A pruning device for landscaping tree breeding

Abstract

The application discloses a pruning device for garden greening tree breeding, and relates to the technical field of tree breeding pruning, which comprises an arm sleeve and a fixing rod, the fixing rod is installed at the front end of the arm sleeve, small and large cutting pieces are rotationally installed at the bottom of the fixing rod, and a first torsional spring is arranged between the small and large cutting pieces, the first torsional spring resets the small and large cutting pieces, a rear handle is installed at the bottom of the front end of the arm sleeve, and a worker presses the surface of the rear handle with the thumb and the web space part as a force point, so that the worker can easily cut off the branches by holding the device with one hand, compared with the existing pruning tool, the force mode is changed, the worker does not need to frequently bend the arm, wrist fatigue is avoided, and the worker can operate with one hand to release the other hand to adjust the angle of the required cut-off branches, so that the growth angle of the branches is prevented from blocking the small and large cutting pieces from extending to cut off.

Description

Technical Field

[0001] This invention belongs to the field of tree breeding and pruning, specifically relating to a pruning device for breeding garden trees. Background Technology

[0002] This tree breeding pruning device is designed specifically for pruning branches and trunks during seedling cultivation. It ensures clean cuts without damaging the cambium layer, is suitable for small seedlings, and combines portability, labor-saving, safety, and standardized breeding.

[0003] Patent publication number CN212993186U relates to a multifunctional pruning shears for garden tree maintenance, specifically in the field of garden technology. The shears include a shear body with a first blade on one side and a second blade detachably mounted on its surface. A rubber sleeve is movably fitted onto the surface of the shear body, and a bolt is detachably mounted on the bottom end of the rubber sleeve. A handle is fixedly connected to the bottom end of the shear body, and a telescopic device is movably fitted onto the surface of the handle. A handle sleeve is fixedly mounted on one side of the telescopic device, and a reinforcing ring is detachably mounted on the other side of the handle. A connecting block is fixedly connected to one side of the tip of the second blade. This patent utilizes the interplay between grooves and serrations to reduce the number of branches slipping off the blades, avoiding the need for re-pruning due to slipped branches and increasing the workload, thus enhancing the practicality of the device.

[0004] In the aforementioned patent, the interaction between the groove and the serrations reduces the number of branches slipping off the blade, avoiding the need for re-pruning due to slipping branches and increasing the difficulty of the work. This enhances the practicality of the device. However, when operating it, the operator needs to hold both sides of the blade handle with both hands and exert force simultaneously. The operator also needs to bend their arms while controlling the opening and closing of the pruning shears, which can easily lead to wrist fatigue after long-term use. Furthermore, the growth angle of some branches can prevent the pruning shears from being inserted into and aligned with the branches, making it difficult to bend the branches for adjustment and pruning difficult. After pruning diseased branches, bacteria can easily remain on the surface of the pruning shears, which can easily cause cross-infection between branches if pruning continues. Summary of the Invention

[0005] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. Specifically, the purpose of the present invention is to provide a pruning device for breeding trees in landscaping, in order to solve the problems mentioned in the background art, such as the difficulty of single-handed operation of existing branch pruning blades, the need for both hands to apply force from both ends of the blade to prune branches, the frequent bending of the wrists by the operator, the inconvenience of applying force, and the easy fatigue of the wrists after long-term work.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pruning device for breeding trees in landscaping, comprising an arm sleeve and a fixing rod, wherein the fixing rod is installed at the front end of the arm sleeve, and a small cutting blade and a large cutting blade are rotatably installed at the bottom of the fixing rod, and a first torsion spring is provided between the two, the first torsion spring causing the small cutting blade and the large cutting blade to return to their original positions, a rear handle is installed at the bottom of the front end of the arm sleeve, and the operator presses the thumb and the web of the hand against the surface of the rear handle as a fulcrum for exerting force, a push rod is slidably installed on the front side of the arm sleeve near the small cutting blade and the large cutting blade, a first spring is provided between the push rod and the arm sleeve, the first spring causing the push rod to return to its original positions, folding rods are installed on both sides of the front end of the arm sleeve, and a pry bar is sleeved on the surface of the folding rods on both sides, the pry bar flips and pushes the push rod to slide, squeezing the small cutting blade and the large cutting blade to rotate, thus cutting the branches, the top of the pry bar contacts the inner wall of the push rod, and a front handle is sleeved on the bottom of the pry bar on both sides, the front handle rotates and drives the pry bar to rotate.

