Scissors for pruning shrubs

Abstract

The utility model relates to the technical field of shrub pruning, in particular to shrub pruning scissors which comprise a first shearing arm rod, a second shearing arm rod is attached to the lower end face of the first shearing arm rod, and a connecting pin shaft is rotatably arranged at the connecting position of the second shearing arm rod and the first shearing arm rod in a penetrating mode. Shearing blades are fixedly mounted on the opposite surfaces of the first tool apron and the second tool apron; cleaning assemblies are arranged inside and outside the second tool apron and the first tool apron, each cleaning assembly comprises a cleaning assembly plate slidably mounted inside the second tool apron and the first tool apron, and a cleaning scraper is fixedly mounted at the top end, close to the end face of the shearing blade, of each cleaning assembly plate. According to the utility model, the cleaning assembly plate extends out, so that the cleaning scraper blade can scrape and clean the end face of the shearing blade, and the problems that various plant tissues are attached to the blade in the shearing process to form dirt, resin or other residues, the blade is gradually abraded, and the sharpness of the blade is reduced can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to shrub pruning technical field especially is shrub pruning is used scissors. BACKGROUND

[0002] Shrub pruning is an important link in gardening work, and the pruning time, method and frequency need to be determined according to different shrub species, growth habits and ornamental needs. Through scientific and reasonable pruning, the healthy growth and aesthetic appearance of shrubs can be maintained.

[0003] Shrub pruning is an indispensable part of gardening work, and scissors, as one of the main tools for pruning, play an important role in shrub pruning. The structure of scissors mainly consists of a blade, a handle and a connecting piece. The blade is the core part of the scissors and is used for cutting branches directly. The blade is usually made of sharp metal, such as stainless steel, carbon steel or titanium alloy. The handle is the handheld part of the scissors, usually made of plastic, rubber or wood. The connecting piece is the key component that connects the blade and the handle, allowing the scissors to open and close smoothly during use.

[0004] In the prior art, the shrub pruning scissors will come into contact with various plant tissues during pruning, including leaves, branches, bark, etc. These substances may adhere to the blade, forming dirt, resin or other residues. If not cleaned in time, these residues may cause corrosion to the blade, affecting its sharpness and service life. Therefore, after using the shrub pruning scissors, the user needs to clean the blade immediately. However, the user needs to perform post-maintenance of the scissors after high-intensity pruning, which increases the labor intensity of the user. SUMMARY

[0005] The utility model aims at providing a shrub pruning scissors, through the extension of the cleaning assembly plate, the cleaning scraper can clean the end face of the cutting blade. This can avoid the adhesion of various plant tissues to the blade during pruning, forming dirt, resin or other residues, which will gradually wear out the blade and cause the sharpness to decrease. Thus, the problem in the above background technology is solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a shrub pruning scissors, comprising a first cutting arm rod, a second cutting arm rod is attached to the lower end face of the first cutting arm rod, a connecting pin shaft is rotatably arranged at the connection between the second cutting arm rod and the first cutting arm rod, a second blade holder is fixedly installed at the front end of the second cutting arm rod, a first blade holder is fixedly installed at the front end of the first cutting arm rod, and a cutting blade is fixedly installed on the opposite surface of the first blade holder and the second blade holder.

[0007] The second cutter holder and the first cutter holder are provided with cleaning components on their inner and outer sides. The cleaning components include a cleaning assembly plate that is slidably installed inside the second cutter holder and the first cutter holder. A cleaning scraper is fixedly installed on the top of the cleaning assembly plate near the end face of the shearing blade.

[0008] Preferably, the length of the first shearing arm at the rear end of the connecting pin is greater than the sum of the length of the first shearing arm at the front end of the connecting pin and the length of the first tool holder, and the length of the second shearing arm at the rear end of the connecting pin is greater than the sum of the length of the second shearing arm at the front end of the connecting pin and the length of the first tool holder.

