CN216107800U

CN216107800U - High-strength prestressed steel strand

Info

Publication number: CN216107800U
Application number: CN202122269693.2U
Authority: CN
Inventors: 储文伟
Original assignee: Wuxi Kemao Metal Materials Co ltd
Current assignee: Wuxi Kemao Metal Materials Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-22
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a high-strength prestressed steel strand which comprises a steel strand body, an external protection assembly and a reinforcing assembly, wherein the external protection assembly is fixedly sleeved outside the steel strand body. The steel strand body is formed by twisting a plurality of groups of steel wires, and the steel wires are wrapped by a galvanized layer. According to the utility model, the outer protective sleeve is sleeved outside the steel strand body by using the external protection component, so that the protection effect on the steel strand body is realized, the service life of the steel strand body is prolonged, the steel strand body can be subjected to waterproof and fireproof effects under the cooperation of the reinforcing component, and the zinc coating can enable the steel strand to have better durability, so that the cable using the steel strand as the reinforcing core has strong durability, good prestress effect, tensile resistance and higher strength.

Description

High-strength prestressed steel strand

Technical Field

The utility model relates to the technical field of steel strands, in particular to a high-strength prestressed steel strand.

Background

The stranding is realized by the equiangular speed rotation of a stranded single wire around a stranding shaft and the uniform forward motion of the stranded wire. The stranded wire is commonly used copper and aluminum, and the copper and aluminum wires can be stranded into wire cores of various wire cables with different specifications and sections. High-strength prestressed steel strands are generally applied to reinforcing cores in cable conductors, and the strength of the cable in use can be guaranteed to be higher. The steel strand reinforcing core in the existing cable has low use strength, low tensile strength and poor durability.

The prior art has the following defects: the steel strand reinforcing core in the existing cable is low in use strength, low in tensile strength and poor in durability, the service life of the whole cable is shortened, and the prestress effect is poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high strength prestressed steel strand to solve the above problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high strength prestressing force steel strand wires, includes steel strand wires body, outside protection component and reinforcement component, the fixed cover of outside protection component is established at the steel strand wires body outsidely, reinforcement component inlays and establishes in outside protection component, and reinforcement component and steel strand wires body correspond the setting.

As a further preferred option of the technical scheme, the steel strand body is formed by twisting a plurality of groups of steel wires, and the steel wires are wrapped with a zinc coating.

As a further preferred of this technical scheme, outside protection subassembly includes oversheath, viscose layer and multiunit extension lug, viscose layer fixed mounting is at the oversheath inner wall, the oversheath corresponds the cover and establishes outside the steel strand wires body, the viscose layer corresponds the bonding fixedly through viscose and steel strand wires body, it inlays to establish between viscose layer, oversheath to strengthen the subassembly, and the multiunit it is the circular welding of ring form to extend the lug and just extends the setting of lug cover oversheath.

As a further preferred option of the technical scheme, a metal layer is embedded in the outer sheath, and the outer sheath is integrally made of hard rubber.

As a further preferred feature of the present invention, the extension protrusion has a cylindrical structure as a whole, and is made of a hard material.

As a further preferred option of the technical scheme, the outer wall of the outer sheath is uniformly embedded with a preformed groove, and the cross section of the preformed groove is one of rectangular and circular.

As further preferred of this technical scheme, it includes anticorrosive coating, buffer layer, waterproof layer and flame retardant coating to strengthen the subassembly, the anticorrosive coating laminating cover is established in the viscose layer outside, the buffer layer is established in the anticorrosive coating outside through the viscose cover, the waterproof layer passes through the viscose cover and establishes in the buffer layer outside, the flame retardant coating passes through the viscose cover and establishes at the waterproof layer, the anticorrosive coating adopts the cold galvanizing material to make, the buffer layer adopts the silica gel material to make, the waterproof layer adopts polyurethane waterproof coating to make, the flame retardant coating adopts the glass fiber material to make.

The utility model provides a high-strength prestressed steel strand which has the following beneficial effects:

(1) according to the utility model, the outer protection component is arranged, the outer sheath is sleeved outside the steel strand body, the outer protection of the steel strand body is realized, the service life of the steel strand body is prolonged, the cable protection performance of the steel strand as a reinforcing core is better, the steel strand has better durability due to the zinc coating, the contact area with concrete is increased under the holding of the extension lug when the cable is embedded in the subsequent cable engineering construction, the stress of the steel strand body is improved, and the steel strand body and the concrete are condensed into a whole under the matching of the reserved groove, so that the prestress effect is good, the tensile resistance is high, and the strength is higher.

