Anchor rod for polyurethane grouting repair of underground pipeline

Abstract

The utility model relates to the technical field of pipeline repair, in particular to an anchor rod for polyurethane grouting repair of an underground pipeline, which comprises a supporting plate, nuts and a rod body, a reserved groove is arranged at the top of the supporting plate close to the center, the rod body is arranged in the reserved groove, and the nuts are arranged on the periphery of the rod body close to the upper end of the supporting plate. Strip-shaped grooves are formed in the positions, close to the four edges, of the supporting plate, vertical rods are arranged in the strip-shaped grooves, guide blocks are arranged on the two sides of the vertical rods, guide rails are arranged on the positions, close to the two sides of the strip-shaped grooves, of the top of the supporting plate, the guide blocks are located in the corresponding guide rails, and a concentric-square-shaped frame is arranged at the lower end of the supporting plate. Guide holes are formed in the positions, close to four edges, of the concentric-square-shaped frame in a penetrating mode, bearing plates are welded to the bottoms of the vertical rods, mounting holes are formed in the bottoms of the guide blocks in a penetrating mode, and guide rods are connected to the inner sides of the bearing plates; and the ground is provided with a stable and fixed structure, so that the stabilizing effect is better during use.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair, in particular to an anchor rod for polyurethane grouting repair of underground pipelines. Background Art

[0002] The use of anchor rods in polyurethane grouting repair of underground pipelines is a common technical method, mainly used to stabilize the pipeline and the surrounding soil structure. Polyurethane is a polymer material with excellent elasticity and bonding properties. After being injected underground, it can quickly foam and fill the gaps around the pipeline. After solidification, it forms a solid support structure. Anchor rods play a role of fixing and stabilizing in polyurethane grouting repair. After positioning drilling, installing anchor rods, and injecting and fixing anchoring agents, it is convenient to inject polyurethane grouting.

[0003] The previous anchor rods did not have a stable and fixed structure on the ground when in use, and the stability effect during use was not good enough. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides an anchor rod for polyurethane grouting repair of underground pipelines, which has a stable and fixed structure on the ground and has a better stabilizing effect when in use.

[0005] The utility model solves the technical problem by adopting a technical solution that is an anchor rod for repairing underground pipelines with polyurethane grouting, comprising a support plate, a nut and a rod body, wherein a reserved groove is arranged near the center of the top of the support plate, the rod body is arranged in the reserved groove, and a nut is arranged near the upper end of the support plate on the periphery of the rod body;

[0006] The support plate is provided with strip grooves near the four edges, vertical rods are provided in the strip grooves, guide blocks are provided on both sides of the vertical rods, guide rails are provided on the top of the support plate near both sides of the strip grooves, and the guide blocks are located in the corresponding guide rails, a circular frame is provided at the lower end of the support plate, and guide holes are penetrated through the circular frame near the four edges, a supporting plate is welded to the bottom of the vertical rod, a mounting hole is penetrated through the bottom of the guide block, a guide rod is connected to the inner side of the supporting plate, and the guide rods are located in the corresponding guide holes.

[0007] By adopting the above technical solution, the support plate is fixed to the pre-buried screw holes in the ground by passing the external bolts through the mounting holes. Since the support plate is connected to the circular frame, the contact area between the exposed end of the anchor rod and the ground is increased by the circular frame, and the vertical rod is fixed in the strip groove by the cooperation of the guide rail and the guide block. When the rod body is subjected to force, it will be evenly dispersed to the four groups of vertical rods and the circular frame, so that the anchor rod ground has a stable and fixed structure, and the stability effect during use is better.

[0008] Specifically, support rods are connected at the top of the circular frame near the corner and at the bottom of the support plate.

[0009] Specifically, a slurry stopper is provided at the bottom of the support plate near the reserved groove, and an inner cavity allowing the rod body to pass through is provided in the slurry stopper.

[0010] Specifically, a grouting head is arranged at the bottom end of the rod body, the diameter of the grouting head is larger than the diameter of the rod body, and an external thread corresponding to the nut is arranged at the periphery of the rod body.

[0011] Specifically, rubber protective blocks are arranged at positions on the outer wall of the vertical rod corresponding to the strip grooves.

