CN114960922A

CN114960922A - Multifunctional hollow exhaust air-tight air bag for sewage pipeline

Info

Publication number: CN114960922A
Application number: CN202210710036.3A
Authority: CN
Inventors: 沈柯; 范存良; 刘夏杰
Original assignee: Zhejiang Zhongzheng Pipeline Engineering Co ltd
Current assignee: Zhejiang Zhongzheng Pipeline Engineering Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-30

Abstract

A hollow exhaust air-tight airbag in a multifunctional sewage pipeline is characterized in that an airbag pipe chuck is arranged on the outer diameter surface of a hollow metal pipe, a TPU inner membrane bag (8) is used for sealing and wrapping the airbag pipe chuck, a TPU gasket (10), an air hole joint (12), an air hole nut (13) and a TPU outer membrane bag (14) are arranged in the airbag pipe chuck, the TPU inner membrane bag (8) and the TPU outer membrane bag (14) are welded by using an upper TPU gasket (10) and a lower TPU gasket (10) to form a hollow pipe airbag, and an airbag pipe chuck and a metal pipe sealing cover are arranged at the two ends of the hollow metal pipe to form an underground pipeline blocking and repairing airbag; and a metal pipe ventilation cover is arranged, a ventilation cover pipe orifice (20) is arranged on two metal pipe ventilation covers (19) at the two ends of the hollow metal pipe (1), a blowing and sucking hard pipe is inserted, a blowing and sucking hose is fixed on a hook ring of the metal pipe ventilation cover by a hook ring hook, and efficient ventilation is carried out on the underground pipeline at the two ends of the hollow metal pipe, so that operators in the underground sewage pipeline can not breathe toxic gas, and the cyanide poisoning event of sanitation cleaners during the operation under an inspection well is effectively avoided.

Description

Multifunctional hollow exhaust air-tight air bag for sewage pipeline

Technical Field

The invention relates to the field of municipal engineering sewage pipeline dredging, in particular to a multifunctional sewage pipeline hollow exhaust air-tight air bag.

Background

When an existing municipal engineering underground sewage pipeline is desilted, detected and maintained, a repairing air bag is adopted to block the sewage pipeline, and an aboveground exhaust fan is used for exhausting toxic gas, because inspection wells are different in opening and size, the underground pipeline is communicated on four sides, the process of the toxic gas is slow, and the effect of the toxic gas is not good, so that the environment in the inspection well is severe, and environmental sanitation cleaning workers operate under the inspection well, and a cyanogen sulfide poisoning event is easy to happen.

Disclosure of Invention

The invention adopts the hollow tube sealing air bag technology, and the TPU air bag is arranged on the outer diameter surface of the hollow metal tube; two ends of the hollow metal pipe are provided with metal pipe sealing covers to manufacture the traditional repairing air bag for use; according to the requirement, a metal pipe ventilation cover is arranged at two ends of the hollow metal pipe, after the hollow pipe sealed air bag is formed, the blowing and sucking hard pipe (24) is inserted, the blowing and sucking hose (25) is fixed on a hook ring (16) of the metal pipe ventilation cover through a hook ring hook (26), and efficient ventilation and air exchange are carried out on the underground pipeline at the two ends of the hollow metal pipe (1). Using a blower to operate workers in the underground sewage pipeline between the AB wells at the cleaned well head A and the underground pipeline, and efficiently conveying fresh air on the ground; the exhaust fan can be used for bidirectionally sucking and discharging toxic gas in the sewage pipeline at the well mouth A and the well mouth C at the front end and the rear end of the underground sewage pipeline B, so that operators in the well mouth B and the underground sewage pipeline can not breathe the toxic gas, and the cyanide sulfide poisoning event can be effectively avoided when sanitation cleaners operate under the inspection well.

In order to achieve the purpose, the invention adopts the following scheme: the multifunctional hollow exhaust air-tight seal air bag for the sewage pipeline comprises a hollow metal pipe (1), an air bag pipe clamping head (3), a TPU inner film bag (8), a TPU gasket (10), a TPU outer film bag (14), a metal pipe sealing cover (15), a metal pipe ventilation cover (19) and an air blowing and sucking hard pipe (24), wherein the TPU inner film bag (8) is arranged on the outer diameter of the hollow metal pipe (1) in a sleeved and wrapped manner to achieve the effects of corrosion resistance, oxidation resistance and rust resistance; two ends of a hollow metal pipe (1) are respectively provided with an air bag pipe clamping head (3), a TPU gasket (10) is lined and is used for sealing, connecting and fixing a TPU outer membrane bag (14), the TPU inner membrane bag (8), the TPU gasket (10) and the TPU outer membrane bag (14) are manufactured into a hollow TPU air bag (34), and the hollow TPU air bag and the hollow metal pipe (1) are assembled into a complete hollow pipe sealing air bag (33); two ends of the hollow metal pipe (1) penetrate through the fixed air bag pipe clamping head (3), external threads (2) of the pipe opening are exposed, and two metal pipe sealing covers (15) are arranged to seal the two ends of the hollow metal pipe (1); two metal pipe ventilation covers (19) are arranged and inserted into the blowing and sucking hard pipes (24) to ventilate and ventilate two ends of the hollow metal pipe (1).

