Pruner and high-yield pruning method for long fruit mulberry

Abstract

The application provides a pruning device and a high-yield pruning method for long fruit mulberry trees, which comprises a handle shell, battery shells and transmission shells arranged at two ends of the handle shell respectively, a pruning head arranged at a free end of the transmission shell, a pruning disc rotatably connected in the pruning head, a plurality of hook-shaped pruning teeth arranged at the edge of the pruning disc in a circumferential distribution, a pruning inlet arranged at one side of the pruning head, two cutting blades arranged at one side of the pruning inlet and matched with the hook-shaped pruning teeth, a driving motor arranged in the handle shell and used for driving the pruning disc to rotate, a liquid storage groove arranged in the pruning head, a dyeing groove arranged at the bottom of the liquid storage groove and extending inwardly on both sides of the hook-shaped pruning teeth, a liquid outlet arranged at one side of each dyeing groove, a rotating shaft rotatably connected to each liquid outlet and capable of rotating with the pruning disc, and a water-absorbing dyeing liquid sleeve arranged outside each rotating shaft. The pruning device can automatically disinfect the cutting blades while pruning, improves the pruning efficiency and reduces the labor intensity.

Description

Technical Field

[0001] This invention belongs to the technical field of fruit tree pruning equipment, and relates to a pruning device and a high-yield pruning method for long-fruited mulberry trees. Background Technology

[0002] In fruit tree cultivation, pruning is a crucial management practice, especially for improving the yield and fruit quality of trees such as the long mulberry (Morus macroura). Proper pruning can optimize canopy structure, increase ventilation and light penetration, promote healthy growth, and effectively reduce the occurrence of pests and diseases. However, in practice, pruning operations face some challenges, particularly the disinfection issues related to the treatment of diseased and weak branches.

[0003] As a fruit tree with high economic value, the long-fruited mulberry requires regular pruning throughout its growth cycle to remove diseased, weak, dead, and overly dense crossing branches, thereby ensuring a good tree shape and sufficient sunlight. These measures help maintain the tree's health, promote new shoot growth, and thus improve fruit yield and quality. However, when dealing with diseased trees, to prevent the spread of pathogens to other healthy trees through pruning tools, the pruning shears, saws, and other tools used must be strictly disinfected after pruning each diseased tree.

[0004] Traditional disinfection methods typically involve wiping or soaking tool surfaces with disinfectant. While this method is effective in killing most pathogenic microorganisms, it also presents significant operational inconveniences: time is required to complete the disinfection process after pruning each diseased tree, which not only reduces overall work efficiency but also increases labor costs. Summary of the Invention

[0005] The purpose of this invention is to provide a pruning device and a high-yield pruning method for long-fruited mulberry trees, which can automatically disinfect the blades while pruning, eliminating cumbersome disinfection procedures, improving the efficiency of pruning work, and reducing labor intensity.

[0006] To solve the above-mentioned technical problems, the present invention provides a pruning device, including a handle housing, a battery housing and a transmission housing respectively provided at both ends of the handle housing, a drive motor provided inside the handle housing, a battery provided inside the battery housing, a pruning head provided at the free end of the transmission housing, a pruning disc rotatably connected inside the pruning head, a plurality of circumferentially distributed hook-shaped pruning teeth provided outward from the edge of the pruning disc, each hook-shaped pruning tooth having the same bending direction, a pruning inlet provided on one side of the pruning head, each hook-shaped pruning tooth being able to extend into the pruning inlet, two shearing blades provided on one side of the pruning inlet that cooperate with the hook-shaped pruning teeth, a gap provided between the two shearing blades for the hook-shaped pruning teeth to pass through, a drive shaft for driving the pruning disc to rotate rotatably connected inside the handle housing, and the power output shaft of the drive motor connected to the drive shaft;

[0007] The trimming head is equipped with a liquid storage tank. The bottom of the liquid storage tank extends inward to both sides of the hook-shaped trimming teeth, and each liquid storage tank has a liquid outlet on the side facing the hook-shaped trimming teeth. Each liquid outlet is rotatably connected to a rotating shaft. Each rotating shaft is fitted with a water-absorbing dye sleeve that matches the liquid outlet. The size of each water-absorbing dye sleeve is sufficient to block the liquid outlet and prevent liquid from flowing out. One end of each rotating shaft is equipped with a drive wheel that contacts the trimming disc. The rotation of the trimming disc can drive the drive wheel to rotate.

