Garden cutting and pruning mechanism with high safety degree

Abstract

The invention provides a high-safety garden cutting and pruning mechanism, which solves the problems of poor branch pruning safety and the like, and comprises stationary fixtures arranged in pairs, the stationary fixtures are movably connected through an adapter assembly, and the adapter assembly is equipped with a damping assembly for buffering the relative movement of the stationary fixtures. A cutting assembly and a separating assembly are arranged between the fixing clamps. The device has the advantages of good trimming and cutting quality, high safety and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of garden pruning equipment, and in particular relates to a garden cutting and pruning mechanism with high safety. Background Art

[0002] Existing gardens usually use chainsaws for tree pruning. They are easy to carry, simple to operate, powerful, and can quickly cut tree branches. For branches at high places, handheld high-branch chainsaws and backpack high-branch chainsaws are usually used for processing, but in actual use, they are difficult for one person to operate and have certain risks. In addition, for trees with large branch diameters such as arbors, existing chainsaws cannot accurately control their cutting direction and are prone to deviation during the cutting process, resulting in uneven cross-section of the fracture, which affects the subsequent recovery of the tree's growth. The branches that fall after being cut are of large mass, making it inconvenient to control their falling direction, and cutting and pruning are limited by the surrounding environment and space.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a garden high-branch saw [202311295040.9], which includes a handle, a plurality of extension rods are connected to one end of the handle, a saw blade is installed on one end of the extension rod away from the handle, a mounting ring is installed on the outer wall of the end of the extension rod close to the saw blade, two connecting rods are rotatably connected to the outer wall of the mounting ring, a connecting rod is fixedly connected to one end of the connecting rod, the connecting rod is vertically arranged with the connecting rod, a connecting hook is fixedly connected to one end of the connecting rod, a connecting mechanism is provided at one end of the connecting hook for facilitating the operator to hook the connecting hook on the branch, and a control mechanism is provided between the mounting ring and the extension rod for controlling the sliding of the mounting ring on one end of the extension rod.

[0004] The above solution solves the problem of pruning high branches to a certain extent, but the solution still has many shortcomings, such as poor incision quality and inconvenient control of the direction of branch falling. Summary of the invention

[0005] The object of the present invention is to provide a garden cutting and pruning mechanism with good cutting quality, convenient operation and high safety in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-safety garden cutting and pruning mechanism, including fixed clamps arranged in pairs, the fixed clamps are movably connected through a switching assembly, the switching assembly is equipped with a damping assembly for buffering the relative movement of the fixed clamps, and a cutting assembly and a separation assembly are arranged between the fixed clamps.

[0007] In the above-mentioned high-safety garden cutting and pruning mechanism, the fixing fixture includes a symmetrically hinged clamping frame, the clamping frame has a clamping head in the shape of a semicircular arc plate, and a lock is connected between the ends of the clamping head, and a bite assembly is arranged inside the clamping head.

[0008] In the above-mentioned high-safety garden cutting and pruning mechanism, the bite assembly includes a bite bar installed on the inner side of the clamping head, the bite bar is in the shape of a semicircular arc and has bite teeth distributed on the inner side, a plurality of equidistantly arranged bite bars are arranged in the clamping head and the bite bars in another symmetrically arranged clamping head are arranged at intervals therefrom, the rotational connection position of the bite bar in one clamping head is close to the hinge of the clamping frame, and the rotational connection position of the bite bar in the other clamping head is far from the hinge of the clamping frame, and an bite drive assembly is installed between the bite bar and the clamping head.

[0009] In the above-mentioned high-safety garden cutting and pruning mechanism, the interlocking drive component includes a driving sleeve slidably mounted on the outside of the clamping head, the driving sleeve has a built-in interlocking drive motor, and the output end of the interlocking drive motor is meshed and transmitted with a driving rack arranged on the outside of the clamping head through a speed change gear set; the driving sleeve is movably connected to a first connecting rod, a limiting groove is provided on the first connecting rod, a limiting block is fixed on the clamping head and is slidably connected to the limiting groove, and the other end of the first connecting rod is slidably connected to the interlocking bar.

