TWI588372B - Frame body screw-free lock fast docking structure - Google Patents

Description

Frame-free screw-free quick assembly structure

The invention relates to a frame assembly structure, in particular to a frame-free screw-free quick combination structure.

The combined frame body which is common in the prior art is only required to be assembled by vertically assembling a plurality of first hollow support columns and a plurality of second hollow support columns, so that the utility model has the advantages of simple structure, convenient use and the like, and is widely accepted. Popular consumers love.

As shown in the new patent case No. M512964 "Frame combination structure and its combined cabinet", it is a conventional frame assembly structure which is connected between a first hollow support column and a second hollow support column. A joint member is arranged, and the second hollow support column is vertically assembled to the first hollow support column by means of screwing and screwing; however, the frame assembly structure of the screw screw is not only produced During the process, the first hollow support column and the second hollow support column need to be punched, tapped or placed into the nut for welding, and the tool needs to be rotated when assembling, the assembly action is troublesome, the speed is slow, and the assembly is made. The rear screws are exposed, which affects the appearance of the frame.

The inventors have in view of the conventional frame assembly structure, most of which are fixed by screw locking, and have to be punched, tapped or put into the nut during the production process, which is inconvenient to assemble, and the screws are exposed after assembly. Such shortcomings are based on the ideas of Naisi and design. After the test, and many corrections and improvements, the present invention was finally introduced.

The invention provides a frame-free screw-free quick assembly structure, comprising: a first hollow support column having at least one joint surface; and a second hollow support column having at least one joint end, the end face of the set end a quadrangular assembly hole having a length, a width and a pair of angular distances; and a connecting member comprising a body and a connecting unit extending from the base, the seat and the first The joint surface of the hollow support column is fixed, the connecting unit is perpendicular to the joint surface of the first hollow support column, and is connected to the connection hole of the second hollow support column, and the connection unit has at least one fastening block. The clamping block has a maximum length which is smaller than a diagonal distance of the set of holes, and the maximum length is slightly larger than the length of the set of holes, and both ends of the maximum length are provided with a large abutting end and a a small abutting end, a rotation limiting structure is disposed between the fastening block and the inner wall of the connecting hole of the second hollow supporting column; and the connecting unit of the second hollow supporting column and the connecting unit of the connecting member are inclined Fit at one angle, then turn it back The large abutting end of the connecting unit clamping block and the small abutting end are pressed against the two wall surfaces of the second hollow supporting column in the longitudinal direction of the connecting hole to be tightly fitted, and the limit of the rotating limit structure is matched to make the second The hollow support column is vertically assembled to the first hollow support column.

The main purpose of the invention is that the first hollow support column and the second hollow support column are assembled by using a sleeve and a positive rotation mode, and the assembly action is convenient and fast, and the assembly is convenient and fast without using a tool and a screw lock component. After that, the screw-locking element will not be exposed, and a flat appearance can be obtained.

The second object of the present invention is that the connecting member can be mass-produced in a modular manner, and the first hollow supporting column and the second hollow supporting column do not need to be punched, tapped or placed in the nut welding during the production process. Reduce manufacturing costs.

10‧‧‧First hollow support column

11‧‧‧ joint surface

20‧‧‧Second hollow support column

21‧‧‧ group end

22‧‧‧Group holes

30‧‧‧Connecting parts

31‧‧‧

32‧‧‧ Connection unit

321‧‧‧Clock block

321A‧‧‧Fixed tablets

321B‧‧‧Activities

321C‧‧‧ bolt

3211‧‧‧About the end

3212‧‧‧Small end

322‧‧‧Rotary limit convex

L1‧‧‧ length

W‧‧‧Width

S‧‧‧ diagonal distance

L2‧‧‧Maximum length

D‧‧‧diameter

The first figure is an exploded perspective view of the present invention.

The second figure is a cross-sectional view of the second hollow support column of the present invention.

The third figure is a cross-sectional view of the connector of the present invention.

The fourth figure is a perspective view of the assembly operation of the present invention.

Figure 5 is a cross-sectional view showing the assembly operation of the present invention.

The sixth figure is a perspective view of the assembly completion of the present invention.

Figure 7 is a cross-sectional view showing the assembly of the present invention.

Figure 8 is an exploded perspective view of a connecting member according to another embodiment of the present invention.