[0009] Preferably, both the first shear arm and the second shear arm are fixedly fitted with rubber sleeves on the rear end of the connecting pin.

[0010] Preferably, the cleaning assembly further includes a telescopic assembly cavity formed inside the second tool holder and the first tool holder, wherein a spring is fixedly installed inside the telescopic assembly cavity, and the number of springs is arranged at equal intervals.

[0011] Preferably, both the second tool holder and the first tool holder are provided with lubrication components on their inner and outer sides, and the lubrication components include oil grooves formed inside the second tool holder and the first tool holder.

[0012] Preferably, the lubrication assembly further includes a one-way oil injection hole passing through the interior of the second tool holder and the first tool holder, the end of the one-way oil injection hole extending into the interior of the oil groove and communicating with the oil groove.

[0013] Preferably, a sponge oil pad is embedded inside the oil tank, and an oil brush is fixedly installed on the cleaning assembly plate at the middle position of the end face of the cleaning scraper.

[0014] Preferably, a tension spring is fixedly installed on the front end face of the second shear arm on the connecting pin, and a locking pin corresponding to the tension spring is fixedly installed on the front end face of the first shear arm on the connecting pin.

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

[0016] 1. This utility model, through the extension of the cleaning assembly plate, enables the cleaning scraper to scrape and clean the end face of the shearing blade. This avoids the problem of various plant tissues adhering to the blade during the trimming process, forming dirt, resin or other residues, which would gradually wear down the blade and reduce its sharpness. The cleaning component can effectively remove these impurities, thereby maintaining the sharpness of the shearing blade and ensuring trimming efficiency and quality.

[0017] 2. During the pruning process, the lubricating oil brushed onto the shearing blade flows to different parts of the blade as it rotates up and down and left and right, ensuring effective lubrication. This allows the lubricating oil to form a protective film on the blade surface, reducing direct contact between the blade and the branch, thus lowering the coefficient of friction. This not only protects the shearing blade from excessive wear but also extends its service life. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the tool holder of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection between the first and second tool holders of this utility model;

[0022] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. First shearing arm; 2. Second shearing arm; 3. Connecting pin; 4. Rubber sleeve; 5. Second cutter holder; 6. First cutter holder; 7. Shearing blade; 8. Cleaning assembly; 801. Cleaning assembly plate; 802. Cleaning scraper; 803. Spring; 804. Telescopic assembly cavity; 9. Lubrication assembly; 901. One-way oil injection hole; 902. Oil groove; 903. Oil brush; 904. Sponge oil pad; 10. Tension spring; 11. Locking pin. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A shrub-pruning shears includes a first shearing arm 1, a second shearing arm 2 attached to the lower end of the first shearing arm 1, a connecting pin 3 rotatably passing through the connection between the second shearing arm 2 and the first shearing arm 1, a second blade holder 5 fixedly mounted at the front end of the second shearing arm 2, a first blade holder 6 fixedly mounted at the front end of the first shearing arm 1, and shearing blades 7 fixedly mounted on opposite surfaces of the first blade holder 6 and the second blade holder 5. The shearing blades 7 have a triangular structure, which allows for a sawing effect. The length of the first shearing arm 1 at the rear end of the connecting pin 3 is greater than the sum of the length of the first shearing arm 1 at the front end of the connecting pin 3 and the length of the first blade holder 6. The length of the second shearing arm 2 at the rear end of the connecting pin 3 is also greater than the sum of the length of the second shearing arm 2 at the front end of the connecting pin 3 and the length of the first blade holder 6. Rubber sleeves 4 are fixedly mounted on the rear ends of both the first shearing arm 1 and the second shearing arm 2 at the connecting pin 3.

