Bridge and tunnel engineering slope protection anchor rod convenient to install

Abstract

The utility model discloses a slope protection anchor rod convenient to install for bridge and tunnel engineering, and relates to the technical field of slope protection for bridge and tunnel engineering. The anchor rod comprises a rod body, the outer surface of the rod body is provided with a threaded ring, a fixing plate, a jacking ring and an expansion piece from top to bottom, a sliding groove is formed in the bottom of the threaded ring, the inner side of the sliding groove is movably connected with a jacking rod, and a screw rod is arranged on one side of the fixing plate. A worker rotates the locking pipe, then the locking pipe extends on the screw rod, the locking pipe rotates and displaces in the direction of the locking hole in the adjacent anchor rod, when the locking pipe corresponds to the locking hole, the thread on the outer surface of the locking pipe is meshed with the thread of the locking hole, and then the purpose of connecting the adjacent anchor rods is achieved. The adjacent anchor rods are connected with each other, so that the overall stability of the anchor rods is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection for bridge and tunnel engineering, in particular to a slope protection anchor rod for bridge and tunnel engineering which is easy to install. Background Art

[0002] Anchor support refers to a type of reinforcement support method used in surface projects such as slopes, deep rock foundation pits, and underground chamber construction such as tunnels and mines. Rods are made of metal, wood, polymer or other materials and driven into pre-drilled holes in the surface rock or the rock around the chamber. The purpose of support is achieved by utilizing the special structure of the head and rod body and the tail support plate (optional), or by relying on the bonding effect to combine the surrounding rock with the stable rock mass, thereby producing a suspension effect, a combined beam effect, and a reinforcement effect.

[0003] Most of the existing anchor rod structures are independent individuals, and there is no connection structure between the anchor rods, which causes the anchor rods to loosen easily during the positioning process and has relatively poor stability. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a slope protection anchor rod for bridge and tunnel engineering that is easy to install, so as to solve the technical problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slope protection anchor rod for bridge and tunnel engineering that is easy to install, comprising a rod body, the outer surface of the rod body is respectively provided with a threaded ring, a fixed plate, a top pressure ring and an expansion plate from top to bottom, a sliding groove is provided at the bottom of the threaded ring, and the inner side of the sliding groove is movably connected with a top pressure rod, a screw rod is provided on one side of the fixed plate, a locking tube is provided on the outer surface of the screw rod, and a locking hole is provided on the other side of the fixed plate.

[0006] Furthermore, the threaded ring is threadedly connected to the outer surface of the rod body, and a handle is fixed to the outer surface of the threaded ring.

[0007] By adopting the above technical solution, the staff can easily rotate the threaded ring through the handle, so that the threaded ring can be moved downward.

[0008] Furthermore, a plurality of positioning cones are provided on both sides of the bottom of the fixing plate.

[0009] By adopting the above technical solution, during installation, several groups of positioning cones are interlaced and connected with the bridge and tunnel to locate the position of the slope anchor rods on the bridge and tunnel project to improve stability.

[0010] Furthermore, a rod tip is welded at the bottom of the rod body.

[0011] By adopting the above technical solution, the rod tip can be easily inserted into the soil foundation of the bridge and tunnel, thereby achieving the purpose of preliminary fixing of the anchor rod.

[0012] Furthermore, the rod body and the rod tip are both hollow inside, a grouting port is provided at the top of the rod body, and a through hole penetrates the outer surface of the rod tip.

[0013] By adopting the above technical solution, the staff can easily inject mortar into the rod body and the rod tip through the grouting port, and then part of the mortar flows out from the through hole to solidify and fix the anchor rod and the bridge tunnel.

[0014] Furthermore, the top of the grouting port tends to expand.

[0015] By adopting the above technical solution, it is more convenient for workers to inject mortar into the interior of the rod body.

[0016] Furthermore, the expansion plates are provided in four groups, and the four groups of expansion plates are surrounded and fixed on the outer surface of the rod body.

[0017] By adopting the above technical solution, the expansion plate will expand outward after being squeezed, thereby improving the stability of the anchor rod and making it less likely to loosen.

