Anchor bar pile extension structure

Abstract

The utility model discloses an anchor bar pile lengthening structure which comprises a connecting disc and fixing discs symmetrically arranged on the upper side and the lower side of the connecting disc, and the fixing discs and the connecting disc are fixedly connected through a plurality of connecting columns. Main through holes corresponding to the main ribs are formed in the connecting disc and the fixing disc; fastening cylinders corresponding to the main through holes are coaxially and fixedly arranged on the connecting disc, taper holes are formed in the centers of the fastening cylinders, and clamping pieces used for fixing the main ribs are arranged in the taper holes; an external thread is arranged on the periphery of the fastening cylinder; each fastening cylinder is correspondingly provided with an outer sleeve, a convex threaded through hole is formed in each outer sleeve, and each threaded through hole comprises an upper threaded hole section matched with the threaded section of the corresponding main rib and a lower threaded hole section matched with the external threads of the corresponding fastening cylinder. The anchor bar pile has the advantage of being high in connection strength, assembly type extension of the anchor bar pile is achieved, and the construction efficiency of the anchor bar pile is improved.

Description

Technical Field

[0001] This utility model relates to the field of anchor pile construction. More specifically, this utility model relates to an anchor pile extension structure. Background Technology

[0002] Anchor piles are commonly used in slope and landslide prevention construction. Compared to traditional retaining structures such as anti-slide piles and retaining walls, they offer advantages such as lightweight retaining structures and lightweight construction machinery. They provide support by fully utilizing the combined structure formed by the interaction between the retaining structure and the soil mass. During anchor pile construction, multiple main reinforcing bars and grouting pipes need to be tied together or fixed together using supports before being hoisted into the pile hole, followed by grouting. For landslide control projects with significant depth, it is often necessary to extend the main reinforcing bars in the anchor piles. Currently, the conventional extension methods are welding or using threaded sleeves. When using welding, the welding process is highly demanding on the limited-size construction platform on the slope, and it is difficult to ensure complete alignment of the main reinforcing bars. While using threaded sleeves allows for prefabricated connection of the main reinforcing bars, each main reinforcing bar and grouting pipe still needs to be tied and fixed. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages to be described below.

[0004] To achieve these objectives and other advantages according to this utility model, an anchor pile extension structure is provided. The anchor pile includes multiple main reinforcing bars and a grouting pipe. Each main reinforcing bar has threaded sections at both ends, including a connecting plate and fixed plates symmetrically arranged on the upper and lower sides of the connecting plate. The fixed plates and the connecting plate are fixedly connected by multiple connecting columns. A main through hole is provided on the connecting plate and the fixed plate corresponding to each main reinforcing bar. A fastening cylinder is coaxially fixed on the connecting plate corresponding to each main through hole. A conical hole is provided in the center of the fastening cylinder, and a clamping piece for fixing the main reinforcing bar is provided inside the conical hole. External threads are provided on the outer periphery of the fastening cylinder. Each fastening cylinder is correspondingly provided with an outer sleeve. The inner surface of the outer sleeve has a U-shaped threaded through hole, which includes an upper threaded hole section that mates with the threaded section of the main reinforcing bar and a lower threaded hole section that mates with the external thread of the fastening cylinder.

[0005] Preferably, multiple clips are provided, and the multiple clips are attached to the outer wall of the main rib along the circumference of the main rib.

[0006] Preferably, the side of the clamp that fits against the main rib is provided with an internal thread that mates with the threaded section of the main rib.

[0007] Preferably, a gap is left between the inner top of the lower threaded hole section and the top surface of the fastening cylinder, and an injection hole communicating with the gap is provided on the outer sleeve.

[0008] Preferably, the connecting plate and the fixing plate are provided with grouting pipe through holes.

[0009] Preferably, the main through holes on the fixing plate are clearance-fitted with the main ribs.

[0010] The utility model has at least the following beneficial effects:

[0011] The anchor pile extension structure provided by this utility model achieves the docking and positioning of the main reinforcement bars through the connecting plate and the fastening cylinders and outer sleeves on it, resulting in high connection strength and realizing the prefabricated extension of the anchor piles. Furthermore, the connecting plate, combined with the upper and lower fixing plates, simultaneously realizes the positioning and fixing of each main reinforcement bar of the anchor pile, further improving the construction efficiency of the anchor piles.

[0012] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0013] Figure 1 This is a side view of the anchor pile extension structure of this utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the AA section structure;

[0015] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the outer sleeve and the fastening sleeve of this utility model;

[0016] Figure 4 This is a top view of the fixed disk described in this utility model; Detailed Implementation

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0018] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "horizontal", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0019] like Figures 1 to 4 As shown, this utility model provides an anchor pile extension structure. The anchor pile includes multiple main reinforcing bars 4 and a grouting pipe 5. Threaded sections are provided at both ends of the main reinforcing bars 4. The anchor pile extension structure includes a connecting plate 1 and fixing plates 3 symmetrically arranged on the upper and lower sides of the connecting plate 1. The fixing plates 3 and the connecting plate 1 are fixedly connected by multiple connecting columns 2. Main through holes are provided on the connecting plate 1 and the fixing plates 3 corresponding to each main reinforcing bar 4. Fastening cylinders 7 are coaxially fixed on the connecting plate 1 corresponding to each main through hole. A conical hole is provided in the center of the fastening cylinder 7, and a clamping piece 8 for fixing the main reinforcing bar 4 is provided inside the conical hole. External threads are provided on the outer periphery of the fastening cylinder 7. Each fastening cylinder 7 is correspondingly provided with an outer sleeve 6. The inner part of the outer sleeve 6 is provided with a U-shaped threaded through hole, which includes an upper threaded hole section that mates with the threaded section of the main reinforcing bar and a lower threaded hole section that mates with the external thread of the fastening cylinder.

