Rebar anchoring joint

Abstract

A rebar anchoring joint includes a joint body and a fusion sacrificial portion formed on one side of the joint body, with the fusion sacrificial portion serving as the part fused to the end of the rebar. The joint body is a non-circular block having a plurality of long-spacing portions and a plurality of short-spacing portions, arranged alternately. The minor axis length of a short-spacing portion to the center of the joint body is slightly greater than or equal to the radius of its adjacent fusion sacrificial portion end, while the major axis length of a long-spacing portion to the center of the joint body is greater than the minor axis length. After the rebar anchoring joint is fused to the end of the rebar, during the rebar construction process, the unequal lengths of the long and short-spacing portions relative to the center of the rectangular joint body allow the rebar to be rotated by an angle, with the short-spacing portions moving closer to the adjacent rebar. This reduces the obstruction of the rebar anchoring joint getting stuck on the adjacent rebar, improving the convenience of rebar operations.

Description

Rebar anchoring joint Technical Field

[0001] This invention relates to a rebar anchoring joint fused to the end of a rebar, and more particularly to a rebar anchoring joint that can effectively reduce the likelihood of the rebar anchoring joint getting stuck in other rebars and hindering operations during rebar construction. Prior Technology

[0002] In the process of constructing steel reinforcement in buildings, in order to fix the steel reinforcement in the concrete structure, the existing construction method is to use steel reinforcement anchor joints formed by friction welding to the ends of the steel reinforcement. The steel reinforcement anchor joints serve as a base at the ends of the steel reinforcement, so that the steel reinforcement can be stably embedded in the concrete structure.

[0003] However, in the current manufacturing of rebar anchoring joints, most steel bars are extruded and cut into U-shaped blocks of a predetermined thickness, which are then machined to form the rebar anchoring joint of a predetermined shape. The rebar anchoring joint has a fusion sacrificial portion on one side, which is used to rub and fuse with the end of the rebar, and a solid portion protruding from the end of the rebar in the rebar anchoring joint provides a concrete-covered and gripped area.

[0004] When the rebar anchoring joint is friction-fused to the end of the rebar, during the construction of the building's rebar structure, because the existing rebar anchoring joint is a circular block, the end of the rebar is fused to the center of one side of the rebar anchoring joint. The periphery of the circular block of the rebar anchoring joint is equidistant from the center of the rebar and is greater than the radius of the rebar. Therefore, the rebar anchoring joint at the end of the rebar is located in the rebar cage, and the rebar anchoring joint is easy to get stuck on the adjacent rebar below, making it difficult for workers to move the rebar and causing difficulties in the construction of the rebar structure. Summary of the Invention

[0005] The purpose of this invention is to provide a rebar anchoring joint that solves the technical problem in current rebar construction operations where the rebar anchoring joint fused to the end of a long strip of rebar easily gets stuck on adjacent rebars, hindering the rebar construction operation.

[0006] To achieve the aforementioned objective, this invention proposes a rebar anchoring joint capable of frictionally fusion welding to the end of a rebar. The rebar anchoring joint includes a joint body and a welding sacrificial portion. The joint body has a welding side and a back side on opposite sides along a centerline passing through a center. The welding sacrificial portion is formed at the center of the welding side of the joint body, wherein: The connector body is a non-circular block with a plurality of long-distance portions and a plurality of short-distance portions. The long-distance portions and the short-distance portions are arranged alternately. The short axis of a short-distance portion to the center of the connector body is close to or equal to the radius of one end of the short-distance portion adjacent to the welding sacrificial portion. The long axis of a long-distance portion to the center of the connector body is greater than the short axis.

[0007] The main feature of this novel rebar anchoring joint is that the joint body is a non-circular block with staggered long and short sections. The short axis of the short section to the center of the joint body is close to or equal to the radius of its adjacent fusion sacrificial end, while the long axis of the long section to the center of the joint body is greater than the short axis. Therefore, after the rebar anchoring joint is fused to the end of the rebar, during the rebar construction process, the rectangular joint body with its unequally spaced long and short sections allows the rebar to be rotated at an angle, moving the short section closer to the adjacent rebar. This reduces the obstruction of the rebar anchoring joint getting stuck on the adjacent rebar, improving the convenience of rebar work.

