JP6184079B2 - Waterproof board device - Google Patents

Description

  The present invention relates to a waterproof board device that prevents water from entering a building or the like from a passage.

  When a road or the like is submerged during heavy rain or flooding, water invades the buildings and parking lots around it and damage increases. At this time, if a passage that leads to a building, a parking lot, or the like is provided with a means for preventing water from entering, the damage can be reduced. From such a point of view, there is a waterproof board device that is installed in the passage and makes it possible to prevent infiltration of a predetermined amount or more of water.

  Conventionally, various waterproof board devices have been proposed. For example, there is a waterproof board device as disclosed in Patent Document 1. In the waterproof plate device (waterproof device) described in Patent Document 1, a water collecting bucket is disposed inside a water collecting pit that is a groove dug down from the road surface, and further accommodated as a groove dug down to a different position on the road surface. The pit is provided with a plate-shaped waterproof board (waterproof board) that can project and retract with respect to the pit. This water collecting bucket and waterproof plate are constructed so that they are attracted to each other by a lifting chain and sprocket, and in normal times the waterproof plate is housed inside the receiving pit, and the weight of the waterproof plate is set slightly heavier than the water collecting bucket Thus, the balance is made so that the upper end of the waterproof plate is flush with the road surface. On the other hand, at the time of flooding, water accumulates in the water collection bucket, and the water collection bucket is lowered by being heavier than the waterproof board by the weight of the water, and the waterproof board is raised so as to be pulled. As the waterproof plate rises, the waterproof plate protrudes from the road surface so as to block at least a part of the passage, and further water intrusion is prevented.

Japanese Patent No. 4644734

  However, since the waterproof board device as described in Patent Document 1 raises the waterproof board without using a power source such as electricity and stops water, the waterproof board is used as a sealing material by using electric power. It is not possible to employ water-stopping improvement means such as pressing. Further, due to the nature of the waterproof board device, it is not preferable to require a step of manually increasing the waterproofness of the waterproof board during a flood or the like.

  Then, this invention makes it a subject to provide the waterproof board apparatus which can raise the water stop when a waterproof board raises more easily in view of such a problem.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

The invention according to claim 1 is a waterproof plate (20) formed so as to be able to block water by rising from the road surface, and a waterproof plate accommodation pit (2b) formed below the road surface so as to accommodate the waterproof plate. A water collecting pit (2a) that is provided in a passage in which a waterproof board accommodating pit is formed and is formed so that water can flow in, and a weight of water stored in the water collecting pit disposed in the water collecting pit. The water collecting bucket (19) that can be raised and lowered in the water collecting pit, the transmission mechanism that raises and lowers the waterproof board based on the raising and lowering of the water collecting bucket, the waterproof board A seal member that contacts at least a part of one surface, and pressing means (21, 24) that are paired by a receiving member that is disposed on the pressing member and the waterproof plate and is paired with the pressing member. The means is at least one of a pressing member and a receiving member It has an inclined surface that inclines with respect to the lifting and lowering direction of the waterproof plate, and the waterproof plate is pushed against the seal member by the inclined surface being pressed by the pressing member and the receiving member in contact with the posture in which the waterproof plate is raised most. A plurality of pressing means (21, 24) are provided, and at least one of the pressing means, the pressing member (22) is provided on the wall surface of the waterproof board accommodating pit (2b), and the waterproof board is raised most In the posture, the pressing member (22) and the receiving member (23) are in contact with each other at the lower end portion of the waterproof plate, and at least one other pressing means is provided in the casing in which the pressing member (25) is erected on the left and right sides of the passage. The pressing member (25) and the receiving member (26) are in contact with each other at a position above the half of the waterproof board in a posture in which the waterproof board is raised most , and the other pressing means includes the transmission mechanism and the left-right direction. Same position Provided a waterproof plate device (1).

The invention according to claim 2 is the waterproof board device (1) according to claim 1 , wherein the distance between the pressing member (22) of one pressing means (21) and the receiving member (23) is the other pressing force. The distance between the pressing member of the means (24) and the receiving member is the same.

The invention according to claim 3 is the waterproof board device (1) according to claim 1 or 2 , wherein the pressing means (24) is one of the pressing member and the receiving member (26) inclined with respect to the vertical direction. The other side (25) includes a wheel (25b) that rolls in contact with the inclined surface.

According to a fourth aspect of the present invention, in the waterproof board device (1) according to any one of the first to third aspects, the transmission mechanism (31) allows the waterproof board (20) to rise, and the waterproof board is lowered. Means (42) for limiting

The invention according to claim 5 is the waterproof board device (1) according to claim 4 , wherein the transmission mechanism (31) is a chain (32) for connecting the waterproof board (20) and the water collecting bucket (19). And a sprocket (36) that engages with the chain and rotates, and the means for restricting the lowering of the waterproof plate is engaged with the teeth of the sprocket to restrict the lowering of the waterproof plate.

According to a sixth aspect of the present invention, in the waterproof plate device (1) according to the fourth or fifth aspect , the transmission mechanism (31) includes a means (43) for restricting the rise of the waterproof plate, and the lowering of the waterproof plate. A means (44) for switching between a means (42) for restricting the rise and a means for restricting the rise of the waterproof plate.

  According to the present invention, the rising force of the raised waterproof plate is converted into the force by which the waterproof plate is pressed against the sealing material by the pressing member, so that high water stoppage can be automatically secured without requiring power such as electricity. Is possible.

It is a perspective view of the channel | path in which the waterproof board apparatus 1 concerning one form was installed, Fig.1 (a) shows the state by which the channel | path was opened, FIG.1 (b) shows the state by which a part of channel | path was closed. ing. 2A is a front view of the waterproof board device 1 viewed from the direction indicated by IIa in FIG. 1, and FIG. 2B is a rear view of the waterproof board device viewed from the direction indicated by IIb in FIG. . It is channel | path entrance / exit side sectional drawing along the line shown by III-III in Fig.1 (a). It is a figure of the attitude | position which the waterproof board raised from the same viewpoint as FIG. It is a figure explaining the 2nd pressing means. It is the figure which looked at the 2nd guide sprocket 36 and control sprocket 41 from the upper part. It is the figure which looked at the waterproof board control means 40 from the channel | path exit side. 8A is a view for explaining one posture of the waterproof board control means 40, and FIG. 8B is a view for explaining another posture of the waterproof board control means 40. FIG. It is the figure which looked at the waterproof board deceleration means 50 from the passage exit side. FIG. 10A is a view for explaining one posture of the waterproof plate speed reducing means 50, and FIG. 10B is a view for explaining another posture of the waterproof plate speed reducing means 50. FIG. 11A is a diagram for explaining one posture of the water flow detection sensor 60, and FIG. 11B is a diagram for explaining another posture of the water flow detection sensor 60. It is a figure explaining one scene when water flows in into the waterproof board apparatus.

  The above-described operation and gain of the present invention will be clarified from embodiments for carrying out the invention described below. Hereinafter, the present invention will be described based on embodiments shown in the drawings. However, the present invention is not limited to the embodiment.

FIG. 1 is a perspective view showing a state in which a waterproof board device 1 according to one embodiment is installed in a passage. 1A shows a posture in which the waterproof plate 20 is housed in the waterproof plate accommodation pit 2b (see FIG. 3) and the passage is opened. FIG. 1B shows the waterproof plate 20 from the waterproof plate accommodation pit 2b. This represents a posture in which a part of the passage is closed so as to protrude.
2A is a view of the waterproof board device 1 viewed from the direction indicated by the arrow IIa in FIG. 1A, that is, the passage entrance side, and FIG. 2B is illustrated by the arrow IIb in FIG. It is the figure which looked at the waterproof board apparatus 1 from the direction, ie, a channel | path exit side.
FIG. 3 is a cross section in the passage direction of the waterproof board device 1 along the vertical line indicated by the alternate long and short dash line III-III in FIG.
FIG. 4 is a cross-sectional view of the same viewpoint as FIG. 3 and shows a posture in which the waterproof board 20 is raised.
The waterproof board apparatus 1 is demonstrated referring FIGS. 1-4 and each figure shown suitably. In FIGS. 1 to 4 and each drawing referred to in the following description, the members are appropriately seen through for explanation. Moreover, in each figure, some members may be omitted for easy viewing of the figure. In this embodiment, the diagonally lower left side of FIGS. 1A and 1B and the left side of FIGS. 3 and 4 represent the passage entrance side, and the opposite side represents the passage exit side. Accordingly, FIG. 2A is a view of the waterproof board device 1 seen from the passage entrance side, and FIG. 2B is a view of the waterproof board device 1 seen from the passage exit side. Here, in the event of a flood, water enters from the entrance side of the passage.

