Stainless steel double-anchoring anchor bolt
Through the expansion and reinforcement method of stainless steel double anchor anchor bolts, the problem of existing anchor bolts affecting the appearance is solved, and the wall surface is smooth and stable.
Patent Information
- Application Number
- CN202422786673.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-11-14
AI Technical Summary
After the existing anchor bolts expand and reinforce, the nuts and screws on the surface of the wall cannot be removed, which affects the aesthetics.
Stainless steel double anchor anchor bolts are used to set up grouting holes and grouting chambers at the end of the anchor rod, and the expansion structure abuts the pre-punched inner wall, and inject grouting material to make the anchor plate herniated position thin, so that the outer surface of the wall is flat.
It increases the aesthetics of the wall surface and improves the stability and load-bearing capacity of the anchoring.
Smart Images
Figure CN223203429U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of anchor bolt technology, and in particular to a stainless steel double-anchor anchor bolt. Background Art
[0002] In construction, bridge, mechanical fixing and other projects, anchor bolts are often needed to fix structural parts, equipment or structures to existing concrete, stone and other substrates. The stability of the anchor bolts directly affects the stability of the anchoring.
[0003] Existing anchor bolts usually use expansion bolts, which are usually made of metal or stainless steel, and an expansion cylinder is provided on the outside of the expansion bolt. The tail of the expansion bolt is a tail block with a diameter larger than the expansion cylinder. When using the expansion bolt for anchoring, the staff clamps the expansion bolt into the inside of the pre-drilled hole and then tightens the bolt. At this time, the tail block slides toward the direction close to the expansion cylinder, and the tail block slides into the inside of the expansion cylinder, causing the outer wall of the expansion cylinder to expand and abut against the inner wall of the pre-drilled hole. At this time, the expansion bolt reaches the tightening force required for anchoring.
[0004] After the anchor bolts are expanded and reinforced, the nuts and screw rods growing out of the wall cannot be removed, which affects the aesthetics of the wall surface and requires improvement. Utility Model Content
[0005] In order to make the wall surface smooth after the double-anchor anchor bolt is expanded and reinforced, thereby increasing the aesthetics of the wall surface, the present application provides a stainless steel double-anchor anchor bolt.
[0006] This application provides a stainless steel double anchor bolt, which adopts the following technical solution:
[0007] A stainless steel double-anchor anchor bolt comprises an anchor rod and an anchor plate installed at the end of the anchor rod, a grouting hole is opened at the end of the anchor rod close to the anchor plate, a grouting cavity is opened inside the anchor rod, the grouting hole is connected to the grouting cavity, and an expansion structure is provided at the end of the anchor rod away from the anchor plate, and the expansion structure can abut against the inner wall of a pre-drilled hole.
[0008] By adopting the above technical solution, when the staff uses the double-anchor anchor bolt, the staff installs the double-anchor anchor bolt to the inside of the pre-drilled hole. At this time, the expansion structure faces the inside of the wall, and the anchor plate is located at the opening position of the pre-drilled hole. Then the staff controls the expansion structure to expand through the grouting hole. At this time, the expansion structure provides anchoring force for the double-anchor anchor bolt, and the staff introduces grouting material into the inside of the grouting cavity. In this setting, the protruding position of the anchor plate is thin, so that after the double-anchor anchor bolt is expanded and reinforced, the surface of the wall is smooth, which increases the beauty of the wall surface.
[0009] Optionally, one end of the anchor rod away from the expansion structure is in a flange structure, the anchor plate abuts against the flange structure, and the flange structure is used to limit the sliding of the anchor plate toward the direction of the anchor rod away from the expansion structure.
[0010] By adopting the above technical solution, the setting of the anchor rod effectively limits the sliding of the anchor plate toward the anchor rod away from the expansion structure, increases the stability of the anchor plate when working on the anchor rod, and prevents it from shifting during the installation process, thereby improving the overall bearing capacity of the double-anchor anchor bolt.
