CN202391018U - Connector between steel strand and finished deformed bar - Google Patents

Abstract

The utility model discloses a steel strand and fine-rolled threaded steel bar connector, which comprises a steel strand anchor plate, a connecting cylinder, a wedge-shaped clip, a disc spring, a pressure plate and screws; A cylinder with an external thread, the external thread of the cylinder cooperates with the internal thread of the front section of the connecting cylinder; a tapered through hole with a large diameter facing inward is arranged on the steel strand anchor plate along the axial direction; in the tapered through hole There is a wedge-shaped clip adapted to it; a pressure plate is fixed on the steel strand anchor plate at one end of the large-diameter mouth of the tapered through hole through screws; a disc spring is arranged between the pressure plate and the wedge-shaped clip; The rear section of the connecting cylinder is provided with an internal screw hole matching the external thread of the finished rolled threaded steel bar. The utility model has the advantages of simple structure, convenient assembly and reliable operation, and can be applied to segmental lengthening and stretching of steel strands and fine-rolled threaded steel bars in prestressed concrete structures.

Description

Connectors for Steel Strand and Finished Threaded Rebar

technical field

The utility model relates to a device for reliably connecting a steel strand with a finish-rolled threaded steel bar. the

Background technique

Steel strands and precision-rolled threaded steel bars are the two most commonly used prestressed tendons in prestressed concrete structures. These two kinds of prestressed tendons can be lengthened in sections by connectors according to construction needs, but the connectors of the prior art It is only suitable for the connection between steel strands or between finished-rolled rebars, but there is no connector that can connect steel strands and finished-rolled rebars, and it cannot meet the requirements of these two prestressed tendons with different characteristics during engineering construction. connection needs. the

Contents of the invention

The purpose of the present invention is to provide a steel strand and precision-rolled threaded steel bar connector with simple structure, convenient construction and reliable connection. the

The technical scheme of the utility model is: a steel strand and fine-rolled threaded steel bar connector, including a steel strand anchor plate, a connecting cylinder, a wedge-shaped clip, a disc spring, a pressure plate and a screw; the steel strand anchor plate is The outer surface is provided with a cylinder with external thread, and the external thread of the cylinder cooperates with the inner wall thread of the front section of the connecting cylinder; a tapered through hole with a large diameter facing inward is arranged on the steel strand anchor plate along the axial direction; There is a wedge-shaped clip adapted to it in the through-hole; a pressure plate is fixed on the steel strand anchor plate at one end of the large-diameter mouth of the tapered through-hole by screws; a disc spring is arranged between the pressure plate and the wedge-shaped clip ; The rear section of the connecting cylinder is provided with an internal screw hole matching the external thread of the finished rolled threaded steel bar. the

Wherein, a through hole matching the outer diameter of the steel strand is provided on the pressure plate corresponding to the tapered through hole on the anchor plate of the steel strand. the

The beneficial effects of the utility model are: the utility model has a simple structure and is convenient to assemble; the test and practical application of the project prove that the connector works reliably, and can be applied to the steel strand and the fine-rolled threaded steel bar segment in the prestressed concrete structure Extend and stretch. the

Description of drawings

Figure 1 is a front sectional view of an embodiment of the utility model. the

Fig. 2 is a left side view of Fig. 1 . the

The marks in the figure are: 1. Steel strand anchor plate, 2. Connecting cylinder, 3. Clip, 4. Disc spring, 5. Press plate, 6. Screw, 7. Steel strand, 8. Finished threaded steel bar. the

Detailed ways

As shown in Figures 1 and 2, a steel strand and finished-rolled threaded steel bar connector of the utility model includes a steel strand anchor plate 1, a connecting cylinder 2, a wedge-shaped clip 3, a disc spring 4, a pressure plate 5 and a screw 6 . The steel strand anchor plate 1 is a cylinder whose outer wall is provided with external threads, and the external threads of the cylinder are threadedly connected with the inner wall of the front section of the connecting cylinder 2 . On the steel strand anchor plate 1, one or more tapered through-holes with large-diameter openings facing inward are arranged in the axial direction. The resultant force when the wire is stretched is located on the axis of the steel strand anchor plate 1. In this embodiment, there are three tapered through holes. The centers of these three tapered through holes are evenly distributed on the axis of the steel strand anchor plate 1. on the same circle as the periphery of the heart. In each tapered through hole, there is a wedge-shaped clip 3 adapted to it; on the steel strand anchor plate 1 at one end of the large-diameter mouth of the tapered through-hole, a pressure plate 5 is fixed by a screw 6, and on the wedge-shaped clip 3 A disc spring 4 is arranged between the bottom and the pressing plate 5, and the pressing force of the disc spring 4 can be adjusted by rotating the screw 6. A through hole matching the diameter of the steel strand 7 is provided on the pressure plate 5 corresponding to the tapered through hole on the steel strand anchor plate 1 to facilitate the passage of the steel strand 7 . In the rear section of the connecting cylinder 2, an internal screw hole matching the external thread of the finish-rolled threaded steel bar 8 is provided, and the internal screw hole is located on the axis of the connecting cylinder 2. the

working principle:

First insert the steel strand 7 into the tapered through hole of the steel strand anchor plate 1, and install the wedge clip 3 for anchoring, then install the disc spring 4, the pressure plate 5, and fix the pressure plate 5 with the screw 6; by tightening the screw 6 Disc spring 4 is pressed against wedge clip 3. Finally, the steel strand anchor plate 1 and the finished rolled threaded steel bar 8 with the installed steel strand 7 are respectively screwed to predetermined positions from both ends of the connecting cylinder 2 to complete the connection.

Claims (2)

1. steel strand and finish rolling deformed bar connector is characterized in that: comprise steel strand anchor slab (1), connecting cylinder (2), wedge shape intermediate plate (3), dish spring (4), pressing plate (5) and screw (6); Said steel strand anchor slab (1) is externally threaded cylinder for external surface is provided with, and cylindrical external screw thread cooperates with the inner thread of connecting cylinder (2) leading portion; On steel strand anchor slab (1), in axial direction be provided with major diameter mouth conical through-hole inwardly; In conical through-hole, be provided with the wedge shape intermediate plate (3) adaptive with it; Steel strand anchor slab (1) at major diameter mouth one end that is positioned at conical through-hole upward is fixed with pressing plate (5) through screw (6); Between pressing plate (5) and wedge shape intermediate plate (3), be provided with dish spring (4); The back segment of said connecting cylinder (2) is provided with the suitable inner bolt hole of external screw thread with finish rolling deformed bar (8).

2. steel strand according to claim 1 and finish rolling deformed bar connector is characterized in that: said pressing plate (5) go up with steel strand anchor slab (1) on the conical through-hole corresponding section be provided with and the suitable through hole of steel strand (7) external diameter.

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