[0012] Specifically, the support plate is provided with oblique chamfers near the corners, and the outer surface of the support plate is provided with a polyurethane anti-rust layer.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses an anchor rod for repairing underground pipelines with polyurethane grouting. Since the support plate is connected to the circular frame, the contact area between the exposed end of the anchor rod and the ground is increased by the circular frame. The vertical rod is fixed in the strip groove through the guide rail and the guide block. When the rod body is subjected to force, the force is evenly distributed to the four groups of vertical rods and the circular frame, so that the anchor rod has a stable and fixed structure on the ground, and the stability effect is better when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0018] Figure 3 It is a side structural schematic diagram of the utility model.

[0019] In the figure: 1. support plate; 2. nut; 3. rod body; 4. grouting head; 5. external thread; 6. vertical rod; 7. strip groove; 8. guide rail; 9. guide block; 10. support plate; 11. mounting hole; 12. circular frame; 13. guide hole; 14. guide rod; 15. grouting plug; 16. chamfer; 17. rubber protective block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In order to make the ground exposed part of the anchor rod have a stable and fixed structure, the stability effect during use is better, such as Figure 1-3 As shown, the utility model discloses an anchor rod for repairing underground pipelines with polyurethane grouting, comprising a support plate 1, a nut 2 and a rod body 3. A reserved groove is provided near the center of the top of the support plate 1, the rod body 3 is provided in the reserved groove, and a nut 2 is provided near the upper end of the support plate 1 on the periphery of the rod body 3;

[0022] The support plate 1 is provided with strip grooves 7 near the four edges, and vertical rods 6 are provided in the strip grooves 7. Guide blocks 9 are provided on both sides of the vertical rods 6. Guide rails 8 are provided on the top of the support plate 1 near both sides of the strip grooves 7. The guide blocks 9 are located in the corresponding guide rails 8. A circular frame 12 is provided at the lower end of the support plate 1. Guide holes 13 are penetrated through the circular frame 12 near the four edges. A support plate 10 is welded to the bottom of the vertical rod 6. A mounting hole 11 is penetrated through the bottom of the guide block 9. A guide rod 14 is connected to the inner side of the support plate 10, and the guide rod 14 is located in the corresponding guide hole 13.

[0023] When in use, the support plate 10 is fixed to the pre-buried screw holes in the ground by passing external bolts through the mounting holes 11. Since the support plate 10 is connected to the circular frame 12, the contact area between the exposed end of the anchor rod and the ground is increased through the circular frame 12, and the vertical rod 6 is fixed in the strip groove 7 through the cooperation of the guide rail 8 and the guide block 9. When the rod body 3 is subjected to force, it will be evenly dispersed to the four groups of vertical rods 6 and the circular frame 12, so that the anchor rod ground has a stable and fixed structure, and the stability effect during use is better.

[0024] For example, Figure 1-2 As shown, the utility model also includes that the top of the circular frame 12 near the corner and the bottom of the support plate 1 are both connected with support rods.

[0025] When in use, the circular frame 12 and the support plate 1 are conveniently formed into a whole through the support rod.

[0026] For example, Figure 1-2 As shown, the utility model also includes that a slurry stopper 15 is provided at the bottom of the support plate 1 near the reserved groove, and an inner cavity allowing the rod body 3 to pass through is provided in the slurry stopper 15.

[0027] For example, Figure 1-3 As shown, the utility model also includes that a grouting head 4 is arranged at the bottom end of the rod body 3 , the diameter of the grouting head 4 is larger than the diameter of the rod body 3 , and an external thread 5 corresponding to the nut 2 is arranged on the periphery of the rod body 3 .

[0028] When in use, since the diameter of the grouting head 4 is larger than the diameter of the rod body 3, the grouting head 4 can withstand greater pressure and is not easily damaged. The external thread 5 facilitates personnel to adjust the position of the nut 2 up and down, which is conducive to tightening or loosening the rod body 3.

[0029] For example, Figure 2-3 As shown, the utility model also includes that a rubber protective block 17 is arranged at a position corresponding to the outer wall of the vertical rod 6 and the strip groove 7.

