JP2005325621A - Waterproofing door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproofing door device capable of maintaining an upright state of a waterproofing door even if pressure oil to a hydraulic cylinder is leaked by using the hydraulic cylinder to erect the waterproofing door up right. <P>SOLUTION: A base section 22a of a supporting arm 22 is integrally connected to a driving shaft 20, a base section 24a of an oscillation arm 24 connected to a rod section 23a of a first hydraulic cylinder 23 is fixed to the driving shaft 20, a base section 28a of a pivoting arm 28 and a rod section 29a of a second hydraulic cylinder 29 are respectively connected to an intermediate shaft 27 inserted into a slot 26 formed in the front end section 22b of the supporting arm 22, and after the rod section 29a of the second hydraulic cylinder 29 has been moved, the waterproofing door 3 stands up to a standing up position C from a horizontal position A by moving the rod section 23a of the first hydraulic cylinder 23 and, at the same time, the pivoting arm 28 becomes in a straight state to the supporting arm 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a waterproof door device that mainly prevents inundation from entrances and exits of buildings and parking lots.

Conventionally, a waterproof door device is provided with a waterproof door in a case embedded in a floor surface of an entrance / exit of a building or a parking lot, and the waterproof door is manually operated (Patent Document 1) or a hydraulic cylinder (Patent Document 2). There is a known apparatus that stands up from a state in which the opening of the case is closed to a state in which the doorway is closed. In addition, a folding stopper (Patent Document 1) and a refractive stopper (Patent Document 2) are provided in order to maintain the standing waterproof door. However, the stopper of Patent Document 1 must move the cylindrical body loosely fitted to the lower link while supporting the waterproof door standing by the operator, and must take an unstable working posture. . In Patent Document 2, if the hydraulic oil leaks to the hydraulic cylinder during the installation of the stopper, the standing waterproof door may fall in the direction of closing the opening of the case.
Japanese Utility Model Publication No. 62-39131 Japanese Utility Model Publication No.59-144033

  In the present invention, in view of the technologies disclosed in Patent Documents 1 and 2, a waterproof door device is provided that can stand a waterproof door using a hydraulic cylinder and maintain the standing state of the waterproof door even when pressure oil leaks to the hydraulic cylinder. The purpose is to do.

  The present application relates to a waterproof door device in which a waterproof door is provided in a case embedded in a floor surface of an entrance, and the waterproof door is erected from a state in which the opening of the case is closed to a state in which the entrance is closed. A drive shaft parallel to the door width direction is rotatably provided at the tip of the waterproof door, and the base of the support arm is connected to the drive shaft so that the tip of the support arm faces the base of the waterproof door. The base of the swing arm having the tip connected to the rod portion of the first hydraulic cylinder is fixed to the drive shaft, and the base of the rotating arm is connected to the intermediate shaft inserted through the long hole formed in the tip of the support arm. The tip of the pivot arm is directed to the tip of the waterproof door, the tip of the pivot arm is pivotally attached to the waterproof door, and the rod portion of the second hydraulic cylinder installed on the support arm is attached to the intermediate shaft. When connecting and retracting the rod part, the intermediate shaft When the base of the pivot arm is pivoted while moving along the long hole of the support arm, the waterproof door is raised to an intermediate position, and then the rod portion of the first hydraulic cylinder is advanced. The base of the pivot arm is raised and pivoted to raise the waterproof door at the intermediate position, and a safety pin is inserted between the pin insertion hole formed in the pivot arm and the long hole of the support arm. It is configured to be inserted and maintain the standing state of the waterproof door. Specifically, the length of the pivot arm and the longitudinal length of the long hole of the support arm are set so that the waterproof door is erected and the pivot arm is in a linear state with respect to the support arm. It is characterized by.

  In the present invention, when the rod portion of the second hydraulic cylinder installed on the support arm is retracted, the base of the rotation arm moves along the long hole of the support arm via the intermediate shaft, thereby rotating the waterproof door. When the rod portion of the first hydraulic cylinder is moved forward, the base of the rotating arm is raised and rotated via the support arm, so that the waterproof door at the intermediate position is raised. Since the safety pin is inserted between the pin insertion hole formed in the rotating arm and the long hole of the support arm, the waterproof door is kept upright. Even if pressure oil leaks to the cylinder, the standing state of the waterproof door can be maintained by the rotating arm and the support arm.

