Branch pruning device for forest fruits

Abstract

The invention relates to the technical field of branch pruning, in particular to a branch pruning device for forest fruits. The branch pruning device for forest fruits comprises a pressing assembly, an extending assembly, a scissor assembly and two protection fixing mechanisms, each protection fixing mechanism comprises a fixing assembly and a protection assembly, each fixing assembly comprises a supporting shell, a plurality of extrusion springs and a sliding plate, and each protection assembly comprises a protection cleaning part and an air bag part. The extension assembly can enlarge the pruning range of the pruning device, the scissor assembly is used for pruning branches, a fixing assembly of the protection fixing mechanism can be matched with the scissor assembly to fix the branches and prevent the branches from being disengaged from the scissor assembly during pruning, and a protection cleaning piece of the protection assembly can prevent dust and chippings from being attached to the scissor assembly. And the air bag piece can blow away dust and chippings adsorbed on the scissor assembly and accelerate drying of the scissor assembly.

Description

Technical Field

[0001] The invention relates to the technical field of tree branch pruning, and in particular to a tree branch pruning device for fruit trees. Background Art

[0002] The branch pruning device for fruit trees is a tool or equipment used to cut and trim the branches of fruit trees. Manual pruning devices include ordinary pruning shears and high branch shears. The high branch shears are mainly used to prune branches at higher positions. The high branch shears are equipped with a telescopic rod and a pruning head. The telescopic rod can adjust the length as needed. The design of the pruning head is more flexible. Some can rotate to a certain angle to facilitate pruning branches from different directions. High branch shears are suitable for pruning high thin branches of garden trees, such as pruning small branches at the edge of the canopy of street greening trees. They can maintain the overall shape of the trees and avoid the danger of climbing operations. At present, the branch pruning device for fruit trees is prone to shaking when pruning high branches. When shaking, the branches are easy to fall off the pruning device. At the same time, the pruning device is easy to be attached with debris and liquid during pruning. The debris is easy to affect the subsequent work of the pruning device, and the liquid is easy to cause corrosion if it adheres to the pruning device for a long time, thereby shortening the service life of the pruning device. Summary of the invention

[0003] Based on this, it is necessary to provide a branch pruning device for fruit trees to solve at least one of the above technical problems.

[0004] A branch pruning device for forestry and fruit trees comprises a pressing assembly, an extension assembly, a scissors assembly and two protective fixing mechanisms, wherein one end of the extension assembly is connected to the pressing assembly, and the scissors assembly is connected to the other end of the extension assembly, and the two protective fixing mechanisms are respectively fixedly installed on both sides of the scissors assembly, and each protective fixing mechanism comprises a fixing assembly and a protective assembly, the fixing assembly is fixedly connected to the side wall of the scissors assembly, and the protective assembly is connected to the fixing assembly, the fixing assembly comprises a supporting shell, a plurality of extrusion springs and a sliding plate, the supporting shell is fixedly installed on the side wall of the scissors assembly, a sliding groove is provided at the bottom of the supporting shell, one end of the plurality of extrusion springs are fixedly connected to the side wall of the sliding groove, the sliding plate is slidably clamped in the sliding groove, and one end of the sliding plate is fixedly connected to the other end of the plurality of extrusion springs, the protective assembly comprises a protective cleaning member and an airbag member, one side wall of the protective cleaning member is fixedly connected to one end side wall of the sliding plate, and the airbag member is connected to the other side wall of the protective cleaning member.

[0005] The pressing component can start the scissor component to prune branches, the extending component can expand the pruning range of the pruning device, the scissor component is used to prune branches, the fixing component of the protective fixing mechanism can cooperate with the scissor component to fix the branches during pruning to prevent the branches from falling out of the scissor component, the protective cleaning part of the protective component can prevent dust and debris from adhering to the scissor component, thereby affecting the sharpness of the scissor component and the cutting effect of the scissor component, and the airbag component can blow away the dust and debris adsorbed on the scissor component and accelerate the drying of the scissor component.

