A forestry tree branch pulling device

Abstract

The present invention discloses a forestry tree branch pulling device, including a mounting frame structure, the mounting frame structure including two hoops, first square rods are symmetrically fixed on both sides of the hoops, first square tubes are slidably sleeved on the two first square rods, second square tubes are fixed on the opposite sides of the two first square tubes, and first locking bolts are screwed on the first square tubes. Through the setting of the branch protection structure, when the tree branch is pulled down, the first roller will push the root of the tree branch in the opposite direction to the tree main pole, thereby effectively preventing the root of the tree branch from splitting from the tree main pole, and the force of the first roller pulling the root of the tree branch can be adjusted by twisting the locking nut. Through the setting of the branch pulling structure, the tree branch can be pressed down by two second rollers, and through the setting of the wire tensioning structure, the force of the wire pulling down the branch pulling structure can be adjusted by controlling the contraction of the spring, thereby effectively preventing the tree branch from being broken and damaged due to the uncontrollable pulling force.

Description

Technical Field

[0001] The invention relates to the field of gardening, and in particular to a branch pulling device for forestry trees. Background Art

[0002] Branch pulling is the most commonly used shaping technique for tree and fruit tree cultivation. It can artificially control the structure of fruit trees, inhibit the vigorous vegetative growth of fruit trees, promote the transformation of vegetative growth to reproductive growth, and facilitate the formation of flower buds and early flowering and fruiting. At the same time, branch pulling can effectively improve the lighting conditions of the tree, increase the light-receiving area of ​​the fruit tree, and improve the light energy utilization rate of the fruit tree, providing a guarantee for high-quality and high-yield fruit.

[0003] In the process of pulling branches of fruit trees, in order to ensure the effect of pulling branches, it is necessary to apply a downward pulling force to the end of the pulling rope away from the branches of the fruit trees. Some fruit farmers directly tie the end of the pulling rope to the trunk of the fruit tree, and some fruit farmers use ground nails to fix the end to the ground. Although this can solve the problem of pulling branches of fruit trees, it still has the following disadvantages:

[0004] 1. The pulling rope is directly tied to the trunk of the fruit tree. When tying the rope, the branches of the fruit tree need to be constantly separated, which is time-consuming, labor-intensive and inconvenient to use. In addition, since the trunk needs to bear the reaction force of the fruit tree branches during this process, if the pulled fruit tree branches are thick, it is easy to cause damage to the trunk and affect the development of the fruit tree. Although the method of fixing the pulling rope with ground nails can avoid damage to the trunk, it is difficult to remove the ground nails after they are fixed to the ground, and it is not convenient to adjust the pulling position according to the actual situation, and the adaptability is low.

[0005] 2. The existing branch pulling device lacks protection for the connection between the roots of fruit tree branches and the main trunk of the fruit tree. The connection between the roots of fruit tree branches and the main trunk of the fruit tree is often the weakest point. During the branch pulling process, the fruit tree branches bend downward under the tension of the branch pulling rope. In this process, it was found that due to the difficulty in controlling the force during the branch pulling process, the roots of some fruit tree branches are easily split from the main trunk of the fruit tree under the action of the tension, resulting in necrosis of the fruit tree branches.

[0006] Therefore, the present invention proposes a forestry tree branch pulling device to solve the above-mentioned problems. Summary of the invention

[0007] In order to solve the above-mentioned problems, the present invention provides a forestry tree branch pulling device.

[0008] The present invention is achieved through the following technical solutions:

[0009] A forestry tree branch pulling device comprises a mounting frame structure, wherein the mounting frame structure comprises two hoops, wherein a first square rod is symmetrically fixed on both sides of the hoops, a first square tube is slidably sleeved on the two first square rods, a second square tube is fixed on the opposite sides of the two first square tubes, a first locking bolt is screwed on the first square tube, the same second square rod passes through the two second square tubes on the same side of the two hoops, a first stopper is fixed on the top of the second square rod, a plurality of first through holes are evenly opened on the side wall at the bottom end of the second square rod, a first latch is inserted into one of the first through holes, a third square tube and a fourth square tube are slidably sleeved on the two second square rods, a second locking bolt is screwed on the side wall of the third square tube, a third locking bolt is screwed on the side wall of the fourth square tube, a winding structure is respectively installed on the opposite sides of the two fourth square tubes, and a branch protection structure is installed on the two third square tubes.

