Side slope protection anchor rod

Abstract

The utility model discloses a side slope protection anchor rod, which relates to the technical field of side slope protection and comprises an anchor rod body, a stop-grouting plug is arranged at one end of the anchor rod body, a base plate is arranged on one side of the stop-grouting plug, a nut is arranged on one side of the base plate, a plurality of groups of fixing holes are arranged at the other end of the anchor rod body, and wedge-shaped blocks are arranged in the fixing holes in a sliding mode. And an elastic piece is connected between the wedge-shaped block and the anchor rod body. According to the utility model, the insertion rod is arranged in the base plate, so that the protection cover can be conveniently mounted and dismounted on the base plate, the water leakage hole is formed in the damping block, water is prevented from remaining in the protection cover, and the damping plate is arranged on the side wall of the protection cover, so that the anchor rod body is effectively protected, and the anchor rod body is prevented from being damaged. Meanwhile, after the anchor rod is hit into a slope soil layer to a specified depth, the wedge-shaped block opens outwards and is inserted into the soil layer under the reset of the elastic piece, so that the resistance between the slope protection anchor rod and the soil layer is increased, the slope protection anchor rod is effectively prevented from sliding out of the soil layer, and the anchoring effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to a slope protection bolt. Background Technique

[0002] In the construction of subgrade slope protection and tunnel excavation support, bolt support is a relatively common reinforcement support method. Among them, the cement cartridge bolt, as one of the bonded bolts, is commonly used for slope reinforcement protection and initial support of tunnels.

[0003] The existing protection bolts usually use galvanizing for anti-corrosion. However, it is difficult to galvanize the threaded front end of the bolt, and the quality is difficult to guarantee. Moreover, the thread is easily worn and damaged during installation, with a short service life and poor use effect. In addition, the existing reinforced bolts for tunnel slope protection are prone to damage and do not provide good protection for the bolts. In addition, after the existing bolts are driven into the soil, the friction and resistance between the bolts and the soil are small, resulting in low bond strength between the bolts and the soil, and the bolts are prone to sliding, thus reducing the pull-out resistance and affecting the anchoring effect. Summary of the Utility Model

[0004] To solve the problems of the existing technology, the utility model provides a slope protection bolt, which includes a bolt body. A grout stop plug is arranged at one end of the bolt body. A backing plate is arranged on one side of the grout stop plug. A nut is arranged on one side of the backing plate. A protective cover is arranged on one side of the backing plate. One end of the protective cover is inserted into the side wall of the backing plate. A cavity is arranged in the backing plate. An intermediate block is fixedly connected to the side wall of the cavity. A spring is fixedly connected to one end of the intermediate block. A movable plate is fixedly connected to one end of the spring. A plug rod is fixedly connected to the side wall of the movable plate. One end of the plug rod passes through the side wall of the cavity and is inserted into the side wall of the protective cover. A push plate is fixedly connected to one end of the movable plate. One end of the push plate passes through the side wall of the cavity and extends to one side of the backing plate. A plurality of shock-absorbing columns are fixedly connected to the side wall of the protective cover. A shock-absorbing plate is fixedly connected to one end of the shock-absorbing column. A receiving hole is arranged on the side wall of the protective cover. A filter plate is fixedly connected to the side wall of the receiving hole. A shock-absorbing spring is fixedly connected to the side wall of the filter plate. A shock-absorbing block is fixedly connected to one end of the shock-absorbing spring. A plurality of water leakage holes are arranged on the shock-absorbing block;

[0005] A plurality of groups of fixing holes are circumferentially formed at the other end of the bolt body. A wedge block is slidably arranged in the fixing hole. An elastic member is connected between the wedge block and the bolt body.

[0006] Further, a groove is arranged on the side wall of the backing plate, and one end of the protective cover is located in the groove.

[0007] Further, the elastic member is located in the fixing hole.

[0008] A further solution is that a plurality of jacks are provided on the side wall of the protective cover, and one end of the insertion rod is inserted into the jacks.

[0009] A further solution is that a rectangular hole is provided on the side wall of the cavity, and one end of the push plate passes through the rectangular hole and extends to one side of the backing plate.

[0010] A further solution is that a plurality of mounting grooves are provided on the side wall of the shock-absorbing plate, and one end of the shock-absorbing column is fixedly connected to the side wall of the mounting groove.

[0011] A further solution is that protrusions are evenly distributed on the side wall of the push plate, and the cross section of the protrusions is triangular.

