Recoverable centering and fixing device in drill hole of anchor rod body
By designing a combination device of sleeve, fixing disk and fixing plate, the problem of neutralization and recycling of anchor rod body in the drilling hole is solved, and the stable fixing and recycling of anchor rod body is achieved, improving construction efficiency and slurry bonding effect is achieved. .
Patent Information
- Application Number
- CN202420858842.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-24
AI Technical Summary
During the installation of anchor rods, the anchor rod body is easily inclined or offset in the drilling hole, making it difficult to center, and it is difficult to recover the centering device, affecting the bonding effect of the slurry body and the anchor rod.
A fixed fixing device for drilling holes of anchor rods including sleeves, fixing disks and fixing plates is designed. Through the upper width and lower narrow design of sleeves and the alignment holes of fixing disks and fixing plates, the anchor rod body is ensured to be in the same position as the upper width and lower narrowness of the sleeves and the alignment holes of the fixing disks and fixing plates. The drilling holes are centered and completely recycled.
The anchor rod body is centered and fixed in the drilling hole, ensuring the stability of the anchor rod during construction, and can be directly recycled from the drilling hole after use, avoiding the problem of reduced bonding between the slurry and the anchor rod.
Smart Images
Figure CN222183340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geotechnical engineering anchoring, in particular to a recoverable anchor rod body centering and fixing device in a drill hole. Background Art
[0002] Anchor rods are an effective means of support and reinforcement for civil engineering and underground engineering, which can increase the strength and stability of structures. Among them, anti-floating anchor rods are widely used by the public. In order to ensure its anti-floating effect, the length of anti-floating anchor rods is usually longer than that of ordinary anchor rods. In the process of lowering and installing anchor rods in the borehole, tower cranes are usually used for hoisting operations. When lowering the rod, since the diameter of the borehole is much larger than the diameter of the anti-floating anchor rod body, this can easily cause the anchor rod body to tilt in the borehole and offset, making it difficult to ensure that the anchor rod body can be in the center position of the borehole. If a centering device is installed in the middle or deep position of the borehole, it will be difficult to recover the centering device after the anchor rod is centered, and the adhesion between the slurry and the anchor rod body will be reduced during the grouting process.
[0003] Therefore, how to solve the problem of misalignment of the anchor rod body in the drill hole by recyclable means has become a more urgent task at present. Utility Model Content
[0004] The main technical problem to be solved by the utility model is to provide a recyclable anchor rod body centering and fixing device in a drill hole, which can center the anchor rod body in the drill hole and can be completely recovered from the drill hole after use.
[0005] In order to solve the above-mentioned technical problems, the utility model provides a recyclable anchor rod body centering and fixing device in a drilled hole, comprising a sleeve, a fixing disk and a fixing plate; the sleeve is provided with a narrow port located in the drilled hole and a wide port located outside the drilled hole, and the cross-sectional area of the sleeve decreases along the direction of the narrow port at the wide port; the sleeve is also provided with a wall connecting the narrow port and the wide port, and a channel for the anchor rod to pass through; the channel is provided on the inner side of the wall, and the outer side of the wall is used to press against the orifice position of the drilled hole; the fixing disk is clamped in the channel, and the fixing disk includes a centrally arranged rib-piercing hole for the anchor rod to pass through; the fixing plate is embedded in the wide port and is provided with a fixing hole aligned with the rib-piercing hole.
[0006] In a preferred embodiment: the sleeve is in the shape of an axisymmetric truncated cone; and the line connecting the rib-penetrating hole and the fixing hole is located on the symmetry axis of the sleeve.
[0007] In a preferred embodiment: the cross-sectional area of the fixing disk is smaller than the cross-sectional area of the wide port and larger than the cross-sectional area of the narrow port.
[0008] In a preferred embodiment: the fixing plate further includes a support leg; the support leg is disposed at an end portion of the fixing plate close to the wide port; the support leg extends along the wall surface and abuts against the wall surface.
[0009] In a preferred embodiment: the fixing plate is further provided with grouting holes; the grouting holes are symmetrically arranged on both sides of the fixing holes.
[0010] In a preferred embodiment: the fixing plate is further provided with pipe penetration holes; the number of the pipe penetration holes corresponds to the number of the grouting holes.
