Side slope protection anchor rod

Abstract

The utility model discloses a side slope protection anchor rod which comprises an anchor head, the rod body is detachably connected with the anchor head, so that the rod body can move relative to the anchor head in the axial direction of the rod body; the sliding block is sleeved on the rod body and can move relative to the rod body; the multiple vertical parts are arranged in the circumferential direction of the rod body, and the two ends of each vertical part are connected with the anchor head and the sliding block through rotating structures correspondingly, so that when the sliding block moves in the axial direction of the rod body, the multiple vertical parts move in the direction perpendicular to the axial direction of the rod body, and expanded areas with different diameters are formed; the stopping block is arranged on the rod body, located on the side, away from the anchor head, of the sliding block and used as a stopping piece for preventing the sliding block from moving back; and the pushing piece is detachably connected with the sliding block. The slope protection anchor rod is simple in structure, convenient to operate, high in flexibility and higher in anchoring performance compared with a traditional anchor rod lattice beam and a traditional anchor cable lattice beam, the diameter of an expanded area can be adjusted according to needs, and the slope protection anchor rod can be suitable for more fractured rock strata.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a slope protection anchor rod. Background Art

[0002] The geological conditions of mountain highways are relatively complex, and landslides are prone to occur during the construction of high slopes. At present, slopes with poor rock quality are mostly protected by anchor frame beams or anchor cable lattice beams. The anchoring performance of anchor frame beam protection is weak, and its applicability to severely weathered slopes is poor; anchor cable lattice beam protection is to drill holes in the slope, install anchor cables, grout, tension, and lock to form an anchoring system, which has better anchoring performance, but has a long construction period and high cost.

[0003] In the prior art, the patent with publication number CN 215759003 U discloses an anti-floating anchor pile, including a first anchor hole and a second anchor hole opened on the rock mass, wherein an anchor system is arranged in the first anchor hole and the second anchor hole; the anchor system includes threaded steel bars, a centering bracket and a variable-section steel cage; the construction method of the anti-floating anchor pile is as follows: on the rock mass, the hole position is determined according to the requirements, a mark is made, and a jet pile driver is placed; soil is taken to form the first anchor hole and the second anchor hole; after the threaded steel bars and the variable-section steel cage are lowered into place, the limit pin is pulled out to open the variable-section steel cage, and then high-pressure grouting is performed. The pull-out resistance of this type of anchor is 3-5 times higher than that of ordinary anchors, but the diameter of the steel cage cannot be flexibly adjusted according to needs.

[0004] In view of this, it is necessary to design a slope protection anchor rod to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a slope protection anchor rod which can adjust and enlarge the head diameter according to construction requirements to enhance the anchoring performance of the anchor rod.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A slope protection anchor rod, comprising:

[0008] Anchor head, used for plugging and fixing in the soil;

[0009] A rod body, detachably connected to the anchor head, so that the rod body can move relative to the anchor head along its axial direction;

[0010] A slider, sleeved on the rod body and movable relative to the rod body;

[0011] A vertical member, wherein a plurality of vertical members are arranged along the circumference of the rod body, and both ends of the vertical members are respectively connected to the anchor head and the slider through a rotating structure, so that when the slider moves along the axial direction of the rod body, the plurality of vertical members move perpendicular to the axial direction of the rod body to form expansion areas of different diameters;

[0012] A blocking block is arranged on the rod body and is located on the side of the slider away from the anchor head, so that when the rod body moves toward the anchor head until the blocking block abuts against the slider, the blocking block serves as a blocking member to prevent the slider from moving back;

[0013] The pushing member is detachably connected to the slider and is used to push the slider to move.

[0014] As a further improvement of the utility model, the anchor head is connected to the rod body through threads.

[0015] As a further improvement of the present invention, the sliding block is a first sliding block sleeved on the rod body, and the inner diameter of the first sliding block is larger than the diameter of the rod body, so that the first sliding block can move along the rod body.

