Spraying device for fertigation of fruit trees

By designing adjustable left and right nozzles and a telescopic rod mechanism, the problem of uneven spraying in existing devices has been solved, achieving uniform spraying for fruit tree irrigation and fertilization and improving ease of use.

CN223899787UActive Publication Date: 2026-02-13SICHUAN UNIV +2
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Patent Information

Application Number
CN202520534287.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-13
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing fruit tree irrigation and fertilization spraying devices can only spray fruit trees on one side, making it difficult to adjust the nozzles according to the distance between the fruit trees and the device, resulting in uneven spraying and causing inconvenience to users.

Method used

The system features adjustable left and right nozzles and a telescopic rod mechanism. The nozzles are driven by a motor to approach the fruit trees and swing upwards, achieving uniform spraying of the fruit trees on both sides. The nozzle spacing can be adjusted according to the planting gaps of the fruit trees.

Benefits of technology

It enables the adjustment of nozzle spacing according to the planting gaps of fruit trees, ensuring uniform spraying and improving ease of use and spraying effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The spraying device comprises a bearing plate, a liquid fertilizer box is fixedly connected to the rear portion of the top of the bearing plate, a telescopic rod mechanism is rotationally connected to the front side of the top of the bearing plate through a bearing seat, and a driven gear is fixedly connected to the surface of the telescopic rod mechanism. When the bidirectional screw rotates, the two screw blocks are driven to move towards the outer side, the swing mechanism and the spray head are driven to move towards the outer side to be close to a fruit tree, then the retarding motor is started to drive the driving gear to rotate, and when the driving gear rotates, the driven gear and the telescopic rod mechanism are driven to rotate, the swing mechanism is driven to move up and down, and the spray head is driven to swing up and down. The effects that the distance between the two spray heads can be conveniently adjusted according to different fruit tree planting gaps, the spray heads are made to be close to the fruit trees, meanwhile, spraying operation is conducted on the fruit trees on the left side and the right side, the spray heads can swing upwards during spraying, spraying on the tops of the fruit trees is uniform, and use by a user is facilitated are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fruit trees, in particular to a spraying device for fruit tree irrigation and fertilization. BACKGROUND

[0002] Fruit trees refer to trees with edible fruits, and are a general term for perennial plants and stock plants that can provide edible fruits and seeds. For example, apple trees, pear trees, citrus trees, apricot trees, peach trees, etc. During the process of fruit tree planting, irrigation and fertilization are required to supplement the nutrients of fruit trees through irrigation liquid fertilizer and improve yield.

[0003] However, the existing spraying device is mostly a single-sided nozzle, which can only spray the fruit trees on one side of the device. It is inconvenient to adjust the nozzle according to the distance between the device and the fruit trees, and it is not easy to spray the top of the fruit trees, which can lead to uneven spraying and inconvenience for users.

[0004] Therefore, it is necessary to improve it by setting adjustable left and right nozzles. The distance between the two nozzles can be adjusted according to the different planting gaps of fruit trees, so that the nozzles are close to the fruit trees and spray the fruit trees on both sides when passing through the gaps. The nozzles can swing upward during spraying, making the spraying of the top of the fruit trees uniform, which is convenient for users to use. SUMMARY

[0005] To solve the problems raised in the background art, the purpose of the present utility model is to provide a spraying device for fruit tree irrigation and fertilization, which has the advantages of setting adjustable left and right nozzles, making it easy to adjust the distance between the two nozzles according to the different planting gaps of fruit trees, and allowing the nozzles to swing upward during spraying to make the spraying of the top of the fruit trees uniform, which is convenient for users to use. It solves the problem of only being able to spray the fruit trees on one side of the device, which is inconvenient to adjust the nozzle according to the distance between the device and the fruit trees, and is not easy to spray the top of the fruit trees, which can lead to uneven spraying and inconvenience for users.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of spraying device for fruit tree irrigation fertilization, including bearing plate, the rear of the top of bearing plate is fixedly connected with liquid fertilizer tank, the front side of the top of bearing plate is rotatably connected with telescopic link mechanism by bearing seat, the surface of telescopic link mechanism is fixedly connected with driven gear, the top of bearing plate is fixedly connected with retarder motor, the output of retarder motor is fixedly connected with driving gear, the surface of driving gear is engaged with the surface of driven gear, the left and right ends of telescopic link mechanism are all fixedly connected with cam, the surface of the left and right ends of telescopic link mechanism is rotatably connected with moving plate, the left and right sides of the bottom of bearing plate are all slidably connected with screw block, the inside of screw block is threadedly connected with two-way screw rod, the left end of two-way screw rod is rotatably connected with the bottom of bearing plate by support plate, the right side of bearing plate is fixedly connected with positive and negative motor, the output of positive and negative motor is fixedly connected with the right end of two-way screw rod, the left and right sides of bearing plate are all equipped with upper and lower through square groove, the bottom of moving plate extends to the bottom of square groove and is fixedly connected with the top of screw block, the top of moving plate is fixedly connected with swing mechanism, the top of swing mechanism is fixedly connected with spray head, the front of liquid fertilizer tank is communicated with water pump, and the output of water pump is communicated with the input of spray head by rubber telescopic hose.

