MULTIDIRECTIONALLY-ENGAGEABLE COLUMN COMBINATION STRUCTURE

A multi-directionally engageable column combination structure comprising a column, a first hook body, and a second hook body. The column is in a straight cylindrical shape and has an outer circular surface and two end faces. A plurality of axial combination grooves are disposed at the outer circular surface, and the combination groove has an opening, a first catching groove and a second catching groove; a front end of the first hook body has a first hook portion, a rear end of the first hook portion has a first engaging portion, a front end of the first hook portion has a first hook pillar, a first hook edge is disposed at a front end of the first hook pillar, an abutting edge is disposed at a position that is on the first hook portion and corresponds to the outer circular surface of the column; a side of the first engaging portion has a first engaging surface, and a first combination hole is disposed on the first engaging surface; a front end of the second hook body has a second hook portion, a rear end of the second hook portion has a second engaging portion, a front end of the second hook portion has a second hook pillar, a second hook edge is disposed at a front end of the second hook pillar, a side of the second engaging portion has a second engaging surface attached against the first engaging surface, and a second combination hole is disposed, the first and second hook edges of the first and second hook bodies hook the first and second catching grooves respectively, and then engaging elements are inserted into the first and second combination holes for combination. Thus, better assembly convenience and stability are achieved in the present application.

BACKGROUND OF INVENTION

1. Field of Invention

The present application relates to multi-directionally-engageable column combination structures and particularly to a structure with better assembly convenience and stability.

2. Description of Related Art

Various products, such as study desk, seat, compartment, shelf, cabinet, and elevated flooring and so on are generally supported with straight columns. These columns may be set in a direction perpendicular, or parallel to the ground or in another direction. Study desk, seat, and other components may be disposed on the columns by using fixing elements.

In order to provide assembly convenience, four or eight T-shaped grooves are arranged on a surface of the column in different directions and a T-shaped hook body is provided at an end of an external component. The T-shaped hook body may be embedded from one end of the column into the T-shaped groove and then moved to an appropriate position in the middle of the column for combination so that the hook body will not separate from the column along a radial direction of the column.

In the preceding assembly manner, it is required to perform assembly from the end of the column, resulting in assembly inconvenience. Further, when a hook body of another external component is present in the middle of the column and hinders assembly of another hook body, it is required to firstly take out the hook body of the external component and then assemble another hook body. Such assembly consumes much time.

Furthermore, at present, a U-shaped groove may be disposed on the column and the end of the external component is directly placed at the groove position of the column and then locked with a bolt. In this way, it is not required to perform insertion combination from the end of the column any more during assembly. However, the above combination manner will easily cause the external component to directly separate along the radial direction of the column when the bolt is loosened.

SUMMARY OF THE INVENTION

One object of the present application is to provide a column combination structure with better assembly convenience and stability.

The column combination structure includes a column, a first hook body, and a second hook body. The column is in a straight shape and has an outer circular surface and two end faces. A plurality of axial combination grooves inwardly recessed toward a center of the column are provided at different angular positions of the outer circular surface, a spacing portion is provided between adjacent combination grooves, an outer side of the combination groove has an opening corresponding to the radial direction of the column, the opening has opposite first and second side walls, first and second catching grooves along a circumferential direction are disposed at inner sides of the first and second side walls respectively, and the first and second catching grooves are opposite in direction; a front end of the first hook body has a first hook portion, a rear end of the first hook portion has a first engaging portion, a front end of the first hook portion has a first hook pillar that may be inserted into the opening of the combination groove, and a first hook edge that may be embedded into the first catching groove is provided at a front end of the first hook pillar; a side of the first engaging portion has a first engaging surface, and a first combination hole corresponding to a perpendicular direction of the first engaging surface is disposed at the first engaging surface; a front end of the second hook body has a second hook portion, a rear end of the second hook portion has a second engaging portion, a front end of the second hook portion has a second hook pillar that may be inserted into the opening of the combination groove, a second hook edge that may be embedded into the second catching groove is provided at a front end of the second hook pillar, a side of the second engaging portion has a second engaging surface that may be attached against the first engaging surface, a second combination hole corresponding to a perpendicular direction of the second engaging surface is provided at a position corresponding to the first combination hole, the first and second hook edges of the first and second hook bodies may hook the first and second catching grooves respectively and then engaging elements are inserted into the first and second combination holes for combination.

Further, an inwardly concave buffer groove is disposed on the second engaging surface.