[0016] As a further improvement of the present invention, the rotating structure comprises a connecting rod, one end of which is connected to the vertical member via a rotating pair, and the other end of which is connected to the slider or the anchor head via a rotating pair.

[0017] As a further improvement of the utility model, a second sliding block is arranged on the anchor head, and the inner diameter of the second sliding block is larger than the diameter of the anchor head.

[0018] As a further improvement of the utility model, the end of the connecting rod away from the vertical rod is connected to the second sliding block through a rotating pair.

[0019] As a further improvement of the present invention, the second sliding block is fixed on the anchor head through a fixing assembly.

[0020] As a further improvement of the present invention, the blocking member is a first fixing ring arranged on the rod body, and the outer diameter of the first fixing ring is larger than the inner diameter of the slider.

[0021] As a further improvement of the utility model, scale lines are further arranged on the rod body along its axial direction.

[0022] As a further improvement of the utility model, the pushing member is a hollow sleeve sleeved on the rod body.

[0023] The beneficial effects of the utility model are:

[0024] 1. The utility model utilizes a pushing member to push the slider to move toward the anchor head to reduce the vertical distance between the slider and the anchor head, so that a plurality of vertical members connected to the slider and the anchor head at both ends through a rotating structure can simultaneously move in a direction perpendicular to the axial direction of the rod body and away from the rod body to form expanded areas of different diameters; at the same time, by utilizing a detachable connection between the rod body and the anchor head, when the rod body is moved toward the anchor head until the blocking block abuts against the slider, the fixed block can be used to limit the slider, so that the size of the expanded area can be adjusted as needed by adjusting the movement of the slider and the rod body, thereby increasing the anchoring performance of the anchor rod.

[0025] 2. The slope protection anchor rod of the utility model has a simple structure and is easy to operate. The diameter of the expanded area can be adjusted according to needs, and it has strong flexibility. Compared with traditional anchor rod lattice beams and anchor cable lattice beams, it has stronger anchoring performance and can be applied to more broken rock formations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the slope protection anchor rod of the utility model.

[0027] Figure 2 This is a schematic diagram of the slope protection anchor rod in a retracted state.

[0028] Figure 3 This is a partial structural diagram of the slope protection anchor rod.

[0029] Figure 4 This is a schematic diagram of the structure of the slider.

[0030] Figure 5 It is a schematic diagram of the structure of the hollow sleeve.

[0031] Figure 6 It is a schematic diagram of the structure of the fixed ring.

[0032] Figure 7 Schematic diagram of the use of slope protection anchor rods.

[0033] Reference numerals

[0034] 10. Anchor head; 11. Nut; 20. Rod body; 31. First sliding block; 311. Hole; 32. Second sliding block; 33. Connecting rod; 40. Vertical member; 51. First fixing ring; 52. Second fixing ring; 53. Bolt; 60. Hollow sleeve; 61. Vertical rod. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0037] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] See also Figure 1 As shown, the utility model provides a slope protection anchor rod, comprising:

[0039] An anchor head 10, used for being inserted and fixed in the soil;

[0040] The rod body 20 is detachably connected to the anchor head 10, so that the rod body 20 can move relative to the anchor head 10 along its axial direction;

[0041] A slider, sleeved on the rod body 20 and movable relative to the rod body 20;

[0042] A vertical member 40, wherein a plurality of vertical members 40 are arranged along the circumference of the rod body 20, and both ends of the vertical member 40 are respectively connected to the anchor head 10 and the slider through a rotating structure, so that when the slider moves along the axial direction of the rod body 20, the plurality of vertical members 40 move perpendicular to the axial direction of the rod body 20 to form expansion areas of different diameters;

[0043] The blocking block is arranged on the rod body 20 and is located on the side of the slider away from the anchor head 10, so that when the rod body 20 moves toward the anchor head 10 until the blocking block abuts against the slider, the blocking block serves as a blocking member to prevent the slider from moving back;

[0044] The pushing member is detachably connected to the slider and is used to push the slider to move.

