A maintenance vehicle front spraying device and maintenance vehicle

Abstract

The application provides a maintenance vehicle front spraying device and a maintenance vehicle, and belongs to the technical field of environmental sanitation equipment. The maintenance vehicle front spraying device comprises a fixing seat, a spraying frame which is hingedly arranged with the fixing seat, a rotary driving part which is arranged on the fixing seat and has a driving end capable of rotating forward or reversely, and at least two traction structures, the first ends of the at least two traction structures are connected with the driving end, the second ends of the at least two traction structures are connected with the spraying frame and are separately arranged on the two sides of the hinge joint between the fixing seat and the spraying frame, the first end of the traction structure is wound on the driving end, the winding directions of the traction structures on the opposite sides of the hinge joint are opposite, and the winding directions of the traction structures on the same side of the hinge joint are the same. The maintenance vehicle front spraying device provided by the application has high reliability because the traction structure does not have to bear the vertical impact load, and the overall structure of the device is simple, and the device is convenient to disassemble, assemble and overhaul.

Description

Technical Field

[0001] This invention relates to the field of sanitation equipment technology, specifically to a front spraying device for a maintenance vehicle and the maintenance vehicle itself. Background Technology

[0002] The front spray system of a maintenance vehicle can typically change the spray direction, thereby increasing the spray area. In existing technology, a telescopic drive device is usually used to drive the spray frame to swing, thus changing the spray direction. However, the telescopic drive device is continuously subjected to vertical impact loads, which can easily lead to breakage and failure.

[0003] Chinese patent document CN111379212A discloses a front spraying device, in which a vibration damping element is provided between the telescopic drive device and the spraying frame mounting base to reduce the impact on the telescopic drive device. However, the additional vibration damping element makes the overall structure of the front spraying device complex and makes the entire front spraying device difficult to disassemble and assemble, increasing the difficulty of maintenance and repair. Summary of the Invention

[0004] Therefore, the present invention aims to solve the problem that the overall structure of the front spray device in the prior art is complex and difficult to disassemble and assemble, thereby providing a front spray device for maintenance vehicles and a maintenance vehicle.

[0005] To address the aforementioned problems, the present invention provides a front spraying device for a maintenance vehicle, comprising: a fixed base; a spray frame hinged to the fixed base; a rotary drive unit disposed on the fixed base, the rotary drive unit having a drive end capable of rotating clockwise or counterclockwise; and at least two traction structures, wherein the first ends of the at least two traction structures are connected to the drive end, and the second ends of the at least two traction structures are connected to the spray frame, and are respectively disposed on both sides of the hinge point between the fixed base and the spray frame; the first ends of the traction structures are wound around the drive end, the winding directions of the traction structures located on opposite sides of the hinge point are opposite, and the winding directions of the traction structures located on the same side of the hinge point are the same.

[0006] Optionally, the drive end is formed with at least two winding sections in sequence along the axial direction, and the first ends of at least two traction structures are respectively arranged corresponding to at least two winding sections.

[0007] Optionally, at least one partition is provided on the drive end, and the partition is located between adjacent winding sections.

[0008] Optionally, the driving end is provided with an end plate, which is provided at the end of the driving end.

[0009] Optionally, the fixed base includes a bracket and a connecting frame, one end of the connecting frame is fixedly connected to the bracket, the other end of the connecting frame is hinged to the spray frame, and the rotation drive unit is disposed on the connecting frame.

[0010] Optionally, the drive end includes a drive shaft and a drum, the drum being sleeved outside the drive shaft, the drive shaft being adapted to drive the drum to rotate, and the first end of the traction structure being wound around the drum.

[0011] Optionally, the spray frame includes a frame body and a hinge seat. The hinge seat is located at the middle position in the extending direction of the frame body. The hinge seat is disposed on the side of the frame body facing the fixed seat. The fixed seat is hinged to the hinge seat.

[0012] Optionally, the spray frame further includes a traction seat, which is disposed on the frame body and at least two are provided. The at least two traction seats are respectively disposed on both sides of the hinge seat, and the at least two traction seats are correspondingly connected to the second ends of the at least two traction structures.

[0013] The present invention also provides a maintenance vehicle, including the aforementioned maintenance vehicle front spray device.

[0014] Optionally, the maintenance vehicle also includes a vehicle body, and the mounting bracket is connected to the vehicle body.

