Branch pruning device for gardening

Abstract

The utility model discloses a branch pruning device for gardening, which relates to the technical field of gardening and comprises a first handle and scissors, a second handle is rotatably mounted above the first handle, and a return spring is mounted between the second handle and the return spring. A telescopic mechanism is arranged between the first handle and the scissors and used for adjusting the trimming distance, the telescopic mechanism comprises an adjusting unit, the adjusting unit is arranged between the first handle and the scissors and comprises an installation pipe fixedly installed between the first handle and the scissors, and a ladder-shaped groove is formed in the top of an inner cavity of the installation pipe; a ladder-shaped block is mounted in the ladder-shaped groove in a sliding manner; a positioning unit; by arranging the adjusting unit, a user pulls the scissors, the scissors drive the telescopic rod and the rack to move, the rack drives the gear to rotate, and the scissors extend outwards, so that the pruning distance is adjusted, and high-altitude or far branches are conveniently pruned.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gardening, specifically to a tree branch pruning device for gardening. BACKGROUND

[0002] Tree branch, a Chinese word, refers to the branch growing from the trunk or large branch of a tree; it specifically refers to the branch growing from the trunk. The appearance of trees in gardens needs to be kept beautiful, so gardeners need to prune tree branches regularly to create an artistic form for the trees and ensure the viewing effect.

[0003] According to the patent name: a tree branch pruning device for gardening (patent publication number: CN205946658U, patent publication date: 2017-02-15), including bottom plate, push hand, lower bearing seat, screw rod, nut, upper bearing seat, servo motor, fixed plate I, electric winding wheel, pull wire, slide rail I, slide block I, fixed plate II, fixed plate III, electric push rod I, fixed block, slide rail II, electric push rod II, slide block II, support rod, connecting rod I, connecting rod II, blade, electric wheel, collection box, conveyor belt, driven wheel, lifting cylinder, pressing plate and wheel, the bottom plate bottom is equipped with the wheel, the bottom plate top right end is equipped with the push hand. The utility model reaches the effect that the structure is simple, convenient to operate, time-saving and labor-saving.

[0004] However, based on the above prior art, the existing tree branch pruning device for gardening still has the following problems: traditional manual pruning tools often cannot reach high or distant branches, and the use of ladders or other auxiliary tools poses a safety hazard. Therefore, the utility model provides a tree branch pruning device for gardening. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a tree branch pruning device for gardening, which solves the problems of the existing tree branch pruning device for gardening, such as the difficulty of traditional manual pruning tools in reaching high or distant branches, and the safety hazard of using ladders or other auxiliary tools.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a tree branch pruning device for gardening, comprising a first handle and a scissors, a second handle is rotatably installed above the first handle, a return spring is installed between the second handle and the return spring, a telescopic mechanism is arranged between the first handle and the scissors for adjusting the pruning distance, the telescopic mechanism comprises:

[0007] The adjustment unit is located between the first handle and the scissors, including a mounting tube fixedly installed between the first handle and the scissors. The top of the inner cavity of the mounting tube is provided with a trapezoidal groove, and a trapezoidal block is slidably installed inside the trapezoidal groove. A telescopic rod is fixedly installed at the bottom of the trapezoidal block, and the scissors are fixedly installed at one end of the telescopic rod. The movement of the scissors is achieved by moving the telescopic rod, thereby realizing the adjustment of the trimming distance.

[0008] A positioning unit is located on the rear side of the adjustment unit and is used to limit the movement of the telescopic rod;

[0009] The pulling unit is located on the front side of the adjusting unit and is used to drive the scissors to cut.

[0010] Preferably, the adjustment unit further includes a rack fixedly installed at the bottom of the telescopic rod, and a rotating shaft is rotatably installed inside the mounting tube, and a gear is fixedly installed on the surface of the rotating shaft, and the gear meshes with the rack.

[0011] Preferably, the positioning unit includes a fixing plate fixedly installed on the rear side of the mounting tube, a ratchet is rotatably installed on the front side of the fixing plate, and the rear end of the rotating shaft passes through the mounting tube, the fixing plate and the ratchet are fixedly connected.

[0012] Preferably, a fixing seat is fixedly installed on one side of the fixing plate, a pawl is rotatably installed on one side of the fixing plate, a return spring is installed between the return spring and the pawl, and one end of the pawl is engaged with the ratchet.

[0013] Preferably, the pulling unit includes a movable rod movably mounted on the scissors, and the movable rod has a plurality of threaded holes inside.

