Embedded anchor protection structure

Abstract

The utility model discloses an embedded anchor protection structure, which belongs to the technical field of anchor protection, and comprises an anchor protection piece, a fastener and a tray, the end part of the anchor protection piece is provided with a threaded rod, and the fastener comprises a connecting sleeve and a fastening part which are connected; an inner ring of the connecting sleeve is provided with an internal thread in threaded fit with the threaded rod, and the tray is arranged on the outer side of the connecting sleeve in a sleeving mode and is pressed and fixed through a fastening part. During anchor protection operation, the threaded rod is not exposed out of the supporting surface, the connecting sleeve penetrates through the mounting hole in the tray and goes deep into the mounting hole of the anchor protection piece, so that the connecting sleeve and the threaded rod are screwed in the mounting hole in a threaded mode, the tray is pressed and fixed, and the anchor protection operation is completed. Due to the fact that the threaded rod is of an embedded structure, the problem that the supporting strength is affected due to the fact that the threaded rod is collided and damaged by the hydraulic support can be effectively solved, and reliability and safety of supporting are guaranteed. The overall structure is simple, implementation is easy, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of anchor protection, specifically an embedded anchor protection structure. BACKGROUND

[0002] Anchor protection is a supporting technology used in engineering such as roadway, tunnel, and mine, which mainly fixes surrounding rock through components such as anchor rod or anchor cable to enhance its stability. Anchor protection technology includes various types, such as anchor rod support, anchor cable support, etc., each of which has its specific application scenario and advantages and disadvantages.

[0003] Anchor rod support is to drill a hole underground first, then cement the prestressed anchor rod in the hole and tension the anchor rod, form a certain length of prestressed anchor rod, and then firmly fix it on the bedrock or reinforcement structure with anchoring agent, so as to have good anchoring effect. This method is suitable for rock consolidation or some parts in soil or rock-soil that need to be reinforced under certain action and are prone to damage, such as underground tunnel, slope, yellow grass beam, hydropower station rockfill dam, subway, etc.

[0004] Anchor cable support, also known as anchor cable reinforcement or prestressed anchor cable, is a supporting method that inserts steel wire rope and other materials into the pre-set hole underground, and tensions the prestress in the hole to resist the swelling and shrinking deformation of the soil body and keep it stable. This method is suitable for relatively weak soil such as sand and loess to strengthen the resistance of the soil body, and is commonly used for retaining wall, tunnel and foundation pit support.

[0005] At present, during the construction of anchor protection parts (anchor rod, anchor cable), the end of the anchor protection part usually has a margin to provide enough installation stroke for the tray and nut, but the end of the anchor protection part is exposed, which is easy to collide with the exposed part of the anchor protection part during the movement of the hydraulic support, causing damage to the anchor protection structure and affecting the supporting strength. UTILITY MODEL CONTENTS

[0006] To solve the problem that the end of the traditional anchor protection part usually has a margin to provide enough installation stroke for the tray and nut, but the end of the anchor protection part is exposed, which is easy to collide with the exposed part of the anchor protection part during the movement of the hydraulic support, causing damage to the anchor protection structure and affecting the supporting strength, the utility model provides an embedded anchor protection structure.

[0007] The utility model is realized by the following technical solutions:

[0008] An embedded anchor protection structure, comprising an anchor protection part, a fastener and a tray, the end of the anchor protection part is provided with a threaded rod, the fastener comprises a connecting sleeve and a fastening part connected; the inner thread of the connecting sleeve inner ring is provided with an inner thread matched with the threaded rod, the tray is sleeved on the outer side of the connecting sleeve and is fixed by the fastening part.

[0009] The further improvement of the utility model still has that the side of the tray far from the anchor protection piece is equipped with the protection edge surrounding the fastening part, and the operation gap is left between the protection edge and the fastening part.

[0010] The further improvement of the utility model still has that the plane of the side of the protection edge far from the tray is outside the end surface of the fastening part.

[0011] The further improvement of the utility model still has that the outer ring of the fastening part is regular hexahedron structure.

[0012] The further improvement of the utility model still has that the fastening part and the connecting sleeve are integrally machined.