[0007] In some embodiments, a pressure rod is slidably mounted on the bottom of the inner wall of the push rod, and a protrusion is mounted on the bottom of the pressure rod. After the rocker arm rotates to a certain angle, it contacts the protrusion and pushes the protrusion downward, causing the pressure rod to move downward. A locking block is slidably mounted on the outer wall of the pressure rod. The downward movement of the pressure rod causes the locking block to move downward. The bottom of the locking block is provided with an arc surface. A push spring is provided between the locking block and the pressure rod. The elastic force of the push spring pushes the locking block out. A vertical rod is mounted on the bottom of the push rod, and an upper conical block is mounted on the top of the vertical rod. The locking block moves downward... During the process, the upper cone block is pressed against the conical surface and slides outward laterally. The lower cone block is slidably installed on the outer wall of the vertical rod. A limit rod is rotatably installed on the inner wall of the push rod near the pressure rod. The top of the limit rod is sleeved on the top of the pressure rod. After the pressure rod moves downward, it presses the limit rod to rotate. After the limit rod rotates, it limits the rocker arm to prevent the rocker arm from resetting. The rocker arm cannot reset under the limit of the limit rod, thus locking the push rod and keeping the small slice and the large slice in a closed state. A second spring is provided between the pressure rod and the push rod. The elastic force of the second spring causes the pressure rod to reset.

[0008] In some embodiments, a rotating plate is rotatably mounted on the top of the large slice, and a second torsion spring is provided between the rotating plate and the large slice. The elastic force of the second torsion spring causes the rotating plate to return to its original position. Several sliders are slidably mounted on the top of the small slice. The rotating plate and the curved surfaces of the sliders continuously contact and rub against each other, applying frictional force. A stop block is installed on the top of the large slice near the rotating plate. The stop block limits one side of the rotating plate, so that the rotating plate can only rotate in one direction. The sides of the rotating plate and the sliders that are close to each other are both set as curved surfaces. A support spring is provided between the slider and the small slice. The elastic force of the support spring on the slider causes frictional force to be generated when the curved surfaces of the slider and the rotating plate contact.

[0009] In some embodiments, a fixing frame is installed at the bottom left side of the arm sleeve, a rotating rod is rotatably installed inside the fixing frame, a strap is connected to the outer wall of the rotating rod, a clip is slidably installed at the bottom right side of the arm sleeve, a return spring is provided between the clip and the arm sleeve, and several rubber blocks are installed on the surface of the strap. The strap is fixed by the clip limiting the rubber blocks by passing the rubber blocks through the clip from one side of the strap.

[0010] In some embodiments, a long rod slides through the left side of the arm sleeve, with the front end of the long rod sleeved on the inner wall of the left-side rocker arm. The rotation of the front grip pushes the long rod to slide, and the long rod passes through a rotating rod. A spiral groove is formed on the outer wall of the long rod near the rotating rod. When the long rod slides, it drives the spiral groove to move. An arc head is installed on the inner wall of the rotating rod. The arc head fits against the inner wall of the spiral groove. The inner wall of the spiral groove pushes the arc head to rotate, which drives the rotating rod to rotate. After the rotating rod rotates, it retracts the strap. An elastic element is provided between the long rod and the arm sleeve. The elastic force of the elastic element causes the rotating rod to return to its original position.

[0011] In some embodiments, a straight groove is formed on the outer wall of the long rod near the spiral groove. Each time the arc head rotates to the end of the spiral groove, it slides into the straight groove. The straight groove is connected to the spiral groove, so even if the long rod continues to move, it will not continue to push the rotating rod to rotate.

[0012] In some embodiments, a medicine tank is provided at the top of the arm sleeve, which stores disinfectant. A cavity is formed inside the top side of the arm sleeve, and an opening is formed at the top of the arm sleeve. The cavity and the medicine tank are connected through the opening. A pressure plate is slidably installed on the inner wall of the cavity. The pressure plate is fixedly connected to a long rod. Each time the long rod moves, it drives the pressure plate to move, releasing the pressure plate from blocking the opening. The disinfectant in the medicine tank flows into the cavity through the opening. Connecting pipes are installed on both sides of the inner wall of the top side of the arm sleeve. The connecting pipes are connected to the cavity. A check valve is provided between the cavity and the connecting pipes. The squeezed disinfectant flows into the connecting pipes through the check valve. The front ends of the connecting pipes pass through the fixed rods and are close to the small and large slices respectively. Atomizing nozzles are installed on the close side respectively. The disinfectant flows to the atomizing nozzles and is sprayed out to disinfect the surface of the cut small and large slices.

