Pruning device

Abstract

The invention discloses a pruning device, and particularly relates to the technical field of green plant pruning, the pruning device comprises a holding rod, a cutting mechanism is arranged at one end of the holding rod, a storage battery is arranged at the other end of the holding rod, the cutting mechanism comprises a mounting box and a cutting assembly arranged at the end of the mounting box, and a three-phase motor is mounted in the mounting box; the three-phase motor is connected with the storage battery through a cable, the output shaft end of the three-phase motor is connected with a cam mechanism, a driven part of the cam mechanism is connected with a cutting assembly, and the cutting assembly comprises a main cutting rod. A user can hold the holding rod to swing the cutting mechanism at the end to act, the user can swing the cutting mechanism to move in a large range, operation is more flexible, the periphery of a green plant is pruned freely, and the pruning efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of green plant pruning, and in particular to a pruning shear. Background Art

[0002] In forestry greening, pruning is a common task used to keep plants growing well and looking neat and beautiful. The most widely used pruning tools include manual scissors, electric scissors, electric special scissors, etc. Electric special scissors are more and more widely used due to their high pruning efficiency.

[0003] The patent with the announcement number CN218998938U in China and the name of an electric hedge trimmer discloses a vehicle body, wheels are installed on the vehicle body, the wheels are connected to a driving motor, two left and right lifting platforms are symmetrically fixedly installed on the vehicle body, the lifting platforms are fixedly connected to the push-pull rods of the electric push rod, the lower end of the electric push rod is fixed on the vehicle body, a horizontal power mechanism is installed on the upper end of the lifting platform on the left side, the horizontal power mechanism is fixedly connected to the horizontal lower blade, a horizontal support rod is arranged below the horizontal lower blade, one end of the horizontal support rod is fixedly installed on the lifting platform on the left side, and a horizontal upper blade is slidably connected above the horizontal lower blade. The patent uses a vehicle body to drive the cutting blade to move to perform the operation of pruning green plants. During its use, its moving structure and cutting structure are numerous, and the blade needs to be angled during the pruning process, resulting in low pruning efficiency and is not suitable for green plant pruning work with a large workload. Summary of the invention

[0004] The object of the present invention is to provide a pruning shear to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A pruning shear comprises a grip rod, one end of which is provided with a cutting mechanism, and the other end of which is provided with a battery, the cutting mechanism comprises a mounting box and a cutting assembly arranged at the end of the mounting box, a three-phase motor is installed inside the mounting box, the three-phase motor is connected to the battery via a cable, a cam mechanism is connected to the output shaft end of the three-phase motor, one end of the cam mechanism is connected to the cutting assembly, the cutting assembly comprises a main cutting rod, one end of the main cutting rod is fixed to the end of the mounting box, and a movable auxiliary cutting rod is arranged below the main cutting rod.

[0007] Preferably, the cam mechanism includes a driving wheel fixed to the output shaft end of the three-phase motor, one side of the driving wheel is meshingly connected to a driven wheel, one side of the bottom of the driven wheel is rotatably connected to a first connecting rod, one end of the first connecting rod is rotatably connected to a second connecting rod, one end of the second connecting rod is connected to the end of a secondary cutting rod via a rotating shaft, and the end of the secondary cutting rod is inserted into the inside of the installation box and can make linear motion in the installation box.

[0008] Preferably, a sliding block is provided at the bottom of the main cutting rod, and a sliding groove corresponding to the sliding block is provided at the top of the auxiliary cutting rod.

[0009] Preferably, mounting ears are fixed to the outer wall of the grip and the outer shell of the battery, a shoulder strap is connected between the two mounting ears, a threaded tube is provided at the end of the battery, and the threaded tube is connected to the end of the grip by threaded engagement.

[0010] Preferably, a support plate is fixed to the outer wall of the grip rod, a second grip is fixed to one side wall of the support plate, and a first grip is fixed to one side of the outer wall of the grip rod close to the support plate.

[0011] Preferably, an axle seat is fixed to one end of the grip rod close to the mounting box, a support frame is connected to one side of the axle seat, the support frame is an arc plate, the inner wall of the support frame can be fitted with the outer wall of the grip rod, a motor is fixed to one side of the axle seat, a triangular prism shaft is provided at the output shaft end of the motor, the end of the triangular prism shaft passes through the axle seat and is connected to the support frame.

[0012] Preferably, a magnetic block is provided at one end of the support frame, an adsorption plate corresponding to the magnetic block is provided on the outer wall of the gripping rod, and a foot pad is also fixed to the end of the support frame.