[0006] In one embodiment, the pressing assembly includes a fixed handle and a starting handle, one end of the fixed handle is sleeved on one end of the extension assembly, and the starting handle is hingedly connected to the middle portion of the fixed handle.

[0007] In one embodiment, the extension assembly includes a storage tube, an adjustment ring, an extension tube and a retraction rod, one end of the storage tube is fixedly inserted in one end of the fixed handle, the adjustment ring is fixedly sleeved on the other end of the storage tube, the extension tube is slidably inserted in the other end of the storage tube, the retraction rod is stored in the storage tube and the extension tube, one end of the retraction rod is connected to the starting handle, and the other end of the retraction rod is connected to the scissors assembly.

[0008] In one embodiment, the scissors assembly includes a fixing member and an L-shaped scissors member, one end of the fixing member is fixedly inserted into the other end of the extension tube, the scissors member is hingedly connected to the middle part of the fixing member, and one end of the scissors member is connected to the other end of the retraction rod, and the fixing member and the scissors member are staggered.

[0009] In one embodiment, the fixing member includes a stop plate and two second magnets, one end of the stop plate is fixedly inserted into the other end of the extension tube, and the two second magnets are respectively installed on the two side walls of the other end of the stop plate.

[0010] In one embodiment, a hinge groove is formed at the other end of the retaining plate, and the other end of the retaining plate is installed on a positioning arc rod, one end of the positioning arc rod is inserted into the hinge groove, and one end of the positioning arc rod is hingedly connected to the side wall of the hinge groove.

[0011] In one embodiment, the scissors member includes a flip section and a blade section, the flip section is connected to the other end of the retracting rod, one end of the blade section is vertically connected to one end of the flip section, and the connection between the blade section and the flip section is hingedly connected to the middle part of the abutment plate.

[0012] In one embodiment, a side wall of the sliding groove adjacent to the blade segment is provided with an air outlet groove, and the air outlet groove penetrates the upper and lower side wall surfaces of the supporting shell.

[0013] In one embodiment, the protective cleaning member includes a cleaning brush and a first magnet. The side wall of one end of the cleaning brush is fixedly connected to the other end of the sliding plate. The first magnet is installed on the other side wall of one end of the cleaning brush. The other end of the cleaning brush is provided with an inclined surface.

[0014] In one embodiment, the airbag component includes a protective plate and an airbag, the protective plate is slidably mounted on the outside of the first magnet, the airbag is accommodated inside the protective plate, a passage groove is provided on the side of the protective plate adjacent to the blade segment, the passage groove runs through the side wall surface of the protective plate adjacent to the blade segment, a plurality of air outlet holes are provided on the side of the airbag adjacent to the blade segment, the plurality of air outlet holes are inclined toward the other end of the cleaning brush, and a plurality of contraction springs are installed inside the airbag. The first magnet and the second magnet have opposite magnetic properties.

[0015] The present invention provides an air bag. When the start handle is pressed, the start handle pulls the retracting rod to move backward, and the flipping section of the scissors piece moves backward following the retracting rod, so that the blade segment flips downward and moves toward the stop plate. When the blade segment flips downward and moves toward the stop plate, the protective plate will contact the branch at the first time. When the branch is pressed downward by the protective plate to the top of the stop plate, the blade segment continues to flip downward, and the protective plate will flip upward. The protective plate moves toward the first magnet side, the air bag is compressed, and the multiple retracting springs are contracted. The gas inside the air bag is discharged through the multiple air outlets, and the gas is used for flushing and cleaning. The gas can also accelerate the drying of the cleaning brush to prevent the blade segment from being soaked in liquid when cutting branches with liquid flowing out, thereby accelerating the corrosion rate of the blade segment. The cleaning brush can clean the liquid soaked on the blade segment. At the same time, under the blowing of the gas, the air flow around the cleaning brush is accelerated, thereby accelerating the drying of the cleaning brush to prevent the liquid on the cleaning brush from returning to the surface of the blade segment during the next cleaning.

