Anchor rod construction device

Abstract

The utility model provides an anchor rod construction device which comprises a connecting base, a round opening is formed in the middle of one face of the connecting base, two connecting sleeves are symmetrically installed on one face of the connecting base, guide rods are inserted into the connecting sleeves, and a guide piece used for limiting the moving track of a drill rod is installed between the two guide rods in a sliding mode. A protruding block is fixedly connected to the outer surface of the connecting sleeve and fixedly connected with the connecting base, a threaded hole is formed in the face, away from the connecting sleeve, of the protruding block, and a half-tooth screw used for limiting the relative position of the connecting sleeve and the guide rod is connected into the threaded hole in a threaded mode. The area, covered by the protruding block, of the connecting sleeve is provided with a round hole aligned with the threaded hole, the half-tooth screw is sleeved with an outer sleeve fixedly connected with the half-tooth screw, an inner cylinder concentric with the threaded hole is inserted into the outer sleeve, and the end, located on the outer side of the outer sleeve, of the inner cylinder is fixedly connected with the protruding block. The drill bit has the beneficial effect that the drill hole disintegrating slag is prevented from entering the thread part.

Description

Technical Field

[0001] This utility model is an anchor bolt construction device, belonging to the field of anchor bolt construction. Background Technology

[0002] In anchor bolt construction, drill bit guidance is crucial, directly affecting drilling accuracy and anchor bolt installation quality, thus impacting the stability of the entire project. Drill bit guidance ensures that drilling proceeds according to the designed position, angle, and depth. For example, in slope protection engineering, if the drilling position and angle deviate too much, the anchor bolt cannot accurately embed into the predetermined stable rock mass area, significantly weakening the anchoring effect and potentially even leading to slope instability. In the design of key components of anchor bolt construction equipment, the structure of the connecting seat plays a vital role in drilling accuracy. Two guide rods are symmetrically installed on the connecting seat, each fitted with a guide sleeve. Between the two guide sleeves is a column rod for connecting the drill rod. This design ensures a tight fit between the guide rods and guide sleeves, providing precise guidance and limiting for the drill rod during drilling operations, effectively ensuring that the drilling follows the predetermined trajectory and thus improving drilling accuracy.

[0003] To facilitate the installation and removal of the guide rod during construction, it is connected to the connector with screws, a common and convenient connection method. However, in actual drilling operations, a large amount of debris is inevitably generated. When the screws need to be loosened to remove the guide rod, this debris easily adheres to the threads on the screw surface. As the debris accumulates, the effective engagement of the screw threads is affected, making it difficult to achieve the required tightness when the screws are tightened later. This may affect the stability of the guide rod and ultimately have an adverse impact on the guiding effect of the drilling. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anchor bolt construction device to solve the problems mentioned in the background technology. This utility model prevents drill debris from entering the threaded part.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anchor bolt construction device includes a connecting seat with a circular opening at the center of one side. Two connecting sleeves are symmetrically installed on one side of the connecting seat. A guide rod is inserted inside the connecting sleeve. A guide component for limiting the movement trajectory of the drill rod is slidably installed between the two guide rods. A protrusion is fixedly connected to the outer surface of the connecting sleeve. The protrusion is fixedly connected to the connecting seat. A threaded hole is opened on the side of the protrusion facing away from the connecting sleeve. A semi-threaded screw rod for limiting the relative position between the connecting sleeve and the guide rod is threaded into the threaded hole. A circular hole aligned with the threaded hole is opened in the area of ​​the connecting sleeve covered by the protrusion. An outer sleeve is fitted onto the semi-threaded screw rod and fixedly connected to it. An inner cylinder arranged concentrically with the threaded hole is inserted inside the outer sleeve. The end of the inner cylinder located outside the outer sleeve is fixedly connected to the protrusion.

[0006] Furthermore, a conical cover is provided on the side of the connecting sleeve away from the connecting seat. The conical cover is sleeved on the guide rod. A first connecting ring is fixedly connected to the large end of the conical cover. A second connecting ring is connected to the first connecting ring by fasteners formed by multiple screws and nuts. The second connecting ring is sleeved on the connecting sleeve and fixedly connected to the connecting sleeve. The inner diameter of the conical sleeve is the same as the outer diameter of the guide rod.

[0007] Furthermore, a flat head is fixed to the end of the semi-threaded screw away from the threaded hole, and the flat head and the semi-threaded screw are integrally formed.