[0013] In some embodiments, an arc strip is installed on the front side of the rocker arm. When the rocker arm rotates, it drives the arc strip to rotate. The top of the arc strip is set as an arc surface and contacts the front end of the connecting pipe. After the arc strip rotates, the arc surface of the arc strip squeezes the connecting pipe and pushes the connecting pipe to deflect.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention allows for easy cutting of branches by holding the device with one hand. Compared to existing pruning tools, it changes the way force is applied, eliminating the need for frequent arm bending and preventing wrist fatigue. Furthermore, single-handed operation frees up the other hand to adjust the angle at which the branch is to be cut, preventing the branch's growth angle from obstructing the insertion of small and large cutting blades for cutting. Additionally, the arm sleeve protects the arm and prevents shards from flying and injuring the arm during pruning. When encountering bark that is difficult to cut in one go, the small and large cutting blades can be fixed in place, facilitating dragging and tearing the bark. Furthermore, the closing of the small and large cutting blades during dragging does not require continuous force, making dragging more effortless.

[0015] 2. This invention applies frictional force by continuously contacting and rubbing the curved surface of the rotating plate and the slider, causing the surfaces of the small and large slices to vibrate during the resetting process. This vibration causes any adhering epidermis to fall off. The small and large slices only vibrate during resetting, and do not vibrate during the cutting process, ensuring smooth rotation of the small and large slices during the cutting process and ensuring a flat cut.

[0016] 3. This invention uses rubber blocks that pass through a clamp from one side of the strap to fix the strap. The clamp limits the rubber blocks to secure the strap. The number of rubber blocks passing through the clamp can be selected according to the different arm sizes of the workers, thereby adjusting the fixed position of the strap on the clamp surface. This allows workers of different body types to wear the equipment, improving its applicability. Moreover, when cutting branches, the worker applies force to the front handle to automatically rewind one side of the strap, tightening it and improving the strap's stability during cutting, ensuring the equipment remains stable and does not shake.

[0017] 4. The invention features a maximum winding mechanism for the straps, preventing excessive tightening that could injure workers. It also prevents the reaction force from being transmitted to the front handle surface, thus increasing the rotational resistance of the front handle. After one cut, the wound straps are automatically released, which not only secures the equipment from falling off but also prevents it from being too tight, ensuring worker comfort and allowing them to relax their arms when cutting is not required.

[0018] 5. This invention utilizes the movement of a long rod to reset a pressure plate, squeezing the disinfectant in the cavity and causing it to spray out through a connecting pipe. This disinfectant sprays the surfaces of the small and large slices after cutting, preventing cross-infection that can occur when the equipment continuously cuts damaged or diseased branches and then cuts healthy branches. Furthermore, the rotation of the lever causes the arc strip to rotate, and the arc surface of the arc strip squeezes the connecting pipe, pushing it to deflect and changing its angle. This increases the spraying angle of the connecting pipe, resulting in better disinfectant spraying. The disinfectant in the tank only flows into the cavity in a measured amount during the cutting process, ensuring that both small and large slices are disinfected after each cutting operation, and also avoiding waste of disinfectant. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure provided for an embodiment of this application; Figure 3 This is a schematic diagram of the rocker arm position structure provided in an embodiment of this application; Figure 4 This is a schematic diagram of the slider and rotating plate position structure provided in an embodiment of this application; Figure 5 Provided for the embodiments of this application Figure 4 Enlarged view of section B; Figure 6 This is a schematic diagram of the internal structure of the push rod provided in an embodiment of this application; Figure 7 This is a schematic diagram of the compression bar structure provided in an embodiment of this application; Figure 8 This is a schematic diagram of the strap structure provided in an embodiment of this application; Figure 9 This is a schematic diagram of the rotating rod and long rod structure provided in the embodiments of this application; Figure 10 This is a schematic diagram of the arc head position structure provided in an embodiment of this application; Figure 11 This is a schematic diagram of the cavity structure provided in an embodiment of this application; Figure 12 Provided for the embodiments of this application Figure 2 Enlarged view of section A in the middle.