The front and the rear air bag pipe chucks (3) are respectively provided with a chuck vent hole (6), a fixed air hole joint (12) penetrates through the chuck vent hole (6) and is fixed by an air hole nut (13), and a roller bolt (7) and a self-sealing air hole (27) are arranged; an L-shaped groove (5) and a clamp corner protecting edge (32) are arranged in the air bag pipe clamp head (3) and used for storing a TPU gasket (10); a sealing pipe sleeve opening (4) is arranged in the air bag pipe clamping head (3); two clamping head concave rings (28) are arranged on the outer diameter of the sealing pipe sleeve opening (4), and after the sealant (22) is brushed, the TPU inner membrane bag (8) is firmly sleeved, sealed and stuck outside the hollow metal pipe (1) by a positioning binding belt (29); a plurality of inner membrane bag strips (9) are arranged at the two ends of the TPU inner membrane bag (8) so as to be convenient to weld and seal with a TPU gasket (10); an air hole sealing washer (11) and a self-sealing air hole (27) are arranged on the TPU gasket (10); a plurality of inner membrane bag strips (9) at two ends of the TPU inner membrane bag (8) and the TPU gasket (10) are mutually pasted and sealed after being brushed with the sealant (22); the diameter of the sealing gasket vent hole (21) is larger than that of the sealing pipe sleeve opening (4), and the diameter of the sealing gasket outer diameter (31) is larger than that of the clamping head corner protection edge (32), so that the TPU inner membrane bag (8) and the TPU outer membrane bag (14) can be welded conveniently.

On the pipe orifice external threads (2) at the two ends of the hollow metal pipe (1), the sealing cover internal threads (17) of a metal pipe sealing cover (15) are respectively used for rotating, fixing and sealing the opening of the hollow metal pipe (1) to form the conventional plugging and repairing air bag, and a hook ring (16) is arranged on the metal pipe sealing cover (15) to facilitate the operation in an underground sewage pipeline; the internal threads (18) of the vent cover of the metal pipe vent cover (19) can be respectively used on the external threads (2) of the pipe orifice at the two ends of the hollow metal pipe (1), the orifice of the hollow metal pipe (1) is rotationally fixed, so that the two ends of the hollow pipe sealing air bag (33) are ventilated, and the conditioned ventilation and air supply of the blocked underground sewage pipeline are ensured; a vent cover pipe orifice (20) is arranged on the metal pipe vent cover (19) to facilitate the insertion of a blowing and sucking hard pipe (24); and a hook ring (16) is arranged. The blowing and sucking hard tube (24) is provided with a blowing and sucking hose (25) and a hanging ring hook (26), so that the blowing and sucking hard tube (24) is conveniently fixed on the metal tube ventilation cover (19).

The scheme shows that the hollow tube sealed air bag (33) is tight in structure, the hollow metal tube (1) and the TPU inner membrane bag (8) are combined in a sealing mode, after being bonded by adopting a brush sealant (22), the TPU inner membrane bag (8) is bound in the clamp head concave ring (28) by using a positioning binding belt (29), a double-sealing fixing effect is achieved, the hollow tube sealed air bag (33) is guaranteed not to fall off and leak air when being pushed and pulled by an underground sewage pipeline, and the field changing and tool operation are easy; the TPU airbag (34) is wear-resistant, has high tensile strength and high expansion coefficient, and the contracted TPU airbag (34) does not deform after being expanded, so that the maintenance cost is low; because the high-elastic wearability of the sealed gasbag of hollow tube (33), can block up A, C two-stage sewage pipes respectively completely with two sealed gasbags of hollow tube (33), it does not have unnecessary space to blow and breathe in hard tube (24) around inserting tubular metal resonator ventilation lid (19), A, C two-stage sewage pipe mouth just can not have the air admission when breathing in, only middle B section sewage pipe well head has fresh air to get into, sewage pipe expellent ventilation effect about can furthest improvement B section well head, guarantee middle B section sewage pipe mouth borehole operation personnel breathe safety, the while has also shortened down-hole operating time.