[0016] By setting a cleaning brush, after the airbag is contracted, the protective plate will move toward the side of the supporting shell, and the protective plate will squeeze the sliding plate to move toward the side of the extrusion spring. The extrusion spring will contract, and the cleaning brush will follow the protective plate to move toward the side of the supporting shell, so that the cleaning brush can clean the surface of the knife segment to prevent dust and debris from sticking to the knife segment, affecting the sharpness of the knife segment, and further affecting the cutting effect of the knife segment.

[0017] By setting a squeezing spring, when the protective plate squeezes the sliding plate to move toward the squeezing spring, when the squeezing spring contracts, the squeezing spring will generate a restoring force so that the protective plate can cooperate with the resisting plate to fix the branch, thereby preventing the branch from shaking greatly during pruning, thereby affecting the pruning result.

[0018] By setting the second magnet and the first magnet, during cutting, the distance between the second magnet and the first magnet is reduced due to the compression of the airbag, and the magnetic force of mutual attraction between the second magnet and the first magnet can reduce the force applied to the starting handle, thereby reducing the burden on the trimmer. After trimming is completed, the bottom of the blade segment is at the same height as the top of the stop plate, and the blade segment will not contact the second magnet, thereby preventing the blade segment from hitting the second magnet and causing damage to the blade segment.

[0019] By providing a cleaning brush, when the trimming device is not in use, the cleaning brush can be partially covered on the outside of the blade segment to prevent dust and debris from sticking to the blade segment, thereby affecting the sharpness of the blade segment and the cutting effect of the blade segment; at the same time, when the trimming device is not in use, the first magnet can be adsorbed on the second magnet to prevent the blade segment from being separated from the retaining plate, and the blade segment is exposed to the air after being separated. After being exposed to the air for a long time, dust and debris are easily attached to the blade segment, thereby affecting the sharpness of the blade segment and the cutting effect of the blade segment.

[0020] The present invention has a simple structure, can freely adjust the length of the pruning device, and can well protect the pruning blade when the pruning device is not in use. At the same time, when pruning branches, the pruning device is not easy to shake, the branches are not easy to fall out of the pruning device, and the pruning device is not easy to be damaged, thereby improving the pruning efficiency of the branches. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of an overall embodiment.

[0022] Figure 2 An embodiment Figure 1 A magnified schematic diagram of center A.

[0023] Figure 3 The figure is a three-dimensional schematic diagram of a scissors assembly according to an embodiment.

[0024] Figure 4 It is a three-dimensional schematic diagram of an embodiment after a portion of the protective fixing mechanism is removed.

[0025] Figure 5 The figure is a cross-sectional schematic diagram of a fixing assembly according to an embodiment.

[0026] In the figure: 10, pressing assembly; 11, fixing handle; 12, starting handle; 20, extension assembly; 21, storage tube; 22, adjustment ring; 23, extension tube; 24, retracting rod; 30, scissors assembly; 31, fixing member; 32, scissors member; 33, stop plate; 34, second magnet; 320, flip section; 321, knife segment; 330, hinge groove; 331, locking arc rod; 40, protective fixing mechanism; 50, fixing assembly; 51, supporting shell; 52, extrusion spring; 53, sliding plate; 510, sliding groove; 511, air outlet groove; 60, protective assembly; 70, protective cleaning member; 71, airbag member; 700, cleaning brush; 701, first magnet; 702, inclined surface; 710, protective plate; 711, airbag; 712, passage groove; 713, air outlet. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] An embodiment provided by the present invention is as follows: Figures 1 to 5As shown, a branch pruning device for fruit trees includes a pressing component 10, an extension component 20, a scissor component 30 and two protective fixing mechanisms 40. One end of the extension component 20 is connected to the pressing component 10, and the scissor component 30 is connected to the other end of the extension component 20. The two protective fixing mechanisms 40 are respectively fixedly installed on both sides of the scissor component 30. Each protective fixing mechanism 40 includes a fixing component 50 and a protective component 60. The fixing component 50 is fixedly connected to the side wall of the scissor component 30, and the protective component 60 is connected to the fixing component 50. The fixing component 50 includes a supporting shell 51, a plurality of The extrusion spring 52 and the sliding plate 53, and the support shell 51 are fixedly installed on the side wall of the scissors assembly 30. A sliding groove 510 is opened at the bottom of the support shell 51. One ends of multiple extrusion springs 52 are fixedly connected to the side wall of the sliding groove 510. The sliding plate 53 is slidably clamped in the sliding groove 510, and one end of the sliding plate 53 is fixedly connected to the other end of the multiple extrusion springs 52. The protective assembly 60 includes a protective cleaning member 70 and an airbag member 71. One side wall of the protective cleaning member 70 is fixedly connected to one end side wall of the sliding plate 53, and the airbag member 71 is connected to the other side wall of the protective cleaning member 70.

