Labor saving pruning shears

Abstract

The utility model relates to scissor technical field especially, more particularly to a labor -saving pruning scissors. Its technical scheme includes fixed link, one end of fixed link is screwed and is connected with threaded sleeve, and the one end fixed setting of threaded sleeve has first cutting shear blade, the second cutting shear blade rotationally arranged on first cutting shear blade, one end of second cutting shear blade is provided with pull handle, one end rotationally arranged with pulley seat of pull handle, one end rotationally arranged with limit sleeve block of pulley seat, one end fixed setting with towrope of limit sleeve block, be provided with the adjusting assembly for adjusting the position of pull handle on second cutting shear blade, the guide seat of fixed link outer wall, be provided with the pressure assembly for pulling towrope on guide seat, fixed setting with fixed pulley seat of threaded sleeve outer wall. The utility model can change the length of force arm flexibly, need not exert greater holding force when facing thicker branch or wooden hard plant, reduce the operation difficulty, avoid the hand sore and muscle fatigue caused by long -term force.

Description

Technical Field

[0001] This utility model relates to the field of scissors technology, and in particular to a labor-saving trimming scissors. Background Technology

[0002] In various fields such as horticulture, agricultural planting, and greening maintenance, pruning shears are a core manual tool for trimming branches, cutting vines, and shaping plants. Due to their ease of operation, precise cutting, and portability, they are widely used in home gardening (potted plants), orchards (fruit tree branches), urban greening (shrub shaping), and removing redundant branches from vine crops in farmland. Existing pruning shears often use a welded, one-piece handle, which prevents adjustment for different usage scenarios. When dealing with thicker branches or hard-wooded plants, the fixed lever arm length requires users to apply greater gripping force to close the cutting blades, resulting in strenuous operation and potential hand pain and muscle fatigue from prolonged exertion, thus reducing work efficiency. Therefore, this invention proposes a labor-saving pruning shear. Utility Model Content

[0003] The purpose of this invention is to address the problem that in the background technology, the operating handles are mostly fixed by welding, which makes it impossible to adjust them according to the actual use scenario. When facing thicker branches or hard wood plants, the fixed lever arm length requires the user to apply more gripping force to drive the cutting blade to close. This not only makes operation laborious, but also easily leads to hand pain and muscle fatigue due to long-term force application, reducing work efficiency. Therefore, this invention proposes a labor-saving pruning shears.

[0004] The technical solution of this utility model: A labor-saving trimming shears includes: a fixed rod, one end of which is threadedly sleeved with a threaded sleeve, and one end of the threaded sleeve is fixedly provided with a first cutting blade; a second cutting blade rotatably disposed on the first cutting blade, one end of which is provided with a handle, one end of which is rotatably provided with a pulley seat, one end of which is rotatably provided with a limit block, one end of which is fixedly provided with a traction rope, and the second cutting blade is provided with an adjustment component for adjusting the position of the handle; a guide seat located on the outer wall of the fixed rod, and the guide seat is provided with a pressure application component for pulling the traction rope; a fixed pulley seat fixedly disposed on the outer wall of the threaded sleeve, and the traction rope is connected to the pressure application component in sequence through the fixed pulley seat and the pulley seat.

[0005] Optionally, the adjustment assembly includes a push knob rotatably mounted on the second cutting blade, one end of the push knob being fixedly provided with a threaded rod, the outer wall of the threaded rod being threadedly fitted with a threaded sleeve block, one end of the threaded sleeve block being fixedly provided with a connecting rod, and one end of the connecting rod being fixedly connected to the handle.

[0006] Optionally, the pressure application component includes a sliding sleeve that is slidably disposed on a guide seat, a fixed seat that is fixedly disposed on one side of the sliding sleeve, a pull rod that is rotatably disposed on the fixed seat, one end of the pull rod being fixedly connected to a traction rope, and a handle that is fixedly disposed on the other end of the pull rod.

[0007] Optionally, a first connecting seat is fixedly provided on the side wall of the first cutting blade, and a second connecting seat is fixedly provided on the side of the second cutting blade, with a spring provided between the first connecting seat and the second connecting seat.

[0008] Optionally, the first cutting blade is configured with an arc-shaped structure.

[0009] Optionally, a guide groove is provided on the second cutting blade, and the threaded sleeve block is configured with an "H" shape, and the threaded sleeve block is slidably connected to the guide groove.

[0010] Optionally, a groove is provided on one side of the guide seat, and a limit bolt is threaded through the sliding sleeve.

[0011] In summary, this application includes at least one of the following beneficial technical effects: This utility model adjusts the relative position of the handle and the second cutting blade by adjusting the structure of the push knob, threaded rod, threaded sleeve block and connecting rod in the component, thereby flexibly changing the lever arm length. When facing thicker branches or hard woody plants, it is not necessary to apply more gripping force, reducing the difficulty of operation and avoiding hand soreness and muscle fatigue caused by long-term force application. Furthermore, this utility model, through the sliding sleeve, fixed seat, pull rod and handle in the pressure application component, together with the fixed pulley seat, the transmission structure of the pulley seat and the traction rope, forms a force-saving transmission link, optimizes the direction of force application and the efficiency of force transmission, effectively reduces the gripping force required to drive the cutting blade to close, and improves the efficiency of pruning operations. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a labor-saving trimming shears; Figure 2 yes Figure 1 A schematic diagram of the disassembled structure of the pressure-applying component; Figure 3 yes Figure 1 A schematic diagram of the structure of the adjustment component; Figure 4 yes Figure 3 A schematic diagram of the split structure of the adjustment component.

