JPH0540045Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a flexible tube winding device used in an excavator or the like that excavates a tunnel using a muddy water pressurized shield method.

(Conventional technology) In the mud water pressurization shield construction method, a bulkhead is installed at the rear of the cutter, and muddy water is pumped between the bulkhead and the face, and the mud water pressure presses down the ground while cutting it down with the cutter, and the taken-in soil is removed. This excavation is carried out by stirring the fluid with an agitator and transporting the fluid along with the muddy water to the ground using a drainage pump.The muddy water pressure can suppress the overflowing water, allowing excavation even in areas where construction is impossible due to the large amount of overflowing water and the possibility of collapse. It has the advantage of being able to save labor as well as to save labor.

By the way, fluid transportation of muddy water, which is essential to the muddy pressurized shield construction method, is achieved by laying a mud feeding pipe and a mud removal pipe equipped with a telescoping pipe in a mine, and following the excavation movement of an excavator, the telescoping pipe is It is necessary to extend the pipe, but conventionally, this type of telescopic pipe is
Those with a double-tube structure in which an inner cylinder provided inside an outer cylinder slides, and those with a meandering flexible tube that can be expanded and contracted are used.

(Problem to be solved by the invention) Among the conventional techniques, the former has the disadvantage that it obstructs the bogie traveling inside the tunnel when the curve of the tunnel is small because it expands and contracts in a straight line. be. In addition, the latter has the disadvantage that when water pressure is applied to the flexible tube in a meandering state, the flexible tube may suddenly move due to the pressure, which is dangerous.

The present invention was devised in view of these problems of the conventional technology, and its purpose is to create a flexible and safe flexible pipe that follows the excavation movement of an excavator. It is an object of the present invention to provide a flexible tube winding device that can be stretched and easily wound into a small space.

(Means for Solving the Problems) In order to achieve the above object, the flexible tube winding device of the present invention includes a base, a cylindrical part placed on the base via a mounting base, and a cylindrical part placed on the base via a mounting base. It is fixed to the center of an enclosing frame provided on both sides of the cylindrical part and a flange plate provided at the center of the interior of the cylindrical part, with one end disposed on the outer peripheral surface of the cylindrical part and the other end via a rotary joint. a winding member consisting of a connecting pipe protruding from the outside, a pair of supporting members provided at different height positions on the base and abutting the outer circumferential surface of the cylindrical part; and a rotary pressing member provided at an intermediate position between the pair of support members and abutting on the inner circumferential surface of the cylindrical portion.

(Function) As the flexible pipe expands as excavation progresses,
The take-up member rotates on the support member of the base to feed out the flexible tube. On the other hand, the flexible tube is wound up by manually rotating the surrounding frame of the winding member, which also serves to form a storage section for the flexible tube. At this time, since a pressing member is engaged with the inner peripheral surface of the cylindrical portion of the winding member, the winding member is prevented from lifting up or falling off when sudden force or upward force is applied. .

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2.

The flexible tube winding device of the present invention includes a base 1 and a base 1.
The winding member 10 is placed on the support members 2 and 3 and is engaged with a pressing member 4.

The supporting member 2 is provided with rollers 6 having flanges 5 facing each other, and the rotating shafts 7 of the rollers 6 are respectively fitted into bearings 9 fixed to mounting bases 8 at symmetrical positions in the width direction of the base 1. The winding member 10 is configured to support the weight and other loads of the winding member 10 and to enable its rotation. The support member 3 is different in that the mounting base 24 is formed higher than the mounting base 8 of the support member 2,
Otherwise, the configuration is the same. The support point of the support member 3 with respect to the winding member 10 is made high because the flexible tube 1
Since it corresponds to the feeding direction of 1, the sudden flexibility of the tube 1
In response to the tensile force generated by elongation of 1,
This is to prevent the winding member 10 from falling off.