[0031] The pressing assembly 10 can start the scissor assembly 30 to prune branches, the extending assembly 20 can expand the pruning range of the pruning device, the scissor assembly 30 is used to prune branches, the fixing assembly 50 of the protective fixing mechanism 40 can cooperate with the scissor assembly 30 to fix the branches during pruning to prevent the branches from falling out of the scissor assembly 30, the protective cleaning member 70 of the protective assembly 60 can prevent dust and debris from adhering to the scissor assembly 30, thereby affecting the sharpness of the scissor assembly 30 and the cutting effect of the scissor assembly 30, and the airbag member 71 can blow away the dust and debris adsorbed on the scissor assembly 30 and accelerate the drying of the scissor assembly 30.

[0032] like Figure 1 As shown, the pressing assembly 10 includes a fixed handle 11 and a starting handle 12 . One end of the fixed handle 11 is sleeved on one end of the extension assembly 20 , and the starting handle 12 is hingedly connected to the middle of the fixed handle 11 .

[0033] like Figure 1 to Figure 2 As shown, the extension assembly 20 includes a storage tube 21, an adjustment ring 22, an extension tube 23 and a retraction rod 24. One end of the storage tube 21 is fixedly inserted in one end of the fixed handle 11, the adjustment ring 22 is fixedly sleeved on the other end of the storage tube 21, the extension tube 23 is slidably inserted in the other end of the storage tube 21, the retraction rod 24 is stored in the storage tube 21 and the extension tube 23, and one end of the retraction rod 24 is connected to the starting handle 12, and the other end of the retraction rod 24 is connected to the scissors assembly 30.

[0034] like Figures 3 to 5As shown, the scissors assembly 30 includes a fixing member 31 and an L-shaped scissors member 32. One end of the fixing member 31 is fixedly inserted into the other end of the extension tube 23. The scissors member 32 is hingedly connected to the middle part of the fixing member 31, and one end of the scissors member 32 is connected to the other end of the retracting rod 24. The fixing member 31 and the scissors member 32 are staggered.

[0035] like Figures 2 to 4 As shown, the fixing member 31 includes a stop plate 33 and two second magnets 34 . One end of the stop plate 33 is fixedly inserted into the other end of the extension tube 23 , and the two second magnets 34 are respectively installed on the two side walls of the other end of the stop plate 33 .

[0036] like Figures 3 to 5 As shown, a hinge groove 330 is formed at the other end of the resisting plate 33, and the other end of the resisting plate 33 is installed on a locking arc rod 331, one end of the locking arc rod 331 is inserted into the hinge groove 330, and one end of the locking arc rod 331 is hingedly connected to the side wall of the hinge groove 330.

[0037] like Figures 3 to 5 As shown, the scissors member 32 includes a flip section 320 and a blade segment 321. The flip section 320 is connected to the other end of the retracting rod 24. One end of the blade segment 321 is vertically connected to one end of the flip section 320. The connection between the blade segment 321 and the flip section 320 is hingedly connected to the middle part of the stop plate 33.

