A rapid installation bolt assembly for roadway support

Abstract

The utility model discloses a quick installation anchor rod assembly for roadway support, include: anchor rod body and inject the pole, install the groove in the anchor rod body, install the bagged adhesive and sealing block in the installation groove, a plurality of discharge holes are seted up on the anchor rod body. The utility model provides a quick installation anchor rod assembly for roadway support through set up anchor rod body and inject the pole, install the cavity in the anchor rod body, and install the bagged adhesive and sealing block in advance in the installation cavity, utilize inject the pole and enter the installation groove, break the bagged adhesive and make the adhesive enter the drilling hole through the discharge hole, paste and fix the anchor rod body that drills into the rock stratum, need not use special adhesive injection equipment, has reduced the equipment use cost, uses more convenient and fast, and the use amount of adhesive is stable, can effectively reduce waste.

Description

Technical Field

[0001] This utility model relates to the field of tunnel support technology, and in particular to a quick-installation anchor bolt assembly for tunnel support. Background Technology

[0002] In mining and tunneling operations, top and side support is crucial. The sides and top of mines and tunnels are composed of rock strata and must be reinforced to prevent the possibility of collapse. Rock bolts are used for tunnel support. Rock bolts can be classified into three types according to their anchoring method: mechanical friction type, adhesive type, and self-anchoring type. Adhesive-type rock bolts require drilling the bolt into the tunnel wall first, then filling the borehole with adhesive using a filling device. The adhesive binds the bolt to the surrounding rock, forming a unified structure and achieving a good anchoring effect.

[0003] However, the filling of adhesives requires specialized filling equipment, which takes a lot of time to assemble and disassemble, making it neither quick nor convenient, and also increasing the cost of the equipment.

[0004] Therefore, it is necessary to provide a quick-installation anchor bolt assembly for roadway support to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a quick-installation anchor bolt assembly for roadway support that can complete the installation and fixation of anchor bolts without the need for special adhesive injection equipment, making it more convenient and faster to use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A quick-installation anchor bolt assembly for roadway support includes: an anchor bolt body and an injection rod; an installation groove is formed in the anchor bolt body, and a sealing block containing bagged adhesive and rubber material is installed in the installation groove; multiple discharge holes are formed on the anchor bolt body, and the injection rod is connected to the installation groove.

[0008] Preferably, an internal thread is formed in the mounting groove.

[0009] Preferably, a connecting seat is installed at the tail of the anchor bolt body, and the connecting seat is used to connect the anchor bolting machine.

[0010] Preferably, the anchor bolt body is provided with helical teeth and breaking teeth.

[0011] Preferably, a spiral groove is provided on the injection rod.

[0012] Preferably, a hexagonal block is fixedly installed at the tail of the injection rod.

[0013] Preferably, a screw is fixedly installed at the tail of the injection rod, and a pressure plate and a nut are installed on the screw.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) This utility model sets up an anchor body and an injection rod, and opens an installation cavity in the anchor body. A bag of adhesive and a sealing block are pre-installed in the installation cavity. The injection rod enters the installation groove and squeezes the bag of adhesive, so that the adhesive enters the borehole through the discharge hole to stick and fix the anchor body in the rock layer. There is no need to use special adhesive injection equipment, which reduces the cost of equipment use, makes it more convenient and faster to use, and the amount of adhesive used is stable, which can effectively reduce waste.

[0016] (2) By installing a connecting seat at the tail of the anchor bolt body, this utility model can easily connect the anchor bolt body to the anchor bolt machine;

[0017] (3) By setting spiral teeth and breaking teeth on the anchor body, this utility model can facilitate the breaking and drilling of rock strata;

[0018] (4) By setting a spiral groove, a hexagonal block, a screw, a pressure plate and a nut, this utility model can easily connect the injection rod to the anchor body and can easily fix the anchor mesh. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the anchor body in the quick-installation anchor assembly for roadway support provided by this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the anchor bolt body;

[0021] Figure 3 This is a schematic diagram of the injection rod in the quick-installation anchor bolt assembly for roadway support provided by this utility model.

