Modular hedge trimmer head with adjustable trim profile

Abstract

The utility model provides a modular hedge trimmer head of adjustable pruning modeling, include: U type seat, motor, the motor fixed mounting in the inside intermediate position of U type seat, the output of motor is vertically downward and penetrates the bottom surface of U type seat, at least two kinds of shearing mechanism, the shearing mechanism is configured to be able to alternatively install below U type seat and with the output of motor detachable connection, to share the motor as power source, adjustment mechanism sets up above U type seat for driving U type seat and the motor and the selected shearing mechanism carry out integrated lifting movement, the utility model relates to hedge trimmer head technical field, adjustment mechanism passes through the cooperation of driving motor, threaded rod and pilot rod to control the real -time lifting of shearing mechanism in the operation process, is convenient to form the complex hedge modeling such as wave shape, curved surface, carries out pruning operation to the complex modeling hedge.

Description

Technical Field

[0001] This utility model relates to the field of hedge trimmer heads, and in particular to a modular hedge trimmer head with adjustable trimming shape. Background Technology

[0002] With the development of urban greening and landscape construction, the application of hedges (plant walls) is becoming increasingly widespread. Their shapes have also evolved from simple planar trimming to complex artistic shapes such as wave-shaped, arched, and curved surfaces. The trimming of hedges mainly relies on two methods: manual trimming and automated trimming.

[0003] However, when pruning continuously changing wavy or curved shapes, existing automated pruning equipment has difficulty controlling the height of the cutting components during the process, resulting in the inability to complete the pruning of complex hedge shapes with high quality. Utility Model Content

[0004] The purpose of this utility model is to provide a modular hedge trimmer head with adjustable trimming shape, which facilitates the trimming of hedges with complex shapes.

[0005] This utility model provides a modular hedge trimmer head with adjustable trimming shape, including: a U-shaped base; a motor, wherein the motor is fixedly installed in the middle of the interior of the U-shaped base, and the output end of the motor is vertically downward and penetrates through the bottom surface of the U-shaped base;

[0006] At least two shearing mechanisms are configured to be selectively mounted below the U-shaped base and detachably connected to the output of the motor to share the motor as a power source;

[0007] An adjustment mechanism, located above the U-shaped base, is used to drive the U-shaped base, its motor, and the selected shearing mechanism to perform integrated lifting and lowering movements.

[0008] Preferably, the adjustment mechanism includes:

[0009] Adapter, used to connect to external mobile devices;

[0010] At least one guide rod is fixedly mounted on the adapter;

[0011] A through-slot plate is fixedly connected to one side of the U-shaped seat and slidably sleeved on the outer wall of the guide rod;

[0012] The driving component includes a drive motor fixedly connected to the adapter, and a threaded rod driven to rotate by the drive motor.

[0013] A sliding block is threadedly connected to the threaded rod and fixedly connected to the other side of the U-shaped seat.

[0014] Preferably, the adjustment mechanism is configured such that, during the hedge trimming process, the drive motor drives the U-shaped seat to move up and down along the axial direction of the guide rod and the threaded rod to adjust the working height of the cutting mechanism in real time, thereby trimming the hedge into a wavy or curved shape.

[0015] Preferably, the shearing mechanism includes a rope-swing shearing structure for trimming soft grasses, the rope-swing shearing structure comprising:

[0016] The first connector is detachably fitted onto the vertically downward output end of the motor;

[0017] The disc is fixedly connected to the outer periphery of the first insertion tube;

[0018] At least one flexible tube is fixed to the bottom end of the disc;

[0019] A flexible cutting element is inserted into the hose and extends out of the hose at both ends.

[0020] Preferably, the first connector is locked and fixed to the output end of the motor by a horizontally arranged bolt.

[0021] Preferably, the shearing mechanism includes a reciprocating shearing structure for trimming hard hedges, the reciprocating shearing structure comprising:

[0022] The mounting housing has a removable cover plate at the top.

[0023] A fixed blade plate is connected to one end of the mounting shell and extends outward, and the edge of the fixed blade plate is provided with serrated cutters.

