阅读说明：本技术 一种复合锚固拉索及其制作方法 (Composite anchoring inhaul cable and manufacturing method thereof ) 是由 苏韩 朱元 韦耀淋 雷欢 温朝臣 杨雄文 庞锐剑 蒲永官 莫鲤木 梁剑冰 植磊 于 2021-07-15 设计创作，主要内容包括：本发明公开一种复合锚固拉索及其制作方法,涉及桥梁构成技术领域,复合锚固拉索包括成品索体及两根以上的钢绞线,还包括挤压锁固装置、锚杯和限位板,所述锚杯套设在所述挤压锁固装置上,所述限位板设置在所述锚杯的前端,其中：所述挤压锁固装置设置的第一穿线孔和所述限位板设置的第二穿线孔的数量和排布与所述钢绞线的排布和数量相同；所述锚杯、挤压锁固装置和限位板围成的空腔灌注有冷铸握裹材料层。本发明提供的装置可以有效的解决拉索在制作起吊的过程中索体内预应力筋受弯曲力产生的预应力筋不等长的问题,保证索体每根预应力筋受力均匀,提高拉索的受力均匀性进而提升拉索的使用寿命。(The invention discloses a composite anchoring inhaul cable and a manufacturing method thereof, and relates to the technical field of bridge composition, the composite anchoring inhaul cable comprises a finished cable body, more than two steel strands, an extrusion locking device, an anchor cup and a limiting plate, wherein the anchor cup is sleeved on the extrusion locking device, and the limiting plate is arranged at the front end of the anchor cup, wherein: the number and arrangement of the first threading holes arranged on the extrusion locking device and the second threading holes arranged on the limiting plate are the same as those of the steel strands; and a cavity surrounded by the anchor cup, the extrusion locking device and the limiting plate is filled with a cold-cast bond coating material layer. The device provided by the invention can effectively solve the problem that the prestressed tendons in the cable body are unequal in length due to the bending force of the prestressed tendons in the cable body in the process of manufacturing and hoisting the inhaul cable, ensure that each prestressed tendon in the cable body is uniformly stressed, improve the stress uniformity of the inhaul cable and further prolong the service life of the inhaul cable.)

1. The utility model provides a compound anchor cable, includes finished product cable body (6), finished product cable body (6) include steel strand wires (61) more than two, its characterized in that still includes extrusion locking device (2), anchor cup (3) and limiting plate (5), wherein:

first threading holes (23) with the aperture matched with the steel strands (61) are formed in the extrusion locking device (2), the arrangement and the number of the first threading holes (23) on the extrusion locking device (2) are the same as those of the steel strands (61) on the finished cable body (6), deformation grooves (24) are formed between every two adjacent first threading holes (23), two side faces of each deformation groove (24) are attached, all the deformation grooves (24) are parallel to each other or are in the same straight line, and the first threading holes (23) and the deformation grooves (24) penetrate through the extrusion locking device (2) from front to back;

the anchor cup (3) is sleeved on the extrusion locking device (2);

the limiting plate (5) is arranged at the front end of the anchor cup (3), the limiting plate (5) is provided with second threading holes (51) which penetrate through two end faces of the limiting plate and are adaptive to the steel strands (61) in bore diameter, and the arrangement and the number of the second threading holes (51) on the limiting plate (5) are the same as those of the steel strands (61) on the finished cable body (6);

a cavity surrounded by the anchor cup (3), the extrusion locking device (2) and the limiting plate (5) is filled with a cold-cast bond coating material layer (4);

the steel strand (61) is arranged in the second threading hole (51) and the first threading hole (23).

2. The composite anchor cable as claimed in claim 1, further comprising an extrusion-wrapping material layer (25), the extrusion-wrapping material layer (25) being disposed in a space formed by the first threading hole (23) and a gap of an outer ring of the steel strand (61).

