Water stop device

Abstract

To provide a water cut-off device that enables compact storage while securing the necessary height of a water cut-off plate, and furthermore, allows quick and easy installation of the water cut-off plate.SOLUTION: A water cut-off device 1, including a water cut-off plate 10, a lifting mechanism 30 for raising or lowering the water cut-off plate 10, and a pair of guide mechanisms 20a, 20b that engage right and left sides of the water cut-off plate 10 to guide the rising or lowering of the water cut-off plate 10, in which the guide mechanisms 20a, 20b have first guide portions 221a, 221b that guide the water cut-off plate 10 that is erected in the installation position to rise while in an erected state, and second guide portions 222a, 222b that tilt the water cut-off plate 10 above the first guide portions 221a, 221b for guidance to the storage position, and in which the lifting mechanism 30 has lifting ropes 31a, 31b whose one ends are attached to the bottom of the water cut-off plate 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a waterstop device having a waterstop plate. [Background technology]

[0002] Because there is a risk of water flowing into the entrances of structures such as buildings, hospitals, subway stations, and underground parking lots due to torrential rains, typhoons, etc., it has been considered to use waterstops to prevent this from happening. A known conventional waterstop, as disclosed in Patent Document 1, for example, is a ceiling-retractable type in which the waterstop is provided so as to be freely raised and lowered by a chain and can be pulled up into the ceiling when not in use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 3-93820 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with conventional ceiling-retractable water stops, if the height was increased to ensure watertightness, the water stop would not fit completely within the ceiling, and the bottom of the water stop would protrude from the ceiling, which could make it difficult to enter or exit the structure.

[0005] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a waterstop device that allows compact storage while ensuring the required height of the waterstop, and further allows the waterstop to be installed quickly and easily. [Means for solving the problem]

[0006] The object of the present invention is to provide a water stop system comprising a water stop, a lifting mechanism for lifting and lowering the water stop, and a pair of guide mechanisms for engaging with both the left and right sides of the water stop to guide the lifting and lowering of the water stop, the guide mechanism comprising a first guide portion for guiding the water stop standing at an installation position to rise while remaining in the standing state, and a second guide portion for tilting the water stop above the first guide portion to guide it to a storage position, and the lifting mechanism comprising a lifting rope one end of which is attached to a lower portion of the water stop. The waterstops are arranged so that a plurality of them are stacked vertically at the installation position, and the lifting mechanism and the pair of guide mechanisms are individually provided corresponding to each of the waterstops. This is achieved by a water stop device.

[0008] The waterstop may be configured so that the surface side receiving water pressure faces downward by the second guide portion. Alternatively, the waterstop may be configured so that the surface side receiving water pressure faces upward by the second guide portion.

[0009] The waterstop is preferably guided along the first guide portion and the second guide portion by rollers.

[0010] The waterstop preferably includes a bottom waterstop material interposed between the waterstop plate and the installation surface, and the bottom waterstop material preferably has a protruding portion that protrudes toward the surface side that receives water pressure.

[0011] It is preferable that a counterweight is attached to the other end of the lift rope via a sheave. Effect of the Invention

[0012] According to the present invention, a waterstop device can be provided that allows for compact storage while ensuring the required height of the waterstop, and further allows the waterstop to be installed quickly and easily. [Brief description of the drawings]

