Anchoring device for enhancing anchoring force of anchor cable

Abstract

The invention relates to the technical field of anchor cable anchoring, in particular to an anchoring device for enhancing anchor cable anchoring force, the anchoring device for enhancing anchor cable anchoring force comprises an anchor cable main body, the anchor cable main body is embedded in the inner side of a reserved drill hole formed in a side slope, and the anchoring device is characterized by comprising a first anchoring enhancing piece arranged at the bottom of the anchor cable main body, and a second anchoring enhancing piece arranged at the bottom of the anchor cable main body; the first anchoring reinforcing part comprises a vertical rod connected with the anchor cable body, a push disc, a connecting rod, a limiting assembly, an inserting rod and a base, the vertical rod is sleeved with the push disc, the base is fixed to the end, away from the push disc, of the vertical rod, the push disc is pivoted to the connecting rod, the connecting rod is pivoted to the limiting assembly and the push disc, one end of the inserting rod extends into the base, and the other end of the inserting rod is connected with the limiting assembly. In the process that the push disc slides down along the outer wall of the vertical rod, the push disc can move the limiting assembly in the direction away from the base through the connecting rod. According to the anchoring device for enhancing the anchoring force of the anchor cable, the limiting assembly can be prevented from rotating during anchoring, and the anchoring stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of anchor cable anchoring, and in particular to an anchoring device that enhances the anchoring force of an anchor cable. Background Art

[0002] In underground tunnel support, anchor cables are usually used for support. During the construction process, ordinary prestressed anchor cables are anchored into the rock mass through drilled holes by anchor heads, connecting the rock fracture zone with the stable surrounding rock, improving the shear strength of the rock mass, and inhibiting the displacement of the rock mass, which plays a vital role in strengthening the stability of the surrounding rock.

[0003] In the related art, an anchoring device for enhancing the anchoring force of the anchor cable is proposed, in which the exposed part of the second connecting member is slowly drilled into the expansion part, the iron sheet is completely expanded, and the inverted teeth on the iron sheet are embedded in the weak rock mass, thereby achieving the effect of enhancing the anchoring efficiency. However, in the above scheme, the way to increase the anchoring capacity is to slowly drill the exposed part of the second connecting member into the expansion part, so that the iron sheet is completely expanded, and the inverted teeth on the iron sheet are embedded in the weak rock mass, thereby achieving the effect of enhancing the anchoring efficiency. During this operation, the rotation of the second connecting member can easily drive the expansion part to rotate, and the stability is insufficient. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides an anchoring device that enhances the anchoring force of the anchor cable, which can prevent the limit assembly from rotating during anchoring and improve the stability during anchoring.

[0006] According to an embodiment of the present invention, the anchoring device for enhancing the anchoring force of the anchor cable comprises an anchor cable body, wherein the anchor cable body is buried inside a reserved borehole opened inside the slope, and is characterized in that it comprises: a first anchoring reinforcement member arranged at the bottom of the anchor cable body,

[0007] The first anchoring reinforcement member includes a vertical rod connected to the anchor cable body, a push plate, a connecting rod, a limit assembly, an insertion rod and a base, wherein the push plate is sleeved on the vertical rod, the base is fixed to an end of the vertical rod away from the push plate, the push plate is pivotally connected to the connecting rod, and the connecting rod is pivotally connected to the limit assembly and the push plate.

[0008] One end of the insertion rod extends into the base, and the other end of the insertion rod is connected to the limit assembly, so that when the push plate slides down along the outer wall of the vertical pole, the push plate can move the limit assembly away from the base through the connecting rod. The anchoring device for enhancing the anchoring force of the anchor cable in the embodiment of the present invention can prevent the limit assembly from rotating during anchoring, thereby improving the stability during anchoring.

[0009] In some embodiments, the limiting assembly includes a moving block, and the insertion rod extends into an end surface of one side of the moving block close to the base;

[0010] A limiting claw is fixedly connected to one end of the moving block away from the base, and the connecting rod is hingedly connected between the push plate and the moving block.

[0011] In some embodiments, there are multiple limit assemblies, there are multiple connecting rods and insertion rods, multiple limit assemblies are arranged at intervals in the circumferential direction of the base, and multiple connecting rods and insertion rods correspond one-to-one to the limit assemblies, and the base is provided with multiple rod grooves corresponding one-to-one to the insertion rods, and one end of the insertion rod extends into the rod groove.

[0012] In some embodiments, the first anchoring reinforcement also includes a support spring arranged on the outer wall of the vertical pole, and the top and bottom ends of the support spring are respectively fixedly connected to the bottom end of the push plate and the top end of the base.

