Non-excavation short pipe lining repairing device

Abstract

The utility model relates to the field of trenchless short pipe repairing technology, in particular to a trenchless short pipe lining repairing device. The device comprises a plugging air bag, the peripheral walls of the front end and the rear end of the plugging air bag are fixedly sleeved with connecting lantern rings, elastic film cloth is fixedly arranged between the two connecting lantern rings, inflation pipes are arranged on the two connecting lantern rings in a penetrating mode, the air outlet ends of the inflation pipes are arranged in elastic films, and the air inlet ends of the inflation pipes are arranged on the outer sides of the connecting lantern rings. The utility model aims to provide a trenchless short pipe lining repairing device which solves the problem that a gap exists between a repairing material and the inner wall of a pipeline under the condition that the pipeline is staggered and displaced and the pipeline is bent inwards due to the fact that a plugging air bag is made of a hard material.

Description

Technical Field

[0001] The utility model relates to a trenchless short pipe repair technology and particularly to a trenchless short pipe lining repair device. Background Art

[0002] Drainage pipes are the "lifeline" of a city, and they bear the heavy responsibility of urban sewage discharge, collection and transportation. At present, there are many types of domestic non-excavation pipeline repair technologies, including UV curing lining repair technology, grouting plugging and reinforcement technology, centrifugal spraying pipeline repair technology, thermoplastic forming lining repair technology, local repair technology and stainless steel quick lock local repair technology, which are widely used and mature technologies in China. Among them, the local resin repair process is a process for repairing pipeline defects and leakage locations for local damage in the pipeline. Compared with the UV curing lining repair technology, the local repair cost is low and the operation is convenient.

[0003] The repair airbag wrapped with repair material is dragged into the pipeline, and the repair airbag is inflated to make the repair material fit with the inner wall of the pipeline for local repair. However, when the pipeline is damaged, the pipeline may bend inward at the broken part of the pipeline, and the pipelines may be displaced. The existing plugging airbag body is made of hard material, and after inflation, the repair material cannot fit with the inner wall of the pipeline in the above situation. There is a gap at the bent and displaced parts of the pipeline, which affects the effect of pipeline repair. If the plugging airbag is forcibly inflated continuously, not only will the repair material fail to fit with the inner wall of the pipeline, but it may also cause further damage to the damaged pipeline.

[0004] Therefore, how to design a trenchless short pipe lining repair device that can solve the above-mentioned technical problems is a technical problem that needs to be solved. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a trenchless short pipe lining repair device, which solves the problem that the sealing airbag material is relatively hard, and there is a gap between the repair material and the inner wall of the pipe when the pipe is displaced or bent inward.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a blocking airbag, the outer peripheral walls at the front and rear ends of the blocking airbag are fixedly sleeved with connecting rings, an elastic membrane cloth is fixed between the two connecting rings, and an inflation tube is passed through the two connecting rings, the air outlet end of the inflation tube is arranged in the elastic membrane, and the air inlet end is arranged on the outside of the connecting ring.

[0007] Furthermore, universal wheels are provided on the bottom surfaces of the front and rear ends of the blocking airbag.

[0008] Furthermore, the inflation tube is provided with a valve for conducting the air inflation tube.

[0009] Furthermore, an air inlet pipe for inflating the blocking airbag is provided at one end of the blocking airbag.

[0010] The utility model has the following beneficial effects:

[0011] 1- The utility model provides connecting rings at both ends of the plugging airbag, and an elastic membrane between the two connecting rings. When the plugging airbag is initially inflated, the repair material is lifted up to contact the leakage point of the pipeline. At this time, air is inflated into the elastic membrane, so that the parts of the two ends of the repair material away from the leakage point of the pipeline are in contact with the inner wall of the pipeline under the action of the expansion of the elastic membrane, so that the repair material can be more closely attached to the inner wall of the pipeline, thereby enhancing the repair efficiency and reducing the possibility of gaps between the repair material and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the use status of the utility model Figure 1 ;

[0015] Figure 4 For this utility model Figure 3 A partial enlarged schematic diagram in the middle;

[0016] Figure 5 This is a schematic diagram of the use status of the utility model Figure 2 .

[0017] Description of reference numerals:

[0018] 1-blocking airbag, 11-connecting ring, 111-inflating tube, 112-valve, 12-elastic membrane, 13-universal wheel, 14-intake pipe;

[0019] 2- Pipeline;

[0020] 3- Restoration materials. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] See also Figure 1-5 As shown, the scheme includes a blocking airbag 1, and a connecting ring 11 is fixedly sleeved on the outer peripheral wall at the front and rear ends of the blocking airbag 1, an elastic membrane 12 is fixedly arranged between the two connecting rings 11, and an inflation tube 111 is penetrated through the two connecting rings 11, and the air outlet end of the inflation tube 111 is arranged in the elastic membrane 12, and the air inlet end is arranged outside the connecting ring 11.

[0023] Universal wheels 13 are provided on the bottom surfaces of the front and rear ends of the blocking airbag 1 to facilitate the movement of the blocking airbag 1 in the pipeline 2.

[0024] Furthermore, the inflation tube 111 is provided with a valve 112 for conducting the air inflation tube 111 .

[0025] The elastic membrane 12 is made of reinforced fiber or polyester materials such as rubber, aluminum film, latex, plastic, Oxford cloth, PVC, etc. The elastic membrane 12 is made of existing hot air balloon skin materials, which has high strength and high elasticity.

[0026] Furthermore, an air inlet pipe 14 for inflating the blocking airbag 1 is provided at one end of the blocking airbag 1 .

[0027] The working principle is roughly as follows:

[0028] The repair material 3 (epoxy resin) is arranged around the outer peripheral wall of the plugging airbag 1, and the plugging airbag 1 is pushed into the pipeline 2 so that the repair material 3 is aligned with the leakage point of the pipeline 2, and the plugging airbag 1 is inflated through the air inlet pipe 14 to heat it; Figure 3 As shown, the repair material 3 contacts the leakage point, and there is a gap between the two ends of the repair material 3 and the inner wall of the pipe 2. Then, air is inflated into the elastic membrane 12 through the inflation tube 111, and the elastic membrane 12 is further inflated and expanded by heating, as shown in FIG. Figure 5 As shown, the elastic membrane 12 is relatively soft and can lift up the parts of the two ends of the repair material 3 away from the inner wall of the pipe 2 and contact the inner wall of the pipe 2 after inflation; after heating, the repair material 3 tightly adheres to the leakage point to complete the repair.

[0029] The above description is only a specific implementation method of the utility model, and does not limit the patent scope of the utility model. Any equivalent structural transformation made using the contents of the utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A trenchless short pipe lining repair device, characterized in that: The invention comprises a blocking airbag (1), wherein the outer peripheral walls at the front and rear ends of the blocking airbag (1) are fixedly sleeved with connecting rings (11), an elastic membrane (12) is fixedly arranged between the two connecting rings (11), and an inflation tube (111) is passed through the two connecting rings (11), the outlet end of the inflation tube (111) is arranged inside the elastic membrane (12), and the inlet end is arranged outside the connecting ring (11).

2. A trenchless short pipe lining repair device according to claim 1, characterized in that: Universal wheels (13) are provided on the bottom surfaces of both the front and rear ends of the blocking airbag (1).

3. A trenchless short pipe lining repair device according to claim 1, characterized in that: The inflation tube (111) is provided with a valve (112) for conducting the air inflation tube (111).

4. The trenchless short pipe lining repair device according to claim 1, characterized in that: An air inlet pipe (14) for inflating the blocking airbag (1) is provided at one end of the blocking airbag (1).

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