Spraying device for herbicide

Abstract

The invention relates to the technical field of spraying devices, in particular to a herbicide spraying device which comprises a trolley, a winding device is arranged at the top of the trolley, a rotating shaft of the winding device is vertical, a chain assembly is wound in the winding device, a water pipe in the length direction of a chain is arranged in the chain assembly, and the outer end of the water pipe is connected with a sprayer. The inner end of the water pipe is connected with the water outlet end of a water pump, the water inlet end of the water pump is located in a water tank on the upper portion of the trolley, a guide pipe is arranged on the side, corresponding to the winding device, of the top of the trolley, the free end of the chain assembly stretches into the guide pipe, and when the winding device unwinds the chain assembly, the chain assembly stretches out towards one side of the trolley under the guide of the guide pipe. The trolley walks along one side of a weeding area, the extension length of the chain assembly is controlled through the winding device, the spray head can stretch into some places where people cannot conveniently enter deep at the bottoms of green plants, herbicide spraying and covering in irregular areas can be achieved, and large-area herbicide spraying can be achieved by controlling the walking path of the trolley.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, and particularly relates to a spraying device for herbicides. Background Art

[0002] Herbicides refer to agents that can completely or selectively kill weeds, also known as weed killers, which are substances used to eliminate or inhibit plant growth.

[0003] Spraying herbicides is a common means of suppressing weeds. However, currently, it is generally carried out manually, and it is difficult to achieve automatic spraying. It is difficult to spray herbicides in the irregular areas at the lower part of plants, and it is difficult for general spraying vehicles to achieve this. Summary of the Invention

[0004] To solve the deficiency in the prior art that it is difficult to spray herbicides in the irregular areas at the lower part of plants, the present invention provides a spraying device for herbicides.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention provides a spraying device for herbicides, including a trolley. A winding device is arranged on the top of the trolley. The rotating shaft of the winding device is vertical. A chain assembly is wound inside the winding device. A water pipe is arranged inside the chain assembly along the length direction of the chain. The outer end of the water pipe is connected to a nozzle, and the inner end of the water pipe is connected to the water outlet end of a water pump. The water inlet end of the water pump is located in a water tank above the trolley. A guiding pipe is arranged on one side of the trolley top corresponding to the winding device. The free end of the chain assembly extends into the guiding pipe. When the winding device releases the chain assembly, the chain assembly extends out to one side of the trolley under the guidance of the guiding pipe.

[0007] Further, the chain assembly includes chain blocks hinged to each other in sequence. The hinge shafts of the chain blocks are arranged vertically. Through holes are formed in the chain blocks along the length direction of the chain. Top rods are symmetrically arranged at both ends of the through holes. Arc-shaped grooves are formed at the outer ends of the top rods, and a number of positioning teeth are arranged along the arc direction in the arc-shaped grooves. A locking gear cooperating with the positioning teeth is fixedly installed on the hinge shaft.

[0008] Threaded holes are symmetrically formed at the positions corresponding to the through holes on both sides of the chain block. Screws are threadedly installed in the threaded holes. The inner ends of the screws and the inner ends of the top rods are both conical, and the conical surfaces at the inner ends of the screws are in contact with the conical surfaces at the inner ends of the top rods. A driving structure for driving the screws to rotate is arranged in the guiding pipe.

[0009] Further, one end of the guiding pipe is fixedly connected to the tangential outlet of the outer shell of the winding device. The free end of the chain assembly extends out from the tangential outlet of the outer shell and then enters the guiding pipe.

[0010] Further, the driving structure includes racks arranged on both sides inside the guiding pipe. Gears are fixedly installed at the outer ends of the screws, and the gears can be meshed and cooperated with the corresponding racks.

[0011] Furthermore, the outer ends of the ejector rods and the corresponding ends of the through holes are fixedly connected by springs.

[0012] The beneficial effects achieved by the present invention are as follows:

[0013] The trolley of the present invention travels along one side of the weeding area. By controlling the elongation length of the chain assembly through the winding device, the nozzle can be extended to the deep bottom of the green plants in some places where people are inconvenient to enter. By continuously telescoping the chain assembly, the spraying coverage of the herbicide in the irregular area can be achieved, and by controlling the traveling path of the trolley, the spraying of the herbicide over a large area can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a schematic diagram of the partial structure of the guiding pipe of the present invention;

[0016] Figure 3 is Figure 2 a partially enlarged schematic diagram of part Ⅰ of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To facilitate the understanding of those skilled in the art of the present invention, the following describes the specific embodiments of the present invention with reference to the drawings.

[0018] As Figures 1 to 3 shown, the present invention provides a spraying device for herbicides, including a trolley 1. A winding device 2 is arranged on the top of the trolley 1. The rotating shaft of the winding device 2 is vertical. A chain assembly is wound inside the winding device. A water pipe 3 along the length direction of the chain is arranged inside the chain assembly. The outer end of the water pipe 3 is connected to a nozzle 4. The inner end of the water pipe is connected to the water outlet end of a water pump. The water inlet end of the water pump is located in a water tank 5 above the trolley. A guiding pipe 6 is arranged on one side of the trolley corresponding to the winding device. The free end of the chain assembly extends into the guiding pipe 6. When the winding device releases the chain assembly, the chain assembly extends out towards one side of the trolley under the guidance of the guiding pipe 6.

