JPH0439532B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a flood door for preventing water from entering from the entrance of a building or subway in the event of a flood or the like.

《Prior art》 To prevent flooding from entrances and exits of buildings and subways due to flood damage or burst water pipes, various types of buried flood gates have been developed, as shown in Utility Model Publication No. 56-27356, and have been implemented in recent years. It is becoming more and more popular.

This is a box-shaped case buried near the entrance of a subway, and in the event of a flood, a seawall inside the case stands up to prevent flooding.

By the way, when burying the above-mentioned flood gate near the entrance of a subway, etc., it is natural that it is better if the installation space is as small as possible.
In the conventional flood gates mentioned above, the push-up mechanism including the push-up lever for raising the tide barrier is installed perpendicularly to the tide barrier, so the installation space is at least equal to the length of the push-up lever. As a result, there are restrictions on where the tide door can be installed, and since the lever is configured to protrude in multiple stages, the structure is complex and the installation cost is high.

《Object of the Invention》 In view of the above-mentioned problems, the present invention provides a push-up mechanism including a push-up lever in parallel with the above-mentioned seawall, thereby reducing the installation space as much as possible, making it easy to use in a small space. The object of the present invention is to provide a tide door that can be installed at low cost.

<Means for Solving the Problems> In order to achieve the above object, the present invention includes a box-shaped case with an upward opening that is buried in the floor surface, and a box-shaped case that is rotatably disposed at one end of the case. Also, a tide shield and a lid covering an upper opening of the case, a drive unit disposed along the longitudinal direction inside the case, a rotation transmission mechanism for transmitting the rotation of the drive unit, a screw screw connected to a drive sprocket constituting a rotation transmission mechanism via a chain, suspended in the longitudinal direction of the case, and rotated by driving of the drive unit; a nut slidably attached to a guide shaft provided in parallel with the above-mentioned nut, one end of which is connected to the nut via a universal joint, and the other end connected to a shaft provided on the back surface of the seawall; a push-up lever slidably connected via a universal joint and having a roller provided on its lower surface via a support member; and an inclined plate provided on the bottom surface of the case in the advancing direction of the roller. The present invention relates to a tide door characterized by comprising the following.

<<Description of Examples>> Next, examples of the tide door according to the present invention will be described in detail based on the drawings.

FIG. 1 is a plan view of a tide door according to the present invention, and FIG. 2 is a sectional view taken along the line -- in FIG. 1.

Reference numeral 1 denotes a floor surface of an entrance/exit of a building or a subway entrance, etc. A case 2 with an upward opening in which a tide door according to the present invention is housed is embedded in this floor surface 1, and a case 2 with an upward opening is embedded at one end of the case 2. A tide shield plate 3 and a pair of lids 4 are rotatably attached and are configured to cover the top surface of the case 2 at all times.

That is, a plurality of brackets 6 are attached to the support plate 5 provided in the case 2 along the longitudinal direction of the case 2, and the above-mentioned seawall is attached to the bracket 6 via a shaft 7. Board 3
is rotatably mounted.

Further, a hinge spring 8 is disposed adjacent to the bracket 6. One end of the hinge spring 8 is fixed on the support plate 5, and the other end is in contact with the back surface of the tide barrier plate 3, so that the hinge spring 8 is fixed to the support plate 5. It assists the rising drive of 3.

Reference numeral 9 denotes a drive unit section rotatably disposed within the case 2, and this drive unit section 9 has a built-in drive motor, speed reduction mechanism, etc. At the tip of the output shaft 10, a pair of drive sprockets 11a,
A manual drive unit 12 is connected to one side of the drive sprockets 11a and 11b in case of a power outage or the like.

13 is suspended at both ends of the case 2 in the longitudinal direction along the drive unit portion 9, and includes bearings 14a, 1
4b, 14c, and one side of this screw screw 13, that is, the bearing 14a and the case side 15 in FIG.
The direction of the thread between the screw threads a and the other side of the screw screw 13, that is, the direction of the thread between the bearing 14a and the case side 15b are opposite to each other.
nuts 16a, 16b, through b, 14c, respectively.
16c is screwed together.

