Forest tree pruning device

Abstract

The invention discloses a forest pruning device, which relates to the field of pruning equipment and comprises a mounting plate, a pruning mechanism, a sawing mechanism and a support rod. The number of the mounting plates is three, a first gap and a second gap are formed among the three mounting plates, a trimming notch is formed in one side of the top of each mounting plate, and connecting pieces are arranged at the bottoms of the three mounting plates; the trimming mechanism is arranged in the first gap and comprises a fixed blade, a movable blade and a first driving part, and the first driving part is connected with the movable blade; the sawing mechanism is arranged in the second gap and comprises a saw blade and a second driving part, a mounting shaft is arranged at the second gap on the top side of the trimming notch, a mounting hole is formed in one end of the saw blade, the saw blade is connected with the mounting shaft through the mounting hole, and the second driving part is connected with the saw blade; the supporting rod is arranged at the bottom end of the connecting piece. According to the forest pruning device, on the premise that shearing is not affected, the saw blade can be folded and unfolded, and the trouble of disassembling the saw blade is omitted.

Description

Technical Field

[0001] The invention relates to the field of pruning equipment, in particular to a forest pruning device. Background Art

[0002] When pruning trees, thinner branches are generally trimmed by shearing, while thicker branches are generally trimmed by sawing. Existing pruning equipment generally includes the above two functions, but the saw blades of this type of equipment are easy to interfere with other branches when cutting thin branches, affecting the cutting operation of the staff. When the branches of the trees are dense, the saw blades need to be removed and then installed when pruning is performed and the saw blades are needed again. This process is troublesome. Summary of the invention

[0003] In view of the above problems, the present invention provides a tree pruning device, which can retract and extend the saw blade without affecting shearing, thus eliminating the trouble of disassembling the saw blade.

[0004] The technical solution of the present invention is as follows:

[0005] A tree pruning device, comprising:

[0006] The mounting plates include three plates arranged in parallel, a first gap and a second gap are respectively provided between the three mounting plates, a trimming notch is provided on one side of the top of the mounting plates, and connecting pieces are provided on the bottoms of the three mounting plates;

[0007] A trimming mechanism is disposed in the first gap, comprising a fixed blade, a movable blade and a first driving member, wherein the fixed blade is disposed on the top side of the trimming notch, the movable blade is disposed on the bottom side of the trimming notch, and the first driving member is connected to the movable blade;

[0008] A sawing mechanism is arranged in the second gap, comprising a saw blade and a second driving member, a mounting shaft is arranged at the second gap on the top side of the trimming notch, a mounting hole is arranged at one end of the saw blade, the saw blade is connected to the mounting shaft through the mounting hole, and the second driving member is connected to the saw blade;

[0009] The support rod is arranged at the bottom end of the connecting piece.

[0010] In a further technical solution, the first driving member includes a rotating shaft, a rotating handle, a spring and a first pull rope, the two ends of the rotating shaft are respectively connected to the mounting plates, one end of the rotating handle is connected to the movable blade and is provided with a rotating hole, the rotating handle is sleeved on the outside of the rotating shaft through the rotating hole, the rotating handle and the support rod are set at an obtuse angle, the first pull rope is arranged at the other end of the rotating handle, and the two ends of the spring are respectively connected to the movable blade and the bottom of the mounting plate.

[0011] In a further technical solution, a first mounting piece is provided at one end of the rotating handle connected to the first pull rope, a first pulley and a second pulley are respectively provided in the first mounting piece, a second mounting piece is provided on the connecting piece, a third pulley and a fourth pulley are respectively provided in the second mounting piece, one end of the first pull rope is connected to the rotating handle and then bypasses the top side of the first pulley, bypasses the bottom side of the third pulley, then bypasses the top side of the second pulley, and finally passes through the side of the fourth pulley close to the connecting piece and extends to the bottom of the fourth pulley.

