Moistureproof prestressed steel strand

Abstract

The utility model relates to the technical field of metal wires, in particular to a moistureproof prestressed steel strand which comprises an inner steel wire, a plurality of outer steel wires and a moistureproof assembly, and the moistureproof assembly comprises an adsorption breathable layer, an activated carbon filling layer, a moistureproof layer, an inner adsorption layer, an outer wrapping structure and two end waterproof pieces. The two end waterproof pieces prevent water vapor from entering the interior through the two ends to rust the inner steel wire and the multiple outer steel wires, the outer wrapping structure is used for increasing the abrasion resistance in the using process, the inner adsorption layer adsorbs the water vapor entering the outer wrapping structure, and the damp-proof layer is matched with the activated carbon filling layer to keep the interior of the prestressed steel strand dry. And the adsorption ventilation layer is used for adsorbing water vapor generated by weather reasons inside, so that the problem that the water vapor is easily attached to the steel wire to cause corrosion of the steel wire when the steel wire is used in an environment with relatively high humidity because the steel wire is directly exposed to the outside and does not have a moisture-proof function is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal wires, in particular to a moisture-proof prestressed steel strand. Background Art

[0002] In the fields of buildings, highways, railways, bridges, etc., the application of prestressed components is becoming more and more extensive. Most prestressed components use prestressed steel wire or steel strand as reinforcement, which is an important factor in improving compressive and seismic resistance.

[0003] The prior art (CN201942937U) discloses a prestressed steel strand, comprising an intermediate filament, around which are arranged a plurality of outer steel wires with a diameter of 3.0-5.8 mm. The plurality of outer steel wires are wound around the outside of the intermediate filament and twisted together. The periphery of the prestressed steel strand is a spiral concave-convex shape. The bonding strength between the concrete and the prestressed steel strand is high, the concrete is not easy to fall off, the overall tensile strength will be greatly enhanced, and at the same time, its service life will be extended.

[0004] However, when using the above method, since the steel strands are directly exposed to the outside world and do not have a moisture-proof function, when used in an environment with high humidity, water vapor easily adheres to the steel wires and causes corrosion of the steel wires. Utility Model Content

[0005] The purpose of the utility model is to provide a moisture-proof prestressed steel strand, aiming to solve the problem of existing prestressed steel strands. Since the steel strands are directly exposed to the outside world and do not have a moisture-proof function, when used in an environment with high humidity, water vapor easily adheres to the steel wire and causes steel wire corrosion.

[0006] To achieve the above object, the utility model provides a moisture-proof prestressed steel strand, comprising an inner steel wire, a plurality of outer steel wires and a moisture-proof assembly, wherein the plurality of outer steel wires are respectively arranged on one side of the inner steel wire.

[0007] The moisture-proof assembly includes an adsorption breathable layer, an activated carbon filling layer, a moisture-proof layer, an inner adsorption layer, an outer wrapping structure and two end waterproof parts;

[0008] The adsorption breathable layer is fixedly connected to the multiple outer steel wires respectively and is located on one side of the multiple outer steel wires; the activated carbon filling layer is fixedly connected to the adsorption breathable layer and is fixedly connected to the multiple outer steel wires respectively and is located inside the adsorption breathable layer; the moisture-proof layer is fixedly connected to the adsorption breathable layer and is located on one side of the adsorption breathable layer; the inner adsorption layer is fixedly connected to the moisture-proof layer and is located on one side of the moisture-proof layer; the outer wrapping structure is arranged on one side of the inner adsorption layer; the two end waterproof parts are respectively located on both sides of the outer wrapping structure.

[0009] Among them, the outer wrapping structure includes a buffer filling layer, a water absorption layer, a wear-resistant woven wrapping layer and an outer buffer component, the buffer filling layer is fixedly connected to the inner adsorption layer and is located on one side of the inner adsorption layer; the water absorption layer is fixedly connected to the buffer filling layer and is located on one side of the buffer filling layer; the wear-resistant woven wrapping layer is fixedly connected to the water absorption layer and is located on one side of the water absorption layer; the outer buffer component is arranged on one side of the wear-resistant woven wrapping layer.