[0012] Advantages of the utility model:

[0013] By arranging the insertion rod in the backing plate, the utility model facilitates the installation and disassembly of the protective cover on the backing plate. By arranging the water leakage holes on the shock-absorbing block, the residual accumulated water in the protective cover is prevented. By arranging the shock-absorbing plate on the side wall of the protective cover, the bolt body is effectively protected and the damage of the bolt body is prevented, which has a good protective effect on the bolt body.

[0014] After the anchor bolt of the utility model is driven into the slope soil layer to a specified depth, the wedge block opens outwards and inserts into the soil layer under the reset of the elastic member, so as to increase the resistance between the slope protection anchor bolt and the soil layer, thereby effectively preventing the slope protection anchor bolt from sliding out of the soil layer and improving the anchoring effect. Brief description of the drawings

[0015] Figure 1 is a schematic structural diagram of a slope protection anchor bolt provided by an embodiment of the utility model;

[0016] Figure 2 is a schematic structural diagram of the outer surface of the anchor bolt provided by an embodiment of the utility model;

[0017] Figure 3 is Figure 1 an enlarged structural diagram at A in

[0018] Figure 4 is a schematic three-dimensional sectional structural diagram of the connection of the anchor bolt, the wedge block and the elastic member provided by an embodiment of the utility model;

[0019] Reference signs in the drawings: 1 - bolt body; 10 - grout plug; 11 - backing plate; 12 - nut; 13 - protective cover; 14 - intermediate block; 15 - spring; 16 - movable plate; 17 - insertion rod; 18 - push plate; 19 - shock-absorbing column; 20 - shock-absorbing plate; 21 - filter plate; 22 - shock-absorbing spring; 23 - shock-absorbing block; 3 - fixing hole; 4 - wedge block; 5 - elastic member. Detailed description of the invention

[0020] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described.

[0021] As Figures 1-4 shown, an embodiment of the present utility model discloses a slope protection anchor rod, which includes an anchor rod body 1. One end of the anchor rod body 1 is provided with a grout stopper 10. One side of the grout stopper 10 is provided with a backing plate 11. One side of the backing plate 11 is provided with a nut 12. One side of the backing plate 11 is provided with a protective cover 13. One end of the protective cover 13 is inserted into the side wall of the backing plate 11. A groove is provided on the side wall of the backing plate 11. One end of the protective cover 13 is located in the groove. A cavity is provided in the backing plate 11. An intermediate block 14 is fixedly connected to the side wall of the cavity. One end of the intermediate block 14 is fixedly connected to a spring 15. One end of the spring 15 is fixedly connected to a movable plate 16. A plug rod 17 is fixedly connected to the side wall of the movable plate 16. One end of the plug rod 17 passes through the side wall of the cavity and is inserted into the side wall of the protective cover 13. One end of the movable plate 16 is fixedly connected to a push plate 18. One end of the push plate 18 passes through the side wall of the cavity and extends to one side of the backing plate 11. A plurality of shock-absorbing columns 19 are fixedly connected to the side wall of the protective cover 13. One end of the shock-absorbing column 19 is fixedly connected to a shock-absorbing plate 20. A receiving hole is provided on the side wall of the protective cover 13. A filter plate 21 is fixedly connected to the side wall of the receiving hole. A shock-absorbing spring 22 is fixedly connected to the side wall of the filter plate 21. One end of the shock-absorbing spring 22 is fixedly connected to a shock-absorbing block 23. A plurality of water leakage holes are provided on the shock-absorbing block 23. A rectangular hole is provided on the side wall of the cavity. One end of the push plate 18 passes through the rectangular hole and extends to one side of the backing plate 11. A plurality of mounting grooves are provided on the side wall of the shock-absorbing plate 20. One end of the shock-absorbing column 19 is fixedly connected to the side wall of the mounting groove.

[0022] Through the above settings in this embodiment, it can be realized that by pushing the push plate, the movement of the plug rod is driven by the movable plate, and the protective cover is placed on the side wall of the backing plate. Due to the action of the spring, the protective cover is fixedly connected to the side wall of the backing plate. The water leakage holes on the shock-absorbing block prevent water from being contained in the protective cover. With the action of the shock-absorbing plate, the anchor rod body is effectively protected.

[0023] A plurality of groups of fixing holes 3 are circumferentially formed at the other end of the anchor rod body 1. A wedge block 4 is slidably arranged in the fixing hole 3. The wedge block 4 can move outward and be clamped into the slope soil layer. An elastic member 5 is connected between the wedge block 4 and the anchor rod body 1. The elastic member 5 is located in the fixing hole 3.