[0010] In the above-mentioned 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 is rotatably connected to the second adapter link, and the damping assembly is arranged at the rotatably connected position between the first adapter link and the second adapter link.

[0011] In the above-mentioned high-safety garden cutting and pruning mechanism, the damping assembly includes a damping shaft connected to the first transfer 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 the outer shell through a friction plate group, an adjusting knob for adjusting the pressure of the friction plate group is installed on the outer side of the outer shell, and the overrunning clutch outer shell is connected to the second transfer connecting rod.

[0012] In the above-mentioned high-safety garden cutting and pruning mechanism, the cutting assembly includes a cutting base fixed on one of the fixed clamps, the cutting base has a built-in cutting drive assembly, the cutting drive assembly is connected to a cutting rope, and a guide assembly connected to the cutting rope transmission is provided on the fixed clamp; the cutting assembly is symmetrically arranged relative to the fixed clamp.

[0013] In the above-mentioned high-safety garden cutting and pruning mechanism, the cutting drive assembly includes a driving ring body, the cutting rope is coiled on the outside of the driving ring body, a winding cylinder is rotatably installed on the inside of the driving ring body and the cutting rope is connected to the winding cylinder, a strip groove is opened on the driving ring body for the cutting rope to pass through, the driving ring body is connected to the cutting drive motor through a gear ring, and the winding cylinder is connected to the winding motor through a speed change gear set.

[0014] In the above-mentioned high-safety garden cutting and pruning mechanism, the guide assembly includes guide rollers arranged along the circumference of the fixing fixture, the guide rollers are transmission-connected to the cutting rope, and a protective cover covering the guide rollers and the cutting rope is provided on the fixing fixture.

[0015] In the above-mentioned high-safety garden cutting and pruning mechanism, the separation component includes an electric push rod installed on a fixed fixture, the telescopic end of the electric push rod presses on another fixed fixture, and the separation component and the adapter component are arranged in a central symmetric manner relative to the fixed fixture.

[0016] Compared with the existing technology, the advantages of the present invention are: the fixing clamp is equipped with a transfer assembly, which guides and controls the separation direction of the branch after the branch is cut, thereby improving the safety of tree pruning; the fixing clamp has a built-in bite assembly, which provides sufficient fixing force and can adapt to branches of different diameters; the cutting assembly adopts a rope saw structure, which has symmetrical and synchronous cutting to ensure that the fracture cross-section is flat, thereby reducing secondary damage to the tree. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0021] Figure 5 is a partial cross-sectional view of the bite assembly of the present invention;

[0022] Figure 6 is a schematic structural diagram of the adapter assembly of the present invention;

[0023] In the figure, there are a fixing clamp 1, a clamping frame 11, a clamping head 12, an adapter assembly 2, a first adapter link 21, a second adapter link 22, a damping assembly 3, a damping shaft 31, a friction plate group 32, a housing 33, an adjusting knob 34, a cutting assembly 4, a cutting base 41, a cutting rope 42, a driving ring body 43, a winding cylinder 44, a strip groove 45, a cutting drive motor 46, a winding motor 47, a guide roller 48, a protective cover 49, a separation assembly 5, an electric push rod 51, an engagement assembly 6, an engagement strip 61, an engagement tooth 62, a driving sleeve 63, an engagement drive motor 64, a driving rack 65, a first connecting rod 66, a limit groove 67, and a limit block 68. DETAILED DESCRIPTION

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

[0025] like Figure 1-6 As shown, a highly safe garden cutting and pruning mechanism includes a pair of fixed clamps 1, which are clamped and fixed at the part to be cut when in use. The fixed clamps 1 are movably connected through an adapter assembly 2, and the adapter assembly 2 is equipped with a damping assembly 3 for buffering the relative movement of the fixed clamps 1. When the tree is cut and separated, the fixed clamps 1 can guide the detached branches, and the damping assembly 3 performs damping and buffering to avoid falling and deviation, thereby improving the safety of garden pruning. A cutting assembly 4 and a separation assembly 5 are arranged between the fixed clamps 1, and the separation force is applied by the separation assembly 5 after the cutting is completed.

