Suction nozzle device of road working vehicle and road working vehicle

Abstract

The utility model discloses a suction nozzle device of road work vehicle and road work vehicle, the suction nozzle device includes suction nozzle body, support roller and mounting subassembly, mounting subassembly includes mounting rack, rotatory seat and connecting leg, support roller is provided connecting leg one end, connecting leg other end is connected with rotatory seat, mounting rack is provided on the suction nozzle body, and the rotatory seat is connected with the rotatory seat. The rotating seat is rotatably arranged on the mounting frame to drive the connecting supporting legs and the supporting rollers to transversely swing, so that the supporting rollers can timely follow the steering direction and are adjusted to a proper angle, sliding friction between the supporting rollers and the ground is effectively prevented, the abrasion speed of the supporting rollers is reduced, and the service life is prolonged; and the frequency of adjusting or replacing the supporting rollers is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to a suction nozzle device of a road operation vehicle and the road operation vehicle. Background Art

[0002] The suction nozzle is a crucial device used on road vehicles for vacuuming and garbage collection. Rollers are typically installed on the nozzle to support it and reduce wear and tear. However, when a road vehicle turns, the rollers cannot adapt to changes in angle and follow the direction of the vehicle. This causes the nozzle to drag against the ground during steering, creating sliding friction. This friction rapidly wears the rollers, shortening their service life and necessitating frequent adjustment or replacement. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the present invention provides a suction nozzle device for a road work vehicle and a road work vehicle, aiming to solve the technical problem that the rollers of the road work vehicle cannot adapt to the angle change in time and follow the turning when turning.

[0004] In order to achieve the above-mentioned object, the present invention provides a suction nozzle device for a road working vehicle, the suction nozzle device comprising:

[0005] nozzle body;

[0006] Support rollers;

[0007] The mounting assembly includes a mounting frame, a rotating seat and a connecting leg. The supporting roller is arranged at one end of the connecting leg, and the other end of the connecting leg is connected to the rotating seat. The mounting frame is arranged on the suction nozzle body, and the rotating seat can be rotatably arranged on the mounting frame to drive the connecting leg and the supporting roller to swing horizontally.

[0008] In an embodiment of the present utility model, the rotating seat includes a rotating column, a rotating plate and an adjusting nut. The rotating column can be rotatably passed through the mounting frame. The adjusting nut is threadedly connected to the rotating column and is located on the upper side of the mounting frame. The rotating plate is arranged at one end of the rotating column, and the rotating plate is connected to the end of the connecting leg away from the supporting roller.

[0009] In an embodiment of the present invention, the rotating seat further comprises a fastening nut, which is threadedly connected to the rotating column. The fastening nut is connected to the upper side of the mounting bracket and is located between the mounting bracket and the adjusting nut.

[0010] In an embodiment of the present utility model, the mounting frame includes a fixed plate and a mounting plate, the fixed plate is connected to the suction nozzle body, the mounting plate is connected to the fixed plate and is bent from the fixed plate toward the direction away from the suction nozzle body, an installation space is enclosed between the fixed plate and the mounting plate, the rotating plate is located in the installation space, the rotating column extends vertically from the rotating plate and can be rotatably passed through the mounting plate, and the adjusting nut is located on the upper side of the mounting plate.

[0011] In an embodiment of the present invention, the fixing plate is vertically extended, and the distance between the rotating column and the fixing plate is adjustable.

[0012] In an embodiment of the utility model, the mounting frame also includes a reinforcing plate, which is arranged in the mounting space and is respectively connected to the fixed plate and the mounting plate. A avoidance bevel is formed on the side of the reinforcing plate facing the rotating plate, and the avoidance bevel is inclined toward the mounting plate in a direction away from the fixed plate.

[0013] In an embodiment of the present utility model, the connecting leg includes a first mounting section, a connecting section and a second mounting section. The first mounting section is connected to the side of the rotating plate facing away from the mounting plate. One end of the connecting section is connected to the first mounting section, and the connecting section is inclined toward the mounting plate in a direction away from the fixed plate. The second mounting section is connected to one end of the connecting section away from the first mounting section, and the support roller is rotatably provided on the second mounting section.

[0014] In an embodiment of the present invention, the rotating seat further comprises an adjusting nut, which is threadedly connected to the rotating column and is located on the upper side of the mounting plate.

