Cold-resistant water guide gutter

Abstract

To provide a cold-resistant water guide gutter capable of suppressing freezing and clogging of a water passage part and having good maintenance workability.SOLUTION: A cold-resistant water guide gutter 10 comprises a hollow gutter body 11 attached to a wall surface of a structure and having a water-passing section 15 inside, a pair of pulleys 20 fixed to both longitudinal ends of the gutter body 11, a string-like body 30 suspended circumferentially around the pulleys 20 through the inside of the hollow gutter body 11, an inner surface cleaning member 40 attached to the string-like body 30 and moving inside the hollow gutter body 11, and a linear heater 50 that is drawn into the hollow gutter body 11 by the string-like body 30 in winter to prevent freezing.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cold-resistant water guide gutter that is installed on the wall of a structure such as a tunnel in order to guide water leaking from the wall of the structure to a drain. [Background technology]

[0002] The concrete walls of structures such as tunnels have joints for concrete construction. Groundwater that has penetrated into the concrete walls can freeze and cause cracks. Groundwater can then pass through the concrete walls through these joints and cracks and leak into the interior of the tunnel.

[0003] Conventionally, in order to drain such leaking water, a water guide pipe is attached to the wall of the structure to guide the leaking water into a drainage ditch. However, in cold regions, the inside of the water guide pipe can freeze in winter, making it difficult for the leaking water to flow. If the water flow inside the water guide pipe is poor, icicles, side ice, and icicles can form, which can pose a danger to people and cars passing through the tunnel, and can cause frost damage to the water guide pipe and concrete walls.

[0004] Patent Document 1 describes a cold-resistant water conveying device suitable for cold regions. This water conveying device has two plate members arranged at a distance from each other on the front side, and an insulating space layer is formed between the two plates to ensure insulating performance. However, even with this structure, especially near the tunnel entrance, freezing of the inside of the cold-resistant water conveying device due to the influence of low temperature outside air was sometimes not possible.

[0005] In addition to clogging due to freezing as mentioned above, the flow of water in the water conveyance section can also be impeded by free lime that precipitates from leaks, the proliferation of bacteria, etc. To remove these cloggings, for example, one possible method would be to remove multiple panels from the water conveyance section and clean the water conveyance section, but this takes time and effort, and there are problems with the workability of maintenance management. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2019-7296 A Summary of the Invention [Problem to be solved by the invention]

[0007] SUMMARY OF THE PRESENT INVETION It is an object of the present invention to provide a cold-resistant water guide culvert which solves the above-mentioned problems of the conventional art, can suppress freezing and clogging of water-passing sections, and has good maintenance workability. [Means for solving the problem]

[0008] In order to solve the above problems, a cold-resistant water-conducting gutter is provided which comprises a hollow gutter body which is attached to the wall surface of a structure and has a water-passing portion inside, a pair of pulleys fixed to both longitudinal ends of the gutter body, a string-like body which is hung so as to be able to rotate around these pulleys through the inside of the hollow gutter body, an inner surface cleaning member which is attached to the string-like body and moves inside the hollow gutter body, and a linear heater which is drawn into the hollow gutter body by the string-like body in winter to prevent freezing.

[0009] It is also preferable that the gutter body has a front panel portion facing the wall surface, the front panel portion being a transparent plate.

[0010] It is also preferable that the string-like body is provided with a tension adjusting member. Effect of the Invention

