Dust collection components attached to the grinder

Abstract

A dust collection assembly attached to a grinder includes a dust collection hood and a hollow dust collection tube connected to the dust collection hood. The dust collection hood includes an installation port, a top cover extending radially outward from the installation port, an outer ring wall extending from a periphery of the top cover toward the grinding disc, a dust collection space formed by the installation port, the top cover, and the outer ring wall, and at least one hollow connecting portion disposed on the outer ring wall and communicating with the dust collection space. A braking assembly is provided in the dust collection space. The braking assembly includes a receiving groove extending from the top cover toward the grinding disc and a braking element located in the receiving groove.

Claims

1. A dust collection assembly attached to a grinder, the grinder comprising a grinder body, a transmission module disposed within the grinder body, and a grinding disc connected to the transmission module, the dust collection assembly being disposed between the grinder body and the grinding disc, the dust collection assembly comprising: a dust collection hood, including a mounting opening, a top cover extending radially outward from the mounting opening, an outer ring wall extending from a periphery of the top cover toward the grinding disc, a dust collection space formed by the mounting opening, the top cover, and the outer ring wall, and at least one hollow connecting portion disposed on the outer ring wall and communicating with the dust collection space; and a hollow dust collection pipe connected to the dust collection hood, the hollow dust collection pipe including a connecting section and an assembly section corresponding to and connected to the hollow connecting portion; wherein... The dust collection space is equipped with a braking assembly, which includes a receiving groove extending from the top cover toward the grinding disc and located adjacent to the outer ring wall. The receiving groove includes a peripheral wall, a displacement range defined by the peripheral wall, and a plurality of limiting holes opened on the peripheral wall. The brake assembly includes a body having a first assembly groove and a second assembly groove extending toward the top cover and the grinding disc respectively, an elastic member disposed in the first assembly groove, and a brake pad disposed in the second assembly groove. An outer wall of the first assembly groove is provided with a plurality of limiting portions corresponding to the limiting holes. The brake assembly defines a braking state in which the elastic member is normally in contact with the top cover and the brake pad is normally in contact with the grinding disc, and a braking release state in which the elastic member is compressed and in contact with the top cover and the brake pad is moved away from the grinding disc.

2. The dust collection assembly as described in claim 1, wherein, The top cover and the receiving groove are integrally formed.

3. The dust collection assembly as described in claim 1 or 2, wherein, The top cover is divided into a flat portion and a protruding portion that extends from the flat portion toward the main body of the grinder. The horizontal height of the protruding portion is greater than that of the flat portion, and the receiving groove is located in the protruding portion.

4. The dust collection assembly as described in claim 1, wherein, Each of these limiting parts is a protrusion with a guide slope.

5. The dust collection assembly as described in claim 1, wherein, The outer diameter of the second assembly slot is not less than the inner diameter of the receiving slot.

6. The dust collection assembly as described in claim 1, wherein, The dust collection hood includes an inner ring wall extending from the mounting port toward the grinding disc, the inner ring wall forming a positioning recess, and the dust collection hood being assembled to a positioning protrusion of the grinding machine body through the positioning recess.

7. The dust collection assembly as described in claim 1, wherein, The hollow dust collection tube includes a retaining portion extending from the connecting section toward the grinding machine body, and the hollow dust collection tube is connected to a positioning portion of the grinding machine body through the retaining portion.

8. The dust collection assembly as described in claim 1, wherein, The dust collection hood consists of a first housing and a second housing, with the braking assembly disposed in the first housing and the hollow joint portion disposed in the second housing.

9. The dust collection assembly as described in claim 8, wherein, The first housing and the second housing are provided with a plurality of first sets of connecting holes and a plurality of second sets of connecting holes at their corresponding ends, so that a plurality of screw fasteners can pass through the first and second sets of connecting holes.

10. The dust collection assembly as described in claim 9, wherein, The second set of holes of the second housing extends toward the grinding disc with an assembly post having internal threads and a closed end.

11. The dust collection assembly as described in claim 1, wherein, The brake pad has a braking surface, which is a flat surface.

12. The dust collection assembly as described in claim 1, wherein, The brake pad has a braking surface, which is a concave-convex surface.

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