CN204235779U - Instrument built by a kind of tunnel-liner model - Google Patents

Abstract

The utility model discloses a kind of tunnel-liner model and build instrument, comprise base, internal mold and external mold, described external mold center is provided with the outer nib of Tunnel-hole shape, and one end of external mold is arranged on base; Described internal mold is arranged in the outer nib of external mold, and leaves tunnel-liner between outer nib and build groove.The utility model structure is simple, easy to operate, the tunnel-liner model of building out be close to Practical Project, thoroughly solve the problem that the comparatively abstract and students of traditional tunnel teaching is not easy to understand, the tunnel-liner model simultaneously obtained can carry out the higher model test of similarity in a large number.

Description

A pouring tool for tunnel lining model

technical field

    The utility model relates to a teaching model, in particular to a pouring tool for a tunnel lining model.

Background technique

    Tunnel engineering is an important subject of civil engineering. Major universities, scientific research institutes and engineering units all have teaching and model experiments for this course. Because there is no good tunnel lining model, the traditional tunnel teaching uses text and illustrations , the teaching is relatively abstract, and it is not easy for students to understand, while the traditional tunnel experiments use models that are quite different from the actual situation, which is quite different from the actual project.

Contents of the invention

 In order to solve the above technical problems, the utility model provides a tunnel lining model pouring tool with simple structure and easy operation, which can solve the problem that the traditional tunnel teaching is relatively abstract and students are not easy to understand, and can perform similarity comparison High model test.

The technical solution adopted by the utility model is: including a base, an inner mold and an outer mold, the center of the outer mold is provided with a tunnel hole-shaped outer mold hole, and one end of the outer mold is installed on the base; the inner mold is installed In the outer mold hole of the outer mold, there is a tunnel lining pouring groove between the outer mold hole and the outer mold hole.

In the above tunnel lining model pouring tool, the outer mold is in the shape of a cuboid, and the outer mold includes two outer formworks, grooves are respectively provided on the opposite surfaces of the two outer formworks, and the two outer formworks are butted together through the fixing clips on the outside. The grooves of the two outer templates form an outer mold hole in the shape of a tunnel hole.

In the above-mentioned tunnel lining model casting tool, the inner mold includes four inner formworks and inner mold cores, the inner mold cores are trapezoidal prism structures in section, and the four inner formworks are respectively installed on the four inner mold cores. on one side.

In the above-mentioned tunnel lining model casting tool, the bottom surface of the inner formwork facing away from the base is provided with a through hole which is inclined and communicates with the contact surface of the inner formwork and the inner mold core. fixed on the inner mold core.

In the above tunnel lining model pouring tool, grooves are arranged on the bottom surface of the inner mold facing the base, and core-taking iron wires are installed in the grooves.

In the above tunnel lining model pouring tool, the base is provided with grooves in the cross-sectional shape of the inner mold and four cuboid-shaped fixing rods, and the four fixing rods are located on the outside of the side wall of the outer mold.

Compared with the prior art, the beneficial effects of the utility model are:

1) The utility model has a simple structure and is easy to operate.

2) The positioning of each component of the utility model is accurate to ensure the shape of the poured mold is stable; the inner mold of the utility model includes four templates and a mold core, and the outer mold includes two templates to facilitate demoulding; the utility model inner mold All the connections are tangent to the arcs and curves, the transition is smooth, and the model will not produce obvious unevenness.

3) The tunnel lining model cast by the utility model is close to the actual project, which completely solves the problem that the traditional tunnel teaching is relatively abstract and the students are not easy to understand. test.

Description of drawings

    Fig. 1 is a perspective view of the structure of the utility model.

Fig. 2 is a top view of the utility model.

Figure 3 is a bottom view of the inner mold of the present utility model.

Figure 4 is a top view of the base of the utility model.

Detailed ways

    Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 and 2, the utility model includes an outer mold 1, an inner mold 2, a fixing clip 3 and a base 4. The outer mold 1 is in a cuboid shape, and the outer mold 1 includes two outer templates, which are opposite to each other. Grooves are respectively arranged on the surfaces of the two outer templates, and the two outer templates are butted together through the fixing clip 3 on the outside, and the grooves of the two outer templates form an outer mold hole 11 in the shape of a tunnel hole. The outer mold 1 is installed on the base, and one end of the outer mold 1 facing away from the base 4 is provided with a pull rod 12, through which the mold can be moved or two outer templates can be separated.

The inner mold 2 is installed in the outer mold hole 11, and a tunnel lining pouring groove 5 is left between the inner mold 2 and the outer mold 1. The inner mold 2 includes four inner templates and an inner mold core 21, the inner mold core 21 is a trapezoidal prism structure in section, and the four inner templates are installed on four sides of the inner mold core 21 respectively. The bottom surfaces of the four inner templates facing away from the base are respectively provided with obliquely arranged through holes that communicate with the contact surface of the inner template and the inner mold core 21, and the fixed iron pin 6 passes through the through holes to fix the inner template to the inner mold. Core 21 on. As shown in Figure 3, the inner mold core 21 is provided with a groove towards the bottom surface of the base 4, and a core iron wire 22 is installed in the groove. When demoulding, the inner mold core can be taken out by the core iron wire 22 thereon.

As shown in Figure 4, described base 4 is provided with the groove 41 of internal mold section shape and with four cuboid fixed rods 42, and one end of described outer mold 1 is fixedly installed on the base 4, and four fixed rods 42 is located on the outside of the side wall of the outer mold 1 . The fixed rod 42 is positioned on the outer mold 1, and the groove 41 is positioned on the inner mold 2.

The specific implementation process of the utility model is: when pouring, pour the viscous model stock solution in the pouring tank 5 . Pull out the iron tip 6 after the pouring body is solidified, remove the base 4, and pull out the core through the core wire 22 . Knock the four inner templates to the original inner mold core 21 in turn to separate them from the cast body. Take off the fixing clip 3, and separate the two outer formworks through the pull rod 12, so that the pouring body and the outer formwork 1 are separated.

Claims (6)

1. an instrument built by tunnel-liner model, it is characterized in that: comprise base, internal mold and external mold, and described external mold center is provided with the outer nib of Tunnel-hole shape, and one end of external mold is arranged on base; Described internal mold is arranged in the outer nib of external mold, and leaves tunnel tunnel-liner between outer nib and build groove.

2. instrument built by tunnel-liner model according to claim 1, it is characterized in that: described external mold is cuboid, external mold comprises two exterior sheathings, the face that two exterior sheathings are relative is respectively equipped with groove, two exterior sheathings are docking together by the geometrical clamp in outside, the outer nib of the groove composition Tunnel-hole shape of two exterior sheathings.

3. instrument built by tunnel-liner model according to claim 1, it is characterized in that: described internal mold comprises four blocks of inner formwords and inner mould core, inner mould core is cross section is trapezoidal prism structure, and four blocks of described inner formwords are arranged on four sides of inner mould core respectively.

4. instrument built by tunnel-liner model according to claim 3, it is characterized in that: the bottom surface of described inner formword base is dorsad provided with and is obliquely installed, be communicated with the through hole of inner formword and inner mould core contact surface, inner formword is fixed on inner mould core through this through hole by the fixing iron tip.

5. instrument built by tunnel-liner model according to claim 4, it is characterized in that: the bottom surface towards base of internal mold is provided with groove, is provided with and gets core iron silk in groove.

6. instrument built by the tunnel-liner model according to claim arbitrary in claim 1-5, it is characterized in that: base is provided with the groove of internal mold cross sectional shape and the hold-down bars with four cuboids, and four hold-down bars are positioned at the outside of external mold sidewall.