CN211116069U

CN211116069U - Composite anchor rod

Info

Publication number: CN211116069U
Application number: CN201922481330.8U
Authority: CN
Inventors: 王健博
Original assignee: Zhengzhou Siyou Construction Technology Co ltd
Current assignee: Shanghai Construction Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-28
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a composite anchor rod, relating to the technical field of building engineering materials, which comprises a skeleton rod with a raised outer wall arranged on the outer surface of the top end; a circular pipe with a convex inner wall is arranged on the inner surface of the bottom end; the bone rack rod can be inserted into a circular tube, the bottom end of the bone rack rod is contacted with the inner wall bulge, the circular tube at the position corresponding to the inner wall bulge is expanded outwards, and the upper side of the inner wall of the circular tube is expanded outwards after the outer wall bulge is contacted with the upper side of the inner wall of the circular tube; when the outer wall bulge is inserted into the upper side of the inner wall of the round pipe, the inner wall at the top end of the round pipe is pushed to expand outwards in the same way, so that the top end of the expanded round pipe is clamped at the port of the anchor rod hole, and the anti-pulling effect of the anchor rod on building structures and the like is realized; the utility model discloses the operation is extremely simple, through press etc. impress the skeleton pole in advance place in the downthehole pipe of stock can, the effectual efficiency of construction that has improved.

Description

Composite anchor rod

Technical Field

The utility model relates to a building engineering material technical field specifically is a compound stock.

Background

The anchor rod is the most basic component of the roadway support, and reinforces the surrounding rocks of the roadway together to support the surrounding rocks per se. The anchor rod is not only used in mines, but also in engineering technology for reinforcing main bodies of slopes, tunnels and dams. The anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is an area for transmitting the tension at the head of the anchor rod to an anchoring body, and the anchor rod is used for applying prestress to the anchor rod.

Through search, Chinese patent with publication No. CN2432337 discloses a prestressed multifunctional composite anchor rod, which mainly comprises a threaded rod, an inner expansion plug, an outer expansion plug, a circular tube, a nut, a washer, a tray and a backing plate, wherein the threaded rod is assembled with the circular tube through the inner and outer expansion plugs, i.e. the threaded rod is sleeved in the circular tube through the inner and outer expansion plugs.

However, in the above-described technical solutions, the present inventors have found that the nut needs to be tightened when mounting, which requires a lot of manpower, and also limits the mounting efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound stock, it needs the nut on when the installation to aim at solving the compound stock among the prior art, need consume a large amount of manpowers, has restricted the problem of installation effectiveness moreover.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the composite anchor rod includes:

the outer surface of the top end is provided with a skeleton rod with a convex outer wall;

a circular pipe with a convex inner wall is arranged on the inner surface of the bottom end;

the bone rack rod can be inserted into the round pipe, the round pipe at the position corresponding to the inner wall protrusion is enabled to expand outwards after the bottom end of the bone rack rod is contacted with the inner wall protrusion, and the upper side of the inner wall of the round pipe is enabled to expand outwards after the outer wall protrusion is contacted with the upper side of the inner wall of the round pipe.

Expansion joints are arranged at the two ends of the round pipe along the axial direction.

The outer wall protrusion is detachably connected with the framework rod.

The top end surface of the skeleton rod is axially provided with a first sliding groove, and the outer wall protrusion is in sliding connection with the first sliding groove.

The outer wall protrusion faces the end portion of the framework rod, a first trapezoidal protrusion is formed on the end portion of the outer wall protrusion, and the outer wall protrusion and the first trapezoidal protrusion are connected with the first sliding groove in a sliding mode.

The end part of the top end of the skeleton rod is connected with a blocking piece through a first threaded piece, and the blocking piece can be in contact with the end part of the outer wall protrusion and limits the outer wall protrusion.

The inner wall protrusion is detachably connected with the circular tube.

The second spout has been seted up along the axial to the bottom inner wall of pipe, the protruding orientation of inner wall the tip shaping of pipe inner wall has the trapezoidal arch of second, the protruding and trapezoidal arch of second of inner wall all slides with the second spout and is connected.

The bottom end of the round pipe is connected with a baffle ring through a second threaded part, and the baffle ring can be in contact with the end part of the inner wall protrusion and limit the inner wall protrusion.

The surface of the outer wall bulge far away from the bone rack rod is in a slope shape A, the slope shape A is a shape close to the top end of the bone rack rod and high and the other opposite end is low, the surface of the inner wall bulge far away from the circular tube is in a slope shape B, and the slope shape B is a shape close to the bottom end of the circular tube and high and the other opposite end is low.