[0013] In some embodiments, the first anchoring reinforcement further comprises at least one self-locking component, wherein the self-locking component comprises a locking block and a positioning rod.

[0014] The push plate is provided with a sliding cavity, a sliding groove is provided inside the push plate located on one side of the sliding cavity, the sliding groove is communicated with the sliding cavity, a locking block is provided on the sliding sleeve inside the sliding cavity, a positioning rod is fixedly connected to one end of the locking block, a chamfer is provided on the other end of the locking block, and the locking block is slidably abutted against the outer wall of the vertical rod.

[0015] In some embodiments, the self-locking assembly also includes a return spring, the positioning rod extends into the interior of the slide groove and is slidably connected thereto, a return spring is sleeved on the outside of the positioning rod, and both ends of the return spring are respectively fixed to the locking block and the end of the slide cavity.

[0016] In some embodiments, at least one group of lock holes is provided on the outer wall of the vertical pole, the number of the lock holes is consistent with the number of locking blocks and corresponds one to one, and each group of lock holes is vertically and equidistantly opened on the outer wall of the vertical pole.

[0017] In some embodiments, the anchoring device for enhancing the anchoring force of the anchor cable also includes a second anchoring reinforcement connected to the end of the first anchoring reinforcement away from the anchor cable body, the second anchoring reinforcement includes a movable column fixed to the bottom end of the base, a conical seat is fixed to the bottom end of the movable column, a plurality of built-in grooves are opened in a circular array on the outer wall of the conical seat, a limit plug plate is slidably sleeved on the inner side of each of the built-in grooves, and a connecting spring is connected between the limit plug plate and the built-in groove.

[0018] In some embodiments, a conical frame is provided on the outside of the conical seat, and a plurality of through openings are formed through the outer wall of the conical frame, and the number of the through openings is consistent with that of the limiting plug plates and corresponds one to one.

[0019] In some embodiments, a plurality of limit blocks are fixedly connected to the inner wall of the upper port of the conical frame, a plurality of limit grooves are opened on the side wall of the movable column, and the limit blocks are slidably fitted and connected to the limit grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the assembly of an anchoring device for enhancing the anchoring force of an anchor cable according to an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of an anchoring device for enhancing the anchoring force of an anchor cable according to an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 Enlarged structural diagram at A in the middle.

[0023] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a push plate according to an embodiment of the present invention.

[0024] Figure 5 yes Figure 4 Enlarged structural diagram of point B in the middle

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of a tapered frame according to an embodiment of the present invention.

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the cone seat according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Anchor cable body 1,

[0029] Reserve drilling hole 2,

[0030] First anchoring reinforcement member 3, vertical rod 31, push plate 32, connecting rod 33, base 34, rod groove 341, limiting assembly 35, moving block 351, limiting claw 352, inserting rod 353, self-locking assembly 36, sliding cavity 361, sliding groove 362, positioning rod 363, return spring 364, locking hole 365, locking block 366, supporting spring 37,

[0031] The second anchoring reinforcement member 4 , the movable column 41 , the limiting groove 42 , the limiting block 43 , the conical frame 44 , the through opening 45 , the limiting plug plate 46 , the conical seat 47 , the built-in groove 48 , the connecting spring 49 , and the slope 5 . DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] The anchoring device for enhancing the anchoring force of the anchor cable according to the embodiment of the present invention comprises an anchor cable body 1, wherein the anchor cable body 1 is buried inside a reserved borehole 2 opened inside a slope 5, and is characterized in that it comprises: a first anchoring reinforcement member 3 arranged at the bottom of the anchor cable body 1,

[0034] The first anchoring reinforcement member 3 includes a vertical rod 31 connected to the anchor cable body 1, a push plate 32, a connecting rod 33, a limit assembly 35, an insertion rod 353 and a base 34. The push plate 32 is sleeved on the vertical rod 31, and the base 34 is fixed to the end of the vertical rod 31 away from the push plate 32. The push plate 32 is pivotally connected to the connecting rod 33, and the connecting rod 33 is pivotally connected to the limit assembly 35 and the push plate 32.

[0035] One end of the rod 353 extends into the base 34, and the other end of the rod 353 is connected to the limit assembly 35, so that when the push plate 32 slides down along the outer wall of the vertical pole 31, the push plate 32 can move the limit assembly 35 in a direction away from the base 34 through the connecting rod 33. The anchoring device for enhancing the anchoring force of the anchor cable according to the embodiment of the present invention can prevent the limit assembly 35 from rotating relative to the anchoring device during anchoring, that is, prevent the limit assembly 35 from rotating relative to the vertical pole 31 or the base 34 during anchoring, thereby improving the stability during anchoring.