[0026] Specifically, different from the conventional clamp structure, the fixed clamp 1 in this embodiment includes a symmetrically hinged clamp frame 11, the clamp frame 11 has a clamp head 12 in the shape of a semicircular plate, and a lock is connected between the ends of the clamp head 12, and a bite assembly 6 is arranged inside the clamp head 12. When in use, the clamp head 12 is turned over and opened, and after closing, the lock is fixedly connected and positioned by the bite assembly 6, and the cutting assembly 4 is located between the fixed clamp 1 to realize cross-sectional cutting.

[0027] In order to improve the adaptability of the bite, the bite assembly 6 is arranged in a central symmetric manner, including a bite bar 61 installed on the inner side of the clamping head 12, the bite bar 61 is in a semicircular arc shape and has bite teeth 62 distributed on the inner side, a plurality of equidistantly arranged bite bars 61 are arranged in the clamping head 12, and the bite bars 61 in another symmetrically arranged clamping head 12 are arranged at intervals therefrom, the rotation connection position of the bite bar 61 in one clamping head 12 is close to the hinge of the clamping frame 11, and the rotation connection position of the bite bar 61 in the other clamping head 12 is far from the hinge of the clamping frame 11, and a bite drive assembly is installed between the bite bar 61 and the clamping head 12. When the bite drive assembly is started, the bite bar 61 approaches or moves away accordingly, and multiple groups of bite bars 61 are staggered and bite with the tree, and the bite teeth 62 on the inner side can effectively prevent them from being dislocated and disengaged.

[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 having an engagement drive motor 64 built therein, the output end of the engagement drive motor 64 meshing with a drive rack 65 disposed on the outside of the clamping head 12 through a speed change gear set, the speed change gear set providing sufficient driving torque to achieve low speed and high torque flipping of the clamping head 12; the drive sleeve 63 is movably connected with a first connecting rod 66, a limiting groove 67 is provided on the first connecting rod 66, a limiting block 68 slidably connected to the limiting groove 67 is fixed on the clamping head 12, and the other end of the first connecting rod 66 is slidably connected to the engagement bar 61. When the drive sleeve 63 slides along the circumference of the clamping head 12, the angle of the first connecting rod 66 changes and the clamping head 12 and the engagement bar 61 perform opening and closing movements. Each engagement bar 61 can be equipped with a plurality of first connecting rods 66, thereby improving the stability of its flipping structure.

[0029] Furthermore, the adapter assembly 2 realizes the combined connection of the fixing clamps 1 on the one hand, and maintains a safe space for the cutting assembly 4 between the fixing clamps 1 on the other hand, and specifically 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 another fixing clamp 1, the first adapter link 21 and the second adapter link 22 are rotationally connected, and the damping assembly 3 is arranged at the rotational 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 assembly 3 provides a damping force to reduce the flipping speed to avoid the impact of the branch clamped by the fixing clamp 1 falling. By adjusting the circumferential angle of the fixing clamp 1 relative to the branch, the circumferential orientation of the adapter assembly 2 is also adjusted accordingly, thereby controlling the swinging separation direction of the branch after cutting and separation, which is suitable for branch pruning needs in a narrow space.

[0030] In addition, the damping assembly 3 can be adaptively adjusted for trees of different specifications, and includes a damping shaft 31 connected to the first transfer link 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 the housing 33 through the friction plate group 32, and an adjusting knob 34 for adjusting the pressure of the friction plate group 32 is installed on the outer side of the housing 33, and the overrunning clutch housing 33 is connected to the second transfer link 22. The adjusting knob 34 is manually turned to increase or decrease the damping force to obtain the best separation drop rate. The overrunning clutch mainly meets the one-way flipping requirements of the damping shaft 31 and the housing 33, ensuring that the fixing fixture 1 can be quickly reset and slowly separated.

