Composite anchor cable and manufacturing method thereof

Abstract

The present invention discloses a composite anchor cable and a manufacturing method thereof, which relates to the technical field of bridge construction. The composite anchor cable comprises a finished cable body and two or more steel strands, and also comprises an extrusion locking device, an anchor cup and a limit plate. The anchor cup is sleeved on the extrusion locking device, and the limit plate is arranged at the front end of the anchor cup, wherein: the number and arrangement of the first threading holes provided by the extrusion locking device and the second threading holes provided by the limit plate are the same as the arrangement and number of the steel strands; the cavity surrounded by the anchor cup, the extrusion locking device and the limit plate is filled with a cold-cast gripping material layer. The device provided by the present invention can effectively solve the problem of unequal length of prestressed tendons in the cable body caused by bending force during the manufacturing and lifting process of the cable, ensure that each prestressed tendon of the cable body is subjected to uniform force, improve the uniformity of force of the cable, and thus increase the service life of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a composite anchoring cable and a manufacturing method thereof. Background Art

[0002] The manufacturing process of the cold-cast finished cable is as follows: the prestressed tendons of the cable body are installed into the wire dividing plate (ring), in which the prestressed tendons can slide and move, and then the wire dividing plate (ring) is pushed into the anchor cup, and two half-type restraint rings are installed at the outlet of the anchor cup. The cable is relatively long, and generally both ends can be lifted at the same time and the anchor head can be made at the same time. Since the prestressed tendons in the cable body are arranged in layers in a hexagonal shape, the cable body bends after lifting, and is affected by the twisting of the cable body. The originally flat end face of the cable body will bend into an inclined surface, resulting in an uneven end face of the prestressed tendon. In addition, because there is a gap between the prestressed tendon and the wire dividing plate (ring) when making the anchor head, the prestressed tendons can slide freely in the corresponding holes of the wire dividing plate (ring). The bending force during the lifting of the cable body causes the prestressed tendons at the end face of the cable body to be of unequal length when making the cable anchor head, and even the prestressed tendons bend in the anchor cup section, resulting in unequal lengths of the prestressed tendons at the free end of the cable body, which in turn affects the uneven force on each prestressed tendon in the cable body. This phenomenon has the greatest impact on short cables. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a composite anchoring cable, which effectively solves the problem of unequal length of prestressed tendons caused by bending force on the prestressed tendons in the cable body during the manufacturing and lifting process of the cable, ensures that each prestressed tendon in the cable body is subjected to uniform force, improves the force uniformity of the cable and thereby increases the service life of the cable.

[0004] To achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0005] A composite anchor cable comprises a finished cable body, wherein the finished cable body comprises two or more steel strands, an extrusion locking device, an anchor cup and a limit plate, wherein:

[0006] The extrusion locking device is provided with first threading holes with apertures matching the steel strands, the arrangement and number of the first threading holes on the extrusion locking device are the same as the arrangement and number of the steel strands on the finished cable body, deformation grooves are provided between adjacent first threading holes, the two sides of the deformation grooves are fitted, all the deformation grooves are parallel to each other or on the same straight line, and the first threading holes and the deformation grooves pass through the extrusion locking device front and back;

[0007] The anchor cup is sleeved on the extrusion locking device;

[0008] The limit plate is arranged at the front end of the anchor cup, and the limit plate is provided with second threading holes penetrating through both end surfaces thereof and having a hole diameter adapted to the steel strand, and the arrangement and number of the second threading holes on the limit plate are the same as the arrangement and number of the steel strands on the finished cable body;

[0009] The cavity surrounded by the anchor cup, the extrusion locking device and the limit plate is filled with a layer of cold cast gripping material;

[0010] The steel strands are installed in the second threading hole and the first threading hole.

[0011] Furthermore, it also includes an extruded gripping material layer, which is arranged in the space formed by the first threading hole and the gap between the outer ring of the steel strand.

[0012] Furthermore, the extrusion locking device includes a first wedge-shaped tapered section and an extrusion deformation section from front to back, the front end of the first wedge-shaped tapered section is a reduced end, and the inner wall of the anchor cup is provided with a second wedge-shaped tapered section that cooperates with the first wedge-shaped tapered section.

[0013] Furthermore, the anchor cup is provided with an annular groove on the inner wall of the cavity.

