Grouting anchor cable with automatic hole sealing function

Abstract

The utility model belongs to the field of grouting anchor cables, and particularly relates to an automatic hole sealing grouting anchor cable which comprises a cable rod, an inflation pipe is fixedly connected in the cable rod, the lower end of the inflation pipe is fixedly connected with a conical head, an inflation sealing mechanism is arranged in the inflation pipe, a grouting pipe is fixedly connected in the cable rod, and the lower end of the grouting pipe is fixedly connected with the conical head. An expansion pipe is fixedly connected to the lower portion of the outer side of the inflation pipe, an air nozzle is fixedly connected to the interior of the expansion pipe, and a baffle is fixedly connected to the upper portion of the outer side of the cable rod. The inflation pipe, the expansion pipe, the inflation sealing mechanism and other structures are additionally arranged on the cable rod, in the using process, after the cable rod is inserted into the hole, the inflation pipe is inflated, the expansion pipe is expanded, the bottom of the hole can be plugged after the expansion pipe is expanded, slurry is injected into the cable rod after plugging, and the hole is sealed through the inflation sealing mechanism. Therefore, the injected slurry is effectively prevented from flowing away through the crack.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting anchor cables, in particular to a grouting anchor cable with automatic hole sealing. Background Art

[0002] According to the utility model patent with the patent authorization announcement number CN217925946U, a hollow grouting anchor cable with automatic hole sealing is proposed, which includes a cable body, a grouting pipe and a hole sealing component. The grouting pipe is arranged in the cable body, and the hole sealing component is fixedly sleeved on the outside of the cable body. The hole sealing component includes an annular shell, an annular slide plate, a sliding rod, an extrusion ring and an annular plugging block. The annular shell is sleeved on the outside of the cable body, and an outer sealing pipe is arranged between the inner walls of the two ends of the annular shell and the cable body, and an inner sealing pipe corresponding to the two ends of the annular shell is arranged between the cable body and the grouting pipe. The patent uses the hole sealing component to push the annular slide plate to move by the pressure of the slurry when grouting through the grouting pipe, thereby opening the through hole to grout the borehole, and at the same time, the extrusion ring is driven to move by the moving rod, so that the annular plugging block expands and deforms, and the borehole is automatically sealed.

[0003] However, during the use, grouting is performed inside the sealing hole where the anchor cable is located, and then the dried slurry is passed through. However, cracks are easily generated inside the mountain of some karst caves. During the grouting process, the slurry is easy to flow through the gaps, resulting in a waste of raw materials and unstable installation of the anchor cable. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0004] The utility model aims to provide a grouting anchor cable with automatic hole sealing, which solves the problems that cracks easily lead to leakage of raw materials and inconvenience in installing the anchor cable.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic hole-sealing grouting anchor cable, comprising a cable rod, an inflation tube is fixedly connected to the interior of the cable rod, a conical head is fixedly connected to the lower end of the inflation tube, an inflation sealing mechanism is arranged inside the inflation tube, a grouting tube is fixedly connected to the interior of the cable rod, an expansion tube is fixedly connected to the lower outer portion of the inflation tube, an air nozzle is fixedly connected to the interior of the expansion tube, a baffle is fixedly connected to the upper outer portion of the cable rod, an end cap is threadedly connected to the interior of the upper end of the cable rod, and a sealing cap is threadedly connected to the interior of the upper end of the inflation tube.

[0006] Preferably, there are multiple grouting pipes, which are evenly distributed on the cable rod and located on the outside of the cable rod. After the grouting is cured, the surface roughness of the cable rod can be increased by the multiple grouting pipes, which can make the installation of the cable rod more stable.

[0007] Preferably, the air nozzle is fixedly connected to the inflation tube, the expansion tube is in contact with both the cable rod and the conical head, and the expansion tube is made of a rubber material, which has good elasticity and can be expanded within a certain range.

[0008] Preferably, a hexagonal block is provided at the upper end of the sealing cover, and a connecting ring is fixedly connected to the upper end of the end cover, and the sealing cover can be driven to rotate by the hexagonal block.