[0022] The corresponding names of the attached figures are: 1-anchor body, 2-injection rod, 11-installation groove, 12-bagged adhesive, 13-discharge hole, 14-connecting seat, 15-sealing block, 16-spiral tooth, 17-breaking tooth, 21-spiral groove, 22-hexagonal block, 23-screw, 24-pressure plate, 25-nut. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0024] Example 1:

[0025] like Figure 1-3As shown, the quick-installation anchor bolt assembly for roadway support provided by this utility model includes: an anchor bolt body 1 and an injection rod 2; an installation groove 11 is opened in the anchor bolt body 1, the tail of the installation groove 11 is connected to the outside, and multiple discharge holes 13 are opened in the middle of the position where adhesive needs to be injected into the anchor bolt body 1 (for example, if the required injection depth is 30-70cm from the tail, then the middle position is 50cm from the tail of the anchor bolt). An internal thread is opened on the side of the installation groove 11 near the tail of the anchor bolt body 1, the length of the internal thread is about 10cm, and the discharge holes 13 are away from the internal thread. A bag of adhesive 12 and a rubber sealing block 15 are installed in the installation groove 11, and the sealing block 15 seals the bag of adhesive 12 facing the tail of the anchor bolt body 1. The injection rod 2 is connected to the installation groove 11. In use, the anchor bolt body 1 is drilled into the tunnel wall using an anchor bolting machine, leaving only a portion of its tail exposed. Then, the injection rod 2 is screwed into the installation groove 11, causing it to press against the sealing block 15 and move towards the front end of the anchor bolt body 1. This causes the plastic-packaged adhesive 12 to rupture at the discharge hole 13 (the other parts of the adhesive packaging are adhered to the inner wall of the installation groove 11 or the sealing block 15 and cannot rupture). The adhesive is discharged from the discharge hole 13 into the borehole, filling the gap between the borehole and the anchor bolt body 1 within a predetermined depth. The adhesive then fixes the anchor bolt body 1 within the borehole, achieving an anchoring effect. This structure, by pre-quantitatively filling the bagged adhesive 12, minimizes adhesive waste and allows for injection to a specific depth range. Injecting the adhesive into the borehole via the injection rod 2 eliminates the need for specialized injection equipment, reducing equipment usage and saving time on equipment movement, connection, and disassembly. This allows for faster anchor bolt installation and greater convenience. It is worth noting that if there is no internal thread in the mounting groove 11, the injection rod 2 is directly inserted into the mounting groove 11, and the tail of the injection rod 2 is struck with a hammer to break the bag of adhesive 12 and inject the adhesive into the borehole. The remaining process (such as the laying and fixing of the anchor mesh) will not be described in detail here. The remaining adhesive in the mounting groove 11 is used to glue and fix the injection rod 2 to the mounting groove 11, making the two a single unit and improving the structural strength of the anchor body 1.

[0026] By setting up an anchor bolt body 1 and an injection rod 2, and opening an installation cavity 11 inside the anchor bolt body 1, and pre-installing bagged adhesive 12 and sealing block 15 in the installation cavity 11, the injection rod 2 is used to enter the installation cavity 11 to break the bagged adhesive 12, so that the adhesive enters the borehole through the discharge hole 13 to bond and fix the anchor bolt body 1 drilled into the rock stratum. There is no need to use special adhesive injection equipment, which reduces the cost of equipment use, makes it more convenient and faster to use, and the amount of adhesive used is stable, which can effectively reduce waste.

[0027] Example 2:

[0028] like Figure 1-2 As shown, a connecting seat 14 with holes is installed at the tail of the anchor bolt body 1. The connecting seat 14 is used to connect the anchor bolt machine or other equipment. In use, the connecting seat 14 is embedded and connected to the rotating end of the anchor bolt machine, thereby connecting the anchor bolt body 1 to the anchor bolt machine.

[0029] By installing a connecting seat 14 at the tail of the anchor bolt body 1, the anchor bolt body 1 can be easily connected to the anchor bolt machine.

