Road spraying vehicle with weeding function

Abstract

The utility model discloses a road watering cart with weeding function, including watering cart, the front end of watering cart is installed with rotating seat, is provided with the hydraulic support suspension of action on rotating seat, and the end of support suspension is installed with reciprocating mower, and reciprocating mower, hydraulic support suspension, rotating seat drive control through hydraulic system, and the utility model provides a road watering cart with weeding and pesticide spraying function and hydraulic control system thereof, through the integration reciprocating mower and pesticide spraying system, utilize hydraulic control system to realize accurate operation, solved the problem that traditional equipment function single, operation efficiency is low, has improved the advantage such as highway maintenance efficiency, reduced equipment cost, enhanced operation security and realized multifunctional integration.

Description

Technical Field

[0001] This utility model relates to the field of road weeding, specifically to a road sprinkler truck with weeding function. Background Technology

[0002] With increased summer rainfall, weeds and shrubs grow vigorously along both sides of the road, posing a serious challenge to road maintenance. Overly tall weeds not only obstruct traffic signs and road conditions, severely affecting drivers' visibility and increasing the risk of traffic accidents, but also pose a significant fire hazard during the dry season.

[0003] Currently, highway maintenance departments mainly employ two methods: one is to use specialized weeding machinery for regular weeding, but this equipment is expensive to purchase and its low usage frequency leads to idle resources; the other is to rely on manual weeding, which is inefficient and poses safety hazards. Meanwhile, the water trucks widely used in highway maintenance have limited functionality, only capable of watering the road surface, resulting in low equipment utilization. Although some multi-functional road maintenance vehicles exist, they generally suffer from limited adjustment range of the weeding device and lack subsequent herbicide spraying capabilities, failing to meet the comprehensive requirements of modern highway maintenance for efficiency, safety, and economy. Especially when dealing with complex terrain such as shoulders and slopes, traditional equipment often cannot achieve precise weeding operations, and the lack of effective follow-up treatment measures after weeding leads to rapid weed regrowth. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a road sprinkler truck with weeding function.

[0005] This utility model is achieved through the following technical solution:

[0006] This application provides a road sprinkler truck with weeding function, including a sprinkler truck, a rotating seat installed at the front end of the sprinkler truck, a hydraulic support suspension that can move on the rotating seat, a reciprocating lawnmower installed at the end of the support suspension, and the reciprocating lawnmower, the hydraulic support suspension and the rotating seat are controlled and driven by a hydraulic system.

[0007] Furthermore, this application also proposes that the rotating seat includes a fixed frame fixed to the front end of the sprinkler truck, and a gear base is rotatably connected to the fixed frame. The gear base is driven to rotate by a rotating motor at the bottom.

[0008] Furthermore, this application also proposes that the hydraulic support suspension includes a support column fixed to the upper part of the gear base, the support column being driven to the upper arm through a boom cylinder that is hinged to its top, the upper arm being driven to the lower arm that is hinged to its front end and hangs down through a lower arm cylinder, and the lower arm being connected to a reciprocating lawnmower.

[0009] Furthermore, this application also proposes that the reciprocating lawnmower includes a lawnmower body and a fixed blade fixed at its front end, a movable blade is provided inside the fixed blade, and the movable blade is connected to a sliding rod slidably connected to the upper part of the lawnmower body, the sliding rod being driven and connected by a cam drive mechanism.

[0010] Furthermore, this application also proposes that the cam drive mechanism includes a connecting frame fixed to the upper part of the lawnmower body and connected to the forearm, a mowing motor is installed on one side of the connecting frame, the output end of the mowing motor is connected to an eccentric wheel, and the eccentric shaft of the eccentric wheel is driven to be connected to a frame-shaped sleeve fixed to the upper part of the sliding rod through a rotating body.

[0011] Furthermore, this application also proposes that the hydraulic system includes a power take-off (PTO) connected to the water truck's transmission, the PTO is driven by a hydraulic pump, and the hydraulic pump is connected to a rotary motor, boom cylinder, arm cylinder, and mowing motor via various hydraulic control lines, with corresponding hydraulic control valves installed on the various hydraulic control lines.

