A kind of anti-corrosion prestressed anchor rod

Abstract

The utility model discloses an anti-corrosion prestressed anchor rod, comprising an anchor rod body and an anchor head body. A threaded joint is arranged at the lower end of the anchor rod body. The anchor head body comprises an expanding shell solid anchor head, a self-tapping anchor head and an anchor rod drill bit. A threaded plug interface is arranged on the upper end of the anchor rod body, the expanding shell solid anchor head, the self-tapping anchor head and the anchor rod drill bit. The threaded joint cooperates with the threaded plug interface. A positioning groove is arranged on the anchor rod body. A connecting ring is arranged on the connecting ring. A positioning bolt is arranged on the connecting ring. The positioning bolt cooperates with the positioning groove. Sealing grooves are arranged at both ends of the connecting ring. Sealing tubes are arranged on both sides of the connecting ring. The sealing tubes cooperate with the sealing grooves. The equipment can be combined according to needs to reduce the waste of anchor rod materials caused by different needs. The anti-corrosion structure is effective and stable to ensure stable use.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed anchor rods, and more specifically, to an anti-corrosion prestressed anchor rod. Background Art

[0002] After being inserted into the ground, the anchor rod can reinforce the surrounding rock together, allowing the surrounding rock to support itself, thereby strengthening the structure. It is widely used in the reinforcement and support of slopes, tunnels, dams and other structures, and is an important stabilization equipment in civil engineering.

[0003] In actual use, facing construction in different environments, there are different usage requirements for anchor rods, so anchor rods of different specifications are needed to meet different usage requirements. After the project is completed, a large number of prestressed anchor rods need to be recycled. When used in the next project, if the construction requirements are different, the type and quantity of anchor rods used will also be different. If a large number of anchor rods recycled last time are not put into use, a large amount of waste will be generated, and a large number of new anchor rods will need to be purchased, and a large number of anchor rods will be stored for a long time, which will also require a large space storage cost; moreover, there are often groundwater resources under the ground, so water seepage often occurs in the ground, and the anchor rods sunk into the ground are in contact with water and are easily affected, which accelerates the corrosion of the anchor rods, reduces the strength of the anchor rods, leads to a decrease in support capacity, and makes the support structure unstable; in addition, when the anchor rods are fixed and supported, when they are prestressed, the anchor rod body is deformed by stress, and the common anti-corrosion measures for anchor rods are generally spraying anti-corrosion paint. When the anchor rods are deformed, the paint will be torn, which affects the anti-corrosion capacity. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the utility model provides an anti-corrosion prestressed anchor rod to solve the technical problems mentioned in the background technology that the common prestressed anchor rod has a simple structure and is unstable in use.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-corrosion prestressed anchor rod, comprising an anchor rod body and an anchor head body, wherein the lower end of the anchor rod body is provided with a threaded joint, the anchor head body comprises an expansion shell solid anchor head, a self-tapping anchor head and an anchor drill bit, and the upper end of the anchor rod body, the expansion shell solid anchor head, the self-tapping anchor head and the anchor drill bit are all provided with a threaded plug interface, and the threaded joint cooperates with the threaded plug interface;

[0008] The anchor rod body is provided with a positioning groove, a connecting ring is provided on the anchor rod body, a positioning bolt is provided on the connecting ring, the positioning bolt cooperates with the positioning groove, sealing grooves are provided at both ends of the connecting ring, sealing tubes are provided on both sides of the connecting ring, and the sealing tubes cooperate with the sealing grooves.

[0009] The utility model is further configured that an elastic buffer ring is provided between the connecting ring and the anchor rod body, and an elastic buffer sleeve is provided between the sealing tube and the anchor rod body to provide a buffer protection effect.

[0010] The utility model is further configured that elastic insertion blocks are provided at the upper and lower ends of the elastic buffer sleeve, an elastic insertion groove is provided on the elastic buffer ring, and the elastic insertion block cooperates with the elastic insertion groove to make the buffer structure cooperate.

