Grouting anchor cable for roadway support

Abstract

The utility model discloses a grouting anchor cable for roadway support, including support disc, hinged groove and check claw. The grouting anchor cable for roadway support, the equidistance is equipped with support disc on anchor cable, and the hinged groove is opened to the circumference on support disc, and one pivot is fixedly connected in hinged groove, and one check claw is rotatably connected on pivot, and the one end of check claw and pivot is connected and is opened to install the cavity, and the torsional spring of setting up in the outside of pivot is equipped in install the cavity, and one end of torsional spring and the inner wall of hinged groove is fixedly connected, and the other end of torsional spring and the inner wall of hinged groove is fixedly connected, and the other end of torsional spring and the inner wall of install the cavity is fixedly connected, and the slope for check claw spacing is equipped on hinged groove, and the anchor cable is supported in the circumference through support disc, and the stability of anchor cable whole is improved, and the resettable rotation of check claw is cooperated, and after the anchor cable whole inserts anchor hole, and check claw leans on the inner wall of anchor hole, thereby can form the effect of preventing the effect of falling out, and avoid that anchor cable separates from anchor hole.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable technology, specifically a grouting anchor cable for roadway support. Background Technology

[0002] In coal mine roadways, anchor cables need to be installed to improve the stability of the support. During the installation process, in order to prevent the anchor cables from twisting or bending during placement, the anchor cables and grouting pipes are placed into the hole together, and then grout is injected through the grouting pipes to fix the position of the anchor cables.

[0003] A search revealed a patent document with publication number CN 217107079 U, which discloses a grouting anchor cable for coal mine roadway support, relating to the field of anchor cable technology. The cable includes a baffle plate, with multiple anchor cable bodies arranged on one side of the baffle plate. One end of each anchor cable body penetrates one side of the baffle plate and extends to the other side. An anchor is provided on one side of the baffle plate outside each anchor cable body, and a clamp is provided on one side of the anchor is on the other side of the baffle plate outside each anchor cable body. A sealing gasket is installed on the other side of the baffle plate outside each anchor cable body. This invention, through the presence of an installation ring, allows the three anchor cable bodies to be interconnected in a hole after being connected to a grouting pipe. The threaded connection between the screw and the fixing block allows the three anchor cable bodies to form a unified whole, resembling a triangular structure. This structure offers good stability, reduces the likelihood of twisting or bending, and minimizes the impact of the grouting pipe on the anchor cable body during grouting.

[0004] While the existing technology mentioned above achieves structural reinforcement, during use, the overall anchor cable is prone to being pushed out of the anchor hole by the grout during grouting, causing slippage. Therefore, a grouting anchor cable for roadway support is proposed to optimize the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a grouting anchor cable for roadway support to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A grouting anchor cable for roadway support includes a baffle plate with an anchor cable passing through its circumference. The anchor cable has an end cap connected to its front end. Support plates are evenly spaced on the anchor cable, and each support plate has a circumferentially formed fixing hole for the anchor cable to pass through. The anchor cable passes through the support plate and is welded to it. A hinge groove is formed on the circumference of the support plate, and a rotating shaft is fixedly connected within the hinge groove. A check pawl is rotatably connected to the rotating shaft. An installation cavity is formed at one end of the check pawl connected to the rotating shaft. A torsion spring is sleeved on the outside of the rotating shaft within the installation cavity. One end of the torsion spring is fixedly connected to the inner wall of the hinge groove, and the other end is fixedly connected to the inner wall of the installation cavity. A ramp is provided on the hinge groove for limiting the check pawl's position. A primary grouting pipe and a secondary grouting pipe are fixedly connected through the middle of the support plate, and both the primary and secondary grouting pipes have holes.

[0008] As a further embodiment of this utility model: the end is tapered, and a connecting part is fixedly connected to the tail end of the end. An avoidance groove is provided at the connection between the connecting part and the end. After the anchor cable passes through the connecting part, a fixing block is welded on it, and the anchor cable is welded and fixed to the connecting part.