[0036] Specifically, the upper end of the link rod 33 is pivotally connected to the push plate 32, the lower end of the link rod 33 is pivotally connected to the limit assembly 35, and the push plate 32 is arranged parallel to the base 34.

[0037] The upper end of the vertical rod 31 is connected to the anchor cable body 1, the push plate 32 is arranged at the upper end of the vertical rod 32, and the lower part of the vertical rod 31 is provided with a fixedly connected base 34, the insertion rod 353 extends into the base 34 and is movable relative to the base 34, or the insertion rod 353 extends into the base 34 and is connected to the base 34, and the insertion rod 353 is movable relative to the base 34, so that when the push plate 32 moves downward, the connecting rod 33 pushes the limiting assembly to move in a direction away from the base 34.

[0038] When the anchor cable body is prestressed, the push plate 32 moves downward, and the link rod 33 pushes the limit assembly to move away from the base 34. Then the limit assembly 35 is gradually moved away from the vertical pole 31 and the base 34 to form a shape similar to an expansion screw. Therefore, the limit assembly 35 will not rotate relative to the vertical pole and the anchor cable body 1, avoiding unnecessary damage to the rock mass or surrounding rock. It also avoids the formation of a cavity between the anchor device and the drill hole or slurry after the limit assembly 35 rotates.

[0039] The anchoring device for enhancing the anchoring force of the anchor cable in an embodiment of the present invention is provided with a push plate 32. When the prestress of the anchor cable is applied, the push plate 32 moves downward relative to the vertical rod 31 under the action of the rock mass or surrounding rock, and the connecting rod 33 pushes the limiting assembly 35 to move away from the base 34. The inserted rod 353 can prevent the limiting assembly 35 from rotating during anchoring, thereby improving the stability during anchoring.

[0040] In some embodiments, the limiting assembly 35 includes a moving block 351, and the insertion rod 353 extends into a side end surface of the moving block 351 close to the base 34;

[0041] The limiting claw 352 is fixed to one end of the moving block 351 away from the base 34 , and the connecting rod 33 is hingedly connected between the pushing plate 32 and the moving block 351 .

[0042] Specifically, when the limit assembly 35 moves away from the base 34, the limit claw 352 extends into the rock mass or surrounding rock. During the downward movement of the push plate 32, the push plate 32 can push the connecting rod 33, and the connecting rod 33 pushes the moving block 351, so that the moving block 351 gradually moves away from the base 34, and the insert rod 353 slides outward inside the rod groove 341, and then continues to push the push plate 32 downward. After the grouting equipment performs cement grouting into the inside of the reserved borehole 2, the gripping force formed between the limit claw 352 and the cement slurry inside the reserved borehole 2 can also further enhance the anchoring force of the anchor cable.

[0043] Furthermore, there are multiple limit assemblies 35, multiple connecting rods 33 and inserting rods 353, multiple limit assemblies 35 are arranged at intervals in the circumferential direction of the base 34, and multiple connecting rods 33 and inserting rods 353 correspond to the limit assemblies 35 one by one, and the base 34 is provided with multiple rod grooves 341 corresponding to the inserting rods 353 one by one, and one end of the inserting rod 353 extends into the rod groove 341. The limit assemblies 35 are arranged at intervals in the circumferential direction of the base 34, or arranged in an array. In this way, the contact area between the limit assemblies and the surrounding rock or rock mass is increased, and the stability of the anchoring is improved.

[0044] Furthermore, the first anchoring reinforcement member 3 also includes a support spring 37 disposed on the outer wall of the vertical rod 31, and the top and bottom ends of the support spring 37 are respectively fixed to the bottom end of the push plate 32 and the top end of the base 34. This prevents the limit assembly 35 from moving away from the base 34 when no pre-tightening force is applied, thereby improving the stability of use.

[0045] In some embodiments, the first anchoring reinforcement member 3 further includes at least one self-locking component 36, and the self-locking component 36 includes a locking block 366 and a positioning rod 363.

[0046] The push plate 32 is provided with a sliding cavity 361, and a sliding groove 362 is provided inside the push plate 32 located on one side of the sliding cavity 361. The sliding groove 362 is communicated with the sliding cavity 361, and a locking block 366 is slidingly sleeved inside the sliding cavity 361. A positioning rod 363 is fixedly connected to one end of the locking block 366, and a chamfer is provided at the other end of the locking block 366. The locking block 366 slides and abuts against the outer wall of the vertical rod 31.