[0011] Optionally, a grouting hole is provided on the side wall of the anchor rod, and two openings of the grouting hole are respectively connected to the grouting cavity and the interior of the pre-drilled hole.
[0012] By adopting the above technical solution, the overflow hole is connected to the grouting chamber and the interior of the pre-drilled hole respectively, so that the grouting material flows out from the grouting chamber through the overflow hole, filling the gap between the anchor rod and the pre-drilled hole, achieving the second anchoring effect and improving the overall stability and reliability of the double-anchor anchor bolt.
[0013] Optionally, the overflow holes are opened at intervals on the outer wall of the anchor rod, and a plurality of the overflow holes are arranged along the length direction of the anchor rod.
[0014] By adopting the above technical solution, this setting enables the grouting material to be more evenly distributed in the pores around the anchor rod, reducing the possibility of gaps between the anchor rod and the pre-drilled hole, thereby improving the anchoring force and stability.
[0015] Optionally, the side wall of the anchor rod is further provided with a plurality of overflow holes, the plurality of overflow holes are arranged along the length direction of the anchor rod, and the length of the overflow hole opening is greater than the length of the grouting hole opening.
[0016] By adopting the above technical solution, this setting enables the double anchor bolts to evenly distribute the grouting material into the wall material around the anchor rod through multiple overflow holes when injecting the grouting material, further reducing the gap between the anchor rod and the pre-drilled hole.
[0017] Optionally, the expansion structure includes several expansion shells and expansion pins, the expansion shells are rotatably connected to the anchor rods, an expansion cavity is formed between the several expansion shells, the expansion cavity is connected to the grouting cavity, and the inner diameter of the expansion cavity is smaller than the inner diameter of the grouting cavity, the expansion pins are interference fit with the grouting cavity, and the side walls of the expansion pins can abut against the inner wall of the expansion shells.
[0018] By adopting the above technical solution, when the staff uses the double-anchor anchor bolt, the staff controls the expansion pin to slide toward the expansion shell inside the grouting cavity. At this time, the expansion pin enters the interior of the expansion cavity. The outer diameter of the expansion pin is larger than the inner diameter of the expansion cavity, thereby expanding the expansion shell. The outer wall of the expansion shell abuts against the inner wall of the pre-drilled hole. At this time, the expansion shell provides anchoring force for the double-anchor anchor bolt.
[0019] Optionally, the expansion structure further includes an expansion boss, which is fixed to the inner wall of the expansion shell, and the outer wall of the expansion pin can abut against the side wall of the expansion boss.
[0020] By adopting the above technical solution, when the expansion pin slides into the expansion cavity, the setting of the expansion boss enables the expansion shell to generate a greater radial expansion force, further improving the expansion effect of the expansion shell and enhancing the anchoring force of the double-anchor anchor bolt. In addition, the setting of the expansion boss makes the positioning of the expansion pin in the expansion cavity more stable, reducing the possibility of the expansion pin slipping during the grouting process.
[0021] Optionally, the end of the expansion pin away from the anchor plate is in a convergent structure.
[0022] By adopting the above technical solution, when the staff strikes the expansion pin, the contraction structure makes the process of the expansion pin entering the expansion cavity simpler, thereby increasing the stability of the expansion process.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When the staff uses the double-anchor anchor bolt, the staff installs the double-anchor anchor bolt toward the inside of the pre-drilled hole, so that the expansion structure faces the inside of the pre-drilled hole, and the anchor plate is located at the opening position of the pre-drilled hole. Then the staff controls the expansion of the expansion structure through the grouting hole and the grouting cavity. At this time, the expansion structure cooperates with the pre-drilled hole, and then the staff injects grouting material into the inside of the grouting cavity. This setting makes the wall surface smooth after the double-anchor anchor bolt is expanded and reinforced, which increases the beauty of the wall surface.
