Roadway long-hole isolated grouting device

Abstract

The utility model discloses a kind of roadway deep hole isolation grouting devices, it is related to deep hole grouting technical field, including grouting pipe, grouting pipe side is equipped with ribbed anchor rod, and ribbed anchor rod is spaced apart and provided with isolation mechanism, and first air pipe and second air pipe are connected on isolation mechanism, and isolation mechanism includes the isolation block being set on ribbed anchor rod, and inside isolation block is equipped with inner air bag, and outside isolation block is equipped with outer air bag, and arc spring is internally equipped in isolation block, and sealing plate is connected in arc spring tail end, and positioning mechanism is fixedly installed in isolation block bottom, and anchor rod hole is set in isolation block middle position, and reserved hole is set in anchor rod hole two sides, and butt joint is set in inner air bag and outer air bag, and one-way valve is equipped in butt joint, and first air pipe is connected on outer air bag by butt joint. The roadway deep hole isolation grouting device, by the cooperation of isolation mechanism and positioning mechanism, can be isolated grouting to deep hole, prevent the mortar sinking in deep hole, improve grouting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of deep hole grouting technology, specifically a deep hole isolation grouting device for roadways. Background Technology

[0002] Grouting anchoring is an engineering technique that reinforces soil or rock structures by injecting grout (cement-based or chemical grout) under high pressure. It is widely used in slope protection, tunnel reinforcement, and building foundation treatment. Its core process includes three steps: drilling, inserting reinforcing bars, and grouting. First, a hole is drilled in the soil or rock layer to the designed depth, and reinforcing bars or anchor cables are inserted. Then, grout is pumped into the hole using a grouting pump to fill the cracks and wrap the anchor rod. After hardening, a composite load-bearing structure is formed.

[0003] During the grouting and anchoring process at the top of a tunnel, a common problem arises: the mortar injected into the deep holes at the tunnel top tends to settle due to its own weight. This forces workers to repeatedly perform grouting operations to ensure that the deep holes at the tunnel top are fully filled with mortar. This repetitive work not only reduces grouting efficiency but also increases the labor intensity of the workers. Utility Model Content

[0004] The purpose of this invention is to provide a deep-hole isolation grouting device for roadways to solve the problem of low grouting efficiency in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep-hole isolation grouting device for roadways, comprising a grouting pipe, a ribbed anchor rod on one side of the grouting pipe, an isolation mechanism spaced apart on the ribbed anchor rod, a first air pipe and a second air pipe connected to the isolation mechanism, the isolation mechanism comprising an isolation block disposed on the ribbed anchor rod, an inner air bladder disposed inside the isolation block, an outer air bladder disposed outside the isolation block, an arc-shaped spring disposed inside the isolation block, a sealing plate connected to the end of the arc-shaped spring, and a positioning mechanism fixedly installed at the bottom of the isolation block.

[0006] Preferably, an anchor bolt hole is provided in the middle of the isolation block, and reserved holes are provided on both sides of the anchor bolt hole.

[0007] Preferably, both the inner and outer airbags are provided with a connection interface, and the connection interface is provided with a one-way valve. The first air tube is connected to the outer airbag through the connection interface, and the second air tube is connected to the inner airbag through the connection interface.

[0008] Preferably, the ribbed anchor rod passes through the isolation block through the anchor rod hole, the first air pipe and the second air pipe pass through the isolation block through a reserved hole on one side of the anchor rod hole, the grouting pipe passes through the isolation block through a reserved hole on the other side of the anchor rod hole, and a sliding groove is provided in the isolation block, so that the isolation block can be slidably installed in the isolation block through the sliding groove.

[0009] Preferably, the positioning mechanism includes a nail gun tube fixedly installed at the bottom of the isolation block, a steel nail inside the nail gun tube, a nail gun cartridge at one end of the nail gun tube, a mounting bracket fixedly installed at one end of the nail gun tube, a firing pin movably installed on the mounting bracket, a spring seat fixedly installed on the firing pin, a storage spring sleeved on the firing pin, and a pull rope at one end of the firing pin.

[0010] Preferably, the mounting bracket has a movable hole, through which the firing pin is movably mounted on the mounting bracket, and the firing pin is aligned front and back with the nail cartridge.

[0011] Preferably, one end of the energy storage spring is fixedly installed on the mounting bracket, the other end of the energy storage spring is fixedly installed on the spring seat, one end of the pull rope is fixedly installed on the firing pin, and the other end of the pull rope is fixedly installed on the ribbed anchor rod.

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

[0013] 1. In the operation of the rotating ribbed anchor bolt, this application utilizes a coiled rope to compress a storage spring. When the storage spring is compressed to a specific threshold, the rope breaks, releasing energy and driving a firing pin to strike a nail-firing cartridge. The firing energy of the cartridge further acts on the steel nail, causing it to deeply embed itself into the inner wall of the deep hole, thereby fixing the spacer blocks within the deep hole. This mechanism effectively divides the deep hole into multiple independent small spaces, facilitating isolation grouting operations. This not only prevents mortar settlement within the deep hole but also significantly improves the efficiency of grouting operations.