[0010] Among them, the outer buffer includes an elastic layer and an elastic support rib layer, the elastic layer is fixedly connected to the wear-resistant woven wrapping layer and is located on one side of the wear-resistant woven wrapping layer; the elastic support rib layer is fixedly connected to the elastic layer and is located on one side of the elastic layer.

[0011] Wherein, the end waterproof part includes a waterproof cover and a waterproof pad, the waterproof cover is located on one side of the elastic support rib layer; the waterproof pad is fixedly connected to the waterproof cover and is located inside the waterproof cover.

[0012] Wherein, the moisture-proof prestressed steel strand further includes two splicing pieces, and the two splicing pieces are respectively arranged on both sides of the elastic supporting rib layer.

[0013] In which, the splicing parts include multiple embedded blocks, splicing rings and splicing seats, and the multiple embedded blocks are respectively arranged on one side of the multiple outer steel wires; the splicing rings are respectively fixed to the multiple embedded blocks, and are fixedly connected to the elastic support rib layer, and are located on one side of the multiple embedded blocks; the splicing seat is fixedly connected to the splicing ring and is located on one side of the splicing ring; the splicing seat has multiple assembly holes, and the multiple assembly holes are respectively located on one side of the splicing seat.

[0014] The utility model provides a moisture-proof prestressed steel strand, wherein a plurality of outer steel wires and an inner steel wire form a prestressed steel strand. When a relatively humid environment is encountered during use, the two end waterproof parts are used to block the two ends of the prestressed steel strand to prevent water vapor from penetrating into the interior through the two ends and corroding the inner steel wire and the plurality of outer steel wires. The outer wrapping structure is used to increase the wear resistance during use to prevent direct wear of the plurality of outer steel wires. The inner adsorption layer adsorbs water vapor penetrating through the outer wrapping structure. The moisture-proof layer cooperates with the activated carbon filling layer to keep the interior of the prestressed steel strand dry. The adsorption breathable layer is used to adsorb water vapor generated inside due to weather reasons to keep the prestressed steel strand dry at all times and achieve a moisture-proof effect, thereby solving the problem of existing prestressed steel strands. Since the steel strand is directly exposed to the outside world and does not have a moisture-proof function, when used in an environment with high humidity, water vapor easily adheres to the steel wire and causes steel wire corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0016] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present utility model.

[0017] Figure 2 It is a sectional view of the entire first embodiment of the present utility model.

[0018] Figure 3 It is a cross-sectional view of the end waterproof member of the first embodiment of the present utility model.

[0019] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the present utility model.

[0020] Figure 5 It is a cross-sectional view of a splicing piece according to the second embodiment of the present invention.

[0021] 101-inner steel wire, 102-outer steel wire, 103-adsorption breathable layer, 104-activated carbon filling layer, 105-moisture-proof layer, 106-inner adsorption layer, 107-outer wrapping structure, 108-end waterproof parts, 109-buffer filling layer, 110-water-absorbing layer, 111-wear-resistant woven wrapping layer, 112-outer buffer, 113-elastic layer, 114-elastic supporting rib layer, 115-waterproof cover, 116-waterproof pad, 201-splicing part, 202-embedded block, 203-splicing ring, 204-splicing seat, 205-assembly hole. DETAILED DESCRIPTION

[0022] The first embodiment of this application is:

[0023] See also Figure 1-Figure 3 ,in, Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 This is a cross-sectional view of the entire first embodiment of the present invention. Figure 3 It is a cross-sectional view of the end waterproof member of the first embodiment of the present utility model.

