A new type of assembled guide cap for soil nailing flower pipe

Abstract

The utility model discloses a novel assembly type guide cap for soil nail flower pipe, the guide cap is installed in the end of hollow cylinder, wherein, the guide cap includes: guide cap main part, the guide cap main part is the conical body structure of tip -down, the guide cap main part is hollow structure, and the bottom surface of conical body has the opening, to make the end of hollow cylinder can stretch into the guide cap main part, the reinforcing rib is welded in the outer surface of guide cap main part, and along the generatrix direction of conical body structure extends, bolt, the bolt has several, and different bolt is with horizontal and longitudinal direction and is passed through the guide cap main part and the part of hollow cylinder that stretches into the guide cap main part, and is locked on the guide cap main part through the nut.

Description

Technical Field

[0001] This utility model relates to the field of soil nailing pipe technology, and in particular to a novel assembled guide cap for soil nailing pipe. Background Technology

[0002] In soil nailing support technology, the guide cap, as a key component of the soil nailing perforated pipe, primarily guides the perforated pipe smoothly into the soil and protects the pipe end structure. Traditional soil nailing perforated pipe guide caps have several shortcomings: First, their structural strength is limited; when dealing with hard soil layers, the guide cap body is prone to deformation or wear, affecting the soil penetration efficiency and the service life of the perforated pipe. Second, the connection positioning accuracy between the guide cap and the hollow cylinder is insufficient, making it difficult to ensure center alignment during installation, resulting in poor connection stability. Third, the bolt connection structure design is unreasonable; the exposed bolts and nuts are prone to friction and collision with the surrounding soil during soil nail driving, not only reducing construction efficiency but also potentially causing bolt loosening or structural damage. Furthermore, traditional guide caps suffer from poor flow or sealing during concrete slurry diversion, affecting the overall performance of the support structure. Therefore, there is an urgent need for a new type of prefabricated guide cap with high structural strength, convenient installation, low soil penetration resistance, and the ability to ensure smooth concrete slurry diversion. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a novel assembled guide cap for soil nailing pipes.

[0004] The technical solution of this utility model is implemented as follows: This utility model provides a novel assembled guide cap for soil nailing pipes, wherein the guide cap is installed at the end of a hollow cylinder; The guide cap includes: The guide cap body is a cone-shaped structure with the pointed end facing down. The guide cap body is hollow and has an opening on the bottom surface of the cone so that the end of the hollow cylinder can extend into the guide cap body. Reinforcing ribs are welded to the outer surface of the guide cap body and extend along the generatrix direction of the conical structure; Bolts, of which there are several, different bolts penetrate the guide cap body and the portion of the hollow cylinder extending into the guide cap body in the transverse and longitudinal directions, and are locked to the guide cap body by nuts.

[0005] The advantages or beneficial effects of the above technical solutions include at least the following: The guide cap body adopts a hollow conical structure with the tip pointing downwards, combined with a reinforcing rib design extending along the generatrix, which effectively improves the overall structural strength and impact resistance of the guide cap. Especially when dealing with hard soil layers, it can easily cut into the soil through the serrated cap tip, and the reinforcing ribs can strengthen the cap body and cap tip, reducing the risk of deformation during the soil insertion process. The positioning cylinder added in the second embodiment has the same inner diameter as the outer diameter of the hollow cylinder, which can realize the automatic alignment of the hollow cylinder with the center of the guide cap. Compared with the traditional installation method, it significantly improves the positioning accuracy and installation efficiency, and avoids the problem of unstable connection caused by center offset. 2. Bolts arranged horizontally and vertically penetrate the guide cap body, transition cylinder and hollow cylinder, and are locked with nuts to form a multi-directional fixed constraint, which effectively prevents relative rotation between the guide cap body and the hollow cylinder, ensures the stability of the connection between the two and meets the use requirements under complex working conditions. 3. In the third embodiment, the guide cap body retracts a predetermined distance from the center corresponding to the positioning cylinder, reducing the exposed portion of the bolts and nuts. During the driving of the soil nailing pipe, this significantly reduces friction and collision with the surrounding soil, thereby improving driving efficiency and reducing construction resistance. The hollow structure and bottom opening design of the guide cap body, combined with the gap formed by the hollow cylindrical end extending in, provide a smooth outflow channel for the concrete slurry, ensuring that the slurry can flow evenly into the channel formed by the soil nailing pipe through the guide cap when the concrete slurry is injected, thus ensuring the integrity and stability of the support structure. Attached Figure Description