[0024] The movable shearing blade is slidably disposed within the mounting housing via a slide block and slide rail structure. The movable shearing blade is arranged parallel to the fixed blade plate, and the movable shearing blade has a serrated cutting edge.

[0025] A reciprocating assembly, disposed within the mounting housing, is used to convert the rotational motion of the motor output end into the linear reciprocating motion of the movable shearing blade.

[0026] Preferably, the reciprocating component includes:

[0027] The second insertion tube is detachably connected to the output end of the motor via a key and a keyway, and the second insertion tube is rotatably connected to the cover plate via a bearing;

[0028] A turntable, which is fixedly connected to the bottom end of the second insertion tube;

[0029] The connecting rod has one end hinged to the eccentric position of the turntable and the other end hinged to the slide block that drives the movable shearing blade.

[0030] Preferably, the top of the cover plate is fixed with two support plates, which are detachably connected to the bottom surface of the U-shaped seat by bolts.

[0031] The modular hedge trimmer head with adjustable trimming shape provided by this utility model has the following beneficial effects:

[0032] The adjustment mechanism controls the real-time lifting and lowering of the shearing mechanism during operation through the cooperation of the drive motor, threaded rod and guide rod, which facilitates the formation of complex hedge shapes such as wavy and curved surfaces, and performs pruning operations on hedges with complex shapes.

[0033] By setting up at least two interchangeable shearing mechanisms (such as a rope-swing shearing structure and a reciprocating shearing structure), staff can quickly change the shearing module according to the type of greenery to efficiently prune soft grasses and hard hedges, thus improving the overall applicability of the mechanism. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the reciprocating shear structure in this utility model;

[0037] Figure 3 This is a schematic diagram of the connection structure of the movable shearing blade, slide block, slide rail, and reciprocating assembly in this utility model;

[0038] Figure 4 This is an assembly drawing of the U-shaped seat and the rope-swing shearing structure in this utility model;

[0039] Figure 5 This is a schematic diagram of the structure of the first insertion tube, disc, hose, and flexible cutting component in this utility model;

[0040] Figure 6 This is a schematic diagram of the adjustment mechanism in this utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1-U-shaped base, 2-Motor, 3-Adjusting mechanism, 31-Adapter base, 32-Guide rod, 33-Through slot plate, 34-Drive component, 341-Drive motor, 342-Threaded rod, 35-Sliding block, 4-Rope-swinging shearing structure, 41-First insertion pipe, 42-Disc, 43-Hose, 44-Flexible cutting component, 5-Reciprocating shearing structure, 51-Mounting shell, 52-Cover plate, 53-Fixed blade plate, 54-Moving shearing blade, 55-Slide base, 56-Slide rail, 57-Reciprocating assembly, 571-Second insertion pipe, 572-Turntable, 573-Connecting rod, 58-Support plate. Detailed Implementation

[0043] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this embodiment, as Figure 1 and Figure 4As shown, a modular hedge trimmer head with adjustable trimming shape includes a U-shaped base 1; a motor 2, which is fixedly installed in the middle of the interior of the U-shaped base 1, with the output end of the motor 2 pointing vertically downward and penetrating the bottom surface of the U-shaped base 1; at least two cutting mechanisms, which are configured to be selectively installed below the U-shaped base 1 and detachably connected to the output end of the motor 2, sharing the motor 2 as a power source; and an adjustment mechanism 3 disposed above the U-shaped base 1, used to drive the U-shaped base 1, the motor 2 on it, and the selected cutting mechanism to perform integrated lifting and lowering movements.

[0047] Thus, through modular shearing mechanism design and adjustable height control, it can adapt to the pruning of different types of green plants and complex shapes; the U-shaped seat 1 is made of high-strength aluminum alloy material, the motor 2 is a high-torque DC brushless motor, which is fixedly connected to the U-shaped seat 1 by four high-strength bolts, and the output shaft end is machined with a standard keyway for reliable transmission with different shearing mechanisms.