[0021] Figure label: 1. Arm sleeve; 2. Fixing rod; 3. Rear grip; 4. Small slice; 41. Large slice; 5. Front grip; 6. Push rod; 7. Tilt rod; 81. Folding rod; 82. Rotating plate; 83. Stop block; 84. Slider; 85. Pressure rod; 86. Limiting rod; 87. Vertical rod; 88. Clamping block; 89. Upper cone block; 810. Protrusion; 811. Lower cone block; 91. Fixing frame; 92. Rotating rod; 93. Strap; 94. Clamp; 95. Rubber block; 96. Long rod; 97. Spiral groove; 98. Straight groove; 99. Arc head; 101. Medicine container; 102. Cavity; 103. Pressure plate; 104. Connecting pipe; 105. Check valve; 106. Atomizing nozzle; 107. Arc strip. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 12 This application will be described in further detail.

[0023] This application discloses a pruning device for breeding trees in landscaping.

[0024] refer to Figure 1 - Figure 12 The arm sleeve includes an arm sleeve 1 and a fixing rod 2. The fixing rod 2 is installed at the front end of the arm sleeve 1. A small slice 4 and a large slice 41 are rotatably mounted on the bottom of the fixing rod 2, and a first torsion spring is provided between them. The first torsion spring returns the small slice 4 and the large slice 41 to their original positions. A rear grip 3 is installed at the bottom front end of the arm sleeve 1. The operator presses the thumb and the web of the hand against the surface of the rear grip 3 as a fulcrum. A push rod 6 is slidably installed on the front side of the arm sleeve 1 near the small slice 4 and the large slice 41. A first spring is provided between the push rod 6 and the arm sleeve 1. The first spring returns the push rod 6 to its original position. The arm sleeve 1 has folding rods 81 installed on both sides of the front end. The surface of the folding rods 81 on both sides is fitted with pry bars 7. The pry bars 7 flip and push the push rod 6 to slide, squeezing the small slices 4 and the large slices 41 to rotate and cut the branches. The top of the pry bar 7 contacts the inner wall of the push rod 6. The bottom of the pry bars 7 on both sides is fitted with a front handle 5. The bottom left side of the arm sleeve 1 is fitted with a fixing frame 91. The inner side of the fixing frame 91 is rotatably fitted with a rotating rod 92. The outer wall of the rotating rod 92 is connected with a strap 93. The bottom right side of the arm sleeve 1 is slidably fitted with a clip 94. When the front handle 5 rotates, it drives the pry bar 7 to rotate.

[0025] A pressure rod 85 is slidably mounted on the bottom inner wall of push rod 6. A protrusion 810 is mounted on the bottom of pressure rod 85. After the rocker arm 7 rotates to a certain angle, it contacts the protrusion 810 and pushes the protrusion 810 downward, causing the pressure rod 85 to move downward. A locking block 88 is slidably mounted on the outer wall of pressure rod 85. The downward movement of pressure rod 85 causes the locking block 88 to move downward. The bottom of locking block 88 is provided with an arc surface. A push spring is provided between locking block 88 and pressure rod 85. The elastic force of the push spring pushes locking block 88 out. A vertical rod 87 is mounted on the bottom of push rod 6. An upper conical block 89 is mounted on the top of vertical rod 87. During the downward movement of locking block 88, it slides outward laterally under the pressure of the conical surface of upper conical block 89. A lower cone block 811 is slidably installed on the outer wall of the vertical rod 87. A limit rod 86 is rotatably installed on the inner wall of the push rod 6 near the pressure rod 85. The top of the limit rod 86 is sleeved on the top of the pressure rod 85. After the pressure rod 85 moves downward, it squeezes the limit rod 86 to rotate. After the limit rod 86 rotates, it limits the rocker arm 7 to prevent the rocker arm 7 from resetting. The rocker arm 7 cannot reset under the limit of the limit rod 86, and it jams the push rod 6, keeping the small slice 4 and the large slice 41 in a closed state. After the worker grips all his fingers at the same time, the handle 3 can exert more force to drag the thick bark of the tree branch, which is more labor-saving. A second spring is set between the pressure rod 85 and the push rod 6. The elasticity of the second spring makes the pressure rod 85 reset.