The invention is suitable for being used in the complex and changeable environment of the sewage pipeline under the inspection well, has multiple functions, light weight, flexibility and changeability, reduces the labor intensity of underground sewage pipeline operators, can block the sewage pipeline by combining the blocking and ventilation if a plurality of hollow pipe sealing air bags (33) are matched and used in different sewage pipeline sections, can also ventilate, ventilate and expel toxin in work, reduces the harm of the severe environment of the underground sewage pipeline to the operators, improves the labor efficiency to the maximum extent, saves labor and time, saves the labor cost and improves the economic benefit.

Drawings

FIG. 1 front view of an air bag for sealing a hollow tube according to an embodiment of the present invention

Figure 2 top view of a clamp of an air bag pipe according to an embodiment of the invention

FIG. 3 diagram of TPU pad structure of this embodiment of the invention

FIG. 4 is a schematic view of a hollow pipe sealing pipe end structure in an embodiment of the present invention

Detailed Description

The invention is further illustrated below with reference to examples and figures.

Referring to fig. 1, two ends of a hollow metal pipe (1) are respectively provided with an air bag pipe chuck (3) and a lining TPU gasket (10) which are used for sealing, connecting and fixing a TPU outer membrane bag (14), and the TPU inner membrane bag (8), the TPU gasket (10) and the TPU outer membrane bag (14) are manufactured into a hollow TPU air bag (34) which is assembled with the hollow metal pipe (1) into a complete hollow pipe sealing air bag (33); after the TPU gasket (10) and the TPU outer film bag (14) are sealed and welded, a formed cushion bag sealing and welding edge (23) is stuck and fixed in the chuck corner protection edge (32); a TPU inner film bag (8) is arranged outside the hollow metal pipe (1) and is sleeved with the hollow metal pipe for sealing, so that the effects of corrosion resistance and oxidation corrosion resistance are achieved; two ends of the hollow metal pipe (1) penetrate through the fixed air bag pipe clamping head (3), external threads (2) of the pipe opening are exposed, and two metal pipe sealing covers (15) are arranged to seal the two ends of the hollow metal pipe (1); two metal pipe ventilation covers (19) at the two ends of the hollow metal pipe (1) are provided with ventilation cover pipe orifices (20) which can ventilate the two ends of the hollow metal pipe (1); a hook ring (16) and a sealing cover internal thread (17) are arranged on the metal pipe sealing cover (15), and a hook ring (16) and a ventilation cover internal thread (18) are arranged on the metal pipe ventilation cover (19); an L-shaped groove (5) and a clamp corner protecting edge (32) are arranged in the air bag pipe clamp head (3) and used for storing a TPU gasket (10); two clamping head concave rings (28) are arranged on the outer diameter of the sealing pipe sleeve opening (4), and the TPU inner membrane bag (8) is fixed outside the hollow metal pipe (1) by a positioning binding belt (29); the air bag pipe clamping head (3) is provided with a clamping head vent hole (6), and a fixed air hole joint (12) penetrates through the clamping head vent hole (6) and is fixed by an air hole nut (13).

Referring to fig. 2, a clamp air vent (6), a roller bolt (7) and a self-sealing air hole (27) are arranged on the air bag pipe clamp (3); an L-shaped groove (5) and a clamping head corner protection edge (32) are arranged in the air bag pipe clamping head (3); a sealing pipe sleeve opening (4) is arranged in the air bag pipe clamping head (3).

Referring to fig. 3, a TPU inner film bag (8) is sleeved outside the hollow metal tube (1) on the TPU gasket (10) and penetrates through a sealing gasket vent hole (21); a plurality of inner membrane bag strips (9) are arranged at the two ends of the TPU inner membrane bag (8), and the TPU inner membrane bag strips are conveniently pasted and sealed with the TPU gasket (10) after being brushed with the sealant (22); the diameter of the inner diameter (30) of the sealing gasket is larger than that of the sleeve opening (4) of the sealing pipe, and the diameter of the outer diameter (31) of the sealing gasket is larger than that of the chuck angle bead edge (32).

Referring to fig. 4, a sealing pipe sleeve opening (4) on an air bag pipe chuck (3) is welded and fixed with a hollow metal pipe (1) into a whole, after a metal pipe ventilation cover (19) is rotationally covered, a blowing and sucking hard pipe (24) can be inserted into a ventilation cover pipe opening (20), and a blowing and sucking hose (25) and a hanging ring hook (26) are arranged on the blowing and sucking hard pipe (24) to ventilate and exchange air for two ends of the hollow metal pipe (1); the end of the hollow metal tube (1) passes through the fixed air bag tube chuck (3), and a vent cover tube opening (20) is arranged on a metal tube vent cover (19) at the end of the hollow metal tube (1); a chuck vent hole (6) is arranged on the air bag pipe chuck (3), and a fixed air hole joint (12) penetrates through the chuck vent hole (6) and is fixed by an air hole nut (13); an L-shaped groove (5) and a clamp corner protecting edge (32) are arranged in the air bag pipe clamp head (3) and are used for storing and protecting a TPU gasket (10) and a cushion bag sealing and welding edge (23) of a TPU outer membrane bag (14); a sealing pipe sleeve opening (4) is arranged in the air bag pipe clamping head (3), two clamping head concave rings (28) are arranged on the outer diameter of the sealing pipe sleeve opening (4), and a TPU inner membrane bag (8) is fixed outside the hollow metal pipe (1) by a positioning binding belt (29); the air bag pipe clamping head (3) is provided with a hook ring (16), a roller bolt (7) and a self-sealing air hole (27).