[0012] In a further technical solution, the second driving member includes a gear, a third pull rope, a fourth pull rope, a transmission wheel and a wheel axle for installing the transmission wheel. The gear is arranged on one side of the saw blade and is sleeved on the mounting shaft. The two ends of the wheel axle are respectively connected to the mounting plates. The outer side of the transmission wheel is provided with gear teeth that mesh with the gear. Rope connecting members are respectively provided on the opposite sides of one side of the transmission wheel. The third pull rope and the fourth pull rope are respectively connected to the two rope connecting members.

[0013] In a further technical solution, a support member is provided on the top of the two mounting plates corresponding to the second gap, and a groove which transitionally matches with the back side of the saw blade is provided in the middle of the support member.

[0014] In a further technical solution, the cutting edge of the movable blade is arranged parallel to the cutting edge of the fixed blade, a strip hole perpendicular to the cutting edge of the movable blade is provided in the middle of the movable blade, two blade mounting holes are provided on the mounting plate located in the middle, the blade mounting holes are aligned with the strip holes, and the blade mounting holes and the strip holes are penetrated by guide bolts connecting the two; one side of the movable blade connected to the turning handle is a straight edge parallel to the strip hole, a first meshing tooth is provided on the straight edge, the end of the turning handle connected to the movable blade is arc-shaped, and a second meshing tooth meshing with the first meshing tooth is provided, and the spring is arranged on the other side of the movable blade parallel to the strip hole.

[0015] In a further technical solution, the support rod includes a folding section and telescopic sections arranged at both ends of the folding section, the folding section includes two hinged folding rods, the telescopic section includes two telescopic rods, the folding rod is sleeved on the outside of the telescopic rod, a plurality of locking holes are arranged at intervals in the length direction of the telescopic rod, a locking buckle is provided on the folding rod, and a fixing part is provided at the hinge of the folding rod.

[0016] In a further technical solution, the fixing part includes a first snap ring, a second snap ring and a sleeve, the first snap ring and the second snap ring are respectively arranged on two folding rods, the first snap ring is arranged away from the hinge, and the second snap ring is arranged close to the hinge, the diameter of the sleeve is smaller than the first snap ring and the second snap ring, and the sleeve is sleeved on the folding rod between the first snap ring and the second snap ring, and the length of the sleeve is smaller than the distance from the first snap ring to the hinge.

[0017] In a further technical solution, a first handle and a second handle are respectively provided at the ends of the second pull rope and the third pull rope, and a hook that can be connected to a lock hole is respectively provided on the first handle and the second handle.

[0018] In a further technical solution, a third handle is provided at the end of the first pull rope.

[0019] The beneficial effects of the present invention are:

[0020] 1. The first gap and the second gap between the three mounting plates are respectively installed with a pruning mechanism and a sawing mechanism. In the pruning mechanism, the first driving member can drive the movable blade to move relative to the fixed blade to perform a shearing operation on thin branches. In the sawing mechanism, the second driving member can drive one end of the saw blade to rotate around the mounting axis. Before using the saw blade, the saw blade can be retracted into the second gap to avoid interference with other branches during the pruning operation. When in use, the second driving member can be used to rotate the other end of the saw blade out of the second gap to perform a sawing operation on thick branches, thereby reducing the trouble of disassembling and assembling the saw blade;

[0021] 2. The first driving member further includes a first pulley, a second pulley, a third pulley and a fourth pulley, and the first pull rope passes over the above pulleys to pull the rotating handle, which is more labor-saving;

[0022] 3. The third and fourth pull ropes are used to pull the two sides of the transmission wheel respectively, so that the transmission wheel can rotate forward and backward respectively. The transmission wheel can mesh with the gear on the saw blade to realize the expansion and retraction of the saw blade;

[0023] 4. The moving track of the movable blade is a straight line, and the cutting edge is parallel to the cutting edge of the fixed blade, so the shearing effect is good;

[0024] 5. The support rod can be retracted and folded for easy storage, and one end of the folded support rod can be against the handle to prevent the handle from rotating when not working. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a tree pruning device according to an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of a tree pruning device according to an embodiment of the present invention except for the support rod part;

