A branch and leaf trimming device for orchards

Abstract

This utility model provides an orchard branch and leaf pruning device, relating to the field of fruit tree pruning technology. It includes a gripping rod with a telescopic locking mechanism inside. The telescopic locking mechanism includes a sliding block, the outer side of which is slidably sleeved with the inner wall of the gripping rod. An installation groove is formed on the inner bottom wall of the gripping rod, and a spiral elastic wire is fixedly installed on the inner bottom wall of the installation groove. One end of the spiral elastic wire is fixedly installed with the lower end of the sliding block. Through the telescopic locking mechanism, the spiral elastic wire and locking groove adapt to different tree heights. The press-type locking operation is simple. The pruning mechanism uses an L-shaped hook to accurately hook branches, and a servo electric cylinder drives the cutter to quickly cut. It eliminates the need for a highly stable grip, avoiding accidental contact with surrounding branches. The combination of these two features not only prevents sawdust and dust from affecting the operator's vision, improving operational convenience and accuracy, and reducing unnecessary damage to fruit trees, but also adapts to complex canopy pruning, offering convenient operation and reducing labor intensity and operational error rates.

Description

Technical Field

[0001] This utility model relates to the field of fruit tree pruning technology, and in particular to a branch and leaf pruning device for orchards. Background Technology

[0002] As fruit trees age, their canopies expand, resulting in excessive branches and leaves. This inevitably leads to consequences such as dense outer canopies and hollow inner canopies, premature tree decline, severe alternate bearing, and reduced fruit yield and quality. Therefore, regular pruning of fruit trees is necessary. Fruit tree pruning is a technical measure that involves removing a portion of the fruit tree's vegetative organs to adjust the canopy structure and renew the branch composition. Fruit tree pruning requires the use of fruit tree branch and leaf pruning devices. Existing fruit tree branch and leaf pruning devices use a motor to drive a saw blade to rotate, and the rotating saw blade can prune excess branches and leaves.

[0003] For example, a Chinese patent document discloses a branch and leaf pruning device for orchard planting (publication number: CN221264512U). Although this patent uses a power mechanism and protective covers, after pruning, the moving rod is stored inside the support cylinder, so that the mounting seat contacts the top of the support cylinder. Then the power mechanism works, driving the two protective covers to move in opposite directions, so that the two protective covers merge. After the two protective covers merge, the pruning saw blade is located inside the protective cover. Under the action of the protective cover, the pruning saw blade can be wrapped, thereby protecting the pruning saw blade, extending the service life of the pruning saw blade, and also preventing the pruning saw blade from cutting the workers.

[0004] However, when using a saw blade to prune fruit trees, the high-speed rotation of the blade generates a large amount of sawdust and dust. These impurities fall continuously from the pruning point under gravity, easily entering the operator's eyes and nasal cavity, causing eye discomfort and respiratory irritation. This necessitates frequent hand wiping and interruptions in the pruning operation. Furthermore, when pruning dense fruit tree branches, the circular cutting area created by the rotating saw blade makes it easy for operational errors to occur, resulting in the saw blade damaging or even cutting off branches that do not need pruning, thus causing considerable inconvenience in its use. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the problem that dust and sawdust spilled during fruit tree pruning with saw blades not only interfere with operators but also easily damage surrounding branches.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A branch and leaf pruning device for orchards includes a gripping rod, wherein a telescopic locking mechanism is provided inside the gripping rod; The telescopic locking mechanism includes a sliding block located inside the grip rod. The outer side of the sliding block slides in conjunction with the inner wall of the grip rod. The inner bottom wall of the grip rod has an installation groove. A spiral elastic wire is fixedly installed in the installation groove. The extension end of the spiral elastic wire is fixedly installed with the lower end of the sliding block. A telescopic rod is fixedly connected to the upper end of the sliding block. One end of the telescopic rod extends outward through the grip rod. The surface of the telescopic rod also has multiple travel grooves extending along its axial direction. The extension end of the telescopic rod is equipped with a trimming mechanism.

[0007] Preferably, the inner wall of one side of the travel groove is provided with locking grooves arranged in a linear array, and the grip rod is fixedly connected to the outside of the mounting block, and the mounting block is provided with a mounting cavity inside.

