Labor-saving multi-section high branch scissors
By improving the cord retraction and limiting mechanism of the high-branch shears, the problems of excessively large blade holder structure and unstable adjustment of the telescopic rod were solved, achieving labor-saving cutting and stable adjustment, thus improving the convenience and practicality of the high-branch shears.
Patent Information
- Application Number
- CN202423272970.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing high-branch shears achieve labor-saving by rotating the long lever arm of the blade, but this results in an excessively large blade holder structure, making it difficult to position branches in the gap between the blades, and the telescopic rod is difficult to adjust stably, affecting work efficiency and practicality.
The telescopic rod employs a take-up mechanism and a limiting mechanism. It achieves labor-saving take-up by means of a take-up wheel, a rotating handle, a traction rope, a fixed pulley, a movable pulley, and a spring structure. It achieves limiting and fixing of the telescopic rod by means of a fixed frame, a movable bolt, a pressure block, a twist cap, and a fixing nut structure.
It improves the convenience and stability of high-branch shears, avoids the impact of an overly large blade holder structure on cutting, ensures stable adjustment of the telescopic rod, and enhances the practicality of the device.
Smart Images
Figure CN223600426U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high branch shears technical field, concretely is a labor saving type's multistage high branch shears. BACKGROUND
[0002] In the growth process of trees, in order to prevent the tree branch too luxuriant, affect the growth of fruit, or because of strong wind and hurt pedestrians, or for increasing the whole horticultural landscape's aesthetic feeling, will carry out pruning to tree branch mostly, the existing pruning mode is through high branch shears and carries out pruning to the redundant tree branch.
[0003] The existing device mainly controls the rotation of the rotating knife through the pull rope, and the existing technology is similar to the labor-saving high branch shears, and the structure of the patent No. CN2282333Y includes a blade, one end of the blade has a clamping tooth, a push block is arranged on the pull rod, a clamping piece is pivotally arranged on the upper end of the knife holder, when the user pulls the pull rope to drive the pull rod to swing, the push block on the pull rod drives the clamping tooth to make the blade rotate, the clamping piece is clamped on the other clamping tooth, the blade is fixed and segmented cutting, after pulling the pull rope for many times, the blade is segmented and cut off the tree branch in the hook cutting opening, the larger force can be changed into several smaller forces to cut off the tree branch, but the device still has room for optimization.
[0004] The existing device mainly realizes labor saving through the long force arm of the rotating knife, so that the structure of the knife holder of part of the device is too large, thereby causing part of the knife holder to be difficult to place the tree branch at the gap of the knife opening, and part of the device is difficult to limit and fix the telescopic rod, thereby causing the length of the telescopic rod and the height of the knife holder to be inconvenient to stably adjust, and reducing the working efficiency and practicability of the device, therefore, in order to solve the above problems, a labor-saving multistage high branch shears is provided. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a labor-saving multistage high branch shears to solve the problem that the existing device in the prior art mentioned in the background technology mainly realizes labor saving through the long force arm of the rotating knife, so that the structure of the knife holder of part of the device is too large, thereby causing part of the knife holder to be difficult to place the tree branch at the gap of the knife opening, and part of the device is difficult to limit and fix the telescopic rod, thereby causing the length of the telescopic rod and the height of the knife holder to be inconvenient to stably adjust.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a labor-saving multistage high branch shears, comprising a handle, the left side top of the handle is fixedly connected with a wheel support, the top of the handle is fixedly connected with a telescopic rod in the middle, the top end of the telescopic rod is fixedly connected with a knife holder, the right side middle of the knife holder is fixedly connected with a fixed knife, and the outer wall middle of the knife holder is movably connected with a rotating knife.
[0007] The inner wall of the wheel frame is provided with a take-up mechanism, the take-up mechanism comprises a take-up wheel, the middle shaft rear end of the take-up wheel is movably connected to the rear side of the inner wall of the wheel frame, the outer wall of the telescopic rod is provided with a limiting mechanism, the limiting mechanism comprises a fixing frame, the left side of the fixing frame is fixedly connected to the top of the outer wall of the telescopic rod outer cylinder.
[0008] Preferably, the middle shaft front end of the take-up wheel penetrates the wheel frame and is fixedly connected with a rotating handle, and the outer wall of the take-up wheel is fixedly connected and wound with a traction rope.
[0009] Preferably, the other end of the traction rope is fixedly connected to the left bottom of the knife holder, a fixed pulley is fixedly connected to the left lower side of the knife holder, a movable pulley is fixedly connected to the left bottom of the rotating knife, and the traction rope is sequentially attached to the outer walls of the fixed pulley and the movable pulley.
