CN201330889Y - Waterproofing device for pipeline crossing - Google Patents

Abstract

The utility model relates to a waterproof device for tunnels, in particular to a waterproof device for pipeline crossing. The device has a waterproof layer reinforcement layer, an elastic gasket and a tightening hoop device. The elastic gasket is covered on the surface of the outer wall of the pipeline, and the waterproof The reinforcing layer of the layer is columnar, and one end is provided with a flange, wherein the flange is joined with the all-encompassing waterproof layer, and the columnar part of the reinforcing layer of the waterproof layer is set on the elastic gasket, and the elastic gasket is fixed by at least two tightening devices. The gasket, the columnar part of the waterproof layer reinforcement layer and the pipe are compressed and fixed. With this device, the water pressure resistance of the joint between the pipe and the all-inclusive waterproof layer can reach 0.9MPa, making its waterproof performance safe and reliable.

Description

Waterproofing for pipeline crossings

technical field

The utility model relates to a waterproof device for a tunnel, in particular to a waterproof device where a pipeline passes through an all-enclosed waterproof layer.

Background technique

At present, in the prior art, for pipelines passing through the all-enclosed waterproof layer of the tunnel structure, it is generally used to pour sealant at the joints of the two to meet the waterproof requirements. The advantage of pouring sealant is simple operation and low cost. However, the sealant structure cannot withstand high water pressure, and is not suitable for geological environments with high water pressure. In addition, the sealant and the waterproof layer, and between the sealant and the pipeline may have virtual adhesion, thereby affecting the overall waterproof effect of the tunnel or connecting passage.

Contents of the invention

The purpose of this utility model is to provide a waterproof device for pipeline crossing according to the deficiencies of the above-mentioned prior art. performance.

The utility model goal is realized by the following technical solutions:

A waterproof device for pipeline crossing, comprising an all-inclusive waterproof layer structure and a pipeline passing through the all-inclusive waterproof layer structure, characterized in that: the device has a waterproof layer reinforcement layer, an elastic gasket and a tightening hoop device, and the elastic pad The sheet is covered on the surface of the outer wall of the pipeline. The reinforced layer of the waterproof layer is columnar, and a flange is provided at one end, wherein the flange is joined to the all-enclosed waterproof layer. The columnar part of the reinforced layer of the waterproof layer is set on the elastic gasket On the top, the elastic gasket, the columnar part of the reinforcement layer of the waterproof layer and the pipe are compressed and fixed by at least two tightening devices.

The elastic gasket is an unvulcanized butyl rubber sheet.

The number of said tightening devices is two.

A waterproof device for pipelines passing through the all-enclosed waterproof layer, characterized in that the tightening device is a steel hoop.

The all-inclusive waterproof layer and the reinforced layer of the waterproof layer are made of the same material.

The flange part of the reinforced layer of the waterproof layer is connected with the all-encompassing waterproof layer by welding.

The utility model has the advantage that through the device, the water pressure resistance of the joint between the pipeline and the all-inclusive waterproof layer can reach 0.9 MPa, so that the waterproof performance is safe and reliable.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the section structure of the utility model embodiment;

Accompanying drawing 2 is the utility model embodiment waterproof layer reinforced layer structure diagram;

Accompanying drawing 3 is the schematic diagram of the structure of the elastic gasket of the utility model embodiment;

Accompanying drawing 4 is the three-dimensional structure schematic diagram of the utility model embodiment.

Detailed ways

The features of the utility model and other relevant features are further described in detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figures 1-4, the labels 1-9 respectively represent: support layer 1, non-woven buffer layer 2, all-inclusive waterproof layer 3, waterproof layer reinforcement layer 4, pipeline passing through the waterproof layer 5, tightening device 6, The elastic gasket 7, the columnar part 8 of the waterproof layer reinforcement layer, and the flange part 9 of the waterproof layer reinforcement layer.

In this embodiment, the sealing performance of the joint between the waterproof layer 3 and the pipe 5 is improved by adding the waterproof layer reinforcement layer 4, the elastic gasket 7 and the clamping device 6, and the water pressure resistance can reach 0.9 MPa through the above waterproof measures.

As shown in Figure 1 and Figure 4, the pipeline 5 passes through the tunnel structure, the elastic gasket 7 is covered on the outer wall surface of the pipeline 5, and the columnar part 8 of the waterproof layer reinforcement layer 4 is set on the elastic gasket 7, and is passed through two tightening hoops. 6. Compress and fix the elastic gasket 7, the columnar part 8 of the waterproof layer reinforcement layer and the pipe 5.

In this embodiment, the waterproof layer reinforcement layer adopts PVC waterproof board. Obviously, the device can also have a good sealing effect on waterproof layers made of other materials such as ECB.

As shown in Fig. 3, the elastic spacer 7 is a tubular device. The material is a sheet of unvulcanized butyl rubber, which has properties such as elasticity, aging resistance, and strength to meet the required properties.

As shown in FIG. 2 , the reinforcement layer 4 of the waterproof layer is columnar, and a flange is provided at one end thereof. The reinforcement layer 4 is selected from the same material as the all-inclusive waterproof layer.

In this embodiment, the tightening hoop device 6 is two steel hoops, and the number of steel hoops can be increased or decreased according to different geological conditions and pipeline diameters.

Claims (6)

1. A waterproof device for pipeline crossing, comprising an all-inclusive waterproof layer structure and a pipeline passing through the all-inclusive waterproof layer structure, characterized in that: the device has a waterproof layer reinforcement layer, an elastic gasket and a tightening hoop device, the The elastic gasket is covered on the outer wall surface of the pipeline. The reinforced layer of the waterproof layer is columnar and has a flange at one end. On the gasket, the elastic gasket, the columnar part of the reinforcement layer of the waterproof layer and the pipe are compressed and fixed by at least two tightening devices. 2. A waterproof device for pipeline crossing according to claim 1, characterized in that said elastic gasket is an unvulcanized butyl rubber sheet. 3. A waterproof device for pipeline crossing according to claim 1, characterized in that there are two tightening devices. 4. A waterproof device for pipeline crossing according to claim 1 or 3, characterized in that said tightening device is a steel hoop. 5. A waterproof device for pipeline crossing according to claim 1, characterized in that the all-encompassing waterproof layer and the reinforcing layer of the waterproof layer are made of the same material. 6. A waterproof device for pipeline crossing according to claim 1 or 5, characterized in that the flange part of the waterproof layer reinforcement layer is connected to the all-enclosed waterproof layer by welding.

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