Prefabricated anchor rod of cone structure

Abstract

The utility model discloses a precast anchor rod with a cone structure, which comprises a hollow rod body, a fixed retaining seat is fixedly connected onto the hollow rod body, a first thread is arranged at one end of the hollow rod body, and a second thread is arranged at the other end of the hollow rod body. A prefabricated conical anchor body is arranged at the position, located between the fixing blocking base and the second thread, of the hollow rod body, a through hole matched with the hollow rod body is formed in the middle of the prefabricated conical anchor body, a pressing plate nut used for fixing the prefabricated conical anchor body is in threaded connection with the second thread, and a fixing nut is further in threaded connection with the second thread. And the fixing nut is fixedly connected with a fixing pipe. The contact area can be increased during use through the arranged prefabricated conical anchor body, meanwhile, the prefabricated conical anchor body is of a conical structure, excellent anchoring strength can be obtained after grouting solidification, meanwhile, the arranged conical cover can play a shielding role, a grouting hole is prevented from being blocked when an anchor rod is inserted into an anchor hole, and normal proceeding of follow-up grouting is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to a prefabricated anchor rod for a vertebral structure. Background Art

[0002] Anchor bolts are the most fundamental component of modern support structures. They are now used not only in mining but also in engineering technology to reinforce slopes, tunnels, and dams. As one of the primary support forms for underground projects and rock slopes, anchor bolts play a vital role in maintaining the stability of civil engineering projects, especially in rock masses with joints and fissures, where their reinforcement is particularly pronounced.

[0003] At present, the existing anchor rod structure generally consists of a rod body, a grouting hole, and an anchor head. When setting, the anchor rod is inserted into the opened anchor hole, and then grouting is performed through the grouting hole. However, when the existing anchor rod is used, the anchor rod needs to be deeply inserted into the anchor hole. However, when opening anchor holes in some soil areas, due to the soil structure, when the anchor rod is inserted into the anchor hole, the hole for grouting on the anchor rod is easily blocked by mud, and this situation is particularly serious in some anchor holes with larger depths. To address the above problems, we provide a prefabricated anchor rod with a vertebral structure. Utility Model Content

[0004] The purpose of the present invention is to provide a prefabricated anchor rod for a vertebral structure to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A prefabricated anchor rod for a vertebral structure comprises a hollow rod body, a fixed stop seat is fixedly connected to the hollow rod body, one end of the hollow rod body is provided with a first thread, and the other end of the hollow rod body is provided with a second thread, a prefabricated conical anchor body is provided at a position between the fixed stop seat and the second thread, a through hole is provided in the middle of the prefabricated conical anchor body that matches the hollow rod body, a pressure plate nut for fixing the prefabricated conical anchor body is threadedly connected to the second thread, a fixing nut is further threadedly connected to the second thread, and a fixing tube is fixedly connected to the fixing nut, and an anchor assembly for fixing the end of the hollow rod body is provided at the end of the fixing tube away from the pressure plate nut;

[0007] The fixing pipe is also provided with a grouting assembly for grouting into the anchor hole;

[0008] The first thread is provided with an anti-overflow component for preventing slurry from flowing out of the anchor hole.

[0009] As a further solution of the present invention: the anchoring assembly includes a conical block, which is fixedly connected to the end of the fixing tube away from the pressure plate nut, and a plurality of evenly distributed connecting grooves are provided on the side of the conical block close to the pressure plate nut, and anti-slip strips are rotatably connected in the connecting grooves, and elastic sheets are provided in the connecting grooves for opening the anti-slip strips.

[0010] As a further solution of the present invention: the grouting assembly includes a conical cover, which is fixedly connected to the position of the fixed pipe between the conical block and the fixed nut, and the position of the fixed pipe inside the conical cover is provided with a plurality of evenly distributed grouting holes.

[0011] As a further solution of the present invention: the anti-overflow component includes a grouting plug, and the grouting plug is fixedly connected to a baffle at one end away from the prefabricated conical anchor body. There are through-holes in the middle of the baffle and the grouting plug. The baffle and the grouting plug are inserted into the first thread through the through-holes, and the first thread is also threaded with a clamping nut for clamping the baffle.

[0012] As a further solution of the present invention: one side of the grouting plug and the baffle is further provided with a prompt hole penetrating the grouting plug and the baffle.

[0013] As a further solution of the present invention: the prefabricated conical anchor body is prefabricated with concrete.

[0014] As a further solution of the present invention: the diameter of the conical block at one end close to the prefabricated conical anchor body is larger than the diameter of the conical cover at one end close to the prefabricated conical anchor body.

[0015] As a further solution of the present invention: the diameter of the prefabricated conical anchor body gradually decreases from the second thread to the first thread.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model increases the contact area during use by providing a prefabricated conical anchor body. At the same time, the prefabricated conical anchor body is a vertebral structure, which can obtain excellent anchoring strength after the grouting solidifies. At the same time, the provided conical cover can play a shielding role to prevent the grouting hole from being blocked when the anchor rod is inserted into the anchor hole, thereby ensuring the normal progress of subsequent grouting.