[0045] Specifically, Figure 1 and Figure 3 As shown, the anchor head 10 is connected to the rod body 20 by threads; in this embodiment, one end of the anchor head 10 is a conical structure that is easy to insert into the soil, and the other end is provided with a cavity with an open top, and a nut 11 is provided at the top of the cavity, and one end of the rod body 20 is correspondingly provided with an external thread matching the nut 11. By inserting the rod body 20 into the cavity through the nut 11, the connection between the rod body 20 and the anchor head 10 can be achieved, and by rotating the rod body 20, the rod body 20 can be moved along its axial direction toward or away from the anchor head 10.

[0046] Specifically, the slider is a first sliding block 31 sleeved on the rod body 20 , and the inner diameter of the first sliding block 31 is larger than the diameter of the rod body 20 , so that the first sliding block 31 can move along the rod body 20 .

[0047] Specifically, the blocking member is a first fixing ring 51 fixedly disposed on the rod body 20 , and the outer diameter of the first fixing ring 51 is larger than the inner diameter of the first sliding block 31 , so that the first fixing ring 51 can be used to limit the first sliding block 31 .

[0048] Specifically, the pusher is a hollow sleeve 60 sleeved on the rod body 20; in this embodiment, the outer diameter of the hollow sleeve 60 is larger than the outer diameter of the fixing ring, and a plurality of vertical rods 61 ( Figure 5 ), the first sliding block 31 is correspondingly provided with a plurality of holes 311 ( Figure 4 ). By inserting the vertical rod 61 into the corresponding hole 311, the connection between the hollow sleeve 60 and the first sliding block 31 can be achieved, and then by applying a force on the hollow sleeve 60, the hollow sleeve 60 can be pushed to move toward the anchor head 10, so as to drive the first sliding block 31 to move toward the anchor head 10, so that the vertical member 40 moves in a direction perpendicular to the axial direction of the rod body 20 and away from the rod body 20. Since the outer diameter of the hollow sleeve 60 is larger than the outer diameter of the fixing ring, the existence of the fixing ring does not limit the movement of the vertical rod 61 arranged on the outer wall of the hollow sleeve 60 in the direction close to the anchor head 10.

[0049] The detachable connection design between the hollow sleeve 60 and the first sliding block 31 also facilitates the repeated use of the hollow sleeve 60 and saves costs.

[0050] Specifically, scale lines are provided on the rod body 20 along its axial direction. By observing the moving distance of the hollow sleeve 60 relative to the rod body 20, the specific diameter of the expanded area can be calculated, thereby realizing visualization of the diameter of the expanded area, and facilitating construction personnel to quickly adjust the diameter range of the expanded area formed by a number of vertical rods before performing subsequent grouting operations, thereby improving construction efficiency. In addition, during actual construction, the range of the expanded area can be adjusted again according to the on-site conditions to meet construction needs.

[0051] Specifically, the rotating structure includes a connecting rod 33 , one end of which is connected to the vertical member 40 through a rotating pair, and the other end of which is connected to the first sliding block 31 or the anchor head 10 through a rotating pair.

[0052] Specifically, a second sliding block 32 is provided on the anchor head 10, and the inner diameter of the second sliding block 32 is larger than the diameter of the anchor head 10, so that the second sliding block 32 can move along the anchor rod to adjust its position, thereby facilitating adjustment of the vertical distance between the end of the vertical rod and the tip of the conical structure according to construction needs.

[0053] The anchor head 10 is also provided with a fixing assembly for keeping the second sliding block 32 relatively fixed to the anchor head 10. Exemplarily, the fixing assembly includes second fixing rings 52 respectively arranged on both sides of the second sliding block 32 and sleeved on the anchor head 10. The outer diameter of the second fixing ring 52 is greater than the inner diameter of the second sliding block 32.

[0054] like Figure 6 As shown, in this embodiment, a plurality of threaded holes are circumferentially spaced on the fixing ring, and the fixing ring is fixed to the anchor head 10 or the rod body 20 by passing the bolts 53 through the threaded holes until the bolts 53 abut against the anchor head 10 or the rod body 20.