[0048] In some embodiments, such as Figure 6 As shown, the adjustment mechanism 3 includes an adapter 31 for connecting to an external mobile device; at least one guide rod 32 fixedly mounted on the adapter 31; a through-slot plate 33 fixedly connected to one side of the U-shaped seat 1 and slidably sleeved on the outer wall of the guide rod 32; the driving component 34 includes a drive motor 341 fixedly connected to the adapter 31 and a threaded rod 342 driven to rotate by the drive motor 341; and a sliding block 35 threadedly connected to the threaded rod 342 and fixedly connected to the other side of the U-shaped seat 1.

[0049] Specifically, the drive motor 341 controls the rotation direction of the threaded rod 342 by reversing forward and reverse rotation, thereby driving the sliding block 35 to move along the axial direction of the threaded rod 342, so as to realize the smooth lifting and lowering of the U-shaped seat 1 and its components; the cooperation between the guide rod 32 and the through slot plate 33 ensures the stability during the lifting process and prevents swaying.

[0050] In some embodiments, the adjustment mechanism 3 is configured to: drive the U-shaped seat 1 to move up and down along the axis of the guide rod 32 and the threaded rod 342 via the drive motor 341 during the hedge trimming process, so as to adjust the working height of the cutting mechanism in real time, thereby trimming the hedge into a wavy or curved shape.

[0051] Specifically, the drive motor 341 is controlled by an external control system (such as a PLC or manual operation), which can adjust the height of the shearing mechanism in real time according to a preset shaping curve to continuously prune hedges with complex shapes. The drive motor 341 is a servo motor, which allows for adjustment of the lifting speed.

[0052] In other embodiments, the guide rods 32 can be set to two or more, symmetrically arranged on both sides of the threaded rod 342, to further enhance the stability of the lifting process; a position sensor can also be added to detect the lifting height in real time and feed it back to the control system to form a closed-loop control and improve the shaping and trimming accuracy.

[0053] In some embodiments, such as Figure 4 and Figure 5 As shown, the shearing mechanism includes a rope-type shearing structure 4 for trimming soft grasses. The rope-type shearing structure 4 includes: a first insertion tube 41, which is detachably sleeved on the vertically downward output end of the motor 2; a disc 42, which is fixedly connected to the outer periphery of the first insertion tube 41; at least one flexible tube 43, which is fixed to the bottom end of the disc 42; and a flexible cutting element 44, which passes through the flexible tube 43 and extends out of the flexible tube 43 at both ends.

[0054] Specifically, motor 2 drives the first insertion tube 41 and disc 42 to rotate at high speed. The flexible cutting element 44 is straightened under the action of centrifugal force and effectively cuts grass. The disc 42 is made of aluminum alloy to reduce rotational inertia. The hose 43 is made of wear-resistant nylon. The flexible cutting element 44 is made of high-strength composite nylon rope, and the exposed parts at both ends form the effective cutting length.

[0055] It should be noted that: the number of hoses 43 can be set to multiple as needed, and they can be evenly distributed in a circle to increase the cutting range and efficiency; the flexible cutting parts 44 can be made of high-strength nylon rope or steel wire rope, and the appropriate materials and specifications can be selected according to the different objects being cut.

[0056] In some embodiments, such as Figure 5 As shown, the first connector 41 is locked and fixed to the output end of the motor 2 by bolts arranged horizontally;

[0057] Specifically, the inner hole of the first insertion tube 41 is machined with a keyway that matches the output shaft of the motor 2, and the outer circle is provided with an annular groove for installing locking bolts; the locking bolts are internal hex bolts, which reliably lock the first insertion tube 41 to the motor output shaft by pressing.

[0058] In some embodiments, such as Figure 1 and Figure 2As shown, the shearing mechanism includes a reciprocating shearing structure 5 for trimming hard hedges. The reciprocating shearing structure 5 includes a mounting shell 51 with a removable cover plate 52 at the top; a fixed blade plate 53 connected to one end of the mounting shell 51 and extending outward, with serrated cutting edges; a movable shearing blade 54 slidably disposed within the mounting shell 51 via a slide block 55 and a slide rail 56, the movable shearing blade 54 being parallel to the fixed blade plate 53 and having serrated cutting edges; and a reciprocating assembly 57 disposed within the mounting shell 51 for converting the rotational motion of the motor 2 output into the linear reciprocating motion of the movable shearing blade 54.

