Simple high-altitude pruning and trunk cutting device

Abstract

The utility model discloses a simple high-altitude pruning and trunk cutting device which comprises a telescopic rod and a guide rope with a wire saw arranged in the middle. A wire saw guide device is fixedly arranged on the rod head of the telescopic rod; a steering shaft is arranged on the wire saw guide device on the left side of the opening of the U-shaped structure, and a stop hook is arranged on the wire saw guide device on the right side of the opening of the U-shaped structure; one end of the guide rope is connected with a steering rod capable of rotating bidirectionally; an arc-shaped clamping groove is formed in the lower surface of the left end of the steering rod capable of rotating in the two directions. The arc-shaped clamping groove is matched with the steering shaft; a clamping rod is arranged at the right end of the steering rod capable of rotating bidirectionally; according to the utility model, a wire saw reciprocating motion mode is adopted, so that the working intensity is greatly reduced, meanwhile, standing tree branches or treetops at different positions can be quickly and accurately positioned by utilizing the guide device, and an operator can quickly position the wire saw to a corresponding position for cutting.

Description

Technical Field

[0001] The utility model relates to the technical field of standing tree maintenance, cultivation, picking and danger removal, in particular to a simple high-altitude pruning and trunk cutting device. Background Technique

[0002] During the growth of existing standing trees, it is necessary to timely observe the growth conditions of the standing trees, and the staff should timely prune or tip cut the relevant standing trees to facilitate the healthy growth of the standing trees. Or when researching relevant standing trees in a region, when scientific research personnel are researching a certain standing tree, sometimes it is necessary to cut off its branches for collection to facilitate the later sorting of relevant data of the standing trees, etc., or to remove the danger of the dead branches (trunks) of the standing trees, or when collecting seeds or fruits of some plants, it is necessary to cut off the corresponding branches.

[0003] For short standing trees, pruning or tip cutting can be directly carried out manually with scissors; or when the terrain is relatively flat and there is no dense understory vegetation around, and it is convenient for personnel to climb, relevant personnel can also carry out pruning, trunk cutting or tip cutting on them by means of ladder building or tree climbing. However, for high-altitude standing trees in complex areas or the branches of relevant standing trees with high strength or being too thick, using the above-mentioned schemes will cause certain dangers and high working intensity.

[0004] The prior art discloses a high-branch shear, whose working principle is that the grip-type high-branch shear is applicable to the pruning of branches and the picking of fruits in orchards in all seasons, without being restricted by seasonality, passability, and regionality. It solely relies on human power to drive the wire through the pinching of the handle. The wire is hinged to the moving blade, and pruning is completed through the pinching and releasing action. When a person holds the handle and moves from position a to position b, the moving blade is driven to move from position a to position b; the telescopic rod can be adjusted to the corresponding length according to the height of the working object. The specific structure is that the adjustable grip high-branch shear consists of 4 parts: a handle, a telescopic rod, a transmission mechanism, and scissors. The telescopic rod is divided into 3 adjustable telescopic parts, and stepless adjustment can be achieved according to the number of holes punched on the telescopic rod. 8 working heights can be realized through the telescopic cooperation of 3 parts of the rod, and it can reach 5m when fully opened; adding the height of a person, the maximum working range can reach 6m. After being stored, the shortest length of the rod is 1.8m, which is convenient for carrying. The adjustment component is used to control the extension and contraction of the telescopic rod. The middle section of the 3 parts of the telescopic rod is fixed, and the other two sections extend upward and downward respectively with the middle part as the reference (regulator a controls the upward extension of the first section, and regulator b controls the downward extension of the third section). The transmission rod is inside the telescopic rod and is connected to the wire of the handle. It is also divided into 3 parts to cooperate with the extension and contraction of the telescopic rod. By relying on the hand force to pinch, the branches at high places can be cut off. The blade is equipped with a plastic toothed clip, which can clamp the branches during pruning and also clamp the picked fruits. The pruning blade can rotate to increase the visual angle of the operator; the essence of this technology is to use the wire between the handle and the blade to complete the shearing function by controlling the handle.

