Anchor rod fixing device for municipal construction

Abstract

The utility model discloses an anchor rod fixing device for municipal construction, which belongs to the technical field of municipal engineering construction accessory devices and comprises a drill rod and an anchoring rod, the bottom of the drill rod is of a conical structure with a downward tip, and anchoring threads are arranged on the circumferential outer wall of the drill rod; the middle upper portion of the drill rod is of a hollow structure, a plurality of through holes are formed in the pipe wall of the hollow portion of the drill rod, a fixing rod is arranged in each through hole in a sliding mode, the multiple fixing rods are arranged in the drill rod, the anchoring rods are inserted into the drill rod, and the fixing rods are pushed to move in the axis direction of the through holes so that the fixing rods can be inserted into the stratum. According to the communication rod, the contact area of the drill rod and the stratum is increased, the anchoring rod is connected with the drill rod, the connection firmness between the anchoring rod and the stratum is improved, the road holding force and the pulling resistance of the anchoring rod are remarkably improved finally, and the stability of the communication rod in various environments is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary devices for municipal engineering construction, and in particular relates to an anchor bolt fixing device used in building and municipal construction. Background Technology

[0002] In municipal engineering, ground anchors are widely used in power line erection as important auxiliary devices for stabilizing facilities such as communication poles. Traditional ground anchors for municipal engineering mainly consist of an anchor rod and a helical blade. The anchor rod has a connecting ring at the top and an anchor tip at the bottom, while the helical blade is fixedly installed at the lower part of the anchor rod. In use, the anchor rod is helically inserted into the ground through the anchor tip and the helical blade to achieve fixation. Then, the guy wire is connected to the connecting ring to complete the stable support of the communication pole. However, existing ground anchors for municipal engineering have poor stabilization effects: the contact area between the helical blade and the part of the anchor rod underground and the ground is relatively small, resulting in insufficient friction and poor stabilization of the communication pole, especially in soft soil or under external forces, where loosening is likely to occur. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, the present invention aims to provide an anchor fixing device for building and municipal construction, which solves the problem that the existing ground anchors used in municipal engineering have poor stabilizing effect on communication poles.

[0004] To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: An anchor rod fixing device for building and municipal construction is provided, comprising a drill rod and an anchor rod. The bottom of the drill rod has a conical structure with the tip pointing downwards, and an anchor thread is provided on the outer circumference of the drill rod. The upper middle part of the drill rod has a hollow structure, and multiple through holes are provided on the tube wall of the hollow part of the drill rod. The axial direction of each through hole is perpendicular to the axial direction of the drill rod. A fixing rod is slidably disposed in each through hole, and each fixing rod is connected to the through hole through a cylindrical spring. One end of each fixing rod is located near the axis of the drill rod, and the other end is located at the outer port of the through hole.

[0005] The anchor rod has a round rod structure, and the bottom of the anchor rod has a wedge-shaped structure with the tip pointing downwards. The diameter of the anchor rod matches the inner diameter of the drill rod. The outer circumference of the top section of the anchor rod is provided with external threads, and the remaining sections are smooth rod structures. The inner wall of the top of the drill rod is provided with internal threads. The anchor rod is set inside the drill rod, and the external threads mate with the internal threads. The top end face of the anchor rod is located on the outer wall of the top of the drill rod and is provided with a connecting ring thereon.

[0006] During the process of inserting the anchor rod into the drill rod, the outer circumference of the anchor rod contacts one end of the fixing rod. As the anchor rod gradually moves downward, it pushes the fixing rod to move towards the axis of the through hole, so that the other end of the fixing rod is located outside the through hole.

[0007] The basic principle of this utility model is as follows: In use, firstly, the drill rod is drilled into the formation using a power tool to complete the installation of the drill rod. Then, the anchor rod is inserted into the drill rod. During the insertion of the anchor rod into the drill rod, the outer circumference of the anchor rod contacts one end of the fixing rod. As the anchor rod gradually moves downward, it pushes the fixing rod to move towards the axis of the through hole, so that the other end of the fixing rod passes through the through hole and is inserted into the formation for anchoring, thus completing the anchoring of the fixing rod. Finally, the external thread on the anchor rod is threaded into the internal thread on the inner wall of the top of the drill rod to achieve a fixed connection between the anchor rod and the drill rod. The pull wire is then firmly connected to the connecting ring on the anchor rod to complete the fixing of the communication rod.

