A high-efficiency electric shrub trimmer

Abstract

The present invention relates to the technical field of forestry machinery, and specifically discloses a high-efficiency electric bush trimmer, comprising a mobile frame, one end of which is provided with a guide assembly for guiding bush branches, the guide assembly comprising a fixed frame provided at one end of the mobile frame, the bottom of the fixed frame is provided with a first guide plate and a second guide plate, and the second guide plate is spaced apart from the first guide plate, and the front ends of the second guide plate and the first guide plate are both in a pointed cone shape; the upper end of the guide assembly is provided with a reciprocating trimming mechanism. The high-efficiency electric bush trimmer can realize horizontal reciprocating trimming while the blade rotates through the reciprocating trimming mechanism provided in conjunction with the guide assembly, which can greatly reduce the bending, jumping and other displacements of the bush branches, ensure the smoothness of the trimmed part, and also reduce the friction and collision frequency between the blade and the bush, thereby reducing the wear of the blade.

Description

Technical Field

[0001] The invention relates to the technical field of forestry machinery, and in particular to a high-efficiency electric shrub trimmer. Background Art

[0002] As a forestry machine, a shrub trimmer is mainly used for pruning and clearing bushes, and the shrub branches are cut by rotating blades. In the prior art, the working principle of the shrub trimmer usually relies on the high-speed rotation of the blade so that the edge of the blade directly contacts the shrub branches and exerts sufficient cutting force.

[0003] However, this direct contact cutting method has a series of significant disadvantages. First, because the blade is pushed forward and in contact with the bush, the small bush branches lack fixation and are easily bent by force. Therefore, the bush is prone to bend or jump when it is subjected to the pressure of the blade. This unstable cutting state not only affects the flatness of the cut surface, but also may cause tearing or repeated cutting, which not only reduces the cutting quality of the bush, but also makes the cut surface uneven. Secondly, the bending or jumping of the bush increases the friction and collision frequency between the blade and the bush. This additional friction and collision not only aggravates the wear of the blade and shortens its service life, but also may increase the frequency and cost of replacing the blade. In addition, after the existing bush trimmer cuts off the branches, the branches are often cut twice or multiple times when they fall, which not only further aggravates the wear of the blade, but also may cause the branches to break, increasing the difficulty of subsequent cleaning. The broken branches are not only difficult to collect and handle, but also may pollute the surrounding environment.

[0004] Therefore, it is necessary to propose a high-efficiency electric shrub trimmer to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a high-efficiency electric shrub trimmer, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A high-efficiency electric shrub trimmer comprises a mobile frame, one end of the mobile frame is provided with a guide assembly for guiding shrub branches, the guide assembly comprises a fixed frame arranged at one end of the mobile frame, a first guide plate and a second guide plate are arranged at the bottom of the fixed frame, and the second guide plate is spaced apart from the first guide plate, the front ends of the second guide plate and the first guide plate are both in a pointed cone shape, and a gap for the bush branches to pass through is formed between the first guide plate and the second guide plate;

[0008] The upper end of the guide assembly is provided with a reciprocating flattening mechanism, and the reciprocating flattening mechanism includes a reciprocating frame horizontally movably connected to the fixed frame, the reciprocating frame is rotatably connected to a first rotating shaft corresponding to the first guide plate, the upper end of the first rotating shaft is fixedly provided with a synchronous wheel, and a plurality of the synchronous wheels are meshed with a synchronous chain, and the two ends of the top of the reciprocating frame are symmetrically rotatably connected to the second rotating shaft, the second rotating shaft is fixedly provided with a first gear, the top of the first rotating shaft is fixedly provided with a second gear meshed with the first gear, and an upper end of one of the second rotating shafts is provided with a motor for driving the second rotating shaft to rotate, and a driving arm is fixedly provided at the lower end of the second rotating shaft, and the driving arm is rotatably connected to an end of the driving arm away from the second rotating shaft, and the first force plates corresponding to the driving arms are symmetrically provided at both ends of the fixed frame, and are configured so that when the driving arm rotates, the roller and the first force plates roll and cooperate with each other, thereby the reciprocating frame is horizontally displaced, and the bottom of the first guide plate is open, and the lower end of the first rotating shaft extends to the inner side of the first guide plate and is fixedly provided with a blade.