[0038] like Figures 3 to 5 As shown, a side wall of the sliding groove 510 adjacent to the blade segment 321 is provided with an air outlet groove 511 , and the air outlet groove 511 penetrates the upper and lower side wall surfaces of the supporting shell 51 .

[0039] like Figure 2 As shown, the protective cleaning member 70 includes a cleaning brush 700 and a first magnet 701. The side wall of one end of the cleaning brush 700 is fixedly connected to the other end of the sliding plate 53. The first magnet 701 is installed on the other side wall of one end of the cleaning brush 700. The other end of the cleaning brush 700 is provided with an inclined surface 702.

[0040] like Figure 3 to Figure 4 As shown, the airbag component 71 includes a protective plate 710 and an airbag 711. The protective plate 710 is slidably mounted on the outside of the first magnet 701, and the airbag 711 is accommodated in the inside of the protective plate 710. A passage groove 712 is provided on the side of the protective plate 710 adjacent to the blade segment 321. The passage groove 712 runs through the side wall surface of the protective plate 710 adjacent to the blade segment 321. A plurality of air outlet holes 713 are provided on the side of the airbag 711 adjacent to the blade segment 321. The plurality of air outlet holes 713 are inclined toward the other end of the cleaning brush 700. A plurality of contraction springs are installed inside the airbag 711. The first magnet 701 and the second magnet 34 have opposite magnetic properties.

[0041] During installation: the two protective fixing mechanisms 40 are respectively fixedly installed on the two sides of the scissors assembly 30, the supporting shell 51 is fixedly installed on the side wall of the scissors assembly 30, the two second magnets 34 are respectively installed on the two side walls of the other end of the resisting plate 33, the other end of the resisting plate 33 is installed on the locking arc rod 331, and the first magnet 701 is installed on the other side wall of one end of the cleaning brush 700.

[0042] When in use: 1. The tightness of the adjusting ring 22 can be adjusted, and then the length of the extension tube 23 inserted into the storage tube 21 can be adjusted, so as to extend the pruning distance of the pruning device, and the pruning device is moved close to the fruit tree branch, and the fruit tree branch enters between the fixing part 31 and the scissors part 32, and the starting handle 12 is pressed. The starting handle 12 pulls the retracting rod 24 to move backward, and the flipping section 320 of the scissors part 32 moves backward with the retracting rod 24, so that the blade segment 321 flips downward and moves toward the stop plate 33. When the blade segment 321 flips downward and moves toward the stop plate 33, the protective plate 710 will contact the branch for the first time. When the branch is squeezed downward by the protective plate 710 to the top of the stop plate 33, the blade segment 321 continues to flip downward, and the protective plate 710 will flip upward. The protective plate 710 moves toward the side of the first magnet 701, and the airbag 711 presses The gas in the airbag 711 is discharged through the multiple air outlet holes 713, and the gas is used to flush the cleaning brush 700, so that the dust and debris attached to the cleaning brush 700 fall off, so as to prevent the dust and debris attached to the cleaning brush 700 from affecting the sharpness of the blade segment 321, thereby affecting the cutting effect of the blade segment 321; at the same time, the gas can also accelerate the drying of the cleaning brush 700, so as to prevent the blade segment 321 from infiltrating the liquid on the blade segment 321 when cutting a branch with liquid flowing out, thereby accelerating the corrosion rate of the blade segment 321, and the cleaning brush 700 can clean the liquid infiltrated on the blade segment 321. At the same time, under the blowing of the gas, the air flow around the cleaning brush 700 is accelerated, thereby accelerating the drying of the cleaning brush 700, and preventing the liquid on the cleaning brush 700 from returning to the surface of the blade segment 321 during the next cleaning.

[0043] 2. After the airbag 711 is completely shrunk, the protective plate 710 will move toward the side of the supporting shell 51, and the protective plate 710 will squeeze the sliding plate 53 to move toward the side of the squeezing spring 52. The squeezing spring 52 will shrink, and the cleaning brush 700 will follow the protective plate 710 to move toward the side of the supporting shell 51, so that the cleaning brush 700 can clean the surface of the blade segment 321 to prevent dust and debris from sticking to the blade segment 321 and affecting the sharpness of the blade segment 321, thereby affecting the cutting effect of the blade segment 321.