The waterproof board device 1 includes a passage opening / closing part 2, a mechanism housing part 3, and an alarm device part 4. As can be seen from FIG. 1 and FIG. 2, the mechanism accommodating portion 3 is provided so as to be opposed to each other at one end and the other end of the passage opening / closing portion 2. In this embodiment, the alarm device unit 4 is arranged on one mechanism housing unit 3.
As can be seen from FIGS. 1A and 1B, the waterproof board device 1 is installed in a passage formed between the walls. Specifically, the passage opening / closing portion 2 is embedded in the road surface forming the passage, and the mechanism housing portion 3 is disposed on each of the walls forming the passage. As a result, during normal times, the passage is opened as shown in FIG. On the other hand, at the time of flooding or the like, the waterproof plate 20 can be lifted as shown in FIG. 1B to close a part of the passage to prevent further intrusion of water. Hereinafter, each part which comprises the waterproof board apparatus 1 is demonstrated in detail.

  As shown in FIGS. 1 to 4, the passage opening / closing part 2 includes a bottom plate 10, partition members 11, 12, 13, 14, 15, a water intake groove 16, a water guide member 17, a drainage means 18, a water collection bucket 19, A waterproof plate 20, a first pressing member 21, and a second pressing member 24 are provided. As described above, the passage opening / closing part 2 is buried under the road surface of the passage, and therefore, each member constituting the passage opening / closing part 2 is basically buried except for some members.

  The bottom plate 10 and the partition members 11 to 15 are plate-like members, and the bottom plate 10 forms a bottom portion of the passage opening / closing portion 2, and the partition plates 11 to 15 are erected on the bottom plate 10 to form a predetermined box shape. A space (water collecting pit 2a, waterproof board accommodating pit 2b described later) is formed.

  As can be seen from FIG. 2, the partition members 11, 12 are both ends of the bottom plate 10 in the left-right direction (the direction orthogonal to the passage in / out direction, the left-right direction in FIG. 2, the back / front direction in FIG. 3, FIG. 4). It is erected so that each of the surfaces faces each other. Thereby, a box-shaped left-right direction wall part is formed. The partition members 11 and 12 are positioned below the wall forming the passage and the mechanism accommodating portion 3.

  As can be seen from FIGS. 3 and 4, the partition members 13, 14, 15 extend in the left-right direction of the waterproof board device 1 and have a predetermined interval in the passage entrance / exit direction so that the plate surfaces face each other. Arranged to line up. In this embodiment, the partition member 13, the partition member 14, and the partition member 15 are arranged in this order from the passage entrance side to the passage exit side. Thus, the partition member 13 forms a wall on the passage entrance side of the predetermined space, and the partition member 15 forms the wall on the passage exit side of the predetermined space, and the partition member 14 partitions the space therebetween.

  A water collection pit 2 a is formed by the space surrounded by the bottom plate 10, the partition members 11 and 12, the partition member 13, and the partition member 14. Further, the waterproof board accommodating pit 2 b is formed by the space surrounded by the bottom plate 10, the partition members 11 and 12, the partition member 14, and the partition member 15.

Here, as shown in FIGS. 3 and 4, a seal member 27 a extending in the left-right direction is arranged on the passage exit side upper portion of the wall surface of the waterproof board accommodation pit 2 b. As will be described later, when the waterproof plate 20 is lifted by the seal member 27a, the lower surface of the waterproof plate 20 is pressed against the seal member 27a and watertightness is taken.
Further, as shown in FIGS. 2A, 2B, 3, and 4, the seal members 27b and 27c extending upward are in the same position in the passage entrance / exit direction as will be described later. It is provided in each of the housings 30 to be operated. As a result, when the waterproof plate 20 is raised, the surface of the waterproof plate 20 is pressed against the sealing members 27b and 27c to ensure watertightness.
Accordingly, the lower end portion and the left and right end portions of the passage exit side of the waterproof plate 20 are pressed against the seal members 27a, 27b, and 27c to prevent water leakage from the passage entrance side to the passage exit side with the waterproof plate 20 interposed therebetween. Yes.

  The upper end opening of the water collecting pit 2a is disposed so as to cover the lid member 28, and forms a part of the passage surface. A plurality of convex portions are preferably formed on the road surface side of the lid member 28. Thereby, slip of a pedestrian or a vehicle is prevented.

The water intake groove 16 is a member having a predetermined cross section and extending in the left-right direction of the waterproof board device 1 as shown in FIG. 3 and FIG. The intake groove 16 includes an intake groove body 16a and a grating 16b. The intake groove main body 16a is a member having a groove-shaped cross section, and is arranged with the groove-shaped opening facing upward. The grating 16b is a groove lid in which a synthetic resin material, a metal material, or the like arranged so as to cover the opening of the intake groove main body 16a is assembled in a lattice shape.
Such a water intake groove 16 is disposed closer to the passage entrance than the partition member 13. The intake groove 16 leads to a wastewater treatment facility (not shown).

As shown in FIGS. 3 and 4, the water guide member 17 is a plate-like member disposed along the upper end surface of the partition member 13 so that the plate surface thereof faces in the up-down direction. The passage entrance side end of the water guide member 17 is disposed so as to communicate with the intake groove main body 16a, and the passage exit end of the water guide member 17 is disposed so as to extend to the water collecting pit 2a. Thereby, the water conduit 17a leading from the intake groove main body 16a to the water collecting pit 2a is formed.
By the water guide member 17, the water overflowing from the intake groove 16 can be efficiently guided to the water collecting pit 2a. The water guide member 17 is preferably formed of stainless steel or steel.

The drainage means 18 is a means for draining water that has flowed into the bottom of the water collecting pit 2a. Accordingly, one end of the drainage means 18 passes through the bottom plate 10 and communicates with the water collecting pit 2a, and the other end communicates with an external wastewater treatment facility. Further, a backflow prevention valve 18a, which is a valve for preventing backflow, is arranged in the middle of the water to prevent water from flowing into the water collecting pit 2a from the drainage means 18.
Thereby, it is suppressed that water retains in the water collection pit 2a, and the descent force of the water collection bucket 19 is prevented from being attenuated. The operation of the waterproof board device 1 will be described in detail later.
In this embodiment, the bottom plate 10 is penetrated to drain from the bottom of the water collecting pit 2a. However, the present invention is not limited to this, and the partition member may be penetrated to drain from the side.

  The water collection bucket 19 is a container for storing water that has flowed into the water collection pit 2a, and has a cross section shown in FIGS. 3 and 4 and has a waterproof plate as shown in FIG. 2 (a). The device 1 has a box shape having a bottom portion extending in the left-right direction and having an open top. The water collection bucket 19 is accommodated in the water collection pit 2a, and can be raised and lowered in the water collection pit 2a. That is, the water collection bucket 19 is formed slightly smaller than the water collection pit 2a in the left-right direction of the waterproof board device 1, and water can flow into the inside from the upper opening and can be stored. ing.

A hole 19 a that functions as a drainage hole penetrating the inside and outside of the water collection bucket 19 is provided at the bottom of the water collection bucket 19. In this embodiment, as can be seen from FIG. 2A, two holes 19a are provided at each of the left and right end portions.
By providing the hole 19a, it is possible to prevent the waterproof board 20 from moving up and the waterproof board 20 from rising when not intended. That is, when water has flowed into the water collection bucket 19 for some reason, or when water has flowed into the water collection bucket 19 for a long time with a small flow rate, the hole 19a is not provided as a result. A predetermined amount of water is stored in the water bucket 19. This may cause the waterproof board device 1 to operate when not intended. On the other hand, the water that has flowed into the water collection bucket 19 in this manner can be drained from the water collection bucket 19 by providing the hole 19a. Accordingly, it is possible to prevent the waterproof plate from rising when not intended. Details will be described later.

