Hollow grouting anchor rod with limiting device

Abstract

The utility model discloses a hollow grouting anchor rod with a limiting device, and relates to the technical field of anchor rods. The anchor rod comprises an anchor rod body, an anchor head is fixedly connected to the left end of the anchor rod body, a grouting assembly used for allowing slurry to pass through is arranged on the surface of the anchor rod body, a driving mechanism used for controlling the grouting assembly to operate is installed on the surface of the anchor rod body, and a limiting assembly is further arranged on the surface of the anchor rod body. The surface of the grouting assembly is connected with a linkage assembly used for controlling operation of the limiting assembly, the grouting assembly comprises a grouting hole, the grouting hole is formed in the surface of the anchor rod body, the surface of the anchor rod body is slidably connected with a check ring, and the driving mechanism comprises a first fixing strip and a second fixing strip. During use, the effect of effectively limiting the grouting anchor rod conveniently is achieved, the anchor rod is prevented from shaking in a hole in the grouting process, and therefore the stability of the anchor rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to a hollow grouting anchor rod with a limiting device. Background Art

[0002] Grouting anchor is a new product developed according to the actual needs of my country's tunnel engineering, slope control engineering, coal mine tunnel engineering, etc. The anchor body of the ordinary hollow grouting anchor adopts a hollow design, and the hole in the rod body is used as a high-pressure drilling channel and a grouting channel. Compared with the solid rod body, the hollow rod body design can obtain better rigidity and shear strength.

[0003] When using traditional grouting anchor rods, it is necessary to first drill holes in the rock and then insert the grouting anchor rods into the drilled holes, and finally use a grouting machine to inject grout. However, it is difficult to effectively limit the position of traditional grouting anchor rods during use, which makes the anchor rods easy to slide relative to the rock mass, resulting in poor stability in the use of the anchor rod structure.

[0004] For this purpose, a hollow grouting anchor rod with a limiting device is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology, and the utility model provides a hollow grouting anchor rod with a limiting device.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A hollow grouting anchor with a limiting device comprises an anchor body, the left end of which is fixedly connected to an anchor head, the surface of the anchor body is provided with a grouting assembly for the passage of slurry, the surface of the anchor body is installed with a driving mechanism for controlling the operation of the grouting assembly, the surface of the anchor body is also provided with a limiting assembly, and the surface of the grouting assembly is connected with a linkage assembly for controlling the operation of the limiting assembly.

[0008] Furthermore, the grouting assembly comprises a grouting hole, and the grouting hole is opened on the surface of the anchor rod body, and a retaining ring is slidably connected to the surface of the anchor rod body.

[0009] Furthermore, the driving mechanism includes a first fixing bar and a second fixing bar, and the first fixing bar and the second fixing bar are both fixedly connected to the surface of the anchor rod body, the surface of the first fixing bar is threadedly connected with a threaded column, and the end of the threaded column is rotatably connected to the retaining ring, the other end of the threaded column is fixedly connected to a turntable, the inner wall of the second fixing bar is slidably connected with a connecting rod, and the end of the connecting rod is fixedly connected to the retaining ring.

[0010] Furthermore, the limiting assembly includes a mounting plate, and the mounting plate is fixedly connected to the anchor rod body, the surface of the mounting plate is rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly sleeved with a connecting plate, and the end of the connecting plate is fixedly connected to a toothed plate.

[0011] Furthermore, the linkage assembly includes a fixed sleeve, and the fixed sleeve is fixedly connected to the anchor rod body, a sliding rod is movably inserted into the inner wall of the fixed sleeve, and one end of the sliding rod is fixedly connected to the retaining ring, a convex tooth is fixedly connected to the surface of the sliding rod, and a gear is fixedly sleeved on the surface of the rotating shaft, and the gear is meshed with the convex tooth.

[0012] Furthermore, the number of the limit assemblies and the linkage assemblies are both two groups, and the two groups of limit assemblies and linkage assemblies are symmetrically arranged up and down.

