Pile casing type anchor rod hole collapse protection device

Abstract

The utility model relates to the technical field of anchor rod engineering, in particular to a pile casing type anchor rod hole collapse protection device which comprises a reinforcing steel bar cylinder, a reinforcing steel bar mesh is welded on the reinforcing steel bar cylinder, and a dense-mesh steel wire mesh is wound on the outer side of the reinforcing steel bar cylinder. And a positioning mechanism for quickly positioning the circular reinforcement cylinder and the reinforcement mesh is arranged between the circular reinforcement cylinder and the reinforcement mesh. According to the utility model, firstly, the hole opening is protected and is tightly attached to the cushion layer, so that surrounding rock ballast and soil blocks cannot enter the hole; secondly, due to the downward reverse depth, a very good protection effect is achieved on a loose rock stratum, the phenomenon that surrounding pebbles fall into a cavity or collapse holes is avoided, through sliding connection of the positioning rods and the positioning holes, the steel bar cylinder and the steel bar mesh can be rapidly positioned, the convenience of welding operation of the steel bar cylinder and the steel bar mesh is improved, and the welding efficiency is improved. And through extension of the abutting rods, the stability of the steel bar barrel and the steel bar mesh after connection can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rod engineering, in particular to a casing type anchor rod hole collapse protection device. Background Art

[0002] The construction industry is currently a pillar industry in my country. With the development of cities, more and more buildings are built, and the foundation form is also selected according to the local environment. This project is located in the core area of ​​Laoshan.

[0003] At present, after drilling on site, woven bags are used to block the holes, which cannot prevent hole collapse and pollution in the holes. The depth of the holes is limited, and only local protection can be provided. The materials are wasted and need to be purchased in large quantities, and they cannot be used in a turnover manner. If the woven bags are not handled uniformly, they will also pollute the surrounding environment. There is also a safety issue. The hole width is 200mm, and there are many construction workers on site. If they are not careful, the woven bags will be stepped into the holes and may cause harm to the workers. Utility Model Content

[0004] The utility model aims to solve the problem that the prior art fails to prevent hole collapse and pollution in the hole, and proposes a casing type anchor hole collapse protection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A casing type anchor hole protection device comprises a steel bar cylinder, a steel bar mesh is welded on the steel bar cylinder, and a dense steel wire mesh is wound around the outer side of the steel bar cylinder;

[0007] A positioning mechanism for quickly positioning the steel bar cylinder and the steel bar mesh is provided between the steel bar cylinder and the steel bar mesh.

[0008] Preferably, the steel tube is a cylindrical structure, the steel mesh is a square structure, and the steel mesh corresponds to the center of the steel tube.

[0009] Preferably, the positioning mechanism includes a positioning rod fixedly connected to the steel cylinder, the steel mesh is provided with a positioning hole corresponding to the positioning rod, the positioning rod is provided with a guide groove, the guide groove is provided with a welded guide plate and a spring, and a resistance rod is fixedly connected to the guide plate.

[0010] Preferably, a receiving groove is provided at the top end of the positioning rod, and the upper end of the positioning rod is slidably mounted in the positioning hole.

[0011] Preferably, the guide slots are provided on the inner walls on both sides of the receiving slot, the guide plates are slidably mounted in the guide slots, and the springs are welded to the inner ends of the guide slots.

[0012] Preferably, the outer end of the interference rod is a spherical structure, and the end of the interference rod connected to the guide plate is a rectangular column structure.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model firstly protects the hole mouth, which is tightly fitted with the cushion layer, and the surrounding slag and soil blocks will not enter the hole. Secondly, the depth of the downward inversion plays a very good protective role on the loose rock layer, and the surrounding stones will not fall into the hole or collapse the hole.

[0015] 2. In the utility model, the positioning rod and the positioning hole are slidably connected, so that the steel tube and the steel mesh can be quickly positioned, which helps to improve the convenience of welding the steel tube and the steel mesh. The extension of the resistance rod can enhance the stability of the connection between the steel tube and the steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a casing type anchor hole collapse protection device proposed by the utility model;

[0017] Figure 2 For this utility model Figure 1 A top view of the

[0018] Figure 3 For this utility model Figure 1 A cross-sectional view of

[0019] Figure 4 For this utility model Figure 3 A is a schematic diagram of the partially enlarged structure.