[0009] As a further improvement of this utility model: the front end of the anchor cable is provided with an anchoring section, and metal cable ties are tied between two adjacent support plates on the anchoring section.

[0010] As a further improvement of this utility model: a sealing gasket is installed on one side of the baffle, and a grout stopper is connected to the sealing gasket.

[0011] As a further improvement of this utility model: an anchor is provided on the other side of the baffle, and the anchor cable passes through the anchor and is connected to a clamp.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a support plate to support the anchor cable in a circular shape, which improves the overall stability of the anchor cable. With the help of a reversible and rotatable anti-reverse claw, after the anchor cable is inserted into the anchor hole, the anti-reverse claw abuts against the inner wall of the anchor hole, thereby forming an anti-loosening effect and preventing the anchor cable from coming out of the anchor hole.

[0014] 2. This utility model uses metal cable ties to bind the anchor cable of the anchoring section as a whole to form a corrugated section, which makes it easier for the surface to be more tightly connected with the solidified concrete after grouting and also provides pull-out resistance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a grouting anchor cable used for tunnel support.

[0016] Figure 2 This is a diagram illustrating the support plate in a grouting anchor cable used for tunnel support.

[0017] Figure 3 This is a cross-sectional view of the hinged groove in a grouting anchor cable used for roadway support.

[0018] In the diagram: 1. Baffle; 2. Anchor cable; 3. End; 4. Support plate; 5. Clamping piece; 6. Hinge groove; 7. Rotating shaft; 8. Anti-reverse claw; 9. Installation cavity; 10. Torsion spring; 11. Slope; 12. Connecting part; 13. Clearance groove; 14. Fixing block; 15. Anchoring section; 16. Metal cable tie; 17. Primary grouting pipe; 18. Secondary grouting pipe; 19. Sealing gasket; 20. Grout stop plug; 21. Anchorage. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Please see Figures 1-3 In this embodiment of the utility model, a grouting anchor cable for roadway support includes a baffle 1, with an anchor cable 2 passing through its circumference. The front end of the anchor cable 2 is connected to an end 3. Support plates 4 are evenly spaced on the anchor cable 2. Fixing holes for the anchor cable 2 to pass through are formed on the circumference of the support plates 4. The anchor cable 2 passes through the support plates 4 and is welded to them. A hinge groove 6 is formed on the circumference of the support plates 4. A rotating shaft 7 is fixedly connected within the hinge groove 6. A check pawl 8 is rotatably connected to the rotating shaft 7. An installation cavity 9 is formed at the end of the check pawl 8 connected to the rotating shaft 7. Inside the 9, there is a torsion spring 10 sleeved on the outside of the rotating shaft 7. One end of the torsion spring 10 is fixedly connected to the inner wall of the hinge groove 6, and the other end of the torsion spring 10 is fixedly connected to the inner wall of the hinge groove 6. The other end of the torsion spring 10 is fixedly connected to the inner wall of the mounting cavity 9. The hinge groove 6 is provided with a ramp 11 for limiting the anti-reverse claw 8. The anti-reverse claw 8 is limited by the ramp groove 11 to maintain a certain opening and closing angle. The middle part of the support plate 4 is fixedly connected to the primary grouting pipe 17 and the secondary grouting pipe 18. Holes are opened on both the primary grouting pipe 17 and the secondary grouting pipe 18.

[0021] The anchor cable 2 is supported in a circular shape by the support plate 4, which improves the overall stability of the anchor cable. With the resettable and rotatable anti-reverse claw 8, after the anchor cable 2 is fully inserted into the anchor hole, the anti-reverse claw 8 abuts against the inner wall of the anchor hole, which can form an anti-loosening effect and prevent the anchor cable 2 from coming out of the anchor hole.

[0022] The end 3 is tapered, and the tail end of the end 3 is fixedly connected to the connecting part 12. The connection between the connecting part 12 and the end 3 is provided with a relief groove 13. The anchor cable 2 passes through the connecting part 12 and is welded with a fixing block 14. The anchor cable 2 is welded and fixed to the connecting part 12.

