CN217680020U

CN217680020U - Prestressed indented steel strand

Info

Publication number: CN217680020U
Application number: CN202123433441.5U
Authority: CN
Inventors: 刘菲菲; 朱绍汉
Original assignee: Hebei Yiwangda New Building Materials Technology Co ltd
Current assignee: Hebei Yiwangda New Building Materials Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-10-28
Anticipated expiration: 2031-12-30

Abstract

The utility model belongs to the technical field of, a prestressing force nick steel strand wires is disclosed, including the stranded conductor, the side of stranded conductor accompanies the elastic tube, the outer end parcel of stranded conductor has the protective sheath, the outer end parcel of protective sheath has the constraint ring, the stranded conductor includes the sub-line, the mutual spiral of sub-line interweaves, the elastic tube extrudees with the sub-line each other, the sub-line is provided with five, five the sub-line interweaves, the elastic tube includes the body, the spout has been seted up to the side of body, the outer wall and the sub-line sliding contact of body, the protective sheath is including the cover body, the cover body parcel is at the outer wall of sub-line, the linking gap has been seted up to the side of the cover body, the constraint ring includes the ring body. This application stranded conductor receives external force to pull the back, utilizes the elasticity shrink of elasticity pipe, for the stranded conductor provides more modes of pulling the deformation space, has improved the whole elasticity of steel strand wires to the possibility that the steel strand wires were broken has been reduced.

Description

Prestressed indented steel strand

Technical Field

The application belongs to the technical field of steel strand wires, especially relates to prestressing force nicked steel strand wires.

Background

The prestressed steel strand is a stranded steel cable composed of 2, 3, 7 or 19 high-strength steel wires, is subjected to stress relief treatment (stabilization treatment), is suitable for prestressed concrete and similar applications, and is mainly characterized by high strength and good relaxation performance, and is straightened when unfolded, and spiral traces are engraved on sub-lines of the prestressed indented steel strand.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: the conventional prestressed indented steel strand is low in stretching amplitude, and the buffer distance is insufficient after the conventional prestressed indented steel strand is pulled by harmful force, so that the conventional prestressed indented steel strand is easy to break.

To this end, we propose prestressed scored steel strands solving the above problems.

SUMMERY OF THE UTILITY MODEL

The purpose of the application is to solve the problem that a conventional prestressed indented steel strand is easy to break in the prior art, and the prestressed indented steel strand is provided.

In order to achieve the purpose, the following technical scheme is adopted in the application: prestressing force nick steel strand wires, including the stranded conductor, the side of stranded conductor accompanies the elastic tube, the outer end parcel of stranded conductor has the protective sheath, the outer end parcel of protective sheath has the constraint ring.

After the stranded wire is pulled by an external force, the elastic force of the elastic tube is utilized to contract, more traction deformation spaces are provided for the stranded wire, the overall elasticity of the steel stranded wire is improved, and the possibility that the steel stranded wire is broken by pulling is reduced.

Preferably, the stranded wire comprises sub-wires which are spirally interwoven with each other, and the elastic tube and the sub-wires are mutually extruded.

The elastic force of the stranded wire is increased by adopting a mode of interweaving sub-wires spirally.

Preferably, five sub-lines are arranged and are interwoven with one another.

The stability is guaranteed by adopting a mode of interweaving five sub-lines.

Preferably, the elastic tube comprises a tube body, a sliding groove is formed in the side end of the tube body, and the outer wall of the tube body is in sliding contact with the sub-line.

One end of the pipe body is guided to contract inwards by the sliding groove, so that the elastic range of the pipe body is increased, the inward contraction range of the sub-line is increased, and the elastic range of the stranded wire is further improved.

Preferably, the protective sleeve comprises a sleeve body, and the sleeve body is wrapped on the outer wall of the sub-line.

The sleeve body is adopted to restrain the stranded wire to form an hourglass shape, so that the stranded wire is convenient to contract inwards after being stretched to increase the length.

Preferably, the side end of the sleeve body is provided with a connecting gap.

The sleeve body is sleeved on the outer side of the stranded wire by opening the connecting gap, so that the sleeve body is convenient to install.

Preferably, the binding ring comprises a ring body, and the ring body is sleeved and fixed at the outer end of the sleeve body.

The stability of the appearance of the sleeve body is improved by the way that the ring body is sleeved at the outer end of the sleeve body.

Preferably, the side end of the ring body is fixedly connected with a pair of hooks, the hooks are mutually hooked, and solder balls are welded between the hooks and the ring body.

The hook is hung with each other, so that the ring body is conveniently sleeved at the outer end of the sleeve body, and the closed firmness of the ring body is improved by utilizing the solder balls.

To sum up, the technical effect and the advantage of this application: 1. after the stranded wire is pulled by an external force, the elastic force of the elastic tube is utilized to contract, more traction deformation spaces are provided for the stranded wire, the overall elasticity of the steel stranded wire is improved, and the possibility that the steel stranded wire is broken by pulling is reduced.