[0008] Preferably, the mounting cavity has a through groove on the side near the grip rod, one end of the through groove is connected to the inside of the grip rod, a movable block is slidably sleeved on the inner wall of the mounting cavity, and a locking rod is fixedly connected to the back of the movable block.

[0009] Preferably, one end of the locking rod passes through the through groove and extends into the interior of the gripping rod, and the extended end of the locking rod is slidably connected to the inner wall of one of the locking grooves. A return spring is fixedly connected to one side of the moving block, and one end of the return spring is fixedly connected to the inner wall of one side of the mounting cavity.

[0010] Preferably, a movable rod is fixedly connected to one side of the movable block where the reset spring is installed. The extended end of the movable rod passes through the mounting block and is fixedly connected to a pressing block. An anti-slip sleeve is fixedly fitted to the gripping end of the gripping rod, and a control button is fixedly installed on the outside of the gripping rod.

[0011] Preferably, the trimming mechanism includes a mounting housing, the lower end of which is fixedly connected to the upper end of the telescopic rod, a storage groove is provided at the upper end of the mounting housing, and a servo electric cylinder is fixedly installed on the inner bottom wall of the mounting housing.

[0012] Preferably, a cutter is fixedly connected to the piston rod of the servo electric cylinder, one end of the cutter extends into the interior of the storage groove, and an L-shaped hook is fixedly connected to the upper end of the mounting housing, with the cutter corresponding to the L-shaped hook.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the telescopic locking mechanism incorporates a spiral elastic wire and a locking groove to accommodate different tree heights. The press-type locking operation is simple, and the pruning mechanism uses an L-shaped hook to precisely hook branches. A servo electric cylinder drives the cutter to quickly cut the branches, eliminating the need for a highly stable grip and preventing accidental contact with surrounding branches. The combination of these two features not only prevents sawdust and dust from affecting the operator's vision, improving operational convenience and accuracy, and reducing unnecessary damage to fruit trees, but also adapts to complex canopy pruning, offering convenient operation and reducing labor intensity and operational error rates. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of an orchard pruning device provided by this utility model; Figure 2 Exploded view of the gripping rod structure of an orchard pruning device provided by this utility model; Figure 3 A perspective view of the mounting block structure of an orchard pruning device provided by this utility model; Figure 4 An exploded view of the installation housing structure of an orchard branch and leaf pruning device provided by this utility model.

[0015] Legend: 1. Grip rod; 2. Sliding block; 21. Mounting slot; 22. Spiral elastic guide wire; 23. Telescopic rod; 24. Stroke slot; 25. Locking slot; 26. Mounting block; 27. Mounting cavity; 28. Through slot; 29. ​​Moving block; 210. Locking rod; 211. Return spring; 212. Movable rod; 213. Pressing block; 214. Anti-slip sleeve; 215. Control button; 3. Mounting housing; 31. Storage slot; 32. Servo electric cylinder; 33. Cutter; 34. L-shaped hook. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Example like Figures 1-4 As shown, this utility model provides a technical solution: an orchard branch and leaf pruning device, including a gripping rod 1 and a telescopic locking mechanism inside the gripping rod 1. The telescopic locking mechanism has a sliding block 2 as the core moving part, which is slidably sleeved with the inner wall of the gripping rod 1 to provide stable guidance for the extension and retraction of the telescopic rod 23.

[0021] The inner bottom wall of the gripping rod 1 has a mounting groove 21, in which a spiral elastic wire 22 is fixedly installed. The upper end of the spiral elastic wire 22 is fixed to the lower end of the sliding block 2. The spiral elastic wire 22 has good elastic extension and power transmission functions. When the telescopic rod 23 needs to be pulled outward, the sliding block 2 slides along the inner wall of the gripping rod 1, and the spiral elastic wire 22 extends synchronously. This can not only provide a buffer for the movement of the telescopic rod 23, but also ensure the continuity of the circuit connection, and ensure that the control signal and power are stably transmitted to the upper trimming mechanism.

[0022] The locking grooves 25 arranged in a linear array on one side of the travel groove 24 on the telescopic rod 23, together with the locking component in the external mounting block 26 of the grip rod 1, form a precise locking structure.