[0011] The present invention makes it possible to provide a cold-resistant water guide gutter that can suppress freezing and clogging of water-passing sections and has good maintenance workability. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a front view of the cold-resistant water guide gutter according to the embodiment. [Diagram 2] This is a schematic diagram showing the cold-resistant water guide gutter in use in winter, as seen from the direction A in FIG. [Diagram 3] FIG. 3 is a schematic diagram showing the cold-resistant water guide gutter of FIG. 2 in use in summer. [Figure 4] 3 is a schematic diagram showing an end portion of the gutter body as viewed from the direction B in FIG. 2. [Diagram 5] FIG. 2 is an enlarged partial cross-sectional view showing the ceiling-side pulley in the embodiment. [Figure 6] FIG. 4 is an enlarged partial cross-sectional view showing the ground side pulley in the embodiment. [Figure 7] 5 is a schematic diagram showing a procedure for attaching a linear heater to the cold-resistant water guide gutter of the embodiment. FIG. [Figure 8] FIG. 13 is an enlarged partial cross-sectional view showing an example in which a pulley is provided with its axis parallel to a wall surface. [Figure 9] 9 is a schematic diagram showing the ceiling side end of the gutter body in the embodiment shown in FIG. 8. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] (Overall structure) An embodiment of the invention is described below. As shown in Fig. 1 to Fig. 3, cold-resistant water guide gutter 10 is a hollow gutter attached to the wall surface W of a structure. Cold-resistant water guide gutter 10 of this embodiment is attached from a high point on the ceiling to a low point on the side wall of the wall surface W of a highway tunnel, and the hollow part facing the wall surface W serves as a water passage section 15 for draining leaking water.

[0014] In addition, Figures 2 and 3 show a cold-resistant water guide gutter 10 provided on the wall surface W on the left side in the longitudinal direction of the tunnel, but a similar cold-resistant water guide gutter 10 is also provided on the wall surface W on the right side in the longitudinal direction of the tunnel.

[0015] (Gutter body) The cold-resistant water guide gutter 10 of the embodiment includes a gutter body 11 configured by connecting a plurality of water guide gutter panels in a row.

[0016] 1 and 4, the gutter body 11 of the embodiment includes a front plate portion 12 facing the wall surface W, and a frame member 13 supporting the left and right ends of the front plate portion 12 in the figures, and is fixed to the wall surface W by anchor bolts 14 penetrating the frame member 13. This forms a hollow space between the front plate portion 12 and the wall surface W, forming a water passage portion 15 that guides water leaking from the wall surface W. A heat insulating material 16 may be disposed at the upper end of the gutter body 11 in contact with the front plate portion 12, as shown in FIG.

[0017] The front panel 12 is a water guide plate that forms the water passage section 15. In the embodiment, the front panel 12 is a transparent acrylic-modified high-impact polyvinyl chloride plate, and has excellent impact resistance. If the front panel 12 is a transparent plate, the state of the water passage section 15 can be visually confirmed from the outside of the gutter body 11, which is preferable.

[0018] Although the front panel portion 12 in the embodiment is configured from one transparent plate, the front panel portion 12 is not limited to this, and may be, for example, two transparent plates attached with a gap between them as described in Patent Document 1. Such a front panel portion 12 is preferable because it can further improve the thermal insulation performance of the gutter body 11 since a thermal insulation space layer is formed between the two transparent plates.

[0019] The frame member 13 of the embodiment includes a front panel support member 131 having a recess into which the front panel portion 12 is inserted, and a water-stopping member 132 arranged between the front panel support member 131 and the wall surface W, and is fixed to the wall surface W to keep the water-passing portion 15 watertight.

[0020] (pulley mechanism) As shown in Figures 1 to 3, a pair of pulleys 20 are fixed to both longitudinal ends of the gutter body 11. As shown in Figures 5 and 6, the pulleys 20 in this embodiment are fixed pulleys provided on the outside of both longitudinal ends of the gutter body 11. The pulleys 20 in this embodiment are fixed to a wall surface W using a pulley fixing bracket 21 and an anchor bolt 22.

[0021] The pulley fixing bracket 21 of the embodiment has a recess with a U-shaped cross section capable of accommodating the pulley 20. The pulley 20 of the embodiment shown in Figures 5 and 6 is rotatably supported within this recess with its axis C perpendicular to the wall surface W. An end of the pulley fixing bracket 21 is fixed to the wall surface W by an anchor bolt 22.

