A fastening device for an anchor rod

Abstract

The utility model relates to the field of lattice anchor rod discloses a fastening type anchor rod device, including anchor rod main part, the outside fixed connection of anchor rod main part has the plug, the outside fixed connection of anchor rod main part has fastening mechanism, the fastening mechanism includes a plurality of barbs, a plurality of the inside fixed connection of barb is outside in anchor rod main part, the outside fixed connection of anchor rod main part has fixed assembly, the outside fixed connection of anchor rod main part has a plurality of trapezoidal blocks, the outside fixed connection of anchor rod main part has cylindrical shell, the inside sliding connection of cylindrical shell has conical thorn. In the utility model, the anchor rod main part can drive the barb to hook the object needing anchoring by pulling back, rotates anchor rod main part trapezoidal block and promotes conical thorn to slide out from cylindrical shell and carries out the penetration and reinforces, the object needing anchoring is hooked through the barb and conical thorn, and is more fastened in the inside needing anchoring.

Description

Technical Field

[0001] This utility model relates to the field of lattice anchor bolts, and in particular to a fastening anchor bolt device. Background Technology

[0002] Grid anchors are widely used in geotechnical engineering, especially in projects such as slope protection, foundation pit support, and deep foundation pit excavation. By inserting anchors into the soil layer and applying tension through fastening devices, they help enhance the stability of soil and rock, thereby preventing landslides and collapses. A fastening anchor bolt device includes a barb, a conical spike, etc. The working principle of the fastening anchor bolt device is mainly to achieve the anchoring effect by inserting the anchor bolt and applying tension, thereby enhancing the stability of the rock and soil. In existing technologies, some anchor bolt devices cannot be tightened multiple times during actual use. Due to factors such as changes in the natural environment, geological shifts, and aging of the support structure, the anchor bolts may loosen or fail after the initial tightening, thereby affecting the support effect and even causing structural safety hazards. Therefore, a fastening anchor bolt device is proposed to solve the above problems. Utility Model Content

[0003] The present invention proposes a fastening anchor bolt device, which aims to improve the problem that some existing devices do not have the function of fastening the anchor bolt multiple times during anchoring.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A fastening anchor bolt device includes an anchor bolt body, a grout stop plug fixedly connected to the outside of the anchor bolt body, a fastening mechanism fixedly connected to the outside of the anchor bolt body, the fastening mechanism including multiple barbs, the inner sides of the multiple barbs fixedly connected to the outer side of the anchor bolt body, a fixing assembly fixedly connected to the outside of the anchor bolt body, multiple trapezoidal blocks fixedly connected to the outside of the anchor bolt body, and a cylindrical shell fixedly connected to the outside of the anchor bolt body, with a conical spike slidably connected inside the cylindrical shell.

[0005] As a further description of the above technical solution: The fixing component includes a pad, the inner side of which is fixedly connected to the outer side of the anchor body, and a nut is fixedly connected to the rear side of the pad.

[0006] As a further description of the above technical solution: The anchor bolt body has an injection hole inside, a conical tube is slidably connected inside the anchor bolt body, and multiple sliding tubes are slidably connected inside the anchor bolt body.

[0007] As a further description of the above technical solution: The front sides of the multiple barbs are spike-shaped, and the tops of the multiple conical spikes are spike-shaped.

[0008] As a further description of the above technical solution: The outer side of the conical tube is slidably connected to the inside of the injection hole, and the outer side of the sliding tube is slidably connected to the inside of the injection hole.

[0009] As a further description of the above technical solution: The top of the trapezoidal block is rotatably connected to the bottom of the conical spike, and the outer side of the conical tube is slidably connected to the inner side of the plurality of sliding tubes.

[0010] As a further description of the above technical solution: The inner side of the nut is fixedly connected to the outer side of the anchor body, and the outer side of the trapezoidal block is rotatably connected to the inside of the cylindrical shell.

[0011] This utility model has the following beneficial effects: 1. In this utility model, pulling the anchor rod body backward can drive the barb to hook the object to be anchored, and rotating the trapezoidal block of the anchor rod body pushes the conical spike to slide out from the cylindrical shell for piercing and reinforcement. The barb and the conical spike hook the object to be anchored, and anchor it more firmly inside the object to be anchored.