[0047] Specifically, the lock assembly 36 is used to fix the relative position of the push plate 32 and the vertical rod 31 after pre-tightening. The self-locking assembly 36 includes a sliding cavity 361 opened inside the push plate 32, a sliding groove 362 is opened inside the push plate 32 located on one side of the sliding cavity 361, and the sliding groove 362 is connected with the sliding cavity 361. A locking block 366 is slidingly sleeved inside the sliding cavity 361, and a positioning rod 363 is fixedly connected to one end of the locking block 366, and a chamfer is opened at the other end of the locking block 366, and the locking block 366 is slidably abutted against the outer wall of the vertical rod 31. The positioning rod 363 extends into the sliding groove 362 and is slidably connected thereto, and a return spring 364 is sleeved outside the positioning rod 363, and the two ends of the return spring 364 are respectively fixed to the locking block 366 and the end of the sliding cavity 361. At least one group of locking holes 365 is provided on the outer wall of the vertical pole 31. The number of locking holes 365 is consistent with the number of locking blocks 366 and corresponds to each other. Each group of locking holes 365 is vertically and equidistantly opened on the outer wall of the vertical pole 31. At least one group of locking holes 365 is provided on the outer wall of the vertical pole 31. The number of locking holes 365 is consistent with the number of locking blocks 366 and corresponds to each other. Each group of locking holes 365 is vertically and equidistantly opened on the outer wall of the vertical pole 31. By providing the locking holes 365, it is convenient to limit the push plate 32 when the preload force is different or the push plate 32 moves to different positions of the vertical pole 31, so as to prevent the push plate 32 from moving upward relative to the vertical pole 31.

[0048] Specifically, when the push plate 32 is pushed down, the thrust overcomes the elastic force of the support spring 37, so that the push plate 32 slides down along the outer wall of the vertical rod 31, compressing the support spring 37. During this process, the locking block 366 slides along the outer wall of the vertical rod 31, so that when the locking block 366 slides to the locking hole 365, the locking block 366 is pushed out by the return spring 364, so that the locking block 366 extends into the locking hole 365. In the process of the push plate 32 moving down, the connecting rod 33 can be pushed, and the connecting rod 33 pushes the moving block 351, so that the moving block 351 gradually moves away from the base 34, and the insertion rod 353 slides outward from the rod groove 341. The push plate 32 is continuously pushed downward, so that the locking block 366 is inserted into the locking hole 365 located at the lower side, until the limiting claw 352 fixed on the outer wall of the moving block 351 contacts the side wall of the reserved borehole 2 and forms a stable friction with the side wall of the reserved borehole 2, thereby effectively enhancing the anchoring force of the anchor cable. After the grouting equipment performs cement grouting into the inside of the reserved borehole 2, the gripping force formed between the limiting claw 352 and the cement slurry inside the reserved borehole 2 can also further enhance the anchoring force of the anchor cable.

[0049] The anchoring device for enhancing the anchoring force of the anchor cable of the embodiment of the present invention, after the limit plug plate 46 extends into the inner cavity of the reserved borehole 2, continues to push the push plate 32 downward, so that the push plate 32 slides down along the outer wall of the vertical rod 31, and in the process of the push plate 32 moving downward, the connecting rod 33 can be pushed, and the connecting rod 33 pushes the moving block 351, so that the moving block 351 gradually moves away from the base 34, and the plug rod 353 slides outward inside the rod groove 341. The push plate 32 is continuously pushed downward until the limit claw 352 fixed on the outer wall of the moving block 351 contacts the side wall of the reserved borehole 2 and forms a stable friction with the side wall of the reserved borehole 2. After the cement grouting work is completed, the friction formed between the limit claw 352 and the side wall of the reserved borehole 2 and the gripping force formed between the limit claw 352 and the cement slurry inside the reserved borehole 2 can further enhance the anchoring force of the anchor cable.

[0050] In some embodiments, the anchoring device for enhancing the anchoring force of the anchor cable also includes a second anchoring reinforcement 4 connected to the end of the first anchoring reinforcement 3 away from the anchor cable body 1, and the second anchoring reinforcement 4 includes a movable column 41 fixed to the bottom end of the base 34, and a conical seat 47 is fixed to the bottom end of the movable column 41. A plurality of built-in grooves 48 are opened in a circular array on the outer wall of the conical seat 47, and a limit plate 46 is slidably sleeved on the inner side of each built-in groove 48, and a connecting spring 49 is connected between the limit plate 46 and the built-in groove 48.