[0014] 2. In this application, after the grouting pipe is inserted into the deep hole, air is inflated into the outer air bladder through the first air pipe, causing the outer air bladder to expand. The expansion of the outer air bladder restricts the movement of the isolation block and seals the gap between the isolation block and the deep hole. After the isolation block is fixed in the deep hole, air is inflated into the inner air bladder through the second air pipe, causing the inner air bladder to expand and thereby seal the gap between the anchor bolt hole and the ribbed anchor bolt to prevent mortar leakage during grouting. After the grouting pipe and air pipe are pulled out, the arc spring will push the sealing plate to seal the reserved hole, preventing mortar from settling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the isolation mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0019] The diagram is labeled as follows: 1. First air pipe; 2. Second air pipe; 3. Grouting pipe; 4. Ribbed anchor bolt; 5. Isolation mechanism; 501. Isolation block; 502. Reserved hole; 503. Anchor bolt hole; 504. Inner airbag; 505. Outer airbag; 506. Arc spring; 507. Sealing plate; 6. Positioning mechanism; 601. Pull rope; 602. Mounting bracket; 603. Storage spring; 604. Spring seat; 605. Nail gun tube; 606. Steel nail; 607. Nail gun cartridge; 608. Impact pin. Detailed Implementation

[0020] 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.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a deep hole isolation grouting device for roadways, including a grouting pipe 3, a ribbed anchor rod 4 on one side of the grouting pipe 3, an isolation mechanism 5 spaced apart on the ribbed anchor rod 4, a first air pipe 1 and a second air pipe 2 connected to the isolation mechanism 5, and a positioning mechanism 6 fixedly installed at the bottom of the isolation block 501. Through the cooperation of the isolation mechanism 5 and the positioning mechanism 6, deep hole isolation grouting can be performed to prevent the mortar in the deep hole from sinking and improve the grouting efficiency.

[0022] like Figure 2 and Figure 3 As shown, the isolation mechanism 5 includes an isolation block 501 mounted on a ribbed anchor rod 4. An inner airbag 504 is provided inside the isolation block 501, and an outer airbag 505 is provided outside the isolation block 501. An arc-shaped spring 506 is provided inside the isolation block 501, and a sealing plate 507 is connected to the end of the arc-shaped spring 506. An anchor rod hole 503 is opened in the middle of the isolation block 501, and reserved holes 502 are opened on both sides of the anchor rod hole 503. Both the inner airbag 504 and the outer airbag 505 are provided with a mating interface, and a one-way valve is provided in the mating interface. The first air pipe 1 is connected to the outer airbag 505 through the mating interface, and the second air pipe 2 is connected to the inner airbag 504 through the mating interface. A sliding groove is provided inside the isolation block 501, and the isolation block 501 is slidably installed inside the isolation block 501 through the sliding groove.

[0023] Specifically, during construction, the grouting pipe 3 is inserted into the deep hole, and then the outer air bladder 505 is inflated through the connected first air pipe 1. This inflation process causes the outer air bladder 505 to expand, which restricts the movement of the isolation block 501 and effectively blocks the gap between the isolation block 501 and the deep hole. After the isolation block 501 is fixed inside the deep hole, the inner air bladder 504 is inflated through the connected second air pipe 2, causing the inner air bladder 504 to also expand. The expansion of the inner air bladder 504 blocks the gap between the anchor bolt hole 503 and the ribbed anchor bolt 4, thereby preventing mortar leakage during the grouting process. After the grouting work is completed, when the grouting pipe 3 and the air pipe are pulled out, the arc spring 506 automatically pushes the sealing plate 507 to cover and block the reserved hole 502, thus preventing the mortar from settling under gravity.

[0024] like Figure 2 and Figure 4 As shown, the positioning mechanism 6 includes a nail gun tube 605 fixedly installed at the bottom of the isolation block 501. A steel nail 606 is provided inside the nail gun tube 605. A nail gun cartridge 607 is provided at one end of the nail gun tube 605. A mounting bracket 602 is fixedly installed at one end of the nail gun tube 605. A firing pin 608 is movably installed on the mounting bracket 602. A spring seat 604 is fixedly installed on the firing pin 608. A power storage spring 603 is sleeved on the firing pin 608. A pull rope 601 is provided at one end of the firing pin 608. A movable hole is provided on the mounting bracket 602. The firing pin 608 is movably installed on the mounting bracket 602 through the movable hole, and the firing pin 608 and the nail gun cartridge 607 are aligned front and back. One end of the power storage spring 603 is fixedly installed on the mounting bracket 602, and the other end of the power storage spring 603 is fixedly installed on the spring seat 604. One end of the pull rope 601 is fixedly installed on the firing pin 608, and the other end of the pull rope 601 is fixedly installed on the ribbed anchor rod 4.