[0014] Furthermore, a first rounded corner is provided at the front opening of the first threading hole.

[0015] Furthermore, both side openings of the second threading hole are provided with second rounded corners.

[0016] Furthermore, it also includes a sealing tube, a sealing ring and a transparent cover, one end of the sealing tube is connected to the front of the anchor cup, and the other end is connected to the transparent cover, the finished cable body passes through the transparent cover, and the sealing ring is arranged between the sealing tube and the finished cable body.

[0017] Furthermore, a sealing material layer is poured into the sealing cylinder.

[0018] The present invention also provides a method for manufacturing a composite anchor cable, comprising the following steps:

[0019] Step 1: According to the anchoring length requirements, remove the sheath layer of the outer ring of the finished cable body, remove the sheath layer of the inner ring of the steel strand, and clean each steel strand;

[0020] Step 2: Pass the steel strand through the second threading hole of the limit plate, the anchor cup and the first threading hole of the extrusion locking device in sequence, exposing a certain length of the rear end of the extrusion locking device;

[0021] Step 3: insert the rear end of the extrusion locking device 2 from one side of the through hole of the extrusion tooling, start the extrusion tooling, push the extrusion locking device 2 to the other side of the through hole of the extrusion tooling, and complete the extrusion of the extrusion locking device 2;

[0022] Step 4: Install the limit plate on the front end of the anchor cup, and sleeve the anchor cup on the extrusion locking device.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The composite anchor cable provided by the present invention has the same arrangement and number of the first threading holes on the extrusion locking device and the arrangement and number of the second threading holes on the limit plate as the arrangement and number of the steel strands on the finished cable body. When the extrusion locking device tightly grips the steel strands, the extrusion locking device and the limit plate are used in combination to ensure that the steel strands in the anchoring section (from the limit plate in the anchor cup to the extrusion locking device area) are parallel to each other and of equal length, so that each steel strand in the finished cable body is evenly stressed, thereby improving the service life of the cable; at the same time, it also ensures that the steel strands have no folded corners in the anchoring section (from the limit plate in the anchor cup to the extrusion locking device area), thereby improving the fatigue life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the anchoring section according to an embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the finished cable body structure of prestressed tendons according to an embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of the arrangement structure of prestressed tendons in a finished prestressed tendon cable body according to an embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the structure of the limiting plate according to an embodiment of the present invention.

[0029] Figure 5 for Figure 4 M-direction cross-section.

[0030] Figure 6 It is a schematic diagram of the structure of the extrusion locking device before extrusion according to an embodiment of the present invention.

[0031] Figure 7 for Figure 6 Left view of .

[0032] Figure 8 It is a schematic diagram of the structure of the extrusion locking device formed after extrusion according to an embodiment of the present invention.

[0033] Fig. 9 for Fig.12 Left view of .

[0034] Fig.10 This is a practical diagram of the extruded strip structure according to an embodiment of the present invention.

[0035] Fig.11 for Figure 8 Schematic cross section.

[0036] Fig.12 Schematic diagram of the stirrup structure according to an embodiment of the present invention.

[0037] Fig.13 It is a schematic diagram of the structure of the stirrup bundling extruded strip according to an embodiment of the present invention.

[0038] Fig.14 Schematic diagram of the anchor cup structure according to an embodiment of the present invention.

[0039] Fig.15 It is a schematic diagram of the sealing section structure of an embodiment of the present invention.

[0040] Fig.16 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0041] In the figure, 1-end cover, 2-extrusion locking device, 21-extrusion deformation section, 22-first wedge-shaped tapered section, 23-first threading hole, 24-deformation groove, 25-extrusion gripping material layer, 26-first chamfered corner, 27-extrusion strip, 28-hoops, 281-dovetail groove, 29-countersunk hole, 3-anchor cup, 31-external thread, 32-second wedge-shaped tapered section, 33-annular groove, 34-positioning hole, 4-cold cast gripping material layer, 5-limiting plate, 51-second threading hole, 52-second chamfered corner, 6-finished cable body, 61-steel strand, 7-sealing material layer, 8-sealing tube, 9-sealing ring, 10-transparent cover, 11-heat shrinkable sleeve, 100-anchoring section, 200-sealing section. DETAILED DESCRIPTION

[0042] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is a description of the embodiments in conjunction with the accompanying drawings.

[0043] Embodiment 1

[0044] like Figures 1 to 7 The composite anchor cable comprises a finished cable body 6, wherein the finished cable body 6 comprises twelve steel strands 61, and further comprises an extrusion locking device 2, an anchor cup 3 and a limit plate 5, wherein:

[0045] The extrusion locking device 2 is provided with a first threading hole 23 with an aperture matching the steel strand 61. The diameter of the first threading hole 23 is slightly larger than the outer diameter of the steel strand 61, and the number is consistent with the number of the steel strand 61. The arrangement of the first threading holes 23 on the extrusion locking device 2 is also consistent with the arrangement of the steel strand 61 on the finished cable body 6. Deformation grooves 24 are provided between adjacent first threading holes 23. The deformation grooves 24 connect the adjacent first threading holes 23. The first threading holes 23 and the deformation grooves 24 penetrate the extrusion locking device 2 from front to back. When the extrusion locking device 2 is cold extruded, the two sides of the deformation grooves 24 fit together, so that the extrusion locking device 2 and the steel strand 61 are tightly wrapped into one body, and all the deformation grooves are parallel to each other or on the same straight line.

[0046] The anchor cup 3 is sleeved on the extrusion locking device 2, and the inner wall of the anchor cup 3 is provided with a limit position to prevent the extrusion locking device 2 from being separated from the anchor cup 3 under the pulling action of the steel strand 61. The extrusion locking device 2 is at the rear of the anchor cup 3, and the outer surface of the anchor cup 3 is provided with an external thread 31, which is used to connect the force transmission parts of the bridge structure, such as nuts, pin-jointed fork ears, etc., through a knob.

[0047] The front end of the anchor cup 3 is provided with a positioning hole 34, and the limiting plate 5 is made of a wear-resistant nylon plate to protect the steel strand matrix from being worn during the process of threading the prestressed tendons during cable making. The limiting plate 5 is arranged at the positioning hole 34, and the limiting plate 5 is provided with second threading holes 51 that penetrate through its two end faces and whose apertures are adapted to the steel strand 61. The diameter of the second threading holes 51 is slightly larger than the outer diameter of the steel strand 61, and the number is also consistent with the number of the steel strand 61. The arrangement of the second threading holes 51 on the limiting plate 5 is also consistent with the arrangement of the steel strand 61 on the finished cable body 6;

[0048] The rear end of the anchor cup 3 is provided with an end cover 1 for sealing;

[0049] The cavity surrounded by the anchor cup 3, the extrusion locking device 2 and the limiting plate 5 is filled with a cold cast gripping material layer 4, and the cold cast gripping material layer 4 is made of epoxy mortar.

[0050] The steel strand 61 is installed in the second threading hole 51 and the first threading hole 23 .

[0051] The working principle of this device is as follows:

[0052] First, twelve strands of steel wire 61 are passed 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 by the extrusion tooling, which is a circular through-hole die. The rear end of the extrusion locking device 2 is inserted from one side of the through-hole of the extrusion tooling and pushed to the other side of the through-hole of the extrusion tooling, and the extrusion of the extrusion locking device 2 is completed. After extrusion, the outer diameter of the extrusion locking device 2 becomes smaller, the deformation groove 24 is deformed by extrusion, the two side surfaces are fitted, and the extrusion locking device 2 is extruded and formed, and the steel strands 61 are tightly gripped and wrapped, as shown in FIG. Figures 8 to 9 Finally, the limit plate 5 is installed at the front end of the anchor cup 3, and the anchor cup 3 is sleeved on the extrusion locking device 2 to achieve the first level anchoring of the cable.

[0053] At the same time, the cold cast gripping material layer 4 also grips the steel strand 61 to form a second level of anchoring. The epoxy mortar slurry can also be filled into the gap between the extrusion locking device 2 and the steel strand 61 to eliminate the micro-wear between the extrusion locking device 2 and the steel strand 61 and improve the fatigue service life of the cable body; because the extrusion locking device 2 is used in conjunction with the limit plate 5, the steel strands 61 in the anchoring section 100 are parallel to each other and of equal length, and the space between each steel strand 61 is of the same size, which can effectively ensure that each steel strand 61 has sufficient cold cast gripping material layer 4 material gripping, and different steel strands 61 are evenly gripped by the cold cast gripping material layer 4, further improving the service life of the cable.

[0054] 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 grips the steel strands 61, the extrusion locking device 2 and the limiting plate 5 are used in conjunction to ensure that the steel strands 61 in the anchoring section 100 (the area from the limiting plate 5 to the extrusion locking device 2) are parallel to each other and of equal length, so that each steel strand 61 in the finished cable body 6 is evenly stressed, thereby improving the service life of the cable; at the same time, it is also ensured that the steel strands 61 have no folded corners in the anchoring section 100, thereby improving the fatigue life of the cable;

[0055] As a preferred embodiment, it also includes an extrusion gripping material layer 25, and the extrusion gripping material layer 25 is arranged in the space formed by the gap between the first threading hole 23 and the outer circle of the steel strand 61. Specifically, the preparation method is as follows: 1): The extrusion strip 27 is arranged at the gap between the adjacent steel wires of the outer circle of the steel strand 61. Before the extrusion tooling performs the extrusion action on the extrusion locking device 2, when the steel strand 61 passes through the first threading hole 23 of the extrusion locking device 2, the end of the steel strand 61 is exposed from the first threading hole 23 by a length corresponding to the length of the extrusion strip 27, and the extrusion strip 27 is arranged at the gap between the adjacent steel wires of the outer circle of the exposed steel strand 61; in this embodiment, each steel strand 61 has seven steel wires. , one of the steel wires is in the middle, and there are six steel wires in the outer circle. These six steel wires form six gaps in the outer circle of the steel strand 61. Six extrusion strips 27 are installed at the six adjacent steel wire gaps in the outer circle of the steel strand 61. One end of the extrusion strip 27 is flush with the end of the steel strand 61, and the other end faces the first threading hole 23; 2): fix the extrusion strip 27 and the steel strand 61, and at the end of the steel strand 61, the stirrup 28 is sleeved on the outside of the extrusion strip 27 and the steel strand 61, and the extrusion strip 27 and the steel strand 61 are fixed at Together, the extrusion strip 27 is bundled at the gap between the steel wires adjacent to the outer ring of the steel strand 61; 3): the extrusion strip 27 and the steel strand 61 are sent into the first threading hole 23, and the extrusion locking device 2 is moved toward the end of the steel strand 61, so that the stirrup 28 is located in the countersunk hole 29 of the extrusion locking device 2, and the extrusion strip 27 enters the first threading hole 23; 4): the extrusion strip 27 is extruded to form an extrusion gripping material layer 25, and when the extrusion tooling extrudes the extrusion locking device 2, the deformation groove 24 opens The two sides of the cable body 23 begin to deform, and the extrusion strip 27 in the first threading hole 23 begins to break and become particles under the extrusion force. These particles fill the gap between the outer ring of the steel strand 61 and the space formed by the first threading hole 23 to form an extrusion gripping material layer 25, thereby increasing the sliding friction of the steel strand 61 in the first threading hole 23, and further increasing the extrusion gripping force between the extrusion locking device 2 and the steel strand 61, so that each steel strand 61 in the finished cable body 6 is evenly stressed, thereby increasing the service life of the cable. At the same time, the length of the extrusion locking device 2 can also be shortened to achieve the expected gripping force and save materials. Fig.10 and Fig.11 As shown, the extrusion strip 27 has an isosceles triangle cross section, and its length is the same as the length of the first threading hole 23. It is in a spiral state, and its spiral angle is consistent with the spiral shape of the six steel wires in the outer circle of the steel strand 61. During installation, the top angle of the extrusion strip 27 points to the inside of the gap between the two steel wires in the outer circle of the steel strand 61, and the bottom edge faces outward, making the outer circle of the steel strand 61 fuller and smoother, making it easier to fill the first threading hole 23 and the six gaps in the outer circle of the steel strand 61. The extrusion strip 27 is a brittle material with high hardness. Once it is squeezed, it breaks and becomes particles. These particles are filled into the space formed by the gap between the outer circle of the steel strand 61 and the first threading hole 23, forming an extruded gripping material layer 25. As shown in FIG. Fig.12 and Fig.13 As shown, the stirrup 28 is in the shape of a circular ring, and the inner ring is provided with dovetail grooves 281 with the same number as the extruded strips 27. The angle of the dovetail grooves 281 is consistent with the top angle of the extruded strips 27. It is fixed to the end of the steel strand 61 and is placed in the countersunk hole 29 of the extrusion locking device 2 during manufacturing to tighten and fix the steel strand 61 and the six extruded strips 27.

[0056] As a preferred solution, the extrusion locking device 2 includes a first wedge-shaped tapered section 22 and an extrusion deformation section 21 from front to back, the front end of the first wedge-shaped tapered section 22 is a reduced end, and the inner wall of the anchor cup 3 is provided with a second wedge-shaped tapered section 32 that cooperates with the first wedge-shaped tapered section 22. In this embodiment, the wedge taper m of the first wedge-shaped tapered section 22 is 10°, and in other embodiments, the taper can be set according to actual needs. When the steel strand 61 is stressed, the first wedge-shaped tapered section 22 of the extrusion locking device 2 and the second wedge-shaped tapered section 32 of the anchor cup 3 are fitted together; the extrusion deformation section 21 is an extrusion portion reserved when the extrusion tooling extrudes the extrusion locking device 2.

[0057] As a preferred solution, the anchor cup 3 is provided with an annular groove 33 on the inner wall of the cavity. Fig.14 When the chill-cast filling material layer 4 is filled, the contact area between the chill-cast filling material layer 4 and the inner wall of the anchor cup 3 can be increased, thereby improving the anchoring efficiency.

[0058] As a preferred solution, the front opening of the first threading hole 23 is provided with a first rounded corner 26 to facilitate the insertion and installation of the steel strand 61 .

[0059] As a preferred solution, the second threading hole 51 is provided with a second rounded corner 52 on both sides of the hole. On the one hand, it is convenient to insert and install the steel strand 61, and at the same time, the rounded corner at the hole mouth and the smooth transition can protect the base from being worn due to the repeated shuttle of the steel strand during the process of threading the prestressed tendons during cable making. On the other hand, the limit plate 5 can be used in both the positive and negative settings of the positioning hole 34 without affecting the above-mentioned function of the second rounded corner 52.

[0060] As a preferred solution, it also includes a sealing tube 8, a sealing ring 9 and a transparent cover 10. One end of the sealing tube 8 is connected to the front of the anchor cup 3, and the other end is connected to the transparent cover 10. The finished cable body 6 passes through the transparent cover 10. The sealing ring 9 is arranged between the sealing tube 8 and the finished cable body 6. The area from the limit plate 5 to the transparent cover 10 constitutes a sealing section 200 of the composite anchor cable. Fig.15 As shown, the cable anchor head is fully waterproof and sealed. A heat shrink sleeve 11 is also provided at the connection area between the transparent cover 10 and the sealing tube 8 and at the entrance where the finished cable body 6 passes through the transparent cover 10 to further improve the sealing effect.

[0061] As a preferred solution, a sealing material layer 7 is poured into the sealing tube 8, and the sealing material layer 7 is made of high-strength epoxy slurry that cures at room temperature. In other embodiments, high-grade silicone sealant can also be used. This prevents rainwater from entering the anchor head and causing corrosion of the steel strand 61 in the anchor head, thereby increasing the service life of the cable.

[0062] The overall structural diagram of the embodiment of the present invention is as follows Fig.16 shown.

[0063] Embodiment 2

[0064] The present invention also provides a method for manufacturing a composite anchor cable, comprising the following steps:

[0065] Step 1: according to the anchoring length requirement, the outer sheath layer of the finished cable body 6 is peeled off, the inner sheath layer of the steel strand 61 is peeled off, and each steel strand 61 is cleaned;

[0066] Step 2: Pass the steel strand 61 through the second threading hole 51 of the limit plate 5, the anchor cup 3 and the first threading hole 23 of the extrusion locking device 2 in sequence, exposing a certain length of the rear end of the extrusion locking device 2;

[0067] Step 3: insert the rear end of the extrusion locking device 2 from one side of the through hole of the extrusion tooling, start the extrusion tooling, push the extrusion locking device 2 to the other side of the through hole of the extrusion tooling, and complete the extrusion of the extrusion locking device 2;

[0068] Step 4: Install the limiting plate 5 on the front end of the anchor cup 3 , and sleeve the anchor cup 3 on the extrusion locking device 2 .

