In-plant trolley sprayer
By introducing the coordinated control of drive components, guide wheels, and air delivery mechanisms into the overhead rail sprayer within the facility, the problems of movement stability and spray uniformity have been solved, enabling efficient spraying operations that can flexibly adapt to different spaces and planting environments.
Patent Information
- Application Number
- CN202521932925.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-09
AI Technical Summary
Existing overhead rail sprayers suffer from insufficient mobility, low operational flexibility, and poor spraying effect, especially under uneven guide rails and complex planting layouts, making it difficult to achieve stable movement and uniform spraying.
It adopts a stable moving structure with drive components and guide wheels, combined with an adjustable height bracket and air delivery mechanism. Through the coordinated control of drive motor, rotary motor and liquid pump, it realizes multi-angle air delivery spraying and adjusts the spray volume and air delivery intensity in real time to adapt to different spaces and planting environments.
It improves the operational flexibility and spraying stability of the equipment in different agricultural facilities, significantly enhances the coverage and uniformity of the pesticide solution, and reduces pesticide waste.
Smart Images

Figure CN224670469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural spraying equipment technology, specifically to a suspended rail sprayer for facility use. Background Technology
[0002] In the field of facility agriculture, overhead rail sprayers are widely used because they can save ground space and are suitable for enclosed environments such as greenhouses.
[0003] A search revealed existing technology (application number: CN201910114595.6), which describes a "greenhouse single-rail self-propelled sprayer and spraying operation method." This utility model uses a circular guide rail and a single-rail operation mode, which reduces the cost of guide rail construction. However, in actual operation, its movement stability relies solely on the cooperation between the walking wheels and the guide rail, lacking an auxiliary stabilizing structure. When the guide rail surface is uneven or affected by airflow, it is prone to shaking, affecting spraying accuracy. On the other hand, the spray coverage adjustment method is singular, only adjusting the height of the spray boom to match the crop height. This is difficult to cope with complex planting layouts with different row spacings and plant shapes, resulting in poor uniformity of pesticide spraying and problems of local missed spraying or over-spraying. At the same time, the support height of existing equipment is mostly fixed, which cannot flexibly adapt to the spatial height differences of different agricultural facilities, limiting operational flexibility. Furthermore, some spraying devices do not integrate air delivery function, and the pesticide relies solely on its own pressure for spraying, resulting in limited coverage and making it difficult to reach the canopy interior and the underside of leaves at a distance.
[0004] Therefore, there is an urgent need for a facility-mounted rail sprayer that can achieve stable movement, adapt to diverse spatial requirements, and improve coverage uniformity through multi-angle air-driven spraying, in order to solve the problems of insufficient stability, low operational flexibility, and poor spraying effect in existing technologies. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a suspended rail sprayer for facilities.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a suspended rail sprayer for facilities, comprising a box body, the box body being rectangular and hollow inside, a support plate connected to one side of the upper end of the box body, a bracket being provided at the end of the support plate away from the box body, the bracket being inverted T-shaped and its height adjustable through positioning holes, a drive assembly being provided on one side of the upper surface of the support plate of the box body and a clamping device being provided on the other side, and a wind-driven mechanism being provided at the lower end of the bracket, the drive assembly being used for moving the device, the clamping device being used for stabilizing the movement of the drive assembly, and the deflection angle of the wind-driven mechanism being adjustable in real time along with the fan speed and the liquid pump spray volume, thereby achieving precise matching between wind-driven spraying and crop canopy characteristics.
[0007] As a further description of the above technical solution: The drive assembly includes a drive motor, which is mounted on one side of the upper surface of the support plate and its output shaft is connected to a drive sprocket. A driven sprocket is mounted above the drive sprocket on the side away from the housing. The drive sprocket and the driven sprocket are connected by a chain.
[0008] As a further description of the above technical solution: The driven sprocket is connected to the drive wheel via a rotating shaft, and the contact point on the drive wheel abuts against the bottom of the hanging rail. The upper surface of the housing is connected to the lower ends of the support rods on both sides, and the upper ends of the support rods are connected to the guide wheel on one side. The guide wheel slides inside the hanging rail.