[0008] By adopting the above technical solution, when pruning, the branches are placed into the pruning inlet, and the drive motor drives the pruning disc to rotate through the drive shaft. This causes the hook-shaped pruning teeth to cooperate with the shearing blades, which can cut and prune the branches. As the pruning disc continues to rotate, it causes the hook-shaped pruning teeth to rotate and pass through the water-absorbing dye sleeve. The rotating water-absorbing dye sleeve applies disinfectant to the hook-shaped pruning teeth as it passes through, thus disinfecting the surface of the hook-shaped pruning teeth.

[0009] The present invention is further configured such that a worm gear is provided on one side of the trimming disc, and a worm gear meshing with the worm gear is rotatably connected inside the trimming head, and the worm gear is connected to the drive shaft via a coupling.

[0010] The present invention is further configured such that the coupling includes a drive shaft and two universal joints at both ends of the drive shaft connected to the drive shaft and the worm gear, respectively.

[0011] The present invention is further configured such that a liquid inlet is provided at the outer end of the liquid storage tank, and a sealing cap is detachably connected to the liquid inlet.

[0012] The invention is further configured such that each transmission wheel has a transmission tooth on its outer side, and both sides of the edge of the trimming disc have a transmission groove that cooperates with the corresponding transmission tooth.

[0013] The present invention is further configured such that a control button for controlling the operation of the drive motor is provided on one side of the handle housing.

[0014] The present invention is further configured such that the absorbent dye solution sleeve is made of an absorbent sponge.

[0015] This invention also provides a high-yield pruning method for long-fruited mulberry trees, using the pruning device described in any one of claims 1-7. The pruning period is from late winter to early spring, that is, before the trees begin to grow actively, or in summer, to control the tree shape, thin out overly dense branches, and remove diseased and weak branches. Specifically, it includes the following steps:

[0016] S1. Prepare disinfectant and fill it into the storage tank so that the absorbent dye sleeve is completely immersed in the disinfectant.

[0017] S2. Locate branches that are infected by pests and diseases, dead, crossing, parallel, or drooping; locate last year's fruiting mother branches; identify vigorous shoots, dead branches, and old branches that are not capable of bearing fruit; and identify aging and lifeless main branches.

[0018] S3. During pruning, the pruning inlet is inserted into the branch to be pruned, the drive motor is started, and the pruning disc drives the hook-shaped pruning teeth to rotate and cooperate with the shearing blade to cut the branch. After pruning, the hook-shaped pruning teeth rotate to the water-absorbing dye sleeve, and the water-absorbing dye sleeve applies disinfectant to the hook-shaped pruning teeth for disinfection.

[0019] S4. For larger cuts, apply an antiseptic or healing agent.

[0020] More preferably, in step S1, the disinfectant is either 75% alcohol or diluted bleach.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Firstly, when using the combination of hook-shaped pruning teeth and shearing blades to prune branches, the rotation of the pruning disc drives the water-absorbing dye sleeve to rotate and absorb the disinfectant. The disinfectant is then applied to the hook-shaped pruning teeth, disinfecting their surfaces. This eliminates the need for re-disinfection after pruning each fruit tree, removing the cumbersome disinfection process, improving the efficiency of pruning work, reducing labor intensity, and thus increasing yield.