[0018] Furthermore, the bottom of the top pressure ring and the top of the expansion sheet are both sloped.

[0019] By adopting the above technical solution, the sloped setting enables the top pressure ring to easily and quickly squeeze the expansion sheet, thereby causing the expansion sheet to deform.

[0020] Furthermore, a thread is provided on one side of the outer surface of the locking tube, and a rotating ring is fixed on the other side of the outer surface of the locking tube.

[0021] By adopting the above technical solution, the staff can rotate the rotating tube through the rotating ring, so that the locking tube can be displaced toward the locking hole and threadedly connected thereto.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] 1. The utility model is provided with a screw rod, a locking tube and a locking hole. After the anchor rod is fixed and installed, the staff rotates the locking tube, thereby extending the locking tube on the screw rod, and the locking tube rotates and displaces toward the locking hole on the adjacent anchor rod. When the locking tube corresponds to the locking hole, the thread on the outer surface of the locking tube will mesh with the thread of the locking hole, thereby achieving the purpose of connecting the adjacent anchor rods. By connecting the adjacent anchor rods to each other, the overall stability of the anchor rod is greatly improved;

[0024] 2. The utility model is provided with an expansion plate, a top pressure ring, a threaded ring and a top pressure rod. During the connection process of the anchor rod and the bridge tunnel, the staff rotates the threaded ring, thereby causing the threaded ring to move downward, so that the threaded ring applies pressure to the top pressure ring through the top pressure rod, and then the top pressure ring squeezes the expansion plate, so that the expansion plate expands outward, thereby interlacing and connecting the four expansion plates with the bridge tunnel, and then limiting and fixing the connection between the entire anchor rod and the bridge tunnel to prevent the anchor rod from falling off and further improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the rod body of the utility model;

[0027] Figure 3 This is a schematic diagram of the top pressure ring structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the locking tube structure of the utility model.

[0029] In the figure: 1. rod body; 2. fixing plate; 3. threaded ring; 4. grouting port; 5. locking hole; 6. screw; 7. locking tube; 8. top pressure ring; 9. expansion plate; 10. rod tip; 11. through hole; 12. positioning cone; 13. rotating ring; 14. handle; 15. slide groove; 16. top pressure rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0031] The following describes an embodiment of the utility model based on its overall structure.

[0032] Embodiment 1: A slope anchor rod for bridge and tunnel engineering that is easy to install, such as Figure 1-Figure 4As shown, it includes a rod body 1, a rod tip 10 is welded at the bottom of the rod body 1, and the rod tip 10 is convenient for being inserted into the soil foundation of the bridge and tunnel, thereby achieving the purpose of preliminarily fixing the anchor rod. The outer surface of the rod body 1 is respectively provided with a threaded ring 3, a fixing plate 2, a top pressure ring 8 and an expansion plate 9 from top to bottom. The expansion plate 9 is made of stainless steel. The threaded ring 3 is threadedly connected to the upper surface of the outer surface of the rod body 1, and a handle 14 is fixed on the outer surface of the threaded ring 3. The staff can easily rotate the threaded ring 3 through the handle 14, so that the threaded ring 3 can be moved downward. Several groups of positioning cones 12 are provided on both sides of the bottom of the fixing plate 2. During installation, several groups of positioning cones 12 are interlaced and connected with the bridge and tunnel to locate the position of the slope protection anchor rod on the bridge and tunnel project to improve stability. A slide groove 15 is provided at the bottom of the threaded ring 3, and a top pressure rod 16 is movably connected to the inner side of the slide groove 15. A screw rod 6 is provided on one side of the fixing plate 2, and a locking tube 7 is provided on the outer surface of the screw rod 6. A locking hole 5 is provided on the other side of the fixing plate 2.

[0033] See also Figure 2 In the above embodiment, the interior of the rod body 1 and the rod tip 10 are both hollow, a grouting port 4 is provided at the top of the rod body 1, and a through hole 11 is penetrated through the outer surface of the rod tip 10. The staff can easily inject mortar into the rod body 1 and the rod tip 10 through the grouting port 4, and then part of the mortar flows out from the through hole 11 to solidify and fix the anchor rod and the bridge tunnel.

