Patent TW-202222500-A (TW)
Title: Penetrating type wrench clamping structure comprising a wrench body, a ratchet member, a sleeve positioning member, and a lifting control plate
Inventor: Chen zi-jun
IPC: B25B13/46
Filed: 2020-12-08
Abstract: The present invention provides a penetrating type wrench clamping structure. In this structural design, an accommodating space is provided inside the wrench head of a wrench body, and a ratchet member is clamped in the accommodating space. The ratchet member is internally provided with a hexagonal built-in groove, and the lower end of the hexagonal built-in groove presents a wider circular groove. Furthermore, an inner groove is formed on the hexagonal edge of the hexagonal built-in groove, a cylindrical groove is formed at the hexagonal end of the hexagonal built-in groove, and the ratchet member forms a smaller hexagonal perforation at the uppermost end of the hexagonal built-in groove. Thereafter, the hexagonal built-in groove of the ratchet member can be used for a sleeve positioning member to pass through. The sleeve positioning member is composed of a topmost upper column area and a lower hexagonal positioning area. A hexagonal hole penetrates through the sleeve positioning member, and a positioning cylinder is formed at the hexagonal end of the hexagonal positioning area. A steel ball hole is preset on two opposite sides of the hexagonal positioning area, and a steel ball is built in the steel ball hole. A ring groove is provided at the outer edge of the upper end of the topmost upper column area. When the sleeve positioning member penetrates from the lower end of the ratchet member, the hexagonal positioning area and the positioning cylinder are limited in the hexagonal built-in groove and the cylindrical groove, and the positioning cylinder in the cylindrical groove is provided with a spring. The upper column area of the sleeve positioning member is penetrated from the hexagonal perforation of the ratchet member and then penetrated through the perforation of a lift control plate at the upper end. A fastener is stuck in the ring groove of the sleeve positioning member such that the fastener is stuck at the upper end of the lift control plate to achieve the combination of the ratchet member, the sleeve positioning member and the lift control plate. Therefore, when the sleeve is inserted into the hexagonal hole from the lower end of the sleeve fixing member, both sides of the upper edge of the plug end of the sleeve are stuck with the steel balls in the wall of the hexagonal hole, and the sleeve fixing member is moved upward together. When the steel balls move up to the inner groove of the ratchet member, the steel balls obtain the space to move outward so that the released sleeve can continue to be inserted into the hexagonal hole. Further, when the ring groove of the plug end of the sleeve rises to the position of the steel ball, the steel ball is clamped inwardly between the sleeve positioning member and the sleeve such that the sleeve positioning member is reset downward by the pushing force of the spring and the clamping of the sleeve is completed. When releasing, it is only necessary to pull the lift control member upward to make the sleeve positioning member and the sleeve move upward together. When the steel ball is pulled up again to the position of the inner groove of the ratchet member, the steel ball can move outward, thereby resulting in the release condition of the sleeve.