[0011] The utility model is further configured that anti-corrosion fiber cloth is provided on the outer sides of the elastic buffer ring and the elastic buffer sleeve to further improve the anti-corrosion effect.

[0012] The utility model is further configured that a pad is provided at the upper end of the anchor rod body, and a control nut is provided at the upper end of the pad to facilitate cooperation with the outside.

[0013] The utility model is further configured such that a sinking groove is provided on the connecting ring, a first through-hole is provided in the sinking groove, a second through-hole is provided on the elastic buffer ring, and the positioning bolt cooperates with the sinking groove, the first through-hole and the second through-hole to reduce the influence of the positioning bolt on the installation of the anchor rod.

[0014] The utility model is further configured such that both the connecting ring and the positioning bolt are provided with an anti-corrosion coating to improve the anti-corrosion effect of the connecting ring part.

[0015] The utility model is further configured such that a first sealing ring is provided in the sealing groove, and second sealing rings are provided at both ends of the sealing tube, and the second sealing ring cooperates with the first sealing ring to enhance the sealing effect and ensure the anti-corrosion capability.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides an anti-corrosion prestressed anchor rod, which has the following beneficial effects:

[0018] 1. The anchor rod equipment is formed by the combination of the anchor rod body and the anchor head body. The combination of the threaded joint and the threaded plug interface provides a combinable connection structure, so that multiple anchor rod bodies can be combined to form prestressed anchor rods of different lengths to meet the use requirements. The anchor rod body and the anchor head body can also be detached and matched. Through the combination of the expansion shell anchor head, the self-tapping anchor head and the anchor drill bit, a variety of anchor head bodies are provided. When working, the appropriate one is selected according to the needs. The anchor head body and the anchor rod body are matched to form an anchor rod for support, thereby reducing the storage demand of the anchor rod, the restricted anchor rod structure will become less, the storage pressure will be reduced, and when additional purchases are needed, parts can also be purchased separately to reduce waste after the project is completed.

[0019] 2. The installation structure is provided through the connecting ring to cooperate with the anchor body, and is fixed through the positioning bolts and positioning grooves. The sealing tube is installed on the connecting ring through the cooperation of the sealing groove and the sealing tube, so as to wrap the anchor body, thereby forming a sealed anti-corrosion structure, providing an anti-corrosion effect, which is more stable than paint, greatly improving the service life of the anchor equipment and ensuring the stability of the support work.

[0020] 3. By arranging an elastic buffer ring and an elastic buffer sleeve, a buffer protection mechanism is formed and arranged between the anti-corrosion structure and the anchor rod. When the anchor rod is deformed by prestress, the outer anti-corrosion structure is protected to avoid damage to the anti-corrosion structure, thereby ensuring the stability of the anti-corrosion ability and the anti-corrosion effect, thereby ensuring the stable operation of the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of an anti-corrosion prestressed anchor rod in the utility model;

[0022] Figure 2 This is a schematic diagram of the matching structure of the anchor rod body and the anchor head body in the utility model;

[0023] Figure 3 This is a schematic diagram of the matching structure of the expansion shell anchor head, the self-tapping anchor head and the anchor drill bit in the utility model;

[0024] Figure 4 This is a cross-sectional view of the matching structure of the anchor rod body, the connecting ring and the inner part of the sealing tube in the utility model;

[0025] Figure 5 for Figure 4 A magnified view of the local structure at point A.

[0026] In the figure: 1. anchor rod body; 2. anchor head body; 3. threaded joint; 4. expansion shell anchor head; 5. self-tapping anchor head; 6. anchor rod drill bit; 7. threaded plug interface; 8. positioning groove; 9. connecting ring; 10. positioning bolt; 11. sealing groove; 12. sealing tube; 13. elastic buffer ring; 14. elastic buffer sleeve; 15. elastic insertion block; 16. elastic insertion groove; 17. anti-corrosion fiber cloth; 18. pad; 19. control nut; 20. sinking groove; 21. first through-hole; 22. second through-hole; 23. anti-corrosion coating; 24. first sealing ring; 25. second sealing ring. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-5 , an anti-corrosion prestressed anchor, comprising an anchor body 1 and an anchor head body 2, a threaded joint 3 is provided at the lower end of the anchor body 1, the anchor head body 2 comprises an expansion shell solid anchor head 4, a self-tapping anchor head 5 and an anchor drill bit 6, a threaded plug interface 7 is provided on the upper end of the anchor body 1, the expansion shell solid anchor head 4, the self-tapping anchor head 5 and the anchor drill bit 6, and the threaded joint 3 cooperates with the threaded plug interface 7;

