Folding type spraying machine

By designing a folding sprayer and utilizing the hinged and locking structure of the wing rod, the difficulties in using sprayers in small plots and hilly areas have been solved, achieving efficient space utilization and stable operation.

CN224267989UActive Publication Date: 2026-05-26SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
Filing Date
2025-07-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing spray boom length limits its use in small plots and hilly areas, resulting in significant space limitations and making it difficult to meet the needs of individual farmers.

Method used

A folding sprayer was designed, which achieves horizontal deployment and vertical folding of the spray bar through vertically hinged wing rods. The engagement and locking of the spray bar with a pin and a V-groove ensures structural stability and convenient operation. The upright can adjust the height of the spray bar and is connected to an external power platform through a suspension lug.

Benefits of technology

It enables the sprayer to operate in narrow spaces while reducing space limitations, ensuring work efficiency, and features strong structural stability, convenient operation, and strong adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding spraying machine which comprises a machine frame, wing rods are vertically hinged to the two sides of the machine frame, spraying rods are embedded in the wing rods, a plurality of spraying nozzles are arranged in the extending direction of the spraying rods at intervals, the two spraying rods are connected with a pesticide spraying pump through hoses, and the pesticide spraying pump is connected with a pesticide box. A rotating shaft is arranged on the rack, a sleeve is arranged at one end of each wing rod, the rotating shafts are rotationally sleeved with the sleeves, clamping grooves are formed in the outer side walls of the sleeves, and clamping pins clamped with the clamping grooves and used for locking the wing rods are movably arranged on the rack; according to the scheme, horizontal unfolding and vertical folding of the two spraying rods can be achieved, the working efficiency of the spraying machine is guaranteed, meanwhile, narrow running of the spraying machine is facilitated, and the space limitation when the spraying machine is used is reduced; meanwhile, the wing rods can be locked through the clamping pins in the horizontal unfolding state and the vertical folding state, the structural stability is high, operation is convenient and fast, and frequent switching of the two states is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to a folding sprayer. Background Technology

[0002] As is well known, the longer the spray boom of a sprayer and the more spray heads it can install, the higher its working efficiency. However, existing sprayers generally have a fixed structure, and a long spray boom will result in a larger lateral dimension of the sprayer, making it difficult for the sprayer to operate in narrow spaces, and unsuitable for small plots, hilly and mountainous areas, thus reducing individual farmers' willingness to purchase existing sprayers. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a folding sprayer, which solves the problem of limited space in existing sprayers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A folding sprayer is provided, comprising a frame, with wing rods vertically hinged to both sides of the frame. Spray rods are embedded in the wing rods, and several nozzles are spaced apart along the extension direction of the spray rods. Both spray rods are connected to a pesticide pump via hoses, and the pesticide pump is connected to a pesticide tank. A rotating shaft is provided on the frame, and a sleeve is provided at one end of the wing rod. The sleeve is rotatably fitted onto the rotating shaft, and a groove is provided on the outer wall of the sleeve. A locking pin is movably provided on the frame to engage with the groove and lock the wing rod.

[0006] Furthermore, the slot is a V-shaped groove with a 90-degree included angle. When the pin engages with the V-shaped groove, the end face and side wall of the pin abut against the two groove surfaces of the V-shaped groove, respectively.

[0007] Furthermore, there are two V-grooves, and the two V-grooves are arranged at 90 degrees around the sleeve.

[0008] Furthermore, the frame is provided with a sliding groove for the pin to pass through, and a sliding ring is provided in the middle of the pin to slide in contact with the inner side wall of the sliding groove. A fixed ring is provided at the end of the sliding groove away from the wing rod, and a compression spring is provided between the fixed ring and the sliding ring.

[0009] Furthermore, uprights are installed on both sides of the top of the frame, and two wing rods are vertically hinged to the upper ends of the two uprights respectively.

[0010] Furthermore, three suspension lugs arranged in an isosceles triangle are provided on one side of the frame.

[0011] Furthermore, a protective cover is installed on the frame to cover the spraying pump, which is connected to the hydraulic motor drive.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This solution uses two vertically hinged wing rods to achieve horizontal deployment and vertical folding of the two spray booms. While ensuring the working efficiency of the sprayer, it also facilitates narrow passage of the sprayer and reduces space limitations during use. At the same time, the wing rods can be locked in both horizontally deployed and vertically folded states by automatically engaging with the V-shaped groove using a locking pin. To unlock, simply pull the locking pin away from the V-shaped groove. The structure is highly stable, easy to operate, and allows for frequent switching between the two states.

[0014] 2. This solution allows the spray boom to be raised using a pole, facilitating spraying operations and providing space for vertical folding; the sprayer can be securely connected to an external power platform via three suspension lugs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first structure of a folding sprayer.

[0016] Figure 2 This is a schematic diagram of the second structure of a folding sprayer.

[0017] Figure 3 This is a partial structural diagram of the bottom of the wing rod.

[0018] Figure 4 This is a schematic diagram of the vertical hinge joint of the wing rod.

