High-safety garden cutting and trimming mechanism

Abstract

The application provides a high-safety garden cutting and pruning mechanism, which solves the problem of poor safety of branch pruning and the like, and comprises a pair of fixed clamps which are movably connected through an adapter assembly, the adapter assembly is provided with a damping assembly for buffering the relative movement of the fixed clamps, and a cutting assembly and a separating assembly are arranged between the fixed clamps. The application has the advantages of good pruning and cutting quality and high safety.

Description

Technical Field

[0001] This invention belongs to the technical field of garden pruning equipment, specifically relating to a high-safety garden cutting and pruning mechanism. Background Technology

[0002] Existing landscaping methods typically employ chainsaws for tree pruning. These are portable, easy to operate, and powerful, enabling rapid cutting of tree branches. For higher branches, handheld and backpack chainsaws are commonly used, but in practice, single-person operation is difficult and poses certain risks. Furthermore, for trees with large branches, such as arbor trees, existing chainsaws cannot accurately control the cutting direction, easily deviating during the cut and resulting in uneven cut surfaces, hindering subsequent tree growth. The large weight of the felled branches also makes controlling their trajectory difficult, and pruning is constrained by the surrounding space.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a garden high-branch saw [202311295040.9], which includes a handle, several extension rods connected to one end of the handle, a saw blade installed at the end of the extension rod away from the handle, an installation ring installed on the outer wall of the extension rod near the saw blade, two connecting rods rotatably connected to the outer wall of the installation ring, a connecting rod fixedly connected to one end of the connecting rod, the connecting rod being perpendicular to the connecting rod, a connecting hook fixedly connected to one end of the connecting rod, a connecting mechanism for the operator to hook the connecting hook onto the tree branch at one end of the connecting hook, and a control mechanism for controlling the sliding of the installation ring on one end of the extension rod between the installation ring and the extension rod.

[0004] The above solution has solved the problem of pruning branches at high altitudes to some extent, but it still has many shortcomings, such as poor cut quality and difficulty in controlling the direction of branch fall. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a garden cutting and pruning mechanism with high safety, good cutting quality, and convenient operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-safety garden cutting and pruning mechanism, comprising a pair of fixed clamps, the fixed clamps being movably connected by a transition component, the transition component being equipped with a damping component to buffer the relative movement of the fixed clamps, and a cutting component and a separating component being provided between the fixed clamps.

[0007] In the aforementioned high-safety garden cutting and pruning mechanism, the fixing clamp includes a symmetrically hinged clamping frame, the clamping frame having a clamping head in the shape of a semi-circular plate and a locking buckle connecting the ends of the clamping head, and an engagement component provided on the inner side of the clamping head.

[0008] In the aforementioned high-safety garden cutting and pruning mechanism, the biting assembly includes a biting strip installed inside the clamping head. The biting strip is semi-circular and has biting teeth distributed on its inner side. Multiple equally spaced biting strips are provided inside the clamping head, and biting strips in another symmetrically arranged clamping head are spaced apart from them. The rotational connection position of the biting strip in one clamping head is close to the hinge of the clamping frame, and the rotational connection position of the biting strip in the other clamping head is far away from the hinge of the clamping frame. A biting drive assembly is installed between the biting strip and the clamping head.

[0009] In the aforementioned high-safety garden cutting and pruning mechanism, the biting drive assembly includes a drive sleeve slidably mounted on the outside of the clamping head. The drive sleeve has a built-in biting drive motor. The output end of the biting drive motor meshes with a drive rack located on the outside of the clamping head through a speed-changing gear set. The drive sleeve is movably connected to a first connecting rod. A limit groove is opened on the first connecting rod. A limit block is fixed on the clamping head and slidably connected to the limit groove. The other end of the first connecting rod is slidably connected to the biting strip.

[0010] In the aforementioned high-safety garden cutting and pruning mechanism, the adapter assembly includes a first adapter link connected to the end of a fixed clamp and a second adapter link fixed to the end of another fixed clamp. The first adapter link and the second adapter link are rotatably connected, and a damping assembly is disposed at the rotatable connection between the first adapter link and the second adapter link.