[0059] Specifically, a sealing gasket is provided between the cover plate 52 and the mounting shell 51 to prevent plant debris from entering the shell and affecting the operation of the transmission components. The high-speed reciprocating motion of the movable shearing blade 54 relative to the fixed blade plate 53 effectively cuts the branches of hard hedges. The mounting shell 51 is made of cast aluminum and has a precisely machined guide rail mounting surface inside. Both the fixed blade plate 53 and the movable shearing blade 54 are made of spring steel, and the blade edge adopts a specially designed serrated shape with a serration angle of 55° and a tooth pitch of 8mm to ensure cutting efficiency.

[0060] In some embodiments, such as Figure 2 and Figure 3 As shown, the reciprocating assembly 57 includes a second insertion tube 571, which is detachably connected to the output end of the motor 2 via a key and a keyway, and is rotatably connected to the cover plate 52 via a bearing; a turntable 572, which is fixedly connected to the bottom end of the second insertion tube 571; and a connecting rod 573, one end of which is hinged to the eccentric position of the turntable 572, and the other end of which is hinged to the slide 55 that drives the movable shearing blade 54.

[0061] Specifically, motor 2 drives turntable 572 to rotate via second insertion pipe 571. Turntable 572 converts rotational motion into linear reciprocating motion of slide 55 via connecting rod 573, thereby driving movable shearing blade 54 to perform shearing operation. Second insertion pipe 571 is rotatably connected to cover plate 52 via deep groove ball bearing. Both ends of connecting rod 573 are equipped with spherical bearings, allowing a certain sway angle during movement.

[0062] In some embodiments, such as Figure 2 As shown, two support plates 58 are fixed to the top of the cover plate 52, and the support plates 58 are detachably connected to the bottom surface of the U-shaped seat 1 by bolts.

[0063] It should be noted that the design of connecting the two support plates 58 to the U-shaped seat 1 with bolts not only ensures the connection strength between the reciprocating shear structure 5 and the U-shaped seat 1, but also facilitates the quick disassembly and maintenance of the entire reciprocating shear structure 5; the support plates 58 have elongated holes, which allow for fine adjustments during installation.

[0064] The working principle of this application is illustrated below with a preferred embodiment:

[0065] First, connect the adapter 31 to an external mobile device (robotic arm or greening vehicle, etc.) and move the entire mechanism using the external mobile device;

[0066] When trimming hard hedges: Install the reciprocating shearing structure 5 and the output end of the motor 2. Place the mounting shell 51 and the cover plate 52 at the bottom of the U-shaped base 1. Use bolts to fix the support plate 58 and the U-shaped base 1. At the same time, insert the output end of the motor 2 into the keyway of the second insertion tube 571. Start the motor 2. The output end of the motor 2 drives the second insertion tube 571 to rotate in the cover plate 52. At the same time, the second insertion tube 571 drives the turntable 572 to rotate. The turntable 572 drives the slide block 55 to slide back and forth along the outer wall of the slide rail 56 through the connecting rod 573. During this process, the movable shearing blade 54 moves back and forth relative to the fixed blade plate 53. Thus, the movable shearing blade 54 and the fixed blade plate 53 cooperate to trim the hard hedge.

[0067] As the external mobile device moves the entire mechanism, the drive motor 341 is started. The drive motor 341 drives the threaded rod 342 to rotate. As the threaded rod 342 rotates, it drives the sliding block 35 to move vertically. The U-shaped seat 1, along with the sliding block 35, drives the through-slot plate 33 to move on the outer wall of the guide rod 32. By controlling the forward and reverse rotation of the drive motor 341 and coordinating with the movement of the mobile device, the wavy hedge surface is sheared.