[0027] Figure 3 is a schematic structural diagram of a trimming mechanism for a first gap between mounting plates according to an embodiment of the present invention;

[0028] Figure 4 is a schematic structural diagram of the sawing mechanism for the second gap between the mounting plates according to an embodiment of the present invention;

[0029] Figure 5 is a schematic structural diagram of the first mounting member according to an embodiment of the present invention;

[0030] Figure 6 is a schematic top view of the second mounting member according to an embodiment of the present invention;

[0031] Figure 7 is a schematic structural diagram of a support member according to an embodiment of the present invention;

[0032] Figure 8 is a schematic structural diagram of a support rod according to an embodiment of the present invention;

[0033] Fig. 9 It is a cross-sectional schematic diagram of the connection between the folding rod and the telescopic rod according to an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 10. Mounting plate; 11. Trimming notch; 20. Connector; 31. Fixed blade; 32. Movable blade; 321. Strip hole; 33. Rotating shaft; 34. Rotating handle; 35. Spring; 36. First pull rope; 37. Third handle; 41. Saw blade; 42. Mounting shaft; 43. Gear; 44. Second pull rope; 45. Third pull rope; 46. Transmission wheel; 47. Axle; 48. First handle; 49. Second handle; 50. Support member; 51. Groove; 60. First mounting member; 61. First pulley; 62. Second pulley; 70. Second mounting member; 71. Third pulley; 72. Fourth pulley; 73. Rope clamping column; 80. Support rod; 81. Folding rod; 811. Lock buckle; 82. Telescopic rod; 821. Lock hole; 83. Fixing member; 831. First clamping ring; 832. Second clamping ring; 833. Sleeve. DETAILED DESCRIPTION

[0036] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0037] Example:

[0038] like Figure 1-Figure 4 As shown, a tree pruning device includes a mounting plate 10, a pruning mechanism, a sawing mechanism and a support rod 80; the mounting plate 10 includes three plates arranged in parallel, a first gap and a second gap are respectively provided between the three mounting plates 10, a pruning notch 11 is provided on one side of the top of the mounting plate 10, and a connecting piece 20 is provided at the bottom of the three mounting plates 10. The connecting piece 20 can be a hollow round tube, which is convenient for being put on the top of the support rod 80, and a hole is opened at the overlapping part of the connecting piece 20 and the support rod 80, and connected with bolts.

[0039] The trimming mechanism is arranged in the first gap, including a fixed blade 31, a movable blade 32 and a first driving member. The fixed blade 31 is arranged on the top side of the trimming slot 11, and the movable blade 32 is arranged on the bottom side of the trimming slot 11. The first driving member includes a rotating shaft 33, a rotating handle 34, a spring 35 and a first pull rope 36. The rotating shaft 33 is vertically arranged between the two mounting plates 10. One end of the rotating handle 34 is provided with a rotating hole sleeved on the outside of the rotating shaft 33, and the end is connected to the movable blade 32. The rotating handle 34 and the support rod 80 can be arranged at an obtuse angle. The first pull rope 36 is arranged at the other end of the rotating handle 34. Hanging holes can be respectively arranged on the movable blade 32 and at the bottom of the mounting plate 10. Connecting hooks are arranged at both ends of the spring 35. The spring 35 is respectively connected to the movable blade 32 and the bottom of the mounting plate 10 through the connecting hooks.