[0023] Secondly, compared with the traditional method of using a cross-shaped scissor structure to prune branches, this invention uses hook-shaped pruning teeth arranged in a circle on the outer periphery of the pruning disc. The branches are pruned by the continuous rotation of the hook-shaped pruning teeth and the cooperation of the scissor blades. Compared with the traditional scissor-type pruner, it does not require pruning by opening and closing the blades. It can continuously rotate and prune, which is convenient for rapid and continuous pruning of branches and helps to improve the pruning speed. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a partial cross-sectional view of the present invention;

[0026] Figure 3 Used to demonstrate the connection between the trimming disc, worm gear, and shaft;

[0027] Figure 4 Used to demonstrate the positional relationship between the hook-shaped trimming teeth, the shearing blade, and the dye bath.

[0028] The components are as follows: 1. Handle shell; 11. Battery shell; 12. Transmission shell; 13. Button; 14. Trimming head; 15. Trimming inlet; 2. Drive motor; 3. Battery; 4. Trimming disc; 41. Hook-shaped trimming teeth; 42. Worm gear; 43. Transmission groove; 5. Shearing blade; 6. Drive shaft; 61. Worm; 62. Transmission shaft; 63. Universal joint; 7. Liquid storage tank; 71. Liquid inlet; 72. Sealing cap; 73. Dye liquor tank; 8. Rotating shaft; 81. Water-absorbing dye liquor sleeve; 82. Transmission wheel; 83. Transmission teeth. Detailed Implementation

[0029] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the pruning device and its high-yield pruning method for long-fruited mulberry trees proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0030] Example 1, referring to Figure 1-4 A pruning tool includes a handle housing 1, with a battery housing 11 and a transmission housing 12 at each end. A drive motor 2 is installed inside the handle housing 1, and a battery 3 is installed inside the battery housing 11. A control button 13 for controlling the operation of the drive motor 2 is located on one side of the handle housing 1. A pruning head 14 is located at the free end of the transmission housing 12. A pruning disc 4 is rotatably connected inside the pruning head 14. Four circumferentially distributed hook-shaped pruning teeth 41 are arranged outward from the edge of the pruning disc 4. Each hook-shaped pruning tooth 41 has the same bending direction. A pruning inlet 15 is located on one side of the pruning head 14. Each hook-shaped pruning tooth 41 can extend into the pruning inlet 15. Two cutting blades 5 are provided on one side of the pruning inlet 15 to cooperate with the hook-shaped pruning teeth 41. A gap is left between the two cutting blades 5 to allow the hook-shaped pruning teeth 41 to pass through. The cooperation between the hook-shaped pruning teeth 41 and the cutting blades 5 can cut and prune branches.

[0031] A drive shaft 6 for rotating the trimming disc 4 is rotatably connected inside the handle housing 1. The power output shaft of the drive motor 2 is connected to the drive shaft 6. A worm gear 42 is provided on one side of the trimming disc 4. A worm 61 that meshes with the worm gear 42 is rotatably connected inside the trimming head 14. The worm 61 is connected to the drive shaft 6 through a coupling to facilitate the spatial arrangement of the drive motor 2. The coupling includes a drive shaft 62 and two universal joints 63 that are connected to the drive shaft 6 and the worm 61 at both ends of the drive shaft 62, respectively.

[0032] The trimming head 14 is equipped with a liquid storage tank 7, and a liquid inlet 71 is provided at the outer end of the liquid storage tank 7. The liquid inlet 71 is detachably connected to a sealing cap 72. The bottom of the liquid storage tank 7 extends inward to both sides of the hook-shaped trimming teeth 41, and a dyeing liquid tank 73 is provided on both sides. Each dyeing liquid tank 73 has a liquid outlet on the side facing the hook-shaped trimming teeth 41 (not shown). Each liquid outlet is rotatably connected to a rotating shaft 8. Each rotating shaft 8 is fitted with a water-absorbing dyeing liquid sleeve 81 that cooperates with the liquid outlet. The water-absorbing dyeing liquid sleeve 81 is made of water-absorbing sponge. The size of the water-absorbing dye sleeve 81 is sufficient to block the outlet and prevent the liquid from flowing out. The water-absorbing dye sleeve 81 absorbs the disinfectant in the dye tank 73 and rotates to apply it to the hook-shaped trimming teeth 41 for disinfection. Each rotating shaft 8 has a transmission wheel 82 at one end that contacts the trimming disc 4. Each transmission wheel 82 has multiple transmission teeth 83 on its outer side. Both sides of the edge of the trimming disc 4 have multiple transmission grooves 43 that cooperate with the corresponding transmission teeth 83, so that the rotation of the trimming disc 4 can drive the transmission wheel 82 to rotate, and finally drive the water-absorbing dye sleeve 81 to rotate with the trimming disc 4.