[0028] The second cutter holder 5 and the first cutter holder 6 are both equipped with cleaning components 8 on their inner and outer sides. The cleaning components 8 include a cleaning assembly plate 801 that is slidably installed inside the second cutter holder 5 and the first cutter holder 6. A cleaning scraper 802 is fixedly installed on the top of the cleaning assembly plate 801 near the end face of the shearing blade 7. The cleaning components 8 also include a telescopic assembly cavity 804 opened inside the second cutter holder 5 and the first cutter holder 6. A spring 803 is fixedly installed inside the telescopic assembly cavity 804. The number of springs 803 is arranged at equal intervals.

[0029] By adopting the above technical solution, the user can hold the rubber sleeve 4 during use. The rubber sleeve 4 improves the comfort of using the scissors. The user rotates the first blade holder 6 and the second blade holder 5 to open them, places the shrub branch to be pruned between the first blade holder 6 and the second blade holder 5, and rotates the second cutting arm 2 and the first cutting arm 1 inside the rubber sleeve 4 inward. This causes the second blade holder 5 and the first blade holder 6 to rotate via the connecting pin 3. This allows the cutting blades 7 on the second blade holder 5 and the first blade holder 6 to perform the cutting. The gap formed between the triangles of adjacent cutting blades 7 provides a certain limiting effect on the shrub branch to be pruned. The clamping between the cutting blades 7 achieves the cutting effect on the shrub branch between the cutting blades 7. The cutting arm is relatively long at the rear end of the connecting pin 3, which saves effort. When the shrub branch to be pruned is located in the triangle of adjacent cutting blades 7... When the shrub branch is cut through the gap, the force generated during shearing acts on it, compressing the branch. This compression pushes the cleaning assembly plate 801, causing it to compress the spring 803 and retract into the telescopic assembly cavity 804. After the branch is cut, the cleaning assembly plate 801, no longer compressed, extends out of the telescopic assembly cavity 804 under the elastic return of the spring 803. This extension allows the cleaning scraper 802 to clean the end face of the shearing blade 7, preventing various plant tissues from adhering to the blade during pruning, forming dirt, resin, or other residues that gradually wear down the blade and reduce its sharpness. The cleaning assembly 8 effectively removes these impurities, maintaining the sharpness of the shearing blade 7 and ensuring pruning efficiency and quality. Continuous wear of the shearing blade 7 not only reduces its performance but also shortens the overall lifespan of the shears. Timely cleaning reduces the corrosive effect of impurities on the blades, helping to extend the lifespan of the shears and lower replacement costs. After being scraped and cleaned, the shear blades cut into branches more smoothly during pruning, reducing the additional resistance caused by accumulated impurities and making the pruning process easier and more efficient. Furthermore, shrubs may harbor pathogens or parasites; if the shears are not cleaned promptly, these harmful organisms can spread between different shrubs through the shears.

[0030] Specifically, such as Figures 2 to 4As shown, both the second cutter holder 5 and the first cutter holder 6 are equipped with lubrication components 9 on their inner and outer surfaces. Each lubrication component 9 includes an oil groove 902 formed inside the second cutter holder 5 and the first cutter holder 6. The lubrication component 9 also includes a one-way oil injection hole 901 passing through the second cutter holder 5 and the first cutter holder 6, with the end of the one-way oil injection hole 901 extending into the oil groove 902 and communicating with it. A sponge oil pad 904 is embedded inside the oil groove 902. An oil brush 903 is fixedly installed on the cleaning assembly plate 801 at the middle position of the end face of the cleaning scraper 802. A tension spring 10 is fixedly installed on the front end face of the second shearing arm 2 on the connecting pin 3, and a locking pin 11 corresponding to the tension spring 10 is fixedly installed on the front end face of the first shearing arm 1 on the connecting pin 3.