[0007] As the utility model is preferred, the telescopic link mechanism includes a hollow column rotatably connected to the top of the bearing plate by a bearing seat, the left and right sides of the inside of the hollow column are slidably connected with a moving rod, the front and back sides of the inner wall of the hollow column are both provided with a limiting slot, the front and back sides of the inside of the moving rod are both fixedly connected with a limiting block, the surface of the limiting block is slidably connected with the inner wall of the limiting slot.

[0008] As the utility model is preferred, the swing mechanism includes a bearing frame fixedly connected to the top of the moving plate, the top of the bearing frame is fixedly connected with a top frame, the inside of the top frame is hingedly connected with a swing rod, the outside end of the swing rod is fixedly connected with the inside of the spray head, the bottom of the swing rod is slidably connected with a hinged seat, the inside of the hinged seat is hingedly connected with a lifting rod, the bottom end of the lifting rod penetrates through to the bottom of the bearing frame and is fixedly connected with a lifting frame, the inside of the lifting frame is rotatably connected with a roller, the surface of the roller is in contact with the surface of the cam.

[0009] As the utility model is preferred, the surface of the lifting rod is sleeved with a compression spring, the top end of the compression spring is fixedly connected with the bottom of the bearing frame, and the bottom end of the compression spring is fixedly connected with the top of the lifting frame.

[0010] As the utility model is preferred, the inside of the lifting frame is fixedly connected with a linking block, the inside of the linking block is slidably connected with the outside of the bearing frame, the surface of the lifting rod is slidably connected with a piston, and the surface of the piston is fixedly connected with the inner wall of the bearing frame.

[0011] As a preferred embodiment of this utility model, an observation slot is provided on the right side of the liquid fertilizer tank, and a transparent glass is fixedly connected inside the observation slot. Sealing strips are fixedly connected around the transparent glass, and the surface of the sealing strips is fixedly connected to the inner wall of the liquid fertilizer tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model involves adding liquid fertilizer into a liquid fertilizer tank, pushing the device between fruit trees with both sides facing the trees, and starting a forward and reverse motor to rotate a bidirectional screw according to the planting gaps. The rotation of the bidirectional screw moves two screw blocks outwards, causing a moving plate to move outwards, extending the left and right ends of the telescopic rod mechanism, and moving the swing mechanism and nozzles outwards closer to the fruit trees. Then, a slow-speed motor rotates the drive gear, which in turn rotates the driven gear and telescopic rod mechanism. The rotation of the telescopic rod mechanism causes a cam to rotate, which in turn moves the swing mechanism up and down, causing the nozzles to swing up and down. A water pump then supplies water to the nozzles for spraying. This allows for convenient adjustment of the distance between the two nozzles according to the planting gaps of the fruit trees, enabling the nozzles to pass close to the trees and spray both sides simultaneously. During spraying, the nozzles swing upwards, ensuring even spraying of the top of the fruit trees, making it convenient for the user.

[0014] 2. This utility model utilizes a combination of a hollow column, a moving rod, a limiting groove, and a limiting block. When the moving rod extends outward from within the hollow column, the slow-speed motor drives the hollow column to rotate through the engagement of the drive gear and the driven gear. This causes the hollow column to rotate, which in turn drives the limiting groove to rotate. The limiting block then follows the rotation of the limiting groove, thereby causing the moving rod to rotate and drive the cam to rotate. This achieves the goal of driving the cam to rotate normally without affecting the extension and retraction, thus ensuring the stability of the device. 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 utility model from below;

[0017] Figure 3 This is a cross-sectional view of the telescopic rod mechanism of this utility model;

[0018] Figure 4 This utility model Figure 1 A magnified structural diagram of A in the diagram.