[0012] 2. In this utility model, chemical agents are injected into the injection hole opened in the anchor rod body for anchoring. The agent pushes the conical tube to the front side of the injection hole and pushes the sliding tube out, allowing the chemical agent to flow out fully and penetrate into the soil and rock, which can more effectively improve the strength and stability of the soil and rock strata. Attached Figure Description

[0013] Figure 1 This is a perspective view of a fastening anchor bolt device proposed in this utility model; Figure 2 This is a schematic diagram of the barb structure of a fastening anchor bolt device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the cylindrical outer shell of a fastening anchor bolt device proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0014] Legend: 1. Anchor bolt body; 2. Grout stop plug; 3. Washer plate; 4. Nut; 5. Fastening mechanism; 6. Barb; 7. Trapezoidal block; 8. Cylindrical shell; 9. Conical spike; 10. Grouting hole; 11. Conical tube; 12. Sliding tube. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1 to 3 This utility model provides an embodiment of a fastening anchor bolt device, including an anchor bolt body 1. The anchor bolt body 1 is the core part of this device, made of high-strength steel, with sufficient strength and durability. Its main function is to transmit external forces to the rock and soil to achieve fixation and support. The anchor bolt body 1 is provided with a grouting hole 10 for grouting material to ensure a tight bond between the anchor bolt and the rock and soil. A grout stop plug 2 is fixedly connected to the outside of the anchor bolt body 1. The grout stop plug 2 is installed on the outside of the anchor bolt body 1 to prevent grout leakage during grouting and to avoid unnecessary losses caused by leakage during the grouting process. A fastening mechanism 5 is fixedly connected to the outside of the anchor bolt body 1 to enhance the bonding force between the anchor bolt and the surrounding rock and soil. The fastening mechanism 5 includes multiple barbs 6, the inner sides of which are fixedly connected to the outer side of the anchor rod body 1. The front side of the multiple barbs 6 is spike-shaped. The design of the barbs 6 allows them to penetrate deeper into the soil and rock during anchor rod installation by pulling the spikes, effectively enhancing the anchoring force. A fixing assembly is fixedly connected to the outside of the anchor rod body 1. The fixing assembly includes a pad 3, the inner side of which is fixedly connected to the outer side of the anchor rod body 1. The pad 3 is used to provide uniform pressure distribution and prevent damage caused by excessive local stress when the anchor rod comes into contact with the outside. A nut 4 is fixedly connected to the rear side of the pad 3. The inner side of the nut 4... The anchor rod body 1 is fixedly connected to the outside of the anchor rod body 1. The nut 4 is connected to the outside of the anchor rod body 1 to further strengthen and fix the anchor rod. Multiple trapezoidal blocks 7 are fixedly connected to the outside of the anchor rod body 1. The top of the trapezoidal blocks 7 is rotatably connected to the bottom of the conical spikes 9. The outside of the trapezoidal blocks 7 is rotatably connected to the inside of the cylindrical shell 8. The cylindrical shell 8 is fixedly connected to the outside of the anchor rod body 1. The conical spikes 9 are slidably connected inside the cylindrical shell 8. The tops of the multiple conical spikes 9 are spike-shaped. Rotating the anchor rod body 1 drives the trapezoidal blocks 7 to rotate. The trapezoidal blocks 7 push the conical spikes 9 out to reinforce the rock and soil again.

