A soil anchor

Abstract

The utility model relates to the technical field of building engineering, concretely is a kind of soil layer anchor rod. Including pole body, the one end of pole body is inserted with installation screw rod, and the other end of pole body is provided with extruding rod, and the end of installation screw rod is equipped with locknut, the side of locknut close to pole body is provided with fixed base, and gasket is provided on fixed base, the outside of pole body is coated with anticorrosive coating, the outside of extruding rod is equipped with anchor rod, and the outside of anchor rod is provided with sliding block in circumference, the outside of pole body is equipped with protective sleeve, and the middle part of pole body and protective sleeve is provided with adhesive layer. After grouting is completed, when expanding head is not solidified, pull pole body and drive extruding rod to eject sliding block from anchor rod, insert into expanding head, after solidification, increase the structural strength between anchor rod and expanding head, ensure the stability of anchoring.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a soil anchor. Background Technology

[0002] Soil anchors, as an important geotechnical engineering reinforcement technology, are widely used in foundation pit support, slope stabilization, and structural anti-buoyancy projects. Their basic principle is to bury the tension member deep in stable soil to withstand the tensile force transmitted by the structure. Most existing anchors have a single-piece structure. For anchors requiring mechanical diameter expansion devices, these devices typically have complex internal mechanical structures, which can easily increase the failure rate of the device. Utility Model Content

[0003] To address the above problems, the purpose of this utility model is to provide a soil anchor rod that solves the problem that the complex internal mechanical structure of existing mechanically enlarged anchor rods easily increases the failure rate of the device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a soil anchor rod, comprising a rod body, an installation screw inserted at one end of the rod body, and a compression rod at the other end of the rod body. An anti-loosening nut is installed at the end of the installation screw, a fixing base is provided on the side of the anti-loosening nut near the rod body, and a washer is provided on the fixing base. The outer side of the rod body is coated with an anti-corrosion coating. An anchor rod is sleeved on the outer side of the compression rod, and a slider is provided circumferentially on the outer side of the anchor rod. A protective sleeve is sleeved on the outer side of the rod body, and an adhesive layer is provided in the middle of the rod body and the protective sleeve.

[0005] To facilitate the unfolding of the slider: As a further improvement to the above technical solution: the extrusion rod is provided with inclined grooves at equal intervals, and the inclined grooves on the extrusion rod are in close contact with the bottom of the slider.

[0006] As a further improvement to the above technical solution: the sliders are evenly distributed on the outside of the anchor rod.

[0007] The beneficial effects of this improvement are as follows: pulling the rod body drives the extrusion rod, and the inclined groove opened on the extrusion rod pushes the slider to extend out from the anchor rod and insert into the enlarged head. The sliders set at equal intervals can ensure the reliability of the connection between the slider and the enlarged head.

[0008] As a further improvement to the above technical solution: the anchor rod and the compression rod are arranged with their axes coincident.

[0009] As a further improvement to the above technical solution, the outer side of the protective sleeve is roughened.

[0010] To ensure the reinforcement effect: As a further improvement to the above technical solution: the outer side of the gasket is provided with protrusions.

[0011] The beneficial effects of this improvement are: the protrusion can increase the friction at the bottom of the pad, thereby ensuring the position of the pad and the fixed base, and ensuring the stability of the pad and the fixed base.

[0012] To facilitate grouting: As a further improvement to the above technical solution: the rod body and the extrusion rod are provided with grouting channels, and the extrusion rod is provided with through holes on the outside.

[0013] As a further improvement to the above technical solution: a grouting through hole is provided on the outer side of the anchor rod.

[0014] The beneficial effects of this improvement are: the grouting pipe is connected to the rod body, and after grouting enters the interior of the anchor rod through the rod body and the extrusion rod, it forms an irregular enlarged head in the area near the anchor rod through the grouting through hole on the outside of the anchor rod.

[0015] The beneficial effects of this utility model are as follows: 1. After grouting is completed and before the enlarged head has solidified, pull the rod to drive the extrusion rod to push the slider out of the anchor rod and insert it into the enlarged head. After solidification, the structural strength between the anchor rod and the enlarged head will be increased to ensure the stability of the anchoring.

[0016] Second, the anti-corrosion coating on the outside of the pole, together with the adhesive layer and protective sleeve, isolates the pole from contact with corrosive media, increasing the service life of the pole. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall isometric structure.

[0018] Figure 2 This is a schematic diagram of the isometric structure of the rod and the extrusion rod.

[0019] Figure 3 This is a schematic diagram of the enlarged isometric sectional view of the anchor rod.

[0020] Figure 4 This is a schematic diagram of the overall main view structure.