[0015] The present invention has the following advantages:

[0016] 1. The present invention provides a front spraying device for maintenance vehicles. When it is necessary to change the angle of the spraying frame, the first end of the traction structure located on one side of the hinge point is wound by the rotary drive unit. At the same time, the first end of the traction structure located on the other side of the hinge point is released, so as to realize the swing of the spraying frame. The traction structure does not have to bear the vertical impact load, which has high reliability. In addition, the overall structure of the device is simple and easy to disassemble and maintain.

[0017] 2. The present invention provides a front spraying device for a maintenance vehicle, wherein the first ends of at least two traction structures are wound onto the drive end in sections, and the winding or unwinding of the first end of each traction structure is carried out independently, and there is no interference between the first ends of at least two traction structures, thus ensuring the smooth progress of the spray frame angle adjustment process.

[0018] 3. The present invention provides a front spraying device for a maintenance vehicle, which further divides the winding section by setting a partition, thereby restricting the traction structure.

[0019] 4. The present invention provides a front spraying device for a maintenance vehicle, which restricts the traction structure at the end of the drive end by setting an end plate to prevent the traction structure from detaching from the drive end. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This diagram shows the overall structure of the maintenance vehicle front spray device provided in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A partial structural diagram at point A (traction structure not shown);

[0023] Figure 3 This diagram illustrates the structure of the traction structure provided in an embodiment of the present invention when it is wound around the drive end.

[0024] Figure 4 for Figure 1 A partial structural diagram at point B (traction structure not shown).

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Fixed seat; 11. Bracket; 12. Connecting frame; 20. Sprayer frame; 21. Frame body; 22. Hinge seat; 23. Traction seat; 231. Seat body; 232. Fixed rod; 30. Rotary drive unit; 31. Drive end; 311. Winding section; 32. Partition plate; 33. End plate; 40. Traction structure; 50. Sprayer component. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] like Figures 1 to 4 A specific embodiment of the front spraying device for the maintenance vehicle shown includes: a fixed base 10, a spray frame 20, a rotary drive unit 30, and a traction structure 40. The spray frame 20 is hinged to the fixed base 10. The rotary drive unit 30 is mounted on the fixed base 10 and has a drive end 31 capable of rotating clockwise or counterclockwise. At least two traction structures 40 are provided. The first ends of at least two traction structures 40 are connected to the drive end 31, and the second ends of at least two traction structures 40 are connected to the spray frame 20, and are respectively located on both sides of the hinge point between the fixed base 10 and the spray frame 20. The first ends of the traction structures 40 are wound around the drive end 31. The winding directions of the traction structures 40 located on opposite sides of the hinge point are opposite, and the winding directions of the traction structures 40 located on the same side of the hinge point are the same.

[0032] When the angle of the spray frame 20 needs to be changed using the front spray device of the maintenance vehicle in this embodiment, the first end of the traction structure 40 located on one side of the hinge point is wound by the rotary drive unit 30. At the same time, the first end of the traction structure 40 located on the other side of the hinge point is released, so that the spray frame 20 can swing. The traction structure 40 does not have to bear the vertical impact load, which is highly reliable. In addition, the overall structure of the device is simple and easy to disassemble and repair.

[0033] In this embodiment, as Figure 1As shown, two traction structures 40 are provided. The first ends of both traction structures 40 are located on the drive end 31, and the second ends of the two traction structures 40 are located on both sides of the hinge point. Specifically, as shown... Figure 1 and Figure 3 As shown, the first end of the traction structure 40 on the left is wound clockwise around the drive end 31, and the first end of the traction structure 40 on the right is wound counterclockwise around the drive end 31. Therefore, when the drive end 31 rotates clockwise, the first end of the traction structure 40 on the left is wound up, and the first end of the traction structure 40 on the right is released, causing the left end of the spray frame 20 to swing toward the fixed base 10, and the right end of the spray frame 20 to swing away from the fixed base 10; when the drive end 31 rotates counterclockwise, the first end of the traction structure 40 on the left is released, and the first end of the traction structure 40 on the right is wound up, causing the left end of the spray frame 20 to swing away from the fixed base 10, and the right end of the spray frame 20 to swing toward the fixed base 10.