[0010] Preferably, the top left side of the rotating knife is fixedly connected with a spring, and the other end of the spring is fixedly connected to the top of the knife holder.
[0011] Preferably, the side wall of the fixing frame is inserted with a movable bolt, the left end of the movable bolt is movably connected with a pressing block, and the bottom of the pressing block is slidably connected to the bottom of the inner wall of the fixing frame.
[0012] Preferably, the right end of the movable bolt penetrates the fixing frame and is fixedly connected with a twist cover, the outer wall of the movable bolt is sleeved with a fixed nut, and the left side of the fixed nut is fixedly connected to the right middle part of the fixing frame.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1. The utility model discloses a take-up mechanism, a rotating handle, a traction rope, a fixed pulley, a movable pulley and a spring are arranged in the take-up mechanism, the take-up wheel is driven to limit rotation by rotating the rotating handle clockwise, the traction rope is wound by the take-up wheel, the rotating knife is driven to limit rotation by the traction rope through the fixed pulley and the movable pulley, the spring is stretched by the rotating knife, and the rotating knife cuts branches in cooperation with the fixed knife, so that the traction rope is saved, the lever effect of the rotating handle can replace the lever effect of the rotating knife for part of the device, the structure of the knife seat is prevented from being too large and affecting cutting, and the convenience and practicality of the device are improved.
[0015] 2. The utility model discloses a limiting mechanism, a fixing frame, a movable bolt, a pressing block, a twist cover and a fixed nut are arranged in the limiting mechanism, the movable bolt is driven to limit rotation by rotating the twist cover clockwise, the movable bolt is limited by the fixed nut, the pressing block is slid to the left in the inner wall of the fixing frame by the movable bolt, the telescopic rod is limited and braked, the telescopic rod can be fixed and limited for part of the device, the length of the telescopic rod is conveniently and stably adjusted, and the stability and practicality of the device are improved. DRAWINGS
[0016] Figure 1 It is the structure front side view perspective drawing of the utility model;
[0017] Figure 2 It is the local structure front view perspective drawing of the utility model knife rest and take-up mechanism;
[0018] Figure 3 It is the local structure front view perspective drawing of the utility model handle and take-up mechanism;
[0019] Figure 4 It is the local structure front view perspective drawing of the utility model telescopic rod and limiting mechanism.
[0020] In the drawing: 11, handle; 12, wheel frame; 13, telescopic rod; 14, knife rest; 15, fixed knife; 16, rotating knife; 2, take-up mechanism; 21, take-up wheel; 22, rotating handle; 23, traction rope; 24, fixed pulley; 25, movable pulley; 26, spring; 3, limiting mechanism; 31, fixed frame; 32, movable bolt; 33, pressing block; 34, twist cover; 35, fixed nut. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0022] Please refer to Figures 1-4 The utility model provides an embodiment:
[0023] A labor-saving multi-section high branch shears, including handle 11, the left side top of handle 11 is fixedly connected with wheel frame 12, the top of handle 11 is fixedly connected with telescopic rod 13 in the middle, the top of telescopic rod 13 is fixedly connected with knife rest 14, the right side middle of knife rest 14 is fixedly connected with fixed knife 15, the outer wall middle of knife rest 14 is movably connected with rotating knife 16;
[0024] The inner wall of the wheel frame 12 is provided with a take-up mechanism 2, which comprises a take-up wheel 21, the rear end of the central shaft of the take-up wheel 21 being movably connected to the rear side of the inner wall of the wheel frame 12, the front end of the central shaft of the take-up wheel 21 penetrating the wheel frame 12 and being fixedly connected with a rotating handle 22, and the outer wall of the take-up wheel 21 being fixedly wound with a traction rope 23. Through this design, the rotating handle 22 drives the take-up wheel 21 to limit rotation, so that the take-up wheel 21 can easily wind the traction rope 23. The other end of the traction rope 23 is fixedly connected to the left bottom of the tool holder 14. The left bottom of the tool holder 14 is fixedly connected with a fixed pulley 24. The bottom left side of the rotating knife 16 is fixedly connected with a movable pulley 25. The traction rope 23 is sequentially attached to the outer walls of the fixed pulley 24 and the movable pulley 25. Through this design, the traction rope 23 is powered through the pulley block to save effort. The top left side of the rotating knife 16 is fixedly connected with a spring 26, and the other end of the spring 26 is fixedly connected to the top of the tool holder 14. Through this design, the spring 26 drives the rotating knife 16 to automatically reset.