[0017] Reference Figure 1 , Figure 4 and Figure 5An anchor bolt body 1 has an injection hole 10 inside. The injection hole 10 is a channel inside the anchor bolt body 1 used to inject grout, enhancing the bonding force between the anchor bolt and the soil / rock. Through the injection hole 10, the grout can be evenly distributed to the contact surface between the anchor bolt and the surrounding soil / rock, filling gaps, increasing friction and fixing effect. A conical tube 11 is slidably connected inside the anchor bolt body 1. The outer side of the conical tube 11 is slidably connected to the inside of the injection hole 10, and the outer side of the conical tube 11 is slidably connected to the inner side of multiple sliding tubes 12. The pipe 11 slides inside the grouting hole 10, pushing the sliding pipe 12 out of the outside of the anchor rod body 1, ensuring that the grout can evenly fill the entire anchoring area. Multiple sliding pipes 12 are slidably connected inside the anchor rod body 1, and the outside of the sliding pipes 12 are slidably connected inside the grouting hole 10. The sliding pipes 12 allow the grout to flow smoothly into the gap between the anchor rod and the soil. The grouting hole 10, the conical pipe 11 and the sliding pipes 12 work together to allow the grout to better fill the grouting space and ensure the anchor rod's firmness.

[0018] Working principle: The anchor body 1 is inserted into the rock and soil to be anchored in the fastening mechanism 5. By pulling the anchor body 1 backward, the grout stop plug 2 is installed on the outside of the anchor body 1. Its function is to prevent grout leakage during grouting and avoid unnecessary losses caused by leakage during the grouting process. The pad 3 is used to provide uniform pressure distribution to prevent damage caused by excessive local stress when the anchor is in contact with the outside. The nut 4 is connected to the outside of the anchor body 1 to further strengthen and fix the anchor. The spiked design of the barb 6 can effectively hook the rock and soil and enhance the anchoring force. Then, the anchor body 1 is rotated, which drives the trapezoidal block 7 to rotate, thereby pushing the conical spike 9 to slide out from the cylindrical shell 8 and penetrate the rock and soil, further strengthening the anchoring effect. Inside the anchor bolt body 1, grout is injected through the injection hole 10. The grout pushes the conical tube 11 forward, causing it to slide forward. The conical tube 11 then squeezes out the sliding tube 12. The chemical agent flows smoothly out through the injection hole 10, the conical tube 11, and the sliding tube 12 and penetrates into the gap between the anchor bolt and the soil. This process ensures that the grout is evenly distributed, fills the gap, increases friction and fixation effect, and significantly improves the bonding force between the anchor bolt and the soil.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fastening anchor bolt device, comprising an anchor bolt body (1), characterized in that: The anchor body (1) is externally fixedly connected to a grout stop plug (2), and the anchor body (1) is externally fixedly connected to a fastening mechanism (5). The fastening mechanism (5) includes multiple barbs (6), the inner sides of which are fixedly connected to the outer side of the anchor body (1), the outer side of which is fixedly connected to a fixing component, the outer side of which is fixedly connected to multiple trapezoidal blocks (7), the outer side of which is fixedly connected to a cylindrical shell (8), and the inner side of which is slidably connected to a conical spike (9).

2. The fastening anchor bolt device according to claim 1, characterized in that: The fixing component includes a pad (3), the inner side of which is fixedly connected to the outer side of the anchor body (1), and a nut (4) is fixedly connected to the rear side of the pad (3).

3. The fastening anchor bolt device according to claim 1, characterized in that: The anchor body (1) has an injection hole (10) inside, a conical tube (11) is slidably connected inside the anchor body (1), and multiple sliding tubes (12) are slidably connected inside the anchor body (1).

4. A fastening anchor bolt device according to claim 1, characterized in that: The front side of the multiple barbs (6) is spike-shaped, and the top of the multiple conical spikes (9) is spike-shaped.

5. A fastening anchor bolt device according to claim 3, characterized in that: The outer side of the conical tube (11) is slidably connected to the inside of the injection hole (10), and the outer side of the sliding tube (12) is slidably connected to the inside of the injection hole (10).

6. A fastening anchor bolt device according to claim 5, characterized in that: The top of the trapezoidal block (7) is rotatably connected to the bottom of the conical spike (9), and the outer side of the conical tube (11) is slidably connected to the inner side of the plurality of sliding tubes (12).

7. A fastening anchor bolt device according to claim 2, characterized in that: The inner side of the nut (4) is fixedly connected to the outer side of the anchor body (1), and the outer side of the trapezoidal block (7) is rotatably connected to the inside of the cylindrical shell (8).

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