A guide cap for an anchor cable

Abstract

The utility model relates to the technical field of anchor cable guiding, specifically a guiding cap for anchor cable, which comprises a straight cylinder, a limiting cylinder connected to the inside of the straight cylinder through screw threads, an anti-skid groove provided on the outer surface of the limiting cylinder, a hollow sphere fixedly connected to one end of the straight cylinder, an outer cone fixedly connected to the outer surface of the hollow sphere, a limiting mechanism placed in the inside of the hollow sphere, and the limiting mechanism comprising a connecting column, a variable-diameter hole and a connecting groove, the connecting column being placed in the inside of the straight cylinder with one end inserted into the hollow sphere, the variable-diameter hole being provided at one end of the connecting column, and the connecting groove being provided at the other end of the connecting column. In the utility model, the straight cylinder is guided in cooperation with the hollow sphere during the process of being inserted into a drilled hole, further avoiding the difficulty of being easily inserted into the soil wall when encountering a curved drilled hole, and the connecting column limits the inner cone, the inner cone supports the outer cone, further reinforcing the outer cone, and the anchor cable is inserted into the variable-diameter hole, and the connection between the anchor cable and the device is quickly completed with the decrease of the diameter of the variable-diameter hole.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable guidance technology, specifically an anchor cable guide cap. Background Technology

[0002] An anchor cable guide cap is used in anchor cable construction. In slope construction projects, anchor cables are often used to apply prestress to potential slip surfaces to improve the overall stability of the surrounding rock. During construction, the anchor cable and the anchor cable guide cap at the end are first pushed into a pre-drilled deep hole, followed by subsequent processes such as grouting and tensioning. Some technical solutions have also emerged in the prior art, such as the announcement number: CN217517564U, which describes a new type of anchor cable and an anchor cable guide cap, including a hollow conical body. An anchor cable connection mechanism is provided in the hollow conical body. An elastic fastening neck that extends backward and is recessed inward is integrally provided at the rear end of the hollow conical body. An anchor protective sleeve that extends backward is integrally provided at the rear end of the elastic fastening neck. The bottom diameter of the hollow conical body is larger than the diameter of the anchor protective sleeve.

[0003] The device is equipped with spikes at the end, and the friction point and several friction rings generate a large friction force with the solidified cement slurry, which makes the anchor cable guide cap have a stronger load capacity. However, the front cone angle of the anchor cable guide cap is small. When encountering soft soil, broken rock or falling blocks of the hole wall, the tip is very easy to penetrate the hole wall, causing the hole to get stuck or the drill to get stuck. In addition, the traditional anchor cable guide cap is usually fixed to the anchor cable by threaded components or welding, which is more difficult to install for multiple anchor cables, and special welding equipment is required on site. Utility Model Content

[0004] The purpose of this invention is to provide a guide cap for anchor cables to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anchor cable guide cap includes a straight cylinder with a limit cylinder connected to its internal thread. The limit cylinder has an anti-slip groove on its outer surface, which can increase friction when the limit cylinder is manually rotated.

[0007] A hollow sphere is fixedly connected to one end of the straight cylinder. An outer cone is fixedly connected to the outer surface of the hollow sphere. The outer cone is used to assist in breaking the soil at the end. A limiting mechanism is placed inside the hollow sphere to limit the anchor cable. The limiting mechanism includes a connecting column, a variable diameter hole, and a connecting groove. The connecting column is placed inside the straight cylinder, with one end inserted into the hollow sphere. The variable diameter hole is opened at one end of the connecting column, and the connecting groove is opened at the other end of the connecting column.

[0008] Furthermore, a reinforcing plate is fixedly connected inside the outer cone, and an inner cone is placed inside the outer cone.

[0009] Furthermore, the outer surface of the inner cone has a through groove, and the inner cone is connected to the reinforcing plate through the through groove, thereby increasing the internal support area of ​​the outer cone and improving the strength of the outer cone.

[0010] Furthermore, the connecting groove and the inner cone are matched to limit the inner cone and prevent it from falling into the hollow sphere.

[0011] Furthermore, the diameter of the variable-diameter hole decreases from large to small, which facilitates the application of inward force to the anchor cable as it is inserted deeper.

[0012] Furthermore, the limiting cylinder and the straight cylinder are detachably connected by threads.

[0013] Furthermore, the hollow sphere, outer cone, and limiting mechanism are arranged coaxially.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The hollow sphere has a larger arc surface, while the outer cone is smaller. This avoids the outer cone from directly inserting into the soft soil or broken rock of the borehole wall, which could cause the anchor cable to get stuck and lead to pushing failure. When the borehole wall is not straight, the straight cylinder works with the hollow sphere to guide the cable during the drilling process, further avoiding the problem of easy insertion into the borehole wall soil when the borehole is curved. In addition, the connecting column limits the inner cone, and the inner cone provides internal support for the outer cone, further reinforcing the outer cone.

[0016] 2. When the anchor cable is inserted, it is inserted into the reducing hole. As the diameter of the reducing hole decreases, a compressive force is applied to the anchor cable, which fixes the anchor cable to the connecting column. It can also limit the other end of the inner cone through the connecting groove, quickly completing the connection between the anchor cable and the device. In addition, the limiting mechanism, the inner cone and the limiting cylinder provide internal support for the straight cylinder, improving the overall strength of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the straight cylindrical cross-sectional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the outer cone structure of this utility model.