[0044] 3. When the protective plate 710 squeezes the sliding plate 53 to move toward the side of the squeezing spring 52 and the squeezing spring 52 contracts, the squeezing spring 52 will generate a restoring force so that the protective plate 710 can cooperate with the stop plate 33 to fix the branch, thereby preventing the branch from shaking greatly during pruning, thereby affecting the pruning result.

[0045] 4. During cutting, due to the compression of the airbag 711, the distance between the second magnet 34 and the first magnet 701 is reduced. The magnetic force of mutual attraction between the second magnet 34 and the first magnet 701 can reduce the force applied to the starting handle 12, thereby reducing the burden on the trimmer. After trimming is completed, the bottom of the blade segment 321 is at the same height as the top of the stop plate 33, and the blade segment 321 will not contact the second magnet 34, preventing the blade segment 321 from hitting the second magnet 34, thereby affecting the damage of the blade segment 321.

[0046] 5. When the pruning device is not in use, the cleaning brush 700 can be partially covered on the outside of the blade segment 321 to prevent dust and debris from adhering to the blade segment 321, thereby affecting the sharpness of the blade segment 321 and the cutting effect of the blade segment 321; at the same time, when the pruning device is not in use, the first magnet 701 can be adsorbed on the second magnet 34 to prevent the blade segment 321 from being separated from the abutment plate 33. After the blade segment 321 is separated, it is exposed to the air. After being exposed to the air for a long time, dust and debris are easily attached to the blade segment 321, thereby affecting the sharpness of the blade segment 321 and the cutting effect of the blade segment 321. The positioning arc rod 331 can prevent the branches from being squeezed out between the blade segment 321 and the abutment plate 33 by the blade segment 321, thereby failing to complete the pruning of the branches. The locking arc rod 331 can flip toward the side of the starting handle 12 under the pressure of the branch. After the branch enters between the knife segment 321 and the stop plate 33, the branch is separated from the push of the locking arc rod 331, and the locking arc rod 331 returns to its original state. The locking arc rod 331 will not flip toward the side away from the starting handle 12 under the pressure of the branch, preventing the branch from being separated from the knife segment 321 and the stop plate 33 during pruning, thereby making it impossible to complete the pruning of the branch.

[0047] The present invention provides an airbag 711. When the start handle 12 is pressed, the start handle 12 pulls the retracting rod 24 to move backward, and the flip section 320 of the scissor member 32 moves backward following the retracting rod 24, so that the blade segment 321 flips downward and moves toward the abutment plate 33. When the blade segment 321 flips downward and moves toward the abutment plate 33, the protective plate 710 will contact the tree branch for the first time. When the tree branch is pressed downward by the protective plate 710 to the top of the abutment plate 33, the blade segment 321 continues to flip downward, and the protective plate 710 will flip upward. The protective plate 710 moves toward the side of the first magnet 701, the airbag 711 is compressed, and the multiple contraction springs are contracted. The gas inside the airbag 711 is discharged through the multiple air outlet holes 713, and the gas is used The gas can also be used to flush the cleaning brush 700, so that the dust and debris attached to the cleaning brush 700 fall off, preventing the dust and debris attached to the cleaning brush 700 from affecting the sharpness of the blade segment 321, thereby affecting the cutting effect of the blade segment 321; at the same time, the gas can also accelerate the drying of the cleaning brush 700, preventing the blade segment 321 from infiltrating the liquid on the blade segment 321 when cutting branches with liquid flowing out, thereby accelerating the corrosion rate of the blade segment 321, and the cleaning brush 700 can clean the liquid infiltrated on the blade segment 321. At the same time, under the blowing of the gas, the air flow around the cleaning brush 700 is accelerated, thereby accelerating the drying of the cleaning brush 700, preventing the liquid on the cleaning brush 700 from returning to the surface of the blade segment 321 during the next cleaning.