[0018] 2. The utility model provides an anti-slip strip, which can form a barb after the anchor rod is placed in the anchor hole, thereby temporarily fixing the anchor rod before grouting to prevent the anchor rod from being easily pulled out. At the same time, the prefabricated conical anchor body and the hollow rod body adopt a split structure, which can be assembled together when used, so that the prefabricated conical anchor body can be independently prefabricated and produced, reducing the production difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 This is a schematic structural diagram of the prefabricated conical anchor body in the present utility model.

[0021] Figure 3 It is a structural schematic diagram of the overflow prevention component in the utility model.

[0022] Figure 4 It is a structural schematic diagram of the anchoring assembly in the present utility model.

[0023] Figure 5 It is a structural schematic diagram of the grouting plug in the utility model.

[0024] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the conical block in the utility model.

[0025] Among them: 1. Hollow rod body; 2. Fixed stop seat; 3. Prefabricated conical anchor body; 4. Perforation; 5. Conical block; 6. Conical cover; 7. Baffle; 8. Grouting plug; 9. First thread; 10. Through hole; 11. Anti-slip strip; 12. Connecting groove; 13. Fixing nut; 14. Grouting hole; 15. Fixing pipe; 16. Pressure plate nut; 17. Second thread; 18. Prompt hole; 19. Tightening nut; 20. Elastic sheet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-6In the embodiment of the present invention, a prefabricated anchor rod for a vertebral structure comprises a hollow rod body 1, a fixed stopper 2 is fixedly connected to the hollow rod body 1, one end of the hollow rod body 1 is provided with a first thread 9, and the other end of the hollow rod body 1 is provided with a second thread 17. A prefabricated conical anchor body 3 is provided at a position between the fixed stopper 2 and the second thread 17 of the hollow rod body 1, and a through hole 10 is provided in the middle of the prefabricated conical anchor body 3 to match the hollow rod body 1. A pressure plate nut 16 for fixing the prefabricated conical anchor body 3 is threadedly connected to the second thread 17, and a fixing nut 13 is also threadedly connected to the second thread 17. The fixing nut 13 A fixing tube 15 is fixedly connected to the upper portion, and an end of the fixing tube 15 away from the pressure plate nut 16 is provided with an anchoring assembly for fixing the end of the hollow rod body 1; the prefabricated conical anchor body 3 is prefabricated with concrete; the diameter of the prefabricated conical anchor body 3 gradually decreases from the second thread 17 to the first thread 9, and the prefabricated conical anchor body 3 can be fixed by the set pressure plate nut 16. At the same time, a through hole 10 is provided in the middle of the prefabricated conical anchor body 3, which can be easily inserted into the hollow rod body 1 and cooperated with the pressure plate nut 16, and the assembly is very convenient. At the same time, the prefabricated conical anchor body 3 is a prefabricated part, which can be prefabricated independently and then assembled with the hollow rod body 1 for use.

[0028] The anchoring assembly includes a conical block 5, which is fixedly connected to the end of the fixing tube 15 away from the pressure plate nut 16. The conical block 5 is provided with a plurality of evenly distributed connecting grooves 12 on the side close to the pressure plate nut 16. The connecting grooves 12 are rotatably connected with anti-slip strips 11, and the connecting grooves 12 are provided with elastic sheets 20 for opening the anti-slip strips 11. During use, when the conical block 5 is inserted into the anchor hole, the anti-slip strip 11 is tilted and can be smoothly inserted into the anchor hole. After the insertion is completed, the anti-slip strip 11 is subjected to elastic force expansion under the action of the elastic sheet 20, so that when the anchor rod is pulled outward, the anti-slip strip 11 can be used to form barbs, thereby locking the anchor rod in the anchor hole.

[0029] The fixed pipe 15 is also provided with a grouting assembly for grouting into the anchor hole; the grouting assembly includes a conical cover 6, which is fixedly connected to the position of the fixed pipe 15 between the conical block 5 and the fixing nut 13, and the position of the fixed pipe 15 inside the conical cover 6 is provided with a number of evenly distributed grouting holes 14; the diameter of the conical block 5 near the end of the prefabricated conical anchor body 3 is larger than the diameter of the conical cover 6 near the end of the prefabricated conical anchor body 3; the conical cover 6 can block the grouting holes 14 to prevent soil from clogging the grouting holes 14, and at the same time, the conical cover 6 and the conical block 5 form a double-cone structure, which can cooperate with the prefabricated conical anchor body 3 to further improve the anchoring strength after grouting.

[0030] The first thread 9 is provided with an anti-overflow component for preventing slurry from flowing out of the anchor hole; the anti-overflow component includes a grouting plug 8, and the grouting plug 8 is fixedly connected to a baffle 7 at one end away from the prefabricated conical anchor body 3, and a through-hole 4 is provided in the middle of the baffle 7 and the grouting plug 8. The baffle 7 and the grouting plug 8 are passed through the through-hole 4 on the first thread 9, and a clamping nut 19 for tightening the baffle 7 is also threadedly connected to the first thread 9; the opening of the anchor hole can be sealed by the provided first thread 9 to prevent a large amount of slurry from flowing out of the anchor hole mouth during the grouting process.