[0012] Furthermore, this application also proposes that a weeding spraying system is provided at the rear end of the reciprocating lawnmower. The weeding spraying system includes a spraying pipe installed at the rear end of the lawnmower body. The spraying pipe is connected to the outlet of a pressurized water pump through a delivery pipe. The pressurized water pump is driven by a power take-off unit with dual output ends. The inlet of the pressurized water pump is connected to the water tank of a sprinkler truck through a pipeline.

[0013] Furthermore, this application also proposes that the spray pipe is made of metal and has several atomizing nozzles installed at its rear end, and a control valve is installed on the delivery pipe.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model provides a road sprinkler truck with weeding and spraying functions and its hydraulic control system. By integrating a reciprocating lawnmower and a spraying system, it utilizes the hydraulic control system to achieve precise operation, solving the problems of single function and low operating efficiency of traditional equipment. It has the advantages of improving road maintenance efficiency, reducing equipment costs, enhancing operational safety, and achieving multi-functional integration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this practical rotary base;

[0017] Figure 3 This is a schematic diagram of the connection between this practical reciprocating lawnmower and its cam drive mechanism;

[0018] Figure 4 yes Figure 3 Enlarged view of a local structure in the diagram;

[0019] Figure 5 This is a practical control system diagram;

[0020] In the diagram: 1. Sprinkler truck; 2. Fixed frame; 3. Gear base; 4. Rotary motor; 5. Support column; 6. Boom; 7. Boom cylinder; 8. Boom cylinder; 9. Connecting frame; 10. Lawn mower body; 11. Sliding rod; 12. Moving blade; 13. Fixed blade; 14. Frame sleeve; 15. Rotating body; 16. Eccentric wheel; 17. Lawn mower motor; 18. Power take-off; 19. Hydraulic pump; 20. Hydraulic control valve; 21. Pressurized water pump; 22. Spraying pipe; 23. Atomizing nozzle; 24. Delivery pipe; 25. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0022] like Figure 1-5 As shown, this application proposes a road sprinkler truck with weeding function, including a sprinkler truck, a rotating seat installed at the front end of the sprinkler truck, a hydraulic support suspension that can move on the rotating seat, a reciprocating lawnmower installed at the end of the support suspension, and the reciprocating lawnmower, the hydraulic support suspension and the rotating seat are controlled and driven by a hydraulic system.

[0023] The swivel base is used to adjust the horizontal rotation of the lawnmower and can employ a gear drive or bearing support structure, with the gear base driven by a hydraulic motor. The hydraulic support suspension includes a multi-stage arm structure, using cylinders to achieve pitch and forward / backward movement. The reciprocating lawnmower includes a cutting mechanism with fixed and moving blades; the moving blades are driven by a cam mechanism, and the cutting frequency is adjustable from 800-1200 cuts per minute. The hydraulic system uses an open or closed circuit, with independent control of each actuator achieved through multi-way directional valves.

[0024] This technical solution integrates a mowing device with a water truck, utilizing the existing power system and walking mechanism of the water truck to mechanize road weeding operations. The hydraulic drive system provides sufficient output torque, allowing the mower to adapt to weed cutting needs at different heights. The combined design of the swivel base and support suspension enables the mower to cover the three-dimensional working space along the road edges. Compared to dedicated weeding equipment, this solution reduces equipment procurement costs while improving the functionality and utilization rate of the water truck. During operation, the water truck can simultaneously wash the road surface, improving road maintenance efficiency.

[0025] Furthermore, this application also proposes that the rotating seat includes a fixed frame fixed to the front end of the sprinkler truck, and a gear base is rotatably connected to the fixed frame. The gear base is driven to rotate by a rotating motor at the bottom.

[0026] Specifically, the mounting bracket is rigidly fixed to the sprinkler truck frame using welding or bolting to ensure overall structural stability. The gear base is rotatably connected to the mounting bracket via a slewing bearing, preferably a crossed roller bearing to withstand combined axial and radial loads. The rotating motor is a hydraulic motor, with a pinion mounted on the output shaft, which meshes with the annular internal gear ring at the bottom of the gear base to form a gear transmission mechanism.

[0027] Therefore, this technical solution achieves multi-angle adjustment of the mowing component through a modular rotating seat structure. The fixed frame serves as the basic load-bearing component, and the gear base achieves precise orientation control through gear transmission. When driven by the rotating motor, the gear meshing transmission is smooth and has a self-locking characteristic, preventing positional deviation during operation. Compared with the simple rotating shaft structure used in existing technologies, this solution significantly improves rotational positioning accuracy and impact resistance through gear transmission, solving the technical problem of angular deviation caused by mechanical vibration in traditional sprinkler truck weeding devices.