[0031] The anchor rod body 1 is provided with a positioning groove 8, a connecting ring 9 is provided on the anchor rod body 1, a positioning bolt 10 is provided on the connecting ring 9, the positioning bolt 10 cooperates with the positioning groove 8, sealing grooves 11 are provided at both ends of the connecting ring 9, sealing tubes 12 are provided on both sides of the connecting ring 9, and the sealing tubes 12 cooperate with the sealing grooves 11.

[0032] In this embodiment, when using the anchor rod, according to the use requirements, a suitable anchor head body 2 is selected from the expansion shell anchor head 4, the self-tapping anchor head 5 and the anchor drill bit 6, and the threaded joint 3 of the anchor rod body 1 is installed into the threaded plug interface 7. Through the cooperation of the threaded joint 3 and the threaded plug interface 7, the anchor rod body 1 and the anchor head body 2 are connected as a whole. According to the use requirements of different installation depths, through the cooperation of the threaded joint 3 and the threaded plug interface 7, multiple anchor rod bodies 1 are combined together to meet the use requirements of anchor rod reinforcement.

[0033] More specifically, when assembling the anchor body 1, the connecting ring 9 is put on the anchor body 1, and the positioning bolt 10 on the connecting ring 9 is aligned with the positioning groove 8. The connecting ring 9 is fixed to the anchor body 1 through the cooperation of the positioning bolt 10 and the positioning groove 8. Then the sealing tube 12 is installed, and the two sets of sealing tubes 12 are inserted into the sealing groove 11 to cooperate with the connecting ring 9 to form a sealing structure to protect the anchor body 1.

[0034] See also Figure 4 and Figure 5 As an implementation method of buffer protection: an elastic buffer ring 13 is provided between the connecting ring 9 and the anchor body 1, and an elastic buffer sleeve 14 is provided between the sealing tube 12 and the anchor body 1.

[0035] Specifically, when installing the connecting ring 9, the elastic buffer ring 13 is installed between the connecting ring 9 and the anchor body 1. When installing the sealing tube 12, the elastic buffer sleeve 14 is installed between the sealing tube 12 and the anchor body 1. The elastic buffer ring 13 and the elastic buffer sleeve 14 cooperate to reduce the impact of stress.

[0036] Please refer to Figure 3-Figure 5 As a further implementation method of buffer protection: elastic insertion blocks 15 are provided at the upper and lower ends of the elastic buffer sleeve 14 , and an elastic insertion groove 16 is opened on the elastic buffer ring 13 , and the insertion groove 16 cooperates with the insertion block 15 .

[0037] Specifically, the elastic insert block 15 is inserted into the elastic insert groove 16 , so that the elastic buffer ring 13 and the elastic buffer sleeve 14 are integrated into one.

[0038] Please refer to 5 as a further implementation of the buffer protection: an anti-corrosion fiber cloth 17 is provided on the outside of the elastic buffer ring 13 and the elastic buffer sleeve 14.

[0039] Specifically, the anti-corrosion fiber cloth 17 provides anti-corrosion capability, thereby further improving the protection capability of the anchor body 1 .

[0040] Please refer to Figure 1 As a further implementation of the anchor rod body: a pad 18 is provided at the upper end of the anchor rod body 1, and a control nut 19 is provided at the upper end of the pad 18.

