Protection device applied to advanced small guide pipe grouting opening

Abstract

The utility model discloses a protection device applied to an advanced small guide pipe grouting opening, and relates to the technical field of tunnel construction, in particular to the protection device applied to the advanced small guide pipe grouting opening, which comprises a base, and a grouting hole is formed in the middle of the surface of the base. An inner steel ring is welded to the portion, located outside the grouting hole, of one side of the base, the surface of the inner steel ring is sleeved with an advanced small guide pipe, and the surface of the advanced small guide pipe is sleeved with an outer steel ring. When the advanced small guide pipe is used, the advanced small guide pipe is inserted between the inner steel ring and the outer steel ring, so that a port of the advanced small guide pipe is protected through a gap between the two steel rings, the phenomena of edge curling, opening and the like of the port in the process of driving the advanced small guide pipe into a bottom layer, damage to a grouting port and incapability of smoothly performing subsequent grouting work are avoided, and meanwhile, the service life of the advanced small guide pipe is prolonged. The base and the advanced small guide pipe are connected through the rubber hose, and then the stainless steel hose clamp is used for clamping, so that equipment is firmly connected, does not fall off and is easy to disassemble.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically a protective device for the grouting port of an advanced small guide pipe. Background Technology

[0002] In the construction of metal and non-metal mines, tunnels, and other projects, when encountering adverse geological conditions such as weak, broken, and loose surrounding rock or areas rich in groundwater, the use of advanced small guide pipes to consolidate the strata is a common construction method.

[0003] However, in actual operation, the small guide pipe often curls or breaks due to uneven stress during the process of being driven into the formation, which damages the grouting port and makes it impossible to carry out subsequent grouting work smoothly. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for the grouting port of a pre-drilled small guide pipe. By setting a base, an inner steel ring, an outer steel ring, and a rubber hose, it solves the problem that in actual operation, uneven force often occurs during the driving of small guide pipes into the formation, resulting in phenomena such as edge curling and gaps, which damage the grouting port and prevent subsequent grouting work from proceeding smoothly.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a protective device for the grouting port of an advanced small guide tube, comprising a base, a grouting hole being provided in the middle of the surface of the base, an inner steel ring being welded to one side of the base outside the grouting hole, an advanced small guide tube being sleeved on the surface of the inner steel ring, and an outer steel ring being sleeved on the surface of the advanced small guide tube.

[0006] Preferably, one end of the outer steel ring is welded to one side of the base, and the advanced small conduit is inserted between the inner steel ring and the outer steel ring.

[0007] Preferably, a rubber hose is fitted onto the surface of the outer steel ring, and a stainless steel hose clamp is fitted onto the surface of the rubber hose.

[0008] Preferably, the other end of the rubber hose is sleeved on the surface of the advanced small conduit, and the outer steel ring is fixed between the rubber hose and the advanced small conduit.

[0009] Preferably, the base has a diameter of 100mm, a thickness of 20mm, an outer steel ring with a diameter of 51mm, and a length of 100mm.

[0010] Preferably, the diameter of the inner steel ring is 32mm, and the length of the inner steel ring is 20mm.

[0011] This utility model provides a protective device for the grouting port of an advanced small guide pipe, which has the following features:

[0012] Beneficial effects:

[0013] During use, the pre-guide tube is inserted between the inner and outer steel rings. The gap between the two steel rings protects the end of the pre-guide tube, preventing edge curling, gaps, or other defects from occurring during the grouting process. This would damage the grouting port and hinder subsequent grouting operations. Simultaneously, a rubber hose connects the base to the pre-guide tube, and a stainless steel hose clamp is used for tightening, ensuring a secure and easy-to-disassemble connection between the equipment. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the base of this utility model;

[0017] Figure 3 This is a structural disassembly diagram of the rubber hose of this utility model.