Further, an abutting edge abutting against the outer circular surface of the column is provided at a position that is on the first hook portion and corresponds to the outer circular surface, an abutting edge is further disposed at a position that is on the first hook portion and corresponds to the outer circular surface of the column, and the first hook pillar has a first side surface attached against the first side wall of the combination groove; the second hook pillar has a second side surface attached against the second side wall of the combination groove, the column is a cylindrical body, six combination grooves may be provided and adjacent combination grooves may be spaced apart by 60°.

According to the present application, the first hook portion of the first hook body is inserted into the opening of the combination groove at an appropriate angular position of the column so as to enable the first hook edge to hook the first catching groove, and the second hook portion of the second hook body is inserted into the opening of another adjacent combination groove to enable the second hook edge to hook the second catching groove. In this way, the first and second engaging surfaces are attached closely, and engaging elements are inserted into the first and second combination holes of the first and second engaging portions for combination. Further, when the buffer groove of the second engaging portion is provided so that the first and second engaging surfaces may be abutted against each other more stably when the engaging elements are thread-tightened. In this case, the first and second hook edges may respectively hook the first and second catching grooves more stably and clamp the spacing portion of the column. Further, the first and second side surfaces may be closely attached against the first and second side walls respectively, and the abutting edge of the first hook portion can be closely abutted against the outer circular surface of the column, so that the entire combination can have better combination stability without loosening. In the present application, the first and second hook bodies may be directly inserted into appropriate positions of the combination grooves of the column for combination without need of being inserted into the combination grooves from the end face of the column and then moved to the appropriate positions of the combination grooves. Thus, the better assembly convenience can be achieved.

The following embodiments are provided to illustrate, but not to limit the instant invention.

As shown inFIGS. 1-3, a column combination structure based on an embodiment of the present application includes a column1, a first hook body2, a second hook body3and a plurality of cover frames4. The column is a straight cylindrical body and has an outer circular surface1and two end faces12, a plurality of axial combination grooves13inwardly recessed toward a center of the column are disposed on the outer circular surface11, a spacing portion14is disposed between adjacent combination grooves13, the number of the combination grooves is six, and adjacent combination grooves13are spaced apart by 60°. An outer side of the combination groove has an opening131corresponding to a radial direction of the column1, the opening131has a first side wall132and a second side wall133paralleled to each other, a first catching groove134and a second catching groove135along a circumferential direction are disposed at respective inner sides of the first side wall132and the second side wall133, the first catching groove134and the second catching groove135are opposite in direction, and a recess136is disposed at an inner position of the first catching groove134and the second catching groove135; an axial combination hole141is disposed at the spacing portion14; and a through hole15is provided at the center of the column1.

A front end of the first hook body2has a first hook portion21, a rear end of the first hook portion21has a first engaging portion22, a front end of the first hook portion21has a first hook pillar211that may be inserted into the opening131of the combination groove13, the first hook pillar211has a first side surface212attached against the first side wall132of the combination groove13, a first hook edge213that may be embedded into the first catching groove134is disposed at a front end of the first hook pillar211, and a abutting edge214is disposed at a position that is on the first hook portion21and corresponds to the outer circular surface of the column1; a side of the first engaging portion22has a first engaging surface221, a first combination hole222corresponding to the perpendicular direction of the first engaging surface221is disposed at the first engaging surface221, the first combination hole222has thread, an engaging hole223corresponding to a back and forth direction and connecting with an external component7is disposed (the external component in the embodiment is a sheet-like shape), and a first clamping sheet224is disposed at the back of the first engaging portion22.

A front end of the second hook body3has a second hook portion31, a rear end of the second hook portion31has a second engaging portion32, a front end of the second hook portion31has a second hook pillar311that may be inserted into the opening131of the combination groove13, the second hook pillar311has a second side surface312that may be attached against the second side wall133of the combination groove13, a second hook edge313that may be embedded into the second catching groove135is disposed at a front end of the second hook pillar311, a side of the second engaging portion32has a second engaging surface that may be attached against the first engaging surface221, a buffer groove322is disposed on the second engaging surface321, a second combination hole323corresponding to the perpendicular direction of the second engaging surface321is disposed at a position corresponding to the first combination hole222, and a second clamping sheet324is disposed at the back of the second engaging portion32.