[0034] See also Figure 1-Figure 2 In the above embodiment, the top of the grouting port 4 has an expansion trend, making it more convenient for the staff to inject mortar into the rod body 1.

[0035] See also Figure 1-Figure 2 In the above embodiment, four groups of expansion plates 9 are provided, and the four groups of expansion plates 9 are fixed around the outer surface of the rod body 1. The expansion plates 9 will expand outward after being squeezed, thereby improving the stability of the anchor rod and preventing it from loosening easily.

[0036] See also Figure 1 , Figure 2 and Figure 4 In the above embodiment, a thread is provided on one side of the outer surface of the locking tube 7, and a rotating ring 13 is fixed on the other side of the outer surface of the locking tube 7. The staff can rotate the locking tube 7 through the rotating ring 13, so that the locking tube 7 can be displaced toward the locking hole and threadedly connected thereto.

[0037] Embodiment 2: In order to facilitate the top pressure ring to smoothly squeeze the expansion sheet, the embodiment 2 is improved on the basis of the embodiment 1, see Figure 1-Figure 3 The bottom of the top pressure ring 8 and the top of the expansion sheet 9 are both sloped. The sloped setting enables the top pressure ring 8 to easily and quickly squeeze the expansion sheet 9, thereby causing the expansion sheet 9 to deform.

[0038] The implementation principle of the utility model is as follows: during the connection process of the anchor rod and the bridge tunnel, the staff rotates the threaded ring 3, thereby causing the threaded ring 3 to move downward, so that the threaded ring 3 applies pressure to the top pressure ring 8 through the top pressure rod 16, and then the top pressure ring 8 squeezes the expansion plate 9, so that the expansion plate 9 expands outward, thereby interlacing and connecting the four expansion plates 9 with the bridge tunnel, and then limiting and fixing the connection between the entire anchor rod and the bridge tunnel. After the anchor rod is fixed and installed, the staff rotates the locking tube 7, thereby causing the locking tube 7 to extend on the screw rod 6, and the locking tube 7 is rotated and displaced toward the locking hole 5 on the adjacent anchor rod. When the locking tube 7 corresponds to the locking hole 5, the thread on the outer surface of the locking tube 7 will mesh with the thread of the locking hole 5, thereby achieving the purpose of connecting the adjacent anchor rods.

[0039] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A slope protection anchor rod for bridge and tunnel engineering that is easy to install, comprising a rod body (1), characterized in that: The outer surface of the rod body (1) is provided with a threaded ring (3), a fixed plate (2), a top pressure ring (8) and an expansion plate (9) from top to bottom, respectively; a slide groove (15) is provided at the bottom of the threaded ring (3), and a top pressure rod (16) is movably connected to the inner side of the slide groove (15); a screw rod (6) is provided on one side of the fixed plate (2), a locking tube (7) is provided on the outer surface of the screw rod (6), and a locking hole (5) is provided on the other side of the fixed plate (2).

2. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 1 is characterized by: The threaded ring (3) is threadedly connected to the outer surface of the rod body (1), and a handle (14) is fixed to the outer surface of the threaded ring (3).

3. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 1 is characterized by: A plurality of groups of positioning cones (12) are provided on both sides of the bottom of the fixing plate (2).

4. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 1 is characterized in that: A rod tip (10) is welded to the bottom of the rod body (1).

5. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 4 is characterized by: The rod body (1) and the rod tip (10) are both hollow inside, a grouting port (4) is provided at the top of the rod body (1), and a through hole (11) penetrates the outer surface of the rod tip (10).

6. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 5 is characterized by: The top of the grouting port (4) has an expansion tendency.

7. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 1 is characterized by: The expansion plates (9) are provided in four groups, and the four groups of expansion plates (9) are surrounded and fixed on the outer surface of the rod body (1).

8. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 1 is characterized by: The bottom of the top pressure ring (8) and the top of the expansion sheet (9) are both sloped.

9. The slope protection anchor rod for bridge and tunnel engineering that is easy to install according to claim 1 is characterized by: One side of the outer surface of the locking tube (7) is provided with a thread, and the other side of the outer surface of the locking tube (7) is fixed with a rotating ring (13).

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