[0013] [Figure 1] 1 is a front view of a water stopping device according to an embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] 3 is a cross-sectional view of FIG. 2 taken along line B-B. [Figure 4] 4 is a cross-sectional view of a main part of the waterproofing device shown in FIG. 3. [Diagram 5] 4 is a cross-sectional view for explaining the operation of the waterproofing device shown in FIG. 3. [Figure 6] FIG. 4 is a cross-sectional view of a water stopping device according to another embodiment of the present invention. [Figure 7] FIG. 11 is a front view of a water stopping device according to still another embodiment of the present invention. [Figure 8] 8 is a cross-sectional view taken along CC in FIG. 7 . [Figure 9] FIG. 9 is a cross-sectional view taken along the line DD in FIG. [Figure 10] FIG. 10 is an enlarged view of a main part of FIG. [Figure 11] 10 is a cross-sectional view for explaining the operation of the waterproofing device shown in FIG. [Figure 12] 7 is a plan view of a main portion showing a modified example of the waterproofing device shown in FIG. 6. [Figure 13] 4 is a cross-sectional view showing a modified example of the waterproofing device shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view of a water stop device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG. 2. As shown in FIGS. 1 to 3, the water stop device 1 includes a water stop plate 10, a pair of guide mechanisms 20a, 20b arranged on both the left and right sides of the water stop plate 10, and a lifting mechanism 30 for lifting the water stop plate 10. The water stop device 1 can be arranged to stop water from an entrance 93 formed in the front part between the pair of opposing side walls 91a, 91b in a structure including a pair of opposing side walls 91a, 91b that stand up so as to face each other from an installation surface F such as a floor surface on which the water stop plate 10 is installed, and a pair of front side walls 92a, 92b that are respectively connected to the front parts of the pair of opposing side walls 91a, 91b.

[0015] The waterstop 10 comprises a rectangular flat plate-shaped plate body 11, a bottom surface waterstop material 12 provided on the bottom surface of the plate body 11, and back surface waterstop materials 13a, 13b provided on both the left and right sides of the plate body 11. For example, a honeycomb panel in which an aluminum honeycomb-structured core material is covered with an aluminum plate can be used for the plate body 11, which allows for weight reduction while maintaining rigidity. A horizontally extending rod-shaped gripping portion 14 is supported by a bracket at the bottom of the front surface side (outdoor side) of the plate body 11 that receives water pressure, so as to protrude from the surface of the plate body 11.

[0016] The bottom water stop material 12 and the back water stop materials 13a, 13b are both strip-shaped or plate-shaped members made of rubber, resin, etc. The bottom water stop material 12 is provided over the entire left-right direction of the bottom surface of the plate body 11, and has a protruding portion 121 that protrudes beyond the front surface side of the plate body 11. The back water stop materials 13a, 13b are provided on both the left and right sides of the back surface of the plate body 11 over the entire up-down direction of the plate body 11.

[0017] The pair of guide mechanisms 20a, 20b include rectangular cylindrical casings 21a, 21b extending vertically, and guide rails 22a, 22b fixed to the inner walls of the casings 21a, 21b to guide the elevation of the waterstop 10. Note that while Fig. 3 is a cross-sectional view of one guide mechanism 20a, the other guide mechanism 20b has similar components as the one guide mechanism 20a arranged symmetrically to the one guide mechanism 20a, and therefore in Fig. 3, the reference numerals of the components of the other guide mechanism 20b that correspond to the components of the one guide mechanism 20a are written in parentheses.

[0018] The casings 21a, 21b have enlarged internal spaces formed at their upper portions to form enlarged portions 211a, 211b, and the enlarged portions 211a, 211b are connected to each other so that their internal spaces communicate with each other by a horizontally extending housing-like storage member 23. The casings 21a, 21b have their rear sides fixed to a pair of front side walls 92a, 92b, and the storage member 23 is disposed so as to span above the entrance 93.

[0019] The casings 21a, 21b have slits extending vertically on their opposing surfaces, into which both left and right ends of the waterstop 10 are inserted. On both the left and right sides of the waterstop 10, rotatably supported rollers 15a, 15b are provided so as to protrude laterally, and the waterstop 10 moves up and down along the guide rails 22a, 22b as the rollers 15a, 15b engage with grooves formed in the circumferential direction, causing the waterstop 10 to move up and down.

[0020] As shown in Figure 3, the guide rails 22a, 22b are provided with linear first guide portions 221a, 221b that guide the waterstop 10, which stands on the installation surface F in the installation position, to rise while remaining in an upright state, and arc-shaped second guide portions 222a, 222b that tilt the waterstop 10 above the first guide portions 221a, 221b so that the front side faces downward and guide it to a storage position within the storage member 23 (see Figure 1).

