Anchor rod with lining

Abstract

The utility model provides an anchor rod with a lining, and relates to the technical field of anchor rods, the anchor rod comprises a grouting anchor rod, a butt joint installation assembly is installed at the bottom end of the grouting anchor rod, the butt joint installation assembly comprises a connector, a fixing hole, a drill bit and a fixing bolt, the connector is installed at the bottom end of the grouting anchor rod, and the fixing hole is formed in the bottom end of the grouting anchor rod. The fixing hole is formed in the front face of the connector, the connector is sleeved with the drill bit, the fixing bolt is installed on the front face of the drill bit in a penetrating mode, and the fixing bolt is in threaded connection with the fixing hole. Due to the fact that the top of the drill bit is of the hollow structure, the drill bit can be directly arranged on the outer side of the connector in a sleeved mode, then the fixing bolt penetrates through the drill bit in a rotating mode to enter the fixing hole, and therefore the drill bit is fixed and can be stably used in the grouting anchor rod. And the drill bit can be taken down and replaced, so that the drill bit is more convenient to replace, and the drill bit of the grouting anchor rod is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolt technology, specifically to an anchor bolt with a bushing. Background Technology

[0002] This anchor is a grouting anchor. The anchor body of the grouting anchor adopts a hollow design, with the central hole serving as a high-pressure air and water channel for drilling and a grouting channel. The outer surface of the anchor has a standard large-pitch thread structure along its entire length. The thread structure facilitates the cutting and extension of the anchor and increases the bonding area between the anchor body and the grouting material compared to a smooth anchor body, thereby improving the anchoring force.

[0003] Chinese Patent Publication No. (CN207296463U) discloses an anchor rod with a bushing, relating to the field of building reinforcement and repair. It is shallowly buried and suitable for situations with weak stress. The aim is to provide an anchor rod with a bushing, the advantage of which is improved stability of the anchor rod in the wall. The key technical points are: an anchor rod with a bushing, comprising an anchor rod with a bushing; the anchor rod includes an anchor rod blind channel internally disposed along its length; a grout outlet disposed at the connection between the anchor rod and the bushing for cement grout to overflow from the anchor rod; and a grout inlet disposed at one end of the anchor rod for cement grout to enter the anchor rod blind channel.

[0004] One type of bushing anchor rod in the published patent documents has a bushing installed. With the help of the bushing, it can solve the problem of existing anchor rods being difficult to fix in the wall. However, this anchor rod is not convenient to replace the drill bit at the bottom according to the usage environment.

[0005] Therefore, to address the above problems, a bushing-equipped anchor bolt is now being developed. Utility Model Content

[0006] The purpose of this utility model is to provide an anchor rod with a bushing to solve the technical problem mentioned in the background art that the anchor rod is not convenient for replacing the drill bit at the bottom according to the usage environment.

[0007] The technical solution of this utility model is implemented as follows: an anchor rod with a bushing, including a grouting anchor rod, wherein a butt mounting assembly is installed at the bottom end of the grouting anchor rod, the butt mounting assembly includes a connector, a fixing hole, a drill bit and a fixing bolt, the connector is installed at the bottom end of the grouting anchor rod, the fixing hole is opened on the front of the connector, the drill bit is fitted on the outside of the connector, and the fixing bolt is installed through the front of the drill bit and is threadedly connected to the fixing hole.

[0008] Preferably, scraping blocks are symmetrically installed on the outer side of the drill bit.

[0009] Preferably, the top of the grouting anchor is provided with a grouting port, and the outer side of the grouting anchor is provided with a first grout outlet and a second grout outlet, with the second grout outlet located below the first grout outlet.

[0010] Preferably, a baffle is installed on the outer side of the grouting anchor rod, and a limit nut is threaded on the outer side of the grouting anchor rod, with the limit nut located above the baffle.

