An adjustable swing arm structure for an agricultural sprayer

Abstract

This utility model proposes an adjustable swing arm structure for an agricultural sprayer, including two vertically arranged support rods and a moving rod; it also includes a guide rod disposed between the two support rods, with a nut threaded onto the guide rod; spraying swing arms are hinged to both ends of the moving rod, and support bars are hinged to the spraying swing arms; each end of the moving rod has a downwardly extending support arm, one end of the support bar is hinged to the spraying swing arm, and the other end of the support bar is detachably connected to the support arm; the length of the support arm is greater than or equal to the length of the spraying swing arm, and the spraying swing arm can be folded and stored inside the support arm. In use, the spraying swing arm can be opened and rotated to a horizontal position; when not in use, it can also be folded and stored inside the support arm for protection; the height of the spraying swing arm during use can also be adjusted by adjusting the height of the moving rod. The technical solution of this application has a simple overall structure, low manufacturing cost, and is simple and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically to an adjustable swing arm structure for an agricultural sprayer. Background Technology

[0002] In agricultural production, sprayers are crucial equipment for controlling pests and diseases and ensuring the healthy growth of crops. Their performance and rational design are of paramount importance for improving agricultural production efficiency, reducing labor intensity, and ensuring the quality and safety of agricultural products. With the development of large-scale and modern agriculture, higher demands are being placed on the operational efficiency and convenience of sprayers.

[0003] Currently, there are various types of agricultural sprayers on the market. One common type of sprayer consists of a movable cart with a vertically mounted support frame. Spray pipes extend from the support frame to both sides. The cart also includes a pesticide storage tank and a pump to supply liquid to the spray pipes. This type of sprayer evenly sprays pesticide solution onto crops through the spray pipes to achieve pest and disease control.

[0004] However, existing sprayers of this type have revealed some problems in practical use. Because the spray hose is typically of a certain length to meet the needs of spraying over a large area, the protruding hose can cause considerable inconvenience in moving and storing the sprayer when it is not in use. For example, when moving the sprayer from one work area to another, the long hose is prone to colliding with surrounding obstacles, causing damage, increasing maintenance costs, and potentially affecting the progress of subsequent spraying operations. When storing the sprayer, the excessively long hose occupies a significant amount of space, hindering storage and management and reducing space utilization. To address the problem of the spray hose affecting the movement and storage of the sprayer when not in operation, some sprayers currently employ a folding and retracting method for the hose. The technical problem this application aims to solve is to provide an adjustable spray hose structure that differs from existing technologies. Utility Model Content

[0005] In view of the problems pointed out in the background art, this utility model proposes an adjustable swing arm structure for agricultural sprayers to solve the above-mentioned technical problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An adjustable swing arm structure for an agricultural sprayer includes two vertically arranged support rods.

[0008] It also includes a movable rod, with connecting holes at both ends of the movable rod for sliding connection with the two support rods;

[0009] It also includes a guide rod disposed between the two support rods, a through hole on the movable rod that is slidably connected to the guide rod, and a nut threadedly connected to the guide rod, with the nut located on the lower side of the movable rod;

[0010] The two ends of the moving rod are respectively hinged to spraying swing arms, and the spraying swing arms are hinged to support bars. The two ends of the moving rod are respectively provided with downwardly extending support arms. One end of the support bar is hinged to the spraying swing arm, and the other end of the support bar is detachably connected to the support arm.

[0011] The length of the support arm is greater than or equal to the length of the spraying arm, and the spraying arm can be folded and stored inside the support arm.

[0012] By adopting the above technical solution, the spraying arm can be a long tube structure capable of spraying liquid pesticide, and the spraying arm is connected to the liquid supply device. In use, the spraying arm rotates upwards to open, and is supported and fixed by support bars, at which point the support bars are connected to the support arm. When not in use, the spraying arm can rotate downwards and retract into the support arm, forming a protective layer for the spraying arm; at this point, the connection between the support bars and the support arm is disassembled.

[0013] The movable rod can be adjusted in the up and down direction to adjust the height of the spraying arm. The nut is located on the lower side of the movable rod to position the movable rod after it has been adjusted.

