Branch pruning device with clamping function

Abstract

The utility model relates to afforesting pruning technical field especially a kind of branch pruning device with clamping function, including telescopic link, its upper end end part is provided for the shearing unit of shearing to branch, its lower end handle position is provided with adjusting unit, the shearing unit is sheared to branch by the adjusting unit control;Clamping unit, it is connected with swing arm upper end, the swing arm lower end is rotatably connected with telescopic link upper preset position, and the preset position between swing arm and the preset position on telescopic link is provided with tension spring.The utility model adopts clamping unit by self-adapting embrace branch, and high-altitude branch is prevented from swinging due to wind force, operating force;Swing arm layout makes clamping unit first fix branch and then shears, reduces positioning deviation, improves operation efficiency, and clamping unit still fixes branch after shearing, prevents falling and injures personnel, damages facilities.

Description

Technical Field

[0001] This utility model relates to the field of greening pruning technology, and in particular to a branch pruning device with clamping function. Background Technology

[0002] Pruning tree branches at height and near power lines is very common, but existing pruning tools have many shortcomings: First, they lack stable branch clamping structures, and tree branches at height are easily affected by wind and operating force, making it difficult for the cutting unit to accurately align with the cutting position, resulting in low work efficiency; Second, unsecured branches are prone to falling freely after being cut, posing a safety hazard of injuring people and damaging facilities below; Third, when working near power lines, the tools lack isolation and protection designs, and the cutting unit is prone to accidentally touching the power lines, causing a risk of electric shock; Fourth, some simple clamping structures cannot adapt to branches of different diameters, resulting in poor versatility. Utility Model Content

[0003] The present invention aims to solve the above-mentioned defects and provide a branch pruning device with clamping function.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve its technical problem is: a branch pruning device with clamping function, including a telescopic rod, a cutting unit for cutting branches is provided at the upper end of the rod, and an adjustment unit is provided at the lower handle position of the rod, and the cutting unit is controlled to cut the branches through the adjustment unit. A clamping unit is connected to the upper end of a swing arm, the lower end of which is rotatably connected to a preset position on a telescopic rod, and a tension spring is provided between the preset position on the swing arm and the preset position on the telescopic rod. The clamping unit includes a U-shaped bracket, a V-shaped block is axially movable inside the U-shaped bracket, a thrust elastic element is connected between the inner bottom surface of the U-shaped bracket and the bottom surface of the V-shaped block, the two free ends of the U-shaped bracket are rotatably connected to one end of a pull rod, and a tension spring is connected between a preset position on the U-shaped bracket and a corresponding preset position on each pull rod.

[0005] Further improvements include the adjustment unit comprising a roller shaft and a motor mounted on a telescopic rod. The roller shaft is rotatably disposed within the telescopic rod. The output end of the motor is coaxially connected to the roller shaft. A preset position on the roller shaft is connected to one end of a metal wire, and the other end of the metal wire is connected to a shearing unit.

[0006] Further improvements include the shearing unit comprising a support portion disposed at the end of the telescopic rod and two shearing blades, the two shearing blades being distributed in a cross pattern, a rotating shaft disposed within the support portion passing through a shaft hole at the cross position of the two shearing blades, so that the two shearing blades can rotate relative to each other around the rotating shaft, a spreading spring connecting the ends of the two shearing blades away from the shearing edge, and the ends of the two shearing blades away from the shearing edge being respectively connected to a metal wire.

[0007] Further improvements include the addition of a guide roller that is rotatably disposed within the bearing portion.

[0008] Further improvements include making the distance from the connection point between the swing arm and the telescopic rod to the shearing unit less than the length of the swing arm.