[0030] Example 3:

[0031] like Figure 1 As shown, a spiral tooth 16 is provided on the anchor body 1, and a breaking tooth 17 is provided at the front end of the anchor body 1. During the rotation of the anchor body 1, the breaking tooth at the front end breaks the rock in front, while the spiral tooth 16 transports the broken rock to the rear and forces the anchor body 1 to move forward to drill a hole.

[0032] By setting helical teeth 16 and breaking teeth 17 on the anchor bolt body 1, it is convenient to break the rock strata and drill holes.

[0033] Example 4:

[0034] like Figure 3 As shown, the injection rod 2 is provided with a spiral groove 21. The spiral groove 21 can be threaded to the mounting groove 11 with internal threads, or it can be plugged into the mounting groove 11 without internal threads. A hexagonal block 22 and a screw 23 are fixedly installed at the tail of the injection rod 21. A pressure plate 24 and a nut 25 are installed on the screw 23. In use, the injection rod 2 is inserted into the mounting groove 11 from the middle of the connecting seat 14 and threaded to the mounting groove 11. A wrench or socket is used to put on the hexagonal block 22 to drive the injection rod 21 to rotate, thereby driving the injection rod 21 to move along the mounting groove 11 towards the front end of the anchor body 1 until the adhesive is injected into the drilled hole. At this time, the hexagonal block 22 abuts against the connecting seat 14, so that the anchor body 1 and the injection rod 2 are connected as one unit. Then, the pressure plate 24 and the nut 25 are placed on the screw 23 in sequence, and the nut 25 is tightened so that the pressure plate 24 presses tightly against the anchor mesh, thereby fixing the anchor mesh.

[0035] By setting the spiral groove 21, hexagonal block 22, screw 23, pressure plate 24 and nut 25, the injection rod 2 can be easily connected to the anchor body 1, and the anchor mesh can be easily fixed.

[0036] Working principle: During use, the anchor bolt body 1 is drilled into the tunnel wall using an anchor bolting machine, leaving only its tail end exposed for no more than 5cm. Then, the injection rod 2 is screwed into the installation groove 11, causing the injection rod 2 to press against the sealing block 15 and move towards the front end of the anchor bolt body 1. This causes the bagged adhesive 12 to rupture due to pressure at the discharge hole 13, and the adhesive is discharged from the discharge hole 13 into the borehole, filling the gap between the borehole and the anchor bolt body 1 within a predetermined depth. The adhesive also spreads towards the front and rear ends of the borehole. Through the adhesive, the anchor bolt body 1 is fixed in the borehole, achieving an anchoring effect.

Claims

1. A quick-installation anchor bolt assembly for roadway support, characterized in that, include: Anchor body (1) and injection rod (2); An installation groove (11) is provided in the anchor body (1), and bagged adhesive (12) and sealing block (15) are installed in the installation groove (11). Multiple discharge holes (13) are provided on the anchor body (1), and the injection rod (2) is connected to the installation groove (11).

2. The quick-installation anchor bolt assembly for roadway support according to claim 1, characterized in that, An internal thread is formed in the mounting groove (11).

3. The quick-installation anchor bolt assembly for roadway support according to claim 1, characterized in that, The anchor body (1) is equipped with a connecting seat (14) at its tail end, and the connecting seat (14) is used to connect the anchor bolt machine.

4. A quick-installation anchor bolt assembly for roadway support according to claim 1, characterized in that, The anchor body (1) is provided with helical teeth (16) and breaking teeth (17).

5. A quick-installation anchor bolt assembly for roadway support according to claim 1, characterized in that, The injection rod (2) is provided with a spiral groove (21).

6. A quick-installation anchor bolt assembly for roadway support according to claim 1, characterized in that, A hexagonal block (22) is fixedly installed at the tail of the injection rod (2).

7. A quick-installation anchor bolt assembly for roadway support according to claim 1, characterized in that, A screw (23) is fixedly installed at the tail of the injection rod (2), and a pressure plate (24) and a nut (25) are installed on the screw (23).

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