[0019] In the figure: 1, bearing plate; 2, liquid fertilizer tank; 3, telescopic rod mechanism; 4, driven gear; 5, retarder motor; 6, driving gear; 7, cam; 8, moving plate; 9, screw block; 10, two-way screw rod; 11, reversible motor; 12, swing mechanism; 13, spray head; 14, hollow column; 15, moving rod; 16, limiting groove; 17, limiting block; 18, bearing frame; 19, top frame; 20, swing rod; 21, hinged seat; 22, lifting rod; 23, lifting frame; 24, roller; 25, compression spring; 26, link block; 27, piston; 28, transparent glass; 29, sealing strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] As Figures 1 to 4 shown in the utility model provides a kind of spraying device for fruit tree irrigation fertilization, including bearing plate 1, the rear of the top of bearing plate 1 is fixedly connected with liquid fertilizer tank 2, the top of liquid fertilizer tank 2 is communicated with feeding valve pipe, the four corners of the bottom of bearing plate 1 are all provided with universal wheel, the front side of the top of bearing plate 1 is rotatably connected with telescopic rod mechanism 3 by bearing seat, the surface of telescopic rod mechanism 3 is fixedly connected with driven gear 4, the top of bearing plate 1 is fixedly connected with retarder motor 5, the output end of retarder motor 5 is fixedly connected with driving gear 6, the surface of driving gear 6 is engaged with the surface of driven gear 4, the left and right ends of telescopic rod mechanism 3 are all fixedly connected with cam 7, the surface of the left and right ends of telescopic rod mechanism 3 is rotatably connected with moving plate 8, the left and right sides of the bottom of bearing plate 1 are slidably connected with screw block 9, the inside of screw block 9 is threadedly connected with two-way screw rod 10, the left end of two-way screw rod 10 is rotatably connected with the bottom of bearing plate 1 by support plate, the right side of bearing plate 1 is fixedly connected with reversible motor 11, the output end of reversible motor 11 is fixedly connected with the right end of two-way screw rod 10, the left and right sides of bearing plate 1 are all provided with upper and lower penetrating square groove, the bottom of moving plate 8 extends to the bottom of square groove and is fixedly connected with the top of screw block 9, the top of moving plate 8 is fixedly connected with swing mechanism 12, the top of swing mechanism 12 is fixedly connected with spray head 13, the front of liquid fertilizer tank 2 is communicated with water pump, and the output end of water pump is communicated with the input end of spray head 13 through rubber telescopic hose, the surface of telescopic rod mechanism 3 and retarder motor 5 and the surface of two-way screw rod 10 are all covered with protective shell (for easy to show, not shown in the figure).

[0022] Reference Figure 3The telescopic rod mechanism 3 comprises a hollow column 14 rotatably connected to the top of the bearing plate 1 through a bearing seat, and a moving rod 15 slidably connected to the inside of the hollow column 14.

[0023] As a technical optimization scheme of the utility model, through the cooperation of the hollow column 14, the moving rod 15, the limiting groove 16 and the limiting block 17, when the moving rod 15 moves outward in the hollow column 14, the hollow column 14 rotates through the cooperation of the driving gear 6 and the driven gear 4, the hollow column 14 drives the limiting groove 16 to rotate, and the limiting block 17 rotates with the limiting groove 16, so that the moving rod 15 rotates to drive the cam 7 to rotate, thereby achieving normal rotation of the cam 7 without affecting the telescopic function, and ensuring the stability of the device.

[0024] Reference Figure 4 The swinging mechanism 12 comprises a bearing frame 18 fixedly connected to the top of the moving plate 8, a top frame 19 fixedly connected to the top of the bearing frame 18, a swinging rod 20 hingedly connected to the inside of the top frame 19, the outer end of the swinging rod 20 being fixedly connected to the inside of the nozzle 13, a hinged seat 21 slidably connected to the bottom of the swinging rod 20, a lifting rod 22 hingedly connected to the inside of the hinged seat 21, the bottom end of the lifting rod 22 penetrating through the bottom of the bearing frame 18 and being fixedly connected to a lifting frame 23, and a roller 24 rotatably connected to the inside of the lifting frame 23, the surface of the roller 24 being in contact with the surface of the cam 7.