[0013] The beneficial effects of the utility model are as follows:

[0014] Insert the anchor body and the anchor head into the preset hole, control the movement of the grouting assembly through the driving mechanism, and make the grouting assembly in the conducting state, then the grouting assembly can be used for grouting, and during the movement of the grouting assembly, it will drive the linkage assembly to operate, and under the driving action of the linkage assembly, the limiting assembly will operate to tension and fix the inner wall of the preset hole, thereby limiting the anchor body, and achieving the effect of facilitating the effective limitation of the grouting anchor rod during use, avoiding the shaking of the anchor rod in the hole during the grouting process, thereby ensuring the stability of the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the anchor rod of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the linkage assembly of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the driving mechanism of the utility model;

[0019] Figure numerals: 1. anchor rod body; 2. anchor head; 3. grouting assembly; 301. grouting hole; 302. retaining ring; 4. driving mechanism; 401. first fixing bar; 402. threaded column; 403. turntable; 404. second fixing bar; 405. connecting rod; 5. limiting assembly; 501. mounting plate; 502. rotating shaft; 503. connecting plate; 504. tooth plate; 6. linkage assembly; 601. fixing sleeve; 602. sliding rod; 603. convex tooth; 604. gear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4 As shown, a hollow grouting anchor with a limiting device comprises an anchor body 1, the left end of the anchor body 1 is fixedly connected with an anchor head 2, a grouting assembly 3 for slurry to pass through is arranged on the surface of the anchor body 1, a driving mechanism 4 for controlling the operation of the grouting assembly 3 is installed on the surface of the anchor body 1, a limiting assembly 5 is also arranged on the surface of the anchor body 1, and a linkage assembly 6 for controlling the operation of the limiting assembly 5 is connected to the surface of the grouting assembly 3. More specifically, the anchor body 1 and the anchor head 2 are inserted into a preset hole, and the grouting assembly 3 is controlled to move by the driving mechanism 4 so that the grouting assembly 3 is in a conducting state, and the grouting assembly 3 can be used for grouting, and in the process of the grouting assembly 3 moving, the linkage assembly 6 will be driven to operate, and under the driving action of the linkage assembly 6, the limiting assembly 5 is operated to tighten and fix the inner wall of the preset hole, thereby limiting the anchor body 1.

[0025] The grouting assembly 3 includes a grouting hole 301, and the grouting hole 301 is opened on the surface of the anchor rod body 1, and the surface of the anchor rod body 1 is slidably connected with a retaining ring 302. It should be noted that the slurry flows through the inside of the anchor rod body 1 and flows into the preset hole through the grouting hole 301, thereby realizing grouting. The retaining ring 302 can be used to block the grouting hole 301, and the driving mechanism 4 is used to control the movement of the retaining ring 302, thereby controlling the slurry to flow out of the grouting hole 301.

[0026] The driving mechanism 4 includes a first fixing bar 401 and a second fixing bar 404, and the first fixing bar 401 and the second fixing bar 404 are both fixedly connected to the surface of the anchor rod body 1, the surface of the first fixing bar 401 is threadedly connected with a threaded column 402, and the end of the threaded column 402 is rotatably connected to the retaining ring 302, the other end of the threaded column 402 is fixedly connected to a turntable 403, and the inner wall of the second fixing bar 404 is slidably connected with a connecting rod 405, and the end of the connecting rod 405 is fixedly connected to the retaining ring 302. More specifically, by rotating the turntable 403, the threaded column 402 is driven to rotate, and under the action of the thread, the threaded column 402 will move along the inner wall of the first fixing bar 401, thereby driving the retaining ring 302 to move, and at the same time, the retaining ring 302 will drive the connecting rod 405 to slide along the inner wall of the second fixing bar 404, limiting the moving direction of the retaining ring 302.

[0027] The limiting assembly 5 includes a mounting plate 501, and the mounting plate 501 is fixedly connected to the anchor rod body 1, the surface of the mounting plate 501 is rotatably connected to a rotating shaft 502, the surface of the rotating shaft 502 is fixedly sleeved with a connecting plate 503, and the end of the connecting plate 503 is fixedly connected to a tooth plate 504. It should be noted that the rotating shaft 502 is driven to rotate by the linkage assembly 6, thereby driving the connecting plate 503 and the tooth plate 504 to rotate, so that the tooth plate 504 clamps the inner wall of the preset hole, thereby limiting the position of the anchor rod as a whole.