[0051] Specifically, the second anchoring reinforcement 4 includes a movable column 41 fixed to the bottom end of the base 34, a cone seat 47 is fixed to the bottom end of the movable column 41, and a plurality of built-in grooves 48 are provided in a circular array on the outer wall of the cone seat 47, and a limit plate 46 is slidably sleeved on the inner side of each built-in groove 48, and a connecting spring 49 is connected between the limit plate 46 and the built-in groove 48. Furthermore, after extending into the borehole 2, the stability of the connection between the borehole and the anchoring device can be increased by setting the limit plate 46. At the same time, due to the setting of the spring 49, when the anchor cable is installed, the connecting spring 49 always applies force to the limit plate 46 to keep the plate away from the cone seat 47 so as to extend into the borehole, which can improve the stability of the connection between the anchoring device and the surrounding rock or rock mass, that is, increase the stability of the connection between the borehole and the anchoring device.

[0052] The anchoring device for enhancing the anchoring force of the anchor cable of the embodiment of the present invention is provided with a second anchoring reinforcement member 4, a connecting spring 49 of the second anchoring reinforcement member 4 and a limiting plug plate 46. When the anchor cable is installed, the connecting spring 49 always applies force to the limiting plug plate 46 to make the plug plate move away from the cone seat 47 so as to extend into the borehole, thereby increasing the stability of the connection between the borehole and the anchoring device.

[0053] Furthermore, a conical frame 44 is provided outside the conical seat 47, and a plurality of through openings 45 are provided through the outer wall of the conical frame 44, and the number of through openings 45 is the same as and one-to-one corresponds to the limit plug plate 46. A plurality of limit blocks 43 are fixedly connected to the inner wall of the upper end of the conical frame 44, and a plurality of limit grooves 42 are provided on the side wall of the movable column 41, and the limit blocks 43 are slidably fitted and connected with the limit grooves 42.

[0054] That is, when the push plate 32 is pushed down, the bottom end of the second reinforcement member 4 contacts the end of the reserved drill hole 2. When the push plate 32 is pushed down continuously, the movable column 41 will slide into the inner side of the conical frame 44, and the limit plug 46 will slide along the inner wall of the conical frame 44. With the cooperation of the limit groove 42 and the limit block 43, the movable column 41 can slide smoothly and accurately until the limit plug 46 slides to the through opening 45. At this time, the limit plug 46 loses the contact and limit of the inner wall of the conical frame 44, and the connecting rod 41 which was originally in a compressed state The connecting spring 49 pushes the limit plug plate 46 outward, so that the limit plug plate 46 slides through the inside of the through opening 45 and extends into the inner cavity of the reserved borehole 2. At this time, the bottom end of the cone seat 47 just abuts against the bottom of the cone frame 44, and extends to the limit plug plate 46 in the inner cavity of the reserved borehole 2. After the cement grouting work on the inner side of the reserved borehole 2 is completed, a stable gripping force is formed between the limit plug plate 46 and the cement slurry. When the anchor cable body 1 is pulled, the connection strength between the limit plug plate 46 and the cement slurry can greatly enhance the anchoring force of the anchor cable.

[0055] The anchoring device for enhancing the anchoring force of the anchor cable according to the embodiment of the present invention comprises an anchor cable body 1 buried inside a reserved borehole 2 opened inside a slope 5, and an anchoring device is arranged at one end of the anchor cable body 1 located inside the reserved borehole 2, wherein the anchoring device comprises a first reinforcement member and a second reinforcement member, and before pouring cement into the reserved borehole 2, the push plate 32 is pushed down so that the bottom end of the second reinforcement member contacts the end of the reserved borehole 2, and when the push plate 32 is continuously pushed down, the movable column 41 moves toward the cone. The limit plug plate 46 slides along the inner wall of the conical frame 44 until the limit plug plate 46 slides to the through opening 45. The connecting spring 49, which was originally in a compressed state, pushes the limit plug plate 46 outward, so that the limit plug plate 46 slides through the through opening 45 and extends into the inner cavity of the reserved borehole 2. After the cement grouting work inside the reserved borehole 2 is completed, a stable grip is formed between the limit plug plate 46 and the cement slurry, thereby being able to well enhance the anchoring force of the anchor cable.

[0056] The following is a description of the overall structure of the anchoring device for enhancing the anchoring force of the anchor cable according to the embodiment of the present invention.

[0057] See also Figures 1 to 5As shown, the anchoring device for enhancing the anchoring force of the anchor cable in an embodiment of the present invention includes an anchor cable body 1, which is buried inside a reserved drill hole 2 opened inside the slope 5, and an anchoring device is arranged at one end of the anchor cable body 1 located inside the reserved drill hole 2, and the anchoring device includes a first reinforcement member 3 and a second reinforcement member 4.