[0031] By adopting the above technical solution, when using scissors, lubricating oil needs to be periodically injected into the oil groove 902 through the one-way oil injection hole 901. When the lubricating oil enters the oil groove 902, it can be absorbed by the sponge oil pad 904 in the oil groove 902. When the pruned shrub branches are squeezed, they will push the cleaning assembly plate 801, causing the cleaning assembly plate 801 to retract into the telescopic assembly cavity 804. At this time, the oil brush 903 mounted on the cleaning assembly plate 801 will be received into the telescopic assembly cavity 804 together with the cleaning assembly plate 801. This allows the retracted oil brush 903 to make close and squeezed contact with the sponge oil pad 904, thereby allowing the lubricating oil in the sponge oil pad 904 to stick to the oil brush 903. When the shrub branches are cut, there is no branch squeezing or pushing. The cleaning assembly plate 801 extends from the telescopic assembly cavity 804 under the elastic return action of the spring 803. At this time, the oil brush 903 extends from the telescopic assembly cavity 804 driven by the cleaning assembly plate 801, thus carrying lubricating oil from the sponge oil pad 904. This allows the oil brush 903 to lubricate and clean the end face of the shearing blade 7, thereby achieving lubrication and maintenance of the shearing blade 7. Simultaneously, during the pruning process, the lubricating oil brushed on the shearing blade 7 flows to different parts of the shearing blade 7 as it flips up and down and left and right, ensuring effective lubrication. This allows the lubricating oil to form a protective film on the surface of the shearing blade 7, reducing direct contact between the shearing blade 7 and the branches, thereby lowering the coefficient of friction. This not only protects the shearing blade 7 from excessive wear but also extends its service life. Furthermore, the lubricating effect of the oil helps the shearing blade 7 maintain its sharpness, because reduced friction means that the resistance encountered by the shearing blade 7 during cutting is correspondingly reduced, decreasing heat and wear generated by friction. Meanwhile, the lubricating oil also has a certain rust-preventing function, forming a rust-preventing film on the surface of the shearing blade 7 to prevent it from rusting due to moisture or exposure to air. This is crucial for maintaining the good condition of the shearing blade 7 and extending its service life. When the scissors need to be stored and not in use, the tension spring 10 on the second shearing arm 2 is locked onto the locking post 11 of the first shearing arm 1, which keeps the shearing blade 7 in a closed state, thereby improving the safety of the scissors during storage. At the same time, the cleaning assembly plate 801 is extended under the action of the spring 803, which allows the cleaning assembly plate 801 to protect the shearing blade 7, thus providing dust protection and shielding.