Further, 17 is suspended between both ends of the case 2 in parallel with the screw screw 13, and the bearing 14 is suspended between both ends of the case 2.
A rod-shaped guide shaft is commonly supported by the nuts 16a, 14b, and 14c, and one end of the nuts 16a, 16b, and 16c is inserted into the guide shaft 17, so that when the screw screw 13 is driven, the nuts 16a, 16b , 16c are configured to be able to slide along the guide shaft 17 in a predetermined direction.

A pair of driven sprockets 19a, 19b are provided on the shaft of the screw screw 13 between the bearings 14b, 14c, and between the driving sprockets 11a, 11b and the driven sprockets 19a, 19b. , a pair of chains 20a and 20b are suspended, and are configured to rotationally transmit the rotation of the drive unit section 9 to the screw screw 13.

Due to the rotation of the screw screw 13, the nut 16a is moved rightward in FIG.
6b and 16c are configured to slide to the left along the guide shaft 17, respectively.

Further, a push-up lever 21 is disposed on the guide shaft 17 in parallel thereto, and one end of this lever 21 is connected to the nuts 16a, 16.
b, 16c, and the other end is slidably attached to a shaft 22 provided on the back surface of the tide barrier plate 3 via universal joints 23a, 23b, respectively.
A roller 25 is attached to the bottom surface of the case 2 via a support member 24 (see FIG. 3).

Further, on the bottom surface of the case 2, an inclined plate 26 is attached in the direction of movement of the roller 25 so that the roller 25 can run, and to assist the rising of the push-up lever 21.

On the other hand, inside the case 2, a seal member 27 made of rubber or the like is installed via a support member 28 on one side in the width direction, and when the tide barrier plate 3 is erected, its lower end portion comes into contact with the seal member 27. It is configured as follows.

Further, the lid body 4 is mounted on the shaft 2 on the support member 28.
Bracket 29 rotatably supported via 9a
A sealing member 30 made of rubber or the like is provided adjacent to the support member 28, and is configured such that the lower end portion of the lid 4 comes into contact when the lid 4 is erected. ing.

Further, on the case 2, a pair of support columns 31, 31 are erected at both ends in the longitudinal direction, and are configured to abut and support when the tide barrier plate 3 is erected. , pillars 31, 31
Sponge rubber 32 and caulking material 33 are buried on the side where the seawall plate 3 and the seawall plate 3 come into contact.

Although the tide gate of this application is constructed as described above,
Next, the overall operation will be explained.

When the pair of drive sprockets 11a, 11b are now rotationally driven by the drive unit section 9, the pair of driven sprockets 19a, 19b are rotated via the chains 20a, 20b.

Therefore, the driven sprockets 19a, 19
By rotating b, screw screw 1 installed coaxially
3 is also rotated, and this rotation causes screw screw 1
Three nuts 16a, 16 screwed into 3
b and 16c also begin to move in a predetermined direction along the installation direction of the screw screw 13, respectively.

In other words, the three nuts 16a, 16b, 1
6c, the nut 16a is screwed onto one side of the screw screw 13, that is, between the bearing 14a and the case side 15a in FIG.
3 in a predetermined direction, the guide shaft 17 and screw screw 1 move rightward in FIG.
It will move while being supported by 3.

FIG. 3 shows a universal joint 23a attached to the nut 16a.
This is a detailed view of the push-up lever 21 connected via the above-mentioned link. One side of the push-up lever 21, that is, the side of the universal joint 23b that is slidably supported by the shaft 22 on the back side of the tide barrier plate 3, floats, and the tide barrier plate 3
will begin to rise.

As the nut 16a moves to the right due to the rotation of the screw screw 13, the roller 25 ascends the inclined plate 26, and the push-up lever 21 rises, and the universal joint 23b attached to the other end Tide barrier board 3
It slides to the right in FIG. 3 while being supported by a shaft 22 provided on the back surface of the holder, and finally locks at the right end.