[0009] Preferably, the inflation sealing mechanism includes a horizontal bar, the lower portion of the inner wall of the inflation tube is fixedly connected with the horizontal bar, a reset pin is slidably connected inside the horizontal bar, a spring is provided on the outer side of the reset pin, a sealing block is fixedly connected to the lower end of the reset pin, a sealing ring is fixedly connected to the lower portion of the inner wall of the inflation tube, and the sealing block can seal the inflation tube through the sealing ring.

[0010] Preferably, the sealing ring is slidably connected to the sealing block, one end of the spring is fixedly connected to the reset pin, and the other end of the spring is fixedly connected to the cross bar, and the spring can drive the sealing block to automatically reset through elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as an air-filling tube, an expansion tube and an air-filling sealing mechanism to the cable rod. During use, the cable rod is inserted into the hole, and then air is inflated into the air-filling tube to expand the expansion tube. After the expansion tube expands, the bottom of the hole can be blocked. After blocking, slurry is injected into the cable rod, thereby effectively preventing the injected slurry from being lost through cracks or caves.

[0013] 2. The utility model adds structures such as a conical head and a grouting tube to the cable rod. The conical head can facilitate the insertion of the cable rod into the hole. After the grouting is completed, the dry slurry can wrap the cable rod and the grouting tube. The grouting tube is located on the outside of the cable rod and can block the cable rod, thereby making the installation of the cable rod more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of the overall structure of the utility model.

[0015] Figure 2 For the utility model Figure 1 A three-dimensional cross-sectional view of .

[0016] Figure 3 For the utility model Figure 2 A-section structure enlarged view.

[0017] Figure 4 For the utility model Figure 2Enlarged view of the structure of part B.

[0018] In the figure: 1. cable rod; 2. inflation tube; 3. conical head; 4. inflation sealing mechanism; 5. grouting tube; 6. expansion tube; 7. air nozzle; 8. baffle; 9. end cover; 10. sealing cover; 11. connecting ring; 41. horizontal bar; 42. reset pin; 43. spring; 44. sealing block; 45. sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 4 A grouting anchor cable with automatic sealing includes a cable rod 1, an air filling tube 2 is fixedly connected inside the cable rod 1, a conical head 3 is fixedly connected to the lower end of the air filling tube 2, an air filling sealing mechanism 4 is arranged inside the air filling tube 2, a grouting tube 5 is fixedly connected inside the cable rod 1, an expansion tube 6 is fixedly connected to the lower outer side of the air filling tube 2, an air nozzle 7 is fixedly connected to the inside of the expansion tube 6, a baffle 8 is fixedly connected to the upper outer side of the cable rod 1, an end cover 9 is threadedly connected to the upper end of the cable rod 1, and a sealing cover 10 is threadedly connected to the upper end of the air filling tube 2.

[0021] See also Figure 1 , Figure 2 , Figure 4 There are multiple grouting pipes 5, which are evenly distributed on the cable rod 1. Multiple grouting pipes 5 are located on the outside of the cable rod 1. After the grouting is cured, the surface roughness of the cable rod 1 can be increased by multiple grouting pipes 5, which can make the installation of the cable rod 1 more stable. The air nozzle 7 is fixedly connected to the inflation tube 2, and the expansion tube 6 is in contact with both the cable rod 1 and the conical head 3. The expansion tube 6 is made of rubber material, and the rubber material has good elasticity and can be expanded within a certain range. A hexagonal block is provided on the upper end of the sealing cover 10, and a connecting ring 11 is fixedly connected to the upper end of the end cover 9, and the sealing cover 10 can be driven to rotate by the hexagonal block.

[0022] See also Figure 1 , Figure 2 , Figure 3The inflation sealing mechanism 4 includes a horizontal bar 41, and the horizontal bar 41 is fixedly connected to the lower part of the inner wall of the inflation tube 2. A reset pin 42 is slidably connected inside the horizontal bar 41. A spring 43 is arranged on the outer side of the reset pin 42. A sealing block 44 is fixedly connected to the lower end of the reset pin 42. A sealing ring 45 is fixedly connected to the lower part of the inner wall of the inflation tube 2. The sealing block 44 can seal the inflation tube 2 through the sealing ring 45. The sealing ring 45 is slidably connected to the sealing block 44. One end of the spring 43 is fixedly connected to the reset pin 42, and the other end of the spring 43 is fixedly connected to the horizontal bar 41. The spring 43 can drive the sealing block 44 to automatically reset through elastic force.