[0025] The outer wall of the telescopic rod 13 is provided with a limiting mechanism 3, which comprises a fixed frame 31, the left side of the fixed frame 31 being fixedly connected to the outer wall of the top of the telescopic rod 13 outer cylinder, the side wall of the fixed frame 31 being inserted with a movable bolt 32, the left end of the movable bolt 32 being movably connected with a pressing block 33, the bottom of the pressing block 33 being slidably connected to the inner wall of the bottom of the fixed frame 31. Through this design, the telescopic rod 13 drives the pressing block 33 to limit sliding, so that the pressing block 33 brakes the inner rod of the telescopic rod 13. The right end of the movable bolt 32 penetrates the fixed frame 31 and is fixedly connected with a twist cover 34. The outer wall of the movable bolt 32 is sleeved with a fixed nut 35, and the left side of the fixed nut 35 is fixedly connected to the right middle part of the fixed frame 31. Through this design, the twist cover 34 drives the movable bolt 32 to limit rotation, so that the movable bolt 32 slides left and right in the inner wall of the fixed nut 35.
[0026] Working principle: when the traction rope 23 needs to be powered to take up the line, first rotate the handle 22 clockwise, the handle 22 drives the take-up wheel 21 to limit rotation, the take-up wheel 21 drives the traction rope 23 to take up and wind, the traction rope 23 drives the rotating knife 16 to limit rotation in sequence through the fixed pulley 24 and the movable pulley 25, the rotating knife 16 stretches the spring 26 and cooperates with the fixed knife 15 to cut the branches, realizing the power-saving take-up operation of the traction rope 23.
[0027] When the telescopic rod 13 needs to be limited and braked, first rotate the twist cover 34 clockwise, the twist cover 34 drives the movable bolt 32 to limit rotation, the movable bolt 32 is limited by the fixed nut 35, so that the movable bolt 32 drives the pressing block 33 to slide left in the inner wall of the fixed frame 31, realizing the limiting and braking operation of the telescopic rod 13. The operation ends here.
[0028] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings shown in the specification and the above description; however, any person skilled in the art can make slight changes, modifications and equivalent changes of the present application within the scope of the technical scheme of the present application, and the equivalent embodiments of the present application are still within the protection scope of the technical scheme of the present application.
Claims
1. A labor-saving multi-section high-branch shears, comprising a handle (11), characterized in that: A wheel frame (12) is fixedly connected to the top left side of the handle (11), a telescopic rod (13) is fixedly connected to the middle top of the handle (11), a knife holder (14) is fixedly connected to the top of the telescopic rod (13), a fixed knife (15) is fixedly connected to the middle right side of the knife holder (14), and a rotating knife (16) is movably connected to the middle outer wall of the knife holder (14). The inner wall of the wheel frame (12) is provided with a take-up mechanism (2), which includes a take-up wheel (21). The rear end of the take-up wheel (21) is movably connected to the rear side of the inner wall of the wheel frame (12). The outer wall of the telescopic rod (13) is provided with a limiting mechanism (3), which includes a fixing frame (31). The left side of the fixing frame (31) is fixedly connected to the top of the outer wall of the outer cylinder of the telescopic rod (13).
2. The labor-saving multi-section high-branch pruning shears according to claim 1, characterized in that: The front end of the central shaft of the take-up reel (21) passes through the wheel frame (12) and is fixedly connected to a rotating handle (22). The outer wall of the take-up reel (21) is fixed and wrapped with a traction rope (23).
3. The labor-saving multi-section high-branch pruning shears according to claim 2, characterized in that: The other end of the traction rope (23) is fixedly connected to the bottom left side of the knife holder (14). A fixed pulley (24) is fixedly connected to the lower left side of the knife holder (14). A movable pulley (25) is fixedly connected to the bottom left side of the rotating knife (16). The traction rope (23) is attached to the outer wall of the fixed pulley (24) and the movable pulley (25) in sequence.
4. The labor-saving multi-section high-branch pruning shears according to claim 1, characterized in that: A spring (26) is fixedly connected to the top left side of the rotating blade (16), and the other end of the spring (26) is fixedly connected to the top of the blade holder (14).
5. The labor-saving multi-section high-branch pruning shears according to claim 1, characterized in that: The side wall of the fixed frame (31) is provided with a movable bolt (32), and the left end of the movable bolt (32) is movably connected to a pressure block (33). The bottom of the pressure block (33) is slidably connected to the bottom of the inner wall of the fixed frame (31).
6. The labor-saving multi-section high-branch pruning shears according to claim 5, characterized in that: The right end of the movable bolt (32) passes through the fixed frame (31) and is fixedly connected to the twist cap (34). The outer wall of the movable bolt (32) is fitted with a fixing nut (35). The left side of the fixing nut (35) is fixedly connected to the middle right side of the fixed frame (31).