[0058] Specifically, the first reinforcement member 3 includes a base 34, a vertical rod 31 is fixedly connected to the top of the base 34, a push plate 32 is arranged above the base 34, the push plate 32 is arranged parallel to the base 34, the vertical rod 31 slides through the inside of the push plate 32, a plurality of limit assemblies 35 are arranged on the base 34, and the plurality of limit assemblies 35 are arranged in a circular array outside the base 34, and a connecting rod 33 is connected between each limit assemblies 35 and the push plate 32, and when the push plate 32 slides down along the outer wall of the vertical rod 31, the limit assemblies 35 can be moved away from the base 34 through the connecting rod 33. Among them, the limit assemblies 35 include a moving block 351, an end of the moving block 351 close to the base 34 is fixedly connected to an insertion rod 353, an end of the moving block 351 away from the base 34 is fixedly connected to a limit claw 352, and the connecting rod 33 is hingedly connected between the push plate 32 and the moving block 351.

[0059] Furthermore, a plurality of rod grooves 341 are provided inside the base 34, and the number of the plurality of rod grooves 341 is the same as and corresponds to the insertion rods 353, and the insertion rods 353 extend into and are slidably connected to the rod grooves 341. A support spring 37 is sleeved on the outer wall of the vertical rod 31, and the top and bottom ends of the support spring 37 are fixedly connected to the bottom end of the push plate 32 and the top end of the base 34 respectively.

[0060] Furthermore, the first reinforcement member 3 further includes at least one self-locking component 36, which is used to fix the relative position of the push plate 32 and the vertical rod 31. The self-locking component 36 includes a sliding cavity 361 opened inside the push plate 32, a sliding groove 362 is opened inside the push plate 32 located on one side of the sliding cavity 361, and the sliding groove 362 is connected with the sliding cavity 361. A locking block 366 is slidingly sleeved inside the sliding cavity 361, and a positioning rod 363 is fixedly connected to one end of the locking block 366, and a chamfer is opened at the other end of the locking block 366, and the locking block 366 is slidingly abutted against the outer wall of the vertical rod 31. The positioning rod 363 extends into the sliding groove 362 and is slidably connected thereto, and a return spring 364 is sleeved outside the positioning rod 363, and the two ends of the return spring 364 are respectively fixed to the locking block 366 and the end of the sliding cavity 361. At least one group of locking holes 365 is provided on the outer wall of the vertical pole 31 . The number of the locking holes 365 is consistent with the number of the locking blocks 366 and corresponds one to one. Each group of locking holes 365 is vertically and equidistantly opened on the outer wall of the vertical pole 31 .

[0061] In this embodiment, when the push plate 32 is pushed down, the thrust overcomes the elastic force of the support spring 37, so that the push plate 32 slides down along the outer wall of the vertical rod 31, compressing the support spring 37. During this process, the locking block 366 slides along the outer wall of the vertical rod 31, so that when the locking block 366 slides to the locking hole 365, the locking block 366 is pushed out by the return spring 364, so that the locking block 366 extends into the locking hole 365. In the process of the push plate 32 moving down, the connecting rod 33 can be pushed, and the connecting rod 33 pushes the moving block 351, so that the moving block 351 gradually moves away from the base 34, and the insertion rod 353 slides outward from the rod groove 341. The push plate 32 is continuously pushed downward, so that the locking block 366 is inserted into the locking hole 365 located at the lower side, until the limiting claw 352 fixed on the outer wall of the moving block 351 contacts the side wall of the reserved borehole 2 and forms a stable friction with the side wall of the reserved borehole 2, thereby effectively enhancing the anchoring force of the anchor cable. After the grouting equipment performs cement grouting into the inside of the reserved borehole 2, the gripping force formed between the limiting claw 352 and the cement slurry inside the reserved borehole 2 can also further enhance the anchoring force of the anchor cable.

[0062] The second reinforcement member 4 includes a movable column 41 fixed to the bottom end of the base 34, a conical seat 47 is fixed to the bottom end of the movable column 41, and a plurality of built-in grooves 48 are provided in a circular array on the outer wall of the conical seat 47. A limit plate 46 is slidably sleeved on the inner side of each built-in groove 48, and a connecting spring 49 is connected between the limit plate 46 and the built-in groove 48.

[0063] Furthermore, a conical frame 44 is provided outside the conical seat 47, and a plurality of through openings 45 are provided through the outer wall of the conical frame 44, and the number of through openings 45 is the same as and one-to-one corresponds to the limit plug plate 46. A plurality of limit blocks 43 are fixedly connected to the inner wall of the upper end of the conical frame 44, and a plurality of limit grooves 42 are provided on the side wall of the movable column 41, and the limit blocks 43 are slidably fitted and connected with the limit grooves 42.

[0064] In this embodiment, when the push plate 32 is pushed down, the bottom end of the second reinforcement member 4 contacts the end of the reserved drill hole 2. When the push plate 32 is pushed down continuously, the movable column 41 slides into the inner side of the conical frame 44, and the limiting plug plate 46 slides along the inner wall of the conical frame 44. With the cooperation of the limiting groove 42 and the limiting block 43, the movable column 41 can slide smoothly and accurately until the limiting plug plate 46 slides to the through opening 45. At this time, the limiting plug plate 46 loses the contact and limit of the inner wall of the conical frame 44, and the originally compressed state The connecting spring 49 in the state pushes the limit plug plate 46 outward, so that the limit plug plate 46 slides through the inside of the through opening 45 and extends into the inner cavity of the reserved borehole 2. At this time, the bottom end of the cone seat 47 just abuts against the bottom of the cone frame 44, and extends to the limit plug plate 46 in the inner cavity of the reserved borehole 2. After the cement grouting work on the inner side of the reserved borehole 2 is completed, a stable gripping force is formed between the limit plug plate 46 and the cement slurry. When the anchor cable body 1 is pulled, the connection strength between the limit plug plate 46 and the cement slurry can greatly enhance the anchoring force of the anchor cable.

[0065] Working principle and usage process: When working, first use the drilling equipment to open a reserved borehole 2 at an appropriate position on the slope 5, and then send the anchor body 1 together with the first reinforcement 3 and the second reinforcement 4 at the end of the anchor body 1 to the end of the reserved borehole 2. It should be noted that in the initial stage (when the anchor body 1 is sent into the inside of the reserved borehole 2), the limiting plug plate 46 is completely located on the inside of the conical frame 44, the insertion rod 353 is inside the rod groove 341, and the maximum distance between the two limiting claws 352 on the opposite side is less than the diameter of the push plate 32, ensuring that during the lowering of the anchor body 1, the first reinforcement 3 and the second reinforcement 4 will not hinder the lowering of the anchor body 1. Afterwards, a sleeve (not shown) is prepared, which is sleeved on the outside of the anchor cable body 1 and inserted into the reserved borehole 2 until the sleeve abuts against the upper end wall of the push plate 32. Afterwards, the sleeve is pushed into the reserved borehole 2 with force (the push plate 32 can also be pushed by an electric telescopic rod, an electric hydraulic device, etc., in order to push the push plate 32 toward the end of the reserved borehole 2). When the push plate 32 is pushed down, the bottom end of the second reinforcement member 4 abuts against the end of the reserved borehole 2. When the push plate 32 is continuously pushed down, the movable column 41 will slide into the inside of the conical frame 44, and the limit plug plate 46 will slide along the inner wall of the conical frame 44. With the cooperation of the block 43, the movable column 41 can slide smoothly and accurately until the limit plug plate 46 slides to the through-hole 45. At this time, the limit plug plate 46 loses the inner wall of the conical frame 44 to abut and limit, and the connecting spring 49, which was originally in a compressed state, pushes the limit plug plate 46 outward, so that the limit plug plate 46 slides through the through-hole 45 and extends into the inner cavity of the reserved borehole 2. At this time, the bottom end of the cone seat 47 just abuts against the bottom of the conical frame 44 and extends to the limit plug plate 46 in the inner cavity of the reserved borehole 2. After the cement grouting work on the inner side of the reserved borehole 2 is completed, a stable grip is formed between the limit plug plate 46 and the cement slurry, thereby being able to well enhance the anchoring force of the anchor cable.

[0066] When the push plate 32 is pushed down continuously, the thrust overcomes the elastic force of the support spring 37, so that the push plate 32 slides down along the outer wall of the vertical rod 31, compressing the support spring 37. In this process, the locking block 366 slides along the outer wall of the vertical rod 31, so that when the locking block 366 slides to the locking hole 365, the locking block 366 is pushed out by the reset spring 364, so that the locking block 366 extends into the locking hole 365. In the process of the push plate 32 moving down, the connecting rod 33 can be pushed, and the connecting rod 33 pushes the moving block 351, so that the moving block 351 gradually moves away from the base 34, and the insertion rod 353 slides outward in the rod groove 341. The push plate 32 is continuously pushed down, so that the locking block 366 is inserted into the locking hole 365 located at the lower side, until the limiting claw 352 fixed on the outer wall of the moving block 351 contacts the side wall of the reserved drilling hole 2 and forms a stable friction with the side wall of the reserved drilling hole 2. Afterwards, cement grouting is performed inside the reserved borehole 2 by means of a grouting device. The friction formed between the limit claw 352 and the side wall of the reserved borehole 2 and the gripping force formed between the limit claw 352 and the cement slurry inside the reserved borehole 2 can further enhance the anchoring force of the anchor cable.