[0009] As a further description of the above technical solution: The drive wheel is rotatably connected to U-shaped connectors on both sides. The lower surface of the U-shaped connector is connected to the upper end of the pressing device, and the lower end of the pressing device is connected to the upper surface of the support plate. The pressing device includes a spring and damping inside the spring.
[0010] As a further description of the above technical solution: The air conveying mechanism includes a swing motor, which is placed on the upper surface of one end of the support and its output shaft is connected to one end of the transmission rod. The upper surface of the other end of the transmission rod is connected to the lower end of a rotary motor, and the upper output shaft of the rotary motor is connected to the lower end of the fan blade.
[0011] As a further description of the above technical solution: The box has a medicine tank on one side and a liquid pump on the bottom of the other side. One end of the liquid pump is connected to the lower end of the medicine tank through a pipe, and the other end of the liquid pump is connected to one end of a hose, which passes through the inner wall of the box and is connected to a nozzle. The nozzle is connected to the lower end of the transmission rod through a connecting frame, and the spray axis of the nozzle is aligned with the axis of the fan blade.
[0012] As a further description of the above technical solution: A power supply is located above the liquid pump on the side of the inside of the housing, and a control system is installed between the power supply and the liquid pump.
[0013] As a further description of the above technical solution: The drive motor, rotary motor, and liquid pump are electrically connected to the control system. The control system controls the drive motor, rotary motor, and liquid pump to change the flow rate of the nozzle, the rotation speed of the fan blades, and the swing angle of the rotary motor in real time during the forward operation of the sprayer.
[0014] This utility model has the following beneficial effects: 1. The equipment moves stably by working with the drive components and guide wheels. Combined with the height-adjustable support, it can adapt to the space requirements of different agricultural facilities and improve operational flexibility.
[0015] The spring and damping structure of the clamping device can effectively ensure the fit between the drive wheel and the hanging rail, reduce swaying during movement, and ensure stable and reliable spraying operation.
[0016] Second, the air delivery mechanism uses the coordinated action of the swing motor and the rotary motor to drive the fan blades and nozzles to move at multiple angles. Combined with the air delivery, it can adjust the spray volume and air delivery intensity in real time, significantly improving the coverage and uniformity of the pesticide spraying and reducing pesticide waste. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the pneumatic conveying mechanism of this utility model; Legend: 1. Housing; 2. Hanging rail; 3. Drive assembly; 4. Clamping device; 5. Bracket; 6. Medicine tank; 7. Air delivery mechanism; 8. Power supply; 9. Liquid pump; 10. Nozzle; 301. Drive motor; 302. Drive sprocket; 303. Driven sprocket; 304. Chain; 305. Drive wheel; 306. Guide wheel; 701. Swing motor; 702. Fan blades; 703. Rotary motor; Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example
[0021] like Figures 1 to 2 As shown, the facility-mounted rail sprayer provided in this embodiment includes a housing 1, which is rectangular and hollow inside. A support plate is connected to one side of the upper end of the housing 1. A bracket 5 is provided at the end of the support plate away from the housing 1. The bracket 5 is inverted T-shaped and its height can be adjusted through a positioning hole. A drive assembly 3 is provided on one side of the upper surface of the support plate of the housing 1 and a pressing device 4 is provided on the other side. A wind conveying mechanism 7 is provided at the lower end of the bracket 5. The drive assembly 3 is used for moving the device, the pressing device 4 is used for stabilizing the movement of the drive assembly 3, and the wind conveying mechanism 7 is used for uniform spraying of the liquid.
[0022] In this embodiment, the drive assembly 3, the clamping device 4, and the air delivery mechanism 7 constitute the facility-mounted rail sprayer involved in this application.
[0023] It should also be noted that the facilities mentioned in this application can be greenhouses, solar greenhouses, rain shelters, etc. Figure 1 In this embodiment, a greenhouse is used as an example for description. Of course, other types of facilities can also adopt a similar structure, which will not be repeated hereafter.
[0024] Understandable Figure 1 The images only schematically illustrate some of the components of a overhead rail sprayer; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 Due to limitations, rail-mounted sprayers can also include, compared to... Figure 1 More or fewer parts.