Here, when the nut 16a further moves to the right side due to the rotation of the screw screw 13, the universal joint 23b side of the push-up lever 21 moves as described above.
Since it is no longer possible to move to the right, the push-up lever 21 has already climbed up the inclined plate 26 via the rollers 25 and has been changed from its initial horizontal position to an upward position.
1 further rises, causing the tide protection plate 3 to stand up further and finally to stand up vertically. FIG. 4 shows the back side of the tide barrier 3 when it stands vertically as described above. As is clear from this figure, the push-up lever 21 is located at the right end of the tide barrier 3 and lifts the tide barrier 3. Supported vertically.

Incidentally, in the above, only the operation of the nut 16a was explained, but the operation of the other two nuts 16b and 16
c also operates in the same way except that the direction of movement is reversed, so a detailed explanation thereof will be omitted.

Note that the hinge spring 8 has one end connected to the case 2.
The other end is fixed to the support plate 5, and the other end is in contact with the tide barrier plate 3, and is arranged so as to constantly push the tide barrier plate 3 upward, so that it can assist the initial erection of the tide barrier plate 3. Become.

However, when the tide protection plate 3 is erected as described above,
Its lower end abuts the seal portion 27, and the lid body 4, which is slidably disposed on the tide barrier plate 3, also has a shaft 29a provided on the bracket 29.
The lower end portion thereof abuts against the sealing member 30 .

In addition, in the present tide door, water is prevented from entering from the lower part in a double manner by the tide plate 3 and the lid body 4 via the seal members 27 and 30 as described above.

Furthermore, when the tide protection plate 3 is erected as described above,
Both longitudinal ends of the surface of the seawall 3 are covered with sponge rubber 3.
2 and caulking allowance 33, the seawall plate 3 and the support pillar 31 are completely sealed, and sufficient tide protection is achieved against water intrusion from the sides.

<<Effects>> As described above, the tide door according to the present invention is provided with a drive unit, a screw screw, a nut, a guide shaft, etc. along the longitudinal direction of the box-shaped case, and a space between the nut and the back surface of the tide break plate is provided. The push-up lever is disposed parallel to the drive unit section, etc., and the push-up lever is moved in parallel to raise the tide barrier, so the push-up lever is not placed perpendicular to the tide barrier as in the past. The installation space for accommodating the push-up lever can be made as small as possible compared to the case where the push-up lever is installed. Therefore, the entire flood door can be constructed compactly, so there are no restrictions on the installation space, and the number of constituent members is small, and the structure is simple, which has the effect of reducing installation costs.

[Brief explanation of drawings]

Fig. 1 is a plan view of the tide door according to the present invention, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, Fig. 3 is a detailed view of the push-up lever, and Fig. 4 is a partial rear view of the tide protection plate. be. 1...Floor surface, 2...Case, 3...Tide barrier board, 4
... Lid body, 9 ... Drive unit part, 11a, 11
b... Drive sprocket, 12... Manual drive unit, 13... Screw screw, 16a, 16
b, 16c... Nut, 17... Guide shaft, 19a, 19b... Driven sprocket, 20
a, 20b... Chain, 21, 21... Push-up lever, 22... Shaft, 23a, 23b... Universal joint, 25... Roller, 26... Inclined plate.

Claims (1)

[Claims] 1. A box-shaped case with an upward opening that is buried in the floor;
a tide shield and a lid body rotatably disposed at one end of the case and covering an upper opening of the case; a drive unit disposed along the longitudinal direction within the case; A rotation transmission mechanism that transmits the rotation of the drive unit, and a drive sprocket that constitutes the rotation transmission mechanism are connected via a chain, are suspended in the longitudinal direction of the case, and are rotated by the drive of the drive unit. a nut screwed into the screw screw and slidably attached to a guide shaft provided parallel to the screw screw, one end of which is connected to the nut via a universal joint; a push-up lever whose other end is slidably connected to a shaft provided on the back surface of the tide barrier plate via a universal joint, and whose lower surface is provided with a roller via a support member; , an inclined plate provided in the traveling direction of the roller;