[0023] End 3 is connected to anchor cable 2 through connecting part 12. Anchor cable 2 passes through fixed connecting part 12 and is prevented from detaching by fixing block 14, thereby effectively preventing end 3 from detaching from anchor cable 2.

[0024] An anchor section 15 is provided at the front end of the anchor cable 2, and metal cable ties 16 are tied between two adjacent support plates 4 on the anchor section 15.

[0025] The anchor cable 2 of the anchoring section 15 is bundled together by metal cable ties 16 to form a corrugated section, which allows the cable to be more tightly connected to the solidified concrete after grouting and provides pull-out resistance.

[0026] A sealing gasket 19 is installed on one side of the baffle 1, and a grout stop plug 20 is connected to the sealing gasket 19.

[0027] An anchor 21 is provided on the other side of the baffle 1, and the anchor cable 2 passes through the anchor 21 and is connected to the wedge 5.

[0028] The anchor hole is sealed by the sealing gasket 19 and the grout stopper 20 in conjunction with the baffle 1. The anchor 21 and the clamp 5 are used to form tension and fix the anchor cable 2, thereby making the anchor hole tightly sealed.

[0029] The working principle of this utility model is as follows:

[0030] In use, the anchor cable 2 is assembled and inserted into the anchor hole as a whole. During insertion, the inner wall of the anchor hole presses against the anti-reverse claw 8, causing the anti-reverse claw 8 to deflect, allowing the anchor cable 2 to be continuously inserted. After insertion, the anti-reverse claw 8 unfolds under the action of the torsion spring 10 and fits against the inner wall of the anchor hole, thus achieving the anti-reverse effect. At this time, grouting can be performed through the primary grouting pipe 17 and the secondary grouting pipe 18.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grouting anchor cable for roadway support, comprising a baffle (1), characterized in that: An anchor cable (2) is circumferentially inserted through the baffle (1). The front end of the anchor cable (2) is connected to an end (3). Support plates (4) are provided at equal intervals on the anchor cable (2). The support plates (4) have fixing holes for the anchor cable (2) to pass through. After the anchor cable (2) passes through the support plate (4), it is welded and fixed to the support plate (4). The support plate (4) has a hinge groove (6) circumferentially inserted. A rotating shaft (7) is fixedly connected in the hinge groove (6). A check pawl (8) is rotatably connected to the rotating shaft (7). The end of the check pawl (8) connected to the rotating shaft (7) has an installation cavity (9). The mounting cavity (9) is provided with a torsion spring (10) sleeved on the outside of the rotating shaft (7). One end of the torsion spring (10) is fixedly connected to the inner wall of the hinge groove (6), and the other end of the torsion spring (10) is fixedly connected to the inner wall of the hinge groove (6). The hinge groove (6) is provided with a ramp (11) for limiting the anti-reverse claw (8). The middle part of the support plate (4) is fixedly connected with a primary grouting pipe (17) and a secondary grouting pipe (18). Holes are opened on both the primary grouting pipe (17) and the secondary grouting pipe (18).

2. The grouting anchor cable for roadway support according to claim 1, characterized in that: The end (3) is tapered, and a connecting part (12) is fixedly connected to the tail end of the end (3). A relief groove (13) is provided at the connection between the connecting part (12) and the end (3). After the anchor cable (2) passes through the connecting part (12), a fixing block (14) is welded on it. The anchor cable (2) is welded to the connecting part (12) for fixation.

3. The grouting anchor cable for roadway support according to claim 1, characterized in that: The anchor cable (2) has an anchoring section (15) at its front end, and metal cable ties (16) are tied between two adjacent support plates (4) on the anchoring section (15).

4. The grouting anchor cable for roadway support according to claim 1, characterized in that: A sealing gasket (19) is installed on one side of the baffle (1), and a grout stopper (20) is connected to the sealing gasket (19).

5. A grouting anchor cable for roadway support according to claim 1, characterized in that: An anchor (21) is provided on the other side of the baffle (1), and the anchor cable (2) passes through the anchor (21) and is connected to the clamp (5).

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