[0025] It should also be understood that the control systems were all purchased from the market and are common knowledge in this field. They are only used and not modified, so the control methods and circuit connections will not be described in detail.
[0026] In addition, in this embodiment, a rectangular support plate is welded to one side of the upper end of the box 1. A bracket 5 is installed at the end of the support plate away from the box. A positioning hole is opened in the height direction of the bracket, and the length is adjusted by bolts. A drive assembly 3 is installed on one side of the upper surface of the support plate, and a clamping device 4 is installed on the other side. A wind-blown mechanism 7 is fixed at the lower end of the bracket. The drive assembly 3 drives the equipment to move along the hanging rail 2. The clamping device 4 ensures the stable movement of the drive assembly 3. The wind-blown mechanism 7 sprays the liquid evenly. The deflection angle of the wind-blown mechanism 7, the rotation speed of the fan blades 702, and the spray volume of the liquid pump 9 are adjusted in real time through the control system to achieve precise matching between the wind-blown spray and the characteristics of the crop canopy.
[0027] Specifically, the drive assembly 3 includes a drive motor 301, which is disposed on one side of the upper surface of the support plate and its output shaft is connected to the drive sprocket 302. A driven sprocket 303 is disposed above the side of the drive sprocket 302 away from the housing 1. The drive sprocket 302 and the driven sprocket 303 are connected by a chain 304.
[0028] In this embodiment, the drive motor 301 is bolted to one side of the upper surface of the support plate and the output shaft is keyed to the drive sprocket 302. The drive motor 301 drives the drive sprocket 302 to rotate, and the driven sprocket 303 rotates synchronously through the chain 304.
[0029] Specifically, the driven sprocket 303 is connected to the drive wheel 305 via a rotating shaft, and the contact point on the drive wheel 305 abuts against the bottom of the hanging rail 2. The upper surface of the housing 1 is connected to the lower ends of the support rods on both sides, and the upper ends of the support rods are connected to one side of the guide wheel 306. The guide wheel 306 slides inside the hanging rail 2.
[0030] In a preferred embodiment, the outer circumferential surface of the drive wheel 305 contacts the lower surface of the hanging rail 2. Two cylindrical support rods are vertically welded to both sides of the upper surface of the housing 1. The upper end of the support rod is connected to one side of the guide wheel 306 through a bearing. The guide wheel 306 is slidably fitted into the groove inside the hanging rail 2. The driven sprocket 303 rotates, driving the drive wheel 305 to rotate. The drive wheel 305 moves along the hanging rail 2, and the guide wheel 306 slides within the hanging rail 2 to assist the equipment in moving smoothly. Example
[0031] A clamping device 4 is provided based on Example 1.
[0032] Specifically, the drive wheel 305 is rotatably connected to U-shaped connectors on both sides. The lower surface of the U-shaped connector is connected to the upper end of the pressing device 4, and the lower end of the pressing device 4 is connected to the upper surface of the support plate. The pressing device 4 includes a spring and damping inside the spring.
[0033] In this embodiment, the spring force of the clamping device 4, combined with the damping effect, ensures that the drive wheel 305 is always in close contact with the hanging rail 2, reducing vibration during movement. Example
[0034] An air conveying mechanism 7 is provided based on embodiment 2.
[0035] Specifically, the air delivery mechanism 7 includes a swing motor 701, which is placed on the upper surface of one end of the support 5 and its output shaft is connected to one end of the transmission rod. The upper surface of the other end of the transmission rod is connected to the lower end of the rotary motor 703, and the upper output shaft of the rotary motor 703 is connected to the lower end of the fan blade 702.
[0036] With this setup, the swing motor 701 is bolted to the upper surface of one end of the support 5 along its length. For tall crops such as fruit trees in the facility, another air-feeding mechanism 7 is installed on the other side of the support 5 along its length. The output shaft of the swing motor 701 is keyed to one end of a metal transmission rod, and the upper surface of the other end of the transmission rod is bolted to the lower end of a rotary motor 703. The output shaft of the upper end of the rotary motor 703 is keyed to the lower end of a fan blade 702. The swing motor 701 drives the transmission rod to swing left and right, and the rotary motor 703 drives the fan blade 702 to rotate, generating airflow. The airflow is then pushed to the boundary of the facility by the fan blade 702, expanding the spray range.