[0008] Furthermore, the connecting seat has a circular structure, and one side of the connecting seat has multiple fixing holes.

[0009] Furthermore, the guide component includes guide sleeves, and guide sleeves that slide in contact with the guide rods are fitted on both guide rods. An intermediate sleeve is provided between the two guide sleeves. The intermediate sleeve is connected and fixed to the two guide sleeves by a bracket. A column for connecting the drill rod is inserted into the intermediate sleeve and is rotatably connected to the intermediate sleeve. The middle part of the side of the column near the connecting seat is recessed to form an internal hexagonal groove that matches the cross-sectional shape of the drill rod. A threaded head for connecting a threaded sleeve installed on the output end of the motor is installed at the end of the column away from the internal hexagonal groove.

[0010] Furthermore, two protective sleeves are inserted inside the intermediate sleeve, and the protective sleeves are fitted onto the column. Each of the two protective sleeves has an end ring fixedly connected to one end opposite to the other. The end ring is in contact with the end of the intermediate sleeve. Both ends of the column are provided with annular grooves, and a retaining spring is inserted in the annular groove and is in contact with the side of the end ring opposite to the intermediate sleeve.

[0011] Furthermore, the threaded head and the column are integrally formed, and the cross-section of the bracket is cross-shaped.

[0012] The beneficial effects of this utility model are:

[0013] 1. A combination structure of a semi-threaded screw, outer sleeve, and inner cylinder replaces the ordinary screw connection between the guide rod and the connecting sleeve. This design allows the outer sleeve and inner cylinder to prevent drilling debris from entering the threaded part when the semi-threaded screw is tightened, ensuring the cleanliness of the semi-threaded screw thread and achieving a good tightening effect when tightened, stabilizing the guide rod and ensuring the stability of the drilling guidance.

[0014] 2. A conical cover is installed on the side of the connecting sleeve away from the connecting seat. Its inner diameter is the same as the outer diameter of the guide rod and fits tightly. It can prevent debris from splashing into the connection between the guide rod and the connecting sleeve during drilling, reduce debris accumulation, avoid loosening of the guide rod due to debris, enhance the protection of the connection part, and improve the reliability of the entire construction device.

[0015] 3. The threaded hole is machined on the protrusion that is fixed to the connecting sleeve, thereby increasing the thickness of the threaded hole part of the connecting sleeve locally without increasing the overall thickness of the connecting sleeve. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a structural schematic diagram of an anchor bolt construction device according to the present invention;

[0018] Figure 2 This is an assembly diagram of the protrusion, connecting sleeve, and connecting seat in an anchor bolt construction device according to the present invention.

[0019] Figure 3 This is a cross-sectional assembly diagram of the guide rod, connecting sleeve, and connecting seat in an anchor bolt construction device according to this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly of the outer sleeve and the semi-threaded screw in an anchor bolt construction device according to the present invention;

[0021] Figure 5 This is an exploded structural diagram of the column, sheath, intermediate sleeve and guide sleeve in an anchor bolt construction device of this utility model;

[0022] In the diagram: 1-Connecting seat, 2-Round opening, 3-Protrusion, 4-Flat head, 5-Half threaded screw, 6-Outer sleeve, 7-Inner cylinder, 8-Guide rod, 9-Bracket, 10-Guide sleeve, 11-Threaded head, 12-Intermediate sleeve, 13-Conical sleeve, 14-First connecting ring, 15-Second connecting ring, 16-Connecting sleeve, 17-Threaded hole, 18-Sheath, 19-End ring, 20-Cylinder, 21-Snap ring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: an anchor bolt construction device, including a connecting seat 1, which is a circular structure. One side of the connecting seat 1 has multiple fixing holes, which facilitate the installation of the connecting seat 1 at the required position using bolts. A circular opening 2 is provided in the middle of one side of the connecting seat 1, which is designed to facilitate the passage of the drill rod through the connecting seat 1.