[0034] Of course, in other alternative embodiments, the number of traction structures 40 can also be more than two, such as three, four, etc., as long as at least one traction structure 40 is provided on each side of the hinge point. Taking a configuration with four traction structures 40 as an example, two traction structures 40 are provided on each side of the hinge point. Figure 1 Taking the example shown, at this time, the first ends of the two traction structures 40 on the left are wound around the drive end 31 in a clockwise direction, and the first ends of the two traction structures 40 on the right are wound around the drive end 31 in a counterclockwise direction.

[0035] like Figures 1 to 3 As shown, the drive end 31 has at least two winding sections 311 formed sequentially along the axial direction, and the first ends of at least two traction structures 40 are respectively arranged corresponding to the at least two winding sections 311. The first ends of at least two traction structures 40 are wound onto the drive end 31 in sections, and the winding or unwinding of the first end of each traction structure 40 is carried out independently. There is no interference between the first ends of at least two traction structures 40, ensuring the smooth progress of the angle adjustment process of the spray frame 20.

[0036] In this embodiment, as Figures 1 to 3 As shown, two winding sections 311 are formed on the drive end 31, and the first ends of the two traction structures 40 are set one-to-one with the two winding sections 311.

[0037] It is worth noting that the number of winding intervals 311 is set according to the number of traction structures 40. That is, for example, when there are four traction structures 40, there are also four winding intervals 311.

[0038] like Figure 2 and Figure 3 As shown, at least one partition 32 is provided on the drive end 31, and the partition 32 is located between adjacent winding sections 311. By setting the partition 32, the winding sections 311 are further divided, thereby restricting the traction structure 40.

[0039] In this embodiment, as Figure 2 and Figure 3 As shown, a partition 32 is provided, which is located between two winding sections 311.

[0040] It should be noted that when there are more than two winding sections 311, the number of partitions 32 will be more than one. For example, when there are four winding sections 311, there will be three partitions 32; that is, three partitions 32 are used to divide the drive end 31 into four winding sections 311.

[0041] like Figures 1 to 3 As shown, an end plate 33 is also provided on the drive end 31, and the end plate 33 is provided at the end of the drive end 31. By providing the end plate 33, the traction structure 40 is restricted at the end of the drive end 31 to prevent the traction structure 40 from detaching from the drive end 31.

[0042] In this embodiment, the traction structure 40 is a steel wire rope.

[0043] Of course, in other alternative embodiments, the traction structure 40 can also be other flexible bodies that are easy to wind.

[0044] like Figure 1 As shown, the fixed base 10 includes a bracket 11 and a connecting frame 12. One end of the connecting frame 12 is fixedly connected to the bracket 11, and the other end of the connecting frame 12 is hinged to the spray frame 20. The rotary drive unit 30 is disposed on the connecting frame 12. For details, please refer to [link to details]. Figure 1 The body of the rotary drive unit 30 is fixed on the connecting frame 12, and the drive end 31 of the rotary drive unit 30 extends toward the spray frame 20.

[0045] In this embodiment, the rotary drive unit 30 is a motor.

[0046] In this embodiment, the drive end 31 includes a drive shaft and a drum. The drum is sleeved outside the drive shaft, and the drive shaft is adapted to drive the drum to rotate. The first end of the traction structure 40 is wound around the drum.

[0047] In this embodiment, as Figure 1 and Figure 2As shown, the partition 32 and the end plate 33 are disposed on the drum. The partition 32 is fixedly connected to the outer wall of the drum, and the end plate 33 is fixedly connected to the connecting frame 12. The drum is inserted into the end plate 33 and can be rotatably disposed. Therefore, the end plate 33 can support the drive end 31 and improve the stability of the drive end 31 during rotation.

[0048] Of course, in other alternative embodiments, the end plate 33 and the partition plate 32 can be fixedly connected to the outer wall of the drum so that the end plate 33 and the partition plate 32 can rotate synchronously with the drive end 31; or, the end plate 33 and the partition plate 32 can be fixedly connected to the connecting frame 12 so that the drive end 31 is inserted into the end plate 33 and the partition plate 32 and can be rotatably set.

[0049] like Figure 1 As shown, the spray frame 20 includes a frame body 21 and a hinge seat 22. The hinge seat 22 is located at the middle position in the extending direction of the frame body 21. The hinge seat 22 is disposed on the side of the frame body 21 facing the fixed seat 10. The fixed seat 10 and the hinge seat 22 are hinged together.