The cover frame4is of straight shape and has a cover plate41, the cover plate41approximately corresponds to a width of the opening131of the combination groove13and has a curvature corresponding to the outer circular surface11of the column1, side plate portions42are disposed inwardly along a perpendicular direction on both sides of the cover plate41respectively, flanges43respectively engageable with the first catching groove134and the second catching groove135are disposed at ends of the two side plate portions42.

When the present application is assembled, the first engaging portion22of the first hook body2may be combined with the external component7by inserting the engaging element6into the engaging hole223, and a side of the external component7is attached against the first clamping sheet224. Further, the first hook portion21of the first hook body2is inserted into the opening131of the combination groove13at appropriate angular position of the column1to enable the first hook edge213to hook the first catching groove134; further, the second hook portion31of the second hook body3inserted into the opening131of the another adjacent combination groove13to enable the second hook edge313to hook the second catching groove135. In this way, the first engaging surface221and the second engaging surface321are attached with each other. Further, the engaging elements6are inserted into the first combination hole222and the second combination hole323of the first engaging portion22and the second engaging portion32for combination. The buffer groove322of the second engaging portion32is provided, so that the first engaging surface221and the second engaging surface321can be abutted against each other more stably when engaging elements6are thread-tightened. in this case, the first hook edge213and the second hook edge313can more stably hook the first catching groove134and the second catching groove135respectively so as to more stably clamp the spacing portion14of the column1. Further, the first side surface212and the second side surface312are more closely attached against the first side wall132and the second side wall133respectively. The abutting edge214of the first hook body21is closely attached against the outer circular surface11of the column1, and the second clamping sheet324is attached against the other surface of the external component7. In this way, the entire combination will have better combination stability without loosening. Further, in the present application, the first hook body2and the second hook body3may be directly inserted into the appropriate positions of the combination grooves13of the column1respectively for combination, without need of being inserted into the combination groove13from the end face12of the column1and then moved to appropriate positions of the combination grooves13. Thus, better assembly convenience is achieved.

In the present application, the cover frame4may be inserted into the combination groove13of the column1from the end face12of the column1so that flanges on both sides of the cover frame4are embedded into the first catching groove134and the second catching groove135of the column1respectively. Thus, the cover frame4is prevented from radially falling from the column1. In this case, the cover plate14covers the opening131of the combination groove13. As a result, the openings131of the combination grooves13that are not assembled with the first hook body2and the second hook body3can be covered by the cover frames4so as to achieve better entire combination aesthetics.

The combination of several columns1, several first hook bodies2, several second hook bodies3, and several sheet-shaped external components in the present application can be in a shape such as three-angle shape, four-angle shape, five-angle shape, grid shape or the like (not shown in Figures). Therefore, multiple assembly variations may be implemented.

With reference toFIGS. 4-5, the present application further includes a connection block5having a connection plate51. Side support plates52are disposed upwardly on both sides of the connection plate51respectively, the connection plate51may be disposed at the end face12of a column1, first assembly holes511are disposed at positions corresponding to the combination hole141of the column1, and a second assembly hole512is disposed at the center of the connection plate51. The two side support plates52may be abutted against the outer circular surface11of another column1. A assembly plate61is disposed at a position of a bottom combination groove13of the another column1, both ends of the assembly plate61can be inserted into the first catching groove134and the second catching groove135, the connection plate51of the connection block5may be placed on the end face12of a column1and combined with the combination hole141of the column1by inserting engaging elements6into the first assembly holes511. Another column1may be placed on the connection block51to allow the side support plates52of the connection block51to be abutted against the outer circular surface11of the another column1. Further, the engaging element6is inserted into the second assembly hole512to fixedly connect with the assembly plate61on the another column1, the recess136of the combination groove13of the another column1may be provided so that an end of the engaging element6can be inserted, and the central through hole15of the column1may be provided to facilitate rotating the engaging element6by an inserting tool (not shown in Figures).

By referring toFIG. 6, the first engaging portion22of the first hook body2in the present application may be directly and integrally connected with an external component. For example, the first engaging portions22can be directly and integrally connected with a backrest support plate71and a seat support plate72of a seat respectively and assembled into the combination grooves13at appropriate angular positions of the column1respectively.

Thus, the column1of the present application may provide various external component combinations to achieve better application.

In conclusion, the present application has the effect of better assembly convenience and stability. Further, the preceding embodiments are merely illustrative of the present application rather than limit the present application. Any equivalent changes made based on the spirit of the present application all fall within the scope of protection of the present application.

Numerals of the drawings are described as follows: