Novel expanded anchor cable

Abstract

The invention relates to the field of expansion anchor cables, in particular to a novel expansion anchor cable which comprises a base, a grouting pipe used for grouting is arranged on the base, a sliding part capable of moving during grouting is further arranged on the base, and an external expansion part capable of expanding outwards along with movement of the sliding part is arranged on the outer portion of the base. The sliding part comprises a grouting outer cylinder which is fixedly connected to the base and communicates with the grouting pipe, a grouting inner cylinder which is arranged in the grouting outer cylinder in a sliding manner, and a connecting rod I which is fixedly connected to one side of the grouting inner cylinder; the method has the beneficial effects that expansion of the anchor cable is completely pushed by grout during grouting, other mechanical devices are not needed for assistance, a special construction technology is not needed either, and actual use is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of expanded body anchor cables, and in particular to a novel expanded body anchor cable. Background Art

[0002] In the field of geotechnical engineering, slope stability has always been a key issue in engineering design and construction. With the acceleration of urbanization and the continuous expansion of infrastructure construction, slope management projects are facing increasingly complex construction conditions and higher safety requirements. Traditional anchor cable technology connects the slope rock and soil with stable bedrock through prestressed steel strands, effectively improving the integrity and stability of the slope, and is an indispensable and important means of slope management. However, when dealing with complex geological conditions, large deformation slopes and high stress environments, the anchoring capacity and bearing capacity of traditional anchor cables are often insufficient.

[0003] In this context, the expanded anchor cable emerged as an innovative slope reinforcement technology. On the basis of maintaining the basic structure of the traditional anchor cable, the expanded anchor cable forms a grouting combination with a larger diameter at the front end of the anchor cable through a specially designed anchor head or grouting process. This design significantly increases the contact area between the anchor cable and the rock and soil, thereby improving the anchoring force and bearing capacity of the anchor cable. The formation of the grouting combination not only enhances the bonding strength between the anchor cable and the rock and soil, but also further improves the physical and mechanical properties of the rock and soil through the hardening effect of the grouting material, providing a more reliable guarantee for the stability of the slope.

[0004] However, despite the many theoretical advantages of expanded anchor cables, they still face many challenges in practical application. Existing expanded anchor cables often rely on complex mechanical devices or special construction processes during the expansion process, which not only increases the difficulty and cost of construction, but may also have an adverse impact on the surrounding environment.

[0005] Therefore, a new type of expanded anchor cable is needed to overcome the occurrence of the above problems. Summary of the invention

[0006] In order to solve the above problems, an embodiment of the present invention provides a new type of expanded anchor cable, which achieves the purpose of solving the problems raised in the background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a new type of expanded anchor cable, comprising a base, a grouting pipe for grouting is arranged on the base, a sliding part is also arranged on the base to move due to the action of slurry during grouting, and an external expansion part is arranged on the outside of the base to expand outwards as the sliding part moves;

[0008] The sliding part comprises a grouting outer cylinder fixedly connected to the base and communicating with the grouting pipe, a grouting inner cylinder slidably arranged inside the grouting outer cylinder, and a connecting rod 1 fixedly connected to one side of the grouting inner cylinder;

[0009] The outward expansion part includes a plurality of outward expansion plates 1, an outward expansion plate 2 hinged on one side of the outward expansion plate 1, an outward expansion body 1 hingedly arranged on the other side of the outward expansion plate 1, a spring 1 arranged between the plurality of outward expansion bodies 1, a connecting rod 2 hingedly arranged on one side of the outward expansion body 1, an outward expansion body 2 hingedly arranged on one side of the outward expansion plate 2, a guide groove provided inside the outward expansion body 2, and a guide rod fixedly connected to the base for use with the guide groove; the connecting rod 2 and the connecting rod 1 are hingedly arranged;

[0010] The base is provided with a limiting rod for limiting the outward expansion of the outward expansion body 1.

[0011] As a further improvement of the above technical solution:

[0012] A grout outlet hole is provided on the side wall of the grouting inner cylinder.

[0013] The base is provided with a locking portion for locking the position of the sliding portion;

[0014] The locking part comprises a locking buckle hingedly arranged on the base, a spring 2 arranged between the base and the locking buckle, and a locking rod fixedly connected to one side of the grouting inner cylinder and used in conjunction with the locking buckle.

[0015] A plurality of connecting parts are provided between the plurality of first external expansion plates and between the plurality of second external expansion plates;

[0016] The connecting part includes two telescopic rods and a connecting seat hingedly arranged at one end of the telescopic rod; the two telescopic rods are hingedly arranged together through a connecting key; and the connecting seat is rotatably arranged on the side of the first external expansion plate or the side of the second external expansion plate.

[0017] The base includes a base plate for connecting the steel strand, a limit rod fixedly connected to the base plate, and a tapered end fixedly connected to the other end of the limit rod; the outer expansion body 1 and the outer expansion body 2 are both provided with grooves used in conjunction with the limit rod.

[0018] A limiting groove is provided at the connection between the outer expansion body 1 and the outer expansion plate 1, and the limiting rod is located inside the limiting groove.

[0019] The beneficial effects of the embodiments of the present invention are:

[0020] When in actual use, the device is inserted into the opened hole, the grouting pipe is connected to the slurry delivery pipe, and the slurry enters the interior of the grouting outer cylinder through the grouting pipe. As the slurry increases, the grouting inner cylinder slides along the interior of the grouting outer cylinder under the push of the slurry, thereby driving the outer expansion body 1 to move through the connecting rod 1 and the connecting rod 2. At this time, due to the limiting effect of the limiting rod, the outer expansion body 1 does not expand, and the outer expansion body 2 does not move to the corner of the guide rod; as the grouting inner cylinder continues to move, when the outer expansion body 1 detaches from the end of the limiting rod, the outer expansion body 1 is elastically expanded under the action of the spring 1. At the same time, the outer expansion body 2 moves to the corner of the guide rod, that is, the outer expansion body 2 also expands; with the further movement of the grouting inner cylinder, the outer expansion plate 1 and the outer expansion plate 2 expand, and the outer expansion body 2 moves to the end of the guide rod, so that the outer expansion body 2 expands to the maximum position; when the movement of the grouting inner cylinder ends, the grouting hole leaks from the inside of the grouting outer cylinder, so that the slurry flows out of the slurry hole, and the slurry is poured into the entire hole; that is, the expansion of the anchor cable is completely driven by the slurry during grouting, and does not require other mechanical devices for assistance, nor does it require special construction technology, which is convenient for practical use;

[0021] When the movement of the grouting inner cylinder is finished, the locking rod moves to the locking buckle, and under the elastic force of the second spring, the locking buckle locks the locking rod, that is, the position of the grouting inner cylinder is locked. The position of the grouting inner cylinder directly determines the expansion of the outer expansion part, that is, locking the position of the grouting inner cylinder is equivalent to locking the expansion of the outer expansion part, so that the outer expansion part no longer expands or contracts, ensuring the stability of the anchor cable in the hole;

[0022] The connecting seat is rotatably arranged on the side of the outer expansion plate 1 or the side of the outer expansion plate 2; when the outer expansion plate 1 and the outer expansion plate 2 are expanded, the connecting part follows and rotates, turns, stretches and lengthens, and multiple outer expansion plates 1 and multiple outer expansion plates 2 are connected through the connecting part, so that the connecting part, the outer expansion plate 1 and the outer expansion plate 2 together form an outer expansion structure, thereby improving the stability of the anchor cable expansion;

[0023] When the limiting rod is located inside the limiting groove, firstly, the limiting rod can ensure that the expansion of the outward expansion body 1 is limited. At the same time, since the outward expansion plate 1 needs to rotate during expansion, the limiting rod located inside the limiting groove can limit the rotation of the outward expansion plate 1. That is, the expansion of the outward expansion body 1 can be limited by the limiting rod, and the expansion of the outward expansion plate 1 can also be limited. It is ensured that under the limiting action of the limiting rod, the outward expansion part can expand after moving to the appropriate position, so that the entire device can finally reach the ideal expansion state after subsequent deformation.

[0024] The novel expanded body anchor cable of the present invention drives the expansion of the expansion part through the sliding part which moves with the slurry, and utilizes spring one, guide rod, expansion body one, expansion body two, expansion plate one, expansion plate, etc. to realize the variable cross-section and diameter expansion of the expansion part, so that the anchor cable can achieve better anchoring effect after grouting is completed; the present invention has the advantages of simple structure, easy operation and quick assembly, and completely relies on the promotion of slurry during grouting to realize the expansion of the anchor cable, and does not need to rely on complex mechanical devices, so it is convenient for the smooth implementation of on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure after the present invention is expanded;

[0027] Figure 3 It is a structural schematic diagram of the sliding part of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the external expansion part of the present invention;

[0029] Figure 5 for Figure 4 A schematic diagram of the structure enlargement at the center A;

[0030] Figure 6 It is a structural schematic diagram of the grouting outer cylinder of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the grouting inner cylinder of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of an external expansion body of the present invention;

[0033] Fig. 9 This is a schematic diagram of the structure of the outward-expanded body of the present invention after outward expansion;

[0034] Fig.10 It is a schematic diagram of the structure of the second external expansion body of the present invention;

[0035] Fig.11 This is a schematic diagram of the structure of the second outwardly expanded body of the present invention after outward expansion;

[0036] Fig.12 It is a schematic diagram of the structure at the tapered end of the present invention.

[0037] In the figure: 1, base; 2, grouting pipe; 3, sliding part; 4, expansion part; 5, limiting rod; 6, grouting hole; 7, locking part; 8, connecting part; 9, steel strand; 10, base plate; 11, limiting rod; 12, tapered end; 13, groove; 14, limiting groove;

[0038] 31. Grouting outer cylinder; 32. Grouting inner cylinder; 33. Connecting rod 1;

[0039] 41. Outward expansion plate 1; 42. Outward expansion plate 2; 43. Outward expansion body 1; 44. Spring 1; 45. Outward expansion body 2; 46. Guide groove; 47. Guide rod; 48. Connecting rod 2;

[0040] 71. Locking buckle; 72. Spring 2; 73. Locking rod;

[0041] 81. Telescopic rod; 82. Connecting seat; 83. Connecting key. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0043] See also Figures 1 to 12 The embodiment of the present invention discloses a novel expanded anchor cable, comprising a base 1, a grouting pipe 2 for grouting is arranged on the base 1, a sliding part 3 is also arranged on the base 1 for moving during grouting, and an external expansion part 4 is arranged on the outside of the base 1 for expanding outwards with the movement of the sliding part 3;

[0044] The sliding part 3 includes a grouting outer cylinder 31 fixedly connected to the base 1 and communicating with the grouting pipe 2, a grouting inner cylinder 32 slidably arranged inside the grouting outer cylinder 31, and a connecting rod 33 fixedly connected to one side of the grouting inner cylinder 32;

[0045] A grouting hole 6 is provided on the side wall of the grouting inner cylinder 32; a hemispherical clamping block can be provided inside the grouting outer cylinder 31. In the initial state, the grouting hole 6 and the hemispherical clamping block are clamped together, thereby preventing the grouting inner cylinder 32 from moving on its own inside the grouting outer cylinder 31;

[0046] The expansion part 4 includes a plurality of expansion plates 1 41, an expansion plate 2 42 hinged on one side of the expansion plate 1 41, an expansion body 1 43 hingedly arranged on the other side of the expansion plate 1 41, a spring 1 44 arranged between the plurality of expansion bodies 1 43, a connecting rod 2 48 hingedly arranged on one side of the expansion body 1 43, an expansion body 2 45 hingedly arranged on one side of the expansion plate 2 42, a guide groove 46 provided inside the expansion body 2 45, and a guide rod 47 fixedly connected to the base 1 for use with the guide groove 46; the connecting rod 2 48 and the connecting rod 1 33 are hingedly arranged; as shown in the figure, the guide rod 47 has a corner, and when the expansion body 2 45 is at the upper part of the corner of the guide rod 47, the expansion body 2 45 remains in its original state and can move up and down, and when the expansion body 2 45 moves to the corner of the guide rod 47, as the expansion body 2 45 continues to move, the expansion body 2 45 begins to expand;

[0047] The base 1 is provided with a limiting rod 5 for limiting the outward expansion of the outward expansion body 43; under the limiting action of the limiting rod 5, the outward expansion body 43 is limited before the entire structure starts working and during the initial operation of the entire structure, so that it cannot expand and deform outward, so that the outward expansion body 43 only moves vertically without changing its diameter until the anchor cable reaches the predetermined position and grouting begins. Then, under the push of the grout, the outward expansion body 43 breaks away from the limitation of the limiting rod 5, and the outward expansion body 43 starts to expand outward, and the diameter of the enclosed circle gradually increases, thereby realizing the diameter change of the outward expansion body 43;

[0048] In actual use, the device is inserted into the hole that has been opened, and the grouting pipe 2 is connected to the slurry delivery pipe. The slurry enters the interior of the grouting outer cylinder 31 through the grouting pipe 2. As the slurry increases, the grouting inner cylinder 32 slides along the interior of the grouting outer cylinder 31 under the push of the slurry, thereby driving the outer expansion body 1 43 to move through the connecting rod 1 33 and the connecting rod 2 48. At this time, due to the limiting effect of the limiting rod 5, the outer expansion body 1 43 does not expand, and the outer expansion body 2 45 does not move to the corner of the guide rod 47;

[0049] As the grouting inner cylinder 32 continues to move, when the outer expansion body 1 43 is separated from the end of the limiting rod 5, the outer expansion body 1 43 expands under the elastic force of the spring 1 44, and at the same time, the outer expansion body 2 45 moves to the corner of the guide rod 47, that is, the outer expansion body 2 45 also expands;

[0050] As the grouting inner cylinder 32 moves further, the outer expansion plate 1 41 and the outer expansion plate 2 42 expand, and the outer expansion body 2 45 moves to the end of the guide rod 47, so that the outer expansion body 2 45 expands to the maximum position;

[0051] When the movement of the grouting inner cylinder 32 is finished, the grouting hole 6 leaks out from the inside of the grouting outer cylinder 31, so that the slurry flows out from the grouting hole 6, so that the slurry is poured into the entire hole;

[0052] That is, the expansion of the anchor cable is completely driven by the slurry during grouting, and does not require the assistance of other mechanical devices or special construction technology, which is convenient for practical use.

[0053] As a further illustration of this application:

[0054] The base 1 is provided with a locking portion 7 for locking the position of the sliding portion 3;

[0055] The locking part 7 includes a locking buckle 71 hingedly arranged on the base 1, a spring 72 arranged between the base 1 and the locking buckle 71, and a locking rod 73 fixedly connected to one side of the grouting inner cylinder 32 and used in conjunction with the locking buckle 71;

[0056] When the movement of the grouting inner cylinder 32 is completed, the locking rod 73 moves to the locking buckle 71, and under the elastic force of the spring 72, the locking buckle 71 locks the locking rod 73, that is, the position of the grouting inner cylinder 32 is locked. The position of the grouting inner cylinder 32 directly determines the expansion of the outer expansion part 4, that is, locking the position of the grouting inner cylinder 32 is equivalent to locking the expansion of the outer expansion part 4, so that the outer expansion part 4 no longer expands or contracts, thereby ensuring the stability of the anchor cable in the hole.

[0057] Furthermore, the locking rod 73 is an inverted cone structure with a slightly larger diameter at the cylindrical front end, and the locking buckle 71 is provided with a barb structure. The locking buckle 71 locks the locking rod 73 by cooperating with the inverted cone structure at the lower end of the locking rod 73 and the barb structure of the locking buckle 71.

[0058] As a further illustration of this application:

[0059] A plurality of connecting parts 8 are provided between the plurality of outer expansion plates 1 41 and between the plurality of outer expansion plates 2 42;

[0060] The connecting portion 8 includes two telescopic rods 81 and a connecting seat 82 hingedly arranged at one end of the telescopic rod 81; the two telescopic rods 81 are hingedly arranged together by a connecting key 83; the connecting seat 82 is rotatably arranged on the side of the outward expansion plate 41 or the side of the outward expansion plate 42; when the outward expansion plate 41 and the outward expansion plate 42 are expanded, the connecting portion 8 follows and rotates, turns, stretches and lengthens, and multiple outward expansion plates 41 and multiple outward expansion plates 42 are connected through the connecting portion 8, so that the connecting portion 8, the outward expansion plate 41 and the outward expansion plate 42 together form an outward expansion structure, thereby improving the stability of the anchor cable expansion.

[0061] As a further illustration of this application:

[0062] The base 1 includes a base plate 10 for connecting the steel strand 9, a limit rod 11 fixedly connected to the base plate 10, and a tapered end 12 fixedly connected to the other end of the limit rod 11; the limit rod 11 is detachable and used to maintain the stability of the entire device; the outer expansion body 1 43 and the outer expansion body 2 45 are both provided with a groove 13 used in conjunction with the limit rod 11; the tapered end 12 facilitates the insertion of the anchor cable into the hole;

[0063] The outer expansion body 1 43 and the outer expansion body 2 45 are moved in cooperation with the groove 13 and the limiting rod 11 , thereby ensuring the stability of the outer expansion body 1 43 and the outer expansion body 2 45 during movement.

[0064] As a further illustration of this application:

[0065] The limiting rod 5 is arranged at the outermost edge around the lower part of the base plate 10, and a limiting groove 14 is arranged at the connection between the outward expansion body 43 and the outward expansion plate 41, and the limiting rod 5 is located inside the limiting groove 14. When the limiting rod 5 is located inside the limiting groove 14, firstly, the limiting rod 5 can ensure that the expansion of the outward expansion body 43 is limited. At the same time, since the outward expansion plate 41 needs to rotate during expansion, the limiting rod 5 located inside the limiting groove 14 can limit the rotation of the outward expansion plate 41, that is, the expansion of the outward expansion body 43 can be limited by the limiting rod 5, and the expansion of the outward expansion plate 41 can also be limited. Under the limiting action of the limiting rod 5, before the entire structure starts working and during the initial operation of the entire structure, the outward expansion body 43 is limited so that it cannot expand and deform outward, so that it only moves vertically without changing the diameter of the entire device, until the anchor cable reaches the predetermined position. After grouting begins, under the push of the slurry, the outward expansion body 43 breaks away from the restriction of the limiting rod 5 and begins to expand outward and change diameter.

[0066] As a further illustration of this application:

[0067] Spring 1 44 is a strong spring, and in a non-working state, the strong spring is in a compressed state; when the expansion part moves outward, due to the existence of the spring elastic force, the expansion body 1 43 is separated, and at the same time, after the expansion part is expanded outward, it is used to connect multiple expansion bodies 1 43 to make the structure more stable.

[0068] How to use this application:

[0069] Before the entire device is deformed, the device is placed inside the drilled hole, the grouting pipe 2 is connected to the slurry delivery pipe, and the slurry enters the interior of the grouting outer cylinder 31 through the grouting pipe 2 to perform the grouting operation;

[0070] Under the push of the slurry, the grouting inner cylinder 32 slides along the inside of the grouting outer cylinder 31, thereby driving the outer expansion body 1 43 to move through the connecting rod 1 33 and the connecting rod 2 48. At this time, due to the limiting effect of the limiting rod 5, the outer expansion body 1 43 does not expand, and the outer expansion body 2 45 does not move to the corner of the guide rod 47;

[0071] As the grouting inner cylinder 32 continues to move, when the outer expansion body 1 43 is separated from the end of the limiting rod 5, the outer expansion body 1 43 expands under the elastic force of the spring 1 44, and at the same time, the outer expansion body 2 45 moves to the corner of the guide rod 47, that is, the outer expansion body 2 45 also expands;

[0072] As the grouting inner cylinder 32 moves further, the outer expansion plate 1 41 and the outer expansion plate 2 42 expand, and the outer expansion body 2 45 moves to the end of the guide rod 47, so that the outer expansion body 2 45 expands to the maximum position;

[0073] When the movement of the grouting inner cylinder 32 is finished, the locking rod 73 moves to the locking buckle 71, and under the elastic force of the spring 72, the locking buckle 71 locks the locking rod 73, that is, the expansion of the outward expansion part 4 is locked, so that the outward expansion part 4 no longer expands or contracts; at the same time, the slurry outlet hole 6 leaks out from the inside of the grouting outer cylinder 31, so that the slurry flows out from the slurry outlet hole 6, and the slurry is poured into the entire hole.

[0074] The present invention can achieve variable cross-section and expanded diameter in rock and soil through deformation, forming the required expanded anchor cable, thereby ultimately achieving a better anchoring effect; at the same time, the device is detachable, quick to assemble, and easy to operate, which is convenient for the smooth implementation of on-site construction, and some components can be changed and replaced according to actual needs to meet and adapt to the needs of different design and construction.

[0075] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0076] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0078] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A new type of expanded anchor cable, characterized in that: The invention comprises a base (1), wherein a grouting pipe (2) for grouting is arranged on the base (1), a sliding part (3) which moves due to the action of slurry during grouting is also arranged on the base (1), and an expansion part (4) which expands outwards as the sliding part (3) moves is arranged on the outside of the base (1).

2. The novel expanded anchor cable according to claim 1 is characterized in that: The sliding part (3) comprises a grouting outer cylinder (31) fixedly connected to the base (1) and communicating with the grouting pipe (2), a grouting inner cylinder (32) slidably arranged inside the grouting outer cylinder (31), and a connecting rod (33) fixedly connected to one side of the grouting inner cylinder (32).

3. The novel expanded anchor cable according to claim 1 is characterized in that: The outward expansion portion (4) comprises a plurality of outward expansion plates (41), an outward expansion plate (42) hingedly connected to one side of the outward expansion plate (41), an outward expansion body (43) hingedly arranged on the other side of the outward expansion plate (41), a spring (44) arranged between the plurality of outward expansion bodies (43), a connecting rod (48) hingedly arranged on one side of the outward expansion body (43), an outward expansion body (45) hingedly arranged on one side of the outward expansion plate (42), a guide groove (46) provided inside the outward expansion body (45), and a guide rod (47) fixedly connected to the base (1) for use in conjunction with the guide groove (46); the connecting rod (48) and the connecting rod (33) are hingedly arranged; and a limiting rod (5) for limiting the outward expansion of the outward expansion body (43) is arranged on the base (1).

4. The novel expanded anchor cable according to claim 1 is characterized in that: A grout outlet hole (6) is provided on the side wall of the grouting inner cylinder (32).

5. The novel expanded anchor cable according to claim 1 is characterized in that: The base (1) is provided with a locking portion (7) for locking the position of the sliding portion (3); The locking portion (7) comprises a locking buckle (71) hingedly arranged on the base (1), a second spring (72) arranged between the base (1) and the locking buckle (71), and a locking rod (73) fixedly connected to one side of the grouting inner cylinder (32) and used in conjunction with the locking buckle (71).

6. The novel expanded anchor cable according to claim 1 is characterized in that: A plurality of connecting parts (8) are provided between the plurality of outer expansion plates 1 (41) and between the plurality of outer expansion plates 2 (42); The connecting portion (8) comprises two telescopic rods (81) and a connecting seat (82) hingedly arranged at one end of the telescopic rod (81); the two telescopic rods (81) are hingedly arranged together via a connecting key (83); and the connecting seat (82) is rotatably arranged on the side of the first external expansion plate (41) or the side of the second external expansion plate (42).

7. The novel expanded anchor cable according to claim 1 is characterized in that: The base (1) comprises a base plate (10) for connecting a steel strand (9), a limit rod (11) fixedly connected to the base plate (10), and a tapered end (12) fixedly connected to the other end of the limit rod (11); the outer expansion body 1 (43) and the outer expansion body 2 (45) are both provided with a groove (13) for use with the limit rod (11).

8. The novel expanded anchor cable according to claim 1 is characterized in that: A limiting groove (14) is provided at the connection between the outer expansion body (43) and the outer expansion plate (41), and the limiting rod (5) is located inside the limiting groove (14).

Images