[0010] Preferably, the winding structure includes a winding disk, on which a pull wire is wound, one end of the pull wire is fixedly connected to the winding disk, a hook is fixed to the other end of the pull wire, a first center axis is passed through the axis of the winding disk, the winding disk is rotatably connected to the first center axis, one end of the first center axis is fixedly connected to a fourth square tube, a fixing plate is fixed to the other end of the first center axis, a second pin is passed through the fixing plate, the second pin is slidably connected to the fixing plate at the contact point, a number of positioning holes are evenly opened on the side wall of the winding disk with its axis as the center, the second pin passes through one of the positioning holes, and a crank is fixed to the edge of the side wall of the winding disk.

[0011] Preferably, the branch protection structure includes a first roller, mounting plates are respectively provided on both sides of the first roller, both ends of the rotating shaft of the first roller are rotatably connected to the two mounting plates through bearings, threaded rods are respectively fixed to the tops of the two mounting plates, locking nuts are respectively screwed on the two threaded rods, a first guide cylinder is slidably sleeved on the threaded rod between the locking nut and the mounting plate, first rotating shafts are respectively fixed to the opposite side walls of the two first guide cylinders, opposite ends of the two first rotating shafts are respectively rotatably connected to two third-party cylinders through bearings, and wire tensioning structures are respectively installed at the bottom ends of the two mounting plates.

[0012] Preferably, the wire tensioning structure includes a third shaped rod, a fifth square tube is slidably sleeved on the third shaped rod, a third pin is penetrated through the fifth square tube, and the third pin is slidably connected with the fifth square tube at the contact point, the third shaped rod is evenly provided with a plurality of second through holes, the third pin passes through one of the second through holes, a T-shaped slide groove is provided on the side wall of the fifth square tube, a T-shaped slider is slidably provided in the T-shaped slide groove, the side end of the T-shaped slider extends out of the T-shaped slide groove and is fixed with a second central axis, a pull rod is fixed to the side end of the second central axis, a baffle is fixed at the bottom end of the side wall of the fifth square tube, the bottom end of the pull rod penetrates the baffle and is fixed with a second stop block, the pull rod is slidably connected with the baffle, a spring is provided between the baffle and the second stop block, the spring is sleeved on the pull rod, a guide pulley is provided between the pull rod and the T-shaped slider, and the second central axis passes through the axis of the guide pulley and is rotatably connected with it.

[0013] Preferably, a pulling branch structure is installed on the two mounting plates, and the pulling branch structure includes two arc-shaped brackets, and two second rollers are symmetrically arranged between the two arc-shaped brackets, and the two ends of the rotating shaft of the second roller are rotationally connected to the two arc-shaped brackets through bearings, and connecting rods are respectively fixed at the center of the inner arc surfaces of the two arc-shaped brackets, and adjusting rods are respectively hinged at the bottom ends of the two connecting rods through pins, and pull rings are respectively fixed to the top ends of the two adjusting rods, and second guide cylinders are respectively slidably sleeved on the two adjusting rods, and second rotating shafts are respectively fixed on the opposite side walls of the two second guide cylinders, and the opposite ends of the two second rotating shafts are respectively rotationally connected to the two mounting plates through bearings, and fourth locking bolts are respectively screwed on the opposite side walls of the two second guide cylinders.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: through the setting of the branch protection structure, when the tree branch is pulled down, the first roller will push the root of the tree branch in the opposite direction to the main trunk of the tree, thereby effectively preventing the root of the tree branch from being split from the main trunk of the tree, and the force of the first roller pulling the root of the tree branch can be adjusted by twisting the locking nut. Through the setting of the branch pulling structure, the tree branch can be pressed down by the two second rollers. Through the setting of the pull wire tensioning structure, the force of the pull wire pulling the branch pulling structure can be adjusted by controlling the contraction of the spring, thereby effectively preventing the tree branch from being broken and damaged due to the uncontrollable pulling force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of the structure of the present invention;