[0009] The beneficial effects of this utility model are: the clamping unit in this design adaptively embraces the tree branch, preventing the tree branch from swaying due to wind or operating force at high altitudes; the swing arm layout allows the clamping unit to fix the tree branch before cutting, reducing positioning deviation and improving work efficiency; the clamping unit still fixes the tree branch after cutting, preventing it from falling and injuring personnel or damaging facilities. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is the front view of this utility model; Figure 2 This is an assembly drawing of the clamping unit in this utility model; Figure 3 yes Figure 1 Place the image in the middle (A). In the diagram, 1-adjustment unit, 2-swing arm, 3-telescopic rod, 4-tension spring, 5-clamping unit, 6-shearing unit; 101-Motor, 102-Roller, 103-Metal wire; 501-Pull rod, 502-Tension spring, 503-V-block, 504-Thrust elastic element, 505-U-shaped bracket; 601-Shearing blade, 602-Rotating shaft, 603-Bearing part, 604-Wire guide roller, 605-Spreading spring. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the scope of protection of this utility model.

[0013] refer to Figure 1 , Figure 2 and Figure 3 A tree branch pruning device with clamping function includes a telescopic rod 3, with a cutting unit 6 for cutting branches at its upper end and an adjustment unit 1 at its lower handle position. The cutting unit 6 can be controlled to cut branches by adjusting the adjustment unit 1. The clamping unit 5 is connected to the upper end of the swing arm 2. The lower end of the swing arm 2 is rotatably connected to a preset position on the telescopic rod 3. A tension spring 4 is provided between the preset position on the swing arm 2 and the preset position on the telescopic rod 3. The clamping unit 5 and the shearing unit 6 are brought closer together by the tension spring 4.

[0014] In a specific embodiment, the clamping unit 5 includes a U-shaped bracket 505, within which a V-shaped block 503 is axially movably disposed. A thrust elastic element 504 is connected between the inner bottom surface of the U-shaped bracket 505 and the bottom surface of the V-shaped block 503. The thrust elastic element 504 provides axial thrust to ensure that the V-shaped block 503 moves stably within the U-shaped bracket 505 and can adapt to the diameter of the tree branch. The two free ends of the U-shaped bracket 505 are rotatably connected to one end of a pull rod 501. A tension spring 502 connects the preset position on the U-shaped bracket 505 to the corresponding preset position on each pull rod 501. The tension spring 502 provides elastic holding force, causing the two pull rods 501 to rotate synchronously towards the inside of the U-shaped bracket 505. The two pull rods 501, together with the V-shaped block 503, can clamp and fix the branches from different directions, which not only prevents the branches from shaking during the cutting process and facilitates the precise cutting of the cutting unit 6, but also effectively isolates the cutting unit 6 from the wire when working near the wire, preventing accidental contact with the wire.

[0015] In a specific embodiment, the adjustment unit 1 includes a roller 102 and a motor 101 mounted on the telescopic rod 3. The roller 102 is rotatably disposed inside the telescopic rod 3. The output end of the motor 101 is coaxially connected to the roller 102. A preset position on the roller 102 is connected to one end of a metal wire 103. The other end of the metal wire 103 is connected to the shearing unit 6. The motor 101 drives the roller 102 to rotate, so that the metal wire 103 is wound around the roller 102, thereby controlling the shearing unit 6 to shear the branches.

[0016] In a specific embodiment, the shearing unit 6 includes a bearing part 603 disposed at the end of the telescopic rod 3 and two shearing blades 601. The two shearing blades 601 are distributed in a cross shape. A rotating shaft 602 disposed in the bearing part 603 passes through the shaft hole at the intersection of the two shearing blades 601, so that the two shearing blades 601 can rotate relative to each other around the rotating shaft 602, thereby realizing the shearing action. A spreading spring 605 is connected between the ends of the two shearing blades 601 away from the shearing edge. In the natural state, the elastic force of the spreading spring 605 can keep the shearing edge of the two shearing blades 601 in an open state. The ends of the two shearing blades 601 away from the shearing edge are respectively connected to the metal wire 103. When the metal wire 103 is wound up by the adjusting unit 1, the two shearing blades 601 can be pulled to overcome the elastic force of the spreading spring 605 and move closer to each other, so that the shearing edge closes to complete the shearing. When the metal wire 103 is released, the shearing edge automatically returns to open under the action of the spreading spring 605, waiting for the next shearing.

[0017] In a specific embodiment, a guide roller 604 is rotatably disposed inside the bearing part 603, and the metal wire 103 is wound around the guide roller 604, which can guide the metal wire 103.