[0019] One end of the guiding pipe 6 is fixedly connected to the tangential outlet of the outer shell of the winding device. The free end of the chain assembly extends out from the tangential outlet of the outer shell and then enters the guiding pipe.

[0020] As Figure 2As shown in the figure, the chain assembly includes chain blocks 7 that are successively hinged. The hinge shafts 8 of the chain blocks are arranged vertically. The chain blocks are provided with through holes 9 along the length direction of the chain. Thrust rods 10 are symmetrically arranged at both front and rear ends of the through hole 9. The outer ends of the thrust rods are provided with arc-shaped grooves, and a number of positioning teeth 11 are arranged along the arc direction in the arc-shaped grooves. A locking gear 12 that mates with the positioning teeth is fixedly installed on the hinge shaft. The outer ends of the thrust rods 10 and the corresponding ends of the through hole 9 are fixedly connected by springs. Threaded holes 13 are symmetrically opened at positions corresponding to the through holes 9 on both sides of the chain block. Screws 14 are threadedly installed in the threaded holes 13. The inner ends of the screws 14 and the inner ends of the thrust rods 10 are both conical, and the conical surface of the inner end of the screw is in contact with the conical surface of the inner end of the thrust rod 10. A driving structure for driving the screw to rotate is arranged in the guiding tube. By driving the screw to rotate through the driving structure, the screw moves inward, and the thrust rod moves outward under the action of the extrusion force. The positioning teeth hold against the corresponding locking gear 12. At this time, the chain block cannot rotate relative to the hinge shaft 8. Therefore, the part of the chain assembly passing through the guiding tube becomes a non-bendable form. The water pipes are successively inserted into the interior of the chain block. By controlling the length of the chain assembly extending from the outer end of the guiding tube through the winding device and cooperating with the operation of the water pump, the horizontal movement of the spray head can be realized, and the control of the spraying range of the herbicide can be achieved.

[0021] As Figure 2 and 3 shown in the figure, the driving structure for driving the screw to rotate includes racks 15 arranged on both sides inside the guiding tube. Gears 16 are fixedly installed at the outer ends of the screws. The gears 16 can be meshed and cooperate with the corresponding racks 15. When the chain assembly extends, when the chain block passes through the rack, the gear 16 meshes with the rack 15. When the chain block passes through the rack, the screw is driven to rotate a certain number of turns, so that the positioning teeth hold against the corresponding locking gear 12. When the chain assembly retracts, the screw flips, and the positioning teeth are separated from the corresponding locking gear 12, without affecting the retracted chain assembly being wound around the winding device.

[0022] Working principle: This device is mainly used in places with irregular weeding areas such as community greening areas or parks. The trolley travels along one side of the weeding area. By controlling the extension length of the chain assembly through the winding device, the spray head can be extended to some inaccessible places deep under the green plants. By continuously stretching and retracting the chain assembly, the spraying coverage of the herbicide in the irregular area can be achieved. By controlling the traveling path of the trolley, the spraying of the herbicide over a large area can be realized.

[0023] The above-described embodiments of the present invention do not constitute a limitation to the protection scope of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A spraying device for herbicides, characterized in that: It includes a trolley, a winding device is arranged on the top of the trolley, the rotating shaft of the winding device is vertical, a chain assembly is wound inside the winding device, a water pipe along the length direction of the chain is built in the chain assembly, the outer end of the water pipe is connected to the nozzle, the inner end of the water pipe is connected to the water outlet end of the water pump, the water inlet end of the water pump is located in the water tank on the upper part of the trolley, a guide pipe is arranged on the side of the top of the trolley corresponding to the winding device, the free end of the chain assembly extends into the guide pipe, and when the winding device releases the chain assembly, the chain assembly extends to one side of the trolley under the guidance of the guide pipe.

2. A spraying device for herbicides according to claim 1, characterized in that: The chain assembly comprises chain blocks which are hingedly connected in sequence, the hinge shaft of the chain block is arranged vertically, the chain block is provided with a through hole along the length direction of the chain, and push rods are symmetrically arranged at the front and rear ends of the through hole, an arc groove is arranged at the outer end of the push rod, and a plurality of positioning teeth are arranged in the arc groove along the arc direction, and a locking gear matched with the positioning teeth is fixedly installed on the hinge shaft; Threaded holes are symmetrically opened at positions corresponding to the through holes on both sides of the chain block. The inner threads of the threaded holes cooperate with the installation screw. The inner ends of the screw and the push rod are both conical, and the inner end conical surface of the screw fits with the inner end conical surface of the push rod. A driving structure for driving the screw to rotate is provided in the guide tube.

3. A spraying device for herbicides according to claim 1, characterized in that: One end of the guide tube is fixedly connected to the tangential outlet of the shell of the winding device, and the free end of the chain assembly extends out from the tangential outlet of the shell and then enters into the guide tube.

4. A spraying device for herbicides according to claim 2, characterized in that: The driving structure includes racks arranged on both sides of the guide tube, and gears are fixedly installed on the outer ends of the screws, and the gears can mesh with the corresponding racks.

5. A spraying device for herbicides according to claim 2, characterized in that: The outer end of the push rod is fixedly connected to the corresponding end of the through hole through a spring.

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