[0025] As a technical optimization scheme of the utility model, when the cam 7 rotates, the roller 24 rotates on the surface thereof and drives the lifting frame 23 to move upward, the lifting frame 23 drives the lifting rod 22 to move upward, the hinged seat 21 is pushed to move upward, and the outer side of the swinging rod 20 is lifted up when the hinged seat 21 moves upward, so that the swinging rod 20 can drive the nozzle 13 to swing, and the spraying range of the nozzle 13 is improved.

[0026] Reference Figure 4 A compression spring 25 is sleeved on the surface of the lifting rod 22, the top end of the compression spring 25 being fixedly connected to the bottom of the bearing frame 18, and the bottom end of the compression spring 25 being fixedly connected to the top of the lifting frame 23.

[0027] As a technical optimization scheme of the utility model, when the lifting rod 22 moves upward to lift the outer end of the swing rod 20, the compression spring 25 is contracted, the cam 7 continues to rotate, the lifting rod 22 is reset downward under the pressure of the compression spring 25, the speed of the swing rod 20 resetting downward is accelerated, the roller 24 can be tightly combined with the surface of the cam 7, the swing efficiency of the nozzle 13 is improved, and uniform spraying is facilitated.

[0028] Reference Figure 4 The inner side of the connecting block 26 is slidably connected with the outer side of the bearing frame 18, the surface of the piston 27 is fixedly connected with the inner wall of the bearing frame 18.

[0029] As a technical optimization scheme of the utility model, the connecting block 26 is arranged to stably support the lifting frame 23, so that the lifting frame 23 can only move vertically on the outer side of the bearing frame 18, the shaking of the lifting frame 23 and the bottom end of the lifting rod 22 is avoided, and the normal use of the device is affected, the piston 27 is arranged, lubricating oil is arranged in the piston 27, the upward and downward movement of the lifting rod 22 is more smooth, and the stability of the device is improved.

[0030] Reference Figure 1 The right side of the liquid fertilizer tank 2 is provided with an observation slot, the inner side of the observation slot is fixedly connected with a transparent glass 28, the periphery of the transparent glass 28 is fixedly connected with a sealing strip 29, and the surface of the sealing strip 29 is fixedly connected with the inner wall of the liquid fertilizer tank 2.

[0031] As a technical optimization scheme of the utility model, the transparent glass 28 is arranged, so that the user can directly observe the remaining amount of fertilizer in the liquid fertilizer tank 2, the user can conveniently add fertilizer in time, the sealing effect is achieved at the gap between the transparent glass 28 and the liquid fertilizer tank 2, and the leakage of the liquid fertilizer tank 2 is avoided.

[0032] The working principle and use process of the utility model: through adding liquid fertilizer to the inside of liquid fertilizer box 2, the device is pushed to the gap between fruit trees, the left and right sides of the device face the fruit trees, according to the planting gap of the left and right sides of the fruit trees, the forward and reverse motor 11 is started to drive the bidirectional screw rod 10 to rotate, when the bidirectional screw rod 10 rotates, the two screw blocks 9 are driven to move to the outside, the moving plate 8 moves to the outside, the left and right ends of the telescopic rod mechanism 3 are stretched, the swing mechanism 12 and the spray head 13 are driven to move to the outside and close to the fruit trees, then the slow motor 5 is started to drive the driving gear 6 to rotate, when the driving gear 6 rotates, the driven gear 4 and the telescopic rod mechanism 3 are driven to rotate, when the telescopic rod mechanism 3 rotates, the cam 7 is driven to rotate, when the cam 7 rotates, the swing mechanism 12 moves up and down, the swing mechanism 12 drives the spray head 13 to swing up and down, then the water pump supplies water to the spray head 13 to spray, so that the interval of the two spray heads 13 can be adjusted according to the planting gap of the fruit trees, the spray head 13 is close to the fruit trees, when passing through the gap of the fruit trees, the left and right sides of the fruit trees are sprayed, when spraying, the spray head 13 swings up, the fruit trees are sprayed evenly, and the user uses conveniently.