[0011] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:
[0012] 1. The utility model provides a recoverable anchor rod body centering and fixing device in a drill hole. Since the sleeve is designed to be wide at the upper end and narrow at the lower end, after one end of the narrow port of the sleeve is inserted into the drill hole, due to the size difference between the upper and lower ends of the sleeve, the sleeve can be pressed against the hole mouth position of the drill hole through the wall surface; the sleeve also has a channel for the anchor rod body to pass through, a fixing plate is clamped in the channel, a reinforcement hole is provided at the center position of the fixing plate, and a fixing plate is also embedded in the wide end of the sleeve, the fixing hole of the fixing plate and the reinforcement hole of the fixing plate are aligned, so that the anchor rod body passes through the fixing hole and the reinforcement hole in turn, and finally extends out from the narrow port, so that the anchor rod body is centered and fixed during the rod lowering process in the drill hole, and at the same time, the device can be directly detached from the drill hole and pulled out after use to complete recovery.
[0013] 2. The utility model provides a recyclable anchor rod body centering and fixing device in a drill hole. The sleeve, fixing disc and fixing plate can be designed and manufactured in advance according to the size of the anchor rod body and construction requirements. When the rod body is lowered into the drill hole for construction, it can be directly put into use through combined assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the device described in the preferred embodiment 1 of the utility model;
[0015] Figure 2 It is a front view of the sleeve in the preferred embodiment 1 of the utility model;
[0016] Figure 3 It is a top view of the sleeve in the preferred embodiment 1 of the utility model;
[0017] Figure 4 for Figure 3 AA section view;
[0018] Figure 5 It is a front view of the fixing plate in the preferred embodiment 1 of the utility model;
[0019] Figure 6It is a top view of the fixing plate in the preferred embodiment 1 of the utility model;
[0020] Figure 7 for Figure 6 BB cross-section diagram;
[0021] Figure 8 It is a front view of the fixed plate in the preferred embodiment 1 of the utility model;
[0022] Fig. 9 It is a top view of the fixed plate in the preferred embodiment 1 of the utility model;
[0023] In the figure: sleeve 1; narrow port 11; wide port 12; wall 13; channel 14; fixing plate 2; rib through hole 21; pipe through hole 22; fixing plate 3; fixing hole 31; support leg 32; grouting hole 33. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.
[0027] Example 1
[0028] refer to Figure 1-Figure 9This embodiment provides a recyclable anchor rod body centering and fixing device in a borehole, comprising a sleeve 1, a fixing plate 2 and a fixing plate 3. The sleeve 1 is provided with a narrow port 11 located in the borehole and a wide port 12 located outside the borehole, and the cross-sectional area of the sleeve 1 is reduced along the direction of the narrow port 11. The sleeve 1 is also provided with a wall surface 13 connecting the narrow port 11 and the wide port 12, and a channel 14 for the anchor rod to pass through; the channel 14 is provided on the inner side of the wall surface 13, and the outer side of the wall surface 13 is used to press against the orifice position of the borehole.
[0029] In this embodiment, the sleeve 1 is designed to be large at the upper end and small at the lower end, that is, the upper end is a wide port 12 and the lower end is a narrow port 11. The narrow port 11 of the sleeve 1 is inserted into the borehole. Due to the size difference between the upper and lower ends of the sleeve, the sleeve 1 can be pressed against the opening of the borehole through the wall 13. The diameter of the narrow port 11 of the sleeve 1 is smaller than the diameter of the borehole, and the narrow port 11 of the sleeve 1 is inside the borehole. The diameter of the wide port 12 of the sleeve 1 is larger than the diameter of the borehole, and the wide port 12 of the sleeve 1 is outside the borehole. Since the wide port 12 of the sleeve 1 is larger than the diameter of the borehole, a part of the sleeve 1 is always outside the borehole, and the entire sleeve 1 will not fall into the borehole. After the device is used, the sleeve can be directly removed from the borehole position and recycled for subsequent reuse.
