US 11,872,673 B2
Oil drain combination for brake
Chao-Ching Tseng, Taichung (TW)
Filed by Chao-Ching Tseng, Taichung (TW)
Filed on Jan. 4, 2022, as Appl. No. 17/567,906.
Claims priority of application No. 110101189 (TW), filed on Jan. 12, 2021.
Prior Publication US 2023/0211474 A1, Jul. 6, 2023
Int. Cl. B25B 13/48 (2006.01); B60T 11/28 (2006.01)
CPC B25B 13/48 (2013.01) [B60T 11/28 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An oil drain combination for a brake comprising: a wrench and a draining assembly;
the wrench being a ratchet wrench configured to switch a rotation direction and rotated back to an original position bidirectionally;
the draining assembly being connected in the receiving orifice of a drive head of the wrench, and the draining assembly including a coupling shaft, a fitting member, a first joining tube, and a fixing member;
wherein the fitting member is rotatably accommodated in the receiving orifice of the drive head; a first segment of the fitting member is connected with or is removed from a first segment of the coupling shaft; a first end of the first joining tube is fitted in the first segment of the coupling shaft and inserts into the fitting member; a first segment of the fixing member is rotatably connected with a second segment of the coupling shaft; an axial line of the fixing member extends from the first segment of the fixing member to a second segment of the fixing member and insects with a central line of the coupling shaft perpendicularly;
wherein the first joining tube has an accommodation orifice extending along a central axis thereof, and the first joining tube has an axial orifice communicating with the accommodation orifice, wherein the coupling shaft has a blind orifice extending in a central axis thereof and communicating with the axial orifice of the first joining tube, the coupling shaft further has multiple radial orifices communicating with the blind orifice, wherein the fixing member has a first connection hole communicating with a second connection hole and the multiple radial orifices of the coupling shaft; the axial orifice of the first joining tube, the blind orifice and the multiple radial orifices of the coupling shaft, and the first connection hole and the second connection hole of the fixing member form an oil supply path.