[0013] Preferably, an auxiliary support assembly is also provided on one side of the grip bar, and the auxiliary support assembly includes a support bar and a belt arranged on one side of the grip bar, pin rings are provided on both ends of the support bar, a mounting pin is provided between the pin ring at one end of the support bar and the grip bar, and a latch is provided on the pin ring at the other end, a slide rail is provided on the outer wall of the belt, a rail groove is provided on the top of the slide rail, one end of the latch can be inserted into the rail groove and can slide in the rail groove.

[0014] Preferably, the inner wall of the waist belt is provided with a soft pad.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0016] 1. By setting up a grip structure, a cutting mechanism is installed at one end of the grip, and a battery is installed at the other end. The user can hold the grip to swing the cutting mechanism at the end to operate. The user can swing the cutting mechanism to move over a large range, which is more flexible to operate and can freely trim the surroundings of the green plants, which is conducive to improving trimming efficiency.

[0017] 2. By setting a foldable support frame at the bottom of the handle, when the user's arm becomes tired while holding the handle in the process of pruning, the support frame can be opened to suspend the cutting mechanism at one end of the handle on the ground, and the other end can be stabilized by hand, which can effectively relax the user's arm and improve the user experience. It is convenient for the user to place the cutting mechanism at any time during the process of pruning green plants. The cutting mechanism will not touch the ground and will not be damaged, thereby further protecting the cutting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a state diagram of the support frame of the present invention after it is opened;

[0021] Figure 3 It is a schematic diagram of the structure of the grip rod, the shaft seat and the support frame of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the installation box of the present invention;

[0023] Figure 5 An exploded view of the cutting assembly of the present invention;

[0024] Figure 6 for Figure 4 Enlarged view of part A in the middle;

[0025] Figure 7 It is a structural schematic diagram of the support frame and the adsorption plate of the present invention;

[0026] Figure 8 for Figure 7 Enlarged view of middle part B;

[0027] Fig. 9 This is a schematic diagram of the structure of the present invention with an auxiliary support assembly installed;

[0028] Fig.10 It is an exploded view of the auxiliary support assembly of the present invention.

[0029] Description of reference numerals:

[0030] 1. Cutting assembly; 2. Mounting box; 3. Axle seat; 4. Grip; 5. Support frame; 6. First grip; 7. Adsorption plate; 8. Support plate; 9. Second grip; 10. Mounting ear; 11. Shoulder strap; 12. Threaded pipe; 13. Battery; 14. Motor; 15. Driving wheel; 16. Three-phase motor; 17. Main cutting rod; 171. Secondary cutting rod; 18. Slide groove; 19. Sliding block; 20. Driven wheel; 21. First connecting rod; 22. Second connecting rod; 23. Foot pad; 24. Magnetic block; 25. Mounting pin; 26. Support rod; 27. Belt; 28. Latch; 29. ​​Slide rail; 30. Rail groove; 31. Cushion. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figure 1 - Figure 8 A pruning shear shown in the figure comprises a grip 4, a cutting mechanism is arranged at one end of the grip 4, and a battery 13 is arranged at the other end, the cutting mechanism comprises a mounting box 2 and a cutting assembly 1 arranged at the end of the mounting box 2, a three-phase motor 16 is installed inside the mounting box 2, the three-phase motor 16 is connected to the battery 13 through a cable, a cam mechanism is connected to the output shaft end of the three-phase motor 16, one end of the cam mechanism is connected to the cutting assembly 1, the cutting assembly 1 comprises a main cutting rod 17, one end of the main cutting rod 17 is fixed to the end of the mounting box 2, and a movable auxiliary cutting rod 171 is arranged below the main cutting rod 17;

[0033] The cam mechanism includes a driving wheel 15 fixed to the output shaft end of the three-phase motor 16, one side of the driving wheel 15 is meshedly connected with a driven wheel 20, one side of the bottom of the driven wheel 20 is rotatably connected with a first connecting rod 21, one end of the first connecting rod 21 is rotatably connected with a second connecting rod 22, one end of the second connecting rod 22 is connected to the end of the auxiliary cutting rod 171 through a rotating shaft, and the end of the auxiliary cutting rod 171 is inserted into the installation box 2 and can perform linear motion in the installation box 2;

[0034] It should be noted that a slider 19 is provided at the bottom of the main cutting rod 17, and a slide groove 18 corresponding to the slider 19 is provided at the top of the auxiliary cutting rod 171;

[0035] During the pruning process, the main cutting rod 17 always remains stationary, and the auxiliary cutting rod 171 makes reciprocating linear motion. During the movement, the branches of the green plants can be cut off between the blades of the main cutting rod 17 and the auxiliary cutting rod 171, thereby achieving the purpose of continuous pruning, and the slider 19 will not shift in the slide groove 18, so that the main cutting rod 17 and the auxiliary cutting rod 171 maintain their positions and will not be misplaced.

