JP2776748B2 - Wind tube coupling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind tube connecting device used for extending or branching a ventilation tube for a tunnel.

[0002]

2. Description of the Related Art When it is necessary to extend or branch a ventilation duct for tunnel construction or the like, a technique is known in which a fan is stopped and connection is made with no wind pressure in the duct.

[0003]

However, if a wind tube made of a synthetic resin sheet member, for example, a vinyl-based wind tube, is arranged at the height of H above the tunnel as shown in FIG. When the wind pressure in the pipe disappears, the pipe hangs down as shown in FIG. 5 and obstructs the passage of the space by ΔH.

[0004] In addition, if there is a branch pipe, if the fan is stopped and the work is performed, there is a problem that the ventilation of the face requiring ventilation is stopped, and the work is hindered.

Accordingly, it is an object of the present invention to provide a wind tube connecting device capable of extending or branching a wind tube while operating a fan.

[0006]

According to the present invention, there is provided an air tube connecting device for connecting a ventilation air tube of a tunnel formed of a synthetic resin sheet member, wherein the T-shape is formed by the synthetic resin sheet member. Fasteners are respectively provided at three-way openings of the T-shaped wind pipe, and synthetic resin sheet members are provided inside the branch pipe having the first opening and the inside of the branch pipe having the second opening of the T-shaped wind pipe. Each of the constructed tubular bodies is inserted, one end of each of the tubular bodies is hermetically fixed to the branch pipe, and the other end is provided with opening / closing means for opening and closing the other end.

According to the present invention, in a wind pipe connecting device for connecting a ventilation wind pipe of a tunnel formed of a synthetic resin sheet member, a Y-shaped wind pipe formed in a Y-shape by the synthetic resin sheet member is provided. A zipper is provided in each of the three directions of openings, and a tube formed of a synthetic resin sheet member inside the branch pipe having the first opening and inside the branch pipe having the second opening of the Y-shaped wind pipe. Each of the tubular bodies is inserted, one end of each of the tubular bodies is hermetically fixed to the branch pipe, and the other end is provided with opening / closing means for opening and closing the other end.

According to the present invention, the opening / closing means comprises a rope provided at the other end of the tubular body and a winding winch for winding the rope, and the winding winch is an electric winding winch. I have.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is constructed as described above, and the opening of a branch pipe having no tubular body inside is connected to the end of the wind pipe in advance by any known fastener. For example, when extending in the direction of the first opening of the T-shaped wind tube, for example, the other end of the tubular body provided inside the first opening is driven and closed by driving the electric winding winch. If the air in the pipe is allowed to escape from the second opening, the first opening has no wind pressure, so that it can be easily connected by a known fastener, and after the connection, the tubular body provided inside the second opening is electrically driven. If the take-up winch is driven to close and the winch on the first opening side is turned off, the air in the air duct flows to the extended wind pipe side.

In the case of branching, after the above operation, an air duct is connected to the second opening, and then the electric winch on the second opening side may be turned off.

[0011] In addition, even if a Y-type air tube is used, extension or branching can be similarly performed, and selection may be made according to the environment of the work place, and there is no fundamental difference in the operational effects.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

In the drawings, members having the same functions are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 1 exemplifies a mode in a tunnel in which a wind pipe is extended by using a wind pipe connecting apparatus of the present invention. A ventilation blower 2 for ventilation is provided at a face K of a tunnel T, and the blower Are connected to an inverter 3 and a control device 4 for controlling them.

The ventilation blower 2 is connected to a vinyl-type wind tube 1 which is a wind tube made of a synthetic resin sheet member for ventilation, and a wind tube connecting device 5 according to the present invention is provided at an end thereof. A vinyl wind tube 7 is connected to the wind tube connecting device 5 by a fastener 20a, which is connected by a fastener 21a, which is a known technique.

FIG. 2 shows the air tube connecting device 5, in which a tubular body 11 is inserted inside a branch tube 20b having a first opening 20 of a vinyl-type air tube formed in a T shape. The one end 16 is securely secured to the inner surface of the branch pipe 20b by a high-frequency sewing machine.

The other end of the tubular body 11 is provided with a rope passage 12 through which a rope passes, and a rope 13 having one end fixed to a reinforced fixing portion 15 of the branch pipe 20b passes through the rope passage 12. The other end is connected to the electric winding winch 14.