[0021] The lifting mechanism 30 includes lifting ropes 31a, 31b, sheaves 32a, 32b, and counterweights 33a, 33b arranged in the casings 21a, 21b of the pair of guide mechanisms 20a, 20b, respectively. The lifting ropes 31a, 31b are attached at one end to attachment parts 16a, 16b provided at both left and right ends of the waterstop 10. The other end of the lifting ropes 31a, 31b is attached to the counterweights 33a, 33b via sheaves 32a, 32b supported on the upper part of the inner wall of the casings 21a, 21b. The total weight of the counterweights 33a, 33b is set to be approximately the same as the weight of the lifting plate 10. The attachment parts 16a, 16b are provided below the center of the waterstop 10 in the vertical direction (height direction).

[0022] The casings 21a, 21b are provided with vertically standing strip-shaped abutment portions 24a, 24b inside. Cam members 17a, 17b are provided on the left and right surfaces of the waterstop 10, and cam members 25a, 25b are also provided on the lower part of the inner wall of the casings 21a, 21b that faces the cam members 17a, 17b. The waterstop 10 and counterweights 33a, 33b are disposed on both the front and back sides of the abutment portions 24a, 24b.

[0023] As shown in Fig. 4(a), the cam surfaces of the cam members 17a, 17b; 25a, 25b are inclined in the same direction with respect to the vertical direction, and when the waterstop 10 descends from the state shown in Fig. 4(a), the cam surfaces slide against each other, and the waterstop 10 moves in the direction of the arrow X. As a result, as shown in Fig. 4(b), when the waterstop 10 is installed on the installation surface F, the back surface waterstop materials 13a, 13b are in close contact with the abutment portions 24a, 24b, and the bottom surface waterstop material 12 of the waterstop 10 is in close contact with the installation surface F, enabling water to be stopped. The bottom surface waterstop material 12 has a protruding portion 121 that protrudes from the front surface side of the waterstop 10, so that when water accumulates on the front surface side of the waterstop 10 due to heavy rain or the like, the protruding portion 121 is pressed by water pressure, and the bottom surface waterstop material 12 is reliably in close contact with the installation surface F.

[0024] Engagement pieces 18a, 18b protruding toward the back surface are provided on both the left and right ends of the waterstop 10, and engagement holes 241a, 241b are formed in the lower parts of the abutment portions 24a, 24b. As shown in Figure 4(b), the engagement pieces 18a, 18b engage with the engagement holes 241a, 241b, thereby securely holding the waterstop 10 in the installed position.

[0025] According to the water stop device 1 having the above configuration, in a situation where water stopping is required, water can be stopped by setting the water stop 10 at the installation position as shown in Figs. 1 to 3. On the other hand, in a normal state where the water stop 10 is not used, the water stop 10 is raised in an upright state along the first guide parts 221a, 221b by holding the grip part 14 and lifting the water stop 10 upward, and then, as shown in Fig. 5, the water stop 10 is tilted along the second guide parts 222a, 222b and stored in the storage part 23 (see Fig. 1) in a substantially horizontal state. This makes it possible to make the storage space for the water stop 10 compact. Since the water stop 10 is balanced with the counterweights 33a, 33b, the water stop 10 can be easily lifted to the storage position with a small force. Since the lifting ropes 31a, 31b are attached to the lower part of the waterstop 10, which is below the center of gravity of the waterstop 10, the waterstop 10 can be tilted smoothly by the weight of the counterweights 33a, 33b.

[0026] When using the waterstop 10 stored in the storage position, the waterstop 10 can be quickly and easily set up in the installation position by pulling down the gripping portion 24 using a rod with a hook or the like to raise the waterstop 10 upright. Note that if the waterstop 10 can be securely stored and held in the storage position, the weight of the waterstop 10 may be made slightly greater than the total weight of the counterweights 33a, 33b, which allows the waterstop 10 to be set up more quickly and easily.