[0011] Preferably, a bushing body is installed on the outer side of the grouting anchor rod, and the bushing body is located below the baffle plate. Several through holes are opened on the outer side of the bushing body.

[0012] Preferably, an installation sleeve is installed on the outer side of the bottom end of the grouting anchor, and a spiral blade is installed on the outer side of the installation sleeve.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] 1. The docking installation component of this utility model is used to fix the drill bit at the bottom end of the grouting anchor rod for use, and it is also easy to disassemble and assemble. When installing the drill bit, since the top of the drill bit is a hollow structure, it can be directly inserted into the outside of the connector. Then, the fixing bolt is rotated through the drill bit and enters the fixing hole, thereby fixing the drill bit and enabling the drill bit to be used stably in the grouting anchor rod. When disassembly is required, simply rotate the fixing bolt to remove the drill bit for replacement, making drill bit replacement more convenient and facilitating the replacement of the drill bit according to the environment of the grouting anchor rod.

[0015] 2. In this utility model, the mounting sleeve provides a position for the installation of the spiral blade. The spiral blade is fixed to the outer side of the bottom end of the anchor rod by the mounting sleeve. When the anchor rod is inserted into the wall, the spiral blade performs spiral cutting on the inner side of the wall under the rotation of the anchor rod, so that spiral marks appear on the inner side of the wall, thereby further increasing the tightness and firmness between the anchor rod and the wall and improving the fixing ability of the anchor rod.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the grouting anchor structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the spiral blade structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the drill bit structure of this utility model.

[0022] Reference numerals in the attached drawings: 1. Grouting anchor; 2. Grouting port; 3. Baffle; 4. Limit nut; 5. First grout outlet; 6. Second grout outlet; 7. Connector; 8. Fixing hole; 9. Bushing body; 10. Through hole; 11. Mounting sleeve; 12. Spiral blade; 13. Drill bit; 14. Scraper block; 15. Fixing bolt. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1-4 As shown, this embodiment of the utility model provides an anchor bolt with a bushing;

[0026] The assembly includes a grouting anchor rod 1 and a docking installation component. The bottom end of the grouting anchor rod 1 is equipped with the docking installation component, which includes a connector 7, a fixing hole 8, a drill bit 13, and a fixing bolt 15. The connector 7 is installed at the bottom end of the grouting anchor rod 1. The fixing hole 8 is opened on the front of the connector 7. The drill bit 13 is fitted on the outside of the connector 7. The fixing bolt 15 is installed through the front of the drill bit 13 and is threadedly connected to the fixing hole 8. Scraper blocks 14 are symmetrically installed on the outside of the drill bit 13.

[0027] The grouting anchor 1 is inserted into the wall for reinforcement. The interior of the grouting anchor 1 is hollow, providing a channel for concrete grout, allowing concrete to be injected into the wall through the anchor 1. The docking installation assembly is used to fix the drill bit 13 to the bottom of the grouting anchor 1 for use, and also facilitates disassembly and assembly. During installation, because the top of the drill bit 13 is hollow, it can be directly inserted into the outside of the connector 7. Then, the fixing bolt 15 is rotated through the drill bit 13 and into the fixing hole 8, thus fixing the drill bit 13 and ensuring its stable use within the grouting anchor 1. When disassembly is required, simply rotate the fixing bolt 15 to remove the drill bit 13 for replacement, making drill bit replacement more convenient and allowing the grouting anchor 1 to be used in various environments. The scraper block 14 is used to improve the drilling capability of the drill bit 13.

