Self-Locking Rebar Coupler

Abstract

The present invention relates to a novel form of self-locking mechanical rebar coupler which is able to easily couple neighboring rebars by way of an inserting plug welded to one side of the rebar, which penetrates a receiving socket which is welded to another piece of rebar. It is then locked into place by a spring-loaded dowel which penetrates the inserting plug when the inserting plug pushes down a cap at the bottom of the receiving socket which had been holding the spring-loaded dowel in place. The purpose of this coupler is to transfer a load against tensile force and compression force in a stable manner by coupling two separate pieces of rebar and locking them into place. Various diameters of rebar can be used in this self-locking mechanical rebar coupler. The assembly by providing a self-locking rebar coupling, is aimed to reduce the size of rebar components which can be combined together on a construction site and improve construction speed.

Claims

1. A mechanical rebar coupler comprising: a spring-resting cap to hold the dowel in place inside the receiving socket shaft; circular retaining clips at the head of the receiving socket; circular retaining clips to help guide the insertion plug; and, the rebar welded onto into the proper location for penetration of the receiving socket.

2. A self-locking mechanical rebar coupler allowing to couple neighboring rebars: as per claim 2, by way of an inserting plug welded to one side of the rebar; as per claim 2, by inserting plug which penetrates a receiving socket which is welded to another piece of rebar; as per claim 2, rebar locked into place by a spring-loaded dowel; and, as per claim 2, spring-loaded dowel penetrates the inserting plug when the inserting plug pushes down a cap at the bottom of the receiving socket which had been holding the spring-loaded dowel in place.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying figures, where like reference numerals refer to identical or functionally similar elements throughout the separate views, together with the detailed description below, are incorporated in and form part of the specification, and serve to further illustrate embodiments of concepts that include the claimed invention and explain various principles and advantages of those embodiments.

[0024] FIG. 1 is a cross-sectional view of the invention.

[0025] FIG. 2 shows the same parts as FIG. 1 in an isometric view.

[0026] FIG. 3 is conceptual view showing a first piece of rebar according to an embodiment of the present invention;

[0027] FIG. 4 shows the same parts as FIG. 3 in an isometric view;

[0028] FIG. 5 shows a side view of the pin inserted and locked according to another embodiment of the present invention;

[0029] FIG. 6 shows an isometric view of the pin inserted and locked;

[0030] FIG. 7 shows a cutaway view of the plug being inserted;

[0031] FIG. 8 shows a cutaway view of the plug after insertion with the pin dowel locked;

[0032] FIG. 9 shows a see-through view of the plug being inserted according to another embodiment of the present invention;

[0033] FIG. 10 shows a see-through view of the plug after insertion according to another embodiment of the present invention;

[0034] FIG. 11 is an angle view of the invention;

[0035] FIG. 12 is a different angle view of the unit;

[0036] FIG. 13 is a view for showing the length adjustment structure of the coupler body block according to the present invention.

[0037] Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.

[0038] The apparatus and method components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.

DETAILED DESCRIPTION

[0039] Detailed descriptions of the preferred embodiment are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.

[0040] The present invention relates to an advancement in mechanical rebar couplings by means of a self-locking rebar coupling connection.

[0041] The present invention as per its preferred embodiments provide a reinforcing bar mechanical joint that is capable of easy, fast, strong installation that can stably handle loads as well as tensile and compressive forces. The present invention has the follow features for achieving the above object.

[0042] The present invention as per its additional embodiments eliminates the need for additional equipment for processing reinforcing bars during manufacturing and on the construction, site as compared with the background art, and can reduce construction cost and can save time required for construction.

[0043] The assembly as per its additional embodiments makes it possible to rapidly combine rebar by putting the inserting plug inside the receiving socket.

[0044] The assembly as per its additional embodiments, make it possible to construct the reinforcing bars without any additional equipment by the spring-loaded dowel locks the bars together.

[0045] The assembly as per its additional embodiments allows the tubular housing can reduce the impact on the reinforced concrete connection even if there is an external impact while concrete is being poured onto the rebar for curing.

[0046] The assembly as per its additional embodiments causes the presence of the protruding portion of the receiving pocket enables a visual inspection that the insertion has been properly consummated and the reinforcing bars are completely locked, so that the accuracy and safety of the reinforcing bar connection can be verified.

[0047] FIG. 1 is a view that shows all the components of the invention:

[0048] (1) first piece of rebar

[0049] (2) insertion plug

[0050] (3) two identical retaining clips

[0051] (4) cap for accordion spring

[0052] (5) accordion spring

[0053] (6) two identical retaining clips

[0054] (7) receiving socket

[0055] (8) locking pin spring

[0056] (9) locking pin dowel

[0057] (10) stability tube

[0058] (11) second piece of rebar

[0059] FIG. 2 shows the same parts as FIG. 1 in an isometric view.

[0060] FIG. 3 is a view showing a first piece of rebar (1) welded to an insertion plug (2); and a second piece of rebar (11) welded to a receiving socket (7), and also welded to a stability tube (10) around that second piece of rebar, FIG. 3 also shows two identical retaining clips (3) welded together and welded onto a receiving socket (7). Locking pin spring (8) is wrapped around locking pin (9) and held back from insertion by the cap for accordion spring (4) which is held in place by the accordion spring (5). FIG. 3 shows the invention assembled and ready to be combined together on the construction site.

[0061] FIG. 4 shows the same parts as FIG. 3 in an isometric view.

[0062] FIG. 5 shows a side view of the pin inserted and locked

[0063] FIG. 6 shows an isometric view of the pin inserted and locked

[0064] FIG. 7 shows a cutaway view of the plug being inserted

[0065] FIG. 8 shows a cutaway view of the plug after insertion with the pin dowel locked

[0066] FIG. 9 shows a see-through view of the plug being inserted

[0067] FIG. 10 shows a see-through view of the plug after insertion with the pin dowel locked

[0068] FIGS. 11, 12 and 13 show other angles of the unit.

[0069] Having described the invention in detail, those skilled in the art will appreciate that modifications may be made to the invention without departing from its spirit. Therefore, it is not intended that the scope of the invention be limited to the specific embodiment illustrated and described. Rather, it is intended that the scope of this invention be determined by the appended claims and their equivalents.

[0070] The Abstract of the Disclosure is provided to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in various embodiments for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separately claimed subject matter.