[0031] At the same time, the existing garden cutting using oil saws has a high cutting rate, but its cutting quality is highly dependent on the operator's experience, and there is a lack of protection during use, and the safety is poor. In order to overcome the above problems, the cutting assembly 4 in this embodiment 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, and a guide assembly connected to the cutting rope 42 is provided on the fixed clamp seat; the cutting assembly 4 is arranged symmetrically relative to the fixed clamp 1. The cutting blades are arranged on the cutting rope 42, and reciprocate under the drive of the cutting drive assembly to separate the branches. Moreover, the cutting assembly 4 in this embodiment adopts a symmetrical arrangement, which can work synchronously to improve the rope cutting rate.

[0032] It can be seen that the cutting drive assembly is adapted to the fixing fixture 1, including a driving ring body 43, a cutting rope 42 is coiled on the outside of the driving ring body 43, a winding cylinder 44 is rotatably installed on the inside of the driving ring body 43 and the cutting rope 42 is connected to the winding cylinder 44, a strip groove 45 is opened on the driving ring body 43 for the cutting rope 42 to pass through, the driving ring body 43 is connected to the cutting driving motor 46 through a gear ring, and the winding cylinder 44 is connected to the winding motor 47 through a speed change gear set. The driving ring body 43 provides reciprocating cutting force under the action of the cutting driving motor 46, and the winding motor 47 drives the winding cylinder 44 to store excess cutting rope 42 as the cutting rope 42 is fed, and is equipped with a tension sensor to ensure that the cutting rope 42 is always in a tensioned state. In addition, a fan is also equipped on the inside of the driving ring body 43 for local cooling to ensure its continuous cutting work is stable.

[0033] Obviously, the guide assembly protects the cutting rope 42, including guide rollers 48 arranged along the circumference of the fixing fixture 1, and the guide rollers 48 are connected to the cutting rope 42 by transmission, so that the cutting rope 42 is hidden inside the protective cover 49. The fixing fixture 1 is provided with a protective cover 49 covering the guide rollers 48 and the cutting rope 42, and the protective cover 49 is fixed to the fixing fixture 1.

[0034] Preferably, after the symmetrical rope cutting method is used to prune the branches, some wood still remains in the middle of the branch cross section, so the separation assembly 5 is used for mechanical pushing and separation. The separation assembly 5 includes an electric push rod 51 installed on the fixing fixture 1, and the telescopic end of the electric push rod 51 presses on another fixing fixture 1. The separation assembly 5 and the adapter assembly 2 are arranged symmetrically with respect to the fixing fixture 1.

[0035] To sum up, the principle of this embodiment is that the fixed clamps 1 arranged in pairs are sleeved on the branches, and the cutting components 4 arranged between them are cut by rope cutting. The detached branches are still engaged by one of the fixed clamps 1 and slowly fall along a fixed track under the joint 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 examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although the following terms are used more frequently in this article, such as the fixing fixture 1, the clamping frame 11, the clamping head 12, the transfer assembly 2, the first transfer link 21, the second transfer link 22, the damping assembly 3, the damping shaft 31, the friction plate group 32, the housing 33, the adjusting knob 34, the cutting assembly 4, the cutting base 41, the cutting rope 42, the driving ring body 43, the winding cylinder 44, the strip groove 45, the cutting drive motor 46, the winding motor 47, the guide roller 48, the protective cover 49, the separation assembly 5, the electric push rod 51, the bite assembly 6, the bite strip 61, the bite teeth 62, the driving sleeve 63, the bite drive motor 64, the driving rack 65, the first connecting rod 66, the limit groove 67, the limit block 68, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A highly safe garden cutting and pruning mechanism, comprising a pair of fixed clamps (1), characterized in that: The fixing clamps (1) are movably connected via a transfer assembly (2), the transfer assembly (2) is equipped with a damping assembly (3) for buffering the relative movement of the fixing clamps (1), and a cutting assembly (4) and a separating assembly (5) are arranged between the fixing clamps (1).

2. A highly safe garden cutting and pruning mechanism according to claim 1, characterized in that: The fixing fixture (1) comprises a symmetrically hinged clamping frame (11), the clamping frame (11) having a clamping head (12) in the shape of a semicircular plate, a lock buckle being connected between the ends of the clamping head (12), and a bite assembly (6) being arranged on the inner side of the clamping head (12).