[0069] Although the present invention has been described in detail above with specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A composite anchor cable, comprising a finished cable body (6), wherein the finished cable body (6) comprises two or more steel strands (61), characterized in that: It also includes an extrusion locking device (2), an anchor cup (3) and a limit plate (5), wherein: The extrusion locking device (2) is provided with first threading holes (23) whose apertures are adapted to the steel strands (61); the arrangement and number of the first threading holes (23) on the extrusion locking device (2) are the same as the arrangement and number of the steel strands (61) on the finished cable body (6); deformation grooves (24) are provided between adjacent first threading holes (23); the two side surfaces of the deformation grooves (24) are fitted together; all the deformation grooves (24) are parallel to each other or on the same straight line; and the first threading holes (23) and the deformation grooves (24) penetrate the extrusion locking device (2) 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), and the limiting plate (5) is provided with second threading holes (51) penetrating through both end surfaces thereof and having a hole diameter adapted to the steel strand (61), 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 strand (61) on the finished cable body (6); The cavity surrounded by the anchor cup (3), the extrusion locking device (2) and the limit plate (5) is filled with a cold cast gripping material layer (4); The steel strand (61) is installed in the second threading hole (51) and the first threading hole (23); It also includes an extruded gripping material layer (25), the extruded gripping material layer (25) being arranged in a space formed by the first threading hole (23) and the gap of the outer ring of the steel strand (61); the extruded gripping material layer (25) includes an extrusion strip (27) arranged at the gap between adjacent steel wires of the outer ring of the steel strand (61), and when the extruded strip (27) is subjected to the extrusion force of the extrusion locking device (2), the extruded strip (27) begins to break and turns into particles that fill the space formed by the gap of the outer ring of the steel strand (61) and the first threading hole (23), thereby forming the extruded gripping material layer (25); The cross section of the extruded strip is an isosceles triangle strip, the length of which is consistent with the length of the first threading hole, and the strip is in a spiral state, and the spiral angle thereof is consistent with the spiral shape of the steel wire of the outer coil of the steel strand; It also includes stirrups that are sleeved on the outside of the extruded strips and the steel strands. The stirrups are in the shape of a circular ring, and the inner ring is provided with dovetail grooves that are the same in number as the extruded strips. The angle of the dovetail grooves is consistent with the top angle of the extruded strips. They are fixed to the ends of the steel strands and are placed in the countersunk holes of the extrusion locking device during production.

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

3. The composite anchor cable according to claim 2, characterized in that: The anchor cup (3) is provided with an annular groove (33) on the inner wall of the cavity.

4. The composite anchor cable according to claim 1, characterized in that: The front opening of the first threading hole (23) is provided with a first rounded corner (26).

5. The composite anchor cable according to claim 1, characterized in that: The second threading hole (51) is provided with second rounded corners (52) on both sides of the hole.

6. The composite anchor cable according to claim 1, characterized in that: It also comprises a sealing cylinder (8), a sealing ring (9) and a transparent cover (10); one end of the sealing cylinder (8) is connected to the front of the anchor cup (3), and the other end is connected to the transparent cover (10); the finished cable body (6) passes through the transparent cover (10); and the sealing ring (9) is arranged between the sealing cylinder (8) and the finished cable body (6).

7. The composite anchor cable according to claim 6, characterized in that: A sealing material layer (7) is poured into the sealing cylinder (8).

8. A method for manufacturing the composite anchor cable according to claim 1, characterized in that: The steps include: Step 1: according to the anchoring length requirement, the outer sheath layer of the finished cable body (6) is stripped off, the inner sheath layer of the steel strand (61) is stripped off, and each steel strand (61) is cleaned; Step 2: The steel strand (61) is passed through the second threading hole (51) of the limit plate (5), the anchor cup (3) and the first threading hole (23) of the extrusion locking device (2) in sequence, exposing a certain length of the rear end of the extrusion locking device (2); Step 3: insert the rear end of the extrusion locking device (2) from one side of the through hole of the extrusion tooling, start the extrusion tooling, push the extrusion locking device (2) to the other side of the through hole of the extrusion tooling, and complete the extrusion of the extrusion locking device (2); Step 4: Install the limit plate (5) on the front end of the anchor cup (3), and sleeve the anchor cup (3) onto the extrusion locking device (2).

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