A deformable prestressed self-adapting adjusting anchor rod wedge

Abstract

The utility model relates to the technical field of anchor rod, especially a kind of deformable prestressed self-adapting regulation anchor rod wedge, it increases the contact area of anchor rod end and rock mass, guarantee uniform stress, increase friction, increase the pullout resistance of anchor rod;Including anchor rod, wedge block component and deformation component, wedge block component is located at anchor rod top end, and deformation component is installed in anchor rod lower part.

Description

Technical Field

[0001] This utility model relates to the technical field of anchor bolts, and in particular to a deformable prestressed adaptive adjustable anchor bolt wedge. Background Technology

[0002] Anchor bolt support is currently one of the main methods for supporting rock and soil structures. It features convenient construction, good results, and time and labor savings, and is widely used in water conservancy and hydropower, transportation, underground engineering support, slope engineering, and foundation pit engineering. Prestressed anchor bolts consist of an anchor head, a bolt body, and a pad. The anchoring force generated by the anchor head applies a certain prestress to the surrounding rock, actively reinforcing it. Existing technology announcement number CN102797487A proposes an anchor bolt comprising an anchor head and an anchor bolt body. The anchor head and anchor bolt body are fixed together by a threaded connection. The anchor head consists of a nut and a washer; the nut and washer are covered with an antistatic flame-retardant sleeve; the nut and washer are an integral structure; the antistatic flame-retardant sleeve is made of polypropylene. However, its stability is poor. During use, uneven stress can easily cause the anchor bolt to shift, and it is prone to automatically detaching due to environmental factors, thus affecting its performance. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a deformable prestressed adaptive adjustable anchor wedge that increases the contact area between the end of the anchor rod and the rock mass, ensures uniform stress distribution, increases friction, and increases the pull-out resistance of the anchor rod.

[0004] This utility model discloses a deformable prestressed adaptive adjustable anchor wedge, comprising an anchor, a wedge assembly, and a deformable component. The wedge assembly is located at the top of the anchor, and the deformable component is installed at the bottom of the anchor. When the anchor is inserted into the anchor hole, the deformable component increases the contact area between the end of the anchor and the rock mass, ensuring uniform force distribution and increasing friction, which is beneficial to further increasing the pull-out resistance of the anchor. The wedge assembly can fix the anchor in the anchor hole, fixing and limiting the external mountain to prevent landslides.

[0005] Preferably, the deformable component includes an inner rod, multiple sets of anchor bolts, multiple sets of adjusting rods, multiple sets of push rods, and multiple ring plates. The anchor bolt is hollow inside, and a threaded groove is formed on the inner wall. The outer wall of the inner rod has external threads. The inner rod is located inside the anchor bolt. Multiple deformation grooves are formed on the lower outer wall of the anchor bolt. Multiple anchor bolts are movably installed in the deformation grooves. Adjusting grooves are formed at corresponding positions of the inner rod and deformation grooves. Multiple push rods are installed at the top of the adjusting grooves. Ring plates are installed at the bottom of the push rods. Adjusting rods are installed on the anchor bolts. Rotating the inner rod downwards causes the push rods to push the ring plates downwards. The adjusting rods push the anchor bolts out of the deformation grooves, increasing the contact area between the end of the anchor bolt and the rock mass, ensuring uniform force distribution, increasing friction, and further increasing the pull-out resistance of the anchor bolt.

[0006] Preferably, the wedge assembly includes an upper nut, two wedge rods, and a wedge plate. The upper nut is screwed onto the upper part of the inner rod, and wedge rods are symmetrically installed on the left and right sides of the upper nut. A wedge plate is installed at the bottom of the wedge rods. The wedge plate contacts the external mountain body, and the upper nut and wedge rods cooperate with the inner rod to fix and limit the external mountain body, thereby preventing landslides.

[0007] Preferably, it also includes a nut and a threaded protrusion. The nut is installed on the top of the anchor rod, and the threaded protrusion is installed on the outer wall of the anchor rod. Tightening the nut drives the anchor rod into the anchor hole. The threaded protrusion can increase the contact area between the anchor rod and the anchor hole, increase the friction, and prevent it from falling outward.

[0008] Preferably, it also includes multiple connecting bolts, and the wedge plate has multiple connecting holes, with the multiple connecting bolts located in the connecting holes respectively; the connecting bolts and connecting holes facilitate fixing the wedge plate to the external mountain, making installation convenient and ensuring stability.