  The waterproof door device 1 shown in FIG. 1 is provided with a waterproof door 3 in a case 2 embedded in a floor surface F of an entrance / exit of a building or a parking lot, and the waterproof door 3 closes an opening of the case 2 ( From the horizontal position A) in FIG. 2, the doorway is raised to a state of closing (the standing position C in FIG. 8). Further, when the waterproof door 3 is erected from the horizontal position A by the hinge 10 connected to the base portion 3a of the waterproof door 3, the base portion 3a of the waterproof door 3 is erected on the left and right sides of the front plate 2a side of the case 2 The door 4 is rotated toward the door frame 5 while being retracted away from the door frame 5 with the member 4. An edge member 6 is attached along the case 2. A packing member 7 is attached to the front plate 2 a of the case 2 in the horizontal direction, and is continuous with both ends of the packing member 7 and the lower end portion of the packing member 4 in the vertical direction of the door frame 5. The packing member 4 passes through notches formed at both end portions on the base 3a side of the waterproof door 3 corresponding to the packing member 4 so as not to interfere with the waterproof door 3 at the horizontal position A. A drain pipe (not shown) is connected to the case 2, and water that has entered the case 2 through the drain pipe is drained. A support member 8 is attached to the rear plate 2b of the case 2 to support the tip 3b of the waterproof door 3 at the horizontal position A.

  The hinge 10 will be described. A fixed base 11 is fixedly disposed on the bottom plate 2c of the case 2 on the left and right sides on the front plate 2a side. Each fixed base 11 is pivotally supported by a support shaft 13 at the distal ends of a pair of left and right movable bases 12 connected by a contact member 17. A lower end portion of the first link 14 provided with the link operation fixing portion 14a is rotatably connected to an intermediate portion of the movable base 12 (a position behind the support shaft 13). A lower end portion of the second link 15 set longer than the length of the first link 14 is pin-connected to the rear end of the movable base 12 so as to be rotatable. The other end portions of the first and second links 14 and 15 are pivotally attached to a door mounting member 16 that is integrally fixed to the waterproof door 3. By connecting the hinge 10 of this four-bar link structure to the base 3a of the waterproof door 3, when the tip 3b of the waterproof door 3 is swung in the standing direction, the link operation of the first and second links 14 and 15 is performed. The base 3 a of the waterproof door 3 is retracted away from the door frame 5. When the link operation fixing portion 14 a of the first link 14 contacts the contact member 17, the link operations of the first and second links 14 and 15 are fixed, and the waterproof has been moved backward away from the door frame 5. The operation of the base 3a of the door 3 is stopped. Thereafter, the base 3 a of the waterproof door 3 is rotated toward the door frame 5 by the movable base 12 swinging toward the door frame 5 together with the first and second links 14 and 15. ing.

  On the bottom plate 2 c of the case 2, a first bracket 21 having a drive shaft 20 parallel to the door width direction is fixedly disposed on the rear plate 2 b side corresponding to the hinge 10. A base portion 22 a of a pair of left and right support arms 22 is integrally connected to the drive shaft 20, and a distal end portion 22 b of each support arm 22 is provided so as to face the base portion 3 a of the waterproof door 3. Further, a base portion 24 a of a swing arm 24 whose tip is connected to the rod portion 23 a of the first hydraulic cylinder 23 is fixed to the drive shaft 20. The first hydraulic cylinder 23 is rotatably supported by a second bracket 25 installed on the bottom plate 2 c of the case 2. A long hole 26 is formed in the distal end portion 22 b of the support arm 22. A base portion 28 a of a rotating arm 28 is integrally connected to an intermediate shaft 27 inserted through the long hole 26, and a distal end portion 28 b of the rotating arm 28 is provided so as to face the distal end portion 3 b of the waterproof door 3. A rod portion 29 a of a second hydraulic cylinder 29 installed on the support arm 22 is rotatably connected to the intermediate shaft 27. A pin insertion hole 30 having the same diameter as the long hole 26 of the support arm 22 is formed on the base 28 a side of the rotating arm 28. A third bracket 32 having a pin 31 in the same direction as the drive shaft 20 protrudes from the lower surface of the distal end portion 3 b of the waterproof door 3. A tip end portion 28 b of the pivot arm 28 is pivotally attached to the waterproof door 3 via the pin 31. The length P of the pivot arm 28 (between the center of the pin 31 and the center of the intermediate shaft 27) and the longitudinal length L of the long hole 26 of the support arm 22 are such that the tip 22b of the support arm 22 is centered on the drive shaft 20. The rotation arm 28 is set so as to be linear with respect to the support arm 22 when moved upward by 45 degrees. In this embodiment, the base portion 28a of the rotating arm 28 and the intermediate shaft 27 are integrally connected, and the rod portion 29a of the second hydraulic cylinder 29 is rotatably connected to the intermediate shaft 27. The base portion 28a of the arm 28 and the intermediate shaft 27 may be rotatably connected, and the rod portion 29a of the second hydraulic cylinder 29 may be integrally connected to the intermediate shaft 27.