[0016] Figure 2 The structure of the present invention Figure 1 Side view of

[0017] Figure 3 The structure of the present invention Figure 1An enlarged schematic diagram of the winding structure 14;

[0018] Figure 4 The structure of the present invention Figure 1 An enlarged schematic diagram of the middle clamp 2;

[0019] Figure 5 The structure of the present invention Figure 1 An enlarged schematic diagram of the third rectangular rod 37;

[0020] Figure 6 The structure of the present invention Figure 1 An enlarged schematic diagram of the fifth square tube 38;

[0021] Figure 7 The structure of the present invention Figure 1 A cross-sectional view of the fifth square tube 38;

[0022] Figure 8 It is a working schematic diagram of the structure of the present invention.

[0023] In the figure: mounting frame structure 1, hoop 2, first square rod 3, first square tube 4, second square tube 5, second square rod 6, first locking bolt 7, first through hole 8, first latch 9, third square tube 10, fourth square tube 11, second locking bolt 12, third locking bolt 13, winding structure 14, winding disk 15, first central axis 16, fixing plate 17, second latch 18, positioning hole 19, crank 20, branch protection structure 21, first roller 22, mounting plate 23, threaded rod 24, locking nut 25, first guide tube 26, first rotating shaft 27, pulling branch structure 28, arc bracket 29, second roller 30, connecting rod 31, adjusting rod 32, pull ring 33, second guide cylinder 34, fourth locking bolt 35, second rotating shaft 36, third square rod 37, fifth square cylinder 38, second through hole 39, third latch 40, T-shaped slide groove 41, T-shaped slider 42, second central axis 43, pull rod 44, baffle 45, second stop block 46, spring 47, first stop block 48, pull wire 49, hook 50, pull wire tensioning structure 51, guide pulley 52. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, a forestry tree branch pulling device comprises a mounting frame structure 1, wherein the mounting frame structure 1 comprises two hoops 2, first square rods 3 are symmetrically fixed on both sides of the hoops 2, first square tubes 4 are slidably sleeved on the two first square rods 3, second square tubes 5 are fixed on the opposite sides of the two first square tubes 4, first locking bolts 7 are screwed on the first square tubes 4, the same second square rod 6 is passed through the two second square tubes 5 on the same side of the two hoops 2, and a first stopper is fixed on the top of the second square rod 6 48. A plurality of first through holes 8 are evenly formed on the side wall at the bottom end of the second square rod 6, wherein a first latch 9 is inserted into one of the first through holes 8, a third square tube 10 and a fourth square tube 11 are slidably sleeved on the two second square rods 6, a second locking bolt 12 is screwed on the side wall of the third square tube 10, a third locking bolt 13 is screwed on the side wall of the fourth square tube 11, winding structures 14 are respectively installed on the opposite sides of the two fourth square tubes 11, and branch protection structures 21 are installed on the two third square tubes 10.

[0026] Preferably, the winding structure 14 includes a winding disk 15, on which a pull wire 49 is wound, one end of the pull wire 49 is fixedly connected to the winding disk 15, and a hook 50 is fixed to the other end of the pull wire 49, a first central axis 16 is passed through the axis of the winding disk 15, the winding disk 15 is rotatably connected to the first central axis 16, one end of the first central axis 16 is fixedly connected to the fourth square tube 11, and a fixing plate 17 is fixed to the other end of the first central axis 16, a second latch 18 is passed through the fixing plate 17, and the second latch 18 is slidably connected to the fixing plate 17 at the contact point, a plurality of positioning holes 19 are evenly opened on the side wall of the winding disk 15 with its axis as the center, and the second latch 18 passes through one of the positioning holes 19, and a crank 20 is fixed to the edge of the side wall of the winding disk 15.