[0020] In the figure: 1. steel bar cylinder; 2. steel bar mesh; 3. dense mesh; 4. positioning rod; 5. positioning hole; 6. guide groove; 7. guide plate; 8. spring; 9. resistance rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4A casing type anchor hole protection device comprises a steel tube 1, which is a cylindrical structure, a steel mesh 2 is welded on the steel tube 1, the steel mesh 2 is a square structure, and the steel mesh 2 corresponds to the center of the steel tube 1, and a dense steel wire mesh 3 is wound around the outside of the steel tube 1. The dense steel wire mesh 3 protects the hole and the hole mouth and fits tightly with the cushion layer, so that the surrounding slag and soil will not enter the hole. The depth of the steel tube 1 is reversed, which plays a very good protective role on the loose rock layer, and will not cause the surrounding stones to fall into the hole or collapse the hole;

[0023] A positioning mechanism for quickly positioning the steel tube 1 and the steel mesh 2 is provided between the steel tube 1 and the steel mesh 2. The positioning mechanism can quickly realize the center positioning operation of the steel tube 1 and the steel mesh 2, which helps to improve the convenience of welding the steel tube 1 and the steel mesh 2.

[0024] It is further explained that: the positioning mechanism includes a positioning rod 4 fixedly connected to the steel tube 1, a receiving groove is provided at the top of the positioning rod 4, the upper end of the positioning rod 4 is slidably sleeved in the positioning hole 5, and the steel mesh 2 is provided with a positioning hole 5 corresponding to the positioning rod 4;

[0025] A guide slot 6 is provided on the positioning rod 4, and the guide slot 6 is provided on the inner walls of both sides of the storage slot. A welded guide plate 7 and a spring 8 are provided in the guide slot 6. The guide plate 7 is slidably mounted in the guide slot 6. The guide slot 6 can be used to guide and limit the guide plate 7. The guide plate 7 is guided and limited by the guide slot 6. The guide plate 7 ensures the stability of the guide plate 7 when it moves under the guiding and limiting action of the guide slot 6. The spring 8 is welded to the inner end position of the guide slot 6, and through the elastic force of the spring 8, it can ensure that the guide plate 7 can be reset when it is not pulled;

[0026] A resistance rod 9 is fixedly connected to the guide plate 7, and the outer end of the resistance rod 9 is a spherical structure. The end of the resistance rod 9 connected to the guide plate 7 is a rectangular column structure. When the resistance rod 9 is located above the steel mesh 2, the resistance rod 9 extends to the outside of the positioning hole 5, thereby ensuring that the positioning rod 4 will not separate from the positioning hole 5 without external force, which helps to improve the stability of the steel tube 1 and the steel mesh 2 after welding.

[0027] The functional principle of the utility model can be explained through the following operation modes:

[0028] The positioning rod 4 is placed in the positioning hole 5 by making the steel tube 1 correspond to the center of the steel mesh 2, and the resistance rod 9 is squeezed by the positioning hole 5. The resistance rod 9 moves inward to drive the guide plate 7 to move in the guide slot 6, squeezing the spring 8. When the resistance rod 9 moves out of the positioning hole 5, the guide plate 7 is reset under the elastic force of the spring 8, and the guide plate 7 drives the resistance rod 9 to reset;

[0029] After the resistance rod 9 is reset, the staff performs welding operation to complete the connection between the steel tube 1 and the steel mesh 2, and winds the dense mesh 3 around the outside of the steel tube 1.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casing type anchor hole protection device, comprising a steel bar casing (1), characterized in that: A steel mesh sheet (2) is welded to the steel tube (1), and a dense-mesh steel wire mesh (3) is wound around the outside of the steel tube (1); A positioning mechanism for quickly positioning the steel bar cylinder (1) and the steel bar mesh (2) is provided between the steel bar cylinder (1) and the steel bar mesh (2).

2. A casing type anchor hole protection device according to claim 1, characterized in that: The steel bar cylinder (1) is a cylindrical structure, the steel bar mesh (2) is a square structure, and the steel bar mesh (2) corresponds to the center of the steel bar cylinder (1).

3. A casing type anchor hole protection device according to claim 1, characterized in that: The positioning mechanism comprises a positioning rod (4) fixedly connected to the steel bar cylinder (1); a positioning hole (5) corresponding to the positioning rod (4) is provided on the steel bar mesh (2); a guide slot (6) is provided on the positioning rod (4); a guide plate (7) and a spring (8) welded to each other are provided in the guide slot (6); and a resisting rod (9) is fixedly connected to the guide plate (7).

4. A casing type anchor hole protection device according to claim 3, characterized in that: A receiving groove is provided at the top end of the positioning rod (4), and the upper end of the positioning rod (4) is slidably sleeved in the positioning hole (5).

5. A casing type anchor hole protection device according to claim 4, characterized in that: The guide slots (6) are formed on the inner walls of both sides of the receiving slot, the guide plates (7) are slidably mounted in the guide slots (6), and the springs (8) are welded to the inner ends of the guide slots (6).

6. A casing type anchor hole protection device according to claim 3, characterized in that: The outer end of the abutment rod (9) is a spherical structure, and the end of the abutment rod (9) connected to the guide plate (7) is a rectangular column structure.

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