Anchor rod device with high tensile strength

Abstract

The utility model discloses an anchor rod device with high tensile strength, and belongs to the technical field of anchor rod production. Comprising an anchor rod body, a threaded groove is formed in the outer wall of the anchor rod body, one end of the anchor rod body is fixedly connected with a communicated threaded pipe, the other end of the anchor rod body is fixedly connected with a communicated extension pipe, the anchor rod body is arranged to be in a hollow state, the threaded groove is formed in the outer wall of the anchor rod body, and a spine cylinder is fixedly connected to the inner wall of the anchor rod body; the hollow structure reduces the overall weight of the anchor rod body and relieves the burden of a stressed part, so that the tensile strength is improved, the threaded groove is filled with the mortar, the threaded groove can increase the interaction resistance with the mortar, the anchor rod body is embedded into soil or concrete more firmly, the tensile strength is improved, and the service life of the anchor rod is prolonged. Due to the existence of the spine cylinders on the inner wall of the anchor rod body, the friction force between the anchor rod body and mortar is increased, the tensile property of the anchor rod is improved, the anchor rod body of the hollow structure is easier to carry and install in construction, and the labor intensity is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of anchor rod production, and more specifically, to an anchor rod device with high tensile strength. Background Art

[0002] Anchor rods are the most basic component of tunnel support in modern coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock can support itself. Anchor rods are not only used in mines, but also in engineering technology to reinforce the main body of slopes, tunnels, and dams. As a tensile member that penetrates deep into the stratum, one end of the anchor rod is connected to the engineering structure, and the other end penetrates deep into the stratum. The entire anchor rod is divided into a free section and an anchoring section. The free section refers to the area where the tension at the anchor rod head is transmitted to the anchor body. Its function is to apply prestress to the anchor rod.

[0003] The document with prior art announcement number CN 203420722 U provides an anchor device, which uses a spring to press the anchor support plate against the rock wall into which the anchor is inserted; wherein the yield strength of the spring is greater than or equal to the pre-tightening force borne by the anchor support plate when the nut is tightened, and it is possible to more intuitively check whether the pre-tightening force of the anchor is sufficient, thereby making the installation of the anchor more convenient.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: the above-mentioned anchor rod device has a single structure, and the tensile strength of the anchor rod is not very high, resulting in that the use effect of the anchor rod is not very good.

[0005] With respect to the above-mentioned related technologies, the inventors believe that the existing anchor rod device has a single structure and the tensile strength of the anchor rod is not very high, resulting in that the use effect of the anchor rod is not very good.

[0006] In view of this, we propose an anchor device with high tensile strength. Utility Model Content

[0007] The purpose of the present application is to provide an anchor rod device with high tensile strength, solve the technical problems in the above-mentioned background technology, and achieve the technical effect of an anchor rod device with high tensile strength.

[0008] The technical solution of the present application provides an anchor device with high tensile strength, including an anchor body, an outer wall of the anchor body is provided with a threaded groove, one end of the anchor body is fixedly connected with a connected threaded tube, the other end of the anchor body is fixedly connected with a connected extension tube, the inner wall of the anchor body is fixedly connected with a spike tube, the outer wall of the extension tube is fixedly connected with a fixed sleeve, the outer wall of the fixed sleeve is fixedly connected with a plurality of fixed blocks, the outer wall of the fixed block is fixedly connected with a plurality of pressure plates, and the outer wall of the pressure plate is fixedly connected with a plurality of barbed blocks.

[0009] By adopting the above technical scheme, the anchor rod body is set to a hollow state, the outer wall of the anchor rod body is provided with a threaded groove and the inner wall is fixedly connected with a spiked tube, the hollow structure reduces the overall weight of the anchor rod body, reduces the burden on the stress-bearing parts, and thus improves the tensile strength, the mortar will fill the threaded groove, the threaded groove can increase the interaction resistance with the mortar, so that the anchor rod body is more firmly embedded in the soil or concrete, thereby improving the tensile strength, the presence of the spiked tube on the inner wall of the anchor rod body increases the friction between the anchor rod body and the mortar, improves the tensile performance of the anchor rod, and the anchor rod body with a hollow structure is easier to carry and install during construction, reducing labor intensity.