The utility model has the advantages that:

1. firstly, a circular pipe is arranged in a drilled anchor rod hole, then a framework rod is pressed into the circular pipe through a press machine and the like, after the bottom end of the framework rod is contacted with the inner wall bulge, the framework rod which moves downwards continuously props against the inner wall bulge, and finally the bottom end of the circular pipe is expanded outwards, so that when the circular pipe and the anchor rod hole have a relative movement trend, the circular pipe is subjected to a larger friction force; when the outer wall bulge is inserted into the upper side of the inner wall of the round pipe, the inner wall at the top end of the round pipe is pushed to expand outwards in the same way, so that the top end of the expanded round pipe is clamped at the port of the anchor rod hole, and the anti-pulling effect of the anchor rod on building structures and the like is realized;

2. the utility model discloses the operation is extremely simple, through press etc. impress the skeleton pole in advance place in the downthehole pipe of stock can, the effectual efficiency of construction that has improved.

Drawings

Fig. 1 is a structural view showing a state where a frame rod and a circular tube are separated in an exemplary embodiment of a composite anchor rod.

Fig. 2 is a structural view showing an installation state of a framework rod and a circular tube in an embodiment of the composite anchor rod.

Fig. 3 is a front view of a skeletal rod in an exemplary embodiment of a composite anchor rod.

Fig. 4 is a sectional view taken along line a-a of fig. 3.

Fig. 5 is a front view of a circular tube in an exemplary embodiment of a composite anchor.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1-6, a composite anchor rod comprises a skeleton rod 1, the top end of which is provided with an outer wall bulge 11 on the outer surface; the inner surface of the bottom end is provided with a circular tube 2 with a raised inner wall 21; the frame rod 1 can be inserted into the circular tube 2, and after the bottom end of the frame rod 1 contacts the inner wall protrusion 21, the circular tube 2 at the position corresponding to the inner wall protrusion 21 is expanded, and after the outer wall protrusion 11 contacts the upper side of the inner wall of the circular tube 2, the upper side of the inner wall of the circular tube 2 is expanded.

Firstly, arranging a circular tube 2 in a drilled anchor rod hole, then pressing a skeleton rod 1 into the circular tube 2 through a press machine and the like, as shown in fig. 2, after the bottom end of the skeleton rod 1 is contacted with an inner wall bulge 21, pushing the inner wall bulge 21 against the skeleton rod 1 which moves downwards continuously, and finally expanding the bottom end of the circular tube 2, so that when the circular tube 2 and the anchor rod hole have a relative movement trend, the circular tube 2 is subjected to a larger friction force; when the protruding 11 of outer wall inserted the inner wall upside of pipe 2, the same top inner wall that is pushing against pipe 2 rises outward, makes the port department that blocks the stock hole on the top of pipe 2 after rising outward to make the realization the utility model discloses resistance to plucking to building structure etc..

More importantly, the utility model discloses the operation is extremely simple, through press etc. impress hack lever 1 in advance place the downthehole pipe 2 of stock can, the effectual efficiency of construction that has improved.

Furthermore, expansion joints are formed at two ends of the circular tube 2 along the axial direction, so that the expansion end of the circular tube 2 has a proper expansion range.

Further, the outer wall protrusion 11 is detachably connected to the frame rod 1, specifically, a first sliding groove is axially formed in the top end surface of the frame rod 1, the outer wall protrusion 11 is slidably connected to the first sliding groove, the outer wall protrusion 11 faces the end portion of the frame rod 1, a first trapezoidal protrusion 111 is formed in the end portion of the outer wall protrusion 11, the outer wall protrusion 11 and the first trapezoidal protrusion 111 are connected to the first sliding groove in a sliding manner, the top end portion of the frame rod 1 is connected to a blocking piece 12 through a first threaded part 13, and the blocking piece 12 can be in contact with the end portion of the outer wall protrusion 11 and limit the outer wall protrusion 11.

When the protruding 11 installation of outer wall is in first spout when needs, can now insert into first spout in the notch of the protruding 11 follow first spout extension bone hack lever 1's of outer wall tip, then install separation blade 12 in bone hack lever 1's tip department through first screw 13, accomplished the quick installation to the protruding 11 of outer wall this moment promptly, because the protruding 11 of outer wall can be dismantled with skeleton pole 1 and be connected, consequently can select the protruding 11 model of outer wall of treating the installation as required, the protruding 11 of outer wall of different models can set different height to, thereby can control the scope that pipe 2 rises outward according to the model of selecting the protruding 11 of outer wall.

