Waterproof and dustproof sealing structure and angle grinder

Abstract

The utility model discloses a waterproof dustproof sealing structure, including shell, first pivot and second pivot, first pivot with second pivot all set up in the shell, first pivot is cooperated together with second pivot, still include first skeleton oil seal, second skeleton oil seal and third skeleton oil seal, first skeleton oil seal, second skeleton oil seal and third skeleton oil seal all set up in the shell, first skeleton oil seal with first pivot rotatory seal cooperation together, second skeleton oil seal and third skeleton oil seal with second pivot rotatory seal cooperation together. The application also discloses angle grinder including above -mentioned waterproof dustproof sealing structure.

Claims

1. A waterproof and dustproof sealing structure, comprising a housing, a first rotating shaft, and a second rotating shaft, wherein the first rotating shaft and the second rotating shaft are both disposed within the housing, and the first rotating shaft and the second rotating shaft are coupled together, characterized in that, It also includes a first skeleton oil seal, a second skeleton oil seal, and a third skeleton oil seal. The first skeleton oil seal, the second skeleton oil seal, and the third skeleton oil seal are all disposed inside the housing. The first skeleton oil seal is rotatably sealed together with the first rotating shaft, and the second skeleton oil seal and the third skeleton oil seal are rotatably sealed together with the second rotating shaft.

2. The waterproof and dustproof sealing structure according to claim 1, characterized in that, The housing is provided with a first bearing, a second bearing, and a third bearing. The first bearing is rotatably coupled with the first rotating shaft, and the second and third bearings are coupled with the second rotating shaft. The first bearing is parallel to the first skeleton oil seal, the second bearing is parallel to the second skeleton oil seal, and the third bearing is parallel to the third skeleton oil seal.

3. The waterproof and dustproof sealing structure according to claim 1, characterized in that, A first gear is provided on the first rotating shaft, and a second gear is provided on the second rotating shaft. The first gear and the second gear mesh together, and the first rotating shaft and the second rotating shaft are perpendicular to each other.

4. The waterproof and dustproof sealing structure according to claim 1, characterized in that, A commutator is provided on the second rotating shaft, and the commutator is located inside the housing.

5. The waterproof and dustproof sealing structure according to claim 1, characterized in that, The outer casing includes a head shell and a front cover, which are detachably fitted together.

6. The waterproof and dustproof sealing structure according to claim 5, characterized in that, The head shell is provided with a self-locking screw, and a sealing washer is fitted on the self-locking screw.

7. The waterproof and dustproof sealing structure according to claim 5, characterized in that, The first skeleton oil seal is located inside the front cover, and the second and third skeleton oil seals are located inside the head shell.

8. An angle grinder characterized in that, Includes the waterproof and dustproof sealing structure as described in any one of claims 1 to 7.

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