Patent Application
20110170943
(a) Field of the Invention
The present invention provides a quick plugging set of pneumatic tools, which is mainly designed for the integrated combinations of a connector and a steel ball seat, and a steel ball seat and a tailstock; wherein through the design of thin cladding placed at outer end of a steel ball seat holding groove, rapid integration of the ball head of the connector and the steel ball seat is achieved; through the placement of a stop-leak rubber ring and a friction ring, the connector is provided with not only arbitrary angle adjustment feature but also good stop-leak effects; and for the combination of the steel ball seat and the tailstock, simple covering interpolation integration coordinated with the filling of steel balls is adopting to maintain the relationship of interpolation and integration and to further provide the steel ball seat and the tailstock with relatively flexible rotation performance, thus deficiencies missing about conventional structure is solved.
(b) Description of the Prior Art
The design for general pneumatic tools mainly adopts air pressure as the driving force to achieve the purpose of driving tool actuation; to achieve operational convenience of such tools, generally, a quick plugging set with arbitrary angle and rotation shift adjustment is designed to be linking component between such tool and transmission piping thereof; through the design about the ball head of the connector, coordinated with the margin of space provided by plugging set holding groove of the tailstock, the ball head of the connector is made to be an axis for arbitrary angle adjustment.
To achieve the torsion angle adjustment performance for such quick plugging set, the tailstock holding groove of convergence tools is generally designed to be with a through hole at one end and the diameter of the through hole is slightly less than that of the ball head of the connector, and the connector is placed inside from another end of the tailstock, in which the connector rod segment passes through the through hole with reducing diameter of the holding groove and is prominent in the outer, and the spacing of the ball head is placed within the holding groove of the tailstock, coordinated with the extended outside lead edge of the holding groove through hole, thus the connector is provided with torsion angle adjustment performance.
Moreover, to achieve the seal and leak-proof performance between the connector and the tailstock, stop-leak rings are usually installed between the two ends of the ball head of the connector and the tailstock holding groove, thus the seal effects between the above both is achieved through such stop-leak ring, to prevent gas and liquid from leakage when rapid plugging set performs flexible torsion angle conversion.
However, in view of the structural design of the existing quick plugging set, the fit structure processing between the ball head of the connector and the tailstock holding groove is not only difficult, but also very susceptible to wear and tear and to produce gaps after a period of usage, so as to reduce the conformability between the ball head and the tailstock holding groove, the absolutely seal relationship between the stop-leak rings installed at the two ends of the ball head and the inner wall of the holding groove is not achieved, thus the seal and leak-proof performance is seriously affected; it is necessary to try to quickly solve and improve the phenomenon.
Moreover, the above design for the quick plugging set only provides the ball head of the connector with arbitrary angle adjustment feature, but without flexible relative rotation performance between the connector and the tailstock, in view of the whole practicality, virtually surviving the limitation of a lack of control flexibility; it is necessary to try to further solve and improve the phenomenon.
In view of various problems and shortcomings of the composition design for the existing quick plugging set, the inventor undertakes research and improvement based on his many years experience in related industries and technology, and further creates the structure of the quick plugging set of pneumatic tools of the present invention, wherein the main object is to provide the torsion angle adjustment performance required for the quick plugging set by way of the most simple composition through structural composition design, and to enhance and maintain the seal and leak-proof performance.
The another object of the present invention is to further provide the tailstock with flexible rotation performance through structural composition design, besides the arbitrary torsion angle adjustment performance of the connector, so as to effectively raise the control flexibility and use convenience.
To achieve the above objects, the structural design of the present invention is mainly composed of a connector, a steel ball seat, and a tailstock, wherein through the design of thin cladding placed at outer end of a steel ball seat holding groove, rapid integration of the ball head of the connector and the steel ball seat is achieved; through the placement of a stop-leak rubber ring and a friction ring, the connector is provided with not only arbitrary angle adjustment feature but also good stop-leak effects; and for the combination of the steel ball seat and the tailstock, simple covering interpolation integration coordinated with the filling of the steel balls is adopting to maintain the relationship of interpolation and integration and to further provide the steel ball seat and the tailstock with relatively flexible rotation performance, thus deficiencies missing about conventional structure is solved.