[0011] In the aforementioned high-safety garden cutting and pruning mechanism, the damping component includes a damping shaft connected to a first connecting rod. An overrunning clutch is fixed on the damping shaft. The inner ring of the overrunning clutch is fixedly connected to the damping shaft, and the outer ring is connected to a housing through a friction plate assembly. An adjustment knob for adjusting the pressure of the friction plate assembly is installed on the outside of the housing. The housing of the overrunning clutch is connected to a second connecting rod.

[0012] In the aforementioned high-safety garden cutting and pruning mechanism, the cutting component includes a cutting base fixed on one of the fixed clamps, a cutting drive component built into the cutting base, a cutting rope connected to the cutting drive component, and a guide component that is connected to the cutting rope for transmission on the fixed clamp; the cutting component is symmetrically arranged relative to the fixed clamp.

[0013] In the aforementioned high-safety garden cutting and pruning mechanism, the cutting drive assembly includes a drive ring body, a cutting rope coiled around the outside of the drive ring body, a take-up drum body rotatably mounted inside the drive ring body and the cutting rope connected to the take-up drum body, a strip groove for the cutting rope to pass through on the drive ring body, the drive ring body being connected to the cutting drive motor via a gear ring, and the take-up drum body being connected to the take-up motor via a speed-changing gear set.

[0014] In the aforementioned high-safety garden cutting and pruning mechanism, the guiding component includes guide rollers arranged circumferentially along the fixed clamp. The guide rollers are connected to the cutting rope via a transmission, and the fixed clamp is provided with a protective cover that covers the guide rollers and the cutting rope.

[0015] In the aforementioned high-safety garden cutting and pruning mechanism, the separation component includes an electric push rod mounted on a fixed clamp. The telescopic end of the electric push rod presses against another fixed clamp. The separation component and the adapter component are arranged in a centrally symmetrical manner relative to the fixed clamp.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the fixing clamp is equipped with an adapter component, which guides and controls the separation direction after the branch is cut, thereby improving the safety of tree pruning; the fixing clamp has a built-in interlocking component, which provides sufficient fixing force while adapting to branches of different diameters; the cutting component adopts a wire saw structure, which cuts symmetrically and synchronously, ensuring a flat cut surface and reducing secondary damage to the tree. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is another structural schematic diagram of the present invention;

[0020] Figure 4 This is a cross-sectional view of the cutting component of the present invention;

[0021] Figure 5 This is a partial cross-sectional view of the occlusal component of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the adapter component of the present invention;

[0023] In the figure, the components are: 1. Fixing clamp; 11. Clamping frame; 12. Clamping head; 2. Adapter assembly; 21. First adapter link; 22. Second adapter link; 3. Damping assembly; 31. Damping shaft; 32. Friction plate assembly; 33. Housing; 34. Adjustment knob; 4. Cutting assembly; 41. Cutting base; 42. Cutting rope; 43. Drive ring; 44. Rewinding drum; 45. Strip groove; 46. Cutting drive motor; 47. Rewinding motor; 48. Guide roller; 49. Protective cover; 5. Separation assembly; 51. Electric push rod; 6. Engaging assembly; 6. Engaging strip; 62. Engaging teeth; 63. Drive sleeve; 64. Engaging drive motor; 65. Drive rack; 66. First link; 67. Limiting groove; 68. Limiting block. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-6 As shown, a high-safety garden cutting and pruning mechanism includes a pair of fixed clamps 1, which are clamped and fixed to the part to be cut during use. The fixed clamps 1 are movably connected via an adapter component 2. The adapter component 2 is equipped with a damping component 3 to buffer the relative movement of the fixed clamps 1. After the tree is cut and separated, the fixed clamps 1 can guide the detached branches, and the damping component 3 provides damping and buffering to prevent them from falling or deviating, thereby improving the safety of garden pruning. A cutting component 4 and a separating component 5 are arranged between the fixed clamps 1. After cutting, the separating component 5 applies a separating force.