3. The composite anchoring cable according to claim 1, characterized in that the extrusion locking device (2) comprises a first wedge-shaped taper section (22) and an extrusion deformation section (21) from front to back in sequence, the front end of the first wedge-shaped taper section (22) is a reduced end, and the inner wall of the anchor cup (3) is provided with a second wedge-shaped taper section (32) matched with the first wedge-shaped taper section (22).

4. A composite anchoring cable according to claim 3, characterised in that the anchor cup (3) is provided with an annular groove (33) in the inner wall of the cavity.

5. A composite anchoring cable according to claim 1, characterised in that the first threading hole (23) is provided with a first rounded corner (26) at the front orifice.

6. A composite anchoring cable according to claim 1, characterised in that the second threading hole (51) bilateral orifices are each provided with a second rounded corner (52).

7. The composite anchoring inhaul cable according to claim 1, further comprising a sealing cylinder (8), a sealing ring (9) and a transparent cover (10), wherein one end of the sealing cylinder (8) is connected with the front part of the anchor cup (3), the other end of the sealing cylinder is connected with the transparent cover (10), the finished cable body (6) penetrates through the transparent cover (10), and the sealing ring (9) is arranged between the sealing cylinder (8) and the finished cable body (6).

8. A composite anchoring cable according to claim 7, characterised in that the sealing cylinder (8) is impregnated with a layer of sealing material (7).

9. A method of making a composite anchor cable as claimed in claim 1, including the steps of:

step 1: stripping off a sheath layer of an outer ring of the finished cable body (6) according to the anchoring length requirement, stripping off a sheath layer of an inner ring of the steel strand (61), and cleaning each steel strand (61);

step 2: sequentially enabling the steel strand (61) to pass through the second threading hole (51) of the limiting plate (5), the anchor cup (3) and the first threading hole (23) of the extrusion locking device (2), and exposing the rear end of the extrusion locking device (2) for a certain length;

and step 3: inserting the rear end of the extrusion locking device (2) from one side of the through hole of the extrusion tool, starting the extrusion tool, pushing the extrusion locking device (2) to the other side of the through hole of the extrusion tool, and finishing the extrusion of the extrusion locking device (2);

and 4, step 4: and (3) installing a limiting plate (5) at the front end of the anchor cup (3), and sleeving the anchor cup (3) on the extrusion locking device (2).

Technical Field

The invention relates to the technical field of bridge construction, in particular to a composite anchoring inhaul cable and a manufacturing method thereof.

Background

The manufacturing process of the cold-cast finished product guy cable comprises the following steps: the prestressed tendons of the cable body are installed into the wire dividing plate (ring), the prestressed tendons can slide and move in the wire dividing plate (ring), then the wire dividing plate (ring) is pushed into the anchor cup, and the two half-type restraining rings are installed at the outlet of the anchor cup. The length of the stay cable is long, two ends of the stay cable can be lifted simultaneously and an anchor head is manufactured, prestressed tendons in the cable body are arranged in a layered hexagonal mode, the cable body is bent after the stay cable is lifted and affected by twisting of the cable body, the end face of the cable body which is originally parallel and level can be changed into an inclined plane when the end face of the prestressed tendons is bent, the end face of the prestressed tendons is uneven, gaps exist between the prestressed tendons and a wire dividing plate (ring) when the anchor head is manufactured, the prestressed tendons can freely slide in holes corresponding to the wire dividing plate (ring), the prestressed tendons on the end face of the cable body are unequal when the anchor head is manufactured due to the influence of bending force when the cable body is lifted, even the prestressed tendons are bent in an anchor cup section to cause unequal lengths of the prestressed tendons at the free end of the cable body, further, the uneven stress of each prestressed tendon in the cable body is influenced, and the influence of the phenomenon on the short cable is the largest.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a composite anchoring inhaul cable, which effectively solves the problem that prestressed tendons in a cable body are unequal in length due to the fact that the prestressed tendons are subjected to bending force in the process of manufacturing and hoisting the inhaul cable, ensures that each prestressed tendon in the cable body is uniformly stressed, and improves the stress uniformity of the inhaul cable so as to prolong the service life of the inhaul cable.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a compound anchor cable, includes the finished product cable body, the finished product cable body includes the steel strand wires more than two, still includes extrusion locking device, anchor cup and limiting plate, wherein:

first threading holes with the aperture matched with the steel strands are arranged in the extrusion locking device, the arrangement and the number of the first threading holes on the extrusion locking device are the same as those of the steel strands on the finished cable body, deformation grooves are arranged between the adjacent first threading holes, two side faces of each deformation groove are attached, all the deformation grooves are parallel to each other or on the same straight line, and the first threading holes and the deformation grooves penetrate through the extrusion locking device from front to back;

the anchor cup is sleeved on the extrusion locking device;

the limiting plate is arranged at the front end of the anchor cup, the limiting plate is provided with second threading holes which penetrate through two end faces of the limiting plate and are adaptive to the steel strands in diameter, and the arrangement and the number of the second threading holes in the limiting plate are the same as those of the steel strands in the finished cable body;

a cavity surrounded by the anchor cup, the extrusion locking device and the limiting plate is filled with a cold-cast bond coating material layer;

the steel strand is arranged in the second threading hole and the first threading hole.

Furthermore, the wire rope further comprises an extrusion bonding material layer, wherein the extrusion bonding material layer is arranged in a space formed by the first threading hole and a gap between the first threading hole and the outer ring of the steel strand.

Furthermore, the extrusion locking device sequentially comprises a first wedge-shaped taper section and an extrusion deformation section from front to back, the front end of the first wedge-shaped taper section is a reduction end, and a second wedge-shaped taper section matched with the first wedge-shaped taper section is arranged on the inner wall of the anchor cup.

Further, the anchor cup is provided with an annular groove on the inner wall of the cavity.

Furthermore, a first fillet is arranged on the front hole of the first threading hole.

Further, the two side orifices of the second threading hole are provided with second fillets.

Further, the cable body fixing device further comprises a sealing cylinder, a sealing ring and a transparent cover, one end of the sealing cylinder is connected with the front portion of the anchor cup, the other end of the sealing cylinder is connected with the transparent cover, the finished cable body penetrates through the transparent cover, and the sealing ring is arranged between the sealing cylinder and the finished cable body.

Further, a sealing material layer is poured into the sealing cylinder.

The invention also provides a manufacturing method of the composite anchoring inhaul cable, which comprises the following steps:

step 1: stripping the sheath layer of the outer ring of the finished cable body according to the anchoring length requirement, stripping the sheath layer of the inner ring of the steel strand, and cleaning each steel strand;

step 2: sequentially penetrating the steel strand through the second threading hole of the limiting plate, the anchor cup and the first threading hole of the extrusion locking device, and exposing the rear end of the extrusion locking device for a certain length;

and step 3: inserting the rear end of the extrusion locking device 2 from one side of the through hole of the extrusion tool, starting the extrusion tool, pushing the extrusion locking device 2 to the other side of the through hole of the extrusion tool, and finishing the extrusion of the extrusion locking device 2;

and 4, step 4: and installing a limiting plate at the front end of the anchor cup, and sleeving the anchor cup on the extrusion locking device.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the composite anchoring stay cable provided by the invention, as the arrangement and the number of the first threading holes on the extrusion locking device and the arrangement and the number of the second threading holes on the limiting plate are the same as those of the steel strands on the finished cable body, under the condition that the extrusion locking device tightly wraps the steel strands, the extrusion locking device is matched with the limiting plate for use, so that the steel strands in an anchoring section (from the limiting plate to the extrusion locking device area in the anchor cup) are parallel and equal in length, each steel strand in the finished cable body is uniformly stressed, and the service life of the stay cable is further prolonged; meanwhile, the steel strand is ensured not to have a break angle in the anchoring section (the area from the limiting plate in the anchor cup to the extrusion locking device), and the fatigue life of the inhaul cable is further prolonged.