[0005] Chinese Patent CN204031908U discloses a pair of scissors for high-altitude pruning. Its solution includes a hollow round tube, pruning scissors, and a fixed pulley. Among them, a top fixed pulley and a bottom fixed pulley are welded near both ends of the inner cavity of the hollow round tube. The upper end of the hollow round tube 1 is covered with a pruning scissors cavity that accommodates the pruning scissors in an open state. The open state of the pruning scissors is the normal open state. There is a spring between the two handles of the pruning scissors, and the function of the spring is to keep the pruning scissors in an open state. One of the pruning scissors handles is fixed in the pruning scissors cavity. A hollow support frame is vertically welded near the bottom position of the hollow round tube. A crossbar is provided at the top of the hollow support frame. The crossbar is connected to a handle. One end of the handle near the hollow support frame 7 is connected to a steel wire. The steel wire passes through the bottom fixed pulley and is connected to the top fixed pulley. The steel wire fixes the other pruning scissors handle. When the handle is pressed down, the steel wire drives the other handle of the pruning scissors to complete the shearing action.

[0006] The top fixed pulley and the bottom fixed pulley are welded on the same side of the inner cavity of the hollow round tube. The hollow round tube 1 and the pruning scissors cavity are connected by screws. Fixing by screws can facilitate maintenance and repair more conveniently. The hollow round tube, the pruning scissors cavity, the directional wheel, and the hollow support frame 8 are all made of stainless steel, which can be more durable and extend the service life.

[0007] In the above-mentioned prior art, pruning or felling of standing trees is carried out by means of scissors. Although high-altitude operations can be achieved, when pruning or felling relatively thick standing trees or overly thick branches, it is quite difficult for workers. Content of the Utility Model

[0008] The purpose of the present utility model is to provide a simple high-altitude pruning and felling device. This solution completely abandons the existing scissor-like method and adopts the reciprocating motion of a wire saw to achieve it, greatly reducing the work intensity. At the same time, by using a guiding device, rapid and precise positioning of standing tree branches or tree tops at different positions can be realized. The operator quickly positions the wire saw at the corresponding position for cutting, so as to solve the problems of safety and high work intensity caused by the climbing or scissor method in the above-mentioned background technology.

[0009] To achieve the above purpose, the present utility model provides the following technical solution: a simple high-altitude pruning and felling device, including a telescopic rod and a guiding rope with a wire saw arranged in the middle.

[0010] A wire saw guiding device is fixedly arranged on the rod head of the telescopic rod.

[0011] The wire saw guiding device includes a guiding main body and a rotatable steering rod that can rotate in both directions. The guiding main body is integrally of a U-shaped structure. The rotatable steering rod that can rotate in both directions is placed at the U-shaped opening of the guiding main body, and the tail of the rotatable steering rod that can rotate in both directions is connected to the top end of the guiding rope.

[0012] The guiding main body is of a double-row structure. A steering shaft is arranged between the double-row rods at the left end of the U-shaped opening, and catch hooks are arranged on both double-row rods at the right end of the U-shaped opening.

[0013] An arc-shaped card slot is arranged on the lower surface of the left end of the rotatable steering rod that can rotate in both directions, and a clamping rod is arranged at the right end of the rotatable steering rod that can rotate in both directions. Among them, the arc-shaped card slot cooperates with the steering shaft to enable the right end of the rotatable steering rod that can rotate in both directions to rotate clockwise downward, and the clamping rod cooperates with the catch hook to enable the left end of the rotatable steering rod that can rotate in both directions to rotate clockwise upward.

[0014] As a further solution of the present utility model: the space formed by the gap between the double-row structures of the guiding main body is used for the placement, removal or turning of the rotatable steering rod that can rotate in both directions.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model adopts the reciprocating motion of a wire saw to achieve pruning or felling of standing trees at high altitudes, greatly reducing the work intensity and improving the safety of operators.