[0025] 2. When the staff injects grouting material into the grouting cavity, the grouting material flows into the pre-drilled hole through the overflow hole and the overflow hole. When the grouting material solidifies, the anchor rod is anchored to the inner wall of the pre-drilled hole under the action of the grouting material, realizing the second anchoring effect of the double anchor bolt. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of a stainless steel double anchor bolt in an embodiment of the present application.
[0027] Figure 2 It is a cross-sectional view of a stainless steel double anchor bolt in an embodiment of the present application.
[0028] Figure 3 This is an implementation diagram of the stainless steel double anchor bolt in the embodiment of the present application.
[0029] Figure numerals: 1. Anchor rod; 2. Anchor plate; 3. Grouting hole; 4. Grouting cavity; 5. Expansion structure; 6. Overflow hole; 7. Overflow hole; 51. Expansion shell; 52. Expansion pin; 53. Expansion boss; 8. Expansion cavity; 9. Pre-drilled hole; 10. Buried hole. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3 This application is described in further detail.
[0031] The embodiment of the present application discloses a stainless steel double anchor bolt.
[0032] Reference Figure 1 A stainless steel double-anchor anchor bolt comprises an anchor rod 1 that can be clamped on the inner wall of a pre-drilled hole 9, an anchor plate 2 installed on the side wall of the anchor rod 1, and an expansion structure 5. The expansion structure 5 is fixed to the end of the anchor piece, and the anchor plate 2 is installed on the end of the anchor rod 1 away from the expansion structure 5. A grouting cavity 4 is opened inside the anchor rod 1, and a grouting hole 3 is opened at the end of the anchor rod 1 away from the expansion structure 5. The grouting hole 3 is connected to the grouting cavity 4. An overflow hole 6 is opened on the side wall of the anchor rod 1, and the overflow hole 6 is also connected to the grouting cavity 4.
[0033] Specifically, when the staff use double-anchor anchor bolts to construct on the wall, the staff first open a pre-drilled hole 9 on the outer wall of the wall for installing the double-anchor anchor bolts, and then the staff clamp the double-anchor anchor bolts to the inner wall of the pre-drilled hole 9. At this time, the expansion structure 5 faces the inside of the wall, the anchor plate 2 abuts against the outer surface of the wall, and the grouting hole 3 is located on the outer wall of the wall; the staff manipulates the expansion structure 5 to expand so that the double-anchor anchor bolts are expanded and anchored. After expansion and anchoring, the staff introduces grouting material into the inside of the grouting hole 3, and the grouting material flows into the inside of the grouting cavity 4 and fills it. Then the grouting material flows out from the overflow hole 7 into the pre-drilled hole 9 until the grouting material fills the gap between the inner wall of the pre-drilled hole 9 and the anchor piece. At this time, the staff stops injecting the grouting material, and the construction of the double-anchor anchor bolt is completed.
[0034] Reference Figure 1 Six overflow holes 6 are evenly spaced along the length of the anchor rod 1. The openings of the overflow holes 6 are arranged in a rectangular structure, and the four corners of the overflow holes 6 are rounded. Opposite to the six overflow holes 6, six overflow holes 6 are also opened at positions on the circumference of the anchor rod 1. Five overflow holes 7 are also opened along the length of the anchor rod 1. The five overflow holes 7 are arranged at intervals. The openings of the overflow holes 7 are also arranged in a rectangular structure, and the four corners of the overflow holes 7 are rounded. The length of the overflow hole 7 opening is greater than the length of the overflow hole 6 opening.