[0020] In this technical solution, the connecting plate 1 and the fastening cylinders 7 and the outer sleeve 6 thereon together achieve the docking and positioning of each main rib 4. Specifically, the upper threaded section of the lower main rib 4 passes through the main through hole on the lower fixing plate 3 and the connecting plate 1 in sequence and enters the tapered hole of the fastening cylinder 7, and slightly protrudes from the fastening cylinder 7. Then, the clamping piece 8 is inserted into the tapered hole to fix the main rib 4 in the fastening cylinder. Then, the lower threaded section of the upper main rib 4 passes through the upper fixing plate 3 and is screwed onto the outer sleeve 6, so that the threaded section of the main rib 4 fills the upper threaded hole section of the outer sleeve 6 as much as possible. The outer sleeve 6 is pulled down and connected to the external thread of the fastening cylinder 7 through the lower threaded hole section until the upper and lower main ribs 4 are completely abutted. Following the above process, the main reinforcing bars 4 are connected sequentially. Simultaneously, the connecting plate 1 and the two fixing plates 3 can position and fix each main reinforcing bar 4 without additional binding or bracket fixation. Compared to conventional welding connections, this allows for rapid prefabricated extension, effectively improving the efficiency of anchor pile extension. Preferably, the diameters of the connecting plate and the fixing plate are matched to the pile hole size of the anchor pile, ensuring that the center of the anchor pile is located at the center of the pile hole, further improving the construction efficiency of the anchor pile.

[0021] In another technical solution, multiple clamping pieces 8 are provided, and the multiple clamping pieces 8 are attached to the outer wall of the main rib 4 along the circumference of the main rib 4. The multiple clamping pieces 8 can be arranged in pairs with intervals or in pairs continuously.

[0022] Furthermore, the side of the clamping piece 8 that is in contact with the main rib 4 is provided with an internal thread that mates with the threaded section of the main rib 4. The engagement of the internal thread with the threaded section of the main rib 4 increases the friction between the clamping piece 8 and the main rib 4, thereby more securely fixing the main rib 4 to the fastening cylinder 7.

[0023] In another technical solution, a gap is left between the inner top of the lower threaded hole section and the top surface of the fastening cylinder 7, and an injection hole 61 communicating with the gap is provided on the outer sleeve 6. Adhesive or anchoring agent is injected into the gap between the inner top of the lower threaded hole section and the top surface of the fastening cylinder 7 through the injection hole 61 to further increase the connection strength between the two main reinforcing bars 4.

[0024] In another technical solution, the connecting plate 1 and the fixing plate 3 are provided with grouting pipe through holes 32 for positioning and fixing the grouting pipe 5.

[0025] In another technical solution, considering that after the outer sleeve 6 is threadedly connected to the threaded section of the main rib 4, it will rotate with the main rib 4 when it is threadedly connected to the fastening sleeve 7, therefore, each of the main through holes 31 on the fixed plate 3 is clearance-fitted with the main rib 4.

[0026] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An anchor pile extension structure, wherein the anchor pile comprises multiple main reinforcing bars and a grouting pipe, and each of the main reinforcing bars has a threaded section at both ends, characterized in that, The device includes a connecting plate and fixed plates symmetrically arranged on the upper and lower sides of the connecting plate. The fixed plates and the connecting plate are fixedly connected by multiple connecting posts. The connecting plate and the fixed plate have main through holes corresponding to each main rib. A fastening cylinder is coaxially fixed on the connecting plate corresponding to each main through hole. The fastening cylinder has a conical hole in its center, and a clamp for fixing the main rib is provided in the conical hole. The fastening cylinder has external threads on its outer periphery. Each fastening cylinder has an outer sleeve corresponding to it. The inner part of the outer sleeve has a U-shaped threaded through hole. The threaded through hole includes an upper threaded hole section that mates with the threaded section of the main rib and a lower threaded hole section that mates with the external thread of the fastening cylinder.

2. The anchor pile extension structure as described in claim 1, characterized in that, Multiple clamping pieces are provided, and the multiple clamping pieces are attached to the outer wall of the main reinforcing bar along the circumference of the main reinforcing bar.

3. The anchor pile extension structure as described in claim 2, characterized in that, The side of the clamp that is in contact with the main reinforcing bar is provided with an internal thread that matches the threaded section of the main reinforcing bar.

4. The anchor pile extension structure as described in claim 1, characterized in that, A gap is left between the inner top of the lower threaded hole section and the top surface of the fastening cylinder, and an injection hole communicating with the gap is provided on the outer sleeve.

5. The anchor pile extension structure as described in claim 1, characterized in that, The connecting plate and the fixing plate are provided with grouting pipe through holes.

6. The anchor pile extension structure as described in claim 1, characterized in that, The main through holes on the fixed plate are fitted with the main ribs with clearance.

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