Drawings

FIG. 1 is a schematic structural diagram of an anchoring section according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a finished product cable body of a prestressed tendon in the embodiment of the invention.

Fig. 3 is a schematic diagram of an arrangement structure of prestressed tendons in a finished product cable body of the prestressed tendons according to an embodiment of the invention.

Fig. 4 is a schematic diagram of a limiting plate structure according to an embodiment of the invention.

Fig. 5 is a cross-sectional view taken along the direction of fig. 4M.

FIG. 6 is a schematic structural view of a pressing and locking device before pressing according to an embodiment of the present invention.

Fig. 7 is a left side view of fig. 6.

Fig. 8 is a schematic structural view of an extruded locking device after extrusion according to an embodiment of the present invention.

Fig. 9 is a left side view of fig. 12.

FIG. 10 is a diagram illustrating an embodiment of the present invention.

Fig. 11 is a schematic cross-sectional view of fig. 8.

FIG. 12 is a schematic view of a stirrup structure according to an embodiment of the present invention.

FIG. 13 is a schematic view of the structure of the stirrup-bundling extrusion strip according to the embodiment of the invention.

FIG. 14 is a schematic structural view of an anchor cup according to an embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a sealing segment according to an embodiment of the present invention.

Fig. 16 is a schematic view of the overall structure of the embodiment of the present invention.

In the figure, 1-end cover, 2-extrusion locking device, 21-extrusion deformation section, 22-first wedge-shaped taper section, 23-first thread hole, 24-deformation groove, 25-extrusion holding wrapping material layer, 26-first fillet, 27-extrusion strip, 28-stirrup, 281-dovetail groove, 29-counter bore, 3-anchor cup, 31-external thread, 32-second wedge-shaped taper section, 33-annular groove, 34-positioning hole, 4-cold casting holding wrapping material layer, 5-limiting plate, 51-second thread hole, 52-second fillet, 6-finished cable body, 61-steel strand, 7-sealing material layer, 8-sealing cylinder, 9-sealing ring, 10-penetrating cover, 11-heat shrinkage sleeve, 100-anchoring section, 200-sealing section.

Detailed Description

In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.

Example one

As shown in fig. 1 to 7, a composite anchoring cable includes a finished cable body 6, the finished cable body 6 includes twelve steel strands 61, and further includes an extrusion locking device 2, an anchor cup 3 and a limiting plate 5, wherein:

the extrusion locking device 2 is internally provided with first threading holes 23 with the aperture matched with the steel strand 61, the diameter of each first threading hole 23 is slightly larger than the enveloping diameter of the outer ring of the steel strand 61, the number of the first threading holes is consistent with the number of the steel strands 61, the arrangement of the first threading holes 23 on the extrusion locking device 2 is consistent with the arrangement of the steel strands 61 on the finished cable body 6, a deformation groove 24 is arranged between every two adjacent first threading holes 23, the deformation groove 24 is communicated with the adjacent first threading holes 23, the first threading holes 23 and the deformation grooves 24 penetrate through the extrusion locking device 2 from front to back, and when the extrusion locking device 2 is subjected to cold extrusion molding, two side faces of the deformation groove 24 are attached, so that the extrusion locking device 2 and the steel strand 61 are tightly wrapped into a whole, and all the deformation grooves are parallel to each other or are on the same straight line;

the anchor cup 3 is sleeved on the extrusion locking device 2, the inner wall of the anchor cup 3 is provided with a limit position for preventing the extrusion locking device 2 from separating from the anchor cup 3 under the traction action of the steel strand 61, the extrusion locking device 2 is arranged at the rear part of the anchor cup 3, and the outer surface of the anchor cup 3 is provided with an external thread 31 for connecting a force transmission piece of a bridge structure through a knob, such as a nut, a pin joint fork lug and the like.