[0026] Specifically, unlike conventional clamp structures, the fixing clamp 1 in this embodiment includes a symmetrically hinged clamping frame 11. The clamping frame 11 has a clamping head 12 in the shape of a semi-circular arc plate, and a latch is connected between the ends of the clamping head 12. An engagement component 6 is provided on the inner side of the clamping head 12. In use, the clamping head 12 is flipped open, and after it closes, the latch is fixedly connected and positioned by the engagement component 6. The cutting component 4 is located between the fixing clamps 1 to achieve cross-sectional cutting.

[0027] In detail, to improve bite adaptability, the bite assembly 6 is centrally symmetrically arranged, including bite strips 61 installed inside the clamping head 12. The bite strips 61 are semi-circular arc-shaped and have bite teeth 62 distributed on their inner sides. Multiple bite strips 61 are arranged at equal intervals inside the clamping head 12, and bite strips 61 in another symmetrically arranged clamping head 12 are arranged at intervals with them. The rotational connection position of the bite strips 61 in one clamping head 12 is close to the hinge of the clamping frame 11, and the rotational connection position of the bite strips 61 in the other clamping head 12 is far away from the hinge of the clamping frame 11. A bite drive assembly is installed between the bite strips 61 and the clamping head 12. When the bite drive assembly is activated, the bite strips 61 move closer or further away, and multiple sets of bite strips 61 interlock and bite the tree. The bite teeth 62 on the inner sides can effectively prevent them from misaligning and disengaging.

[0028] Furthermore, the engagement drive assembly is preferably electrically driven, including a drive sleeve 63 slidably mounted on the outside of the clamping head 12. The drive sleeve 63 houses an engagement drive motor 64, the output of which meshes with a drive rack 65 located on the outside of the clamping head 12 via a gear set. The gear set provides sufficient driving torque to achieve low-speed, high-torque rotation of the clamping head 12. A first connecting rod 66 is movably connected to the drive sleeve 63. A limit groove 67 is formed on the first connecting rod 66, and a limit block 68 is fixed on the clamping head 12 and slidably connected to the limit groove 67. The other end of the first connecting rod 66 is slidably connected to the engagement bar 61. When the drive sleeve 63 slides circumferentially along the clamping head 12, the included angle of the first connecting rod 66 changes, causing the clamping head 12 and the engagement bar 61 to open and close. Each engagement bar 61 can be equipped with multiple first connecting rods 66, thereby improving the stability of its rotation structure.

[0029] Furthermore, the adapter component 2, on the one hand, enables the combined connection of the fixing clamps 1, and on the other hand, maintains a safe space between the fixing clamps 1 for the cutting component 4. Specifically, it includes a first adapter link 21 connected to the end of the fixing clamp 1 and a second adapter link 22 fixed to the end of the other fixing clamp 1. The first adapter link 21 and the second adapter link 22 are rotatably connected, and the damping component 3 is located at the rotatable connection between the first adapter link 21 and the second adapter link 22. When the first adapter link 21 and the second adapter link 22 flip, the damping component 3 provides damping force, reducing the flipping speed and preventing the branches held by the fixing clamps 1 from falling and impacting the branches. By adjusting the circumferential angle of the fixing clamps 1 relative to the branches, the circumferential orientation of the adapter component 2 is also adjusted accordingly, thereby controlling the swinging and separation direction of the branches after cutting and separation, which is suitable for the needs of branch pruning in confined spaces.

[0030] In addition, the damping component 3 can be adapted to different sizes of trees. It includes a damping shaft 31 connected to the first connecting rod 21, an overrunning clutch fixed to the damping shaft 31, an inner ring of the overrunning clutch fixedly connected to the damping shaft 31, and an outer ring connected to a housing 33 via a friction plate assembly 32. An adjusting knob 34 for adjusting the pressure of the friction plate assembly 32 is installed on the outside of the housing 33. The overrunning clutch housing 33 is connected to the second connecting rod 22. The adjusting knob 34 is rotated manually to increase or decrease the damping force, thereby obtaining the optimal separation and falling rate. The overrunning clutch primarily meets the unidirectional rotation requirements of the damping shaft 31 and the housing 33, ensuring that the fixing clamp 1 can quickly reset and slowly separate.