[0006] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0007] Figure 1 A schematic diagram of the guide cap body in the first embodiment of this utility model is shown; Figure 2 This diagram illustrates an embodiment of the present invention where the guide cap body is mounted on a hollow cylinder using bolts. Figure 3 A cross-sectional schematic diagram of the guide cap body in the first embodiment of this utility model is shown; Figure 4 The diagram shows a structural schematic and a cross-sectional schematic of the guide cap body in the second embodiment of this utility model; Figure 5 The diagram shows a structural schematic and a cross-sectional schematic of the guide cap body in the third embodiment of this utility model; Figure 6The figure shows a bottom view comparison between the third embodiment and the second embodiment of the present invention. The upper half of the figure is the second embodiment and the lower half is the third embodiment. It can be seen from the figure that in the third embodiment, the exposed parts of the bolts and nuts are reduced compared with the second embodiment. Reference numerals: 10, hollow cylinder; 11, screw hole; 20, guide cap; 21, guide cap body; 211, positioning cylinder; 212, transition cylinder; 22, reinforcing rib; 23, bolt. Detailed Implementation

[0008] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0009] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0010] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0011] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0012] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0013] Reference Figure 1 A novel assembled guide cap for soil nailing pipes, wherein the guide cap 20 is installed at the end of a hollow cylinder 10, wherein the wall thickness of the hollow cylinder 10 is 3mm. The guide cap 20 includes: The guide cap body 21 has a wall thickness of 3mm. The guide cap body 21 has a cone structure with the tip pointing downwards. The guide cap body 21 has a hollow structure, and the bottom surface of the cone has an opening so that the end of the hollow cylinder 10 can be inserted into the guide cap body 21. Four reinforcing ribs 22 are welded to the outer surface of the guide cap body 21 and extend along the generatrix of the conical structure. Specifically, the reinforcing ribs 22 are A8 steel bars. The part near the cone tip is close to the cone so that the tip of the cap has a serrated structure to better enter the soil. At the same time, it can reinforce the body and tip of the guide cap body 21, increase the overall structural strength of the guide cap 20 to cope with harder soil layers. Bolt 23, specifically four M12×100 bolts 23, are used. Different bolts 23 penetrate the guide cap body 21 and the hollow cylinder 10 in the transverse and longitudinal directions. Since there is a gap between the inner wall of the guide cap body 21 and the hollow cylinder 10, a single bolt 23 will cause the guide cap body 21 and the hollow cylinder to rotate. Therefore, it is necessary to fix it in both the transverse and longitudinal directions and lock it to the guide cap body 21 with a nut. The hollow cylinder has a 10mm diameter screw hole 11 in the part corresponding to the bolt 23 so that the bolt 23 can penetrate the hollow cylinder. Furthermore, the bolts 23 that penetrate the guide cap body 21 transversely and the bolts 23 that penetrate the guide cap body 21 longitudinally are grouped into a bolt group 23 to ensure that the hollow cylinder can be firmly fixed to the guide cap body 21.

[0014] In the second embodiment, the structure of the guide cap body 21 is improved based on the above structure. The guide cap body 21 further includes a positioning cylinder 211. The inner diameter of the positioning cylinder 211 is consistent with the outer diameter of the hollow cylinder 10, so that the hollow cylinder 10 can be fitted into the positioning cylinder 211. This can ensure that the hollow cylinder 10 is aligned with the center of the guide cap 20. Compared with the above structure, the center cylinder needs to be installed in the positioning cylinder 211 and then fixed by bolts 23 during installation, which makes the installation more accurate and convenient. The guide cap body 21 further includes a transition cylinder 212, the two ends of which are welded to the inner wall of the guide cap body 21 and the outer wall of the positioning cylinder 211, respectively, and the transition cylinder 212 creates a gap between the positioning cylinder 211 and the inner wall of the guide cap body 21. The transition cylinder 212 is a hollow structure, and the bolt 23 can pass through the transition cylinder 212 to penetrate the guide cap body 21; In the third embodiment, based on a further improvement of the second embodiment, the portion of the guide cap body 21 corresponding to the positioning cylinder 211 is retracted towards the center by a predetermined distance, wherein the predetermined distance is the thickness of the threaded portion of the bolt 23 and the thickness of the nut, so as to reduce the exposed portions of the bolt 23 and the nut, such as... Figure 5 and Figure 6 As shown, when using soil nailing pipes, it can reduce the friction and collision between the bolts 23 and nuts and the outer wall, and improve the nailing efficiency.

[0015] When in use, the hollow round tube with guide cap 20 is inserted into the inner wall of the foundation pit, and then concrete grout is injected into the other end of the hollow round tube. The concrete grout will be discharged from the other end and flow out through the opening of the guide cap body 21 (i.e., the gap between the inner wall of the guide cap body 21 and the hollow round tube) and injected into the channel formed by the soil nailing pipe.

[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A novel assembled guide cap for soil nailing perforated pipes, characterized in that: The guide cap (20) is installed at the end of the hollow cylinder (10); The guide cap (20) includes: The guide cap body (21) has a cone structure with the tip pointing downwards. The guide cap body (21) is hollow and the bottom surface of the cone has an opening so that the end of the hollow cylinder (10) can be inserted into the guide cap body (21). A reinforcing rib (22) is welded to the outer surface of the guide cap body (21) and extends along the generatrix direction of the conical structure; Bolts (23), there are several bolts (23), different bolts (23) penetrate the guide cap body (21) and the hollow cylinder (10) in the transverse and longitudinal directions, and are locked to the guide cap body (21) by nuts.

2. The novel assembled guide cap for soil nailing perforated pipes according to claim 1, characterized in that: in, The bolts (23) that pass through the guide cap body (21) laterally and the bolts (23) that pass through the guide cap body (21) longitudinally constitute a bolt (23) group. At least two bolt (23) groups are provided on the guide cap body (21) along its height direction.

3. The novel assembled guide cap for soil nailing perforated pipes according to claim 1, characterized in that: The guide cap body (21) further includes: Positioning cylinder (211), the inner diameter of which is consistent with the outer diameter of the hollow cylinder (10), so that the hollow cylinder (10) can be fitted into the positioning cylinder (211); The transition cylinder (212) has its two ends welded to the inner wall of the guide cap body (21) and the outer wall of the positioning cylinder (211), respectively, and the transition cylinder (212) creates a gap between the positioning cylinder (211) and the inner wall of the guide cap body (21). The transition cylinder (212) is a hollow structure, and the bolt (23) can pass through the transition cylinder (212) through the guide cap body (21).

4. The novel assembled guide cap for soil nailing perforated pipes according to claim 3, characterized in that: The portion of the guide cap body (21) corresponding to the positioning cylinder (211) is retracted a predetermined distance toward the center to reduce the exposed portions of the bolt (23) and the nut.

5. The novel assembled guide cap for soil nailing perforated pipes according to claim 4, characterized in that: The predetermined distance is the thickness of the head portion of the bolt (23) and the thickness of the nut.

6. The novel assembled guide cap for soil nailing perforated pipes according to any one of claims 1-5, characterized in that: The hollow tube has a screw hole (11) on the part corresponding to the bolt (23) so that the bolt (23) can pass through the hollow tube.

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