Water intake facilities

Abstract

The present invention provides a water supply system that allows for easy cleaning of the interior when free lime precipitates, and also offers excellent watertightness. [Solution] This is a water diversion device installed on the wall surface of a structure to drain water leaking from the wall surface. A water diversion trough 10 extends vertically, with a water diversion plate 13 held at a predetermined distance from the wall surface by left and right corner members 11 and 12. An openable and closable water diversion trough 20 is connected to the lower part of the trough 10, with one side of the water diversion plate 23 supported by a hinge 22 attached to one corner member 21, and the opposite side in close contact with the other corner member 24. It is preferable that the water diversion plate 13 be a transparent water diversion plate.

Description

Technical Field

[0001] The present invention relates to a water-conducting facility installed on the wall surface of structures such as tunnels and underpasses, which allows water leakage from the wall surface to flow down towards the drainage facility at the lower part of the structure.

Background Art

[0002] Groundwater or rainwater may leak and seep out from the concrete wall surfaces of structures such as tunnels and underpasses. Especially in cold regions, the leakage becomes icicles and may fall and collide with pedestrians or moving vehicles. Also, the moisture that has penetrated into joints etc. may freeze, easily causing cracks in the concrete and generating a large amount of leakage, which may drip onto vehicles running inside the tunnel or on communication and electrical related facilities installed there.

[0003] Therefore, conventionally, water-conducting facilities as shown in Patent Document 1 have been installed on the wall surfaces of structures such as tunnels. This consists of a water-conducting gutter in which a water-conducting plate is fixed at a predetermined interval from the wall surface by left and right corner members, and has a structure for conducting water leakage from the wall surface to the lower drainage facility. The left and right corner members are fixed to the wall surface by anchor bolts.

[0004] For the facilities installed in the tunnel, visual regular inspections are required, and the water-conducting facility is also one of the inspection targets. Using a water-conducting plate made of transparent resin as the water-conducting plate has also been conventionally done so that visual inspections can be easily performed.

[0005] However, since the leakage contains soil and lime components in the concrete, it may precipitate as free lime in the water-conducting gutter. When the precipitate of free lime increases, stagnation occurs and hinders the flowing water in the water-conducting gutter. Especially, free lime easily stagnates near the downstream end close to the ground, and as a result, there have been cases where the leakage that could not be discharged flowed back in the water-conducting gutter and gushed out, or the water-conducting gutter was damaged by internal pressure.

[0006] Therefore, if road administrators discover drainage obstruction due to the deposition of free lime during periodic inspections, they will carry out work to remove the free lime. However, this requires removing existing drainage pipes, cleaning the inside, and reassembling them, which basically necessitates ordering construction work.

[0007] There are also detachable water conduits, which are pre-installed in sections so that the conduit requiring cleaning can be removed along with the main body. However, there are problems with this design: making it easy to remove compromises the water-stopping function, while prioritizing the water-stopping function makes removal difficult. Therefore, there have been few examples of its adoption. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2019-7296 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] Therefore, the objective of the present invention is to solve the above-mentioned conventional problems and to provide a water supply system that allows for easy cleaning of the inside of the water supply trough when free lime precipitates, and that also has excellent water-sealing properties. [Means for solving the problem]

[0010] The present invention, made to solve the above problems, is a water guide system installed on the wall surface of a structure to drain water leaking from the wall surface, characterized in that a water guide plate is held at a predetermined distance from the wall surface by left and right corner members, and a vertically extending water guide pipe is connected to the lower part of the water guide pipe, with one side of the water guide plate supported by a hinge attached to one corner member, and the opposite side of the water guide plate in close contact with the other corner member.

