JP3180612U - Partition pad - Google Patents

Abstract

A partition pad capable of sealing a gap with a tunnel inner wall without using power is provided.
A flexible bag material 12 made of a material that blocks air flow, an elastic material 14 provided in the bag material 12, and a communication hole provided in the bag material 12 for communicating inside and outside. . When the pressure inside the bag material 12 is released by facing the inner wall of the tunnel where the partition pad 10 in which the inside of the bag material 12 has become negative pressure and the elastic material 14 is in a contracted state is to be partitioned, the elastic material 14 has its own elastic force. Thus, the contracted state is restored to the expanded state, and the partition pad 10 is brought into close contact with the inner wall of the tunnel.
[Selection] Figure 7

Description

  The present invention relates to a partition pad for partitioning with a gas tightness in a partition disposed in a tunnel well or in a tunnel.

  For example, partitions placed at tunnel wellheads and inside tunnels are necessary to control the air flow inside the tunnel. Dust removal, dust diffusion prevention, noise blocking, internal temperature control, lining concrete Used for the purpose of curing. At this time, high airtightness between the inner wall of the arch-shaped tunnel and the partition is required.

  Conventionally, the partition described in Patent Document 1 to Patent Document 3 is known as one that maintains high airtightness between the two.

  In the tunnel partition device disclosed in Patent Document 1, an arch-shaped frame having an arch shape that is spaced apart from the inner wall of the tunnel and having a balloon storage recess that is opened to the outer peripheral side along the arch shape, and An inner circumferential side is housed in the balloon housing recess, and an arched balloon that expands from the arch-shaped frame to the outer circumferential side by air supply and can be brought into close contact with the inner wall of the tunnel is provided.

  Also, Patent Documents 2 to 4 disclose a partition that, like Patent Document 1, uses a balloon that is inflated by supply of air or the like to seal a gap between the inner wall of the tunnel.

Japanese Patent No. 4037301 Registered Utility Model No. 3169940 Registered Utility Model No. 3075320 Registered Utility Model No. 3033931

  However, in a balloon used for such a conventional partition, it is necessary to maintain the operation of the blower and continue to supply air to the balloon, and power is always required, which is not economical. Further, when a hole is opened in the balloon, it may become deflated and a trouble that the sealing performance cannot be maintained may occur.

  SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and its purpose is to provide a partition pad that is energy-saving, can prevent troubles, and can seal a gap with a tunnel inner wall. To do.

In order to achieve the above object, the present invention is a partition pad for sealing a gap between a partition inner wall and a partition pad,
A soft bag material made of a material that blocks air flow, an elastic material provided in the bag material, and a communication hole provided in the bag material to communicate the inside and the outside. Due to the elastic force, it can be expanded and contracted into a contracted state contracted in the thickness direction by the negative pressure in the bag material and an expanded state expanded in the thickness direction by releasing the pressure in the bag material, It is characterized in that it can be brought into close contact with the inner wall of the partition in the expanded state of the elastic material.

  According to a second aspect of the present invention, in the first aspect of the present invention, the elastic material is a foam member.

  The device described in claim 3 is characterized in that, in the device described in claim 1 or 2, an air vent channel for venting air from the elastic material is provided in the bag material.

  The invention according to claim 4 is the invention according to claim 3, wherein the air vent channel has an outlet that extends out of the bag material through the communication hole, and opens and closes the communication hole at the outlet. A stop valve is provided.

  The invention according to claim 5 is a partition having the partition pad according to any one of claims 1 to 4 on an outer peripheral portion.

  According to the present invention, when the pressure in the bag material is released from the contracted state of the elastic material by facing the partition inner wall to be partitioned with the partition pad in which the inside of the bag material has become negative pressure and the elastic material is in the contracted state. The elastic material can be restored to the expanded state by its own elastic force and can be in close contact with the inner wall of the partition. By maintaining the state of being in close contact with the inner wall of the partition by the elastic force of the elastic material, power can be made unnecessary and an economical configuration can be achieved.

  Further, since the pressure in the bag material is released during use, there is no problem even if a hole is opened in the bag material, and trouble can be prevented.

