An agricultural liquid fertilizer spraying device

Abstract

This utility model discloses an agricultural liquid fertilizer spraying device, including an infusion pipe supported by a movable support. A telescopic pipe is provided between adjacent sections of the infusion pipe, and spray holes are provided at the bottom of both the infusion pipe and the telescopic pipe. The movable support includes a fixed part, a telescopic rod at the bottom of the fixed part, and a movable wheel at the bottom of the telescopic rod via a base. A fixing hole is provided through the fixed part. The advantages of this utility model compared to existing technologies are: strong terrain adaptability; the telescopic pipe and telescopic connecting rod cooperate to allow the infusion pipe to bend or extend with the terrain, preventing leakage; adjustable height; the telescopic rod, with locking bolts, allows for adjustment of the spraying height as the crop grows; flexible movement; the double universal wheel design enables free movement in multiple directions, especially suitable for narrow-row farmland; reliable connection; the corrugated pipe and anti-slip layer design improves sealing and tensile strength, reducing maintenance costs; modular expansion; the segmented structure facilitates increasing or decreasing the length of the infusion pipe to adapt to the needs of farmland of different areas.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a mobile, height-adjustable liquid fertilizer spraying device that can adapt to complex terrain. Background Technology

[0002] Liquid fertilizer spraying is an important technology in modern agriculture for improving fertilization efficiency. It uses a pipeline system to evenly spray fertilizer onto the roots or leaves of crops. Traditional spraying devices typically use fixed pipes or simple mobile supports, but these suffer from the following problems in practical applications: Poor terrain adaptability: Fixed pipes are difficult to adapt to undulating or winding areas of farmland, resulting in uneven spraying. Inconvenient movement: Existing mobile supports are mostly rigid structures, making turning difficult and unable to flexibly adjust the operating route. Insufficient height adjustment: Crop height changes significantly during the growth cycle, and traditional devices cannot adjust the spraying position synchronously with crop height. Low connection reliability: Rigid connections between pipes are prone to leakage or breakage due to uneven ground or external forces.

[0003] In existing technologies, some improvements enhance flexibility by adding casters or segmented pipes, but the following drawbacks remain: The lack of expansion joints between pipe segments makes them prone to loosening or leakage due to terrain changes. The limited height adjustment function of the support frame makes it difficult to adapt to the needs of different crops. An unreasonable layout of spray nozzles affects the uniformity of fertilizer coverage.

[0004] Therefore, a liquid fertilizer spraying device for agriculture urgently needs to be researched. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art and to provide a liquid fertilizer spraying device that is flexible, height-adjustable, and adaptable to complex terrain. Through modular structure and telescopic connection design, it improves spraying efficiency and reliability.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an agricultural liquid fertilizer spraying device, including a delivery pipe, the delivery pipe being supported by a movable support, a telescopic pipe being provided between two adjacent delivery pipe sections and connected by a telescopic connecting rod, and spraying holes being provided at the bottom of the delivery pipe and the telescopic pipe;

[0007] The movable support includes a fixed part, a telescopic rod at the bottom of the fixed part, a movable wheel at the bottom of the telescopic rod via a base, and a fixing hole through the fixed part, through which the infusion tube passes and is fixed.

[0008] The telescopic connecting rod includes connecting rings at both ends, with the two connecting rings fixedly connected to the ends of two adjacent infusion tubes, and the telescopic tube located between the two connecting rings;

[0009] The end of the infusion tube is equipped with a connector for connecting a hose that delivers liquid fertilizer.

[0010] As a preferred option, each movable support has two wheels at its bottom.

[0011] As a preferred embodiment, the caster wheel is a swivel wheel.

[0012] As a preferred option, the line connecting the two casters is perpendicular to the infusion tube.

[0013] As a preferred embodiment, the spray holes are circular or elliptical and are equidistantly distributed along the axial direction of the infusion tube.

[0014] As a preferred embodiment, the telescopic tube is a rubber corrugated tube or a metal corrugated tube.

[0015] As a preferred embodiment, the telescopic rod is provided with a height locking bolt, which penetrates the side wall of the telescopic rod and abuts against the internal movable rod.

[0016] As a preferred option, the connector is a quick-release snap-fit ​​connector or a threaded connector.

[0017] As a preferred embodiment, the inner wall of the fixing hole is provided with a rubber anti-slip layer.