[0022] In this way, a configuration in which the pulley 20 is provided on the outside of the gutter body 11 is preferable because it facilitates the installation and maintenance of the cold-resistant water guide gutter 10. It also makes it easy to retrofit an existing water guide gutter with a pulley mechanism to turn it into a cold-resistant water guide gutter 10.

[0023] A string-like body 30, which is passed through the water-passing section 15 inside the gutter main body 11, is hung in a circular manner between these pulleys 20, and the pair of pulleys 20 and the string-like body 30 form a single pulley mechanism.

[0024] The string-like body 30 is a long member formed into a ring shape as a whole. In the embodiment, the string-like body 30 is configured using a metal wire rope with a diameter of 4 mm. If the string-like body 30 is a wire rope, it is preferable because it has excellent strength and weather resistance. The string-like body 30 is not limited to a metal wire rope, and other materials such as resin or fiber rope can also be used.

[0025] In the pulley mechanism of the embodiment shown in Fig. 1, the string-like body 30 going from the ground side to the ceiling side is wound around the pulley 20 on the ceiling side and is redirected from the ceiling side to the ground side. At the same time, the string-like body 30 is wound around the pulley 20 on the ground side and then connected to close the loop, so that the entire string-like body 30 becomes a ring. As a result, the string-like body 30 is arranged in two rows on the left and right sides of the pulley 20 when viewed from the front.

[0026] 1 and 4, the pulley 20 in this embodiment is provided with its axis C oriented perpendicular to the wall surface W, so that substantially the entire middle portion of the string-like body 30 is located inside the water-passing section 15. The arrangement of the pulley mechanism relative to the gutter body 11 is not limited to this. As will be described later, the pulley 20 can also be arranged so that its axis C is parallel to the wall surface W, with a portion of the string-like body 30 located outside the gutter body 11.

[0027] (Inner surface cleaning material) As shown in Figures 1 to 3, an inner surface cleaning member 40 is attached to the string-like body 30, which moves within the water passage section 15 as the string-like body 30 moves. Note that Figures 2 and 3 are schematic diagrams for easily illustrating the structure of the cold-resistant water guide gutter 10, and the sizes of the components in the figures are not to actual proportions.

[0028] The inner surface cleaning member 40 of the embodiment is a tube brush having a wire core and nylon bristles, and the bristles are in contact with the inner surface of the front panel portion 12. The shape and material of the inner surface cleaning member 40 are not limited to these, and various types of materials capable of cleaning the inner surface of the water passage portion 15 can be used.

[0029] When the string-like body 30 is pulled by an operator, the inner surface cleaning member 40 moves inside the water passing portion 15. The inner surface cleaning member 40 moves while rubbing the inner surface (the surface facing the water passing portion 15) of the front panel portion 12, and can remove dirt such as free lime that has formed inside the water passing portion 15.

[0030] It is preferable that the inner surface cleaning member 40 contacts at least the inner surface of the front panel portion 12. This makes it possible to maintain visibility when checking the state of the water passage portion 15 from the outside of the gutter body 11, when the front panel portion 12 is a transparent plate.

[0031] Furthermore, the inner surface cleaning member 40 may have a dimension that allows it to abut against both the front panel 12 and the wall surface W. As shown in Fig. 1, the width dimension of the inner surface cleaning member 40 is smaller than the width dimension in the short direction of the water passage portion 15, so even if the inner surface cleaning member 40 is in contact with both the front panel 12 and the wall surface W, it does not impede the flow of water in the water passage portion 15. Furthermore, the number of inner surface cleaning members 40 attached to the string-like body 30 may be one or more.

[0032] In the embodiment, the inner surface cleaning member 40 is used in a state where it is always attached to the string-like body 30. It is preferable that the inner surface cleaning member 40 is attached detachably to the string-like body 30. This makes it easy to replace the inner surface cleaning member 40, which is a consumable member.