[0015] In an embodiment of the present invention, the suction nozzle device also includes a lifting mechanism, the lifting mechanism includes a rocker arm and a drive assembly, one end of the rocker arm is hinged to the frame of the road work vehicle, and the other end of the rocker arm is hinged to the suction nozzle body, the drive assembly includes a lifting drive member, a pulley and a pull rope, the lifting drive member and the pulley are both arranged on the frame, one end of the pull rope is connected to the lifting drive member, the pull rope passes around the pulley and the other end is connected to the rocker arm.

[0016] In an embodiment of the utility model, a first mounting seat is provided on the frame, a second mounting seat is provided on the suction nozzle body, one end of the rocker arm is hinged to the first mounting seat, and the other end of the rocker arm is hinged to the second mounting seat. The lifting mechanism also includes a connecting rod, and the two ends of the connecting rod are respectively hinged to the first mounting seat and the second mounting seat, and the connecting rod is arranged parallel to the rocker arm.

[0017] In order to achieve the above-mentioned object, the present invention further provides a road work vehicle, which includes the suction nozzle device of the road work vehicle described above.

[0018] Through the above technical solution, the suction nozzle device of the road work vehicle and the road work vehicle provided by the embodiment of the utility model have the following beneficial effects:

[0019] The technical scheme of the utility model discloses, the suction nozzle body is installed on the frame of road working vehicle and is used for sucking up garbage and dust, the mounting bracket is connected with the suction nozzle body, the rotary seat is arranged on the mounting bracket and can rotate relative to the mounting bracket, and the two ends of the connecting leg are connected with the rotary seat and the supporting roller respectively one by one corresponding;When the road working vehicle is steering, the suction nozzle body drives the mounting bracket to rotate, the mounting bracket does not directly drag the supporting roller to steer through the connecting leg due to the rotary connection between the mounting bracket and the rotary seat, the rotary cooperation between the mounting bracket and the rotary seat provides buffer time for the angle change of the supporting roller, and the rotary seat can drive the supporting roller to swing transversely through the connecting leg, so that the supporting roller can follow steering in time and be adjusted to the suitable angle, effectively prevent the sliding friction between the supporting roller and the ground, slow down the wear speed of the supporting roller, prolong the service life, and greatly reduce the frequency of supporting roller adjustment or replacement.

[0020] Other features and advantages of the embodiments of the utility model will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the embodiments of the utility model, and constitute a part of the specification, and are used to explain the embodiments of the utility model together with the following specific embodiment, but do not constitute the limitation to the embodiments of the utility model.The ordinary skilled in the art can also obtain other drawings according to the structure shown in these drawings without the creative labor, and in the drawings, the same reference numerals represent the same elements:

[0022] Figure 1 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in one view angle;

[0023] Figure 2 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in another view angle; Figure 1 It is the enlarged schematic diagram of A area in the figure;

[0024] Figure 3 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in another view angle;

[0025] Figure 4 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in another view angle; Figure 3 It is the enlarged schematic diagram of B area in the figure;

[0026] Figure 5 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in another view angle;

[0027] Figure 6 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in another view angle;

[0028] Figure 7 It is the structural schematic diagram of the suction nozzle device according to an embodiment of the utility model in another view angle;

[0029] Figure 8 It is a structural schematic diagram of the lifting mechanism in another position in the suction nozzle device according to one embodiment of the present utility model.

[0030] Description of Reference Numerals

[0031] 10 nozzle body 50 connecting legs

[0032] 20 Support roller 51 First installation section

[0033] 30 mounting bracket 52 connecting section

[0034] 31 Fixing plate 53 Second installation section

[0035] 32 Mounting plate 60 Lifting mechanism

[0036] 33 Installation space 61 Rocker

[0037] 34 reinforcement plate 62 lifting drive member

[0038] 341 Avoiding the Oblique Edge 63 Pulley

[0039] 40 rotating seat 64 pull rope

[0040] 41 Rotating column 65 First mounting seat

[0041] 42 Rotating plate 66 Second mounting seat

[0042] 43 Adjusting nut 67 Linking rod

[0043] 44 Fastening nut DETAILED DESCRIPTION

[0044] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0045] The suction nozzle device of a road working vehicle of the present invention will be described below with reference to the accompanying drawings.