[0035] Reference Figure 1 and Figure 2 The expansion structure 5 includes two expansion shells 51 rotatably connected to the ends of the anchor rod 1 and an expansion pin 52 arranged inside the grouting cavity 4. The two expansion shells 51 are mirror-imaged with the diameter of the end face of the anchor rod 1 as the axis. An expansion cavity 8 is formed between the two expansion shells 51. The expansion cavity 8 is connected to the grouting cavity 4. The inner diameter of the expansion cavity 8 is smaller than the inner diameter of the grouting cavity 4. The expansion pin 52 is interference fit with the grouting cavity 4. The end of the expansion pin 52 close to the expansion shell 51 is a convergent structure, that is, the outer diameter of the expansion pin 52 close to the expansion shell 51 is smaller than the outer diameter of the expansion pin 52 away from the expansion shell 51. The expansion pin 52 can slide close to the expansion shell 51 so that the outer wall of the expansion pin 52 abuts against the inner wall of the expansion shell 51; a knocking expansion pin positioning tool for knocking the expansion pin 52 is also provided, which is used to control the expansion pin 52 to slide inside the grouting cavity 4.
[0036] When the staff installs the double-anchor anchor bolt, the staff operates the expansion pin positioning tool to knock the expansion pin 52 through the grouting hole 3, so that the expansion pin 52 slides inside the grouting cavity 4. When the expansion pin 52 slides to the position of the expansion shell 51, the side wall of the expansion pin 52 abuts against the inner walls of the two expansion shells 51. The outer diameter of the expansion pin 52 is larger than the inner diameter of the expansion cavity 8, so that the expansion pin 52 pushes the two expansion shells 51 away from each other. At this time, the outer walls of the two expansion shells 51 abut against the inner wall of the pre-drilled hole 9. Then the staff injects grouting material through the grouting hole 3. Under the double anchoring action of the expansion shell 51 and the grouting material, the double-anchor anchor bolt is stably fixed to the inner wall of the pre-drilled hole 9.
[0037] Reference Figure 2 The expansion structure 5 also includes an expansion boss 53 fixed integrally with the inner wall of the expansion shell 51. The expansion boss 53 is located inside the expansion cavity 8 near the grouting cavity 4. When the staff uses the double-anchor anchor bolt, the staff knocks the expansion pin positioning tool to make the expansion pin 52 slide toward the expansion shell 51. At this time, the outer wall of the expansion pin 52 abuts against the expansion boss 53. During the sliding of the expansion pin 52, the expansion shells 51 on both sides of the expansion pin 52 rotate in the direction away from the expansion pin 52. During this process, the expansion boss 53 always abuts against the expansion pin 52.
[0038] Reference Figure 1 and Figure 3 The end of the anchor rod 1 away from the expansion shell 51 is a flange structure, and the end of the anchor rod 1 away from the expansion shell 51 is bonded and fixed with an anchor disc 2. The side of the anchor disc 2 away from the expansion shell 51 abuts against the flange structure. The flange structure limits the sliding of the anchor disc 2 in the length direction of the anchor rod 1, so that the anchor disc 2 cannot slide out of the anchor rod 1 through the end of the anchor rod 1 away from the expansion shell 51.
[0039] When the staff uses the double-anchor anchor bolt, the staff installs the double-anchor anchor bolt into the pre-drilled hole 9, and the anchor rod 1 and the expansion shell 51 slide on the inner wall of the pre-drilled hole 9. Then the side of the anchor plate 2 close to the expansion shell 51 abuts against the outer surface of the wall. At this time, the anchor plate 2 can bear the load transmitted by the anchor rod 1 and transmit the load to the wall, thereby realizing the stability of the anchoring work of the double-anchor anchor bolt.
[0040] In addition, the staff can also open a pre-drilled hole 9 on the outer wall of the wall, and then open a buried hole 10 on the outer wall of the wall at a position coaxial with the pre-drilled hole 9. The radius of the buried hole 10 is larger than the anchor plate 2, so that the anchor plate 2 is located at the position of the buried hole 10 when the staff installs the double-anchor anchor bolt. After the double-anchor anchor bolt is installed, the staff applies covering material on the outer surface of the wall, further increasing the beauty of the outer surface of the wall.