[0024] It should be noted that the elastic member in this embodiment is a return spring.

[0025] In this embodiment, the above settings can be used to install the anchor rod body onto the drill drive head, and the anchor rod body is driven into the slope soil layer by the drill. When the anchor rod body is being driven in, the wedge block is pressed inward by the soil and enters the fixing hole, and the elastic member is compressed accordingly. After the anchor rod body is driven to the specified depth, the wedge block expands outward under the elastic force of the return spring and inserts into the soil layer, thus increasing the resistance between the anchor rod body and the soil layer, effectively preventing the anchor rod body from slipping out of the soil layer, and improving the anchoring effect.

[0026] In this embodiment, a plurality of insertion holes are provided on the side wall of the protective cover 13, and one end of the insertion rod 17 is inserted into the insertion holes.

[0027] Through the above settings, this embodiment can facilitate the insertion of one end of the insertion rod on the side wall of the protective cover.

[0028] In this embodiment, protrusions are evenly distributed on the side wall of the push plate 18, and the cross-section of the protrusions is triangular.

[0029] Through the above settings, this embodiment can increase the roughness of the side wall of the push plate, facilitating the pushing of the push plate.

[0030] Finally, it should be noted that the above only describes the specific embodiments of the present invention in detail. However, the present invention is not limited to the above-described specific embodiments. Equivalent modifications and substitutions made by those skilled in the art to the present invention are also within the scope of the present invention. Therefore, equivalent transformations and modifications made without departing from the spirit and scope of the present invention are all covered within the scope of the present invention.

Claims

1. A slope protection anchor rod, comprising an anchor rod body (1), characterized in that: One end of the anchor rod body (1) is provided with a grout plug (10), one side of the grout plug (10) is provided with a backing plate (11), one side of the backing plate (11) is provided with a nut (12), one side of the backing plate (11) is provided with a protective cover (13), one end of the protective cover (13) is inserted into the side wall of the backing plate (11), a cavity is provided in the backing plate (11), an intermediate block (14) is fixedly connected to the side wall of the cavity, one end of the intermediate block (14) is fixedly connected to a spring (15), one end of the spring (15) is fixedly connected to a movable plate (16), a plug rod (17) is fixedly connected to the side wall of the movable plate (16), one end of the plug rod (17) passes through the side wall of the cavity and is inserted into the side wall of the protective cover (13), one end of the movable plate (16) is fixedly connected to a push plate (18), one end of the push plate (18) passes through the side wall of the cavity and extends to one side of the backing plate (11), a plurality of shock-absorbing columns (19) are fixedly connected to the side wall of the protective cover (13), one end of the shock-absorbing column (19) is fixedly connected to a shock-absorbing plate (20), a receiving hole is provided on the side wall of the protective cover (13), a filter plate (21) is fixedly connected to the side wall of the receiving hole, a shock-absorbing spring (22) is fixedly connected to the side wall of the filter plate (21), one end of the shock-absorbing spring (22) is fixedly connected to a shock-absorbing block (23), and a plurality of water leakage holes are provided on the shock-absorbing block (23); A plurality of groups of fixing holes (3) are circumferentially formed at the other end of the anchor rod body (1), a wedge block (4) is slidably arranged in the fixing hole (3), and an elastic member (5) is connected between the wedge block (4) and the anchor rod body (1).

2. The slope protection anchor rod according to claim 1, characterized in that: A groove is provided on the side wall of the backing plate (11), and one end of the protective cover (13) is located in the groove.

3. The slope protection anchor rod according to claim 1, characterized in that: The elastic member (5) is located in the fixing hole (3).

4. The slope protection anchor rod according to claim 1, characterized in that: A plurality of insertion holes are provided on the side wall of the protective cover (13), and one end of the plug rod (17) is inserted into the insertion holes.

5. The slope protection anchor rod according to claim 1, characterized in that: A rectangular hole is provided on the side wall of the cavity, and one end of the push plate (18) passes through the rectangular hole and extends to one side of the backing plate (11).

6. The slope protection anchor rod according to claim 1, characterized in that: A plurality of mounting grooves are provided on the side wall of the shock-absorbing plate (20), and one end of the shock-absorbing column (19) is fixedly connected to the side wall of the mounting groove.

7. The slope protection anchor rod according to claim 1, characterized in that: Protrusions are evenly distributed on the side wall of the push plate (18), and the cross section of the protrusions is triangular.

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