[0009] Preferably, the number of the first guide plates is at least two, and the side wall of the first guide plate is provided with a first through slot corresponding to the blade and used for the blade to enter and exit, and the top of the first guide plate is provided with a second through slot for avoiding the first rotating shaft;

[0010] The side wall of the second guide plate is provided with an avoidance groove corresponding to the first through groove and used for the blade to enter and exit.

[0011] Preferably, the second gear is fixed on the second rotating shaft at the end, and the diameter of the second gear is smaller than the diameter of the first gear.

[0012] Preferably, it also includes a pushing mechanism for pushing the shrub branches, the pushing mechanism including a guide rail fixedly arranged on the bottom wall of the fixed frame and corresponding to the second guide plate, and each blade corresponds to two moving frames, the guide rail is movably connected with a moving frame, and the moving direction of the moving frame is perpendicular to the moving direction of the reciprocating frame, an end of the moving frame close to the guide rail is provided with an oblique guide groove, an end of the oblique guide groove away from the guide rail is provided with a straight guide groove, the straight guide groove is parallel to the moving direction of the reciprocating frame, a moving arm corresponding to the second guide plate is vertically arranged at the bottom of the moving frame, and the bottom of the reciprocating frame is rotatably connected to a movable arm connected to the moving frame A guide wheel corresponding to and cooperating with the inclined guide groove and the straight guide groove, and is configured so that when the reciprocating frame drives the blade to move toward the second guide plate on one side of the blade, the movable arm rod corresponding to the second guide plate is driven forward by the movable frame, and a notch is provided at one end of the back side of the movable arm rod close to the first guide plate, and hole grooves are provided at the upper and lower ends of the notch, and a push plate is movably provided at the notch, and a rotating shaft is fixedly provided on one end of the push plate located on the inner side of the notch, and the two ends of the rotating shaft are respectively movably connected to the inner sides of the hole grooves at the two ends of the notch, and a torsion spring is provided between the top of the rotating shaft and the top wall of the inner cavity of the hole groove at the upper end.

[0013] Preferably, the pushing mechanism is provided with a clamping assembly for fixing the shrub branches, the clamping assembly includes a groove arranged on the top of the second guide plate and corresponding to the movable arm rod, the lower end of the movable arm rod extends to the inner side of the groove and cooperates with the movable guide of the groove, the rear end of the bottom of the inner cavity of the groove is provided with a second force-bearing plate, and both ends of the second force-bearing plate are slopes, a fixed clamping plate is fixedly provided at one end of the back of the push plate away from the movable arm rod, a sliding groove is provided on the back of the push plate, the rotating shaft is a hollow structure, and an inner shaft is vertically and movably connected to the inner side of the lower end of the rotating shaft, and the lower end of the inner shaft extends to the bottom of the movable arm rod, and The bottom of the inner shaft is movably provided with a ball for rolling with the bottom wall of the groove inner cavity and the top wall of the second force plate, and one side of the rotating shaft is provided with a slot connected to the slide groove, and the upper end of the inner shaft is fixedly provided with a driving plate that passes through the slot and extends to the inner side of the slide groove, and the end of the inner side of the slide groove away from the rotating shaft is movably connected with the third force plate along the width direction of the push plate, and the lower end of the third force plate is matched with the inclined surface of the side of the driving plate away from the inner shaft, and the back end of the push plate close to the moving arm rod is provided with a movable splint fixedly connected to the third force plate, and a second elastic member is provided between the side of the third force plate away from the rotating shaft and the side of the slide groove cavity away from the rotating shaft.

[0014] Preferably, the movable splint is provided with an adaptive component, and the adaptive component includes a floating groove arranged on the side of the movable splint close to the fixed splint, the inner side of the floating groove is movably connected to a floating plate corresponding to the fixed splint, a first elastic member is provided between one side of the floating plate and the inner wall of the floating groove, and when the first elastic member is in an initial state, one end of the floating plate protrudes from the side wall of the movable splint.

[0015] Preferably, the driving plate and the third force-bearing plate are configured so that when the driving plate moves upward, the third force-bearing plate drives the movable clamping plate to move toward the fixed clamping plate, and at this time the second elastic member is compressed.

[0016] Preferably, the push plate is configured so that when the torsion spring is in the initial state, one end of the push plate corresponds to the gap between the first guide plate and the second guide plate.