[0028] like Figures 1-3 As shown, this embodiment of the utility model provides an anchor bolt with a bushing;

[0029] The grouting anchor rod 1 includes a bushing body 9 and a spiral blade 12. The top of the grouting anchor rod 1 is provided with a grouting port 2. The outer side of the grouting anchor rod 1 is provided with a first grout outlet 5 and a second grout outlet 6, with the second grout outlet 6 located below the first grout outlet 5. A baffle 3 is installed on the outer side of the grouting anchor rod 1. A limit nut 4 is threaded on the outer side of the grouting anchor rod 1, with the limit nut 4 located above the baffle 3. The bushing body 9 is installed on the outer side of the grouting anchor rod 1, with the bushing body 9 located below the baffle 3. Several through holes 10 are provided on the outer side of the bushing body 9. An installation sleeve 11 is installed on the outer side of the bottom end of the grouting anchor rod 1. A spiral blade 12 is installed on the outer side of the installation sleeve 11.

[0030] Grouting port 2 provides space for adding concrete grout into the grouting anchor rod 1. After the grout is added, it will be discharged through the first grout outlet 5 and the second grout outlet 6. The two grout outlets are provided to prevent one of the outlets from becoming blocked and affecting the use of the anchor rod. The baffle 3 is fixed at the insertion port by the limiting nut 4 to prevent the grout from overflowing to the outside. The grout discharged from the first grout outlet 5 and the second grout outlet 6 is discharged through the through hole 10 on the outside of the bushing body 9 to the space between the anchor rod and the wall. After the grout solidifies, it makes the connection between the anchor rod and the wall tighter and improves the anchoring force of the anchor rod. The mounting sleeve 11 provides a position for the installation of the spiral blade 12. The spiral blade 12 is fixed to the outside of the bottom end of the anchor rod by the mounting sleeve 11. When the anchor rod is inserted into the wall, the spiral blade 12 performs spiral cutting on the inside of the wall under the rotation of the anchor rod, so that spiral marks appear on the inside of the wall, thereby further increasing the tightness and firmness between the anchor rod and the wall and improving the fixing ability of the anchor rod.

[0031] In operation, this utility model is used by rotating and drilling into the wall. Because the anchor rod has a hollow internal structure, it also functions as an injection grout. After the grouting anchor rod 1 is inserted into the wall, concrete grout is injected into the anchor rod 1 through the grouting port 2. The grout is discharged into the bushing body 9 through the first outlet 5 and the second outlet 6. Then, the concrete grout is discharged through the through hole 10 on the outside of the bushing body 9, filling the gap between the anchor rod and the wall. After the concrete grout solidifies, the wall's stability is increased.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An anchor bolt with a bushing, characterized in that: The grouting anchor rod (1) is equipped with a docking assembly at its bottom end. The docking assembly includes a connector (7), a fixing hole (8), a drill bit (13), and a fixing bolt (15). The connector (7) is installed at the bottom end of the grouting anchor rod (1). The fixing hole (8) is opened on the front of the connector (7). The drill bit (13) is fitted on the outside of the connector (7). The fixing bolt (15) is installed through the front of the drill bit (13) and is threadedly connected to the fixing hole (8).

2. The anchor bolt with bushing according to claim 1, characterized in that: The drill bit (13) is symmetrically equipped with scraper blocks (14) on its outer side.

3. The anchor bolt with bushing according to claim 1, characterized in that: The top of the grouting anchor (1) is provided with a grouting port (2), and the outer side of the grouting anchor (1) is provided with a first grout outlet (5) and a second grout outlet (6), and the second grout outlet (6) is located below the first grout outlet (5).

4. The anchor bolt with bushing according to claim 1, characterized in that: A baffle (3) is installed on the outside of the grouting anchor (1), and a limit nut (4) is threaded on the outside of the grouting anchor (1), with the limit nut (4) located above the baffle (3).

5. An anchor bolt with bushing according to claim 4, characterized in that: The grouting anchor (1) is fitted with a bushing body (9) on its outer side, and the bushing body (9) is located below the baffle (3). Several through holes (10) are opened on the outer side of the bushing body (9).

6. An anchor bolt with bushing according to claim 5, characterized in that: An installation sleeve (11) is installed on the outer side of the bottom end of the grouting anchor (1), and a spiral blade (12) is installed on the outer side of the installation sleeve (11).

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