[0027] In this way, the waterstop device 1 of this embodiment, despite its simple and inexpensive configuration, allows for easy and reliable storage and installation of the waterstop 10, and even if the height of the waterstop 10 is increased, storage space can be reduced, preventing the waterstop 10 from obstructing entrances and exits 93, etc.

[0028] Although one embodiment of the present invention has been described above in detail, the specific aspects of the present invention are not limited to the above embodiment. For example, in this embodiment, the rollers 15a, 15b that guide the waterstop 10 along the first guide parts 221a, 221b and the second guide parts 222a, 222b are provided on the waterstop 10, but as shown in Fig. 6, the waterstop 10 may be guided by the first guide parts 221a, 221b and the second guide parts 222a, 222b consisting of a plurality of rollers 26a, 26b rotatably supported on the inner walls of the casings 21a, 21b. The rollers 26a, 26b that constitute the first guide parts 221a, 221b and the second guide parts 222a, 222b are spaced apart from each other along the guiding direction of the waterstop 10, and come into contact with the surfaces of both the left and right sides of the plate body 11 of the waterstop 10. In Fig. 6, components similar to those shown in Fig. 1 to Fig. 4 are given the same reference numerals (the same applies to the following figures). With this configuration, there is no need to provide rollers on the waterstop 10, so the weight of the waterstop 10 can be reduced and the waterstop 10 can be easily raised and lowered and installed. The first guide portion 221a in Fig. 6 may be configured to clamp the guided plate 19 extending out to the side of the waterstop 10 between rollers 26a, 26a, as shown in the plan view of the main part in Fig. 12, whereby the waterstop 10 can be smoothly raised and lowered.

[0029] In this embodiment, the waterstop 10 stored in the storage position is guided by the second guide parts 222a, 222b so that the surface side receiving water pressure faces downward. With this configuration, the storage position of the waterstop 10 is configured to protrude to the outdoor side, so that the reduction in indoor space due to the installation of the waterstop device 1 can be suppressed. On the other hand, if the protrusion to the outdoor side due to the installation of the waterstop device 1 is a problem, the second guide parts 222a, 222b may be formed in a curved shape toward the back side of the waterstop 10 (the right side in FIG. 13) as shown in FIG. 13, so that the waterstop 10 is stored so that the surface side receiving water pressure faces upward. Even with this configuration, the bottom waterstop material 12 and the back waterstop materials 13a, 13b of the waterstop 10 can be brought into close contact with the installation surface F and the abutment parts 24a, 24b, respectively, to perform reliable water stoppage.

[0030] In the lifting mechanism 30 of this embodiment, counterweights 33a, 33b are attached to the other end of the lifting ropes 31a, 31b that raise and lower the waterstop 10, but by providing a hoist instead of the counterweights 33a, 33b and operating the hoist manually or electrically, etc. to wind up and reel out the lifting ropes 31a, 31b, the waterstop 10 can be raised and lowered without touching it.

[0031] In addition, the water stop device 1 of this embodiment is configured so that a single water stop plate 10 can be raised and lowered, but it is also possible to provide multiple water stops 10 and arrange them so that they are stacked vertically at the installation position. In this configuration, the lifting mechanism 30 and the pair of guide mechanisms 20a, 20b are provided individually corresponding to the multiple water stops 10, so that each water stop plate 10 can be stored and installed individually and independently. With this configuration, it is possible to suppress the height of each water stop plate 10 to enable compact storage, while increasing the maximum water stop height. In addition, the number of water stops 10 to be installed can be appropriately selected according to the required water stop height.