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Rod body; 11. Mounting screw; 12. Anti-loosening nut; 13. Extrusion rod; 14. Anti-corrosion coating; 15. Adhesive layer; 2. Fixed base; 21. Washer; 3. Anchor rod; 31. Slider; 4. Protective sleeve. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0024] like Figure 1-5 As shown, a soil anchor bolt includes a rod body 1. One end of the rod body 1 is connected to a mounting screw 11, and the other end of the rod body 1 is provided with a clamping rod 13. An anti-loosening nut 12 is installed at the end of the mounting screw 11. A fixing base 2 is provided on the side of the anti-loosening nut 12 near the rod body 1, and a washer 21 is provided on the fixing base 2. The outer side of the rod body 1 is coated with an anti-corrosion coating 14. An anchoring rod 3 is sleeved on the outer side of the clamping rod 13, and a slider 31 is circumferentially arranged on the outer side of the anchoring rod 3. A protective sleeve 4 is sleeved on the outer side of the rod body 1, and an adhesive layer 15 is provided between the rod body 1 and the protective sleeve 4. Inclined grooves are evenly spaced on the clamping rod 13, and these grooves fit tightly against the bottom of the slider 31. The sliders 31 are evenly distributed on the outer side of the anchoring rod 3. Pulling the rod body 1 moves the clamping rod 13. The inclined groove pushes the slider 31 to extend and expand from the anchor rod 3 and insert into the enlarged head. The sliders 31 are arranged at equal intervals to ensure the reliability of the connection between the sliders 31 and the enlarged head. The anchor rod 3 and the extrusion rod 13 are arranged with their axes coincident. The outer side of the protective sleeve 4 is roughened. The outer side of the gasket 21 is provided with a protrusion. The protrusion increases the friction at the bottom of the gasket 21, thereby ensuring the position of the gasket 21 and the fixed base 2 and ensuring the stability of the gasket 21 and the fixed base 2. The rod body 1 and the extrusion rod 13 are provided with grouting channels. The extrusion rod 13 is provided with a through hole on its outer side. The anchor rod 3 is provided with a grouting through hole on its outer side. The grouting pipe is connected to the rod body 1. After grouting enters the interior of the anchor rod 3 through the rod body 1 and the extrusion rod 13, it forms an irregular enlarged head in the area near the anchor rod 3 through the grouting through hole on the outer side of the anchor rod 3.

[0025] The working principle of this utility model is as follows: When using this device, the anchor rod 3 is inserted into the soil layer, and the grouting pipe is connected to the rod body 1. Grouting is injected through the rod body 1 and the extrusion rod 13 into the interior of the anchor rod 3, and then through the grouting through hole on the outside of the anchor rod 3 to form an irregular enlarged head in the area near the anchor rod 3. After the grouting is completed and the enlarged head has not solidified, the rod body 1 is pulled to drive the extrusion rod 13 to push the slider 31 out from the anchor rod 3 and insert it into the enlarged head. After solidification, the structural strength between the anchor rod 3 and the enlarged head is increased to ensure the stability of the anchoring. After solidification, the installation screw 11 is used to install it at the end of the rod body 1. Then, the fixed base 2 and the washer 21 are used in conjunction with the anti-loosening nut 12 to fix the position of the rod body 1. During use, the anti-corrosion coating 14 on the outside of the rod body 1, together with the adhesive layer 15 and the protective sleeve 4, isolates the rod body 1 from the contact with corrosive media and increases the service life of the rod body 1.

[0026] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A soil anchor bolt, characterized in that: The rod includes a rod body (1), one end of which is connected to a mounting screw (11), and the other end of which is provided with a pressing rod (13). A locking nut (12) is installed at the end of the mounting screw (11). A fixing base (2) is provided on the side of the locking nut (12) near the rod body (1), and a gasket (21) is provided on the fixing base (2). The outer side of the rod body (1) is coated with an anti-corrosion coating (14). An anchor rod (3) is sleeved on the outer side of the pressing rod (13), and a slider (31) is provided on the outer circumferential side of the anchor rod (3). A protective sleeve (4) is sleeved on the outer side of the rod body (1), and an adhesive layer (15) is provided in the middle part between the rod body (1) and the protective sleeve (4).

2. A soil anchor bolt according to claim 1, characterized in that: The extrusion rod (13) has inclined grooves at equal intervals, and the inclined grooves on the extrusion rod (13) are in close contact with the bottom of the slider (31).

3. A soil anchor bolt according to claim 1, characterized in that: The sliders (31) are evenly distributed on the outside of the anchor rod (3).

4. A soil anchor bolt according to claim 1, characterized in that: The anchor rod (3) and the compression rod (13) are arranged with their axes coincident.

5. A soil anchor bolt according to claim 1, characterized in that: The outer side of the protective sleeve (4) is roughened.

6. A soil anchor bolt according to claim 1, characterized in that: The outer side of the gasket (21) is provided with protrusions.

7. A soil anchor bolt according to claim 1, characterized in that: The rod (1) and the extrusion rod (13) are provided with grouting channels, and the extrusion rod (13) is provided with through holes on the outside.

8. A soil anchor bolt according to claim 1, characterized in that: The anchor rod (3) has a grouting through hole on its outer side.

Images