Extension tube for vacuum cleaner

Abstract

The invention discloses an extension tube for a vacuum cleaner, which belongs to the field of electrical appliances and solves the problem that the extension tube has a large influence on the inner tube when the electric wire is installed. The technical solution for solving the problem mainly includes an inner tube, an outer tube and an electric wire, and the outer tube is sleeved on the outside of the inner tube. The two ends of the inner pipe are respectively provided with a first connecting head and a second connecting head, the first connecting head includes a first communicating hole connected to the inner pipe, the second connecting head includes a second connecting hole connected to the inner pipe, and the second connecting head includes a connecting hole connected to the inner pipe. The first connector and the second connector fix the outer tube so that a routing channel for the power supply line is formed between the outer tube and the inner tube. The first connector is provided with a first terminal, and the second connector is provided with a second terminal. One end of the wire is connected to the first terminal, and the other end is connected to the second terminal. The invention is mainly used to facilitate the assembly of the extension tube and reduce the influence of setting electric wires on the inner tube.

Description

technical field [0001] The invention relates to electrical appliances, in particular to an extension tube for a vacuum cleaner. Background technique [0002] Most of the existing vacuum cleaners are equipped with extension tubes for the convenience of users. When cleaning the ground or high places, the extension tubes can be connected between the main body of the vacuum cleaner and the suction head of the vacuum cleaner to increase the working radius of the vacuum cleaner. Since most of the suction heads of existing vacuum cleaners are also provided with a motor driving the rolling brush, the main body of the vacuum cleaner needs to supply power to the motor. After connecting the extension tube, the motor needs to be connected to the power supply through the extension tube. [0003] In the prior art, the axial through hole for the power supply line is generally formed inside the extension tube. From the perspective of the cross section, the axial through hole will occupy th...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the axial through hole for the power supply line is generally formed inside the extension tube. From the perspective of the cross section, the axial through hole will occupy the inner hole space inside the extension tube for air flow, resulting in the shape of the inner hole of the extension tube It becomes irregular, and the garbage is easily affected when it passes through the extension tube, and it is easy to form a hygienic dead angle on the partition separating the axial through hole and the inner hole, which further affects the dust collection effect

In addition, most of the existing extension rods are integrally injection-molded with plastic parts. Due to the need for injection-molded routing channels, molding is difficult, and the obtained extension rods are heavy in weight, poor in appearance, and poor in overall user experience.

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