Garden saw for pruning

Abstract

The utility model discloses a garden saw for pruning, including outer pole, and the outer pole top end is connected with electric chain saw mechanism, and electric chain saw mechanism includes the shell, and the shell inner wall is fixedly connected with saw plate, and the saw plate first end projects the shell, the shell inside is close to the saw plate tail end and is provided with the sprocket, and the sprocket chain transmission is connected with saw chain, and saw chain sliding connection saw plate's outer edge, the outer pole sleeve connection has the inner pole, and the inner pole top end and bottom end all project the outer pole, and the inner pole top end is connected with the crook. The beneficial effects of the scheme can be known according to the narration of the above scheme, and the staff does not need to climb the ladder or support, and also can make electric chain saw mechanism cut the branch of high place, thereby improved the security, and cut in the first end of saw plate, so that the operator can push along the axis of the outer pole when cutting, and the problem of needing large torque when cutting far branch with saw plate side is avoided.

Description

Technical Field

[0001] This utility model relates to the field of garden maintenance, and in particular to a garden saw for pruning. Background Technology

[0002] Garden maintenance often requires pruning branches of trees or bamboo. Pruning branches that are low to the ground is relatively easy, but when there are branches that need to be removed that are high up, it is often necessary to use ladders or supports to climb them, which is laborious and dangerous.

[0003] Application number 202122162577.0 describes a high-altitude branch pruning hand saw for landscaping. By incorporating a connecting part and adjustment holes, the length of the handle can be adjusted by engaging the connecting part with the adjustment holes at different positions, making it easier for landscaping workers to prune branches at higher locations. However, due to the torque effect, the higher the branch, the longer the reaction force applied to the saw blade relative to the operator's hand lever arm. To ensure sufficient pressure from the saw blade on the branch, the operator needs to apply significant pressure with their arm, resulting in substantial physical exertion. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a garden saw for pruning. Workers can use the electric chainsaw mechanism to cut branches at heights without having to climb ladders or supports, thus improving safety. Cutting takes place at the front end of the saw blade, so the operator can simply push along the axis of the outer rod during cutting, avoiding the problem of requiring a large torque when using the side of the saw blade to cut distant branches.

[0005] To achieve the above objectives, this utility model provides a garden saw for pruning, including an outer rod, the top of which is connected to an electric chainsaw mechanism;

[0006] The outer rod is slidably sleeved with the inner rod, and the top and bottom ends of the inner rod extend out of the outer rod. A hook is connected to the top end of the inner rod.

[0007] Furthermore, a battery holder is connected to the bottom end of the outer rod, and a storage battery is provided in the battery holder. The storage battery is electrically connected to the electric chainsaw mechanism; the battery holder is provided with a switch for controlling the electric chainsaw mechanism.

[0008] Furthermore, the electric chainsaw mechanism includes a housing, the outer rod is fixedly connected to the housing, a saw blade is fixedly connected to the inner wall of the housing, and the first end of the saw blade extends out of the housing;

[0009] A sprocket is provided inside the outer casing near the tail end of the saw blade. The sprocket is connected to a saw chain via chain drive, and the saw chain is slidably connected to the outer edge of the saw blade.

[0010] The sprocket drive is connected to a motor, which is located outside the housing.

[0011] Furthermore, the width of the first end of the saw blade is greater than that of the last end, and the outer edge of the first end of the saw blade is an outward arc with a radius greater than the length of the first and last ends of the saw blade.

[0012] Furthermore, the outer casing is fixedly connected to the side of the top end of the outer rod.

[0013] Furthermore, the hook includes a transition section, a straight section, and an elbow connected in sequence. The transition section is connected to the top of the inner rod, the straight section is parallel to the inner rod, and the center of the bend is located on the extension line of the axis of the inner rod.

[0014] Furthermore, the length of the straight segment is greater than the diameter of the bend.

[0015] Furthermore, a handle is connected to the bottom end of the inner rod, and the handle is perpendicular to the inner rod.

[0016] The beneficial effects of this solution can be understood from the description of the solution above:

[0017] (1) After using the external pole, the staff can cut the branches at high places without climbing ladders or supports, thus improving safety;

[0018] (2) The battery is located at the bottom of the outer rod, which reduces the weight at the top of the outer rod while increasing the weight at the bottom, which is equivalent to setting a counterweight to balance the weight of the electric chainsaw mechanism.

[0019] (3) The first end of the saw blade is larger than the last end, so that the cutting is carried out at the first end of the saw blade. In this way, the operator can push along the axis of the outer rod when cutting, avoiding the problem of needing a large torque when cutting distant branches using the side of the saw blade.

[0020] (4) An outward arc is set at the beginning of the saw blade to relieve the feed stress at the turning point of the saw chain;

[0021] (5) The center of the bend is located on the extension line of the inner rod axis, so that when the bend is stretched or twisted, unnecessary shaking of the outer rod and inner rod is reduced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 for Figure 1 The right view.

[0024] Figure 3 This is a schematic diagram of the structure of the electric chainsaw mechanism of this utility model.

[0025] Figure 4 This is a structural diagram of the present invention in use.