[0025] Specifically, after the ribbed anchor rod 4 completes its rotation, it causes the winding rope 601 to wind up, compressing the energy storage spring 603. As the energy storage spring 603 continues to compress, it eventually breaks due to the tension it cannot withstand. Once the rope breaks, the energy storage spring 603 releases its stored energy, propelling the firing pin 608 forward. The firing pin 608, moving at high speed, strikes the nail cartridge 607, triggering its firing. The immense energy generated during firing is sufficient to drive the steel nail 606 deep into and firmly insert it into the inner wall of the deep hole. In this way, the spacer blocks 501 can be fixed at intervals within the deep hole, dividing it into several independent small spaces. This separation method greatly facilitates the grouting process and effectively prevents the mortar in the deep hole from settling during grouting.

[0026] Working principle: In use, the isolation blocks 501 are first spaced out inside the grouting pipe 3. After the isolation blocks 501 are spaced out inside the grouting pipe 3, the grouting pipe 3 can be extended into the deep hole of the roadway. Once the grouting pipe 3 is in the deep hole, air can be injected into the outer airbag 505 through the first air pipe 1, causing the outer airbag 505 to expand. After the outer airbag 505 expands, it restricts the movement of the isolation blocks 501 and blocks the gap between the isolation blocks 501 and the deep hole. Then, the ribbed anchor bolt 4 can be rotated. After rotating the ribbed anchor bolt 4, it will retract the pull rope 601, compressing the energy storage spring 603. Once the energy storage spring 603 is compressed to a certain extent, the pull rope 601 will break. After the pull rope 601 breaks, the energy storage spring 603 will push the firing pin 608 to fire the nail-firing cartridge 607. The energy generated by the firing of the nail-firing cartridge 607 will push the steel nail 606 into the inner wall of the deep hole, fixing the spacer blocks 501 at intervals within the deep hole, dividing the deep hole into small spaces for easy isolation grouting. After the spacer blocks 501 are fixed at intervals within the deep hole, air can be injected into the inner air bladder 504 through the second air pipe 2, causing the inner air bladder 504 to expand and block the gap between the anchor bolt hole 503 and the ribbed anchor bolt 4, preventing mortar leakage during grouting.

[0027] 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.

Claims

1. A roadway long-hole isolated grouting device, comprising a grouting pipe (3), one side of the grouting pipe (3) is provided with a ribbed anchor rod (4), characterized in that: The ribbed anchor rod (4) is provided with an isolation mechanism (5) at intervals. The isolation mechanism (5) is connected to a first air pipe (1) and a second air pipe (2). The isolation mechanism (5) includes an isolation block (501) provided on the ribbed anchor rod (4). The inner side of the isolation block (501) is provided with an inner airbag (504). The outer side of the isolation block (501) is provided with an outer airbag (505). The isolation block (501) is provided with an arc spring (506). The end of the arc spring (506) is connected to a sealing plate (507). The bottom of the isolation block (501) is fixedly installed with a positioning mechanism (6).

2. The deep-hole isolation grouting device for roadways according to claim 1, characterized in that: An anchor bolt hole (503) is provided in the middle of the isolation block (501), and reserved holes (502) are provided on both sides of the anchor bolt hole (503).

3. The deep-hole isolation grouting device for roadways according to claim 2, characterized in that: Both the inner airbag (504) and the outer airbag (505) are provided with a connection interface, and a one-way valve is provided in the connection interface. The first air tube (1) is connected to the outer airbag (505) through the connection interface, and the second air tube (2) is connected to the inner airbag (504) through the connection interface.

4. The deep-hole isolation grouting device for roadways according to claim 3, characterized in that: The ribbed anchor rod (4) passes through the anchor rod hole (503) through the isolation block (501). The first air pipe (1) and the second air pipe (2) pass through the isolation block (501) through the reserved hole (502) on one side of the anchor rod hole (503). The grouting pipe (3) passes through the isolation block (501) through the reserved hole (502) on the other side of the anchor rod hole (503). A sliding groove is provided in the isolation block (501). The isolation block (501) is slidably installed in the isolation block (501) through the sliding groove.

5. The deep-hole isolation grouting device for roadways according to claim 4, characterized in that: The positioning mechanism (6) includes a nail gun tube (605) fixedly installed at the bottom of the isolation block (501). The nail gun tube (605) contains a steel nail (606). One end of the nail gun tube (605) is provided with a nail gun cartridge (607). One end of the nail gun tube (605) is fixedly installed with a mounting bracket (602). A firing pin (608) is movably installed on the mounting bracket (602). A spring seat (604) is fixedly installed on the firing pin (608). A storage spring (603) is sleeved on the firing pin (608). One end of the firing pin (608) is provided with a pull rope (601).

6. The deep-hole isolation grouting device for roadways according to claim 5, characterized in that: The mounting bracket (602) has a movable hole, and the firing pin (608) is movably mounted on the mounting bracket (602) through the movable hole, and the firing pin (608) is aligned with the front and rear of the nail gun cartridge (607).

7. The deep-hole isolation grouting device for roadways according to claim 6, characterized in that: One end of the energy storage spring (603) is fixedly installed on the mounting bracket (602), and the other end of the energy storage spring (603) is fixedly installed on the spring seat (604). One end of the pull rope (601) is fixedly installed on the firing pin (608), and the other end of the pull rope (601) is fixedly installed on the ribbed anchor rod (4).

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