[0014] Preferably, the pulling unit further includes a connecting rod movably mounted on the second handle, one end of which is threadedly fitted with a threaded knob, which is inserted into a threaded hole to fix the position of the moving rod.

[0015] This invention provides a gardening branch pruning device. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] 1. This gardening branch pruning device is equipped with an adjustment unit. When the user pulls the shears, the shears move the telescopic rod and rack, and the rack drives the gear to rotate, causing the shears to extend outward, thereby adjusting the pruning distance and facilitating the pruning of branches at height or in distant locations.

[0018] 2. This gardening branch pruning device is equipped with a positioning unit. When the gear rotates, it drives the ratchet to rotate through the shaft. The ratchet causes the pawl to separate and engage. When the ratchet and pawl are engaged, the ratchet is prevented from rotating in the opposite direction, thereby preventing the pruning shears from returning to their original position. Attached Figure Description

[0019] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional, three-dimensional structural view of the adjustment unit of this utility model;

[0021] Figure 3 This is a rear-view three-dimensional structural diagram of the adjustment unit of this utility model;

[0022] Figure 4 This is a three-dimensional cross-sectional view of the pull unit of this utility model.

[0023] In the diagram: 1-First handle, 2-Telescopic mechanism, 21-Adjustment unit, 211-Mounting tube, 212-Trapezoidal groove, 213-Trapezoidal block, 214-Telescopic rod, 215-Rack, 216-Rotating shaft, 217-Gear, 22-Positioning unit, 221-Fixing plate, 222-Fixing seat, 223-Pawl, 224-Return spring, 225-Ratchet, 23-Pull unit, 231-Connecting rod, 232-Threaded hole, 233-Moving rod, 234-Threaded knob, 3-Second handle, 4-Reset spring, 5-Scissors. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a technical solution:

[0026] A gardening branch pruning device includes a first handle 1 and scissors 5. A second handle 3 is rotatably mounted above the first handle 1, and a return spring 4 is installed between the second handle 3 and a return spring 4. A telescopic mechanism 2 is provided between the first handle 1 and the scissors 5 for adjusting the pruning distance. The telescopic mechanism 2 includes:

[0027] The adjustment unit 21 is located between the first handle 1 and the scissors 5. It includes an installation tube 211 fixedly installed between the first handle 1 and the scissors 5. The top of the inner cavity of the installation tube 211 is provided with a trapezoidal groove 212. A trapezoidal block 213 is slidably installed inside the trapezoidal groove 212. A telescopic rod 214 is fixedly installed at the bottom of the trapezoidal block 213. The scissors 5 is fixedly installed at one end of the telescopic rod 214. The movement of the scissors 5 is achieved by moving the telescopic rod 214, thereby realizing the adjustment of the trimming distance.

[0028] The positioning unit 22 is located on the rear side of the adjustment unit 21 and is used to limit the movement of the telescopic rod 214;

[0029] Pulling unit 23 is located on the front side of adjustment unit 21 and is used to drive scissors 5 to cut.

[0030] The user squeezes the second handle 3 and the return spring 4, and pulls the scissors 5 through the pulling unit 23 to cut the tree branch.

[0031] In this embodiment, the adjustment unit 21 further includes a rack 215 fixedly installed at the bottom of the telescopic rod 214, and a rotating shaft 216 is rotatably installed inside the mounting tube 211, and a gear 217 is fixedly installed on the surface of the rotating shaft 216, and the gear 217 meshes with the rack 215.

[0032] When the user pulls the scissors 5, the scissors 5 move the telescopic rod 214 and the rack 215. The rack 215 drives the gear 217 to rotate, and the scissors 5 extends outward, thereby adjusting the pruning distance and making it easier to prune branches at height or in the distance.

[0033] In this embodiment, the positioning unit 22 includes a fixing plate 221 fixedly installed on the rear side of the mounting tube 211. A ratchet 225 is rotatably installed on the front side of the fixing plate 221, and the rear end of the rotating shaft 216 passes through the mounting tube 211, the fixing plate 221 and the ratchet 225 are fixedly connected. A fixing seat 222 is fixedly installed on one side of the fixing plate 221, and a pawl 223 is rotatably installed on one side of the fixing plate 221. A return spring 224 is installed between the return spring 224 and the pawl 223, and one end of the pawl 223 is engaged with the ratchet 225.