(A) is a perspective view of the partition pad which concerns on embodiment of this invention, (b) is a cross-sectional view, and shows the expansion | swelling state of an elastic body. (A) is a perspective view of the partition pad which concerns on embodiment of this invention, (b) is a cross-sectional view, and shows the contraction state of an elastic body. It is a figure showing the element which comprises an elastic material. It is sectional drawing in a tunnel which shows the state before aiming at sealing using the partition pad which concerns on embodiment of this invention. It is sectional drawing in a tunnel which shows the state which is sealing using the partition pad which concerns on embodiment of this invention. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. FIG. 6 is a partial cross-sectional view of the partition pad in FIG. 5, and an imaginary line represents before sealing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the partition pad 10 of the present invention has a bag material 12. The bag material 12 is made of a soft material that blocks air flow, and the front view can have a rectangular shape, for example. Specifically, materials such as vinyl chloride and a sheet (tent sheet) obtained by applying vinyl chloride to a polyester base fabric can be used. And it is soft enough to at least follow the curved shape of the inner wall of the partition.

  An elastic material 14 is disposed in the bag material 12 in a substantially filled state. The elastic material 14 is a member having a thickness that can be expanded and contracted, and has elasticity by itself. As a material of the elastic material 14 having elasticity in this way, a porous material, a sponge, and a foamed material can be preferably used. More specifically, materials such as foamed urethane, foamed polyethylene, foamed polypropylene, and foamed polyester are used. Can be used. The foamed material can have both closed cells and open cells, but preferably has open cells in the thickness direction and air circulation. Similarly, the porous material and the sponge preferably have continuous pores in the thickness direction and have air circulation properties.

  The elastic member 14 can have a plurality of flow passages 14a therein. The elastic force of the elastic member 14 can be adjusted by adjusting the shape, cross-sectional area, and number of the flow passages 14a. The cross-sectional area of the flow passage 14a may be an arbitrary shape such as a circle, a square, a triangle, or an ellipse, but preferably has a shape that can receive pressure as evenly as possible.

  As shown in FIG. 3, the elastic member 14 can be composed of a plurality of elements 14A, 14B, and 14C. When the concave portions are appropriately formed on the side surfaces of the respective elements 14A to 14C and these elements 14A to 14C are combined so as to be adjacent to each other, the flow passage 14a may be formed by the concave portions of the adjacent elements. These elements 14A, 14B, and 14C can be bonded together by adhesion.

  An air vent pipe 16 that defines an air vent channel is embedded in the elastic member 14. The air vent pipe 16 has flexibility and is preferably a pipe having a circular cross section. Specifically, it can be composed of a polyethylene pipe or the like. At least, it is flexible enough to follow the curved shape of the inner wall of the partition. The air vent pipe 16 is provided with holes (for example, about 5 mm diameter) 16a at predetermined intervals (for example, 15 cm) so that air can be sucked through the holes.

  Furthermore, the bag material 12 is formed with a communication hole 12a that allows the inside and outside of the bag material 12 to communicate with each other. The air vent pipe 16 passes through the communication hole 12a and extends to the outside of the bag member 12 to have an outlet 18. Further, the outlet 18 has a stop valve 20 for opening and closing the communication hole 12a. Provided.

  Part of the bag material 12 is fixed to the outer periphery of the partition 30 described later, and the elastic material 14 is also fixed to the partition 30 via the bag material 12 by fixing the surface orthogonal to the thickness direction to the bag material 12. Fixed. Preferably, as shown in FIG. 7, the side of the elastic member 14 on which the air vent pipe 16 is disposed may be fixed to the partition 30.

  In the partition pad 10 configured as described above, by changing the pressure in the bag material 12, the elastic material 14 expands and contracts at least in the thickness direction, thereby being contracted by the negative pressure in the bag material 12. The inflated state can be expanded and contracted by releasing the pressure in the bag material.

  Prior to use, the partition pad 10 is connected to a vacuum pump at the outlet 18 to open the stop valve 20, sucks air from the numerous holes 16 a of the air vent pipe 16, and creates a negative pressure in the bag material 12 to form an elastic material. 14 is contracted to reduce its thickness. As a result, the partition pad 10 becomes thin (FIG. 2). Although simplified in the drawing, the bag material 12 may be appropriately folded in accordance with the contraction.

  On the other hand, when the partition pad 10 is used, the stop valve 20 is opened with the outlet 18 opened to the atmosphere. As a result, the inside of the bag material 12 becomes atmospheric pressure through the numerous holes 16a of the air vent pipe 16, and the elastic material 14 becomes inflated by its own elasticity and its thickness increases. As a result, the partitioning pad 10 becomes thick, which is 2 to 4 times as thick as when it is thin (FIG. 1).

  FIG. 4 shows a partition 30 using the partition pad 10 described above. The partition 30 is a wall formed of an aggregate made of iron, steel, or the like so as to coincide with the section of the inner wall of the partition and is slightly smaller than the section of the inner wall of the partition and defines a common port 34 in the center. A base 32 and a partition panel sheet 36 stretched over the wall base 32 are provided. Further, a sheet shutter 38 that allows the sheet to be raised and lowered is installed at the common port 34.