[0026] A rotating plate 82 is rotatably mounted on the top of the large slice 41. A second torsion spring is provided between the rotating plate 82 and the large slice 41. The elastic force of the second torsion spring causes the rotating plate 82 to return to its original position. Several sliders 84 are slidably mounted on the top of the small slice 4. The rotating plate 82 and the surface of the sliders 84 continuously contact and rub against each other, applying frictional force. A stop block 83 is installed on the top of the large slice 41 near the rotating plate 82. The stop block 83 limits the rotating plate 82 on one side, so that the rotating plate 82 can only rotate in one direction. The sides of the rotating plate 82 and the sliders 84 that are close to each other are both made of arc surface. A support spring is provided between the sliders 84 and the small slice 4. The elastic force of the support spring on the sliders 84 causes frictional force when the arc surfaces of the sliders 84 and the rotating plate 82 contact. Whenever the rotating plate 82 passes the sliders 84, the surfaces of the small slice 4 and the large slice 41 vibrate during the resetting process. The vibration causes any skin that may be stuck to the surface to fall off.

[0027] In this embodiment, existing garden pruning tools are difficult to operate with one hand. Both hands are required to apply force from both ends of the tool to cut the branches. When using them, the operator needs to frequently bend their wrists, which is not convenient for applying force and can easily cause wrist fatigue after long-term work.

[0028] Before pruning branches, the equipment must be put on. The arm sleeve 1 is placed on the top of the worker's forearm, and the front end of the strap 93 is passed through the clip 94. The elasticity of the clip 94 secures the strap 93. Once the equipment is on, the worker presses their thumb and the base of their thumb against the surface of the handle 3 as a fulcrum, with the remaining fingers resting on the surface of the front handle 5. By bending the remaining fingers, the worker squeezes and rotates the front handle 5 to prune the branches. As the front handle 5 rotates, it causes the lever 7 to rotate. After the lever 7 rotates, its top flips, pushing the push rod 6 to slide. The sliding push rod 6 then squeezes the outer sides of the small and large slices 41 to close them. The shearing force generated by the closing of the small blade 4 and the large blade 41 cuts the branches. With this configuration, the arm sleeve 1 mounts the device on the forearm of the operator, allowing for easy cutting of branches with a single hand grip. Compared to existing pruning tools, this change in force application eliminates the need for frequent arm bending, avoiding wrist fatigue. Furthermore, the operator's single-handed operation frees up the other hand to adjust the angle at which the branch needs to be cut, preventing the branch's growth angle from obstructing the small blade 4 and the large blade 41 from reaching in for cutting. At the same time, the arm sleeve 1 protects the arm and prevents flying branches from injuring the arm during pruning.

[0029] During pruning, some branches have thick, hard bark. Even if the inner branches have been shortened, the outer bark remains connected, making it difficult to break even with repeated cutting. It is necessary to keep the small slice 4 and large slice 41 closed to continuously apply shearing force to the cut surface, combined with continuous dragging to break the thick bark. After the pry bar 7 rotates to a certain angle, it contacts the protrusion 810 and pushes the protrusion 810 downwards, causing the pressure bar 85 to move downwards. After the pressure bar 85 moves downwards, it squeezes the limiting rod 86 to rotate. Simultaneously, the downward movement of the pressure bar 85 causes the locking block 88 to move downwards. During the downward movement of the locking block 88... Under the pressure of the conical surface of the upper cone block 89, it slides outward laterally until the locking block 88 moves downward into the gap between the upper cone block 89 and the lower cone block 811. Under the elastic force of the push spring, it springs into the gap. At this time, the upper cone block 89 resets the locking block 88 limiting and blocking rod 85 from the top of the locking block 88, fixing the downward-moving rod 85. By fixing the rod 85, the top of the rod 85 continues to press the limiting rod 86, keeping the limiting rod 86 in the open state. This limits the rocker arm 7, which has a tendency to reset. When the operator releases the force-applying finger on the surface of the front grip 5, the rocker arm 7 cannot reset under the limitation of the limiting rod 86. The push rod 6 is engaged, keeping the small slice 4 and the large slice 41 closed. The operator simultaneously grips the handle 3 with all fingers to apply more force and drag the thick bark of the branch. Once the bark is completely broken, the front handle 5 is pulled again, causing the locking block 88 to move downwards. As the locking block 88 moves, its bottom arc surface is pressed against the top edge of the lower cone block 811, causing it to slide out of the gap and continue downwards to the bottom of the lower cone block 811. Simultaneously, the force of the second spring causes the locking block 88 to push the lower cone block 811 upwards, closing it with the upper cone block 89, eliminating the gap. The pressure rod 85, under the force of the second spring... During the upward reset process, the locking block 88 continuously passes through the outer conical surface of the lower cone block 811 and the upper cone block 89 without being limited, allowing the pressure rod 85 to reset smoothly. This drives the limiting rod 86 to rotate and retract, contacting the limit on the rocker arm 7, thereby resetting the rocker arm 7 and the push rod 6. This allows the small slice 4 and the large slice 41 to reopen for the next cut. By fastening the front handle 5 to a certain angle, the small slice 4 and the large slice 41 are fixed, keeping them continuously closed. This facilitates dragging and tearing off difficult-to-cut epidermis. Furthermore, the closure of the small slice 4 and the large slice 41 during the dragging process does not require continuous force, making dragging more effortless.