[0046] like Figures 1 to 4 As shown, the utility model provides a suction nozzle device for a road work vehicle, which includes a suction nozzle body 10, a supporting roller 20 and a mounting assembly. The mounting assembly includes a mounting frame 30, a rotating seat 40 and a connecting leg 50. The supporting roller 20 is rotatably provided at one end of the connecting leg 50, and the other end of the connecting leg 50 is connected to the rotating seat 40. The mounting frame 30 is provided on the suction nozzle body 10, and the rotating seat 40 is rotatably provided on the mounting frame 30 to drive the connecting leg 50 and the supporting roller 20 to swing laterally.

[0047] Specifically, the suction nozzle body 10 is mounted on the frame of the road working vehicle and used for sucking garbage and dust, the mounting frame 30 is connected with the rear end of the suction nozzle body 10, the rotating seat 40 is arranged on the mounting frame 30 and can rotate relative to the mounting frame 30, and the two ends of the connecting leg 50 are connected with the rotating seat 40 and the supporting roller 20 respectively; when the road working vehicle is steering, the suction nozzle body 10 drives the mounting frame 30 to rotate, and since the mounting frame 30 is rotationally connected with the rotating seat 40, the mounting frame 30 cannot directly drive the supporting roller 20 to steer through the connecting leg 50, the rotating cooperation between the mounting frame 30 and the rotating seat 40 provides a buffering time for the angle change of the supporting roller 20, and the rotating seat 40 can drive the supporting roller 20 to swing in the left and right directions through the connecting leg 50, so that the supporting roller 20 can timely follow the steering and be adjusted to a suitable angle, the sliding friction between the supporting roller 20 and the ground is effectively prevented, the abrasion speed of the supporting roller 20 is slowed down, the service life is prolonged, and the frequency of adjustment or replacement of the supporting roller 20 is greatly reduced.

[0048] In the embodiment of the utility model, the rotating seat 40 includes rotating column 41, rotating plate 42 and adjusting nut 43, rotating column 41 can rotate and be arranged on mounting frame 30, adjusting nut 43 is connected with rotating column 41 and is located on the upside of mounting frame 30, rotating plate 42 is arranged on one end of rotating column 41, and rotating plate 42 is connected with the end of connecting leg 50 away from supporting roller 20.

[0049] As shown in Figure 2 And Figure 4 Rotating column 41 passes through mounting frame 30 and can rotate relative to mounting frame 30, rotating plate 42 is connected with the lower end of rotating column 41, one end of connecting leg 50 is connected on the lower side of rotating plate 42, and supporting roller 20 is rotatably connected on the other end of connecting leg 50; when the road working vehicle is steering, rotating column 41 drives rotating plate 42 to rotate, so that rotating plate 42 drives connecting leg 50 and supporting roller 20 to swing in turn, supporting roller 20 can follow the steering and adaptively adjust the angle according to the driving direction of the road working vehicle, and the abrasion of supporting roller 20 by the ground is reduced. Furthermore, external threads are formed on rotating column 41, rotating column 41 can adopt the stud in the prior art, adjusting nut 43 is sleeved on rotating column 41 and is threadedly connected with rotating column 41, and adjusting nut 43 abuts against the upper side of mounting frame 30, the length of rotating column 41 extending to the upper side of mounting plate 32 can be adjusted by rotating adjusting nut 43, so that the height of supporting roller 20 relative to suction nozzle body 10 and the ground clearance of suction nozzle body 10 can be adjusted, and the adjustment is flexible and convenient.

[0050] In the embodiment of the present invention, the rotating seat 40 further includes a fastening nut 44 , which is threadedly connected to the rotating column 41 . The fastening nut 44 is connected to the upper side of the mounting bracket 30 and is located between the mounting bracket 30 and the adjusting nut 43 .

[0051] like Figure 2 and Figure 4 As shown, the fastening nut 44 is connected to the upper side of the mounting bracket 30, and the adjusting nut 43 abuts against the upper side of the fastening nut. The fastening nut 44 and the adjusting nut 43 are both used for the rotating column 41 to pass through and are threadedly connected to the rotating column 41. By rotating the adjusting nut 43, the protruding length of the rotating column 41 can be adjusted, thereby adjusting the height of the support roller 20 relative to the suction nozzle body 10 and the height of the suction nozzle body 10 from the ground. The adjustment is flexible and convenient, and the stacking arrangement of the fastening nut 44 and the adjusting nut 43 can reduce vibration, prevent the rotation column 41 from being loosened with the adjusting nut 43 and the fastening nut 44, and increase the connection strength.