[0017] Preferably, the guide wheel is initially located at one end of the inclined guide groove close to the straight guide groove.

[0018] Preferably, a guide rod corresponding to the movable arm is provided at the inner upper end of the groove, and the lower end of the movable arm is movably guided by the guide rod.

[0019] Compared with the prior art, the present invention provides a high-efficiency electric shrub trimmer, which has the following beneficial effects:

[0020] 1. The high-efficiency electric shrub trimmer can realize horizontal reciprocating trimming while the blade rotates through the reciprocating trimming mechanism and the guide component. The blade can cooperate with the guide component to limit the shrub branches during trimming cutting, which can greatly reduce the bending, jumping and other displacements of the shrub branches, ensuring the smoothness of the trimmed part. At the same time, it can also reduce the friction and collision frequency between the blade and the shrub, thereby reducing the wear of the blade and improving the trimming quality.

[0021] 2. The high-efficiency electric shrub trimmer is arranged in linkage with the reciprocating trimming mechanism through the setting of the pushing mechanism. After each trimming and cutting, the shrub branches can be pushed backwards, so that the shrub branches are moved away from the displacement path of the blade, avoiding the shrub branches being cut by the blade for the second or multiple times, which can reduce the wear of the blade and reduce the difficulty of subsequent cleaning of the branches. At the same time, the pushing backward method can also avoid affecting the forward movement of the shrub trimmer and avoid obstruction. The clamping assembly arranged on the pushing mechanism can clamp the shrub branches when pushing them backwards, thereby increasing the firmness between the pushing mechanism and the shrub branches, ensuring that the shrub branches are completely pushed to the rear end of the blade and then separated from the pushing mechanism. In addition, the clamping assembly is arranged in linkage with the pushing mechanism, with a compact structure and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the present invention from another perspective.

[0024] Figure 3 It is a schematic diagram of the structure of the present invention in a disassembled state.

[0025] Figure 4It is a schematic diagram of the overall structure of the reciprocating stubble-leveling mechanism and the guide assembly of the present invention.

[0026] Figure 5 The present invention Figure 4 A schematic diagram of the structure from another perspective.

[0027] Figure 6 The present invention Figure 4 Schematic diagram of the structure when the foundation is disassembled.

[0028] Figure 7 The present invention Figure 6 A schematic diagram of the structure from another perspective.

[0029] Figure 8 It is a structural schematic diagram of the reciprocating flattening mechanism and the pushing component of the present invention.

[0030] Fig. 9 The present invention Figure 8 A schematic diagram of the structure from another perspective.

[0031] Fig.10 The present invention Figure 8 Schematic diagram of the structure when the foundation is disassembled.

[0032] Fig.11 It is a schematic structural diagram of the second force-bearing plate, the guide rod and the second guide plate of the present invention in a disassembled state.

[0033] Fig.12 It is a structural schematic diagram of a group of pushing mechanisms corresponding to one of the blades of the present invention in a state of cooperation with the second force-bearing plate and the guide wheel.

[0034] Fig.13 The present invention Fig.12 A schematic diagram of the structure from another perspective.

[0035] Fig.14 It is a schematic structural diagram of the present invention in which the movable arm, the push plate and the movable clamping plate are disassembled.

[0036] Fig.15 The present invention Fig.14 A schematic diagram of the structure from another perspective.

[0037] Fig.16 It is a schematic structural diagram of the present invention when the rotating shaft, the inner shaft and the third load-bearing plate are in a disassembled state.