  The total area of the holes 19a can be adjusted in consideration of the user's wishes, the circumstances of the drainage facility in the place where it is used, and the like. That is, the inflow of water into the water collection bucket 19 having a predetermined flow rate or less determined based on these circumstances and the like is discharged from the hole 19 a without being stored in the water collection bucket 19. On the other hand, for the inflow of water having a flow rate exceeding this, water is stored in the water collection bucket 19 due to the inflow amount exceeding the drainage capacity through the hole 19a. At this time, the number, position, and form of the holes are not particularly limited, but for example, a plurality of holes may be provided at distant positions in view of the fact that the holes are blocked by the inflowing foreign matter or the like and do not function. Preferably, the diameter of each hole is also secured to a predetermined size or more. In addition, drainage by making a hole in the side portion of the partition member is possible, but the position of the hole is preferably the bottom from the viewpoint of good drainage efficiency.

  Further, a weight 19 b may be disposed in the water collection bucket 19. Thereby, the raising timing of the waterproof board 20 can be adjusted. If the weight 19b is made heavy, the waterproof plate 20 can be raised even if the amount of water stored in the water collecting bucket 19 is small compared to when it is light.

  In addition, a seal member 19 c may be disposed at the upper edge of the water collection bucket 19. The seal member 19c is attached so as to close a gap between the water collection bucket 19 and the inner wall surface of the water collection pit 2a. As a result, it is possible to further suppress water from entering the gap between the water collection bucket 19 and the water collection pit 2a and collecting water in the water collection pit 2a.

The waterproof plate 20 is a thick plate-like member that can block water by closing a part of the passage in the raised posture, and has the cross section shown in FIGS. 3 and 4. ) Extends in the left-right direction of the waterproof board device 1.
The waterproof plate 20 includes a waterproof plate main body 20a that serves as a dam plate for blocking water, and a steel plate lid member 20b that is fixed to the upper end of the waterproof plate main body 20a and forms a part of the road surface.

  The inside of the waterproof board body 20a is formed of a lightweight foam panel having a certain level of strength, such as polystyrene foam, and the entire surface of the foam panel is covered with a thin plate material having corrosion resistance and strength, such as a stainless steel plate. It is formed by wearing. Thus, the waterproof board 20 is made lighter because a foam panel having a small weight and a specific gravity is used inside the waterproof board body 20a. Thereby, as will be described later, it is possible to reduce the force required to suspend the waterproof plate 20 so as to be raised and lowered. Moreover, since the surface of the foam panel is covered with a harder plate material, it is possible to prevent damage to the foam panel.

  Here, an example in which a foam panel is used for the waterproof board main body 20a is shown, but it does not prevent other materials from being used, and for example, a honeycomb core material can be used. According to this, the strength can be improved.

  The lid member 20b is a steel plate-like member that is fixed to the upper end portion of the waterproof board main body 20a and becomes a part of the road surface. It is preferable that a plurality of convex portions are formed on the road surface side of the lid member 20b. Thereby, slip of a pedestrian or a vehicle is prevented. In addition, it is preferable that the board used for the cover member 20b is a striped plate steel plate, and it is desirable to form with the same material as the thin plate material of the above-mentioned waterproof board main body 20a.

  Among such waterproof plates 20, the waterproof plate body 20a is disposed in the waterproof plate accommodation pit 2b so as to be able to project and retract from the waterproof plate accommodation pit 2b. That is, the waterproof board main body 20a has an attitude in which the entirety of the waterproof board body 20a is accommodated in the waterproof board accommodation pit 2b (FIG. 3), and an attitude in which a part thereof is accommodated in the waterproof board accommodation pit 2b and the other part projects into the passage. (FIG. 4).

  Further, the lid member 20b covers the waterproof board main body 20a so as to cover the opening of the waterproof board accommodation pit 2b as shown in FIG.

  Here, the waterproof plate 20 is configured to be heavier than the total weight of the water collection bucket 19 (including the weight 19b), a connection bracket 37 described later, and the moving sprocket 38. As a result, as will be described later, the waterproof plate 20 can be appropriately accommodated inside the waterproof plate accommodation pit 2b in a normal state.

The first pressing means 21 includes a pressing member 22 and a receiving member 23. As can be seen from FIG. 3 and FIG. 4, the pressing member 22 is disposed at the upper part of the passage entrance side in the wall surface of the waterproof board accommodating pit 2 b. The pressing member 22 has a portion that inclines toward the upper side of the passage exit side. That is, it has a portion that is inclined with respect to the elevation direction of the waterproof plate 20.
On the other hand, the receiving member 23 is disposed in the lower portion of the waterproof plate 20 on the passage entrance side. Similarly to the pressing member 22, the receiving member 23 has an inclined portion.
As can be seen from FIG. 4, the pressing member 22 and the receiving member 23 are disposed at positions where the inclined portions at the lower end of the waterproof plate 20 overlap each other in the posture in which the waterproof plate 20 is raised. Thereby, in the posture in which the waterproof board 20 is raised, the first pressing means 21 presses the waterproof board 20 toward the passage exit side by the action of contact between the inclined parts.

The second pressing means 24 includes a pressing member 25 and a receiving member 26. FIG. 5 shows the second pressing means 24. 5A is a view seen from the same viewpoint as FIG. 3 while paying attention only to the pressing member 25, and FIG. 5B is a view in which the pressing member 25 receives the waterproof board 20 in the posture in which the waterproof plate 20 is raised as in FIG. It is a figure showing the scene which is contacting the member.
As can be seen from FIGS. 5A and 5B, the pressing member 25 includes a wheel 25b that rotates about a shaft 25a. The shaft 25a is fixed to a housing 30 to be described later, directly or via another member, and the axial center direction is the left-right direction of the waterproof board 20. Therefore, the wheel 25b is arranged so as to be able to turn in a plane including the passage entrance / exit direction.
On the other hand, as can be seen from FIG. 5 (b), the receiving member 26 is configured such that a portion that comes into contact with the pressing member 25 in a posture in which the waterproof plate 20 is raised is an inclined surface. In other words, the waterproof board 20 has a surface that is inclined with respect to the raising and lowering direction. As can be seen from FIG. 2B, such a receiving member 26 is disposed on each of the end faces in the left-right direction of the waterproof board 20.

When the waterproof plate 20 is lifted as indicated by Va in FIG. 5 (b), the pressing member 25 and the receiving member 26 come into contact with the wheel 25b of the pressing member 25, and the effect of the wedge is illustrated. A force acts as shown by Vb in 5 (b), and the waterproof plate 20 can be pressed toward the passage exit side. At this time, since the pressing member 25 side has the wheel 25b, the resistance given to the movement of the waterproof plate 20 after the contact between the pressing member 25 and the receiving member 26 can be suppressed, and smoother operation is achieved. Is possible.
In addition, the second pressing means 24 is arranged so that both are in contact with each other above half of the waterproof board 20 in the posture in which the waterproof board 20 is most raised.

  Here, as can be seen from FIG. 4, the first pressing member 21 and the second pressing member 24 are in contact with the pressing members 22 and 25 and the receiving members 23 and 26 at substantially the same timing when the waterproof plate 20 is in the most elevated position. It is preferable to do. Thereby, the waterproof board 20 can be smoothly moved to the passage exit side. Therefore, the distance between the pressing member 22 and the receiving member 23 may be the same as the distance between the pressing member 25 and the pressing member 26. Moreover, in that case, it is preferable that one presses the lower end part of the waterproof board 20, and the other presses the site | part which becomes above half of the waterproof board 20. Thereby, the waterproof board 20 can be more uniformly pressed against the sealing material.

  Next, the mechanism housing part 3 will be described. As described above, the mechanism housing portion 3 is provided at each of the left and right end portions of the passage opening / closing portion 2 and is provided on a wall forming the passage. Therefore, as can be seen from FIGS. 1 and 2, two mechanism accommodating portions 3 are provided. However, since the basic structure of the two mechanism accommodating parts 3 is the same, only one mechanism accommodating part 3 is demonstrated here.