[0031] Meanwhile, existing garden cutting methods using chainsaws offer high cutting speeds, but their cutting quality is highly dependent on operator experience, and they lack protective measures, resulting in poor safety. To overcome these problems, the cutting assembly 4 in this embodiment includes a cutting base 41 fixed to one of the clamps 1. The cutting base 41 has a built-in cutting drive assembly connected to a cutting rope 42. The clamp is equipped with a guide assembly that is drive-connected to the cutting rope 42. The cutting assembly 4 is symmetrically arranged relative to the clamp 1. Cutting blades are arranged on the cutting rope 42, and the cutting drive assembly drives the rope to reciprocate, achieving branch separation. Furthermore, the symmetrical arrangement of the cutting assembly 4 in this embodiment allows for synchronous operation, increasing the rope cutting speed.

[0032] As can be seen, the cutting drive assembly is adapted to the fixed clamp 1, including a drive ring 43, with the cutting rope 42 coiled around the outside of the drive ring 43. A winding drum 44 is rotatably mounted inside the drive ring 43, and the cutting rope 42 is connected to the winding drum 44. The drive ring 43 has a slot 45 for the cutting rope 42 to pass through. The drive ring 43 is connected to the cutting drive motor 46 via a gear ring, and the winding drum 44 is connected to the winding motor 47 via a gear set. The drive ring 43 provides reciprocating cutting force under the action of the cutting drive motor 46. The winding motor 47 drives the winding drum 44 to collect excess cutting rope 42 as the cutting rope 42 is fed in. It is equipped with a tension sensor to ensure that the cutting rope 42 is always taut. In addition, a fan is also equipped inside the drive ring 43 for local cooling to ensure stable continuous cutting operation.

[0033] Clearly, the guide assembly protects the cutting rope 42 by including guide rollers 48 arranged circumferentially along the fixing clamp 1. The guide rollers 48 are drive-connected to the cutting rope 42, thereby concealing the cutting rope 42 inside the protective cover 49. The fixing clamp 1 is provided with a protective cover 49 that covers the guide rollers 48 and the cutting rope 42, and the protective cover 49 is fixed to the fixing clamp 1.

[0034] Preferably, after pruning branches using the aforementioned symmetrical rope cutting method, some wood remains in the middle of the branch cross-section. Therefore, a separation component 5 is used for mechanical separation. The separation component 5 includes an electric push rod 51 mounted on a fixed clamp 1. The telescopic end of the electric push rod 51 presses against another fixed clamp 1. The separation component 5 and the adapter component 2 are arranged symmetrically with respect to the fixed clamp 1.