  The partition panel sheet 36 can be soundproof, soundproof, etc., and is made of polyester or the like. Further, as the sheet shutter 38, one described in Japanese Patent No. 5043246 can be used, and a sheet that can be raised and lowered includes a flexible sheet main body 38a and a flexible sheet. A reinforcing belt 38b that is fixedly integrated with the seat body and has a tensile strength stronger than that of the seat body, a weight 38c attached to the lower side of the seat body, and a drive mechanism that lifts and lowers the seat. Can be.

  The procedure for manufacturing and installing the partition 30 will be described below. Here, as shown in FIGS. 4 and 5, the partition 30 is installed at a tunnel installation location such as a tunnel wellhead or inside a tunnel, and more specifically, an inner wall of a tunnel having an arch shape, a curved surface, or a non-planar cross section, The case where the inner wall of the lining concrete is used as the inner wall 40 is closely attached to the inner wall 40.

1. First, the wall base 32 having a substantially arch-shaped frame 32a that is slightly smaller than the actual size of the inner wall of the partition at the tunnel installation location is formed. Although not shown, when there are wind pipes and other pipes in the tunnel, the wall foundation 32 is formed so as to bypass or pass through them.

2. A partition wall panel sheet 36 is stretched over the wall base 32 to form a partition wall, and a sheet shutter 38 is installed in a common port 34 formed in the center of the wall base 32. Further, the partition pad 10 is fixed by bonding or the like along the outer peripheral surface of the wall base 32 to complete the partition 30. At this time, the elastic member 14 of the partition pad 10 is in a contracted state, and the partition pad 10 is thin.

3. The partition 30 is moved to the tunnel installation location. At this time, since the partition pad 10 is thin, a sufficient clearance is secured between the partition pad 10 and the partition inner wall 40. Thus, the partition pad 10 is disposed to face the partition inner wall 40.
Preferably, wheels 39 are provided on the front and back of the partition 30 so that the partition 30 can be easily moved.

4). Next, the stop valve 20 of the partition pad 10 is opened, and the elastic material 14 is in an expanded state, so that the elastic material 14 closes the gap between the partition inner wall 40 and the partition 30. Due to the elasticity of the elastic material 14, the partition pad 10 can be completely adhered to the partition inner wall 40 and the pipes to provide airtightness (see FIGS. 5 and 7).

5). The same partition 30 is installed in another tunnel installation location as needed. In this way, the tunnel or certain sections of the tunnel can be sealed. In this state, the interior of the bag material 12 of the partition pad 10 is released to atmospheric pressure, so that airtightness can be maintained without requiring any power. Moreover, since it only releases to atmospheric pressure, a sealing work can be performed in a short time.

6). When removing the partition 30, a vacuum pump is connected to the outlet 18 of the partition pad 10 so that the inside of the bag 12 is negative pressure and the elastic material 14 is in a contracted state. As a result, the gap is formed again with the inner wall 40 of the partition, so that the partition 30 can be easily moved.

  As described above, during the operation of the partition 30, the partition pad 10 maintains airtightness due to the elasticity of the elastic material 14, and it is not necessary to generate any power, which is economical and saves energy. Can be planned.

  Further, during the operation of the partition 30, the inside of the bag material 12 is released to the atmospheric pressure, and the airtightness is maintained by the elasticity of the elastic material 14, so there is no problem even if the bag material 12 is damaged. Therefore, troubles due to sealing failure during sealing can be avoided.

10 partition pad 12 bag material 12a communication hole 14 elastic material 16 air vent pipe (air vent channel)
18 Exit 20 Stop valve 30 Partition

Claims (5)

A partition pad for sealing a gap between the inner wall of the partition,
A soft bag material made of a material that blocks air flow, an elastic material provided in the bag material, and a communication hole provided in the bag material to communicate the inside and the outside. Due to the elastic force, it can be expanded and contracted into a contracted state contracted in the thickness direction by the negative pressure in the bag material and an expanded state expanded in the thickness direction by releasing the pressure in the bag material, A partition pad characterized in that it can be in close contact with the inner wall of the partition in an expanded state of an elastic material.   The partition pad according to claim 1, wherein the elastic material is a foam member.   The partition pad according to claim 1 or 2, wherein an air vent channel for venting air from the elastic material is provided in the bag material.   The said air vent flow path has the exit extended through the said communicating hole and out of the bag material, The stop valve which opens and closes the said communicating hole is provided in this exit. Partition pad.   The partition which has the pad for partitions in any one of Claims 1 thru | or 4 in an outer peripheral part.

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