[0036] Specifically, during the pruning operation, the user starts the battery 13, the output shaft of the three-phase motor 16 drives the driving wheel 15 to rotate, the driving wheel 15 drives the driven wheel 20 to rotate, the driven wheel 20 drives the first connecting rod 21, the first connecting rod 21 pulls the second connecting rod 22, and the second connecting rod 22 pulls the auxiliary cutting rod 171. During this process, the first connecting rod 21 is pulled and pushed by the driven wheel 20, and the end of the first connecting rod 21 also pulls and pushes the second connecting rod 22, so that the auxiliary cutting rod 171 can be pulled and pushed, and the auxiliary cutting rod 171 performs a reciprocating linear motion. The user holds the handle 4, and moves the main cutting rod 17 and the auxiliary cutting rod 171 close to the place where the green plants need to be pruned, and the blades of the main cutting rod 17 and the auxiliary cutting rod 171 cut and prune the green plants.

[0037] like Figure 1 and Figure 2 As shown, the outer wall of the grip 4 and the housing of the battery 13 are also fixed with mounting ears 10, a shoulder strap 11 is connected between the two mounting ears 10, and a threaded tube 12 is provided at the end of the battery 13, and the threaded tube 12 is screwed and connected to the end of the grip 4 through a thread;

[0038] A support plate 8 is also fixed to the outer wall of the grip rod 4, a second grip 9 is fixed to one side wall of the support plate 8, and a first grip 6 is also fixed to the outer wall of the grip rod 4 at a position close to the support plate 8; specifically, the user can slung the shoulder strap 11 across the shoulder, and use the traction of the shoulder strap 11 to reduce the gravity on the arm, which can save energy and relieve arm soreness and fatigue. In addition, by holding the second grip 9 with one hand and the grip rod 4 with the other hand, the grip rod 4 can be swung more stably to facilitate driving the cutting assembly 1 close to the green plants. By holding the first grip 6 with one hand, the first grip 6 is in the middle position of the pruning device, which is conducive to maintaining the balance of the pruning device, and lifting the grip rod 4 makes it convenient to carry the entire pruning device.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, an axle seat 3 is fixed to one end of the grip 4 close to the mounting box 2, a support frame 5 is connected to one side of the axle seat 3, the support frame 5 is an arc plate, the inner wall of the support frame 5 can fit with the outer wall of the grip 4, a motor 14 is fixed to one side of the axle seat 3, a triangular prism shaft is provided at the output shaft end of the motor 14, the end of the triangular prism shaft passes through the axle seat 3 and is connected to the support frame 5;

[0040] Before the user needs to take a rest, the motor 14 is started, and the output shaft of the motor 14 drives the support frame 5 to move. The support frame 5 rotates around the output shaft of the motor 14, and the support frame 5 and the handle 4 are in a vertical state. The motor 14 is turned off, and the support frame 5 stably supports the handle 4. At this time, the cutting mechanism at the end of the handle 4 is also supported, and the user does not need to lift it with both hands. Since the blade of the cutting mechanism is relatively sharp, the cutting mechanism is suspended in the air, which can protect other structures and also protect itself from bumps.

[0041] A magnetic block 24 is provided at one end of the support frame 5, and an adsorption plate 7 corresponding to the magnetic block 24 is provided on the outer wall of the grip 4, and a foot pad 23 is also fixed to the end of the support frame 5; it should be noted that when the support frame 5 is not in use, one end of the support frame 5 rotates around the shaft seat 3 and moves toward the grip 4, and then fits with the grip 4. At the same time, the magnetic block 24 at the end of the support frame 5 contacts the adsorption plate 7 on the outer wall of the grip 4. The adsorption plate 7 is made of iron material. The end of the support frame 5 is in a fixed state. When it is used again, the end of the support frame 5 can be pulled down by hand to separate the magnetic block 24 from the adsorption plate 7, so that the support frame 5 can be rotated and unfolded.

[0042] like Fig. 9 and Fig.10 As shown, an auxiliary support assembly is also provided on one side of the grip 4, and the auxiliary support assembly includes a support rod 26 and a belt 27 arranged on one side of the grip 4, and pin rings are provided on both ends of the support rod 26, and a mounting pin 25 is provided between the pin ring at one end of the support rod 26 and the grip 4, and a plug pin 28 is provided on the pin ring at the other end, and a slide rail 29 is provided on the outer wall of the belt 27, and a rail groove 30 is provided on the top of the slide rail 29, and one end of the plug pin 28 can be inserted into the rail groove 30 and can slide in the rail groove 30; a cushion 31 is provided on the inner wall of the belt 27; a threaded hole is provided on the top of the grip 4, and an external thread is provided on the outer wall of the mounting pin 25, one end of the mounting pin 25 is passed through the pin ring at one end of the support rod 26, and then screwed into the threaded hole of the grip 4 through a thread, and the mounting pin 25 will not press the pin ring tightly to ensure that the pin ring and the support rod 26 can rotate freely;