The front end of the anchor cup 3 is provided with a positioning hole 34, the limiting plate 5 is made of a wear-resistant nylon plate, the steel strand matrix is protected from being worn in the process of penetrating a prestressed tendon during cable making, the limiting plate 5 is arranged at the positioning hole 34, the limiting plate 5 is provided with second threading holes 51 which penetrate through two end faces of the limiting plate and are adaptive to the steel strands 61 in diameter, the diameter of each second threading hole 51 is slightly larger than the enveloping diameter of the outer ring of the steel strand 61, the number of the second threading holes is consistent with the number of the steel strands 61, and the arrangement of the second threading holes 51 on the limiting plate 5 is consistent with the arrangement of the steel strands 61 on the finished cable body 6;

the rear end of the anchor cup 3 is provided with an end cover 1 for sealing;

a cavity surrounded by the anchor cup 3, the extrusion locking device 2 and the limiting plate 5 is filled with a cold-cast bond coating material layer 4, and the cold-cast bond coating material layer 4 is made of epoxy mortar.

The steel strand 61 is installed in the second threading hole 51 and the first threading hole 23.

The working principle of the device is as follows:

twelve steel strands 61 penetrate through the second threading hole 51, the anchor cup 3 and the first threading hole 23, and then the extrusion locking device 2 is extruded through an extrusion tool, wherein the extrusion tool is a circular through hole die. And inserting the rear end of the extrusion locking device 2 from one side of the through hole of the extrusion tool and pushing the rear end of the extrusion locking device to the other side of the through hole of the extrusion tool to complete the extrusion of the extrusion locking device 2. After extrusion, the outer diameter of the extrusion locking device 2 is reduced, the deformation groove 24 is extruded and deformed, two side surfaces are attached, and the extrusion locking device 2 is extruded and formed to tightly wrap the steel strand 61, as shown in fig. 8 to 9. And finally, installing a limiting plate 5 at the front end of the anchor cup 3, and sleeving the anchor cup 3 on the extrusion locking device 2 to realize the first-stage anchoring of the inhaul cable.

Meanwhile, the cold-cast binding material layer 4 also binds and binds the steel strand 61 to form a second-level anchoring. The epoxy mortar slurry can be filled into the gap between the extrusion locking device 2 and the steel strand 61, so that fretting wear between the extrusion locking device 2 and the steel strand 61 is eliminated, and the fatigue service life of the cable body is prolonged; because extrusion locking device 2 uses with the cooperation of limiting plate 5, the steel strand wires 61 in the anchor section 100 are parallel to each other and isometric, and the space size between every steel strand wires 61 is unanimous, can effectively guarantee that every steel strand wires 61 all has sufficient chill-cast bond coating material layer 4 material to bond in, and different steel strand wires 61 receive chill-cast bond coating material layer 4's bond stress even, further promote the life of cable.

In summary, since the arrangement and number of the first threading holes 23 on the extrusion locking device 2 and the arrangement and number of the second threading holes 51 on the limiting plate 5 are the same as the arrangement and number of the steel strands 61 on the finished cable body 6, when the extrusion locking device 2 tightly wraps the steel strands 61, the extrusion locking device 2 and the limiting plate 5 are used in cooperation, so that the steel strands 61 in the anchoring section 100 (the area from the limiting plate 5 to the extrusion locking device 2) can be ensured to be parallel and equal in length, each steel strand 61 in the finished cable body 6 is uniformly stressed, and the service life of the cable is further prolonged; meanwhile, the steel strand 61 is ensured not to have a break angle in the anchoring section 100, so that the fatigue life of the inhaul cable is prolonged;