[0033] (Line heater) A linear heater 50 for preventing freezing is detachably attached to the string-like body 30. As shown in Figs. 1 and 2, the linear heater 50 of the embodiment has a loop-shaped hanging fitting at one end. This hanging fitting is connected to a hook or the like provided at the middle part of the string-like body 30, so that the linear heater 50 is arranged along the string-like body 30. To prevent sagging of the linear heater 50, the middle part of the linear heater 50 may be fixed to the string-like body 30 by a plurality of stainless clips or binding members.

[0034] A commercially available antifreeze heater can be used as the linear heater 50. The linear heater 50 is preferably waterproofed. The linear heater 50 of the embodiment has a temperature self-regulating heating element inside, and the outer layer is covered with fluororesin. The other end of the linear heater 50 of the embodiment is provided with a power plug (not shown), which is connected to an outlet in the tunnel to supply electricity. The type of linear heater 50 is not limited to this, and various types can be used.

[0035] 1 and 2, it is preferable that the linear heater 50 has a length that can cover as much of the gutter body 11 as possible in the longitudinal direction. This makes it possible to more reliably prevent the inside of the water passage portion 15 from freezing.

[0036] Since the linear heater 50 is detachable from the string-like body 30, it can be removed from the cold-resistant waterproof gutter 10 during seasons other than winter when there is a risk of freezing, as shown in Fig. 3. During seasons when there is no risk of freezing, the removed linear heater 50 can be stored in a storage location of your choice, preventing deterioration of the linear heater 50. It also prevents waste of standby electricity, etc., caused by energizing the linear heater 50 all year round.

[0037] (Tension adjustment member) It is preferable that a tension adjusting member 60 for adjusting the tension of the string-like body 30 is provided at the middle portion of the string-like body 30. A turnbuckle 60 is attached as the tension adjusting member 60 to the string-like body 30 in the embodiment.

[0038] 1 to 3, the turnbuckle 60 of the embodiment has a shape with hooks on both ends, and is connected between the inner surface cleaning member 40 and the string-like body 30. In the embodiment, a hanging fitting at the end of the linear heater 50 is also connected to the hook of the turnbuckle 60.

[0039] (How to use) The method of using the cold-resistant water guide gutter 10 will now be described. First, the procedure for installing the linear heater 50 will be described with reference to Fig. 7. Note that Fig. 7 is a schematic diagram in which details are simplified in order to explain the installation procedure, and the size ratio and shape of each component differ from the actual ones.

[0040] In the embodiment, when the season where water may freeze arrives or approaches, the linear heater 50 is attached to the cold-resistant water guide gutter 10. At this time, the installer removes any one of the water guide gutter panels in a position that makes the work easy to perform, thereby providing an access opening for manipulating the string-like body 30 inside the gutter body 11. Next, of the two string-like bodies 30 on the left and right that face this access opening, as shown in Fig. 7(a), the string-like body 30 on the side equipped with the turnbuckle 60 (the right side in the figure) is pulled downward.

[0041] The string-like body 30 on the right side of the figure is pulled downward, and the hook at the bottom end of the turnbuckle 60 is lowered to the working opening, and the hanging fitting at the top end of the linear heater 50 is connected to this hook, as shown in Figure 7(b). In this state, when the string-like body 30 on the left side of the figure is pulled downward, the string-like body 30 on the right side of the figure moves upward. As a result, the linear heater 50 connected to the string-like body 30 on the right side of the figure rises inside the water-passing section 15 and is drawn into the inside of the gutter body 11.

[0042] As the linear heater 50 is pulled into the inside of the gutter body 11, the inner surface cleaning member 40 rises while rubbing the inner surface of the front panel portion 12, so that dirt such as free lime adhering to the inner surface of the front panel portion 12 can be removed.