[0018] The image shows:

[0019] 1. Base; 2. Grouting hole; 3. Inner steel ring; 4. Leading small guide tube; 5. Outer steel ring; 6. Rubber hose; 7. Stainless steel hose clamp. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment proposes a protective device for the grouting port of the advanced small guide tube, including a base 1, a grouting hole 2 is opened in the middle of the surface of the base 1, an inner steel ring 3 is welded to one side of the base 1 outside the grouting hole 2, an advanced small guide tube 4 is sleeved on the surface of the inner steel ring 3, and an outer steel ring 5 is sleeved on the surface of the advanced small guide tube 4.

[0023] By setting the base 1, the port of the advanced small guide tube 4 is protected when it is driven into the formation, reducing the possibility of deformation and damage. The inner steel ring 3 and the outer steel ring 5 reduce the possibility of the advanced small guide tube 4 deforming inward or outward.

[0024] One end of the outer steel ring 5 is welded to one side of the base 1, and the advanced small guide tube 4 is inserted between the inner steel ring 3 and the outer steel ring 5.

[0025] A rubber hose 6 is fitted onto the surface of the outer steel ring 5, and a stainless steel hose clamp 7 is fitted onto the surface of the rubber hose 6. The other end of the rubber hose 6 is fitted onto the surface of the advanced small conduit 4. The outer steel ring 5 is fixed to the advanced small conduit 4 through the rubber hose 6.

[0026] A rubber hose 6 with an inner diameter of 51mm is connected to the pre-conduit tube 4 via a stainless steel hose clamp 7 to ensure that the protective device is securely connected and easy to disassemble during the installation of the tube.

[0027] The diameter of the base 1 is 100mm, the thickness of the base 1 is 20mm, the diameter of the outer steel ring 5 is 51mm, and the length of the outer steel ring 5 is 100mm.

[0028] Therefore, the diameter of the inner steel ring 3 is 32mm, and the length of the inner steel ring 3 is 20mm.

[0029] Specifically, the protective device applied to the grouting port of the pre-drilled small guide tube works as follows: When in use, the pre-drilled small guide tube 4 is inserted between the inner steel ring 3 and the outer steel ring 5, thereby protecting the port of the pre-drilled small guide tube 4 through the gap between the two steel rings. This prevents the port from curling, breaking, or other phenomena during the process of driving into the bottom layer, which would damage the grouting port and prevent subsequent grouting work from proceeding smoothly. At the same time, the base 1 and the pre-drilled small guide tube 4 are connected by a rubber hose 6, and then tightened with a stainless steel hose clamp 7, so that the connection between the equipment is firm and does not fall off and is easy to disassemble.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protection device applied to the advanced small catheter grouting port, comprising a base (1), characterized in that: A grouting hole (2) is provided in the middle of the surface of the base (1). An inner steel ring (3) is welded to one side of the base (1) outside the grouting hole (2). A small guide tube (4) is sleeved on the surface of the inner steel ring (3). An outer steel ring (5) is sleeved on the surface of the small guide tube (4).

2. The protection device applied to the advanced small catheter grouting port according to claim 1, characterized in that: One end of the outer steel ring (5) is welded to one side of the base (1), and the advanced small conduit (4) is inserted between the inner steel ring (3) and the outer steel ring (5).

3. The protection device applied to the advanced small catheter grouting port according to claim 1, characterized in that: A rubber hose (6) is fitted onto the surface of the outer steel ring (5), and a stainless steel hose clamp (7) is fitted onto the surface of the rubber hose (6).

4. The protection device applied to the advanced small catheter grouting port according to claim 3, characterized in that: The other end of the rubber hose (6) is sleeved on the surface of the advanced small conduit (4), and the outer steel ring (5) is fixed between the rubber hose (6) and the advanced small conduit (4).

5. The protection device applied to the advanced small catheter grouting port according to claim 1, characterized in that: The base (1) has a diameter of 100mm, a thickness of 20mm, an outer steel ring (5) has a diameter of 51mm, and a length of 100mm.

6. The protection device applied to the advanced small catheter grouting port according to claim 1, characterized in that: Therefore, the diameter of the inner steel ring (3) is 32mm, and the length of the inner steel ring (3) is 20mm.

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