[0013] Figure label: 1. Fixed rod; 2. Threaded sleeve; 3. First cutting blade; 4. Second cutting blade; 5. Pull handle; 6. Pulley seat; 7. Limiting sleeve; 8. Traction rope; 9. Adjustment component; 91. Hand-operated knob; 92. Threaded rod; 93. Threaded socket block; 94. Connecting rod; 10. Guide seat; 11. Pressure application component; 111. Sliding sleeve; 112. Fixed base; 113. Pull rod; 114. Handle; 12. Fixed pulley seat; 13. First connecting seat; 14. Second connecting seat; 15. Spring; 16. Guide groove; 17. Slide groove; 18. Limiting bolt. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0015] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example: Figures 1 to 3As shown, the present invention proposes a labor-saving pruning shears comprising: a fixed rod 1, wherein the upper outer wall of the fixed rod 1 is provided with a threaded portion, and a threaded sleeve 2 is threadedly connected to one end of the fixed rod 1 through the threaded portion, which facilitates the assembly and disassembly of the threaded sleeve 2. A first cutting blade 3 is fixedly provided at one end of the threaded sleeve 2. The first cutting blade 3 is provided with an arc-shaped structure, which facilitates the hooking of the first cutting blade 3 with the plant to be pruned, thereby improving the convenience of pruning.

[0020] Furthermore, a second cutting blade 4 is rotatably mounted on the first cutting blade 3 via a pivot, and the first cutting blade 3 and the second cutting blade 4 are rotatably coupled to facilitate cutting the plant. A guide groove 16 is provided on the second cutting blade 4, and a handle 5 is provided at one end of the second cutting blade 4. A pulley seat 6 is rotatably mounted at one end of the handle 5 via a pivot, and a limit sleeve 7 is rotatably mounted at one end of the pulley seat 6 via a pivot. A traction rope 8 is fixedly mounted at one end of the limit sleeve 7, which can drive the limit sleeve 7 to move, thereby adjusting the opening and closing degree between the first cutting blade 3 and the second cutting blade 4.

[0021] Secondly, a guide seat 10 is fixedly installed on the outer wall of the fixed rod 1, and a fixed pulley seat 12 is fixedly installed on the outer wall of the threaded sleeve 2. A groove 17 is opened on one side of the guide seat 10. The traction rope 8 is connected to the pressure application component 11 through the fixed pulley seat 12 and the pulley seat 6 in sequence. The pressure application component 11 can drive the traction rope 8 to adjust the opening degree of the first cutting blade 3 and the second cutting blade 4.

[0022] like Figure 3 and Figure 4 As shown, the second cutting blade 4 is provided with an adjustment component 9 for adjusting the position of the handle 5. The adjustment component 9 includes a push knob 91 rotatably mounted on the second cutting blade 4, and the outer wall of the push knob 91 is provided with an anti-slip groove to improve the surface friction. One end of the push knob 91 is fixedly provided with a threaded rod 92, and the outer wall of the threaded rod 92 is threadedly fitted with a threaded sleeve block 93, which can adjust the position of the threaded sleeve block 93. The threaded sleeve block 93 is set with an "H" shaped structure and is slidably connected to the guide groove 16. The guide groove 16 can provide guidance for the threaded sleeve block 93, making its movement more stable. One end of the threaded sleeve block 93 is fixedly provided with a connecting rod 94, and one end of the connecting rod 94 is fixedly connected to the handle 5, which can drive the handle 5 to move through the connecting rod 94, thereby adjusting the length of the second cutting blade 4 and making cutting more effortless.

[0023] like Figure 1 and Figure 2As shown, the guide seat 10 is provided with a pressure application component 11 for pulling the traction rope 8. The pressure application component 11 includes a sliding sleeve 111 slidably disposed on the guide seat 10. A limit bolt 18 is threaded through the sliding sleeve 111 and limits the sliding sleeve 111. A fixed seat 112 is fixedly disposed on one side of the sliding sleeve 111. A pull rod 113 is rotatably disposed on the fixed seat 112 via a pin. One end of the pull rod 113 is fixedly connected to the traction rope 8, enabling the pull rod 113 to pull the traction rope 8 to move. A handle 114 is fixedly disposed on the other end of the pull rod 113, and the pull rod 113 and the handle 114 are perpendicular to each other.

[0024] Furthermore, a first connecting seat 13 is fixedly provided on the side wall of the first cutting blade 3, and a second connecting seat 14 is fixedly provided on the side of the second cutting blade 4. A spring 15 is provided between the first connecting seat 13 and the second connecting seat 14, and the spring 15 can reset the second cutting blade 4 through its own elasticity, which facilitates the pruning of plants.