  A hydraulic pump 41 driven by a drive motor 40 is provided outside the case 2, and the hydraulic pump 41 and the first and second hydraulic cylinders 23 and 29 are connected via a hydraulic circuit 43 including valve members 42 a to 42 c. It is connected. The hydraulic circuit 43 drives the hydraulic pump 41 by the drive motor 40 when the waterproof door 3 is raised from the horizontal position A to the standing position C, and the rod portion 29a of the second hydraulic cylinder 29 is moved backward by the stroke S2. The rod portion 23a of the first hydraulic cylinder 23 is advanced by the stroke S1. When the waterproof door 3 is tilted from the standing position C to the horizontal position A, the hydraulic pump 41 is driven by the drive motor 40 and the rod portion 23a of the first hydraulic cylinder 23 is moved backward by the stroke S1. The rod portion 29a is advanced by the stroke S2. And after each rod part 23a, 29a moves predetermined stroke S1, S2, the movement position of each rod part 23a, 29a is maintained with the stop of the hydraulic pump 41. FIG. Further, in the hydraulic circuit 43, the hydraulic pump 41 stops when the rod portions 23a and 29a do not move by the predetermined strokes S1 and S2. In the present embodiment, the stroke S2 of the rod portion 29a of the second hydraulic cylinder 29 has the same longitudinal length L of the long hole 26 of the support arm 22.

  Next, the operation of the waterproof door device 1 configured as described above will be described. The waterproof door device 1 installed on the floor F of the entrance / exit of a building or a parking lot normally has the waterproof door 3 in a state of closing the opening of the case 2 (horizontal position A). When there is a risk of flooding at the entrance / exit of buildings, parking lots, etc. due to heavy rain, the hydraulic pump 41 is driven by the drive motor 40 and the rod portion 29a of the second hydraulic cylinder 29 is retracted via the hydraulic circuit 43. Let The movement of the rod portion 29 a of the second hydraulic cylinder 29 causes the waterproof door 3 to stand up by rotating while the base portion 28 a of the rotating arm 28 moves along the long hole 26 of the support arm 22 via the intermediate shaft 27. (FIG. 4). The base 3 a of the waterproof door 3 is retreated so as to be separated from the door frame 5 by the link operation of the first and second links 14 and 15. Thereafter, when the rod portion 29a moves backward by the stroke S2 (length L in the longitudinal direction of the long hole 26), the movement of the rod portion 29a is stopped. At that time, the intermediate shaft 27 comes into contact with one end of the long hole 26 of the support arm 22 and the waterproof door 3 stands at the intermediate position B (FIG. 5). Subsequently, the rod portion 23a of the first hydraulic cylinder 23 is advanced. By the movement of the rod portion 23a of the first hydraulic cylinder 23, the distal end portion 22b of the support arm 22 moves upward about the drive shaft 20 via the swing arm 24 (FIG. 6). And the waterproof door 3 moves to a standing direction because the base 28a of the rotation arm 28 rotates while raising through the intermediate shaft 27. The base portion 3a of the waterproof door 3 that has been retracted away from the door frame 5 has the first and second links 14, 14 because the link operation fixing portion 14 a of the first link 14 is in contact with the contact member 17. The link operation of 15 is fixed and turned toward the door frame 5 (FIG. 7).