Then, the branch pipe 1 having the second opening 10
One end 16 of the tubular body 11 is fixed to the inside of the pipe 10b in the same manner as the branch pipe 20b, and the other end is similarly provided with a rope passage 12 through which a rope passes.
The rope 13 fixed to the reinforced fixing portion 15 of the wire 0b passes through, and the other end is connected to the electric winding winch 14.

Further, the first opening 20 and the second opening 1
The fasteners 20a, 1a, and 1b, which are well known in the art, are provided in the first opening 21 and the third opening 21 having no tubular body 11 inside.
0a and 21a are attached.

Therefore, when connecting the vinyl wind pipe 7 to be extended, the electric winding winch 14 of the annular body 11 provided in the first opening 20 is turned on, and the winch is driven to wind up the rope 13. And the other end of the tubular body 11 is throttled and closed, so that air from the blower 2 does not come to the first opening 20 and air from the blower 2 is provided in the second opening 10 by air pressure. The other end of the tubular body 11 is opened and discharged into the tunnel.

Therefore, the vinyl wind pipe 7 extending to the first opening 20 can be easily connected by a known fastener 20a. When the connection is completed, the winch on the first opening side is turned off, and the second opening is turned off. If you switch on some winches,
The second opening 10 is closed, air flows through the first opening 20, and ventilation flows through the extended vinyl wind pipe 7.

When branching, in this state, the second
If a vinyl wind tube (not shown) is connected to the opening 10 of the vehicle with a fastener 10a and the electric winding winch is turned off, the second
Since the air also flows to the opening side of the air flow, the air flow can be branched.

It is convenient to adjust the opening of the other end of the tubular body 11 since the flow rate of air can be adjusted.

FIG. 3 shows a second embodiment of the present invention.
Instead of the T-shaped vinyl wind tube of the embodiment, Y
It is the same except that the annular body 11 is provided in the first opening 31 and the second opening 30 of the vinyl-type wind pipe configured in the shape of a letter, and the operation is the same. , Location and the like.

[0025]

The present invention has the following advantages because it is configured as described above.

(1) It is possible to easily, safely and in a short time extend the vinyl air duct for ventilation without stopping the ventilation blower. (2) The branching of the ventilation vinyl air tube can be performed easily and safely in a short time without stopping the ventilation blower. (3) In addition, it is possible to adjust the air volume of the vinyl air duct for ventilation.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a wind tube coupling device showing one embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of FIG.

FIG. 3 is a diagram showing a second embodiment of the present invention.

FIG. 4 is a view showing a state in which air is being supplied to a wind pipe of a tunnel showing a conventional technique.

FIG. 5 is a diagram showing a state in which air in a central air duct in FIG. 4 is stopped.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wind pipe 2 ... Ventilation blower 3 ... Inverter 5 ... Wind pipe coupling device 7 ... Extension pipe 10, 30 ... 2nd opening 11 ... Tubular body 12 ... Rope passage 13 ... Rope 14 ... Electric hoisting winch 20, 31 ... First opening T ... Tunnel K ... Face

Claims (4)

(57) [Claims] 1. A wind pipe connecting device for connecting a ventilation wind pipe of a tunnel constituted by a synthetic resin sheet member, wherein a T-shaped opening formed in a T-shape by a synthetic resin sheet member in three directions. Are provided with fasteners, respectively, and the first
A tubular body made of a synthetic resin sheet member is inserted into the inside of the branch pipe having the opening and the inside of the branch pipe having the second opening, and one end of the tubular body is airtightly connected to the branch pipe. An air tube coupling device fixedly provided with an opening / closing means at the other end for opening and closing the other end. 2. A wind pipe connecting apparatus for connecting a ventilation wind pipe of a tunnel formed of a synthetic resin sheet member, wherein three-directional openings of a Y-shaped wind pipe formed in a Y-shape by the synthetic resin sheet member. Are provided with fasteners, respectively, and the first
A tubular body made of a synthetic resin sheet member is inserted into the inside of the branch pipe having the opening and the inside of the branch pipe having the second opening, and one end of the tubular body is airtightly connected to the branch pipe. An air tube coupling device fixedly provided with an opening / closing means at the other end for opening and closing the other end. 3. The wind tube coupling device according to claim 1, wherein said opening / closing means comprises a rope provided at the other end of the tubular body and a winding winch for winding the rope. 4. The wind tube coupling device according to claim 3, wherein the winding winch is an electric winding winch.