[0052] In an embodiment of the present utility model, the mounting frame 30 includes a fixing plate 31 and a mounting plate 32. The fixing plate 31 is connected to the suction nozzle body 10. The mounting plate 32 is connected to the fixing plate 31 and is bent from the fixing plate 31 in a direction away from the suction nozzle body 10. An installation space 33 is formed between the fixing plate 31 and the mounting plate 32. The rotating plate 42 is located in the installation space 33. The rotating column 41 extends vertically from the rotating plate 42 and can be rotatably passed through the mounting plate 32. The adjusting nut 43 is located on the upper side of the mounting plate 32.

[0053] like Figure 2 、 Figure 4 and Figure 6 As shown, the fixed plate 31 is connected to the rear end of the suction nozzle body 10, the mounting plate 32 is connected to the upper end of the fixed plate 31, and the mounting plate 32 is extended in the front-to-back direction. The fixed plate 31 and the mounting plate 32 form an installation space 33 for accommodating the rotating plate 42. The lower end of the rotating column 41 is connected to the rotating plate 42. The rotating column 41 extends upward from the rotating plate 42 and can rotatably pass through the mounting plate 32. The structural arrangement is compact, which improves space utilization; and the fixed plate 31 can be welded to the suction nozzle body 10 to further improve the connection stability.

[0054] Furthermore, if Figure 5 and Figure 6As shown, the fixed plate 31 is extended vertically, and the rotating column 41 drives the rotating plate 42 to rotate. The fixed plate 31 can abut against the rotating plate 42 to limit the rotation angle of the rotating plate 42, thereby limiting the swing amplitude of the connecting leg 50 and the support roller 20, ensuring that the support roller 20 can roll in the same direction as the driving direction of the road work vehicle, further preventing sliding friction between the support roller 20 and the ground; and the distance between the rotating column 41 and the fixed plate 31 is adjustable. The fixed plate 31 abuts against the rotating plate 42 to limit the rotation angle of the rotating plate 42, and the distance between the rotating column 41 and the fixed plate 31 is adjusted to adjust the rotation angle of the rotating plate 42 relative to the fixed plate 31, thereby achieving adjustment of the swing amplitude of the connecting leg 50 and the support roller 20, and the adjustment is flexible and convenient.

[0055] In one embodiment of the present invention, a mounting hole is provided on the mounting plate 32 for the rotating column 41 to pass through. By adjusting the position of the mounting hole relative to the fixed plate 31, the distance between the rotating column 41 and the fixed plate 31 can be adjusted, and the swing amplitude of the connecting leg 50 and the support roller 20 can be adjusted.

[0056] In another embodiment of the present invention, a plurality of mounting holes are provided on the mounting plate 32, and the plurality of mounting holes are spaced apart in the front-to-back direction. The rotating column 41 can pass through any mounting hole and be rotatably connected to the mounting plate 32, thereby adjusting the distance between the rotating column 41 and the fixed plate 31, and further adjusting the swing amplitude of the connecting leg 50 and the support roller 20.

[0057] In another embodiment of the present invention, a waist-shaped hole is provided on the mounting plate 32 for the rotating column 41 to pass through, and the waist-shaped hole is extended in the front-to-back direction. The rotating column 41 can be moved to any position along the extension direction of the waist-shaped hole and can be rotatably connected to the mounting plate 32, thereby adjusting the distance between the rotating column 41 and the fixed plate 31, and then adjusting the swing amplitude of the connecting leg 50 and the support roller 20.

[0058] Furthermore, the mounting frame 30 further includes a reinforcing plate 34, which is disposed in the mounting space 33 and is connected to the fixing plate 31 and the mounting plate 32 respectively. A side of the reinforcing plate 34 facing the rotating plate 42 is formed with an avoidance bevel 341, which is inclined away from the fixing plate 31 and toward the mounting plate 32. Figure 2 、 Figure 4 and Figure 6 As shown, the reinforcing plate 34 is arranged between the fixing plate 31 and the mounting plate 32 to strengthen the supporting strength of the mounting plate 32, thereby improving the structural stability. An avoidance bevel 341 is formed on the reinforcing plate 34, and the avoidance bevel 341 is inclined upward from the front to the rear, thereby playing the role of avoiding the installation space 33, facilitating the installation of the rotating column 41 on the mounting plate 32, and improving the convenience of assembly.

