Protective device of spot spraying structure of pavement maintenance truck
By designing protective devices on road maintenance vehicles and using electric push rods to adjust the rotation and pitch angles of the spray boom, the problems of loose connection between the spray boom and water pipe and limited cleaning angle have been solved. This has resulted in expanded protection and cleaning range for the spray boom, and extended its service life.
Patent Information
- Application Number
- CN202422709822.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing road maintenance vehicles have a loose connection between the spray boom and the water pipe, which can lead to water leakage. The cleaning angle is also limited, and the spray boom lacks protective devices and is easily damaged.
A protective device was designed, comprising a base, a protective cover, an electric push rod, and a rotary joint. The electric push rod adjusts the rotation and pitch angles of the spray bar, while the protective cover protects the spray bar, preventing water leakage and expanding the cleaning range.
It effectively protects the spray bar, prevents water leakage, extends service life, expands the cleaning range, and improves cleaning efficiency.
Smart Images
Figure CN223530662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitation vehicle technology, specifically to a protective device for a road maintenance vehicle's spot spray structure. Background Technology
[0002] Currently, many road maintenance vehicles are equipped with spot spray devices on their front sprayers for targeted cleaning of road stains. Existing spray booms are directly mounted on a rotating shaft and connected directly to the water hose. When the boom rotates, it causes the water hose to swing, which can easily loosen and leak after prolonged use. Furthermore, existing boom rotation mechanisms can only control horizontal rotation, limiting the cleaning angle. Additionally, the existing spot spray devices are installed directly in front of the vehicle without protective devices, making them susceptible to damage. Summary of the Invention
[0003] The present invention aims to address the aforementioned shortcomings by providing a protective device for the spot spraying structure of a road maintenance vehicle. The device comprises a base, a protective cover hinged to the top of the base, a push rod seat within the protective cover, an electric push rod 1 horizontally movably connected to the push rod seat, the other end of the electric push rod 1 movably connected to a push rod lug plate, the push rod lug plate fixedly connected to a rotating plate, the rotating plate fixedly connected to a rotary joint, a spray bar fixedly connected to the side wall of the rotary joint, a water inlet pipe connected to the bottom of the rotary joint, and a strip-shaped hole for the spray bar to extend from the side wall of the protective cover. The base and the bottom of the protective cover are connected via a second electric push rod.
[0004] This utility model has the following beneficial effects:
[0005] 1. This utility model has a protective cover on the dot spraying device, which can effectively protect the dot spraying device, prevent it from being damaged, and extend its service life.
[0006] 2. This utility model connects to the water inlet pipe via a rotary joint, avoiding the phenomenon that the water inlet pipe swings when the spray bar rotates, thus effectively extending its service life and preventing water leakage.
[0007] 3. This utility model can adjust the pitch angle of the spray bar by using the electric push rod 2, thereby expanding its cleaning range. Attached Figure Description
[0008] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 This is a schematic diagram showing the connection between the protective cover and the base.
[0011] In the diagram: 1. Push rod seat; 2. Electric push rod one; 3. Rotary joint; 4. Water inlet pipe; 5. Rotary plate; 6. Push rod ear plate; 7. Spray rod; 8. Protective cover; 9. Electric push rod two; 10. Base; 11. Strip hole. Detailed Implementation
[0012] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0013] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0014] like Figures 1 to 2 As shown, a protective device for a road maintenance vehicle's spot spraying structure comprises a base 10, a protective cover 8 hinged to the top of the base 10, a push rod seat 1 inside the protective cover 8, an electric push rod 2 horizontally movably connected to the push rod seat 1, the other end of the electric push rod 2 being movably connected to a push rod ear plate 6, the push rod ear plate 6 being fixedly connected to a rotating plate 5, the rotating plate 5 being fixedly connected to a rotary joint 3, a spray rod 7 being fixedly connected to the side wall of the rotary joint 3, a water inlet pipe 4 being connected to the bottom of the rotary joint 3, and a strip-shaped hole 11 for the spray rod 7 to extend from the side wall of the protective cover 8. The base 10 and the bottom of the protective cover 8 are connected by an electric push rod 9.
[0015] When adjusting the horizontal angle of the spray bar 7 during operation, the electric push rod 1 2 extends and retracts to drive the rotating plate 5 to rotate clockwise or counterclockwise, and the spray bar 7 rotates through the rotary joint 3. When adjusting the pitch angle of the spray bar 7, the electric push rod 2 9 extends and retracts to drive the protective cover 8 to rotate around the hinge point with the base 10, thereby achieving the purpose of adjusting the pitch angle of the spray bar 7.
[0016] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A protective device for a road maintenance vehicle's spot spray structure, comprising a base (10), characterized in that: The top of the base (10) is hinged with a protective cover (8). A push rod seat (1) is provided inside the protective cover (8). An electric push rod (2) is horizontally and movably connected to the push rod seat (1). The other end of the electric push rod (2) is movably connected to the push rod ear plate (6). The push rod ear plate (6) is fixedly connected to the rotating plate (5). The rotating plate (5) is fixedly connected to the rotary joint (3). A spray rod (7) is fixedly connected to the side wall of the rotary joint (3). A water inlet pipe (4) is connected to the bottom of the rotary joint (3). A strip hole (11) for the spray rod (7) to extend is provided on the side wall of the protective cover (8). The bottom of the base (10) and the protective cover (8) are connected by an electric push rod (9).