[0025] The working principle of this embodiment is as follows: Holding the fixed rod 1, the first cutting blade 3 is placed against the surface of the branch to be pruned, utilizing the arc-shaped structure to improve the stability of the contact with the branch. Then, the handle 114 is gripped tightly, causing the pull rod 113 to rotate on the fixed base 112. This pull rod 113 moves the traction rope 8, which, guided by the pulley seat 6 and the fixed pulley seat 12, moves the limiting sleeve 7. The limiting sleeve 7 moves the pull handle 5, which, through the connecting rod 94, moves the second cutting blade 4 towards the first cutting blade 3. Simultaneously, the second cutting blade 4, through the second connecting seat 14, extends the spring 15. At this point, the branch is cut by the first cutting blade 3 and the second cutting blade 4.

[0026] After cutting, release the handle 114. The spring 15 pulls the second connecting seat 14 through its own elasticity, causing the second cutting blade 4 to reset and open. The handle 5 pulls the lever 113 back to the initial position through the traction rope 8, making it convenient for the next trimming.

[0027] When dealing with thicker branches or plants with hard wood, first loosen the limiting bolt 18, then manually push the push knob 91 to rotate. The push knob 91 drives the threaded rod 92 to rotate synchronously. Since the threaded sleeve block 93 is in sliding fit with the guide groove 16 and is limited, the rotational motion of the threaded rod 92 is converted into the linear sliding of the threaded sleeve block 93 along the guide groove 16. This, in turn, pushes the handle 5 to move through the connecting rod 94, changing the relative position of the handle 5 and the second cutting blade 4. The handle 5 is adjusted away from the rotation axis of the second cutting blade 4, extending the lever arm length.

[0028] At this time, the sliding sleeve 111 is pushed to move on the guide seat 10. The sliding sleeve 111 drives the pull rod 113 and the handle 114 to move through the fixed seat 112, so that the traction rope 8 is adapted to the length of the adjusted handle 5. After moving to the appropriate position, the limiting bolt 18 is rotated in the opposite direction so that one end of the limiting bolt 18 is tightly attached to the slide groove 17, thus limiting the sliding sleeve 111.

[0029] After adjustment, repeat the above cutting steps to cut thicker branches or plants with hard wood.

[0030] The above specific embodiments are merely optional embodiments of the labor-saving trimming scissors of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A labor-saving trimming shears, characterized in that, include: A fixed rod (1) is provided with a threaded sleeve (2) at one end of the fixed rod (1), and a first cutting blade (3) is fixedly provided at one end of the threaded sleeve (2). A second cutting blade (4) is rotatably mounted on the first cutting blade (3). A handle (5) is provided at one end of the second cutting blade (4). A pulley seat (6) is rotatably mounted at one end of the handle (5). A limit sleeve (7) is rotatably mounted at one end of the pulley seat (6). A traction rope (8) is fixedly mounted at one end of the limit sleeve (7). An adjustment component (9) for adjusting the position of the handle (5) is provided on the second cutting blade (4). A guide seat (10) is located on the outer wall of the fixed rod (1), and a pressure assembly (11) for pulling the traction rope (8) is provided on the guide seat (10). A fixed pulley seat (12) is fixedly installed on the outer wall of the threaded sleeve (2), and the traction rope (8) is connected to the pressure application component (11) in sequence through the fixed pulley seat (12) and the pulley seat (6).

2. The labor-saving trimming shears according to claim 1, characterized in that, The adjustment component (9) includes a push knob (91) rotatably mounted on the second cutting blade (4). One end of the push knob (91) is fixedly provided with a threaded rod (92). The outer wall of the threaded rod (92) is threadedly fitted with a threaded sleeve block (93). One end of the threaded sleeve block (93) is fixedly provided with a connecting rod (94). One end of the connecting rod (94) is fixedly connected to the handle (5).

3. The labor-saving trimming shears according to claim 1, characterized in that, The pressure application component (11) includes a sliding sleeve (111) slidably disposed on the guide seat (10), a fixed seat (112) fixedly disposed on one side of the sliding sleeve (111), a pull rod (113) rotatably disposed on the fixed seat (112), one end of the pull rod (113) being fixedly connected to the traction rope (8), and a handle (114) fixedly disposed on the other end of the pull rod (113).

4. The labor-saving trimming shears according to claim 1, characterized in that, A first connecting seat (13) is fixedly provided on the side wall of the first cutting blade (3), and a second connecting seat (14) is fixedly provided on the side of the second cutting blade (4). A spring (15) is provided between the first connecting seat (13) and the second connecting seat (14).

5. The labor-saving trimming shears according to claim 1, characterized in that, The first cutting blade (3) is set with an arc-shaped structure.

6. The labor-saving trimming shears according to claim 2, characterized in that, The second cutting blade (4) is provided with a guide groove (16), and the threaded sleeve block (93) is configured with an "H" shaped structure. The threaded sleeve block (93) is slidably connected to the guide groove (16).

7. The labor-saving trimming shears according to claim 3, characterized in that, A groove (17) is provided on one side of the guide seat (10), and a limit bolt (18) is threaded through the sliding sleeve (111).

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