[0010] Optionally, the outer sleeve of the threaded tube is provided with a pad, the end face of the pad close to the anchor body is fixedly connected to a slurry stop plug, the end face of the threaded tube away is connected to a sealing cover by threaded rotation, the outer wall is connected to a nut by threaded rotation, the interior of the sealing cover is fixedly connected to a sealing block, and the outer wall of the sealing block is fitted with the inner wall of the threaded tube, and a pair of extension grooves are opened at one end of the fixed sleeve.

[0011] By adopting the above technical solution, the pad is fitted against the wall, and the nut is turned so that the nut presses against the pad. When the nut is tightened, the anchor rod body will be brought out of the hole, and the pressure plate will press against the inner wall of the hole. When tightening, the anchor rod body moves while the multiple barbs on the pressure plate will firmly press against the inner wall of the hole to prevent the anchor rod body from loosening, thereby greatly improving the stability of the anchor rod body during installation and facilitating the rapid injection of mud at a later stage.

[0012] One or more technical solutions provided in the technical solution of this application have at least the following technical effects or advantages:

[0013] 1. The present application sets the anchor body into a hollow state, with a threaded groove on the outer wall of the anchor body and a spiked tube fixedly connected to the inner wall. The hollow structure reduces the overall weight of the anchor body, reduces the burden on the stress-bearing parts, and thus improves the tensile strength. The mortar will fill the threaded groove, which can increase the interaction resistance with the mortar, so that the anchor body is more firmly embedded in the soil or concrete, thereby improving the tensile strength. The presence of the spiked tube on the inner wall of the anchor body increases the friction between the anchor body and the mortar, and improves the tensile performance of the anchor. The anchor body with a hollow structure is easier to carry and install during construction, reducing labor intensity.

[0014] 2. The present application arranges a plurality of unfolded pressure plates with barbed blocks on the extension tube at one end of the anchor rod body, and the pressure plates are pressed against the inner wall of the hole. When tightening, the anchor rod body moves and the plurality of barbed blocks on the pressure plates will firmly press against the inner wall of the hole to prevent the anchor rod body from loosening, thereby greatly improving the stability of the anchor rod body during installation and facilitating the rapid injection of mud at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of an anchor device with high tensile strength disclosed in an embodiment of the present application;

[0016] Figure 2 It is a structural expansion diagram of an anchor device with high tensile strength disclosed in an embodiment of the present application;

[0017] Figure 3 An anchor device with high tensile strength disclosed in the embodiment of the present application Figure 2 A partial enlarged view of area A;

[0018] Explanation of the numbers in the figure: 1. Anchor rod body; 2. Threaded groove; 3. Threaded pipe; 4. Extension pipe; 5. Pad; 6. Slurry stop plug; 7. Sealing cover; 8. Nut; 9. Sealing block; 10. Spiked tube; 11. Fixing sleeve; 12. Extension groove; 13. Fixing block; 14. Pressure plate; 15. Barbed block. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings.

[0020] Reference Figure 1-Figure 3 The embodiment of the present application provides an anchor device with high tensile strength, including an anchor body 1, the outer wall of the anchor body 1 is provided with a threaded groove 2, one end of the anchor body 1 is fixedly connected with a connected threaded tube 3, the other end of the anchor body 1 is fixedly connected with a connected extension tube 4, the inner wall of the anchor body 1 is fixedly connected with a spike tube 10, the outer wall of the extension tube 4 is fixedly connected with a fixed sleeve 11, the outer wall of the fixed sleeve 11 is fixedly connected with a plurality of fixed blocks 13, the outer wall of the fixed block 13 is fixedly connected with a plurality of pressure sheets 14, the outer wall of the pressure sheet 14 is fixedly connected with a plurality of barbed blocks 15, by setting the anchor body 1 into In the hollow state, the outer wall of the anchor body 1 is provided with a threaded groove 2 and the inner wall is fixedly connected with a spike tube 10. The hollow structure reduces the overall weight of the anchor body 1, reduces the burden on the stress-bearing parts, and thus improves the tensile strength. The mortar will fill the threaded groove 2, and the threaded groove 2 can increase the interaction resistance with the mortar, so that the anchor body 1 is more firmly embedded in the soil or concrete, thereby improving the tensile strength. The presence of the spike tube 10 on the inner wall of the anchor body 1 increases the friction between the anchor body 1 and the mortar, and improves the tensile performance of the anchor. The anchor body 1 with a hollow structure is easier to carry and install during construction, reducing labor intensity.