[0048] By setting the cleaning brush 700, after the airbag 711 is completely shrunk, the protective plate 710 will move toward the side of the supporting shell 51, and the protective plate 710 will squeeze the sliding plate 53 to move toward the side of the squeezing spring 52. The squeezing spring 52 will shrink, and the cleaning brush 700 will follow the protective plate 710 to move toward the side of the supporting shell 51, so that the cleaning brush 700 can clean the surface of the blade segment 321 to prevent dust and debris from sticking to the blade segment 321 and affecting the sharpness of the blade segment 321, thereby affecting the cutting effect of the blade segment 321.

[0049] By setting the extrusion spring 52, when the protective plate 710 squeezes the sliding plate 53 to move toward the side of the extrusion spring 52, when the extrusion spring 52 contracts, the extrusion spring 52 will generate a restoring force so that the protective plate 710 can cooperate with the stop plate 33 to fix the branch, thereby preventing the branch from shaking greatly during pruning, thereby affecting the pruning result.

[0050] By setting the second magnet 34 and the first magnet 701, during cutting, the distance between the second magnet 34 and the first magnet 701 is reduced due to the compression of the airbag 711. The magnetic force of mutual attraction between the second magnet 34 and the first magnet 701 can reduce the force applied to the starting handle 12, thereby reducing the burden on the trimmer. After trimming is completed, the bottom of the blade segment 321 is at the same height as the top of the stop plate 33, and the blade segment 321 will not contact the second magnet 34, thereby preventing the blade segment 321 from hitting the second magnet 34 and causing damage to the blade segment 321.

[0051] By providing a cleaning brush 700, when the trimming device is not in use, the cleaning brush 700 can be partially covered on the outside of the blade segment 321 to prevent dust and debris from adhering to the blade segment 321, thereby affecting the sharpness of the blade segment 321 and the cutting effect of the blade segment 321; at the same time, when the trimming device is not in use, the first magnet 701 can be adsorbed on the second magnet 34 to prevent the blade segment 321 from being separated from the stop plate 33. After the blade segment 321 is separated, it is exposed to the air. After being exposed to the air for a long time, dust and debris are easily attached to the blade segment 321, thereby affecting the sharpness of the blade segment 321 and the cutting effect of the blade segment 321.

[0052] The present invention has a simple structure, can freely adjust the length of the pruning device, and can well protect the pruning blade when the pruning device is not in use. At the same time, when pruning branches, the pruning device is not easy to shake, the branches are not easy to fall out of the pruning device, and the pruning device is not easy to be damaged, thereby improving the pruning efficiency of the branches.

[0053] All possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A branch pruning device for fruit trees, characterized in that: The invention comprises a pressing component (10), an extension component (20), a scissor component (30) and two protective fixing mechanisms (40), wherein one end of the extension component (20) is connected to the pressing component (10), the scissor component (30) is connected to the other end of the extension component (20), the two protective fixing mechanisms (40) are respectively fixedly mounted on two sides of the scissor component (30), each protective fixing mechanism (40) comprises a fixing component (50) and a protective component (60), the fixing component (50) is fixedly connected to a side wall of the scissor component (30), the protective component (60) is connected to the fixing component (50), and the fixing component (50) comprises a supporting shell (51), a plurality of extrusion springs (52) and The sliding plate (53) and the supporting shell (51) are fixedly mounted on the side wall of the scissor assembly (30); a sliding groove (510) is provided at the bottom of the supporting shell (51); one end of each of the plurality of extrusion springs (52) is fixedly connected to the side wall of the sliding groove (510); the sliding plate (53) is slidably clamped in the sliding groove (510); one end of each of the sliding plate (53) is fixedly connected to the other end of each of the plurality of extrusion springs (52); the protective assembly (60) comprises a protective cleaning member (70) and an airbag member (71); one side wall of the protective cleaning member (70) is fixedly connected to the side wall of one end of the sliding plate (53); and the airbag member (71) is connected to the other side wall of the protective cleaning member (70).