[0011] Furthermore, it is preferable that the water guide plate of the openable and closable water guide pipe has a structure in which water-sealing rubber plates are attached to the back surfaces of both the left and right sides to seal the gap between it and the corner member. In addition, it is preferable that the corner member on the hinge side has a sealing flat plate protruding from it at a position lower than its surface, which is in close contact with the water-sealing rubber plate. [Effects of the Invention]

[0012] The water intake system of the present invention connects an openable and closable water intake pipe to the lower part of a vertically extending water intake pipe where free lime tends to precipitate. By simply removing a nut, the water intake plate can be opened, allowing for easy cleaning of the interior. Furthermore, since the water intake plate is supported on one side by a hinge attached to one corner member and the other side is tightly attached to the other corner member, it has excellent water-sealing properties. In particular, by adopting the water-sealing structure described in claims 2 and 3, the water-sealing function can be further enhanced. By adopting the water intake system of the present invention, even if free lime precipitates, it can be easily cleaned, eliminating the need for disassembly work as in the past, which has a significant practical effect. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view showing the interior of a tunnel in which the water intake equipment of the present invention is installed. [Figure 2] This is a front view showing one panel of the water intake pipe. [Figure 3] This is a cross-sectional view of Figure 2. [Figure 4] This is a front view showing the lower part of the water conduit connected to an openable / closable water conduit. [Figure 5] This is a front view and a cross-sectional view thereof of an openable and closable water conduit. [Figure 6] This is an enlarged cross-sectional view of the main part. [Figure 7] This is a cross-sectional view of a corner member. [Figure 8] This is an enlarged cross-sectional view of the main part showing the water guide plate in the open position. [Figure 9] This is a perspective view showing the water guide plate in the open position. [Modes for carrying out the invention]

[0014] The preferred embodiments of the present invention will be described below. FIG. 1 is a perspective view showing the inside of a tunnel, which is a structure in which the water conduction facility of the present invention is installed. Reference numeral 10 denotes a conventional water conduction gutter installed along the wall surface of the tunnel. FIG. 2 is a front view showing one panel thereof, and FIG. 3 is a cross-sectional view thereof.

[0015] As shown in FIG. 3, the water conduction gutter 10 has a structure in which a water conduction plate 13 is held at a predetermined interval from the wall surface 14 by left and right corner members 11 and 12. As the water conduction plate 13, it is preferable to use a transparent water conduction plate with an easily visible interior. Anchor bolts 15 at the four corners of the panel penetrate the left and right corner members 11 and 12 and the water conduction plate 13 and fix the whole to the wall surface 14. The space formed between the water conduction plate 13 and the wall surface 14 serves as a water leakage flow path 16. The height of one panel is, for example, 3 m, and as shown in FIG. 1, a structure is adopted in which a large number of panels are connected to allow water leakage from the wall surface 14 to flow down toward a drainage facility 17 at the lower part of the structure. Although not shown in FIG. 1, a substantially horizontal water conduction gutter extending in the longitudinal direction of the tunnel can also be combined.

[0016] As shown in FIGS. 1 and 4, in the present invention, an opening and closing type water conduction gutter 20 is connected to the lower part of the water conduction gutter 10 extending in the vertical direction. FIG. 5 is a front view of the opening and closing type water conduction gutter 20 and its cross-sectional view taken along the line A - A. As shown in this FIG. 5, the opening and closing type water conduction gutter 20 has a structure in which one side of a water conduction plate 23 is supported by a hinge 22 attached to one corner member 21, and the opposite side of this water conduction plate 23 is brought into close contact with and fixed to the other corner member 24 by an anchor bolt 25. It is also preferable to use a transparent water conduction plate with an easily visible interior for this water conduction plate 23.

[0017] Fig. 6 shows an enlarged cross-section of the main part of the openable and closable water conduit 20 of the embodiment. The corner member 21 is an extruded member made of resin and has the cross-sectional shape shown in Fig. 7. That is, a recess 27 is formed on one side (the wall surface side) of the hollow portion 26, and a slit 28 is formed in the lateral direction on the opposite side. As shown in Fig. 5, the corner member 21 is fixed to the wall surface 14 by anchor bolts 25 at the four corners. However, since Fig. 6 is a cross-section taken along the line A-A of Fig. 5, the anchor bolts 25 are not shown. A spacer 29 having a sealing function is fitted into the recess 27.

[0018] One side piece 31 of the hinge 22 is fixed to the surface of the corner member 21 by a tapping screw 30, and the end portion of the water guide plate 23 is attached to the other side piece 32 of the hinge 22 by a tapping screw 30. On the back surfaces of both the left and right sides of the water guide plate 23, a water-stop rubber plate 33 for sealing between the corner members 21 and 24 is adhered. Further, in order to enhance the water-stop function, in this embodiment, a sealing flat plate 34 is fitted into the slit 28 of the corner member 21, and the other end of the sealing flat plate 34 protrudes slightly behind the other side piece 32 of the hinge 22 by a small distance. The sealing flat plate 34 is located at a position slightly lower than the surface of the corner member 21.