[0031] The grouting plug 8 and the baffle 7 are also provided with a prompt hole 18 passing through the grouting plug 8 and the baffle 7 on one side; the prompt hole 18 is convenient for observing whether the grouting of the anchor hole is completed. When slurry flows out of the prompt hole 18, it means that the grouting inside the anchor hole has been completed, which is convenient for workers to judge.

[0032] The working principle of the utility model is: when working, the hollow rod body 1 is first inserted into the through hole 10, and then the pressure plate nut 16 is rotated onto the second thread 17 to fix the prefabricated conical anchor body 3, and then the fixing nut 13 is installed to the end of the second thread 17. After the installation is completed, the hollow rod body 1 is inserted into the pre-opened anchor hole. After the insertion is completed, the grouting plug 8 is sealed in the opening position of the anchor hole, and then the tightening nut 19 is rotated to tighten it. After the setting is completed, grouting is performed through the hollow structure inside the hollow rod body 1, and the slurry enters the fixing tube 15 from the hollow rod body 1, and then is discharged from the grouting hole 14. The discharged slurry gradually fills the anchor hole. When slurry flows out from the prompt hole 18, it means that the inside of the anchor hole has been grouted. After the slurry solidifies, the anchor rod can obtain excellent anchoring strength.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although this specification describes the embodiments, not every embodiment contains only one technical solution. This description is only for the sake of clarity. Those skilled in the art should read the specification as a whole. The technical solutions in the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A prefabricated anchor rod for a vertebral structure, comprising a hollow rod body (1), characterized in that: The hollow rod body (1) is fixedly connected to a fixed stop seat (2), one end of the hollow rod body (1) is provided with a first thread (9), the other end of the hollow rod body (1) is provided with a second thread (17), the hollow rod body (1) is provided with a prefabricated conical anchor body (3) at a position between the fixed stop seat (2) and the second thread (17), the middle of the prefabricated conical anchor body (3) is provided with a through hole (10) matching the hollow rod body (1), the second thread (17) is threadedly connected to a pressure plate nut (16) for fixing the prefabricated conical anchor body (3), the second thread (17) is also threadedly connected to a fixing nut (13), the fixing nut (13) is fixedly connected to a fixing tube (15), and the fixing tube (15) is provided with an anchor assembly for fixing the end of the hollow rod body (1) at one end away from the pressure plate nut (16); The fixing pipe (15) is also provided with a grouting assembly for grouting into the anchor hole; The first thread (9) is provided with an anti-overflow component for preventing slurry from flowing out of the anchor hole.

2. A prefabricated anchor rod for a vertebral structure according to claim 1, characterized in that: The anchoring assembly includes a conical block (5), which is fixedly connected to one end of the fixing tube (15) away from the pressure plate nut (16), and a plurality of evenly distributed connecting grooves (12) are provided on the side of the conical block (5) close to the pressure plate nut (16), and the connecting grooves (12) are all rotatably connected with anti-slip strips (11), and the connecting grooves (12) are all provided with elastic sheets (20) for opening the anti-slip strips (11).

3. A prefabricated anchor rod for a vertebral structure according to claim 2, characterized in that: The grouting assembly comprises a conical cover (6), wherein the conical cover (6) is fixedly connected to a fixed pipe (15) located between the conical block (5) and the fixed nut (13), and a plurality of evenly distributed grouting holes (14) are provided at a position of the fixed pipe (15) located inside the conical cover (6).

4. The prefabricated anchor rod for vertebral structure according to claim 1, characterized in that: The anti-overflow component comprises a grouting plug (8), one end of the grouting plug (8) away from the prefabricated conical anchor body (3) is fixedly connected to a baffle (7), a through-hole (4) is provided in the middle of the baffle (7) and the grouting plug (8), the baffle (7) and the grouting plug (8) are passed through the through-hole (4) on a first thread (9), and a clamping nut (19) for clamping the baffle (7) is also threadedly connected to the first thread (9).

5. The prefabricated anchor rod for vertebral structure according to claim 4, characterized in that: One side of the grouting plug (8) and the baffle (7) is also provided with a prompt hole (18) penetrating the grouting plug (8) and the baffle (7).

6. The prefabricated anchor rod for vertebral structure according to claim 1, characterized in that: The prefabricated conical anchor body (3) is prefabricated using concrete.

7. The prefabricated anchor rod for vertebral structure according to claim 2, characterized in that: The diameter of the conical block (5) at one end close to the prefabricated conical anchor body (3) is larger than the diameter of the conical cover (6) at one end close to the prefabricated conical anchor body (3).

8. The prefabricated anchor rod for vertebral structure according to claim 1, characterized in that: The diameter of the prefabricated conical anchor body (3) gradually decreases from the second thread (17) to the first thread (9).

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