[0018] As a preferred embodiment, the fixing part and the telescopic rod are connected by a rotary bearing.

[0019] The advantages of this utility model compared with the prior art are: strong terrain adaptability, the telescopic pipe and telescopic connecting rod cooperate to allow the infusion pipe to bend or extend with the terrain, avoiding leakage; height adjustable, the telescopic rod with locking bolt can adjust the spraying height according to crop growth; flexible movement, the double universal wheel design allows free movement in multiple directions, especially suitable for narrow row spacing farmland; reliable connection, the corrugated pipe and anti-slip layer design improves sealing and tensile strength, and reduces maintenance costs; modular expansion, the segmented structure makes it easy to increase or decrease the length of the infusion pipe to adapt to the needs of farmland of different areas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a utility model Figure 1 A magnified view of part A in the image.

[0022] Figure 3 This is the front view of this utility model.

[0023] Figure 4 This is an exploded view of this utility model.

[0024] Figure 5This is a structural schematic diagram of the movable support of this utility model.

[0025] As shown in the figure: 1. Infusion tube, 2. Movable support, 3. Telescopic tube, 4. Telescopic connecting rod, 5. Connecting ring, 6. Connector, 201. Fixing part, 202. Telescopic rod, 203. Base, 204. Moving wheel, 205. Fixing hole. Detailed Implementation

[0026] The technical solution of this utility model 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 this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "back," 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 manner or components 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, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 a point 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 utility model based on the specific circumstances.

[0029] Referring to the accompanying drawings, an agricultural liquid fertilizer spraying device includes an infusion pipe 1, which is supported by a movable support 2. A telescopic pipe 3 is provided between two adjacent sections of the infusion pipe 1 and connected by a telescopic connecting rod 4. Spraying holes are provided at the bottom of the infusion pipe 1 and the telescopic pipe 3.

[0030] The movable support 2 includes a fixed part 201, a telescopic rod 202 is provided at the bottom of the fixed part 201, a movable wheel 204 is provided at the bottom of the telescopic rod 202 via the base 203, and a fixed hole 205 is provided through the fixed part 201, through which the infusion tube 1 passes and is fixed.

[0031] The telescopic connecting rod 4 includes connecting rings 5 ​​at both ends. The two connecting rings 5 ​​are fixedly connected to the ends of two adjacent infusion tubes 1, and the telescopic tube 3 is located between the two connecting rings 5.

[0032] The end of the infusion tube 1 is provided with a connector 6, which is used to connect the hose for conveying liquid fertilizer.

[0033] The number of movable wheels 204 at the bottom of each movable support 2 is 2.

[0034] The 204 casters are omnidirectional casters.

[0035] The line connecting the two casters is perpendicular to the infusion tube 1.

[0036] The spray holes are circular or elliptical and are evenly distributed along the axis of the infusion tube 1.

[0037] The telescopic tube 3 is a rubber corrugated tube or a metal corrugated tube.

[0038] The telescopic rod 202 is equipped with a height locking bolt, which passes through the side wall of the telescopic rod 202 and abuts against the internal movable rod.

[0039] Connector 6 is either a quick-release snap-fit ​​connector or a threaded connector.

[0040] The inner wall of the fixing hole 205 is provided with a rubber anti-slip layer.

[0041] The fixed part 201 and the telescopic rod 202 are connected by a rotary bearing.

[0042] In this practical implementation, the infusion tube is a rigid PVC pipe, each section being 1.5m in length, with adjacent sections connected by a rubber corrugated pipe. The ends of the telescopic tube are embedded into the ends of the infusion tube and secured with clamps to form a sealed channel. Circular spray holes with a diameter of 2mm are provided at 20cm intervals at the bottom.

[0043] The movable support's fixing part is a U-shaped steel frame with a central opening (embedded with a rubber anti-slip layer) to secure the infusion tubing. The telescopic rod consists of an outer tube and an inner movable rod, with the height fixed by tightening the height locking bolt (adjustable range 0.5-1.2m). The base is equipped with two casters, their axes perpendicular to the infusion tubing, ensuring stability during movement.

[0044] The telescopic connecting rod consists of two sleeved metal rods with welded connecting rings at both ends, and is bolted to the infusion pipe flange. The length of the telescopic rod is adjustable, with a maximum extension of 30cm, compensating for pipeline displacement caused by changes in terrain.