[0055] The second sliding block 32 is limited by the two second fixing rings 52 , so that the second sliding block 32 can be fixed relative to the anchor head 10 .

[0056] Specifically, one end of the connecting rod 33 away from the vertical rod is connected to the second sliding block 32 through a rotating pair.

[0057] Specifically, in this embodiment, the vertical member 40 is a steel bar; in other embodiments, it can also be set as a plate.

[0058] The working principle of the slope protection anchor rod of the utility model is described below:

[0059] The anchor drill is used to drill holes on the excavated slope. After drilling to the designed depth, the hole is expanded by replacing the hole expansion drill bit, and the slope protection anchor rod is placed in the drilled hole; in the initial state, the plurality of vertical members 40 are in a retracted state close to the rod body 20 ( Figure 2 ), by pushing the hollow sleeve 60, the first sliding block 31 moves toward the direction close to the anchor head 10 until the plurality of vertical members 40 open to form an enlarged area of ​​a preset diameter, wherein the diameter of the enlarged area is determined by observing the moving distance of the hollow sleeve 60 relative to the rod body 20; the rod body 20 is rotated, so that the rod body 20 moves toward the direction close to the anchor head 10 until the first fixing ring 51 abuts against the side of the first sliding block 31 away from the anchor head 10, so as to limit the first sliding block 31 and prevent the first sliding block 31 from moving back; the hollow sleeve 60 is removed, grouting is injected into the hole, and the anchor construction is completed ( Figure 7 ); Anchor construction is completed, concrete lattice beams are poured, and protective construction is completed.

[0060] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A slope protection anchor rod, characterized in that: include: Anchor head, used for plugging and fixing in the soil; A rod body, detachably connected to the anchor head, so that the rod body can move relative to the anchor head along its axial direction; A slider, sleeved on the rod body and movable relative to the rod body; A vertical member, wherein a plurality of vertical members are arranged along the circumference of the rod body, and both ends of the vertical members are respectively connected to the anchor head and the slider through a rotating structure, so that when the slider moves along the axial direction of the rod body, the plurality of vertical members move perpendicular to the axial direction of the rod body to form expansion areas of different diameters; A blocking block is arranged on the rod body and is located on the side of the slider away from the anchor head, so that when the rod body moves toward the anchor head until the blocking block abuts against the slider, the blocking block serves as a blocking member to prevent the slider from moving back; The pushing member is detachably connected to the slider and is used to push the slider to move.

2. The slope protection anchor rod according to claim 1, characterized in that: The anchor head is connected to the rod body through threads.

3. The slope protection anchor rod according to claim 1, characterized in that: The sliding block is a first sliding block sleeved on the rod body, and the inner diameter of the first sliding block is greater than the diameter of the rod body.

4. The slope protection anchor rod according to claim 1, characterized in that: The rotating structure comprises a connecting rod, one end of which is connected to the vertical member through a rotating pair, and the other end of which is connected to a sliding block or an anchor head through a rotating pair.

5. The slope protection anchor rod according to claim 4, characterized in that: A second sliding block is arranged on the anchor head, and the inner diameter of the second sliding block is larger than the diameter of the anchor head.

6. The slope protection anchor rod according to claim 5, characterized in that: The end of the connecting rod away from the vertical rod is connected to the second sliding block through a rotating pair.

7. The slope protection anchor rod according to claim 5, characterized in that: The second sliding block is fixed on the anchor head through a fixing assembly.

8. The slope protection anchor rod according to claim 1, characterized in that: The blocking member is a first fixing ring arranged on the rod body, and the outer diameter of the first fixing ring is greater than the inner diameter of the sliding block.

9. The slope protection anchor rod according to claim 1, characterized in that: The rod body is also provided with scale lines along its axial direction.

10. The slope protection anchor rod according to claim 9, characterized in that: The pushing member is a hollow sleeve sleeved on the rod body.

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