[0038] In the figure: 1, mobile frame; 2, first guide plate; 3, second guide plate; 4, motor; 5, blade; 6, fixed frame; 7, first gear; 8, synchronous chain; 9, synchronous wheel; 10, first force plate; 11, mobile arm; 12, first rotating shaft; 13, groove; 14, avoidance groove; 15, first through groove; 16, second rotating shaft; 17, push plate; 18, second gear; 19, driving arm; 20, roller; 21, reciprocating frame; 22, mobile frame; 2 3. Guide rail; 24. Second force-bearing plate; 25. Oblique guide groove; 26. Straight guide groove; 27. Guide wheel; 28. Movable splint; 29. ​​Fixed splint; 30. Floating plate; 31. Floating groove; 32. First elastic member; 33. Rotating shaft; 34. Torsion spring; 35. Third force-bearing plate; 36. Slide groove; 37. Notch; 38. Ball; 39. Inner shaft; 40. Hole groove; 41. Drive plate; 42. Second elastic member; 43. Slot; 44. Second through groove; 45. Guide rod. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] like Figure 1-Figure 7 As shown, a high-efficiency electric shrub trimmer includes a mobile frame 1, and mobile wheels are arranged around the bottom of the mobile frame 1. The mobile frame 1 can be towed and displaced by a traction device, or can be pushed and displaced manually, or the mobile wheels can be arranged to be able to rotate and move by themselves. The specific configuration can be made according to actual needs, and conventional technical means can be adopted. In addition, the mobile frame 1 can adjust the height, so as to adapt to different trimming heights. The height adjustment also adopts conventional means, and no more details are given. Different from the prior art, a guide assembly for guiding shrub branches is arranged at one end of the mobile frame 1, and the guide assembly includes a fixed frame 6 arranged at one end of the mobile frame 1, and a first guide plate 2 and a second guide plate 3 are fixedly arranged at the bottom of the fixed frame 6. The number of the first guide plates 2 is at least two, and the second guide plate 3 is arranged at intervals from the first guide plate 2. The front ends of the second guide plate 3 and the first guide plate 2 are both conical, and a gap for the passage of shrub branches is formed between the first guide plate 2 and the second guide plate 3;

[0041] Further, such as Figure 1-Figure 10As shown, a reciprocating flattening mechanism is provided at the upper end of the guide assembly, and the reciprocating flattening mechanism includes a reciprocating frame 21 horizontally movably connected to the fixed frame 6, the reciprocating frame 21 is rotatably connected to the first rotating shaft 12 corresponding to the first guide plate 2 one by one, and there are at least two first rotating shafts 12, and the drawings of this application take two as an example, the upper end of the first rotating shaft 12 is fixedly provided with a synchronous wheel 9, and a plurality of synchronous wheels 9 are meshed with a synchronous chain 8, and the two ends of the top of the reciprocating frame 21 are symmetrically rotatably connected with the second rotating shaft 16, and the first gear 7 is fixedly provided on the second rotating shaft 16, and the top of the two first rotating shafts 12 located at the end is fixedly provided with a second gear 18 meshing with the first gear 7, and the diameter of the second gear 18 is smaller than the diameter of the first gear 7, so that the first rotating shaft 12 can rotate quickly, and the rotation speed of the second rotating shaft 16 can be configured to rotate at a lower speed, and the upper end of one of the second rotating shafts 16 is provided with a The motor 4 rotates the second rotating shaft 16, and a driving arm 19 is fixedly provided at the lower end of the second rotating shaft 16. The end of the driving arm 19 away from the second rotating shaft 16 is rotatably connected to a roller 20. The two ends of the fixed frame 6 are symmetrically provided with first force-bearing plates 10 corresponding to the driving arms 19, and are configured so that when the driving arms 19 rotate, the rollers 20 roll and cooperate with the first force-bearing plates 10, so that the reciprocating frame 21 is horizontally displaced. The bottom of the first guide plate 2 is open, and the lower end of the first rotating shaft 12 extends to the inner side of the first guide plate 2 and is fixedly provided with a blade 5. The side wall of the first guide plate 2 is provided with a first through groove 15 corresponding to the blade 5 and used for the blade 5 to enter and exit. The top of the first guide plate 2 is provided with a second through groove 44 for avoiding the first rotating shaft 12, and the side wall of the second guide plate 3 is provided with an avoidance groove 14 corresponding to the first through groove 15 and used for the blade 5 to enter and exit, so that the first rotating shaft 12 can drive the blade 5 to move back and forth.