Further, the protruding 21 of inner wall with the connection can be dismantled to pipe 2, the second spout has been seted up along the axial to the bottom inner wall of pipe 2, the protruding 21 orientation of inner wall the tip shaping of 2 inner walls of pipe has the trapezoidal protruding 211 of second, the protruding 21 of inner wall and the trapezoidal protruding 211 of second all slide with the second spout and be connected, the bottom tip of pipe 2 is connected with through second screw 23 and keeps off ring 22, keep off ring 22 can with the tip contact of the protruding 21 of inner wall is spacing to the protruding 21 of inner wall.

When the protruding 21 of inner wall is installed in the second spout as required, can now insert to the second spout in the notch of the protruding 21 of inner wall extension hack lever 1's of first spout, then will keep off ring 22 and install the tip department at pipe 2 through second screw 23, the quick installation to the protruding 21 of inner wall has been accomplished this moment promptly, can dismantle with pipe 2 by the protruding 21 of inner wall and be connected, consequently, can select the protruding 21 model of inner wall of treating the installation as required, the protruding 21 of inner wall of different models can set different height to, thereby can control the scope that pipe 2 rises outward according to the model of selecting the protruding 21 of inner wall.

Further, the surface of the outer wall protrusion 11 away from the bone frame rod 1 is a slope surface shape a, the slope surface shape a is a shape close to the top end of the bone frame rod 1 and high and the opposite end is low, the surface of the inner wall protrusion 21 away from the circular tube 2 is a slope surface shape B, and the slope surface shape B is a shape close to the bottom end of the circular tube 2 and high and the opposite end is low.

By setting the outer wall protrusion 11 to be the slope shape a and the inner wall protrusion 21 to be the slope shape B, the end of the circular tube 2 is gradually subjected to the outward expansion force, so that the circular tube 2 has a gradual outward expansion process.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A composite anchor rod, characterized by, includes:

the outer surface of the top end is provided with a skeleton rod (1) with an outer wall bulge (11);

the inner surface of the bottom end is provided with a circular tube (2) with a raised inner wall (21);

the bone rack rod (1) can be inserted into the circular tube (2), the circular tube (2) at the position corresponding to the inner wall protrusion (21) is enabled to expand outwards after the bottom end of the bone rack rod (1) is contacted with the inner wall protrusion (21), and the upper side of the inner wall of the circular tube (2) is enabled to expand outwards after the outer wall protrusion (11) is contacted with the upper side of the inner wall of the circular tube (2).

2. The composite anchor rod as claimed in claim 1, wherein expansion joints are axially formed at both ends of the circular tube (2).

3. A composite anchor according to claim 1, in which the outer wall projections (11) are removably connected to the frame bar (1).

4. A composite anchor rod according to claim 3, wherein the top end surface of the frame rod (1) is provided with a first sliding groove along the axial direction, and the outer wall protrusion (11) is connected with the first sliding groove in a sliding manner.

5. The composite anchor rod as claimed in claim 4, wherein the end of the outer wall protrusion (11) facing the side frame rod (1) is formed with a first trapezoidal protrusion (111), and both the outer wall protrusion (11) and the first trapezoidal protrusion (111) are slidably connected with the first sliding groove.

6. A composite anchor according to claim 5, wherein the top end of the shank (1) is connected to a stop (12) by means of a first threaded element (13), said stop (12) being adapted to contact the end of the outer wall projection (11) and to limit the outer wall projection (11).

7. A composite anchor rod according to claim 1, in which the inner wall projection (21) is detachably connected to the circular tube (2).

8. The composite anchor rod as claimed in claim 7, wherein a second sliding groove is axially formed in the inner wall of the bottom end of the circular tube (2), a second trapezoidal protrusion (211) is formed at the end of the inner wall protrusion (21) facing the inner wall of the circular tube (2), and the inner wall protrusion (21) and the second trapezoidal protrusion (211) are connected with the second sliding groove in a sliding manner.

9. A composite anchor rod according to claim 8, wherein the bottom end of the circular tube (2) is connected with a stop ring (22) through a second screw element (23), and the stop ring (22) can be contacted with the end of the inner wall bulge (21) and limit the inner wall bulge (21).

10. A composite anchor according to any one of claims 1 to 9, wherein the surface of the outer wall projection (11) remote from the shank (1) is of a sloping configuration a which is high near the top end of the shank (1) and low at the opposite end, and the surface of the inner wall projection (21) remote from the tube (2) is of a sloping configuration B which is high near the bottom end of the tube (2) and low at the opposite end.