Steel strand quick connection joint of telescopic reinforcement cage

Abstract

The utility model provides a steel strand quick connector for a telescopic reinforcement cage, which does not need to be prefabricated at the end part of the steel strand of the telescopic reinforcement cage and can be used for directly and quickly connecting the steel strand of the telescopic reinforcement cage on a construction site. The steel strand quick connecting joint of the telescopic reinforcement cage comprises a pressing plate and a connecting fastener, the cross section of the pressing plate is semicircular; the two pressing plates are in butt joint to form a pressing hole, and the butt joint ends of the steel strand A and the steel strand B to be connected are located in the pressing hole; and the connecting fastener is used for pressing the two pressing plates, so that the butt joint ends of the steel strand A and the steel strand B are clamped.

Description

Technical Field

[0001] The utility model relates to a connection joint, in particular to a steel strand quick connection joint of a telescopic steel cage, belonging to the technical field of telescopic steel cage connection. Background Art

[0002] Telescopic steel cage is a commonly used steel processing product in structural engineering, used to reinforce beams, columns, walls and other parts in concrete structures. The telescopic steel cage includes a number of coaxially arranged annular stirrups evenly spaced along the axial direction and a number of steel strands as flexible vertical bars evenly spaced along the circumference of the annular stirrups.

[0003] At present, the telescopic steel cage needs to be extended on site to meet the needs of deeper cast-in-place piles; when extending, the connection of the steel strands of the two butted telescopic steel cages is mainly through the prefabricated joints at both ends, and the joints are pressed on the ends of the steel strands by hydraulic clamps. The workload of prefabricating joints at the ends of the steel strands is large, and they need to be prefabricated in the workshop in advance. Utility Model Content

[0004] In view of this, the utility model provides a steel strand quick-connect joint for a telescopic steel cage, which does not need to be prefabricated at the ends of the steel strands of the telescopic steel cage and can quickly connect the steel strands directly at the construction site.

[0005] The technical solution of the utility model is: a steel strand quick connection joint of a telescopic steel cage, comprising: a pressing plate and a connecting fastener;

[0006] The cross section of the clamping plate is semicircular; the two clamping plates are butt-jointed to form a clamping hole, and the butt ends of the steel strands A and B to be connected are located in the clamping hole;

[0007] The connecting fastener is used to compress the two clamping plates to clamp the butt ends of the steel strands A and B.

[0008] Preferably: a rubber sheet is provided on the inner surface of the pressing plate.

[0009] Preferably: the connecting fastener comprises a rotating handle and a bolt and nut;

[0010] Wing plates are provided on both lateral sides of the clamping plate. When the two clamping plates are butt-jointed, the wing plates on the corresponding sides are butt-jointed; threaded holes for installing the bolts and nuts and threaded holes for installing the rotating handle are provided on the wing plates; the bolts and nuts are used for the preliminary connection of the two clamping plates; the rotating handle is used to achieve further clamping of the two clamping plates.

[0011] Preferably: one end of the rotating handle is a rectangular block, which is mounted on the clamping plate through a fastener;

[0012] The end surface of the rectangular block in contact with the clamping plate includes a plane and an inclined surface, and the inclined surface is formed by the increasing thickness of the rectangular block; initially, the plane of the rectangular block at the end of the rotating handle contacts the clamping plate; after the rotating handle is rotated to a set angle, the inclined surface of the rectangular block at its end contacts the clamping plate.

[0013] Preferably, a rotating handle is correspondingly provided for each wing plate, so that the two rotating handles located on the wing plates on the same side of the two pressing plates are arranged one above and one below.

[0014] Beneficial effects:

[0015] (1) The steel strand quick-connect joint of the telescopic steel cage of the utility model does not need to be prefabricated at the ends of the steel strands of the telescopic steel cage, and the steel strands can be quickly connected directly at the construction site.

[0016] (2) In the steel strand quick-connect joint of the telescopic steel cage of the utility model, after the two clamping plates are initially clamped and connected by bolts and nuts, the two clamping plates are further clamped by rotating the handle, so that the two steel strands are firmly clamped at the connecting ends, ensuring a reliable connection; the operation is simple, and the rotating handle rotates relative to each other without the need for additional support.

[0017] (3) In the quick-connect joint of the telescopic steel cage of the utility model, a rubber sheet is arranged on the inner surface of the clamping plate. During the clamping process, the rubber sheet can firmly adhere to the steel strands, which is beneficial to improving the friction coefficient and making the connection of the steel strands more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a steel strand quick connection joint of a telescopic steel cage of the utility model;

[0019] Figure 2 It is a schematic diagram of the tightening state of the steel strand quick connection joint of the telescopic steel cage of the utility model;

[0020] Figure 3 and Figure 4 Schematic diagram of the structure of the rotating handle at different viewing angles.

[0021] Among them: 1- clamping plate; 2- rotating handle; 3- steel strand A; 4- steel strand B; 5- bolts and nuts. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] This embodiment provides a steel strand quick-connect joint for a telescopic steel cage, which does not need to be prefabricated at the ends of the steel strands of the telescopic steel cage and can achieve quick connection of two steel strands directly at the construction site.