The mechanism housing unit 3 includes a housing 30 and a transmission mechanism 31 that is housed in the housing 30.
The housing 30 is a member that forms an outer shell of the mechanism housing portion 3, and is configured to be able to include the transmission mechanism 31 on the inside thereof by being shaped like a box. Therefore, the housing 30 is formed by combining plate-like members.

The transmission mechanism 31 is a mechanism having a function of associating the water collecting bucket 19 and the waterproof plate 20 with each other and associating with each other. That is, it is a mechanism that connects the waterproof plate 20 and the water collection bucket 19 and converts the force that the water collection bucket 19 descends into the force that the waterproof plate 20 rises. The transmission mechanism 31 is also provided with means for improving the convenience of the user with respect to the rising of the waterproof board 20.
In this embodiment, the transmission mechanism 31 includes a lifting chain 32, a first guide sprocket 35, a second guide sprocket 36, a connection bracket 37, a moving sprocket 38, a waterproof plate control means 40, and a waterproof plate reduction means 50.

The lifting chain 32 functions as a force transmission member, and is a chain that transmits the force between the water collecting bucket 19 and the waterproof plate 20 so as to interlock with each other. In each figure, the lifting chain 32 is indicated by a thick broken line for easy viewing. One end of the lifting chain 32 is fixed to the housing 30 by a fixing member 34. Therefore, the movement of the end portion fixed by the fixing member 34 is restricted. On the other hand, the other end of the lifting chain 32 is fixed to the lateral side surface of the waterproof plate 20 by a fixing member 33. Accordingly, the other end of the lifting chain 32 moves up and down in the same manner as the rising and lowering of the waterproof plate 20. In this embodiment, the fixing member 33 is formed integrally with the receiving member 26.
Further, between both ends of the lifting chain 32 is held in the housing 30 by being wound around a first guide sprocket 35, a second guide sprocket 36, and a moving sprocket 38 which will be described later.

The first guide sprocket 35 is a sprocket gear in which a plurality of teeth that can be engaged with the lifting chain 32 are formed on the outer periphery. Accordingly, the first guide sprocket 35 is rotatable about the center thereof, and the shaft is fixed to the housing 30 and the movement is restricted. Therefore, the first guide sprocket 35 is arranged so as to be able to rotate while being fixed at a predetermined position of the housing 30.
Further, the first guide sprocket 35 is disposed above the waterproof plate 20, and the height position (the vertical position in FIG. 3 and FIG. 4) of the first guide sprocket 35 allows the waterproof plate 20 to be placed even when the waterproof plate 20 is in the most elevated position. This is a position where it can be held by the lifting chain 32. On the other hand, the position of the first guide sprocket 35 in the passage entrance / exit direction (the position in the left-right direction in FIG. 3 and FIG. 4) is not particularly limited. It is preferable that one end side of the suspension chain 32 extends vertically downward from the right side in FIG. 4 and that one end is fixed to the waterproof board 20. According to this, it becomes possible to pull up the waterproof board 20 directly, and the waterproof board 20 can be moved more smoothly up and down.

Similar to the first guide sprocket 35, the second guide sprocket 36 is a sprocket gear in which a plurality of teeth that can be engaged with the lifting chain 32 are formed on the outer periphery. Accordingly, the second guide sprocket 36 can be rotated about the center thereof, and the shaft is fixed to the housing 30 and the movement is restricted. Therefore, the second guide sprocket 36 is arranged so as to be able to rotate while being fixed at a predetermined position of the housing 30.
The second guide sprocket 36 is disposed on the passage entrance side with respect to the first guide sprocket 35, and the height position thereof is substantially the same as that of the first guide sprocket 35.

  The connection bracket 37 is a plate-like member fixed to the side surface in the left-right direction of the water collection bucket 19, and a moving sprocket 38 is disposed on the connection bracket 37.

  The moving sprocket 38 is a sprocket gear in which a plurality of teeth that can be engaged with the lifting chain 32 are formed on the outer periphery. Accordingly, the movable sprocket 38 is rotatable about the center thereof, and the shaft is fixed to the connection bracket 37.

  As described above, the water collection bucket 19 is arranged to be movable up and down, so that the connection bracket 37 and the moving sprocket 38 can also move up and down following the water collection bucket 19.

  A lifting chain 32 is hung on the first guide sprocket 35, the second guide sprocket 36, and the moving sprocket 38 described above. That is, the lifting chain 32 is hung from the upper side with respect to the first guide sprocket 35 and the second guide sprocket 36 between the passage entry end and the passage exit end of the lifting chain 32. On the other hand, the moving sprocket 38 is hung so as to be placed on the lifting chain 32 between the second guide sprocket 36 and the passage entry side end of the lifting chain 32. Thereby, the moving sprocket 38, the connecting bracket 37, and the water collecting bucket 19 are hung so as to be hooked on the lifting chain 32.

The waterproof board control means 40 functions as a means for restricting the lowering of the waterproof board 20, a means for restricting the ascent of the waterproof board 20, and a means for switching between them. In this embodiment, the waterproof plate control means 40 includes a control sprocket 41, a waterproof plate lowering limit arm 42, a waterproof plate rising limit arm 43, a switching operation means 44, and a cover 45 containing at least a part of these. The limit arm and the lift limit arm are in contact with different teeth.
FIG. 6 shows a view of the portion of the second guide sprocket 36 from above in FIG. 3, and a view in which the control sprocket 41 appears as a result. In FIG. 7, the figure which looked at the waterproof board control means 40 from the channel | path exit side was shown. FIG. 8 is a diagram for explaining a portion of the waterproof board control means 40 that is concealed by the cover 45. FIG. 8A shows one posture of the waterproof board control means 40, and FIG. 8B shows another posture of the waterproof board control means 40.

  The control sprocket 41 is a sprocket gear in which a plurality of teeth similar to those of the second guide sprocket 36 are formed on the outer periphery. As can be seen from FIG. 6, the control sprocket 41 is coaxial with the second guide sprocket 36 and is disposed on the side opposite to the housing 30 side (passage side) from the second guide sprocket 36. The control sprocket 41 is configured to interlock with the second guide sprocket 36. Accordingly, the second guide sprocket 36 and the control sprocket 41 are in a relationship in which if one of them rotates, the other also rotates, and if one of the rotations is restricted, the other rotation is restricted. In FIGS. 3 and 4, the control sprocket 41 is omitted in order to explain the second guide sprocket 36.

  The waterproof plate lowering restriction arm 42 includes a first arm 42a, a second arm 42b, and a locking projection 42c. The first arm 42a and the second arm 42b are plate-like members extending in one direction, and as can be seen from FIG. 8, the first arm 42a and the second arm 42b are connected to each other in an approximately L shape. Is formed. A locking projection 42c that protrudes in a direction orthogonal to the direction in which the first arm 42a extends is provided at the end of the first arm 42a opposite to the side connected to the second arm 42b. The waterproof plate lowering restriction arm 42 is rotatable about a shaft 40a provided at the intersection of the first arm 42a and the second arm 42b formed in the substantially L shape, and is formed by an elastic member 42d. It is energized. Here, as can be seen from FIG. 7, the locking projection 42 c also extends to the housing 30 side to a position where it can engage with the second guide sprocket 36.

  The waterproof plate ascent restriction arm 43 includes a first arm 43a, a second arm 43b, and a locking projection 43c. The first arm 43a and the second arm 43b are plate-like members extending in one direction. As can be seen from FIG. 8, the first arm 43a and the second arm 43b are connected to each other at one end side so as to be substantially L-shaped. Is formed. A locking projection 43c that protrudes in a direction orthogonal to the direction in which the first arm 43a extends is provided at the end of the first arm 43a opposite to the side connected to the second arm 43b. The waterproof plate ascent restriction arm 43 is rotatable about a shaft 40a provided at the intersection of the first arm 43a and the second arm 43b formed in the substantially L shape, and is formed by an elastic member 43d. It is energized. Here, as can be seen from FIG. 7, the locking protrusion 43 c also extends to the housing 30 side to a position where it can engage with the control sprocket 41. Further, the second arm 43b also extends to the housing 30 side to a position where it can engage with the switching operation means 44.