[0021] In the diagram: 1. Straight cylinder; 2. Hollow sphere; 3. Outer cone; 301. Reinforcing plate; 4. Limiting mechanism; 401. Connecting column; 402. Variable diameter hole; 403. Connecting groove; 5. Inner cone; 501. Through groove; 6. Limiting cylinder; 601. Anti-slip groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 In this embodiment of the utility model, a straight cylinder 1 is included, and a limiting cylinder 6 is connected to the inside of the straight cylinder 1 by a thread. An anti-slip groove 601 is provided on the outer surface of the limiting cylinder 6.

[0024] A hollow sphere 2 is fixedly connected to one end of a straight cylinder 1. An outer cone 3 is fixedly connected to the outer surface of the hollow sphere 2. A limiting mechanism 4 is placed inside the hollow sphere 2. The limiting mechanism 4 includes a connecting post 401, a variable diameter hole 402, and a connecting groove 403. The connecting post 401 is placed inside the straight cylinder 1, and one end is inserted into the hollow sphere 2. The variable diameter hole 402 is opened at one end of the connecting post 401, and the connecting groove 403 is opened at the other end of the connecting post 401.

[0025] Specifically, this device is responsible for smoothly, quickly, and without damage pushing the anchor cable into the pre-drilled hole. The straight cylinder 1, together with the limiting cylinder 6 and the guide plate 5, installs the anchor cable. When entering the hole, the hollow sphere 2 has a larger arc surface, while the outer cone 3 is smaller, which can prevent the outer cone 3 from directly inserting into the soft soil or broken rock of the hole wall, causing the anchor cable to get stuck and resulting in pushing failure. When the hole wall is not straight, the straight cylinder 1, together with the hollow sphere 2, guides the cable during the process of entering the hole, further avoiding the problem of easy insertion into the hole wall soil when the hole is curved. The connecting column 401 limits the inner cone 5, and the inner cone 5 provides internal support for the outer cone 3, further reinforcing the outer cone 3.

[0026] Example 1

[0027] like Figure 1-4 As shown, a reinforcing plate 301 is fixedly connected inside the outer cone 3, and an inner cone 5 is placed inside the outer cone 3. A through groove 501 is opened on the outer surface of the inner cone 5. The inner cone 5 is engaged with the reinforcing plate 301 through the through groove 501. The limiting cylinder 6 and the straight cylinder 1 are detachably connected by threads.

[0028] In this embodiment, the reinforcing plate 301 extends along the generatrix of the outer cone 3, and its end is welded and fixed to the inner wall of the hollow sphere 2 to form a triangular support structure. When the limiting cylinder 6 is tightened and the connecting column 401 is squeezed, the reinforcing plate 301 of the through groove 501 is engaged and fixed to prevent the outer cone 3 from cracking due to local stress deformation when passing through the broken rock layer.

[0029] Example 2

[0030] Based on Example 1, in order to overcome the problem of inconvenience in installing and limiting the anchor cable in Example 1.

[0031] like Figure 1-4 As shown, the connecting groove 403 and the inner cone 5 are matched, the diameter of the variable diameter hole 402 decreases from large to small, and the hollow sphere 2, the outer cone 3 and the limiting mechanism 4 are arranged coaxially.

[0032] In this embodiment, when the anchor cable is inserted, it is inserted into the reducing hole 402. As the diameter of the reducing hole 402 decreases, a compressive force is applied to the anchor cable, which fixes the anchor cable with the connecting post 401. The connecting groove 403 can also limit the other end of the inner cone 5, quickly completing the connection between the anchor cable and the device. In addition, the limiting mechanism 4, the inner cone 5, and the limiting cylinder 6 provide internal support for the straight cylinder 1, improving the overall strength of the device.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A guide cap for anchor cables, comprising a straight cylinder (1), wherein a limiting cylinder (6) is internally threadedly connected to the straight cylinder (1), and an anti-slip groove (601) is provided on the outer surface of the limiting cylinder (6). Its features are, A hollow sphere (2) is fixedly connected to one end of the straight cylinder (1), and an outer cone (3) is fixedly connected to the outer surface of the hollow sphere (2). A limiting mechanism (4) is provided inside the straight cylinder (1) and the hollow sphere (2). The limiting mechanism (4) includes: The connecting column (401) is placed inside the straight cylinder (1), and one end is inserted into the hollow sphere (2); A variable diameter hole (402) is provided at one end of the connecting post (401); A connecting groove (403) is provided at the other end of the connecting post (401).

2. The guide cap for anchor cables according to claim 1, characterized in that, A reinforcing plate (301) is fixedly connected inside the outer cone (3), and an inner cone (5) is placed inside the outer cone (3).

3. A guide cap for anchor cables according to claim 2, characterized in that, The outer surface of the inner cone (5) is provided with a through groove (501), and the inner cone (5) is engaged with the reinforcing plate (301) through the through groove (501).

4. A guide cap for anchor cables according to claim 3, characterized in that, The connecting groove (403) and the inner cone (5) are matched.

5. A guide cap for anchor cables according to claim 1, characterized in that, The diameter of the variable diameter hole (402) decreases from large to small.

6. A guide cap for anchor cables according to claim 1, characterized in that, The limiting cylinder (6) and the straight cylinder (1) are detachably connected by threads.

7. A guide cap for anchor cables according to claim 1, characterized in that, The hollow sphere (2), the outer cone (3), and the limiting mechanism (4) are arranged coaxially.

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