preferably, the wire rope further comprises an extrusion bonding material layer 25, and the extrusion bonding material layer 25 is arranged in a space formed by the gap between the first threading hole 23 and the outer ring of the steel strand 61. Specifically, the preparation method is as follows: 1): arranging the extrusion strip 27 at the gap between the adjacent steel wires on the outer ring of the steel strand 61, and before the extrusion tool extrudes the extrusion locking device 2, when the steel strand 61 passes through the first threading hole 23 of the extrusion locking device 2, enabling the end part of the steel strand 61 to be exposed out of the length of the first threading hole 23, wherein the length of the extrusion strip 27 corresponds to the length of the extrusion strip 27, and arranging the extrusion strip 27 at the gap between the adjacent steel wires on the outer ring of the exposed steel strand 61; in this embodiment, each steel strand 61 has seven steel wires, one of the steel wires is centered, six steel wires are arranged on the outer ring, six gaps are formed on the outer ring of the steel strand 61 by the six steel wires, six extrusion strips 27 are installed at the adjacent six steel wire gaps on the outer ring of the steel strand 61, one end of each extrusion strip 27 is flush with the end of the steel strand 61, and the other end faces the first threading hole 23; 2): fixing the extrusion strip 27 and the steel strand 61, sleeving the stirrups 28 outside the extrusion strip 27 and the steel strand 61 at the end part of the steel strand 61, and fixing the extrusion strip 27 and the steel strand 61 together to realize the bundling of the extrusion strip 27 at the adjacent steel wire gap on the outer ring of the steel strand 61; 3): feeding the extrusion strip 27 and the steel strand 61 into the first threading hole 23, moving the extrusion locking device 2 to the end part of the steel strand 61, enabling the stirrup 28 to be located in the counter bore 29 of the extrusion locking device 2, and enabling the extrusion strip 27 to enter the first threading hole 23; 4): the extrusion strips 27 are extruded to form an extrusion bonding material layer 25, when the extrusion tooling extrudes the extrusion locking device 2, the deformation groove 24 begins to deform, two side surfaces are attached, the extrusion strips 27 in the first threading holes 23 begin to crack under the action of extrusion force to become particles, and the particles are filled in the space formed by the gap of the outer ring of the steel strand 61 and the first threading holes 23 to form the extrusion bonding material layer 25, so that the sliding friction force of the steel strand 61 in the first threading holes 23 is increased, the extrusion bonding force of the extrusion locking device 2 and the steel strand 61 is further increased, each steel strand 61 in the finished cable body 6 is uniformly stressed, and the service life of the cable is prolonged. Meanwhile, the length of the extrusion locking device 2 can be shortened, the expected gripping force can be achieved, and materials are saved. As shown in fig. 10 and 11, the cross section of the extrusion strip 27 is an isosceles triangle strip, the length of the extrusion strip is the same as that of the first threading hole 23, the extrusion strip is in a spiral state, and the spiral angle of the extrusion strip is the same as the spiral shape of the 6 steel wires on the outer ring of the steel strand 61. During the installation, the apex angle of extrusion strip 27 points to the inboard in two steel wire gaps in steel strand wires 61 outer lane, and the base is outwards for steel strand wires 61 outer lane is fuller rounding off more, is convenient for fill up six gaps in first through wires hole 23 and steel strand wires 61 outer lane, and extrusion strip 27 is the high brittle material of hardness, once receive the extrusion to burst apart and become the granule, and in the gap of steel strand wires 61 outer lane and the space that first through wires hole 23 formed were filled to these granules, formed extrusion bond to wrap up material layer 25. As shown in fig. 12 and 13, the stirrup 28 is shaped as a circular ring, the inner ring is provided with dovetail grooves 281 with the same number as the extrusion strips 27, the angles of the dovetail grooves 281 are the same as the vertex angles of the extrusion strips 27, the dovetail grooves are fixed at the ends of the steel strands 61, and the stirrup is placed in the counter bore 29 of the extrusion locking device 2 during manufacturing and is used for hooping and fixing the steel strands 61 and six extrusion strips 27.