[0027] Preferably, the branch protection structure 21 includes a first roller 22, mounting plates 23 are respectively provided on both sides of the first roller 22, both ends of the rotating shaft of the first roller 22 are rotatably connected to the two mounting plates 23 through bearings, threaded rods 24 are respectively fixed to the tops of the two mounting plates 23, locking nuts 25 are respectively screwed on the two threaded rods 24, a first guide cylinder 26 is slidably sleeved on the threaded rod 24 between the locking nuts 25 and the mounting plates 23, first rotating shafts 27 are respectively fixed to the opposite side walls of the two first guide cylinders 26, the opposite ends of the two first rotating shafts 27 are respectively rotatably connected to the two third-party cylinders 10 through bearings, and wire tensioning structures 51 are respectively installed at the bottom ends of the two mounting plates 23.

[0028] Preferably, the wire tensioning structure 51 includes a third shaped rod 37, a fifth square tube 38 is slidably sleeved on the third shaped rod 37, a third latch 40 is penetrated through the fifth square tube 38, the third latch 40 is slidably connected with the fifth square tube 38 at the contact point, a plurality of second through holes 39 are evenly opened on the third shaped rod 37, the third latch 40 passes through one of the second through holes 39, a T-shaped slide groove 41 is opened on the side wall of the fifth square tube 38, a T-shaped slider 42 is slidably provided in the T-shaped slide groove 41, and the side end of the T-shaped slider 42 extends A second central axis 43 is fixed on a T-shaped slide groove 41, a pull rod 44 is fixed on the side end of the second central axis 43, a baffle 45 is fixed on the bottom end of the side wall of the fifth square tube 38, the bottom end of the pull rod 44 penetrates the baffle 45 and is fixed with a second stop block 46, the pull rod 44 is slidably connected to the baffle 45, a spring 47 is provided between the baffle 45 and the second stop block 46, the spring 47 is sleeved on the pull rod 44, a guide pulley 52 is provided between the pull rod 44 and the T-shaped slider 42, and the second central axis 43 passes through the axis of the guide pulley 52 and is rotationally connected thereto.

[0029] Preferably, a pulling structure 28 is installed on the two mounting plates 23, and the pulling structure 28 includes two arc-shaped brackets 29, and two second rollers 30 are symmetrically arranged between the two arc-shaped brackets 29, and the two ends of the rotating shaft of the second roller 30 are rotationally connected to the two arc-shaped brackets 29 through bearings, and connecting rods 31 are fixed at the center of the inner arc surfaces of the two arc-shaped brackets 29, and adjusting rods 32 are hinged at the bottom ends of the two connecting rods 31 through pins, and pull rings 33 are fixed at the top ends of the two adjusting rods 32, and second guide cylinders 34 are slidingly sleeved on the two adjusting rods 32, and second rotating shafts 36 are fixed on the opposite side walls of the two second guide cylinders 34, and the opposite ends of the two second rotating shafts 36 are rotationally connected to the two mounting plates 23 through bearings, and fourth locking bolts 35 are screwed on the opposite side walls of the two second guide cylinders 34.