[0023] The mounting cavity 27 inside the mounting block 26 is connected to the inside of the grip rod 1 through the through groove 28. The moving block 29 slides inside the mounting cavity 27. The locking rod 210 on the back of the moving block 29 can extend into the grip rod 1 and cooperate with the locking groove 25.

[0024] When the pressing block 213 is pressed, the movable rod 212 drives the moving block 29 to move, stretching the return spring 211, and the locking rod 210 disengages from the locking groove 25, releasing the locking of the telescopic rod 23; when the pressing block 213 is released, the return spring 211 pushes the moving block 29 to reset, and the locking rod 210 engages with the corresponding locking groove 25, completing the locking.

[0025] The device can flexibly adjust the length of the telescopic pole 23 according to the height of the fruit tree. The operation only requires three steps: press, stretch, and release. No additional tools are needed. It is suitable for pruning scenarios with different tree heights and effectively expands the pruning operation range.

[0026] The trimming mechanism above the telescopic rod 23 is mounted on the housing 3, which is fixed to the upper end of the telescopic rod 23, providing a mounting base for the servo electric cylinder 32 and the cutter 33.

[0027] The storage slot 31 at the upper end of the mounting housing 3 can store the cutter 33 when it is not in operation, preventing accidental damage to operators or fruit trees. The servo electric cylinder 32 installed on the inner bottom wall of the mounting housing 3 serves as the power source for the cutter 33, and can precisely control the extension and retraction of the cutter 33. When the piston rod of the mounting housing 3 extends, it pushes the cutter 33 to quickly extend from the storage slot 31, and immediately retracts and resets after cutting the branch, so that the exposure time of the cutter 33 is extremely short, effectively reducing the risk of accidentally touching surrounding branches.

[0028] The L-shaped hook 34 on the upper part of the housing 3 enables precise hanging of branches with its unique structure. The operator can gently push the device to make the branch to be pruned fit into the opening of the L-shaped hook 34. Utilizing the limiting effect of the L-shaped structure, there is no need for continuous manual force to fix the branch. Even if the hand shakes slightly, the hook can still stably hang the branch, reducing the requirements for grip stability.

[0029] In dense canopy pruning, individual branches that need pruning can be precisely located, effectively protecting adjacent healthy fruit-bearing branches and reserve branches, ensuring the normal growth and fruit-bearing capacity of fruit trees, and improving the precision of orchard pruning operations and the quality of fruit tree maintenance.

[0030] It should be noted that the electrical components mentioned above are all existing mature technologies. Appropriate models and power can be selected based on the technical knowledge of those skilled in the art, and they are controlled by PLC controllers, which are existing mature technologies. Therefore, they will not be described in detail again.