The composition, technical means, and effects of the present invention are further specified with the drawings as following:
Referring now to the structural exploded schematic view of
the connector (10), a quick plugging connector (11) installed at one end of which is used for interpolating and connecting with air pressure or oil pressure piping, another end is made to be a ball head (12), and a reducing diameter neck (13) is formed at convergence portion between the ball head (12) and the quick plugging connector (11), thus the ball head (12) is put within a holding groove (21) placed at a steel ball seat (20), so as to provide with arbitrary torsion angle adjustment performance;
the steel ball seat (20), one end of which is made to be the holding groove (21) with increasing diameter for holding the ball head (12) of the connector (10), the outer end of the holding groove (21) is placed with a thimble groove (22) and extendedly installed with a thin cladding (23) with suitable width, and a step edge portion (24) is formed at convergence interface between the thimble groove (22) and the thin cladding (23), to embed a stop-leak rubber ring (40) within the thimble groove (22); after the ball head (12) of the connector (10) is put into the holding groove (21), a friction ring (50) made of wear-resistant material is plugged inside from the outer end of the connector (10) and is restricted in the step edge portion (24), finally, the thin cladding (23) extendedly installed at the outer end of the holding groove (21) is stamped and folded to cover the friction ring (50), thus the connector (10) combines with the steel ball seat (20); and another end of the steel ball seat (20) is made to be a covering interpolation segment (25) with reducing diameter for plugging into the tailstock (30), and a ring groove (26) is placed at pre-determined position of the covering interpolation segment (25), for filling steel balls (60) between the steel ball seat (20) and the tailstock (30);
the tailstock (30), one end of which is made to be a locking connection segment (31) with external thread, for combining with integrated tools (not shown) or other device, another end of the tailstock (30) is installed with a hex rod segment (32), a covering interpolation groove (33) is placed within the hex rod segment (32) for covering interpolation and combination of the covering interpolation segment (25) of the steel ball seat (20), and a thimble groove (34) and a ring groove (35) are placed at pre-determined position within the covering interpolation segment (25), in which the thimble groove (34) is inside stuffed with a leak-proof C type seal ring (70) to maintain the seal state of the covering interpolation relationship between the covering interpolation segment (25) of the steel ball seat (20) and the tailstock (30); the ring groove (35) and the ring groove (26) of the steel ball seat (20) correspondingly integrate to constitute ring space for filling the steel balls (60), and a bolt hole (36) is placed at outer portion of the hex rod segment (32) of the tailstock (30) for linking the ring groove (35), to fill the steel balls (60) sequentially, and finally to be blocked with a bolt pillar (37).
According to the above composition design, through the stop-leak rubber ring (40) embedded within the holding groove (21) of the steel ball seat (20), the contact and seal relationship between the ball head (12) of the connector (10) and the holding groove (21) of the steel ball seat (20) is achieved, accompanied by the grouping and combination relationship, through the outer-side limit by the friction ring (50), between the ball head (12) of the connector (10) and the holding groove (21) of the steel ball seat (20), the ball head (12) of the connector (10) performs arbitrary angle adjustment for the connector (10) under the limit of the friction ring (50) and the space margins provided by the holding groove (21), in which the friction ring (50) made of wear-resistant material improves the wear and tear problems; moreover, through the effects of the steel balls (60) filled between the ring groove (26) of the steel ball seat (20) and the ring groove (35) of the tailstock (30), the steel ball seat (20) and the tailstock (30) are provided with relatively flexible rotation performance, and through the seal ring (70) stuffed inside the thimble groove (34) of the tailstock (30), the watertight effects between the tailstock (30) and the steel ball seat (20) are maintained, thus the seal effects among the composed components of the quick plugging set are achieved, and arbitrary angle adjustment and flexible rotation performance are further provided, so as to respond to diverse needs on use and control to be a simple and practical structure of a quick plugging set of pneumatic tools.
Furthermore, because of the grouping and combination relationship between the ball head (12) of the connector (10) and the holding groove (21) of the steel ball seat (20) is maintained through that the primary limit of the additionally installed friction ring (50) is achieved, and then the limit maintenance of complete relationship is achieved through that the thin cladding (23) extendedly installed at the steel ball seat (20) stamps and folds to limit the friction ring (50), thus the whole compositions and operations are more simple, and the friction ring (50) made of material with better wear resistance does not produce problems of wearing and tearing and gaps produced in torsion angle change of the connector (10), so as to effectively ensure the seal and leak-proof effects, to solve various problems and shortcomings derived from conventional structure.
By the above explanations, through the composition design of the present invention, the integrated operation of the quick plugging set is simpler, the excellent seal and leak-proof effects are achieved, the connector is provided with arbitrary torsion angle adjustment feature, and the tailstock is further provided with flexible rotation performance. Thus demand for all kinds of manipulation on use is more conformed, overall, there are excellent industrial usability and practical value, which completely solve various problems and shortcomings existing in and derived from conventional similar products.