[0030] During the opening process of small slice 4 and large slice 41, the rotating plate 82 and the surface of the slider 84 continuously contact and rub against each other, applying frictional force. The rotating plate 82 pushes the slider 84 to slowly retract into the top of the small slice 4. Then the rotating plate 82 passes over the slider 84. Whenever the rotating plate 82 passes over the slider 84, the surfaces of the small slice 4 and large slice 41 vibrate during the resetting process. The vibration causes any skin that may be stuck to the surface to fall off. The stop block 83 provides unidirectional limitation for the rotating plate 82, restricting the rotation of the rotating plate 82 only when the large slice 41 is opened. During the shearing stage, when the rotating plate 82 contacts the slider 84, it rotates directly over the slider 84 without squeezing the slider 84 and causing vibration. This ensures that the small slice 4 and large slice 41 rotate smoothly during the shearing process and ensures a flat cut.

[0031] Please see Figure 8 - Figure 10 Based on the above embodiments, in another embodiment of the present invention, a return spring is provided between the clip 94 and the arm sleeve 1, and a plurality of rubber blocks 95 are installed on the surface of the strap 93. The rubber blocks 95 pass through the clip 94 from one side of the strap 93, and the clip 94 limits the rubber blocks 95 to fix the strap 93, thereby improving the applicability of the equipment.

[0032] A long rod 96 slides through the left side of the arm sleeve 1. The front end of the long rod 96 is sleeved on the inner wall of the left-side rocker arm 7. The front handle 5 rotates to push the long rod 96 to slide. The long rod 96 passes through the rotating rod 92. A spiral groove 97 is opened on the outer wall of the long rod 96 near the rotating rod 92. When the long rod 96 slides, it drives the spiral groove 97 to move. An arc head 99 is installed on the inner wall of the rotating rod 92. The arc head 99 fits against the inner wall of the spiral groove 97. The inner wall of the spiral groove 97 pushes the arc head 99 to rotate, which drives the rotating rod 92 to rotate. After the rotating rod 92 rotates, it winds up the strap 93 and tightens the strap 93, which improves the fixation of the strap 93 during shearing and ensures that the equipment is stable and does not shake during shearing. An elastic element is set between the long rod 96 and the arm sleeve 1. The elastic force of the elastic element causes the rotating rod 92 to return to its original position.

[0033] A straight groove 98 is provided on the outer wall of the long rod 96 near the spiral groove 97. Each time the arc head 99 rotates to the end of the spiral groove 97, it will slide into the straight groove 98. The straight groove 98 is connected to the spiral groove 97. Even if the long rod 96 continues to move, it will not continue to push the rotating rod 92 to rotate. The tightening setting of the rotating rod 92 on the strap 93 is maximized to avoid excessive tightening and injury to the staff.