[0033] Working principle: When pruning, the branch is placed into the pruning inlet 15. The drive motor 2 drives the worm gear 61 to rotate through the drive shaft 6 and coupling. The rotation of the worm gear 61 drives the worm wheel 42 to rotate, which in turn drives the pruning disc 4 to rotate. This causes the hook-shaped pruning teeth 41 to engage with the shearing blade 5, thus cutting off the branch. As the pruning disc 4 continues to rotate, it drives the hook-shaped pruning teeth 41 to rotate and pass through the water-absorbing dye sleeve 81. The rotating water-absorbing dye sleeve 81 applies disinfectant to the hook-shaped pruning teeth 41, disinfecting the surface of the hook-shaped pruning teeth 41.

[0034] Example 2: A high-yield pruning method for long-fruited mulberry trees. Pruning is carried out from late winter to early spring, before the trees begin to grow actively, or in summer. The method involves controlling the tree shape, thinning out overly dense branches, and removing diseased and weak branches. Specifically, it includes the following steps:

[0035] S1. Prepare either 75% alcohol or diluted bleach and pour it into the storage tank 7 so that the absorbent dye sleeve 81 is completely immersed in the disinfectant.

[0036] S2. Locate branches that are infected by pests and diseases, dead, crossing, parallel, or drooping; find last year's fruiting mother branches; identify vigorous shoots, dead branches, and old branches that are not capable of bearing fruit; and identify aging and inactive main branches.

[0037] S3. During pruning, the pruning inlet 15 is inserted into the branch to be pruned, the drive motor 2 is started, and the pruning disc 4 drives the hook-shaped pruning teeth 41 to rotate and cooperate with the shearing blade 5 to cut the branch. After pruning, the hook-shaped pruning teeth 41 rotate to the water-absorbing dye sleeve 81, and the water-absorbing dye sleeve 81 applies disinfectant to the hook-shaped pruning teeth 41 for disinfection.

[0038] Thin out overly dense branches, completely removing these undesirable branches from the base. Thin out overly dense areas, retaining evenly distributed lateral branches with good angles to ensure good ventilation and light penetration inside the canopy.

[0039] Shorten the fruiting branches, leaving 2-3 plump buds on each fruiting branch and cutting off the rest. Be careful not to shorten them too much, so as not to weaken the tree.

[0040] Rejuvenation involves selecting robust new shoots as new backbone branches for cultivation, gradually replacing old branches with new ones to maintain the tree's youthfulness.

[0041] Clean up ineffective consumption, promptly remove overgrown branches, dead branches, and old branches that have no fruiting capacity, and appropriately prune excessively long or weak branches to make the tree shape more compact and concentrate nutrients on the effective fruiting parts.

[0042] S4. For larger cuts, apply an antiseptic or healing agent.