[0059] In the embodiment of the present utility model, Figure 5 As shown, the number of the connecting legs 50 is set to two, the two connecting legs 50 are arranged at intervals along the left and right directions and are both connected to the rotating plate 42, and the supporting roller 20 is rotatably arranged between the two connecting legs 50, thereby improving the structural stability.

[0060] Furthermore, the connecting leg 50 includes a first mounting section 51, a connecting section 52 and a second mounting section 53. The first mounting section 51 is connected to the side of the rotating plate 42 facing away from the mounting plate 32. One end of the connecting section 52 is connected to the first mounting section 51, and the connecting section 52 is inclined toward the mounting plate 32 in a direction away from the fixed plate 31. The second mounting section 53 is connected to the end of the connecting section 52 away from the first mounting section 51, and the support roller 20 is rotatably provided on the second mounting section 53.

[0061] like Figure 2 and Figure 4 As shown, the first mounting section 51 is connected to the lower side of the rotating plate 42, and the structure is compactly arranged, which reduces the occupied space and improves the space utilization; and the two ends of the connecting section 52 are respectively connected to the first mounting section 51 and the second mounting section 53 in a one-to-one correspondence, and the connecting section 52 is tilted upward from the front to the back, and the second mounting section 53 is used for the installation of the support roller 20. The connecting section 52 extends along the front-to-back direction to reduce the occupied space in the vertical direction and improve the swinging flexibility, and the tilted setting of the connecting section 52 reduces the height of the suction nozzle body 10 from the ground and improves the support stability of the support roller 20.

[0062] In an embodiment of the present invention, the suction nozzle device also includes a lifting mechanism 60, which includes a rocker arm 61 and a drive assembly. One end of the rocker arm 61 is hinged to the frame of the road work vehicle, and the other end of the rocker arm 61 is hinged to the suction nozzle body 10. The drive assembly includes a lifting drive member 62, a pulley 63 and a pull rope 64. The lifting drive member 62 and the pulley 63 are both arranged on the frame. One end of the pull rope 64 is driven and connected to the lifting drive member 62, and the pull rope 64 passes around the pulley 63 and the other end is connected to the rocker arm 61.

[0063] like Figure 7 and Figure 8 As shown, the lifting drive member 62 can drive the pull rope 64 to extend and retract so that the pull rope 64 drives the rocker arm 61 to swing relative to the frame, and the rocker arm 61 swings to lift the nozzle body 10 or lower the nozzle body 10, and the pull rope 64 pulls the nozzle body 10 through the rocker arm 61, so that the nozzle body 10 can maintain balance, effectively preventing the nozzle body 10 from tilting forward, and the structure is stable and reliable.

[0064] Furthermore, a first mounting seat 65 is provided on the frame, a second mounting seat 66 is provided on the suction nozzle body 10, one end of the rocker arm 61 is hinged to the first mounting seat 65, and the other end of the rocker arm 61 is hinged to the second mounting seat 66. The lifting mechanism 60 also includes a connecting rod 67, and the two ends of the connecting rod 67 are respectively hinged to the first mounting seat 65 and the second mounting seat 66, and the connecting rod 67 is arranged parallel to the rocker arm 61.

[0065] like Figure 7 and Figure 8 As shown, the lifting drive 62 drives the pull rope 64 to extend and retract so that the pull rope 64 drives the rocker arm 61 to swing and thereby lift or lower the nozzle body 10. The connecting rod 67 is used to swing synchronously with the rocker arm 61 to improve the stability of the structure and the smoothness of movement, and the connecting rod 67 is supported between the first mounting seat 65 and the second mounting seat 66, further enhancing the structural strength.

[0066] In addition, the present invention also provides a road work vehicle, which includes the suction nozzle device of the road work vehicle described above. The road work vehicle also includes a frame, and the suction nozzle body 10 is installed on the frame. The specific structure of the suction nozzle device refers to the above embodiment. Since the road work vehicle adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought about by the technical solutions of the above embodiment, which will not be repeated here.

[0067] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0068] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A suction nozzle device for a road work vehicle, characterized in that: The suction nozzle device comprises: A nozzle body (10); Support roller (20); The mounting assembly comprises a mounting frame (30), a rotating seat (40) and a connecting leg (50); the supporting roller (20) is arranged at one end of the connecting leg (50); the other end of the connecting leg (50) is connected to the rotating seat (40); the mounting frame (30) is arranged on the suction nozzle body (10); the rotating seat (40) is rotatably arranged on the mounting frame (30) to drive the connecting leg (50) and the supporting roller (20) to swing laterally.