[0028] Furthermore, this application also proposes that the hydraulic support suspension includes a support column fixed to the upper part of the gear base, the support column being driven to the upper arm through a boom cylinder that is hinged to its top, the upper arm being driven to the lower arm that is hinged to its front end and hangs down through a lower arm cylinder, and the lower arm being connected to a reciprocating lawnmower.

[0029] Specifically, the support column, as the main load-bearing structure, is fixed to the upper part of the gear base by bolts or welding at its bottom. The cylinder body of the boom cylinder is hinged to the lug plate in the middle of the support column, and the piston rod end is hinged to the lug plate in the middle of the boom. The lifting and lowering of the boom is achieved by changes in hydraulic oil pressure. The boom adopts a box beam structure to improve bending strength. One end is hinged to the top of the support column by a pin, and the other end is hinged to the forearm by a pin. The cylinder body of the forearm cylinder is hinged to the lug plate in the middle of the upper part of the boom, and the piston rod end is hinged to the lug plate at the tail of the forearm. The swinging motion of the forearm is achieved by changes in hydraulic oil pressure. The forearm adopts a welded steel pipe structure to reduce weight, and its end is connected to the reciprocating lawnmower via a connecting frame.

[0030] Therefore, this technical solution achieves three-dimensional adjustment of the lawnmower's working position through a multi-stage hydraulic drive mechanism. The support column provides a vertical support foundation, the boom cylinder drives the boom to perform a fan-shaped motion in the vertical plane, and the arm cylinder drives the arm to perform a pitching motion relative to the boom, thereby moving the lawnmower to different heights and angles. Compared with existing technologies, this structure has a greater adjustable working range, adapting to the needs of weed removal at different heights. Furthermore, the hydraulic drive method features high transmission torque and smooth operation, facilitating reliable weeding operations on mobile vehicles.

[0031] Furthermore, this application also proposes that the reciprocating lawnmower includes a lawnmower body and a fixed blade fixed at its front end, a movable blade is provided inside the fixed blade, and the movable blade is connected to a sliding rod slidably connected to the upper part of the lawnmower body, the sliding rod being driven and connected by a cam drive mechanism.

[0032] Specifically, the fixed blade and the moving blade have a serrated structure. The moving blade moves back and forth in the gap in the center of the fixed blade to achieve the mowing action. The sliding rod, as a moving guide rail, can move back and forth along the T-shaped slide groove on the upper part of the mower body.

[0033] Therefore, this technical solution converts rotary motion into linear reciprocating motion through a cam mechanism, enabling the moving blade to shear relative to the fixed blade. Specifically, the rotation of the eccentric wheel drives the frame sleeve to reciprocate linearly via a rotating body, which in turn drives the sliding rod and the moving blade to complete the cutting action. Compared with existing technologies, this structure has advantages such as high transmission efficiency (up to 85% or more), uniform blade wear (wear reduced by approximately 40% on one side), and long maintenance cycle (maintenance required after 200 hours of operation), effectively solving the problem of traditional rotary lawnmowers easily jamming when cutting thick weeds.

[0034] Furthermore, this application also proposes that the cam drive mechanism includes a connecting frame fixed to the upper part of the lawnmower body and connected to the forearm, a mowing motor is installed on one side of the connecting frame, the output end of the mowing motor is connected to an eccentric wheel, and the eccentric shaft of the eccentric wheel is driven to be connected to a frame-shaped sleeve fixed to the upper part of the sliding rod through a rotating body.

[0035] Specifically, the connecting frame can be welded to the lawnmower body, preferably made of steel to ensure strength. The mowing motor can be a hydraulic motor, with an output speed range of 200-500 rpm recommended. The eccentricity of the eccentric wheel is designed to be 20-50mm, and the rotating body can use a bearing structure to reduce friction loss. The frame sleeve and sliding rod can be connected by welding to ensure reliable power transmission. A sealing cap can also be installed at the front end of the frame sleeve to prevent weeds from entering.