[0008] Furthermore, this novel rebar anchoring joint further utilizes the central position of the back side of the joint body to form a circular block-shaped protrusion that protrudes outward along the central axis, so that the non-circular rebar anchoring joint can be easily clamped by the friction welding machine through the circular block-shaped protrusion to perform the rebar friction welding operation. Simple Explanation of the Diagram

[0009] Figure 1 is a perspective view of an embodiment of the novel rebar anchoring joint. Figure 2 is a side view of an embodiment of the rebar anchoring joint shown in Figure 1. Figure 3 is a schematic end view of the embodiment of the rebar anchoring joint shown in Figure 1. Figure 4 is a schematic diagram of another embodiment of the novel rebar anchoring joint. Figure 5 is a side view of another embodiment of the rebar anchoring joint shown in Figure 4, showing friction welding with the rebar. Figure 6 is a schematic diagram of the usage state of this new type of rebar anchoring joint after it is fused to the end of the rebar during rebar construction. Figure 7 is a schematic diagram of the operation of rotating the steel bar during the construction of the new type of steel bar anchoring joint shown in Figure 6 after it is fused to the end of the steel bar. Implementation

[0010] Figure 1 illustrates an embodiment of the present invention, a rebar anchoring joint 1. The rebar anchoring joint 1 includes a joint body 10 and a welding sacrificial portion 11. The joint body 10 has a welding side 101 and a back side 102 on opposite sides along a center line 100 passing through its center O. The welding sacrificial portion 11 is formed in the center of the welding side 101 of the joint body 10, and the larger diameter end of the welding sacrificial portion 11 is connected to the center of the welding side 101 of the joint body 10, and can be used as a part for friction welding to the end of a rebar.

[0011] As shown in Figures 1 and 3, the joint body 10 is a non-circular block with a plurality of long-distance portions 103 and a plurality of short-distance portions 104. The long-distance portions 103 and the short-distance portions 104 are arranged alternately. The major axis length D1 of the long-distance portion 103 to the center O of the joint body 10 is greater than the minor axis length D2. The minor axis length D2 of the short-distance portion 104 to the center O of the joint body 10 is close to or equal to the radius R of one end of its adjacent welding sacrifice portion 11. The distance S from the outer side of the short-distance portion 104 to the welding sacrifice portion 11 is less than the radius R of the welding sacrifice portion 11, that is, the distance S from the outer side of the short-distance portion 104 to the welding sacrifice portion 11 is also less than the radius of the reinforcing bar.

[0012] In the embodiments shown in Figures 1 and 3, the connector body 10 is a rectangular block with a major axis L1 and a minor axis L2 orthogonal to the center O of the connector body 10. The two sides of the connector body 10 along the major axis L1 with respect to the center O are the long-distance portions 103, and the two sides of the connector body 10 along the minor axis L2 with respect to the center O are the short-distance portions 104. The outer edge of the long-distance portion 103 can be a straight edge or an arc edge. In the embodiments shown in Figures 1 and 3, the outer edge of the long-distance portion 103 is shown to be an arc edge, but it is not limited thereto.

[0013] When manufacturing the aforementioned rebar anchoring joint 1 with a rectangular joint body 10, it can follow the existing manufacturing method of rebar anchoring joint 1, that is, select an extruded cylindrical steel bar, cut it into a U-shaped block of a predetermined thickness, and then form a rectangular body of a predetermined shape by machining methods such as turning.