Claims

1. The multifunctional hollow exhaust air-tight seal air bag for the sewage pipeline comprises a hollow metal pipe (1), an air bag pipe clamping head (3), a TPU inner film bag (8), a TPU gasket (10), a TPU outer film bag (14), a metal pipe sealing cover (15), a metal pipe ventilation cover (19) and an air blowing and sucking hard pipe (24), wherein the TPU inner film bag (8) is arranged outside the hollow metal pipe (1) and is sleeved with a wrap seal to achieve the effects of corrosion resistance and oxidation resistance and corrosion resistance; two ends of a hollow metal pipe (1) are respectively provided with an air bag pipe clamping head (3), a TPU gasket (10) is lined and is used for sealing, connecting and fixing a TPU outer membrane bag (14), the TPU inner membrane bag (8), the TPU gasket (10) and the TPU outer membrane bag (14) are manufactured into a hollow TPU air bag (34), and the hollow TPU air bag and the hollow metal pipe (1) are assembled into a complete hollow pipe sealing air bag (33); two ends of the hollow metal pipe (1) penetrate through the fixed air bag pipe clamping head (3), external threads (2) of the pipe opening are exposed, and two metal pipe sealing covers (15) are arranged to seal the two ends of the hollow metal pipe (1); two metal pipe ventilation covers (19) are arranged and inserted into the blowing and sucking hard pipes (24) to ventilate and ventilate two ends of the hollow metal pipe (1).

2. The multifunctional sewer line hollow exhaust gas sealing airbag of claim 1, wherein: a chuck vent hole (6) is arranged on the air bag pipe chuck (3), a fixed air hole joint (12) penetrates through the chuck vent hole (6) and is fixed by an air hole nut (13), and a roller bolt (7) and a self-sealing air hole (27) are arranged; an L-shaped groove (5) and a clamp corner protecting edge (32) are arranged in the air bag pipe clamp head (3) and used for storing a TPU gasket (10); a sealing pipe sleeve opening (4) is arranged in the air bag pipe clamping head (3); two clamping head concave rings (28) are arranged on the outer diameter of the sealing pipe sleeve opening (4), and the TPU inner membrane bag (8) is fixed outside the hollow metal pipe (1) by a positioning binding belt (29).

3. The multifunctional sewer line hollow exhaust gas sealing airbag of claim 1, wherein: sleeving a TPU inner membrane bag (8) outside the hollow metal tube (1); a plurality of inner membrane bag strips (9) are arranged at the two ends of the TPU inner membrane bag (8) so as to be convenient for welding and sealing with a TPU gasket (10).

4. The multifunctional sewer line hollow exhaust gas sealing airbag of claim 1, wherein: an air hole sealing washer (11) and a self-sealing air hole (27) are arranged on the TPU gasket (10); brushing a plurality of inner film bag strips (9) at two ends of the TPU inner film bag (8) with the TPU gasket (10) by using a sealant (22) to be adhered and sealed; the diameter of the sealing gasket vent hole (21) is larger than that of the sealing pipe sleeve opening (4), and the diameter of the sealing gasket outer diameter (31) is larger than that of the clamping head corner protection edge (32), so that the TPU inner membrane bag (8) and the TPU outer membrane bag (14) can be welded conveniently.

5. The multifunctional sewer line hollow exhaust gas sealing airbag of claim 1, wherein: a hook ring (16) and a sealing cover internal thread (17) are arranged on the metal tube sealing cover (15).

6. The multifunctional sewer line hollow exhaust gas sealing airbag of claim 1, wherein: the metal pipe ventilation cover (19) is provided with a ventilation cover pipe orifice (20) which is convenient for inserting a blowing and sucking hard pipe (24); and is provided with a hook ring (16) and an internal thread (18) of the vent cover.

7. The multifunctional sewer line hollow exhaust gas sealing airbag of claim 1, wherein: the blowing and sucking hard tube (24) is provided with a blowing and sucking hose (25) and a hanging ring hook (26).