(2) According to the utility model, the reinforcing component is arranged, the steel strand can be protected externally under the reinforcement of the anti-corrosion layer, the cable taking the steel strand as the reinforcing core is prevented from being corroded by the outside, the anti-corrosion effect is good, the expansion force in the use of the cable is absorbed under the assistance of the buffer layer, the cable taking the steel strand as the reinforcing core is prevented from being damaged, the cable taking the steel strand as the reinforcing core can be subjected to waterproof treatment under the assistance of the waterproof layer, the soaking corrosion caused by the fact that an external water source enters the cable is prevented, the aging condition of the cable taking the steel strand as the reinforcing core is accelerated, the fireproof layer is arranged, the reinforcement and protection can be carried out, and the fireproof performance is improved.

Drawings

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

FIG. 2 is a schematic view of the connection between the outer sheath and the steel strand body according to the present invention;

FIG. 3 is a schematic structural view of an external shield assembly of the present invention;

FIG. 4 is a schematic view of a reinforcement assembly of the present invention;

fig. 5 is an enlarged view of the utility model at a in fig. 1.

In the figure: 1. a steel strand body; 2. an outer protective component; 3. a reinforcement assembly; 4. a steel wire; 5. a zinc coating layer; 6. an outer sheath; 7. an adhesive layer; 8. an extension bump; 9. reserving a groove; 10. an anticorrosive layer; 11. a buffer layer; 12. a waterproof layer; 13. and a fire-proof layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 5, the present invention provides the technical solutions: the utility model provides a high strength prestressing force steel strand wires, includes steel strand wires body 1, outside protection component 2 and reinforcement component 3, the fixed cover of outside protection component 2 is established at steel strand wires body 1 outsidely, reinforcement component 3 inlays and establishes in outside protection component 2, and reinforcement component 3 corresponds the setting with steel strand wires body 1.

In this embodiment, specifically: the steel strand wires body 1 is formed by the transposition of

multiunit copper wire

4, 4 outside parcels of copper wire have galvanizing coat 5, have realized the intensive processing to copper wire 4, have further promoted steel strand wires body 1's intensity, and the prestressing force is effectual.

In this embodiment, specifically: outside protection subassembly 2 includes oversheath 6, mucigel 7 and multiunit extension lug 8, mucigel 7 fixed mounting is at oversheath 6 inner wall, oversheath 6 corresponds the cover and establishes in steel strand wires body 1 outsidely, mucigel 7 corresponds the bonding fixedly with steel strand wires body 1 through the mucigel, it inlays to establish between mucigel 7, oversheath 6 to strengthen subassembly 3, the multiunit it is the circular ring form welding and is in oversheath 6 lateral wall to extend lug 8, and extends lug 8 and cover oversheath 6 setting, overlaps oversheath 6 cover and establishes outside steel strand wires body 1, has realized the external protection to steel strand wires body 1, has prolonged the life of steel strand wires body 1, and the cable protection nature of strengthening the core is better from this steel strand wires, and galvanizing coat 5 can make steel strand wires have better durability, and is pre-buried when follow-up carrying out the cable engineering construction in advance.

In this embodiment, specifically: the metal layer is embedded in the outer sheath 6, and the outer sheath 6 is integrally made of hard rubber.

In this embodiment, specifically: the extension lug 8 is integrally of a cylindrical structure, the extension lug 8 is made of hard materials, the contact area of the extension lug 8 with a cable engineering construction position is increased under the clamping of the extension lug, the resistance of the extension lug with the cable engineering construction position is enhanced, and the stress of the steel strand body 1 is improved.

In this embodiment, specifically: 6 outer walls of oversheath evenly inlay and be equipped with the reservation groove 9, and the cross section of reservation groove 9 is one of rectangle, circular, under extension lug 8 add hold, increased with concrete area of contact, promoted the stress of steel strand wires body, and under the cooperation of reservation groove 9 for the steel strand wires body is as an organic whole with the concrete coagulation, and the prestressing force is effectual, and the tensile is dragged and intensity is higher.

In this embodiment, specifically: the reinforced component 3 comprises an anticorrosive coating 10, a buffer layer 11, a waterproof layer 12 and a fireproof layer 13, wherein the anticorrosive coating 10 is fitted and sleeved outside the viscose layer 7, the buffer layer 11 is sleeved outside the anticorrosive coating 10 through viscose, the waterproof layer 12 is sleeved outside the buffer layer 11 through viscose, the fireproof layer 13 is sleeved on the waterproof layer 12 through viscose, the anticorrosive coating 10 is made of cold galvanizing material, the buffer layer 11 is made of silica gel material, the waterproof layer 12 is made of polyurethane waterproof paint, the fireproof layer 13 is made of glass fiber material, and can externally protect the steel strand under the reinforcement of the anticorrosive coating 10, so that the cable with the reinforced core made of the steel strand is prevented from being corroded from the outside, the corrosion resistance effect is good, the expansion force in the cable using process is absorbed under the assistance of the buffer layer 11, and the cable with the reinforced core made of the steel strand is prevented from being damaged, under the assistance through waterproof layer 12, can carry out water repellent to the cable of strengthening the core to this steel strand wires from this, avoid external water source to get into the cable and cause the corrosion of soaking, with higher speed the ageing situation of cable of strengthening the core is done to this steel strand wires, through being equipped with flame retardant coating 13, can consolidate the protection, promoted fire behavior.