[0008] Furthermore, as a specific arrangement of the fixing rods in the through holes, a first annular mounting step is provided on the middle section of each fixing rod; a second annular mounting step is provided inside each through hole; and a cylindrical spring is fitted on the outer circumference of each fixing rod, with both ends of the cylindrical spring fixedly connected to the first and second annular mounting steps respectively. When no external force is applied, the other end of the fixing rod is located at the outer port of the through hole. The cylindrical spring arrangement ensures that the other end of the fixing rod remains inside the through hole during the insertion of the drill rod into the formation, thus ensuring smooth drill rod insertion.

[0009] Furthermore, a connecting plate is provided at the top of the drill rod. The connecting plate has a threaded hole in its center that connects to the outer circumference of the drill rod. Multiple connecting holes are provided on both sides of the threaded hole, each containing a bolt. After the drill rod is inserted into the formation, its top is on the ground. The connecting plate is then connected to the outer circumference of the drill rod top through the threaded hole, with its lower end face in contact with the ground. Finally, the connecting plate is fixed to the ground using bolts. The ultimate function of the connecting plate is to increase the force connection between the drill rod and the ground, further improving the stability of the drill rod.

[0010] Furthermore, a drill interface is provided on the top end face of the drill rod. The drill interface has a cylindrical structure and an internal hexagonal notch for the anchor rod to pass through. The drill interface facilitates the connection of power tools for rapid, mechanized installation, improving installation efficiency and convenience.

[0011] Furthermore, a locking nut, threadedly connected to the external thread, is provided on the outer circumferential wall of the top section of the anchor rod. The lower end face of the locking nut is used to abut against the upper end face of the drill interface. After the external thread on the anchor rod is engaged with the internal thread on the inner wall of the top of the drill rod, the locking nut is tightened, so that the lower end face of the locking nut abuts against the upper end face of the drill interface. This locks the anchor rod and prevents it from rotating relative to the drill rod.

[0012] Furthermore, the multiple through holes are evenly spaced along the axial and radial directions of the drill rod. This arrangement allows multiple fixing rods to anchor to formations at different depths and in different directions, further improving the stability of the drill rod.

[0013] Furthermore, the end face of each fixing rod located near the axis of the drill rod is an arc surface, which is used to contact the outer circumferential wall of the anchor rod. This design ensures smooth insertion of the anchor rod.

[0014] Compared with existing ground anchors used in municipal engineering, the beneficial effects of this utility model are as follows:

[0015] This utility model discloses an anchor fixing device for building and municipal construction. By setting multiple fixing rods in the drill rod and inserting the anchor rod into the drill rod, the fixing rod is pushed to move towards the axis of the through hole and insert it into the stratum, which increases the contact area between the drill rod and the stratum. Since the anchor rod is connected to the drill rod, the connection between the anchor rod and the stratum is strengthened, which significantly improves the anchor rod's grip and pull-out resistance, ensuring the stability of the communication rod in various environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of an anchor bolt fixing device used in building and municipal construction.

[0017] Figure 2 This is a schematic diagram of the drill pipe structure.

[0018] Figure 3 This is a schematic diagram of the anchor rod structure.

[0019] Figure 4 An enlarged schematic diagram of the structure in which the fixing rod is installed in the through hole.

[0020] Figure 5 This is a top view of the fixed rod structure.

[0021] Figure 6 This is a top view of the drill interface.

[0022] Among them, 1. Drill rod; 2. Anchor rod; 3. Anchor thread; 4. Through hole; 5. Fixing rod; 6. Cylindrical spring; 7. External thread; 8. Internal thread; 9. Connecting ring; 10. First annular mounting step; 11. Second annular mounting step; 12. Connecting plate; 13. Bolt fastener; 14. Electric drill interface; 15. Hex socket; 16. Locking nut; 17. Arc surface. Detailed Implementation

[0023] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All inventions utilizing the concept of this utility model are protected.

[0024] like Figures 1-4 As shown, this utility model provides an anchor fixing device for building and municipal construction, which includes a drill rod 1 and an anchor rod 2. The bottom of the drill rod 1 is a cone structure with the tip pointing downwards, and the outer circumference of the drill rod 1 is provided with anchor threads 3. The upper middle part of the drill rod 1 is hollow, and multiple through holes 4 are provided on the tube wall of the hollow part of the drill rod 1. The axial direction of each through hole 4 is perpendicular to the axial direction of the drill rod 1. A fixing rod 5 is slidably installed in each through hole 4, and each fixing rod 5 is connected to the through hole 4 by a cylindrical spring 6. One end of each fixing rod 5 is located near the axis of the drill rod 1, and the other end is located at the outer port of the through hole 4.