2. One end of the pipe body is guided to contract inwards by the sliding groove, so that the elastic range of the pipe body is increased, the inward contraction range of the sub-line is increased, and the elastic range of the stranded wire is further improved.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic diagram of a stranded wire structure of the present application;

FIG. 3 is a schematic view of the structure of the spring tube of the present application;

FIG. 4 is a schematic view of the structure of the protective sleeve of the present application;

fig. 5 is a schematic view of a confinement ring structure according to the present application.

In the figure: 1. stranding; 2. an elastic tube; 3. a protective sleeve; 4. a binding ring; 11. a sub-line; 21. a pipe body; 22. a chute; 41. a sleeve body; 42. connecting the gaps; 51. hooking; 52. a solder ball; 53. a ring body.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1, the prestressed indented steel strand comprises a strand 1 and a strand 1, wherein an elastic tube 2 is clamped at the side end of the strand 1, a protective sleeve 3 wraps the outer end of the strand 1, and a binding ring 4 wraps the outer end of the protective sleeve 3. Utilize elasticity pipe 2 to provide outside support elastic force for stranded conductor 1, recycle the fixed protective sheath 3 of constraint ring 4, wrap up stranded conductor 1 through protective sheath 3 for stranded conductor 1 receives external force and pulls the back, can utilize elasticity shrink of elasticity pipe 2, provides more deformation spaces of pulling for stranded conductor 1.

Referring to fig. 2, the stranded wire 1 includes sub-wires 11, the sub-wires 11 are spirally interlaced with each other, and the elastic tube 2 and the sub-wires 11 are extruded with each other. The elasticity of the stranded wire 1 is increased in a way that the sub-wires 11 are spirally interwoven with each other.

Referring to fig. 2, the sub-lines 11 are provided with five, and the five sub-lines 11 are interlaced with each other. The firmness is guaranteed in a mode that the five sub-lines 11 are mutually interwoven.

Referring to fig. 3, the elastic tube 2 includes a tube body 21, a sliding groove 22 is formed at a side end of the tube body 21, and an outer wall of the tube body 21 is in sliding contact with the sub-line 11. When the sub-line 11 presses the pipe body 21 inward, one end of the pipe body 21 is guided to contract inward by the slide groove 22.

Referring to fig. 2 and 4, the protective sheath 3 includes a sheath body 41, and the sheath body 41 is wrapped on the outer wall of the sub-line 11. The stranded wire 1 is bound by the sheath 41 to form an hourglass shape.

Referring to fig. 4, the side end of the sheath 41 is provided with a connecting slit 42. When the cable is installed, the engagement gap 42 is opened to sleeve the sleeve body 41 on the outer side of the stranded wire 1.

Referring to fig. 5, the binding ring 4 includes a ring body 53, and the ring body 53 is sleeved and fixed on the outer end of the sheath body 41. The ring 53 is sleeved on the outer end of the sleeve body 41 to stabilize the shape of the sleeve body 41.

Referring to fig. 5, hooks 51 are fixedly connected to the side ends of the ring body 53, a pair of hooks 51 are provided, the hooks 51 are hooked with each other, and solder balls 52 are welded between the hooks 51 and the ring body 53. The joints of the ring body 53 are hooked to each other by the hook 51.

The working principle is as follows: utilize elasticity pipe 2 to provide outside supporting spring force for stranded conductor 1, recycle restraint ring 4 fixed protective sheath 3, wrap up stranded conductor 1 through protective sheath 3 for stranded conductor 1 receives external force to pull the back, can utilize elasticity shrink of elasticity pipe 2, provides more deformation spaces of pulling for stranded conductor 1.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. Prestressing force nick steel strand wires, including stranded conductor (1), its characterized in that: stranded conductor (1), the side of stranded conductor (1) accompanies elasticity pipe (2), the outer end parcel of stranded conductor (1) has protective sheath (3), the outer end parcel of protective sheath (3) has constraint ring (4).

2. The prestressed indented steel strand of claim 1, wherein: the stranded wire (1) comprises sub-wires (11), the sub-wires (11) are mutually spirally interwoven, and the elastic tube (2) and the sub-wires (11) are mutually extruded.

3. The prestressed scored steel strand of claim 2, wherein: five sub-lines (11) are arranged, and the five sub-lines (11) are mutually interwoven.

4. The prestressed, scored steel strand of claim 2, wherein: the elastic tube (2) comprises a tube body (21), a sliding groove (22) is formed in the side end of the tube body (21), and the outer wall of the tube body (21) is in sliding contact with the sub-line (11).

5. The prestressed scored steel strand of claim 2, wherein: the protective sleeve (3) comprises a sleeve body (41), and the sleeve body (41) wraps the outer wall of the sub-line (11).

6. The prestressed, scored steel strand of claim 5, wherein: the side end of the sleeve body (41) is provided with a connecting gap (42).

7. The prestressed scored steel strand of claim 6, wherein: the binding ring (4) comprises a ring body (53), and the ring body (53) is sleeved and fixed at the outer end of the sleeve body (41).

8. The prestressed scored steel strand of claim 7, wherein: the side end fixedly connected with couple (51) of ring body (53), couple (51) are provided with a pair ofly, couple (51) articulate each other, the welding has solder ball (52) between couple (51) and ring body (53).