CN215565967U

CN215565967U - Split-level reducing duct piece capable of being assembled

Info

Publication number: CN215565967U
Application number: CN202122412575.2U
Authority: CN
Inventors: 秦鹏翔; 李建斌; 李超毅
Original assignee: Qin Pengxiang
Current assignee: Qin Pengxiang
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-01-18
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses an assembled layered reducing duct piece, which comprises a plurality of duct pieces lined from inside to outside, wherein a groove is formed in the surface of one side of each duct piece, a protrusion is formed in the surface of the other side of each duct piece, the position of the groove corresponds to the position of the protrusion, the protrusion can be embedded into the groove, and a bolt penetrates through the protrusion and the groove to connect the duct pieces together. The duct piece is made of steel, concrete or reinforced concrete materials. The plurality of segments are of different thicknesses. Preferably, the number of the grooves on each pipe piece is multiple, and the number of the protrusions is the same as that of the grooves. In the implementation process of the utility model, the duct pieces can be selected, namely, the multi-layer duct pieces with variable thickness are adopted, and the corresponding duct pieces can be selected according to the diameter requirement of the tunnel; and the multilayer duct piece can be positioned and fixed by a user conveniently.

Description

Split-level reducing duct piece capable of being assembled

Technical Field

The utility model belongs to the technical field of a lining process of a tunnel, and particularly relates to an assembled layered reducing duct piece.

Background

When the tunnel is excavated, the following problems can exist: firstly, the section of a tunnel changes, one tunnel can change the diameter for many times, and when the duct piece with fixed thickness is adopted, duct pieces with various specifications are needed; secondly, when the tunnel is dug excessively, the duct piece with larger thickness is hopefully adopted to reduce the grouting amount.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the assembled layered reducing duct piece, and the problems in the background art are effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a layering reducing section of jurisdiction that can assemble, includes a plurality of by interior and outer section of jurisdiction of bush in proper order, and all is provided with the recess on a side surface of every section of jurisdiction, and all is provided with the arch on the opposite side surface of every section of jurisdiction, and the position of recess is corresponding with bellied position, and in the arch can be embedded into the recess, the bolt passed arch and recess in order to link together a plurality of sections of jurisdiction.

Preferably, the duct piece is made of steel, concrete or steel-concrete materials.

Preferably, the plurality of segments have different thicknesses.

Preferably, the number of the grooves on each pipe piece is multiple, and the number of the protrusions is the same as that of the grooves.

Preferably, the groove is located on the inner diameter of the pipe piece, the protrusion is located on the outer diameter of the pipe piece, the thread section of the bolt penetrates through the protrusion to extend into the groove, and the thread section of the bolt is connected with a nut in a threaded mode.

Compared with the prior art, the utility model has the beneficial effects that:

1) when the tunnel segment selecting device is used, segments can be selected, namely, a plurality of layers of variable-thickness segments are adopted, and corresponding segments can be selected according to the diameter requirement of the tunnel;

2) when the utility model is implemented, the multilayer duct piece can be conveniently positioned and fixed by a user.

3) When the tunnel duct piece assembling device is implemented, multiple layers of duct pieces can be assembled, and therefore the tunnel duct piece assembling device is suitable for sizes of different tunnels.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

In the figure: 1. a duct piece; 2. a groove; 3. a protrusion; 4. a bolt; 5. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model is given by figures 1-2, the utility model discloses an assembled layered reducing duct piece, which comprises a plurality of duct pieces 1 lined from inside to outside in sequence, wherein the duct pieces 1 are made of steel, concrete or steel-concrete materials, the duct piece layers are formed by the duct pieces 1 lined mutually, a groove 2 is arranged on one side surface of each duct piece 1, a bulge 3 is arranged on the other side surface of each duct piece 1, the position of the groove 2 corresponds to the position of the bulge 3, when the duct pieces 1 are assembled, the groove 2 and the bulge 3 are matched for use, the connected duct pieces 1 can be preliminarily positioned, so that a user can assemble the duct pieces, the bulge 3 can be embedded into the groove 2, and a bolt 4 penetrates through the bulge 3 and the groove 2 to connect the duct pieces 1 together.

The thickness of a plurality of sections of jurisdiction 1 is different, and then convenience of customers adjusts the internal diameter and the external diameter of section of jurisdiction.

The quantity of the grooves 2 on each pipe piece 1 is multiple, and the quantity of the protrusions 3 is the same as that of the grooves 2.

The groove 2 is located on the inner diameter of the pipe piece 1, the protrusion 3 is located on the outer diameter of the pipe piece 1, the thread section of the bolt 4 penetrates through the protrusion 3 and extends into the groove 2, and the thread section of the bolt 4 is connected with the nut 5 in a threaded mode. Bolt 4 uses with the cooperation of nut 5, can convenience of customers fix the section of jurisdiction layer, takes place to drop when avoiding its use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a layering reducing section of jurisdiction that can assemble which characterized in that: including a plurality of from interior to exterior duct pieces (1) of bush in proper order, and all be provided with recess (2) on the side surface of every duct piece (1), and all be provided with arch (3) on the opposite side surface of every duct piece (1), the position of recess (2) is corresponding with the position of arch (3), and in arch (3) can be embedded into recess (2), bolt (4) pass arch (3) and recess (2) in order to link together a plurality of duct pieces (1).

2. The split layered reducing pipe piece according to claim 1, wherein: the duct piece (1) is made of steel, concrete or steel-concrete materials.

3. The split layered reducing pipe piece according to claim 1, wherein: the plurality of segments (1) have different thicknesses.

4. The split layered reducing pipe piece according to claim 1, wherein: every the quantity of recess (2) on section of jurisdiction (1) is a plurality of, and the quantity of arch (3) is the same with the quantity of recess (2).

5. The split layered reducing pipe piece according to claim 1, wherein: recess (2) are located the internal diameter of section of jurisdiction (1), and arch (3) are located the external diameter of section of jurisdiction (1), the screw thread section of bolt (4) passes protruding (3) and stretches into in recess (2), and threaded connection has nut (5) on the screw thread section of bolt (4).