[0024] The present invention provides a moisture-proof prestressed steel strand: comprising an inner steel wire 101, a plurality of outer steel wires 102 and a moisture-proof component, wherein the moisture-proof component comprises an adsorption breathable layer 103, an activated carbon filling layer 104, a moisture-proof layer 105, an inner adsorption layer 106, an outer wrapping structure 107 and two end waterproof parts 108, the outer wrapping structure 107 comprises a buffer filling layer 109, a water-absorbing layer 110, a wear-resistant woven wrapping layer 111 and an outer buffer part 112, the outer buffer part 112 comprises an elastic layer 113 and an elastic supporting rib layer 114, and the end waterproof part 108 comprises a waterproof cover 115 and a waterproof pad 116. The above-mentioned solution solves the problem of the existing prestressed steel strand, that is, since the steel strand is directly exposed to the outside and does not have a moisture-proof function, when used in an environment with high humidity, water vapor easily adheres to the steel wire and causes steel wire corrosion.

[0025] According to this specific embodiment, the plurality of outer steel wires 102 are respectively arranged on one side of the inner steel wire 101 , and the plurality of outer steel wires 102 and the inner steel wire 101 form a prestressed steel strand.

[0026] Among them, the adsorption breathable layer 103 is fixedly connected to the multiple outer steel wires 102 respectively, and is located on one side of the multiple outer steel wires 102; the activated carbon filling layer 104 is fixedly connected to the adsorption breathable layer 103, and is fixedly connected to the multiple outer steel wires 102 respectively, and is located inside the adsorption breathable layer 103; the moisture-proof layer 105 is fixedly connected to the adsorption breathable layer 103 and is located on one side of the adsorption breathable layer 103; the inner adsorption layer 106 is fixedly connected to the moisture-proof layer 105 and is located on one side of the moisture-proof layer 105; the outer wrapping structure 107 is arranged on one side of the inner adsorption layer 106; the two end waterproof parts 108 are respectively located on both sides of the outer wrapping structure 107, and the multiple outer steel wires 102 and the inner steel wire 101 form a prestressed steel strand. When encountering a relatively humid environment during use, the two end waterproof parts 108 are provided. The end waterproof parts 108 block both ends of the prestressed steel strand to prevent water vapor from penetrating into the interior through both ends and corroding the inner steel wire 101 and the multiple outer steel wires 102. The outer wrapping structure 107 is used to increase the wear resistance during use to prevent direct wear of the multiple outer steel wires 102. The inner adsorption layer 106 adsorbs the water vapor that penetrates through the outer wrapping structure 107. The moisture-proof layer 105 cooperates with the activated carbon filling layer 104 to keep the inside of the prestressed steel strand dry. The adsorption breathable layer 103 is used to adsorb the water vapor generated inside due to weather reasons to keep the prestressed steel strand dry at all times and achieve a moisture-proof effect, thereby solving the problem of existing prestressed steel strands. Since the steel strands are directly exposed to the outside world and do not have a moisture-proof function, when used in an environment with high humidity, water vapor easily adheres to the steel wires, causing steel wire corrosion.

[0027] Secondly, the buffer filling layer 109 is fixedly connected to the inner adsorption layer 106 and is located on one side of the inner adsorption layer 106; the water absorption layer 110 is fixedly connected to the buffer filling layer 109 and is located on one side of the buffer filling layer 109; the wear-resistant braided wrapping layer 111 is fixedly connected to the water absorption layer 110 and is located on one side of the water absorption layer 110; the outer buffer 112 is arranged on one side of the wear-resistant braided wrapping layer 111, and the buffer filling layer 109 is used to buffer the impact force generated by the outside during the use of the overall structure, thereby protecting the inner steel wire 101 and the multiple outer steel wires 102 inside, the water absorption layer 110 is used to absorb water vapor that passes through the wear-resistant braided wrapping layer 111, the wear-resistant braided wrapping layer 111 is used to increase the external strength and wear strength, and the outer buffer 112 is used to absorb the impact force generated by the outside to further enhance the toughness of the overall prestressed steel strand.