[0042] like Figure 4-Figure 11 , Figure 12-16As shown, it also includes a pushing mechanism for pushing the branches of the shrub, the pushing mechanism includes a guide rail 23 fixedly arranged on the bottom wall of the fixed frame 6 and corresponding to the second guide plate 3, and each blade 5 corresponds to two moving frames 22, the moving frame 22 is movably connected to the guide rail 23, and the moving direction of the moving frame 22 is perpendicular to the moving direction of the reciprocating frame 21, an oblique guide groove 25 is arranged at one end of the moving frame 22 close to the guide rail 23, and a straight guide groove 26 is arranged at one end of the oblique guide groove 25 away from the guide rail 23, and the straight guide groove 26 is parallel to the moving direction of the reciprocating frame 21, a moving arm 11 corresponding to the second guide plate 3 is vertically arranged at the bottom of the moving frame 22, and a guide wheel 27 corresponding to the moving frame 22 one by one and cooperating with the oblique guide groove 25 and the straight guide groove 26 is rotatably connected at the bottom of the reciprocating frame 21, and the guide wheel 27 is initially located in the oblique guide groove 2 5 is close to one end of the straight guide groove 26, and is configured so that when the reciprocating frame 21 drives the blade 5 to move toward the second guide plate 3 on one side of the blade 5, the movable arm 11 corresponding to the second guide plate 3 is driven forward by the movable frame 22, and a notch 37 is provided at one end of the back side of the movable arm 11 close to the first guide plate 2, and a hole groove 40 is provided at both the upper and lower ends of the notch 37, and a push plate 17 is movably provided at the notch 37, and a rotating shaft 33 is fixedly provided on one end of the push plate 17 located on the inner side of the notch 37, and the two ends of the rotating shaft 33 are respectively movably connected to the inner sides of the hole groove 40 at both ends of the notch 37, and a torsion spring 34 is provided between the top of the rotating shaft 33 and the inner cavity top wall of the hole groove 40 at the upper end, and the push plate 17 is configured so that when the torsion spring 34 is in the initial state, one end of the push plate 17 corresponds to the gap between the first guide plate 2 and the second guide plate 3.

[0043] like Figure 13-Figure 16As shown, the pushing mechanism is provided with a clamping assembly for fixing the shrub branches, the clamping assembly includes a groove 13 arranged at the top of the second guide plate 3 and corresponding to the movable arm 11, a groove 13 is arranged on the second guide plate 3 located at the end, and two grooves 13 are arranged on the second guide plate 3 located in the middle, the lower end of the movable arm 11 extends to the inner side of the groove 13 and cooperates with the movable guide of the groove 13. Specifically, a guide rod 45 corresponding to the movable arm 11 is arranged at the upper end of the inner side of the groove 13, and the lower end of the movable arm 11 cooperates with the guide rod 45 for movable guidance, a second force-bearing plate 24 is arranged at the rear end of the bottom of the inner cavity of the groove 13, and both ends of the second force-bearing plate 24 are slopes, a fixed clamping plate 29 is fixedly arranged at one end of the back of the push plate 17 away from the movable arm 11, a slide groove 36 is arranged on the back of the push plate 17, the rotating shaft 33 is a hollow structure, and the inner side of the lower end of the rotating shaft 33 is vertically movably connected with an inner shaft 39, and the lower end of the inner shaft 39 extends to the bottom of the movable arm 11 The bottom of the inner shaft 39 is movably provided with a ball 38 for rolling with the bottom wall of the inner cavity of the groove 13 and the top wall of the second force-bearing plate 24. A slot 43 connected to the slide groove 36 is provided on one side of the rotating shaft 33. A driving plate 41 extending through the slot 43 to the inner side of the slide groove 36 is fixedly provided on the upper end of the inner shaft 39. The end of the inner side of the slide groove 36 away from the rotating shaft 33 is movably connected with the third force-bearing plate 35 along the width direction of the push plate 17, and the lower end of the third force-bearing plate 35 is away from the inner side of the driving plate 41. The inclined surface on one side of the shaft 39 is matched, and a movable splint 28 fixedly connected to the third force plate 35 is provided at one end of the back of the push plate 17 close to the movable arm 11. A second elastic member 42 is provided between the side of the third force plate 35 away from the rotating shaft 33 and the side of the inner cavity of the slide groove 36 away from the rotating shaft 33. The driving plate 41 and the third force plate 35 are configured so that when the driving plate 41 moves upward, the third force plate 35 drives the movable splint 28 to move toward the direction of the fixed splint 29, and the second elastic member 42 is compressed at this time.