Further, the pressing member 4 is provided with rollers 13 having flanges 12 facing each other, and the rotating shaft 14 of the roller 13 is mounted on a bearing 16 fixed to a mounting base 15 at a symmetrical position in the width direction of the base 1. The inner circumferential surface 17a of the cylindrical portion 17 of the winding member 10 is configured to be fitted into each other and placed on the support members 2 and 3.
is engaged with.

In this way, the winding member 10 is prevented from moving in the width direction by the flanges 5 of the rollers 6 of each of the supporting members 2 and 3, and is prevented from floating upward by the pressing member 4. It is installed in a stable state on a pair of support members 2 and 3.

The configuration of the winding member 10 is such that a flange plate 18 is provided at the center of the cylindrical portion 17 in the width direction, and an end portion 19a is provided at the center of one side of the flange plate 18.
A joint pipe 19 disposed on the outer circumferential surface 17b is fixed, and on the opposite side, an end portion 20a is formed to be located outside the lateral side of the cylindrical portion 17, and a rotary joint 21 is provided in the intermediate portion. A joint pipe 20 is attached. In addition, 22 in the figure is the cylindrical part 17.
Shows the surrounding frames provided on both sides of the . A flexible tube 11 is connected to the end 19a of the joint tube 19, and the flexible tube 11 is connected to the outer peripheral surface 17b of the cylindrical portion 17.
and the surrounding frame 22, and a connecting pipe 2 is connected to the end 20a of the connecting pipe 20.
3 is connected.

Now, based on the drawings, a mud water pressure shield construction method using the flexible tube winding device of the present invention will be explained. In this construction method, one system transports muddy water from a connecting pipe 23 connected to a flexible pipe winding device toward the flexible pipe 11, and the other system transports mud water to the flexible pipe 11.
Mud water is transported from 1 to a connecting pipe 23 and discharged to the ground. At this time, the flexible tube 11 is connected to a pipe (not shown) of the excavator, and expands as the excavator moves as the excavation progresses. After that, when the flexible tube 11 reaches its maximum length, the excavation is stopped, the flexible tube 11 and the pipe of the excavator are separated, and the surrounding frame 22 of the winding member 10 is turned by hand to remove the flexible tube 11.
Wind up. Then, the flexible tube winding device is moved to the position of the excavator, and the above operations are repeated to advance the excavation.

(Effects of the invention) As explained above, according to the flexible tube winding device of the present invention, as excavation progresses, that is, when the excavator moves, the flexible tube is sent out from the winding member and elongated as the excavation progresses. Furthermore, when winding up the flexible tube, the flexible tube can be easily stored by turning the surrounding frame of the winding member by hand. The widthwise movement of this winding member is regulated by a flange of a roller such as a support member, and the upward movement is regulated by a pressing member engaged with the inner circumferential surface of the cylindrical portion. , preventing it from lifting or falling off.

[Brief explanation of the drawing]

FIG. 1 is a side view of the flexible tube winding device of the present invention;
FIG. 2 is a sectional view. DESCRIPTION OF SYMBOLS 1... Base, 2, 3... Supporting member, 4... Holding member, 10... Winding member, 17... Cylindrical part, 1
9, 20... joint pipe, 21... rotary joint, 22... enclosing frame.

Claims (1)

[Scope of Claim for Utility Model Registration] A flexible tube winding device used in the muddy water pressurized shield construction method, which comprises: a base; a cylindrical part placed on the base via a mounting base; and the cylindrical part. An enclosing frame provided on both sides of the
A pipe fixed to the center of a flange plate provided at the center of the interior of the cylindrical portion, and having one end disposed on the outer circumferential surface of the cylindrical portion and the other end protruding to the outside via a rotary joint. a holding member; a pair of support members provided at different height positions on the base and abutting the outer peripheral surface of the cylindrical portion; and a pair of support members provided on the base at an intermediate position between the pair of support members; A flexible tube winding device comprising: a rotary pressing member that comes into contact with the inner circumferential surface of the cylindrical portion;