[0037] Specifically, a medicine tank 6 is provided on one side of the inside of the box 1, and a liquid pump 9 is provided on the bottom surface of the other side. One end of the liquid pump 9 is connected to the lower end of the medicine tank 6 through a pipe, and the other end of the liquid pump 9 is connected to one end of a hose, and the other end of the hose passes through the inner wall of the box 1 and is connected to a nozzle 10. The nozzle 10 is connected to the lower end of the transmission rod through a connecting frame, and the spray axis of the nozzle 10 is consistent with the axis of the fan blade 702.
[0038] The box 1 contains a rectangular medicine tank 6 on one side and a liquid pump 9 is bolted to the bottom of the other side. The liquid pump 9 draws out the medicine from the medicine tank 6 and delivers it to the nozzle 10 through a hose. The spray direction is adjusted by the movement of the transmission rod. The droplet size VMD after atomization by the nozzle 10 is less than 70μm. The spray volume of the nozzle 10 and the rotation speed of the rotary motor 703 can be adjusted in real time to achieve variable spraying.
[0039] Specifically, a power supply 8 is provided above the side of the housing 1 near the liquid pump 9, and a control system is installed between the power supply 8 and the liquid pump 9.
[0040] In this embodiment, a rectangular power supply 8 is bolted to the upper side of the box 1 near the liquid pump 9. A rectangular control system is installed between the power supply 8 and the liquid pump 9. The control system can be equipped with a wireless interface (such as an industrial WiFi device from the TP-LINK series) for connection with an external controller. The power supply 8 supplies power to each electrical component. The control system regulates the operating status of the motor and the liquid pump 9 to achieve automated spraying. The control system can adjust the discharge rate of the liquid pump 9 and the rotation speed of the drive motor 301 in real time according to parameters such as the straight distance between the nozzle 10 and the crop canopy, the height of the crop canopy, and the density of branches and leaves, as the rotation angle of the rotary motor 703 changes during the forward movement.
[0041] Specifically, the drive motor 301, the rotary motor 703, and the liquid pump 9 are electrically connected to the control system. The control system controls the drive motor 301, the rotary motor 703, and the liquid pump 9 to change the flow rate of the nozzle 10, the rotation speed of the fan blade 702, and the swing angle of the rotary motor 703.
[0042] In this embodiment, the control system changes the rotation speed of the adjusting fan blades 702 by the rotary motor 703, changes the flow rate of the nozzle 10 by controlling the working frequency of the liquid pump 9, and changes the spray coverage by setting the rotation angle of the swing motor 701, thereby achieving precise adjustment and linkage control of spray parameters to adapt to the needs of different operating scenarios.
[0043] In actual use, the drive motor 301 is first started by the control system. The output shaft of the drive motor 301 drives the drive sprocket 302 to rotate. Since the drive sprocket 302 and the driven sprocket 303 are connected by a chain 304, the rotation of the drive sprocket 302 drives the driven sprocket 303 to rotate. The rotation of the driven sprocket 303 drives the drive wheel 305 to rotate, thereby moving the device along the hanging rail 2. At this time, the guide wheels 306 on both sides of the upper surface of the housing 1 guide and stabilize the device. The clamping device 4 connected to the lower end of the drive wheel 305 stabilizes the drive wheel 305 and ensures that the drive wheel 305 is always in close contact with the hanging rail. The lower surface of track 2 is then assisted by the control system to start the rotary motor 703. The output shaft of the rotary motor 703 drives the fan blades 702 to rotate. Then, the control system starts the liquid pump 9, which draws liquid from the medicine tank 6 through the pipeline and then sprays it out through the nozzle 10 through the hose. The liquid is evenly sprayed by the blowing of the fan blades 702. Then, the control system can start the swing motor 701. The output shaft of the swing motor 701 is connected to the transmission rod, which drives the fan blades 702, the rotary motor 703 and the nozzle 10 to swing, thereby adjusting the swing range according to the working scene to achieve directional spraying.