[0043] As shown in Figure 7(c), when the inner surface cleaning member 40 reaches a position close to the pulley 20 on the ceiling side, the string-like body 30 is stopped. This allows the linear heater 50 to be positioned from the lower end to near the upper end of the gutter body 11, as shown in Figure 2. Next, the removed water-conducting gutter panel is reattached and the work opening is closed. The power plug of the linear heater 50 is connected to a power source and operated to heat the inside of the water-passing section 15 of the cold-resistant water-conducting gutter 10.

[0044] This makes it possible to suppress freezing inside the cold-resistant water guiding chute 10 and prevent frost damage such as icicles around the cold-resistant water guiding chute 10.

[0045] When winter ends and there is no longer any risk of water freezing, the linear heater 50 is removed using the same procedure as the installation procedure described above. This returns the string-like body 30, the inner surface cleaning member 40, and the turnbuckle 60 to the state in which they are arranged in the water passage section 15, as shown in Fig. 3. Even during the removal of the linear heater 50, the inner surface cleaning member 40 moves inside the water passage section 15 while rubbing the inner surface of the front panel section 12, so that the water passage section 15 can be cleaned.

[0046] The cleaning effect of the water passage section 15 can be improved by moving the inner surface cleaning member 40 up and down multiple times at any timing, such as before attaching the linear heater 50 or after removing the linear heater 50.

[0047] Furthermore, when the inner surface cleaning member 40 becomes worn out, it can be easily replaced by following a procedure similar to the procedure for attaching the linear heater 50 described above.

[0048] As described above, in the present invention, the water passage section 15 is heated in winter to more reliably prevent freezing, and the water passage section 15 can be automatically cleaned when the linear heater 50 is attached or detached. In addition, the water passage section 15 can be easily cleaned by raising and lowering the inner surface cleaning member 40 at any time. As a result, the present invention can improve the ease of maintenance of the cold-resistant water guide gutter 10.

[0049] (Other embodiments) 8 and 9, the pulley 20 can be oriented so that the axis C is parallel to the wall surface W. In this embodiment, the portion of the string-like body 30 on which the inner surface cleaning member 40 and the linear heater 50 are provided is located within the water-passing portion 15 of the gutter body 11, and the portion of the string-like body 30 not provided with these members is exposed to the outside of the gutter body 11.

[0050] In this embodiment, the inner surface cleaning member 40 can be moved up and down to clean the water passage section 15 by manipulating the string-like body 30 exposed on the outside of the gutter body 11. This makes it possible to move members such as the inner surface cleaning member 40 up and down without necessarily having to remove part of the water guide gutter panel, further improving the ease of maintenance work.

[0051] Although the present invention has been described above by taking the embodiment as an example, the present invention is not limited to the above embodiment and can be embodied in various forms. For example, the gutter body 11 may be a horizontal gutter. [Explanation of symbols]

[0052] 10 Cold-resistant water guide pipe 11 Gutter body 12 Front panel 13 Frame members 15 Water flow section 20 Pulley 21 Pulley fixing bracket 22 Anchor bolt 30 String-like body 40 Internal cleaning material 50 Linear heater 60 Tension adjustment member (turnbuckle)

Claims

1. A hollow gutter body attached to a wall surface of a structure and having a water passage therein; A pair of pulleys fixed to both ends of the gutter body in the longitudinal direction; A string-like body that is rotatably hung around these pulleys through the inside of the hollow gutter body; an inner surface cleaning member attached to the string-like body and moving inside the hollow gutter body; This cold-resistant water guide gutter is equipped with a linear heater that is pulled into the inside of the hollow gutter body by a string-like body in winter to prevent freezing.

2. 2. A cold-resistant water guide gutter according to claim 1, wherein the gutter body has a front panel portion facing the wall surface, the front panel portion being a transparent plate.

3. 3. A cold-resistant water guide gutter according to claim 1 or 2, wherein the string-like body is provided with a tension adjusting member.

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