Figure 9 is a schematic view showing the adjustment operation of the connecting member according to another embodiment of the present invention.

Figure 11 is a cross-sectional view showing the assembly completion of another embodiment of the present invention.

Referring to the first, second and third figures, the frame-free screw-free quick assembly structure of the present invention comprises: a first hollow support column 10, a second hollow support column 20 and a connecting member 30, wherein The first hollow support column 10 has at least one joint surface 11; the second hollow support column 20 has at least one set of joint ends 21, and the end faces of the set of joint ends 21 are provided with a quadrangular assembly hole 22, the set of holes 22 The connecting member 30 includes a pair of seats 31 that should have a cross-sectional shape of the second hollow supporting column 20 and a connecting unit 32 extending from the seat body 31, and the connecting member 30 includes a length L1, a width W, and a pair of angular distances S. The base 31 and the connecting unit 32 and the joint surface 11 of the base 31 and the first hollow support column 10 are fixed by welding or locking. The connection unit 32 is perpendicular to the joint surface 11 of the first hollow support column 10 for fitting into the connection hole 22 of the second hollow support column 20, and the connection unit 32 has at least one fastening block 321 , this embodiment a plurality of fastening blocks 321 disposed in a spaced apart manner, the fastening block 321 having a maximum length L2 that is smaller than a diagonal distance S of the assembly holes 22 of the second hollow support column 20, and the maximum length The length L2 is slightly larger than the length L1 of the assembly hole 22 of the second hollow support column 20. The two ends of the maximum length L2 are provided with a large abutting end 3211 and a small abutting end 3212. The large abutting end 3211 is semicircular. The diameter D is equal to or smaller than the width W of the assembly hole 22 of the second hollow support column 20. The small abutting end 3212 has a circular arc shape, and the fixing block 321 and the second hollow support A rotation limiting structure is disposed between the inner wall of the assembly hole 22 of the column 20, and the rotation limiting structure is a rotation limiting protrusion 322 disposed on one side of the fastening block 321 in this embodiment.

When the second hollow support column 20 is assembled with the first hollow support column 10, as shown in the fourth figure, the maximum length L2 of the cross section of the fastening block 321 of the connecting unit 32 by the connecting member 30 is smaller than the second hollow. The diagonal distance S of the assembly hole 22 of the support post 20, and the diameter D of the fastening block 321 of the connecting member 32 of the connecting member 30 to the end 3211 is equal to or smaller than the width of the assembly hole 22 of the second hollow support post 20. W, the connecting hole 22 of the second hollow support column 20 and the connecting unit 32 of the connecting member 30 are sleeved at an oblique angle, so that the small abutting end 3212 of the fixing block 321 of the connecting unit 32 is biased toward the second hollow supporting column A corner of the set of holes 22 of the group 20, and as shown in the fifth figure, the maximum length L2 of the section of the fixing block 321 of the connecting unit 32 of the connecting member 30 is slightly larger than the connecting hole of the second hollow supporting column 20. The length L1 of the second hollow support post 20 and the connecting unit 32 of the connecting member 30 are reversed, so that the large abutting end 3211 and the small abutting end 3212 of the securing block 321 of the connecting unit 32 are forced against each other. The intermediate points of the two wall faces in the longitudinal direction L1 of the set hole 22 of the second hollow support column 20 are tightly fitted and locked, and the fixing block 321 Rotation limiting protrusion portion 322 of the card against the second set of hollow support column 20 of the jack 22 a wall surface in the width direction W, forming a three-point positioning, that is, as shown in the sixth and seventh figures, the second hollow support column 20 is vertically assembled to the first hollow support column 10, thereby forming a frame body .