[0018] In a specific embodiment, the distance from the connection point of the swing arm 2 and the telescopic rod 3 to the shearing unit 6 is less than the length of the swing arm. This design allows the clamping unit 5 to pre-clamp the branches, thereby facilitating the subsequent shearing by the shearing unit 6.

[0019] In a specific embodiment, the telescopic rod 3 is provided with a fluorocarbon insulating and weather-resistant coating on its outer layer, the clamping unit 5 is provided with a wear-resistant modified acrylic insulating coating on its surface, and the shearing unit 6 is provided with a high-density alumina ceramic coating on its surface. Through the above-mentioned targeted coating design, the device’s key conductive risk components are fully covered, and a continuous insulating protective barrier is constructed from the material surface level, effectively blocking the current conduction path and meeting the electric shock prevention requirements for working near power lines.

[0020] Working principle: Adjust the telescopic rod 3 to a suitable length according to the actual needs such as working height and branch distance. With the help of the swing arm 2, align the clamping unit 5 with the position of the branch to be clamped. After pushing the clamping unit 5, the branch pushes the pull rod 501 to open the pull rod 501. At this time, the tension spring 502 is compressed. When the branch comes into contact with the V-block 503, it pushes the V-block 503 to move, compressing the thrust elastic element 504. After the branch passes through the pull rod 501, the pull rod 501 and the V-block 503 cooperate to hug and clamp the branch. The branches on the branch also play an axial limiting role, making the clamping more stable. The telescopic rod 3 can be moved to move the entire branch away from the power line. The cutting unit 6 can be moved along the branch axis to the predetermined cutting position. At this time, the clamping unit 5 remains in the original clamping position, the tension spring 4 extends, and the cutting unit 6 can be controlled by the adjustment unit 1 to cut the branch. This design makes cutting branches more precise and safer.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A branch pruning device with clamping function, characterized in that, It includes a telescopic rod (3), with a cutting unit (6) for cutting branches at its upper end and an adjustment unit (1) at its lower handle position. The cutting unit (6) is controlled by the adjustment unit (1) to cut the branches. A clamping unit (5) is connected to the upper end of the swing arm (2), and the lower end of the swing arm (2) is rotatably connected to a preset position on the telescopic rod (3). A tension spring (4) is provided between the preset position on the swing arm (2) and the preset position on the telescopic rod (3). The clamping unit (5) includes a U-shaped bracket (505), and a V-shaped block (503) is axially movable inside the U-shaped bracket (505). A thrust elastic element (504) is connected between the inner bottom surface of the U-shaped bracket (505) and the bottom surface of the V-shaped block (503). The two free ends of the U-shaped bracket (505) are rotatably connected to one end of a pull rod (501). A tension spring (502) is connected between a preset position on the rod of the U-shaped bracket (505) and a corresponding preset position on the rod of each pull rod (501).

2. The branch pruning device with clamping function as described in claim 1, characterized in that: The adjustment unit (1) includes a roller (102) and a motor (101) mounted on a telescopic rod (3). The roller (102) is rotatably mounted inside the telescopic rod (3). The output end of the motor (101) is coaxially connected to the roller (102). A preset position on the roller (102) is connected to one end of a metal wire (103). The other end of the metal wire (103) is connected to the shearing unit (6).

3. A branch pruning device with clamping function as described in claim 1, characterized in that: The shearing unit (6) includes a bearing part (603) disposed at the end of the telescopic rod (3) and two shearing blades (601). The two shearing blades (601) are distributed in a cross shape. A rotating shaft (602) disposed in the bearing part (603) passes through the shaft hole at the cross position of the two shearing blades (601) so that the two shearing blades (601) can rotate relative to each other with the rotating shaft (602) as the center. A spreading spring (605) is connected between the ends of the two shearing blades (601) away from the shearing edge. The ends of the two shearing blades (601) away from the shearing edge are respectively connected to the metal wire (103).

4. A branch pruning device with clamping function as described in claim 3, characterized in that: A guide roller (604) is rotatably disposed inside the bearing part (603).

5. A branch pruning device with clamping function as described in claim 1, characterized in that: The distance from the connection point of the swing arm (2) and the telescopic rod (3) to the shearing unit (6) is less than the length of the swing arm.

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