[0017] 2. The wire saw guiding device and the bidirectionally rotatable steering rod can be used to quickly and accurately locate the branches or treetops of standing trees at different positions, and quickly position the wire saw at the corresponding position for cutting. That is, the steering shaft and the retaining hook on the wire saw guiding device are correspondingly matched with the arc-shaped card slot arranged on the lower surface of the left end of the bidirectionally rotatable steering rod and the clamping rod arranged at the right end of the bidirectionally rotatable steering rod. During use, the arc-shaped card slot is snapped into the corresponding steering shaft, and the clamping rod is snapped into the retaining hook and the pre-tightening guiding rope is passed through, so that the arc-shaped card slot presses against the steering shaft from the outside to the inside, and the clamping rod presses against the retaining hook from the inside to the outside. When the wire saw guiding device approaches the place where pruning or trunk cutting is required, the branch is placed on the side of the clamping rod of the bidirectionally rotatable steering rod, and then the wire saw guiding device is pushed forcefully. Under the action of the external force, the bidirectionally rotatable steering rod will rotate clockwise downward around the steering shaft at this time, so that the branch is clamped into the U-shaped structure in the wire saw guiding device. Then, the branch of the standing tree is closely attached to the groove side of the bidirectionally rotatable steering rod, and then the wire saw guiding device is pulled by an external force. At this time, the bidirectionally rotatable steering rod will rotate clockwise upward around the clamping rod, so that the branch is taken out of the U-shaped structure in the wire saw guiding device. At the same time, the guiding rope on the bidirectionally rotatable steering rod is successfully wound around the corresponding branch of the standing tree, so as to achieve the purpose of pruning or trunk cutting the branch with the wire saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the main structural view of the present invention;

[0019] Figure 2 is the schematic diagram of the connection and cooperation of each structure in the wire saw guiding device of the present invention;

[0020] Figure 3 is the schematic diagram of the driving mechanism of the present invention.

[0021] In the figure: 1. Telescopic rod; 2. Wire saw guiding device; 1.4. Retaining hook; 1.5. Steering shaft; 3. Guiding rope; 4. Wire saw; 5. Bidirectionally rotatable steering rod; 5.1. Arc-shaped card slot; 5.2. Clamping rod; 6. Guiding body; 7. Driving mechanism; 7.1. Motor; 7.2. Motor drive shaft; 7.3. Turntable; 7.4. Pulley; 7.5. Connecting column; 7.6. Pre-tightening device; 7.7. Guide wheel; 7.8. Pre-tightening spring; 8. Branch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] The following embodiments are used for pruning or topping the standing trees during their growth process to facilitate their healthy growth; or when studying a certain type of standing trees in a region, for facilitating the subsequent collation of relevant data of the standing trees, etc., cutting off their branches for collection; or for risk removal of the dead branches (trunks) of the standing trees, or for truncating the branches during the collection of seeds, fruits, etc. of some plants.

[0024] Please refer to Figure 1-2 , this embodiment provides a technical solution: a simple high-altitude pruning and trunk-cutting device, including a telescopic rod 1 and a guiding rope 3 with a wire saw 4 arranged in the middle;

[0025] A wire saw guiding device 2 is fixedly arranged on the rod head of the telescopic rod 1;

[0026] The wire saw guiding device 2 includes a guiding main body 6 and a rotatable steering rod 5 that can rotate in both directions. The guiding main body 6 is of a U-shaped structure as a whole. The rotatable steering rod 5 is placed at the U-shaped opening of the guiding main body 6 and can rotate in both directions, and the tail of the rotatable steering rod 5 is connected to the top end of the guiding rope 3. The guiding main body 6 is of a double-row structure. A steering shaft 1.5 is arranged between the double-row rods at the left end of the U-shaped opening, and retaining hooks 1.4 are arranged on both double-row rods at the right end of the U-shaped opening. An arc-shaped card slot 5.1 is arranged on the lower surface of the left end of the rotatable steering rod 5, and a clamping rod 5.2 is arranged at the right end of the rotatable steering rod 5. Among them, the arc-shaped card slot 5.1 cooperates with the steering shaft 1.5 to enable the right end of the rotatable steering rod 5 to rotate clockwise downward, and the clamping rod 5.2 cooperates with the retaining hook 1.4 to enable the left end of the rotatable steering rod 5 to rotate clockwise upward. The space formed by the gap between the double-row structures of the left support rod 1.2 and the right support rod 1.3 is for the placement, removal, or turning of the rotatable steering rod 5.