[0034] In this embodiment, during operation, rubber blocks 95 pass through clips 94 from one side of the strap 93. Clips 94 limit the rubber blocks 95 to fix the strap 93. The number of rubber blocks 95 passing through clips 94 is selected according to the different arm sizes of different workers, thereby adjusting the fixed position of the strap 93 on the surface of clips 94, so that workers of different body types can wear the equipment, improving the applicability of the equipment. Each time the front handle 5 is pulled, the front handle 5 rotates, driving the rocker arm 7 to rotate. The rotation of the rocker arm 7 pushes the long rod 96 to slide. When the long rod 96 slides, it drives the spiral groove 97 to move. The inner wall of the spiral groove 97 pushes the arc head 99 to rotate, driving the rotating rod 92 to rotate. After the rotating rod 92 rotates, it winds up the strap 93, tightening the strap, thereby improving the fixation of the strap 93 during cutting, ensuring that the equipment is stable and does not shake during cutting. The strap 93 also tightens the forearm muscles of the worker, making it easier to exert force. When the cutting is finished, after the long rod 96 returns to its original position, the winding part of the strap 93 is released. At this point, the strap 93 not only secures the equipment to prevent it from falling off, but also avoids excessive tightness, ensuring the comfort of the staff and allowing them to relax their arms when cutting is not required. Moreover, each time the arc head 99 rotates to the end of the spiral groove 97, it slides into the straight groove 98. Even if the long rod 96 continues to move, it will not continue to push the rotating rod 92 to rotate. The tightening setting of the strap 93 by the rotating rod 92 is maximized to avoid excessive tightening that could injure the staff. It also prevents the reaction force after the rotating rod 92 rotates several times from being transmitted to the surface of the front grip 5 through the long rod 96, thus avoiding increased rotational resistance of the front grip 5.

[0035] Please see Figure 1 - Figure 12 Based on the above embodiments, in another embodiment of the present invention, a medicine tank 101 is provided at the top of the arm sleeve 1, and the medicine tank 101 stores disinfectant. A cavity 102 is opened inside the top side of the arm sleeve 1, and an opening is opened at the top of the arm sleeve 1. The cavity 102 and the medicine tank 101 are connected through the opening. A pressure plate 103 is slidably installed on the inner wall of the cavity 102. The pressure plate 103 is fixedly connected to the long rod 96. Each time the long rod 96 moves, it drives the pressure plate 103 to move, releasing the pressure plate 103 from blocking the opening. The disinfectant in the medicine tank 101 flows into the cavity 102 through the opening. Connecting pipes 104 are installed on both sides, and connecting pipes 104 are connected to cavity 102. A check valve 105 is installed between cavity 102 and connecting pipe 104. The squeezed disinfectant flows into connecting pipe 104 through check valve 105. The front end of the connecting pipes 104 on both sides passes through fixing rod 2 and is close to small slice 4 and large slice 41 respectively, and atomizing nozzles 106 are installed on each. The disinfectant flows to the atomizing nozzles 106 and is sprayed out to disinfect the surface of the cut small slice 4 and large slice 41, avoiding cross-infection caused by cutting bad and diseased branches and then cutting good branches when the equipment is continuously cutting.

[0036] An arc strip 107 is installed on the front side of the rocker arm 7. When the rocker arm 7 rotates, it drives the arc strip 107 to rotate. The top of the arc strip 107 is set as an arc surface and contacts the front end of the connecting pipe 104. After the arc strip 107 rotates, the arc surface of the arc surface squeezes the connecting pipe 104, pushing the connecting pipe 104 to deflect, changing the angle of the connecting pipe 104, increasing the spraying angle of the connecting pipe 104, and making the spraying effect of the disinfectant better.

[0037] In this embodiment, the medicine tank 101 stores disinfectant. Each time the long rod 96 moves, it drives the pressure plate 103 to move, releasing the pressure plate 103 from blocking the opening. The disinfectant in the medicine tank 101 flows into the cavity 102 through the opening. When the long rod 96 returns to its original position, it pushes the pressure plate 103 to return to its original position. After the pressure plate 103 returns to its original position, it squeezes the disinfectant that has entered the cavity 102. The squeezed disinfectant flows into the connecting pipe 104 through the check valve 105 until it flows to the atomizing nozzle 106 and is sprayed out to spray disinfectant onto the surface of the cut small slices 4 and large slices 41. Disinfection is achieved by using a device that continuously cuts out damaged or diseased branches before cutting out healthy ones, preventing cross-infection. Furthermore, the rotation of the lever 7 causes the arc strip 107 to rotate, and the arc surface of the arc strip 107 presses against the connecting pipe 104, causing it to deflect and change its angle, thus increasing the spray angle and improving the disinfectant's spraying effect. The disinfectant in the tank 101 only flows into the cavity 102 in measured quantities during the cutting process, ensuring that both small and large slices 41 are disinfected after each cutting operation, and preventing waste of disinfectant.