[0041] Specifically, by the cooperation of the backing plate 18, the grout stopper and the control nut 19, and by the cooperation of the control nut 19 and the anchor body 1, the movement of the backing plate 18 is controlled to support and clamp the backing plate 18 with the outside of the building.

[0042] Please refer to Figure 3-Figure 5 As a further implementation of the connecting ring: a sinking groove 20 is opened on the connecting ring 9, a first through-hole 21 is opened in the sinking groove 20, a second through-hole 22 is opened on the elastic buffer ring 13, and the positioning bolt 10 cooperates with the sinking groove 20, the first through-hole 21 and the second through-hole 22.

[0043] Specifically, when installing the positioning bolt 10, the positioning thread is passed through the first through hole 21 and the second through hole 22, so that the positioning bolt 10 cooperates with the positioning groove 8, and the bolt cap part of the positioning bolt 10 will enter and sink into the groove 20, which will not affect the work of the anchor rod.

[0044] Please refer to Figure 5 As a further implementation of the connecting ring: an anti-corrosion coating 23 is provided on both the connecting ring 9 and the positioning bolt 10.

[0045] Specifically, the anti-corrosion coating 23 is used to provide protection for the surfaces of the connecting ring 9 and the positioning bolts 10, thereby ensuring structural stability.

[0046] Please refer to Figure 3-Figure 5 As a further implementation of the sealing tube: a first sealing ring 24 is provided in the sealing groove 11 , and second sealing rings 25 are provided at both ends of the sealing tube 12 , and the second sealing ring 25 cooperates with the first sealing ring 24 .

[0047] Specifically, when the end face of the sealing tube 12 is inserted into the sealing groove 11 , the second sealing ring 25 cooperates with the first sealing ring 24 to increase the sealing ability and ensure the sealing effect of the connection between the sealing tube 12 and the connecting ring 9 .

[0048] In summary, when the overall device is in use or running:

[0049] When anchor equipment is used for support and reinforcement, according to the needs of use, a suitable anchor head body 2 is selected from the expansion shell anchor head 4, the self-drilling anchor head 5 and the anchor drill bit 6, and the threaded joint 3 of the anchor body 1 is installed into the threaded plug interface 7. Through the cooperation of the threaded joint 3 and the threaded plug interface 7, the anchor body 1 and the anchor head body 2 are connected as a whole, and a sufficient number of anchor bodies 1 are prepared. According to the use requirements of different installation depths, multiple anchor bodies 1 are combined together through the cooperation of the threaded joint 3 and the threaded plug interface 7 to meet the use requirements of anchor reinforcement. After use, the anchor body 1 and each group of anchor heads are recycled and classified, and a new anchor structure is formed in subsequent use to work, which is convenient for reuse, thereby reducing the waste of the anchor body 1 and the anchor head after the use of the previous project.

[0050] When assembling the anchor body 1, first install the elastic buffer ring 13 and the anti-corrosion fiber cloth 17, then put the connecting ring 9 on the anchor body 1, align the positioning bolt 10 on the connecting ring 9 with the positioning groove 8, and the elastic buffer ring 13 is located between the connecting ring 9 and the anchor body 1, pass the positioning thread through the first through-hole 21 and the second through-hole 22, so that the positioning bolt 10 cooperates with the positioning groove 8, and the bolt cap part of the positioning bolt 10 will enter and sink into the groove 20, which will not affect the subsequent work of the anchor, and through the cooperation of the positioning bolt 10 and the positioning groove 8, fix the connecting ring 9 on the anchor body 1, and then install the sealing tube 12, and install the elastic buffer sleeve 14 between the sealing tube 12 and the anchor body 1, so that the elastic insertion block 15 is inserted into the elastic insertion groove 16, so that the elastic buffer ring 13 and the elastic buffer sleeve 14 are integrated, and the two sets of sealing tubes 12 are inserted into the sealing groove 11, and cooperate with the connecting ring 9. The end face of the sealing tube 12 is inserted into the sealing groove 11, and it will pass through the second sealing ring 25 and The first sealing ring 24 cooperates to increase the sealing ability, ensure the sealing effect of the connection between the sealing tube 12 and the connecting ring 9, form a sealing structure, protect the anchor body 1, and when the rod body is supported and fixed in the rock formation, through the cooperation of the pad 18, the slurry stopper and the control nut 19, through the cooperation of the control nut 19 and the anchor body 1, the movement of the pad 18 is controlled to support and clamp it with the outside of the building, and the cooperation of the sealing tube 12 and the connecting ring 9 provides an anti-corrosion effect, and the anti-corrosion fiber cloth 17 further provides anti-corrosion ability, and the anti-corrosion coating 23 provides anti-corrosion ability for the surface of the connecting ring 9 and the positioning bolt 10, to ensure the stable operation of the anchor rod, and when receiving prestressing, the anchor rod body 1 is deformed, and through the cooperation of the elastic buffer ring 13 and the elastic buffer sleeve 14, the anchor rod body 1 is separated from the outer anti-corrosion structure, and the deformation of the anchor rod is adapted through elastic deformation, avoiding the influence of the prestress of the anti-corrosion structure, ensuring the structural stability of the prestressed anchor rod, and ensuring the service life.