  When the rod portion 23a of the first hydraulic cylinder 23 moves forward by the stroke S1, the movement of the rod portion 23a stops. At that time, the waterproof door 3 at the intermediate position B stands at the standing position C in contact with the packing member 4 of the door frame 5 and the packing member 7 of the case 2, and the rotating arm 28 is linear with respect to the support arm 22. (FIG. 8). By closing the entrance / exit with the standing waterproof door 3, flooding from the entrance / exit is prevented. Since the pin insertion hole 30 formed in the rotation arm 28 is on the axis of the long hole 26 of the support arm 22, the safety pin 50 is inserted between the pin insertion hole 30 and the long hole 26 to rotate the rotation arm. 28 and the support arm 22 are kept in a straight line state. The safety pin 50 is normally held by a holder (not shown) installed on the lower surface of the waterproof door 3, and is used by being removed therefrom. In this way, the waterproof door 3 is erected using the first and second hydraulic cylinders 23, 29, and the erected waterproof door 3 is supported by the rotating arm 28 and the support arm 22, so that the hydraulic cylinders 23, 29 are supported. Even if the pressure oil leaks, the standing state of the waterproof door 3 is reliably maintained. Further, the pivot arm 28 and the support arm 22 can be formed into a rod-like body by a safety pin 50 which is cheaper than the conventional cylindrical body. In this embodiment, when the opening of the case 2 is closed again by the waterproof door 3, the safety pin 50 is removed from the rotating arm 28 and the support arm 22, and then the hydraulic pump 41 is driven to reverse the above. In operation, the tip 3b of the waterproof door 3 moves downward, and the opening of the case 2 is closed.

It is the waterproof door apparatus of this invention, Comprising: It is the figure which abbreviate | omitted the waterproof door. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is a figure which shows the state which moved the rod part of the 2nd hydraulic cylinder. It is a figure which shows the state which moved the rod part of the 2nd hydraulic cylinder further from FIG. It is a figure which shows the state which moved the rod part of the 1st hydraulic cylinder. It is a figure which shows the state which moved the rod part of the 1st hydraulic cylinder from FIG. It is a figure which shows the state which closed the entrance / exit with the waterproof door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproof door apparatus 2 Case 3 Waterproof door 3a Base part 3b Tip part 20 Drive shaft 22 Support arm 22a Base part 22b Tip part 24 Swing arm 24a Base part 26 Long hole 27 Intermediate shaft 28 Rotating arm 28a Base part 28b Tip part 23 1st hydraulic pressure Cylinder 23a Rod part 29 Second hydraulic cylinder 29a Rod part 30 Pin insertion hole 50 Safety pin P Rotating arm length L Longitudinal length B Intermediate position

Claims (2)

In a waterproof door device in which a waterproof door is provided in a case embedded in the floor surface of the doorway, and the waterproof door is erected from a state of closing the opening of the case to a state of closing the doorway, the waterproof door of the case A drive shaft parallel to the door width direction is rotatably provided on the front end side of the door, and the base of the support arm is integrally connected to the drive shaft so that the front end of the support arm faces the base of the waterproof door. The base part of the swinging arm whose tip is connected to the rod part of the first hydraulic cylinder is fixed to the base, and the base part of the rotary arm is connected to the intermediate shaft inserted through the long hole formed in the tip part of the support arm. The tip of the arm is provided so as to face the tip of the waterproof door, the tip of the pivot arm is pivotally attached to the waterproof door, and the rod portion of the second hydraulic cylinder installed on the support arm is connected to the intermediate shaft, When the rod part is retracted, it goes through the intermediate shaft When the base of the moving arm is rotated while moving along the long hole of the support arm, the waterproof door is raised to the intermediate position, and when the rod portion of the first hydraulic cylinder is subsequently advanced, it rotates through the support arm. The base of the moving arm is rotated while being raised so that the waterproof door at the intermediate position is raised, and a safety pin is inserted between the pin insertion hole formed in the rotating arm and the long hole of the support arm. A waterproof door device configured to maintain a standing state of the waterproof door. The length of the pivot arm and the length of the long hole of the support arm are set so that the waterproof door is raised and the pivot arm is in a linear state with respect to the support arm. Item 1. A waterproof door device according to item 1.

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