[0036] Therefore, this technical solution converts the rotational motion of the motor into the reciprocating linear motion of the sliding rod through an eccentric wheel, thereby driving the moving blade to perform periodic cutting actions. Compared with traditional gear transmission methods, this structure has advantages such as high transmission efficiency, low noise, and simple maintenance. Specifically, the eccentric wheel mechanism can provide a stable reciprocating stroke, ensuring the uniformity of the blade's cut; at the same time, the compact structural design facilitates its placement in limited spaces, contributing to the overall weight reduction of the equipment. This solution effectively solves the technical problems of complex and easily worn reciprocating motion mechanisms in lawnmowers.

[0037] Furthermore, this application also proposes that the hydraulic system includes a power take-off (PTO) connected to the water truck's transmission, the PTO is driven by a hydraulic pump, and the hydraulic pump is connected to a rotary motor, boom cylinder, arm cylinder, and mowing motor via various hydraulic control lines, with corresponding hydraulic control valves installed on the various hydraulic control lines.

[0038] Specifically, the power take-off (PTO) can be connected to the transmission output shaft using a flanged or clamped structure, transmitting power through a gear set. The hydraulic pump is preferably a gear pump or a piston pump, with its inlet connected to the hydraulic oil tank via a filter. High-pressure steel wire braided hoses or rigid metal pipes can be used for the hydraulic control lines, with quick-connect couplings enabling modular assembly and disassembly. The hydraulic control valves include a manual directional valve, which is installed in the driver's cab for easy operator control. As a preferred embodiment, the rotary motor is a cycloidal hydraulic motor, the boom cylinder and arm cylinder are double-acting hydraulic cylinders, and the mowing motor is a low-speed, high-torque hydraulic motor.

[0039] To address this, the technical solution achieves centralized control of the weeding mechanism through an integrated hydraulic system. The power take-off (PTO) directly obtains driving force from the sprinkler truck's power system, avoiding the increased costs associated with an additional engine. The multi-way hydraulic control valve configuration allows the swivel seat, support suspension, and mower to operate independently, and the operator can flexibly adjust the blade's working position according to the weed height. Compared to a separate power system, this design significantly reduces equipment complexity and maintenance costs while ensuring the stability of weeding operations. The hydraulic system's pressure adaptive characteristics effectively handle variations in cutting resistance from weeds of different hardness, preventing equipment overload damage.

[0040] Furthermore, this application also proposes that a weeding spraying system is provided at the rear end of the reciprocating lawnmower. The weeding spraying system includes a spraying pipe installed at the rear end of the lawnmower body. The spraying pipe is connected to the outlet of a pressurized water pump through a delivery pipe. The pressurized water pump is driven by a power take-off unit with dual output ends. The inlet of the pressurized water pump is connected to the water tank of a sprinkler truck through a pipeline.

[0041] The spray pipe can be made of stainless steel or aluminum alloy, and the spacing of the atomizing nozzles can be adjusted according to actual spraying needs. The control valve can be a solenoid valve or a manual valve to regulate the flow rate of the pesticide solution. As a preferred embodiment, the pressurized water pump can be a plunger pump or a centrifugal pump, and its flow rate and pressure parameters must match the spraying requirements. A dual-output power take-off (PTO) can simultaneously drive the hydraulic pump and the pressurized water pump. The dual-output PTO can adopt the technical solution of the dual-output PTO transmission structure disclosed in CN216045338U, thereby improving power utilization.

[0042] Specifically, this technical solution integrates a spraying system at the rear of the lawnmower, enabling immediate spraying of pesticides onto the roots of weeds after mowing, effectively inhibiting weed regrowth. The spraying system utilizes the existing water tank and power system of the water truck, eliminating the need for additional specialized equipment and reducing modification costs. The atomizing nozzles improve the uniformity of pesticide coverage, and the control valve allows for easy adjustment of the spray volume according to operational needs. Thus, this solution solves the problems of traditional weeding equipment's limited functionality and rapid weed regrowth, achieving highly efficient coordinated operation of mowing and spraying.

[0043] Furthermore, this application also proposes that the spray pipe is made of metal and has several atomizing nozzles installed at its rear end, and a control valve is installed on the delivery pipe.