[0009] Preferably, the outer end of the anchor is configured as an alloy cone shape; the cone shape can penetrate into the internal soil.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: when the anchor rod is inserted into the anchor hole, the deformable component can increase the contact area between the end of the anchor rod and the rock mass, ensuring uniform force distribution and increasing friction, which is conducive to further increasing the pull-out force of the anchor rod. The wedge block assembly can fix the anchor rod in the anchor hole, fix and limit the external mountain, and prevent landslides. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 3 This is a front view structural diagram of the present invention;

[0014] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0015] The following labels are used in the attached diagram: 1. Anchor bolt; 2. Nut; 3. Threaded protrusion; 4. Inner rod; 5. External thread; 6. Anchor nail; 7. Adjusting rod; 8. Push rod; 9. Ring plate; 10. Upper nut; 11. Wedge rod; 12. Wedge plate; 13. Connecting bolt. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] like Figures 1 to 4 As shown, the anchor rod 1 is hollow inside and has a threaded groove on its inner wall. The inner rod 4 has an external thread 5 on its outer wall. The inner rod 4 is located inside the anchor rod 1. Multiple deformation grooves are opened on the lower outer wall of the anchor rod 1. Multiple anchor nails 6 are movably installed in the deformation grooves. The outer end of the anchor nail 6 is set as an alloy pointed cone. The inner rod 4 has an adjustment groove at the corresponding position of the deformation groove. Multiple push rods 8 are installed on the top of the adjustment groove. A ring plate 9 is installed at the bottom of the push rod 8. An adjustment rod 7 is installed on the anchor nail 6. The upper nut 10 is screwed on the upper part of the inner rod 4. Wedge rods 11 are symmetrically installed on the left and right sides of the upper nut 10. A wedge plate 12 is installed at the bottom of the wedge rod 11. Nut 2 is installed on the top of the anchor rod 1. A threaded protrusion 3 is installed on the outer wall of the anchor rod 1. Multiple connecting holes are opened on the wedge plate 12. Multiple connecting bolts 13 are located in the connecting holes respectively.

[0018] Insert the anchor rod 1 into the anchor hole, and tighten the nut 2 to drive the anchor rod 1 into the anchor hole. The threaded protrusion 3 increases the contact area between the anchor rod 1 and the anchor hole, increasing friction and preventing it from falling outward. Rotate the inner rod 4 downward, causing the push rod 8 to push the ring plate 9 downward. The adjusting rod 7 pushes the anchor nail 6 out of the deformation groove, increasing the contact area between the end of the anchor rod and the rock mass, ensuring uniform force distribution, increasing friction, and further increasing the pull-out resistance of the anchor rod. The connecting bolt 13 and connecting hole facilitate the fixing of the wedge plate 12 to the external mountain, making installation convenient and ensuring stability. The wedge plate 12 contacts the external mountain, and the upper nut 10 and the wedge rod 11 cooperate with the inner rod 4 to fix and limit the external mountain, preventing landslides.

[0019] like Figures 1 to 4 As shown, this utility model discloses a deformable prestressed adaptive adjustable anchor wedge. During operation, turning the nut 2 drives the anchor 1 into the anchor hole. The threaded protrusion 3 increases the contact area between the anchor 1 and the anchor hole. Rotating the inner rod 4 moves it downward, causing the push rod 8 to push the ring plate 9 downward. The adjusting rod 7 pushes the anchor nail 6 out of the deformation groove, increasing the contact area between the end of the anchor and the rock mass, ensuring uniform force distribution, and increasing friction. The wedge plate 12 is fixed to the external mountain through the connecting bolt 13 and the connecting hole. The wedge plate 12 contacts the external mountain. The upper nut 10 and the wedge rod 11 cooperate with the inner rod 4 to fix and limit the external mountain, preventing landslides.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A deformable prestressed adaptive adjustable anchor wedge, characterized in that, The anchor rod (1) includes a wedge assembly and a deformation component. The wedge assembly is located at the top of the anchor rod (1), and the deformation component is installed at the bottom of the anchor rod (1). The deformation component includes an inner rod (4), multiple sets of anchor nails (6), multiple sets of adjusting rods (7), multiple sets of push rods (8), and multiple ring plates (9). The anchor rod (1) is hollow inside and has threaded grooves on its inner wall. The inner rod (4) has external threads (5) on its outer wall. The inner rod (4) is located inside the anchor rod (1). Multiple deformation grooves are opened on the lower outer wall of the anchor rod (1), and multiple anchors... The nail (6) is movably installed in the deformation groove. The inner rod (4) has an adjustment groove at the corresponding position of the deformation groove. Multiple push rods (8) are installed on the top of the adjustment groove. A ring plate (9) is installed at the bottom of the push rod (8). An adjustment rod (7) is installed on the anchor nail (6). The wedge block assembly includes an upper nut (10), two wedge rods (11) and a wedge plate (12). The upper nut (10) is screwed onto the upper part of the inner rod (4). Wedge rods (11) are symmetrically installed on the left and right sides of the upper nut (10). A wedge plate (12) is installed at the bottom of the wedge rods (11).

2. The deformable prestressed adaptive adjustable anchor wedge as described in claim 1, characterized in that, It also includes a nut (2) and a threaded protrusion (3), the nut (2) being installed on the top of the anchor rod (1), and the threaded protrusion (3) being installed on the outer wall of the anchor rod (1).

3. The deformable prestressed adaptive adjustable anchor wedge as described in claim 1, characterized in that, It also includes multiple connecting bolts (13), and multiple connecting holes are provided on the wedge plate (12), with the multiple connecting bolts (13) located in the connecting holes respectively.

4. A deformable prestressed adaptive adjustable anchor wedge as described in claim 1, characterized in that, The outer end of the anchor (6) is set as an alloy cone shape.

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