[0014] The aforementioned rectangular joint body 10 is only one specific feasible embodiment of the novel rebar anchoring joint 1. The joint body 10 can also be changed to other non-circular geometric shapes, such as triangles, squares, or other polygons, or even ellipses, etc., and is not limited to the embodiment shown in FIG1. ​​Wherein, when the joint body 10 is a triangle, square, or other polygon, the length from each corner to the center O of the joint body 10 is greater than the length from the middle of each side to the center O of the joint body 10, that is, each corner portion is the long distance portion 103, and the middle portion of each side is the short distance portion 104.

[0015] As shown in Figure 4, in another embodiment, the new type of rebar anchoring joint 1 can further form a circular protrusion 12 protruding outward along the central O axis at the center of the back side 102 of the joint body 10, as shown in Figure 5. This allows the non-circular rebar anchoring joint 1 to have a part that is easy for the clamping mechanism 30 of the friction welding machine 3 to clamp centrally through the circular protrusion 12, so as to perform the friction welding operation between the rebar 2 and the rebar anchoring joint 1.

[0016] Regarding the application of this novel rebar anchoring joint 1, as shown in Figures 6 and 7, the rebar anchoring joint 1 is fused to the end of the rebar 2. During the construction of the building's rebar structure, due to the non-circular joint body 10 having an unequal distance between its center O, the long distance portion 103 and the short distance portion 104, although the rebar anchoring joint 1 fused to the end of the rebar 2 droops due to the gravity of the lateral placement of the rebar 2, the operator only needs to rotate the rebar 2 by an angle, and rotate the short distance portion 104 to be close to the adjacent rebar 2. Since the distance from the short distance portion 104 to the fusion sacrificial portion 11 is less than the radius of the rebar 2, the obstruction of the rebar anchoring joint 1 being stuck on the adjacent rebar 2 can be reduced, allowing the operator to easily operate the rebar 2.

[0017] 1: Rebar anchorage joint 10: Connector body O: Center 100: Center line 101: Welding side 102: Dorsal side 103: Long section 104: Short-range part L1: Long axis L2: Short axis D1: Major axis length D2: Minor axis length 11: Welding Sacrificial Part R: Radius of the end of the welded sacrificial portion S: Distance from the short section to the side of the welding sacrificial section 12: round block convex part 2: Reinforcing steel 3: Friction welding equipment 30: Clamping mechanism

Claims

1. A rebar anchoring joint capable of frictionally fusion welding to the end of a rebar, the rebar anchoring joint comprising a joint body and a welding sacrificial portion, the joint body having a welding side and a back side respectively on opposite sides along a centerline passing through a center, the welding sacrificial portion being formed at the center of the welding side of the joint body, wherein: The connector body is a non-circular block with a plurality of long-distance portions and a plurality of short-distance portions. The long-distance portions and the short-distance portions are arranged alternately. The short axis of a short-distance portion to the center of the connector body is close to or equal to the radius of one end of the short-distance portion adjacent to the welding sacrificial portion. The long axis of a long-distance portion to the center of the connector body is greater than the short axis.

2. The reinforcing bar anchorage joint as described in claim 1, wherein, The connector body is a rectangular block with a major axis and a minor axis orthogonal to the center of the connector body. The two sides of the connector body along the major axis relative to the center are the long-distance portions, and the two sides of the connector body along the minor axis relative to the center are the short-distance portions.

3. The reinforcing bar anchorage joint as described in claim 2, wherein, The outer edge of the long distance portion is a straight edge or an arc edge.

4. The reinforcing bar anchorage joint as described in any one of claims 1 to 3, wherein, The sacrificial part of the weld is a truncated cone. The area of ​​the small-diameter end of the sacrificial part corresponds to the cross-sectional area of ​​the reinforcing bar. The large-diameter end of the sacrificial part is connected to the weld side of the joint body.

5. The reinforcing bar anchorage joint as described in any one of claims 1 to 3, wherein, A circular protrusion is formed on the back center of the connector body, extending outward along the central axis.

6. The reinforcing bar anchorage joint as described in claim 4, wherein, A circular protrusion is formed on the back center of the connector body, extending outward along the central axis.

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