[0040] The sawing mechanism is arranged in the second gap, including a saw blade 41 and a second driving member. A mounting shaft 42 is arranged at the second gap on the top side of the trimming notch 11. A mounting hole is arranged at one end of the saw blade 41. The saw blade 41 is connected to the mounting shaft 42 through the mounting hole. The second driving member includes a gear 43, a second pull rope 44, a third pull rope 45, a transmission wheel 46 and a wheel shaft 47 for installing the transmission wheel 46. The gear 43 can be welded on the mounting hole corresponding to the position of the mounting hole, and is sleeved on the mounting shaft 42 together with the mounting hole. The wheel shaft 47 is vertically arranged on the two The outer side of the transmission wheel 46 is provided with gear teeth that mesh with the gear 43. The diameter of the transmission wheel 46 is larger than the diameter of the gear 43, and it is ensured that the transmission wheel 46 rotates within an angle of 180° while the gear 43 rotates at least one circle. The opposite sides of one side of the transmission wheel 46 are provided with connecting ropes, and the second pull rope 44 and the third pull rope 45 are connected to the two connecting ropes respectively. The back side of the saw blade 41 can be provided with a groove 51 that matches the trimming notch 11 to avoid the trimming mechanism from interfering with the retracted saw blade 41 during trimming. In order to facilitate the traction of the first pull rope 36, the second pull rope 44 and the third pull rope 45, the ends of the above three are respectively provided with a first handle 48, a second handle 49 and a third handle 37.

[0041] The working principle of the above technical solution is as follows:

[0042] When using the device to trim thinner branches, the trimming notch 11 of the mounting plate 10 can be aligned with the corresponding branch so that the branch is between the fixed blade 31 and the movable blade 32. The first pull rope 36 is pulled to pull one end of the rotating handle 34 to rotate downward around the rotating shaft 33. The rotating handle 34 is connected to one end of the movable blade 32 to lift the movable blade 32 upward and stretch the spring 35 to achieve a shearing operation. After the first pull rope 36 is released, the spring 35 loses the external force and retracts, pulling the movable blade 32 to its original position, and the position of the rotating handle 34 is restored. When using the device to saw thicker branches, the saw blade 41 is initially located between the two mounting plates 10. The third pull rope 45 can be pulled to rotate the transmission wheel 46, and the transmission wheel 46 engages with the gear 43 to rotate to achieve the rotation of the saw blade 41, and the saw blade 41 is opened to the outside of the two mounting plates 10. When the third pull rope 45 is fixed, the sawing operation can be performed. After using the saw blade 41, the second pull rope 44 can be pulled to reverse the transmission wheel 46 to retract the saw blade 41.

[0043] In another embodiment, if Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a first mounting member 60 is provided at one end of the rotating handle 34 connected to the first pull rope 36, and two adjacent grooves are provided at the bottom of the first mounting member 60, in which a first pulley 61 and a second pulley 62 are arranged side by side, and a second mounting member 70 is provided on the connecting member 20, and the second mounting member 70 includes four connecting plates arranged at intervals, and a third pulley 71 and a fourth pulley 72 are respectively installed in two intervals between three adjacent connecting plates, and a rope clamping column 73 is provided between the remaining connecting plate and the adjacent connecting plate. After one end of the first pull rope 36 is connected to the rotating handle 34, it bypasses the top side of the first pulley 61, bypasses the bottom side of the third pulley 71, and then bypasses the top side of the second pulley 62, and finally passes through the side of the fourth pulley 72 close to the connecting member 20 and extends to the bottom of the fourth pulley 72. The four pulleys form a labor-saving pulley group. When the first pull rope 36 is pulled down, the four pulleys are easily linked to rotate and drive the handle 34 to rotate. At the same time, the second pull rope 44 and the third pull rope 45 can bypass the inner side of the rope clamping column 73, and the rope clamping column 73 can concentrate the second pull rope 44 and the third pull rope 45.

[0044] In another embodiment, if Figure 2 , Figure 4 and Figure 7 As shown, the tops of the two mounting plates 10 corresponding to the second gap are provided with support members 50, and the middle of the support members 50 is provided with a groove 51 that transitionally matches the back side of the saw blade 41. The support member 50 is used to support the back of the saw blade 41 to prevent the saw blade 41 from rotating to the back side when sawing branches.