[0032] Fig. 7 is a front view of a waterstop device according to another embodiment of the present invention, Fig. 8 is a cross-sectional view taken along line CC of Fig. 7, and Fig. 9 is a cross-sectional view taken along line DD of Fig. 8. As shown in Figs. 7 to 9, a waterstop device 1' includes two waterstop plates 10 arranged so as to overlap one above the other at the installation position, a lifting mechanism 30 that lifts and lowers each waterstop plate 10 individually to guide it, and a pair of guide mechanisms 20a, 20b.

[0033] The guide mechanisms 20a, 20b are provided with two guide rails 22a, 22b to individually correspond to each waterstop 10. The specific configurations of each waterstop 10, each guide rail 22a, 22b, and each lifting mechanism 30 are similar to the configurations of the waterstop 10, the guide rails 22a, 22b, and the lifting mechanism 30 shown in Figures 1 to 4, so in Figures 7 to 9, the same components as those shown in Figures 1 to 4 are given the same reference numerals and detailed description will be omitted.

[0034] As shown in Fig. 9, the thickness of the upper waterstop 10 of the two waterstops 10 installed at the installation position is set to be smaller than that of the lower waterstop 10, and the entire floor surface waterstop material 12 provided on the upper waterstop 10 is in close contact with the upper surface of the lower waterstop 10, thereby stopping water in this portion. Also, as shown in Fig. 10, the two counterweights 33a, 33a arranged vertically in the casing 21a are configured such that the upper counterweight 33a has a through hole 331a and a balance hole 332a so that they can be raised and lowered without interfering with each other, and the lifting rope 31a attached to the lower counterweight 33a extends upward through the through hole 331a.

[0035] In the waterstop device 1' shown in Figures 7 to 9, the two waterstop plates 10 are installed in the installation position, and then the upper waterstop plate 10 is lifted and stored in the storage position as shown in Figure 11(a), and then the lower waterstop plate 10 is lifted and stored in the storage position as shown in Figure 11(b), so that the two waterstop plates 10 can be tilted approximately horizontally and stored in a stacked state. In this way, the two waterstop plates 10 can be stored in a compact manner while increasing the maximum waterstop height. The number of waterstop plates 10 may be three or more, and can be configured in the same manner as the waterstop device 1' described above. [Explanation of symbols]

[0036] 1. Water stop device 10 Waterstop 12 Bottom water stopper 121 Protrusion 15a, 15b Roller 20a, 20b Guide mechanism 221a, 221b First guide part 222a, 222b Second guide part 26a, 26b Laura 30 Lifting mechanism 31a, 31b Ascending rope 32a, 32b Sieve 33a, 33b Counterweight

Claims

1. The water stop is provided with a water stop plate, a lifting mechanism for lifting and lowering the water stop plate, and a pair of guide mechanisms for engaging with the left and right sides of the water stop plate to guide the lifting and lowering of the water stop plate, The guide mechanism includes a first guide portion that guides the water stop plate, which stands at the installation position, to rise while remaining in the upright state, and a second guide portion that tilts the water stop plate above the first guide portion and guides it to a storage position, The lifting mechanism includes a lifting rope having one end attached to a lower portion of the waterstop, The water stop plates are arranged so that multiple plates are stacked one on top of the other at the installation position, A water stopping device in which the lifting mechanism and the pair of guide mechanisms are individually provided corresponding to each of the water stopping plates.

2. The water stop device according to claim 1 , wherein the water stop is guided by the second guide portion so that a surface side receiving water pressure faces downward.

3. The water stop device according to claim 1 , wherein the water stop is guided by the second guide portion so that the surface side receiving the water pressure faces upward.

4. The water stop device according to claim 1 , wherein the water stop plate is guided along the first guide portion and the second guide portion by rollers.

5. The water stop plate has a bottom water stop material interposed between the bottom water stop plate and the installation surface, The water-stopping device according to claim 1 , wherein the bottom water-stopping material has a protruding portion that protrudes toward a surface side that receives water pressure.

6. 6. A water stop device according to claim 1, wherein a counterweight is attached to the other end of the lifting rope via a sheave.

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