[0051] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-corrosion prestressed anchor rod, comprising an anchor rod body (1) and an anchor head body (2), characterized in that: The lower end of the anchor rod body (1) is provided with a threaded joint (3); the anchor head body (2) comprises an expansion shell fixed anchor head (4), a self-tapping anchor head (5) and an anchor drill bit (6); the upper end of the anchor rod body (1), the expansion shell fixed anchor head (4), the self-tapping anchor head (5) and the anchor drill bit (6) are all provided with a threaded plug interface (7); the threaded joint (3) cooperates with the threaded plug interface (7); The anchor rod body (1) is provided with a positioning groove (8), the anchor rod body (1) is provided with a connecting ring (9), the connecting ring (9) is provided with a positioning bolt (10), the positioning bolt (10) cooperates with the positioning groove (8), sealing grooves (11) are provided at both ends of the connecting ring (9), sealing tubes (12) are provided on both sides of the connecting ring (9), and the sealing tubes (12) cooperate with the sealing grooves (11).

2. The anti-corrosion prestressed anchor rod according to claim 1 is characterized in that: An elastic buffer ring (13) is provided between the connecting ring (9) and the anchor body (1), and an elastic buffer sleeve (14) is provided between the sealing tube (12) and the anchor body (1).

3. The anti-corrosion prestressed anchor rod according to claim 2 is characterized in that: The elastic buffer sleeve (14) is provided with elastic insertion blocks (15) at the upper and lower ends, the elastic buffer ring (13) is provided with an elastic insertion groove (16), and the elastic insertion block (15) cooperates with the elastic insertion groove (16).

4. The anti-corrosion prestressed anchor rod according to claim 2 is characterized in that: Anti-corrosion fiber cloth (17) is provided on the outer sides of the elastic buffer ring (13) and the elastic buffer sleeve (14).

5. The anti-corrosion prestressed anchor rod according to claim 1 is characterized in that: A backing plate (18) is provided at the upper end of the anchor rod body (1), and a control nut (19) is provided at the upper end of the backing plate (18).

6. The anti-corrosion prestressed anchor rod according to claim 2 is characterized in that: The connecting ring (9) is provided with a sinking groove (20), a first through-hole (21) is provided in the sinking groove (20), a second through-hole (22) is provided on the elastic buffer ring (13), and the positioning bolt (10) cooperates with the sinking groove (20), the first through-hole (21) and the second through-hole (22).

7. The anti-corrosion prestressed anchor rod according to claim 6 is characterized in that: The connecting ring (9) and the positioning bolt (10) are both provided with an anti-corrosion coating (23).

8. The anti-corrosion prestressed anchor rod according to claim 1, characterized in that: A first sealing ring (24) is provided in the sealing groove (11), and second sealing rings (25) are provided at both ends of the sealing tube (12), and the second sealing ring (25) cooperates with the first sealing ring (24).

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