[0045] In another embodiment, if Figure 3As shown, the cutting edge of the movable blade 32 is arranged parallel to the cutting edge of the fixed blade 31, and a strip hole 321 perpendicular to the cutting edge of the movable blade 32 is arranged in the middle of the movable blade 32, and two blade mounting holes are arranged on the mounting plate 10 in the middle, and the blade mounting holes are aligned with the strip hole 321, and the blade mounting holes and the strip hole 321 are penetrated by guide bolts connecting the two, and the strip hole 321 of the movable blade 32 cooperates with the guide bolt to guide the movable blade 32; the movable blade 32 can adopt a rectangular blade body as a whole, and the tip of the blade is in the trimming notch 11, which is not easy to hurt people; one side of the movable blade 32 connected to the rotating handle 34 is a straight edge parallel to the strip hole 321, and a first meshing tooth is arranged on the straight edge, and the end of the rotating handle 34 connected to the movable blade 32 is arc-shaped, and a second meshing tooth meshing with the first meshing tooth is arranged, and the spring 35 is arranged on the other side of the movable blade 32 parallel to the strip hole 321. When the rotating handle 34 rotates around the rotating shaft 33, the second meshing teeth can mesh with the first meshing teeth, thereby realizing the vertical shearing operation of the movable blade 32, and the shearing effect is good.

[0046] In another embodiment, if Figure 8-Figure 9 As shown, the support rod 80 includes a folding section and telescopic sections arranged at both ends of the folding section. The folding section includes two hinged folding rods 81, and the telescopic section includes two telescopic rods 82. The folding rod 81 is sleeved on the outside of the telescopic rod 82. A plurality of locking holes 821 are arranged at intervals in the length direction of the telescopic rod 82. The folding rod 81 is provided with a lock buckle 811, which can be buckled into the lock buckle 811 to fix the relative position of the folding rod 81 and the telescopic rod 82. A fixing piece 83 is provided at the hinge of the folding rod 81. The support rod 80 is retractable and foldable for easy storage, and one end of the folded support rod 80 can be against the rotating handle 34 to prevent the rotating handle 34 from rotating when not working.

[0047] The fixing member 83 includes a first snap ring 831, a second snap ring 832 and a sleeve 833. The first snap ring 831 and the second snap ring 832 are respectively arranged on the two folding rods 81. To prevent the sleeve 833 from sliding down and causing the two folding rods 81 to be relatively bent when in use, the first snap ring 831 is arranged away from the hinge, and the second snap ring 832 is arranged close to the hinge. The sleeve 833 has a smaller diameter than the first snap ring 831 and the second snap ring 832, and is sleeved on the folding rod 81 between the first snap ring 831 and the second snap ring 832. The length of the sleeve 833 is less than the distance from the first snap ring 831 to the hinge, and the sleeve 833 cannot slide down and leave the folding rod 81 at a higher position. When the folding rod 81 is straightened, the sleeve 833 can be moved to the hinge of the two folding rods 81. When folding, the sleeve 833 can be moved to the folding rod 81 with the first snap ring 831.

[0048] In another embodiment, the first handle 48 and the second handle 49 are respectively provided with hooks that can be connected to the lock hole 821. After the second pull rope 44 or the third pull rope 45 is pulled, the hook can be hung in the lock hole 821 to fix the second pull rope 44 or the third pull rope 45.

[0049] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations 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.

Claims

1. A tree pruning device, characterized in that: include: The mounting plates include three plates arranged in parallel, a first gap and a second gap are respectively provided between the three mounting plates, a trimming notch is provided on one side of the top of the mounting plates, and connecting pieces are provided on the bottoms of the three mounting plates; A trimming mechanism is disposed in the first gap, comprising a fixed blade, a movable blade and a first driving member, wherein the fixed blade is disposed on the top side of the trimming notch, the movable blade is disposed on the bottom side of the trimming notch, and the first driving member is connected to the movable blade; A sawing mechanism is arranged in the second gap, comprising a saw blade and a second driving member, a mounting shaft is arranged at the second gap on the top side of the trimming notch, a mounting hole is arranged at one end of the saw blade, the saw blade is connected to the mounting shaft through the mounting hole, and the second driving member is connected to the saw blade; The support rod is arranged at the bottom end of the connecting piece.

