Multi-nose electric tool

Abstract

The invention discloses a multi-nose electric tool which comprises a connecting plate (3), a motor output shaft (4), a spacing ring (5), a connector (6), a T-shaped sliding chute (7), a T-shaped sliding rail (8), a nose shell (9), a rubber sleeve (10), a transmission shaft (11), springs (12), stirring heads (13), embedded blocks (14), wedge blocks (15), push blocks (16), a positioning step (17), protrusion portions (18) and spacing grooves (19). The spacing ring (5) is enabled to rotate under cooperative action of the push blocks (16) and the wedge blocks (15); when the push blocks (16) penetrate the spacing ring (5), reverse sides of the push blocks (16) are abutted against bottom surfaces of the wedge blocks (15) to prevent a tool body from being separated from noses, and the purpose of fixation of the tool body and the noses is realized; compared with the prior art, the multi-nose electric tool adopts a connecting mechanism which is less prone to releasing during operation, high in connecting strength, good in stability and long in service life.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a multi-head electric tool. Background technique [0002] There are many electric tools on the market, such as: polishing machine, grinder, sander, gun drill, electric shovel, etc. Although these electric tools have different functions, their principles are mostly similar, and most of them have a body and a machine head. There is a drive motor inside, and the output shaft of the drive motor transmits power to the working components of the machine head through the transmission component, so that the working components rotate or vibrate, and realize polishing, polishing, sanding, curve cutting, drilling or shoveling and other related functions . In order to save costs, the relevant personnel designed a detachable connection between the head shell and the fuselage shell, and the user can install different heads on the fuselage according to the work needs, without the need to purchase ...

AI Technical Summary

Problems solved by technology

[0003] The two detachable connection structures disclosed above are not perfect. The first structure uses a steel ring to connect the fuselage and the machine head. The steel ring and the machine head of the fuselage are in line contact, and the contact area is small. Sometimes there is violent shaking, and the strength and stability of the steel ring lock are difficult to guarantee. In addition, the longer the steel ring is used, the smaller the locking force is, and the nose and the body may be disengaged during work, posing a safety hazard

The second connection mechanism seems to be stable, but it is not. The reason is that there must be a certain gap between the block and the slot due to installation requirements. These gaps will become larger and larger as the tool is used, and then the vibration of the machine head will increase. increase, which ultimately affects the normal use of the tool

[0004] To sum up, the existing connection structure between the fuselage and the machine head of the electric tool has the defects of easy disconnection during operation, low connection strength, poor stability, and short service life

Images