[0025] See Figure 1 and Figure 5 Two connecting sleeves 16 are symmetrically installed on one side of the connecting seat 1. A guide rod 8 is inserted inside the connecting sleeve 16. A guide sleeve 10 is fitted on each of the two guide rods 8 and slides in contact with the guide rod 8. An intermediate sleeve 12 is provided between the two guide sleeves 10. The intermediate sleeve 12 is connected and fixed to the two guide sleeves 10 through a bracket 9. The bracket 9 has a cross-section of "+". A column 20 for connecting the drill rod is inserted inside the intermediate sleeve 12 and is rotatably connected to the intermediate sleeve 12. The middle part of the side of the column 20 near the connecting seat 1 is recessed to form an internal hexagonal groove that matches the cross-sectional shape of the drill rod. A threaded head 11 for connecting the threaded sleeve installed on the output end of the motor is installed at the end of the column 20 away from the internal hexagonal groove. The threaded head 11 and the column 20 are integrally formed. The two guide sleeves 10 slide on the guide rods 8 and, together with the intermediate sleeve 12 and the "+" shaped bracket 9, provide stable support for the column 20 for connecting the drill rod. The internal hexagonal groove at one end of the column 20 matches the drill rod, and the threaded head 11 at the other end connects to the motor output end, ensuring that the drill rod remains stable during rotation and propulsion, effectively limiting its movement trajectory and improving drilling accuracy.

[0026] See Figure 1 and Figure 5 Two sheaths 18 are inserted inside the intermediate sleeve 12. The sheaths 18 are fitted onto the column 20. Each of the two sheaths 18 has an end ring 19 fixed to its opposite end. The end ring 19 contacts the end of the intermediate sleeve 12. Both ends of the column 20 have annular grooves. A retaining spring 21 is inserted into the annular groove and contacts the side of the end ring 19 opposite to the intermediate sleeve 12. The two sheaths 18 inside the intermediate sleeve 12 fit onto the column 20. The end rings 19 at both ends and the retaining spring 21 on the column 20 cooperate to prevent the column 20 from directly rubbing against the intermediate sleeve 12 when rotating, thereby reducing wear and extending the service life of the intermediate sleeve 12.

[0027] See Figures 1-3A protrusion 3 is fixedly connected to the outer surface of the connecting sleeve 16. The protrusion 3 is fixedly connected to the connecting seat 1. A threaded hole 17 is opened on the side of the protrusion 3 facing away from the connecting sleeve 16. In order to optimize the connection structure between the connecting sleeve 16 and the guide rod 8, the threaded hole 17 is specially set on the protrusion 3 that is firmly connected to the connecting sleeve 16. This design cleverly achieves local thickening of the area where the threaded hole is opened in the connecting sleeve 16. Compared with increasing the thickness of the connecting sleeve 16 as a whole, this method is more targeted. By locally thickening, not only are the strength requirements of the threaded connection met, ensuring the stability of the connection between the semi-threaded screw 5 and the threaded hole 17, and effectively limiting the relative position of the connecting sleeve 16 and the guide rod 8, but also the material waste and cost increase caused by thickening the connecting sleeve 16 as a whole are avoided. While ensuring the performance of the construction device, the economy and practicality are improved.

[0028] See Figures 1-4 A semi-threaded screw 5, used to limit the relative position of the connecting sleeve 16 and the guide rod 8, is internally threaded into the threaded hole 17. A flat head 4 is fixedly connected to the end of the semi-threaded screw 5 away from the threaded hole 17. The flat head 4 and the semi-threaded screw 5 are integrally formed. A circular hole aligned with the threaded hole 17 is opened in the area of ​​the connecting sleeve 16 covered by the protrusion 3. An outer sleeve 6 is fitted onto the semi-threaded screw 5 and fixedly connected to it. An inner cylinder 7, concentrically arranged with the threaded hole 17, is inserted inside the outer sleeve 6. The end of the inner cylinder 7 located outside the outer sleeve 6 is fixedly connected to the protrusion 3. When the semi-threaded screw 5 is tightened, the outer sleeve 6 and the inner cylinder 7 play a crucial protective role. During drilling operations, a large amount of debris is inevitably generated. The outer sleeve 6 and the inner cylinder 7, like a carefully crafted "protective barrier," work closely together to effectively prevent debris from entering the threaded portion of the semi-threaded screw 5. In this way, the threads of the semi-threaded screw 5 remain clean, avoiding poor thread engagement caused by debris adhesion.