  As can be seen from FIG. 8, the switching operation means 44 includes a substrate 44a, a rotating shaft 44b, and an eccentric member 44c. The substrate 44a is a plate-like member, and the rotation shaft 44b is disposed so as to penetrate in the plate thickness direction. A groove for rotating the rotation shaft 44b is provided on one side of the rotation shaft 44b as shown in FIG. Further, the substrate 44a is provided with an eccentric member 44c at a site separated by a predetermined distance from the rotation shaft 44b. In this embodiment, the eccentric member 44c is a columnar member, and is formed so as to protrude from the substrate 44a in the direction of the housing 30 and the opposite side as can be seen from FIG. The protrusion amount is adjusted so as to be able to engage with the second arms 42b and 43b, as will be described later.

  The cover 45 encloses and hides the waterproof plate lowering restricting arm 42, the waterproof plate raising restricting arm 43, and the switching unit 44 from the wall of the housing 30 and also covers one side of the rotating shafts 40a and 44b. It functions as a bearing. Therefore, the cover 45 is formed of a plate-like member.

The constituent members as described above are combined as follows to form the waterproof board control means 40. As can be seen from FIGS. 7 and 8, the waterproof plate lowering limit arm 42 and the waterproof plate ascent limiting arm 43 are arranged coaxially with the rotation shaft 40 a in this order from the housing side 30. The waterproof plate lowering restriction arm 42 and the waterproof plate raising restriction arm 43 are attached to the rotating shaft 40a so as to be interlocked with each other. Therefore, if one of the two rotates about the rotation shaft 40a, the other rotates following the same. In this embodiment, the rotation shaft 40 a is disposed on the passage entrance side from the second guide sprocket 36 and the control sprocket 41.
At this time, in the waterproof plate lowering restriction arm 42, the first arm 42a extends from the rotation shaft 40a below the second guide sprocket 36, the locking projection 42c protrudes toward the second guide sprocket 36 side, and the second arm 42a. The arm 42b is arranged on the entrance side of the passage so as to face upward. Further, the waterproof plate lowering restriction arm 42 is urged by the elastic member 42d in the direction in which the engaging protrusion 42c faces the second guide sprocket 36.
On the other hand, in the waterproof plate ascending restriction arm 43, the first arm 43a extends upward from the rotation shaft 40a, the locking projection 43c protrudes toward the control sprocket 41 side, and the second arm 43b extends toward the passage entrance side. It arrange | positions and it arrange | positions so that it may extend toward the channel | path entrance side from the rotating shaft 40a. Further, the waterproof plate ascent restriction arm 43 is urged in the direction in which the engaging projection 43c is directed toward the control sprocket 41 by the elastic member 43d.

  The board 44a of the switching operation means 44 is disposed between the waterproof plate lowering restricting arm 42 and the waterproof plate raising restricting arm 43 from the viewpoint shown in FIG. 7, and is located above the second arm 43b from the viewpoint shown in FIG. It arrange | positions at the channel | path entrance side of the two arms 42b. As can be seen from FIG. 7, the switching operation means 44 can be rotated by a rotation shaft 44 b disposed so as to pass the housing 30 and the cover 45 as bearings. Accordingly, the substrate 44a is rotated following the rotation of the rotation shaft 44b, whereby the eccentric member 44c is rotated so as to revolve around the rotation shaft 44b.

  Next, the operation of the waterproof board control means 40 will be described. Each structural member provided in the waterproof board control means 40 includes each of the above-described components and is disposed, but further detailed configurations and arrangements are adjusted within a range in which the operation described below can be realized. Is done.

First, the posture shown in FIG. 8A, that is, the posture in which the locking protrusion 43 c of the waterproof board ascent restriction arm 43 is locked to the control sprocket 41 will be described. At this time, the eccentric member 44c of the switching operation means is disposed on the exit side of the passage from the rotation shaft 44b, and presses the second arm 42b. As a result, the first arm 42a is rotated downward and the locking projection 42c is detached from the second guide sprocket 36. Since the first arm 43a and the second arm 43b are coaxially attached to the rotation shaft 40a, the first arm 43a and the second arm 43b rotate about the rotation shaft 40a, and the engagement protrusion 43c shown in FIG. Engage with. As described above, since the first arm 43a is biased by the elastic member 43d, the engaging protrusion 43 is locked in a state of being pressed by the control sprocket 41.
At this time, the locking projection 43c rotates against the biasing force of the elastic members 42d and 43d against the rotation of the control sprocket 41 in the direction VIIIa so that the first arm 43a rotates in the VIIIb direction around the rotation shaft 40a. The control sprocket 41 is configured to be able to move and allows the control sprocket 41 to rotate in the direction VIIIa. On the other hand, the locking projection 43c is configured to be locked to the sprocket teeth of the control sprocket 41 and restrict the rotation of the control sprocket 41 in the direction VIIIc with respect to the rotation of the control sprocket 41 in the direction VIIIc. ing. The configuration for that is not particularly limited, but it is possible by adjusting the locking position and locking angle of the locking projection 43c to the sprocket teeth, or adjusting the tip shape of the locking projection 43c. Become.

Next, the posture shown in FIG. 8B, that is, the posture in which the locking projection 42c of the waterproof plate lowering restriction arm 42 is locked to the second guide sprocket 36 will be described. To change from the posture shown in FIG. 8A to the posture shown in FIG. 8B, the eccentric member 44c is rotated below the rotation shaft 44b by rotating the rotation shaft 44b. Let Thereby, it becomes the attitude | position which the eccentric member 44c presses the 2nd arm 43b. As a result, the first arm 43a is turned to the passage entrance side, and the locking projection 43c is detached from the control sprocket 41. Since the first arm 42a and the second arm 42b are coaxially attached to the second arm 43b and the rotation shaft 40a, the first arm 42a and the second arm 42b rotate about the rotation shaft 40a, and the engagement protrusion 42c is connected to the second guide sprocket 36. Lock to. As described above, since the first arm 42a is urged by the elastic member 42d, the engaging protrusion 42c is locked in a state of being pressed by the second guide sprocket 36.
At this time, the locking projection 42c has the first arm 42a with respect to the rotation of the second guide sprocket 36 in the direction VIIId against the urging force of the elastic members 42d and 43d. The second guide sprocket 36 is allowed to turn in the direction VIIId. On the other hand, the locking protrusion 42c is locked to the sprocket teeth of the second guide sprocket 36 to rotate the second guide sprocket 36 in the direction VIIIf. Configured to restrict. The configuration for this is not particularly limited, but can be achieved by adjusting the locking position and angle of the locking projection 42c to the sprocket teeth, or adjusting the tip shape of the locking projection 42c.

The waterproof board speed reducing means 50 is a means for reducing the speed at which the waterproof board 20 rises and preventing the waterproof board 20 from rising suddenly. In this embodiment, the waterproof plate reduction means 50 includes a swing plate 51, a reduction sprocket 52, an operation means 53, a guide 54, and a cover 55 that includes at least a part of these.
In FIG. 9, the figure which looked at the waterproof board deceleration means 50 from the channel | path exit side was shown. FIG. 10 is a view for explaining a portion concealed by the cover 55 of the waterproof plate speed reducing means 50. FIG. 10A shows one posture of the waterproof plate speed reducing unit 50, and FIG. 10B shows another posture of the waterproof plate speed reducing unit 50.

  The oscillating plate 51 is a plate-like member that is long in one direction, and a slit 51a is provided on one end side along the longitudinal direction. The width of the slit 51a is such that an eccentric member 53c of the operation means 53 described later can move in the slit 51a.