[0043] When you want to use it more labor-savingly, place the pin ring at the other end of the support rod 26 above the rail groove 30, and pass the pin 28 through the hole in the middle of the pin ring and through the rail groove 30. Push the grip 4 to drive the support rod 26. One end of the support rod 26 drives the pin 28 to slide in the rail groove 30. During the pruning process, the support rod 26 applies part of the downward pressure of the grip 4 to the slide rail 29. The slide rail 29 squeezes the belt 27, and the belt 27 applies force to the user's waist. At this time, through the support of the waist, the gravity on the user's arm can be saved, which is helpful to relieve the fatigue of the user's arm.

[0044] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pruning shear, characterized in that: The invention comprises a gripping rod (4), one end of which is provided with a cutting mechanism, and the other end of which is provided with a storage battery (13), the cutting mechanism comprising a mounting box (2) and a cutting assembly (1) arranged at the end of the mounting box (2), a three-phase motor (16) being installed inside the mounting box (2), the three-phase motor (16) being connected to the storage battery (13) via a cable, a cam mechanism being connected to the output shaft end of the three-phase motor (16), one end of the cam mechanism being connected to the cutting assembly (1), the cutting assembly (1) comprising a main cutting rod (17), one end of which is fixed to the end of the mounting box (2), and a movable auxiliary cutting rod (171) being arranged below the main cutting rod (17).

2. A pruning shear according to claim 1, characterized in that: The cam mechanism comprises a driving wheel (15) fixed to the output shaft end of a three-phase motor (16); one side of the driving wheel (15) is meshingly connected to a driven wheel (20); one side of the bottom of the driven wheel (20) is rotatably connected to a first connecting rod (21); one end of the first connecting rod (21) is rotatably connected to a second connecting rod (22); one end of the second connecting rod (22) is connected to an end of a secondary cutting rod (171) via a rotating shaft; the end of the secondary cutting rod (171) is inserted into the interior of the installation box (2) and can perform linear motion in the installation box (2).

3. A pruning shear according to claim 2, characterized in that: A sliding block (19) is provided at the bottom of the main cutting rod (17), and a sliding groove (18) corresponding to the sliding block (19) is provided at the top of the auxiliary cutting rod (171).

4. A pruning shear according to claim 1, characterized in that: The outer wall of the grip rod (4) and the outer shell of the battery (13) are also fixed with mounting ears (10), and a shoulder strap (11) is connected between the two mounting ears (10). The end of the battery (13) is provided with a threaded tube (12), and the threaded tube (12) is connected to the end of the grip rod (4) by screwing.

5. A pruning shear according to claim 1, characterized in that: A support plate (8) is also fixed to the outer wall of the grip rod (4), a second grip (9) is fixed to one side wall of the support plate (8), and a first grip (6) is also fixed to one side of the outer wall of the grip rod (4) close to the support plate (8).

6. A pruning shear according to claim 1, characterized in that: An axle seat (3) is fixed to one end of the gripping rod (4) close to the mounting box (2); a support frame (5) is connected to one side of the axle seat (3); the support frame (5) is a circular arc plate; the inner wall of the support frame (5) can fit with the outer wall of the gripping rod (4); a motor (14) is fixed to one side of the axle seat (3); a triangular prism shaft is arranged at the output shaft end of the motor (14); the end of the triangular prism shaft passes through the axle seat (3) and is connected to the support frame (5).

7. A pruning shear according to claim 6, characterized in that: A magnetic block (24) is arranged at one end of the support frame (5), an adsorption plate (7) corresponding to the magnetic block (24) is arranged on the outer wall of the gripping rod (4), and a foot pad (23) is also fixed to the end of the support frame (5).

8. The pruning shears according to claim 1, characterized in that: An auxiliary support assembly is also provided on one side of the grip (4), and the auxiliary support assembly comprises a support rod (26) and a waist belt (27) provided on one side of the grip (4). Pin rings are provided at both ends of the support rod (26). A mounting pin (25) is provided between the pin ring at one end of the support rod (26) and the grip (4), and a latch (28) is provided on the pin ring at the other end. A slide rail (29) is provided on the outer wall of the waist belt (27), and a rail groove (30) is provided on the top of the slide rail (29). One end of the latch pin (28) can be inserted into the rail groove (30) and can slide in the rail groove (30).

9. A pruning shear according to claim 8, characterized in that: The inner wall of the waist belt (27) is provided with a soft pad (31).

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