CN204511478U - A kind of self-feeding anchor pile structure - Google Patents

Abstract

A self-propelled anchor structure, at least including a drill bit, an anchor body, a coupling sleeve, a grout plug, an arched backing plate and a nut; on the rod body; the drill bit is arranged at the left end of the whole body, and is threadedly connected with the bolt body; the coupling sleeve is arranged at the middle part of the whole body, and can rotate on the bolt body; the grout stopper is arranged at the whole body the right end of the backing plate, and connected by thread; the arched backing plate is set on the right side of the grout stopper, and is spot-welded with the stopper; the nut is set on the right side of the arched backing plate; the structure is simple, and the connection Compact, safe and reliable, it is beneficial to work in a loose and broken environment, has good economic and social benefits, and is easy to promote and use.

Description

A self-propelled anchor structure

technical field

The utility model relates to the technical field of anchor rod structure applications, in particular to a self-advancing anchor rod structure.

Background technique

The self-advancing bolt structure is the most basic part of roadway support in contemporary coal mines. It reinforces the surrounding rock of the roadway so that the surrounding rock can support itself. Now the bolt is not only used in mines, but also in engineering In the technology, the main reinforcement is carried out on the slope, tunnel and dam body. Ordinary mortar bolts have problems such as collapsed holes, inability to insert rods, and insufficient grouting. It is difficult to play the role of bolt support, which reduces the bearing capacity of the surrounding rock and is not conducive to the overall stability of the surrounding rock. Therefore, we propose a self-advancing anchor structure for the above problems.

Utility model content

The existing technology cannot meet people's needs. In order to make up for the deficiency of the existing technology, the utility model aims to provide a self-propelled anchor structure with simple structure, tight connection, safety and reliability, and is conducive to working in loose and broken environments. .

In order to achieve the above purpose, the utility model adopts the following technical solutions: a self-propelled anchor rod structure, at least including a drill bit, an anchor rod body, a coupling sleeve, a grout stopper, an arched backing plate and a nut; the anchor rod body penetrates It is set on the upper end of the whole body, and other components are installed through the anchor body; the drill bit is set on the left end of the whole body, and is threadedly connected with the anchor body; the coupling sleeve is set in the middle part of the whole body, and can Rotate on the rod body; the grout stopper is arranged at the right end of the whole body, and is connected by threads; the arched backing plate is arranged on the right side of the grout stopper, and is connected with the grout stopper by spot welding; the nut is arranged on The right side of the arched backing plate.

As an optimized technical solution of the utility model: the grout stopper and the arched backing plate form a propeller structure; the anchor rod body is set inside the coupling sleeve, and the outer surface of the anchor rod is threadedly connected with the inner surface of the coupling sleeve.

Compared with the prior art, the utility model has the beneficial effects that: the anchor rod body adopts good thick-walled seamless steel pipe material, perfect and quick surface thread forming process, and can achieve self-advancing anchor rod drilling and grouting. , anchoring and other functions are unified, the anchor rod body has a continuous wave thread, which can be used as a drill rod to cooperate with a drill bit to complete drilling into an anchor hole, and the grout stopper is welded together with the arched backing plate. It can efficiently maintain a strong grouting pressure for grouting, fully fill the gap, and fix the broken rock mass. The high-strength backing plate and nut can evenly transfer the stress of the deep surrounding rock to the surrounding wall and reach the surrounding rock. The purpose of mutual support with the bolt is that the self-propelled bolt does not need to be pulled out as a drill pipe, and there is no problem of hole collapse. The hollow can be used as a grouting channel for grouting from the inside to the outside. The length of the self-advancing anchor rod can be lengthened while drilling as required.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is the schematic diagram of installation work of the utility model;

Among them: 1. Bottom plate, 2. Enclosure beam, 3. Enclosure pile, 4. Bagged sand and gravel, 5. Steel pipe, 6. Diagonal brace, 7. Tie steel bar.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-2. In the embodiment of the present utility model, a self-propelled anchor structure includes at least a drill bit 1, an anchor body 2, a coupling sleeve 3, a grout stopper 4, an arched backing plate 5 and a nut 6 ; The anchor body 2 is arranged through the upper end of the whole body, and other components are installed through the anchor body 2; the drill bit 1 is arranged at the left end of the whole body, and is connected with the anchor body 2 through threads; the coupling sleeve 3 is set in the middle of the whole body, and can rotate on the anchor body 2; the grout stopper 4 is set at the right end of the whole body, and is connected by thread; the arched backing plate 5 is set on the right side of the grout stopper 4 side, and is spot-welded with the grout stopper 4; the nut 6 is arranged on the right side of the arched backing plate 5.

As an optimized technical solution of the present utility model: the grout stopper 4 and the arched backing plate 5 form a propeller-type structure; Internal surface threaded connection.

As the working principle of the present utility model: when drilling the self-propelled rock bolt structure, use a trolley or a hand-held rock drill to drill the bolt with the drill bit installed to the design depth, and if the bolt needs to be lengthened, use a coupling sleeve to drill Connect, then drill through the drilling rig, unload the drilling rig, install the grout stopper, and install it at the opening of the anchor hole. In special cases, the grout pressure is high or the surrounding rock is too broken, and the anchoring agent can also be used to seal the hole. The grout joint connects the end of the anchor rod with the grouting pump, starts the machine to grout, and stops when the grout is full and the pressure reaches the design value. The grouting pressure is determined according to the design parameters and the performance of the grouting machine, and the backing plate is installed according to the design requirements. And nuts, when constructing under various surrounding rock conditions, anchor holes can be formed without special methods such as casing wall protection and pre-grouting, and the anchoring and grouting effects can be guaranteed.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any minor modifications, equivalent replacements and improvements made to the above embodiments according to the technical essence of the present utility model shall be included in the Within the scope of protection of the technical solution of the utility model.

Claims (3)

1. A self-advancing bolt structure, at least including a drill bit (1), a bolt body (2), a coupling sleeve (3), a grout stopper (4), an arched backing plate (5) and a nut (6) ; It is characterized in that: the anchor rod body (2) is arranged through the upper end of the whole body, and other components are installed through the anchor rod body (2); the drill bit (1) is arranged at the left end of the whole body, and is connected with the anchor rod The body (2) is connected by thread; the coupling sleeve (3) is arranged in the middle of the whole body, and can rotate on the anchor body (2); the grout stopper (4) is arranged at the right end of the whole body, and through threaded connection; the arched backing plate (5) is arranged on the right side of the grout stopper (4), and is connected with the stopper (4) by spot welding; the nut (6) is arranged on the arched backing plate (5) ) to the right. 2. A self-advancing bolt structure according to claim 1, characterized in that: the grout stopper (4) and the arched backing plate (5) form a propeller structure. 3. A self-propelled anchor structure according to claim 1, characterized in that: the anchor body (2) is set inside the coupling sleeve (3), and the outer surface of the anchor body (2) is connected to the Cover (3) inner surface threaded connection.