Patent Application
20240293920
The present invention relates to an engagement structure of a ratchet wrench which is moved forward and backward to engage with or remove from a socket quickly.
A conventional ratchet wrench contains a drive head in which a ratchet orifice is defined and is configured to receive a steel ball, such that a socket is fitted with the conventional ratchet wrench by using the steel ball securely.
However, when engaging or removing the socket with or from the conventional wrench, the socket is pushed or pulled forcefully, and the steel ball or the socket will be abraded easily.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary object of the present invention is to provide an engagement structure of a ratchet wrench which is moved forward and backward to engage with or remove from a socket quickly.
Secondary object of the present invention is to provide an engagement structure of a ratchet wrench which maintains torque of the ratchet wrench and operates the ratchet wrench in a limited spaced easily.
The primary object of the present invention is to provide an engagement structure of a ratchet wrench which is capable of operating the ratchet wrench with one hand by pushing the spring back to an original position forward easily.
To obtain above-mentioned aspects, an engagement structure of a ratchet wrench provided by the present invention, the ratchet wrench contains: a body which includes a drive head, a ratchet portion formed on an inner wall of the drive head, and the engagement structure.
The engagement structure includes a through orifice defined on the drive head, a first defining notch extending from an upper portion of a front end of the through orifice, a second defining notch extending from a lower portion of the front end of the through orifice, a receiving notch defined on a center of a rear end of the through orifice, and a spring accommodated in the receiving notch.
An abutting member is received in a top of the through orifice, and the abutting member includes a first arcuate cutout formed on a front end thereof, a coupling column extending downward from an inner surface thereof. A rear segment of the coupling column is a plane, a front segment of the coupling column is arcuate, and the abutting member includes a locking orifice defined on a bottom thereof. The abutting member further includes a first limitation protrusion extending from a top thereof.
A retainer is mounted on a bottom of the through orifice, the retainer includes a second arcuate cutout formed on a front end thereof, a connection trough defined on an inner wall of the retainer, a passing aperture formed in the connection trough, and a second limitation protrusion extending from a front end of the connection trough.
When the abutting member is received in the through orifice, the first limitation protrusion is engaged in the first defining notch, the coupling column is connected with the connection trough of the retainer, and a locking element is locked with the locking orifice of the coupling column. The second limitation protrusion of the retainer is engaged in the second defining notch, and the spring of the receiving notch abuts against the rear segment of the coupling column.
The engagement structure matches with a socket, and the socket includes a fitting portion extending on an upper end thereof, the socket further includes an operating portion extending on a lower end thereof. The fitting portion has a first trench defined around an upper section of an outer wall thereof, and the fitting portion has a second trench defined around a lower section of an outer wall thereof.
With reference to
The engagement structure 13 includes a through orifice 20 defined on the drive head 11, a first defining notch 21 extending from an upper portion of a front end of the through orifice 20, a second defining notch 22 extending from a lower portion of the front end of the through orifice 20, a receiving notch 23 defined on a center of a rear end of the through orifice 20, and a spring 24 accommodated in the receiving notch 23.
An abutting member 30 is received in an upper end of the through orifice 20, and the abutting member 30 includes a first arcuate cutout 31 formed on a front end of the abutting member 30, a coupling column 32 extending downward from an inner surface thereof, wherein a rear segment of the coupling column 32 is a plane, a front segment of the coupling column 32 is arcuate, and the abutting member 30 includes a locking orifice 34 defined on a bottom thereof, and the abutting member 30 further includes a first limitation protrusion 33 extending from a top thereof. A retainer 40 is mounted on a bottom of the through orifice 20, the retainer 40 includes a second arcuate cutout 41 formed on a front end thereof, a connection trough 42 defined on an inner wall of the retainer 40, a passing aperture 43 formed in the connection trough 42, and a second limitation protrusion 44 extending from a front end of the connection trough 42, such that when the abutting member 30 is received in the through orifice 20, the first limitation protrusion 33 is engaged in the first defining notch 21, the coupling column 32 is connected with the connection trough 42 of the retainer 40, and a locking element 45 is locked with the locking orifice 34 of the coupling column 32, thus fixing the retainer 40 with the abutting member 30. The second limitation protrusion 44 of the retainer 40 is engaged in the second defining notch 22, and the spring 24 of the receiving notch 23 abuts against the rear segment of the coupling column 32.
Referring further to
In contrast, the engagement structure 13 is pulled backward so that the abutting member 30 removes from the first trench 53, and the retainer 40 detaches from the second trench 54, thus removing the socket 50.
As shown in
While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.