3. A high-safety garden cutting and pruning mechanism according to claim 2, characterized in that: The bite assembly (6) includes a bite strip (61) installed on the inner side of the clamping head (12), the bite strip (61) is in the shape of a semicircular arc strip and has bite teeth (62) distributed on the inner side, the clamping head (12) is provided with a plurality of equidistantly arranged bite strips (61) and the bite strips (61) in another symmetrically arranged clamping head (12) are arranged at intervals therefrom, the rotational connection position of the bite strip (61) in one clamping head (12) is close to the hinge of the clamping frame (11), and the rotational connection position of the bite strip (61) in the other clamping head (12) is far from the hinge of the clamping frame (11), and an bite drive assembly is installed between the bite strip (61) and the clamping head (12).

4. A highly safe garden cutting and pruning mechanism according to claim 3, characterized in that: The engaging drive assembly comprises a driving sleeve (63) slidably mounted on the outside of the clamping head (12); the driving sleeve (63) has a built-in engaging drive motor (64); the output end of the engaging drive motor (64) is meshed and transmitted with a driving rack (65) arranged on the outside of the clamping head (12) through a speed change gear set; the driving sleeve (63) is movably connected with a first connecting rod (66); a limiting groove (67) is provided on the first connecting rod (66); a limiting block (68) slidably connected to the limiting groove (67) is fixed on the clamping head (12); the other end of the first connecting rod (66) is slidably connected to the engaging strip (61).

5. A high-safety garden cutting and pruning mechanism according to claim 1, characterized in that: The adapter assembly (2) comprises a first adapter link (21) connected to the end of a fixing fixture (1) and a second adapter link (22) fixed to the end of another fixing fixture (1), the first adapter link (21) and the second adapter link (22) being rotationally connected, and the damping assembly (3) is arranged at the rotationally connected position between the first adapter link (21) and the second adapter link (22).

6. A high-safety garden cutting and pruning mechanism according to claim 5, characterized in that: The damping assembly (3) comprises a damping shaft (31) connected to the first transfer connecting rod (21), an overrunning clutch is fixed on the damping shaft (31), an inner ring of the overrunning clutch is fixedly connected to the damping shaft (31) and an outer ring is connected to a housing (33) via a friction plate group (32), an adjusting knob (34) for adjusting the pressure of the friction plate group (32) is installed on the outer side of the housing (33), and the overrunning clutch housing (33) is connected to the second transfer connecting rod (22).

7. A highly safe garden cutting and pruning mechanism according to claim 1, characterized in that: The cutting assembly (4) comprises a cutting base (41) fixed on one of the fixing clamps (1), the cutting base (41) having a built-in cutting drive assembly, the cutting drive assembly being connected to a cutting rope (42), and the fixing clamp seat being provided with a guide assembly which is transmission-connected to the cutting rope (42); the cutting assembly (4) is symmetrically arranged relative to the fixing clamp (1).

8. A high-safety garden cutting and pruning mechanism according to claim 7, characterized in that: The cutting drive assembly comprises a driving ring body (43), the cutting rope (42) is coiled on the outside of the driving ring body (43), a winding cylinder (44) is rotatably mounted on the inside of the driving ring body (43) and the cutting rope (42) is connected to the winding cylinder (44), a strip groove (45) is provided on the driving ring body (43) for the cutting rope (42) to pass through, the driving ring body (43) is connected to the cutting driving motor (46) through a gear ring, and the winding cylinder (44) is connected to the winding motor (47) through a speed change gear set.

9. A highly safe garden cutting and pruning mechanism according to claim 8, characterized in that: The guide assembly comprises guide rollers (48) arranged along the circumference of the fixing fixture (1), the guide rollers (48) being transmission-connected to the cutting rope (42), and a protective cover (49) covering the guide rollers (48) and the cutting rope (42) is provided on the fixing fixture (1).

10. A highly safe garden cutting and pruning mechanism according to claim 1, characterized in that: The separation component (5) comprises an electric push rod (51) mounted on a fixing fixture (1), the telescopic end of the electric push rod (51) is pressed against another fixing fixture (1), and the separation component (5) and the adapter component (2) are arranged in a centrally symmetrical manner relative to the fixing fixture (1).

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