[0044] The metal pipe possesses high mechanical strength and corrosion resistance, enabling it to withstand vibrations and impacts during weeding operations. The atomizing nozzle can employ a fan-shaped or cone-shaped spray structure, with a nozzle orifice diameter ranging from 0.5-2 mm and an adjustable spray angle of 60-120 degrees. The control valve can be a solenoid valve or a manual ball valve, preferably a solenoid valve with flow regulation, operating at a pressure range of 0.2-1.0 MPa. The metal pipe and atomizing nozzle can be connected via threaded or flanged connections, with flanged connections being more suitable for high-pressure conditions. The delivery pipe can be a pressure-resistant rubber hose or a corrugated metal pipe, with an inner diameter preferably of 20-50 mm.

[0045] Specifically, the metal tube structure effectively resists the impact of flying stones and weeds during weeding operations, preventing pipe damage. The atomizing nozzles are spaced 100-300mm apart, allowing adjustment of the spray range and droplet size according to actual weeding needs. The control valve allows for precise control of the spray volume, preventing pesticide waste. The combined use of the metal tube and atomizing nozzles ensures even coverage of the weeding area, improving weeding effectiveness. Compared to ordinary plastic tubes, metal tubes have a longer service life and lower maintenance costs. This simple and reliable structure is adaptable to various road weeding environments.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A road sprinkler truck with weeding function, comprising a sprinkler truck (1), characterized in that: The front end of the sprinkler truck (1) is equipped with a rotating seat, and the rotating seat is equipped with a hydraulic support suspension that can move. A reciprocating lawnmower is installed at the end of the support suspension. The reciprocating lawnmower, the hydraulic support suspension, and the rotating seat are controlled and driven by a hydraulic system.

2. A road sprinkler truck with weeding function according to claim 1, characterized in that: The rotating seat includes a fixed frame (2) fixed to the front end of the sprinkler truck (1), and a gear base (3) is rotatably connected to the fixed frame (2). The gear base (3) is driven to rotate by a rotating motor (4) at the bottom.

3. A road sprinkler truck with weeding function according to claim 1, characterized in that: The hydraulic support suspension includes a support column (5) fixed on the upper part of the gear base (3). The support column is driven to the upper arm (6) which is hinged to the top of the upper arm by the upper arm cylinder (8). The upper arm (6) is driven to the lower arm (7) which is hinged to the front end and hangs down by the lower arm cylinder (9). The lower arm (7) is connected to the reciprocating lawnmower.

4. A road sprinkler truck with weeding function according to claim 3, characterized in that: The reciprocating lawnmower includes a lawnmower body (11) and a fixed blade (14) fixed at its front end. A movable blade (13) is provided inside the fixed blade (14). The movable blade (13) is connected to a sliding rod (12) slidably connected to the upper part of the lawnmower body (11). The sliding rod (12) is driven by a cam drive mechanism.

5. A road sprinkler truck with weeding function according to claim 4, characterized in that: The cam drive mechanism includes a connecting frame (10) fixed on the upper part of the lawnmower body (11) and connected to the arm (7). A mowing motor (18) is installed on one side of the connecting frame (10). The output end of the mowing motor (18) is connected to an eccentric wheel (17). The eccentric shaft of the eccentric wheel (17) is driven to be connected to a frame-shaped sleeve (15) fixed on the upper part of the sliding rod (12) through a rotating body (16).

6. A road sprinkler truck with weeding function according to claim 1, characterized in that: The hydraulic system includes a power take-off (19) connected to the transmission of the sprinkler truck (1). The power take-off (19) drives a hydraulic pump (20). The hydraulic pump (20) is connected to a rotary motor (4), a boom cylinder (8), a forearm cylinder (9), and a mowing motor (18) through various hydraulic control lines. Corresponding hydraulic control valves (21) are installed on the various hydraulic control lines.

7. A road sprinkler truck with weeding function according to claim 1, characterized in that: The reciprocating lawnmower is equipped with a weeding spraying system at the rear end. The weeding spraying system includes a spraying pipe (23) installed at the rear end of the lawnmower body (11). The spraying pipe (23) is connected to the outlet of a booster water pump (22) through a delivery pipe (25). The booster water pump (22) is driven by a power take-off (19) with dual output ends. The inlet of the booster water pump (22) is connected to the water tank of a sprinkler truck (1) through a pipeline.

8. A road sprinkler truck with weeding function according to claim 7, characterized in that: The spray pipe (23) is made of metal and has several atomizing nozzles (24) installed at its rear end. The delivery pipe (25) is equipped with a control valve.

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