[0045] The end infusion tubing is equipped with a quick-lock connector (such as ISO 7241-A type) that automatically locks in place after being inserted into the tubing.

[0046] The operation method is as follows:

[0047] Assembly: Connect the multiple infusion tubing segments through the telescopic tube, insert them into the fixing holes of the movable support, and lock them in place.

[0048] Height adjustment: Loosen the locking bolt according to the crop height, adjust the telescopic rod to the target height, and then tighten it again.

[0049] Pipeline connection: Connect the hose to the end connector and start the pump to deliver liquid fertilizer.

[0050] Mobile spraying: The propulsion device moves along the field ridges, the casters automatically adapt to changes in direction, and the telescopic hose buffers the undulations of the terrain.

[0051] Storage: Disassemble the infusion tubing, retract the telescopic rod, and fold for storage.

[0052] Working principle: Liquid fertilizer is fed into the infusion pipe through a flexible hose and then flows out evenly through the spray nozzles. During movement, the casters freely steer according to the direction of thrust, and the telescopic tube and connecting rod compensate for pipe bending or expansion deformation, avoiding structural stress concentration. The height adjustment function ensures the spray position is always aimed at the crop roots, improving fertilization efficiency.

[0053] Example

[0054] Taking greenhouse vegetable cultivation as an example:

[0055] A corrugated metal pipe is used as the telescopic tube, and a quick-release connector is used to connect the hose. The movable support is equipped with two casters, spaced 30cm apart, and installed perpendicular to the infusion tube. Adjust the telescopic rod to a height of 0.8m so that the spray nozzles are aimed at the vegetable roots. Push the device along the planting trough, and the liquid fertilizer will evenly cover the crop area through the equidistantly distributed spray nozzles.

[0056] This utility model discloses an agricultural liquid fertilizer spraying device. Through a segmented infusion pipe, a telescopic connection structure, and an adjustable-height movable support, it achieves flexible movement, terrain adaptability, and uniform spraying. The device employs casters, corrugated pipes, and quick-connect fittings, significantly improving operational efficiency and reliability, and is suitable for various agricultural scenarios such as open fields and greenhouses.

[0057] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An agricultural liquid fertilizer spraying device characterized by: It includes an infusion tube, which is supported by a movable support. A telescopic tube is provided between two adjacent sections of the infusion tube and connected by a telescopic connecting rod. Spray holes are provided at the bottom of the infusion tube and the telescopic tube. The movable support includes a fixed part, a telescopic rod at the bottom of the fixed part, a movable wheel at the bottom of the telescopic rod via a base, and a fixing hole through the fixed part, through which the infusion tube passes and is fixed. The telescopic connecting rod includes connecting rings at both ends, with the two connecting rings fixedly connected to the ends of two adjacent infusion tubes, and the telescopic tube located between the two connecting rings; The end of the infusion tube is equipped with a connector for connecting a hose that delivers liquid fertilizer.

2. The liquid fertilizer spraying device for agriculture according to claim 1, characterized in that: Each movable support has two wheels at its bottom.

3. The liquid fertilizer spraying device for agricultural use according to claim 2, characterized by: The wheels are omnidirectional wheels.

4. The liquid fertilizer spraying device for agricultural use according to claim 3, characterized by: The line connecting the two casters is perpendicular to the infusion tube.

5. The agricultural liquid fertilizer spraying device according to claim 1, characterized in that: The spray holes are circular or elliptical and are equidistantly distributed along the axial direction of the infusion tube.

6. The liquid fertilizer spraying apparatus for agricultural use according to claim 1, characterized by: The telescopic tube is a rubber corrugated tube or a metal corrugated tube.

7. The liquid fertilizer spraying apparatus for agricultural use according to claim 1, characterized by: The telescopic rod is equipped with a height locking bolt, which penetrates the side wall of the telescopic rod and abuts against the internal movable rod.

8. The liquid fertilizer spraying apparatus for agricultural use according to claim 1, characterized by: The connector is a quick-release snap-fit ​​connector or a threaded connector.

9. The liquid fertilizer spraying apparatus for agricultural use according to claim 1, characterized by: The inner wall of the fixing hole is provided with a rubber anti-slip layer.

10. The liquid fertilizer spraying apparatus for agricultural use according to claim 1, characterized by: The fixed part is connected to the telescopic rod by a rotary bearing.

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