Garden high branch saw

Abstract

The invention discloses a garden high branch saw. The garden high branch saw comprises a saw head assembly (1), a connecting rod assembly (2) and a handle assembly (3). The saw head assembly (1) comprises a machine shell, a driving motor (1.3), a transmission mechanism and a saw blade (1.4). The driving motor (1.3) is connected with the saw blade (1.4) through the transmission mechanism. The machine shell comprises a connecting pipe (1.2) and a machine shell body (1.1) which are made of engineering plastics and connected into a whole. The driving motor (1.3) and the transmission mechanism are installed inside the machine shell body (1.1), and the connecting pipe (1.2) is connected to the upper end of the connecting rod assembly (2) in a sleeved and locked mode. The axis of the machine shell body (1.1) and the axis of the connecting pipe (1.2) intersect to form an included angle. By means of the structure, the weight of the whole high branch saw is reduced, the vibration amplitude, transmitted to the handle assembly, of the vibration produced when a saw head works is greatly reduced, and the working stability of the high branch saw is guaranteed better.

Description

technical field [0001] The invention relates to the technical field of electric tools, in particular to a garden high branch saw. Background technique [0002] At present, in fruit tree cultivation and landscaping, high branches and branches are often pruned. The high branch saw in the prior art usually includes a saw head assembly, a connecting rod assembly and a handle assembly, and the two ends of the connecting rod assembly are respectively connected with the saw head assembly and the handle assembly. , tree branch pruning work. However, this garden high-branch saw has the following disadvantages: since the high-branch saw is a pruning work for high branches and branches, the distance between the saw head assembly and the handle assembly is relatively long, in other words, the length of the connecting rod assembly is long, These saw head assemblies and connecting rod assemblies are usually made of metal materials. Therefore, the overall weight of the high branch saw is...

AI Technical Summary

Problems solved by technology

But, there is following shortcoming in this kind of garden high-branch saw: because the high-branch saw is the work of pruning high branches and branches, the distance between the saw head assembly and the handle assembly is relatively long, in other words, the length of the connecting rod assembly is relatively long, And these saw head assembly, connecting rod assembly are made by metal material again usually, therefore, the weight of whole high-branch saw is heavier, and once the length of connecting rod assembly is longer, on the one hand, top saw head produces when working. The vibration of the connecting rod assembly will directly affect the connecting rod assembly and the handle assembly. The longer the connecting rod assembly is, the greater the vibration will be and the worse the working stability will be. , the working accuracy of the saw head cannot be guaranteed, and it is also difficult to control; therefore, in summary, the overall length of the garden high-branch saw in the prior art is relatively short, and the branches and branches of taller trees cannot be trimmed.

[0003] In addition, because the clutch transmission device of the high-branch saw in the prior art adopts gear transmission, and in order to protect the motor when subjected to external force, the gear is usually allowed to slip, so there will be a gap between the gear and the shearing part. Set the friction plate and the spring, in other words, the friction plate, the gear, the second friction plate and the spring are connected in sequence and maintain a certain axial pressure between them, so that the deceleration can be achieved through the friction between the friction plate and the spring However, the friction between the friction plate and the spring will cause the wear of the parts, so that the axial pressure between these parts will gradually decrease, so that the friction force will gradually decrease, and finally cause the pruning shears to be less affected. Slipping will also occur under the condition of external force, so that the pruning shears cannot work normally and reliably

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