[0023] The specific implementation process of the utility model is as follows: when in use, the cable rod 1 is inserted into the inside of the hole, and then the inside of the inflation tube 2 is inflated through the air pump. During the inflation process, the internal air pressure of the inflation tube 2 increases. When the thrust of the air pressure on the sealing block 44 is greater than the elastic force of the spring 43, the sealing block 44 is separated from the sealing ring 45, and then the air flow enters the inside of the expansion tube 6 through the air nozzle 7 to expand the expansion tube 6. After the expansion of the expansion tube 6, the surrounding holes can be blocked. When the blocking force is moderate, the inflation is stopped. After the inflation is stopped, the air pump is separated from the inflation tube 2, the pressure inside the inflation tube 2 disappears, and the spring 43 is reset. The spring 43 can drive the sealing block 44 to reset through the elastic force. The sealing block 44 can block the inflation tube 2 through the sealing ring 45, thereby preventing the slurry inside the hole from leaking.

[0024] After the hole is sealed, grouting is performed into the interior of the cable rod 1. During the grouting process, the slurry can be injected into the interior of the hole through the grouting pipe 5. After the slurry dries, the cable rod 1 and the grouting pipe 5 can be wrapped with the slurry. At the same time, the slurry inside the hole and the slurry inside the grouting pipe 5 become a whole after drying, which can effectively improve the connection strength between the cable rod 1 and the hole.

Claims

1. A grouting anchor cable with automatic hole sealing, comprising a cable rod (1), characterized in that: The interior of the cable rod (1) is fixedly connected to an inflation tube (2), the lower end of the inflation tube (2) is fixedly connected to a conical head (3), an inflation sealing mechanism (4) is provided inside the inflation tube (2), the interior of the cable rod (1) is fixedly connected to a grouting tube (5), the lower outer portion of the inflation tube (2) is fixedly connected to an expansion tube (6), the interior of the expansion tube (6) is fixedly connected to an air nozzle (7), the upper outer portion of the cable rod (1) is fixedly connected to a baffle (8), the interior of the upper end of the cable rod (1) is threadedly connected to an end cap (9), and the interior of the upper end of the inflation tube (2) is threadedly connected to a sealing cap (10).

2. The automatic hole-sealing grouting anchor cable according to claim 1, characterized in that: The number of the grouting pipes (5) is multiple, and the multiple grouting pipes (5) are evenly distributed on the cable rod (1).

3. The automatic hole-sealing grouting anchor cable according to claim 1, characterized in that: The air nozzle (7) is fixedly connected to the inflation tube (2), the expansion tube (6) is in contact with both the cable rod (1) and the conical head (3), and the expansion tube (6) is made of rubber material.

4. The automatic hole-sealing grouting anchor cable according to claim 1, characterized in that: A hexagonal block is provided at the upper end of the sealing cover (10), and a connecting ring (11) is fixedly connected to the upper end of the end cover (9).

5. The automatic hole-sealing grouting anchor cable according to claim 1, characterized in that: The inflation sealing mechanism (4) comprises a horizontal bar (41), the lower portion of the inner wall of the inflation tube (2) is fixedly connected to the horizontal bar (41), a reset pin (42) is slidably connected inside the horizontal bar (41), a spring (43) is arranged on the outer side of the reset pin (42), a sealing block (44) is fixedly connected to the lower end of the reset pin (42), and a sealing ring (45) is fixedly connected to the lower portion of the inner wall of the inflation tube (2).

6. The automatic hole-sealing grouting anchor cable according to claim 5, characterized in that: The sealing ring (45) is slidably connected to the sealing block (44), one end of the spring (43) is fixedly connected to the reset pin (42), and the other end of the spring (43) is fixedly connected to the horizontal bar (41).

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