[0043] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0044] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A pruning tool, comprising a handle housing (1), characterized in that, The handle housing (1) has a battery housing (11) and a transmission housing (12) at its two ends respectively. A drive motor (2) is installed inside the handle housing (1). A battery (3) is installed inside the battery housing (11). A trimming head (14) is installed at the free end of the transmission housing (12). A trimming disc (4) is rotatably connected inside the trimming head (14). Multiple circumferentially distributed hook-shaped trimming teeth (41) are arranged outwards from the edge of the trimming disc (4). The bending direction of each hook-shaped trimming tooth (41) is the same. The trimming head (11)... 4) is provided with a trimming inlet (15) on one side, and each hook-shaped trimming tooth (41) can extend into the trimming inlet (15). Two shearing blades (5) that cooperate with the hook-shaped trimming tooth (41) are provided on one side of the trimming inlet (15). A gap is left between the two shearing blades (5) for the hook-shaped trimming tooth (41) to pass through. A drive shaft (6) for driving the trimming disc (4) to rotate is rotatably connected inside the handle housing (1). The power output shaft of the drive motor (2) is connected to the drive shaft (6). The trimming head (14) is provided with a liquid storage tank (7). The bottom of the liquid storage tank (7) extends inward to both sides of the hook-shaped trimming teeth (41) and is provided with a dyeing liquid tank (73). Each dyeing liquid tank (73) has an outlet on the side facing the hook-shaped trimming teeth (41). Each outlet is rotatably connected to a rotating shaft (8). Each rotating shaft (8) is fitted with a water-absorbing dyeing liquid sleeve (81) that matches the outlet. The size of each water-absorbing dyeing liquid sleeve (81) is large enough to block the outlet so that the liquid does not flow out. One end of each rotating shaft (8) is provided with a transmission wheel (82) that contacts the trimming disc (4). The rotation of the trimming disc (4) can drive the transmission wheel (82) to rotate.

2. A pruning device according to claim 1, characterized in that, A worm gear (42) is provided on one side of the trimming disc (4), and a worm (61) that meshes with the worm gear (42) is rotatably connected inside the trimming head (14). The worm (61) is connected to the drive shaft (6) through a coupling.

3. A pruning device according to claim 2, characterized in that, The coupling includes a drive shaft (62) and two universal joints (63) at both ends of the drive shaft (62) that are respectively connected to the drive shaft (6) and the worm gear (61).

4. A pruning device according to claim 1, characterized in that, The outer end of the liquid storage tank (7) is provided with a liquid inlet (71), and the liquid inlet (71) is detachably connected with a sealing cap (72).

5. A pruning device according to claim 1, characterized in that, Each transmission wheel (82) has a transmission tooth (83) on its outer side, and the trimming disc (4) has a transmission groove (43) on both sides of its edge that matches the corresponding transmission tooth (83).

6. A pruning device according to claim 1, characterized in that, A control button (13) for controlling the operation of the drive motor (2) is provided on one side of the handle housing (1).

7. A pruning device according to claim 1, characterized in that, The absorbent dye sleeve (81) is made of absorbent sponge.

8. A method for high-yield pruning of long-fruited mulberry trees, using the pruning device described in any one of claims 1-7, characterized in that, Pruning should be carried out from late winter to early spring, before the trees begin to grow actively, or in summer. This involves controlling the tree shape, thinning out overly dense branches, and removing diseased or weak branches. The specific steps include: S1. Prepare disinfectant and fill it into the storage tank (7) so that the absorbent dye sleeve (81) is completely immersed in the disinfectant. S2. Locate branches that are infected by pests and diseases, dead, crossing, parallel, or drooping; locate last year's fruiting mother branches; identify vigorous shoots, dead branches, and old branches that are not capable of bearing fruit; and identify aging and lifeless main branches. S3. When pruning, the pruning inlet (15) is inserted into the branch to be pruned, and the drive motor (2) is started, so that the pruning disc (4) drives the hook-shaped pruning teeth (41) to rotate and cooperate with the shearing blade (5) to cut the branch. After pruning, the hook-shaped pruning teeth (41) rotate to the water-absorbing dye sleeve (81), and the water-absorbing dye sleeve (81) applies disinfectant to the hook-shaped pruning teeth (41) for disinfection. S4. For larger cuts, apply an antiseptic or healing agent.

9. A method for high-yield pruning of long-fruited mulberry trees according to claim 8, characterized in that, In step S1, the disinfectant is either 75% alcohol or diluted bleach.

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