  The speed reduction sprocket 52 is a sprocket gear having a plurality of teeth formed on the outer periphery, like the second guide sprocket 36 and the like. As can be seen from FIGS. 9 and 10, the deceleration sprocket 52 is rotatably attached to the center of the swing plate 51 in the longitudinal direction. The deceleration sprocket 52 is provided with a resistance means (not shown) so as to resist the rotation. Accordingly, when the deceleration sprocket 52 is rotated, a force against this acts. The specific form of the resistance means is not particularly limited, and known means can be used. An example of this is a rotary damper. In this case, the rotary damper may be built in the speed reduction sprocket or arranged coaxially. In addition to the rotary damper, it is possible to control the rotational force in one direction, and the other side is a member that has a structure that normally uses rotational force, or a member that converts rotational force into a linear force. It is also possible to combine members that control the linear force, such as an absorber. It is also possible to control each of the ascending speed and the descending speed by controlling the rotational force of the first sprocket and the second sprocket, or to control both simultaneously.

  As can be seen from FIGS. 9 and 10, the operating means 53 includes a substrate 53a, a rotating shaft 53b, and an eccentric member 53c. The substrate 53a is a plate-like member, and the rotation shaft 53b is disposed so as to penetrate in the plate thickness direction. A groove for rotating the rotation shaft 53b is provided on one side of the rotation shaft 53b as shown in FIG. Further, the substrate 53a is provided with an eccentric member 53c at a portion separated from the rotation shaft 53b by a predetermined distance. In this embodiment, the eccentric member 53c is a cylindrical member, and is formed so as to protrude from the substrate 53a toward the housing 30 as can be seen from FIG.

  The guide 54 is a member having an L-shaped cross section and a predetermined length, and is supported from the opposite side so that the lifting chain 32 does not escape when the deceleration sprocket 52 is engaged with the lifting chain 32 as will be described later. To do.

  The cover 55 encloses and conceals the above-described members with the wall of the housing 30 and functions as a bearing on one side of the rotation shaft 51b of the swing plate 51 and the rotation shaft 53b of the operation means. To do. Therefore, the cover 55 is formed of a plate-like member.

The constituent members as described above are combined as follows to form the waterproof plate speed reducing means 50.
The swing plate 51 is fixed to the housing 30 so as to be rotatable (swingable) about the rotation shaft 51b at the end opposite to the side where the slit 51a is provided. On the other hand, the end portion on the side provided with the slit 51a is disposed so as to extend upward from the rotation shaft 51b side. The deceleration sprocket 52 is fixed to the swing plate 51 so as to be rotatable. In this embodiment, the speed reduction sprocket 52 is fixed to the surface of the swing plate 51 on the housing 30 side as can be seen from FIG.

  The substrate 53a of the operation means 53 is disposed on the opposite side of the casing 30 from the swing plate 51 from the viewpoint shown in FIG. The substrate 53a can be rotated by a rotation shaft 53b disposed so as to pass the housing 30 and the cover 55 as bearings. Further, the eccentric member 53 c protrudes from the substrate 53 a toward the housing 30 and is disposed so as to penetrate the slit 51 a of the swing plate 51. Accordingly, the substrate 53a rotates following the rotation of the rotation shaft 53b, and thereby the eccentric member 53c rotates so as to revolve around the rotation shaft 53b. Further, the swinging plate 51 swings around the rotation shaft 53b following the change in the position by the rotation of the eccentric member 53c.

  As can be seen from FIGS. 9 and 10, the guide 54 is arranged on the exit side of the passage with a predetermined distance from the speed reduction sprocket 52, and is arranged so that the lifting chain 32 passes between the speed reduction sprocket 52 and the guide 54. The Therefore, the guide 54 is arranged so that the longitudinal direction extends in the vertical direction. Further, as described above, the guide 54 is L-shaped in cross section, so that one piece thereof is arranged so as to overlap the case 30 and fixed to the case 30, and the other piece is separated from the case 30. Stand up.

  Next, the operation of the waterproof plate speed reducing means 50 will be described. Each structural member provided in the waterproof plate speed reducing means 50 includes each of the above-described configurations and is disposed, but further detailed configurations and arrangements are adjusted within a range in which the operation described below can be realized. Is done.

First, the posture shown in FIG. 10A will be described. At this time, the eccentric member 53c of the operation means 53 is arranged on the exit side of the passage from the rotation shaft 53b, and holds the swing plate 51 so as to be close to the lifting chain 32. As a result, the speed reduction sprocket 52 is engaged with the lifting chain 32, and the speed reduction sprocket 52 rotates as the lifting chain 32 moves. Further, since the standing piece of the guide 54 is provided so as to face the speed reduction sprocket 52, it is ensured that the lifting chain 32 is prevented from escaping to the opposite side when the speed reduction sprocket 52 is engaged with the lifting chain 32. Engagement takes place.
Thereby, when the lifting chain 32 moves because the waterproof plate 20 moves up, the speed reduction sprocket 52 can be rotated to reduce the moving speed of the lifting chain 32. Accordingly, it is possible to prevent the sudden rise of the waterproof board 20.

  Next, the posture shown in FIG. 10B will be described. To change from the posture shown in FIG. 10A to the posture shown in FIG. 10B, the eccentric member 53c is rotated below the rotary shaft 53b by rotating the rotary shaft 53b. Let As a result, the eccentric member 53 moves in the slit 51 a and rotates the swing plate 51 in the direction separating the lifting plate 51 from the lifting chain 32. Accordingly, the speed reduction sprocket 52 is also separated from the lifting chain 32 and released from its engaged state. Thereby, the deceleration function can be canceled (invalidated).

  Here, the above example has been described as the waterproof plate speed reducing means. However, the waterproof plate speed reducing means may be in other forms as long as it acts against the force by which the waterproof board rises and can suppress the rising speed of the waterproof board. . For example, a rotating shaft of the first sprocket 35, the second sprocket 36, and the moving sprocket 37 described above, or a means that serves as a resistance may be disposed between the waterproof plate 20 and the waterproof plate accommodation pit 2b.

Returning to FIGS. 1 to 4, the alarm device unit 4 will be described. The alarm device unit 4 is a part having a function of issuing an alarm prior to the rise of the waterproof board 20 in order to prevent an unexpected situation from occurring due to the rise of the waterproof board 20 without notice.
In this embodiment, the alarm device unit 4 is provided so as to be superimposed on the upper part of one mechanism housing unit 3 and includes a water flow detection sensor 60, a control unit 70, a speaker 80, and a rotating lamp 81.

  The water flow detection sensor 60 is a sensor that detects the flow rate of water flowing into the water collection bucket 19 and provides information to the control means 70. In this embodiment, the water flow detection sensor 60 is installed in the water conduit 17a as shown in FIGS. FIG. 11 is a perspective view of the water flow detection sensor 60. FIG. 11A shows the posture of the water flow detection sensor 60 in a scene where there is no water flow flowing in the water conduit 17a, and FIG. 11B shows the posture of the water flow detection sensor 60 in a scene where water flows in the water conduit 17a. Represents. As can be seen from FIG. 11, the water flow detection sensor 60 includes an electrical proximity switch 61, a shaft 62, a flap 63, and an opening sensing plate 64.

The electrical proximity switch 61 is provided so that the part 61a including the permanent magnet and the part 61b including the reed switch face each other, and is configured to transmit an electric signal when the part 61b detects the magnetic force from the part 61a. Switch. The transmitted signal is transmitted to the control means 70 through the wiring 61c. In this embodiment, the electrical proximity switch 61 is installed adjacent to the water conduit 17a. As will be described later, the electrical proximity switch 61 functions as a means for detecting the rotation of the shaft 62 and converting it into an electrical signal.
In the present embodiment, the sensor for detecting magnetism is used as described above, but the present invention is not limited to this, and other forms may be used. That is, any device can be used as long as it can convert the movement of the flap subjected to the water flow into an electrical signal. An optical sensor such as a photoelectric tube sensor can be used for the non-contact type, and a general-purpose microswitch can be used for the contact type. . It is also possible to use an encoder device that directly connects the rotation of the shaft.

  The shaft 62 is a shaft member that crosses the water conduit 17a and reaches the electric proximity switch 61, and is formed so as to be rotatable about an axis.

  The flap 63 is a plate-like member, and its upper end is fixed to the shaft 62 and is disposed so as to close the water conduit 17a.

