Auxetic fast hole sealer

Abstract

The invention provides a pulling expansion type fast hole packer, which can improve the hole packing effect and solve the difficult problem that the hole packer easily loses effectiveness in the prior art. The adopted technical scheme is that the pulling expansion type fast hole packer comprises a pull rod device and an expansion barrel device, the pull rod device comprises a pulling expansion rod and a pressure maintaining barrel, the outer diameter of a cup body at the jointed root part of the pressure maintaining barrel and the pulling expansion rod is smaller than the outer diameter of the tail end of the pressure maintaining barrel, an anti-skid ring is arranged on the pressure maintaining barrel, the jointed root part of the pressure maintaining barrel and the pulling expansion rod is provided with a compression bulge, a hole retreating block is limited between the pressure maintaining barrel and a C-shaped clamping groove by a C-shaped card on the C-shaped clamping groove arranged on the pulling expansion rod, an expansion barrel of the expansion barrel device is of a circular cone barrel-shaped structure, the barrel wall of one end with a large barrel diameter is thicker than the barrel wall with a small barrel diameter, and the end face of one end, with a smaller outside diameter, of the expansion barrel is provided with a compression groove matched with the compression bulge. The pulling expansion type fast hole packer is simple in stretching action, higher in safety and convenient to detach, and when the pulling expansion type fast hole packer is reused, only pulling expansion rod is pressed towards the inner hole, and the hole retreating hole pushes a sealing sleeve compression station for enabling the expansion barrel to be reset and retreated.

Description

technical field [0001] The invention relates to a hole sealing technology widely used in industrial and mining enterprises, railways, tunnels, etc., in particular to an auxetic fast hole sealing device designed for sealing holes with a large diameter range and suitable for high and low pressure holes. Background technique [0002] At present, in industrial and mining enterprises, railways, tunnels and other fields, holes need to be blocked for water exploration, waterproofing, water stop, gas drainage, water injection in exploration layers, etc. At present, there are shallow hole insertion type, deep hole insertion type and self-expanding type , Pneumatic type, water expansion type and other sealing methods, no matter which method is used to expand the hole with other media, it is very inconvenient to use other equipment to cooperate with the sealing, or to use the inverted teeth of the tapered port to seal the hole. The pressure is small, the sealing effect is poor, and it ...

AI Technical Summary

Problems solved by technology

[0002] At present, in industrial and mining enterprises, railways, tunnels and other fields, holes need to be blocked for water exploration, waterproofing, water stop, gas drainage, water injection in exploration layers, etc. At present, there are shallow hole insertion type, deep hole insertion type and self-expanding type , Pneumatic type, water expansion type and other sealing methods, no matter which method is used to expand the hole with other media, it is very inconvenient to use other equipment to cooperate with the sealing, or to use the inverted teeth of the tapered port to seal the hole. The pressure is small, the sealing effect is poor, and it is easy to fail, or the method of chemical reaction expansion is used for sealing, which requires other equipment to support the operation.

Water, steam and other media are used to pressurize and seal the structure. The medium is easy to release pressure and fail. Once the pressure is released or the pressure in the hole increases, it will bring a certain threat to safety.

In addition, in the actual work, the drill bit has a certain swing when drilling, and the surface friction between the surface of the sealing device and the hole is used to seal the hole. The actual drilling holes are all elliptical holes, and the ports are large, and the holes The small tapered hole inside is more likely to cause the hole sealing device to fall off and fail to cause an accident

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