[0029] See 1 and Figure 2 A conical cover 13 is provided on the side of the connecting sleeve 16 opposite to the connecting seat 1. The conical cover 13 is fitted onto the guide rod 8. A first connecting ring 14 is fixedly connected to the larger end of the conical cover 13. The first connecting ring 14 is connected to a second connecting ring 15 by fasteners formed by multiple screws and nuts. The second connecting ring 15 is fitted onto the connecting sleeve 16 and fixedly connected to it. The inner diameter of the conical cover 13 is the same as the outer diameter of the guide rod 8. In the actual anchor drilling process, the drilling operation will generate a large amount of debris, which will fly everywhere and easily enter the connection between the guide rod 8 and the connecting sleeve 16. This conical cover 13 acts like a sturdy protective shield, playing a crucial role in blocking the debris. It can effectively intercept the flying debris and greatly reduce the accumulation of debris at the connection between the guide rod 8 and the connecting sleeve 16.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anchor bolt construction device, comprising a connecting seat (1), characterized in that: The connecting seat (1) has a round opening (2) at the center of one side. Two connecting sleeves (16) are symmetrically installed on one side of the connecting seat (1). A guide rod (8) is inserted inside the connecting sleeve (16). A guide component for limiting the movement trajectory of the drill rod is slidably installed between the two guide rods (8). A protrusion (3) is fixedly connected to the outer surface of the connecting sleeve (16). The protrusion (3) is fixedly connected to the connecting seat (1). A threaded hole (17) is opened on the side of the protrusion (3) facing away from the connecting sleeve (16). The threaded hole (17) is internally threaded with a semi-threaded screw (5) for limiting the relative position of the connecting sleeve (16) and the guide rod (8). The area of ​​the connecting sleeve (16) covered by the protrusion (3) has a round hole aligned with the threaded hole (17). The semi-threaded screw (5) is fitted with an outer sleeve (6) that is connected and fixed to the semi-threaded screw (5). An inner cylinder (7) arranged concentrically with the threaded hole (17) is inserted inside the outer sleeve (6). The end of the inner cylinder (7) located outside the outer sleeve (6) is connected and fixed to the protrusion (3).

2. The anchor bolt construction device according to claim 1, characterized in that: The connecting sleeve (16) has a conical cover (13) on the side opposite to the connecting seat (1). The conical cover (13) is fitted on the guide rod (8). The large end of the conical cover (13) is connected and fixed with a first connecting ring (14). The first connecting ring (14) is connected to a second connecting ring (15) by fasteners formed by multiple screws and nuts. The second connecting ring (15) is fitted on the connecting sleeve (16) and connected and fixed to the connecting sleeve (16). The inner diameter of the conical cover (13) is the same as the outer diameter of the guide rod (8).

3. The anchor bolt construction device according to claim 1, characterized in that: The end of the semi-threaded screw (5) away from the threaded hole (17) is connected and fixed with a flat head (4), and the flat head (4) and the semi-threaded screw (5) are integrally formed.

4. The anchor bolt construction device according to claim 1, characterized in that: The connecting seat (1) has a circular structure, and multiple fixing holes are provided on one side of the connecting seat (1).

5. The anchor bolt construction device according to claim 1, characterized in that: The guide component includes a guide sleeve (10). Each of the two guide rods (8) is fitted with a guide sleeve (10) that slides in contact with the guide rod (8). An intermediate sleeve (12) is provided between the two guide sleeves (10). The intermediate sleeve (12) is connected and fixed to the two guide sleeves (10) by a bracket (9). A column (20) for connecting the drill rod is inserted in the intermediate sleeve (12) and is rotatably connected to the intermediate sleeve (12). The middle part of the side of the column (20) near the connecting seat (1) is recessed to form an internal hexagonal groove that matches the cross-sectional shape of the drill rod. A threaded head (11) for connecting the threaded sleeve installed on the output end of the motor is installed at the end of the column (20) away from the internal hexagonal groove.

6. The anchor bolt construction device according to claim 5, characterized in that: Two sheaths (18) are inserted inside the intermediate sleeve (12). The sheaths (18) are fitted onto the column (20). Each of the two sheaths (18) has an end ring (19) fixed to its opposite end. The end ring (19) is in contact with the end of the intermediate sleeve (12). Both ends of the column (20) have annular grooves. A retaining ring (21) is inserted in the annular groove and is in contact with the side of the end ring (19) opposite to the intermediate sleeve (12).

7. The anchor bolt construction device according to claim 5, characterized in that: The threaded head (11) and the column (20) are integrally formed, and the cross-section of the bracket (9) is "+" shaped.

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