[0032] Working principle: During use, the user can hold the rubber sleeve 4, which improves the comfort of using the scissors. The user rotates the first blade holder 6 and the second blade holder 5 to open them, places the shrub branch to be pruned between the first blade holder 6 and the second blade holder 5, and rotates the second shearing arm 2 and the first shearing arm 1 inside the rubber sleeve 4 inward, thereby driving the second blade holder 5 and the first blade holder 6 to rotate. This allows the shearing blades 7 on the second blade holder 5 and the first blade holder 6 to cut the shrub branch. During cutting, the shrub branch is compressed and pushes the cleaning assembly plate 801. This movement allows the cleaning assembly plate 801 to compress the spring 803, causing it to retract into the telescopic assembly cavity 804. When the shrub branch is cut, the cleaning assembly plate 801, no longer pushed by the branch, extends out of the telescopic assembly cavity 804 under the elastic restoring action of the spring 803. This extension of the cleaning assembly plate 801 allows the cleaning scraper 802 to scrape and clean the end face of the shearing blade 7. When cutting the branch, the shearing blade 7 on the second blade holder 5 and the first blade holder 6 adheres to their end faces, thus preventing any foreign matter residue. The side of the shearing blade 7 facing away from the blade holder only needs to be cleaned. When using the shears, lubricating oil needs to be injected into the oil groove 902 periodically through the one-way oil injection hole 901. When the lubricating oil enters the oil groove 902, it can be absorbed by the sponge oil pad 904 in the oil groove 902. When the pruned shrub branches are squeezed, they will push the cleaning assembly plate 801, causing the cleaning assembly plate 801 to retract into the telescopic assembly cavity 804. At this time, the oil brush 903 mounted on the cleaning assembly plate 801 will be received into the telescopic assembly cavity 804 along with the cleaning assembly plate 801. This allows the collected oil to be stored in the telescopic assembly cavity 804. The brush 903 and the sponge oil pad 904 are pressed and adhered to each other, allowing the lubricating oil in the sponge oil pad 904 to stick to the brush 903. When the shrub branch is cut, the cleaning assembly plate 801, which is not pushed by the branch, will extend from the telescopic assembly cavity 804 under the elastic reset action of the spring 803. At this time, the brush 903 will extend from the telescopic assembly cavity 804 under the action of the cleaning assembly plate 801, thus bringing the lubricating oil out from the sponge oil pad 904. This allows the brush 903 to lubricate and clean the end face of the shearing blade 7, thereby achieving the lubrication and maintenance treatment of the shearing blade 7.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pair of shrub-pruning shears, comprising a first shearing arm (1), characterized in that: The lower end face of the first shear arm (1) is attached to the second shear arm (2), and the connection between the second shear arm (2) and the first shear arm (1) is rotatably connected by a connecting pin (3). The front end of the second shear arm (2) is fixedly installed with a second blade holder (5), and the front end of the first shear arm (1) is fixedly installed with a first blade holder (6). Shear blades (7) are fixedly installed on the opposite surfaces of the first blade holder (6) and the second blade holder (5). The second cutter holder (5) and the first cutter holder (6) are provided with cleaning components (8) on both the inside and outside. The cleaning components (8) include a cleaning assembly plate (801) that is slidably installed inside the second cutter holder (5) and the first cutter holder (6). A cleaning scraper (802) is fixedly installed on the top of the cleaning assembly plate (801) near the end face of the shearing blade (7).

2. The shrub pruning shears according to claim 1, characterized in that: The length of the first shearing arm (1) at the rear end of the connecting pin (3) is greater than the sum of the length of the first shearing arm (1) at the front end of the connecting pin (3) and the length of the first cutter holder (6). The length of the second shearing arm (2) at the rear end of the connecting pin (3) is greater than the sum of the length of the second shearing arm (2) at the front end of the connecting pin (3) and the length of the first cutter holder (6).

3. The shrub pruning shears according to claim 1, characterized in that: Both the first shear arm (1) and the second shear arm (2) are fixedly fitted with rubber sleeves (4) on the rear end of the connecting pin (3).

4. The shrub pruning shears according to claim 1, characterized in that: The cleaning component (8) also includes a telescopic assembly cavity (804) opened inside the second cutter holder (5) and the first cutter holder (6). A spring (803) is fixedly installed inside the telescopic assembly cavity (804), and multiple springs (803) are arranged at equal intervals.

5. The shrub pruning shears according to claim 1, characterized in that: The second tool holder (5) and the first tool holder (6) are provided with lubrication components (9) on both the inside and outside. The lubrication components (9) include oil grooves (902) opened inside the second tool holder (5) and the first tool holder (6).

6. The shrub pruning shears according to claim 5, characterized in that: The lubrication assembly (9) also includes a one-way oil injection hole (901) passing through the interior of the second tool holder (5) and the first tool holder (6), the end of which extends into the interior of the oil groove (902) and communicates with the oil groove (902).

7. A shrub pruning shears according to claim 6, characterized in that: The oil tank (902) is fitted with a sponge oil pad (904), and the cleaning assembly plate (801) is fixedly installed with an oil brush (903) at the middle position of the end face of the cleaning scraper (802).

8. The shrub pruning shears according to claim 1, characterized in that: The second shear arm (2) is fixedly mounted with a tension spring (10) on the front end face of the connecting pin (3), and the first shear arm (1) is fixedly mounted with a locking pin (11) corresponding to the tension spring (10) on the front end face of the connecting pin (3).

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