[0028] At the same time, the elastic layer 113 is fixedly connected to the wear-resistant braided wrapping layer 111 and is located on one side of the wear-resistant braided wrapping layer 111; the elastic support rib layer 114 is fixedly connected to the elastic layer 113 and is located on one side of the elastic layer 113. The elastic layer 113 cooperates with the elastic support rib layer 114 to absorb the impact force generated by the outside world, thereby further enhancing the toughness of the overall prestressed steel strand.

[0029] In addition, the waterproof cover 115 is located on one side of the elastic supporting rib layer 114; the waterproof pad 116 is fixedly connected to the waterproof cover 115 and is located inside the waterproof cover 115. The waterproof cover 115 cooperates with the waterproof pad 116 to buckle the two ends of the prestressed steel strand, sealing and waterproofing the two ends to prevent water vapor from penetrating into the interior of the prestressed steel strand through the two ends and corroding the inner steel wire 101 and the multiple outer steel wires 102.

[0030] When using a moisture-proof prestressed steel strand described in this embodiment, multiple outer steel wires 102 and the inner steel wire 101 form a prestressed steel strand. When a relatively humid environment is encountered during use, the waterproof cover 115 cooperates with the waterproof pad 116 to buckle the two ends of the prestressed steel strand, and the two ends are sealed and waterproofed to prevent water vapor from penetrating into the interior of the prestressed steel strand through the two ends to corrode the inner steel wire 101 and the multiple outer steel wires 102. The buffer filling layer 109 is used to buffer the impact force generated by the outside during the use of the overall structure, thereby protecting the inner steel wire 101 and the multiple outer steel wires 102 inside. The water absorption layer 110 is used to absorb water vapor that passes through the wear-resistant braided wrapping layer 111. The wear-resistant braided wrapping layer 111 is used to In order to increase the external strength and increase the wear resistance, the elastic layer 113 cooperates with the elastic supporting rib layer 114 to absorb the impact generated by the outside world, further strengthening the toughness of the overall prestressed steel strand, and the inner adsorption layer 106 absorbs the water vapor that penetrates through the outer wrapping structure 107. The moisture-proof layer 105 cooperates with the activated carbon filling layer 104 to keep the inside of the prestressed steel strand dry. The adsorption breathable layer 103 is used to adsorb the water vapor generated inside due to weather reasons to keep the prestressed steel strand dry at all times and achieve a moisture-proof effect, thereby solving the existing prestressed steel strand. Since the steel strand is directly exposed to the outside world and does not have a moisture-proof function, when used in an environment with high humidity, water vapor is easy to adhere to the steel wire and cause steel wire corrosion.

[0031] The second embodiment of this application is:

[0032] See also Figure 4-Figure 5 ,in, Figure 4 This is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 5 It is a cross-sectional view of a splicing piece according to the second embodiment of the present invention.

[0033] Based on the first embodiment, the present invention provides a moisture-proof prestressed steel strand, which further includes two splicing pieces 201, each of which includes a plurality of embedded blocks 202, a splicing ring 203 and a splicing seat 204, and the splicing seat 204 has a plurality of assembly holes 205.

[0034] The two splicing pieces 201 are respectively arranged on both sides of the elastic supporting rib layer 114 , and the two splicing pieces 201 are used to splice two identical prestressed steel strands, thereby extending the usable length of the prestressed steel strands.

[0035] Secondly, multiple embedded blocks 202 are respectively arranged on one side of multiple outer steel wires 102; the splicing rings 203 are respectively fixed to multiple embedded blocks 202, and are fixedly connected to the elastic supporting rib layer 114, and are located on one side of multiple embedded blocks 202; the splicing seat 204 is fixedly connected to the splicing ring 203, and is located on one side of the splicing ring 203; multiple assembly holes 205 are respectively located on one side of the splicing seat 204, and the splicing ring 203 is arranged on the elastic supporting rib layer 114 through multiple embedded blocks 202, and multiple embedded blocks 202 are embedded in multiple outer steel wires 102, thereby increasing the assembly strength of the splicing ring 203, aligning the splicing seats 204 and the corresponding multiple assembly holes 205 at both ends of the same prestressed steel strand, and then fixing them with assembly screws and bolts, thereby extending the use length of the prestressed steel strand.