[0044] The power supply 8, liquid pump 9, drive motor 301, swing motor 701 and rotary motor 703 are all electrically connected to the control system. The control system is connected to an external controller. Through the controller, it is convenient to control the power supply of the electrical equipment. The electrical equipment can be powered on when it needs power, avoiding the situation where it cannot be powered on when it needs power.
[0045] It should be noted that the controller can be a conventional known device that is controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific embodiments of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A suspended rail sprayer for use within a facility, characterized in that: The device includes a box (1), which is rectangular and hollow inside. A support plate is connected to one side of the upper end of the box (1). A bracket (5) is provided at the end of the support plate away from the box (1). The bracket (5) is inverted T-shaped and its height can be adjusted through a positioning hole. The spray axis of the nozzle (10) is consistent with the axis of the fan blade (702). A drive assembly (3) is provided on one side of the upper surface of the support plate of the box (1) and a pressing device (4) is provided on the other side. A wind conveying mechanism (7) is provided at the lower end of the bracket (5). The drive assembly (3) is used for the movement of the device. The pressing device (4) is used for the stable movement of the drive assembly (3). The wind conveying mechanism (7) is used for the uniform spraying of the liquid medicine.
2. The facility-mounted rail-mounted sprayer according to claim 1, characterized in that: The drive assembly (3) includes a drive motor (301), which is located on one side of the upper surface of the support plate and its output shaft is connected to the drive sprocket (302). A driven sprocket (303) is located above the drive sprocket (302) on the side away from the housing (1). The drive sprocket (302) and the driven sprocket (303) are connected by a chain (304).
3. The facility-mounted rail-mounted sprayer according to claim 2, characterized in that: The driven sprocket (303) is connected to the drive wheel (305) via a rotating shaft on one side, and the contact point on the drive wheel (305) abuts against the bottom of the hanging rail (2). The upper surface of the housing (1) is connected to the lower end of the support rod on both sides, and the upper end of the support rod is connected to the side of the guide wheel (306). The guide wheel (306) slides inside the hanging rail (2).
4. The facility-mounted rail-mounted sprayer according to claim 3, characterized in that: The drive wheel (305) is rotatably connected to U-shaped connectors on both sides. The lower surface of the U-shaped connector is connected to the upper end of the pressing device (4), and the lower end of the pressing device (4) is connected to the upper surface of the support plate. The pressing device (4) includes a spring and damping inside the spring.
5. The facility-mounted rail-mounted sprayer according to claim 4, characterized in that: The air delivery mechanism (7) includes a swing motor (701), which is placed on the upper surface of one end of the support (5) and its output shaft is connected to one end of the transmission rod. The upper surface of the other end of the transmission rod is connected to the lower end of a rotary motor (703), and the upper output shaft of the rotary motor (703) is connected to the lower end of the fan blade (702).
6. The facility-mounted rail-mounted sprayer according to claim 5, characterized in that: The box (1) has a medicine tank (6) on one side and a liquid pump (9) on the bottom of the other side. One end of the liquid pump (9) is connected to the lower end of the medicine tank (6) through a pipe. The other end of the liquid pump (9) is connected to one end of a hose and the other end of the hose passes through the inner wall of the box (1) and is connected to a nozzle (10). The nozzle (10) is connected to the lower end of the transmission rod through a connecting frame and the spray axis of the nozzle (10) is consistent with the axis of the fan blade (702).
7. The facility-mounted rail-mounted sprayer according to claim 6, characterized in that: A power supply (8) is provided above the side of the housing (1) near the liquid pump (9), and a control system is installed between the power supply (8) and the liquid pump (9).
8. The facility-mounted rail-mounted sprayer according to claim 7, characterized in that: The drive motor (301), rotary motor (703) and liquid pump (9) are electrically connected to the control system. The control system controls the drive motor (301), rotary motor (703) and liquid pump (9) to change the flow rate of the nozzle (10), the rotation speed of the fan blade (702) and the swing angle of the rotary motor (703) in real time during operation.
Citation Information
Patent Citations
Single hanging rail type self-propelled sprayer used in greenhouse and spraying operation method
CN109769789A