Frame with connecting and positioning structure

Description

CROSS-REFERENCE TO RELATED U.S. APPLICATIONS

Not applicable.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT

Not applicable.

REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC

Not applicable.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a frame, and more particularly to an innovative structure of a frame with connecting and positioning structure.

2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98

Rack products are very common in daily life and are used for placing and storing various items such as daily necessities, books, tools, etc. to facilitate access and make the surrounding more tidy and beautiful.

At present, the rack products on the market are quite diverse, and are usually assembled from supporting columns, frames, and laminates. However, the actual use experience of such a rack structure type still reveals the following problems. The components of the conventional rack are usually fixed by screws, so that such a combination method not only leads to a more complex assembly/disassembly process, but also takes a lot of assembly time. Furthermore, if the components of the conventional rack are fixed by welding, then the supporting columns, frames, and laminates can no longer be adjusted and replaced. It is difficult to meet the different needs of consumers, and there is a need for improvement.

BRIEF SUMMARY OF THE INVENTION

Based on the foregoing objective, the present invention provides a frame with connecting and positioning structure. The frame has a plurality of cross bars and a plurality of vertical bars, and the cross bars and the vertical bars are correspondingly connected through the connecting and positioning structure. The connecting and positioning structure comprises: a fixing seat which is fixed to the end of the cross bar and has a plate body for covering the end face of the cross bar; a fitting groove which is provided on the fixing seat and its plate body; one end of the fitting groove is extended toward the bottom edge of the cross bar to form an opening end, and the fitting groove is in an inner-wide and outer-narrow structure type along the axial direction of the cross bar; an embedded block provided for embedding in the retaining groove of the vertical bar; a plug-in column which is connected with the embedded block, and a shrinkage convex portion is extended at an end of the plug-in column connected to the embedded block; a step portion is formed between the shrinkage convex portion and the plug-in column; the shrinkage convex portion is used to embed into the retaining groove, so that the plug-in column in unable to rotate relative to the vertical bar; further, the step portion rests on the wall of the opening of the retaining groove, so that the step portion and the embedded block are retained to the wall of the opening of the retaining groove; a fitting convex portion is connected to the other end of the plug-in column, and the fitting convex portion and the plug-in column coincide with the fitting groove, showing an inner-wide and outer-narrow structure pattern, for inserting into the fitting groove in a tight fit state; and a fixing member penetrating the embedded block, the fitting convex portion, and the plug-in column to connect them together.

With this innovative and unique design, in comparison with the prior art, due to the structural design of the abutment surface of the plug-in column corresponding to the closed end of the fitting groove, insertion of the fitting convex portion into the fitting groove is achieved to realize the oriented combination fool proof effect. In addition, the cross bars and the vertical bars are connected through the connecting and positioning structure without requiring any hand tools. Thus, assembly and disassembly can be easily and quickly achieved to attain the objective of saving time and convenience, which is particularly practical and progressive.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a three-dimensional assembly diagram of the first embodiment of the present invention.

FIG. 2 is a partial exploded diagram of FIG. 1.

FIG. 3 shows a schematic diagram of FIG. 2 from another angle of view.

FIG. 4 is a partial assembly sectional view of FIG. 1.

FIG. 5 is the first embodiment of placing bearing plate in FIG. 1.

FIG. 6 is the second embodiment of placing bearing plate in FIG. 2.

FIG. 7 is the third embodiment of placing bearing plate in FIG. 3.

FIG. 8 is a three-dimensional assembly diagram of the second embodiment of the present invention.