[0025] Specifically, as one arrangement of the fixing rods 5 in the through holes 4, each fixing rod 5 has a first annular mounting step 10 on its middle section; each through hole 4 has a second annular mounting step 11; and each fixing rod 5 has a cylindrical spring 6 fitted on its outer circumference. The two ends of the cylindrical spring 6 are fixedly connected to the first annular mounting step 10 and the second annular mounting step 11, respectively. When no external force is applied, the other end of the fixing rod 5 is located at the outer end of the through hole 4. The cylindrical spring 6 ensures that the other end of the fixing rod 5 remains within the through hole 4 during the insertion of the drill rod 1 into the formation, allowing for smooth insertion of the drill rod 1.

[0026] Preferably, such as Figure 5 As shown, the end face of each fixing rod 5 located near the axis of the drill rod 1 has an arc surface 17, which is used to contact the outer circumferential wall of the anchor rod 2. The purpose of this arrangement is to ensure that the anchor rod 2 is inserted smoothly.

[0027] The anchor rod 2 has a round rod structure, and the bottom of the anchor rod 2 has a wedge-shaped structure with the tip pointing downwards. The diameter of the anchor rod 2 matches the inner diameter of the drill rod 1. The outer circumference of the top section of the anchor rod 2 is provided with an external thread 7, and the remaining sections are smooth rod structures. The inner wall of the top of the drill rod 1 is provided with an internal thread 8. The anchor rod 2 is located inside the drill rod 1, and the external thread 7 and the internal thread 8 are engaged. The top end face of the anchor rod 2 is located on the top outer wall of the drill rod 1 and a connecting ring 9 is provided thereon.

[0028] During the insertion of the anchor rod 2 into the drill rod 1, the outer circumferential wall of the anchor rod 2 contacts one end of the fixing rod 5. As the anchor rod 2 gradually moves downward, it pushes the fixing rod 5 towards the axial direction of the through hole 4, so that the other end of the fixing rod 5 is located outside the through hole 4. Specifically, the multiple through holes 4 are evenly spaced along the axial and radial directions of the drill rod 1. The purpose of this arrangement is to allow multiple fixing rods 5 to anchor strata at different depths and in different directions, further improving the stability of the drill rod 1.

[0029] The method of using the anchor bolt fixing device of this utility model is as follows: First, drill rod 1 is drilled into the formation using power tools to complete the installation of drill rod 1. Specifically, as follows: Figure 1 and Figure 6 As shown, a drill interface 14 is provided on the top end face of the drill rod 1. The drill interface 14 has a cylindrical structure and an internal hexagonal notch 15 for the anchor rod 2 to pass through. The drill interface 14 facilitates the connection of power tools for mechanized and rapid installation, improving installation efficiency and convenience. Next, the anchor rod 2 is inserted into the drill rod 1. During the insertion of the anchor rod 2 into the drill rod 1, the outer circumference of the anchor rod 2 contacts one end of the fixing rod 5. As the anchor rod 2 gradually moves downward, it pushes the fixing rod 5 towards the axis of the through hole 4, allowing the other end of the fixing rod 5 to pass through the through hole 4 and be inserted into the stratum for anchoring, thus completing the anchoring of the fixing rod 5. Finally, the external thread 7 on the anchor rod 2 is threaded into the internal thread 8 on the inner wall of the top of the drill rod 1, achieving a fixed connection between the anchor rod 2 and the drill rod 1. The pull wire is then firmly connected to the connecting ring 9 on the anchor rod 2, completing the fixing of the communication rod.

[0030] Preferred, but not limited to, such as Figure 1As shown, a connecting plate 12 is provided at the top of the drill rod 1. A threaded hole, threaded to the outer circumference of the drill rod 1, is located in the center of the connecting plate 12. Multiple connecting holes are provided on both sides of the threaded hole, and each connecting hole contains a bolt fastener 13. After the drill rod 1 is inserted into the formation, its top is on the ground. The connecting plate 12 is then connected to the outer circumference of the top of the drill rod 1 through the threaded hole, with its lower end face in contact with the ground. Finally, the connecting plate 12 is fixed to the ground using the bolt fasteners 13. The ultimate function of the connecting plate 12 is to increase the force connection between the drill rod 1 and the ground, further improving the stability of the drill rod 1. In practical implementation, the connecting plate 12 is generally used to connect to a hard surface, while the bolt fasteners 13 can be self-tapping screws or similar components.