[0013] The further improvement of the utility model still has that the middle part of the fastening part is equipped with the through hole penetrating the connecting sleeve.

[0014] The further improvement of the utility model still has that the through hole is equipped with the protection plug.

[0015] The further improvement of the utility model still has that the inner and outer edges of the end of the connecting sleeve far from the fastening part are all chamfered.

[0016] The further improvement of the utility model still has that the connecting sleeve is equipped with the flat washer and the wear-reducing washer between the fastening part and the tray.

[0017] From the above technical scheme, the beneficial effects of the utility model are:

[0018] When the anchor protection is operated, the threaded rod does not expose the supporting surface, the connecting sleeve passes through the mounting hole on the tray and is deeply inserted into the mounting hole of the anchor protection piece, so that the connecting sleeve and the threaded rod are threadedly connected in the mounting hole, the tray is fixed by pressing, and the anchor protection operation is completed. Since the threaded rod is of an embedded structure, the problem that the hydraulic support knocks and damages the threaded rod and affects the supporting strength can be effectively avoided, the reliability and safety of the support are ensured. The overall structure is simple, easy to realize and good in practicality. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is the structural schematic diagram of the specific embodiment of the utility model.

[0021] Figure 2 It is the fastening part and the protection edge schematic diagram of the specific embodiment of the utility model.

[0022] In the drawing: 1, anchor protection piece, 11, threaded rod, 2, fastener, 21, fastening part, 22, connecting sleeve, 3, tray, 31, protective edge, 4, flat washer, 5, wear-reducing washer. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the patent.

[0024] As shown in the drawing, Figures 1-2 The utility model discloses an inner-buried anchor protection structure, which comprises an anchor protection piece 1 (anchor rod or anchor cable), a fastener 2 and a tray 3. The end of the anchor protection piece 1 is provided with a threaded rod 11 (the anchor rod is directly provided with external threads at the end to form the threaded rod 11; the anchor cable is connected with the fixed threaded rod 11 at the end). The fastener 2 comprises a connecting sleeve 22 and a fastening part 21 which are connected in head-tail mode. An inner thread is formed in the inner ring of the connecting sleeve 22 to be screwed with the threaded rod 11. The tray 3 is sleeved on the outer side of the connecting sleeve 22 and is fixed by press fitting through the fastening part 21.

[0025] During the anchor protection operation, the threaded rod 11 does not expose the supporting surface. The connecting sleeve 22 penetrates through the mounting hole of the tray 3 and is deeply inserted into the mounting hole of the anchor protection piece, so that the connecting sleeve 22 is screwed with the threaded rod 11 in the mounting hole. The tray 3 is fixed by press fitting, and the anchor protection operation is completed. Since the threaded rod 11 is in an inner-buried structure (does not expose the supporting surface), the problem that the hydraulic support knocks and damages the threaded rod 11 and affects the supporting strength can be effectively avoided, the reliability and safety of the support are ensured, the length of the anchor protection piece 1 is shortened, the material is reduced, and the cost is reduced. The overall structure is simple, easy to realize and good in practicability.

[0026] The flat washer 4 and the wear-reducing washer 5 are sleeved on the connecting sleeve 22 between the fastening part 21 and the tray 3. The flat washer 4 is made of a metal gasket, the wear-reducing washer 5 is made of a rubber gasket, and the flat washer 4 is arranged between the wear-reducing washer 5 and the tray 3, so that the direct contact and wear between the fastening part 21 and the tray 3 are effectively avoided, and the phenomenon of thread stripping is effectively prevented.

[0027] The outer ring of the fastening part 21 is in a regular hexahedral structure. Other clamping and rotating structure shapes can also be adopted. The wrench (sleeve wrench) is clamped and rotated for operation.

[0028] The side of the tray 3 away from the anchor protection piece 1 (for example, the side of the tray 3 away from the connecting sleeve 22) is provided with a protective edge 31. The protective edge 31 is arranged on the side of the tray 3 away from the connecting sleeve 22, so that the tray 3 is prevented from being damaged by the connecting sleeve 22. Figure 1The lower side) is provided with a protective edge 31 surrounding the fastening part 21, and an operating gap is left between the protective edge 31 and the fastening part 21, so that the wrench can be flexibly rotated to clamp the fastening part 21. The protective edge 31 protects the fastening part 21, effectively avoiding damage to the fastening part 21 caused by the hydraulic support.