[0030] Working principle: When the present invention is used, before installing the device on a tree, first unscrew the locking nut 25 on the threaded rod 24, and pull the two threaded rods 24 out of the two first guide cylinders 26, so that the branch protection structure 21 will be separated from the mounting frame structure 1, and then loosen the fourth locking bolt 35, pull the two adjustment rods 32 out of the two second guide cylinders 34, so that the branch pulling structure 28 will be separated from the branch protection structure 21. Then install the mounting frame structure 1 on the tree, and the process is as follows; first, fix the two hoops 2 to the main pole of the tree respectively, one of the hoops 2 is at the upper end of the root of the tree branch, and the other hoops 2 is at the lower end of the root of the tree branch, and then loosen the first locking bolt 7 and adjust the second square tube 5 by sliding the first square tube 4, so that the second square rods 6 on both sides of the hoops 2 are parallel. Since the main pole of the tree becomes thinner from bottom to top, when the two hoops 2 are fixed to different positions of the main pole of the tree, the second square rods 6 on both sides will not be parallel, so it is necessary to loosen the first locking bolt 7 and slide the first square tube 4 to adjust the second square tube 5, so as to make the two second square rods 6 parallel again. At this time, the branch protection structure 21 is reinstalled from the bottom of the tree branch to the mounting frame structure 1, and the installation process is as follows; the two threaded rods 24 are passed through the two first guide cylinders 26, and the locking nuts 25 are screwed back onto the threaded rods 24. When the locking nuts 25 are tightened, the threaded rods 24 are pulled, and the threaded rods 24 simultaneously pull the first rollers 22, so that the first rollers 22 are against the bottom surface of the roots of the tree branches. In this way, when the tree branches are pulled down, the first rollers 22 will push the roots of the tree branches in the opposite direction toward the main trunk of the tree, thereby effectively preventing the roots of the tree branches from being split from the main trunk of the tree. The force with which the first rollers 22 pull the roots of the tree branches can be adjusted by screwing the locking nuts 25.After the branch protection structure 21 is installed, the branch pulling structure 28 is reinstalled on the branch protection structure 21 from above the tree branches. The installation process is as follows: pass the two adjusting rods 32 through the two second guide cylinders 34, and tighten the fourth locking bolts 35, so that the fourth locking bolts 35 will fix the adjusting rods 32 to the second guide cylinders 34, loosen the fourth locking bolts 35, and slide the adjusting rod 32 in the second guide cylinder 34 to adjust the distance between the second roller 30 and the second guide cylinder 34, so that the second roller 30 can be pressed on different positions of the tree branches as needed. After the branch pulling structure 28 is installed, unplug the second pin 18 on the winding structure 14, and then rotate the winding disk 15 by the crank 20 to release the pull line 49 wound on the winding disk 15, and then The hook 50 on the head end of the pull wire 49 is passed around the bottom of the guide pulley 52 on the pull wire tensioning structure 51, and then the hook 50 is hung on the pull ring 33 of the branch pulling structure 28. Then, the winding disk 15 is rotated by the crank 20 to straighten the pull wire 49, and the second pin 18 is reinserted to fix the winding disk 15. Subsequently, the third pin 40 on the pull wire tensioning structure 51 is pulled out, and the fifth square tube 38 is pulled down. At this time, the guide pulley 52 pulls down the pull wire 49, and the spring 47 contracts. The reverse force generated by the contraction of the spring 47 acts on the guide pulley 52. ​​The guide pulley 52 continuously pulls the pull wire 49 through the spring 47. When the pull wire 49 is pushed by the guide pulley 52, the hook 50 pulls down the branch pulling structure 28 through the pull ring 33, so that the second roller 30 will press down the tree branches to pull the branches. By disposing the second roller 30 and the fourth square tube 11 , the positions of the branch protection structure 21 and the winding structure 14 on the second square rod 6 can be conveniently adjusted.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A forestry tree branch pulling device, comprising a mounting frame structure (1), characterized in that: The mounting frame structure (1) comprises two hoops (2), first square rods (3) are symmetrically fixed on both sides of the hoops (2), first square tubes (4) are slidably sleeved on the two first square rods (3), second square tubes (5) are fixed on opposite sides of the two first square tubes (4), first locking bolts (7) are screwed on the first square tubes (4), the same second square rod (6) passes through the two second square tubes (5) on the same side of the two hoops (2), a first stopper (48) is fixed on the top of the second square rod (6), a plurality of first through holes (8) are evenly opened on the side wall at the bottom end of the second square rod (6), a first latch (9) is inserted into one of the first through holes (8), A third square tube (10) and a fourth square tube (11) are slidably sleeved on the two second square rods (6); a second locking bolt (12) is screwed on the side wall of the third square tube (10); a third locking bolt (13) is screwed on the side wall of the fourth square tube (11); winding structures (14) are respectively installed on the opposite sides of the two fourth square tubes (11); a branch protection structure (21) is installed on the two third square tubes (10); the winding structure (14) comprises a winding disk (15); a pulling wire (49) is wound on the winding disk (15); one end of the pulling wire (49) is fixedly connected to the winding disk (15); the other end of the pulling wire (49) is fixedly connected to the winding disk (15); a hook (50) is fixedly connected to the winding disk (15); and the winding disk (15) passes through the axis thereof. A first central axis (16) is provided, the winding disk (15) is rotatably connected to the first central axis (16), one end of the first central axis (16) is fixedly connected to the fourth square tube (11), the other end of the first central axis (16) is fixed with a fixing plate (17), a second latch (18) is passed through the fixing plate (17), the second latch (18) is slidably connected with the fixing plate (17) at the contact point, a plurality of positioning holes (19) are evenly opened on the side wall of the winding disk (15) with its axis as the center, the second latch (18) passes through one of the positioning holes (19), a crank (20) is fixed at the edge of the side wall of the winding disk (15), the branch protection structure (21) comprises a first roller (22), the first roller (22) mounting plates (23) are respectively provided on both sides, the two ends of the rotating shaft of the first roller (22) are rotatably connected to the two mounting plates (23) through bearings, the top ends of the two mounting plates (23) are respectively fixed with threaded rods (24), the two threaded rods (24) are respectively threaded with locking nuts (25), the threaded rods (24) between the locking nuts (25) and the mounting plates (23) are slidably sleeved with first guide cylinders (26), the first rotating shafts (27) are respectively fixed on the opposite side walls of the two first guide cylinders (26), the opposite ends of the two first rotating shafts (27) are respectively rotatably connected to the two third-party cylindrical cylinders (10) through bearings, and the bottom ends of the two mounting plates (23) are respectively installed with wire tensioning structures (51),The wire tensioning structure (51) comprises a third shaped rod (37), a fourth square tube (38) is slidably sleeved on the third shaped rod (37), a third latch (40) is passed through the fourth square tube (38), the third latch (40) is slidably connected with the fourth square tube (38) at the contact point, a plurality of second through holes (39) are evenly arranged on the third shaped rod (37), the third latch (40) passes through one of the second through holes (39), a T-shaped groove (41) is arranged on the side wall of the fourth square tube (38), and a third latch (40) is slidably inserted into the T-shaped groove (41). A T-shaped slider (42) is provided, the side end of the T-shaped slider (42) extends out of the T-shaped slide groove (41) and is fixed with a second central axis (43), the side end of the second central axis (43) is fixed with a pull rod (44), a baffle (45) is fixed at the bottom end of the side wall of the fourth square tube (38), the bottom end of the pull rod (44) penetrates the baffle (45) and is fixed with a second stopper (46), the pull rod (44) is slidably connected to the baffle (45), a spring (47) is provided between the baffle (45) and the second stopper (46), and the spring (47) is sleeved on the pull rod (44). A guide pulley (52) is provided between the pull rod (44) and the T-shaped slider (42), the second central axis (43) passes through the axis of the guide pulley (52) and is rotatably connected thereto, a pulling branch structure (28) is installed on the two mounting plates (23), the pulling branch structure (28) includes two arc-shaped brackets (29), two second rollers (30) are symmetrically provided between the two arc-shaped brackets (29), the two ends of the rotating shaft of the second roller (30) are rotatably connected to the two arc-shaped brackets (29) through bearings, and the centers of the inner arc surfaces of the two arc-shaped brackets (29) are respectively fixed. A connecting rod (31) is provided, and the bottom ends of the two connecting rods (31) are respectively hinged with an adjusting rod (32) through a pin shaft, and the top ends of the two adjusting rods (32) are respectively fixed with a pull ring (33), and the two adjusting rods (32) are respectively slidably sleeved with a second guide cylinder (34), and the opposite side walls of the two second guide cylinders (34) are respectively fixed with a second rotating shaft (36), and the opposite ends of the two second rotating shafts (36) are respectively rotatably connected to the two mounting plates (23) through bearings, and the opposite side walls of the two second guide cylinders (34) are respectively screwed with a third locking bolt (35).

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