[0019] As shown in Fig. 6, the side of the water guide plate 23 opposite to the hinge 22 is closely fixed to the other corner member 24 by an anchor bolt 25. A nut 35 is fitted into the tip of this anchor bolt 25, and if this nut 35 is removed, the water guide plate 23 can be separated from the other corner member 24. Also, in the state where the nut 35 is tightened, the other end of the water guide plate 23 is in close contact with the surface of the corner member 24 due to the water-stop rubber plate 33 adhered to its back surface, and it has a structure that exhibits excellent water-stop performance.

[0020] Furthermore, the end of the water guide plate 23 on the hinge 22 side is slightly lower than the surface of one corner member 21, and the opposite end of the water guide plate 23 is placed on the surface of the other corner member 24. For this reason, if the heights of the left and right corner members 21 and 24 are made the same, the water guide plate 23 will not be parallel to the wall surface 14. Therefore, as in this embodiment, it is preferable to make the height of the spacer 29 on the back of the corner member 24 lower than the height of the spacer 29 on the back of the corner member 21, so that the water guide plate 23 is parallel to the wall surface 14.

[0021] The water intake system of the present invention, configured in this manner, normally directs leaking water flowing through a conventional water intake trough 10, as shown in Figure 4, towards a drainage facility 17 at the bottom of the structure. However, if the deposition of free lime is confirmed, the nut 35 can be loosened and removed, and the water intake plate 23 can be opened, as shown in Figures 8 and 9. Therefore, cleaning work inside the trough can be performed without the need for disassembly work as in the conventional method.

[0022] After closing the water guide plate 23, as shown in Figure 6, the tip of the water-stopping rubber plate 33 attached to the back surface of the water guide plate 23 will be in close contact with and crushed against the sealing plate 34 protruding from the corner member 21. Since this sealing plate 34 is provided along the entire length of the corner member 21, it can provide almost complete watertightness even at the hinge-side end of the water guide plate 23. Furthermore, even if there is a slight water leak near this sealing plate 34, as shown in Figure 1, it is installed close to the drainage facility 17 at the bottom of the structure, so it will not cause problems such as affecting passing vehicles.

[0023] While the height of the retractable water conduit 20 is arbitrary, considering the convenience of opening and closing it, a height of 0.5 to 1 meter is considered sufficient for practical purposes.

[0024] As described above, according to the present invention, when free lime precipitates, the inside of the openable and closable water conduit 20 can be easily cleaned, and moreover, a water conduit with excellent watertightness can be provided, thus meeting the demands of road administrators. [Explanation of Symbols]

[0025] 10. Water intake trough 11 Corner members 12 Corner members 13. Water guide plate 14 Wall surface 15 Anchor bolts 16 channels 17 Drainage facilities 20 Openable and closable water conduit 21 One corner member 22 Hinge 23 Water guide plate 24 Other corner member 25 Anchor bolts 26 Hollow part 27 recess 28 slits 29 Spacers 30 self-tapping screws 31 One side of the hinge 32 Other side piece of the hinge 33. Rubber sheet for sealing water 34 Flat plates for sealing 35 nuts

Claims

1. A water intake system installed on the wall surface of a structure to drain water leaking from the wall surface, At the bottom of the vertically extending water channel, the water channel plate is held at a predetermined distance from the wall surface by left and right corner members, A water supply system characterized by supporting one side of a water supply plate with a hinge attached to one corner member, and connecting an openable and closable water supply trough to which the opposite side of the water supply plate is tightly attached to the other corner member.

2. The water supply equipment according to claim 1, characterized in that water-sealing rubber plates are attached to the back surfaces of both the left and right sides of the water supply plate of the openable and closable water supply trough to seal the gap between it and the corner member.

3. The water supply equipment according to claim 2, characterized in that a sealing flat plate is provided protruding from the corner member on the hinge side at a position lower than its surface, which is in close contact with the water-stopping rubber plate.

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