[0026] In the diagram, 1. Outer rod; 2. Electric chainsaw mechanism; 21. Housing; 22. Saw blade; 23. Sprocket; 24. Saw chain; 25. Motor; 3. Battery holder; 4. Switch; 5. Inner rod; 6. Hook; 61. Transition section; 62. Straight section; 63. Elbow; 7. Handle; 8. Branch. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0028] like Figure 1 , 2 As shown, this embodiment is a garden saw for pruning, including an outer rod 1. An electric chainsaw mechanism 2 is connected to the top of the outer rod 1. The electric chainsaw mechanism 2 includes a housing 21, which is fixedly connected to the side of the top of the outer rod 1. A saw blade 22 is fixedly connected to the inner wall of the housing 21, with the first end of the saw blade 22 extending out of the housing 21. A battery holder 3 is connected to the bottom of the outer rod 1, and a battery is installed in the battery holder 3. The battery is electrically connected to the electric chainsaw mechanism 2. The battery holder 3 is equipped with a switch 4 for controlling the electric chainsaw mechanism 2.

[0029] An inner rod 5 is slidably sleeved onto an outer rod 1. The top and bottom ends of the inner rod 5 extend beyond the outer rod 1. A hook 6 is connected to the top of the inner rod 5. The hook 6 comprises a transition section 61, a straight section 62, and an elbow 63 connected in sequence. The transition section 61 connects to the top of the inner rod 5. The straight section 62 is parallel to the inner rod 5. The center of curvature of the elbow 63 is located on the extension of the axis of the inner rod 5. The length of the straight section 62 is greater than the diameter of the elbow 63. A handle 7 is connected to the bottom of the inner rod 5, and the handle 7 is perpendicular to the inner rod 5.

[0030] like Figure 3 As shown, a sprocket 23 is located inside the outer casing 21 near the tail end of the saw blade 22. The sprocket 23 is connected to a saw chain 24 via chain drive, and the saw chain 24 is slidably connected to the outer edge of the saw blade 22. A motor 25 is also connected to the sprocket 23 via drive, and the motor 25 is located outside the outer casing 21. The width of the saw blade 22 at its head end is greater than that at its tail end, and the outer edge of the saw blade 22 at its head end is an outward arc with a radius greater than the length of the saw blade 22 at both ends.

[0031] like Figure 4As shown, when using the chain saw, first manipulate the inner rod 5 to extend the hook 6 from the top of the electric chainsaw mechanism 2, and use the hook 6 to hook the branch 8 to be cut. Then rotate the outer rod 1 around the axis of the inner rod 5 so that the saw blade 22 is aligned with the root of the branch 8 to be cut. Turn on the switch 4, hold the handle 7 of the inner rod 5 with one hand, and hold the outer rod 1 with the other hand and push it upward along the axis of the inner rod 5. The saw chain 24 will then cut the root of the branch 8. To avoid sawdust getting into your eyes, it is recommended to wear a mesh cap and safety glasses during operation.

[0032] The technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A garden saw for pruning, characterized in that, Includes an outer rod (1), the top of which is connected to an electric chainsaw mechanism (2); The outer rod (1) is slidably sleeved with the inner rod (5), and the top and bottom ends of the inner rod (5) extend out of the outer rod (1). The top end of the inner rod (5) is connected to a hook (6).

2. A garden saw for pruning according to claim 1, characterized in that, The bottom end of the outer rod (1) is connected to a battery holder (3), the battery holder (3) is provided with a storage battery, and the storage battery is electrically connected to the electric chainsaw mechanism (2); the battery holder (3) is provided with a switch (4) for controlling the electric chainsaw mechanism (2).

3. A garden saw for pruning according to claim 1, characterized in that, The electric chainsaw mechanism (2) includes a housing (21), the outer rod (1) is fixedly connected to the housing (21), and a saw blade (22) is fixedly connected to the inner wall of the housing (21), with the first end of the saw blade (22) extending out of the housing (21). Inside the outer casing (21), near the tail end of the saw blade (22), a sprocket (23) is provided. The sprocket (23) is connected to a saw chain (24) via chain drive. The saw chain (24) is slidably connected to the outer edge of the saw blade (22). The sprocket (23) is connected to a motor (25), which is located outside the housing (21).

4. A garden saw for pruning according to claim 3, characterized in that, The width of the first end of the saw blade (22) is greater than that of the last end, and the outer edge of the first end of the saw blade (22) is an outward arc with a radius greater than the length of the first and last ends of the saw blade (22).

5. A garden saw for pruning according to claim 3, characterized in that, The outer shell (21) is fixedly connected to the side of the top of the outer rod (1).

6. A garden saw for pruning according to claim 1, characterized in that, The hook (6) includes a transition section (61), a straight section (62) and an elbow (63) connected in sequence. The transition section (61) is connected to the top of the inner rod (5). The straight section (62) is parallel to the inner rod (5). The center of the bend (63) is located on the extension line of the axis of the inner rod (5).

7. A garden saw for pruning according to claim 6, characterized in that, The length of the straight segment (62) is greater than the diameter of the elbow (63).

8. A garden saw for pruning according to claim 1, characterized in that, The bottom end of the inner rod (5) is connected to a handle (7), and the handle (7) is perpendicular to the inner rod (5).

Images