Preferably, the extrusion locking device 2 sequentially comprises a first wedge-shaped taper section 22 and an extrusion deformation section 21 from front to back, the front end of the first wedge-shaped taper section 22 is a reduced end, and a second wedge-shaped taper section 32 matched with the first wedge-shaped taper section 22 is arranged on the inner wall of the anchor cup 3. In this embodiment, the wedge taper m of the first wedge-shaped taper section 22 is 10 °, in other embodiments, taper setting may be performed according to actual needs, and when the steel strand 61 is stressed, the first wedge-shaped taper section 22 of the extrusion locking device 2 is attached to the second wedge-shaped taper section 32 of the anchor cup 3; the extrusion deformation section 21 is an extrusion part reserved when the extrusion tool extrudes the extrusion locking device 2.

Preferably, the anchor cup 3 is provided with an annular groove 33 in the inner wall of the cavity, as shown in fig. 14. When the chilled casting filler material layer 4 is filled, the contact area between the chilled casting filler material layer 4 and the inner wall of the anchor cup 3 can be increased, and the anchoring efficiency is further improved.

Preferably, a first rounded corner 26 is arranged at a front hole of the first threading hole 23, so that the steel strand 61 can be conveniently inserted and installed.

Preferably, the two-sided apertures of the second threading hole 51 are provided with second rounded corners 52. On one hand, the steel strand 61 is convenient to insert and mount, meanwhile, the orifice is rounded, and smooth transition can protect the base body of the steel strand from being abraded due to repeated shuttling of the steel strand in the process of passing the prestressed tendon during rope making. On the other hand, the limiting plate 5 can be used in both the front and the back of the positioning hole 34 without affecting the above function of the second rounded corner 52.

As a preferable scheme, the composite anchoring inhaul cable further comprises a sealing cylinder 8, a sealing ring 9 and a transparent cover 10, wherein one end of the sealing cylinder 8 is connected with the front part of the anchor cup 3, the other end of the sealing cylinder is connected with the transparent cover 10, the finished cable body 6 penetrates through the transparent cover 10, the sealing ring 9 is arranged between the sealing cylinder 8 and the finished cable body 6, and the area from the limiting plate 5 to the transparent cover 10 forms a sealing section 200 of the composite anchoring inhaul cable, as shown in fig. 15. And the full waterproof sealing of the anchor head of the inhaul cable is realized. And a heat-shrinkable sleeve 11 is also arranged at the connecting area of the transparent cover 10 and the sealing cylinder 8 and at the inlet of the finished product cable body 6 penetrating through the transparent cover 10, so that the sealing effect is further improved.

Preferably, the sealing material layer 7 is filled in the sealing cylinder 8, the material of the sealing material layer 7 is high-strength epoxy paste cured at normal temperature, and high-grade silicone sealant and the like can be adopted in other embodiments. The rainwater is prevented from entering the anchor head to cause the corrosion of the steel strand 61 in the anchor head, so that the service life of the inhaul cable is prolonged.

Fig. 16 is a schematic diagram of the overall structure of the embodiment of the present invention.

Example two

The invention also provides a manufacturing method of the composite anchoring inhaul cable, which comprises the following steps:

step 1: stripping off the sheath layer of the outer ring of the finished cable body 6 according to the anchoring length requirement, stripping off the sheath layer of the inner ring of the steel strand 61, and cleaning each steel strand 61;

step 2: sequentially enabling the steel strand 61 to pass through the second threading hole 51 of the limiting plate 5, the anchor cup 3 and the first threading hole 23 of the extrusion locking device 2, and exposing the rear end of the extrusion locking device 2 for a certain length;

and step 3: inserting the rear end of the extrusion locking device 2 from one side of the through hole of the extrusion tool, starting the extrusion tool, pushing the extrusion locking device 2 to the other side of the through hole of the extrusion tool, and finishing the extrusion of the extrusion locking device 2;

and 4, step 4: and installing a limiting plate 5 at the front end of the anchor cup 3, and sleeving the anchor cup 3 on the extrusion locking device 2.

Although the invention has been described in detail above with reference to specific embodiments, it will be apparent to one skilled in the art that modifications or improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.