FIG. 9 is a three-dimensional assembly diagram of the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 4, which are the first embodiment of a frame with connecting and positioning structure of the present invention. However, this embodiment is for illustrative purposes only, and is not limited by the patent application. The frame 10 has a plurality of cross bars 11 and a plurality of vertical bars 12, and the cross bars 11 and the vertical bars 12 are correspondingly connected through the connecting and positioning structure 20 without requiring any hand tools. Assembly and disassembly can be easily and quickly achieved to attain the objective of saving time and convenience. The connecting and positioning structure 20 mainly comprises: a fixing seat 21 fixed to the end of the cross bar 11 and having a plate body 211 for covering the end face of the cross bar 11; a fitting groove 212 provided on the fixing seat 21 and its plate body 211; one end of the fitting groove 212 is extended toward the bottom edge of the cross bar 11 to form an opening end 213, and the fitting groove 212 is in an inner-wide and outer-narrow structure type along the axial direction of the cross bar 11; an embedded block 22 for embedding in the retaining groove 121 of the vertical bar 12; a plug-in column 23 which is connected with the embedded block 22, and a shrinkage convex portion 231 is extended at an end of the plug-in column 23 connected to the embedded block 22; a step portion 232 is formed between the shrinkage convex portion 231 and the plug-in column 23; the shrinkage convex portion 231 is used to embed into the retaining groove 121; as the shrinkage convex portion 231 is limited by the wall 122 of the opening of the retaining groove 121, the plug-in column 23 in unable to rotate relative to the vertical bar 12; further, the step portion 232 rests on the wall 122 of the opening of the retaining groove 121, so that the step portion 232 and the embedded block 22 are retained to the wall 122 of the opening of the retaining groove 121; a fitting convex portion 24 is connected to the other end of the plug-in column 23, and the fitting convex portion 24 and the plug-in column 23 coincide with the fitting groove 212, showing an inner-wide and outer-narrow structure pattern, for inserting into the fitting groove 212 in a tight fit state; and a fixing member 25 penetrating the embedded block 22, the fitting convex portion 24, and the plug-in column 23 to connect them together.

In this embodiment, a second shrinkage convex portion 214 is disposed at a position near the closed end 217 of the plate body 211 of the fixing seat 21 for inserting into the retaining groove 121. Because the second shrinkage convex portion 214 is limited by the wall 122 of the opening of the retaining groove 121, the fixing seat 21 cannot be deflected relative to the vertical bar 12. In addition, a sleeve part 215 is extended from the plate body 211 of the fixing seat 21 towards the inside of the cross bar 11, and a buckle part 216 is protruded from the bottom edge of the sleeve part 215. The inner wall of the cross rod 11 has a positioning hole 111 for the buckle part 216 to be embedded.

In this embodiment, the other end of the fitting groove 212 away from the opening end 213 extends inwardly along the radial direction of the cross bar 11 to form a closed end 217 in a concave arc shape. The closed end 217 of the fitting groove 212 is in a concave arc shape, and the plug-in column 23 has a convex arc-shaped abutment surface 233 corresponding to the closed end 217. In this way, due to the structural design of the abutment surface 233 of the plug-in column 23 corresponding to the closed end 217 of the fitting groove 212, insertion of the fitting convex portion 24 into the fitting groove 212 is achieved to realize the oriented combination fool proof effect.

In this embodiment, a positioning protrusion 241 is formed on the end face of the fitting convex portion 24 abutted against the bottom of the fitting groove 212, and a positioning groove 218 is formed on the groove wall of the fitting groove 212 adjacent to the opening end 213. The positioning protrusion 241 is selectively embedded in the positioning groove 218 to make the fitting convex portion 24 positioned in the fixing seat 21. Furthermore, a guide slope 219 is formed on the groove wall of the fitting groove 212 adjacent to the opening end 213, so that when the fixing seat 21 is inserted into the fitting groove 212, the positioning protrusion 241 is aligned with the guide slope 219 and guided by the guide slope 219 to allow the fixing seat 21 to smoothly and quickly insert into the fitting groove 212.

As shown in FIGS. 5 to 7, the frame 10 is used for installation a bearing plate 30. After the installation, it provides the function of placing and storage. The type of the bearing plate 30 and its assembly method can be configured according to the user's needs.

FIG. 8 shows the second embodiment of the present invention. The main difference from the first embodiment is that the frame 10 can be further assembled into a rack through the extra cross bars 11 or vertical bars 12, and the connecting and positioning structure 20 is located at each corner of the rack. FIG. 9 shows the third embodiment of the present invention. The main difference from the second embodiment is that the frame 10 can form a transversely expanded double-row rack according to the user's needs through the extra cross bars 11 or vertical bars 12