[0027] In use, first adjust the length of the telescopic rod 1 (generally set with a three-section telescopic structure, and the adjacent telescopic sections can be connected by threads to maximize space saving during later placement). The length is generally about 3 - 10 m for high-altitude tree branches. Then, the operator lifts the telescopic rod 1 and brings the rotatable steering rod 5, which can rotate in two directions, close to the branches of the corresponding standing tree, and makes the rotatable steering rod 5 on the side of the clamping rod 5.2 press tightly against the branches. Then, pre-tighten the guide rope 3 and simultaneously slowly and forcefully push against the branches, so that the rotatable steering rod 5 can rotate inwards around the steering shaft 1.5. At this time, the corresponding branches will slowly be caught in the U-shaped structure of the wire saw guiding device 2. Then, move the telescopic rod 1 so that the branches are in contact with the rotatable steering rod 5 on the side of the arc-shaped card slot 5.1. Then, pre-tighten the guide rope 3 and simultaneously slowly and forcefully pull back the telescopic rod. Then, the corresponding branches push the rotatable steering rod 5 outwards, so that the rotatable steering rod 5 can rotate outwards around the clamping rod 5.2. Then, the branches leave the U-shaped structure and at the same time the guide rope 3 completes the winding around the corresponding branches. Retrieve the telescopic rod 1 and bring the rotatable steering rod 5 back to the operator's hand, that is, the operator can control both ends of the guide rope 3. Then, manually pull the guide rope 3 back and forth, thereby driving the reciprocating cutting of the wire saw 4 to achieve the purpose of pruning or cutting off the corresponding branches. To save manual labor intensity, this embodiment also provides a driving device for the guide rope, which can replace the action of manually pulling the guide rope 3 back and forth. The structure of this driving device is as follows: Please refer to Figure 3 , after the guide rope 3 completes the winding around the corresponding treetop or branch 8, both ends of the guide rope 3 are respectively fixed on the connecting columns 7.5 on the corresponding turntables 7.3. The actions of the two turntables 7.3 for stretching / or scaling the guide rope 3 are just opposite. At the same time, under the action of the pre-tightening device 7.6 and the pre-tightening spring 7.8, the wire saw 4 can ensure a certain pre-pressure to achieve the reciprocating cutting of the treetop or branch. And under the action of the pre-tightening device 7.6 and the pre-tightening spring 7.8, the guide ropes 3 on both sides of the treetop or branch are allowed to have a certain tensile strength within different length ranges (so as to ensure the pre-pressure of the wire saw 4 on the treetop or branch).

[0028] The standard parts used in this embodiment can all be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A simple high-altitude pruning and trunk cutting device, comprising a telescopic rod (1) and a guide rope (3) with a wire saw (4) arranged in the middle; characterized in that: A wire saw guide device (2) is fixedly arranged on the rod head of the telescopic rod (1); The wire saw guide device (2) comprises a guide body (6) and a bidirectionally rotatable steering rod (5), wherein the guide body (6) is a U-shaped structure as a whole, the bidirectionally rotatable steering rod (5) is arranged at the U-shaped opening of the guide body (6), and the tail of the bidirectionally rotatable steering rod (5) is connected to the top end of the guide rope (3); The guide body (6) is a double-row structure, a steering shaft (1.5) is arranged between the double-row rods at the left end of the U-shaped opening, and a blocking hook (1.4) is arranged on each of the double-row rods at the right end of the U-shaped opening; The lower surface of the left end of the bidirectionally rotatable steering rod (5) is provided with an arc-shaped clamping groove (5.1), and the right end of the bidirectionally rotatable steering rod (5) is provided with a clamping rod (5.2); wherein the arc-shaped clamping groove (5.1) cooperates with the steering shaft (1.5) to enable the right end of the bidirectionally rotatable steering rod (5) to rotate clockwise downward, and the clamping rod (5.2) cooperates with the blocking hook (1.4) to enable the left end of the bidirectionally rotatable steering rod (5) to rotate clockwise upward.

2. A simple high-altitude pruning and trunk cutting device according to claim 1, characterized in that: The gap between the double-row structure of the wire saw guide device (2) forms a space for placing, removing or turning a bidirectionally rotatable turning rod (5).

Images