[0067] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An anchoring device for enhancing the anchoring force of an anchor cable, comprising an anchor cable body, wherein the anchor cable body is buried inside a reserved borehole opened inside a slope, and is characterized in that: include: A first anchoring reinforcement member disposed at the bottom of the anchor cable body, The first anchoring reinforcement member includes a vertical rod connected to the anchor cable body, a push plate, a connecting rod, a limit assembly, an insertion rod and a base, wherein the push plate is sleeved on the vertical rod, the base is fixed to an end of the vertical rod away from the push plate, the push plate is pivotally connected to the connecting rod, and the connecting rod is pivotally connected to the limit assembly and the push plate. One end of the insertion rod extends into the base, and the other end of the insertion rod is connected to the limit assembly, so that when the push plate slides down along the outer wall of the vertical rod, the push plate can move the limit assembly in a direction away from the base through the connecting rod.

2. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 1, characterized in that: The limiting assembly includes a moving block, and the insertion rod extends into an end surface of one side of the moving block close to the base; A limiting claw is fixedly connected to one end of the moving block away from the base, and the connecting rod is hingedly connected between the push plate and the moving block.

3. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 1, characterized in that: There are multiple limit assemblies, multiple connecting rods and insert rods, multiple limit assemblies are arranged at intervals in the circumferential direction of the base, and multiple connecting rods and insert rods correspond to the limit assemblies one by one. The base is provided with multiple rod grooves corresponding to the insert rods one by one, and one end of the insert rod extends into the rod groove.

4. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 3, characterized in that: The first anchoring reinforcement also includes a support spring arranged on the outer wall of the vertical rod, and the top and bottom ends of the support spring are respectively fixedly connected to the bottom end of the push plate and the top end of the base.

5. The anchoring device for enhancing the anchoring force of an anchor cable according to claim 1, characterized in that: The first anchoring reinforcement member further comprises at least one self-locking component, wherein the self-locking component comprises a locking block and a positioning rod. The push plate is provided with a sliding cavity, a sliding groove is provided inside the push plate located on one side of the sliding cavity, the sliding groove is communicated with the sliding cavity, a locking block is provided on the sliding sleeve inside the sliding cavity, a positioning rod is fixedly connected to one end of the locking block, a chamfer is provided on the other end of the locking block, and the locking block is slidably abutted against the outer wall of the vertical rod.

6. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 5, characterized in that: The self-locking component also includes a reset spring. The positioning rod extends into the interior of the slide groove and is slidably connected thereto. A reset spring is sleeved on the outer side of the positioning rod. Both ends of the reset spring are respectively fixed to the locking block and the end of the slide cavity.

7. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 6, characterized in that: At least one group of lock holes is arranged on the outer wall of the vertical pole, the number of the lock holes is consistent with the number of the locking blocks and corresponds one to one, and each group of lock holes is vertically and equidistantly opened on the outer wall of the vertical pole.

8. The anchoring device for enhancing the anchoring force of the anchor cable according to any one of claims 1 to 7, characterized in that: It also includes a second anchoring reinforcement member connected to the first anchoring reinforcement member at one end away from the anchor cable body, the second anchoring reinforcement member includes a movable column fixed to the bottom end of the base, a conical seat is fixed to the bottom end of the movable column, a plurality of built-in grooves are opened in a circular array on the outer wall of the conical seat, a limit plug plate is slidably sleeved on the inner side of each of the built-in grooves, and a connecting spring is connected between the limit plug plate and the built-in groove.

9. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 8, characterized in that: A conical frame is arranged outside the conical seat, and a plurality of through openings are penetrated through the outer wall of the conical frame. The number of the through openings is consistent with that of the limiting plug plates and they correspond one to one.

10. The anchoring device for enhancing the anchoring force of the anchor cable according to claim 9, characterized in that: A plurality of limit blocks are fixedly connected to the inner wall of the upper port of the conical frame, a plurality of limit grooves are opened on the side wall of the movable column, and the limit blocks are slidably fitted and connected with the limit grooves.

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