[0031] Preferably, such as Figure 3 As shown, a locking nut 16, threadedly connected to the external thread 7, is provided on the outer circumferential wall of the top section of the anchor rod 2. The lower end face of the locking nut 16 is used to abut against the upper end face of the drill interface 14. After the external thread 7 on the anchor rod 2 is threadedly engaged with the internal thread 8 on the inner wall of the top of the drill rod 1, the locking nut 16 is tightened, so that the lower end face of the locking nut 16 abuts against the upper end face of the drill interface. This locks the anchor rod 2, preventing the anchor rod 2 from rotating relative to the drill rod 1.

[0032] In summary, the anchor fixing device for building and municipal construction of this utility model increases the contact area between the drill rod 1 and the ground by setting multiple fixing rods 5 in the drill rod 1 and inserting anchor rods 2 into the drill rod 1 and pushing the fixing rods 5 toward the axis of the through hole 4. Since the anchor rods 2 are connected to the drill rod 1, the connection between the anchor rods 2 and the ground is strengthened, and the gripping force and pull-out resistance of the anchor rods 2 are significantly improved, ensuring the stability of the communication pole in various environments.

Claims

1. An anchor rod fixing device for building municipal construction, characterized in that, The device includes a drill rod and an anchor rod. The bottom of the drill rod is a cone structure with the tip pointing downwards, and the outer circumference of the drill rod is provided with anchor threads. The upper middle part of the drill rod is hollow, and the tube wall of the hollow part of the drill rod is provided with multiple through holes. The axial direction of each through hole is perpendicular to the axial direction of the drill rod. A fixing rod is slidably installed in each through hole, and each fixing rod is connected to the through hole by a cylindrical spring. One end of each fixing rod is located near the axis of the drill rod, and the other end is located at the outer port of the through hole. The anchor rod has a round rod structure, and the bottom of the anchor rod has a wedge-shaped structure with the tip pointing downwards. The diameter of the anchor rod matches the inner diameter of the drill rod. The outer circumference of the top section of the anchor rod is provided with external threads, and the remaining sections are smooth rod structures. The inner wall of the top of the drill rod is provided with internal threads. The anchor rod is set inside the drill rod, and the external threads mate with the internal threads. The top end face of the anchor rod is located on the outer wall of the top of the drill rod and is provided with a connecting ring thereon. During the process of inserting the anchor rod into the drill rod, the outer circumference of the anchor rod contacts one end of the fixing rod. As the anchor rod gradually moves downward, it pushes the fixing rod to move towards the axis of the through hole, so that the other end of the fixing rod is located outside the through hole.

2. An anchor rod fixing device for building municipal construction according to claim 1, characterized in that, Each of the fixed rods has a first annular mounting step on its middle section; each of the through holes has a second annular mounting step; each of the fixed rods has a cylindrical spring fitted on its outer circumference, with both ends of the cylindrical spring fixedly connected to the first and second annular mounting steps respectively. When no external force is applied, the other end of the fixed rod is located at the outer port of the through hole.

3. The anchor rod fixing device for building municipal construction according to claim 1, characterized in that, A connecting plate is provided at the top of the drill rod. A threaded hole is provided in the middle of the connecting plate, which is threaded to the outer circumference of the drill rod. Multiple connecting holes are provided on both sides of the threaded hole, and a bolt fastener is provided in each connecting hole.

4. The anchor rod fixing device for building municipal construction according to claim 1, characterized in that, The drill rod has a drill interface on its top end face. The drill interface is cylindrical and has an internal hexagonal slot for the anchor rod to pass through.

5. Anchoring device for building civil works according to claim 4, characterized in that, A locking nut that is threadedly connected to the external thread is provided on the outer circumference of the top section of the anchor rod, and the lower end face of the locking nut is used to abut against the upper end face of the electric drill interface.

6. The anchor rod fixing device for building municipal construction according to claim 1, characterized in that, The plurality of through holes are evenly spaced along the axial and radial directions of the drill rod.

7. Anchoring device for building civil works according to claim 6, characterized in that, Each of the fixing rods has an arc-shaped end face near the drill rod axis, which is used to contact the outer circumferential wall of the anchor rod.

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