through the roller brush rotating assembly.

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