[0024] For the convenience of description, the two butted steel strands are respectively steel strand A3 and steel strand B4; the steel strand A3 and steel strand B4 can be quickly connected through the steel strand quick connection joint.

[0025] like Figure 1 and Figure 2 As shown, the steel strand quick-connect joint of the telescopic steel cage includes: a clamping plate 1 and a connecting fastener; the clamping plate 1 is a thick plate (referring to a plate with a set thickness) with a semicircular cross-section; the clamping plate 1 has a set length in the longitudinal direction so that it can wrap the butt joint of the two steel strands; when in use, the butt joint ends of the steel strands A3 and the steel strands B4 are located in the clamping holes formed after the two clamping plates 1 are butt jointed, and the connecting fastener is used to clamp the two clamping plates 1 so that they can reliably clamp the two steel strands.

[0026] As an example, a rubber sheet is provided on the inner surface of the clamping plate 1 (i.e., the semicircular inner arc surface). During the docking and clamping process of the two clamping plates 1, the rubber sheet can firmly fit the steel strands, which is beneficial to increase the friction coefficient and make the connection between the two steel strands more secure.

[0027] As an example, the connecting fasteners include a rotating handle 2 and bolts and nuts 5; wing plates are arranged on both sides of the clamping plate 1 in the horizontal direction. When the two clamping plates 1 are butt-jointed, the wing plates on the corresponding sides are butt-jointed; three threaded holes are arranged in the longitudinal direction on the upper edge of each wing plate. After the two clamping plates 1 are butt-jointed, the bolts and nuts 5 are screwed on the threaded holes in the middle of the wing plates on both sides to achieve the initial compression and docking of the two clamping plates 1; the threaded holes at both ends of the wing plate are used to install the rotating handle 2 through the bolts and nuts, and the two clamping plates 1 are further clamped by the rotating handle 2, so that they can firmly clamp the butt ends of the steel strands A3 and B4.

[0028] In this example, four rotating handles 2 are provided, one for each wing plate, so that the two rotating handles 2 on the two wing plates on the same side are arranged one above the other, and further relative compression of the two clamping plates 1 is achieved by rotating the two rotating handles 2. Figure 3 and Figure 4As shown, one end of the rotating handle 2 is a rectangular block, which is installed on the clamping plate 1 by bolts and nuts; the end face of the rectangular block at this end of the rotating handle 2 that contacts the clamping plate 1 includes a plane and an inclined surface, and the inclined surface is formed by the increasing thickness of the rectangular block; initially, the plane of the rectangular block at the end of the rotating handle 2 contacts the clamping plate 1; when the rotating handle 2 is rotated to a set angle, the inclined surface of the rectangular block at its end contacts the clamping plate 1, so that the distance between the two clamping plates 1 is further reduced, thereby further compressing the butt ends of the steel strands A3 and the steel strands B4, thereby realizing a reliable connection between the two steel strands.

[0029] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A steel strand quick-connect joint for a telescopic steel cage, characterized in that: include: A clamping plate (1) and connecting fasteners; The cross section of the clamping plate (1) is semicircular; after the two clamping plates (1) are butt-jointed, a clamping hole is formed, and the butt ends of the steel strands A (3) and B (4) to be connected are located in the clamping hole; The connecting fastener is used to compress the two clamping plates (1) to clamp the butt ends of the steel strands A (3) and B (4).

2. The steel strand quick-connect joint of the telescopic steel cage according to claim 1, characterized in that: The inner surface of the pressing plate (1) is provided with a rubber sheet.

3. The steel strand quick-connect joint of the telescopic steel cage according to claim 1 or 2, characterized in that: The connecting fastener comprises a rotating handle (2) and a bolt nut (5); The clamping plate (1) is provided with wing plates on both sides in the transverse direction. When the two clamping plates (1) are butted, the wing plates on the corresponding sides are butted. The wing plates are provided with threaded holes for installing the bolts and nuts (5) and threaded holes for installing the rotating handle (2). The bolts and nuts (5) are used for the initial connection of the two clamping plates (1); and the rotating handle (2) is used for further clamping the two clamping plates (1).

4. The steel strand quick-connect joint of the telescopic steel cage according to claim 3, characterized in that: One end of the rotating handle (2) is a rectangular block, which is mounted on the pressing plate (1) via a fastener; The end surface of the rectangular block in contact with the clamping plate (1) comprises a plane and an inclined surface, wherein the inclined surface is formed by increasing thickness of the rectangular block; initially, the plane of the rectangular block at the end of the rotating handle (2) is in contact with the clamping plate (1); after the rotating handle (2) is rotated to a set angle, the inclined surface of the rectangular block at its end is in contact with the clamping plate (1).

5. The steel strand quick-connect joint of the telescopic steel cage according to claim 4, characterized in that: A rotating handle (2) is correspondingly provided for each wing plate, so that the two rotating handles (2) located on the wing plates on the same side of the two pressing plates (1) are arranged one above the other.

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