[0038] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pruning device for breeding trees in landscaping, characterized in that, include: An arm sleeve (1) and a fixing rod (2) are provided. The fixing rod (2) is installed at the front end of the arm sleeve (1). A small slice (4) and a large slice (41) are rotatably installed at the bottom of the fixing rod (2), and a first torsion spring is provided between them. A rear grip (3) is installed at the bottom of the front end of the arm sleeve (1). A push rod (6) is slidably installed on the front side of the arm sleeve (1) near the small slice (4) and the large slice (41). A first spring is provided between the push rod (6) and the arm sleeve (1). Folding rods (81) are installed on both sides of the front end. A rocker arm (7) is sleeved on the surface of the folding rods (81) on both sides. The top of the rocker arm (7) contacts the inner wall of the push rod (6). A front grip (5) is sleeved on the bottom of the rocker arm (7) on both sides. A fixing frame (91) is installed on the bottom left side of the arm sleeve (1). A rotating rod (92) is rotatably installed on the inner side of the fixing frame (91). A strap (93) is connected to the outer wall of the rotating rod (92). A clip (94) is slidably installed on the bottom right side of the arm sleeve (1).

2. The pruning device for breeding garden trees according to claim 1, characterized in that, A pressure rod (85) is slidably installed on the bottom of the inner wall of the push rod (6). A protrusion (810) is installed on the bottom of the pressure rod (85). A locking block (88) is slidably installed on the outer wall of the pressure rod (85). The bottom of the locking block (88) is provided with an arc surface. A push spring is provided between the locking block (88) and the pressure rod (85). A vertical rod (87) is installed on the bottom of the push rod (6). An upper cone block (89) is installed on the top of the vertical rod (87). A lower cone block (811) is slidably installed on the outer wall of the vertical rod (87). A limiting rod (86) is rotatably installed on the inner wall of the push rod (6) near the pressure rod (85). The top of the limiting rod (86) is sleeved on the top of the pressure rod (85). A second spring is provided between the pressure rod (85) and the push rod (6).

3. A pruning device for breeding garden trees according to claim 2, characterized in that, A rotating plate (82) is rotatably mounted on the top of the large slice (41). A second torsion spring is provided between the rotating plate (82) and the large slice (41). Several sliders (84) are slidably mounted on the top of the small slice (4). A stop block (83) is installed on the top of the large slice (41) near the rotating plate (82). The sides of the rotating plate (82) and the sliders (84) that are close to each other are both set as arc surfaces. A support spring is provided between the sliders (84) and the small slice (4).

4. A pruning device for breeding garden trees according to claim 3, characterized in that, A reset spring is provided between the clip (94) and the arm sleeve (1), and several rubber blocks (95) are installed on the surface of the strap (93).

5. A pruning device for breeding garden trees according to claim 4, characterized in that, A long rod (96) slides through the left side of the arm sleeve (1). The front end of the long rod (96) is sleeved on the inner wall of the left rocker arm (7). The long rod (96) passes through the rotating rod (92). A spiral groove (97) is provided on the outer wall of the long rod (96) near the rotating rod (92). An arc head (99) is installed on the inner wall of the rotating rod (92). The arc head (99) fits against the inner wall of the spiral groove (97). An elastic element is provided between the long rod (96) and the arm sleeve (1).

6. A pruning device for breeding garden trees according to claim 5, characterized in that, A straight groove (98) is provided on the outer wall of the long rod (96) near the spiral groove (97), and the straight groove (98) is connected to the spiral groove (97).

7. A pruning device for breeding garden trees according to claim 6, characterized in that, The top of the arm sleeve (1) is provided with a medicine tank (101). A cavity (102) is opened inside the top side of the arm sleeve (1). An opening is opened at the top of the arm sleeve (1). The cavity (102) and the medicine tank (101) are connected through the opening. A pressure plate (103) is slidably installed on the inner wall of the cavity (102). The pressure plate (103) is fixedly connected to a long rod (96). Connecting pipes (104) are installed on both sides of the inner wall of the top side of the arm sleeve (1). The connecting pipes (104) are connected to the cavity (102). A check valve (105) is provided between the cavity (102) and the connecting pipes (104). The front ends of the connecting pipes (104) on both sides pass through the fixing rod (2) and are close to the small slice (4) and the large slice (41) respectively, and are respectively equipped with atomizing nozzles (106).

8. A pruning device for breeding garden trees according to claim 7, characterized in that, An arc strip (107) is installed on the front side of the rocker arm (7). The top of the arc strip (107) is set as an arc surface and contacts the front end of the connecting pipe (104).

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