2. The suction nozzle device for a road work vehicle according to claim 1, characterized in that: The rotating seat (40) includes a rotating column (41), a rotating plate (42) and an adjusting nut (43); the rotating column (41) is rotatably inserted into the mounting frame (30); the adjusting nut (43) is threadedly connected to the rotating column (41) and is located on the upper side of the mounting frame (30); the rotating plate (42) is provided at one end of the rotating column (41), and the rotating plate (42) is connected to one end of the connecting leg (50) away from the supporting roller (20).

3. The suction nozzle device for a road working vehicle according to claim 2, characterized in that: The rotating seat (40) further includes a fastening nut (44), the fastening nut (44) being threadedly connected to the rotating column (41), the fastening nut (44) being connected to the upper side of the mounting frame (30) and being located between the mounting frame (30) and the adjusting nut (43).

4. The suction nozzle device for a road work vehicle according to claim 2, characterized in that: The mounting frame (30) includes a fixing plate (31) and a mounting plate (32), wherein the fixing plate (31) is connected to the suction nozzle body (10), and the mounting plate (32) is connected to the fixing plate (31) and is bent from the fixing plate (31) toward a direction away from the suction nozzle body (10), and an installation space (33) is formed between the fixing plate (31) and the mounting plate (32), and the rotating plate (42) is located in the installation space (33), and the rotating column (41) extends vertically from the rotating plate (42) and rotatably passes through the mounting plate (32), and the adjusting nut (43) is located on the upper side of the mounting plate (32).

5. The suction nozzle device for a road working vehicle according to claim 4, characterized in that: The fixing plate (31) is vertically extended, and the distance between the rotating column (41) and the fixing plate (31) is adjustable.

6. The suction nozzle device for a road work vehicle according to claim 4, characterized in that: The mounting frame (30) further includes a reinforcing plate (34), the reinforcing plate (34) being arranged in the mounting space (33) and being connected to the fixed plate (31) and the mounting plate (32) respectively, and a side of the reinforcing plate (34) facing the rotating plate (42) is formed with an avoidance bevel (341), and the avoidance bevel (341) is inclined in a direction away from the fixed plate (31) and toward the mounting plate (32).

7. The suction nozzle device for a road work vehicle according to claim 4, characterized in that: The connecting leg (50) comprises a first mounting section (51), a connecting section (52) and a second mounting section (53); the first mounting section (51) is connected to a side of the rotating plate (42) facing away from the mounting plate (32); one end of the connecting section (52) is connected to the first mounting section (51), and the connecting section (52) is tilted toward the mounting plate (32) in a direction away from the fixed plate (31); the second mounting section (53) is connected to an end of the connecting section (52) away from the first mounting section (51); and the supporting roller (20) is rotatably arranged on the second mounting section (53).

8. The suction nozzle device for a road work vehicle according to any one of claims 1 to 7, characterized in that: The suction nozzle device also includes a lifting mechanism (60), and the lifting mechanism (60) includes a rocker arm (61) and a driving assembly. One end of the rocker arm (61) is hinged to the frame of the road working vehicle, and the other end of the rocker arm (61) is hinged to the suction nozzle body (10). The driving assembly includes a lifting drive member (62), a pulley (63) and a pull rope (64). The lifting drive member (62) and the pulley (63) are both arranged on the frame. One end of the pull rope (64) is drivingly connected to the lifting drive member (62), and the pull rope (64) passes around the pulley (63) and the other end is connected to the rocker arm (61).

9. The suction nozzle device for a road work vehicle according to claim 8, characterized in that: A first mounting seat (65) is provided on the vehicle frame, a second mounting seat (66) is provided on the suction nozzle body (10), one end of the rocker arm (61) is hinged to the first mounting seat (65), and the other end of the rocker arm (61) is hinged to the second mounting seat (66), and the lifting mechanism (60) further includes a connecting rod (67), the two ends of the connecting rod (67) are hinged to the first mounting seat (65) and the second mounting seat (66) respectively, and the connecting rod (67) is arranged parallel to the rocker arm (61).

10. A road working vehicle, characterized in that: The road work vehicle comprises the suction nozzle device for a road work vehicle according to any one of claims 1 to 9.

Images