[0036] When using the moisture-proof prestressed steel strand described in this embodiment, the splicing ring 203 is arranged on the elastic support rib layer 114 through multiple embedded blocks 202, and multiple embedded blocks 202 are embedded in multiple outer steel wires 102, thereby increasing the assembly strength of the splicing ring 203, aligning the splicing seats 204 and the corresponding multiple assembly holes 205 at both ends of the same prestressed steel strand, and then fixing them with assembly screws and bolts, thereby extending the use length of the prestressed steel strand.

[0037] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A moisture-proof prestressed steel strand, comprising an inner steel wire and a plurality of outer steel wires, wherein the plurality of outer steel wires are respectively arranged on one side of the inner steel wire; characterized in that: Also included are moisture-proof components; The moisture-proof assembly includes an adsorption breathable layer, an activated carbon filling layer, a moisture-proof layer, an inner adsorption layer, an outer wrapping structure and two end waterproof parts; The adsorption breathable layer is fixedly connected to the multiple outer steel wires respectively and is located on one side of the multiple outer steel wires; the activated carbon filling layer is fixedly connected to the adsorption breathable layer and is fixedly connected to the multiple outer steel wires respectively and is located inside the adsorption breathable layer; the moisture-proof layer is fixedly connected to the adsorption breathable layer and is located on one side of the adsorption breathable layer; the inner adsorption layer is fixedly connected to the moisture-proof layer and is located on one side of the moisture-proof layer; the outer wrapping structure is arranged on one side of the inner adsorption layer; the two end waterproof parts are respectively located on both sides of the outer wrapping structure.

2. A moisture-proof prestressed steel strand according to claim 1, characterized in that: The outer wrapping structure includes a buffer filling layer, a water absorption layer, a wear-resistant woven wrapping layer and an outer buffer component. The buffer filling layer is fixedly connected to the inner adsorption layer and is located on one side of the inner adsorption layer; the water absorption layer is fixedly connected to the buffer filling layer and is located on one side of the buffer filling layer; the wear-resistant woven wrapping layer is fixedly connected to the water absorption layer and is located on one side of the water absorption layer; the outer buffer component is arranged on one side of the wear-resistant woven wrapping layer.

3. A moisture-proof prestressed steel strand according to claim 2, characterized in that: The outer buffer comprises an elastic layer and an elastic supporting rib layer, the elastic layer is fixedly connected to the wear-resistant braided wrapping layer and is located on one side of the wear-resistant braided wrapping layer; the elastic supporting rib layer is fixedly connected to the elastic layer and is located on one side of the elastic layer.

4. A moisture-proof prestressed steel strand according to claim 3, characterized in that: The end waterproof part includes a waterproof cover and a waterproof pad. The waterproof cover is located on one side of the elastic supporting rib layer; the waterproof pad is fixedly connected to the waterproof cover and is located inside the waterproof cover.

5. The moisture-proof prestressed steel strand according to claim 4, characterized in that: The moisture-proof prestressed steel strand further comprises two splicing pieces, which are respectively arranged on both sides of the elastic support rib layer.

6. The moisture-proof prestressed steel strand according to claim 5, characterized in that: The splicing piece includes a plurality of embedded blocks, a splicing ring and a splicing seat, and the plurality of embedded blocks are respectively arranged on one side of the plurality of outer steel wires; the splicing ring is respectively fixed to the plurality of embedded blocks, and is fixedly connected to the elastic support rib layer, and is located on one side of the plurality of embedded blocks; the splicing seat is fixedly connected to the splicing ring and is located on one side of the splicing ring; the splicing seat has a plurality of assembly holes, and the plurality of assembly holes are respectively located on one side of the splicing seat.

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