[0044] Further, such as Figure 14-15 As shown, in order to adapt to bush branches of different thicknesses, an adaptive component is provided on the movable splint 28, and the adaptive component includes a floating groove 31 provided on one side of the movable splint 28 close to the fixed splint 29, and the inner side of the floating groove 31 is movably connected to the floating plate 30 corresponding to the fixed splint 29, and a first elastic member 32 is provided between one side of the floating plate 30 and the inner wall of the floating groove 31, and when the first elastic member 32 is in the initial state, one end of the floating plate 30 protrudes from the side wall of the movable splint 28;

[0045] It should be noted that protective shells are provided at the bottom and top of the fixed frame 6, the motor 4 is arranged on the protective shell at the top, and the protective shell at the bottom of the fixed frame 6 is provided with openings corresponding to the first rotating shaft 12 and the movable arm 11, which are used to adapt to the displacement of the movable arm 11 and the first rotating shaft 12.

[0046] When in use, the mobile frame 1 can be displaced by special mechanical traction, or can be pushed manually, or can be set to a self-movable form. When pruning, the mobile frame 1 enters the bushes, during which the motor 4 drives one of the second rotating shafts 16 to rotate, and the second rotating shaft 16 drives the first gear 7 and the driving arm 19 to rotate. The first gear 7 will drive the first rotating shaft 12 to rotate through the second gear 18. Under the action of the synchronous chain 8 and the synchronous wheel 9, multiple first rotating shafts 12 can rotate synchronously, and then the first rotating shaft 12 drives the blade 5 to rotate. During this period, when the driving arm 19 rotates, it will intermittently rotate with the roller 20 The first force-bearing plate 10 touches and then rolls, so that the reciprocating frame 21 can move back and forth, and the bush branches can enter the gap between the first guide plate 2 and the second guide plate 3 under the guidance of the pointed cones at the front ends of the first guide plate 2 and the second guide plate 3, and the blade 5 rotates and moves back and forth, so that the blade 5 can enter the gap between the second guide plate 3 and the first guide plate 2 through the first through groove 15. When cutting, the side of the bush branches away from the blade 5 is blocked by the side wall of the second guide plate 3, so that the bush branches are restricted, and then the blade 5 can achieve cutting, and the avoidance groove 14 can avoid the blade 5, so as to reciprocate;