  The opening sensing plate 64 is a member arranged so as to cover the portion 61 b including the reed switch of the electric proximity switch 61, and is fixed to the shaft 62. Accordingly, the flap 63 and the opening sensing plate 64 are formed coaxially via the shaft 62 and rotate in conjunction with each other. Here, the aperture sensing plate 64 is formed of a ferromagnetic material (a substance that is attracted to the magnet).

  Such a structural member is arranged as shown in FIG. 11A in a scene where there is no water flow in the water conduit 17a. That is, the flap 63 is positioned so that its plate surface is substantially vertical and closes the water conduit 17a. On the other hand, the opening sensing plate 64 is disposed so as to cover the part 61b including the reed switch. That is, in this posture, the magnetic force from the part 61a including the permanent magnet does not reach the part 61b including the reed switch, and thus an electric signal is not transmitted.

On the other hand, when there is a water flow in the water conduit 17a, the flap 63 tilts as shown in FIG. As a result, the opening sensing plate 64 also rotates in conjunction with the shaft 62, the opening sensing plate 64 is detached from the part 61b, and the part 61b detects the magnetic force from the part 61a.
The angle at which the flap 63 is inclined varies depending on the flow rate of water flowing through the water conduit 17a. That is, the inclination of the flap 63 is small when the flow rate is small, and the inclination of the flap 63 is large when the flow rate is large. Since a situation where an alarm should be issued is a case of a large flow rate, it is preferable that a signal is not generated from the water amount detection sensor 60 when the flow rate is small. Therefore, the opening sensing plate 64 can be configured such that the reed switch senses a magnetic force and emits a signal when the flap 63 is inclined at a predetermined angle or more.

  Further, when there is no water flow in the water conduit 17a, the flap 63 returns to the state shown in FIG. 11A and returns to the state where no electrical signal is generated.

  According to the present embodiment, the example in which the sensor is operated by rotating the shaft has been described. However, the sensor is not necessarily rotated, and for example, the sensor may be operated by moving or swinging in a predetermined direction.

  According to such a sensor, it is possible to easily and efficiently measure the flow rate of a water flow having a free surface that flows through the water conduit 17a and flows into the water collecting pit 2a. In that case, the water flow can be monitored over a long period of time with limited power, and the operation of the sensor can be maintained. In addition, the water flow detection sensor 60 operates only when a certain amount of water passes and automatically returns due to its own weight, so that it can be installed in a sealed environment. Furthermore, according to the water flow detection sensor 60, it does not operate when wet or submerged, and only senses the water flow in the set direction, thereby preventing malfunction. Also, from the viewpoint of structure, the water flow detection sensor 60 has a simple structure with only the reed switch as the electrical component, so it can reduce the cause of failure and failure as much as possible, and it will be the output of a non-voltage contact by the reed switch. Unlike a sensor that outputs a general pulse signal, the circuit configuration can be simplified because the output is ON / OFF.

  Returning to FIG. 3 and FIG. 4, the control means 70 will be described. The control means 70 receives a signal from the water flow detection sensor 60, calculates whether to issue an alarm based on this received signal, and operates the operation signal for the speaker 80 and the rotating lamp 81 which are the means for actually issuing the alarm. It has a function to transmit. Therefore, for example, the control unit 70 includes a receiving unit, a central operator (CPU) as a calculation unit, a storage unit storing a program that is a basis for calculation by the calculation unit, a RAM as a calculation work area, and a calculation result. Output means for outputting is provided.

Here, the receiving means is connected to the wiring 61c of the water flow detection sensor 60, and receives a signal from the water flow detection sensor 60. Further, in this embodiment, the calculation means makes a determination to issue an instruction to issue an alarm when a signal from the water flow detection sensor 60 is received, for example, for a predetermined time or more (for example, 3 seconds or more) based on the program stored in the storage means. To do. As a result, it is possible to reduce the false alarms and ensure the alarm. When a calculation result indicating that an alarm should be issued is obtained, an operation is instructed to the speaker 80 and the rotating lamp 81 via the output means.
As such a control means 70, an electric circuit etc. can be mentioned, for example.

  The speaker 80 and the rotating lamp 81 function as notification means and are means for actually issuing (notifying) an alarm, and are connected to the output means of the control means. The speaker 80 emits an alarm by sound, and the rotating lamp 81 emits an alarm by light.

  Next, operation | movement of the waterproof board apparatus 1 comprised as mentioned above is demonstrated. As shown in FIG. 3, in the waterproof board device 1, the water collecting bucket 19 is disposed at the upper part of the water collecting pit 2 a in a normal state, and the entire waterproof board body 20 a of the waterproof board 20 is in the waterproof board housing pit 2 b. It is installed so that it will be in the state accommodated in. That is, since the operation of the water collecting bucket 19 and the waterproof plate 20 is determined by being balanced by the weight via the transmission mechanism 31, the waterproof plate is used as described above in order to obtain the posture shown in FIG. The weight of 20 is configured to be heavier than the total weight of the water collection bucket 19 (including the weight 19b), the connecting bracket 37, and the moving sprocket 38. According to the posture of FIG. 3, since the passage is open, it does not hinder the passage of people or cars. In addition, since the grating 16b and the lid members 28 and 20b are configured so that there is as little step as possible on the road surface, comfortable travel is achieved.

  When the water level increases due to the increase in water accompanying rainfall or the like, the water level in the intake groove main body 16a also changes accordingly. Here, when the water level is lower than the road surface and lower than the height position of the water guide member 17 though the water level rises due to water increase due to rainfall or the like during normal times or from the road surface through the grating 16b. Water such as rainwater that has flowed into the intake groove main body 16a is discharged from a drain outlet (not shown) to a wastewater treatment facility such as a sewer pipe. That is, in such a case, water is not stored in the water collection bucket 19 and its weight does not change, so the water collection bucket 19 does not move downward. Therefore, the posture as shown in FIG. 3 can be maintained. At this time, since there is no running water in the water guide path 17a, the flap 63 of the water flow detection sensor 60 is not rotated, so that no alarm is issued.

If the water level increases due to an increase in rainfall, etc., the water level in the intake groove main body 16a also changes accordingly. Here, when the water level rises due to the water increase and becomes higher than the height position of the water guide member 17, the water such as rainwater that has flowed into the intake groove body 16a from the road surface through the grating 16b is indicated by an arrow A in FIG. As such, it flows on the water guide member 17, moves in the water guide path 17 a, and flows into the water collection bucket 19.
However, when the amount of inflow is small and not enough to raise the waterproof plate 20, the amount of water is below the predetermined flow rate as described above. The entire amount of water flows out from the hole 19a, and water does not stay in the water collecting bucket 19. Further, the water flowing out from the hole 19 a of the water collecting bucket 19 is drained by the draining means 18 as indicated by an arrow C. Therefore, the waterproof board 20 is maintained in the same posture as normal without rising.
At this time, the flap 63 of the water flow detection sensor 60 is rotated by the flowing water, but since the flow rate is small and the inclination is small, the reed switch 61b does not operate and does not transmit a signal. Therefore, the alarm device unit 4 does not issue an alarm.

  On the other hand, when a larger flow rate flows into the water collection bucket 19 due to the increase in water due to flooding or the like, the amount of water flowing into the water collection bucket 19 exceeds the amount of drainage through the holes 19 a, and water is stored in the water collection bucket 19. To do.

  Here, as described above, the operation of the water collecting bucket 19 and the waterproof plate 20 is determined by being balanced by the weight via the transmission mechanism 31. When the water is stored, the sum of the weight of the water collection bucket 19, the connecting bracket 37, the moving sprocket 38, and the weight of the stored water is configured to be heavier than the weight of the waterproof plate 20. As a result, when the stored water that has flowed into and stored in the water collection bucket 19 reaches a predetermined weight as described above, the weight exceeds the weight of the waterproof plate 20, and the water collection bucket 19 is placed in the water collection pit 2a. Descend. Then, due to the downward force of the water collecting bucket 19, the moving sprocket 38 is lowered substantially vertically together with the water collecting bucket 19 through the connection bracket 37 while rotating.