[0035] In summary, the principle of this embodiment is as follows: the fixed clamps 1 arranged in pairs are fitted onto the tree branches, and the cutting component 4 set between them is cut off by rope cutting. The detached tree branches are still held by one of the fixed clamps 1 and fall slowly along a fixed trajectory under the combined action of the adapter component 2 and the damping component 3, thereby improving the safety of tree pruning.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0037] Although this document frequently uses terms such as fixing fixture 1, clamping frame 11, clamping head 12, adapter assembly 2, first adapter link 21, second adapter link 22, damping assembly 3, damping shaft 31, friction plate assembly 32, housing 33, adjusting knob 34, cutting assembly 4, cutting base 41, cutting rope 42, drive ring 43, winding drum 44, strip groove 45, cutting drive motor 46, winding motor 47, guide roller 48, protective cover 49, separation assembly 5, electric push rod 51, biting assembly 6, biting strip 61, biting teeth 62, drive sliding sleeve 63, biting drive motor 64, drive rack 65, first connecting rod 66, limiting groove 67, and limiting block 68, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A high-safety garden cutting and pruning mechanism, comprising a pair of fixed clamps (1), characterized in that, The fixed clamp (1) is movably connected via a transition assembly (2). The transition assembly (2) is equipped with a damping assembly (3) to buffer the relative movement of the fixed clamp (1). A cutting assembly (4) and a separation assembly (5) are provided between the fixed clamps (1). The transition assembly (2) includes a first transition link (21) connected to the end of the fixed clamp (1) and a second transition link (22) fixed to the end of another fixed clamp (1). The first transition link (21) and the second transition link (22) are rotatably connected. The damping assembly (3) is provided in the first... The connecting rod (21) and the second connecting rod (22) are rotatably connected; the damping assembly (3) includes a damping shaft (31) connected to the first connecting rod (21), an overrunning clutch is fixed on the damping shaft (31), the inner ring of the overrunning clutch is fixedly connected to the damping shaft (31), and the outer ring is connected to a housing (33) through a friction plate assembly (32). An adjusting knob (34) for adjusting the pressure of the friction plate assembly (32) is installed on the outside of the housing (33), and the housing (33) is connected to the second connecting rod (22); the fixing clamp (1) includes a symmetrically hinged clamping frame. (11) The clamping frame (11) has a clamping head (12) in the shape of a semi-circular arc plate and a locking buckle is connected between the ends of the clamping head (12). The clamping head (12) is provided with a biting component (6) on its inner side. The biting component (6) includes a biting strip (61) installed on the inner side of the clamping head (12). The biting strip (61) is in the shape of a semi-circular arc and has biting teeth (62) distributed on its inner side. The clamping head (12) is provided with a plurality of equally spaced biting strips (61) and the biting strips (61) in another symmetrically arranged clamping head (12) are spaced apart from it. The rotating connection position of the biting strip (61) in the clamping head (12) is close to the hinge of the clamping frame (11), and the rotating connection position of the biting strip (61) in the other clamping head (12) is far away from the hinge of the clamping frame (11). A biting drive assembly is installed between the biting strip (61) and the clamping head (12). The separating assembly (5) includes an electric push rod (51) installed on the fixed clamp (1). The telescopic end of the electric push rod (51) presses against the other fixed clamp (1). The separating assembly (5) and the transfer assembly (2) are arranged in a centrally symmetrical manner relative to the fixed clamp (1).

2. The high-safety garden cutting and pruning mechanism according to claim 1, characterized in that, The biting drive assembly includes a drive sleeve (63) slidably mounted on the outside of the clamping head (12). The drive sleeve (63) has a built-in biting drive motor (64). The output end of the biting drive motor (64) meshes with a drive rack (65) set on the outside of the clamping head (12) through a speed-changing gear set. The drive sleeve (63) is movably connected to a first connecting rod (66). A limit groove (67) is opened on the first connecting rod (66). A limit block (68) is fixed on the clamping head (12) and slidably connected to the limit groove (67). The other end of the first connecting rod (66) is slidably connected to the biting bar (61).

3. The high-safety garden cutting and pruning mechanism according to claim 1, characterized in that, The cutting assembly (4) includes a cutting base (41) fixed on one of the fixed clamps (1). The cutting base (41) has a built-in cutting drive assembly. The cutting drive assembly is connected to a cutting rope (42). The fixed clamp (1) is provided with a guide assembly that is connected to the cutting rope (42) for transmission. The cutting rope (42) is provided in two sets and is symmetrically arranged relative to the axial central axis of the fixed clamp (1).

4. A high-safety garden cutting and pruning mechanism according to claim 3, characterized in that, The cutting drive assembly includes a drive ring (43), the cutting rope (42) is coiled around the outside of the drive ring (43), a take-up drum (44) is rotatably mounted on the inside of the drive ring (43) and the cutting rope (42) is connected to the take-up drum (44), the drive ring (43) has a strip groove (45) for the cutting rope (42) to pass through, the drive ring (43) is connected to the cutting drive motor (46) through a gear ring, and the take-up drum (44) is connected to the take-up motor (47) through a speed change gear set.

5. A high-safety garden cutting and pruning mechanism according to claim 4, characterized in that, The guiding assembly includes guide rollers (48) arranged circumferentially along the fixed clamp (1), the guide rollers (48) being connected to the cutting rope (42) in a transmission manner, and the fixed clamp (1) being provided with a protective cover (49) covering the guide rollers (48) and the cutting rope (42).

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