[0047] In addition, when the blade 5 moves toward the direction of the second guide plate 3, the guide wheel 27 follows the reciprocating frame 21 to move. Since the guide wheel 27 is initially located at one end of the inclined guide groove 25 close to the straight guide groove 26, when the blade 5 moves toward the second guide plate 3 on one side, the movable frame 22 corresponding to the second guide plate 3 will move in the forward direction under the action of the guide wheel 27 and the inclined guide groove 25, and the guide wheel 27 on the other side of the blade 5 enters the straight guide groove 26. Since the straight guide groove 26 is parallel to the displacement direction of the reciprocating frame 21, the movable frame 22 on the other side of the blade 5 remains stationary due to the guide wheel 27 entering the straight guide groove 26. Due to the forward movement of the movable frame 22, the movable frame 22 The arm 11 will drive the push plate 17 forward. Even if the bush branch touches the push plate 17, since the push plate 17 rotates in the notch 37 through the rotating shaft 33, the front side of the push plate 17 will automatically flip backward when it touches the bush branch, and at this time the torsion spring 34 is twisted and generates a reverse force. When the push plate 17 is separated from the bush branch, the push plate 17 is reset to correspond to the gap between the first guide plate 2 and the second guide plate 3 again. When the blade 5 completes the cutting and the reverse displacement is reset, the moving arm 11 drives the push plate 17 to move in the reverse direction. At this time, one end of the push plate 17 will not flip over even if it touches the bush branch due to the obstruction of the inner wall of the notch 37. The push plate 17 moves backward and pushes the cut shrub branches backward. When moving backward, the ball 38 at the bottom of the inner shaft 39 moves uphill from the bottom wall of the front end of the inner cavity of the groove 13 to the second force plate 24. During the uphill period, the inner shaft 39 drives the driving plate 41 to move upward, and the driving plate 41 drives the third force plate 35 to move. The third force plate 35 drives the movable clamping plate 28 to move in the direction of the fixed clamping plate 29. The second elastic member 42 is compressed, and then the movable clamping plate 28 drives the floating plate 30 to cooperate with the fixed clamping plate 29 to clamp the shrub branches. When clamping, the floating plate 30 can compress the first elastic member 32 to adapt to the thickness of the shrub branches. When the shrub branches are completely driven to the rear of the blade 5, When the blade 5 is moved back and forth, the cut shrub branches are continuously clamped and pushed backwards, thereby avoiding secondary or multiple cutting. Moreover, when the blade 5 is displaced toward the second guide plate 3 on one side, the movable arm 11 corresponding to the second guide plate 3 will move forward. When the blade 5 is reset, the movable arm 11 will move backwards. The structure is compact, the linkage is high, and the use is convenient.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and 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, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A high-efficiency electric shrub trimmer, comprising a mobile frame (1), characterized in that: A guide assembly for guiding shrub branches is provided at one end of the mobile frame (1), the guide assembly comprising a fixed frame (6) provided at one end of the mobile frame (1), a first guide plate (2) and a second guide plate (3) provided at the bottom of the fixed frame (6), the second guide plate (3) being spaced apart from the first guide plate (2), the front ends of the second guide plate (3) and the first guide plate (2) both being in a pointed cone shape, and a gap for the shrub branches to pass through is formed between the first guide plate (2) and the second guide plate (3); The upper end of the guide assembly is provided with a reciprocating flattening mechanism, the reciprocating flattening mechanism comprising a reciprocating frame (21) horizontally movably connected to a fixed frame (6), the reciprocating frame (21) being rotatably connected to a first rotating shaft (12) corresponding to the first guide plate (2) in a one-to-one manner, a synchronous wheel (9) being fixedly provided on the upper end of the first rotating shaft (12), a plurality of synchronous wheels (9) being meshed with a synchronous chain (8), the two ends of the top of the reciprocating frame (21) being symmetrically rotatably connected to a second rotating shaft (16), a first gear (7) being fixedly provided on the second rotating shaft (16), a second gear (18) meshing with the first gear (7) being fixedly provided on the top of the first rotating shaft (12), one of the second rotating shafts (12) being fixedly provided with a second gear (18) meshing with the first gear (7), and one of the second rotating shafts (12) being fixedly provided with a second gear (18) meshing with the first gear (7). The upper end of the shaft (16) is provided with a motor (4) for driving the second rotating shaft (16) to rotate, the lower end of the second rotating shaft (16) is fixedly provided with a driving arm (19), one end of the driving arm (19) away from the second rotating shaft (16) is rotatably connected to a roller (20), and first force-bearing plates (10) corresponding to the driving arms (19) are symmetrically provided at both ends of the fixed frame (6), and are configured so that when the driving arms (19) rotate, the rollers (20) and the first force-bearing plates (10) roll in cooperation, thereby causing the reciprocating frame (21) to move horizontally, the bottom of the first guide plate (2) is open, and the lower end of the first rotating shaft (12) extends to the inner side of the first guide plate (2) and is fixedly provided with a blade (5); The invention also comprises a pushing mechanism for pushing the branches of the shrub, the pushing mechanism comprising a guide rail (23) fixedly arranged on the bottom wall of the fixed frame (6) and corresponding to the second guide plate (3), and each blade (5) corresponds to two movable frames (22), the guide rail (23) is movably connected to the movable frame (22), and the movable direction of the movable frame (22) is perpendicular to the movable direction of the reciprocating frame (21), an oblique guide groove (25) is arranged at one end of the movable frame (22) close to the guide rail (23), and a straight guide groove (26) is arranged at one end of the oblique guide groove (25) away from the guide rail (23), and the straight guide groove (26) is parallel to the movable direction of the reciprocating frame (21), a movable arm (11) corresponding to the second guide plate (3) is vertically arranged at the bottom of the movable frame (22), and a movable arm (11) corresponding to the second guide plate (3) is rotatably connected at the bottom of the reciprocating frame (21) and corresponding to the movable frame (22) and corresponding to the oblique guide groove (26) in a one-to-one manner. 5), a guide wheel (27) movably guided by the straight guide groove (26), and configured so that when the reciprocating frame (21) drives the blade (5) to move toward the second guide plate (3) on one side of the blade (5), the movable arm (11) corresponding to the second guide plate (3) is driven forward by the movable frame (22), and a notch (37) is provided at one end of the back of the movable arm (11) close to the first guide plate (2), and holes (40) are provided at both the upper and lower ends of the notch (37), and a push plate (17) is movably provided in the notch (37), and a rotating shaft (33) is fixedly provided on one end of the push plate (17) located on the inner side of the notch (37), and the two ends of the rotating shaft (33) are respectively movably connected to the inner sides of the holes (40) at the two ends of the notch (37), and a torsion spring (34) is provided between the top of the rotating shaft (33) and the top wall of the inner cavity of the hole (40) at the upper end; The pushing mechanism is provided with a clamping assembly for fixing the shrub branches, the clamping assembly comprising a groove (13) arranged at the top of the second guide plate (3) and corresponding to the movable arm (11), the lower end of the movable arm (11) extends to the inner side of the groove (13) and cooperates with the movable guide of the groove (13), the rear end of the bottom of the inner cavity of the groove (13) is provided with a second force plate (24), and both ends of the second force plate (24) are slopes, a fixed clamping plate (29) is fixedly provided at one end of the back of the push plate (17) away from the movable arm (11), a slide groove (36) is provided at the back of the push plate (17), the rotating shaft (33) is a hollow structure, and the inner side of the lower end of the rotating shaft (33) is vertically and movably connected with an inner shaft (39), the lower end of the inner shaft (39) extends to the bottom of the movable arm (11), and the bottom of the inner shaft (39) is movably provided with a 3) a ball (38) rollingly matched with the bottom wall of the inner cavity and the top wall of the second force-bearing plate (24); a slot (43) connected to the slide groove (36) is provided on one side of the rotating shaft (33); a driving plate (41) is fixedly provided on the upper end of the inner shaft (39) and extends through the slot (43) to the inner side of the slide groove (36); an end of the inner side of the slide groove (36) away from the rotating shaft (33) is movably connected with the third force-bearing plate (35) along the width direction of the push plate (17); and the lower end of the third force-bearing plate (35) is matched with the inclined surface of the side of the driving plate (41) away from the inner shaft (39); an end of the back side of the push plate (17) close to the movable arm (11) is provided with a movable clamping plate (28) fixedly connected to the third force-bearing plate (35); a second elastic member (42) is provided between the side of the third force-bearing plate (35) away from the rotating shaft (33) and the side of the inner cavity of the slide groove (36) away from the rotating shaft (33).