[0068] When trimming soft grasses: Disassemble the reciprocating shearing structure 5 from the output end of the motor 2, separate the output end of the motor 2 from the second connector 571, insert the first connector 41 into the output end of the motor 2, and use bolts to fix the output end of the motor 2 and the first connector 41. Start the motor 2 to drive the disc 42 to rotate through the first connector 41. As the disc 42 rotates at high speed, it drives the flexible cutting element 44 in the hose 43 to rotate. The high-speed rotating flexible cutting element 44 cuts and trims the grass.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A modular hedge trimmer head with adjustable trimming shape, characterized in that, include: U-shaped seat (1); Motor (2), the motor (2) is fixedly installed in the middle of the U-shaped base (1), the output end of the motor (2) is vertically downward and penetrates the bottom surface of the U-shaped base (1); At least two shearing mechanisms are configured to be selectively mounted below the U-shaped base (1) and detachably connected to the output of the motor (2) to share the motor (2) as a power source; Adjustment mechanism (3), which is located above the U-shaped seat (1), is used to drive the U-shaped seat (1) and its motor (2) and the selected shearing mechanism to perform integrated lifting and lowering movements.

2. The modular hedge trimmer head with adjustable trimming shape according to claim 1, characterized in that, The adjustment mechanism (3) includes: Adapter (31) for connecting to external mobile devices; At least one guide rod (32) is fixedly mounted on the adapter (31); The through slot plate (33) is fixedly connected to one side of the U-shaped seat (1) and slidably sleeved on the outer wall of the guide rod (32); The driving component (34) includes a drive motor (341) fixedly connected to the adapter (31) and a threaded rod (342) driven to rotate by the drive motor (341). The sliding block (35) is threadedly connected to the threaded rod (342) and fixedly connected to the other side of the U-shaped seat (1).

3. The modular hedge trimmer head with adjustable trimming shape according to claim 2, characterized in that, The adjustment mechanism (3) is configured to: drive the U-shaped seat (1) to move up and down along the axis of the guide rod (32) and the threaded rod (342) during the hedge trimming process, so as to adjust the working height of the cutting mechanism in real time, thereby trimming the hedge into a wavy or curved shape.

4. The modular hedge trimmer head with adjustable trimming shape according to claim 1, characterized in that, The shearing mechanism includes a rope-swing shearing structure (4) for trimming soft grasses, the rope-swing shearing structure (4) comprising: The first insertion tube (41) is detachably fitted onto the vertically downward output end of the motor (2); The disc (42) is fixedly connected to the outer periphery of the first insertion tube (41); At least one flexible tube (43) is fixed to the bottom end of the disc (42); A flexible cutting element (44) is inserted into the hose (43) and extends out of the hose (43) at both ends.

5. The modular hedge trimmer head with adjustable trimming shape according to claim 4, characterized in that, The first connector (41) and the output end of the motor (2) are locked together by bolts arranged horizontally.

6. The modular hedge trimmer head with adjustable trimming shape according to claim 1, characterized in that, The shearing mechanism includes a reciprocating shearing structure (5) for trimming hard hedges, the reciprocating shearing structure (5) comprising: Mounting housing (51), with a removable cover plate (52) at its top. A fixed blade plate (53) is connected to one end of the mounting shell (51) and extends outward. The edge of the fixed blade plate (53) is provided with a serrated cutter. The movable shearing blade (54) is slidably disposed in the mounting housing (51) through the structure of the slide block (55) and the slide rail (56). The movable shearing blade (54) is arranged parallel to the fixed blade plate (53). The movable shearing blade (54) has a serrated cutting edge. A reciprocating assembly (57), which is disposed within the mounting housing (51), is used to convert the rotational motion of the output end of the motor (2) into the linear reciprocating motion of the movable shearing blade (54).

7. The modular hedge trimmer head with adjustable trimming shape according to claim 6, characterized in that, The reciprocating component (57) includes: The second connector (571) is detachably connected to the output end of the motor (2) by a key and a keyway, and the second connector (571) is rotatably connected to the cover plate (52) by a bearing; Turntable (572), which is fixedly connected to the bottom end of the second insertion tube (571); The connecting rod (573) is hinged at one end to the eccentric position of the turntable (572) and at the other end to the slide (55) that drives the movable shearing blade (54).

8. The modular hedge trimmer head with adjustable trimming shape according to claim 6, characterized in that, The top of the cover plate (52) is fixed with two support plates (58), which are detachably connected to the bottom surface of the U-shaped seat (1) by bolts.

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