2. A tree pruning device according to claim 1, characterized in that: The first driving member includes a rotating shaft, a rotating handle, a spring and a first pull rope, the two ends of the rotating shaft are respectively connected to the mounting plates, one end of the rotating handle is connected to the movable blade and is provided with a rotating hole, the rotating handle is sleeved on the outside of the rotating shaft through the rotating hole, the rotating handle and the support rod are set at an obtuse angle, the first pull rope is set at the other end of the rotating handle, and the two ends of the spring are respectively connected to the movable blade and the bottom of the mounting plate.

3. A tree pruning device according to claim 2, characterized in that: A first mounting piece is provided at one end of the rotating handle connected to the first pull rope, a first pulley and a second pulley are respectively provided in the first mounting piece, a second mounting piece is provided on the connecting piece, a third pulley and a fourth pulley are respectively provided in the second mounting piece, one end of the first pull rope is connected to the rotating handle and then passes around the top side of the first pulley, then passes around the bottom side of the third pulley, then passes around the top side of the second pulley, and finally passes through the side of the fourth pulley close to the connecting piece and extends to the bottom of the fourth pulley.

4. A tree pruning device according to claim 1, characterized in that: The second driving member includes a gear, a second pull rope, a third pull rope, a transmission wheel and a wheel axle for installing the transmission wheel. The gear is arranged on one side of the saw blade and is sleeved on the mounting shaft. The two ends of the wheel axle are respectively connected to the mounting plates. The outer side of the transmission wheel is provided with gear teeth that mesh with the gear. Rope connecting members are respectively provided on the opposite sides of one side of the transmission wheel. The second pull rope and the third pull rope are respectively connected to the two rope connecting members.

5. A tree pruning device according to claim 1, characterized in that: A support member is provided on the top of the two mounting plates corresponding to the second gap, and a groove which transitionally matches with the back side of the saw blade is provided in the middle of the support member.

6. A tree pruning device according to claim 2, characterized in that: The cutting edge of the movable blade is arranged in parallel with the cutting edge of the fixed blade, a strip hole perpendicular to the cutting edge of the movable blade is arranged in the middle of the movable blade, two blade mounting holes are arranged on the mounting plate located in the middle, the blade mounting holes are aligned with the strip holes, and the blade mounting holes and the strip holes are penetrated by guide bolts connecting the two; one side of the movable blade connected to the turning handle is a straight edge parallel to the strip hole, and a first meshing tooth is arranged on the straight edge, the end of the turning handle connected to the movable blade is arc-shaped, and is provided with a second meshing tooth meshing with the first meshing tooth, and the spring is arranged on the other side of the movable blade parallel to the strip hole.

7. A tree pruning device according to claim 4, characterized in that: The support rod includes a folding section and telescopic sections arranged at both ends of the folding section, the folding section includes two hinged folding rods, the telescopic section includes two telescopic rods, the folding rod is sleeved on the outside of the telescopic rod, a plurality of locking holes are arranged at intervals in the length direction of the telescopic rod, the folding rod is provided with a lock buckle, and a fixing piece is provided at the hinge of the folding rod.

8. A tree pruning device according to claim 7, characterized in that: The fixing part includes a first snap ring, a second snap ring and a sleeve. The first snap ring and the second snap ring are respectively arranged on two folding rods. The first snap ring is arranged away from the hinge, and the second snap ring is arranged close to the hinge. The diameter of the sleeve is smaller than the first snap ring and the second snap ring, and the sleeve is sleeved on the folding rod between the first snap ring and the second snap ring. The length of the sleeve is smaller than the distance from the first snap ring to the hinge.

9. A tree pruning device according to claim 4, characterized in that: The ends of the second pull rope and the third pull rope are respectively provided with a first handle and a second handle, and the first handle and the second handle are respectively provided with a hook that can be connected to a lock hole.

10. The tree pruning device according to claim 3, characterized in that: A third handle is provided at the end of the first pull rope.

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