[0031] The working process of this utility model: Step 1: Before use, connect the external power source to the control button 215 of the device. Establish a circuit path between the control button 215 and the servo electric cylinder 32 through the spiral elastic wire 22 and the internal wires of the telescopic rod 23 to ensure stable signal and power transmission and power supply for the trimming operation. Press the pressing block 213 on the mounting block 26. The pressing block 213 drives the moving block 29 in the mounting cavity 27 to move through the movable rod 212, stretching the return spring 211 and causing the locking rod 210 on the back of the moving block 29 to disengage from the telescopic rod. The length lock is released by locking the groove 25 on one side of the travel groove 24 on the rod 23. The telescopic rod 23 is then pulled outwards, and the sliding block 2 slides along the inner wall of the gripping rod 1. The spiral elastic guide wire 22 extends synchronously as the telescopic rod 23 is pulled out. The extension length of the telescopic rod 23 is adjusted according to the height requirements of the fruit tree. After adjustment, the pressing block 213 is released, and the return spring 211 pushes the moving block 29 back to its original position. The locking rod 210 then engages with the corresponding locking groove 25, completing the length locking of the telescopic rod 23. This method is suitable for pruning trees of different heights, is easy to operate, and requires no tools. Step two: Hold the anti-slip sleeve 214, with your palm against the anti-slip sleeve 214 on the outside of the grip rod 1. The anti-slip texture increases friction, improves grip stability, and facilitates precise operation. Align the L-shaped hook 34 on the upper end of the mounting housing 3 with the branch to be pruned, and gently push the device to make the branch engage with the opening of the L-shaped hook 34. The L-shaped structure of the L-shaped hook 34 holds the branch, eliminating the need for continuous manual force to fix it, thus reducing the requirement for grip stability. Press the control button 215 to power the servo electric cylinder 32. The piston rod of 32 extends, pushing the cutter 33 out of the storage slot 31 inside the mounting housing 3 to quickly cut off the caught branches. After cutting, the cutter 33 immediately retracts to its original position to avoid prolonged exposure of the cutter 33, prevent accidental contact with surrounding branches, and ensure pruning accuracy. When pruning a single branch in a dense canopy, it effectively protects adjacent healthy branches. After the operation is completed, press the pressing block 213 again to release the locking of the telescopic rod 23 and retract the telescopic rod 23 into the grip rod 1, reducing the size of the equipment and making it easy to store and carry.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A branch and leaf pruning device for orchards, comprising a holding bar (1), characterized in that: The grip rod (1) is provided with a telescopic locking mechanism inside; The telescopic locking mechanism includes a sliding block (2) located inside the grip rod (1). The outer side of the sliding block (2) is slidably engaged with the inner wall of the grip rod (1). The inner bottom wall of the grip rod (1) is provided with an installation groove (21). A spiral elastic wire (22) is fixedly installed in the installation groove (21). The extension end of the spiral elastic wire (22) is fixedly installed with the lower end of the sliding block (2). A telescopic rod (23) is fixedly connected to the upper end of the sliding block (2). One end of the telescopic rod (23) extends outward through the grip rod (1). The surface of the telescopic rod (23) is also provided with multiple travel grooves (24) extending along its axial direction. The extension end of the telescopic rod (23) is provided with a trimming mechanism.

2. A branch and leaf pruning device for orchards according to claim 1, characterized in that: The inner wall of one side of the travel groove (24) is provided with locking grooves (25) arranged in a linear array. The grip rod (1) is fixedly connected to the outside of the mounting block (26), and the mounting block (26) is provided with a mounting cavity (27).

3. A branch and leaf pruning apparatus for orchards according to claim 2, characterized in that: The mounting cavity (27) has a through groove (28) on the side near the grip rod (1). One end of the through groove (28) is connected to the inside of the grip rod (1). A moving block (29) is slidably sleeved on the inner wall of the mounting cavity (27). A locking rod (210) is fixedly connected to the back of the moving block (29).

4. A branch and leaf pruning apparatus for orchards according to claim 3, characterized in that: One end of the locking rod (210) passes through the through groove (28) and extends into the interior of the gripping rod (1), and the extended end of the locking rod (210) is slidably connected to the inner wall of one of the locking grooves (25). A return spring (211) is fixedly connected to one side of the moving block (29), and one end of the return spring (211) is fixedly connected to the inner wall of one side of the mounting cavity (27).

5. A branch and leaf pruning apparatus for orchards according to claim 4, characterized in that: The movable block (29) is also fixedly connected to a movable rod (212) on one side where the reset spring (211) is installed. The extension end of the movable rod (212) passes through the mounting block (26) and is fixedly connected to a pressing block (213). The gripping end of the gripping rod (1) is fixedly fitted with an anti-slip sleeve (214). A control button (215) is fixedly installed on the outside of the gripping rod (1).

6. The branch and leaf pruning apparatus for orchard use according to claim 1, characterized by: The trimming mechanism includes a mounting housing (3), the lower end of which is fixedly connected to the upper end of the telescopic rod (23), a storage groove (31) is provided at the upper end of the mounting housing (3), and a servo electric cylinder (32) is fixedly installed on the inner bottom wall of the mounting housing (3).

7. A branch and leaf pruning apparatus for orchards as claimed in claim 6, wherein: A cutter (33) is fixedly connected to the piston rod of the servo electric cylinder (32). One end of the cutter (33) extends into the interior of the storage groove (31). An L-shaped hook (34) is fixedly connected to the upper end of the mounting housing (3). The cutter (33) corresponds to the L-shaped hook (34).

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