Mining area roadway supporting anchor rod anchorage device

Abstract

The utility model discloses a mining area roadway support anchor rod anchorage device which comprises an anchor rod and an anchorage device, the anchorage device is sleeved on the anchor rod, a clamping groove is arranged on the anchor rod, a stop lever is fixedly connected between the inner walls of two sides of the anchorage device, the stop lever is inserted into the clamping groove and is in sliding connection with the clamping groove, a locking nut is screwed on the anchor rod, an inserting hole is arranged on the anchor rod, and the inserting hole is perpendicular to the clamping groove. An inserting rod is inserted into the clamping groove, and an inserting rod arranged in the radial direction of the anchor rod is arranged, so that after the two nuts are used for locking, cross fixation is formed, stable use of the anchorage device is further guaranteed, meanwhile, the connecting ring can effectively protect the locking nut, unnecessary looseness of the locking nut due to external factors is avoided, and the service life of the anchorage device is prolonged. And the device is more stable and reliable to use.

Description

Technical Field:

[0001] The utility model relates to the field of mining bolts, in particular to an anchor for a mining roadway support bolt. Background Art:

[0002] Bolt support refers to a reinforcement support method used in surface projects such as slopes, deep foundation pits of rock and soil, and underground chambers such as tunnels and stopes.

[0003] A rod column is made of metal parts, wooden parts, polymer parts or other materials and is driven into a hole pre-drilled in the surface rock mass or the rock mass around the underground chamber. By using the special structure of its head and rod body and the tail plate (which can also be not used), or relying on the bonding effect, the surrounding rock is combined with the stable rock mass to produce a suspension effect, a combined beam effect, and a reinforcement effect, so as to achieve the purpose of support.

[0004] It has the advantages of low cost, good support effect, simple operation, flexible use, and less occupation of construction clearance.

[0005] In the support of mining roadways, the commonly used bolts are resin or slit-type bolts. After installation, an anchor is sleeved on the exposed end to support and limit the retaining net.

[0006] The existing anchor has a simple structure. During use, it is found that the stress points of the retaining net are mostly applied to the anchor, and the existing anchors are fixed by screwing a nut at the end of the bolt, so the problem of anchor loosening is likely to occur.

[0007] Therefore, an anchor for a mining roadway support bolt with reliable installation is needed. Content of the Utility Model:

[0008] The purpose of the utility model is to provide an anchor for a mining roadway support bolt.

[0009] The utility model is implemented by the following technical solutions:

[0010] An anchor for a mining roadway support bolt includes a bolt and an anchor. The anchor is sleeved on the bolt. A clamping groove is provided on the bolt. A retaining rod is fixedly connected between the inner walls on both sides of the anchor. The retaining rod is inserted into the clamping groove and is slidably connected therewith. A locking nut is screwed on the bolt. A jack is provided on the bolt. The jack is vertically arranged with respect to the clamping groove. A plug rod is inserted into the clamping groove. Nuts are screwed at both ends of the plug rod. A rotating ring is sleeved on the bolt. Both ends of the plug rod respectively pass through the rotating ring and are slidably connected therewith. One end of the rotating ring is rotatably connected with a connecting ring. The connecting ring is threadedly connected with the inner wall of the anchor.

[0011] Preferably, a plurality of mounting blocks are fixedly connected annularly and evenly on the outer wall of the anchor. An installation hole is provided in each mounting block. A limiting rod is inserted into each installation hole and is slidably connected therein.

[0012] Advantages of the utility model: There is an inserting rod arranged radially along the bolt. After being locked by two nuts, cross fixation will be formed, thus further ensuring the stable use of the anchor. At the same time, the connecting ring can effectively protect the locking nut and prevent it from loosening unnecessarily due to external factors, making the device more stable and reliable in use. Description of the drawings:

[0013] Figure 1 is a schematic diagram of the structure of the utility model;

[0014] Figure 2 is a right view of the anchor in the utility model.

[0015] In the figure: bolt 1, anchor 2, mounting block 3, card slot 4, locking nut 5, retaining rod 6, connecting ring 7, rotating ring 8, inserting rod 9, jack 10. Specific implementation manner:

[0016] As Figures 1 to 2 shown, a bolt anchor for supporting a mine roadway includes a bolt 1 and an anchor 2. The anchor 2 is sleeved on the bolt 1. A card slot 4 is arranged on the bolt 1. A retaining rod 6 is fixedly connected between the inner walls on both sides of the anchor 2. The retaining rod 6 is inserted into the card slot 4 and is slidably connected with it. A locking nut 5 is screwed on the bolt 1. A jack 10 is arranged on the bolt 1. The jack 10 is vertically arranged with the card slot 4. An inserting rod 9 is inserted into the card slot 4. Nuts are screwed on both ends of the inserting rod 9. A rotating ring 8 is sleeved on the bolt 1. Both ends of the inserting rod 9 respectively pass through the rotating ring 8 and are slidably connected with it. One end of the rotating ring 8 is rotatably connected with a connecting ring 7. The connecting ring 7 is threadedly connected with the inner wall of the anchor 2. During installation, first sleeve the anchor 2 on the bolt 1 exposed outside, then insert the retaining rod 6 into the card slot 4, and then rotate the locking nut 5 to form preliminary fixed limit. Further, there is an inserting rod 9 arranged radially along the bolt 1. After being locked by two nuts, cross fixation will be formed, thus further ensuring the stable use of the anchor 2. At the same time, the connecting ring 7 can effectively protect the locking nut 5 and prevent it from loosening unnecessarily due to external factors, making the device more stable and reliable in use.

[0017] A plurality of mounting blocks 3 are fixedly connected annularly and evenly on the outer wall of the anchor 2. Each mounting block 3 is provided with a mounting hole. A limiting rod is inserted into each mounting hole and is slidably connected with it. After the anchor 2 is installed, the retaining net has been fixed on the rock wall. At this time, according to the situation of the rock wall, the corresponding limiting rod can be selected and inserted into the corresponding mounting hole, so that the limiting rod can extend the support distance, thus further ensuring the support performance of the retaining net.

[0018] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mining tunnel support bolt anchor, characterized by: The invention comprises an anchor rod and an anchor, wherein the anchor rod is sleeved on the anchor rod, a slot is provided on the anchor rod, a stop rod is fixedly connected between the inner walls on both sides of the anchor, the stop rod is inserted into the slot and is slidably connected thereto, a locking nut is threaded on the anchor rod, a socket is provided on the anchor rod, the socket is vertically arranged to the slot, an insertion rod is inserted into the slot, nuts are threaded at both ends of the insertion rod, a rotating ring is sleeved on the anchor rod, both ends of the insertion rod pass through the rotating ring respectively and are slidably connected thereto, one end of the rotating ring is rotatably connected to a connecting ring, and the connecting ring is threadedly connected to the inner wall of the anchor.

2. The mining tunnel support bolt anchor according to claim 1, characterized in that: A plurality of mounting blocks are evenly and fixedly connected in an annular manner on the outer wall of the anchor, each mounting block is provided with a mounting hole, and a sliding connection limiting rod is inserted into each mounting hole.

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