2. The high-efficiency electric shrub trimmer according to claim 1, characterized in that: The number of the first guide plates (2) is at least two, and the side wall of the first guide plate (2) is provided with a first through slot (15) corresponding to the blade (5) and used for the blade (5) to enter and exit, and the top of the first guide plate (2) is provided with a second through slot (44) used to avoid the first rotating shaft (12); The side wall of the second guide plate (3) is provided with an avoidance groove (14) corresponding to the first through groove (15) and used for the blade (5) to enter and exit.

3. The high-efficiency electric shrub trimmer according to claim 1, characterized in that: The second gear (18) is fixed on the second rotating shaft (16) at the end, and the diameter of the second gear (18) is smaller than the diameter of the first gear (7).

4. The high-efficiency electric bush trimmer according to claim 1, characterized in that: An adaptive component is provided on the movable splint (28), and the adaptive component includes a floating groove (31) provided on a side of the movable splint (28) close to the fixed splint (29), the inner side of the floating groove (31) is movably connected to a floating plate (30) corresponding to the fixed splint (29), a first elastic member (32) is provided between one side of the floating plate (30) and the inner wall of the floating groove (31), and when the first elastic member (32) is in an initial state, one end of the floating plate (30) protrudes from the side wall of the movable splint (28).

5. The high-efficiency electric shrub trimmer according to claim 1, characterized in that: The drive plate (41) and the third force-bearing plate (35) are configured such that when the drive plate (41) moves upward, the third force-bearing plate (35) drives the movable clamping plate (28) to move in the direction of the fixed clamping plate (29), and at this time the second elastic member (42) is compressed.

6. The high-efficiency electric shrub trimmer according to claim 1, characterized in that: The push plate (17) is configured such that when the torsion spring (34) is in an initial state, one end of the push plate (17) corresponds to the gap between the first guide plate (2) and the second guide plate (3).

7. The high-efficiency electric bush trimmer according to claim 1, characterized in that: Initially, the guide wheel (27) is located at one end of the oblique guide groove (25) close to the straight guide groove (26).

8. The high-efficiency electric shrub trimmer according to claim 1, characterized in that: A guide rod (45) corresponding to the movable arm rod (11) is provided at the inner upper end of the groove (13), and the lower end of the movable arm rod (11) is movably guided and matched with the guide rod (45).

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