[0033] It should be noted that the relative terms such as first and second and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the utility model have been shown and described, it should be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A spraying device for irrigation and fertilization of fruit trees, comprising a support plate (1), characterized in that: The rear of the top of the bearing plate (1) is fixedly connected with a liquid fertilizer tank (2), the front side of the top of the bearing plate (1) is rotatably connected with a telescopic rod mechanism (3) through a bearing seat, the surface of the telescopic rod mechanism (3) is fixedly connected with a driven gear (4), the top of the bearing plate (1) is fixedly connected with a retarding motor (5), the output end of the retarding motor (5) is fixedly connected with a driving gear (6), the surface of the driving gear (6) is engaged with the surface of the driven gear (4), the left and right ends of the telescopic rod mechanism (3) are fixedly connected with a cam (7), the left and right ends of the telescopic rod mechanism (3) are rotatably connected with a moving plate (8), the left and right sides of the bottom of the bearing plate (1) are slidably connected with a screw block (9), the inside of the screw block (9) is threadedly connected with a bidirectional screw rod (10), the left end of the bidirectional screw rod (10) is rotatably connected with the bottom of the bearing plate (1) through a support plate, the right side of the bearing plate (1) is fixedly connected with a reversible motor (11), the output end of the reversible motor (11) is fixedly connected with the right end of the bidirectional screw rod (10), the left and right sides of the bearing plate (1) are both provided with a square slot which penetrates up and down, the bottom of the moving plate (8) extends to the bottom of the square slot and is fixedly connected with the top of the screw block (9), the top of the moving plate (8) is fixedly connected with a swing mechanism (12), the top of the swing mechanism (12) is fixedly connected with a spray head (13), the front of the liquid fertilizer tank (2) is communicated with a water pump, and the output end of the water pump is communicated with the input end of the spray head (13) through a rubber telescopic hose.

2. The fruit tree irrigation and fertilization spraying device according to claim 1, characterized in that: The telescopic rod mechanism (3) comprises a hollow column (14) which is rotatably connected with the top of the bearing plate (1) through a bearing seat, the inside of the hollow column (14) is slidably connected with a moving rod (15) on the left and right sides, the front and back of the inner wall of the hollow column (14) are both provided with a limiting groove (16), the front and back of the inside end of the moving rod (15) are both fixedly connected with a limiting block (17), the surface of the limiting block (17) is slidably connected with the inner wall of the limiting groove (16).

3. The fruit tree irrigation and fertilization spraying device according to claim 1, characterized in that: The swing mechanism (12) comprises a bearing frame (18) which is fixedly connected with the top of the moving plate (8), the top of the bearing frame (18) is fixedly connected with a top frame (19), the inside of the top frame (19) is hingedly connected with a swing rod (20), the outside end of the swing rod (20) is fixedly connected with the inside of the spray head (13), the bottom of the swing rod (20) is slidably connected with a hinged seat (21), the inside of the hinged seat (21) is hingedly connected with a lifting rod (22), the bottom end of the lifting rod (22) penetrates to the bottom of the bearing frame (18) and is fixedly connected with a lifting frame (23), the inside of the lifting frame (23) is rotatably connected with a roller (24), the surface of the roller (24) is attached to the surface of the cam (7).

4. The fruit tree irrigation and fertilization spraying device according to claim 3, characterized in that: The surface of the lifting rod (22) is sleeved with a compression spring (25), the top end of the compression spring (25) is fixedly connected with the bottom of the bearing frame (18), and the bottom end of the compression spring (25) is fixedly connected with the top of the lifting frame (23).

5. The fruit tree irrigation and fertilization spraying device according to claim 3, characterized in that: The inner side of the lifting frame (23) is fixedly connected with a connecting block (26), the inner side of the connecting block (26) is slidably connected with the outer side of the bearing frame (18), the surface of the lifting rod (22) is slidably connected with a piston (27), and the surface of the piston (27) is fixedly connected with the inner wall of the bearing frame (18).

6. The fruit tree irrigation and fertilization spraying device according to claim 1, characterized in that: The right side of the liquid fertilizer tank (2) is provided with an observation slot, the inside of the observation slot is fixedly connected with a transparent glass (28), the periphery of the transparent glass (28) is fixedly connected with a sealing strip (29), and the surface of the sealing strip (29) is fixedly connected with the inner wall of the liquid fertilizer tank (2).