2. The branch pruning device for fruit trees according to claim 1, characterized in that: The pressing assembly (10) comprises a fixed handle (11) and a starting handle (12); one end of the fixed handle (11) is sleeved on one end of the extension assembly (20); and the starting handle (12) is hingedly connected to the middle of the fixed handle (11).

3. The device for pruning branches for forestry and fruit trees according to claim 2, characterized in that: The extension assembly (20) comprises a storage tube (21), an adjustment ring (22), an extension tube (23) and a retractable rod (24); one end of the storage tube (21) is fixedly inserted into one end of the fixed handle (11); the adjustment ring (22) is fixedly sleeved on the other end of the storage tube (21); the extension tube (23) is slidably inserted into the other end of the storage tube (21); the retractable rod (24) is stored in the storage tube (21) and the extension tube (23); one end of the retractable rod (24) is connected to the starting handle (12); and the other end of the retractable rod (24) is connected to the scissors assembly (30).

4. The device for pruning branches for forestry and fruit trees according to claim 3, characterized in that: The scissor assembly (30) comprises a fixing member (31) and an L-shaped scissor member (32); one end of the fixing member (31) is fixedly inserted into the other end of the extension tube (23); the scissor member (32) is hingedly connected to the middle of the fixing member (31); one end of the scissor member (32) is connected to the other end of the retractable rod (24); and the fixing member (31) and the scissor member (32) are staggered.

5. The device for pruning branches for forestry and fruit trees according to claim 4, characterized in that: The fixing member (31) comprises a stop plate (33) and two second magnets (34); one end of the stop plate (33) is fixedly inserted into the other end of the extension tube (23); and the two second magnets (34) are respectively mounted on two side walls of the other end of the stop plate (33).

6. The device for pruning branches for forestry and fruit trees according to claim 5, characterized in that: The other end of the stop plate (33) is provided with a hinge groove (330), and the other end of the stop plate (33) is mounted on a positioning arc rod (331), one end of the positioning arc rod (331) is inserted into the hinge groove (330), and one end of the positioning arc rod (331) is hingedly connected to the side wall of the hinge groove (330).

7. The branch pruning device for forestry and fruit trees according to claim 6, characterized in that: The scissors member (32) comprises a flip section (320) and a knife section (321); the flip section (320) is connected to the other end of the contraction rod (24); one end of the knife section (321) is vertically connected to one end of the flip section (320); and the connection between the knife section (321) and the flip section (320) is hingedly connected to the middle of the abutment plate (33).

8. The branch pruning device for forestry and fruit trees according to claim 7, characterized in that: An air outlet groove (511) is provided on a side wall of the sliding groove (510) adjacent to the blade segment (321), and the air outlet groove (511) penetrates the upper and lower side wall surfaces of the supporting shell (51).

9. The device for pruning branches for forestry and fruit trees according to claim 8, characterized in that: The protective cleaning member (70) comprises a cleaning brush (700) and a first magnet (701); a side wall at one end of the cleaning brush (700) is fixedly connected to the other end of the sliding plate (53); the first magnet (701) is mounted on the other side wall of one end of the cleaning brush (700); and an inclined surface (702) is provided at the other end of the cleaning brush (700).

10. The branch pruning device for forestry and fruit trees according to claim 9, characterized in that: The airbag component (71) comprises a protective plate (710) and an airbag (711). The protective plate (710) is slidably mounted on the outside of the first magnet (701). The airbag (711) is received inside the protective plate (710). A passage groove (712) is provided on one side of the protective plate (710) adjacent to the blade segment (321). The passage groove (712) penetrates the side wall surface of the protective plate (710) adjacent to the blade segment (321). A plurality of air outlet holes (713) are provided on one side of the airbag (711) adjacent to the blade segment (321). The plurality of air outlet holes (713) are inclined toward the other end of the cleaning brush (700). A plurality of contraction springs are installed inside the airbag (711). The first magnet (701) and the second magnet (34) have opposite magnetic properties.

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