[0021] Reference Figure 1-Figure 3The outer sleeve of the threaded tube 3 is provided with a pad 5, and the end face of the pad 5 close to the anchor body 1 is fixedly connected with a slurry stop plug 6, and the end face of the threaded tube 3 away from the anchor body 1 is connected with a sealing cover 7 by threaded rotation, and the outer wall of the nut 8 is connected with a nut 8 by threaded rotation, and the inside of the sealing cover 7 is fixedly connected with a sealing block 9, and the outer wall of the sealing block 9 is in contact with the inner wall of the threaded tube 3. A pair of extension grooves 12 are provided at one end of the fixed sleeve 11, and the pad 5 is in contact with the wall surface, and the nut 8 is rotated. The nut 8 is against the pad 5, and the anchor body 1 will be brought out of the hole when the nut 8 is tightened, and the pressure plate 14 is close to the inner wall of the hole. When tightening, the anchor body 1 moves and the multiple barbed blocks 15 on the pressure plate 14 will firmly press against the inner wall of the hole to prevent the anchor body 1 from loosening, greatly improving the stability of the anchor body 1 during installation, and facilitating the rapid injection of mud in the later stage.

[0022] Working principle: When in use, the pad 5 and the stop plug 6 are sleeved on the threaded tube 3, and the anchor body 1 with one end of the extension tube 4 is inserted into the hole. The multiple pressure sheets 14 are squeezed by the hole and deformed and approach each other until the anchor body 1 is completely inserted into the hole. The stop plug 6 is inserted into the hole, and the pad 5 is fitted against the wall. The nut 8 is turned, and the nut 8 is pressed against the pad 5. When the nut 8 is tightened, the anchor body 1 will be brought out of the hole. Since the pressure sheet 14 is close to the inner wall of the hole, the multiple barbed blocks 15 on the pressure sheet 14 will firmly press against the inner wall of the hole while the anchor body 1 moves. , to prevent the anchor body 1 from loosening, after tightening the nut 8, inject mortar into the interior of the anchor body 1 and the extension tube 4 through the threaded tube 3, and the mortar is discharged from the extension groove 12 into the hole until the hole is completely filled, and finally the sealing cover 7 is installed on the threaded tube 3. A threaded groove 2 is provided on the anchor body 1, and the mortar will fill the threaded groove 2. The threaded groove 2 can increase the interaction resistance with the mortar, so that the anchor body 1 is more firmly embedded in the soil or concrete, thereby improving the tensile strength. The presence of the spiked tube 10 on the inner wall of the anchor body 1 increases the friction between the anchor body 1 and the mortar, and improves the tensile performance of the anchor.

Claims

1. An anchor device with high tensile strength, comprising an anchor body, characterized in that: The outer wall of the anchor body is provided with a threaded groove, one end of the anchor body is fixedly connected with a connected threaded tube, the other end of the anchor body is fixedly connected with a connected extension tube, the inner wall of the anchor body is fixedly connected with a spike tube, the outer wall of the extension tube is fixedly connected with a fixed sleeve, the outer wall of the fixed sleeve is fixedly connected with a plurality of fixed blocks, the outer wall of the fixed block is fixedly connected with a plurality of pressure plates, and the outer wall of the pressure plate is fixedly connected with a plurality of barbed blocks.

2. The anchor device with high tensile strength according to claim 1, characterized in that: A pad is provided on the outer sleeve of the threaded pipe, and a grout stopper is fixedly connected to the end surface of the pad close to the anchor rod body.

3. The anchor device with high tensile strength according to claim 1, characterized in that: The end surface of the threaded tube away from the end surface is connected with a sealing cover by thread rotation, and the outer wall is connected with a nut by thread rotation.

4. The anchor device with high tensile strength according to claim 3, characterized in that: A sealing block is fixedly connected inside the sealing cover, and the outer wall of the sealing block is in contact with the inner wall of the threaded tube.

5. The anchor device with high tensile strength according to claim 1, characterized in that: A pair of extension grooves are formed at one end of the fixing sleeve.

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