[0014] The present invention is further configured such that the other end of the support bar is provided with a positioning hole one, and the support arm is provided with a positioning hole two that penetrates both sides thereon. A locking pin is inserted into the positioning hole one and the positioning hole two to fix the support bar and the support arm in place.

[0015] By adopting the above technical solution, the connection between the support bar and the support arm can be easily disassembled and assembled by inserting and removing the locking pin.

[0016] The present invention is further configured such that the cross-section of the support arm is U-shaped.

[0017] By adopting the above technical solution, the spraying arm can be folded and stored inside the U-shaped support arm, thus protecting the spraying arm and preventing it from being damaged by bumps when not in use.

[0018] The present invention is further configured to include a crossbar connected to the upper ends of the two support rods.

[0019] By adopting the above technical solutions, the stability and structural strength of the overall structure of the two support rods are enhanced.

[0020] The present invention is further configured to include a base plate, and the lower end of the support rod is fixedly connected to the base plate.

[0021] By adopting the above technical solution, the entire mechanism can be fixedly installed on the base plate and the movable trolley.

[0022] The present invention is further configured such that the support arm is arranged perpendicularly to the moving rod.

[0023] The present invention is further configured such that the length of the support arm is less than the length of the support rod.

[0024] By adopting the above technical solution, space is provided for the vertical adjustment of the moving rod and support.

[0025] The present invention is further provided that the lower end of the support arm is provided with a sliding sleeve that is slidably connected to the support rod.

[0026] By adopting the above technical solution, the sliding sleeve can enhance the stability of the support arm as it moves with the moving rod, and can also enhance the stability of the connection between the support arm and the support rod.

[0027] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0028] The adjustable swing arm structure for an agricultural sprayer provided by this utility model allows the spraying swing arm to be opened and rotated to a horizontal position during use; when not in use, it can be folded and stored inside the support arm to protect the spraying swing arm; the height of the spraying swing arm during use can also be adjusted by adjusting the height of the moving rod. The technical solution of this application has a simple overall structure, low manufacturing cost, and is simple and convenient to operate. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0031] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0032] Figure 3 This is a partial structural schematic diagram of the present invention.

[0033] Figure 4 This is a cross-sectional view of the present invention.

[0034] Figure 5This is a schematic diagram of the moving rod and support arm of this utility model.

[0035] The following are the labels in the attached diagram: support rod 1, moving rod 2, connecting hole 3, guide rod 4, through hole 5, nut 6, spraying swing arm 7, support bar 8, support arm 9, positioning hole one 10, positioning hole two 11, locking pin 12, crossbar 13, base plate 14, sliding sleeve 15. Detailed Implementation

[0036] 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.

[0037] For reference as follows Figure 1-5 The present invention will be described as follows:

[0038] Example: An adjustable swing arm structure for an agricultural sprayer includes two vertically arranged support rods 1, with the support rods 1 serving as the basic support components. It also includes a crossbar 13 connected to the upper ends of the two support rods 1, enhancing the overall stability and structural strength of the two support rods 1.

[0039] It also includes a movable rod 2, with connecting holes 3 at both ends of the movable rod 2 that are slidably connected to the two support rods 1; this connection method allows the movable rod 2 to move freely along the vertical direction of the support rods 1, providing a basis for the subsequent height adjustment of the spraying swing arm 7.

[0040] It also includes a guide rod 4 disposed between the two support rods 1. The guide rod 4 is fixedly connected to the crossbar 13. The movable rod 2 is provided with a through hole 5 that is slidably connected to the guide rod 4, so that the movable rod 2 and the guide rod 4 form a slidable connection. The guide rod 4 plays a guiding and limiting role in the movement of the movable rod 2, ensuring that the movable rod 2 remains stable during the up and down movement and avoiding deviation.

[0041] A nut 6 is threaded onto the guide rod 4, and the nut 6 is located on the lower side of the moving rod 2. When the moving rod 2 is adjusted to the appropriate position, the nut 6 is turned to move it to the lower side of the moving rod 2, which can form a support and positioning for the moving rod 2 on the lower side, so that the moving rod 2 cannot move downward, and at the same time, the moving rod 2 will not move upward under the action of gravity.