[0030] When in use, the rubber protection block 17 can prevent the vertical rod 6 and the strip groove 7 from being damaged by collision.

[0031] For example, Figure 1-3 As shown, the utility model also includes that the support plate 1 is provided with an oblique chamfer 16 near the corner, and the outer surface of the support plate 1 is provided with a polyurethane anti-rust layer.

[0032] When in use, the chamfer 16 can reduce the sharp edge of the support plate 1, reducing the risk of injury to personnel when carrying the anchor rod. The polyurethane anti-rust layer can effectively improve the anti-rust performance of the support plate 1, which is conducive to increasing the service life.

[0033] When the utility model is in use, the end exposed on the ground when the anchor rod is in use includes the top of the rod body 3, the supporting plate 1, the circular frame 12, the bearing plate 10, the vertical rod 6 and the nut 2. The personnel can conveniently tighten or loosen the rod body 3 by turning the nut 2. The inner thread corresponding to the installation hole 11 is pre-buried in the ground near the drilling position of the repair operation. The grouting head 4 is inserted into the position with the repair pipe from the drilling hole, passes through the cavity of the inner wall of the rod body 3, and finally grouting is performed through the grouting head 4 to complete the repair of the underground pipeline.

[0034] The support plate 10 is fixed to the pre-buried screw holes in the ground by passing external bolts through the mounting holes 11. Since the support plate 10 is connected to the circular frame 12, the contact area between the exposed end of the anchor rod and the ground is increased by the circular frame 12, and the vertical rod 6 is fixed in the strip groove 7 by the cooperation of the guide rail 8 and the guide block 9. When the rod body 3 is subjected to force, the force will be evenly distributed to the four groups of vertical rods 6 and the circular frame 12, so that the anchor rod ground has a stable and fixed structure, and the stability effect during use is better.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An anchor rod for repairing underground pipelines by polyurethane grouting, characterized in that: It comprises a support plate (1), a nut (2) and a rod body (3); a reserved groove is arranged near the center of the top of the support plate (1); the rod body (3) is arranged in the reserved groove; and a nut (2) is arranged on the periphery of the rod body (3) near the upper end of the support plate (1); The support plate (1) is provided with strip grooves (7) near four edges, a vertical rod (6) is arranged in the strip groove (7), guide blocks (9) are arranged on both sides of the vertical rod (6), guide rails (8) are arranged at the top of the support plate (1) near both sides of the strip groove (7), and the guide blocks (9) are located in the corresponding guide rails (8), a round frame (12) is arranged at the lower end of the support plate (1), and guide holes (13) are penetrated through the round frame (12) near the four edges, a support plate (10) is welded to the bottom of the vertical rod (6), a mounting hole (11) is penetrated through the bottom of the guide block (9), a guide rod (14) is connected to the inner side of the support plate (10), and the guide rod (14) is located in the corresponding guide hole (13).

2. The anchor rod for repairing underground pipelines by polyurethane grouting according to claim 1, characterized in that: The top of the circular frame (12) near the corner and the bottom of the support plate (1) are both connected with support rods.

3. The anchor rod for repairing underground pipelines by polyurethane grouting according to claim 1, characterized in that: A slurry stopper (15) is provided at the bottom of the support plate (1) near the reserved groove, and an inner cavity allowing the rod body (3) to pass through is provided in the slurry stopper (15).

4. The anchor rod for repairing underground pipelines by polyurethane grouting according to claim 1, characterized in that: A grouting head (4) is arranged at the bottom end of the rod body (3); the diameter of the grouting head (4) is larger than the diameter of the rod body (3); and an external thread (5) corresponding to the nut (2) is arranged on the periphery of the rod body (3).

5. The anchor rod for repairing underground pipelines by polyurethane grouting according to claim 1, characterized in that: A rubber protective block (17) is provided at a position corresponding to the outer wall of the vertical rod (6) and the strip-shaped groove (7).

6. The anchor rod for repairing underground pipelines by polyurethane grouting according to claim 1, characterized in that: The support plate (1) is provided with chamfers (16) near the corners, and the outer surface of the support plate (1) is provided with a polyurethane anti-rust layer.

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