In addition, as shown in the eighth, ninth, and tenth views, in order to avoid the machining error of the second hollow support column 20, the length L1 of the assembly hole 22 is increased, so that the connecting unit 32 is clamped to the block 321 The large abutting end 3211 and the small abutting end 3212 can not be surely pressed against the intermediate point of the two wall faces in the longitudinal direction L1 of the connecting hole 22 of the second hollow supporting column 20, and the frame-free quick-locking structure of the frame of the present invention At least one fastening block 321 of the connecting unit 32 can also be provided with two fixing pieces 321A, a movable piece 321B is interposed between the two fixing pieces 321A, and a pair of the connecting unit 32 is screwed to be active. The bolt 321C of the piece 321B is used to move the movable piece 321B by the bolt 321C, so that the movable piece 321b protrudes a part of the outer side of the two fixing pieces 321a, thereby adjusting the maximum length L2 of the fixing block 321 so that the connecting unit 32 is clamped. When the large abutting end 3211 and the small abutting end 3212 of the block 321 cause the above-mentioned machining error in the second hollow supporting column 20, the two walls of the longitudinal direction L1 of the connecting hole 22 of the second hollow supporting column 20 can still be surely pressed. Click tight to fit.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. The frame-free screw-free quick assembly structure of the invention has a first hollow support column 10 and a second hollow support column 20, which are assembled by a sleeve and a positive rotation mode, without using a tool and a screw lock component. The assembly action is convenient and fast, and the screw-locking element is not exposed after the assembly, and the second hollow support post 20 is just engaged and aligned with the seat body 31 of the connecting member 30, so that a flat appearance can be obtained.

2. The frame-free screw-free quick assembly structure of the invention has the connector 30 can be mass-produced, and the first hollow support column 10 and the second hollow support column 20 do not need to be played during the production process. Holes, tapping or placement of nuts are welded, and the manufacturing cost of Trent is reduced.

10‧‧‧First hollow support column

11‧‧‧ joint surface

20‧‧‧Second hollow support column

21‧‧‧ group end

22‧‧‧Group holes

30‧‧‧Connecting parts

31‧‧‧

32‧‧‧ Connection unit

321‧‧‧Clock block

3211‧‧‧About the end

3212‧‧‧Small end

322‧‧‧Rotary limit convex

Claims (8)

A frame-free screw-free quick assembly structure comprises: a first hollow support column having at least one joint surface; a second hollow support column having at least one set of ends, wherein the end faces of the set of ends are provided with a quadrilateral group a connecting hole having a length, a width and a pair of angular distances; and a connecting member comprising a body and a connecting unit extending from the seat body, the seat body and the first hollow supporting column The connecting unit is fixed, the connecting unit is perpendicular to the joint surface of the first hollow supporting column, and is connected to the connecting hole of the second hollow supporting column. The connecting unit has at least one clamping block, and the connecting unit has a fastening block. The block section has a maximum length which is smaller than a diagonal distance of the set of holes, and the maximum length is slightly larger than the length of the set of holes, and both ends of the maximum length are provided with a large abutting end and a small abutment a rotation limiting structure is disposed between the fastening block and the inner wall of the connecting hole of the second hollow supporting column; and the connecting unit of the second hollow supporting column and the connecting unit of the connecting member are inclined at an angle And then turn it back to make the connection list The large abutting end of the clamping block and the small abutting end are pressed against the two wall surfaces of the second hollow supporting column in the longitudinal direction of the connecting hole, and the two hollow walls are tightly engaged with the limit of the rotation limiting structure, so that the second hollow supporting column Vertically connected to the first hollow support column. The frame-free screw-free quick assembly structure according to claim 1, wherein the seat body of the connecting member corresponds to the cross-sectional shape of the second hollow support column. The frame-free screw-free quick-connecting structure according to the first aspect of the invention, wherein the joint surface of the connecting body and the first hollow supporting column is fixed by welding or locking. The frame-free screw-free quick assembly structure according to the first aspect of the invention, wherein the base body and the connecting unit of the connecting member are fixed by welding or locking. The frame-free screw-free quick assembly structure according to claim 1, wherein the large abutting end of the fastening block of the connecting member is semi-circular and has a diameter equal to or smaller than the second hollow. The width of the set of holes in the support column. The frame-free screw-free quick assembly structure according to claim 1, wherein the small abutting end of the fastening block of the connecting member has a circular arc shape. The frame-free screw-free quick assembly structure according to the first aspect of the invention, wherein the rotation limit structure is a rotation limit protrusion disposed on one side of the fastening block. The frame-free screw-free quick-connecting structure according to the first aspect of the invention, wherein at least one fastening block of the connecting unit is provided with two fixing pieces, and a movable piece is sandwiched between the two fixed pieces, and A bolt for the movable piece is screwed on the connecting unit, and the movable piece can be pushed by the bolt to adjust the maximum length of the fixing block.