CN204167851U - Cable inflatable pipeline sealing device - Google Patents

Abstract

The utility model discloses an inflatable cable duct sealing device, which is characterized in that an inflatable sealing belt is provided, and the inflatable sealing belt is formed into a closed flat shape by a hollow belt, and is compounded on the surface of the inflatable sealing belt. There is a waterproof film forming an integral structure with the sealing tape, and an inflation port and an inflation tube connected with the inflation port are provided at one end of the inflatable sealing tape, and an inflation check valve is arranged in the inflation port. The utility model adopts the flexible sealing technology, and solves all the problems existing in the existing cable duct in one piece. By applying the "inflatable cable duct sealing device", it will not cause physical damage to the pipeline, and only needs to be re-sealed with an inflatable cable sealing tape. Just block it.

Description

Inflatable Cable Duct Seals

Technical field:

The utility model relates to an inflatable cable duct sealing device.

Background technique:

The 18th National Congress of the Communist Party of China clearly put forward a road map for building a beautiful China and realizing the "Chinese Dream". Actively promoting urbanization has become one of the main paths for my country's economic and social development in the next few years. It is expected that in the next three to five years, with the rapid advancement of the urbanization strategy nationwide, a large number of old city renovations and new city construction will be carried out in various regions, and the demand for cables will increase rapidly. It is very important to protect the cables. The existing technology is to use cement and other materials to block the cable ducts. The disadvantage of this method is that the material and the ducts will lose their waterproof effect due to thermal expansion and contraction. It will destroy the seal of the pipeline and need to be resealed; moreover, because the pipeline has been fixed and blocked and needs to be restored, the entire pipeline may be destroyed, which is inconvenient for future cable expansion.

This utility model technology uses flexible sealing technology to solve all the above-mentioned series of problems. By applying the "inflatable cable duct sealing system", it will not cause physical damage to the pipeline, and it only needs to be re-sealed with an inflatable cable sealing tape. Can.

Invention content:

In order to overcome the defects of the prior art, the purpose of this utility model is to provide an inflatable cable duct sealing device, which adopts flexible sealing technology to solve all the above-mentioned series of problems in one piece. By applying the "inflatable cable duct sealing device", it does not Will cause physical damage to the conduit, simply re-seal with inflatable cable glands.

The utility model solves the technical problem and adopts the following technical solutions:

Inflatable cable duct seals:

An inflatable sealing tape is provided, and the inflatable sealing tape is formed into a closed flat body by a hollow belt, and a waterproof film forming an integral structure with the sealing tape is compounded on the surface of the inflatable sealing tape, and the inflatable sealing tape One end of the sealing belt is provided with an inflation port and an inflation tube connected with the inflation port, and an inflation check valve is arranged in the inflation port.

A method for sealing a cable duct by using the above-mentioned sealing device is carried out in the following steps:

1) Clean the inner surface of the cable duct;

2), tear off the protective paper on the outside of the inflatable sealing tape, if the pipe to be sealed is a polyethylene pipe, lubricate the inner wall of the pipe with lubricant;

3) Roll up the inflatable sealing tape of the flat shape, and send the rolled sealing tape into the cable. Push and slide into the pipeline in the form of a roll until the whole roll of sealing tape is completely released into a flat shape;

4), connect the inflatable tube to the inflatable device and communicate with the air source;

5) Inflate the inner cavity of the sealing tape until the air pressure in the sealing tape reaches 3.5Mpa, keep the pressure in the sealing tape at this value for no less than 30 seconds, unplug the inflation tube, and the cable duct is sealed.

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

(1) The installation is convenient and fast, and the cable can be protected as soon as the cable enters the pipeline;

(2) Empty pipes and multiple cables can be applied;

(3) It is easy to dismantle without damaging cables and pipes;

(4) Applicable to PVC, PE, C-PVC, iron, steel pipe and various pipes;

(5) Resistant to harsh environments (salt, bacteria, termite-like chemical corrosive substances);

(6) The service life is more than 30 years.

Description of drawings:

Fig. 1 is a schematic structural diagram of the expanded state of the sealing tape of the utility model; Fig. 2 is a schematic cross-sectional view of the sealing tape after it is inflated.

Labels in the figure: 1 inflatable sealing tape, 2 waterproof film, 3 inflation port, 4 inflation tube.

The utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

Detailed ways:

Embodiment: an inflatable sealing tape 1 is provided, the inflatable sealing tape forms a closed flat body by a hollow tape, and a waterproof film 2 forming an integral structure with the sealing tape is compounded on the surface of the inflatable sealing tape, and One end of the inflatable sealing belt is provided with an inflation port 3 and an inflation tube 4 communicating with the inflation port. An inflation check valve is arranged in the inflation port 3. Generally, the inflation structure is similar to a swimming ring or the like inflatable port. In the specific implementation, the sealing tape adopts an inflatable sealing tape composed of soft metal and multi-layer polymer materials to ensure that the plugging part is in a completely water-sealed state, preventing sewage, sundries, and small animals from entering the pipeline, thereby achieving the protective effect. The device is applied to both ends of a complete section of pipeline (this section of pipeline has no other joints). By installing the inflatable cable sealing tape at both ends of the pipeline, the cables in the pipeline are fully protected.

The sealing method of the cable duct using the above-mentioned sealing device is carried out according to the following steps:

1) To clean the inner surface of the cable duct, it is recommended to clean it with a damp cloth;

2), tear off the protective paper on the outside of the inflatable sealing tape, if the pipe to be sealed is a polyethylene pipe, lubricate the inner wall of the pipe with lubricant;

3), roll up the inflatable sealing tape of the flat shape (the sealing tape is about 100 cm long and 10 cm wide, the length and width of the sealing tape are determined according to the actual situation of the specific pipeline, the so-called width and diameter after inflation), and Feed the rolled sealing tape into the cable, the end of the sealing tape with the inflation port facing the mouth of the pipe, push and slide the rolled sealing tape into the pipe in the form of unwinding along the cable until the whole roll of sealing tape is completely released It is in a flat shape; if there are two cables in the pipeline, the inflatable belt should also be unwound and pushed along the cable, but the sealing belt needs to be extended into the pipeline along the cable with a larger diameter;

4), connect the inflatable tube to the inflatable device and communicate with the air source;

5) Inflate the inner cavity of the sealing tape until the air pressure in the sealing tape reaches 3.5Mpa, keep the pressure in the sealing tape at this value for no less than 30 seconds, unplug the inflation tube, and the cable duct is sealed.

If the cable needs to be repaired, the removal method and steps of the sealing tape are as follows:

Pierce the sealing tape with a screwdriver to make the gas in the sealing tape leak light, and continue to separate the sealing tape from the cable duct wall with a screwdriver;

Remove the sealing tape from the pipe with pliers;

After the dismantling is complete, please refer to the above sealing method and steps for the steps of resealing.

The benefits achieved by using the device and method of the utility model to seal the cable duct are shown in the following table:

Claims (1)

1. Inflatable cable duct sealing device, characterized in that: An inflatable sealing tape (1) is provided, the inflatable sealing tape forms a closed flat body by a hollow tape, and a waterproof film (2) forming an integral structure with the sealing tape is compounded on the surface of the inflatable sealing tape, And one end of the inflatable sealing belt is provided with an inflation port (3) and an inflation tube (4) communicating with the inflation port, and an inflation check valve is arranged in the inflation port (3).