Patent Application
20240075597
The present invention relates to a quick-release torque device.
Generally, during the fastening operation, it is labor-saving to use driving tools to fasten the fastener. For example, socket wrenches are used to loosen/tighten bolts, nuts or the like; or one of tool bits replaceably inserted in a socket of a driving tool is used to drive various driven members. In order to retain the driven member (such as a tool bit, bolt or nut) in and not fall off the socket of the driving tool, a magnetic member may be disposed on the driving tool.
In addition, in order to facilitate the removal of the tool bit in the socket of the driving tool after operation or during replacement, a mechanism that is movable in the socket to push the tool bit is provided. However, in the conventional driving tools, it is necessary to provide corresponding and associated structures on separate components, resulting in complex structures, difficult processing, manufacturing, and assembling, poor manufacturing efficiency, and high cost.
The present invention is, therefore, arisen to obviate or at least mitigate the above-mentioned disadvantages.
The main object of the present invention is to provide a quick-release torque device whose components are simple, which is easy to manufacture, assemble and operate, and which greatly improves the production efficiency and lowers costs.
To achieve the above and other objects, a quick-release torque device is provided, including: a main body, including a receiving hole, a connecting hole for assembling of a driven member, and a through hole in communication with the receiving hole and the connecting hole, the receiving hole and the connecting hole being respectively opened on opposing sides of the main body; an annular magnetic member, fixedly received in the through hole; a push rod, movably inserted within the through hole and the annular magnetic member.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment(s) in accordance with the present invention.
Please refer to
The main body 10 includes a receiving hole 11, a connecting hole 12 for assembling of a driven member 100 (such as a tool bit, extension rod or the like), and a through hole 13 in communication with the receiving hole 11 and the connecting hole 12. The receiving hole 11 and the connecting hole 12 are respectively opened on opposing sides of the main body 10. The push rod 20 is movably inserted within the through hole 13 and the annular magnetic member 30. Specifically, the push rod 20 includes a head portion 21 received in the receiving hole 11 and a body portion 22 extending from the head portion 21 and inserted in the through hole 13 and the annular magnetic member 30. The annular magnetic member 30 is fixedly received in the through hole 13. Whereby, the components of the quick-release torque device 1 are simple, it is easy to manufacture and assemble, and it greatly improves the production efficiency and lowers costs. Additionally, by pressing the push rod 20, the driven member 100 can be quickly pushed outward from the connecting hole 12 (
In this embodiment, the quick-release torque device 1 is a driving tool having (such as a ratchet wrench, socket wrench or the like), the main body 10 further includes a handle 14 and a barrel 15 rotatably inserted in the handle 14, and the barrel 15 includes the receiving hole 11, the connecting hole 12 and the through hole 13. The barrel 15 is connected to the handle 14 and unidirectionally rotatable relative to the handle 14. Preferably, the barrel 15 can be controlled to be unidirectionally rotatable in either of two opposing directions by switching a switch member 16 on the quick-release torque device 1, for driving the driven member 100.
Preferably, the head portion 21 is outwardly convex and protrusive beyond the receiving hole 11, which is easy and effective to press the push rod 20. The quick-release torque device 1 further includes an elastic member 40, and the elastic member 40 is a conical coil spring disposed around the body portion 22. The main body 10 further includes a partition 17 extending radially and located between the receiving hole 11 and the connecting hole 12, the through hole 13 is disposed through the partition 17, and the elastic member 40 is disposed between the head portion 21 and the partition 17. As such, after the push rod 20 pressed is released, the push rod 20 can automatically return by utilizing the elastic force of the elastic member 40. An end face 23 of the push rod 20 is retractable to be located within the annular magnetic member 30, and it prevents the driven member 100 from being abutted against by the push rod 20 to lower the magnetic attraction force.
Preferably, the main body 10 further includes a first flange 18 along a periphery of the receiving hole 11 and extending radially inward, and the head portion 21 is axially blockable by the first flange 18 to ensure that the push rod 20 cannot disengage from the receiving hole 11.
In this embodiment, the through hole 13 includes a small diameter section 131 in communication with the receiving hole 11 and a large diameter section 132 in communication with the connecting hole 12, and the annular magnetic member 30 is fixed in the large diameter section 132. The annular magnetic member 30 includes two openings 31 expanding outward 31, and one of the two openings 31 facing the small diameter section 131 has a diametric dimension larger than a diametric dimension of the small diameter section 131. The opening 31 is advantageous for guiding the push rod 20, and the push rod 20 will not touch the fragile corner edge of the annular magnetic member 30 during operation, which can avoid damage to the push rod 20 and the annular magnetic member 30.
In this embodiment, an annular side face 32 of the annular magnetic member 30 and the partition 17 of the main body 10 (may include an annular inclined surface) define an annular gap G therebetween, and the annular gap G expands radially inward. As such, it provides a margin for installation of the annular magnetic member 30 so that the annular magnetic member 30 cannot be easily damaged. Preferably, the annular magnetic member 30 is entirely within the through hole 13 and does not extend to be within the connecting hole 12, and the annular magnetic member 30 and the driven member 100 can be kept to be distanced from each other in a small gap, thus preventing the driven member 100 from directly contacting the annular magnetic member 30 so that the annular magnetic member 30 is well protected.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 111133275 | Sep 2022 | TW | national |