[0029] Further, the protective edge 31 is in the shape of a circular ring, a square or other polygon. The protective edge 31 protects the fastening part 21 while strengthening the structural performance of the tray 3 itself.

[0030] Further, the side of the protective edge 31 away from the tray 3 (for example, Figure 1 The plane on which the lower side of the protective edge 31 is located is outside the end surface of the fastening part 21, that is, Figure 1 As shown, after the anchoring is completed, the lower side of the protective edge 31 is lower than the lower end surface of the fastening part 21, ensuring the protective effect of the protective edge 31 on the fastening part 21.

[0031] Among them, the fastening part 21 and the connecting sleeve 22 are integrally machined. The machining is convenient, and the structural strength of the fastener 2 as a whole is effectively ensured.

[0032] Among them, the middle part of the fastening part 21 is provided with a through hole penetrating the connecting sleeve 22. It is convenient for machining.

[0033] Among them, after the anchoring is completed, a protective plug is arranged in the through hole. It effectively avoids the influence of sundries entering through the through hole on the threaded connection part.

[0034] Further, the through hole can be machined into a square, a regular hexagon, etc., and the wrench (internal hexagon, etc.) can be used to rotate and install the fastener 2.

[0035] In order to ensure the convenience of connecting the connecting sleeve 22 with the threaded rod 11, the inner and outer edges of the end of the connecting sleeve 22 away from the fastening part 21 are chamfered, which plays a guiding role.

[0036] The inner anchoring structure is used. During anchoring operation, the threaded rod 11 does not expose the support surface, the connecting sleeve 22 penetrates through the mounting hole of the tray 3 and penetrates into the mounting hole of the anchoring part, so that the connecting sleeve 22 and the threaded rod 11 are screwed in the mounting hole. Threaded connection, press-fit fixation of the tray 3, completion of the anchoring operation. Since the threaded rod 11 is in an inner buried structure (does not expose the support surface), it can effectively avoid the damage of the hydraulic support to the threaded rod 11, and can effectively avoid the damage of the hydraulic support to the threaded rod 11. The problem of affecting the support strength ensures the reliability and safety of the support. The overall structure is simple, easy to realize, and has good practicality.

[0037] In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be mutually referred to.

[0038] The terms "upper", "lower", "outer" "inner" and the like in the description and the claims of the present utility model and the above drawings, if any, are used to distinguish relative positions, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0039] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An embedded anchoring structure, characterized by, The anchor guard (1), the fastener (2) and the tray (3) are included, the end of the anchor guard (1) is provided with a threaded rod (11), the fastener (2) includes connected connecting sleeve (22) and fastening part (21), the inner thread of the inner circle of connecting sleeve (22) is provided with the inner thread matched with the threaded rod (11), the tray (3) is sleeved on the outside of connecting sleeve (22), and is fixed by fastening part (21) pressure package.

2. The embedded anchoring structure according to claim 1, wherein, The side of tray (3) away from anchor guard (1) is provided with the protection edge (31) surrounding fastening part (21), and the operation gap is left between protection edge (31) and fastening part (21).

3. The embedded anchoring structure according to claim 2, wherein, The plane of the side of protection edge (31) away from tray (3) is on the outside of the end face of fastening part (21).

4. The embedded anchoring structure of claim 1, wherein, The outer circle of fastening part (21) is hexagonal structure.

5. The embedded anchoring structure of claim 1, wherein, Fastening part (21) and connecting sleeve (22) are integrally machined.

6. The embedded anchoring structure of claim 1, wherein, The middle part of fastening part (21) is provided with through hole passing through connecting sleeve (22).

7. The embedded anchoring structure according to claim 6, wherein The through hole is provided with protection plug.

8. The embedded anchoring structure of claim 1, wherein, The inner and outer sides of the end of connecting sleeve (22) away from fastening part (21) are all chamfered.

9. The embedded anchoring structure of claim 1, wherein, Connecting sleeve (22) is provided with flat washer (4) and wear-reducing washer (5) between fastening part (21) and tray (3).

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