The working principle is that when in use, the galvanized layer 5 is wrapped outside a single steel wire 4, the steel wire 4 is reinforced, the strength of the steel strand body 1 is further improved, the prestress effect is good, the outer protective sleeve 6 is sleeved outside the steel strand body 1 through the arrangement of the outer protective component 2, the outer protection of the steel strand body 1 is realized, the outer protective sleeve 6 is adhered to the steel strand body 1 through the adhesive layer 7, the connection stability of the outer protective sleeve 6 and the steel strand body 1 is ensured, the service life of the steel strand body 1 is prolonged through the outer protection of the outer protective sleeve 6 on the steel strand body 1, the cable protection performance of the steel strand as a reinforcing core is better, the galvanized layer 5 can enable the steel strand to have better durability, when in the subsequent cable engineering construction pre-burying, a plurality of groups of extending lugs 8 are uniformly distributed on the outer wall of the outer protective sleeve 6, when in the subsequent cable engineering pre-burying construction on the steel strand body 1, under the clamping of the extending lug 8, the contact area with concrete is increased, the stress of a steel strand body is improved, the steel strand body and the concrete are condensed into a whole under the matching of the preformed groove 9, the prestress effect is good, the tensile resistance and the strength are higher, the steel strand body can be externally protected by arranging the reinforcing component 3 and utilizing the reinforcement of the anti-corrosion layer 10, the cable taking the steel strand as the reinforcing core is prevented from being corroded by the outside, the anti-corrosion effect is good, the expansion force in the use of the cable is absorbed under the assistance of the buffer layer 11, the cable taking the steel strand as the reinforcing core is prevented from being damaged, the cable taking the steel strand as the reinforcing core can be subjected to waterproof treatment under the assistance of the waterproof layer 12, the soaking corrosion caused by the fact that the outside water source enters the cable is avoided, the aging condition of the cable taking the steel strand as the reinforcing core is accelerated, and the fireproof layer 13 is arranged, can reinforce the protection, promoted fire behavior.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high strength prestressing force steel strand which characterized in that, includes steel strand wires body (1), outside protection component (2) and reinforcement component (3), outside protection component (2) fixed cover is established at steel strand wires body (1) outside, reinforcement component (3) light color is in outside protection component (2), and reinforcement component (3) and steel strand wires body (1) correspond the setting.

2. The high-strength prestressed steel strand as recited in claim 1, wherein: the steel strand body (1) is formed by stranding a plurality of groups of steel wires (4), and the outside of each steel wire (4) is wrapped with a zinc coating (5).

3. The high-strength prestressed steel strand as recited in claim 1, wherein: outside protection subassembly (2) include oversheath (6), mucigel (7) and multiunit extension lug (8), mucigel (7) fixed mounting is in oversheath (6) inner wall, oversheath (6) correspond the cover and establish outside steel strand wires body (1), mucigel (7) correspond the bonding through mucigel and steel strand wires body (1) and are fixed, strengthen subassembly (3) and inlay and establish between mucigel (7), oversheath (6), multiunit extend lug (8) and be the circular welding at oversheath (6) lateral wall, and extend lug (8) and cover oversheath (6) setting.

4. The high-strength prestressed steel strand as recited in claim 3, wherein: the metal layer is embedded in the outer sheath (6), and the outer sheath (6) is integrally made of hard rubber.

5. The high-strength prestressed steel strand as recited in claim 3, wherein: the extending lug (8) is integrally of a cylindrical structure, and the extending lug (8) is made of hard materials.

6. The high-strength prestressed steel strand as recited in claim 3, wherein: the outer wall of the outer sheath (6) is uniformly embedded with a preformed groove (9), and the cross section of the preformed groove (9) is rectangular or circular.

7. The high-strength prestressed steel strand as recited in claim 1, wherein: strengthen subassembly (3) including anticorrosive coating (10), buffer layer (11), waterproof layer (12) and flame retardant coating (13), anticorrosive coating (10) laminating cover is established in viscose layer (7) outside, buffer layer (11) are established in anticorrosive coating (10) outside through the viscose cover, waterproof layer (12) are established in buffer layer (11) outside through the viscose cover, waterproof layer (13) are established at waterproof layer (12) through the viscose cover, anticorrosive coating (10) adopt the cold-galvanize material to make, buffer layer (11) adopt the silica gel material to make, waterproof layer (12) adopt polyurethane waterproof coating to make, flame retardant coating (13) adopt the glass fiber material to make.