[0042] The two ends of the moving rod 2 are respectively hinged to spraying arms 7. This hinged connection allows the spraying arms 7 to rotate around the end of the moving rod 2, thereby realizing the unfolding and folding operation of the spraying arms 7.

[0043] The spraying arm 7 adopts a long tube structure that can spray liquid pesticide and is connected to the liquid supply device, so that the liquid pesticide can be evenly sprayed to the target area during operation.

[0044] A support bar 8 is hinged to the spraying arm 7, and the two ends of the moving rod 2 are respectively provided with downwardly extending support arms 9. One end of the support bar 8 is hinged to the spraying arm 7, and the other end of the support bar 8 is detachably connected to the support arm 9.

[0045] When the spraying arm 7 is rotated upward to the working position (such as horizontal state), the support bar 8 is connected to the support arm 9 to support and fix the spraying arm 7, ensuring the stability of the spraying arm 7 during the spraying process; when it is necessary to store the spraying arm 7, the connection between the support bar 8 and the support arm 9 is released to realize the folding of the spraying arm 7.

[0046] The length of the support arm 9 is greater than or equal to the length of the spraying arm 7, and the spraying arm 7 can be folded and stored inside the support arm 9. This design allows the spraying arm 7 to be completely inserted into the support arm 9 when folded and stored, and the support arm 9 can effectively protect the spraying arm 7 from collisions with external objects during movement or storage and thus prevent damage.

[0047] The movable rod 2 is slidably connected to the support rod 1 through the connecting hole 3, and can move freely in the vertical direction under the guidance of the guide rod 4. When adjusting the height of the spraying arm 7, loosen the nut 6 on the guide rod 4, push the movable rod 2 up and down along the support rod 1 and the guide rod 4. When the spraying arm 7 reaches the required height, tighten the nut 6 to the lower side of the movable rod 2 to position the movable rod 2 in the current position, thereby realizing the adjustment of the height of the spraying arm 7 to adapt to the spraying needs of different crop heights.

[0048] When in use, rotate the spraying arm 7 upwards to open it to a suitable working angle (such as horizontal position), and then connect one end of the support bar 8 to the support arm 9. The spraying arm 7 is supported and fixed by the support bar 8. At this time, the spraying arm 7 can carry out spraying operations normally.

[0049] When not in use, disconnect the connection between the support bar 8 and the support arm 9, rotate the spraying arm 7 downwards to fold it into the support arm 9, and the support arm 9 protects the spraying arm 7 to reduce damage caused by external factors.

[0050] The overall structure features simple connections between components, primarily utilizing hinges, sliding connections, and threaded connections for coordinated operation, thus reducing manufacturing costs. During operation, the unfolding and folding of the spraying arm, as well as height adjustment, require no complex procedures, allowing operators to complete tasks quickly and improving work efficiency. Simultaneously, the support arm's protective function extends the service life of the spraying arm, reducing maintenance costs.

[0051] The other end of the support bar 8 is provided with a positioning hole 10, and the support arm 9 is provided with a positioning hole 21 that runs through both sides of it. A locking pin 12 is inserted into the positioning hole 10 and the positioning hole 211 to fix the support bar 8 and the support arm 9 together.

[0052] When it is necessary to fix the support bar 8 and the support arm 9 together, align the positioning hole 10 and the positioning hole 11, and then insert the locking pin 12 to fix them together. This connection method is completed by inserting and removing the locking pin 12, which is simple and quick to operate. When the spraying arm 7 is in operation, the locking pin 12 can reliably connect the support bar 8 and the support arm 9 together, ensuring that the support bar 8 provides stable support to the spraying arm 7 and preventing the spraying arm 7 from shifting position due to loose connection during spraying, which would affect the spraying effect. When it is necessary to fold the spraying arm 7, simply pull out the locking pin 12 to release the connection between the support bar 8 and the support arm 9. The operation is efficient and does not require complicated tools.

[0053] The cross-section of support arm 9 is U-shaped.