[0028] The linkage assembly 6 includes a fixed sleeve 601, and the fixed sleeve 601 is fixedly connected to the anchor rod body 1, a sliding rod 602 is movably inserted into the inner wall of the fixed sleeve 601, and one end of the sliding rod 602 is fixedly connected to the retaining ring 302, a convex tooth 603 is fixedly connected to the surface of the sliding rod 602, and a gear 604 is fixedly sleeved on the surface of the rotating shaft 502, and the gear 604 is meshed with the convex tooth 603. More specifically, when the retaining ring 302 moves, it will push the sliding rod 602 to slide along the inner wall of the fixed sleeve 601, thereby driving the convex tooth 603 to move, and the convex tooth 603 will push the gear 604 to rotate, thereby controlling the rotation of the rotating shaft 502.

[0029] There are two sets of limit assemblies 5 and linkage assemblies 6, and the two sets of limit assemblies 5 and linkage assemblies 6 are symmetrically arranged. It should be noted that by symmetrically arranging the two sets of limit assemblies 5 and linkage assemblies 6, the inner wall of the preset hole is clamped and limited at two positions, so that the grouting process of the anchor body 1 is more stable.

[0030] In summary: the anchor body 1 and the anchor head 2 are inserted into the preset hole, and the grouting assembly 3 is controlled to move by the driving mechanism 4 so that the grouting assembly 3 is in a conducting state, and the grouting assembly 3 can be used for grouting. During the movement of the grouting assembly 3, the linkage assembly 6 will be driven to run. Under the driving action of the linkage assembly 6, the limiting assembly 5 is operated to tighten and fix the inner wall of the preset hole, thereby limiting the anchor body 1. During use, the effect of effectively limiting the grouting anchor is achieved, and the shaking of the anchor in the hole during the grouting process is avoided, thereby ensuring the stability of the anchor.

[0031] The above shows and describes the basic principle, 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 the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hollow grouting anchor with a limiting device, characterized in that: The invention comprises an anchor rod body (1), the left end of which is fixedly connected to an anchor head (2), the surface of the anchor rod body (1) is provided with a grouting assembly (3) for slurry to pass through, the surface of the anchor rod body (1) is installed with a driving mechanism (4) for controlling the operation of the grouting assembly (3), the surface of the anchor rod body (1) is also provided with a limit assembly (5), and the surface of the grouting assembly (3) is connected with a linkage assembly (6) for controlling the operation of the limit assembly (5).

2. A hollow grouting anchor with a limiting device according to claim 1, characterized in that: The grouting assembly (3) comprises a grouting hole (301), and the grouting hole (301) is opened on the surface of the anchor rod body (1), and a retaining ring (302) is slidably connected to the surface of the anchor rod body (1).

3. A hollow grouting anchor with a limiting device according to claim 2, characterized in that: The driving mechanism (4) comprises a first fixing bar (401) and a second fixing bar (404), and the first fixing bar (401) and the second fixing bar (404) are both fixedly connected to the surface of the anchor rod body (1); a threaded column (402) is threadedly connected to the surface of the first fixing bar (401), and the end of the threaded column (402) is rotatably connected to the retaining ring (302); the other end of the threaded column (402) is fixedly connected to a turntable (403); the inner wall of the second fixing bar (404) is slidably connected to a connecting rod (405), and the end of the connecting rod (405) is fixedly connected to the retaining ring (302).

4. A hollow grouting anchor with a limiting device according to claim 2, characterized in that: The limiting assembly (5) comprises a mounting plate (501), and the mounting plate (501) is fixedly connected to the anchor rod body (1); the surface of the mounting plate (501) is rotatably connected to a rotating shaft (502); the surface of the rotating shaft (502) is fixedly sleeved with a connecting plate (503); and the end of the connecting plate (503) is fixedly connected to a tooth plate (504).

5. A hollow grouting anchor with a limiting device according to claim 4, characterized in that: The linkage assembly (6) comprises a fixing sleeve (601), and the fixing sleeve (601) is fixedly connected to the anchor rod body (1); a sliding rod (602) is movably inserted into the inner wall of the fixing sleeve (601), and one end of the sliding rod (602) is fixedly connected to the retaining ring (302); a convex tooth (603) is fixedly connected to the surface of the sliding rod (602); a gear (604) is fixedly sleeved on the surface of the rotating shaft (502), and the gear (604) is meshed with the convex tooth (603).

6. A hollow grouting anchor with a limiting device according to claim 5, characterized in that: The number of the position-limiting components (5) and the linkage components (6) is two groups, and the two groups of position-limiting components (5) and linkage components (6) are symmetrically arranged in the upper and lower parts.

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