  By this lowering, the moving sprocket 38 is rotated clockwise from the viewpoint of FIG. 3, the first guide sprocket 35 and the second guide sprocket 36 are rotated counterclockwise, and the fixing member 34 and the second guide sprocket The portion of the lifting chain 32 that is between 36 becomes longer and is pulled downward.

  As the lifting chain 32 is pulled down in this way, the end of the lifting chain 32 to which the waterproof plate 20 is attached is pulled up, and the waterproof plate 20 is raised following this, as shown in FIG. Go up into the aisle. As a result, the waterproof plate 20 prevents water from entering the passage.

  According to such a transmission mechanism 31, since the lifting chain 32 and each sprocket 35, 36, 38 are used, the lifting chain 32 is moved while being engaged with each sprocket 35, 36, 38. The lifting chain 32 and the sprockets 35, 36, and 38 can be prevented from being worn and slipped due to the transmission of the rising force to the waterproof plate 20.

As described above, when the basic operation of raising the waterproof plate 20 is performed, the second guide sprocket 36 is rotated counterclockwise from the viewpoint of FIG. 3 as described above. This is a rotation in the direction indicated by VIIId in FIG. By keeping the waterproof board control means 40 in the posture shown in FIG. 8B with respect to such rotation, the waterproof board 20 rises without being obstructed.
When the waterproof plate 20 is raised, the waterproof plate 20 is moved to the passage exit side by the first pressing means 21 and the second pressing means 24 as shown in FIG. , 27b, and 27c to ensure high water blocking. In this embodiment, the first pressing means 21 and the second pressing means 24 press the waterproof plate 20 simultaneously in the upper and lower directions, so that a higher water stoppage is possible.

On the other hand, for some reason, for example, an inflow of water that exceeds the assumed amount of rainwater, the water enters the water collection pit 2a after the waterproof plate 20 is raised or in the middle of the rise, so Think about the case. In this case, the inside and outside of the water collection bucket 19 are filled with water, and the descending force when the water is filled only in the water collection bucket 19 is lost. Then, as described above, since the weight of the waterproof plate 20 is configured to be heavier than the weight of the water collecting bucket 19, the waterproof plate 20 cannot be kept rising, and the waterproof plate 20 A force acts in the downward direction.
Thus, when the waterproof board 20 is going to descend, the second guide sprocket 36 should be rotated clockwise from the viewpoint of FIG. However, if the waterproof board control means 40 is in the posture of FIG. 8B, the clockwise rotation indicated by VIIIf in FIG. 8B is restricted. As a result, it is possible to prevent the waterproof plate 20 once raised from dropping from the position. Therefore, it is possible to prevent an unintended descent of the waterproof board 20 from occurring after the waterproof board 20 is raised to rise. That is, the certainty of the operation of the waterproof board 20 can be improved. Further, at this time, the pressing force by the first pressing means 21 and the second pressing means 24 is also maintained, so that it is possible to keep the water stoppage high.

  Further, when the waterproof plate 20 is raised, the waterproof plate speed reducing means 50 is set in the posture shown in FIG. 10A, so that the speed of the waterproof plate 20 is suppressed by the action of the speed reduction sprocket 52. Thereby, a sudden rise of the waterproof board 20 is prevented, and an unexpected situation can be avoided.

  Further, at this time, the flap 63 of the water flow detection sensor 60 is rotated by flowing water, and the opening sensing plate 64 is also rotated following this, and the reed switch detects the magnetic force of the permanent magnet and transmits a signal. Therefore, before the waterproof board 20 is raised by the alarm device unit 4, an alarm is issued in advance.

  On the other hand, in the posture shown in FIG. 3, when the waterproof plate control means 40 is in the posture shown in FIG. 8A, the second guide sprocket 36 is rotated in the direction of VIIIc via the control sprocket 41. Limited. This is a rotation in the direction in which the waterproof plate 20 is raised. Therefore, the rise of the waterproof board 20 can be intentionally restricted by setting the waterproof board control means 40 in the posture shown in FIG. This is effective when there is a reason to limit the rise of the waterproof board 20 due to the circumstances of the user.

  When the water is drawn after the waterproof plate 20 is lifted, for example, when the rain stops, water flowing through the water conduit 17a disappears, and the water in the water collection bucket 19 and the water collection pit 2a is drained by the holes 19a and the drainage means 18. Then, a force is applied to return to the posture of FIG. However, when the waterproof board control means 40 is in the posture of FIG. 8B, the waterproof board 20 is restricted from descending. In response to this, by setting the waterproof board control means 40 to the posture shown in FIG. 8A, the waterproof board 20 is allowed to descend, and the waterproof board 20 can be lowered. At this time, the waterproof plate speed reducing means 50 is in the posture shown in FIG. 10B, and the speed reduction sprocket 52 is detached from the suspension chain 32, so that the resistance plate can be lowered and the waterproof plate 20 can be lowered.

DESCRIPTION OF SYMBOLS 1 Waterproof board apparatus 2 Passage opening / closing part 3 Mechanism accommodating part 4 Alarm apparatus part 10 Bottom plate 11-15 Partition member 16 Water intake groove 17 Water conveyance member 18 Drainage means 19 Water collecting bucket 20 Waterproof board 21 First pressing means 24 Second pressing means 27a ˜27c Seal member 28 Lid member 30 Housing 31 Transmission mechanism 32 Lifting chain 35 First guide sprocket 36 Second guide sprocket 37 Connecting bracket 38 Moving sprocket 40 Waterproof plate control means 50 Waterproof plate deceleration means 60 Water flow detection sensor

Claims (6)

A waterproof plate formed so as to be able to block water by rising from the road surface;
A waterproof board accommodation pit formed below the road surface so as to accommodate the waterproof board;
A water collecting pit provided in the passage where the waterproof board accommodating pit is formed, and formed so that water can flow in,
Based on the weight of water disposed in the water collection pit and stored in the water collection pit, a water collection bucket capable of moving up and down in the water collection pit,
A transmission mechanism for raising and lowering the waterproof plate based on the raising and lowering of the water collecting bucket;
A sealing member that contacts at least a part of one surface of the waterproof plate in a posture in which the waterproof plate is most elevated;
A pressing means that is disposed on the waterproof member and a receiving member that is paired with the pressing member;
The pressing means includes an inclined surface that is inclined with respect to an ascending / descending direction of the waterproof plate on at least one of the pressing member and the receiving member, and the pressing member and the receiving member are in a posture in which the waterproof plate is most elevated. And the waterproof surface is pressed against the seal member by pressing the inclined surface
A plurality of the pressing means are provided,
At least one of the pressing means is such that the pressing member is provided on the wall surface of the waterproof board accommodating pit, and the pressing member and the receiving member are in contact with each other at the lower end of the waterproof board in a posture where the waterproof board is in the most elevated position. And
The at least one other pressing means is arranged in a casing in which the pressing member is erected on the left and right of the passage, and the pressing member and the receiver are above the half of the waterproof plate in a posture where the waterproof plate is in the most elevated position. The member is in contact ,
The said other pressing means is a waterproof board apparatus provided in the same position as the said transmission mechanism seeing in the said left-right direction .   The waterproof board apparatus according to claim 1, wherein a distance between the pressing member and the receiving member of the one pressing means is the same as a distance between the pressing member and the receiving member of the other pressing means.   3. The pressing device according to claim 1, wherein one of the pressing member and the receiving member includes a surface that is inclined with respect to a vertical direction, and the other is provided with a wheel that rolls in contact with the inclined surface. Waterproof board device.   The waterproof board device according to any one of claims 1 to 3, wherein the transmission mechanism includes means for allowing the waterproof board to rise and restricting the waterproof board from descending. The transmission mechanism includes a chain connecting the waterproof plate and the water collecting bucket;
A sprocket that engages and rotates with the chain,
The waterproof board device according to claim 4, wherein the means for limiting the descent of the waterproof board is engaged with the sprocket teeth to limit the descent of the waterproof board. 6. The transmission mechanism according to claim 4, wherein the transmission mechanism includes means for restricting the rise of the waterproof board, means for restricting the fall of the waterproof board, and means for switching the means for restricting the rise of the waterproof board. Waterproof board device.

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