[0030] The fixed disk 2 is clamped in the channel 14, and the fixed disk 2 includes a centrally arranged through-rib hole 21 for the anchor rod to pass through. The through-rib hole 21 can fix the anchor rod body to prevent the rod body from tilting. In detail, the fixed disk 2 is a flat cylindrical shape, and the through-rib hole 21 is located at the center of the fixed disk 2. The anchor rod body can pass through the through-rib hole 21 and be fixed at the center of the fixed disk 2. The cross-sectional area of the fixed disk 2 is smaller than the cross-sectional area of the wide port 12, and larger than the cross-sectional area of the narrow port 11, so as to ensure that the fixed disk 2 can be clamped in the channel 14 and will not fall out of the narrow port 11. The fixed disk 2 is also provided with a through-pipe hole 22, and the through-pipe hole 22 can not only fix the external grouting pipe for filling concrete, but also facilitate the installation and removal of the fixed disk 2 in the channel 14 of the sleeve 1.
[0031] The fixing plate 3 is embedded in the wide port 12 and is provided with a fixing hole 31 aligned with the reinforcing hole 21. The fixing hole 31 of the fixing plate 3 is aligned with the reinforcing hole 21 of the fixing plate 2, so that the anchor rod body passes through the fixing hole 31 and the reinforcing hole 21 in sequence, and finally extends from the narrow port 11, so as to realize the centering and fixing of the anchor rod body in the drilled hole. The apertures of the fixing hole 31 and the reinforcing hole 21 are adapted to the diameter of the anchor rod body. The fixing plate 3 is also provided with grouting holes 33, which are symmetrically arranged on both sides of the fixing hole 31. In this embodiment, the grouting holes 33 are arranged on both sides of the fixing plate 3 at a distance of 10 cm from the edge of the plate. The number of the grouting holes 33 corresponds to the number of the pipe-penetrating holes 22. When grouting is performed, the external grouting pipe is inserted into the grouting holes 33 and the pipe-penetrating holes 22 in sequence, and then the drilled hole is filled with concrete.
[0032] In detail, in the present embodiment, the shape of the sleeve 1 is preferably an axisymmetric truncated cone, and the line connecting the rib-piercing hole 21 and the fixing hole 31 is located on the symmetry axis of the sleeve 1 .
[0033] In order to better nest the fixing plate 3 in the wide port 12, the fixing plate 3 further includes a leg 32. The leg 32 is disposed at the end of the fixing plate 3 close to the wide port 12, and the leg 32 extends along the wall surface 13 and abuts against the wall surface 13. The leg 32 has a certain curvature and length to better fit on the curved surface of the wall surface 13, thereby achieving a better fixing effect.
[0034] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.
Claims
1. A recyclable anchor rod body centering and fixing device in a drilling hole, characterized in that: It includes a sleeve, a fixing disk and a fixing plate; the sleeve is provided with a narrow port located inside the drilled hole and a wide port located outside the drilled hole, and the cross-sectional area of the sleeve decreases along the direction of the narrow port at the wide port; the sleeve is also provided with a wall connecting the narrow port and the wide port, and a channel for the anchor rod to pass through; the channel is provided on the inner side of the wall, and the outer side of the wall is used to press against the orifice position of the drilled hole; the fixing disk is clamped in the channel, and the fixing disk includes a centrally arranged rib-piercing hole for the anchor rod to pass through; the fixing plate is embedded in the wide port, and is provided with a fixing hole aligned with the rib-piercing hole.
2. A recyclable anchor rod body centering and fixing device in a drilling hole according to claim 1, characterized in that: The sleeve is in the shape of an axisymmetric truncated cone; the line connecting the rib-penetrating hole and the fixing hole is located on the symmetry axis of the sleeve.
3. A recyclable anchor rod body centering and fixing device in a drilling hole according to claim 1, characterized in that: The cross-sectional area of the fixing disk is smaller than the cross-sectional area of the wide port and larger than the cross-sectional area of the narrow port.
4. A recyclable anchor rod body centering and fixing device in a drilling hole according to claim 1, characterized in that: The fixing plate further comprises a supporting leg; the supporting leg is arranged at an end portion of the fixing plate close to the wide port; the supporting leg extends along the wall surface direction and abuts against the wall surface.
5. A recyclable anchor rod body centering and fixing device in a drilling hole according to claim 1, characterized in that: The fixing plate is also provided with grouting holes; the grouting holes are symmetrically arranged on both sides of the fixing holes.
6. A recyclable anchor rod body centering and fixing device in a drilling hole according to claim 5, characterized in that: The fixing plate is also provided with pipe penetration holes; the number of the pipe penetration holes corresponds to the number of the grouting holes.