[0019] The components are as follows: 1. Frame, 2. Wing rod, 3. Spray bar, 4. Nozzle, 5. Hose, 6. Spray pump, 7. Medicine tank, 8. Shaft, 9. Sleeve, 10. Locking pin, 11. V-groove, 12. Sliding groove, 13. Sliding ring, 14. Fixing ring, 15. Compression spring, 16. Upright pole, 17. Suspension lug, 18. Protective cover, 19. Hydraulic motor, 20. Connecting lug, 21. Connecting block. Detailed Implementation

[0020] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0021] like Figures 1 to 4As shown, the folding sprayer of this solution includes a frame 1, with wing rods 2 vertically hinged to both sides of the frame 1. Spray rods 3 are embedded in the wing rods 2. Several nozzles 4 are arranged at intervals along the extension direction of the spray rods 3. Both spray rods 3 are connected to the spray pump 6 through hoses 5. The spray pump 6 is connected to the pesticide tank 7.

[0022] Uprights 16 are provided on both sides of the top of the frame 1, and two wing rods 2 are vertically hinged to the upper ends of the two uprights 16 respectively; the height of the spray bar 3 can be raised by the uprights 16 to facilitate spraying operations, and at the same time, it provides space for vertical folding.

[0023] The upper end of the pole 16 is provided with a connecting lug 20, and a rotating shaft 8 is provided on the connecting lug 20. One end of the wing rod 2 is provided with a connecting block 21, and the end of the connecting block 21 is provided with a sleeve 9. The sleeve 9 is rotatably sleeved on the rotating shaft 8. A slot is provided on the outer side wall of the sleeve 9. A locking pin 10 is movably provided on the frame 1 to engage with the slot and lock the wing rod 2. The slot is a V-shaped groove 11 with a 90-degree included angle. When the locking pin 10 engages with the V-shaped groove 11, the end face and side wall of the locking pin 10 abut against the two groove surfaces of the V-shaped groove 11 respectively to lock the sleeve 9, thereby locking the wing rod 2 and the spray bar 3.

[0024] The frame 1 is provided with a sliding groove 12 for the locking pin 10 to pass through. A sliding ring 13 is provided in the middle of the locking pin 10, which slides in contact with the inner side wall of the sliding groove 12. A fixing ring 14 is provided at the end of the sliding groove 12 away from the wing rod 2. A compression spring 15 is provided between the fixing ring 14 and the sliding ring 13. The compression spring 15 can provide a driving force for the locking pin 10, so that when the sleeve 9 rotates to the V-groove 11 and the locking pin 10 are aligned, the locking pin 10 can automatically extend into the V-groove 11 to realize the automatic engagement of the locking pin 10 and the V-groove 11, thereby locking the wing rod 2. When it is necessary to unlock, the locking pin 10 can be pulled out of the V-groove 11. Its structure has strong stability and is easy to operate.

[0025] There are two V-grooves 11, and the two V-grooves 11 are arranged at a 90-degree angle around the sleeve 9. When the locking pin 10 engages with the two V-grooves 11 respectively, the wing rod 2 is in a horizontally extended state and a vertically folded state respectively, thereby realizing the horizontal extension and vertical folding of the two spray rods 3. When the wing rod 2 is in the horizontally extended state, several nozzles 4 are set vertically downward. This ensures the working efficiency of the sprayer while facilitating the narrow passage of the sprayer and reducing the space limitation when the sprayer is used.

[0026] As an optional implementation, three suspension lugs 17 arranged in an isosceles triangle are provided on one side of the frame 1, so that the sprayer of this solution can be stably connected to the external power platform through the three suspension lugs 17.

[0027] As an optional implementation, the frame 1 is provided with a protective cover 18 for covering the spraying pump 6, and the spraying pump 6 is connected to the hydraulic motor 19.

Claims

1. A folding sprayer, characterized in that, The device includes a frame, with wing rods vertically hinged to both sides of the frame. Spray rods are embedded in the wing rods, and several nozzles are spaced apart along the extension direction of the spray rods. Both spray rods are connected to a spraying pump via hoses, and the spraying pump is connected to a pesticide tank. The frame is provided with a rotating shaft, and one end of the wing rod is provided with a sleeve. The sleeve is rotatably sleeved on the rotating shaft. A groove is provided on the outer side wall of the sleeve. A locking pin is movably provided on the frame to engage with the groove and lock the wing rod.

2. The folding sprayer according to claim 1, characterized in that, The slot is a V-shaped slot with a 90-degree angle. When the locking pin engages with the V-shaped slot, the end face and side wall of the locking pin abut against the two slot surfaces of the V-shaped slot, respectively.

3. The folding sprayer according to claim 2, characterized in that, The number of V-grooves is two, and the two V-grooves are arranged at 90 degrees in the circumferential direction of the sleeve.

4. The folding sprayer according to claim 2, characterized in that, The frame is provided with a sliding groove for the pin to pass through. The middle part of the pin is provided with a sliding ring that slides in contact with the inner sidewall of the sliding groove. The end of the sliding groove away from the wing rod is provided with a fixing ring. A compression spring is provided between the fixing ring and the sliding ring.

5. The folding sprayer according to claim 1, characterized in that, Uprights are provided on both sides of the top of the frame, and the two wing rods are vertically hinged to the upper ends of the two uprights respectively.

6. The folding sprayer according to claim 1, characterized in that, Three suspension lugs arranged in an isosceles triangle are provided on one side of the frame.

7. The folding sprayer according to claim 1, characterized in that, The frame is equipped with a protective cover for covering the spraying pump, which is connected to a hydraulic motor.