[0050] like Figure 1 As shown, the spray frame 20 also includes a traction seat 23. The traction seat 23 is disposed on the frame body 21 and at least two are provided. The at least two traction seats 23 are disposed on both sides of the hinge seat 22. The at least two traction seats 23 are correspondingly connected to the second ends of the at least two traction structures 40.

[0051] In this embodiment, as Figure 1 As shown, there are two traction seats 23, which are respectively located on the left and right sides of the hinge seat 22. Each traction seat 23 is connected to the second end of a traction structure 40.

[0052] In this embodiment, as Figure 4 As shown, the traction seat 23 includes a seat body 231 and a fixing rod 232. The seat body 231 is connected to the frame body 21, and the fixing rod 232 is disposed on the seat body 231. The second end of the traction structure 40 is sleeved on the fixing rod 232 or tied to the fixing rod 232.

[0053] like Figure 1 As shown, a spraying component 50 is provided on the spraying frame 20.

[0054] This embodiment also provides a specific implementation of a maintenance vehicle, including the aforementioned front spray device for the maintenance vehicle.

[0055] In this embodiment, the maintenance vehicle also includes a vehicle body, and the fixing seat 10 is connected to the vehicle body.

[0056] Based on the above description, this patent application has the following advantages:

[0057] 1. The traction structure 40 does not need to bear vertical impact loads, has high reliability, extends the service life of the front spray device, and reduces maintenance costs;

[0058] 2. No additional vibration damping structure is required. The overall structure of the device is simple and easy to disassemble and maintain.

[0059] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A spray device for the front of a maintenance vehicle, characterized in that, include: Fixture (10); The spray frame (20) is hinged to the fixed base (10); A rotary drive unit (30) is disposed on the fixed base (10). The rotary drive unit (30) has a drive end (31) which is capable of rotating forward or backward. At least two traction structures (40) are provided. The first end of the at least two traction structures (40) is connected to the drive end (31), and the second end of the at least two traction structures (40) is connected to the spray frame (20). They are respectively located on both sides of the hinge point between the fixed seat (10) and the spray frame (20). The first end of the traction structure (40) is wound around the drive end (31). The winding directions of the traction structures (40) located on opposite sides of the hinge point are opposite, and the winding directions of the traction structures (40) located on the same side of the hinge point are the same.

2. The maintenance vehicle front spray device according to claim 1, characterized in that, The drive end (31) has at least two winding sections (311) formed sequentially along the axial direction, and the first ends of at least two traction structures (40) are respectively arranged corresponding to at least two winding sections (311).

3. The maintenance vehicle front spray device according to claim 2, characterized in that, At least one partition (32) is provided on the drive end (31), and the partition (32) is located between adjacent winding intervals (311).

4. The maintenance vehicle front spray device according to any one of claims 1-3, characterized in that, The drive end (31) is provided with an end plate (33), which is provided at the end of the drive end (31).

5. The maintenance vehicle front spray device according to any one of claims 1-3, characterized in that, The fixed base (10) includes a bracket (11) and a connecting frame (12). One end of the connecting frame (12) is fixedly connected to the bracket (11), and the other end of the connecting frame (12) is hinged to the spray frame (20). The rotary drive unit (30) is disposed on the connecting frame (12).

6. The maintenance vehicle front spray device according to any one of claims 1-3, characterized in that, The drive end (31) includes a drive shaft and a drum. The drum is sleeved outside the drive shaft. The drive shaft is adapted to drive the drum to rotate. The first end of the traction structure (40) is wound around the drum.

7. The maintenance vehicle front spray device according to any one of claims 1-3, characterized in that, The spray frame (20) includes a frame (21) and a hinge seat (22). The hinge seat (22) is located at the middle position in the extension direction of the frame (21). The hinge seat (22) is disposed on the side of the frame (21) facing the fixed seat (10). The fixed seat (10) is hinged to the hinge seat (22).

8. The maintenance vehicle front spray device according to claim 7, characterized in that, The spray frame (20) also includes a traction seat (23), which is disposed on the frame (21) and there are at least two of them. The at least two traction seats (23) are disposed on both sides of the hinge seat (22), and the at least two traction seats (23) are correspondingly connected to the second end of the at least two traction structures (40).

9. A maintenance vehicle, characterized in that, Includes the maintenance vehicle front spray device as described in any one of claims 1-8.

10. The maintenance vehicle according to claim 9, characterized in that, The maintenance vehicle also includes a vehicle body, and the fixing seat (10) is connected to the vehicle body.

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