[0054] The U-shaped structure provides ample space, allowing the spraying arm 7 to be neatly positioned inside the U-shaped support arm 9 when folded and stored. The two side walls of the U-shape act as barriers and protect the spraying arm 7 from both sides. Even during the movement or storage of the sprayer, the U-shaped support arm 9 absorbs the force first, effectively preventing the spraying arm 7 from directly contacting and being damaged by external objects. This further enhances the protection of the spraying arm 7 and extends its service life.

[0055] It also includes a base plate 14, and the lower end of the support rod 1 is fixedly connected to the base plate 14.

[0056] The base plate 14 provides a stable mounting foundation for the entire adjustable swing arm structure, allowing the entire mechanism to be fixedly installed to the movable trolley via the base plate 14. The connection with the trolley via the base plate 14 increases the contact area, making the structure more secure. During the movement and operation of the sprayer, it reduces the shaking of the entire mechanism, ensuring the stability of the spraying swing arm 7 during operation. It also facilitates the adaptation and installation of the entire structure with different types of trolleys.

[0057] The support arm 9 is perpendicular to the moving rod 2. This perpendicular relationship allows the support arm 9 to provide stable support and movement space for the spraying arm 7 during folding and unfolding, ensuring the standardized movement trajectory of the spraying arm 7 and avoiding interference with other components.

[0058] The length of support arm 9 is less than the length of support rod 1.

[0059] This size design provides ample space for the vertical adjustment of the moving rod 2 and the support arm 9, ensuring that the moving rod 2 can drive the support arm 9 and the spraying swing arm 7 to adjust their height within a wide range to meet the spraying needs of crops at different heights. The adjustment range will not be limited by the support rod 1 due to the excessive length of the support arm 9.

[0060] The lower end of the support arm 9 is provided with a sliding sleeve 15 that is slidably connected to the support rod 1.

[0061] The sliding sleeve 15 is fitted onto the support rod 1. When the moving rod 2 drives the support arm 9 to move up and down, the sliding sleeve 15 can slide synchronously along the support rod 1. This design increases the connection point between the support arm 9 and the support rod 1, disperses the force borne by the support arm 9, and effectively enhances the stability of the support arm 9 when it moves with the moving rod 2, preventing the support arm 9 from tilting or swaying during movement. At the same time, the sliding fit between the sliding sleeve 15 and the support rod 1 also enhances the overall stability of the connection between the support arm 9 and the support rod 1, further ensuring the structural reliability of the spraying swing arm 7 during operation and movement.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An adjustable swing arm structure for an agricultural sprayer, comprising two vertically arranged support rods, characterized in that: It also includes a movable rod, with connecting holes at both ends of the movable rod for sliding connection with the two support rods; It also includes a guide rod disposed between the two support rods, a through hole on the movable rod that is slidably connected to the guide rod, and a nut threadedly connected to the guide rod, with the nut located on the lower side of the movable rod; The two ends of the moving rod are respectively hinged to spraying swing arms, and the spraying swing arms are hinged to support bars. The two ends of the moving rod are respectively provided with downwardly extending support arms. One end of the support bar is hinged to the spraying swing arm, and the other end of the support bar is detachably connected to the support arm. The length of the support arm is greater than or equal to the length of the spraying arm, and the spraying arm can be folded and stored inside the support arm.

2. The adjustable swing arm structure of the agricultural pesticide spraying machine according to claim 1, wherein: The other end of the support bar is provided with a positioning hole one, and the support arm is provided with a positioning hole two that runs through both sides of it. A locking pin is inserted into the positioning hole one and the positioning hole two to fix the support bar and the support arm in place.

3. The adjustable swing arm structure of claim 1, wherein: The cross-section of the support arm is U-shaped.

4. The adjustable swing arm structure of claim 1, wherein: It also includes a crossbar that connects to the upper ends of the two support rods.

5. The adjustable swing arm structure of claim 1, wherein: It also includes a base plate, with the lower end of the support rod fixedly connected to the base plate.

6. The adjustable swing arm structure of claim 1, wherein: The support arm and the moving rod are arranged perpendicularly.

7. The adjustable swing arm structure of claim 1, wherein: The length of the support arm is less than the length of the support rod.

8. The adjustable swing arm structure of claim 1, wherein: The lower end of the support arm is provided with a sliding sleeve that is slidably connected to the support rod.

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