[0034] When gear 217 rotates, it drives ratchet 225 to rotate via shaft 216. Ratchet 225 drives pawl 223 to separate and engage. When ratchet 225 and pawl 223 are engaged, ratchet 225 is prevented from rotating in the opposite direction, thereby preventing the scissors 5 from returning to their original position.

[0035] In this embodiment, the pulling unit 23 includes a movable rod 233 movably mounted on the scissors 5, and the movable rod 233 has a plurality of threaded holes 232 inside. The pulling unit 23 also includes a connecting rod 231 movably mounted on the second handle 3. One end of the connecting rod 231 is threadedly mounted with a threaded knob 234. The threaded knob 234 is threadedly inserted into the threaded hole 232 to fix the position of the movable rod 233.

[0036] The movable rod 233 slides inside the connecting rod 231, and then the threaded knob 234 is rotated so that one end of the threaded knob 234 enters the interior of the threaded hole 232, thereby fixing the position of the movable rod 233.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] During operation, the user first pulls the scissors 5, which moves the telescopic rod 214 and rack 215. The rack 215 drives the gear 217 to rotate, and the scissors 5 extends outward to adjust the cutting distance. While the gear 217 is rotating, it drives the ratchet 225 to rotate. The ratchet 225 separates from and engages with the pawl 223. When the scissors 5 is reset, the pawl 223 is moved to separate from the ratchet 225, pushing the scissors 5 to reset.

[0039] Then, during the stretching process of the scissors 5, the moving rod 233 slides inside the connecting rod 231. After that, the threaded knob 234 is rotated so that one end of the threaded knob 234 enters the inside of the threaded hole 232, fixing the position of the moving rod 233. The user squeezes the second handle 3 and the return spring 4, and pulls the scissors 5 to engage in a scissor-like action to cut the tree branch through the pulling unit 23.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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 gardening branch pruning device, comprising a first handle (1) and scissors (5), wherein a second handle (3) is rotatably mounted above the first handle (1), and a return spring (4) is installed between the second handle (3) and a return spring (4), characterized in that: A telescopic mechanism (2) is provided between the first handle (1) and the scissors (5) for adjusting the trimming distance. The telescopic mechanism (2) includes: The adjustment unit (21) is located between the first handle (1) and the scissors (5), including an installation tube (211) fixedly installed between the first handle (1) and the scissors (5). The top of the inner cavity of the installation tube (211) is provided with a trapezoidal groove (212), and a trapezoidal block (213) is slidably installed inside the trapezoidal groove (212). A telescopic rod (214) is fixedly installed at the bottom of the trapezoidal block (213), and the scissors (5) is fixedly installed at one end of the telescopic rod (214). The movement of the scissors (5) is achieved by moving the telescopic rod (214), thereby realizing the adjustment of the trimming distance. The positioning unit (22) is located on the rear side of the adjustment unit (21) and is used to limit the movement of the telescopic rod (214); The pulling unit (23) is located on the front side of the adjusting unit (21) and is used to drive the scissors (5) to cut.

2. The gardening branch pruning device according to claim 1, characterized in that: The adjustment unit (21) also includes a rack (215) fixedly installed at the bottom of the telescopic rod (214), and a rotating shaft (216) is rotatably installed inside the mounting tube (211), and a gear (217) is fixedly installed on the surface of the rotating shaft (216), and the gear (217) meshes with the rack (215).

3. A gardening branch pruning device according to claim 1, characterized in that: The positioning unit (22) includes a fixing plate (221) fixedly installed on the rear side of the mounting tube (211). A ratchet (225) is rotatably installed on the front side of the fixing plate (221), and the rear end of the rotating shaft (216) passes through the mounting tube (211), the fixing plate (221) and is fixedly connected to the ratchet (225).

4. A gardening branch pruning device according to claim 3, characterized in that: A fixing seat (222) is fixedly installed on one side of the fixing plate (221), and a pawl (223) is rotatably installed on one side of the fixing plate (221). A return spring (224) is installed between the return spring (224) and the pawl (223), and one end of the pawl (223) is engaged with the ratchet (225).

5. A gardening branch pruning device according to claim 1, characterized in that: The pulling unit (23) includes a movable rod (233) movably mounted on the scissors (5), and the movable rod (233) has a plurality of threaded holes (232) inside.

6. A gardening branch pruning device according to claim 5, characterized in that: The pulling unit (23) also includes a connecting rod (231) movably mounted on the second handle (3). One end of the connecting rod (231) is threadedly mounted with a threaded knob (234). The threaded knob (234) is threadedly inserted into the threaded hole (232) to fix the position of the moving rod (233).

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