[0041] The implementation principle of a stainless steel double anchor bolt in the embodiment of the present application is as follows: when the staff uses the double anchor bolt, the staff installs the double anchor bolt on the inner wall of the pre-drilled hole 9, at this time the expansion shell 51 faces the inside of the pre-drilled hole 9, and the anchor plate 2 is located at the opening position of the pre-drilled hole 9, and then the staff uses a knocking expansion pin positioning tool to knock the expansion pin 52 through the grouting hole 3, so that the expansion pin 52 slides toward the expansion shell 51, and the end of the expansion pin 52 away from the anchor plate 2 abuts against the inner wall of the expansion shell 51, and then the outer wall of the expansion pin 52 abuts against the expansion boss 53, and the expansion pin 5 2, the expansion shell 51 is pushed outward, and the outer wall of the expansion shell 51 abuts the inner wall of the pre-drilled hole 9, and the first anchoring construction is completed; the staff injects the grouting material into the interior of the grouting cavity 4 through the grouting hole 3, and the grouting material flows into the grouting cavity 4, and then flows into the interior of the pre-drilled hole 9 under the overflow action of the overflow hole 6 and the overflow hole 7. When the grouting material solidifies, the second anchoring construction is completed. In this setting, the protruding position of the anchor plate 2 is thin, and the double-anchor anchor bolts are integrated with the wall, so that after the double-anchor anchor bolts are expanded and reinforced, the wall surface is smooth, which increases the beauty of the wall surface.
[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A stainless steel double anchor bolt, characterized by: The invention comprises an anchor rod (1) and an anchor plate (2) installed at the end of the anchor rod (1); a grouting hole (3) is provided at the end of the anchor rod (1) close to the anchor plate (2); a grouting cavity (4) is provided inside the anchor rod (1); the grouting hole (3) is communicated with the grouting cavity (4); an expansion structure (5) is provided at one end of the anchor rod (1) away from the anchor plate (2); and the expansion structure (5) can abut against the inner wall of a pre-drilled hole.
2. A stainless steel double anchor bolt according to claim 1, characterized in that: One end of the anchor rod (1) away from the expansion structure (5) is a flange structure, and the anchor plate (2) abuts against the flange structure, and the flange structure is used to limit the sliding of the anchor plate (2) toward the direction of the anchor rod (1) away from the expansion structure (5).
3. The stainless steel double anchor bolt according to claim 2, characterized in that: A grouting hole (6) is provided on the side wall of the anchor rod (1), and two openings of the grouting hole (6) are respectively connected to the grouting cavity (4) and the interior of the pre-drilled hole.
4. The stainless steel double anchor bolt according to claim 3, characterized in that: The overflow holes (6) are arranged at intervals on the outer wall of the anchor rod (1), and a plurality of the overflow holes (6) are arranged along the length direction of the anchor rod (1).
5. The stainless steel double anchor bolt according to claim 4, characterized in that: The side wall of the anchor rod (1) is also provided with a plurality of overflow holes (7), which are arranged along the length direction of the anchor rod (1), and the opening length of the overflow hole (7) is greater than the opening length of the overflow hole (6).
6. The stainless steel double anchor bolt according to claim 1, characterized in that: The expansion structure (5) includes a plurality of expansion shells (51) and an expansion pin (52), wherein the expansion shells (51) are rotatably connected to the anchor rod (1), and an expansion cavity (8) is formed between the plurality of expansion shells (51), wherein the expansion cavity (8) is connected to the grouting cavity (4), and the inner diameter of the expansion cavity (8) is smaller than the inner diameter of the grouting cavity (4), and the expansion pin (52) is interference fit with the grouting cavity (4), and the side wall of the expansion pin (52) can abut against the inner wall of the expansion shell (51).
7. The stainless steel double anchor bolt according to claim 6, characterized in that: The expansion structure (5) further comprises an expansion boss (53), wherein the expansion boss (53) is fixed to the inner wall of the expansion shell (51), and the outer wall of the expansion pin (52) can abut against the side wall of the expansion boss (53).
8. The stainless steel double anchor bolt according to claim 7, characterized in that: The end of the expansion pin (52) away from the anchor plate (2) is in a converged structure.